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[thirdparty/grsecurity-scrape.git] / test / grsecurity-3.1-4.0.4-201505272113.patch
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babefb38
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 3d16bcc..c31faf4 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 f8ccc21..83d192f 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@@ -171,6 +199,12 @@ 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 318d127..9aab0d1 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@@ -632,8 +633,10 @@ 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..fd09b46 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_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3915+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3916+ else
3917+ printk(KERN_ERR "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_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3929+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
3930+ else
3931+ printk(KERN_ERR "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_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3995+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3996+ else
3997+ printk(KERN_ERR "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_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
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_ERR "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 4e6ef89..21c27f2 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 d2bfbc2..a8eacd2 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@@ -109,7 +109,10 @@ void __init init_IRQ(void)
6688 #endif
6689 }
6690
6691+
6692 #ifdef DEBUG_STACKOVERFLOW
6693+extern void gr_handle_kernel_exploit(void);
6694+
6695 static inline void check_stack_overflow(void)
6696 {
6697 unsigned long sp;
6698@@ -125,6 +128,7 @@ static inline void check_stack_overflow(void)
6699 printk("do_IRQ: stack overflow: %ld\n",
6700 sp - sizeof(struct thread_info));
6701 dump_stack();
6702+ gr_handle_kernel_exploit();
6703 }
6704 }
6705 #else
6706diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
6707index 0614717..002fa43 100644
6708--- a/arch/mips/kernel/pm-cps.c
6709+++ b/arch/mips/kernel/pm-cps.c
6710@@ -172,7 +172,7 @@ int cps_pm_enter_state(enum cps_pm_state state)
6711 nc_core_ready_count = nc_addr;
6712
6713 /* Ensure ready_count is zero-initialised before the assembly runs */
6714- ACCESS_ONCE(*nc_core_ready_count) = 0;
6715+ ACCESS_ONCE_RW(*nc_core_ready_count) = 0;
6716 coupled_barrier(&per_cpu(pm_barrier, core), online);
6717
6718 /* Run the generated entry code */
6719diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
6720index bf85cc1..b365c61 100644
6721--- a/arch/mips/kernel/process.c
6722+++ b/arch/mips/kernel/process.c
6723@@ -535,18 +535,6 @@ out:
6724 return pc;
6725 }
6726
6727-/*
6728- * Don't forget that the stack pointer must be aligned on a 8 bytes
6729- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
6730- */
6731-unsigned long arch_align_stack(unsigned long sp)
6732-{
6733- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
6734- sp -= get_random_int() & ~PAGE_MASK;
6735-
6736- return sp & ALMASK;
6737-}
6738-
6739 static void arch_dump_stack(void *info)
6740 {
6741 struct pt_regs *regs;
6742diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
6743index 5104528..950bbdc 100644
6744--- a/arch/mips/kernel/ptrace.c
6745+++ b/arch/mips/kernel/ptrace.c
6746@@ -761,6 +761,10 @@ long arch_ptrace(struct task_struct *child, long request,
6747 return ret;
6748 }
6749
6750+#ifdef CONFIG_GRKERNSEC_SETXID
6751+extern void gr_delayed_cred_worker(void);
6752+#endif
6753+
6754 /*
6755 * Notification of system call entry/exit
6756 * - triggered by current->work.syscall_trace
6757@@ -779,6 +783,11 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
6758 tracehook_report_syscall_entry(regs))
6759 ret = -1;
6760
6761+#ifdef CONFIG_GRKERNSEC_SETXID
6762+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
6763+ gr_delayed_cred_worker();
6764+#endif
6765+
6766 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
6767 trace_sys_enter(regs, regs->regs[2]);
6768
6769diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
6770index 07fc524..b9d7f28 100644
6771--- a/arch/mips/kernel/reset.c
6772+++ b/arch/mips/kernel/reset.c
6773@@ -13,6 +13,7 @@
6774 #include <linux/reboot.h>
6775
6776 #include <asm/reboot.h>
6777+#include <asm/bug.h>
6778
6779 /*
6780 * Urgs ... Too many MIPS machines to handle this in a generic way.
6781@@ -29,16 +30,19 @@ void machine_restart(char *command)
6782 {
6783 if (_machine_restart)
6784 _machine_restart(command);
6785+ BUG();
6786 }
6787
6788 void machine_halt(void)
6789 {
6790 if (_machine_halt)
6791 _machine_halt();
6792+ BUG();
6793 }
6794
6795 void machine_power_off(void)
6796 {
6797 if (pm_power_off)
6798 pm_power_off();
6799+ BUG();
6800 }
6801diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
6802index 2242bdd..b284048 100644
6803--- a/arch/mips/kernel/sync-r4k.c
6804+++ b/arch/mips/kernel/sync-r4k.c
6805@@ -18,8 +18,8 @@
6806 #include <asm/mipsregs.h>
6807
6808 static atomic_t count_start_flag = ATOMIC_INIT(0);
6809-static atomic_t count_count_start = ATOMIC_INIT(0);
6810-static atomic_t count_count_stop = ATOMIC_INIT(0);
6811+static atomic_unchecked_t count_count_start = ATOMIC_INIT(0);
6812+static atomic_unchecked_t count_count_stop = ATOMIC_INIT(0);
6813 static atomic_t count_reference = ATOMIC_INIT(0);
6814
6815 #define COUNTON 100
6816@@ -58,13 +58,13 @@ void synchronise_count_master(int cpu)
6817
6818 for (i = 0; i < NR_LOOPS; i++) {
6819 /* slaves loop on '!= 2' */
6820- while (atomic_read(&count_count_start) != 1)
6821+ while (atomic_read_unchecked(&count_count_start) != 1)
6822 mb();
6823- atomic_set(&count_count_stop, 0);
6824+ atomic_set_unchecked(&count_count_stop, 0);
6825 smp_wmb();
6826
6827 /* this lets the slaves write their count register */
6828- atomic_inc(&count_count_start);
6829+ atomic_inc_unchecked(&count_count_start);
6830
6831 /*
6832 * Everyone initialises count in the last loop:
6833@@ -75,11 +75,11 @@ void synchronise_count_master(int cpu)
6834 /*
6835 * Wait for all slaves to leave the synchronization point:
6836 */
6837- while (atomic_read(&count_count_stop) != 1)
6838+ while (atomic_read_unchecked(&count_count_stop) != 1)
6839 mb();
6840- atomic_set(&count_count_start, 0);
6841+ atomic_set_unchecked(&count_count_start, 0);
6842 smp_wmb();
6843- atomic_inc(&count_count_stop);
6844+ atomic_inc_unchecked(&count_count_stop);
6845 }
6846 /* Arrange for an interrupt in a short while */
6847 write_c0_compare(read_c0_count() + COUNTON);
6848@@ -112,8 +112,8 @@ void synchronise_count_slave(int cpu)
6849 initcount = atomic_read(&count_reference);
6850
6851 for (i = 0; i < NR_LOOPS; i++) {
6852- atomic_inc(&count_count_start);
6853- while (atomic_read(&count_count_start) != 2)
6854+ atomic_inc_unchecked(&count_count_start);
6855+ while (atomic_read_unchecked(&count_count_start) != 2)
6856 mb();
6857
6858 /*
6859@@ -122,8 +122,8 @@ void synchronise_count_slave(int cpu)
6860 if (i == NR_LOOPS-1)
6861 write_c0_count(initcount);
6862
6863- atomic_inc(&count_count_stop);
6864- while (atomic_read(&count_count_stop) != 2)
6865+ atomic_inc_unchecked(&count_count_stop);
6866+ while (atomic_read_unchecked(&count_count_stop) != 2)
6867 mb();
6868 }
6869 /* Arrange for an interrupt in a short while */
6870diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
6871index 33984c0..666a96d 100644
6872--- a/arch/mips/kernel/traps.c
6873+++ b/arch/mips/kernel/traps.c
6874@@ -689,7 +689,18 @@ asmlinkage void do_ov(struct pt_regs *regs)
6875 siginfo_t info;
6876
6877 prev_state = exception_enter();
6878- die_if_kernel("Integer overflow", regs);
6879+ if (unlikely(!user_mode(regs))) {
6880+
6881+#ifdef CONFIG_PAX_REFCOUNT
6882+ if (fixup_exception(regs)) {
6883+ pax_report_refcount_overflow(regs);
6884+ exception_exit(prev_state);
6885+ return;
6886+ }
6887+#endif
6888+
6889+ die("Integer overflow", regs);
6890+ }
6891
6892 info.si_code = FPE_INTOVF;
6893 info.si_signo = SIGFPE;
6894diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
6895index f5e7dda..47198ec 100644
6896--- a/arch/mips/kvm/mips.c
6897+++ b/arch/mips/kvm/mips.c
6898@@ -816,7 +816,7 @@ long kvm_arch_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg)
6899 return r;
6900 }
6901
6902-int kvm_arch_init(void *opaque)
6903+int kvm_arch_init(const void *opaque)
6904 {
6905 if (kvm_mips_callbacks) {
6906 kvm_err("kvm: module already exists\n");
6907diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
6908index 7ff8637..6004edb 100644
6909--- a/arch/mips/mm/fault.c
6910+++ b/arch/mips/mm/fault.c
6911@@ -31,6 +31,23 @@
6912
6913 int show_unhandled_signals = 1;
6914
6915+#ifdef CONFIG_PAX_PAGEEXEC
6916+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
6917+{
6918+ unsigned long i;
6919+
6920+ printk(KERN_ERR "PAX: bytes at PC: ");
6921+ for (i = 0; i < 5; i++) {
6922+ unsigned int c;
6923+ if (get_user(c, (unsigned int *)pc+i))
6924+ printk(KERN_CONT "???????? ");
6925+ else
6926+ printk(KERN_CONT "%08x ", c);
6927+ }
6928+ printk("\n");
6929+}
6930+#endif
6931+
6932 /*
6933 * This routine handles page faults. It determines the address,
6934 * and the problem, and then passes it off to one of the appropriate
6935@@ -206,6 +223,14 @@ bad_area:
6936 bad_area_nosemaphore:
6937 /* User mode accesses just cause a SIGSEGV */
6938 if (user_mode(regs)) {
6939+
6940+#ifdef CONFIG_PAX_PAGEEXEC
6941+ if (cpu_has_rixi && (mm->pax_flags & MF_PAX_PAGEEXEC) && !write && address == instruction_pointer(regs)) {
6942+ pax_report_fault(regs, (void *)address, (void *)user_stack_pointer(regs));
6943+ do_group_exit(SIGKILL);
6944+ }
6945+#endif
6946+
6947 tsk->thread.cp0_badvaddr = address;
6948 tsk->thread.error_code = write;
6949 if (show_unhandled_signals &&
6950diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
6951index f1baadd..5472dca 100644
6952--- a/arch/mips/mm/mmap.c
6953+++ b/arch/mips/mm/mmap.c
6954@@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6955 struct vm_area_struct *vma;
6956 unsigned long addr = addr0;
6957 int do_color_align;
6958+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
6959 struct vm_unmapped_area_info info;
6960
6961 if (unlikely(len > TASK_SIZE))
6962@@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6963 do_color_align = 1;
6964
6965 /* requesting a specific address */
6966+
6967+#ifdef CONFIG_PAX_RANDMMAP
6968+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
6969+#endif
6970+
6971 if (addr) {
6972 if (do_color_align)
6973 addr = COLOUR_ALIGN(addr, pgoff);
6974@@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6975 addr = PAGE_ALIGN(addr);
6976
6977 vma = find_vma(mm, addr);
6978- if (TASK_SIZE - len >= addr &&
6979- (!vma || addr + len <= vma->vm_start))
6980+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
6981 return addr;
6982 }
6983
6984 info.length = len;
6985 info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
6986 info.align_offset = pgoff << PAGE_SHIFT;
6987+ info.threadstack_offset = offset;
6988
6989 if (dir == DOWN) {
6990 info.flags = VM_UNMAPPED_AREA_TOPDOWN;
6991@@ -146,6 +152,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
6992 {
6993 unsigned long random_factor = 0UL;
6994
6995+#ifdef CONFIG_PAX_RANDMMAP
6996+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
6997+#endif
6998+
6999 if (current->flags & PF_RANDOMIZE) {
7000 random_factor = get_random_int();
7001 random_factor = random_factor << PAGE_SHIFT;
7002@@ -157,40 +167,25 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7003
7004 if (mmap_is_legacy()) {
7005 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
7006+
7007+#ifdef CONFIG_PAX_RANDMMAP
7008+ if (mm->pax_flags & MF_PAX_RANDMMAP)
7009+ mm->mmap_base += mm->delta_mmap;
7010+#endif
7011+
7012 mm->get_unmapped_area = arch_get_unmapped_area;
7013 } else {
7014 mm->mmap_base = mmap_base(random_factor);
7015+
7016+#ifdef CONFIG_PAX_RANDMMAP
7017+ if (mm->pax_flags & MF_PAX_RANDMMAP)
7018+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7019+#endif
7020+
7021 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
7022 }
7023 }
7024
7025-static inline unsigned long brk_rnd(void)
7026-{
7027- unsigned long rnd = get_random_int();
7028-
7029- rnd = rnd << PAGE_SHIFT;
7030- /* 8MB for 32bit, 256MB for 64bit */
7031- if (TASK_IS_32BIT_ADDR)
7032- rnd = rnd & 0x7ffffful;
7033- else
7034- rnd = rnd & 0xffffffful;
7035-
7036- return rnd;
7037-}
7038-
7039-unsigned long arch_randomize_brk(struct mm_struct *mm)
7040-{
7041- unsigned long base = mm->brk;
7042- unsigned long ret;
7043-
7044- ret = PAGE_ALIGN(base + brk_rnd());
7045-
7046- if (ret < mm->brk)
7047- return mm->brk;
7048-
7049- return ret;
7050-}
7051-
7052 int __virt_addr_valid(const volatile void *kaddr)
7053 {
7054 return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
7055diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
7056index a2358b4..7cead4f 100644
7057--- a/arch/mips/sgi-ip27/ip27-nmi.c
7058+++ b/arch/mips/sgi-ip27/ip27-nmi.c
7059@@ -187,9 +187,9 @@ void
7060 cont_nmi_dump(void)
7061 {
7062 #ifndef REAL_NMI_SIGNAL
7063- static atomic_t nmied_cpus = ATOMIC_INIT(0);
7064+ static atomic_unchecked_t nmied_cpus = ATOMIC_INIT(0);
7065
7066- atomic_inc(&nmied_cpus);
7067+ atomic_inc_unchecked(&nmied_cpus);
7068 #endif
7069 /*
7070 * Only allow 1 cpu to proceed
7071@@ -233,7 +233,7 @@ cont_nmi_dump(void)
7072 udelay(10000);
7073 }
7074 #else
7075- while (atomic_read(&nmied_cpus) != num_online_cpus());
7076+ while (atomic_read_unchecked(&nmied_cpus) != num_online_cpus());
7077 #endif
7078
7079 /*
7080diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
7081index a046b30..6799527 100644
7082--- a/arch/mips/sni/rm200.c
7083+++ b/arch/mips/sni/rm200.c
7084@@ -270,7 +270,7 @@ spurious_8259A_irq:
7085 "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
7086 spurious_irq_mask |= irqmask;
7087 }
7088- atomic_inc(&irq_err_count);
7089+ atomic_inc_unchecked(&irq_err_count);
7090 /*
7091 * Theoretically we do not have to handle this IRQ,
7092 * but in Linux this does not cause problems and is
7093diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
7094index 41e873b..34d33a7 100644
7095--- a/arch/mips/vr41xx/common/icu.c
7096+++ b/arch/mips/vr41xx/common/icu.c
7097@@ -653,7 +653,7 @@ static int icu_get_irq(unsigned int irq)
7098
7099 printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);
7100
7101- atomic_inc(&irq_err_count);
7102+ atomic_inc_unchecked(&irq_err_count);
7103
7104 return -1;
7105 }
7106diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
7107index ae0e4ee..e8f0692 100644
7108--- a/arch/mips/vr41xx/common/irq.c
7109+++ b/arch/mips/vr41xx/common/irq.c
7110@@ -64,7 +64,7 @@ static void irq_dispatch(unsigned int irq)
7111 irq_cascade_t *cascade;
7112
7113 if (irq >= NR_IRQS) {
7114- atomic_inc(&irq_err_count);
7115+ atomic_inc_unchecked(&irq_err_count);
7116 return;
7117 }
7118
7119@@ -84,7 +84,7 @@ static void irq_dispatch(unsigned int irq)
7120 ret = cascade->get_irq(irq);
7121 irq = ret;
7122 if (ret < 0)
7123- atomic_inc(&irq_err_count);
7124+ atomic_inc_unchecked(&irq_err_count);
7125 else
7126 irq_dispatch(irq);
7127 if (!irqd_irq_disabled(idata) && chip->irq_unmask)
7128diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7129index 967d144..db12197 100644
7130--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
7131+++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7132@@ -11,12 +11,14 @@
7133 #ifndef _ASM_PROC_CACHE_H
7134 #define _ASM_PROC_CACHE_H
7135
7136+#include <linux/const.h>
7137+
7138 /* L1 cache */
7139
7140 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7141 #define L1_CACHE_NENTRIES 256 /* number of entries in each way */
7142-#define L1_CACHE_BYTES 16 /* bytes per entry */
7143 #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */
7144+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7145 #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */
7146
7147 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7148diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7149index bcb5df2..84fabd2 100644
7150--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7151+++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7152@@ -16,13 +16,15 @@
7153 #ifndef _ASM_PROC_CACHE_H
7154 #define _ASM_PROC_CACHE_H
7155
7156+#include <linux/const.h>
7157+
7158 /*
7159 * L1 cache
7160 */
7161 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7162 #define L1_CACHE_NENTRIES 128 /* number of entries in each way */
7163-#define L1_CACHE_BYTES 32 /* bytes per entry */
7164 #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
7165+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7166 #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
7167
7168 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7169diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
7170index 4ce7a01..449202a 100644
7171--- a/arch/openrisc/include/asm/cache.h
7172+++ b/arch/openrisc/include/asm/cache.h
7173@@ -19,11 +19,13 @@
7174 #ifndef __ASM_OPENRISC_CACHE_H
7175 #define __ASM_OPENRISC_CACHE_H
7176
7177+#include <linux/const.h>
7178+
7179 /* FIXME: How can we replace these with values from the CPU...
7180 * they shouldn't be hard-coded!
7181 */
7182
7183-#define L1_CACHE_BYTES 16
7184 #define L1_CACHE_SHIFT 4
7185+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7186
7187 #endif /* __ASM_OPENRISC_CACHE_H */
7188diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
7189index 226f8ca..9d9b87d 100644
7190--- a/arch/parisc/include/asm/atomic.h
7191+++ b/arch/parisc/include/asm/atomic.h
7192@@ -273,6 +273,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
7193 return dec;
7194 }
7195
7196+#define atomic64_read_unchecked(v) atomic64_read(v)
7197+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
7198+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
7199+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
7200+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
7201+#define atomic64_inc_unchecked(v) atomic64_inc(v)
7202+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
7203+#define atomic64_dec_unchecked(v) atomic64_dec(v)
7204+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
7205+
7206 #endif /* !CONFIG_64BIT */
7207
7208
7209diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
7210index 47f11c7..3420df2 100644
7211--- a/arch/parisc/include/asm/cache.h
7212+++ b/arch/parisc/include/asm/cache.h
7213@@ -5,6 +5,7 @@
7214 #ifndef __ARCH_PARISC_CACHE_H
7215 #define __ARCH_PARISC_CACHE_H
7216
7217+#include <linux/const.h>
7218
7219 /*
7220 * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
7221@@ -15,13 +16,13 @@
7222 * just ruin performance.
7223 */
7224 #ifdef CONFIG_PA20
7225-#define L1_CACHE_BYTES 64
7226 #define L1_CACHE_SHIFT 6
7227 #else
7228-#define L1_CACHE_BYTES 32
7229 #define L1_CACHE_SHIFT 5
7230 #endif
7231
7232+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7233+
7234 #ifndef __ASSEMBLY__
7235
7236 #define SMP_CACHE_BYTES L1_CACHE_BYTES
7237diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
7238index 3391d06..c23a2cc 100644
7239--- a/arch/parisc/include/asm/elf.h
7240+++ b/arch/parisc/include/asm/elf.h
7241@@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */
7242
7243 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
7244
7245+#ifdef CONFIG_PAX_ASLR
7246+#define PAX_ELF_ET_DYN_BASE 0x10000UL
7247+
7248+#define PAX_DELTA_MMAP_LEN 16
7249+#define PAX_DELTA_STACK_LEN 16
7250+#endif
7251+
7252 /* This yields a mask that user programs can use to figure out what
7253 instruction set this CPU supports. This could be done in user space,
7254 but it's not easy, and we've already done it here. */
7255diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
7256index d174372..f27fe5c 100644
7257--- a/arch/parisc/include/asm/pgalloc.h
7258+++ b/arch/parisc/include/asm/pgalloc.h
7259@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7260 (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
7261 }
7262
7263+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7264+{
7265+ pgd_populate(mm, pgd, pmd);
7266+}
7267+
7268 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
7269 {
7270 pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
7271@@ -96,6 +101,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
7272 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
7273 #define pmd_free(mm, x) do { } while (0)
7274 #define pgd_populate(mm, pmd, pte) BUG()
7275+#define pgd_populate_kernel(mm, pmd, pte) BUG()
7276
7277 #endif
7278
7279diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
7280index 15207b9..3209e65 100644
7281--- a/arch/parisc/include/asm/pgtable.h
7282+++ b/arch/parisc/include/asm/pgtable.h
7283@@ -215,6 +215,17 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
7284 #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
7285 #define PAGE_COPY PAGE_EXECREAD
7286 #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
7287+
7288+#ifdef CONFIG_PAX_PAGEEXEC
7289+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
7290+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7291+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7292+#else
7293+# define PAGE_SHARED_NOEXEC PAGE_SHARED
7294+# define PAGE_COPY_NOEXEC PAGE_COPY
7295+# define PAGE_READONLY_NOEXEC PAGE_READONLY
7296+#endif
7297+
7298 #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
7299 #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
7300 #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX)
7301diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
7302index 0abdd4c..1af92f0 100644
7303--- a/arch/parisc/include/asm/uaccess.h
7304+++ b/arch/parisc/include/asm/uaccess.h
7305@@ -243,10 +243,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
7306 const void __user *from,
7307 unsigned long n)
7308 {
7309- int sz = __compiletime_object_size(to);
7310+ size_t sz = __compiletime_object_size(to);
7311 int ret = -EFAULT;
7312
7313- if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
7314+ if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
7315 ret = __copy_from_user(to, from, n);
7316 else
7317 copy_from_user_overflow();
7318diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
7319index 3c63a82..b1d6ee9 100644
7320--- a/arch/parisc/kernel/module.c
7321+++ b/arch/parisc/kernel/module.c
7322@@ -98,16 +98,38 @@
7323
7324 /* three functions to determine where in the module core
7325 * or init pieces the location is */
7326+static inline int in_init_rx(struct module *me, void *loc)
7327+{
7328+ return (loc >= me->module_init_rx &&
7329+ loc < (me->module_init_rx + me->init_size_rx));
7330+}
7331+
7332+static inline int in_init_rw(struct module *me, void *loc)
7333+{
7334+ return (loc >= me->module_init_rw &&
7335+ loc < (me->module_init_rw + me->init_size_rw));
7336+}
7337+
7338 static inline int in_init(struct module *me, void *loc)
7339 {
7340- return (loc >= me->module_init &&
7341- loc <= (me->module_init + me->init_size));
7342+ return in_init_rx(me, loc) || in_init_rw(me, loc);
7343+}
7344+
7345+static inline int in_core_rx(struct module *me, void *loc)
7346+{
7347+ return (loc >= me->module_core_rx &&
7348+ loc < (me->module_core_rx + me->core_size_rx));
7349+}
7350+
7351+static inline int in_core_rw(struct module *me, void *loc)
7352+{
7353+ return (loc >= me->module_core_rw &&
7354+ loc < (me->module_core_rw + me->core_size_rw));
7355 }
7356
7357 static inline int in_core(struct module *me, void *loc)
7358 {
7359- return (loc >= me->module_core &&
7360- loc <= (me->module_core + me->core_size));
7361+ return in_core_rx(me, loc) || in_core_rw(me, loc);
7362 }
7363
7364 static inline int in_local(struct module *me, void *loc)
7365@@ -367,13 +389,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
7366 }
7367
7368 /* align things a bit */
7369- me->core_size = ALIGN(me->core_size, 16);
7370- me->arch.got_offset = me->core_size;
7371- me->core_size += gots * sizeof(struct got_entry);
7372+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
7373+ me->arch.got_offset = me->core_size_rw;
7374+ me->core_size_rw += gots * sizeof(struct got_entry);
7375
7376- me->core_size = ALIGN(me->core_size, 16);
7377- me->arch.fdesc_offset = me->core_size;
7378- me->core_size += fdescs * sizeof(Elf_Fdesc);
7379+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
7380+ me->arch.fdesc_offset = me->core_size_rw;
7381+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
7382
7383 me->arch.got_max = gots;
7384 me->arch.fdesc_max = fdescs;
7385@@ -391,7 +413,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7386
7387 BUG_ON(value == 0);
7388
7389- got = me->module_core + me->arch.got_offset;
7390+ got = me->module_core_rw + me->arch.got_offset;
7391 for (i = 0; got[i].addr; i++)
7392 if (got[i].addr == value)
7393 goto out;
7394@@ -409,7 +431,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7395 #ifdef CONFIG_64BIT
7396 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7397 {
7398- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
7399+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
7400
7401 if (!value) {
7402 printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
7403@@ -427,7 +449,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7404
7405 /* Create new one */
7406 fdesc->addr = value;
7407- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7408+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7409 return (Elf_Addr)fdesc;
7410 }
7411 #endif /* CONFIG_64BIT */
7412@@ -839,7 +861,7 @@ register_unwind_table(struct module *me,
7413
7414 table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
7415 end = table + sechdrs[me->arch.unwind_section].sh_size;
7416- gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7417+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7418
7419 DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
7420 me->arch.unwind_section, table, end, gp);
7421diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
7422index e1ffea2..46ed66e 100644
7423--- a/arch/parisc/kernel/sys_parisc.c
7424+++ b/arch/parisc/kernel/sys_parisc.c
7425@@ -89,6 +89,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7426 unsigned long task_size = TASK_SIZE;
7427 int do_color_align, last_mmap;
7428 struct vm_unmapped_area_info info;
7429+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7430
7431 if (len > task_size)
7432 return -ENOMEM;
7433@@ -106,6 +107,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7434 goto found_addr;
7435 }
7436
7437+#ifdef CONFIG_PAX_RANDMMAP
7438+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7439+#endif
7440+
7441 if (addr) {
7442 if (do_color_align && last_mmap)
7443 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7444@@ -124,6 +129,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7445 info.high_limit = mmap_upper_limit();
7446 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7447 info.align_offset = shared_align_offset(last_mmap, pgoff);
7448+ info.threadstack_offset = offset;
7449 addr = vm_unmapped_area(&info);
7450
7451 found_addr:
7452@@ -143,6 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7453 unsigned long addr = addr0;
7454 int do_color_align, last_mmap;
7455 struct vm_unmapped_area_info info;
7456+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7457
7458 #ifdef CONFIG_64BIT
7459 /* This should only ever run for 32-bit processes. */
7460@@ -167,6 +174,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7461 }
7462
7463 /* requesting a specific address */
7464+#ifdef CONFIG_PAX_RANDMMAP
7465+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7466+#endif
7467+
7468 if (addr) {
7469 if (do_color_align && last_mmap)
7470 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7471@@ -184,6 +195,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7472 info.high_limit = mm->mmap_base;
7473 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7474 info.align_offset = shared_align_offset(last_mmap, pgoff);
7475+ info.threadstack_offset = offset;
7476 addr = vm_unmapped_area(&info);
7477 if (!(addr & ~PAGE_MASK))
7478 goto found_addr;
7479@@ -249,6 +261,13 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7480 mm->mmap_legacy_base = mmap_legacy_base();
7481 mm->mmap_base = mmap_upper_limit();
7482
7483+#ifdef CONFIG_PAX_RANDMMAP
7484+ if (mm->pax_flags & MF_PAX_RANDMMAP) {
7485+ mm->mmap_legacy_base += mm->delta_mmap;
7486+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7487+ }
7488+#endif
7489+
7490 if (mmap_is_legacy()) {
7491 mm->mmap_base = mm->mmap_legacy_base;
7492 mm->get_unmapped_area = arch_get_unmapped_area;
7493diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
7494index 47ee620..1107387 100644
7495--- a/arch/parisc/kernel/traps.c
7496+++ b/arch/parisc/kernel/traps.c
7497@@ -726,9 +726,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
7498
7499 down_read(&current->mm->mmap_sem);
7500 vma = find_vma(current->mm,regs->iaoq[0]);
7501- if (vma && (regs->iaoq[0] >= vma->vm_start)
7502- && (vma->vm_flags & VM_EXEC)) {
7503-
7504+ if (vma && (regs->iaoq[0] >= vma->vm_start)) {
7505 fault_address = regs->iaoq[0];
7506 fault_space = regs->iasq[0];
7507
7508diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
7509index e5120e6..8ddb5cc 100644
7510--- a/arch/parisc/mm/fault.c
7511+++ b/arch/parisc/mm/fault.c
7512@@ -15,6 +15,7 @@
7513 #include <linux/sched.h>
7514 #include <linux/interrupt.h>
7515 #include <linux/module.h>
7516+#include <linux/unistd.h>
7517
7518 #include <asm/uaccess.h>
7519 #include <asm/traps.h>
7520@@ -50,7 +51,7 @@ int show_unhandled_signals = 1;
7521 static unsigned long
7522 parisc_acctyp(unsigned long code, unsigned int inst)
7523 {
7524- if (code == 6 || code == 16)
7525+ if (code == 6 || code == 7 || code == 16)
7526 return VM_EXEC;
7527
7528 switch (inst & 0xf0000000) {
7529@@ -136,6 +137,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
7530 }
7531 #endif
7532
7533+#ifdef CONFIG_PAX_PAGEEXEC
7534+/*
7535+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
7536+ *
7537+ * returns 1 when task should be killed
7538+ * 2 when rt_sigreturn trampoline was detected
7539+ * 3 when unpatched PLT trampoline was detected
7540+ */
7541+static int pax_handle_fetch_fault(struct pt_regs *regs)
7542+{
7543+
7544+#ifdef CONFIG_PAX_EMUPLT
7545+ int err;
7546+
7547+ do { /* PaX: unpatched PLT emulation */
7548+ unsigned int bl, depwi;
7549+
7550+ err = get_user(bl, (unsigned int *)instruction_pointer(regs));
7551+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
7552+
7553+ if (err)
7554+ break;
7555+
7556+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
7557+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
7558+
7559+ err = get_user(ldw, (unsigned int *)addr);
7560+ err |= get_user(bv, (unsigned int *)(addr+4));
7561+ err |= get_user(ldw2, (unsigned int *)(addr+8));
7562+
7563+ if (err)
7564+ break;
7565+
7566+ if (ldw == 0x0E801096U &&
7567+ bv == 0xEAC0C000U &&
7568+ ldw2 == 0x0E881095U)
7569+ {
7570+ unsigned int resolver, map;
7571+
7572+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
7573+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
7574+ if (err)
7575+ break;
7576+
7577+ regs->gr[20] = instruction_pointer(regs)+8;
7578+ regs->gr[21] = map;
7579+ regs->gr[22] = resolver;
7580+ regs->iaoq[0] = resolver | 3UL;
7581+ regs->iaoq[1] = regs->iaoq[0] + 4;
7582+ return 3;
7583+ }
7584+ }
7585+ } while (0);
7586+#endif
7587+
7588+#ifdef CONFIG_PAX_EMUTRAMP
7589+
7590+#ifndef CONFIG_PAX_EMUSIGRT
7591+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
7592+ return 1;
7593+#endif
7594+
7595+ do { /* PaX: rt_sigreturn emulation */
7596+ unsigned int ldi1, ldi2, bel, nop;
7597+
7598+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
7599+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
7600+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
7601+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
7602+
7603+ if (err)
7604+ break;
7605+
7606+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
7607+ ldi2 == 0x3414015AU &&
7608+ bel == 0xE4008200U &&
7609+ nop == 0x08000240U)
7610+ {
7611+ regs->gr[25] = (ldi1 & 2) >> 1;
7612+ regs->gr[20] = __NR_rt_sigreturn;
7613+ regs->gr[31] = regs->iaoq[1] + 16;
7614+ regs->sr[0] = regs->iasq[1];
7615+ regs->iaoq[0] = 0x100UL;
7616+ regs->iaoq[1] = regs->iaoq[0] + 4;
7617+ regs->iasq[0] = regs->sr[2];
7618+ regs->iasq[1] = regs->sr[2];
7619+ return 2;
7620+ }
7621+ } while (0);
7622+#endif
7623+
7624+ return 1;
7625+}
7626+
7627+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
7628+{
7629+ unsigned long i;
7630+
7631+ printk(KERN_ERR "PAX: bytes at PC: ");
7632+ for (i = 0; i < 5; i++) {
7633+ unsigned int c;
7634+ if (get_user(c, (unsigned int *)pc+i))
7635+ printk(KERN_CONT "???????? ");
7636+ else
7637+ printk(KERN_CONT "%08x ", c);
7638+ }
7639+ printk("\n");
7640+}
7641+#endif
7642+
7643 int fixup_exception(struct pt_regs *regs)
7644 {
7645 const struct exception_table_entry *fix;
7646@@ -234,8 +345,33 @@ retry:
7647
7648 good_area:
7649
7650- if ((vma->vm_flags & acc_type) != acc_type)
7651+ if ((vma->vm_flags & acc_type) != acc_type) {
7652+
7653+#ifdef CONFIG_PAX_PAGEEXEC
7654+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
7655+ (address & ~3UL) == instruction_pointer(regs))
7656+ {
7657+ up_read(&mm->mmap_sem);
7658+ switch (pax_handle_fetch_fault(regs)) {
7659+
7660+#ifdef CONFIG_PAX_EMUPLT
7661+ case 3:
7662+ return;
7663+#endif
7664+
7665+#ifdef CONFIG_PAX_EMUTRAMP
7666+ case 2:
7667+ return;
7668+#endif
7669+
7670+ }
7671+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
7672+ do_group_exit(SIGKILL);
7673+ }
7674+#endif
7675+
7676 goto bad_area;
7677+ }
7678
7679 /*
7680 * If for any reason at all we couldn't handle the fault, make
7681diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
7682index 22b0940..309f790 100644
7683--- a/arch/powerpc/Kconfig
7684+++ b/arch/powerpc/Kconfig
7685@@ -409,6 +409,7 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
7686 config KEXEC
7687 bool "kexec system call"
7688 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
7689+ depends on !GRKERNSEC_KMEM
7690 help
7691 kexec is a system call that implements the ability to shutdown your
7692 current kernel, and to start another kernel. It is like a reboot
7693diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
7694index 512d278..d31fadd 100644
7695--- a/arch/powerpc/include/asm/atomic.h
7696+++ b/arch/powerpc/include/asm/atomic.h
7697@@ -12,6 +12,11 @@
7698
7699 #define ATOMIC_INIT(i) { (i) }
7700
7701+#define _ASM_EXTABLE(from, to) \
7702+" .section __ex_table,\"a\"\n" \
7703+ PPC_LONG" " #from ", " #to"\n" \
7704+" .previous\n"
7705+
7706 static __inline__ int atomic_read(const atomic_t *v)
7707 {
7708 int t;
7709@@ -21,39 +26,80 @@ static __inline__ int atomic_read(const atomic_t *v)
7710 return t;
7711 }
7712
7713+static __inline__ int atomic_read_unchecked(const atomic_unchecked_t *v)
7714+{
7715+ int t;
7716+
7717+ __asm__ __volatile__("lwz%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
7718+
7719+ return t;
7720+}
7721+
7722 static __inline__ void atomic_set(atomic_t *v, int i)
7723 {
7724 __asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7725 }
7726
7727-#define ATOMIC_OP(op, asm_op) \
7728-static __inline__ void atomic_##op(int a, atomic_t *v) \
7729+static __inline__ void atomic_set_unchecked(atomic_unchecked_t *v, int i)
7730+{
7731+ __asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7732+}
7733+
7734+#ifdef CONFIG_PAX_REFCOUNT
7735+#define __REFCOUNT_OP(op) op##o.
7736+#define __OVERFLOW_PRE \
7737+ " mcrxr cr0\n"
7738+#define __OVERFLOW_POST \
7739+ " bf 4*cr0+so, 3f\n" \
7740+ "2: .long 0x00c00b00\n" \
7741+ "3:\n"
7742+#define __OVERFLOW_EXTABLE \
7743+ "\n4:\n"
7744+ _ASM_EXTABLE(2b, 4b)
7745+#else
7746+#define __REFCOUNT_OP(op) op
7747+#define __OVERFLOW_PRE
7748+#define __OVERFLOW_POST
7749+#define __OVERFLOW_EXTABLE
7750+#endif
7751+
7752+#define __ATOMIC_OP(op, suffix, pre_op, asm_op, post_op, extable) \
7753+static inline void atomic_##op##suffix(int a, atomic##suffix##_t *v) \
7754 { \
7755 int t; \
7756 \
7757 __asm__ __volatile__( \
7758-"1: lwarx %0,0,%3 # atomic_" #op "\n" \
7759+"1: lwarx %0,0,%3 # atomic_" #op #suffix "\n" \
7760+ pre_op \
7761 #asm_op " %0,%2,%0\n" \
7762+ post_op \
7763 PPC405_ERR77(0,%3) \
7764 " stwcx. %0,0,%3 \n" \
7765 " bne- 1b\n" \
7766+ extable \
7767 : "=&r" (t), "+m" (v->counter) \
7768 : "r" (a), "r" (&v->counter) \
7769 : "cc"); \
7770 } \
7771
7772-#define ATOMIC_OP_RETURN(op, asm_op) \
7773-static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
7774+#define ATOMIC_OP(op, asm_op) __ATOMIC_OP(op, , , asm_op, , ) \
7775+ __ATOMIC_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
7776+
7777+#define __ATOMIC_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
7778+static inline int atomic_##op##_return##suffix(int a, atomic##suffix##_t *v)\
7779 { \
7780 int t; \
7781 \
7782 __asm__ __volatile__( \
7783 PPC_ATOMIC_ENTRY_BARRIER \
7784-"1: lwarx %0,0,%2 # atomic_" #op "_return\n" \
7785+"1: lwarx %0,0,%2 # atomic_" #op "_return" #suffix "\n" \
7786+ pre_op \
7787 #asm_op " %0,%1,%0\n" \
7788+ post_op \
7789 PPC405_ERR77(0,%2) \
7790 " stwcx. %0,0,%2 \n" \
7791 " bne- 1b\n" \
7792+ extable \
7793 PPC_ATOMIC_EXIT_BARRIER \
7794 : "=&r" (t) \
7795 : "r" (a), "r" (&v->counter) \
7796@@ -62,6 +108,9 @@ static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
7797 return t; \
7798 }
7799
7800+#define ATOMIC_OP_RETURN(op, asm_op) __ATOMIC_OP_RETURN(op, , , asm_op, , )\
7801+ __ATOMIC_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
7802+
7803 #define ATOMIC_OPS(op, asm_op) ATOMIC_OP(op, asm_op) ATOMIC_OP_RETURN(op, asm_op)
7804
7805 ATOMIC_OPS(add, add)
7806@@ -69,42 +118,29 @@ ATOMIC_OPS(sub, subf)
7807
7808 #undef ATOMIC_OPS
7809 #undef ATOMIC_OP_RETURN
7810+#undef __ATOMIC_OP_RETURN
7811 #undef ATOMIC_OP
7812+#undef __ATOMIC_OP
7813
7814 #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
7815
7816-static __inline__ void atomic_inc(atomic_t *v)
7817-{
7818- int t;
7819+/*
7820+ * atomic_inc - increment atomic variable
7821+ * @v: pointer of type atomic_t
7822+ *
7823+ * Automatically increments @v by 1
7824+ */
7825+#define atomic_inc(v) atomic_add(1, (v))
7826+#define atomic_inc_return(v) atomic_add_return(1, (v))
7827
7828- __asm__ __volatile__(
7829-"1: lwarx %0,0,%2 # atomic_inc\n\
7830- addic %0,%0,1\n"
7831- PPC405_ERR77(0,%2)
7832-" stwcx. %0,0,%2 \n\
7833- bne- 1b"
7834- : "=&r" (t), "+m" (v->counter)
7835- : "r" (&v->counter)
7836- : "cc", "xer");
7837+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
7838+{
7839+ atomic_add_unchecked(1, v);
7840 }
7841
7842-static __inline__ int atomic_inc_return(atomic_t *v)
7843+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
7844 {
7845- int t;
7846-
7847- __asm__ __volatile__(
7848- PPC_ATOMIC_ENTRY_BARRIER
7849-"1: lwarx %0,0,%1 # atomic_inc_return\n\
7850- addic %0,%0,1\n"
7851- PPC405_ERR77(0,%1)
7852-" stwcx. %0,0,%1 \n\
7853- bne- 1b"
7854- PPC_ATOMIC_EXIT_BARRIER
7855- : "=&r" (t)
7856- : "r" (&v->counter)
7857- : "cc", "xer", "memory");
7858-
7859- return t;
7860+ return atomic_add_return_unchecked(1, v);
7861 }
7862
7863 /*
7864@@ -117,43 +153,38 @@ static __inline__ int atomic_inc_return(atomic_t *v)
7865 */
7866 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
7867
7868-static __inline__ void atomic_dec(atomic_t *v)
7869+static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
7870 {
7871- int t;
7872-
7873- __asm__ __volatile__(
7874-"1: lwarx %0,0,%2 # atomic_dec\n\
7875- addic %0,%0,-1\n"
7876- PPC405_ERR77(0,%2)\
7877-" stwcx. %0,0,%2\n\
7878- bne- 1b"
7879- : "=&r" (t), "+m" (v->counter)
7880- : "r" (&v->counter)
7881- : "cc", "xer");
7882+ return atomic_add_return_unchecked(1, v) == 0;
7883 }
7884
7885-static __inline__ int atomic_dec_return(atomic_t *v)
7886+/*
7887+ * atomic_dec - decrement atomic variable
7888+ * @v: pointer of type atomic_t
7889+ *
7890+ * Atomically decrements @v by 1
7891+ */
7892+#define atomic_dec(v) atomic_sub(1, (v))
7893+#define atomic_dec_return(v) atomic_sub_return(1, (v))
7894+
7895+static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
7896 {
7897- int t;
7898-
7899- __asm__ __volatile__(
7900- PPC_ATOMIC_ENTRY_BARRIER
7901-"1: lwarx %0,0,%1 # atomic_dec_return\n\
7902- addic %0,%0,-1\n"
7903- PPC405_ERR77(0,%1)
7904-" stwcx. %0,0,%1\n\
7905- bne- 1b"
7906- PPC_ATOMIC_EXIT_BARRIER
7907- : "=&r" (t)
7908- : "r" (&v->counter)
7909- : "cc", "xer", "memory");
7910-
7911- return t;
7912+ atomic_sub_unchecked(1, v);
7913 }
7914
7915 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
7916 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
7917
7918+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
7919+{
7920+ return cmpxchg(&(v->counter), old, new);
7921+}
7922+
7923+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
7924+{
7925+ return xchg(&(v->counter), new);
7926+}
7927+
7928 /**
7929 * __atomic_add_unless - add unless the number is a given value
7930 * @v: pointer of type atomic_t
7931@@ -171,11 +202,27 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
7932 PPC_ATOMIC_ENTRY_BARRIER
7933 "1: lwarx %0,0,%1 # __atomic_add_unless\n\
7934 cmpw 0,%0,%3 \n\
7935- beq- 2f \n\
7936- add %0,%2,%0 \n"
7937+ beq- 2f \n"
7938+
7939+#ifdef CONFIG_PAX_REFCOUNT
7940+" mcrxr cr0\n"
7941+" addo. %0,%2,%0\n"
7942+" bf 4*cr0+so, 4f\n"
7943+"3:.long " "0x00c00b00""\n"
7944+"4:\n"
7945+#else
7946+ "add %0,%2,%0 \n"
7947+#endif
7948+
7949 PPC405_ERR77(0,%2)
7950 " stwcx. %0,0,%1 \n\
7951 bne- 1b \n"
7952+"5:"
7953+
7954+#ifdef CONFIG_PAX_REFCOUNT
7955+ _ASM_EXTABLE(3b, 5b)
7956+#endif
7957+
7958 PPC_ATOMIC_EXIT_BARRIER
7959 " subf %0,%2,%0 \n\
7960 2:"
7961@@ -248,6 +295,11 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
7962 }
7963 #define atomic_dec_if_positive atomic_dec_if_positive
7964
7965+#define smp_mb__before_atomic_dec() smp_mb()
7966+#define smp_mb__after_atomic_dec() smp_mb()
7967+#define smp_mb__before_atomic_inc() smp_mb()
7968+#define smp_mb__after_atomic_inc() smp_mb()
7969+
7970 #ifdef __powerpc64__
7971
7972 #define ATOMIC64_INIT(i) { (i) }
7973@@ -261,37 +313,60 @@ static __inline__ long atomic64_read(const atomic64_t *v)
7974 return t;
7975 }
7976
7977+static __inline__ long atomic64_read_unchecked(const atomic64_unchecked_t *v)
7978+{
7979+ long t;
7980+
7981+ __asm__ __volatile__("ld%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
7982+
7983+ return t;
7984+}
7985+
7986 static __inline__ void atomic64_set(atomic64_t *v, long i)
7987 {
7988 __asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7989 }
7990
7991-#define ATOMIC64_OP(op, asm_op) \
7992-static __inline__ void atomic64_##op(long a, atomic64_t *v) \
7993+static __inline__ void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
7994+{
7995+ __asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7996+}
7997+
7998+#define __ATOMIC64_OP(op, suffix, pre_op, asm_op, post_op, extable) \
7999+static inline void atomic64_##op##suffix(long a, atomic64##suffix##_t *v)\
8000 { \
8001 long t; \
8002 \
8003 __asm__ __volatile__( \
8004 "1: ldarx %0,0,%3 # atomic64_" #op "\n" \
8005+ pre_op \
8006 #asm_op " %0,%2,%0\n" \
8007+ post_op \
8008 " stdcx. %0,0,%3 \n" \
8009 " bne- 1b\n" \
8010+ extable \
8011 : "=&r" (t), "+m" (v->counter) \
8012 : "r" (a), "r" (&v->counter) \
8013 : "cc"); \
8014 }
8015
8016-#define ATOMIC64_OP_RETURN(op, asm_op) \
8017-static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
8018+#define ATOMIC64_OP(op, asm_op) __ATOMIC64_OP(op, , , asm_op, , ) \
8019+ __ATOMIC64_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
8020+
8021+#define __ATOMIC64_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
8022+static inline long atomic64_##op##_return##suffix(long a, atomic64##suffix##_t *v)\
8023 { \
8024 long t; \
8025 \
8026 __asm__ __volatile__( \
8027 PPC_ATOMIC_ENTRY_BARRIER \
8028 "1: ldarx %0,0,%2 # atomic64_" #op "_return\n" \
8029+ pre_op \
8030 #asm_op " %0,%1,%0\n" \
8031+ post_op \
8032 " stdcx. %0,0,%2 \n" \
8033 " bne- 1b\n" \
8034+ extable \
8035 PPC_ATOMIC_EXIT_BARRIER \
8036 : "=&r" (t) \
8037 : "r" (a), "r" (&v->counter) \
8038@@ -300,6 +375,9 @@ static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
8039 return t; \
8040 }
8041
8042+#define ATOMIC64_OP_RETURN(op, asm_op) __ATOMIC64_OP_RETURN(op, , , asm_op, , )\
8043+ __ATOMIC64_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
8044+
8045 #define ATOMIC64_OPS(op, asm_op) ATOMIC64_OP(op, asm_op) ATOMIC64_OP_RETURN(op, asm_op)
8046
8047 ATOMIC64_OPS(add, add)
8048@@ -307,40 +385,33 @@ ATOMIC64_OPS(sub, subf)
8049
8050 #undef ATOMIC64_OPS
8051 #undef ATOMIC64_OP_RETURN
8052+#undef __ATOMIC64_OP_RETURN
8053 #undef ATOMIC64_OP
8054+#undef __ATOMIC64_OP
8055+#undef __OVERFLOW_EXTABLE
8056+#undef __OVERFLOW_POST
8057+#undef __OVERFLOW_PRE
8058+#undef __REFCOUNT_OP
8059
8060 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
8061
8062-static __inline__ void atomic64_inc(atomic64_t *v)
8063-{
8064- long t;
8065+/*
8066+ * atomic64_inc - increment atomic variable
8067+ * @v: pointer of type atomic64_t
8068+ *
8069+ * Automatically increments @v by 1
8070+ */
8071+#define atomic64_inc(v) atomic64_add(1, (v))
8072+#define atomic64_inc_return(v) atomic64_add_return(1, (v))
8073
8074- __asm__ __volatile__(
8075-"1: ldarx %0,0,%2 # atomic64_inc\n\
8076- addic %0,%0,1\n\
8077- stdcx. %0,0,%2 \n\
8078- bne- 1b"
8079- : "=&r" (t), "+m" (v->counter)
8080- : "r" (&v->counter)
8081- : "cc", "xer");
8082+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
8083+{
8084+ atomic64_add_unchecked(1, v);
8085 }
8086
8087-static __inline__ long atomic64_inc_return(atomic64_t *v)
8088+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
8089 {
8090- long t;
8091-
8092- __asm__ __volatile__(
8093- PPC_ATOMIC_ENTRY_BARRIER
8094-"1: ldarx %0,0,%1 # atomic64_inc_return\n\
8095- addic %0,%0,1\n\
8096- stdcx. %0,0,%1 \n\
8097- bne- 1b"
8098- PPC_ATOMIC_EXIT_BARRIER
8099- : "=&r" (t)
8100- : "r" (&v->counter)
8101- : "cc", "xer", "memory");
8102-
8103- return t;
8104+ return atomic64_add_return_unchecked(1, v);
8105 }
8106
8107 /*
8108@@ -353,36 +424,18 @@ static __inline__ long atomic64_inc_return(atomic64_t *v)
8109 */
8110 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
8111
8112-static __inline__ void atomic64_dec(atomic64_t *v)
8113+/*
8114+ * atomic64_dec - decrement atomic variable
8115+ * @v: pointer of type atomic64_t
8116+ *
8117+ * Atomically decrements @v by 1
8118+ */
8119+#define atomic64_dec(v) atomic64_sub(1, (v))
8120+#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
8121+
8122+static __inline__ void atomic64_dec_unchecked(atomic64_unchecked_t *v)
8123 {
8124- long t;
8125-
8126- __asm__ __volatile__(
8127-"1: ldarx %0,0,%2 # atomic64_dec\n\
8128- addic %0,%0,-1\n\
8129- stdcx. %0,0,%2\n\
8130- bne- 1b"
8131- : "=&r" (t), "+m" (v->counter)
8132- : "r" (&v->counter)
8133- : "cc", "xer");
8134-}
8135-
8136-static __inline__ long atomic64_dec_return(atomic64_t *v)
8137-{
8138- long t;
8139-
8140- __asm__ __volatile__(
8141- PPC_ATOMIC_ENTRY_BARRIER
8142-"1: ldarx %0,0,%1 # atomic64_dec_return\n\
8143- addic %0,%0,-1\n\
8144- stdcx. %0,0,%1\n\
8145- bne- 1b"
8146- PPC_ATOMIC_EXIT_BARRIER
8147- : "=&r" (t)
8148- : "r" (&v->counter)
8149- : "cc", "xer", "memory");
8150-
8151- return t;
8152+ atomic64_sub_unchecked(1, v);
8153 }
8154
8155 #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
8156@@ -415,6 +468,16 @@ static __inline__ long atomic64_dec_if_positive(atomic64_t *v)
8157 #define atomic64_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
8158 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
8159
8160+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
8161+{
8162+ return cmpxchg(&(v->counter), old, new);
8163+}
8164+
8165+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
8166+{
8167+ return xchg(&(v->counter), new);
8168+}
8169+
8170 /**
8171 * atomic64_add_unless - add unless the number is a given value
8172 * @v: pointer of type atomic64_t
8173@@ -430,13 +493,29 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
8174
8175 __asm__ __volatile__ (
8176 PPC_ATOMIC_ENTRY_BARRIER
8177-"1: ldarx %0,0,%1 # __atomic_add_unless\n\
8178+"1: ldarx %0,0,%1 # atomic64_add_unless\n\
8179 cmpd 0,%0,%3 \n\
8180- beq- 2f \n\
8181- add %0,%2,%0 \n"
8182+ beq- 2f \n"
8183+
8184+#ifdef CONFIG_PAX_REFCOUNT
8185+" mcrxr cr0\n"
8186+" addo. %0,%2,%0\n"
8187+" bf 4*cr0+so, 4f\n"
8188+"3:.long " "0x00c00b00""\n"
8189+"4:\n"
8190+#else
8191+ "add %0,%2,%0 \n"
8192+#endif
8193+
8194 " stdcx. %0,0,%1 \n\
8195 bne- 1b \n"
8196 PPC_ATOMIC_EXIT_BARRIER
8197+"5:"
8198+
8199+#ifdef CONFIG_PAX_REFCOUNT
8200+ _ASM_EXTABLE(3b, 5b)
8201+#endif
8202+
8203 " subf %0,%2,%0 \n\
8204 2:"
8205 : "=&r" (t)
8206diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
8207index a3bf5be..e03ba81 100644
8208--- a/arch/powerpc/include/asm/barrier.h
8209+++ b/arch/powerpc/include/asm/barrier.h
8210@@ -76,7 +76,7 @@
8211 do { \
8212 compiletime_assert_atomic_type(*p); \
8213 smp_lwsync(); \
8214- ACCESS_ONCE(*p) = (v); \
8215+ ACCESS_ONCE_RW(*p) = (v); \
8216 } while (0)
8217
8218 #define smp_load_acquire(p) \
8219diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
8220index 34a05a1..a1f2c67 100644
8221--- a/arch/powerpc/include/asm/cache.h
8222+++ b/arch/powerpc/include/asm/cache.h
8223@@ -4,6 +4,7 @@
8224 #ifdef __KERNEL__
8225
8226 #include <asm/reg.h>
8227+#include <linux/const.h>
8228
8229 /* bytes per L1 cache line */
8230 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
8231@@ -23,7 +24,7 @@
8232 #define L1_CACHE_SHIFT 7
8233 #endif
8234
8235-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
8236+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
8237
8238 #define SMP_CACHE_BYTES L1_CACHE_BYTES
8239
8240diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
8241index 57d289a..b36c98c 100644
8242--- a/arch/powerpc/include/asm/elf.h
8243+++ b/arch/powerpc/include/asm/elf.h
8244@@ -30,6 +30,18 @@
8245
8246 #define ELF_ET_DYN_BASE 0x20000000
8247
8248+#ifdef CONFIG_PAX_ASLR
8249+#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
8250+
8251+#ifdef __powerpc64__
8252+#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28)
8253+#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28)
8254+#else
8255+#define PAX_DELTA_MMAP_LEN 15
8256+#define PAX_DELTA_STACK_LEN 15
8257+#endif
8258+#endif
8259+
8260 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
8261
8262 /*
8263@@ -128,10 +140,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
8264 (0x7ff >> (PAGE_SHIFT - 12)) : \
8265 (0x3ffff >> (PAGE_SHIFT - 12)))
8266
8267-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
8268-#define arch_randomize_brk arch_randomize_brk
8269-
8270-
8271 #ifdef CONFIG_SPU_BASE
8272 /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */
8273 #define NT_SPU 1
8274diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
8275index 8196e9c..d83a9f3 100644
8276--- a/arch/powerpc/include/asm/exec.h
8277+++ b/arch/powerpc/include/asm/exec.h
8278@@ -4,6 +4,6 @@
8279 #ifndef _ASM_POWERPC_EXEC_H
8280 #define _ASM_POWERPC_EXEC_H
8281
8282-extern unsigned long arch_align_stack(unsigned long sp);
8283+#define arch_align_stack(x) ((x) & ~0xfUL)
8284
8285 #endif /* _ASM_POWERPC_EXEC_H */
8286diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
8287index 5acabbd..7ea14fa 100644
8288--- a/arch/powerpc/include/asm/kmap_types.h
8289+++ b/arch/powerpc/include/asm/kmap_types.h
8290@@ -10,7 +10,7 @@
8291 * 2 of the License, or (at your option) any later version.
8292 */
8293
8294-#define KM_TYPE_NR 16
8295+#define KM_TYPE_NR 17
8296
8297 #endif /* __KERNEL__ */
8298 #endif /* _ASM_POWERPC_KMAP_TYPES_H */
8299diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
8300index b8da913..c02b593 100644
8301--- a/arch/powerpc/include/asm/local.h
8302+++ b/arch/powerpc/include/asm/local.h
8303@@ -9,21 +9,65 @@ typedef struct
8304 atomic_long_t a;
8305 } local_t;
8306
8307+typedef struct
8308+{
8309+ atomic_long_unchecked_t a;
8310+} local_unchecked_t;
8311+
8312 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
8313
8314 #define local_read(l) atomic_long_read(&(l)->a)
8315+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
8316 #define local_set(l,i) atomic_long_set(&(l)->a, (i))
8317+#define local_set_unchecked(l,i) atomic_long_set_unchecked(&(l)->a, (i))
8318
8319 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
8320+#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
8321 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
8322+#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
8323 #define local_inc(l) atomic_long_inc(&(l)->a)
8324+#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
8325 #define local_dec(l) atomic_long_dec(&(l)->a)
8326+#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
8327
8328 static __inline__ long local_add_return(long a, local_t *l)
8329 {
8330 long t;
8331
8332 __asm__ __volatile__(
8333+"1:" PPC_LLARX(%0,0,%2,0) " # local_add_return\n"
8334+
8335+#ifdef CONFIG_PAX_REFCOUNT
8336+" mcrxr cr0\n"
8337+" addo. %0,%1,%0\n"
8338+" bf 4*cr0+so, 3f\n"
8339+"2:.long " "0x00c00b00""\n"
8340+#else
8341+" add %0,%1,%0\n"
8342+#endif
8343+
8344+"3:\n"
8345+ PPC405_ERR77(0,%2)
8346+ PPC_STLCX "%0,0,%2 \n\
8347+ bne- 1b"
8348+
8349+#ifdef CONFIG_PAX_REFCOUNT
8350+"\n4:\n"
8351+ _ASM_EXTABLE(2b, 4b)
8352+#endif
8353+
8354+ : "=&r" (t)
8355+ : "r" (a), "r" (&(l->a.counter))
8356+ : "cc", "memory");
8357+
8358+ return t;
8359+}
8360+
8361+static __inline__ long local_add_return_unchecked(long a, local_unchecked_t *l)
8362+{
8363+ long t;
8364+
8365+ __asm__ __volatile__(
8366 "1:" PPC_LLARX(%0,0,%2,0) " # local_add_return\n\
8367 add %0,%1,%0\n"
8368 PPC405_ERR77(0,%2)
8369@@ -101,6 +145,8 @@ static __inline__ long local_dec_return(local_t *l)
8370
8371 #define local_cmpxchg(l, o, n) \
8372 (cmpxchg_local(&((l)->a.counter), (o), (n)))
8373+#define local_cmpxchg_unchecked(l, o, n) \
8374+ (cmpxchg_local(&((l)->a.counter), (o), (n)))
8375 #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
8376
8377 /**
8378diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
8379index 8565c25..2865190 100644
8380--- a/arch/powerpc/include/asm/mman.h
8381+++ b/arch/powerpc/include/asm/mman.h
8382@@ -24,7 +24,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
8383 }
8384 #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
8385
8386-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
8387+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
8388 {
8389 return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
8390 }
8391diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
8392index 69c0598..2c56964 100644
8393--- a/arch/powerpc/include/asm/page.h
8394+++ b/arch/powerpc/include/asm/page.h
8395@@ -227,8 +227,9 @@ extern long long virt_phys_offset;
8396 * and needs to be executable. This means the whole heap ends
8397 * up being executable.
8398 */
8399-#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8400- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8401+#define VM_DATA_DEFAULT_FLAGS32 \
8402+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8403+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8404
8405 #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8406 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8407@@ -256,6 +257,9 @@ extern long long virt_phys_offset;
8408 #define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
8409 #endif
8410
8411+#define ktla_ktva(addr) (addr)
8412+#define ktva_ktla(addr) (addr)
8413+
8414 #ifndef CONFIG_PPC_BOOK3S_64
8415 /*
8416 * Use the top bit of the higher-level page table entries to indicate whether
8417diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
8418index d908a46..3753f71 100644
8419--- a/arch/powerpc/include/asm/page_64.h
8420+++ b/arch/powerpc/include/asm/page_64.h
8421@@ -172,15 +172,18 @@ do { \
8422 * stack by default, so in the absence of a PT_GNU_STACK program header
8423 * we turn execute permission off.
8424 */
8425-#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8426- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8427+#define VM_STACK_DEFAULT_FLAGS32 \
8428+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8429+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8430
8431 #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8432 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8433
8434+#ifndef CONFIG_PAX_PAGEEXEC
8435 #define VM_STACK_DEFAULT_FLAGS \
8436 (is_32bit_task() ? \
8437 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
8438+#endif
8439
8440 #include <asm-generic/getorder.h>
8441
8442diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
8443index 4b0be20..c15a27d 100644
8444--- a/arch/powerpc/include/asm/pgalloc-64.h
8445+++ b/arch/powerpc/include/asm/pgalloc-64.h
8446@@ -54,6 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
8447 #ifndef CONFIG_PPC_64K_PAGES
8448
8449 #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD)
8450+#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD))
8451
8452 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
8453 {
8454@@ -71,6 +72,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8455 pud_set(pud, (unsigned long)pmd);
8456 }
8457
8458+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8459+{
8460+ pud_populate(mm, pud, pmd);
8461+}
8462+
8463 #define pmd_populate(mm, pmd, pte_page) \
8464 pmd_populate_kernel(mm, pmd, page_address(pte_page))
8465 #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
8466@@ -173,6 +179,7 @@ extern void __tlb_remove_table(void *_table);
8467 #endif
8468
8469 #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd)
8470+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
8471
8472 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
8473 pte_t *pte)
8474diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
8475index 9835ac4..900430f 100644
8476--- a/arch/powerpc/include/asm/pgtable.h
8477+++ b/arch/powerpc/include/asm/pgtable.h
8478@@ -2,6 +2,7 @@
8479 #define _ASM_POWERPC_PGTABLE_H
8480 #ifdef __KERNEL__
8481
8482+#include <linux/const.h>
8483 #ifndef __ASSEMBLY__
8484 #include <linux/mmdebug.h>
8485 #include <linux/mmzone.h>
8486diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
8487index 62cfb0c..50c6402 100644
8488--- a/arch/powerpc/include/asm/pte-hash32.h
8489+++ b/arch/powerpc/include/asm/pte-hash32.h
8490@@ -20,6 +20,7 @@
8491 #define _PAGE_HASHPTE 0x002 /* hash_page has made an HPTE for this pte */
8492 #define _PAGE_USER 0x004 /* usermode access allowed */
8493 #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */
8494+#define _PAGE_EXEC _PAGE_GUARDED
8495 #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */
8496 #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */
8497 #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */
8498diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
8499index af56b5c..f86f3f6 100644
8500--- a/arch/powerpc/include/asm/reg.h
8501+++ b/arch/powerpc/include/asm/reg.h
8502@@ -253,6 +253,7 @@
8503 #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
8504 #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */
8505 #define DSISR_NOHPTE 0x40000000 /* no translation found */
8506+#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */
8507 #define DSISR_PROTFAULT 0x08000000 /* protection fault */
8508 #define DSISR_ISSTORE 0x02000000 /* access was a store */
8509 #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
8510diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
8511index d607df5..08dc9ae 100644
8512--- a/arch/powerpc/include/asm/smp.h
8513+++ b/arch/powerpc/include/asm/smp.h
8514@@ -51,7 +51,7 @@ struct smp_ops_t {
8515 int (*cpu_disable)(void);
8516 void (*cpu_die)(unsigned int nr);
8517 int (*cpu_bootable)(unsigned int nr);
8518-};
8519+} __no_const;
8520
8521 extern void smp_send_debugger_break(void);
8522 extern void start_secondary_resume(void);
8523diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
8524index 4dbe072..b803275 100644
8525--- a/arch/powerpc/include/asm/spinlock.h
8526+++ b/arch/powerpc/include/asm/spinlock.h
8527@@ -204,13 +204,29 @@ static inline long __arch_read_trylock(arch_rwlock_t *rw)
8528 __asm__ __volatile__(
8529 "1: " PPC_LWARX(%0,0,%1,1) "\n"
8530 __DO_SIGN_EXTEND
8531-" addic. %0,%0,1\n\
8532- ble- 2f\n"
8533+
8534+#ifdef CONFIG_PAX_REFCOUNT
8535+" mcrxr cr0\n"
8536+" addico. %0,%0,1\n"
8537+" bf 4*cr0+so, 3f\n"
8538+"2:.long " "0x00c00b00""\n"
8539+#else
8540+" addic. %0,%0,1\n"
8541+#endif
8542+
8543+"3:\n"
8544+ "ble- 4f\n"
8545 PPC405_ERR77(0,%1)
8546 " stwcx. %0,0,%1\n\
8547 bne- 1b\n"
8548 PPC_ACQUIRE_BARRIER
8549-"2:" : "=&r" (tmp)
8550+"4:"
8551+
8552+#ifdef CONFIG_PAX_REFCOUNT
8553+ _ASM_EXTABLE(2b,4b)
8554+#endif
8555+
8556+ : "=&r" (tmp)
8557 : "r" (&rw->lock)
8558 : "cr0", "xer", "memory");
8559
8560@@ -286,11 +302,27 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
8561 __asm__ __volatile__(
8562 "# read_unlock\n\t"
8563 PPC_RELEASE_BARRIER
8564-"1: lwarx %0,0,%1\n\
8565- addic %0,%0,-1\n"
8566+"1: lwarx %0,0,%1\n"
8567+
8568+#ifdef CONFIG_PAX_REFCOUNT
8569+" mcrxr cr0\n"
8570+" addico. %0,%0,-1\n"
8571+" bf 4*cr0+so, 3f\n"
8572+"2:.long " "0x00c00b00""\n"
8573+#else
8574+" addic. %0,%0,-1\n"
8575+#endif
8576+
8577+"3:\n"
8578 PPC405_ERR77(0,%1)
8579 " stwcx. %0,0,%1\n\
8580 bne- 1b"
8581+
8582+#ifdef CONFIG_PAX_REFCOUNT
8583+"\n4:\n"
8584+ _ASM_EXTABLE(2b, 4b)
8585+#endif
8586+
8587 : "=&r"(tmp)
8588 : "r"(&rw->lock)
8589 : "cr0", "xer", "memory");
8590diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
8591index 7248979..80b75de 100644
8592--- a/arch/powerpc/include/asm/thread_info.h
8593+++ b/arch/powerpc/include/asm/thread_info.h
8594@@ -103,6 +103,8 @@ static inline struct thread_info *current_thread_info(void)
8595 #if defined(CONFIG_PPC64)
8596 #define TIF_ELF2ABI 18 /* function descriptors must die! */
8597 #endif
8598+/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
8599+#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
8600
8601 /* as above, but as bit values */
8602 #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
8603@@ -121,9 +123,10 @@ static inline struct thread_info *current_thread_info(void)
8604 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
8605 #define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE)
8606 #define _TIF_NOHZ (1<<TIF_NOHZ)
8607+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
8608 #define _TIF_SYSCALL_DOTRACE (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
8609 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
8610- _TIF_NOHZ)
8611+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
8612
8613 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
8614 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
8615diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
8616index a0c071d..49cdc7f 100644
8617--- a/arch/powerpc/include/asm/uaccess.h
8618+++ b/arch/powerpc/include/asm/uaccess.h
8619@@ -58,6 +58,7 @@
8620
8621 #endif
8622
8623+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
8624 #define access_ok(type, addr, size) \
8625 (__chk_user_ptr(addr), \
8626 __access_ok((__force unsigned long)(addr), (size), get_fs()))
8627@@ -318,52 +319,6 @@ do { \
8628 extern unsigned long __copy_tofrom_user(void __user *to,
8629 const void __user *from, unsigned long size);
8630
8631-#ifndef __powerpc64__
8632-
8633-static inline unsigned long copy_from_user(void *to,
8634- const void __user *from, unsigned long n)
8635-{
8636- unsigned long over;
8637-
8638- if (access_ok(VERIFY_READ, from, n))
8639- return __copy_tofrom_user((__force void __user *)to, from, n);
8640- if ((unsigned long)from < TASK_SIZE) {
8641- over = (unsigned long)from + n - TASK_SIZE;
8642- return __copy_tofrom_user((__force void __user *)to, from,
8643- n - over) + over;
8644- }
8645- return n;
8646-}
8647-
8648-static inline unsigned long copy_to_user(void __user *to,
8649- const void *from, unsigned long n)
8650-{
8651- unsigned long over;
8652-
8653- if (access_ok(VERIFY_WRITE, to, n))
8654- return __copy_tofrom_user(to, (__force void __user *)from, n);
8655- if ((unsigned long)to < TASK_SIZE) {
8656- over = (unsigned long)to + n - TASK_SIZE;
8657- return __copy_tofrom_user(to, (__force void __user *)from,
8658- n - over) + over;
8659- }
8660- return n;
8661-}
8662-
8663-#else /* __powerpc64__ */
8664-
8665-#define __copy_in_user(to, from, size) \
8666- __copy_tofrom_user((to), (from), (size))
8667-
8668-extern unsigned long copy_from_user(void *to, const void __user *from,
8669- unsigned long n);
8670-extern unsigned long copy_to_user(void __user *to, const void *from,
8671- unsigned long n);
8672-extern unsigned long copy_in_user(void __user *to, const void __user *from,
8673- unsigned long n);
8674-
8675-#endif /* __powerpc64__ */
8676-
8677 static inline unsigned long __copy_from_user_inatomic(void *to,
8678 const void __user *from, unsigned long n)
8679 {
8680@@ -387,6 +342,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
8681 if (ret == 0)
8682 return 0;
8683 }
8684+
8685+ if (!__builtin_constant_p(n))
8686+ check_object_size(to, n, false);
8687+
8688 return __copy_tofrom_user((__force void __user *)to, from, n);
8689 }
8690
8691@@ -413,6 +372,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
8692 if (ret == 0)
8693 return 0;
8694 }
8695+
8696+ if (!__builtin_constant_p(n))
8697+ check_object_size(from, n, true);
8698+
8699 return __copy_tofrom_user(to, (__force const void __user *)from, n);
8700 }
8701
8702@@ -430,6 +393,92 @@ static inline unsigned long __copy_to_user(void __user *to,
8703 return __copy_to_user_inatomic(to, from, size);
8704 }
8705
8706+#ifndef __powerpc64__
8707+
8708+static inline unsigned long __must_check copy_from_user(void *to,
8709+ const void __user *from, unsigned long n)
8710+{
8711+ unsigned long over;
8712+
8713+ if ((long)n < 0)
8714+ return n;
8715+
8716+ if (access_ok(VERIFY_READ, from, n)) {
8717+ if (!__builtin_constant_p(n))
8718+ check_object_size(to, n, false);
8719+ return __copy_tofrom_user((__force void __user *)to, from, n);
8720+ }
8721+ if ((unsigned long)from < TASK_SIZE) {
8722+ over = (unsigned long)from + n - TASK_SIZE;
8723+ if (!__builtin_constant_p(n - over))
8724+ check_object_size(to, n - over, false);
8725+ return __copy_tofrom_user((__force void __user *)to, from,
8726+ n - over) + over;
8727+ }
8728+ return n;
8729+}
8730+
8731+static inline unsigned long __must_check copy_to_user(void __user *to,
8732+ const void *from, unsigned long n)
8733+{
8734+ unsigned long over;
8735+
8736+ if ((long)n < 0)
8737+ return n;
8738+
8739+ if (access_ok(VERIFY_WRITE, to, n)) {
8740+ if (!__builtin_constant_p(n))
8741+ check_object_size(from, n, true);
8742+ return __copy_tofrom_user(to, (__force void __user *)from, n);
8743+ }
8744+ if ((unsigned long)to < TASK_SIZE) {
8745+ over = (unsigned long)to + n - TASK_SIZE;
8746+ if (!__builtin_constant_p(n))
8747+ check_object_size(from, n - over, true);
8748+ return __copy_tofrom_user(to, (__force void __user *)from,
8749+ n - over) + over;
8750+ }
8751+ return n;
8752+}
8753+
8754+#else /* __powerpc64__ */
8755+
8756+#define __copy_in_user(to, from, size) \
8757+ __copy_tofrom_user((to), (from), (size))
8758+
8759+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
8760+{
8761+ if ((long)n < 0 || n > INT_MAX)
8762+ return n;
8763+
8764+ if (!__builtin_constant_p(n))
8765+ check_object_size(to, n, false);
8766+
8767+ if (likely(access_ok(VERIFY_READ, from, n)))
8768+ n = __copy_from_user(to, from, n);
8769+ else
8770+ memset(to, 0, n);
8771+ return n;
8772+}
8773+
8774+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
8775+{
8776+ if ((long)n < 0 || n > INT_MAX)
8777+ return n;
8778+
8779+ if (likely(access_ok(VERIFY_WRITE, to, n))) {
8780+ if (!__builtin_constant_p(n))
8781+ check_object_size(from, n, true);
8782+ n = __copy_to_user(to, from, n);
8783+ }
8784+ return n;
8785+}
8786+
8787+extern unsigned long copy_in_user(void __user *to, const void __user *from,
8788+ unsigned long n);
8789+
8790+#endif /* __powerpc64__ */
8791+
8792 extern unsigned long __clear_user(void __user *addr, unsigned long size);
8793
8794 static inline unsigned long clear_user(void __user *addr, unsigned long size)
8795diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
8796index 502cf69..53936a1 100644
8797--- a/arch/powerpc/kernel/Makefile
8798+++ b/arch/powerpc/kernel/Makefile
8799@@ -15,6 +15,11 @@ CFLAGS_prom_init.o += -fPIC
8800 CFLAGS_btext.o += -fPIC
8801 endif
8802
8803+CFLAGS_REMOVE_cputable.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8804+CFLAGS_REMOVE_prom_init.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8805+CFLAGS_REMOVE_btext.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8806+CFLAGS_REMOVE_prom.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8807+
8808 ifdef CONFIG_FUNCTION_TRACER
8809 # Do not trace early boot code
8810 CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
8811@@ -27,6 +32,8 @@ CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
8812 CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
8813 endif
8814
8815+CFLAGS_REMOVE_prom_init.o += $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8816+
8817 obj-y := cputable.o ptrace.o syscalls.o \
8818 irq.o align.o signal_32.o pmc.o vdso.o \
8819 process.o systbl.o idle.o \
8820diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
8821index 3e68d1c..72a5ee6 100644
8822--- a/arch/powerpc/kernel/exceptions-64e.S
8823+++ b/arch/powerpc/kernel/exceptions-64e.S
8824@@ -1010,6 +1010,7 @@ storage_fault_common:
8825 std r14,_DAR(r1)
8826 std r15,_DSISR(r1)
8827 addi r3,r1,STACK_FRAME_OVERHEAD
8828+ bl save_nvgprs
8829 mr r4,r14
8830 mr r5,r15
8831 ld r14,PACA_EXGEN+EX_R14(r13)
8832@@ -1018,8 +1019,7 @@ storage_fault_common:
8833 cmpdi r3,0
8834 bne- 1f
8835 b ret_from_except_lite
8836-1: bl save_nvgprs
8837- mr r5,r3
8838+1: mr r5,r3
8839 addi r3,r1,STACK_FRAME_OVERHEAD
8840 ld r4,_DAR(r1)
8841 bl bad_page_fault
8842diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
8843index 9519e6b..13f6c38 100644
8844--- a/arch/powerpc/kernel/exceptions-64s.S
8845+++ b/arch/powerpc/kernel/exceptions-64s.S
8846@@ -1599,10 +1599,10 @@ handle_page_fault:
8847 11: ld r4,_DAR(r1)
8848 ld r5,_DSISR(r1)
8849 addi r3,r1,STACK_FRAME_OVERHEAD
8850+ bl save_nvgprs
8851 bl do_page_fault
8852 cmpdi r3,0
8853 beq+ 12f
8854- bl save_nvgprs
8855 mr r5,r3
8856 addi r3,r1,STACK_FRAME_OVERHEAD
8857 lwz r4,_DAR(r1)
8858diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
8859index 4509603..cdb491f 100644
8860--- a/arch/powerpc/kernel/irq.c
8861+++ b/arch/powerpc/kernel/irq.c
8862@@ -460,6 +460,8 @@ void migrate_irqs(void)
8863 }
8864 #endif
8865
8866+extern void gr_handle_kernel_exploit(void);
8867+
8868 static inline void check_stack_overflow(void)
8869 {
8870 #ifdef CONFIG_DEBUG_STACKOVERFLOW
8871@@ -472,6 +474,7 @@ static inline void check_stack_overflow(void)
8872 pr_err("do_IRQ: stack overflow: %ld\n",
8873 sp - sizeof(struct thread_info));
8874 dump_stack();
8875+ gr_handle_kernel_exploit();
8876 }
8877 #endif
8878 }
8879diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
8880index c94d2e0..992a9ce 100644
8881--- a/arch/powerpc/kernel/module_32.c
8882+++ b/arch/powerpc/kernel/module_32.c
8883@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
8884 me->arch.core_plt_section = i;
8885 }
8886 if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
8887- pr_err("Module doesn't contain .plt or .init.plt sections.\n");
8888+ pr_err("Module $s doesn't contain .plt or .init.plt sections.\n", me->name);
8889 return -ENOEXEC;
8890 }
8891
8892@@ -188,11 +188,16 @@ static uint32_t do_plt_call(void *location,
8893
8894 pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
8895 /* Init, or core PLT? */
8896- if (location >= mod->module_core
8897- && location < mod->module_core + mod->core_size)
8898+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
8899+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
8900 entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
8901- else
8902+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
8903+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
8904 entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
8905+ else {
8906+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
8907+ return ~0UL;
8908+ }
8909
8910 /* Find this entry, or if that fails, the next avail. entry */
8911 while (entry->jump[0]) {
8912@@ -296,7 +301,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
8913 }
8914 #ifdef CONFIG_DYNAMIC_FTRACE
8915 module->arch.tramp =
8916- do_plt_call(module->module_core,
8917+ do_plt_call(module->module_core_rx,
8918 (unsigned long)ftrace_caller,
8919 sechdrs, module);
8920 #endif
8921diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
8922index b4cc7be..1fe8bb3 100644
8923--- a/arch/powerpc/kernel/process.c
8924+++ b/arch/powerpc/kernel/process.c
8925@@ -1036,8 +1036,8 @@ void show_regs(struct pt_regs * regs)
8926 * Lookup NIP late so we have the best change of getting the
8927 * above info out without failing
8928 */
8929- printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
8930- printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
8931+ printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
8932+ printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
8933 #endif
8934 show_stack(current, (unsigned long *) regs->gpr[1]);
8935 if (!user_mode(regs))
8936@@ -1549,10 +1549,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8937 newsp = stack[0];
8938 ip = stack[STACK_FRAME_LR_SAVE];
8939 if (!firstframe || ip != lr) {
8940- printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
8941+ printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
8942 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
8943 if ((ip == rth) && curr_frame >= 0) {
8944- printk(" (%pS)",
8945+ printk(" (%pA)",
8946 (void *)current->ret_stack[curr_frame].ret);
8947 curr_frame--;
8948 }
8949@@ -1572,7 +1572,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8950 struct pt_regs *regs = (struct pt_regs *)
8951 (sp + STACK_FRAME_OVERHEAD);
8952 lr = regs->link;
8953- printk("--- interrupt: %lx at %pS\n LR = %pS\n",
8954+ printk("--- interrupt: %lx at %pA\n LR = %pA\n",
8955 regs->trap, (void *)regs->nip, (void *)lr);
8956 firstframe = 1;
8957 }
8958@@ -1608,49 +1608,3 @@ void notrace __ppc64_runlatch_off(void)
8959 mtspr(SPRN_CTRLT, ctrl);
8960 }
8961 #endif /* CONFIG_PPC64 */
8962-
8963-unsigned long arch_align_stack(unsigned long sp)
8964-{
8965- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
8966- sp -= get_random_int() & ~PAGE_MASK;
8967- return sp & ~0xf;
8968-}
8969-
8970-static inline unsigned long brk_rnd(void)
8971-{
8972- unsigned long rnd = 0;
8973-
8974- /* 8MB for 32bit, 1GB for 64bit */
8975- if (is_32bit_task())
8976- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
8977- else
8978- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
8979-
8980- return rnd << PAGE_SHIFT;
8981-}
8982-
8983-unsigned long arch_randomize_brk(struct mm_struct *mm)
8984-{
8985- unsigned long base = mm->brk;
8986- unsigned long ret;
8987-
8988-#ifdef CONFIG_PPC_STD_MMU_64
8989- /*
8990- * If we are using 1TB segments and we are allowed to randomise
8991- * the heap, we can put it above 1TB so it is backed by a 1TB
8992- * segment. Otherwise the heap will be in the bottom 1TB
8993- * which always uses 256MB segments and this may result in a
8994- * performance penalty.
8995- */
8996- if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
8997- base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
8998-#endif
8999-
9000- ret = PAGE_ALIGN(base + brk_rnd());
9001-
9002- if (ret < mm->brk)
9003- return mm->brk;
9004-
9005- return ret;
9006-}
9007-
9008diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
9009index f21897b..28c0428 100644
9010--- a/arch/powerpc/kernel/ptrace.c
9011+++ b/arch/powerpc/kernel/ptrace.c
9012@@ -1762,6 +1762,10 @@ long arch_ptrace(struct task_struct *child, long request,
9013 return ret;
9014 }
9015
9016+#ifdef CONFIG_GRKERNSEC_SETXID
9017+extern void gr_delayed_cred_worker(void);
9018+#endif
9019+
9020 /*
9021 * We must return the syscall number to actually look up in the table.
9022 * This can be -1L to skip running any syscall at all.
9023@@ -1774,6 +1778,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
9024
9025 secure_computing_strict(regs->gpr[0]);
9026
9027+#ifdef CONFIG_GRKERNSEC_SETXID
9028+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
9029+ gr_delayed_cred_worker();
9030+#endif
9031+
9032 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
9033 tracehook_report_syscall_entry(regs))
9034 /*
9035@@ -1805,6 +1814,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
9036 {
9037 int step;
9038
9039+#ifdef CONFIG_GRKERNSEC_SETXID
9040+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
9041+ gr_delayed_cred_worker();
9042+#endif
9043+
9044 audit_syscall_exit(regs);
9045
9046 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
9047diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
9048index d3a831a..3a33123 100644
9049--- a/arch/powerpc/kernel/signal_32.c
9050+++ b/arch/powerpc/kernel/signal_32.c
9051@@ -1011,7 +1011,7 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
9052 /* Save user registers on the stack */
9053 frame = &rt_sf->uc.uc_mcontext;
9054 addr = frame;
9055- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
9056+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
9057 sigret = 0;
9058 tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
9059 } else {
9060diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
9061index c7c24d2..1bf7039 100644
9062--- a/arch/powerpc/kernel/signal_64.c
9063+++ b/arch/powerpc/kernel/signal_64.c
9064@@ -754,7 +754,7 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
9065 current->thread.fp_state.fpscr = 0;
9066
9067 /* Set up to return from userspace. */
9068- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
9069+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
9070 regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
9071 } else {
9072 err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
9073diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
9074index 19e4744..28a8d7b 100644
9075--- a/arch/powerpc/kernel/traps.c
9076+++ b/arch/powerpc/kernel/traps.c
9077@@ -36,6 +36,7 @@
9078 #include <linux/debugfs.h>
9079 #include <linux/ratelimit.h>
9080 #include <linux/context_tracking.h>
9081+#include <linux/uaccess.h>
9082
9083 #include <asm/emulated_ops.h>
9084 #include <asm/pgtable.h>
9085@@ -142,6 +143,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
9086 return flags;
9087 }
9088
9089+extern void gr_handle_kernel_exploit(void);
9090+
9091 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
9092 int signr)
9093 {
9094@@ -191,6 +194,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
9095 panic("Fatal exception in interrupt");
9096 if (panic_on_oops)
9097 panic("Fatal exception");
9098+
9099+ gr_handle_kernel_exploit();
9100+
9101 do_exit(signr);
9102 }
9103
9104@@ -1137,6 +1143,26 @@ void __kprobes program_check_exception(struct pt_regs *regs)
9105 enum ctx_state prev_state = exception_enter();
9106 unsigned int reason = get_reason(regs);
9107
9108+#ifdef CONFIG_PAX_REFCOUNT
9109+ unsigned int bkpt;
9110+ const struct exception_table_entry *entry;
9111+
9112+ if (reason & REASON_ILLEGAL) {
9113+ /* Check if PaX bad instruction */
9114+ if (!probe_kernel_address(regs->nip, bkpt) && bkpt == 0xc00b00) {
9115+ current->thread.trap_nr = 0;
9116+ pax_report_refcount_overflow(regs);
9117+ /* fixup_exception() for PowerPC does not exist, simulate its job */
9118+ if ((entry = search_exception_tables(regs->nip)) != NULL) {
9119+ regs->nip = entry->fixup;
9120+ return;
9121+ }
9122+ /* fixup_exception() could not handle */
9123+ goto bail;
9124+ }
9125+ }
9126+#endif
9127+
9128 /* We can now get here via a FP Unavailable exception if the core
9129 * has no FPU, in that case the reason flags will be 0 */
9130
9131diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
9132index 305eb0d..accc5b40 100644
9133--- a/arch/powerpc/kernel/vdso.c
9134+++ b/arch/powerpc/kernel/vdso.c
9135@@ -34,6 +34,7 @@
9136 #include <asm/vdso.h>
9137 #include <asm/vdso_datapage.h>
9138 #include <asm/setup.h>
9139+#include <asm/mman.h>
9140
9141 #undef DEBUG
9142
9143@@ -220,7 +221,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
9144 vdso_base = VDSO32_MBASE;
9145 #endif
9146
9147- current->mm->context.vdso_base = 0;
9148+ current->mm->context.vdso_base = ~0UL;
9149
9150 /* vDSO has a problem and was disabled, just don't "enable" it for the
9151 * process
9152@@ -240,7 +241,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
9153 vdso_base = get_unmapped_area(NULL, vdso_base,
9154 (vdso_pages << PAGE_SHIFT) +
9155 ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
9156- 0, 0);
9157+ 0, MAP_PRIVATE | MAP_EXECUTABLE);
9158 if (IS_ERR_VALUE(vdso_base)) {
9159 rc = vdso_base;
9160 goto fail_mmapsem;
9161diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
9162index 27c0fac..6ec4a32 100644
9163--- a/arch/powerpc/kvm/powerpc.c
9164+++ b/arch/powerpc/kvm/powerpc.c
9165@@ -1402,7 +1402,7 @@ void kvmppc_init_lpid(unsigned long nr_lpids_param)
9166 }
9167 EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
9168
9169-int kvm_arch_init(void *opaque)
9170+int kvm_arch_init(const void *opaque)
9171 {
9172 return 0;
9173 }
9174diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
9175index 5eea6f3..5d10396 100644
9176--- a/arch/powerpc/lib/usercopy_64.c
9177+++ b/arch/powerpc/lib/usercopy_64.c
9178@@ -9,22 +9,6 @@
9179 #include <linux/module.h>
9180 #include <asm/uaccess.h>
9181
9182-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
9183-{
9184- if (likely(access_ok(VERIFY_READ, from, n)))
9185- n = __copy_from_user(to, from, n);
9186- else
9187- memset(to, 0, n);
9188- return n;
9189-}
9190-
9191-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
9192-{
9193- if (likely(access_ok(VERIFY_WRITE, to, n)))
9194- n = __copy_to_user(to, from, n);
9195- return n;
9196-}
9197-
9198 unsigned long copy_in_user(void __user *to, const void __user *from,
9199 unsigned long n)
9200 {
9201@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
9202 return n;
9203 }
9204
9205-EXPORT_SYMBOL(copy_from_user);
9206-EXPORT_SYMBOL(copy_to_user);
9207 EXPORT_SYMBOL(copy_in_user);
9208
9209diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
9210index b396868..3eb6b9f 100644
9211--- a/arch/powerpc/mm/fault.c
9212+++ b/arch/powerpc/mm/fault.c
9213@@ -33,6 +33,10 @@
9214 #include <linux/ratelimit.h>
9215 #include <linux/context_tracking.h>
9216 #include <linux/hugetlb.h>
9217+#include <linux/slab.h>
9218+#include <linux/pagemap.h>
9219+#include <linux/compiler.h>
9220+#include <linux/unistd.h>
9221
9222 #include <asm/firmware.h>
9223 #include <asm/page.h>
9224@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
9225 }
9226 #endif
9227
9228+#ifdef CONFIG_PAX_PAGEEXEC
9229+/*
9230+ * PaX: decide what to do with offenders (regs->nip = fault address)
9231+ *
9232+ * returns 1 when task should be killed
9233+ */
9234+static int pax_handle_fetch_fault(struct pt_regs *regs)
9235+{
9236+ return 1;
9237+}
9238+
9239+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
9240+{
9241+ unsigned long i;
9242+
9243+ printk(KERN_ERR "PAX: bytes at PC: ");
9244+ for (i = 0; i < 5; i++) {
9245+ unsigned int c;
9246+ if (get_user(c, (unsigned int __user *)pc+i))
9247+ printk(KERN_CONT "???????? ");
9248+ else
9249+ printk(KERN_CONT "%08x ", c);
9250+ }
9251+ printk("\n");
9252+}
9253+#endif
9254+
9255 /*
9256 * Check whether the instruction at regs->nip is a store using
9257 * an update addressing form which will update r1.
9258@@ -227,7 +258,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
9259 * indicate errors in DSISR but can validly be set in SRR1.
9260 */
9261 if (trap == 0x400)
9262- error_code &= 0x48200000;
9263+ error_code &= 0x58200000;
9264 else
9265 is_write = error_code & DSISR_ISSTORE;
9266 #else
9267@@ -383,12 +414,16 @@ good_area:
9268 * "undefined". Of those that can be set, this is the only
9269 * one which seems bad.
9270 */
9271- if (error_code & 0x10000000)
9272+ if (error_code & DSISR_GUARDED)
9273 /* Guarded storage error. */
9274 goto bad_area;
9275 #endif /* CONFIG_8xx */
9276
9277 if (is_exec) {
9278+#ifdef CONFIG_PPC_STD_MMU
9279+ if (error_code & DSISR_GUARDED)
9280+ goto bad_area;
9281+#endif
9282 /*
9283 * Allow execution from readable areas if the MMU does not
9284 * provide separate controls over reading and executing.
9285@@ -483,6 +518,23 @@ bad_area:
9286 bad_area_nosemaphore:
9287 /* User mode accesses cause a SIGSEGV */
9288 if (user_mode(regs)) {
9289+
9290+#ifdef CONFIG_PAX_PAGEEXEC
9291+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
9292+#ifdef CONFIG_PPC_STD_MMU
9293+ if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
9294+#else
9295+ if (is_exec && regs->nip == address) {
9296+#endif
9297+ switch (pax_handle_fetch_fault(regs)) {
9298+ }
9299+
9300+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
9301+ do_group_exit(SIGKILL);
9302+ }
9303+ }
9304+#endif
9305+
9306 _exception(SIGSEGV, regs, code, address);
9307 goto bail;
9308 }
9309diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
9310index cb8bdbe..cde4bc7 100644
9311--- a/arch/powerpc/mm/mmap.c
9312+++ b/arch/powerpc/mm/mmap.c
9313@@ -53,10 +53,14 @@ static inline int mmap_is_legacy(void)
9314 return sysctl_legacy_va_layout;
9315 }
9316
9317-static unsigned long mmap_rnd(void)
9318+static unsigned long mmap_rnd(struct mm_struct *mm)
9319 {
9320 unsigned long rnd = 0;
9321
9322+#ifdef CONFIG_PAX_RANDMMAP
9323+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9324+#endif
9325+
9326 if (current->flags & PF_RANDOMIZE) {
9327 /* 8MB for 32bit, 1GB for 64bit */
9328 if (is_32bit_task())
9329@@ -67,7 +71,7 @@ static unsigned long mmap_rnd(void)
9330 return rnd << PAGE_SHIFT;
9331 }
9332
9333-static inline unsigned long mmap_base(void)
9334+static inline unsigned long mmap_base(struct mm_struct *mm)
9335 {
9336 unsigned long gap = rlimit(RLIMIT_STACK);
9337
9338@@ -76,7 +80,7 @@ static inline unsigned long mmap_base(void)
9339 else if (gap > MAX_GAP)
9340 gap = MAX_GAP;
9341
9342- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
9343+ return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd(mm));
9344 }
9345
9346 /*
9347@@ -91,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9348 */
9349 if (mmap_is_legacy()) {
9350 mm->mmap_base = TASK_UNMAPPED_BASE;
9351+
9352+#ifdef CONFIG_PAX_RANDMMAP
9353+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9354+ mm->mmap_base += mm->delta_mmap;
9355+#endif
9356+
9357 mm->get_unmapped_area = arch_get_unmapped_area;
9358 } else {
9359- mm->mmap_base = mmap_base();
9360+ mm->mmap_base = mmap_base(mm);
9361+
9362+#ifdef CONFIG_PAX_RANDMMAP
9363+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9364+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9365+#endif
9366+
9367 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9368 }
9369 }
9370diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
9371index 0f432a7..abfe841 100644
9372--- a/arch/powerpc/mm/slice.c
9373+++ b/arch/powerpc/mm/slice.c
9374@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
9375 if ((mm->task_size - len) < addr)
9376 return 0;
9377 vma = find_vma(mm, addr);
9378- return (!vma || (addr + len) <= vma->vm_start);
9379+ return check_heap_stack_gap(vma, addr, len, 0);
9380 }
9381
9382 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
9383@@ -277,6 +277,12 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
9384 info.align_offset = 0;
9385
9386 addr = TASK_UNMAPPED_BASE;
9387+
9388+#ifdef CONFIG_PAX_RANDMMAP
9389+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9390+ addr += mm->delta_mmap;
9391+#endif
9392+
9393 while (addr < TASK_SIZE) {
9394 info.low_limit = addr;
9395 if (!slice_scan_available(addr, available, 1, &addr))
9396@@ -410,6 +416,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
9397 if (fixed && addr > (mm->task_size - len))
9398 return -ENOMEM;
9399
9400+#ifdef CONFIG_PAX_RANDMMAP
9401+ if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
9402+ addr = 0;
9403+#endif
9404+
9405 /* If hint, make sure it matches our alignment restrictions */
9406 if (!fixed && addr) {
9407 addr = _ALIGN_UP(addr, 1ul << pshift);
9408diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
9409index d966bbe..372124a 100644
9410--- a/arch/powerpc/platforms/cell/spufs/file.c
9411+++ b/arch/powerpc/platforms/cell/spufs/file.c
9412@@ -280,9 +280,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
9413 return VM_FAULT_NOPAGE;
9414 }
9415
9416-static int spufs_mem_mmap_access(struct vm_area_struct *vma,
9417+static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
9418 unsigned long address,
9419- void *buf, int len, int write)
9420+ void *buf, size_t len, int write)
9421 {
9422 struct spu_context *ctx = vma->vm_file->private_data;
9423 unsigned long offset = address - vma->vm_start;
9424diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
9425index fa934fe..c296056 100644
9426--- a/arch/s390/include/asm/atomic.h
9427+++ b/arch/s390/include/asm/atomic.h
9428@@ -412,4 +412,14 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
9429 #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
9430 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
9431
9432+#define atomic64_read_unchecked(v) atomic64_read(v)
9433+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
9434+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
9435+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
9436+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
9437+#define atomic64_inc_unchecked(v) atomic64_inc(v)
9438+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
9439+#define atomic64_dec_unchecked(v) atomic64_dec(v)
9440+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
9441+
9442 #endif /* __ARCH_S390_ATOMIC__ */
9443diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
9444index 8d72471..5322500 100644
9445--- a/arch/s390/include/asm/barrier.h
9446+++ b/arch/s390/include/asm/barrier.h
9447@@ -42,7 +42,7 @@
9448 do { \
9449 compiletime_assert_atomic_type(*p); \
9450 barrier(); \
9451- ACCESS_ONCE(*p) = (v); \
9452+ ACCESS_ONCE_RW(*p) = (v); \
9453 } while (0)
9454
9455 #define smp_load_acquire(p) \
9456diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
9457index 4d7ccac..d03d0ad 100644
9458--- a/arch/s390/include/asm/cache.h
9459+++ b/arch/s390/include/asm/cache.h
9460@@ -9,8 +9,10 @@
9461 #ifndef __ARCH_S390_CACHE_H
9462 #define __ARCH_S390_CACHE_H
9463
9464-#define L1_CACHE_BYTES 256
9465+#include <linux/const.h>
9466+
9467 #define L1_CACHE_SHIFT 8
9468+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9469 #define NET_SKB_PAD 32
9470
9471 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9472diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
9473index c9c875d..b4b0e4c 100644
9474--- a/arch/s390/include/asm/elf.h
9475+++ b/arch/s390/include/asm/elf.h
9476@@ -163,8 +163,14 @@ extern unsigned int vdso_enabled;
9477 the loader. We need to make sure that it is out of the way of the program
9478 that it will "exec", and that there is sufficient room for the brk. */
9479
9480-extern unsigned long randomize_et_dyn(void);
9481-#define ELF_ET_DYN_BASE randomize_et_dyn()
9482+#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2)
9483+
9484+#ifdef CONFIG_PAX_ASLR
9485+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
9486+
9487+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9488+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9489+#endif
9490
9491 /* This yields a mask that user programs can use to figure out what
9492 instruction set this CPU supports. */
9493@@ -225,9 +231,6 @@ struct linux_binprm;
9494 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
9495 int arch_setup_additional_pages(struct linux_binprm *, int);
9496
9497-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
9498-#define arch_randomize_brk arch_randomize_brk
9499-
9500 void *fill_cpu_elf_notes(void *ptr, struct save_area *sa, __vector128 *vxrs);
9501
9502 #endif
9503diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
9504index c4a93d6..4d2a9b4 100644
9505--- a/arch/s390/include/asm/exec.h
9506+++ b/arch/s390/include/asm/exec.h
9507@@ -7,6 +7,6 @@
9508 #ifndef __ASM_EXEC_H
9509 #define __ASM_EXEC_H
9510
9511-extern unsigned long arch_align_stack(unsigned long sp);
9512+#define arch_align_stack(x) ((x) & ~0xfUL)
9513
9514 #endif /* __ASM_EXEC_H */
9515diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
9516index cd4c68e..6764641 100644
9517--- a/arch/s390/include/asm/uaccess.h
9518+++ b/arch/s390/include/asm/uaccess.h
9519@@ -59,6 +59,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
9520 __range_ok((unsigned long)(addr), (size)); \
9521 })
9522
9523+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
9524 #define access_ok(type, addr, size) __access_ok(addr, size)
9525
9526 /*
9527@@ -275,6 +276,10 @@ static inline unsigned long __must_check
9528 copy_to_user(void __user *to, const void *from, unsigned long n)
9529 {
9530 might_fault();
9531+
9532+ if ((long)n < 0)
9533+ return n;
9534+
9535 return __copy_to_user(to, from, n);
9536 }
9537
9538@@ -303,10 +308,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
9539 static inline unsigned long __must_check
9540 copy_from_user(void *to, const void __user *from, unsigned long n)
9541 {
9542- unsigned int sz = __compiletime_object_size(to);
9543+ size_t sz = __compiletime_object_size(to);
9544
9545 might_fault();
9546- if (unlikely(sz != -1 && sz < n)) {
9547+
9548+ if ((long)n < 0)
9549+ return n;
9550+
9551+ if (unlikely(sz != (size_t)-1 && sz < n)) {
9552 copy_from_user_overflow();
9553 return n;
9554 }
9555diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
9556index 2ca9586..55682a9 100644
9557--- a/arch/s390/kernel/module.c
9558+++ b/arch/s390/kernel/module.c
9559@@ -165,11 +165,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
9560
9561 /* Increase core size by size of got & plt and set start
9562 offsets for got and plt. */
9563- me->core_size = ALIGN(me->core_size, 4);
9564- me->arch.got_offset = me->core_size;
9565- me->core_size += me->arch.got_size;
9566- me->arch.plt_offset = me->core_size;
9567- me->core_size += me->arch.plt_size;
9568+ me->core_size_rw = ALIGN(me->core_size_rw, 4);
9569+ me->arch.got_offset = me->core_size_rw;
9570+ me->core_size_rw += me->arch.got_size;
9571+ me->arch.plt_offset = me->core_size_rx;
9572+ me->core_size_rx += me->arch.plt_size;
9573 return 0;
9574 }
9575
9576@@ -285,7 +285,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9577 if (info->got_initialized == 0) {
9578 Elf_Addr *gotent;
9579
9580- gotent = me->module_core + me->arch.got_offset +
9581+ gotent = me->module_core_rw + me->arch.got_offset +
9582 info->got_offset;
9583 *gotent = val;
9584 info->got_initialized = 1;
9585@@ -308,7 +308,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9586 rc = apply_rela_bits(loc, val, 0, 64, 0);
9587 else if (r_type == R_390_GOTENT ||
9588 r_type == R_390_GOTPLTENT) {
9589- val += (Elf_Addr) me->module_core - loc;
9590+ val += (Elf_Addr) me->module_core_rw - loc;
9591 rc = apply_rela_bits(loc, val, 1, 32, 1);
9592 }
9593 break;
9594@@ -321,7 +321,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9595 case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
9596 if (info->plt_initialized == 0) {
9597 unsigned int *ip;
9598- ip = me->module_core + me->arch.plt_offset +
9599+ ip = me->module_core_rx + me->arch.plt_offset +
9600 info->plt_offset;
9601 #ifndef CONFIG_64BIT
9602 ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
9603@@ -346,7 +346,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9604 val - loc + 0xffffUL < 0x1ffffeUL) ||
9605 (r_type == R_390_PLT32DBL &&
9606 val - loc + 0xffffffffULL < 0x1fffffffeULL)))
9607- val = (Elf_Addr) me->module_core +
9608+ val = (Elf_Addr) me->module_core_rx +
9609 me->arch.plt_offset +
9610 info->plt_offset;
9611 val += rela->r_addend - loc;
9612@@ -368,7 +368,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9613 case R_390_GOTOFF32: /* 32 bit offset to GOT. */
9614 case R_390_GOTOFF64: /* 64 bit offset to GOT. */
9615 val = val + rela->r_addend -
9616- ((Elf_Addr) me->module_core + me->arch.got_offset);
9617+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
9618 if (r_type == R_390_GOTOFF16)
9619 rc = apply_rela_bits(loc, val, 0, 16, 0);
9620 else if (r_type == R_390_GOTOFF32)
9621@@ -378,7 +378,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9622 break;
9623 case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
9624 case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
9625- val = (Elf_Addr) me->module_core + me->arch.got_offset +
9626+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
9627 rela->r_addend - loc;
9628 if (r_type == R_390_GOTPC)
9629 rc = apply_rela_bits(loc, val, 1, 32, 0);
9630diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
9631index 13fc097..84d375f 100644
9632--- a/arch/s390/kernel/process.c
9633+++ b/arch/s390/kernel/process.c
9634@@ -227,27 +227,3 @@ unsigned long get_wchan(struct task_struct *p)
9635 }
9636 return 0;
9637 }
9638-
9639-unsigned long arch_align_stack(unsigned long sp)
9640-{
9641- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
9642- sp -= get_random_int() & ~PAGE_MASK;
9643- return sp & ~0xf;
9644-}
9645-
9646-static inline unsigned long brk_rnd(void)
9647-{
9648- /* 8MB for 32bit, 1GB for 64bit */
9649- if (is_32bit_task())
9650- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
9651- else
9652- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
9653-}
9654-
9655-unsigned long arch_randomize_brk(struct mm_struct *mm)
9656-{
9657- unsigned long ret;
9658-
9659- ret = PAGE_ALIGN(mm->brk + brk_rnd());
9660- return (ret > mm->brk) ? ret : mm->brk;
9661-}
9662diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
9663index 179a2c2..371e85c 100644
9664--- a/arch/s390/mm/mmap.c
9665+++ b/arch/s390/mm/mmap.c
9666@@ -204,9 +204,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9667 */
9668 if (mmap_is_legacy()) {
9669 mm->mmap_base = mmap_base_legacy();
9670+
9671+#ifdef CONFIG_PAX_RANDMMAP
9672+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9673+ mm->mmap_base += mm->delta_mmap;
9674+#endif
9675+
9676 mm->get_unmapped_area = arch_get_unmapped_area;
9677 } else {
9678 mm->mmap_base = mmap_base();
9679+
9680+#ifdef CONFIG_PAX_RANDMMAP
9681+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9682+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9683+#endif
9684+
9685 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9686 }
9687 }
9688@@ -279,9 +291,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9689 */
9690 if (mmap_is_legacy()) {
9691 mm->mmap_base = mmap_base_legacy();
9692+
9693+#ifdef CONFIG_PAX_RANDMMAP
9694+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9695+ mm->mmap_base += mm->delta_mmap;
9696+#endif
9697+
9698 mm->get_unmapped_area = s390_get_unmapped_area;
9699 } else {
9700 mm->mmap_base = mmap_base();
9701+
9702+#ifdef CONFIG_PAX_RANDMMAP
9703+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9704+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9705+#endif
9706+
9707 mm->get_unmapped_area = s390_get_unmapped_area_topdown;
9708 }
9709 }
9710diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
9711index ae3d59f..f65f075 100644
9712--- a/arch/score/include/asm/cache.h
9713+++ b/arch/score/include/asm/cache.h
9714@@ -1,7 +1,9 @@
9715 #ifndef _ASM_SCORE_CACHE_H
9716 #define _ASM_SCORE_CACHE_H
9717
9718+#include <linux/const.h>
9719+
9720 #define L1_CACHE_SHIFT 4
9721-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9722+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9723
9724 #endif /* _ASM_SCORE_CACHE_H */
9725diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
9726index f9f3cd5..58ff438 100644
9727--- a/arch/score/include/asm/exec.h
9728+++ b/arch/score/include/asm/exec.h
9729@@ -1,6 +1,6 @@
9730 #ifndef _ASM_SCORE_EXEC_H
9731 #define _ASM_SCORE_EXEC_H
9732
9733-extern unsigned long arch_align_stack(unsigned long sp);
9734+#define arch_align_stack(x) (x)
9735
9736 #endif /* _ASM_SCORE_EXEC_H */
9737diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
9738index a1519ad3..e8ac1ff 100644
9739--- a/arch/score/kernel/process.c
9740+++ b/arch/score/kernel/process.c
9741@@ -116,8 +116,3 @@ unsigned long get_wchan(struct task_struct *task)
9742
9743 return task_pt_regs(task)->cp0_epc;
9744 }
9745-
9746-unsigned long arch_align_stack(unsigned long sp)
9747-{
9748- return sp;
9749-}
9750diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
9751index ef9e555..331bd29 100644
9752--- a/arch/sh/include/asm/cache.h
9753+++ b/arch/sh/include/asm/cache.h
9754@@ -9,10 +9,11 @@
9755 #define __ASM_SH_CACHE_H
9756 #ifdef __KERNEL__
9757
9758+#include <linux/const.h>
9759 #include <linux/init.h>
9760 #include <cpu/cache.h>
9761
9762-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9763+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9764
9765 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9766
9767diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
9768index 6777177..cb5e44f 100644
9769--- a/arch/sh/mm/mmap.c
9770+++ b/arch/sh/mm/mmap.c
9771@@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9772 struct mm_struct *mm = current->mm;
9773 struct vm_area_struct *vma;
9774 int do_colour_align;
9775+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9776 struct vm_unmapped_area_info info;
9777
9778 if (flags & MAP_FIXED) {
9779@@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9780 if (filp || (flags & MAP_SHARED))
9781 do_colour_align = 1;
9782
9783+#ifdef CONFIG_PAX_RANDMMAP
9784+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9785+#endif
9786+
9787 if (addr) {
9788 if (do_colour_align)
9789 addr = COLOUR_ALIGN(addr, pgoff);
9790@@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9791 addr = PAGE_ALIGN(addr);
9792
9793 vma = find_vma(mm, addr);
9794- if (TASK_SIZE - len >= addr &&
9795- (!vma || addr + len <= vma->vm_start))
9796+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9797 return addr;
9798 }
9799
9800 info.flags = 0;
9801 info.length = len;
9802- info.low_limit = TASK_UNMAPPED_BASE;
9803+ info.low_limit = mm->mmap_base;
9804 info.high_limit = TASK_SIZE;
9805 info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
9806 info.align_offset = pgoff << PAGE_SHIFT;
9807@@ -85,6 +89,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9808 struct mm_struct *mm = current->mm;
9809 unsigned long addr = addr0;
9810 int do_colour_align;
9811+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9812 struct vm_unmapped_area_info info;
9813
9814 if (flags & MAP_FIXED) {
9815@@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9816 if (filp || (flags & MAP_SHARED))
9817 do_colour_align = 1;
9818
9819+#ifdef CONFIG_PAX_RANDMMAP
9820+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9821+#endif
9822+
9823 /* requesting a specific address */
9824 if (addr) {
9825 if (do_colour_align)
9826@@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9827 addr = PAGE_ALIGN(addr);
9828
9829 vma = find_vma(mm, addr);
9830- if (TASK_SIZE - len >= addr &&
9831- (!vma || addr + len <= vma->vm_start))
9832+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9833 return addr;
9834 }
9835
9836@@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9837 VM_BUG_ON(addr != -ENOMEM);
9838 info.flags = 0;
9839 info.low_limit = TASK_UNMAPPED_BASE;
9840+
9841+#ifdef CONFIG_PAX_RANDMMAP
9842+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9843+ info.low_limit += mm->delta_mmap;
9844+#endif
9845+
9846 info.high_limit = TASK_SIZE;
9847 addr = vm_unmapped_area(&info);
9848 }
9849diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
9850index 4082749..fd97781 100644
9851--- a/arch/sparc/include/asm/atomic_64.h
9852+++ b/arch/sparc/include/asm/atomic_64.h
9853@@ -15,18 +15,38 @@
9854 #define ATOMIC64_INIT(i) { (i) }
9855
9856 #define atomic_read(v) ACCESS_ONCE((v)->counter)
9857+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
9858+{
9859+ return ACCESS_ONCE(v->counter);
9860+}
9861 #define atomic64_read(v) ACCESS_ONCE((v)->counter)
9862+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
9863+{
9864+ return ACCESS_ONCE(v->counter);
9865+}
9866
9867 #define atomic_set(v, i) (((v)->counter) = i)
9868+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
9869+{
9870+ v->counter = i;
9871+}
9872 #define atomic64_set(v, i) (((v)->counter) = i)
9873+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
9874+{
9875+ v->counter = i;
9876+}
9877
9878-#define ATOMIC_OP(op) \
9879-void atomic_##op(int, atomic_t *); \
9880-void atomic64_##op(long, atomic64_t *);
9881+#define __ATOMIC_OP(op, suffix) \
9882+void atomic_##op##suffix(int, atomic##suffix##_t *); \
9883+void atomic64_##op##suffix(long, atomic64##suffix##_t *);
9884
9885-#define ATOMIC_OP_RETURN(op) \
9886-int atomic_##op##_return(int, atomic_t *); \
9887-long atomic64_##op##_return(long, atomic64_t *);
9888+#define ATOMIC_OP(op) __ATOMIC_OP(op, ) __ATOMIC_OP(op, _unchecked)
9889+
9890+#define __ATOMIC_OP_RETURN(op, suffix) \
9891+int atomic_##op##_return##suffix(int, atomic##suffix##_t *); \
9892+long atomic64_##op##_return##suffix(long, atomic64##suffix##_t *);
9893+
9894+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, ) __ATOMIC_OP_RETURN(op, _unchecked)
9895
9896 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
9897
9898@@ -35,13 +55,23 @@ ATOMIC_OPS(sub)
9899
9900 #undef ATOMIC_OPS
9901 #undef ATOMIC_OP_RETURN
9902+#undef __ATOMIC_OP_RETURN
9903 #undef ATOMIC_OP
9904+#undef __ATOMIC_OP
9905
9906 #define atomic_dec_return(v) atomic_sub_return(1, v)
9907 #define atomic64_dec_return(v) atomic64_sub_return(1, v)
9908
9909 #define atomic_inc_return(v) atomic_add_return(1, v)
9910+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
9911+{
9912+ return atomic_add_return_unchecked(1, v);
9913+}
9914 #define atomic64_inc_return(v) atomic64_add_return(1, v)
9915+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
9916+{
9917+ return atomic64_add_return_unchecked(1, v);
9918+}
9919
9920 /*
9921 * atomic_inc_and_test - increment and test
9922@@ -52,6 +82,10 @@ ATOMIC_OPS(sub)
9923 * other cases.
9924 */
9925 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
9926+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
9927+{
9928+ return atomic_inc_return_unchecked(v) == 0;
9929+}
9930 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
9931
9932 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
9933@@ -61,25 +95,60 @@ ATOMIC_OPS(sub)
9934 #define atomic64_dec_and_test(v) (atomic64_sub_return(1, v) == 0)
9935
9936 #define atomic_inc(v) atomic_add(1, v)
9937+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
9938+{
9939+ atomic_add_unchecked(1, v);
9940+}
9941 #define atomic64_inc(v) atomic64_add(1, v)
9942+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
9943+{
9944+ atomic64_add_unchecked(1, v);
9945+}
9946
9947 #define atomic_dec(v) atomic_sub(1, v)
9948+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
9949+{
9950+ atomic_sub_unchecked(1, v);
9951+}
9952 #define atomic64_dec(v) atomic64_sub(1, v)
9953+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
9954+{
9955+ atomic64_sub_unchecked(1, v);
9956+}
9957
9958 #define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
9959 #define atomic64_add_negative(i, v) (atomic64_add_return(i, v) < 0)
9960
9961 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
9962+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
9963+{
9964+ return cmpxchg(&v->counter, old, new);
9965+}
9966 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
9967+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
9968+{
9969+ return xchg(&v->counter, new);
9970+}
9971
9972 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9973 {
9974- int c, old;
9975+ int c, old, new;
9976 c = atomic_read(v);
9977 for (;;) {
9978- if (unlikely(c == (u)))
9979+ if (unlikely(c == u))
9980 break;
9981- old = atomic_cmpxchg((v), c, c + (a));
9982+
9983+ asm volatile("addcc %2, %0, %0\n"
9984+
9985+#ifdef CONFIG_PAX_REFCOUNT
9986+ "tvs %%icc, 6\n"
9987+#endif
9988+
9989+ : "=r" (new)
9990+ : "0" (c), "ir" (a)
9991+ : "cc");
9992+
9993+ old = atomic_cmpxchg(v, c, new);
9994 if (likely(old == c))
9995 break;
9996 c = old;
9997@@ -90,20 +159,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9998 #define atomic64_cmpxchg(v, o, n) \
9999 ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
10000 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
10001+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
10002+{
10003+ return xchg(&v->counter, new);
10004+}
10005
10006 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
10007 {
10008- long c, old;
10009+ long c, old, new;
10010 c = atomic64_read(v);
10011 for (;;) {
10012- if (unlikely(c == (u)))
10013+ if (unlikely(c == u))
10014 break;
10015- old = atomic64_cmpxchg((v), c, c + (a));
10016+
10017+ asm volatile("addcc %2, %0, %0\n"
10018+
10019+#ifdef CONFIG_PAX_REFCOUNT
10020+ "tvs %%xcc, 6\n"
10021+#endif
10022+
10023+ : "=r" (new)
10024+ : "0" (c), "ir" (a)
10025+ : "cc");
10026+
10027+ old = atomic64_cmpxchg(v, c, new);
10028 if (likely(old == c))
10029 break;
10030 c = old;
10031 }
10032- return c != (u);
10033+ return c != u;
10034 }
10035
10036 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
10037diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h
10038index 7664894..45a974b 100644
10039--- a/arch/sparc/include/asm/barrier_64.h
10040+++ b/arch/sparc/include/asm/barrier_64.h
10041@@ -60,7 +60,7 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
10042 do { \
10043 compiletime_assert_atomic_type(*p); \
10044 barrier(); \
10045- ACCESS_ONCE(*p) = (v); \
10046+ ACCESS_ONCE_RW(*p) = (v); \
10047 } while (0)
10048
10049 #define smp_load_acquire(p) \
10050diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
10051index 5bb6991..5c2132e 100644
10052--- a/arch/sparc/include/asm/cache.h
10053+++ b/arch/sparc/include/asm/cache.h
10054@@ -7,10 +7,12 @@
10055 #ifndef _SPARC_CACHE_H
10056 #define _SPARC_CACHE_H
10057
10058+#include <linux/const.h>
10059+
10060 #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
10061
10062 #define L1_CACHE_SHIFT 5
10063-#define L1_CACHE_BYTES 32
10064+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
10065
10066 #ifdef CONFIG_SPARC32
10067 #define SMP_CACHE_BYTES_SHIFT 5
10068diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
10069index a24e41f..47677ff 100644
10070--- a/arch/sparc/include/asm/elf_32.h
10071+++ b/arch/sparc/include/asm/elf_32.h
10072@@ -114,6 +114,13 @@ typedef struct {
10073
10074 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
10075
10076+#ifdef CONFIG_PAX_ASLR
10077+#define PAX_ELF_ET_DYN_BASE 0x10000UL
10078+
10079+#define PAX_DELTA_MMAP_LEN 16
10080+#define PAX_DELTA_STACK_LEN 16
10081+#endif
10082+
10083 /* This yields a mask that user programs can use to figure out what
10084 instruction set this cpu supports. This can NOT be done in userspace
10085 on Sparc. */
10086diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
10087index 370ca1e..d4f4a98 100644
10088--- a/arch/sparc/include/asm/elf_64.h
10089+++ b/arch/sparc/include/asm/elf_64.h
10090@@ -189,6 +189,13 @@ typedef struct {
10091 #define ELF_ET_DYN_BASE 0x0000010000000000UL
10092 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
10093
10094+#ifdef CONFIG_PAX_ASLR
10095+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
10096+
10097+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28)
10098+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29)
10099+#endif
10100+
10101 extern unsigned long sparc64_elf_hwcap;
10102 #define ELF_HWCAP sparc64_elf_hwcap
10103
10104diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
10105index a3890da..f6a408e 100644
10106--- a/arch/sparc/include/asm/pgalloc_32.h
10107+++ b/arch/sparc/include/asm/pgalloc_32.h
10108@@ -35,6 +35,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
10109 }
10110
10111 #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
10112+#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
10113
10114 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
10115 unsigned long address)
10116diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
10117index 5e31871..13469c6 100644
10118--- a/arch/sparc/include/asm/pgalloc_64.h
10119+++ b/arch/sparc/include/asm/pgalloc_64.h
10120@@ -21,6 +21,7 @@ static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
10121 }
10122
10123 #define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD)
10124+#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
10125
10126 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
10127 {
10128@@ -38,6 +39,7 @@ static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
10129 }
10130
10131 #define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD)
10132+#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD))
10133
10134 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
10135 {
10136diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
10137index 59ba6f6..4518128 100644
10138--- a/arch/sparc/include/asm/pgtable.h
10139+++ b/arch/sparc/include/asm/pgtable.h
10140@@ -5,4 +5,8 @@
10141 #else
10142 #include <asm/pgtable_32.h>
10143 #endif
10144+
10145+#define ktla_ktva(addr) (addr)
10146+#define ktva_ktla(addr) (addr)
10147+
10148 #endif
10149diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
10150index f06b36a..bca3189 100644
10151--- a/arch/sparc/include/asm/pgtable_32.h
10152+++ b/arch/sparc/include/asm/pgtable_32.h
10153@@ -51,6 +51,9 @@ unsigned long __init bootmem_init(unsigned long *pages_avail);
10154 #define PAGE_SHARED SRMMU_PAGE_SHARED
10155 #define PAGE_COPY SRMMU_PAGE_COPY
10156 #define PAGE_READONLY SRMMU_PAGE_RDONLY
10157+#define PAGE_SHARED_NOEXEC SRMMU_PAGE_SHARED_NOEXEC
10158+#define PAGE_COPY_NOEXEC SRMMU_PAGE_COPY_NOEXEC
10159+#define PAGE_READONLY_NOEXEC SRMMU_PAGE_RDONLY_NOEXEC
10160 #define PAGE_KERNEL SRMMU_PAGE_KERNEL
10161
10162 /* Top-level page directory - dummy used by init-mm.
10163@@ -63,18 +66,18 @@ extern unsigned long ptr_in_current_pgd;
10164
10165 /* xwr */
10166 #define __P000 PAGE_NONE
10167-#define __P001 PAGE_READONLY
10168-#define __P010 PAGE_COPY
10169-#define __P011 PAGE_COPY
10170+#define __P001 PAGE_READONLY_NOEXEC
10171+#define __P010 PAGE_COPY_NOEXEC
10172+#define __P011 PAGE_COPY_NOEXEC
10173 #define __P100 PAGE_READONLY
10174 #define __P101 PAGE_READONLY
10175 #define __P110 PAGE_COPY
10176 #define __P111 PAGE_COPY
10177
10178 #define __S000 PAGE_NONE
10179-#define __S001 PAGE_READONLY
10180-#define __S010 PAGE_SHARED
10181-#define __S011 PAGE_SHARED
10182+#define __S001 PAGE_READONLY_NOEXEC
10183+#define __S010 PAGE_SHARED_NOEXEC
10184+#define __S011 PAGE_SHARED_NOEXEC
10185 #define __S100 PAGE_READONLY
10186 #define __S101 PAGE_READONLY
10187 #define __S110 PAGE_SHARED
10188diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
10189index ae51a11..eadfd03 100644
10190--- a/arch/sparc/include/asm/pgtsrmmu.h
10191+++ b/arch/sparc/include/asm/pgtsrmmu.h
10192@@ -111,6 +111,11 @@
10193 SRMMU_EXEC | SRMMU_REF)
10194 #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
10195 SRMMU_EXEC | SRMMU_REF)
10196+
10197+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
10198+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
10199+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
10200+
10201 #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
10202 SRMMU_DIRTY | SRMMU_REF)
10203
10204diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
10205index 29d64b1..4272fe8 100644
10206--- a/arch/sparc/include/asm/setup.h
10207+++ b/arch/sparc/include/asm/setup.h
10208@@ -55,8 +55,8 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs);
10209 void handle_ld_nf(u32 insn, struct pt_regs *regs);
10210
10211 /* init_64.c */
10212-extern atomic_t dcpage_flushes;
10213-extern atomic_t dcpage_flushes_xcall;
10214+extern atomic_unchecked_t dcpage_flushes;
10215+extern atomic_unchecked_t dcpage_flushes_xcall;
10216
10217 extern int sysctl_tsb_ratio;
10218 #endif
10219diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
10220index 9689176..63c18ea 100644
10221--- a/arch/sparc/include/asm/spinlock_64.h
10222+++ b/arch/sparc/include/asm/spinlock_64.h
10223@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
10224
10225 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
10226
10227-static void inline arch_read_lock(arch_rwlock_t *lock)
10228+static inline void arch_read_lock(arch_rwlock_t *lock)
10229 {
10230 unsigned long tmp1, tmp2;
10231
10232 __asm__ __volatile__ (
10233 "1: ldsw [%2], %0\n"
10234 " brlz,pn %0, 2f\n"
10235-"4: add %0, 1, %1\n"
10236+"4: addcc %0, 1, %1\n"
10237+
10238+#ifdef CONFIG_PAX_REFCOUNT
10239+" tvs %%icc, 6\n"
10240+#endif
10241+
10242 " cas [%2], %0, %1\n"
10243 " cmp %0, %1\n"
10244 " bne,pn %%icc, 1b\n"
10245@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
10246 " .previous"
10247 : "=&r" (tmp1), "=&r" (tmp2)
10248 : "r" (lock)
10249- : "memory");
10250+ : "memory", "cc");
10251 }
10252
10253-static int inline arch_read_trylock(arch_rwlock_t *lock)
10254+static inline int arch_read_trylock(arch_rwlock_t *lock)
10255 {
10256 int tmp1, tmp2;
10257
10258@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
10259 "1: ldsw [%2], %0\n"
10260 " brlz,a,pn %0, 2f\n"
10261 " mov 0, %0\n"
10262-" add %0, 1, %1\n"
10263+" addcc %0, 1, %1\n"
10264+
10265+#ifdef CONFIG_PAX_REFCOUNT
10266+" tvs %%icc, 6\n"
10267+#endif
10268+
10269 " cas [%2], %0, %1\n"
10270 " cmp %0, %1\n"
10271 " bne,pn %%icc, 1b\n"
10272@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
10273 return tmp1;
10274 }
10275
10276-static void inline arch_read_unlock(arch_rwlock_t *lock)
10277+static inline void arch_read_unlock(arch_rwlock_t *lock)
10278 {
10279 unsigned long tmp1, tmp2;
10280
10281 __asm__ __volatile__(
10282 "1: lduw [%2], %0\n"
10283-" sub %0, 1, %1\n"
10284+" subcc %0, 1, %1\n"
10285+
10286+#ifdef CONFIG_PAX_REFCOUNT
10287+" tvs %%icc, 6\n"
10288+#endif
10289+
10290 " cas [%2], %0, %1\n"
10291 " cmp %0, %1\n"
10292 " bne,pn %%xcc, 1b\n"
10293@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
10294 : "memory");
10295 }
10296
10297-static void inline arch_write_lock(arch_rwlock_t *lock)
10298+static inline void arch_write_lock(arch_rwlock_t *lock)
10299 {
10300 unsigned long mask, tmp1, tmp2;
10301
10302@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
10303 : "memory");
10304 }
10305
10306-static void inline arch_write_unlock(arch_rwlock_t *lock)
10307+static inline void arch_write_unlock(arch_rwlock_t *lock)
10308 {
10309 __asm__ __volatile__(
10310 " stw %%g0, [%0]"
10311@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
10312 : "memory");
10313 }
10314
10315-static int inline arch_write_trylock(arch_rwlock_t *lock)
10316+static inline int arch_write_trylock(arch_rwlock_t *lock)
10317 {
10318 unsigned long mask, tmp1, tmp2, result;
10319
10320diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
10321index fd7bd0a..2e2fa7a 100644
10322--- a/arch/sparc/include/asm/thread_info_32.h
10323+++ b/arch/sparc/include/asm/thread_info_32.h
10324@@ -47,6 +47,7 @@ struct thread_info {
10325 struct reg_window32 reg_window[NSWINS]; /* align for ldd! */
10326 unsigned long rwbuf_stkptrs[NSWINS];
10327 unsigned long w_saved;
10328+ unsigned long lowest_stack;
10329 };
10330
10331 /*
10332diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
10333index ff45516..73001ab 100644
10334--- a/arch/sparc/include/asm/thread_info_64.h
10335+++ b/arch/sparc/include/asm/thread_info_64.h
10336@@ -61,6 +61,8 @@ struct thread_info {
10337 struct pt_regs *kern_una_regs;
10338 unsigned int kern_una_insn;
10339
10340+ unsigned long lowest_stack;
10341+
10342 unsigned long fpregs[(7 * 256) / sizeof(unsigned long)]
10343 __attribute__ ((aligned(64)));
10344 };
10345@@ -184,12 +186,13 @@ register struct thread_info *current_thread_info_reg asm("g6");
10346 #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
10347 /* flag bit 4 is available */
10348 #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
10349-/* flag bit 6 is available */
10350+#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
10351 #define TIF_32BIT 7 /* 32-bit binary */
10352 #define TIF_NOHZ 8 /* in adaptive nohz mode */
10353 #define TIF_SECCOMP 9 /* secure computing */
10354 #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */
10355 #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
10356+
10357 /* NOTE: Thread flags >= 12 should be ones we have no interest
10358 * in using in assembly, else we can't use the mask as
10359 * an immediate value in instructions such as andcc.
10360@@ -209,12 +212,17 @@ register struct thread_info *current_thread_info_reg asm("g6");
10361 #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
10362 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
10363 #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
10364+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
10365
10366 #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
10367 _TIF_DO_NOTIFY_RESUME_MASK | \
10368 _TIF_NEED_RESCHED)
10369 #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
10370
10371+#define _TIF_WORK_SYSCALL \
10372+ (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
10373+ _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
10374+
10375 #define is_32bit_task() (test_thread_flag(TIF_32BIT))
10376
10377 /*
10378diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
10379index bd56c28..4b63d83 100644
10380--- a/arch/sparc/include/asm/uaccess.h
10381+++ b/arch/sparc/include/asm/uaccess.h
10382@@ -1,5 +1,6 @@
10383 #ifndef ___ASM_SPARC_UACCESS_H
10384 #define ___ASM_SPARC_UACCESS_H
10385+
10386 #if defined(__sparc__) && defined(__arch64__)
10387 #include <asm/uaccess_64.h>
10388 #else
10389diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
10390index 64ee103..388aef0 100644
10391--- a/arch/sparc/include/asm/uaccess_32.h
10392+++ b/arch/sparc/include/asm/uaccess_32.h
10393@@ -47,6 +47,7 @@
10394 #define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; })
10395 #define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
10396 #define __access_ok(addr, size) (__user_ok((addr) & get_fs().seg, (size)))
10397+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
10398 #define access_ok(type, addr, size) \
10399 ({ (void)(type); __access_ok((unsigned long)(addr), size); })
10400
10401@@ -313,27 +314,46 @@ unsigned long __copy_user(void __user *to, const void __user *from, unsigned lon
10402
10403 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
10404 {
10405- if (n && __access_ok((unsigned long) to, n))
10406+ if ((long)n < 0)
10407+ return n;
10408+
10409+ if (n && __access_ok((unsigned long) to, n)) {
10410+ if (!__builtin_constant_p(n))
10411+ check_object_size(from, n, true);
10412 return __copy_user(to, (__force void __user *) from, n);
10413- else
10414+ } else
10415 return n;
10416 }
10417
10418 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
10419 {
10420+ if ((long)n < 0)
10421+ return n;
10422+
10423+ if (!__builtin_constant_p(n))
10424+ check_object_size(from, n, true);
10425+
10426 return __copy_user(to, (__force void __user *) from, n);
10427 }
10428
10429 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
10430 {
10431- if (n && __access_ok((unsigned long) from, n))
10432+ if ((long)n < 0)
10433+ return n;
10434+
10435+ if (n && __access_ok((unsigned long) from, n)) {
10436+ if (!__builtin_constant_p(n))
10437+ check_object_size(to, n, false);
10438 return __copy_user((__force void __user *) to, from, n);
10439- else
10440+ } else
10441 return n;
10442 }
10443
10444 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
10445 {
10446+ if ((long)n < 0)
10447+ return n;
10448+
10449 return __copy_user((__force void __user *) to, from, n);
10450 }
10451
10452diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
10453index a35194b..47dabc0d 100644
10454--- a/arch/sparc/include/asm/uaccess_64.h
10455+++ b/arch/sparc/include/asm/uaccess_64.h
10456@@ -10,6 +10,7 @@
10457 #include <linux/compiler.h>
10458 #include <linux/string.h>
10459 #include <linux/thread_info.h>
10460+#include <linux/kernel.h>
10461 #include <asm/asi.h>
10462 #include <asm/spitfire.h>
10463 #include <asm-generic/uaccess-unaligned.h>
10464@@ -54,6 +55,11 @@ static inline int __access_ok(const void __user * addr, unsigned long size)
10465 return 1;
10466 }
10467
10468+static inline int access_ok_noprefault(int type, const void __user * addr, unsigned long size)
10469+{
10470+ return 1;
10471+}
10472+
10473 static inline int access_ok(int type, const void __user * addr, unsigned long size)
10474 {
10475 return 1;
10476@@ -228,8 +234,15 @@ unsigned long copy_from_user_fixup(void *to, const void __user *from,
10477 static inline unsigned long __must_check
10478 copy_from_user(void *to, const void __user *from, unsigned long size)
10479 {
10480- unsigned long ret = ___copy_from_user(to, from, size);
10481+ unsigned long ret;
10482
10483+ if ((long)size < 0 || size > INT_MAX)
10484+ return size;
10485+
10486+ if (!__builtin_constant_p(size))
10487+ check_object_size(to, size, false);
10488+
10489+ ret = ___copy_from_user(to, from, size);
10490 if (unlikely(ret))
10491 ret = copy_from_user_fixup(to, from, size);
10492
10493@@ -245,8 +258,15 @@ unsigned long copy_to_user_fixup(void __user *to, const void *from,
10494 static inline unsigned long __must_check
10495 copy_to_user(void __user *to, const void *from, unsigned long size)
10496 {
10497- unsigned long ret = ___copy_to_user(to, from, size);
10498+ unsigned long ret;
10499
10500+ if ((long)size < 0 || size > INT_MAX)
10501+ return size;
10502+
10503+ if (!__builtin_constant_p(size))
10504+ check_object_size(from, size, true);
10505+
10506+ ret = ___copy_to_user(to, from, size);
10507 if (unlikely(ret))
10508 ret = copy_to_user_fixup(to, from, size);
10509 return ret;
10510diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
10511index 7cf9c6e..6206648 100644
10512--- a/arch/sparc/kernel/Makefile
10513+++ b/arch/sparc/kernel/Makefile
10514@@ -4,7 +4,7 @@
10515 #
10516
10517 asflags-y := -ansi
10518-ccflags-y := -Werror
10519+#ccflags-y := -Werror
10520
10521 extra-y := head_$(BITS).o
10522
10523diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
10524index 50e7b62..79fae35 100644
10525--- a/arch/sparc/kernel/process_32.c
10526+++ b/arch/sparc/kernel/process_32.c
10527@@ -123,14 +123,14 @@ void show_regs(struct pt_regs *r)
10528
10529 printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
10530 r->psr, r->pc, r->npc, r->y, print_tainted());
10531- printk("PC: <%pS>\n", (void *) r->pc);
10532+ printk("PC: <%pA>\n", (void *) r->pc);
10533 printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10534 r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
10535 r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
10536 printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10537 r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
10538 r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
10539- printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
10540+ printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
10541
10542 printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10543 rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
10544@@ -167,7 +167,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
10545 rw = (struct reg_window32 *) fp;
10546 pc = rw->ins[7];
10547 printk("[%08lx : ", pc);
10548- printk("%pS ] ", (void *) pc);
10549+ printk("%pA ] ", (void *) pc);
10550 fp = rw->ins[6];
10551 } while (++count < 16);
10552 printk("\n");
10553diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
10554index 46a5964..a35c62c 100644
10555--- a/arch/sparc/kernel/process_64.c
10556+++ b/arch/sparc/kernel/process_64.c
10557@@ -161,7 +161,7 @@ static void show_regwindow(struct pt_regs *regs)
10558 printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
10559 rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
10560 if (regs->tstate & TSTATE_PRIV)
10561- printk("I7: <%pS>\n", (void *) rwk->ins[7]);
10562+ printk("I7: <%pA>\n", (void *) rwk->ins[7]);
10563 }
10564
10565 void show_regs(struct pt_regs *regs)
10566@@ -170,7 +170,7 @@ void show_regs(struct pt_regs *regs)
10567
10568 printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate,
10569 regs->tpc, regs->tnpc, regs->y, print_tainted());
10570- printk("TPC: <%pS>\n", (void *) regs->tpc);
10571+ printk("TPC: <%pA>\n", (void *) regs->tpc);
10572 printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
10573 regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
10574 regs->u_regs[3]);
10575@@ -183,7 +183,7 @@ void show_regs(struct pt_regs *regs)
10576 printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
10577 regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
10578 regs->u_regs[15]);
10579- printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
10580+ printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
10581 show_regwindow(regs);
10582 show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
10583 }
10584@@ -278,7 +278,7 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
10585 ((tp && tp->task) ? tp->task->pid : -1));
10586
10587 if (gp->tstate & TSTATE_PRIV) {
10588- printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
10589+ printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
10590 (void *) gp->tpc,
10591 (void *) gp->o7,
10592 (void *) gp->i7,
10593diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
10594index 79cc0d1..ec62734 100644
10595--- a/arch/sparc/kernel/prom_common.c
10596+++ b/arch/sparc/kernel/prom_common.c
10597@@ -144,7 +144,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
10598
10599 unsigned int prom_early_allocated __initdata;
10600
10601-static struct of_pdt_ops prom_sparc_ops __initdata = {
10602+static struct of_pdt_ops prom_sparc_ops __initconst = {
10603 .nextprop = prom_common_nextprop,
10604 .getproplen = prom_getproplen,
10605 .getproperty = prom_getproperty,
10606diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
10607index 9ddc492..27a5619 100644
10608--- a/arch/sparc/kernel/ptrace_64.c
10609+++ b/arch/sparc/kernel/ptrace_64.c
10610@@ -1060,6 +1060,10 @@ long arch_ptrace(struct task_struct *child, long request,
10611 return ret;
10612 }
10613
10614+#ifdef CONFIG_GRKERNSEC_SETXID
10615+extern void gr_delayed_cred_worker(void);
10616+#endif
10617+
10618 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10619 {
10620 int ret = 0;
10621@@ -1070,6 +1074,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10622 if (test_thread_flag(TIF_NOHZ))
10623 user_exit();
10624
10625+#ifdef CONFIG_GRKERNSEC_SETXID
10626+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10627+ gr_delayed_cred_worker();
10628+#endif
10629+
10630 if (test_thread_flag(TIF_SYSCALL_TRACE))
10631 ret = tracehook_report_syscall_entry(regs);
10632
10633@@ -1088,6 +1097,11 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
10634 if (test_thread_flag(TIF_NOHZ))
10635 user_exit();
10636
10637+#ifdef CONFIG_GRKERNSEC_SETXID
10638+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10639+ gr_delayed_cred_worker();
10640+#endif
10641+
10642 audit_syscall_exit(regs);
10643
10644 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
10645diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
10646index 61139d9..c1a5f28 100644
10647--- a/arch/sparc/kernel/smp_64.c
10648+++ b/arch/sparc/kernel/smp_64.c
10649@@ -887,7 +887,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10650 return;
10651
10652 #ifdef CONFIG_DEBUG_DCFLUSH
10653- atomic_inc(&dcpage_flushes);
10654+ atomic_inc_unchecked(&dcpage_flushes);
10655 #endif
10656
10657 this_cpu = get_cpu();
10658@@ -911,7 +911,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10659 xcall_deliver(data0, __pa(pg_addr),
10660 (u64) pg_addr, cpumask_of(cpu));
10661 #ifdef CONFIG_DEBUG_DCFLUSH
10662- atomic_inc(&dcpage_flushes_xcall);
10663+ atomic_inc_unchecked(&dcpage_flushes_xcall);
10664 #endif
10665 }
10666 }
10667@@ -930,7 +930,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10668 preempt_disable();
10669
10670 #ifdef CONFIG_DEBUG_DCFLUSH
10671- atomic_inc(&dcpage_flushes);
10672+ atomic_inc_unchecked(&dcpage_flushes);
10673 #endif
10674 data0 = 0;
10675 pg_addr = page_address(page);
10676@@ -947,7 +947,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10677 xcall_deliver(data0, __pa(pg_addr),
10678 (u64) pg_addr, cpu_online_mask);
10679 #ifdef CONFIG_DEBUG_DCFLUSH
10680- atomic_inc(&dcpage_flushes_xcall);
10681+ atomic_inc_unchecked(&dcpage_flushes_xcall);
10682 #endif
10683 }
10684 __local_flush_dcache_page(page);
10685diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
10686index 646988d..b88905f 100644
10687--- a/arch/sparc/kernel/sys_sparc_32.c
10688+++ b/arch/sparc/kernel/sys_sparc_32.c
10689@@ -54,7 +54,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10690 if (len > TASK_SIZE - PAGE_SIZE)
10691 return -ENOMEM;
10692 if (!addr)
10693- addr = TASK_UNMAPPED_BASE;
10694+ addr = current->mm->mmap_base;
10695
10696 info.flags = 0;
10697 info.length = len;
10698diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
10699index 30e7ddb..266a3b0 100644
10700--- a/arch/sparc/kernel/sys_sparc_64.c
10701+++ b/arch/sparc/kernel/sys_sparc_64.c
10702@@ -89,13 +89,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10703 struct vm_area_struct * vma;
10704 unsigned long task_size = TASK_SIZE;
10705 int do_color_align;
10706+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10707 struct vm_unmapped_area_info info;
10708
10709 if (flags & MAP_FIXED) {
10710 /* We do not accept a shared mapping if it would violate
10711 * cache aliasing constraints.
10712 */
10713- if ((flags & MAP_SHARED) &&
10714+ if ((filp || (flags & MAP_SHARED)) &&
10715 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10716 return -EINVAL;
10717 return addr;
10718@@ -110,6 +111,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10719 if (filp || (flags & MAP_SHARED))
10720 do_color_align = 1;
10721
10722+#ifdef CONFIG_PAX_RANDMMAP
10723+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10724+#endif
10725+
10726 if (addr) {
10727 if (do_color_align)
10728 addr = COLOR_ALIGN(addr, pgoff);
10729@@ -117,22 +122,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10730 addr = PAGE_ALIGN(addr);
10731
10732 vma = find_vma(mm, addr);
10733- if (task_size - len >= addr &&
10734- (!vma || addr + len <= vma->vm_start))
10735+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10736 return addr;
10737 }
10738
10739 info.flags = 0;
10740 info.length = len;
10741- info.low_limit = TASK_UNMAPPED_BASE;
10742+ info.low_limit = mm->mmap_base;
10743 info.high_limit = min(task_size, VA_EXCLUDE_START);
10744 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10745 info.align_offset = pgoff << PAGE_SHIFT;
10746+ info.threadstack_offset = offset;
10747 addr = vm_unmapped_area(&info);
10748
10749 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
10750 VM_BUG_ON(addr != -ENOMEM);
10751 info.low_limit = VA_EXCLUDE_END;
10752+
10753+#ifdef CONFIG_PAX_RANDMMAP
10754+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10755+ info.low_limit += mm->delta_mmap;
10756+#endif
10757+
10758 info.high_limit = task_size;
10759 addr = vm_unmapped_area(&info);
10760 }
10761@@ -150,6 +161,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10762 unsigned long task_size = STACK_TOP32;
10763 unsigned long addr = addr0;
10764 int do_color_align;
10765+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10766 struct vm_unmapped_area_info info;
10767
10768 /* This should only ever run for 32-bit processes. */
10769@@ -159,7 +171,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10770 /* We do not accept a shared mapping if it would violate
10771 * cache aliasing constraints.
10772 */
10773- if ((flags & MAP_SHARED) &&
10774+ if ((filp || (flags & MAP_SHARED)) &&
10775 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10776 return -EINVAL;
10777 return addr;
10778@@ -172,6 +184,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10779 if (filp || (flags & MAP_SHARED))
10780 do_color_align = 1;
10781
10782+#ifdef CONFIG_PAX_RANDMMAP
10783+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10784+#endif
10785+
10786 /* requesting a specific address */
10787 if (addr) {
10788 if (do_color_align)
10789@@ -180,8 +196,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10790 addr = PAGE_ALIGN(addr);
10791
10792 vma = find_vma(mm, addr);
10793- if (task_size - len >= addr &&
10794- (!vma || addr + len <= vma->vm_start))
10795+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10796 return addr;
10797 }
10798
10799@@ -191,6 +206,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10800 info.high_limit = mm->mmap_base;
10801 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10802 info.align_offset = pgoff << PAGE_SHIFT;
10803+ info.threadstack_offset = offset;
10804 addr = vm_unmapped_area(&info);
10805
10806 /*
10807@@ -203,6 +219,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10808 VM_BUG_ON(addr != -ENOMEM);
10809 info.flags = 0;
10810 info.low_limit = TASK_UNMAPPED_BASE;
10811+
10812+#ifdef CONFIG_PAX_RANDMMAP
10813+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10814+ info.low_limit += mm->delta_mmap;
10815+#endif
10816+
10817 info.high_limit = STACK_TOP32;
10818 addr = vm_unmapped_area(&info);
10819 }
10820@@ -259,10 +281,14 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
10821 EXPORT_SYMBOL(get_fb_unmapped_area);
10822
10823 /* Essentially the same as PowerPC. */
10824-static unsigned long mmap_rnd(void)
10825+static unsigned long mmap_rnd(struct mm_struct *mm)
10826 {
10827 unsigned long rnd = 0UL;
10828
10829+#ifdef CONFIG_PAX_RANDMMAP
10830+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10831+#endif
10832+
10833 if (current->flags & PF_RANDOMIZE) {
10834 unsigned long val = get_random_int();
10835 if (test_thread_flag(TIF_32BIT))
10836@@ -275,7 +301,7 @@ static unsigned long mmap_rnd(void)
10837
10838 void arch_pick_mmap_layout(struct mm_struct *mm)
10839 {
10840- unsigned long random_factor = mmap_rnd();
10841+ unsigned long random_factor = mmap_rnd(mm);
10842 unsigned long gap;
10843
10844 /*
10845@@ -288,6 +314,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10846 gap == RLIM_INFINITY ||
10847 sysctl_legacy_va_layout) {
10848 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
10849+
10850+#ifdef CONFIG_PAX_RANDMMAP
10851+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10852+ mm->mmap_base += mm->delta_mmap;
10853+#endif
10854+
10855 mm->get_unmapped_area = arch_get_unmapped_area;
10856 } else {
10857 /* We know it's 32-bit */
10858@@ -299,6 +331,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10859 gap = (task_size / 6 * 5);
10860
10861 mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
10862+
10863+#ifdef CONFIG_PAX_RANDMMAP
10864+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10865+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
10866+#endif
10867+
10868 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
10869 }
10870 }
10871diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
10872index bb00089..e0ea580 100644
10873--- a/arch/sparc/kernel/syscalls.S
10874+++ b/arch/sparc/kernel/syscalls.S
10875@@ -62,7 +62,7 @@ sys32_rt_sigreturn:
10876 #endif
10877 .align 32
10878 1: ldx [%g6 + TI_FLAGS], %l5
10879- andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10880+ andcc %l5, _TIF_WORK_SYSCALL, %g0
10881 be,pt %icc, rtrap
10882 nop
10883 call syscall_trace_leave
10884@@ -194,7 +194,7 @@ linux_sparc_syscall32:
10885
10886 srl %i3, 0, %o3 ! IEU0
10887 srl %i2, 0, %o2 ! IEU0 Group
10888- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10889+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10890 bne,pn %icc, linux_syscall_trace32 ! CTI
10891 mov %i0, %l5 ! IEU1
10892 5: call %l7 ! CTI Group brk forced
10893@@ -218,7 +218,7 @@ linux_sparc_syscall:
10894
10895 mov %i3, %o3 ! IEU1
10896 mov %i4, %o4 ! IEU0 Group
10897- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10898+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10899 bne,pn %icc, linux_syscall_trace ! CTI Group
10900 mov %i0, %l5 ! IEU0
10901 2: call %l7 ! CTI Group brk forced
10902@@ -233,7 +233,7 @@ ret_sys_call:
10903
10904 cmp %o0, -ERESTART_RESTARTBLOCK
10905 bgeu,pn %xcc, 1f
10906- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10907+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10908 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
10909
10910 2:
10911diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
10912index 6fd386c5..6907d81 100644
10913--- a/arch/sparc/kernel/traps_32.c
10914+++ b/arch/sparc/kernel/traps_32.c
10915@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
10916 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
10917 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
10918
10919+extern void gr_handle_kernel_exploit(void);
10920+
10921 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
10922 {
10923 static int die_counter;
10924@@ -76,15 +78,17 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
10925 count++ < 30 &&
10926 (((unsigned long) rw) >= PAGE_OFFSET) &&
10927 !(((unsigned long) rw) & 0x7)) {
10928- printk("Caller[%08lx]: %pS\n", rw->ins[7],
10929+ printk("Caller[%08lx]: %pA\n", rw->ins[7],
10930 (void *) rw->ins[7]);
10931 rw = (struct reg_window32 *)rw->ins[6];
10932 }
10933 }
10934 printk("Instruction DUMP:");
10935 instruction_dump ((unsigned long *) regs->pc);
10936- if(regs->psr & PSR_PS)
10937+ if(regs->psr & PSR_PS) {
10938+ gr_handle_kernel_exploit();
10939 do_exit(SIGKILL);
10940+ }
10941 do_exit(SIGSEGV);
10942 }
10943
10944diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
10945index 0e69974..0c15a6e 100644
10946--- a/arch/sparc/kernel/traps_64.c
10947+++ b/arch/sparc/kernel/traps_64.c
10948@@ -79,7 +79,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
10949 i + 1,
10950 p->trapstack[i].tstate, p->trapstack[i].tpc,
10951 p->trapstack[i].tnpc, p->trapstack[i].tt);
10952- printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
10953+ printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
10954 }
10955 }
10956
10957@@ -99,6 +99,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
10958
10959 lvl -= 0x100;
10960 if (regs->tstate & TSTATE_PRIV) {
10961+
10962+#ifdef CONFIG_PAX_REFCOUNT
10963+ if (lvl == 6)
10964+ pax_report_refcount_overflow(regs);
10965+#endif
10966+
10967 sprintf(buffer, "Kernel bad sw trap %lx", lvl);
10968 die_if_kernel(buffer, regs);
10969 }
10970@@ -117,11 +123,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
10971 void bad_trap_tl1(struct pt_regs *regs, long lvl)
10972 {
10973 char buffer[32];
10974-
10975+
10976 if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
10977 0, lvl, SIGTRAP) == NOTIFY_STOP)
10978 return;
10979
10980+#ifdef CONFIG_PAX_REFCOUNT
10981+ if (lvl == 6)
10982+ pax_report_refcount_overflow(regs);
10983+#endif
10984+
10985 dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
10986
10987 sprintf (buffer, "Bad trap %lx at tl>0", lvl);
10988@@ -1151,7 +1162,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
10989 regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
10990 printk("%s" "ERROR(%d): ",
10991 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
10992- printk("TPC<%pS>\n", (void *) regs->tpc);
10993+ printk("TPC<%pA>\n", (void *) regs->tpc);
10994 printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n",
10995 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
10996 (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
10997@@ -1758,7 +1769,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
10998 smp_processor_id(),
10999 (type & 0x1) ? 'I' : 'D',
11000 regs->tpc);
11001- printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
11002+ printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
11003 panic("Irrecoverable Cheetah+ parity error.");
11004 }
11005
11006@@ -1766,7 +1777,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
11007 smp_processor_id(),
11008 (type & 0x1) ? 'I' : 'D',
11009 regs->tpc);
11010- printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
11011+ printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
11012 }
11013
11014 struct sun4v_error_entry {
11015@@ -1839,8 +1850,8 @@ struct sun4v_error_entry {
11016 /*0x38*/u64 reserved_5;
11017 };
11018
11019-static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
11020-static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
11021+static atomic_unchecked_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
11022+static atomic_unchecked_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
11023
11024 static const char *sun4v_err_type_to_str(u8 type)
11025 {
11026@@ -1932,7 +1943,7 @@ static void sun4v_report_real_raddr(const char *pfx, struct pt_regs *regs)
11027 }
11028
11029 static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
11030- int cpu, const char *pfx, atomic_t *ocnt)
11031+ int cpu, const char *pfx, atomic_unchecked_t *ocnt)
11032 {
11033 u64 *raw_ptr = (u64 *) ent;
11034 u32 attrs;
11035@@ -1990,8 +2001,8 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
11036
11037 show_regs(regs);
11038
11039- if ((cnt = atomic_read(ocnt)) != 0) {
11040- atomic_set(ocnt, 0);
11041+ if ((cnt = atomic_read_unchecked(ocnt)) != 0) {
11042+ atomic_set_unchecked(ocnt, 0);
11043 wmb();
11044 printk("%s: Queue overflowed %d times.\n",
11045 pfx, cnt);
11046@@ -2048,7 +2059,7 @@ out:
11047 */
11048 void sun4v_resum_overflow(struct pt_regs *regs)
11049 {
11050- atomic_inc(&sun4v_resum_oflow_cnt);
11051+ atomic_inc_unchecked(&sun4v_resum_oflow_cnt);
11052 }
11053
11054 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
11055@@ -2101,7 +2112,7 @@ void sun4v_nonresum_overflow(struct pt_regs *regs)
11056 /* XXX Actually even this can make not that much sense. Perhaps
11057 * XXX we should just pull the plug and panic directly from here?
11058 */
11059- atomic_inc(&sun4v_nonresum_oflow_cnt);
11060+ atomic_inc_unchecked(&sun4v_nonresum_oflow_cnt);
11061 }
11062
11063 static void sun4v_tlb_error(struct pt_regs *regs)
11064@@ -2120,9 +2131,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
11065
11066 printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
11067 regs->tpc, tl);
11068- printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
11069+ printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
11070 printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
11071- printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
11072+ printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
11073 (void *) regs->u_regs[UREG_I7]);
11074 printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
11075 "pte[%lx] error[%lx]\n",
11076@@ -2143,9 +2154,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
11077
11078 printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
11079 regs->tpc, tl);
11080- printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
11081+ printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
11082 printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
11083- printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
11084+ printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
11085 (void *) regs->u_regs[UREG_I7]);
11086 printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
11087 "pte[%lx] error[%lx]\n",
11088@@ -2362,13 +2373,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
11089 fp = (unsigned long)sf->fp + STACK_BIAS;
11090 }
11091
11092- printk(" [%016lx] %pS\n", pc, (void *) pc);
11093+ printk(" [%016lx] %pA\n", pc, (void *) pc);
11094 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
11095 if ((pc + 8UL) == (unsigned long) &return_to_handler) {
11096 int index = tsk->curr_ret_stack;
11097 if (tsk->ret_stack && index >= graph) {
11098 pc = tsk->ret_stack[index - graph].ret;
11099- printk(" [%016lx] %pS\n", pc, (void *) pc);
11100+ printk(" [%016lx] %pA\n", pc, (void *) pc);
11101 graph++;
11102 }
11103 }
11104@@ -2386,6 +2397,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
11105 return (struct reg_window *) (fp + STACK_BIAS);
11106 }
11107
11108+extern void gr_handle_kernel_exploit(void);
11109+
11110 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11111 {
11112 static int die_counter;
11113@@ -2414,7 +2427,7 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11114 while (rw &&
11115 count++ < 30 &&
11116 kstack_valid(tp, (unsigned long) rw)) {
11117- printk("Caller[%016lx]: %pS\n", rw->ins[7],
11118+ printk("Caller[%016lx]: %pA\n", rw->ins[7],
11119 (void *) rw->ins[7]);
11120
11121 rw = kernel_stack_up(rw);
11122@@ -2429,8 +2442,10 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11123 }
11124 if (panic_on_oops)
11125 panic("Fatal exception");
11126- if (regs->tstate & TSTATE_PRIV)
11127+ if (regs->tstate & TSTATE_PRIV) {
11128+ gr_handle_kernel_exploit();
11129 do_exit(SIGKILL);
11130+ }
11131 do_exit(SIGSEGV);
11132 }
11133 EXPORT_SYMBOL(die_if_kernel);
11134diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
11135index 62098a8..547ab2c 100644
11136--- a/arch/sparc/kernel/unaligned_64.c
11137+++ b/arch/sparc/kernel/unaligned_64.c
11138@@ -297,7 +297,7 @@ static void log_unaligned(struct pt_regs *regs)
11139 static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
11140
11141 if (__ratelimit(&ratelimit)) {
11142- printk("Kernel unaligned access at TPC[%lx] %pS\n",
11143+ printk("Kernel unaligned access at TPC[%lx] %pA\n",
11144 regs->tpc, (void *) regs->tpc);
11145 }
11146 }
11147diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
11148index 3269b02..64f5231 100644
11149--- a/arch/sparc/lib/Makefile
11150+++ b/arch/sparc/lib/Makefile
11151@@ -2,7 +2,7 @@
11152 #
11153
11154 asflags-y := -ansi -DST_DIV0=0x02
11155-ccflags-y := -Werror
11156+#ccflags-y := -Werror
11157
11158 lib-$(CONFIG_SPARC32) += ashrdi3.o
11159 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
11160diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
11161index 05dac43..76f8ed4 100644
11162--- a/arch/sparc/lib/atomic_64.S
11163+++ b/arch/sparc/lib/atomic_64.S
11164@@ -15,11 +15,22 @@
11165 * a value and does the barriers.
11166 */
11167
11168-#define ATOMIC_OP(op) \
11169-ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11170+#ifdef CONFIG_PAX_REFCOUNT
11171+#define __REFCOUNT_OP(op) op##cc
11172+#define __OVERFLOW_IOP tvs %icc, 6;
11173+#define __OVERFLOW_XOP tvs %xcc, 6;
11174+#else
11175+#define __REFCOUNT_OP(op) op
11176+#define __OVERFLOW_IOP
11177+#define __OVERFLOW_XOP
11178+#endif
11179+
11180+#define __ATOMIC_OP(op, suffix, asm_op, post_op) \
11181+ENTRY(atomic_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */ \
11182 BACKOFF_SETUP(%o2); \
11183 1: lduw [%o1], %g1; \
11184- op %g1, %o0, %g7; \
11185+ asm_op %g1, %o0, %g7; \
11186+ post_op \
11187 cas [%o1], %g1, %g7; \
11188 cmp %g1, %g7; \
11189 bne,pn %icc, BACKOFF_LABEL(2f, 1b); \
11190@@ -29,11 +40,15 @@ ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11191 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11192 ENDPROC(atomic_##op); \
11193
11194-#define ATOMIC_OP_RETURN(op) \
11195-ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11196+#define ATOMIC_OP(op) __ATOMIC_OP(op, , op, ) \
11197+ __ATOMIC_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
11198+
11199+#define __ATOMIC_OP_RETURN(op, suffix, asm_op, post_op) \
11200+ENTRY(atomic_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
11201 BACKOFF_SETUP(%o2); \
11202 1: lduw [%o1], %g1; \
11203- op %g1, %o0, %g7; \
11204+ asm_op %g1, %o0, %g7; \
11205+ post_op \
11206 cas [%o1], %g1, %g7; \
11207 cmp %g1, %g7; \
11208 bne,pn %icc, BACKOFF_LABEL(2f, 1b); \
11209@@ -43,6 +58,9 @@ ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11210 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11211 ENDPROC(atomic_##op##_return);
11212
11213+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, , op, ) \
11214+ __ATOMIC_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
11215+
11216 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
11217
11218 ATOMIC_OPS(add)
11219@@ -50,13 +68,16 @@ ATOMIC_OPS(sub)
11220
11221 #undef ATOMIC_OPS
11222 #undef ATOMIC_OP_RETURN
11223+#undef __ATOMIC_OP_RETURN
11224 #undef ATOMIC_OP
11225+#undef __ATOMIC_OP
11226
11227-#define ATOMIC64_OP(op) \
11228-ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11229+#define __ATOMIC64_OP(op, suffix, asm_op, post_op) \
11230+ENTRY(atomic64_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */ \
11231 BACKOFF_SETUP(%o2); \
11232 1: ldx [%o1], %g1; \
11233- op %g1, %o0, %g7; \
11234+ asm_op %g1, %o0, %g7; \
11235+ post_op \
11236 casx [%o1], %g1, %g7; \
11237 cmp %g1, %g7; \
11238 bne,pn %xcc, BACKOFF_LABEL(2f, 1b); \
11239@@ -66,11 +87,15 @@ ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11240 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11241 ENDPROC(atomic64_##op); \
11242
11243-#define ATOMIC64_OP_RETURN(op) \
11244-ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11245+#define ATOMIC64_OP(op) __ATOMIC64_OP(op, , op, ) \
11246+ __ATOMIC64_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
11247+
11248+#define __ATOMIC64_OP_RETURN(op, suffix, asm_op, post_op) \
11249+ENTRY(atomic64_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
11250 BACKOFF_SETUP(%o2); \
11251 1: ldx [%o1], %g1; \
11252- op %g1, %o0, %g7; \
11253+ asm_op %g1, %o0, %g7; \
11254+ post_op \
11255 casx [%o1], %g1, %g7; \
11256 cmp %g1, %g7; \
11257 bne,pn %xcc, BACKOFF_LABEL(2f, 1b); \
11258@@ -80,6 +105,9 @@ ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11259 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11260 ENDPROC(atomic64_##op##_return);
11261
11262+#define ATOMIC64_OP_RETURN(op) __ATOMIC64_OP_RETURN(op, , op, ) \
11263+i __ATOMIC64_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
11264+
11265 #define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op)
11266
11267 ATOMIC64_OPS(add)
11268@@ -87,7 +115,12 @@ ATOMIC64_OPS(sub)
11269
11270 #undef ATOMIC64_OPS
11271 #undef ATOMIC64_OP_RETURN
11272+#undef __ATOMIC64_OP_RETURN
11273 #undef ATOMIC64_OP
11274+#undef __ATOMIC64_OP
11275+#undef __OVERFLOW_XOP
11276+#undef __OVERFLOW_IOP
11277+#undef __REFCOUNT_OP
11278
11279 ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
11280 BACKOFF_SETUP(%o2)
11281diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
11282index 1d649a9..fbc5bfc 100644
11283--- a/arch/sparc/lib/ksyms.c
11284+++ b/arch/sparc/lib/ksyms.c
11285@@ -101,7 +101,9 @@ EXPORT_SYMBOL(__clear_user);
11286 /* Atomic counter implementation. */
11287 #define ATOMIC_OP(op) \
11288 EXPORT_SYMBOL(atomic_##op); \
11289-EXPORT_SYMBOL(atomic64_##op);
11290+EXPORT_SYMBOL(atomic_##op##_unchecked); \
11291+EXPORT_SYMBOL(atomic64_##op); \
11292+EXPORT_SYMBOL(atomic64_##op##_unchecked);
11293
11294 #define ATOMIC_OP_RETURN(op) \
11295 EXPORT_SYMBOL(atomic_##op##_return); \
11296@@ -110,6 +112,8 @@ EXPORT_SYMBOL(atomic64_##op##_return);
11297 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
11298
11299 ATOMIC_OPS(add)
11300+EXPORT_SYMBOL(atomic_add_ret_unchecked);
11301+EXPORT_SYMBOL(atomic64_add_ret_unchecked);
11302 ATOMIC_OPS(sub)
11303
11304 #undef ATOMIC_OPS
11305diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
11306index 30c3ecc..736f015 100644
11307--- a/arch/sparc/mm/Makefile
11308+++ b/arch/sparc/mm/Makefile
11309@@ -2,7 +2,7 @@
11310 #
11311
11312 asflags-y := -ansi
11313-ccflags-y := -Werror
11314+#ccflags-y := -Werror
11315
11316 obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o
11317 obj-y += fault_$(BITS).o
11318diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
11319index 70d8171..274c6c0 100644
11320--- a/arch/sparc/mm/fault_32.c
11321+++ b/arch/sparc/mm/fault_32.c
11322@@ -21,6 +21,9 @@
11323 #include <linux/perf_event.h>
11324 #include <linux/interrupt.h>
11325 #include <linux/kdebug.h>
11326+#include <linux/slab.h>
11327+#include <linux/pagemap.h>
11328+#include <linux/compiler.h>
11329
11330 #include <asm/page.h>
11331 #include <asm/pgtable.h>
11332@@ -156,6 +159,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
11333 return safe_compute_effective_address(regs, insn);
11334 }
11335
11336+#ifdef CONFIG_PAX_PAGEEXEC
11337+#ifdef CONFIG_PAX_DLRESOLVE
11338+static void pax_emuplt_close(struct vm_area_struct *vma)
11339+{
11340+ vma->vm_mm->call_dl_resolve = 0UL;
11341+}
11342+
11343+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11344+{
11345+ unsigned int *kaddr;
11346+
11347+ vmf->page = alloc_page(GFP_HIGHUSER);
11348+ if (!vmf->page)
11349+ return VM_FAULT_OOM;
11350+
11351+ kaddr = kmap(vmf->page);
11352+ memset(kaddr, 0, PAGE_SIZE);
11353+ kaddr[0] = 0x9DE3BFA8U; /* save */
11354+ flush_dcache_page(vmf->page);
11355+ kunmap(vmf->page);
11356+ return VM_FAULT_MAJOR;
11357+}
11358+
11359+static const struct vm_operations_struct pax_vm_ops = {
11360+ .close = pax_emuplt_close,
11361+ .fault = pax_emuplt_fault
11362+};
11363+
11364+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11365+{
11366+ int ret;
11367+
11368+ INIT_LIST_HEAD(&vma->anon_vma_chain);
11369+ vma->vm_mm = current->mm;
11370+ vma->vm_start = addr;
11371+ vma->vm_end = addr + PAGE_SIZE;
11372+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11373+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11374+ vma->vm_ops = &pax_vm_ops;
11375+
11376+ ret = insert_vm_struct(current->mm, vma);
11377+ if (ret)
11378+ return ret;
11379+
11380+ ++current->mm->total_vm;
11381+ return 0;
11382+}
11383+#endif
11384+
11385+/*
11386+ * PaX: decide what to do with offenders (regs->pc = fault address)
11387+ *
11388+ * returns 1 when task should be killed
11389+ * 2 when patched PLT trampoline was detected
11390+ * 3 when unpatched PLT trampoline was detected
11391+ */
11392+static int pax_handle_fetch_fault(struct pt_regs *regs)
11393+{
11394+
11395+#ifdef CONFIG_PAX_EMUPLT
11396+ int err;
11397+
11398+ do { /* PaX: patched PLT emulation #1 */
11399+ unsigned int sethi1, sethi2, jmpl;
11400+
11401+ err = get_user(sethi1, (unsigned int *)regs->pc);
11402+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
11403+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
11404+
11405+ if (err)
11406+ break;
11407+
11408+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11409+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
11410+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
11411+ {
11412+ unsigned int addr;
11413+
11414+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11415+ addr = regs->u_regs[UREG_G1];
11416+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11417+ regs->pc = addr;
11418+ regs->npc = addr+4;
11419+ return 2;
11420+ }
11421+ } while (0);
11422+
11423+ do { /* PaX: patched PLT emulation #2 */
11424+ unsigned int ba;
11425+
11426+ err = get_user(ba, (unsigned int *)regs->pc);
11427+
11428+ if (err)
11429+ break;
11430+
11431+ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11432+ unsigned int addr;
11433+
11434+ if ((ba & 0xFFC00000U) == 0x30800000U)
11435+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11436+ else
11437+ addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11438+ regs->pc = addr;
11439+ regs->npc = addr+4;
11440+ return 2;
11441+ }
11442+ } while (0);
11443+
11444+ do { /* PaX: patched PLT emulation #3 */
11445+ unsigned int sethi, bajmpl, nop;
11446+
11447+ err = get_user(sethi, (unsigned int *)regs->pc);
11448+ err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
11449+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
11450+
11451+ if (err)
11452+ break;
11453+
11454+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11455+ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11456+ nop == 0x01000000U)
11457+ {
11458+ unsigned int addr;
11459+
11460+ addr = (sethi & 0x003FFFFFU) << 10;
11461+ regs->u_regs[UREG_G1] = addr;
11462+ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11463+ addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11464+ else
11465+ addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11466+ regs->pc = addr;
11467+ regs->npc = addr+4;
11468+ return 2;
11469+ }
11470+ } while (0);
11471+
11472+ do { /* PaX: unpatched PLT emulation step 1 */
11473+ unsigned int sethi, ba, nop;
11474+
11475+ err = get_user(sethi, (unsigned int *)regs->pc);
11476+ err |= get_user(ba, (unsigned int *)(regs->pc+4));
11477+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
11478+
11479+ if (err)
11480+ break;
11481+
11482+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11483+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11484+ nop == 0x01000000U)
11485+ {
11486+ unsigned int addr, save, call;
11487+
11488+ if ((ba & 0xFFC00000U) == 0x30800000U)
11489+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11490+ else
11491+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11492+
11493+ err = get_user(save, (unsigned int *)addr);
11494+ err |= get_user(call, (unsigned int *)(addr+4));
11495+ err |= get_user(nop, (unsigned int *)(addr+8));
11496+ if (err)
11497+ break;
11498+
11499+#ifdef CONFIG_PAX_DLRESOLVE
11500+ if (save == 0x9DE3BFA8U &&
11501+ (call & 0xC0000000U) == 0x40000000U &&
11502+ nop == 0x01000000U)
11503+ {
11504+ struct vm_area_struct *vma;
11505+ unsigned long call_dl_resolve;
11506+
11507+ down_read(&current->mm->mmap_sem);
11508+ call_dl_resolve = current->mm->call_dl_resolve;
11509+ up_read(&current->mm->mmap_sem);
11510+ if (likely(call_dl_resolve))
11511+ goto emulate;
11512+
11513+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11514+
11515+ down_write(&current->mm->mmap_sem);
11516+ if (current->mm->call_dl_resolve) {
11517+ call_dl_resolve = current->mm->call_dl_resolve;
11518+ up_write(&current->mm->mmap_sem);
11519+ if (vma)
11520+ kmem_cache_free(vm_area_cachep, vma);
11521+ goto emulate;
11522+ }
11523+
11524+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11525+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11526+ up_write(&current->mm->mmap_sem);
11527+ if (vma)
11528+ kmem_cache_free(vm_area_cachep, vma);
11529+ return 1;
11530+ }
11531+
11532+ if (pax_insert_vma(vma, call_dl_resolve)) {
11533+ up_write(&current->mm->mmap_sem);
11534+ kmem_cache_free(vm_area_cachep, vma);
11535+ return 1;
11536+ }
11537+
11538+ current->mm->call_dl_resolve = call_dl_resolve;
11539+ up_write(&current->mm->mmap_sem);
11540+
11541+emulate:
11542+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11543+ regs->pc = call_dl_resolve;
11544+ regs->npc = addr+4;
11545+ return 3;
11546+ }
11547+#endif
11548+
11549+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
11550+ if ((save & 0xFFC00000U) == 0x05000000U &&
11551+ (call & 0xFFFFE000U) == 0x85C0A000U &&
11552+ nop == 0x01000000U)
11553+ {
11554+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11555+ regs->u_regs[UREG_G2] = addr + 4;
11556+ addr = (save & 0x003FFFFFU) << 10;
11557+ addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11558+ regs->pc = addr;
11559+ regs->npc = addr+4;
11560+ return 3;
11561+ }
11562+ }
11563+ } while (0);
11564+
11565+ do { /* PaX: unpatched PLT emulation step 2 */
11566+ unsigned int save, call, nop;
11567+
11568+ err = get_user(save, (unsigned int *)(regs->pc-4));
11569+ err |= get_user(call, (unsigned int *)regs->pc);
11570+ err |= get_user(nop, (unsigned int *)(regs->pc+4));
11571+ if (err)
11572+ break;
11573+
11574+ if (save == 0x9DE3BFA8U &&
11575+ (call & 0xC0000000U) == 0x40000000U &&
11576+ nop == 0x01000000U)
11577+ {
11578+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
11579+
11580+ regs->u_regs[UREG_RETPC] = regs->pc;
11581+ regs->pc = dl_resolve;
11582+ regs->npc = dl_resolve+4;
11583+ return 3;
11584+ }
11585+ } while (0);
11586+#endif
11587+
11588+ return 1;
11589+}
11590+
11591+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
11592+{
11593+ unsigned long i;
11594+
11595+ printk(KERN_ERR "PAX: bytes at PC: ");
11596+ for (i = 0; i < 8; i++) {
11597+ unsigned int c;
11598+ if (get_user(c, (unsigned int *)pc+i))
11599+ printk(KERN_CONT "???????? ");
11600+ else
11601+ printk(KERN_CONT "%08x ", c);
11602+ }
11603+ printk("\n");
11604+}
11605+#endif
11606+
11607 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
11608 int text_fault)
11609 {
11610@@ -226,6 +500,24 @@ good_area:
11611 if (!(vma->vm_flags & VM_WRITE))
11612 goto bad_area;
11613 } else {
11614+
11615+#ifdef CONFIG_PAX_PAGEEXEC
11616+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
11617+ up_read(&mm->mmap_sem);
11618+ switch (pax_handle_fetch_fault(regs)) {
11619+
11620+#ifdef CONFIG_PAX_EMUPLT
11621+ case 2:
11622+ case 3:
11623+ return;
11624+#endif
11625+
11626+ }
11627+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
11628+ do_group_exit(SIGKILL);
11629+ }
11630+#endif
11631+
11632 /* Allow reads even for write-only mappings */
11633 if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
11634 goto bad_area;
11635diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
11636index 4798232..f76e3aa 100644
11637--- a/arch/sparc/mm/fault_64.c
11638+++ b/arch/sparc/mm/fault_64.c
11639@@ -22,6 +22,9 @@
11640 #include <linux/kdebug.h>
11641 #include <linux/percpu.h>
11642 #include <linux/context_tracking.h>
11643+#include <linux/slab.h>
11644+#include <linux/pagemap.h>
11645+#include <linux/compiler.h>
11646
11647 #include <asm/page.h>
11648 #include <asm/pgtable.h>
11649@@ -76,7 +79,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
11650 printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
11651 regs->tpc);
11652 printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
11653- printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
11654+ printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
11655 printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
11656 dump_stack();
11657 unhandled_fault(regs->tpc, current, regs);
11658@@ -279,6 +282,466 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
11659 show_regs(regs);
11660 }
11661
11662+#ifdef CONFIG_PAX_PAGEEXEC
11663+#ifdef CONFIG_PAX_DLRESOLVE
11664+static void pax_emuplt_close(struct vm_area_struct *vma)
11665+{
11666+ vma->vm_mm->call_dl_resolve = 0UL;
11667+}
11668+
11669+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11670+{
11671+ unsigned int *kaddr;
11672+
11673+ vmf->page = alloc_page(GFP_HIGHUSER);
11674+ if (!vmf->page)
11675+ return VM_FAULT_OOM;
11676+
11677+ kaddr = kmap(vmf->page);
11678+ memset(kaddr, 0, PAGE_SIZE);
11679+ kaddr[0] = 0x9DE3BFA8U; /* save */
11680+ flush_dcache_page(vmf->page);
11681+ kunmap(vmf->page);
11682+ return VM_FAULT_MAJOR;
11683+}
11684+
11685+static const struct vm_operations_struct pax_vm_ops = {
11686+ .close = pax_emuplt_close,
11687+ .fault = pax_emuplt_fault
11688+};
11689+
11690+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11691+{
11692+ int ret;
11693+
11694+ INIT_LIST_HEAD(&vma->anon_vma_chain);
11695+ vma->vm_mm = current->mm;
11696+ vma->vm_start = addr;
11697+ vma->vm_end = addr + PAGE_SIZE;
11698+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11699+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11700+ vma->vm_ops = &pax_vm_ops;
11701+
11702+ ret = insert_vm_struct(current->mm, vma);
11703+ if (ret)
11704+ return ret;
11705+
11706+ ++current->mm->total_vm;
11707+ return 0;
11708+}
11709+#endif
11710+
11711+/*
11712+ * PaX: decide what to do with offenders (regs->tpc = fault address)
11713+ *
11714+ * returns 1 when task should be killed
11715+ * 2 when patched PLT trampoline was detected
11716+ * 3 when unpatched PLT trampoline was detected
11717+ */
11718+static int pax_handle_fetch_fault(struct pt_regs *regs)
11719+{
11720+
11721+#ifdef CONFIG_PAX_EMUPLT
11722+ int err;
11723+
11724+ do { /* PaX: patched PLT emulation #1 */
11725+ unsigned int sethi1, sethi2, jmpl;
11726+
11727+ err = get_user(sethi1, (unsigned int *)regs->tpc);
11728+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
11729+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
11730+
11731+ if (err)
11732+ break;
11733+
11734+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11735+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
11736+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
11737+ {
11738+ unsigned long addr;
11739+
11740+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11741+ addr = regs->u_regs[UREG_G1];
11742+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11743+
11744+ if (test_thread_flag(TIF_32BIT))
11745+ addr &= 0xFFFFFFFFUL;
11746+
11747+ regs->tpc = addr;
11748+ regs->tnpc = addr+4;
11749+ return 2;
11750+ }
11751+ } while (0);
11752+
11753+ do { /* PaX: patched PLT emulation #2 */
11754+ unsigned int ba;
11755+
11756+ err = get_user(ba, (unsigned int *)regs->tpc);
11757+
11758+ if (err)
11759+ break;
11760+
11761+ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11762+ unsigned long addr;
11763+
11764+ if ((ba & 0xFFC00000U) == 0x30800000U)
11765+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11766+ else
11767+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11768+
11769+ if (test_thread_flag(TIF_32BIT))
11770+ addr &= 0xFFFFFFFFUL;
11771+
11772+ regs->tpc = addr;
11773+ regs->tnpc = addr+4;
11774+ return 2;
11775+ }
11776+ } while (0);
11777+
11778+ do { /* PaX: patched PLT emulation #3 */
11779+ unsigned int sethi, bajmpl, nop;
11780+
11781+ err = get_user(sethi, (unsigned int *)regs->tpc);
11782+ err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
11783+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11784+
11785+ if (err)
11786+ break;
11787+
11788+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11789+ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11790+ nop == 0x01000000U)
11791+ {
11792+ unsigned long addr;
11793+
11794+ addr = (sethi & 0x003FFFFFU) << 10;
11795+ regs->u_regs[UREG_G1] = addr;
11796+ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11797+ addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11798+ else
11799+ addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11800+
11801+ if (test_thread_flag(TIF_32BIT))
11802+ addr &= 0xFFFFFFFFUL;
11803+
11804+ regs->tpc = addr;
11805+ regs->tnpc = addr+4;
11806+ return 2;
11807+ }
11808+ } while (0);
11809+
11810+ do { /* PaX: patched PLT emulation #4 */
11811+ unsigned int sethi, mov1, call, mov2;
11812+
11813+ err = get_user(sethi, (unsigned int *)regs->tpc);
11814+ err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
11815+ err |= get_user(call, (unsigned int *)(regs->tpc+8));
11816+ err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
11817+
11818+ if (err)
11819+ break;
11820+
11821+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11822+ mov1 == 0x8210000FU &&
11823+ (call & 0xC0000000U) == 0x40000000U &&
11824+ mov2 == 0x9E100001U)
11825+ {
11826+ unsigned long addr;
11827+
11828+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
11829+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
11830+
11831+ if (test_thread_flag(TIF_32BIT))
11832+ addr &= 0xFFFFFFFFUL;
11833+
11834+ regs->tpc = addr;
11835+ regs->tnpc = addr+4;
11836+ return 2;
11837+ }
11838+ } while (0);
11839+
11840+ do { /* PaX: patched PLT emulation #5 */
11841+ unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
11842+
11843+ err = get_user(sethi, (unsigned int *)regs->tpc);
11844+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11845+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11846+ err |= get_user(or1, (unsigned int *)(regs->tpc+12));
11847+ err |= get_user(or2, (unsigned int *)(regs->tpc+16));
11848+ err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
11849+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
11850+ err |= get_user(nop, (unsigned int *)(regs->tpc+28));
11851+
11852+ if (err)
11853+ break;
11854+
11855+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11856+ (sethi1 & 0xFFC00000U) == 0x03000000U &&
11857+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11858+ (or1 & 0xFFFFE000U) == 0x82106000U &&
11859+ (or2 & 0xFFFFE000U) == 0x8A116000U &&
11860+ sllx == 0x83287020U &&
11861+ jmpl == 0x81C04005U &&
11862+ nop == 0x01000000U)
11863+ {
11864+ unsigned long addr;
11865+
11866+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
11867+ regs->u_regs[UREG_G1] <<= 32;
11868+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
11869+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11870+ regs->tpc = addr;
11871+ regs->tnpc = addr+4;
11872+ return 2;
11873+ }
11874+ } while (0);
11875+
11876+ do { /* PaX: patched PLT emulation #6 */
11877+ unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop;
11878+
11879+ err = get_user(sethi, (unsigned int *)regs->tpc);
11880+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11881+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11882+ err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
11883+ err |= get_user(or, (unsigned int *)(regs->tpc+16));
11884+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
11885+ err |= get_user(nop, (unsigned int *)(regs->tpc+24));
11886+
11887+ if (err)
11888+ break;
11889+
11890+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11891+ (sethi1 & 0xFFC00000U) == 0x03000000U &&
11892+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11893+ sllx == 0x83287020U &&
11894+ (or & 0xFFFFE000U) == 0x8A116000U &&
11895+ jmpl == 0x81C04005U &&
11896+ nop == 0x01000000U)
11897+ {
11898+ unsigned long addr;
11899+
11900+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
11901+ regs->u_regs[UREG_G1] <<= 32;
11902+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
11903+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11904+ regs->tpc = addr;
11905+ regs->tnpc = addr+4;
11906+ return 2;
11907+ }
11908+ } while (0);
11909+
11910+ do { /* PaX: unpatched PLT emulation step 1 */
11911+ unsigned int sethi, ba, nop;
11912+
11913+ err = get_user(sethi, (unsigned int *)regs->tpc);
11914+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
11915+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11916+
11917+ if (err)
11918+ break;
11919+
11920+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11921+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11922+ nop == 0x01000000U)
11923+ {
11924+ unsigned long addr;
11925+ unsigned int save, call;
11926+ unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
11927+
11928+ if ((ba & 0xFFC00000U) == 0x30800000U)
11929+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11930+ else
11931+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11932+
11933+ if (test_thread_flag(TIF_32BIT))
11934+ addr &= 0xFFFFFFFFUL;
11935+
11936+ err = get_user(save, (unsigned int *)addr);
11937+ err |= get_user(call, (unsigned int *)(addr+4));
11938+ err |= get_user(nop, (unsigned int *)(addr+8));
11939+ if (err)
11940+ break;
11941+
11942+#ifdef CONFIG_PAX_DLRESOLVE
11943+ if (save == 0x9DE3BFA8U &&
11944+ (call & 0xC0000000U) == 0x40000000U &&
11945+ nop == 0x01000000U)
11946+ {
11947+ struct vm_area_struct *vma;
11948+ unsigned long call_dl_resolve;
11949+
11950+ down_read(&current->mm->mmap_sem);
11951+ call_dl_resolve = current->mm->call_dl_resolve;
11952+ up_read(&current->mm->mmap_sem);
11953+ if (likely(call_dl_resolve))
11954+ goto emulate;
11955+
11956+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11957+
11958+ down_write(&current->mm->mmap_sem);
11959+ if (current->mm->call_dl_resolve) {
11960+ call_dl_resolve = current->mm->call_dl_resolve;
11961+ up_write(&current->mm->mmap_sem);
11962+ if (vma)
11963+ kmem_cache_free(vm_area_cachep, vma);
11964+ goto emulate;
11965+ }
11966+
11967+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11968+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11969+ up_write(&current->mm->mmap_sem);
11970+ if (vma)
11971+ kmem_cache_free(vm_area_cachep, vma);
11972+ return 1;
11973+ }
11974+
11975+ if (pax_insert_vma(vma, call_dl_resolve)) {
11976+ up_write(&current->mm->mmap_sem);
11977+ kmem_cache_free(vm_area_cachep, vma);
11978+ return 1;
11979+ }
11980+
11981+ current->mm->call_dl_resolve = call_dl_resolve;
11982+ up_write(&current->mm->mmap_sem);
11983+
11984+emulate:
11985+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11986+ regs->tpc = call_dl_resolve;
11987+ regs->tnpc = addr+4;
11988+ return 3;
11989+ }
11990+#endif
11991+
11992+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
11993+ if ((save & 0xFFC00000U) == 0x05000000U &&
11994+ (call & 0xFFFFE000U) == 0x85C0A000U &&
11995+ nop == 0x01000000U)
11996+ {
11997+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11998+ regs->u_regs[UREG_G2] = addr + 4;
11999+ addr = (save & 0x003FFFFFU) << 10;
12000+ addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
12001+
12002+ if (test_thread_flag(TIF_32BIT))
12003+ addr &= 0xFFFFFFFFUL;
12004+
12005+ regs->tpc = addr;
12006+ regs->tnpc = addr+4;
12007+ return 3;
12008+ }
12009+
12010+ /* PaX: 64-bit PLT stub */
12011+ err = get_user(sethi1, (unsigned int *)addr);
12012+ err |= get_user(sethi2, (unsigned int *)(addr+4));
12013+ err |= get_user(or1, (unsigned int *)(addr+8));
12014+ err |= get_user(or2, (unsigned int *)(addr+12));
12015+ err |= get_user(sllx, (unsigned int *)(addr+16));
12016+ err |= get_user(add, (unsigned int *)(addr+20));
12017+ err |= get_user(jmpl, (unsigned int *)(addr+24));
12018+ err |= get_user(nop, (unsigned int *)(addr+28));
12019+ if (err)
12020+ break;
12021+
12022+ if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
12023+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
12024+ (or1 & 0xFFFFE000U) == 0x88112000U &&
12025+ (or2 & 0xFFFFE000U) == 0x8A116000U &&
12026+ sllx == 0x89293020U &&
12027+ add == 0x8A010005U &&
12028+ jmpl == 0x89C14000U &&
12029+ nop == 0x01000000U)
12030+ {
12031+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
12032+ regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
12033+ regs->u_regs[UREG_G4] <<= 32;
12034+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
12035+ regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
12036+ regs->u_regs[UREG_G4] = addr + 24;
12037+ addr = regs->u_regs[UREG_G5];
12038+ regs->tpc = addr;
12039+ regs->tnpc = addr+4;
12040+ return 3;
12041+ }
12042+ }
12043+ } while (0);
12044+
12045+#ifdef CONFIG_PAX_DLRESOLVE
12046+ do { /* PaX: unpatched PLT emulation step 2 */
12047+ unsigned int save, call, nop;
12048+
12049+ err = get_user(save, (unsigned int *)(regs->tpc-4));
12050+ err |= get_user(call, (unsigned int *)regs->tpc);
12051+ err |= get_user(nop, (unsigned int *)(regs->tpc+4));
12052+ if (err)
12053+ break;
12054+
12055+ if (save == 0x9DE3BFA8U &&
12056+ (call & 0xC0000000U) == 0x40000000U &&
12057+ nop == 0x01000000U)
12058+ {
12059+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
12060+
12061+ if (test_thread_flag(TIF_32BIT))
12062+ dl_resolve &= 0xFFFFFFFFUL;
12063+
12064+ regs->u_regs[UREG_RETPC] = regs->tpc;
12065+ regs->tpc = dl_resolve;
12066+ regs->tnpc = dl_resolve+4;
12067+ return 3;
12068+ }
12069+ } while (0);
12070+#endif
12071+
12072+ do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
12073+ unsigned int sethi, ba, nop;
12074+
12075+ err = get_user(sethi, (unsigned int *)regs->tpc);
12076+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
12077+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
12078+
12079+ if (err)
12080+ break;
12081+
12082+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
12083+ (ba & 0xFFF00000U) == 0x30600000U &&
12084+ nop == 0x01000000U)
12085+ {
12086+ unsigned long addr;
12087+
12088+ addr = (sethi & 0x003FFFFFU) << 10;
12089+ regs->u_regs[UREG_G1] = addr;
12090+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
12091+
12092+ if (test_thread_flag(TIF_32BIT))
12093+ addr &= 0xFFFFFFFFUL;
12094+
12095+ regs->tpc = addr;
12096+ regs->tnpc = addr+4;
12097+ return 2;
12098+ }
12099+ } while (0);
12100+
12101+#endif
12102+
12103+ return 1;
12104+}
12105+
12106+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
12107+{
12108+ unsigned long i;
12109+
12110+ printk(KERN_ERR "PAX: bytes at PC: ");
12111+ for (i = 0; i < 8; i++) {
12112+ unsigned int c;
12113+ if (get_user(c, (unsigned int *)pc+i))
12114+ printk(KERN_CONT "???????? ");
12115+ else
12116+ printk(KERN_CONT "%08x ", c);
12117+ }
12118+ printk("\n");
12119+}
12120+#endif
12121+
12122 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
12123 {
12124 enum ctx_state prev_state = exception_enter();
12125@@ -353,6 +816,29 @@ retry:
12126 if (!vma)
12127 goto bad_area;
12128
12129+#ifdef CONFIG_PAX_PAGEEXEC
12130+ /* PaX: detect ITLB misses on non-exec pages */
12131+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
12132+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
12133+ {
12134+ if (address != regs->tpc)
12135+ goto good_area;
12136+
12137+ up_read(&mm->mmap_sem);
12138+ switch (pax_handle_fetch_fault(regs)) {
12139+
12140+#ifdef CONFIG_PAX_EMUPLT
12141+ case 2:
12142+ case 3:
12143+ return;
12144+#endif
12145+
12146+ }
12147+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
12148+ do_group_exit(SIGKILL);
12149+ }
12150+#endif
12151+
12152 /* Pure DTLB misses do not tell us whether the fault causing
12153 * load/store/atomic was a write or not, it only says that there
12154 * was no match. So in such a case we (carefully) read the
12155diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
12156index 4242eab..9ae6360 100644
12157--- a/arch/sparc/mm/hugetlbpage.c
12158+++ b/arch/sparc/mm/hugetlbpage.c
12159@@ -25,8 +25,10 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
12160 unsigned long addr,
12161 unsigned long len,
12162 unsigned long pgoff,
12163- unsigned long flags)
12164+ unsigned long flags,
12165+ unsigned long offset)
12166 {
12167+ struct mm_struct *mm = current->mm;
12168 unsigned long task_size = TASK_SIZE;
12169 struct vm_unmapped_area_info info;
12170
12171@@ -35,15 +37,22 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
12172
12173 info.flags = 0;
12174 info.length = len;
12175- info.low_limit = TASK_UNMAPPED_BASE;
12176+ info.low_limit = mm->mmap_base;
12177 info.high_limit = min(task_size, VA_EXCLUDE_START);
12178 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
12179 info.align_offset = 0;
12180+ info.threadstack_offset = offset;
12181 addr = vm_unmapped_area(&info);
12182
12183 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
12184 VM_BUG_ON(addr != -ENOMEM);
12185 info.low_limit = VA_EXCLUDE_END;
12186+
12187+#ifdef CONFIG_PAX_RANDMMAP
12188+ if (mm->pax_flags & MF_PAX_RANDMMAP)
12189+ info.low_limit += mm->delta_mmap;
12190+#endif
12191+
12192 info.high_limit = task_size;
12193 addr = vm_unmapped_area(&info);
12194 }
12195@@ -55,7 +64,8 @@ static unsigned long
12196 hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12197 const unsigned long len,
12198 const unsigned long pgoff,
12199- const unsigned long flags)
12200+ const unsigned long flags,
12201+ const unsigned long offset)
12202 {
12203 struct mm_struct *mm = current->mm;
12204 unsigned long addr = addr0;
12205@@ -70,6 +80,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12206 info.high_limit = mm->mmap_base;
12207 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
12208 info.align_offset = 0;
12209+ info.threadstack_offset = offset;
12210 addr = vm_unmapped_area(&info);
12211
12212 /*
12213@@ -82,6 +93,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12214 VM_BUG_ON(addr != -ENOMEM);
12215 info.flags = 0;
12216 info.low_limit = TASK_UNMAPPED_BASE;
12217+
12218+#ifdef CONFIG_PAX_RANDMMAP
12219+ if (mm->pax_flags & MF_PAX_RANDMMAP)
12220+ info.low_limit += mm->delta_mmap;
12221+#endif
12222+
12223 info.high_limit = STACK_TOP32;
12224 addr = vm_unmapped_area(&info);
12225 }
12226@@ -96,6 +113,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12227 struct mm_struct *mm = current->mm;
12228 struct vm_area_struct *vma;
12229 unsigned long task_size = TASK_SIZE;
12230+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
12231
12232 if (test_thread_flag(TIF_32BIT))
12233 task_size = STACK_TOP32;
12234@@ -111,19 +129,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12235 return addr;
12236 }
12237
12238+#ifdef CONFIG_PAX_RANDMMAP
12239+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
12240+#endif
12241+
12242 if (addr) {
12243 addr = ALIGN(addr, HPAGE_SIZE);
12244 vma = find_vma(mm, addr);
12245- if (task_size - len >= addr &&
12246- (!vma || addr + len <= vma->vm_start))
12247+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
12248 return addr;
12249 }
12250 if (mm->get_unmapped_area == arch_get_unmapped_area)
12251 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
12252- pgoff, flags);
12253+ pgoff, flags, offset);
12254 else
12255 return hugetlb_get_unmapped_area_topdown(file, addr, len,
12256- pgoff, flags);
12257+ pgoff, flags, offset);
12258 }
12259
12260 pte_t *huge_pte_alloc(struct mm_struct *mm,
12261diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
12262index 4ca0d6b..e89bca1 100644
12263--- a/arch/sparc/mm/init_64.c
12264+++ b/arch/sparc/mm/init_64.c
12265@@ -186,9 +186,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
12266 int num_kernel_image_mappings;
12267
12268 #ifdef CONFIG_DEBUG_DCFLUSH
12269-atomic_t dcpage_flushes = ATOMIC_INIT(0);
12270+atomic_unchecked_t dcpage_flushes = ATOMIC_INIT(0);
12271 #ifdef CONFIG_SMP
12272-atomic_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12273+atomic_unchecked_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12274 #endif
12275 #endif
12276
12277@@ -196,7 +196,7 @@ inline void flush_dcache_page_impl(struct page *page)
12278 {
12279 BUG_ON(tlb_type == hypervisor);
12280 #ifdef CONFIG_DEBUG_DCFLUSH
12281- atomic_inc(&dcpage_flushes);
12282+ atomic_inc_unchecked(&dcpage_flushes);
12283 #endif
12284
12285 #ifdef DCACHE_ALIASING_POSSIBLE
12286@@ -468,10 +468,10 @@ void mmu_info(struct seq_file *m)
12287
12288 #ifdef CONFIG_DEBUG_DCFLUSH
12289 seq_printf(m, "DCPageFlushes\t: %d\n",
12290- atomic_read(&dcpage_flushes));
12291+ atomic_read_unchecked(&dcpage_flushes));
12292 #ifdef CONFIG_SMP
12293 seq_printf(m, "DCPageFlushesXC\t: %d\n",
12294- atomic_read(&dcpage_flushes_xcall));
12295+ atomic_read_unchecked(&dcpage_flushes_xcall));
12296 #endif /* CONFIG_SMP */
12297 #endif /* CONFIG_DEBUG_DCFLUSH */
12298 }
12299diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
12300index 7cca418..53fc030 100644
12301--- a/arch/tile/Kconfig
12302+++ b/arch/tile/Kconfig
12303@@ -192,6 +192,7 @@ source "kernel/Kconfig.hz"
12304
12305 config KEXEC
12306 bool "kexec system call"
12307+ depends on !GRKERNSEC_KMEM
12308 ---help---
12309 kexec is a system call that implements the ability to shutdown your
12310 current kernel, and to start another kernel. It is like a reboot
12311diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
12312index 7b11c5f..755a026 100644
12313--- a/arch/tile/include/asm/atomic_64.h
12314+++ b/arch/tile/include/asm/atomic_64.h
12315@@ -105,6 +105,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
12316
12317 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
12318
12319+#define atomic64_read_unchecked(v) atomic64_read(v)
12320+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
12321+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
12322+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
12323+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
12324+#define atomic64_inc_unchecked(v) atomic64_inc(v)
12325+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
12326+#define atomic64_dec_unchecked(v) atomic64_dec(v)
12327+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
12328+
12329 /* Define this to indicate that cmpxchg is an efficient operation. */
12330 #define __HAVE_ARCH_CMPXCHG
12331
12332diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
12333index 6160761..00cac88 100644
12334--- a/arch/tile/include/asm/cache.h
12335+++ b/arch/tile/include/asm/cache.h
12336@@ -15,11 +15,12 @@
12337 #ifndef _ASM_TILE_CACHE_H
12338 #define _ASM_TILE_CACHE_H
12339
12340+#include <linux/const.h>
12341 #include <arch/chip.h>
12342
12343 /* bytes per L1 data cache line */
12344 #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE()
12345-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12346+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12347
12348 /* bytes per L2 cache line */
12349 #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE()
12350diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
12351index f41cb53..31d3ab4 100644
12352--- a/arch/tile/include/asm/uaccess.h
12353+++ b/arch/tile/include/asm/uaccess.h
12354@@ -417,9 +417,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
12355 const void __user *from,
12356 unsigned long n)
12357 {
12358- int sz = __compiletime_object_size(to);
12359+ size_t sz = __compiletime_object_size(to);
12360
12361- if (likely(sz == -1 || sz >= n))
12362+ if (likely(sz == (size_t)-1 || sz >= n))
12363 n = _copy_from_user(to, from, n);
12364 else
12365 copy_from_user_overflow();
12366diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
12367index 8416240..a012fb7 100644
12368--- a/arch/tile/mm/hugetlbpage.c
12369+++ b/arch/tile/mm/hugetlbpage.c
12370@@ -179,6 +179,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
12371 info.high_limit = TASK_SIZE;
12372 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12373 info.align_offset = 0;
12374+ info.threadstack_offset = 0;
12375 return vm_unmapped_area(&info);
12376 }
12377
12378@@ -196,6 +197,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
12379 info.high_limit = current->mm->mmap_base;
12380 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12381 info.align_offset = 0;
12382+ info.threadstack_offset = 0;
12383 addr = vm_unmapped_area(&info);
12384
12385 /*
12386diff --git a/arch/um/Makefile b/arch/um/Makefile
12387index e4b1a96..16162f8 100644
12388--- a/arch/um/Makefile
12389+++ b/arch/um/Makefile
12390@@ -72,6 +72,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
12391 $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
12392 $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
12393
12394+ifdef CONSTIFY_PLUGIN
12395+USER_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12396+endif
12397+
12398 #This will adjust *FLAGS accordingly to the platform.
12399 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
12400
12401diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
12402index 19e1bdd..3665b77 100644
12403--- a/arch/um/include/asm/cache.h
12404+++ b/arch/um/include/asm/cache.h
12405@@ -1,6 +1,7 @@
12406 #ifndef __UM_CACHE_H
12407 #define __UM_CACHE_H
12408
12409+#include <linux/const.h>
12410
12411 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
12412 # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
12413@@ -12,6 +13,6 @@
12414 # define L1_CACHE_SHIFT 5
12415 #endif
12416
12417-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12418+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12419
12420 #endif
12421diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
12422index 2e0a6b1..a64d0f5 100644
12423--- a/arch/um/include/asm/kmap_types.h
12424+++ b/arch/um/include/asm/kmap_types.h
12425@@ -8,6 +8,6 @@
12426
12427 /* No more #include "asm/arch/kmap_types.h" ! */
12428
12429-#define KM_TYPE_NR 14
12430+#define KM_TYPE_NR 15
12431
12432 #endif
12433diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
12434index 71c5d13..4c7b9f1 100644
12435--- a/arch/um/include/asm/page.h
12436+++ b/arch/um/include/asm/page.h
12437@@ -14,6 +14,9 @@
12438 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
12439 #define PAGE_MASK (~(PAGE_SIZE-1))
12440
12441+#define ktla_ktva(addr) (addr)
12442+#define ktva_ktla(addr) (addr)
12443+
12444 #ifndef __ASSEMBLY__
12445
12446 struct page;
12447diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
12448index 2b4274e..754fe06 100644
12449--- a/arch/um/include/asm/pgtable-3level.h
12450+++ b/arch/um/include/asm/pgtable-3level.h
12451@@ -58,6 +58,7 @@
12452 #define pud_present(x) (pud_val(x) & _PAGE_PRESENT)
12453 #define pud_populate(mm, pud, pmd) \
12454 set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
12455+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
12456
12457 #ifdef CONFIG_64BIT
12458 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
12459diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
12460index f17bca8..48adb87 100644
12461--- a/arch/um/kernel/process.c
12462+++ b/arch/um/kernel/process.c
12463@@ -356,22 +356,6 @@ int singlestepping(void * t)
12464 return 2;
12465 }
12466
12467-/*
12468- * Only x86 and x86_64 have an arch_align_stack().
12469- * All other arches have "#define arch_align_stack(x) (x)"
12470- * in their asm/exec.h
12471- * As this is included in UML from asm-um/system-generic.h,
12472- * we can use it to behave as the subarch does.
12473- */
12474-#ifndef arch_align_stack
12475-unsigned long arch_align_stack(unsigned long sp)
12476-{
12477- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
12478- sp -= get_random_int() % 8192;
12479- return sp & ~0xf;
12480-}
12481-#endif
12482-
12483 unsigned long get_wchan(struct task_struct *p)
12484 {
12485 unsigned long stack_page, sp, ip;
12486diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
12487index ad8f795..2c7eec6 100644
12488--- a/arch/unicore32/include/asm/cache.h
12489+++ b/arch/unicore32/include/asm/cache.h
12490@@ -12,8 +12,10 @@
12491 #ifndef __UNICORE_CACHE_H__
12492 #define __UNICORE_CACHE_H__
12493
12494-#define L1_CACHE_SHIFT (5)
12495-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12496+#include <linux/const.h>
12497+
12498+#define L1_CACHE_SHIFT 5
12499+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12500
12501 /*
12502 * Memory returned by kmalloc() may be used for DMA, so we must make
12503diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
12504index b7d31ca..9481ec5 100644
12505--- a/arch/x86/Kconfig
12506+++ b/arch/x86/Kconfig
12507@@ -132,7 +132,7 @@ config X86
12508 select RTC_LIB
12509 select HAVE_DEBUG_STACKOVERFLOW
12510 select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
12511- select HAVE_CC_STACKPROTECTOR
12512+ select HAVE_CC_STACKPROTECTOR if X86_64 || !PAX_MEMORY_UDEREF
12513 select GENERIC_CPU_AUTOPROBE
12514 select HAVE_ARCH_AUDITSYSCALL
12515 select ARCH_SUPPORTS_ATOMIC_RMW
12516@@ -266,7 +266,7 @@ config X86_HT
12517
12518 config X86_32_LAZY_GS
12519 def_bool y
12520- depends on X86_32 && !CC_STACKPROTECTOR
12521+ depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
12522
12523 config ARCH_HWEIGHT_CFLAGS
12524 string
12525@@ -632,6 +632,7 @@ config SCHED_OMIT_FRAME_POINTER
12526
12527 menuconfig HYPERVISOR_GUEST
12528 bool "Linux guest support"
12529+ depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_GUEST || (GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_XEN)
12530 ---help---
12531 Say Y here to enable options for running Linux under various hyper-
12532 visors. This option enables basic hypervisor detection and platform
12533@@ -1013,6 +1014,7 @@ config VM86
12534
12535 config X86_16BIT
12536 bool "Enable support for 16-bit segments" if EXPERT
12537+ depends on !GRKERNSEC
12538 default y
12539 ---help---
12540 This option is required by programs like Wine to run 16-bit
12541@@ -1186,6 +1188,7 @@ choice
12542
12543 config NOHIGHMEM
12544 bool "off"
12545+ depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12546 ---help---
12547 Linux can use up to 64 Gigabytes of physical memory on x86 systems.
12548 However, the address space of 32-bit x86 processors is only 4
12549@@ -1222,6 +1225,7 @@ config NOHIGHMEM
12550
12551 config HIGHMEM4G
12552 bool "4GB"
12553+ depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12554 ---help---
12555 Select this if you have a 32-bit processor and between 1 and 4
12556 gigabytes of physical RAM.
12557@@ -1274,7 +1278,7 @@ config PAGE_OFFSET
12558 hex
12559 default 0xB0000000 if VMSPLIT_3G_OPT
12560 default 0x80000000 if VMSPLIT_2G
12561- default 0x78000000 if VMSPLIT_2G_OPT
12562+ default 0x70000000 if VMSPLIT_2G_OPT
12563 default 0x40000000 if VMSPLIT_1G
12564 default 0xC0000000
12565 depends on X86_32
12566@@ -1715,6 +1719,7 @@ source kernel/Kconfig.hz
12567
12568 config KEXEC
12569 bool "kexec system call"
12570+ depends on !GRKERNSEC_KMEM
12571 ---help---
12572 kexec is a system call that implements the ability to shutdown your
12573 current kernel, and to start another kernel. It is like a reboot
12574@@ -1900,7 +1905,9 @@ config X86_NEED_RELOCS
12575
12576 config PHYSICAL_ALIGN
12577 hex "Alignment value to which kernel should be aligned"
12578- default "0x200000"
12579+ default "0x1000000"
12580+ range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
12581+ range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
12582 range 0x2000 0x1000000 if X86_32
12583 range 0x200000 0x1000000 if X86_64
12584 ---help---
12585@@ -1983,6 +1990,7 @@ config COMPAT_VDSO
12586 def_bool n
12587 prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
12588 depends on X86_32 || IA32_EMULATION
12589+ depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
12590 ---help---
12591 Certain buggy versions of glibc will crash if they are
12592 presented with a 32-bit vDSO that is not mapped at the address
12593diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
12594index 6983314..54ad7e8 100644
12595--- a/arch/x86/Kconfig.cpu
12596+++ b/arch/x86/Kconfig.cpu
12597@@ -319,7 +319,7 @@ config X86_PPRO_FENCE
12598
12599 config X86_F00F_BUG
12600 def_bool y
12601- depends on M586MMX || M586TSC || M586 || M486
12602+ depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
12603
12604 config X86_INVD_BUG
12605 def_bool y
12606@@ -327,7 +327,7 @@ config X86_INVD_BUG
12607
12608 config X86_ALIGNMENT_16
12609 def_bool y
12610- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12611+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12612
12613 config X86_INTEL_USERCOPY
12614 def_bool y
12615@@ -369,7 +369,7 @@ config X86_CMPXCHG64
12616 # generates cmov.
12617 config X86_CMOV
12618 def_bool y
12619- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12620+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12621
12622 config X86_MINIMUM_CPU_FAMILY
12623 int
12624diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
12625index 20028da..88d5946 100644
12626--- a/arch/x86/Kconfig.debug
12627+++ b/arch/x86/Kconfig.debug
12628@@ -93,7 +93,7 @@ config EFI_PGT_DUMP
12629 config DEBUG_RODATA
12630 bool "Write protect kernel read-only data structures"
12631 default y
12632- depends on DEBUG_KERNEL
12633+ depends on DEBUG_KERNEL && BROKEN
12634 ---help---
12635 Mark the kernel read-only data as write-protected in the pagetables,
12636 in order to catch accidental (and incorrect) writes to such const
12637@@ -111,7 +111,7 @@ config DEBUG_RODATA_TEST
12638
12639 config DEBUG_SET_MODULE_RONX
12640 bool "Set loadable kernel module data as NX and text as RO"
12641- depends on MODULES
12642+ depends on MODULES && BROKEN
12643 ---help---
12644 This option helps catch unintended modifications to loadable
12645 kernel module's text and read-only data. It also prevents execution
12646diff --git a/arch/x86/Makefile b/arch/x86/Makefile
12647index 5ba2d9c..41e5bb6 100644
12648--- a/arch/x86/Makefile
12649+++ b/arch/x86/Makefile
12650@@ -65,9 +65,6 @@ ifeq ($(CONFIG_X86_32),y)
12651 # CPU-specific tuning. Anything which can be shared with UML should go here.
12652 include $(srctree)/arch/x86/Makefile_32.cpu
12653 KBUILD_CFLAGS += $(cflags-y)
12654-
12655- # temporary until string.h is fixed
12656- KBUILD_CFLAGS += -ffreestanding
12657 else
12658 BITS := 64
12659 UTS_MACHINE := x86_64
12660@@ -107,6 +104,9 @@ else
12661 KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
12662 endif
12663
12664+# temporary until string.h is fixed
12665+KBUILD_CFLAGS += -ffreestanding
12666+
12667 # Make sure compiler does not have buggy stack-protector support.
12668 ifdef CONFIG_CC_STACKPROTECTOR
12669 cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
12670@@ -181,6 +181,7 @@ archheaders:
12671 $(Q)$(MAKE) $(build)=arch/x86/syscalls all
12672
12673 archprepare:
12674+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
12675 ifeq ($(CONFIG_KEXEC_FILE),y)
12676 $(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
12677 endif
12678@@ -264,3 +265,9 @@ define archhelp
12679 echo ' FDARGS="..." arguments for the booted kernel'
12680 echo ' FDINITRD=file initrd for the booted kernel'
12681 endef
12682+
12683+define OLD_LD
12684+
12685+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
12686+*** Please upgrade your binutils to 2.18 or newer
12687+endef
12688diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
12689index 57bbf2f..b100fce 100644
12690--- a/arch/x86/boot/Makefile
12691+++ b/arch/x86/boot/Makefile
12692@@ -58,6 +58,9 @@ clean-files += cpustr.h
12693 # ---------------------------------------------------------------------------
12694
12695 KBUILD_CFLAGS := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
12696+ifdef CONSTIFY_PLUGIN
12697+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12698+endif
12699 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12700 GCOV_PROFILE := n
12701
12702diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
12703index 878e4b9..20537ab 100644
12704--- a/arch/x86/boot/bitops.h
12705+++ b/arch/x86/boot/bitops.h
12706@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12707 u8 v;
12708 const u32 *p = (const u32 *)addr;
12709
12710- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12711+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12712 return v;
12713 }
12714
12715@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12716
12717 static inline void set_bit(int nr, void *addr)
12718 {
12719- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12720+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12721 }
12722
12723 #endif /* BOOT_BITOPS_H */
12724diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
12725index bd49ec6..94c7f58 100644
12726--- a/arch/x86/boot/boot.h
12727+++ b/arch/x86/boot/boot.h
12728@@ -84,7 +84,7 @@ static inline void io_delay(void)
12729 static inline u16 ds(void)
12730 {
12731 u16 seg;
12732- asm("movw %%ds,%0" : "=rm" (seg));
12733+ asm volatile("movw %%ds,%0" : "=rm" (seg));
12734 return seg;
12735 }
12736
12737diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
12738index 0a291cd..9686efc 100644
12739--- a/arch/x86/boot/compressed/Makefile
12740+++ b/arch/x86/boot/compressed/Makefile
12741@@ -30,6 +30,9 @@ KBUILD_CFLAGS += $(cflags-y)
12742 KBUILD_CFLAGS += -mno-mmx -mno-sse
12743 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
12744 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
12745+ifdef CONSTIFY_PLUGIN
12746+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12747+endif
12748
12749 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12750 GCOV_PROFILE := n
12751diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
12752index a53440e..c3dbf1e 100644
12753--- a/arch/x86/boot/compressed/efi_stub_32.S
12754+++ b/arch/x86/boot/compressed/efi_stub_32.S
12755@@ -46,16 +46,13 @@ ENTRY(efi_call_phys)
12756 * parameter 2, ..., param n. To make things easy, we save the return
12757 * address of efi_call_phys in a global variable.
12758 */
12759- popl %ecx
12760- movl %ecx, saved_return_addr(%edx)
12761- /* get the function pointer into ECX*/
12762- popl %ecx
12763- movl %ecx, efi_rt_function_ptr(%edx)
12764+ popl saved_return_addr(%edx)
12765+ popl efi_rt_function_ptr(%edx)
12766
12767 /*
12768 * 3. Call the physical function.
12769 */
12770- call *%ecx
12771+ call *efi_rt_function_ptr(%edx)
12772
12773 /*
12774 * 4. Balance the stack. And because EAX contain the return value,
12775@@ -67,15 +64,12 @@ ENTRY(efi_call_phys)
12776 1: popl %edx
12777 subl $1b, %edx
12778
12779- movl efi_rt_function_ptr(%edx), %ecx
12780- pushl %ecx
12781+ pushl efi_rt_function_ptr(%edx)
12782
12783 /*
12784 * 10. Push the saved return address onto the stack and return.
12785 */
12786- movl saved_return_addr(%edx), %ecx
12787- pushl %ecx
12788- ret
12789+ jmpl *saved_return_addr(%edx)
12790 ENDPROC(efi_call_phys)
12791 .previous
12792
12793diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
12794index 630384a..278e788 100644
12795--- a/arch/x86/boot/compressed/efi_thunk_64.S
12796+++ b/arch/x86/boot/compressed/efi_thunk_64.S
12797@@ -189,8 +189,8 @@ efi_gdt64:
12798 .long 0 /* Filled out by user */
12799 .word 0
12800 .quad 0x0000000000000000 /* NULL descriptor */
12801- .quad 0x00af9a000000ffff /* __KERNEL_CS */
12802- .quad 0x00cf92000000ffff /* __KERNEL_DS */
12803+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
12804+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
12805 .quad 0x0080890000000000 /* TS descriptor */
12806 .quad 0x0000000000000000 /* TS continued */
12807 efi_gdt64_end:
12808diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
12809index 1d7fbbc..36ecd58 100644
12810--- a/arch/x86/boot/compressed/head_32.S
12811+++ b/arch/x86/boot/compressed/head_32.S
12812@@ -140,10 +140,10 @@ preferred_addr:
12813 addl %eax, %ebx
12814 notl %eax
12815 andl %eax, %ebx
12816- cmpl $LOAD_PHYSICAL_ADDR, %ebx
12817+ cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12818 jge 1f
12819 #endif
12820- movl $LOAD_PHYSICAL_ADDR, %ebx
12821+ movl $____LOAD_PHYSICAL_ADDR, %ebx
12822 1:
12823
12824 /* Target address to relocate to for decompression */
12825diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
12826index 6b1766c..ad465c9 100644
12827--- a/arch/x86/boot/compressed/head_64.S
12828+++ b/arch/x86/boot/compressed/head_64.S
12829@@ -94,10 +94,10 @@ ENTRY(startup_32)
12830 addl %eax, %ebx
12831 notl %eax
12832 andl %eax, %ebx
12833- cmpl $LOAD_PHYSICAL_ADDR, %ebx
12834+ cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12835 jge 1f
12836 #endif
12837- movl $LOAD_PHYSICAL_ADDR, %ebx
12838+ movl $____LOAD_PHYSICAL_ADDR, %ebx
12839 1:
12840
12841 /* Target address to relocate to for decompression */
12842@@ -322,10 +322,10 @@ preferred_addr:
12843 addq %rax, %rbp
12844 notq %rax
12845 andq %rax, %rbp
12846- cmpq $LOAD_PHYSICAL_ADDR, %rbp
12847+ cmpq $____LOAD_PHYSICAL_ADDR, %rbp
12848 jge 1f
12849 #endif
12850- movq $LOAD_PHYSICAL_ADDR, %rbp
12851+ movq $____LOAD_PHYSICAL_ADDR, %rbp
12852 1:
12853
12854 /* Target address to relocate to for decompression */
12855@@ -434,8 +434,8 @@ gdt:
12856 .long gdt
12857 .word 0
12858 .quad 0x0000000000000000 /* NULL descriptor */
12859- .quad 0x00af9a000000ffff /* __KERNEL_CS */
12860- .quad 0x00cf92000000ffff /* __KERNEL_DS */
12861+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
12862+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
12863 .quad 0x0080890000000000 /* TS descriptor */
12864 .quad 0x0000000000000000 /* TS continued */
12865 gdt_end:
12866diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
12867index a950864..c710239 100644
12868--- a/arch/x86/boot/compressed/misc.c
12869+++ b/arch/x86/boot/compressed/misc.c
12870@@ -242,7 +242,7 @@ static void handle_relocations(void *output, unsigned long output_len)
12871 * Calculate the delta between where vmlinux was linked to load
12872 * and where it was actually loaded.
12873 */
12874- delta = min_addr - LOAD_PHYSICAL_ADDR;
12875+ delta = min_addr - ____LOAD_PHYSICAL_ADDR;
12876 if (!delta) {
12877 debug_putstr("No relocation needed... ");
12878 return;
12879@@ -324,7 +324,7 @@ static void parse_elf(void *output)
12880 Elf32_Ehdr ehdr;
12881 Elf32_Phdr *phdrs, *phdr;
12882 #endif
12883- void *dest;
12884+ void *dest, *prev;
12885 int i;
12886
12887 memcpy(&ehdr, output, sizeof(ehdr));
12888@@ -351,13 +351,16 @@ static void parse_elf(void *output)
12889 case PT_LOAD:
12890 #ifdef CONFIG_RELOCATABLE
12891 dest = output;
12892- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
12893+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
12894 #else
12895 dest = (void *)(phdr->p_paddr);
12896 #endif
12897 memcpy(dest,
12898 output + phdr->p_offset,
12899 phdr->p_filesz);
12900+ if (i)
12901+ memset(prev, 0xff, dest - prev);
12902+ prev = dest + phdr->p_filesz;
12903 break;
12904 default: /* Ignore other PT_* */ break;
12905 }
12906@@ -416,7 +419,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
12907 error("Destination address too large");
12908 #endif
12909 #ifndef CONFIG_RELOCATABLE
12910- if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
12911+ if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
12912 error("Wrong destination address");
12913 #endif
12914
12915diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
12916index 1fd7d57..0f7d096 100644
12917--- a/arch/x86/boot/cpucheck.c
12918+++ b/arch/x86/boot/cpucheck.c
12919@@ -125,9 +125,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12920 u32 ecx = MSR_K7_HWCR;
12921 u32 eax, edx;
12922
12923- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12924+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12925 eax &= ~(1 << 15);
12926- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12927+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12928
12929 get_cpuflags(); /* Make sure it really did something */
12930 err = check_cpuflags();
12931@@ -140,9 +140,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12932 u32 ecx = MSR_VIA_FCR;
12933 u32 eax, edx;
12934
12935- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12936+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12937 eax |= (1<<1)|(1<<7);
12938- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12939+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12940
12941 set_bit(X86_FEATURE_CX8, cpu.flags);
12942 err = check_cpuflags();
12943@@ -153,12 +153,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12944 u32 eax, edx;
12945 u32 level = 1;
12946
12947- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12948- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12949- asm("cpuid"
12950+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12951+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12952+ asm volatile("cpuid"
12953 : "+a" (level), "=d" (cpu.flags[0])
12954 : : "ecx", "ebx");
12955- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12956+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12957
12958 err = check_cpuflags();
12959 } else if (err == 0x01 &&
12960diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
12961index 16ef025..91e033b 100644
12962--- a/arch/x86/boot/header.S
12963+++ b/arch/x86/boot/header.S
12964@@ -438,10 +438,14 @@ setup_data: .quad 0 # 64-bit physical pointer to
12965 # single linked list of
12966 # struct setup_data
12967
12968-pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
12969+pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr
12970
12971 #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
12972+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
12973+#define VO_INIT_SIZE (VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
12974+#else
12975 #define VO_INIT_SIZE (VO__end - VO__text)
12976+#endif
12977 #if ZO_INIT_SIZE > VO_INIT_SIZE
12978 #define INIT_SIZE ZO_INIT_SIZE
12979 #else
12980diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
12981index db75d07..8e6d0af 100644
12982--- a/arch/x86/boot/memory.c
12983+++ b/arch/x86/boot/memory.c
12984@@ -19,7 +19,7 @@
12985
12986 static int detect_memory_e820(void)
12987 {
12988- int count = 0;
12989+ unsigned int count = 0;
12990 struct biosregs ireg, oreg;
12991 struct e820entry *desc = boot_params.e820_map;
12992 static struct e820entry buf; /* static so it is zeroed */
12993diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
12994index ba3e100..6501b8f 100644
12995--- a/arch/x86/boot/video-vesa.c
12996+++ b/arch/x86/boot/video-vesa.c
12997@@ -201,6 +201,7 @@ static void vesa_store_pm_info(void)
12998
12999 boot_params.screen_info.vesapm_seg = oreg.es;
13000 boot_params.screen_info.vesapm_off = oreg.di;
13001+ boot_params.screen_info.vesapm_size = oreg.cx;
13002 }
13003
13004 /*
13005diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
13006index 43eda28..5ab5fdb 100644
13007--- a/arch/x86/boot/video.c
13008+++ b/arch/x86/boot/video.c
13009@@ -96,7 +96,7 @@ static void store_mode_params(void)
13010 static unsigned int get_entry(void)
13011 {
13012 char entry_buf[4];
13013- int i, len = 0;
13014+ unsigned int i, len = 0;
13015 int key;
13016 unsigned int v;
13017
13018diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
13019index 9105655..41779c1 100644
13020--- a/arch/x86/crypto/aes-x86_64-asm_64.S
13021+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
13022@@ -8,6 +8,8 @@
13023 * including this sentence is retained in full.
13024 */
13025
13026+#include <asm/alternative-asm.h>
13027+
13028 .extern crypto_ft_tab
13029 .extern crypto_it_tab
13030 .extern crypto_fl_tab
13031@@ -70,6 +72,8 @@
13032 je B192; \
13033 leaq 32(r9),r9;
13034
13035+#define ret pax_force_retaddr; ret
13036+
13037 #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
13038 movq r1,r2; \
13039 movq r3,r4; \
13040diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
13041index 6bd2c6c..368c93e 100644
13042--- a/arch/x86/crypto/aesni-intel_asm.S
13043+++ b/arch/x86/crypto/aesni-intel_asm.S
13044@@ -31,6 +31,7 @@
13045
13046 #include <linux/linkage.h>
13047 #include <asm/inst.h>
13048+#include <asm/alternative-asm.h>
13049
13050 /*
13051 * The following macros are used to move an (un)aligned 16 byte value to/from
13052@@ -217,7 +218,7 @@ enc: .octa 0x2
13053 * num_initial_blocks = b mod 4
13054 * encrypt the initial num_initial_blocks blocks and apply ghash on
13055 * the ciphertext
13056-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13057+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13058 * are clobbered
13059 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
13060 */
13061@@ -227,8 +228,8 @@ enc: .octa 0x2
13062 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
13063 MOVADQ SHUF_MASK(%rip), %xmm14
13064 mov arg7, %r10 # %r10 = AAD
13065- mov arg8, %r12 # %r12 = aadLen
13066- mov %r12, %r11
13067+ mov arg8, %r15 # %r15 = aadLen
13068+ mov %r15, %r11
13069 pxor %xmm\i, %xmm\i
13070
13071 _get_AAD_loop\num_initial_blocks\operation:
13072@@ -237,17 +238,17 @@ _get_AAD_loop\num_initial_blocks\operation:
13073 psrldq $4, %xmm\i
13074 pxor \TMP1, %xmm\i
13075 add $4, %r10
13076- sub $4, %r12
13077+ sub $4, %r15
13078 jne _get_AAD_loop\num_initial_blocks\operation
13079
13080 cmp $16, %r11
13081 je _get_AAD_loop2_done\num_initial_blocks\operation
13082
13083- mov $16, %r12
13084+ mov $16, %r15
13085 _get_AAD_loop2\num_initial_blocks\operation:
13086 psrldq $4, %xmm\i
13087- sub $4, %r12
13088- cmp %r11, %r12
13089+ sub $4, %r15
13090+ cmp %r11, %r15
13091 jne _get_AAD_loop2\num_initial_blocks\operation
13092
13093 _get_AAD_loop2_done\num_initial_blocks\operation:
13094@@ -442,7 +443,7 @@ _initial_blocks_done\num_initial_blocks\operation:
13095 * num_initial_blocks = b mod 4
13096 * encrypt the initial num_initial_blocks blocks and apply ghash on
13097 * the ciphertext
13098-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13099+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13100 * are clobbered
13101 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
13102 */
13103@@ -452,8 +453,8 @@ _initial_blocks_done\num_initial_blocks\operation:
13104 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
13105 MOVADQ SHUF_MASK(%rip), %xmm14
13106 mov arg7, %r10 # %r10 = AAD
13107- mov arg8, %r12 # %r12 = aadLen
13108- mov %r12, %r11
13109+ mov arg8, %r15 # %r15 = aadLen
13110+ mov %r15, %r11
13111 pxor %xmm\i, %xmm\i
13112 _get_AAD_loop\num_initial_blocks\operation:
13113 movd (%r10), \TMP1
13114@@ -461,15 +462,15 @@ _get_AAD_loop\num_initial_blocks\operation:
13115 psrldq $4, %xmm\i
13116 pxor \TMP1, %xmm\i
13117 add $4, %r10
13118- sub $4, %r12
13119+ sub $4, %r15
13120 jne _get_AAD_loop\num_initial_blocks\operation
13121 cmp $16, %r11
13122 je _get_AAD_loop2_done\num_initial_blocks\operation
13123- mov $16, %r12
13124+ mov $16, %r15
13125 _get_AAD_loop2\num_initial_blocks\operation:
13126 psrldq $4, %xmm\i
13127- sub $4, %r12
13128- cmp %r11, %r12
13129+ sub $4, %r15
13130+ cmp %r11, %r15
13131 jne _get_AAD_loop2\num_initial_blocks\operation
13132 _get_AAD_loop2_done\num_initial_blocks\operation:
13133 PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
13134@@ -1280,7 +1281,7 @@ _esb_loop_\@:
13135 *
13136 *****************************************************************************/
13137 ENTRY(aesni_gcm_dec)
13138- push %r12
13139+ push %r15
13140 push %r13
13141 push %r14
13142 mov %rsp, %r14
13143@@ -1290,8 +1291,8 @@ ENTRY(aesni_gcm_dec)
13144 */
13145 sub $VARIABLE_OFFSET, %rsp
13146 and $~63, %rsp # align rsp to 64 bytes
13147- mov %arg6, %r12
13148- movdqu (%r12), %xmm13 # %xmm13 = HashKey
13149+ mov %arg6, %r15
13150+ movdqu (%r15), %xmm13 # %xmm13 = HashKey
13151 movdqa SHUF_MASK(%rip), %xmm2
13152 PSHUFB_XMM %xmm2, %xmm13
13153
13154@@ -1319,10 +1320,10 @@ ENTRY(aesni_gcm_dec)
13155 movdqa %xmm13, HashKey(%rsp) # store HashKey<<1 (mod poly)
13156 mov %arg4, %r13 # save the number of bytes of plaintext/ciphertext
13157 and $-16, %r13 # %r13 = %r13 - (%r13 mod 16)
13158- mov %r13, %r12
13159- and $(3<<4), %r12
13160+ mov %r13, %r15
13161+ and $(3<<4), %r15
13162 jz _initial_num_blocks_is_0_decrypt
13163- cmp $(2<<4), %r12
13164+ cmp $(2<<4), %r15
13165 jb _initial_num_blocks_is_1_decrypt
13166 je _initial_num_blocks_is_2_decrypt
13167 _initial_num_blocks_is_3_decrypt:
13168@@ -1372,16 +1373,16 @@ _zero_cipher_left_decrypt:
13169 sub $16, %r11
13170 add %r13, %r11
13171 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte block
13172- lea SHIFT_MASK+16(%rip), %r12
13173- sub %r13, %r12
13174+ lea SHIFT_MASK+16(%rip), %r15
13175+ sub %r13, %r15
13176 # adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
13177 # (%r13 is the number of bytes in plaintext mod 16)
13178- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
13179+ movdqu (%r15), %xmm2 # get the appropriate shuffle mask
13180 PSHUFB_XMM %xmm2, %xmm1 # right shift 16-%r13 butes
13181
13182 movdqa %xmm1, %xmm2
13183 pxor %xmm1, %xmm0 # Ciphertext XOR E(K, Yn)
13184- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
13185+ movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
13186 # get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
13187 pand %xmm1, %xmm0 # mask out top 16-%r13 bytes of %xmm0
13188 pand %xmm1, %xmm2
13189@@ -1410,9 +1411,9 @@ _less_than_8_bytes_left_decrypt:
13190 sub $1, %r13
13191 jne _less_than_8_bytes_left_decrypt
13192 _multiple_of_16_bytes_decrypt:
13193- mov arg8, %r12 # %r13 = aadLen (number of bytes)
13194- shl $3, %r12 # convert into number of bits
13195- movd %r12d, %xmm15 # len(A) in %xmm15
13196+ mov arg8, %r15 # %r13 = aadLen (number of bytes)
13197+ shl $3, %r15 # convert into number of bits
13198+ movd %r15d, %xmm15 # len(A) in %xmm15
13199 shl $3, %arg4 # len(C) in bits (*128)
13200 MOVQ_R64_XMM %arg4, %xmm1
13201 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
13202@@ -1451,7 +1452,8 @@ _return_T_done_decrypt:
13203 mov %r14, %rsp
13204 pop %r14
13205 pop %r13
13206- pop %r12
13207+ pop %r15
13208+ pax_force_retaddr
13209 ret
13210 ENDPROC(aesni_gcm_dec)
13211
13212@@ -1540,7 +1542,7 @@ ENDPROC(aesni_gcm_dec)
13213 * poly = x^128 + x^127 + x^126 + x^121 + 1
13214 ***************************************************************************/
13215 ENTRY(aesni_gcm_enc)
13216- push %r12
13217+ push %r15
13218 push %r13
13219 push %r14
13220 mov %rsp, %r14
13221@@ -1550,8 +1552,8 @@ ENTRY(aesni_gcm_enc)
13222 #
13223 sub $VARIABLE_OFFSET, %rsp
13224 and $~63, %rsp
13225- mov %arg6, %r12
13226- movdqu (%r12), %xmm13
13227+ mov %arg6, %r15
13228+ movdqu (%r15), %xmm13
13229 movdqa SHUF_MASK(%rip), %xmm2
13230 PSHUFB_XMM %xmm2, %xmm13
13231
13232@@ -1575,13 +1577,13 @@ ENTRY(aesni_gcm_enc)
13233 movdqa %xmm13, HashKey(%rsp)
13234 mov %arg4, %r13 # %xmm13 holds HashKey<<1 (mod poly)
13235 and $-16, %r13
13236- mov %r13, %r12
13237+ mov %r13, %r15
13238
13239 # Encrypt first few blocks
13240
13241- and $(3<<4), %r12
13242+ and $(3<<4), %r15
13243 jz _initial_num_blocks_is_0_encrypt
13244- cmp $(2<<4), %r12
13245+ cmp $(2<<4), %r15
13246 jb _initial_num_blocks_is_1_encrypt
13247 je _initial_num_blocks_is_2_encrypt
13248 _initial_num_blocks_is_3_encrypt:
13249@@ -1634,14 +1636,14 @@ _zero_cipher_left_encrypt:
13250 sub $16, %r11
13251 add %r13, %r11
13252 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte blocks
13253- lea SHIFT_MASK+16(%rip), %r12
13254- sub %r13, %r12
13255+ lea SHIFT_MASK+16(%rip), %r15
13256+ sub %r13, %r15
13257 # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
13258 # (%r13 is the number of bytes in plaintext mod 16)
13259- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
13260+ movdqu (%r15), %xmm2 # get the appropriate shuffle mask
13261 PSHUFB_XMM %xmm2, %xmm1 # shift right 16-r13 byte
13262 pxor %xmm1, %xmm0 # Plaintext XOR Encrypt(K, Yn)
13263- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
13264+ movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
13265 # get the appropriate mask to mask out top 16-r13 bytes of xmm0
13266 pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
13267 movdqa SHUF_MASK(%rip), %xmm10
13268@@ -1674,9 +1676,9 @@ _less_than_8_bytes_left_encrypt:
13269 sub $1, %r13
13270 jne _less_than_8_bytes_left_encrypt
13271 _multiple_of_16_bytes_encrypt:
13272- mov arg8, %r12 # %r12 = addLen (number of bytes)
13273- shl $3, %r12
13274- movd %r12d, %xmm15 # len(A) in %xmm15
13275+ mov arg8, %r15 # %r15 = addLen (number of bytes)
13276+ shl $3, %r15
13277+ movd %r15d, %xmm15 # len(A) in %xmm15
13278 shl $3, %arg4 # len(C) in bits (*128)
13279 MOVQ_R64_XMM %arg4, %xmm1
13280 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
13281@@ -1715,7 +1717,8 @@ _return_T_done_encrypt:
13282 mov %r14, %rsp
13283 pop %r14
13284 pop %r13
13285- pop %r12
13286+ pop %r15
13287+ pax_force_retaddr
13288 ret
13289 ENDPROC(aesni_gcm_enc)
13290
13291@@ -1733,6 +1736,7 @@ _key_expansion_256a:
13292 pxor %xmm1, %xmm0
13293 movaps %xmm0, (TKEYP)
13294 add $0x10, TKEYP
13295+ pax_force_retaddr
13296 ret
13297 ENDPROC(_key_expansion_128)
13298 ENDPROC(_key_expansion_256a)
13299@@ -1759,6 +1763,7 @@ _key_expansion_192a:
13300 shufps $0b01001110, %xmm2, %xmm1
13301 movaps %xmm1, 0x10(TKEYP)
13302 add $0x20, TKEYP
13303+ pax_force_retaddr
13304 ret
13305 ENDPROC(_key_expansion_192a)
13306
13307@@ -1779,6 +1784,7 @@ _key_expansion_192b:
13308
13309 movaps %xmm0, (TKEYP)
13310 add $0x10, TKEYP
13311+ pax_force_retaddr
13312 ret
13313 ENDPROC(_key_expansion_192b)
13314
13315@@ -1792,6 +1798,7 @@ _key_expansion_256b:
13316 pxor %xmm1, %xmm2
13317 movaps %xmm2, (TKEYP)
13318 add $0x10, TKEYP
13319+ pax_force_retaddr
13320 ret
13321 ENDPROC(_key_expansion_256b)
13322
13323@@ -1905,6 +1912,7 @@ ENTRY(aesni_set_key)
13324 #ifndef __x86_64__
13325 popl KEYP
13326 #endif
13327+ pax_force_retaddr
13328 ret
13329 ENDPROC(aesni_set_key)
13330
13331@@ -1927,6 +1935,7 @@ ENTRY(aesni_enc)
13332 popl KLEN
13333 popl KEYP
13334 #endif
13335+ pax_force_retaddr
13336 ret
13337 ENDPROC(aesni_enc)
13338
13339@@ -1985,6 +1994,7 @@ _aesni_enc1:
13340 AESENC KEY STATE
13341 movaps 0x70(TKEYP), KEY
13342 AESENCLAST KEY STATE
13343+ pax_force_retaddr
13344 ret
13345 ENDPROC(_aesni_enc1)
13346
13347@@ -2094,6 +2104,7 @@ _aesni_enc4:
13348 AESENCLAST KEY STATE2
13349 AESENCLAST KEY STATE3
13350 AESENCLAST KEY STATE4
13351+ pax_force_retaddr
13352 ret
13353 ENDPROC(_aesni_enc4)
13354
13355@@ -2117,6 +2128,7 @@ ENTRY(aesni_dec)
13356 popl KLEN
13357 popl KEYP
13358 #endif
13359+ pax_force_retaddr
13360 ret
13361 ENDPROC(aesni_dec)
13362
13363@@ -2175,6 +2187,7 @@ _aesni_dec1:
13364 AESDEC KEY STATE
13365 movaps 0x70(TKEYP), KEY
13366 AESDECLAST KEY STATE
13367+ pax_force_retaddr
13368 ret
13369 ENDPROC(_aesni_dec1)
13370
13371@@ -2284,6 +2297,7 @@ _aesni_dec4:
13372 AESDECLAST KEY STATE2
13373 AESDECLAST KEY STATE3
13374 AESDECLAST KEY STATE4
13375+ pax_force_retaddr
13376 ret
13377 ENDPROC(_aesni_dec4)
13378
13379@@ -2342,6 +2356,7 @@ ENTRY(aesni_ecb_enc)
13380 popl KEYP
13381 popl LEN
13382 #endif
13383+ pax_force_retaddr
13384 ret
13385 ENDPROC(aesni_ecb_enc)
13386
13387@@ -2401,6 +2416,7 @@ ENTRY(aesni_ecb_dec)
13388 popl KEYP
13389 popl LEN
13390 #endif
13391+ pax_force_retaddr
13392 ret
13393 ENDPROC(aesni_ecb_dec)
13394
13395@@ -2443,6 +2459,7 @@ ENTRY(aesni_cbc_enc)
13396 popl LEN
13397 popl IVP
13398 #endif
13399+ pax_force_retaddr
13400 ret
13401 ENDPROC(aesni_cbc_enc)
13402
13403@@ -2534,6 +2551,7 @@ ENTRY(aesni_cbc_dec)
13404 popl LEN
13405 popl IVP
13406 #endif
13407+ pax_force_retaddr
13408 ret
13409 ENDPROC(aesni_cbc_dec)
13410
13411@@ -2561,6 +2579,7 @@ _aesni_inc_init:
13412 mov $1, TCTR_LOW
13413 MOVQ_R64_XMM TCTR_LOW INC
13414 MOVQ_R64_XMM CTR TCTR_LOW
13415+ pax_force_retaddr
13416 ret
13417 ENDPROC(_aesni_inc_init)
13418
13419@@ -2590,6 +2609,7 @@ _aesni_inc:
13420 .Linc_low:
13421 movaps CTR, IV
13422 PSHUFB_XMM BSWAP_MASK IV
13423+ pax_force_retaddr
13424 ret
13425 ENDPROC(_aesni_inc)
13426
13427@@ -2651,6 +2671,7 @@ ENTRY(aesni_ctr_enc)
13428 .Lctr_enc_ret:
13429 movups IV, (IVP)
13430 .Lctr_enc_just_ret:
13431+ pax_force_retaddr
13432 ret
13433 ENDPROC(aesni_ctr_enc)
13434
13435@@ -2777,6 +2798,7 @@ ENTRY(aesni_xts_crypt8)
13436 pxor INC, STATE4
13437 movdqu STATE4, 0x70(OUTP)
13438
13439+ pax_force_retaddr
13440 ret
13441 ENDPROC(aesni_xts_crypt8)
13442
13443diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13444index 246c670..466e2d6 100644
13445--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
13446+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13447@@ -21,6 +21,7 @@
13448 */
13449
13450 #include <linux/linkage.h>
13451+#include <asm/alternative-asm.h>
13452
13453 .file "blowfish-x86_64-asm.S"
13454 .text
13455@@ -149,9 +150,11 @@ ENTRY(__blowfish_enc_blk)
13456 jnz .L__enc_xor;
13457
13458 write_block();
13459+ pax_force_retaddr
13460 ret;
13461 .L__enc_xor:
13462 xor_block();
13463+ pax_force_retaddr
13464 ret;
13465 ENDPROC(__blowfish_enc_blk)
13466
13467@@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
13468
13469 movq %r11, %rbp;
13470
13471+ pax_force_retaddr
13472 ret;
13473 ENDPROC(blowfish_dec_blk)
13474
13475@@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
13476
13477 popq %rbx;
13478 popq %rbp;
13479+ pax_force_retaddr
13480 ret;
13481
13482 .L__enc_xor4:
13483@@ -341,6 +346,7 @@ ENTRY(__blowfish_enc_blk_4way)
13484
13485 popq %rbx;
13486 popq %rbp;
13487+ pax_force_retaddr
13488 ret;
13489 ENDPROC(__blowfish_enc_blk_4way)
13490
13491@@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
13492 popq %rbx;
13493 popq %rbp;
13494
13495+ pax_force_retaddr
13496 ret;
13497 ENDPROC(blowfish_dec_blk_4way)
13498diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13499index ce71f92..1dce7ec 100644
13500--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13501+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13502@@ -16,6 +16,7 @@
13503 */
13504
13505 #include <linux/linkage.h>
13506+#include <asm/alternative-asm.h>
13507
13508 #define CAMELLIA_TABLE_BYTE_LEN 272
13509
13510@@ -191,6 +192,7 @@ roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13511 roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
13512 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
13513 %rcx, (%r9));
13514+ pax_force_retaddr
13515 ret;
13516 ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13517
13518@@ -199,6 +201,7 @@ roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13519 roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
13520 %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
13521 %rax, (%r9));
13522+ pax_force_retaddr
13523 ret;
13524 ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13525
13526@@ -780,6 +783,7 @@ __camellia_enc_blk16:
13527 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13528 %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
13529
13530+ pax_force_retaddr
13531 ret;
13532
13533 .align 8
13534@@ -865,6 +869,7 @@ __camellia_dec_blk16:
13535 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13536 %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
13537
13538+ pax_force_retaddr
13539 ret;
13540
13541 .align 8
13542@@ -904,6 +909,7 @@ ENTRY(camellia_ecb_enc_16way)
13543 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13544 %xmm8, %rsi);
13545
13546+ pax_force_retaddr
13547 ret;
13548 ENDPROC(camellia_ecb_enc_16way)
13549
13550@@ -932,6 +938,7 @@ ENTRY(camellia_ecb_dec_16way)
13551 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13552 %xmm8, %rsi);
13553
13554+ pax_force_retaddr
13555 ret;
13556 ENDPROC(camellia_ecb_dec_16way)
13557
13558@@ -981,6 +988,7 @@ ENTRY(camellia_cbc_dec_16way)
13559 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13560 %xmm8, %rsi);
13561
13562+ pax_force_retaddr
13563 ret;
13564 ENDPROC(camellia_cbc_dec_16way)
13565
13566@@ -1092,6 +1100,7 @@ ENTRY(camellia_ctr_16way)
13567 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13568 %xmm8, %rsi);
13569
13570+ pax_force_retaddr
13571 ret;
13572 ENDPROC(camellia_ctr_16way)
13573
13574@@ -1234,6 +1243,7 @@ camellia_xts_crypt_16way:
13575 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13576 %xmm8, %rsi);
13577
13578+ pax_force_retaddr
13579 ret;
13580 ENDPROC(camellia_xts_crypt_16way)
13581
13582diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13583index 0e0b886..5a3123c 100644
13584--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13585+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13586@@ -11,6 +11,7 @@
13587 */
13588
13589 #include <linux/linkage.h>
13590+#include <asm/alternative-asm.h>
13591
13592 #define CAMELLIA_TABLE_BYTE_LEN 272
13593
13594@@ -230,6 +231,7 @@ roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13595 roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
13596 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
13597 %rcx, (%r9));
13598+ pax_force_retaddr
13599 ret;
13600 ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13601
13602@@ -238,6 +240,7 @@ roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13603 roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
13604 %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
13605 %rax, (%r9));
13606+ pax_force_retaddr
13607 ret;
13608 ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13609
13610@@ -820,6 +823,7 @@ __camellia_enc_blk32:
13611 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13612 %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
13613
13614+ pax_force_retaddr
13615 ret;
13616
13617 .align 8
13618@@ -905,6 +909,7 @@ __camellia_dec_blk32:
13619 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13620 %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
13621
13622+ pax_force_retaddr
13623 ret;
13624
13625 .align 8
13626@@ -948,6 +953,7 @@ ENTRY(camellia_ecb_enc_32way)
13627
13628 vzeroupper;
13629
13630+ pax_force_retaddr
13631 ret;
13632 ENDPROC(camellia_ecb_enc_32way)
13633
13634@@ -980,6 +986,7 @@ ENTRY(camellia_ecb_dec_32way)
13635
13636 vzeroupper;
13637
13638+ pax_force_retaddr
13639 ret;
13640 ENDPROC(camellia_ecb_dec_32way)
13641
13642@@ -1046,6 +1053,7 @@ ENTRY(camellia_cbc_dec_32way)
13643
13644 vzeroupper;
13645
13646+ pax_force_retaddr
13647 ret;
13648 ENDPROC(camellia_cbc_dec_32way)
13649
13650@@ -1184,6 +1192,7 @@ ENTRY(camellia_ctr_32way)
13651
13652 vzeroupper;
13653
13654+ pax_force_retaddr
13655 ret;
13656 ENDPROC(camellia_ctr_32way)
13657
13658@@ -1349,6 +1358,7 @@ camellia_xts_crypt_32way:
13659
13660 vzeroupper;
13661
13662+ pax_force_retaddr
13663 ret;
13664 ENDPROC(camellia_xts_crypt_32way)
13665
13666diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
13667index 310319c..db3d7b5 100644
13668--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
13669+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
13670@@ -21,6 +21,7 @@
13671 */
13672
13673 #include <linux/linkage.h>
13674+#include <asm/alternative-asm.h>
13675
13676 .file "camellia-x86_64-asm_64.S"
13677 .text
13678@@ -228,12 +229,14 @@ ENTRY(__camellia_enc_blk)
13679 enc_outunpack(mov, RT1);
13680
13681 movq RRBP, %rbp;
13682+ pax_force_retaddr
13683 ret;
13684
13685 .L__enc_xor:
13686 enc_outunpack(xor, RT1);
13687
13688 movq RRBP, %rbp;
13689+ pax_force_retaddr
13690 ret;
13691 ENDPROC(__camellia_enc_blk)
13692
13693@@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
13694 dec_outunpack();
13695
13696 movq RRBP, %rbp;
13697+ pax_force_retaddr
13698 ret;
13699 ENDPROC(camellia_dec_blk)
13700
13701@@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
13702
13703 movq RRBP, %rbp;
13704 popq %rbx;
13705+ pax_force_retaddr
13706 ret;
13707
13708 .L__enc2_xor:
13709@@ -470,6 +475,7 @@ ENTRY(__camellia_enc_blk_2way)
13710
13711 movq RRBP, %rbp;
13712 popq %rbx;
13713+ pax_force_retaddr
13714 ret;
13715 ENDPROC(__camellia_enc_blk_2way)
13716
13717@@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
13718
13719 movq RRBP, %rbp;
13720 movq RXOR, %rbx;
13721+ pax_force_retaddr
13722 ret;
13723 ENDPROC(camellia_dec_blk_2way)
13724diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13725index c35fd5d..2d8c7db 100644
13726--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13727+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13728@@ -24,6 +24,7 @@
13729 */
13730
13731 #include <linux/linkage.h>
13732+#include <asm/alternative-asm.h>
13733
13734 .file "cast5-avx-x86_64-asm_64.S"
13735
13736@@ -281,6 +282,7 @@ __cast5_enc_blk16:
13737 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13738 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13739
13740+ pax_force_retaddr
13741 ret;
13742 ENDPROC(__cast5_enc_blk16)
13743
13744@@ -352,6 +354,7 @@ __cast5_dec_blk16:
13745 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13746 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13747
13748+ pax_force_retaddr
13749 ret;
13750
13751 .L__skip_dec:
13752@@ -388,6 +391,7 @@ ENTRY(cast5_ecb_enc_16way)
13753 vmovdqu RR4, (6*4*4)(%r11);
13754 vmovdqu RL4, (7*4*4)(%r11);
13755
13756+ pax_force_retaddr
13757 ret;
13758 ENDPROC(cast5_ecb_enc_16way)
13759
13760@@ -420,6 +424,7 @@ ENTRY(cast5_ecb_dec_16way)
13761 vmovdqu RR4, (6*4*4)(%r11);
13762 vmovdqu RL4, (7*4*4)(%r11);
13763
13764+ pax_force_retaddr
13765 ret;
13766 ENDPROC(cast5_ecb_dec_16way)
13767
13768@@ -430,10 +435,10 @@ ENTRY(cast5_cbc_dec_16way)
13769 * %rdx: src
13770 */
13771
13772- pushq %r12;
13773+ pushq %r14;
13774
13775 movq %rsi, %r11;
13776- movq %rdx, %r12;
13777+ movq %rdx, %r14;
13778
13779 vmovdqu (0*16)(%rdx), RL1;
13780 vmovdqu (1*16)(%rdx), RR1;
13781@@ -447,16 +452,16 @@ ENTRY(cast5_cbc_dec_16way)
13782 call __cast5_dec_blk16;
13783
13784 /* xor with src */
13785- vmovq (%r12), RX;
13786+ vmovq (%r14), RX;
13787 vpshufd $0x4f, RX, RX;
13788 vpxor RX, RR1, RR1;
13789- vpxor 0*16+8(%r12), RL1, RL1;
13790- vpxor 1*16+8(%r12), RR2, RR2;
13791- vpxor 2*16+8(%r12), RL2, RL2;
13792- vpxor 3*16+8(%r12), RR3, RR3;
13793- vpxor 4*16+8(%r12), RL3, RL3;
13794- vpxor 5*16+8(%r12), RR4, RR4;
13795- vpxor 6*16+8(%r12), RL4, RL4;
13796+ vpxor 0*16+8(%r14), RL1, RL1;
13797+ vpxor 1*16+8(%r14), RR2, RR2;
13798+ vpxor 2*16+8(%r14), RL2, RL2;
13799+ vpxor 3*16+8(%r14), RR3, RR3;
13800+ vpxor 4*16+8(%r14), RL3, RL3;
13801+ vpxor 5*16+8(%r14), RR4, RR4;
13802+ vpxor 6*16+8(%r14), RL4, RL4;
13803
13804 vmovdqu RR1, (0*16)(%r11);
13805 vmovdqu RL1, (1*16)(%r11);
13806@@ -467,8 +472,9 @@ ENTRY(cast5_cbc_dec_16way)
13807 vmovdqu RR4, (6*16)(%r11);
13808 vmovdqu RL4, (7*16)(%r11);
13809
13810- popq %r12;
13811+ popq %r14;
13812
13813+ pax_force_retaddr
13814 ret;
13815 ENDPROC(cast5_cbc_dec_16way)
13816
13817@@ -480,10 +486,10 @@ ENTRY(cast5_ctr_16way)
13818 * %rcx: iv (big endian, 64bit)
13819 */
13820
13821- pushq %r12;
13822+ pushq %r14;
13823
13824 movq %rsi, %r11;
13825- movq %rdx, %r12;
13826+ movq %rdx, %r14;
13827
13828 vpcmpeqd RTMP, RTMP, RTMP;
13829 vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
13830@@ -523,14 +529,14 @@ ENTRY(cast5_ctr_16way)
13831 call __cast5_enc_blk16;
13832
13833 /* dst = src ^ iv */
13834- vpxor (0*16)(%r12), RR1, RR1;
13835- vpxor (1*16)(%r12), RL1, RL1;
13836- vpxor (2*16)(%r12), RR2, RR2;
13837- vpxor (3*16)(%r12), RL2, RL2;
13838- vpxor (4*16)(%r12), RR3, RR3;
13839- vpxor (5*16)(%r12), RL3, RL3;
13840- vpxor (6*16)(%r12), RR4, RR4;
13841- vpxor (7*16)(%r12), RL4, RL4;
13842+ vpxor (0*16)(%r14), RR1, RR1;
13843+ vpxor (1*16)(%r14), RL1, RL1;
13844+ vpxor (2*16)(%r14), RR2, RR2;
13845+ vpxor (3*16)(%r14), RL2, RL2;
13846+ vpxor (4*16)(%r14), RR3, RR3;
13847+ vpxor (5*16)(%r14), RL3, RL3;
13848+ vpxor (6*16)(%r14), RR4, RR4;
13849+ vpxor (7*16)(%r14), RL4, RL4;
13850 vmovdqu RR1, (0*16)(%r11);
13851 vmovdqu RL1, (1*16)(%r11);
13852 vmovdqu RR2, (2*16)(%r11);
13853@@ -540,7 +546,8 @@ ENTRY(cast5_ctr_16way)
13854 vmovdqu RR4, (6*16)(%r11);
13855 vmovdqu RL4, (7*16)(%r11);
13856
13857- popq %r12;
13858+ popq %r14;
13859
13860+ pax_force_retaddr
13861 ret;
13862 ENDPROC(cast5_ctr_16way)
13863diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13864index e3531f8..e123f35 100644
13865--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13866+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13867@@ -24,6 +24,7 @@
13868 */
13869
13870 #include <linux/linkage.h>
13871+#include <asm/alternative-asm.h>
13872 #include "glue_helper-asm-avx.S"
13873
13874 .file "cast6-avx-x86_64-asm_64.S"
13875@@ -295,6 +296,7 @@ __cast6_enc_blk8:
13876 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13877 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13878
13879+ pax_force_retaddr
13880 ret;
13881 ENDPROC(__cast6_enc_blk8)
13882
13883@@ -340,6 +342,7 @@ __cast6_dec_blk8:
13884 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13885 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13886
13887+ pax_force_retaddr
13888 ret;
13889 ENDPROC(__cast6_dec_blk8)
13890
13891@@ -358,6 +361,7 @@ ENTRY(cast6_ecb_enc_8way)
13892
13893 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13894
13895+ pax_force_retaddr
13896 ret;
13897 ENDPROC(cast6_ecb_enc_8way)
13898
13899@@ -376,6 +380,7 @@ ENTRY(cast6_ecb_dec_8way)
13900
13901 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13902
13903+ pax_force_retaddr
13904 ret;
13905 ENDPROC(cast6_ecb_dec_8way)
13906
13907@@ -386,19 +391,20 @@ ENTRY(cast6_cbc_dec_8way)
13908 * %rdx: src
13909 */
13910
13911- pushq %r12;
13912+ pushq %r14;
13913
13914 movq %rsi, %r11;
13915- movq %rdx, %r12;
13916+ movq %rdx, %r14;
13917
13918 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13919
13920 call __cast6_dec_blk8;
13921
13922- store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13923+ store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13924
13925- popq %r12;
13926+ popq %r14;
13927
13928+ pax_force_retaddr
13929 ret;
13930 ENDPROC(cast6_cbc_dec_8way)
13931
13932@@ -410,20 +416,21 @@ ENTRY(cast6_ctr_8way)
13933 * %rcx: iv (little endian, 128bit)
13934 */
13935
13936- pushq %r12;
13937+ pushq %r14;
13938
13939 movq %rsi, %r11;
13940- movq %rdx, %r12;
13941+ movq %rdx, %r14;
13942
13943 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
13944 RD2, RX, RKR, RKM);
13945
13946 call __cast6_enc_blk8;
13947
13948- store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13949+ store_ctr_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13950
13951- popq %r12;
13952+ popq %r14;
13953
13954+ pax_force_retaddr
13955 ret;
13956 ENDPROC(cast6_ctr_8way)
13957
13958@@ -446,6 +453,7 @@ ENTRY(cast6_xts_enc_8way)
13959 /* dst <= regs xor IVs(in dst) */
13960 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13961
13962+ pax_force_retaddr
13963 ret;
13964 ENDPROC(cast6_xts_enc_8way)
13965
13966@@ -468,5 +476,6 @@ ENTRY(cast6_xts_dec_8way)
13967 /* dst <= regs xor IVs(in dst) */
13968 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13969
13970+ pax_force_retaddr
13971 ret;
13972 ENDPROC(cast6_xts_dec_8way)
13973diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13974index 26d49eb..8bf39c8 100644
13975--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13976+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13977@@ -45,6 +45,7 @@
13978
13979 #include <asm/inst.h>
13980 #include <linux/linkage.h>
13981+#include <asm/alternative-asm.h>
13982
13983 ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
13984
13985@@ -309,6 +310,7 @@ do_return:
13986 popq %rsi
13987 popq %rdi
13988 popq %rbx
13989+ pax_force_retaddr
13990 ret
13991
13992 ################################################################
13993@@ -330,7 +332,7 @@ ENDPROC(crc_pcl)
13994 ## PCLMULQDQ tables
13995 ## Table is 128 entries x 2 words (8 bytes) each
13996 ################################################################
13997-.section .rotata, "a", %progbits
13998+.section .rodata, "a", %progbits
13999 .align 8
14000 K_table:
14001 .long 0x493c7d27, 0x00000001
14002diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
14003index 5d1e007..098cb4f 100644
14004--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
14005+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
14006@@ -18,6 +18,7 @@
14007
14008 #include <linux/linkage.h>
14009 #include <asm/inst.h>
14010+#include <asm/alternative-asm.h>
14011
14012 .data
14013
14014@@ -89,6 +90,7 @@ __clmul_gf128mul_ble:
14015 psrlq $1, T2
14016 pxor T2, T1
14017 pxor T1, DATA
14018+ pax_force_retaddr
14019 ret
14020 ENDPROC(__clmul_gf128mul_ble)
14021
14022@@ -101,6 +103,7 @@ ENTRY(clmul_ghash_mul)
14023 call __clmul_gf128mul_ble
14024 PSHUFB_XMM BSWAP DATA
14025 movups DATA, (%rdi)
14026+ pax_force_retaddr
14027 ret
14028 ENDPROC(clmul_ghash_mul)
14029
14030@@ -128,5 +131,6 @@ ENTRY(clmul_ghash_update)
14031 PSHUFB_XMM BSWAP DATA
14032 movups DATA, (%rdi)
14033 .Lupdate_just_ret:
14034+ pax_force_retaddr
14035 ret
14036 ENDPROC(clmul_ghash_update)
14037diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
14038index 9279e0b..c4b3d2c 100644
14039--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
14040+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
14041@@ -1,4 +1,5 @@
14042 #include <linux/linkage.h>
14043+#include <asm/alternative-asm.h>
14044
14045 # enter salsa20_encrypt_bytes
14046 ENTRY(salsa20_encrypt_bytes)
14047@@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
14048 add %r11,%rsp
14049 mov %rdi,%rax
14050 mov %rsi,%rdx
14051+ pax_force_retaddr
14052 ret
14053 # bytesatleast65:
14054 ._bytesatleast65:
14055@@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
14056 add %r11,%rsp
14057 mov %rdi,%rax
14058 mov %rsi,%rdx
14059+ pax_force_retaddr
14060 ret
14061 ENDPROC(salsa20_keysetup)
14062
14063@@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
14064 add %r11,%rsp
14065 mov %rdi,%rax
14066 mov %rsi,%rdx
14067+ pax_force_retaddr
14068 ret
14069 ENDPROC(salsa20_ivsetup)
14070diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14071index 2f202f4..d9164d6 100644
14072--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14073+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14074@@ -24,6 +24,7 @@
14075 */
14076
14077 #include <linux/linkage.h>
14078+#include <asm/alternative-asm.h>
14079 #include "glue_helper-asm-avx.S"
14080
14081 .file "serpent-avx-x86_64-asm_64.S"
14082@@ -618,6 +619,7 @@ __serpent_enc_blk8_avx:
14083 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14084 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14085
14086+ pax_force_retaddr
14087 ret;
14088 ENDPROC(__serpent_enc_blk8_avx)
14089
14090@@ -672,6 +674,7 @@ __serpent_dec_blk8_avx:
14091 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14092 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14093
14094+ pax_force_retaddr
14095 ret;
14096 ENDPROC(__serpent_dec_blk8_avx)
14097
14098@@ -688,6 +691,7 @@ ENTRY(serpent_ecb_enc_8way_avx)
14099
14100 store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14101
14102+ pax_force_retaddr
14103 ret;
14104 ENDPROC(serpent_ecb_enc_8way_avx)
14105
14106@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_8way_avx)
14107
14108 store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14109
14110+ pax_force_retaddr
14111 ret;
14112 ENDPROC(serpent_ecb_dec_8way_avx)
14113
14114@@ -720,6 +725,7 @@ ENTRY(serpent_cbc_dec_8way_avx)
14115
14116 store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14117
14118+ pax_force_retaddr
14119 ret;
14120 ENDPROC(serpent_cbc_dec_8way_avx)
14121
14122@@ -738,6 +744,7 @@ ENTRY(serpent_ctr_8way_avx)
14123
14124 store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14125
14126+ pax_force_retaddr
14127 ret;
14128 ENDPROC(serpent_ctr_8way_avx)
14129
14130@@ -758,6 +765,7 @@ ENTRY(serpent_xts_enc_8way_avx)
14131 /* dst <= regs xor IVs(in dst) */
14132 store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14133
14134+ pax_force_retaddr
14135 ret;
14136 ENDPROC(serpent_xts_enc_8way_avx)
14137
14138@@ -778,5 +786,6 @@ ENTRY(serpent_xts_dec_8way_avx)
14139 /* dst <= regs xor IVs(in dst) */
14140 store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14141
14142+ pax_force_retaddr
14143 ret;
14144 ENDPROC(serpent_xts_dec_8way_avx)
14145diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
14146index b222085..abd483c 100644
14147--- a/arch/x86/crypto/serpent-avx2-asm_64.S
14148+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
14149@@ -15,6 +15,7 @@
14150 */
14151
14152 #include <linux/linkage.h>
14153+#include <asm/alternative-asm.h>
14154 #include "glue_helper-asm-avx2.S"
14155
14156 .file "serpent-avx2-asm_64.S"
14157@@ -610,6 +611,7 @@ __serpent_enc_blk16:
14158 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14159 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14160
14161+ pax_force_retaddr
14162 ret;
14163 ENDPROC(__serpent_enc_blk16)
14164
14165@@ -664,6 +666,7 @@ __serpent_dec_blk16:
14166 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14167 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14168
14169+ pax_force_retaddr
14170 ret;
14171 ENDPROC(__serpent_dec_blk16)
14172
14173@@ -684,6 +687,7 @@ ENTRY(serpent_ecb_enc_16way)
14174
14175 vzeroupper;
14176
14177+ pax_force_retaddr
14178 ret;
14179 ENDPROC(serpent_ecb_enc_16way)
14180
14181@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_16way)
14182
14183 vzeroupper;
14184
14185+ pax_force_retaddr
14186 ret;
14187 ENDPROC(serpent_ecb_dec_16way)
14188
14189@@ -725,6 +730,7 @@ ENTRY(serpent_cbc_dec_16way)
14190
14191 vzeroupper;
14192
14193+ pax_force_retaddr
14194 ret;
14195 ENDPROC(serpent_cbc_dec_16way)
14196
14197@@ -748,6 +754,7 @@ ENTRY(serpent_ctr_16way)
14198
14199 vzeroupper;
14200
14201+ pax_force_retaddr
14202 ret;
14203 ENDPROC(serpent_ctr_16way)
14204
14205@@ -772,6 +779,7 @@ ENTRY(serpent_xts_enc_16way)
14206
14207 vzeroupper;
14208
14209+ pax_force_retaddr
14210 ret;
14211 ENDPROC(serpent_xts_enc_16way)
14212
14213@@ -796,5 +804,6 @@ ENTRY(serpent_xts_dec_16way)
14214
14215 vzeroupper;
14216
14217+ pax_force_retaddr
14218 ret;
14219 ENDPROC(serpent_xts_dec_16way)
14220diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14221index acc066c..1559cc4 100644
14222--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14223+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14224@@ -25,6 +25,7 @@
14225 */
14226
14227 #include <linux/linkage.h>
14228+#include <asm/alternative-asm.h>
14229
14230 .file "serpent-sse2-x86_64-asm_64.S"
14231 .text
14232@@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
14233 write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14234 write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14235
14236+ pax_force_retaddr
14237 ret;
14238
14239 .L__enc_xor8:
14240 xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14241 xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14242
14243+ pax_force_retaddr
14244 ret;
14245 ENDPROC(__serpent_enc_blk_8way)
14246
14247@@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
14248 write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14249 write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14250
14251+ pax_force_retaddr
14252 ret;
14253 ENDPROC(serpent_dec_blk_8way)
14254diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
14255index a410950..9dfe7ad 100644
14256--- a/arch/x86/crypto/sha1_ssse3_asm.S
14257+++ b/arch/x86/crypto/sha1_ssse3_asm.S
14258@@ -29,6 +29,7 @@
14259 */
14260
14261 #include <linux/linkage.h>
14262+#include <asm/alternative-asm.h>
14263
14264 #define CTX %rdi // arg1
14265 #define BUF %rsi // arg2
14266@@ -75,9 +76,9 @@
14267
14268 push %rbx
14269 push %rbp
14270- push %r12
14271+ push %r14
14272
14273- mov %rsp, %r12
14274+ mov %rsp, %r14
14275 sub $64, %rsp # allocate workspace
14276 and $~15, %rsp # align stack
14277
14278@@ -99,11 +100,12 @@
14279 xor %rax, %rax
14280 rep stosq
14281
14282- mov %r12, %rsp # deallocate workspace
14283+ mov %r14, %rsp # deallocate workspace
14284
14285- pop %r12
14286+ pop %r14
14287 pop %rbp
14288 pop %rbx
14289+ pax_force_retaddr
14290 ret
14291
14292 ENDPROC(\name)
14293diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
14294index 642f156..51a513c 100644
14295--- a/arch/x86/crypto/sha256-avx-asm.S
14296+++ b/arch/x86/crypto/sha256-avx-asm.S
14297@@ -49,6 +49,7 @@
14298
14299 #ifdef CONFIG_AS_AVX
14300 #include <linux/linkage.h>
14301+#include <asm/alternative-asm.h>
14302
14303 ## assume buffers not aligned
14304 #define VMOVDQ vmovdqu
14305@@ -460,6 +461,7 @@ done_hash:
14306 popq %r13
14307 popq %rbp
14308 popq %rbx
14309+ pax_force_retaddr
14310 ret
14311 ENDPROC(sha256_transform_avx)
14312
14313diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
14314index 9e86944..3795e6a 100644
14315--- a/arch/x86/crypto/sha256-avx2-asm.S
14316+++ b/arch/x86/crypto/sha256-avx2-asm.S
14317@@ -50,6 +50,7 @@
14318
14319 #ifdef CONFIG_AS_AVX2
14320 #include <linux/linkage.h>
14321+#include <asm/alternative-asm.h>
14322
14323 ## assume buffers not aligned
14324 #define VMOVDQ vmovdqu
14325@@ -720,6 +721,7 @@ done_hash:
14326 popq %r12
14327 popq %rbp
14328 popq %rbx
14329+ pax_force_retaddr
14330 ret
14331 ENDPROC(sha256_transform_rorx)
14332
14333diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
14334index f833b74..8c62a9e 100644
14335--- a/arch/x86/crypto/sha256-ssse3-asm.S
14336+++ b/arch/x86/crypto/sha256-ssse3-asm.S
14337@@ -47,6 +47,7 @@
14338 ########################################################################
14339
14340 #include <linux/linkage.h>
14341+#include <asm/alternative-asm.h>
14342
14343 ## assume buffers not aligned
14344 #define MOVDQ movdqu
14345@@ -471,6 +472,7 @@ done_hash:
14346 popq %rbp
14347 popq %rbx
14348
14349+ pax_force_retaddr
14350 ret
14351 ENDPROC(sha256_transform_ssse3)
14352
14353diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
14354index 974dde9..a823ff9 100644
14355--- a/arch/x86/crypto/sha512-avx-asm.S
14356+++ b/arch/x86/crypto/sha512-avx-asm.S
14357@@ -49,6 +49,7 @@
14358
14359 #ifdef CONFIG_AS_AVX
14360 #include <linux/linkage.h>
14361+#include <asm/alternative-asm.h>
14362
14363 .text
14364
14365@@ -364,6 +365,7 @@ updateblock:
14366 mov frame_RSPSAVE(%rsp), %rsp
14367
14368 nowork:
14369+ pax_force_retaddr
14370 ret
14371 ENDPROC(sha512_transform_avx)
14372
14373diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
14374index 568b961..ed20c37 100644
14375--- a/arch/x86/crypto/sha512-avx2-asm.S
14376+++ b/arch/x86/crypto/sha512-avx2-asm.S
14377@@ -51,6 +51,7 @@
14378
14379 #ifdef CONFIG_AS_AVX2
14380 #include <linux/linkage.h>
14381+#include <asm/alternative-asm.h>
14382
14383 .text
14384
14385@@ -678,6 +679,7 @@ done_hash:
14386
14387 # Restore Stack Pointer
14388 mov frame_RSPSAVE(%rsp), %rsp
14389+ pax_force_retaddr
14390 ret
14391 ENDPROC(sha512_transform_rorx)
14392
14393diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
14394index fb56855..6edd768 100644
14395--- a/arch/x86/crypto/sha512-ssse3-asm.S
14396+++ b/arch/x86/crypto/sha512-ssse3-asm.S
14397@@ -48,6 +48,7 @@
14398 ########################################################################
14399
14400 #include <linux/linkage.h>
14401+#include <asm/alternative-asm.h>
14402
14403 .text
14404
14405@@ -363,6 +364,7 @@ updateblock:
14406 mov frame_RSPSAVE(%rsp), %rsp
14407
14408 nowork:
14409+ pax_force_retaddr
14410 ret
14411 ENDPROC(sha512_transform_ssse3)
14412
14413diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14414index 0505813..b067311 100644
14415--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14416+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14417@@ -24,6 +24,7 @@
14418 */
14419
14420 #include <linux/linkage.h>
14421+#include <asm/alternative-asm.h>
14422 #include "glue_helper-asm-avx.S"
14423
14424 .file "twofish-avx-x86_64-asm_64.S"
14425@@ -284,6 +285,7 @@ __twofish_enc_blk8:
14426 outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
14427 outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
14428
14429+ pax_force_retaddr
14430 ret;
14431 ENDPROC(__twofish_enc_blk8)
14432
14433@@ -324,6 +326,7 @@ __twofish_dec_blk8:
14434 outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
14435 outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
14436
14437+ pax_force_retaddr
14438 ret;
14439 ENDPROC(__twofish_dec_blk8)
14440
14441@@ -342,6 +345,7 @@ ENTRY(twofish_ecb_enc_8way)
14442
14443 store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14444
14445+ pax_force_retaddr
14446 ret;
14447 ENDPROC(twofish_ecb_enc_8way)
14448
14449@@ -360,6 +364,7 @@ ENTRY(twofish_ecb_dec_8way)
14450
14451 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14452
14453+ pax_force_retaddr
14454 ret;
14455 ENDPROC(twofish_ecb_dec_8way)
14456
14457@@ -370,19 +375,20 @@ ENTRY(twofish_cbc_dec_8way)
14458 * %rdx: src
14459 */
14460
14461- pushq %r12;
14462+ pushq %r14;
14463
14464 movq %rsi, %r11;
14465- movq %rdx, %r12;
14466+ movq %rdx, %r14;
14467
14468 load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14469
14470 call __twofish_dec_blk8;
14471
14472- store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14473+ store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14474
14475- popq %r12;
14476+ popq %r14;
14477
14478+ pax_force_retaddr
14479 ret;
14480 ENDPROC(twofish_cbc_dec_8way)
14481
14482@@ -394,20 +400,21 @@ ENTRY(twofish_ctr_8way)
14483 * %rcx: iv (little endian, 128bit)
14484 */
14485
14486- pushq %r12;
14487+ pushq %r14;
14488
14489 movq %rsi, %r11;
14490- movq %rdx, %r12;
14491+ movq %rdx, %r14;
14492
14493 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
14494 RD2, RX0, RX1, RY0);
14495
14496 call __twofish_enc_blk8;
14497
14498- store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14499+ store_ctr_8way(%r14, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14500
14501- popq %r12;
14502+ popq %r14;
14503
14504+ pax_force_retaddr
14505 ret;
14506 ENDPROC(twofish_ctr_8way)
14507
14508@@ -430,6 +437,7 @@ ENTRY(twofish_xts_enc_8way)
14509 /* dst <= regs xor IVs(in dst) */
14510 store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14511
14512+ pax_force_retaddr
14513 ret;
14514 ENDPROC(twofish_xts_enc_8way)
14515
14516@@ -452,5 +460,6 @@ ENTRY(twofish_xts_dec_8way)
14517 /* dst <= regs xor IVs(in dst) */
14518 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14519
14520+ pax_force_retaddr
14521 ret;
14522 ENDPROC(twofish_xts_dec_8way)
14523diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14524index 1c3b7ce..02f578d 100644
14525--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14526+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14527@@ -21,6 +21,7 @@
14528 */
14529
14530 #include <linux/linkage.h>
14531+#include <asm/alternative-asm.h>
14532
14533 .file "twofish-x86_64-asm-3way.S"
14534 .text
14535@@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
14536 popq %r13;
14537 popq %r14;
14538 popq %r15;
14539+ pax_force_retaddr
14540 ret;
14541
14542 .L__enc_xor3:
14543@@ -269,6 +271,7 @@ ENTRY(__twofish_enc_blk_3way)
14544 popq %r13;
14545 popq %r14;
14546 popq %r15;
14547+ pax_force_retaddr
14548 ret;
14549 ENDPROC(__twofish_enc_blk_3way)
14550
14551@@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
14552 popq %r13;
14553 popq %r14;
14554 popq %r15;
14555+ pax_force_retaddr
14556 ret;
14557 ENDPROC(twofish_dec_blk_3way)
14558diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
14559index a039d21..524b8b2 100644
14560--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
14561+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
14562@@ -22,6 +22,7 @@
14563
14564 #include <linux/linkage.h>
14565 #include <asm/asm-offsets.h>
14566+#include <asm/alternative-asm.h>
14567
14568 #define a_offset 0
14569 #define b_offset 4
14570@@ -265,6 +266,7 @@ ENTRY(twofish_enc_blk)
14571
14572 popq R1
14573 movq $1,%rax
14574+ pax_force_retaddr
14575 ret
14576 ENDPROC(twofish_enc_blk)
14577
14578@@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
14579
14580 popq R1
14581 movq $1,%rax
14582+ pax_force_retaddr
14583 ret
14584 ENDPROC(twofish_dec_blk)
14585diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
14586index ae6aad1..719d6d9 100644
14587--- a/arch/x86/ia32/ia32_aout.c
14588+++ b/arch/x86/ia32/ia32_aout.c
14589@@ -153,6 +153,8 @@ static int aout_core_dump(struct coredump_params *cprm)
14590 unsigned long dump_start, dump_size;
14591 struct user32 dump;
14592
14593+ memset(&dump, 0, sizeof(dump));
14594+
14595 fs = get_fs();
14596 set_fs(KERNEL_DS);
14597 has_dumped = 1;
14598diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
14599index d0165c9..0d5639b 100644
14600--- a/arch/x86/ia32/ia32_signal.c
14601+++ b/arch/x86/ia32/ia32_signal.c
14602@@ -218,7 +218,7 @@ asmlinkage long sys32_sigreturn(void)
14603 if (__get_user(set.sig[0], &frame->sc.oldmask)
14604 || (_COMPAT_NSIG_WORDS > 1
14605 && __copy_from_user((((char *) &set.sig) + 4),
14606- &frame->extramask,
14607+ frame->extramask,
14608 sizeof(frame->extramask))))
14609 goto badframe;
14610
14611@@ -338,7 +338,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
14612 sp -= frame_size;
14613 /* Align the stack pointer according to the i386 ABI,
14614 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
14615- sp = ((sp + 4) & -16ul) - 4;
14616+ sp = ((sp - 12) & -16ul) - 4;
14617 return (void __user *) sp;
14618 }
14619
14620@@ -383,10 +383,10 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14621 } else {
14622 /* Return stub is in 32bit vsyscall page */
14623 if (current->mm->context.vdso)
14624- restorer = current->mm->context.vdso +
14625- selected_vdso32->sym___kernel_sigreturn;
14626+ restorer = (void __force_user *)(current->mm->context.vdso +
14627+ selected_vdso32->sym___kernel_sigreturn);
14628 else
14629- restorer = &frame->retcode;
14630+ restorer = frame->retcode;
14631 }
14632
14633 put_user_try {
14634@@ -396,7 +396,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14635 * These are actually not used anymore, but left because some
14636 * gdb versions depend on them as a marker.
14637 */
14638- put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14639+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14640 } put_user_catch(err);
14641
14642 if (err)
14643@@ -438,7 +438,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14644 0xb8,
14645 __NR_ia32_rt_sigreturn,
14646 0x80cd,
14647- 0,
14648+ 0
14649 };
14650
14651 frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
14652@@ -461,16 +461,19 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14653
14654 if (ksig->ka.sa.sa_flags & SA_RESTORER)
14655 restorer = ksig->ka.sa.sa_restorer;
14656+ else if (current->mm->context.vdso)
14657+ /* Return stub is in 32bit vsyscall page */
14658+ restorer = (void __force_user *)(current->mm->context.vdso +
14659+ selected_vdso32->sym___kernel_rt_sigreturn);
14660 else
14661- restorer = current->mm->context.vdso +
14662- selected_vdso32->sym___kernel_rt_sigreturn;
14663+ restorer = frame->retcode;
14664 put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
14665
14666 /*
14667 * Not actually used anymore, but left because some gdb
14668 * versions need it.
14669 */
14670- put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14671+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14672 } put_user_catch(err);
14673
14674 err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
14675diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
14676index 156ebca..9591cf0 100644
14677--- a/arch/x86/ia32/ia32entry.S
14678+++ b/arch/x86/ia32/ia32entry.S
14679@@ -15,8 +15,10 @@
14680 #include <asm/irqflags.h>
14681 #include <asm/asm.h>
14682 #include <asm/smap.h>
14683+#include <asm/pgtable.h>
14684 #include <linux/linkage.h>
14685 #include <linux/err.h>
14686+#include <asm/alternative-asm.h>
14687
14688 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
14689 #include <linux/elf-em.h>
14690@@ -62,12 +64,12 @@
14691 */
14692 .macro LOAD_ARGS32 offset, _r9=0
14693 .if \_r9
14694- movl \offset+16(%rsp),%r9d
14695+ movl \offset+R9(%rsp),%r9d
14696 .endif
14697- movl \offset+40(%rsp),%ecx
14698- movl \offset+48(%rsp),%edx
14699- movl \offset+56(%rsp),%esi
14700- movl \offset+64(%rsp),%edi
14701+ movl \offset+RCX(%rsp),%ecx
14702+ movl \offset+RDX(%rsp),%edx
14703+ movl \offset+RSI(%rsp),%esi
14704+ movl \offset+RDI(%rsp),%edi
14705 movl %eax,%eax /* zero extension */
14706 .endm
14707
14708@@ -96,6 +98,32 @@ ENTRY(native_irq_enable_sysexit)
14709 ENDPROC(native_irq_enable_sysexit)
14710 #endif
14711
14712+ .macro pax_enter_kernel_user
14713+ pax_set_fptr_mask
14714+#ifdef CONFIG_PAX_MEMORY_UDEREF
14715+ call pax_enter_kernel_user
14716+#endif
14717+ .endm
14718+
14719+ .macro pax_exit_kernel_user
14720+#ifdef CONFIG_PAX_MEMORY_UDEREF
14721+ call pax_exit_kernel_user
14722+#endif
14723+#ifdef CONFIG_PAX_RANDKSTACK
14724+ pushq %rax
14725+ pushq %r11
14726+ call pax_randomize_kstack
14727+ popq %r11
14728+ popq %rax
14729+#endif
14730+ .endm
14731+
14732+ .macro pax_erase_kstack
14733+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14734+ call pax_erase_kstack
14735+#endif
14736+ .endm
14737+
14738 /*
14739 * 32bit SYSENTER instruction entry.
14740 *
14741@@ -122,12 +150,6 @@ ENTRY(ia32_sysenter_target)
14742 CFI_REGISTER rsp,rbp
14743 SWAPGS_UNSAFE_STACK
14744 movq PER_CPU_VAR(kernel_stack), %rsp
14745- addq $(KERNEL_STACK_OFFSET),%rsp
14746- /*
14747- * No need to follow this irqs on/off section: the syscall
14748- * disabled irqs, here we enable it straight after entry:
14749- */
14750- ENABLE_INTERRUPTS(CLBR_NONE)
14751 movl %ebp,%ebp /* zero extension */
14752 pushq_cfi $__USER32_DS
14753 /*CFI_REL_OFFSET ss,0*/
14754@@ -135,23 +157,46 @@ ENTRY(ia32_sysenter_target)
14755 CFI_REL_OFFSET rsp,0
14756 pushfq_cfi
14757 /*CFI_REL_OFFSET rflags,0*/
14758- movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
14759- CFI_REGISTER rip,r10
14760+ orl $X86_EFLAGS_IF,(%rsp)
14761+ GET_THREAD_INFO(%r11)
14762+ movl TI_sysenter_return(%r11), %r11d
14763+ CFI_REGISTER rip,r11
14764 pushq_cfi $__USER32_CS
14765 /*CFI_REL_OFFSET cs,0*/
14766 movl %eax, %eax
14767- pushq_cfi %r10
14768+ pushq_cfi %r11
14769 CFI_REL_OFFSET rip,0
14770 pushq_cfi %rax
14771 cld
14772 SAVE_ARGS 0,1,0
14773+ pax_enter_kernel_user
14774+
14775+#ifdef CONFIG_PAX_RANDKSTACK
14776+ pax_erase_kstack
14777+#endif
14778+
14779+ /*
14780+ * No need to follow this irqs on/off section: the syscall
14781+ * disabled irqs, here we enable it straight after entry:
14782+ */
14783+ ENABLE_INTERRUPTS(CLBR_NONE)
14784 /* no need to do an access_ok check here because rbp has been
14785 32bit zero extended */
14786+
14787+#ifdef CONFIG_PAX_MEMORY_UDEREF
14788+ addq pax_user_shadow_base,%rbp
14789+ ASM_PAX_OPEN_USERLAND
14790+#endif
14791+
14792 ASM_STAC
14793 1: movl (%rbp),%ebp
14794 _ASM_EXTABLE(1b,ia32_badarg)
14795 ASM_CLAC
14796
14797+#ifdef CONFIG_PAX_MEMORY_UDEREF
14798+ ASM_PAX_CLOSE_USERLAND
14799+#endif
14800+
14801 /*
14802 * Sysenter doesn't filter flags, so we need to clear NT
14803 * ourselves. To save a few cycles, we can check whether
14804@@ -161,8 +206,9 @@ ENTRY(ia32_sysenter_target)
14805 jnz sysenter_fix_flags
14806 sysenter_flags_fixed:
14807
14808- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14809- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14810+ GET_THREAD_INFO(%r11)
14811+ orl $TS_COMPAT,TI_status(%r11)
14812+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14813 CFI_REMEMBER_STATE
14814 jnz sysenter_tracesys
14815 cmpq $(IA32_NR_syscalls-1),%rax
14816@@ -172,14 +218,17 @@ sysenter_do_call:
14817 sysenter_dispatch:
14818 call *ia32_sys_call_table(,%rax,8)
14819 movq %rax,RAX-ARGOFFSET(%rsp)
14820+ GET_THREAD_INFO(%r11)
14821 DISABLE_INTERRUPTS(CLBR_NONE)
14822 TRACE_IRQS_OFF
14823- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14824+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14825 jnz sysexit_audit
14826 sysexit_from_sys_call:
14827- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14828+ pax_exit_kernel_user
14829+ pax_erase_kstack
14830+ andl $~TS_COMPAT,TI_status(%r11)
14831 /* clear IF, that popfq doesn't enable interrupts early */
14832- andl $~0x200,EFLAGS-ARGOFFSET(%rsp)
14833+ andl $~X86_EFLAGS_IF,EFLAGS-ARGOFFSET(%rsp)
14834 movl RIP-ARGOFFSET(%rsp),%edx /* User %eip */
14835 CFI_REGISTER rip,rdx
14836 RESTORE_ARGS 0,24,0,0,0,0
14837@@ -205,6 +254,9 @@ sysexit_from_sys_call:
14838 movl %ebx,%esi /* 2nd arg: 1st syscall arg */
14839 movl %eax,%edi /* 1st arg: syscall number */
14840 call __audit_syscall_entry
14841+
14842+ pax_erase_kstack
14843+
14844 movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
14845 cmpq $(IA32_NR_syscalls-1),%rax
14846 ja ia32_badsys
14847@@ -216,7 +268,7 @@ sysexit_from_sys_call:
14848 .endm
14849
14850 .macro auditsys_exit exit
14851- testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14852+ testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14853 jnz ia32_ret_from_sys_call
14854 TRACE_IRQS_ON
14855 ENABLE_INTERRUPTS(CLBR_NONE)
14856@@ -227,11 +279,12 @@ sysexit_from_sys_call:
14857 1: setbe %al /* 1 if error, 0 if not */
14858 movzbl %al,%edi /* zero-extend that into %edi */
14859 call __audit_syscall_exit
14860+ GET_THREAD_INFO(%r11)
14861 movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
14862 movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
14863 DISABLE_INTERRUPTS(CLBR_NONE)
14864 TRACE_IRQS_OFF
14865- testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14866+ testl %edi,TI_flags(%r11)
14867 jz \exit
14868 CLEAR_RREGS -ARGOFFSET
14869 jmp int_with_check
14870@@ -253,7 +306,7 @@ sysenter_fix_flags:
14871
14872 sysenter_tracesys:
14873 #ifdef CONFIG_AUDITSYSCALL
14874- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14875+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14876 jz sysenter_auditsys
14877 #endif
14878 SAVE_REST
14879@@ -265,6 +318,9 @@ sysenter_tracesys:
14880 RESTORE_REST
14881 cmpq $(IA32_NR_syscalls-1),%rax
14882 ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
14883+
14884+ pax_erase_kstack
14885+
14886 jmp sysenter_do_call
14887 CFI_ENDPROC
14888 ENDPROC(ia32_sysenter_target)
14889@@ -292,19 +348,25 @@ ENDPROC(ia32_sysenter_target)
14890 ENTRY(ia32_cstar_target)
14891 CFI_STARTPROC32 simple
14892 CFI_SIGNAL_FRAME
14893- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
14894+ CFI_DEF_CFA rsp,0
14895 CFI_REGISTER rip,rcx
14896 /*CFI_REGISTER rflags,r11*/
14897 SWAPGS_UNSAFE_STACK
14898 movl %esp,%r8d
14899 CFI_REGISTER rsp,r8
14900 movq PER_CPU_VAR(kernel_stack),%rsp
14901+ SAVE_ARGS 8*6,0,0
14902+ pax_enter_kernel_user
14903+
14904+#ifdef CONFIG_PAX_RANDKSTACK
14905+ pax_erase_kstack
14906+#endif
14907+
14908 /*
14909 * No need to follow this irqs on/off section: the syscall
14910 * disabled irqs and here we enable it straight after entry:
14911 */
14912 ENABLE_INTERRUPTS(CLBR_NONE)
14913- SAVE_ARGS 8,0,0
14914 movl %eax,%eax /* zero extension */
14915 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
14916 movq %rcx,RIP-ARGOFFSET(%rsp)
14917@@ -320,12 +382,25 @@ ENTRY(ia32_cstar_target)
14918 /* no need to do an access_ok check here because r8 has been
14919 32bit zero extended */
14920 /* hardware stack frame is complete now */
14921+
14922+#ifdef CONFIG_PAX_MEMORY_UDEREF
14923+ ASM_PAX_OPEN_USERLAND
14924+ movq pax_user_shadow_base,%r8
14925+ addq RSP-ARGOFFSET(%rsp),%r8
14926+#endif
14927+
14928 ASM_STAC
14929 1: movl (%r8),%r9d
14930 _ASM_EXTABLE(1b,ia32_badarg)
14931 ASM_CLAC
14932- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14933- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14934+
14935+#ifdef CONFIG_PAX_MEMORY_UDEREF
14936+ ASM_PAX_CLOSE_USERLAND
14937+#endif
14938+
14939+ GET_THREAD_INFO(%r11)
14940+ orl $TS_COMPAT,TI_status(%r11)
14941+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14942 CFI_REMEMBER_STATE
14943 jnz cstar_tracesys
14944 cmpq $IA32_NR_syscalls-1,%rax
14945@@ -335,13 +410,16 @@ cstar_do_call:
14946 cstar_dispatch:
14947 call *ia32_sys_call_table(,%rax,8)
14948 movq %rax,RAX-ARGOFFSET(%rsp)
14949+ GET_THREAD_INFO(%r11)
14950 DISABLE_INTERRUPTS(CLBR_NONE)
14951 TRACE_IRQS_OFF
14952- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14953+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14954 jnz sysretl_audit
14955 sysretl_from_sys_call:
14956- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14957- RESTORE_ARGS 0,-ARG_SKIP,0,0,0
14958+ pax_exit_kernel_user
14959+ pax_erase_kstack
14960+ andl $~TS_COMPAT,TI_status(%r11)
14961+ RESTORE_ARGS 0,-ORIG_RAX,0,0,0
14962 movl RIP-ARGOFFSET(%rsp),%ecx
14963 CFI_REGISTER rip,rcx
14964 movl EFLAGS-ARGOFFSET(%rsp),%r11d
14965@@ -368,7 +446,7 @@ sysretl_audit:
14966
14967 cstar_tracesys:
14968 #ifdef CONFIG_AUDITSYSCALL
14969- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14970+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14971 jz cstar_auditsys
14972 #endif
14973 xchgl %r9d,%ebp
14974@@ -382,11 +460,19 @@ cstar_tracesys:
14975 xchgl %ebp,%r9d
14976 cmpq $(IA32_NR_syscalls-1),%rax
14977 ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
14978+
14979+ pax_erase_kstack
14980+
14981 jmp cstar_do_call
14982 END(ia32_cstar_target)
14983
14984 ia32_badarg:
14985 ASM_CLAC
14986+
14987+#ifdef CONFIG_PAX_MEMORY_UDEREF
14988+ ASM_PAX_CLOSE_USERLAND
14989+#endif
14990+
14991 movq $-EFAULT,%rax
14992 jmp ia32_sysret
14993 CFI_ENDPROC
14994@@ -423,19 +509,26 @@ ENTRY(ia32_syscall)
14995 CFI_REL_OFFSET rip,RIP-RIP
14996 PARAVIRT_ADJUST_EXCEPTION_FRAME
14997 SWAPGS
14998- /*
14999- * No need to follow this irqs on/off section: the syscall
15000- * disabled irqs and here we enable it straight after entry:
15001- */
15002- ENABLE_INTERRUPTS(CLBR_NONE)
15003 movl %eax,%eax
15004 pushq_cfi %rax
15005 cld
15006 /* note the registers are not zero extended to the sf.
15007 this could be a problem. */
15008 SAVE_ARGS 0,1,0
15009- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
15010- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
15011+ pax_enter_kernel_user
15012+
15013+#ifdef CONFIG_PAX_RANDKSTACK
15014+ pax_erase_kstack
15015+#endif
15016+
15017+ /*
15018+ * No need to follow this irqs on/off section: the syscall
15019+ * disabled irqs and here we enable it straight after entry:
15020+ */
15021+ ENABLE_INTERRUPTS(CLBR_NONE)
15022+ GET_THREAD_INFO(%r11)
15023+ orl $TS_COMPAT,TI_status(%r11)
15024+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
15025 jnz ia32_tracesys
15026 cmpq $(IA32_NR_syscalls-1),%rax
15027 ja ia32_badsys
15028@@ -458,6 +551,9 @@ ia32_tracesys:
15029 RESTORE_REST
15030 cmpq $(IA32_NR_syscalls-1),%rax
15031 ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
15032+
15033+ pax_erase_kstack
15034+
15035 jmp ia32_do_call
15036 END(ia32_syscall)
15037
15038diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
15039index 8e0ceec..af13504 100644
15040--- a/arch/x86/ia32/sys_ia32.c
15041+++ b/arch/x86/ia32/sys_ia32.c
15042@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
15043 */
15044 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
15045 {
15046- typeof(ubuf->st_uid) uid = 0;
15047- typeof(ubuf->st_gid) gid = 0;
15048+ typeof(((struct stat64 *)0)->st_uid) uid = 0;
15049+ typeof(((struct stat64 *)0)->st_gid) gid = 0;
15050 SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
15051 SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
15052 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
15053diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
15054index 372231c..51b537d 100644
15055--- a/arch/x86/include/asm/alternative-asm.h
15056+++ b/arch/x86/include/asm/alternative-asm.h
15057@@ -18,6 +18,45 @@
15058 .endm
15059 #endif
15060
15061+#ifdef KERNEXEC_PLUGIN
15062+ .macro pax_force_retaddr_bts rip=0
15063+ btsq $63,\rip(%rsp)
15064+ .endm
15065+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
15066+ .macro pax_force_retaddr rip=0, reload=0
15067+ btsq $63,\rip(%rsp)
15068+ .endm
15069+ .macro pax_force_fptr ptr
15070+ btsq $63,\ptr
15071+ .endm
15072+ .macro pax_set_fptr_mask
15073+ .endm
15074+#endif
15075+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
15076+ .macro pax_force_retaddr rip=0, reload=0
15077+ .if \reload
15078+ pax_set_fptr_mask
15079+ .endif
15080+ orq %r12,\rip(%rsp)
15081+ .endm
15082+ .macro pax_force_fptr ptr
15083+ orq %r12,\ptr
15084+ .endm
15085+ .macro pax_set_fptr_mask
15086+ movabs $0x8000000000000000,%r12
15087+ .endm
15088+#endif
15089+#else
15090+ .macro pax_force_retaddr rip=0, reload=0
15091+ .endm
15092+ .macro pax_force_fptr ptr
15093+ .endm
15094+ .macro pax_force_retaddr_bts rip=0
15095+ .endm
15096+ .macro pax_set_fptr_mask
15097+ .endm
15098+#endif
15099+
15100 .macro altinstruction_entry orig alt feature orig_len alt_len
15101 .long \orig - .
15102 .long \alt - .
15103diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
15104index 473bdbe..b1e3377 100644
15105--- a/arch/x86/include/asm/alternative.h
15106+++ b/arch/x86/include/asm/alternative.h
15107@@ -106,7 +106,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
15108 ".pushsection .discard,\"aw\",@progbits\n" \
15109 DISCARD_ENTRY(1) \
15110 ".popsection\n" \
15111- ".pushsection .altinstr_replacement, \"ax\"\n" \
15112+ ".pushsection .altinstr_replacement, \"a\"\n" \
15113 ALTINSTR_REPLACEMENT(newinstr, feature, 1) \
15114 ".popsection"
15115
15116@@ -120,7 +120,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
15117 DISCARD_ENTRY(1) \
15118 DISCARD_ENTRY(2) \
15119 ".popsection\n" \
15120- ".pushsection .altinstr_replacement, \"ax\"\n" \
15121+ ".pushsection .altinstr_replacement, \"a\"\n" \
15122 ALTINSTR_REPLACEMENT(newinstr1, feature1, 1) \
15123 ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \
15124 ".popsection"
15125diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
15126index efc3b22..85c4f3a 100644
15127--- a/arch/x86/include/asm/apic.h
15128+++ b/arch/x86/include/asm/apic.h
15129@@ -45,7 +45,7 @@ static inline void generic_apic_probe(void)
15130
15131 #ifdef CONFIG_X86_LOCAL_APIC
15132
15133-extern unsigned int apic_verbosity;
15134+extern int apic_verbosity;
15135 extern int local_apic_timer_c2_ok;
15136
15137 extern int disable_apic;
15138diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
15139index 20370c6..a2eb9b0 100644
15140--- a/arch/x86/include/asm/apm.h
15141+++ b/arch/x86/include/asm/apm.h
15142@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
15143 __asm__ __volatile__(APM_DO_ZERO_SEGS
15144 "pushl %%edi\n\t"
15145 "pushl %%ebp\n\t"
15146- "lcall *%%cs:apm_bios_entry\n\t"
15147+ "lcall *%%ss:apm_bios_entry\n\t"
15148 "setc %%al\n\t"
15149 "popl %%ebp\n\t"
15150 "popl %%edi\n\t"
15151@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
15152 __asm__ __volatile__(APM_DO_ZERO_SEGS
15153 "pushl %%edi\n\t"
15154 "pushl %%ebp\n\t"
15155- "lcall *%%cs:apm_bios_entry\n\t"
15156+ "lcall *%%ss:apm_bios_entry\n\t"
15157 "setc %%bl\n\t"
15158 "popl %%ebp\n\t"
15159 "popl %%edi\n\t"
15160diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
15161index 5e5cd12..51cdc93 100644
15162--- a/arch/x86/include/asm/atomic.h
15163+++ b/arch/x86/include/asm/atomic.h
15164@@ -28,6 +28,17 @@ static inline int atomic_read(const atomic_t *v)
15165 }
15166
15167 /**
15168+ * atomic_read_unchecked - read atomic variable
15169+ * @v: pointer of type atomic_unchecked_t
15170+ *
15171+ * Atomically reads the value of @v.
15172+ */
15173+static inline int __intentional_overflow(-1) atomic_read_unchecked(const atomic_unchecked_t *v)
15174+{
15175+ return ACCESS_ONCE((v)->counter);
15176+}
15177+
15178+/**
15179 * atomic_set - set atomic variable
15180 * @v: pointer of type atomic_t
15181 * @i: required value
15182@@ -40,6 +51,18 @@ static inline void atomic_set(atomic_t *v, int i)
15183 }
15184
15185 /**
15186+ * atomic_set_unchecked - set atomic variable
15187+ * @v: pointer of type atomic_unchecked_t
15188+ * @i: required value
15189+ *
15190+ * Atomically sets the value of @v to @i.
15191+ */
15192+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
15193+{
15194+ v->counter = i;
15195+}
15196+
15197+/**
15198 * atomic_add - add integer to atomic variable
15199 * @i: integer value to add
15200 * @v: pointer of type atomic_t
15201@@ -48,7 +71,29 @@ static inline void atomic_set(atomic_t *v, int i)
15202 */
15203 static inline void atomic_add(int i, atomic_t *v)
15204 {
15205- asm volatile(LOCK_PREFIX "addl %1,%0"
15206+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
15207+
15208+#ifdef CONFIG_PAX_REFCOUNT
15209+ "jno 0f\n"
15210+ LOCK_PREFIX "subl %1,%0\n"
15211+ "int $4\n0:\n"
15212+ _ASM_EXTABLE(0b, 0b)
15213+#endif
15214+
15215+ : "+m" (v->counter)
15216+ : "ir" (i));
15217+}
15218+
15219+/**
15220+ * atomic_add_unchecked - add integer to atomic variable
15221+ * @i: integer value to add
15222+ * @v: pointer of type atomic_unchecked_t
15223+ *
15224+ * Atomically adds @i to @v.
15225+ */
15226+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
15227+{
15228+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
15229 : "+m" (v->counter)
15230 : "ir" (i));
15231 }
15232@@ -62,7 +107,29 @@ static inline void atomic_add(int i, atomic_t *v)
15233 */
15234 static inline void atomic_sub(int i, atomic_t *v)
15235 {
15236- asm volatile(LOCK_PREFIX "subl %1,%0"
15237+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
15238+
15239+#ifdef CONFIG_PAX_REFCOUNT
15240+ "jno 0f\n"
15241+ LOCK_PREFIX "addl %1,%0\n"
15242+ "int $4\n0:\n"
15243+ _ASM_EXTABLE(0b, 0b)
15244+#endif
15245+
15246+ : "+m" (v->counter)
15247+ : "ir" (i));
15248+}
15249+
15250+/**
15251+ * atomic_sub_unchecked - subtract integer from atomic variable
15252+ * @i: integer value to subtract
15253+ * @v: pointer of type atomic_unchecked_t
15254+ *
15255+ * Atomically subtracts @i from @v.
15256+ */
15257+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
15258+{
15259+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
15260 : "+m" (v->counter)
15261 : "ir" (i));
15262 }
15263@@ -78,7 +145,7 @@ static inline void atomic_sub(int i, atomic_t *v)
15264 */
15265 static inline int atomic_sub_and_test(int i, atomic_t *v)
15266 {
15267- GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
15268+ GEN_BINARY_RMWcc(LOCK_PREFIX "subl", LOCK_PREFIX "addl", v->counter, "er", i, "%0", "e");
15269 }
15270
15271 /**
15272@@ -89,7 +156,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
15273 */
15274 static inline void atomic_inc(atomic_t *v)
15275 {
15276- asm volatile(LOCK_PREFIX "incl %0"
15277+ asm volatile(LOCK_PREFIX "incl %0\n"
15278+
15279+#ifdef CONFIG_PAX_REFCOUNT
15280+ "jno 0f\n"
15281+ LOCK_PREFIX "decl %0\n"
15282+ "int $4\n0:\n"
15283+ _ASM_EXTABLE(0b, 0b)
15284+#endif
15285+
15286+ : "+m" (v->counter));
15287+}
15288+
15289+/**
15290+ * atomic_inc_unchecked - increment atomic variable
15291+ * @v: pointer of type atomic_unchecked_t
15292+ *
15293+ * Atomically increments @v by 1.
15294+ */
15295+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
15296+{
15297+ asm volatile(LOCK_PREFIX "incl %0\n"
15298 : "+m" (v->counter));
15299 }
15300
15301@@ -101,7 +188,27 @@ static inline void atomic_inc(atomic_t *v)
15302 */
15303 static inline void atomic_dec(atomic_t *v)
15304 {
15305- asm volatile(LOCK_PREFIX "decl %0"
15306+ asm volatile(LOCK_PREFIX "decl %0\n"
15307+
15308+#ifdef CONFIG_PAX_REFCOUNT
15309+ "jno 0f\n"
15310+ LOCK_PREFIX "incl %0\n"
15311+ "int $4\n0:\n"
15312+ _ASM_EXTABLE(0b, 0b)
15313+#endif
15314+
15315+ : "+m" (v->counter));
15316+}
15317+
15318+/**
15319+ * atomic_dec_unchecked - decrement atomic variable
15320+ * @v: pointer of type atomic_unchecked_t
15321+ *
15322+ * Atomically decrements @v by 1.
15323+ */
15324+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
15325+{
15326+ asm volatile(LOCK_PREFIX "decl %0\n"
15327 : "+m" (v->counter));
15328 }
15329
15330@@ -115,7 +222,7 @@ static inline void atomic_dec(atomic_t *v)
15331 */
15332 static inline int atomic_dec_and_test(atomic_t *v)
15333 {
15334- GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
15335+ GEN_UNARY_RMWcc(LOCK_PREFIX "decl", LOCK_PREFIX "incl", v->counter, "%0", "e");
15336 }
15337
15338 /**
15339@@ -128,7 +235,20 @@ static inline int atomic_dec_and_test(atomic_t *v)
15340 */
15341 static inline int atomic_inc_and_test(atomic_t *v)
15342 {
15343- GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
15344+ GEN_UNARY_RMWcc(LOCK_PREFIX "incl", LOCK_PREFIX "decl", v->counter, "%0", "e");
15345+}
15346+
15347+/**
15348+ * atomic_inc_and_test_unchecked - increment and test
15349+ * @v: pointer of type atomic_unchecked_t
15350+ *
15351+ * Atomically increments @v by 1
15352+ * and returns true if the result is zero, or false for all
15353+ * other cases.
15354+ */
15355+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
15356+{
15357+ GEN_UNARY_RMWcc_unchecked(LOCK_PREFIX "incl", v->counter, "%0", "e");
15358 }
15359
15360 /**
15361@@ -142,7 +262,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
15362 */
15363 static inline int atomic_add_negative(int i, atomic_t *v)
15364 {
15365- GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
15366+ GEN_BINARY_RMWcc(LOCK_PREFIX "addl", LOCK_PREFIX "subl", v->counter, "er", i, "%0", "s");
15367 }
15368
15369 /**
15370@@ -152,7 +272,19 @@ static inline int atomic_add_negative(int i, atomic_t *v)
15371 *
15372 * Atomically adds @i to @v and returns @i + @v
15373 */
15374-static inline int atomic_add_return(int i, atomic_t *v)
15375+static inline int __intentional_overflow(-1) atomic_add_return(int i, atomic_t *v)
15376+{
15377+ return i + xadd_check_overflow(&v->counter, i);
15378+}
15379+
15380+/**
15381+ * atomic_add_return_unchecked - add integer and return
15382+ * @i: integer value to add
15383+ * @v: pointer of type atomic_unchecked_t
15384+ *
15385+ * Atomically adds @i to @v and returns @i + @v
15386+ */
15387+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
15388 {
15389 return i + xadd(&v->counter, i);
15390 }
15391@@ -164,15 +296,24 @@ static inline int atomic_add_return(int i, atomic_t *v)
15392 *
15393 * Atomically subtracts @i from @v and returns @v - @i
15394 */
15395-static inline int atomic_sub_return(int i, atomic_t *v)
15396+static inline int __intentional_overflow(-1) atomic_sub_return(int i, atomic_t *v)
15397 {
15398 return atomic_add_return(-i, v);
15399 }
15400
15401 #define atomic_inc_return(v) (atomic_add_return(1, v))
15402+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
15403+{
15404+ return atomic_add_return_unchecked(1, v);
15405+}
15406 #define atomic_dec_return(v) (atomic_sub_return(1, v))
15407
15408-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
15409+static inline int __intentional_overflow(-1) atomic_cmpxchg(atomic_t *v, int old, int new)
15410+{
15411+ return cmpxchg(&v->counter, old, new);
15412+}
15413+
15414+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
15415 {
15416 return cmpxchg(&v->counter, old, new);
15417 }
15418@@ -182,6 +323,11 @@ static inline int atomic_xchg(atomic_t *v, int new)
15419 return xchg(&v->counter, new);
15420 }
15421
15422+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
15423+{
15424+ return xchg(&v->counter, new);
15425+}
15426+
15427 /**
15428 * __atomic_add_unless - add unless the number is already a given value
15429 * @v: pointer of type atomic_t
15430@@ -193,12 +339,25 @@ static inline int atomic_xchg(atomic_t *v, int new)
15431 */
15432 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15433 {
15434- int c, old;
15435+ int c, old, new;
15436 c = atomic_read(v);
15437 for (;;) {
15438- if (unlikely(c == (u)))
15439+ if (unlikely(c == u))
15440 break;
15441- old = atomic_cmpxchg((v), c, c + (a));
15442+
15443+ asm volatile("addl %2,%0\n"
15444+
15445+#ifdef CONFIG_PAX_REFCOUNT
15446+ "jno 0f\n"
15447+ "subl %2,%0\n"
15448+ "int $4\n0:\n"
15449+ _ASM_EXTABLE(0b, 0b)
15450+#endif
15451+
15452+ : "=r" (new)
15453+ : "0" (c), "ir" (a));
15454+
15455+ old = atomic_cmpxchg(v, c, new);
15456 if (likely(old == c))
15457 break;
15458 c = old;
15459@@ -207,6 +366,49 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15460 }
15461
15462 /**
15463+ * atomic_inc_not_zero_hint - increment if not null
15464+ * @v: pointer of type atomic_t
15465+ * @hint: probable value of the atomic before the increment
15466+ *
15467+ * This version of atomic_inc_not_zero() gives a hint of probable
15468+ * value of the atomic. This helps processor to not read the memory
15469+ * before doing the atomic read/modify/write cycle, lowering
15470+ * number of bus transactions on some arches.
15471+ *
15472+ * Returns: 0 if increment was not done, 1 otherwise.
15473+ */
15474+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
15475+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
15476+{
15477+ int val, c = hint, new;
15478+
15479+ /* sanity test, should be removed by compiler if hint is a constant */
15480+ if (!hint)
15481+ return __atomic_add_unless(v, 1, 0);
15482+
15483+ do {
15484+ asm volatile("incl %0\n"
15485+
15486+#ifdef CONFIG_PAX_REFCOUNT
15487+ "jno 0f\n"
15488+ "decl %0\n"
15489+ "int $4\n0:\n"
15490+ _ASM_EXTABLE(0b, 0b)
15491+#endif
15492+
15493+ : "=r" (new)
15494+ : "0" (c));
15495+
15496+ val = atomic_cmpxchg(v, c, new);
15497+ if (val == c)
15498+ return 1;
15499+ c = val;
15500+ } while (c);
15501+
15502+ return 0;
15503+}
15504+
15505+/**
15506 * atomic_inc_short - increment of a short integer
15507 * @v: pointer to type int
15508 *
15509@@ -220,14 +422,37 @@ static inline short int atomic_inc_short(short int *v)
15510 }
15511
15512 /* These are x86-specific, used by some header files */
15513-#define atomic_clear_mask(mask, addr) \
15514- asm volatile(LOCK_PREFIX "andl %0,%1" \
15515- : : "r" (~(mask)), "m" (*(addr)) : "memory")
15516+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
15517+{
15518+ asm volatile(LOCK_PREFIX "andl %1,%0"
15519+ : "+m" (v->counter)
15520+ : "r" (~(mask))
15521+ : "memory");
15522+}
15523
15524-#define atomic_set_mask(mask, addr) \
15525- asm volatile(LOCK_PREFIX "orl %0,%1" \
15526- : : "r" ((unsigned)(mask)), "m" (*(addr)) \
15527- : "memory")
15528+static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15529+{
15530+ asm volatile(LOCK_PREFIX "andl %1,%0"
15531+ : "+m" (v->counter)
15532+ : "r" (~(mask))
15533+ : "memory");
15534+}
15535+
15536+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
15537+{
15538+ asm volatile(LOCK_PREFIX "orl %1,%0"
15539+ : "+m" (v->counter)
15540+ : "r" (mask)
15541+ : "memory");
15542+}
15543+
15544+static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15545+{
15546+ asm volatile(LOCK_PREFIX "orl %1,%0"
15547+ : "+m" (v->counter)
15548+ : "r" (mask)
15549+ : "memory");
15550+}
15551
15552 #ifdef CONFIG_X86_32
15553 # include <asm/atomic64_32.h>
15554diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
15555index b154de7..bf18a5a 100644
15556--- a/arch/x86/include/asm/atomic64_32.h
15557+++ b/arch/x86/include/asm/atomic64_32.h
15558@@ -12,6 +12,14 @@ typedef struct {
15559 u64 __aligned(8) counter;
15560 } atomic64_t;
15561
15562+#ifdef CONFIG_PAX_REFCOUNT
15563+typedef struct {
15564+ u64 __aligned(8) counter;
15565+} atomic64_unchecked_t;
15566+#else
15567+typedef atomic64_t atomic64_unchecked_t;
15568+#endif
15569+
15570 #define ATOMIC64_INIT(val) { (val) }
15571
15572 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
15573@@ -37,21 +45,31 @@ typedef struct {
15574 ATOMIC64_DECL_ONE(sym##_386)
15575
15576 ATOMIC64_DECL_ONE(add_386);
15577+ATOMIC64_DECL_ONE(add_unchecked_386);
15578 ATOMIC64_DECL_ONE(sub_386);
15579+ATOMIC64_DECL_ONE(sub_unchecked_386);
15580 ATOMIC64_DECL_ONE(inc_386);
15581+ATOMIC64_DECL_ONE(inc_unchecked_386);
15582 ATOMIC64_DECL_ONE(dec_386);
15583+ATOMIC64_DECL_ONE(dec_unchecked_386);
15584 #endif
15585
15586 #define alternative_atomic64(f, out, in...) \
15587 __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
15588
15589 ATOMIC64_DECL(read);
15590+ATOMIC64_DECL(read_unchecked);
15591 ATOMIC64_DECL(set);
15592+ATOMIC64_DECL(set_unchecked);
15593 ATOMIC64_DECL(xchg);
15594 ATOMIC64_DECL(add_return);
15595+ATOMIC64_DECL(add_return_unchecked);
15596 ATOMIC64_DECL(sub_return);
15597+ATOMIC64_DECL(sub_return_unchecked);
15598 ATOMIC64_DECL(inc_return);
15599+ATOMIC64_DECL(inc_return_unchecked);
15600 ATOMIC64_DECL(dec_return);
15601+ATOMIC64_DECL(dec_return_unchecked);
15602 ATOMIC64_DECL(dec_if_positive);
15603 ATOMIC64_DECL(inc_not_zero);
15604 ATOMIC64_DECL(add_unless);
15605@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
15606 }
15607
15608 /**
15609+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
15610+ * @p: pointer to type atomic64_unchecked_t
15611+ * @o: expected value
15612+ * @n: new value
15613+ *
15614+ * Atomically sets @v to @n if it was equal to @o and returns
15615+ * the old value.
15616+ */
15617+
15618+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
15619+{
15620+ return cmpxchg64(&v->counter, o, n);
15621+}
15622+
15623+/**
15624 * atomic64_xchg - xchg atomic64 variable
15625 * @v: pointer to type atomic64_t
15626 * @n: value to assign
15627@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
15628 }
15629
15630 /**
15631+ * atomic64_set_unchecked - set atomic64 variable
15632+ * @v: pointer to type atomic64_unchecked_t
15633+ * @n: value to assign
15634+ *
15635+ * Atomically sets the value of @v to @n.
15636+ */
15637+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
15638+{
15639+ unsigned high = (unsigned)(i >> 32);
15640+ unsigned low = (unsigned)i;
15641+ alternative_atomic64(set, /* no output */,
15642+ "S" (v), "b" (low), "c" (high)
15643+ : "eax", "edx", "memory");
15644+}
15645+
15646+/**
15647 * atomic64_read - read atomic64 variable
15648 * @v: pointer to type atomic64_t
15649 *
15650@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
15651 }
15652
15653 /**
15654+ * atomic64_read_unchecked - read atomic64 variable
15655+ * @v: pointer to type atomic64_unchecked_t
15656+ *
15657+ * Atomically reads the value of @v and returns it.
15658+ */
15659+static inline long long __intentional_overflow(-1) atomic64_read_unchecked(atomic64_unchecked_t *v)
15660+{
15661+ long long r;
15662+ alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
15663+ return r;
15664+ }
15665+
15666+/**
15667 * atomic64_add_return - add and return
15668 * @i: integer value to add
15669 * @v: pointer to type atomic64_t
15670@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
15671 return i;
15672 }
15673
15674+/**
15675+ * atomic64_add_return_unchecked - add and return
15676+ * @i: integer value to add
15677+ * @v: pointer to type atomic64_unchecked_t
15678+ *
15679+ * Atomically adds @i to @v and returns @i + *@v
15680+ */
15681+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
15682+{
15683+ alternative_atomic64(add_return_unchecked,
15684+ ASM_OUTPUT2("+A" (i), "+c" (v)),
15685+ ASM_NO_INPUT_CLOBBER("memory"));
15686+ return i;
15687+}
15688+
15689 /*
15690 * Other variants with different arithmetic operators:
15691 */
15692@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
15693 return a;
15694 }
15695
15696+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15697+{
15698+ long long a;
15699+ alternative_atomic64(inc_return_unchecked, "=&A" (a),
15700+ "S" (v) : "memory", "ecx");
15701+ return a;
15702+}
15703+
15704 static inline long long atomic64_dec_return(atomic64_t *v)
15705 {
15706 long long a;
15707@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
15708 }
15709
15710 /**
15711+ * atomic64_add_unchecked - add integer to atomic64 variable
15712+ * @i: integer value to add
15713+ * @v: pointer to type atomic64_unchecked_t
15714+ *
15715+ * Atomically adds @i to @v.
15716+ */
15717+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
15718+{
15719+ __alternative_atomic64(add_unchecked, add_return_unchecked,
15720+ ASM_OUTPUT2("+A" (i), "+c" (v)),
15721+ ASM_NO_INPUT_CLOBBER("memory"));
15722+ return i;
15723+}
15724+
15725+/**
15726 * atomic64_sub - subtract the atomic64 variable
15727 * @i: integer value to subtract
15728 * @v: pointer to type atomic64_t
15729diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
15730index f8d273e..02f39f3 100644
15731--- a/arch/x86/include/asm/atomic64_64.h
15732+++ b/arch/x86/include/asm/atomic64_64.h
15733@@ -22,6 +22,18 @@ static inline long atomic64_read(const atomic64_t *v)
15734 }
15735
15736 /**
15737+ * atomic64_read_unchecked - read atomic64 variable
15738+ * @v: pointer of type atomic64_unchecked_t
15739+ *
15740+ * Atomically reads the value of @v.
15741+ * Doesn't imply a read memory barrier.
15742+ */
15743+static inline long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
15744+{
15745+ return ACCESS_ONCE((v)->counter);
15746+}
15747+
15748+/**
15749 * atomic64_set - set atomic64 variable
15750 * @v: pointer to type atomic64_t
15751 * @i: required value
15752@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
15753 }
15754
15755 /**
15756+ * atomic64_set_unchecked - set atomic64 variable
15757+ * @v: pointer to type atomic64_unchecked_t
15758+ * @i: required value
15759+ *
15760+ * Atomically sets the value of @v to @i.
15761+ */
15762+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
15763+{
15764+ v->counter = i;
15765+}
15766+
15767+/**
15768 * atomic64_add - add integer to atomic64 variable
15769 * @i: integer value to add
15770 * @v: pointer to type atomic64_t
15771@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
15772 */
15773 static inline void atomic64_add(long i, atomic64_t *v)
15774 {
15775+ asm volatile(LOCK_PREFIX "addq %1,%0\n"
15776+
15777+#ifdef CONFIG_PAX_REFCOUNT
15778+ "jno 0f\n"
15779+ LOCK_PREFIX "subq %1,%0\n"
15780+ "int $4\n0:\n"
15781+ _ASM_EXTABLE(0b, 0b)
15782+#endif
15783+
15784+ : "=m" (v->counter)
15785+ : "er" (i), "m" (v->counter));
15786+}
15787+
15788+/**
15789+ * atomic64_add_unchecked - add integer to atomic64 variable
15790+ * @i: integer value to add
15791+ * @v: pointer to type atomic64_unchecked_t
15792+ *
15793+ * Atomically adds @i to @v.
15794+ */
15795+static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
15796+{
15797 asm volatile(LOCK_PREFIX "addq %1,%0"
15798 : "=m" (v->counter)
15799 : "er" (i), "m" (v->counter));
15800@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
15801 */
15802 static inline void atomic64_sub(long i, atomic64_t *v)
15803 {
15804- asm volatile(LOCK_PREFIX "subq %1,%0"
15805+ asm volatile(LOCK_PREFIX "subq %1,%0\n"
15806+
15807+#ifdef CONFIG_PAX_REFCOUNT
15808+ "jno 0f\n"
15809+ LOCK_PREFIX "addq %1,%0\n"
15810+ "int $4\n0:\n"
15811+ _ASM_EXTABLE(0b, 0b)
15812+#endif
15813+
15814+ : "=m" (v->counter)
15815+ : "er" (i), "m" (v->counter));
15816+}
15817+
15818+/**
15819+ * atomic64_sub_unchecked - subtract the atomic64 variable
15820+ * @i: integer value to subtract
15821+ * @v: pointer to type atomic64_unchecked_t
15822+ *
15823+ * Atomically subtracts @i from @v.
15824+ */
15825+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
15826+{
15827+ asm volatile(LOCK_PREFIX "subq %1,%0\n"
15828 : "=m" (v->counter)
15829 : "er" (i), "m" (v->counter));
15830 }
15831@@ -72,7 +140,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
15832 */
15833 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15834 {
15835- GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
15836+ GEN_BINARY_RMWcc(LOCK_PREFIX "subq", LOCK_PREFIX "addq", v->counter, "er", i, "%0", "e");
15837 }
15838
15839 /**
15840@@ -83,6 +151,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15841 */
15842 static inline void atomic64_inc(atomic64_t *v)
15843 {
15844+ asm volatile(LOCK_PREFIX "incq %0\n"
15845+
15846+#ifdef CONFIG_PAX_REFCOUNT
15847+ "jno 0f\n"
15848+ LOCK_PREFIX "decq %0\n"
15849+ "int $4\n0:\n"
15850+ _ASM_EXTABLE(0b, 0b)
15851+#endif
15852+
15853+ : "=m" (v->counter)
15854+ : "m" (v->counter));
15855+}
15856+
15857+/**
15858+ * atomic64_inc_unchecked - increment atomic64 variable
15859+ * @v: pointer to type atomic64_unchecked_t
15860+ *
15861+ * Atomically increments @v by 1.
15862+ */
15863+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
15864+{
15865 asm volatile(LOCK_PREFIX "incq %0"
15866 : "=m" (v->counter)
15867 : "m" (v->counter));
15868@@ -96,7 +185,28 @@ static inline void atomic64_inc(atomic64_t *v)
15869 */
15870 static inline void atomic64_dec(atomic64_t *v)
15871 {
15872- asm volatile(LOCK_PREFIX "decq %0"
15873+ asm volatile(LOCK_PREFIX "decq %0\n"
15874+
15875+#ifdef CONFIG_PAX_REFCOUNT
15876+ "jno 0f\n"
15877+ LOCK_PREFIX "incq %0\n"
15878+ "int $4\n0:\n"
15879+ _ASM_EXTABLE(0b, 0b)
15880+#endif
15881+
15882+ : "=m" (v->counter)
15883+ : "m" (v->counter));
15884+}
15885+
15886+/**
15887+ * atomic64_dec_unchecked - decrement atomic64 variable
15888+ * @v: pointer to type atomic64_t
15889+ *
15890+ * Atomically decrements @v by 1.
15891+ */
15892+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
15893+{
15894+ asm volatile(LOCK_PREFIX "decq %0\n"
15895 : "=m" (v->counter)
15896 : "m" (v->counter));
15897 }
15898@@ -111,7 +221,7 @@ static inline void atomic64_dec(atomic64_t *v)
15899 */
15900 static inline int atomic64_dec_and_test(atomic64_t *v)
15901 {
15902- GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
15903+ GEN_UNARY_RMWcc(LOCK_PREFIX "decq", LOCK_PREFIX "incq", v->counter, "%0", "e");
15904 }
15905
15906 /**
15907@@ -124,7 +234,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
15908 */
15909 static inline int atomic64_inc_and_test(atomic64_t *v)
15910 {
15911- GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
15912+ GEN_UNARY_RMWcc(LOCK_PREFIX "incq", LOCK_PREFIX "decq", v->counter, "%0", "e");
15913 }
15914
15915 /**
15916@@ -138,7 +248,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
15917 */
15918 static inline int atomic64_add_negative(long i, atomic64_t *v)
15919 {
15920- GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
15921+ GEN_BINARY_RMWcc(LOCK_PREFIX "addq", LOCK_PREFIX "subq", v->counter, "er", i, "%0", "s");
15922 }
15923
15924 /**
15925@@ -150,6 +260,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
15926 */
15927 static inline long atomic64_add_return(long i, atomic64_t *v)
15928 {
15929+ return i + xadd_check_overflow(&v->counter, i);
15930+}
15931+
15932+/**
15933+ * atomic64_add_return_unchecked - add and return
15934+ * @i: integer value to add
15935+ * @v: pointer to type atomic64_unchecked_t
15936+ *
15937+ * Atomically adds @i to @v and returns @i + @v
15938+ */
15939+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
15940+{
15941 return i + xadd(&v->counter, i);
15942 }
15943
15944@@ -159,6 +281,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
15945 }
15946
15947 #define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
15948+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15949+{
15950+ return atomic64_add_return_unchecked(1, v);
15951+}
15952 #define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
15953
15954 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15955@@ -166,6 +292,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15956 return cmpxchg(&v->counter, old, new);
15957 }
15958
15959+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
15960+{
15961+ return cmpxchg(&v->counter, old, new);
15962+}
15963+
15964 static inline long atomic64_xchg(atomic64_t *v, long new)
15965 {
15966 return xchg(&v->counter, new);
15967@@ -182,17 +313,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
15968 */
15969 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
15970 {
15971- long c, old;
15972+ long c, old, new;
15973 c = atomic64_read(v);
15974 for (;;) {
15975- if (unlikely(c == (u)))
15976+ if (unlikely(c == u))
15977 break;
15978- old = atomic64_cmpxchg((v), c, c + (a));
15979+
15980+ asm volatile("add %2,%0\n"
15981+
15982+#ifdef CONFIG_PAX_REFCOUNT
15983+ "jno 0f\n"
15984+ "sub %2,%0\n"
15985+ "int $4\n0:\n"
15986+ _ASM_EXTABLE(0b, 0b)
15987+#endif
15988+
15989+ : "=r" (new)
15990+ : "0" (c), "ir" (a));
15991+
15992+ old = atomic64_cmpxchg(v, c, new);
15993 if (likely(old == c))
15994 break;
15995 c = old;
15996 }
15997- return c != (u);
15998+ return c != u;
15999 }
16000
16001 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
16002diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
16003index 2ab1eb3..1e8cc5d 100644
16004--- a/arch/x86/include/asm/barrier.h
16005+++ b/arch/x86/include/asm/barrier.h
16006@@ -57,7 +57,7 @@
16007 do { \
16008 compiletime_assert_atomic_type(*p); \
16009 smp_mb(); \
16010- ACCESS_ONCE(*p) = (v); \
16011+ ACCESS_ONCE_RW(*p) = (v); \
16012 } while (0)
16013
16014 #define smp_load_acquire(p) \
16015@@ -74,7 +74,7 @@ do { \
16016 do { \
16017 compiletime_assert_atomic_type(*p); \
16018 barrier(); \
16019- ACCESS_ONCE(*p) = (v); \
16020+ ACCESS_ONCE_RW(*p) = (v); \
16021 } while (0)
16022
16023 #define smp_load_acquire(p) \
16024diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
16025index cfe3b95..d01b118 100644
16026--- a/arch/x86/include/asm/bitops.h
16027+++ b/arch/x86/include/asm/bitops.h
16028@@ -50,7 +50,7 @@
16029 * a mask operation on a byte.
16030 */
16031 #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr))
16032-#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3))
16033+#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
16034 #define CONST_MASK(nr) (1 << ((nr) & 7))
16035
16036 /**
16037@@ -203,7 +203,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
16038 */
16039 static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
16040 {
16041- GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
16042+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
16043 }
16044
16045 /**
16046@@ -249,7 +249,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
16047 */
16048 static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
16049 {
16050- GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
16051+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
16052 }
16053
16054 /**
16055@@ -302,7 +302,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
16056 */
16057 static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
16058 {
16059- GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
16060+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
16061 }
16062
16063 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
16064@@ -343,7 +343,7 @@ static int test_bit(int nr, const volatile unsigned long *addr);
16065 *
16066 * Undefined if no bit exists, so code should check against 0 first.
16067 */
16068-static inline unsigned long __ffs(unsigned long word)
16069+static inline unsigned long __intentional_overflow(-1) __ffs(unsigned long word)
16070 {
16071 asm("rep; bsf %1,%0"
16072 : "=r" (word)
16073@@ -357,7 +357,7 @@ static inline unsigned long __ffs(unsigned long word)
16074 *
16075 * Undefined if no zero exists, so code should check against ~0UL first.
16076 */
16077-static inline unsigned long ffz(unsigned long word)
16078+static inline unsigned long __intentional_overflow(-1) ffz(unsigned long word)
16079 {
16080 asm("rep; bsf %1,%0"
16081 : "=r" (word)
16082@@ -371,7 +371,7 @@ static inline unsigned long ffz(unsigned long word)
16083 *
16084 * Undefined if no set bit exists, so code should check against 0 first.
16085 */
16086-static inline unsigned long __fls(unsigned long word)
16087+static inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
16088 {
16089 asm("bsr %1,%0"
16090 : "=r" (word)
16091@@ -434,7 +434,7 @@ static inline int ffs(int x)
16092 * set bit if value is nonzero. The last (most significant) bit is
16093 * at position 32.
16094 */
16095-static inline int fls(int x)
16096+static inline int __intentional_overflow(-1) fls(int x)
16097 {
16098 int r;
16099
16100@@ -476,7 +476,7 @@ static inline int fls(int x)
16101 * at position 64.
16102 */
16103 #ifdef CONFIG_X86_64
16104-static __always_inline int fls64(__u64 x)
16105+static __always_inline __intentional_overflow(-1) int fls64(__u64 x)
16106 {
16107 int bitpos = -1;
16108 /*
16109diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
16110index 4fa687a..60f2d39 100644
16111--- a/arch/x86/include/asm/boot.h
16112+++ b/arch/x86/include/asm/boot.h
16113@@ -6,10 +6,15 @@
16114 #include <uapi/asm/boot.h>
16115
16116 /* Physical address where kernel should be loaded. */
16117-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
16118+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
16119 + (CONFIG_PHYSICAL_ALIGN - 1)) \
16120 & ~(CONFIG_PHYSICAL_ALIGN - 1))
16121
16122+#ifndef __ASSEMBLY__
16123+extern unsigned char __LOAD_PHYSICAL_ADDR[];
16124+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
16125+#endif
16126+
16127 /* Minimum kernel alignment, as a power of two */
16128 #ifdef CONFIG_X86_64
16129 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
16130diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
16131index 48f99f1..d78ebf9 100644
16132--- a/arch/x86/include/asm/cache.h
16133+++ b/arch/x86/include/asm/cache.h
16134@@ -5,12 +5,13 @@
16135
16136 /* L1 cache line size */
16137 #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
16138-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
16139+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
16140
16141 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
16142+#define __read_only __attribute__((__section__(".data..read_only")))
16143
16144 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
16145-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
16146+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
16147
16148 #ifdef CONFIG_X86_VSMP
16149 #ifdef CONFIG_SMP
16150diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
16151index 1f1297b..72b8439 100644
16152--- a/arch/x86/include/asm/calling.h
16153+++ b/arch/x86/include/asm/calling.h
16154@@ -82,106 +82,117 @@ For 32-bit we have the following conventions - kernel is built with
16155 #define RSP 152
16156 #define SS 160
16157
16158-#define ARGOFFSET R11
16159+#define ARGOFFSET R15
16160
16161 .macro SAVE_ARGS addskip=0, save_rcx=1, save_r891011=1, rax_enosys=0
16162- subq $9*8+\addskip, %rsp
16163- CFI_ADJUST_CFA_OFFSET 9*8+\addskip
16164- movq_cfi rdi, 8*8
16165- movq_cfi rsi, 7*8
16166- movq_cfi rdx, 6*8
16167+ subq $ORIG_RAX-ARGOFFSET+\addskip, %rsp
16168+ CFI_ADJUST_CFA_OFFSET ORIG_RAX-ARGOFFSET+\addskip
16169+ movq_cfi rdi, RDI
16170+ movq_cfi rsi, RSI
16171+ movq_cfi rdx, RDX
16172
16173 .if \save_rcx
16174- movq_cfi rcx, 5*8
16175+ movq_cfi rcx, RCX
16176 .endif
16177
16178 .if \rax_enosys
16179- movq $-ENOSYS, 4*8(%rsp)
16180+ movq $-ENOSYS, RAX(%rsp)
16181 .else
16182- movq_cfi rax, 4*8
16183+ movq_cfi rax, RAX
16184 .endif
16185
16186 .if \save_r891011
16187- movq_cfi r8, 3*8
16188- movq_cfi r9, 2*8
16189- movq_cfi r10, 1*8
16190- movq_cfi r11, 0*8
16191+ movq_cfi r8, R8
16192+ movq_cfi r9, R9
16193+ movq_cfi r10, R10
16194+ movq_cfi r11, R11
16195 .endif
16196
16197+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16198+ movq_cfi r12, R12
16199+#endif
16200+
16201 .endm
16202
16203-#define ARG_SKIP (9*8)
16204+#define ARG_SKIP ORIG_RAX
16205
16206 .macro RESTORE_ARGS rstor_rax=1, addskip=0, rstor_rcx=1, rstor_r11=1, \
16207 rstor_r8910=1, rstor_rdx=1
16208+
16209+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16210+ movq_cfi_restore R12, r12
16211+#endif
16212+
16213 .if \rstor_r11
16214- movq_cfi_restore 0*8, r11
16215+ movq_cfi_restore R11, r11
16216 .endif
16217
16218 .if \rstor_r8910
16219- movq_cfi_restore 1*8, r10
16220- movq_cfi_restore 2*8, r9
16221- movq_cfi_restore 3*8, r8
16222+ movq_cfi_restore R10, r10
16223+ movq_cfi_restore R9, r9
16224+ movq_cfi_restore R8, r8
16225 .endif
16226
16227 .if \rstor_rax
16228- movq_cfi_restore 4*8, rax
16229+ movq_cfi_restore RAX, rax
16230 .endif
16231
16232 .if \rstor_rcx
16233- movq_cfi_restore 5*8, rcx
16234+ movq_cfi_restore RCX, rcx
16235 .endif
16236
16237 .if \rstor_rdx
16238- movq_cfi_restore 6*8, rdx
16239+ movq_cfi_restore RDX, rdx
16240 .endif
16241
16242- movq_cfi_restore 7*8, rsi
16243- movq_cfi_restore 8*8, rdi
16244+ movq_cfi_restore RSI, rsi
16245+ movq_cfi_restore RDI, rdi
16246
16247- .if ARG_SKIP+\addskip > 0
16248- addq $ARG_SKIP+\addskip, %rsp
16249- CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip)
16250+ .if ORIG_RAX+\addskip > 0
16251+ addq $ORIG_RAX+\addskip, %rsp
16252+ CFI_ADJUST_CFA_OFFSET -(ORIG_RAX+\addskip)
16253 .endif
16254 .endm
16255
16256- .macro LOAD_ARGS offset, skiprax=0
16257- movq \offset(%rsp), %r11
16258- movq \offset+8(%rsp), %r10
16259- movq \offset+16(%rsp), %r9
16260- movq \offset+24(%rsp), %r8
16261- movq \offset+40(%rsp), %rcx
16262- movq \offset+48(%rsp), %rdx
16263- movq \offset+56(%rsp), %rsi
16264- movq \offset+64(%rsp), %rdi
16265+ .macro LOAD_ARGS skiprax=0
16266+ movq R11(%rsp), %r11
16267+ movq R10(%rsp), %r10
16268+ movq R9(%rsp), %r9
16269+ movq R8(%rsp), %r8
16270+ movq RCX(%rsp), %rcx
16271+ movq RDX(%rsp), %rdx
16272+ movq RSI(%rsp), %rsi
16273+ movq RDI(%rsp), %rdi
16274 .if \skiprax
16275 .else
16276- movq \offset+72(%rsp), %rax
16277+ movq ORIG_RAX(%rsp), %rax
16278 .endif
16279 .endm
16280
16281-#define REST_SKIP (6*8)
16282-
16283 .macro SAVE_REST
16284- subq $REST_SKIP, %rsp
16285- CFI_ADJUST_CFA_OFFSET REST_SKIP
16286- movq_cfi rbx, 5*8
16287- movq_cfi rbp, 4*8
16288- movq_cfi r12, 3*8
16289- movq_cfi r13, 2*8
16290- movq_cfi r14, 1*8
16291- movq_cfi r15, 0*8
16292+ movq_cfi rbx, RBX
16293+ movq_cfi rbp, RBP
16294+
16295+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16296+ movq_cfi r12, R12
16297+#endif
16298+
16299+ movq_cfi r13, R13
16300+ movq_cfi r14, R14
16301+ movq_cfi r15, R15
16302 .endm
16303
16304 .macro RESTORE_REST
16305- movq_cfi_restore 0*8, r15
16306- movq_cfi_restore 1*8, r14
16307- movq_cfi_restore 2*8, r13
16308- movq_cfi_restore 3*8, r12
16309- movq_cfi_restore 4*8, rbp
16310- movq_cfi_restore 5*8, rbx
16311- addq $REST_SKIP, %rsp
16312- CFI_ADJUST_CFA_OFFSET -(REST_SKIP)
16313+ movq_cfi_restore R15, r15
16314+ movq_cfi_restore R14, r14
16315+ movq_cfi_restore R13, r13
16316+
16317+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16318+ movq_cfi_restore R12, r12
16319+#endif
16320+
16321+ movq_cfi_restore RBP, rbp
16322+ movq_cfi_restore RBX, rbx
16323 .endm
16324
16325 .macro SAVE_ALL
16326diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
16327index f50de69..2b0a458 100644
16328--- a/arch/x86/include/asm/checksum_32.h
16329+++ b/arch/x86/include/asm/checksum_32.h
16330@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
16331 int len, __wsum sum,
16332 int *src_err_ptr, int *dst_err_ptr);
16333
16334+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
16335+ int len, __wsum sum,
16336+ int *src_err_ptr, int *dst_err_ptr);
16337+
16338+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
16339+ int len, __wsum sum,
16340+ int *src_err_ptr, int *dst_err_ptr);
16341+
16342 /*
16343 * Note: when you get a NULL pointer exception here this means someone
16344 * passed in an incorrect kernel address to one of these functions.
16345@@ -53,7 +61,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
16346
16347 might_sleep();
16348 stac();
16349- ret = csum_partial_copy_generic((__force void *)src, dst,
16350+ ret = csum_partial_copy_generic_from_user((__force void *)src, dst,
16351 len, sum, err_ptr, NULL);
16352 clac();
16353
16354@@ -187,7 +195,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
16355 might_sleep();
16356 if (access_ok(VERIFY_WRITE, dst, len)) {
16357 stac();
16358- ret = csum_partial_copy_generic(src, (__force void *)dst,
16359+ ret = csum_partial_copy_generic_to_user(src, (__force void *)dst,
16360 len, sum, NULL, err_ptr);
16361 clac();
16362 return ret;
16363diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
16364index 99c105d7..2f667ac 100644
16365--- a/arch/x86/include/asm/cmpxchg.h
16366+++ b/arch/x86/include/asm/cmpxchg.h
16367@@ -16,8 +16,12 @@ extern void __cmpxchg_wrong_size(void)
16368 __compiletime_error("Bad argument size for cmpxchg");
16369 extern void __xadd_wrong_size(void)
16370 __compiletime_error("Bad argument size for xadd");
16371+extern void __xadd_check_overflow_wrong_size(void)
16372+ __compiletime_error("Bad argument size for xadd_check_overflow");
16373 extern void __add_wrong_size(void)
16374 __compiletime_error("Bad argument size for add");
16375+extern void __add_check_overflow_wrong_size(void)
16376+ __compiletime_error("Bad argument size for add_check_overflow");
16377
16378 /*
16379 * Constants for operation sizes. On 32-bit, the 64-bit size it set to
16380@@ -69,6 +73,38 @@ extern void __add_wrong_size(void)
16381 __ret; \
16382 })
16383
16384+#ifdef CONFIG_PAX_REFCOUNT
16385+#define __xchg_op_check_overflow(ptr, arg, op, lock) \
16386+ ({ \
16387+ __typeof__ (*(ptr)) __ret = (arg); \
16388+ switch (sizeof(*(ptr))) { \
16389+ case __X86_CASE_L: \
16390+ asm volatile (lock #op "l %0, %1\n" \
16391+ "jno 0f\n" \
16392+ "mov %0,%1\n" \
16393+ "int $4\n0:\n" \
16394+ _ASM_EXTABLE(0b, 0b) \
16395+ : "+r" (__ret), "+m" (*(ptr)) \
16396+ : : "memory", "cc"); \
16397+ break; \
16398+ case __X86_CASE_Q: \
16399+ asm volatile (lock #op "q %q0, %1\n" \
16400+ "jno 0f\n" \
16401+ "mov %0,%1\n" \
16402+ "int $4\n0:\n" \
16403+ _ASM_EXTABLE(0b, 0b) \
16404+ : "+r" (__ret), "+m" (*(ptr)) \
16405+ : : "memory", "cc"); \
16406+ break; \
16407+ default: \
16408+ __ ## op ## _check_overflow_wrong_size(); \
16409+ } \
16410+ __ret; \
16411+ })
16412+#else
16413+#define __xchg_op_check_overflow(ptr, arg, op, lock) __xchg_op(ptr, arg, op, lock)
16414+#endif
16415+
16416 /*
16417 * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
16418 * Since this is generally used to protect other memory information, we
16419@@ -167,6 +203,9 @@ extern void __add_wrong_size(void)
16420 #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ")
16421 #define xadd_local(ptr, inc) __xadd((ptr), (inc), "")
16422
16423+#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock)
16424+#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
16425+
16426 #define __add(ptr, inc, lock) \
16427 ({ \
16428 __typeof__ (*(ptr)) __ret = (inc); \
16429diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
16430index 59c6c40..5e0b22c 100644
16431--- a/arch/x86/include/asm/compat.h
16432+++ b/arch/x86/include/asm/compat.h
16433@@ -41,7 +41,7 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
16434 typedef u32 compat_uint_t;
16435 typedef u32 compat_ulong_t;
16436 typedef u64 __attribute__((aligned(4))) compat_u64;
16437-typedef u32 compat_uptr_t;
16438+typedef u32 __user compat_uptr_t;
16439
16440 struct compat_timespec {
16441 compat_time_t tv_sec;
16442diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
16443index 90a5485..43b6211 100644
16444--- a/arch/x86/include/asm/cpufeature.h
16445+++ b/arch/x86/include/asm/cpufeature.h
16446@@ -213,7 +213,7 @@
16447 #define X86_FEATURE_PAUSEFILTER ( 8*32+13) /* AMD filtered pause intercept */
16448 #define X86_FEATURE_PFTHRESHOLD ( 8*32+14) /* AMD pause filter threshold */
16449 #define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer vmmcall to vmcall */
16450-
16451+#define X86_FEATURE_STRONGUDEREF (8*32+31) /* PaX PCID based strong UDEREF */
16452
16453 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
16454 #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
16455@@ -221,7 +221,7 @@
16456 #define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */
16457 #define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */
16458 #define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */
16459-#define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */
16460+#define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Prevention */
16461 #define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */
16462 #define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */
16463 #define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */
16464@@ -390,6 +390,7 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
16465 #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU)
16466 #define cpu_has_topoext boot_cpu_has(X86_FEATURE_TOPOEXT)
16467 #define cpu_has_bpext boot_cpu_has(X86_FEATURE_BPEXT)
16468+#define cpu_has_pcid boot_cpu_has(X86_FEATURE_PCID)
16469
16470 #if __GNUC__ >= 4
16471 extern void warn_pre_alternatives(void);
16472@@ -441,7 +442,8 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16473
16474 #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS
16475 t_warn:
16476- warn_pre_alternatives();
16477+ if (bit != X86_FEATURE_PCID && bit != X86_FEATURE_INVPCID)
16478+ warn_pre_alternatives();
16479 return false;
16480 #endif
16481
16482@@ -461,7 +463,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16483 ".section .discard,\"aw\",@progbits\n"
16484 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16485 ".previous\n"
16486- ".section .altinstr_replacement,\"ax\"\n"
16487+ ".section .altinstr_replacement,\"a\"\n"
16488 "3: movb $1,%0\n"
16489 "4:\n"
16490 ".previous\n"
16491@@ -498,7 +500,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16492 " .byte 2b - 1b\n" /* src len */
16493 " .byte 4f - 3f\n" /* repl len */
16494 ".previous\n"
16495- ".section .altinstr_replacement,\"ax\"\n"
16496+ ".section .altinstr_replacement,\"a\"\n"
16497 "3: .byte 0xe9\n .long %l[t_no] - 2b\n"
16498 "4:\n"
16499 ".previous\n"
16500@@ -531,7 +533,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16501 ".section .discard,\"aw\",@progbits\n"
16502 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16503 ".previous\n"
16504- ".section .altinstr_replacement,\"ax\"\n"
16505+ ".section .altinstr_replacement,\"a\"\n"
16506 "3: movb $0,%0\n"
16507 "4:\n"
16508 ".previous\n"
16509@@ -545,7 +547,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16510 ".section .discard,\"aw\",@progbits\n"
16511 " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */
16512 ".previous\n"
16513- ".section .altinstr_replacement,\"ax\"\n"
16514+ ".section .altinstr_replacement,\"a\"\n"
16515 "5: movb $1,%0\n"
16516 "6:\n"
16517 ".previous\n"
16518diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
16519index a94b82e..59ecefa 100644
16520--- a/arch/x86/include/asm/desc.h
16521+++ b/arch/x86/include/asm/desc.h
16522@@ -4,6 +4,7 @@
16523 #include <asm/desc_defs.h>
16524 #include <asm/ldt.h>
16525 #include <asm/mmu.h>
16526+#include <asm/pgtable.h>
16527
16528 #include <linux/smp.h>
16529 #include <linux/percpu.h>
16530@@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16531
16532 desc->type = (info->read_exec_only ^ 1) << 1;
16533 desc->type |= info->contents << 2;
16534+ desc->type |= info->seg_not_present ^ 1;
16535
16536 desc->s = 1;
16537 desc->dpl = 0x3;
16538@@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16539 }
16540
16541 extern struct desc_ptr idt_descr;
16542-extern gate_desc idt_table[];
16543-extern struct desc_ptr debug_idt_descr;
16544-extern gate_desc debug_idt_table[];
16545-
16546-struct gdt_page {
16547- struct desc_struct gdt[GDT_ENTRIES];
16548-} __attribute__((aligned(PAGE_SIZE)));
16549-
16550-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
16551+extern gate_desc idt_table[IDT_ENTRIES];
16552+extern const struct desc_ptr debug_idt_descr;
16553+extern gate_desc debug_idt_table[IDT_ENTRIES];
16554
16555+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
16556 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
16557 {
16558- return per_cpu(gdt_page, cpu).gdt;
16559+ return cpu_gdt_table[cpu];
16560 }
16561
16562 #ifdef CONFIG_X86_64
16563@@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
16564 unsigned long base, unsigned dpl, unsigned flags,
16565 unsigned short seg)
16566 {
16567- gate->a = (seg << 16) | (base & 0xffff);
16568- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
16569+ gate->gate.offset_low = base;
16570+ gate->gate.seg = seg;
16571+ gate->gate.reserved = 0;
16572+ gate->gate.type = type;
16573+ gate->gate.s = 0;
16574+ gate->gate.dpl = dpl;
16575+ gate->gate.p = 1;
16576+ gate->gate.offset_high = base >> 16;
16577 }
16578
16579 #endif
16580@@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
16581
16582 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
16583 {
16584+ pax_open_kernel();
16585 memcpy(&idt[entry], gate, sizeof(*gate));
16586+ pax_close_kernel();
16587 }
16588
16589 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
16590 {
16591+ pax_open_kernel();
16592 memcpy(&ldt[entry], desc, 8);
16593+ pax_close_kernel();
16594 }
16595
16596 static inline void
16597@@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
16598 default: size = sizeof(*gdt); break;
16599 }
16600
16601+ pax_open_kernel();
16602 memcpy(&gdt[entry], desc, size);
16603+ pax_close_kernel();
16604 }
16605
16606 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
16607@@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
16608
16609 static inline void native_load_tr_desc(void)
16610 {
16611+ pax_open_kernel();
16612 asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
16613+ pax_close_kernel();
16614 }
16615
16616 static inline void native_load_gdt(const struct desc_ptr *dtr)
16617@@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
16618 struct desc_struct *gdt = get_cpu_gdt_table(cpu);
16619 unsigned int i;
16620
16621+ pax_open_kernel();
16622 for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
16623 gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
16624+ pax_close_kernel();
16625 }
16626
16627 /* This intentionally ignores lm, since 32-bit apps don't have that field. */
16628@@ -295,7 +308,7 @@ static inline void load_LDT(mm_context_t *pc)
16629 preempt_enable();
16630 }
16631
16632-static inline unsigned long get_desc_base(const struct desc_struct *desc)
16633+static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
16634 {
16635 return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
16636 }
16637@@ -319,7 +332,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
16638 }
16639
16640 #ifdef CONFIG_X86_64
16641-static inline void set_nmi_gate(int gate, void *addr)
16642+static inline void set_nmi_gate(int gate, const void *addr)
16643 {
16644 gate_desc s;
16645
16646@@ -329,14 +342,14 @@ static inline void set_nmi_gate(int gate, void *addr)
16647 #endif
16648
16649 #ifdef CONFIG_TRACING
16650-extern struct desc_ptr trace_idt_descr;
16651-extern gate_desc trace_idt_table[];
16652+extern const struct desc_ptr trace_idt_descr;
16653+extern gate_desc trace_idt_table[IDT_ENTRIES];
16654 static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16655 {
16656 write_idt_entry(trace_idt_table, entry, gate);
16657 }
16658
16659-static inline void _trace_set_gate(int gate, unsigned type, void *addr,
16660+static inline void _trace_set_gate(int gate, unsigned type, const void *addr,
16661 unsigned dpl, unsigned ist, unsigned seg)
16662 {
16663 gate_desc s;
16664@@ -356,7 +369,7 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16665 #define _trace_set_gate(gate, type, addr, dpl, ist, seg)
16666 #endif
16667
16668-static inline void _set_gate(int gate, unsigned type, void *addr,
16669+static inline void _set_gate(int gate, unsigned type, const void *addr,
16670 unsigned dpl, unsigned ist, unsigned seg)
16671 {
16672 gate_desc s;
16673@@ -379,9 +392,9 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
16674 #define set_intr_gate(n, addr) \
16675 do { \
16676 BUG_ON((unsigned)n > 0xFF); \
16677- _set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0, \
16678+ _set_gate(n, GATE_INTERRUPT, (const void *)addr, 0, 0, \
16679 __KERNEL_CS); \
16680- _trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
16681+ _trace_set_gate(n, GATE_INTERRUPT, (const void *)trace_##addr,\
16682 0, 0, __KERNEL_CS); \
16683 } while (0)
16684
16685@@ -409,19 +422,19 @@ static inline void alloc_system_vector(int vector)
16686 /*
16687 * This routine sets up an interrupt gate at directory privilege level 3.
16688 */
16689-static inline void set_system_intr_gate(unsigned int n, void *addr)
16690+static inline void set_system_intr_gate(unsigned int n, const void *addr)
16691 {
16692 BUG_ON((unsigned)n > 0xFF);
16693 _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
16694 }
16695
16696-static inline void set_system_trap_gate(unsigned int n, void *addr)
16697+static inline void set_system_trap_gate(unsigned int n, const void *addr)
16698 {
16699 BUG_ON((unsigned)n > 0xFF);
16700 _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
16701 }
16702
16703-static inline void set_trap_gate(unsigned int n, void *addr)
16704+static inline void set_trap_gate(unsigned int n, const void *addr)
16705 {
16706 BUG_ON((unsigned)n > 0xFF);
16707 _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
16708@@ -430,16 +443,16 @@ static inline void set_trap_gate(unsigned int n, void *addr)
16709 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
16710 {
16711 BUG_ON((unsigned)n > 0xFF);
16712- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
16713+ _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
16714 }
16715
16716-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
16717+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
16718 {
16719 BUG_ON((unsigned)n > 0xFF);
16720 _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
16721 }
16722
16723-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
16724+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
16725 {
16726 BUG_ON((unsigned)n > 0xFF);
16727 _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
16728@@ -511,4 +524,17 @@ static inline void load_current_idt(void)
16729 else
16730 load_idt((const struct desc_ptr *)&idt_descr);
16731 }
16732+
16733+#ifdef CONFIG_X86_32
16734+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
16735+{
16736+ struct desc_struct d;
16737+
16738+ if (likely(limit))
16739+ limit = (limit - 1UL) >> PAGE_SHIFT;
16740+ pack_descriptor(&d, base, limit, 0xFB, 0xC);
16741+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
16742+}
16743+#endif
16744+
16745 #endif /* _ASM_X86_DESC_H */
16746diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
16747index 278441f..b95a174 100644
16748--- a/arch/x86/include/asm/desc_defs.h
16749+++ b/arch/x86/include/asm/desc_defs.h
16750@@ -31,6 +31,12 @@ struct desc_struct {
16751 unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
16752 unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
16753 };
16754+ struct {
16755+ u16 offset_low;
16756+ u16 seg;
16757+ unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
16758+ unsigned offset_high: 16;
16759+ } gate;
16760 };
16761 } __attribute__((packed));
16762
16763diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
16764index ced283a..ffe04cc 100644
16765--- a/arch/x86/include/asm/div64.h
16766+++ b/arch/x86/include/asm/div64.h
16767@@ -39,7 +39,7 @@
16768 __mod; \
16769 })
16770
16771-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16772+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16773 {
16774 union {
16775 u64 v64;
16776diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
16777index ca3347a..1a5082a 100644
16778--- a/arch/x86/include/asm/elf.h
16779+++ b/arch/x86/include/asm/elf.h
16780@@ -75,9 +75,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
16781
16782 #include <asm/vdso.h>
16783
16784-#ifdef CONFIG_X86_64
16785-extern unsigned int vdso64_enabled;
16786-#endif
16787 #if defined(CONFIG_X86_32) || defined(CONFIG_COMPAT)
16788 extern unsigned int vdso32_enabled;
16789 #endif
16790@@ -249,7 +246,25 @@ extern int force_personality32;
16791 the loader. We need to make sure that it is out of the way of the program
16792 that it will "exec", and that there is sufficient room for the brk. */
16793
16794+#ifdef CONFIG_PAX_SEGMEXEC
16795+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
16796+#else
16797 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
16798+#endif
16799+
16800+#ifdef CONFIG_PAX_ASLR
16801+#ifdef CONFIG_X86_32
16802+#define PAX_ELF_ET_DYN_BASE 0x10000000UL
16803+
16804+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16805+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16806+#else
16807+#define PAX_ELF_ET_DYN_BASE 0x400000UL
16808+
16809+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16810+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16811+#endif
16812+#endif
16813
16814 /* This yields a mask that user programs can use to figure out what
16815 instruction set this CPU supports. This could be done in user space,
16816@@ -298,17 +313,13 @@ do { \
16817
16818 #define ARCH_DLINFO \
16819 do { \
16820- if (vdso64_enabled) \
16821- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16822- (unsigned long __force)current->mm->context.vdso); \
16823+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16824 } while (0)
16825
16826 /* As a historical oddity, the x32 and x86_64 vDSOs are controlled together. */
16827 #define ARCH_DLINFO_X32 \
16828 do { \
16829- if (vdso64_enabled) \
16830- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16831- (unsigned long __force)current->mm->context.vdso); \
16832+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16833 } while (0)
16834
16835 #define AT_SYSINFO 32
16836@@ -323,10 +334,10 @@ else \
16837
16838 #endif /* !CONFIG_X86_32 */
16839
16840-#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
16841+#define VDSO_CURRENT_BASE (current->mm->context.vdso)
16842
16843 #define VDSO_ENTRY \
16844- ((unsigned long)current->mm->context.vdso + \
16845+ (current->mm->context.vdso + \
16846 selected_vdso32->sym___kernel_vsyscall)
16847
16848 struct linux_binprm;
16849@@ -338,9 +349,6 @@ extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
16850 int uses_interp);
16851 #define compat_arch_setup_additional_pages compat_arch_setup_additional_pages
16852
16853-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
16854-#define arch_randomize_brk arch_randomize_brk
16855-
16856 /*
16857 * True on X86_32 or when emulating IA32 on X86_64
16858 */
16859diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
16860index 77a99ac..39ff7f5 100644
16861--- a/arch/x86/include/asm/emergency-restart.h
16862+++ b/arch/x86/include/asm/emergency-restart.h
16863@@ -1,6 +1,6 @@
16864 #ifndef _ASM_X86_EMERGENCY_RESTART_H
16865 #define _ASM_X86_EMERGENCY_RESTART_H
16866
16867-extern void machine_emergency_restart(void);
16868+extern void machine_emergency_restart(void) __noreturn;
16869
16870 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
16871diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
16872index 1c7eefe..d0e4702 100644
16873--- a/arch/x86/include/asm/floppy.h
16874+++ b/arch/x86/include/asm/floppy.h
16875@@ -229,18 +229,18 @@ static struct fd_routine_l {
16876 int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
16877 } fd_routine[] = {
16878 {
16879- request_dma,
16880- free_dma,
16881- get_dma_residue,
16882- dma_mem_alloc,
16883- hard_dma_setup
16884+ ._request_dma = request_dma,
16885+ ._free_dma = free_dma,
16886+ ._get_dma_residue = get_dma_residue,
16887+ ._dma_mem_alloc = dma_mem_alloc,
16888+ ._dma_setup = hard_dma_setup
16889 },
16890 {
16891- vdma_request_dma,
16892- vdma_nop,
16893- vdma_get_dma_residue,
16894- vdma_mem_alloc,
16895- vdma_dma_setup
16896+ ._request_dma = vdma_request_dma,
16897+ ._free_dma = vdma_nop,
16898+ ._get_dma_residue = vdma_get_dma_residue,
16899+ ._dma_mem_alloc = vdma_mem_alloc,
16900+ ._dma_setup = vdma_dma_setup
16901 }
16902 };
16903
16904diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
16905index 72ba21a..79f3f66 100644
16906--- a/arch/x86/include/asm/fpu-internal.h
16907+++ b/arch/x86/include/asm/fpu-internal.h
16908@@ -124,8 +124,11 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16909 #define user_insn(insn, output, input...) \
16910 ({ \
16911 int err; \
16912+ pax_open_userland(); \
16913 asm volatile(ASM_STAC "\n" \
16914- "1:" #insn "\n\t" \
16915+ "1:" \
16916+ __copyuser_seg \
16917+ #insn "\n\t" \
16918 "2: " ASM_CLAC "\n" \
16919 ".section .fixup,\"ax\"\n" \
16920 "3: movl $-1,%[err]\n" \
16921@@ -134,6 +137,7 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16922 _ASM_EXTABLE(1b, 3b) \
16923 : [err] "=r" (err), output \
16924 : "0"(0), input); \
16925+ pax_close_userland(); \
16926 err; \
16927 })
16928
16929@@ -300,7 +304,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
16930 "fnclex\n\t"
16931 "emms\n\t"
16932 "fildl %P[addr]" /* set F?P to defined value */
16933- : : [addr] "m" (tsk->thread.fpu.has_fpu));
16934+ : : [addr] "m" (init_tss[raw_smp_processor_id()].x86_tss.sp0));
16935 }
16936
16937 return fpu_restore_checking(&tsk->thread.fpu);
16938diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
16939index b4c1f54..e290c08 100644
16940--- a/arch/x86/include/asm/futex.h
16941+++ b/arch/x86/include/asm/futex.h
16942@@ -12,6 +12,7 @@
16943 #include <asm/smap.h>
16944
16945 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
16946+ typecheck(u32 __user *, uaddr); \
16947 asm volatile("\t" ASM_STAC "\n" \
16948 "1:\t" insn "\n" \
16949 "2:\t" ASM_CLAC "\n" \
16950@@ -20,15 +21,16 @@
16951 "\tjmp\t2b\n" \
16952 "\t.previous\n" \
16953 _ASM_EXTABLE(1b, 3b) \
16954- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
16955+ : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr)) \
16956 : "i" (-EFAULT), "0" (oparg), "1" (0))
16957
16958 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
16959+ typecheck(u32 __user *, uaddr); \
16960 asm volatile("\t" ASM_STAC "\n" \
16961 "1:\tmovl %2, %0\n" \
16962 "\tmovl\t%0, %3\n" \
16963 "\t" insn "\n" \
16964- "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
16965+ "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n" \
16966 "\tjnz\t1b\n" \
16967 "3:\t" ASM_CLAC "\n" \
16968 "\t.section .fixup,\"ax\"\n" \
16969@@ -38,7 +40,7 @@
16970 _ASM_EXTABLE(1b, 4b) \
16971 _ASM_EXTABLE(2b, 4b) \
16972 : "=&a" (oldval), "=&r" (ret), \
16973- "+m" (*uaddr), "=&r" (tem) \
16974+ "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \
16975 : "r" (oparg), "i" (-EFAULT), "1" (0))
16976
16977 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16978@@ -57,12 +59,13 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16979
16980 pagefault_disable();
16981
16982+ pax_open_userland();
16983 switch (op) {
16984 case FUTEX_OP_SET:
16985- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
16986+ __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
16987 break;
16988 case FUTEX_OP_ADD:
16989- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
16990+ __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
16991 uaddr, oparg);
16992 break;
16993 case FUTEX_OP_OR:
16994@@ -77,6 +80,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16995 default:
16996 ret = -ENOSYS;
16997 }
16998+ pax_close_userland();
16999
17000 pagefault_enable();
17001
17002diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
17003index 9662290..49ca5e5 100644
17004--- a/arch/x86/include/asm/hw_irq.h
17005+++ b/arch/x86/include/asm/hw_irq.h
17006@@ -160,8 +160,8 @@ static inline void unlock_vector_lock(void) {}
17007 #endif /* CONFIG_X86_LOCAL_APIC */
17008
17009 /* Statistics */
17010-extern atomic_t irq_err_count;
17011-extern atomic_t irq_mis_count;
17012+extern atomic_unchecked_t irq_err_count;
17013+extern atomic_unchecked_t irq_mis_count;
17014
17015 /* EISA */
17016 extern void eisa_set_level_irq(unsigned int irq);
17017diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
17018index ccffa53..3c90c87 100644
17019--- a/arch/x86/include/asm/i8259.h
17020+++ b/arch/x86/include/asm/i8259.h
17021@@ -62,7 +62,7 @@ struct legacy_pic {
17022 void (*init)(int auto_eoi);
17023 int (*irq_pending)(unsigned int irq);
17024 void (*make_irq)(unsigned int irq);
17025-};
17026+} __do_const;
17027
17028 extern struct legacy_pic *legacy_pic;
17029 extern struct legacy_pic null_legacy_pic;
17030diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
17031index 34a5b93..27e40a6 100644
17032--- a/arch/x86/include/asm/io.h
17033+++ b/arch/x86/include/asm/io.h
17034@@ -52,12 +52,12 @@ static inline void name(type val, volatile void __iomem *addr) \
17035 "m" (*(volatile type __force *)addr) barrier); }
17036
17037 build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
17038-build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
17039-build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
17040+build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
17041+build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
17042
17043 build_mmio_read(__readb, "b", unsigned char, "=q", )
17044-build_mmio_read(__readw, "w", unsigned short, "=r", )
17045-build_mmio_read(__readl, "l", unsigned int, "=r", )
17046+build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
17047+build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
17048
17049 build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
17050 build_mmio_write(writew, "w", unsigned short, "r", :"memory")
17051@@ -113,7 +113,7 @@ build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
17052 * this function
17053 */
17054
17055-static inline phys_addr_t virt_to_phys(volatile void *address)
17056+static inline phys_addr_t __intentional_overflow(-1) virt_to_phys(volatile void *address)
17057 {
17058 return __pa(address);
17059 }
17060@@ -189,7 +189,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
17061 return ioremap_nocache(offset, size);
17062 }
17063
17064-extern void iounmap(volatile void __iomem *addr);
17065+extern void iounmap(const volatile void __iomem *addr);
17066
17067 extern void set_iounmap_nonlazy(void);
17068
17069@@ -199,6 +199,17 @@ extern void set_iounmap_nonlazy(void);
17070
17071 #include <linux/vmalloc.h>
17072
17073+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
17074+static inline int valid_phys_addr_range(unsigned long addr, size_t count)
17075+{
17076+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
17077+}
17078+
17079+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
17080+{
17081+ return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
17082+}
17083+
17084 /*
17085 * Convert a virtual cached pointer to an uncached pointer
17086 */
17087diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
17088index 0a8b519..80e7d5b 100644
17089--- a/arch/x86/include/asm/irqflags.h
17090+++ b/arch/x86/include/asm/irqflags.h
17091@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
17092 sti; \
17093 sysexit
17094
17095+#define GET_CR0_INTO_RDI mov %cr0, %rdi
17096+#define SET_RDI_INTO_CR0 mov %rdi, %cr0
17097+#define GET_CR3_INTO_RDI mov %cr3, %rdi
17098+#define SET_RDI_INTO_CR3 mov %rdi, %cr3
17099+
17100 #else
17101 #define INTERRUPT_RETURN iret
17102 #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
17103diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
17104index 4421b5d..8543006 100644
17105--- a/arch/x86/include/asm/kprobes.h
17106+++ b/arch/x86/include/asm/kprobes.h
17107@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t;
17108 #define RELATIVEJUMP_SIZE 5
17109 #define RELATIVECALL_OPCODE 0xe8
17110 #define RELATIVE_ADDR_SIZE 4
17111-#define MAX_STACK_SIZE 64
17112-#define MIN_STACK_SIZE(ADDR) \
17113- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
17114- THREAD_SIZE - (unsigned long)(ADDR))) \
17115- ? (MAX_STACK_SIZE) \
17116- : (((unsigned long)current_thread_info()) + \
17117- THREAD_SIZE - (unsigned long)(ADDR)))
17118+#define MAX_STACK_SIZE 64UL
17119+#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
17120
17121 #define flush_insn_slot(p) do { } while (0)
17122
17123diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
17124index 4ad6560..75c7bdd 100644
17125--- a/arch/x86/include/asm/local.h
17126+++ b/arch/x86/include/asm/local.h
17127@@ -10,33 +10,97 @@ typedef struct {
17128 atomic_long_t a;
17129 } local_t;
17130
17131+typedef struct {
17132+ atomic_long_unchecked_t a;
17133+} local_unchecked_t;
17134+
17135 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
17136
17137 #define local_read(l) atomic_long_read(&(l)->a)
17138+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
17139 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
17140+#define local_set_unchecked(l, i) atomic_long_set_unchecked(&(l)->a, (i))
17141
17142 static inline void local_inc(local_t *l)
17143 {
17144- asm volatile(_ASM_INC "%0"
17145+ asm volatile(_ASM_INC "%0\n"
17146+
17147+#ifdef CONFIG_PAX_REFCOUNT
17148+ "jno 0f\n"
17149+ _ASM_DEC "%0\n"
17150+ "int $4\n0:\n"
17151+ _ASM_EXTABLE(0b, 0b)
17152+#endif
17153+
17154+ : "+m" (l->a.counter));
17155+}
17156+
17157+static inline void local_inc_unchecked(local_unchecked_t *l)
17158+{
17159+ asm volatile(_ASM_INC "%0\n"
17160 : "+m" (l->a.counter));
17161 }
17162
17163 static inline void local_dec(local_t *l)
17164 {
17165- asm volatile(_ASM_DEC "%0"
17166+ asm volatile(_ASM_DEC "%0\n"
17167+
17168+#ifdef CONFIG_PAX_REFCOUNT
17169+ "jno 0f\n"
17170+ _ASM_INC "%0\n"
17171+ "int $4\n0:\n"
17172+ _ASM_EXTABLE(0b, 0b)
17173+#endif
17174+
17175+ : "+m" (l->a.counter));
17176+}
17177+
17178+static inline void local_dec_unchecked(local_unchecked_t *l)
17179+{
17180+ asm volatile(_ASM_DEC "%0\n"
17181 : "+m" (l->a.counter));
17182 }
17183
17184 static inline void local_add(long i, local_t *l)
17185 {
17186- asm volatile(_ASM_ADD "%1,%0"
17187+ asm volatile(_ASM_ADD "%1,%0\n"
17188+
17189+#ifdef CONFIG_PAX_REFCOUNT
17190+ "jno 0f\n"
17191+ _ASM_SUB "%1,%0\n"
17192+ "int $4\n0:\n"
17193+ _ASM_EXTABLE(0b, 0b)
17194+#endif
17195+
17196+ : "+m" (l->a.counter)
17197+ : "ir" (i));
17198+}
17199+
17200+static inline void local_add_unchecked(long i, local_unchecked_t *l)
17201+{
17202+ asm volatile(_ASM_ADD "%1,%0\n"
17203 : "+m" (l->a.counter)
17204 : "ir" (i));
17205 }
17206
17207 static inline void local_sub(long i, local_t *l)
17208 {
17209- asm volatile(_ASM_SUB "%1,%0"
17210+ asm volatile(_ASM_SUB "%1,%0\n"
17211+
17212+#ifdef CONFIG_PAX_REFCOUNT
17213+ "jno 0f\n"
17214+ _ASM_ADD "%1,%0\n"
17215+ "int $4\n0:\n"
17216+ _ASM_EXTABLE(0b, 0b)
17217+#endif
17218+
17219+ : "+m" (l->a.counter)
17220+ : "ir" (i));
17221+}
17222+
17223+static inline void local_sub_unchecked(long i, local_unchecked_t *l)
17224+{
17225+ asm volatile(_ASM_SUB "%1,%0\n"
17226 : "+m" (l->a.counter)
17227 : "ir" (i));
17228 }
17229@@ -52,7 +116,7 @@ static inline void local_sub(long i, local_t *l)
17230 */
17231 static inline int local_sub_and_test(long i, local_t *l)
17232 {
17233- GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
17234+ GEN_BINARY_RMWcc(_ASM_SUB, _ASM_ADD, l->a.counter, "er", i, "%0", "e");
17235 }
17236
17237 /**
17238@@ -65,7 +129,7 @@ static inline int local_sub_and_test(long i, local_t *l)
17239 */
17240 static inline int local_dec_and_test(local_t *l)
17241 {
17242- GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
17243+ GEN_UNARY_RMWcc(_ASM_DEC, _ASM_INC, l->a.counter, "%0", "e");
17244 }
17245
17246 /**
17247@@ -78,7 +142,7 @@ static inline int local_dec_and_test(local_t *l)
17248 */
17249 static inline int local_inc_and_test(local_t *l)
17250 {
17251- GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
17252+ GEN_UNARY_RMWcc(_ASM_INC, _ASM_DEC, l->a.counter, "%0", "e");
17253 }
17254
17255 /**
17256@@ -92,7 +156,7 @@ static inline int local_inc_and_test(local_t *l)
17257 */
17258 static inline int local_add_negative(long i, local_t *l)
17259 {
17260- GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
17261+ GEN_BINARY_RMWcc(_ASM_ADD, _ASM_SUB, l->a.counter, "er", i, "%0", "s");
17262 }
17263
17264 /**
17265@@ -105,6 +169,30 @@ static inline int local_add_negative(long i, local_t *l)
17266 static inline long local_add_return(long i, local_t *l)
17267 {
17268 long __i = i;
17269+ asm volatile(_ASM_XADD "%0, %1\n"
17270+
17271+#ifdef CONFIG_PAX_REFCOUNT
17272+ "jno 0f\n"
17273+ _ASM_MOV "%0,%1\n"
17274+ "int $4\n0:\n"
17275+ _ASM_EXTABLE(0b, 0b)
17276+#endif
17277+
17278+ : "+r" (i), "+m" (l->a.counter)
17279+ : : "memory");
17280+ return i + __i;
17281+}
17282+
17283+/**
17284+ * local_add_return_unchecked - add and return
17285+ * @i: integer value to add
17286+ * @l: pointer to type local_unchecked_t
17287+ *
17288+ * Atomically adds @i to @l and returns @i + @l
17289+ */
17290+static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
17291+{
17292+ long __i = i;
17293 asm volatile(_ASM_XADD "%0, %1;"
17294 : "+r" (i), "+m" (l->a.counter)
17295 : : "memory");
17296@@ -121,6 +209,8 @@ static inline long local_sub_return(long i, local_t *l)
17297
17298 #define local_cmpxchg(l, o, n) \
17299 (cmpxchg_local(&((l)->a.counter), (o), (n)))
17300+#define local_cmpxchg_unchecked(l, o, n) \
17301+ (cmpxchg_local(&((l)->a.counter), (o), (n)))
17302 /* Always has a lock prefix */
17303 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
17304
17305diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
17306new file mode 100644
17307index 0000000..2bfd3ba
17308--- /dev/null
17309+++ b/arch/x86/include/asm/mman.h
17310@@ -0,0 +1,15 @@
17311+#ifndef _X86_MMAN_H
17312+#define _X86_MMAN_H
17313+
17314+#include <uapi/asm/mman.h>
17315+
17316+#ifdef __KERNEL__
17317+#ifndef __ASSEMBLY__
17318+#ifdef CONFIG_X86_32
17319+#define arch_mmap_check i386_mmap_check
17320+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
17321+#endif
17322+#endif
17323+#endif
17324+
17325+#endif /* X86_MMAN_H */
17326diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
17327index 09b9620..923aecd 100644
17328--- a/arch/x86/include/asm/mmu.h
17329+++ b/arch/x86/include/asm/mmu.h
17330@@ -9,7 +9,7 @@
17331 * we put the segment information here.
17332 */
17333 typedef struct {
17334- void *ldt;
17335+ struct desc_struct *ldt;
17336 int size;
17337
17338 #ifdef CONFIG_X86_64
17339@@ -18,7 +18,19 @@ typedef struct {
17340 #endif
17341
17342 struct mutex lock;
17343- void __user *vdso;
17344+ unsigned long vdso;
17345+
17346+#ifdef CONFIG_X86_32
17347+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
17348+ unsigned long user_cs_base;
17349+ unsigned long user_cs_limit;
17350+
17351+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17352+ cpumask_t cpu_user_cs_mask;
17353+#endif
17354+
17355+#endif
17356+#endif
17357
17358 atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */
17359 } mm_context_t;
17360diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
17361index 883f6b93..6869d96 100644
17362--- a/arch/x86/include/asm/mmu_context.h
17363+++ b/arch/x86/include/asm/mmu_context.h
17364@@ -42,6 +42,20 @@ void destroy_context(struct mm_struct *mm);
17365
17366 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
17367 {
17368+
17369+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17370+ if (!(static_cpu_has(X86_FEATURE_PCID))) {
17371+ unsigned int i;
17372+ pgd_t *pgd;
17373+
17374+ pax_open_kernel();
17375+ pgd = get_cpu_pgd(smp_processor_id(), kernel);
17376+ for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
17377+ set_pgd_batched(pgd+i, native_make_pgd(0));
17378+ pax_close_kernel();
17379+ }
17380+#endif
17381+
17382 #ifdef CONFIG_SMP
17383 if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
17384 this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
17385@@ -52,16 +66,59 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17386 struct task_struct *tsk)
17387 {
17388 unsigned cpu = smp_processor_id();
17389+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17390+ int tlbstate = TLBSTATE_OK;
17391+#endif
17392
17393 if (likely(prev != next)) {
17394 #ifdef CONFIG_SMP
17395+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17396+ tlbstate = this_cpu_read(cpu_tlbstate.state);
17397+#endif
17398 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17399 this_cpu_write(cpu_tlbstate.active_mm, next);
17400 #endif
17401 cpumask_set_cpu(cpu, mm_cpumask(next));
17402
17403 /* Re-load page tables */
17404+#ifdef CONFIG_PAX_PER_CPU_PGD
17405+ pax_open_kernel();
17406+
17407+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17408+ if (static_cpu_has(X86_FEATURE_PCID))
17409+ __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17410+ else
17411+#endif
17412+
17413+ __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17414+ __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17415+ pax_close_kernel();
17416+ 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));
17417+
17418+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17419+ if (static_cpu_has(X86_FEATURE_PCID)) {
17420+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
17421+ u64 descriptor[2];
17422+ descriptor[0] = PCID_USER;
17423+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17424+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17425+ descriptor[0] = PCID_KERNEL;
17426+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17427+ }
17428+ } else {
17429+ write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17430+ if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17431+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17432+ else
17433+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17434+ }
17435+ } else
17436+#endif
17437+
17438+ load_cr3(get_cpu_pgd(cpu, kernel));
17439+#else
17440 load_cr3(next->pgd);
17441+#endif
17442 trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
17443
17444 /* Stop flush ipis for the previous mm */
17445@@ -84,9 +141,67 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17446 */
17447 if (unlikely(prev->context.ldt != next->context.ldt))
17448 load_LDT_nolock(&next->context);
17449+
17450+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17451+ if (!(__supported_pte_mask & _PAGE_NX)) {
17452+ smp_mb__before_atomic();
17453+ cpu_clear(cpu, prev->context.cpu_user_cs_mask);
17454+ smp_mb__after_atomic();
17455+ cpu_set(cpu, next->context.cpu_user_cs_mask);
17456+ }
17457+#endif
17458+
17459+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17460+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
17461+ prev->context.user_cs_limit != next->context.user_cs_limit))
17462+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17463+#ifdef CONFIG_SMP
17464+ else if (unlikely(tlbstate != TLBSTATE_OK))
17465+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17466+#endif
17467+#endif
17468+
17469 }
17470+ else {
17471+
17472+#ifdef CONFIG_PAX_PER_CPU_PGD
17473+ pax_open_kernel();
17474+
17475+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17476+ if (static_cpu_has(X86_FEATURE_PCID))
17477+ __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17478+ else
17479+#endif
17480+
17481+ __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17482+ __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17483+ pax_close_kernel();
17484+ 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));
17485+
17486+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17487+ if (static_cpu_has(X86_FEATURE_PCID)) {
17488+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
17489+ u64 descriptor[2];
17490+ descriptor[0] = PCID_USER;
17491+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17492+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17493+ descriptor[0] = PCID_KERNEL;
17494+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17495+ }
17496+ } else {
17497+ write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17498+ if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17499+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17500+ else
17501+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17502+ }
17503+ } else
17504+#endif
17505+
17506+ load_cr3(get_cpu_pgd(cpu, kernel));
17507+#endif
17508+
17509 #ifdef CONFIG_SMP
17510- else {
17511 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17512 BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
17513
17514@@ -103,13 +218,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17515 * tlb flush IPI delivery. We must reload CR3
17516 * to make sure to use no freed page tables.
17517 */
17518+
17519+#ifndef CONFIG_PAX_PER_CPU_PGD
17520 load_cr3(next->pgd);
17521 trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
17522+#endif
17523+
17524 load_mm_cr4(next);
17525 load_LDT_nolock(&next->context);
17526+
17527+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
17528+ if (!(__supported_pte_mask & _PAGE_NX))
17529+ cpu_set(cpu, next->context.cpu_user_cs_mask);
17530+#endif
17531+
17532+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17533+#ifdef CONFIG_PAX_PAGEEXEC
17534+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
17535+#endif
17536+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17537+#endif
17538+
17539 }
17540+#endif
17541 }
17542-#endif
17543 }
17544
17545 #define activate_mm(prev, next) \
17546diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
17547index e3b7819..b257c64 100644
17548--- a/arch/x86/include/asm/module.h
17549+++ b/arch/x86/include/asm/module.h
17550@@ -5,6 +5,7 @@
17551
17552 #ifdef CONFIG_X86_64
17553 /* X86_64 does not define MODULE_PROC_FAMILY */
17554+#define MODULE_PROC_FAMILY ""
17555 #elif defined CONFIG_M486
17556 #define MODULE_PROC_FAMILY "486 "
17557 #elif defined CONFIG_M586
17558@@ -57,8 +58,20 @@
17559 #error unknown processor family
17560 #endif
17561
17562-#ifdef CONFIG_X86_32
17563-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
17564+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
17565+#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
17566+#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
17567+#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
17568+#else
17569+#define MODULE_PAX_KERNEXEC ""
17570 #endif
17571
17572+#ifdef CONFIG_PAX_MEMORY_UDEREF
17573+#define MODULE_PAX_UDEREF "UDEREF "
17574+#else
17575+#define MODULE_PAX_UDEREF ""
17576+#endif
17577+
17578+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
17579+
17580 #endif /* _ASM_X86_MODULE_H */
17581diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
17582index 5f2fc44..106caa6 100644
17583--- a/arch/x86/include/asm/nmi.h
17584+++ b/arch/x86/include/asm/nmi.h
17585@@ -36,26 +36,35 @@ enum {
17586
17587 typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
17588
17589+struct nmiaction;
17590+
17591+struct nmiwork {
17592+ const struct nmiaction *action;
17593+ u64 max_duration;
17594+ struct irq_work irq_work;
17595+};
17596+
17597 struct nmiaction {
17598 struct list_head list;
17599 nmi_handler_t handler;
17600- u64 max_duration;
17601- struct irq_work irq_work;
17602 unsigned long flags;
17603 const char *name;
17604-};
17605+ struct nmiwork *work;
17606+} __do_const;
17607
17608 #define register_nmi_handler(t, fn, fg, n, init...) \
17609 ({ \
17610- static struct nmiaction init fn##_na = { \
17611+ static struct nmiwork fn##_nw; \
17612+ static const struct nmiaction init fn##_na = { \
17613 .handler = (fn), \
17614 .name = (n), \
17615 .flags = (fg), \
17616+ .work = &fn##_nw, \
17617 }; \
17618 __register_nmi_handler((t), &fn##_na); \
17619 })
17620
17621-int __register_nmi_handler(unsigned int, struct nmiaction *);
17622+int __register_nmi_handler(unsigned int, const struct nmiaction *);
17623
17624 void unregister_nmi_handler(unsigned int, const char *);
17625
17626diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
17627index 802dde3..9183e68 100644
17628--- a/arch/x86/include/asm/page.h
17629+++ b/arch/x86/include/asm/page.h
17630@@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17631 __phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
17632
17633 #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
17634+#define __early_va(x) ((void *)((unsigned long)(x)+__START_KERNEL_map - phys_base))
17635
17636 #define __boot_va(x) __va(x)
17637 #define __boot_pa(x) __pa(x)
17638@@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17639 * virt_to_page(kaddr) returns a valid pointer if and only if
17640 * virt_addr_valid(kaddr) returns true.
17641 */
17642-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17643 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
17644 extern bool __virt_addr_valid(unsigned long kaddr);
17645 #define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
17646
17647+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
17648+#define virt_to_page(kaddr) \
17649+ ({ \
17650+ const void *__kaddr = (const void *)(kaddr); \
17651+ BUG_ON(!virt_addr_valid(__kaddr)); \
17652+ pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
17653+ })
17654+#else
17655+#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17656+#endif
17657+
17658 #endif /* __ASSEMBLY__ */
17659
17660 #include <asm-generic/memory_model.h>
17661diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
17662index b3bebf9..13ac22e 100644
17663--- a/arch/x86/include/asm/page_64.h
17664+++ b/arch/x86/include/asm/page_64.h
17665@@ -7,9 +7,9 @@
17666
17667 /* duplicated to the one in bootmem.h */
17668 extern unsigned long max_pfn;
17669-extern unsigned long phys_base;
17670+extern const unsigned long phys_base;
17671
17672-static inline unsigned long __phys_addr_nodebug(unsigned long x)
17673+static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
17674 {
17675 unsigned long y = x - __START_KERNEL_map;
17676
17677@@ -20,8 +20,8 @@ static inline unsigned long __phys_addr_nodebug(unsigned long x)
17678 }
17679
17680 #ifdef CONFIG_DEBUG_VIRTUAL
17681-extern unsigned long __phys_addr(unsigned long);
17682-extern unsigned long __phys_addr_symbol(unsigned long);
17683+extern unsigned long __intentional_overflow(-1) __phys_addr(unsigned long);
17684+extern unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long);
17685 #else
17686 #define __phys_addr(x) __phys_addr_nodebug(x)
17687 #define __phys_addr_symbol(x) \
17688diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
17689index 965c47d..ffe0af8 100644
17690--- a/arch/x86/include/asm/paravirt.h
17691+++ b/arch/x86/include/asm/paravirt.h
17692@@ -560,7 +560,7 @@ static inline pmd_t __pmd(pmdval_t val)
17693 return (pmd_t) { ret };
17694 }
17695
17696-static inline pmdval_t pmd_val(pmd_t pmd)
17697+static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
17698 {
17699 pmdval_t ret;
17700
17701@@ -626,6 +626,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
17702 val);
17703 }
17704
17705+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
17706+{
17707+ pgdval_t val = native_pgd_val(pgd);
17708+
17709+ if (sizeof(pgdval_t) > sizeof(long))
17710+ PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
17711+ val, (u64)val >> 32);
17712+ else
17713+ PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
17714+ val);
17715+}
17716+
17717 static inline void pgd_clear(pgd_t *pgdp)
17718 {
17719 set_pgd(pgdp, __pgd(0));
17720@@ -710,6 +722,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
17721 pv_mmu_ops.set_fixmap(idx, phys, flags);
17722 }
17723
17724+#ifdef CONFIG_PAX_KERNEXEC
17725+static inline unsigned long pax_open_kernel(void)
17726+{
17727+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
17728+}
17729+
17730+static inline unsigned long pax_close_kernel(void)
17731+{
17732+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
17733+}
17734+#else
17735+static inline unsigned long pax_open_kernel(void) { return 0; }
17736+static inline unsigned long pax_close_kernel(void) { return 0; }
17737+#endif
17738+
17739 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
17740
17741 static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
17742@@ -906,7 +933,7 @@ extern void default_banner(void);
17743
17744 #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
17745 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
17746-#define PARA_INDIRECT(addr) *%cs:addr
17747+#define PARA_INDIRECT(addr) *%ss:addr
17748 #endif
17749
17750 #define INTERRUPT_RETURN \
17751@@ -981,6 +1008,21 @@ extern void default_banner(void);
17752 PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
17753 CLBR_NONE, \
17754 jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
17755+
17756+#define GET_CR0_INTO_RDI \
17757+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
17758+ mov %rax,%rdi
17759+
17760+#define SET_RDI_INTO_CR0 \
17761+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
17762+
17763+#define GET_CR3_INTO_RDI \
17764+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \
17765+ mov %rax,%rdi
17766+
17767+#define SET_RDI_INTO_CR3 \
17768+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
17769+
17770 #endif /* CONFIG_X86_32 */
17771
17772 #endif /* __ASSEMBLY__ */
17773diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
17774index 7549b8b..f0edfda 100644
17775--- a/arch/x86/include/asm/paravirt_types.h
17776+++ b/arch/x86/include/asm/paravirt_types.h
17777@@ -84,7 +84,7 @@ struct pv_init_ops {
17778 */
17779 unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
17780 unsigned long addr, unsigned len);
17781-};
17782+} __no_const __no_randomize_layout;
17783
17784
17785 struct pv_lazy_ops {
17786@@ -92,13 +92,13 @@ struct pv_lazy_ops {
17787 void (*enter)(void);
17788 void (*leave)(void);
17789 void (*flush)(void);
17790-};
17791+} __no_randomize_layout;
17792
17793 struct pv_time_ops {
17794 unsigned long long (*sched_clock)(void);
17795 unsigned long long (*steal_clock)(int cpu);
17796 unsigned long (*get_tsc_khz)(void);
17797-};
17798+} __no_const __no_randomize_layout;
17799
17800 struct pv_cpu_ops {
17801 /* hooks for various privileged instructions */
17802@@ -192,7 +192,7 @@ struct pv_cpu_ops {
17803
17804 void (*start_context_switch)(struct task_struct *prev);
17805 void (*end_context_switch)(struct task_struct *next);
17806-};
17807+} __no_const __no_randomize_layout;
17808
17809 struct pv_irq_ops {
17810 /*
17811@@ -215,7 +215,7 @@ struct pv_irq_ops {
17812 #ifdef CONFIG_X86_64
17813 void (*adjust_exception_frame)(void);
17814 #endif
17815-};
17816+} __no_randomize_layout;
17817
17818 struct pv_apic_ops {
17819 #ifdef CONFIG_X86_LOCAL_APIC
17820@@ -223,7 +223,7 @@ struct pv_apic_ops {
17821 unsigned long start_eip,
17822 unsigned long start_esp);
17823 #endif
17824-};
17825+} __no_const __no_randomize_layout;
17826
17827 struct pv_mmu_ops {
17828 unsigned long (*read_cr2)(void);
17829@@ -313,6 +313,7 @@ struct pv_mmu_ops {
17830 struct paravirt_callee_save make_pud;
17831
17832 void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
17833+ void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
17834 #endif /* PAGETABLE_LEVELS == 4 */
17835 #endif /* PAGETABLE_LEVELS >= 3 */
17836
17837@@ -324,7 +325,13 @@ struct pv_mmu_ops {
17838 an mfn. We can tell which is which from the index. */
17839 void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
17840 phys_addr_t phys, pgprot_t flags);
17841-};
17842+
17843+#ifdef CONFIG_PAX_KERNEXEC
17844+ unsigned long (*pax_open_kernel)(void);
17845+ unsigned long (*pax_close_kernel)(void);
17846+#endif
17847+
17848+} __no_randomize_layout;
17849
17850 struct arch_spinlock;
17851 #ifdef CONFIG_SMP
17852@@ -336,11 +343,14 @@ typedef u16 __ticket_t;
17853 struct pv_lock_ops {
17854 struct paravirt_callee_save lock_spinning;
17855 void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
17856-};
17857+} __no_randomize_layout;
17858
17859 /* This contains all the paravirt structures: we get a convenient
17860 * number for each function using the offset which we use to indicate
17861- * what to patch. */
17862+ * what to patch.
17863+ * shouldn't be randomized due to the "NEAT TRICK" in paravirt.c
17864+ */
17865+
17866 struct paravirt_patch_template {
17867 struct pv_init_ops pv_init_ops;
17868 struct pv_time_ops pv_time_ops;
17869@@ -349,7 +359,7 @@ struct paravirt_patch_template {
17870 struct pv_apic_ops pv_apic_ops;
17871 struct pv_mmu_ops pv_mmu_ops;
17872 struct pv_lock_ops pv_lock_ops;
17873-};
17874+} __no_randomize_layout;
17875
17876 extern struct pv_info pv_info;
17877 extern struct pv_init_ops pv_init_ops;
17878diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
17879index c4412e9..90e88c5 100644
17880--- a/arch/x86/include/asm/pgalloc.h
17881+++ b/arch/x86/include/asm/pgalloc.h
17882@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
17883 pmd_t *pmd, pte_t *pte)
17884 {
17885 paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17886+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
17887+}
17888+
17889+static inline void pmd_populate_user(struct mm_struct *mm,
17890+ pmd_t *pmd, pte_t *pte)
17891+{
17892+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17893 set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
17894 }
17895
17896@@ -108,12 +115,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
17897
17898 #ifdef CONFIG_X86_PAE
17899 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
17900+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
17901+{
17902+ pud_populate(mm, pudp, pmd);
17903+}
17904 #else /* !CONFIG_X86_PAE */
17905 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17906 {
17907 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17908 set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
17909 }
17910+
17911+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17912+{
17913+ paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17914+ set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
17915+}
17916 #endif /* CONFIG_X86_PAE */
17917
17918 #if PAGETABLE_LEVELS > 3
17919@@ -123,6 +140,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17920 set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
17921 }
17922
17923+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17924+{
17925+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
17926+ set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
17927+}
17928+
17929 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
17930 {
17931 return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
17932diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
17933index fd74a11..35fd5af 100644
17934--- a/arch/x86/include/asm/pgtable-2level.h
17935+++ b/arch/x86/include/asm/pgtable-2level.h
17936@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
17937
17938 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17939 {
17940+ pax_open_kernel();
17941 *pmdp = pmd;
17942+ pax_close_kernel();
17943 }
17944
17945 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17946diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
17947index cdaa58c..e61122b 100644
17948--- a/arch/x86/include/asm/pgtable-3level.h
17949+++ b/arch/x86/include/asm/pgtable-3level.h
17950@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17951
17952 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17953 {
17954+ pax_open_kernel();
17955 set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
17956+ pax_close_kernel();
17957 }
17958
17959 static inline void native_set_pud(pud_t *pudp, pud_t pud)
17960 {
17961+ pax_open_kernel();
17962 set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
17963+ pax_close_kernel();
17964 }
17965
17966 /*
17967diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
17968index a0c35bf..7045c6a 100644
17969--- a/arch/x86/include/asm/pgtable.h
17970+++ b/arch/x86/include/asm/pgtable.h
17971@@ -47,6 +47,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17972
17973 #ifndef __PAGETABLE_PUD_FOLDED
17974 #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
17975+#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd)
17976 #define pgd_clear(pgd) native_pgd_clear(pgd)
17977 #endif
17978
17979@@ -84,12 +85,53 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17980
17981 #define arch_end_context_switch(prev) do {} while(0)
17982
17983+#define pax_open_kernel() native_pax_open_kernel()
17984+#define pax_close_kernel() native_pax_close_kernel()
17985 #endif /* CONFIG_PARAVIRT */
17986
17987+#define __HAVE_ARCH_PAX_OPEN_KERNEL
17988+#define __HAVE_ARCH_PAX_CLOSE_KERNEL
17989+
17990+#ifdef CONFIG_PAX_KERNEXEC
17991+static inline unsigned long native_pax_open_kernel(void)
17992+{
17993+ unsigned long cr0;
17994+
17995+ preempt_disable();
17996+ barrier();
17997+ cr0 = read_cr0() ^ X86_CR0_WP;
17998+ BUG_ON(cr0 & X86_CR0_WP);
17999+ write_cr0(cr0);
18000+ barrier();
18001+ return cr0 ^ X86_CR0_WP;
18002+}
18003+
18004+static inline unsigned long native_pax_close_kernel(void)
18005+{
18006+ unsigned long cr0;
18007+
18008+ barrier();
18009+ cr0 = read_cr0() ^ X86_CR0_WP;
18010+ BUG_ON(!(cr0 & X86_CR0_WP));
18011+ write_cr0(cr0);
18012+ barrier();
18013+ preempt_enable_no_resched();
18014+ return cr0 ^ X86_CR0_WP;
18015+}
18016+#else
18017+static inline unsigned long native_pax_open_kernel(void) { return 0; }
18018+static inline unsigned long native_pax_close_kernel(void) { return 0; }
18019+#endif
18020+
18021 /*
18022 * The following only work if pte_present() is true.
18023 * Undefined behaviour if not..
18024 */
18025+static inline int pte_user(pte_t pte)
18026+{
18027+ return pte_val(pte) & _PAGE_USER;
18028+}
18029+
18030 static inline int pte_dirty(pte_t pte)
18031 {
18032 return pte_flags(pte) & _PAGE_DIRTY;
18033@@ -150,6 +192,11 @@ static inline unsigned long pud_pfn(pud_t pud)
18034 return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
18035 }
18036
18037+static inline unsigned long pgd_pfn(pgd_t pgd)
18038+{
18039+ return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
18040+}
18041+
18042 #define pte_page(pte) pfn_to_page(pte_pfn(pte))
18043
18044 static inline int pmd_large(pmd_t pte)
18045@@ -203,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
18046 return pte_clear_flags(pte, _PAGE_RW);
18047 }
18048
18049+static inline pte_t pte_mkread(pte_t pte)
18050+{
18051+ return __pte(pte_val(pte) | _PAGE_USER);
18052+}
18053+
18054 static inline pte_t pte_mkexec(pte_t pte)
18055 {
18056- return pte_clear_flags(pte, _PAGE_NX);
18057+#ifdef CONFIG_X86_PAE
18058+ if (__supported_pte_mask & _PAGE_NX)
18059+ return pte_clear_flags(pte, _PAGE_NX);
18060+ else
18061+#endif
18062+ return pte_set_flags(pte, _PAGE_USER);
18063+}
18064+
18065+static inline pte_t pte_exprotect(pte_t pte)
18066+{
18067+#ifdef CONFIG_X86_PAE
18068+ if (__supported_pte_mask & _PAGE_NX)
18069+ return pte_set_flags(pte, _PAGE_NX);
18070+ else
18071+#endif
18072+ return pte_clear_flags(pte, _PAGE_USER);
18073 }
18074
18075 static inline pte_t pte_mkdirty(pte_t pte)
18076@@ -420,6 +487,16 @@ pte_t *populate_extra_pte(unsigned long vaddr);
18077 #endif
18078
18079 #ifndef __ASSEMBLY__
18080+
18081+#ifdef CONFIG_PAX_PER_CPU_PGD
18082+extern pgd_t cpu_pgd[NR_CPUS][2][PTRS_PER_PGD];
18083+enum cpu_pgd_type {kernel = 0, user = 1};
18084+static inline pgd_t *get_cpu_pgd(unsigned int cpu, enum cpu_pgd_type type)
18085+{
18086+ return cpu_pgd[cpu][type];
18087+}
18088+#endif
18089+
18090 #include <linux/mm_types.h>
18091 #include <linux/mmdebug.h>
18092 #include <linux/log2.h>
18093@@ -571,7 +648,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
18094 * Currently stuck as a macro due to indirect forward reference to
18095 * linux/mmzone.h's __section_mem_map_addr() definition:
18096 */
18097-#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
18098+#define pud_page(pud) pfn_to_page((pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT)
18099
18100 /* Find an entry in the second-level page table.. */
18101 static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
18102@@ -611,7 +688,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
18103 * Currently stuck as a macro due to indirect forward reference to
18104 * linux/mmzone.h's __section_mem_map_addr() definition:
18105 */
18106-#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
18107+#define pgd_page(pgd) pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
18108
18109 /* to find an entry in a page-table-directory. */
18110 static inline unsigned long pud_index(unsigned long address)
18111@@ -626,7 +703,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
18112
18113 static inline int pgd_bad(pgd_t pgd)
18114 {
18115- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
18116+ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
18117 }
18118
18119 static inline int pgd_none(pgd_t pgd)
18120@@ -649,7 +726,12 @@ static inline int pgd_none(pgd_t pgd)
18121 * pgd_offset() returns a (pgd_t *)
18122 * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
18123 */
18124-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
18125+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
18126+
18127+#ifdef CONFIG_PAX_PER_CPU_PGD
18128+#define pgd_offset_cpu(cpu, type, address) (get_cpu_pgd(cpu, type) + pgd_index(address))
18129+#endif
18130+
18131 /*
18132 * a shortcut which implies the use of the kernel's pgd, instead
18133 * of a process's
18134@@ -660,6 +742,25 @@ static inline int pgd_none(pgd_t pgd)
18135 #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
18136 #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
18137
18138+#ifdef CONFIG_X86_32
18139+#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY
18140+#else
18141+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
18142+#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
18143+
18144+#ifdef CONFIG_PAX_MEMORY_UDEREF
18145+#ifdef __ASSEMBLY__
18146+#define pax_user_shadow_base pax_user_shadow_base(%rip)
18147+#else
18148+extern unsigned long pax_user_shadow_base;
18149+extern pgdval_t clone_pgd_mask;
18150+#endif
18151+#else
18152+#define pax_user_shadow_base (0UL)
18153+#endif
18154+
18155+#endif
18156+
18157 #ifndef __ASSEMBLY__
18158
18159 extern int direct_gbpages;
18160@@ -826,11 +927,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
18161 * dst and src can be on the same page, but the range must not overlap,
18162 * and must not cross a page boundary.
18163 */
18164-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
18165+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
18166 {
18167- memcpy(dst, src, count * sizeof(pgd_t));
18168+ pax_open_kernel();
18169+ while (count--)
18170+ *dst++ = *src++;
18171+ pax_close_kernel();
18172 }
18173
18174+#ifdef CONFIG_PAX_PER_CPU_PGD
18175+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
18176+#endif
18177+
18178+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
18179+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
18180+#else
18181+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
18182+#endif
18183+
18184 #define PTE_SHIFT ilog2(PTRS_PER_PTE)
18185 static inline int page_level_shift(enum pg_level level)
18186 {
18187diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
18188index b6c0b40..3535d47 100644
18189--- a/arch/x86/include/asm/pgtable_32.h
18190+++ b/arch/x86/include/asm/pgtable_32.h
18191@@ -25,9 +25,6 @@
18192 struct mm_struct;
18193 struct vm_area_struct;
18194
18195-extern pgd_t swapper_pg_dir[1024];
18196-extern pgd_t initial_page_table[1024];
18197-
18198 static inline void pgtable_cache_init(void) { }
18199 static inline void check_pgt_cache(void) { }
18200 void paging_init(void);
18201@@ -45,6 +42,12 @@ void paging_init(void);
18202 # include <asm/pgtable-2level.h>
18203 #endif
18204
18205+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
18206+extern pgd_t initial_page_table[PTRS_PER_PGD];
18207+#ifdef CONFIG_X86_PAE
18208+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
18209+#endif
18210+
18211 #if defined(CONFIG_HIGHPTE)
18212 #define pte_offset_map(dir, address) \
18213 ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
18214@@ -59,12 +62,17 @@ void paging_init(void);
18215 /* Clear a kernel PTE and flush it from the TLB */
18216 #define kpte_clear_flush(ptep, vaddr) \
18217 do { \
18218+ pax_open_kernel(); \
18219 pte_clear(&init_mm, (vaddr), (ptep)); \
18220+ pax_close_kernel(); \
18221 __flush_tlb_one((vaddr)); \
18222 } while (0)
18223
18224 #endif /* !__ASSEMBLY__ */
18225
18226+#define HAVE_ARCH_UNMAPPED_AREA
18227+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
18228+
18229 /*
18230 * kern_addr_valid() is (1) for FLATMEM and (0) for
18231 * SPARSEMEM and DISCONTIGMEM
18232diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
18233index 9fb2f2b..b04b4bf 100644
18234--- a/arch/x86/include/asm/pgtable_32_types.h
18235+++ b/arch/x86/include/asm/pgtable_32_types.h
18236@@ -8,7 +8,7 @@
18237 */
18238 #ifdef CONFIG_X86_PAE
18239 # include <asm/pgtable-3level_types.h>
18240-# define PMD_SIZE (1UL << PMD_SHIFT)
18241+# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
18242 # define PMD_MASK (~(PMD_SIZE - 1))
18243 #else
18244 # include <asm/pgtable-2level_types.h>
18245@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
18246 # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
18247 #endif
18248
18249+#ifdef CONFIG_PAX_KERNEXEC
18250+#ifndef __ASSEMBLY__
18251+extern unsigned char MODULES_EXEC_VADDR[];
18252+extern unsigned char MODULES_EXEC_END[];
18253+#endif
18254+#include <asm/boot.h>
18255+#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
18256+#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
18257+#else
18258+#define ktla_ktva(addr) (addr)
18259+#define ktva_ktla(addr) (addr)
18260+#endif
18261+
18262 #define MODULES_VADDR VMALLOC_START
18263 #define MODULES_END VMALLOC_END
18264 #define MODULES_LEN (MODULES_VADDR - MODULES_END)
18265diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
18266index 2ee7811..55aca24 100644
18267--- a/arch/x86/include/asm/pgtable_64.h
18268+++ b/arch/x86/include/asm/pgtable_64.h
18269@@ -16,11 +16,16 @@
18270
18271 extern pud_t level3_kernel_pgt[512];
18272 extern pud_t level3_ident_pgt[512];
18273+extern pud_t level3_vmalloc_start_pgt[512];
18274+extern pud_t level3_vmalloc_end_pgt[512];
18275+extern pud_t level3_vmemmap_pgt[512];
18276+extern pud_t level2_vmemmap_pgt[512];
18277 extern pmd_t level2_kernel_pgt[512];
18278 extern pmd_t level2_fixmap_pgt[512];
18279-extern pmd_t level2_ident_pgt[512];
18280-extern pte_t level1_fixmap_pgt[512];
18281-extern pgd_t init_level4_pgt[];
18282+extern pmd_t level2_ident_pgt[2][512];
18283+extern pte_t level1_fixmap_pgt[3][512];
18284+extern pte_t level1_vsyscall_pgt[512];
18285+extern pgd_t init_level4_pgt[512];
18286
18287 #define swapper_pg_dir init_level4_pgt
18288
18289@@ -62,7 +67,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
18290
18291 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
18292 {
18293+ pax_open_kernel();
18294 *pmdp = pmd;
18295+ pax_close_kernel();
18296 }
18297
18298 static inline void native_pmd_clear(pmd_t *pmd)
18299@@ -98,7 +105,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
18300
18301 static inline void native_set_pud(pud_t *pudp, pud_t pud)
18302 {
18303+ pax_open_kernel();
18304 *pudp = pud;
18305+ pax_close_kernel();
18306 }
18307
18308 static inline void native_pud_clear(pud_t *pud)
18309@@ -108,6 +117,13 @@ static inline void native_pud_clear(pud_t *pud)
18310
18311 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
18312 {
18313+ pax_open_kernel();
18314+ *pgdp = pgd;
18315+ pax_close_kernel();
18316+}
18317+
18318+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
18319+{
18320 *pgdp = pgd;
18321 }
18322
18323diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
18324index 602b602..acb53ed 100644
18325--- a/arch/x86/include/asm/pgtable_64_types.h
18326+++ b/arch/x86/include/asm/pgtable_64_types.h
18327@@ -61,11 +61,16 @@ typedef struct { pteval_t pte; } pte_t;
18328 #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
18329 #define MODULES_END _AC(0xffffffffff000000, UL)
18330 #define MODULES_LEN (MODULES_END - MODULES_VADDR)
18331+#define MODULES_EXEC_VADDR MODULES_VADDR
18332+#define MODULES_EXEC_END MODULES_END
18333 #define ESPFIX_PGD_ENTRY _AC(-2, UL)
18334 #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
18335 #define EFI_VA_START ( -4 * (_AC(1, UL) << 30))
18336 #define EFI_VA_END (-68 * (_AC(1, UL) << 30))
18337
18338+#define ktla_ktva(addr) (addr)
18339+#define ktva_ktla(addr) (addr)
18340+
18341 #define EARLY_DYNAMIC_PAGE_TABLES 64
18342
18343 #endif /* _ASM_X86_PGTABLE_64_DEFS_H */
18344diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
18345index 8c7c108..1c1b77f 100644
18346--- a/arch/x86/include/asm/pgtable_types.h
18347+++ b/arch/x86/include/asm/pgtable_types.h
18348@@ -85,8 +85,10 @@
18349
18350 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
18351 #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
18352-#else
18353+#elif defined(CONFIG_KMEMCHECK) || defined(CONFIG_MEM_SOFT_DIRTY)
18354 #define _PAGE_NX (_AT(pteval_t, 0))
18355+#else
18356+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
18357 #endif
18358
18359 #define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
18360@@ -141,6 +143,9 @@ enum page_cache_mode {
18361 #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
18362 _PAGE_ACCESSED)
18363
18364+#define PAGE_READONLY_NOEXEC PAGE_READONLY
18365+#define PAGE_SHARED_NOEXEC PAGE_SHARED
18366+
18367 #define __PAGE_KERNEL_EXEC \
18368 (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
18369 #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
18370@@ -148,7 +153,7 @@ enum page_cache_mode {
18371 #define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
18372 #define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
18373 #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_NOCACHE)
18374-#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
18375+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER)
18376 #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
18377 #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
18378 #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
18379@@ -194,7 +199,7 @@ enum page_cache_mode {
18380 #ifdef CONFIG_X86_64
18381 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
18382 #else
18383-#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
18384+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18385 #define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18386 #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
18387 #endif
18388@@ -233,7 +238,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
18389 {
18390 return native_pgd_val(pgd) & PTE_FLAGS_MASK;
18391 }
18392+#endif
18393
18394+#if PAGETABLE_LEVELS == 3
18395+#include <asm-generic/pgtable-nopud.h>
18396+#endif
18397+
18398+#if PAGETABLE_LEVELS == 2
18399+#include <asm-generic/pgtable-nopmd.h>
18400+#endif
18401+
18402+#ifndef __ASSEMBLY__
18403 #if PAGETABLE_LEVELS > 3
18404 typedef struct { pudval_t pud; } pud_t;
18405
18406@@ -247,8 +262,6 @@ static inline pudval_t native_pud_val(pud_t pud)
18407 return pud.pud;
18408 }
18409 #else
18410-#include <asm-generic/pgtable-nopud.h>
18411-
18412 static inline pudval_t native_pud_val(pud_t pud)
18413 {
18414 return native_pgd_val(pud.pgd);
18415@@ -268,8 +281,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
18416 return pmd.pmd;
18417 }
18418 #else
18419-#include <asm-generic/pgtable-nopmd.h>
18420-
18421 static inline pmdval_t native_pmd_val(pmd_t pmd)
18422 {
18423 return native_pgd_val(pmd.pud.pgd);
18424@@ -362,7 +373,6 @@ typedef struct page *pgtable_t;
18425
18426 extern pteval_t __supported_pte_mask;
18427 extern void set_nx(void);
18428-extern int nx_enabled;
18429
18430 #define pgprot_writecombine pgprot_writecombine
18431 extern pgprot_t pgprot_writecombine(pgprot_t prot);
18432diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
18433index 8f327184..368fb29 100644
18434--- a/arch/x86/include/asm/preempt.h
18435+++ b/arch/x86/include/asm/preempt.h
18436@@ -84,7 +84,7 @@ static __always_inline void __preempt_count_sub(int val)
18437 */
18438 static __always_inline bool __preempt_count_dec_and_test(void)
18439 {
18440- GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
18441+ GEN_UNARY_RMWcc("decl", "incl", __preempt_count, __percpu_arg(0), "e");
18442 }
18443
18444 /*
18445diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
18446index ec1c935..5cc6023 100644
18447--- a/arch/x86/include/asm/processor.h
18448+++ b/arch/x86/include/asm/processor.h
18449@@ -127,7 +127,7 @@ struct cpuinfo_x86 {
18450 /* Index into per_cpu list: */
18451 u16 cpu_index;
18452 u32 microcode;
18453-};
18454+} __randomize_layout;
18455
18456 #define X86_VENDOR_INTEL 0
18457 #define X86_VENDOR_CYRIX 1
18458@@ -198,9 +198,21 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
18459 : "memory");
18460 }
18461
18462+/* invpcid (%rdx),%rax */
18463+#define __ASM_INVPCID ".byte 0x66,0x0f,0x38,0x82,0x02"
18464+
18465+#define INVPCID_SINGLE_ADDRESS 0UL
18466+#define INVPCID_SINGLE_CONTEXT 1UL
18467+#define INVPCID_ALL_GLOBAL 2UL
18468+#define INVPCID_ALL_NONGLOBAL 3UL
18469+
18470+#define PCID_KERNEL 0UL
18471+#define PCID_USER 1UL
18472+#define PCID_NOFLUSH (1UL << 63)
18473+
18474 static inline void load_cr3(pgd_t *pgdir)
18475 {
18476- write_cr3(__pa(pgdir));
18477+ write_cr3(__pa(pgdir) | PCID_KERNEL);
18478 }
18479
18480 #ifdef CONFIG_X86_32
18481@@ -282,7 +294,7 @@ struct tss_struct {
18482
18483 } ____cacheline_aligned;
18484
18485-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
18486+extern struct tss_struct init_tss[NR_CPUS];
18487
18488 /*
18489 * Save the original ist values for checking stack pointers during debugging
18490@@ -479,6 +491,7 @@ struct thread_struct {
18491 unsigned short ds;
18492 unsigned short fsindex;
18493 unsigned short gsindex;
18494+ unsigned short ss;
18495 #endif
18496 #ifdef CONFIG_X86_32
18497 unsigned long ip;
18498@@ -805,11 +818,18 @@ static inline void spin_lock_prefetch(const void *x)
18499 */
18500 #define TASK_SIZE PAGE_OFFSET
18501 #define TASK_SIZE_MAX TASK_SIZE
18502+
18503+#ifdef CONFIG_PAX_SEGMEXEC
18504+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
18505+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
18506+#else
18507 #define STACK_TOP TASK_SIZE
18508-#define STACK_TOP_MAX STACK_TOP
18509+#endif
18510+
18511+#define STACK_TOP_MAX TASK_SIZE
18512
18513 #define INIT_THREAD { \
18514- .sp0 = sizeof(init_stack) + (long)&init_stack, \
18515+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18516 .vm86_info = NULL, \
18517 .sysenter_cs = __KERNEL_CS, \
18518 .io_bitmap_ptr = NULL, \
18519@@ -823,7 +843,7 @@ static inline void spin_lock_prefetch(const void *x)
18520 */
18521 #define INIT_TSS { \
18522 .x86_tss = { \
18523- .sp0 = sizeof(init_stack) + (long)&init_stack, \
18524+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18525 .ss0 = __KERNEL_DS, \
18526 .ss1 = __KERNEL_CS, \
18527 .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
18528@@ -834,11 +854,7 @@ static inline void spin_lock_prefetch(const void *x)
18529 extern unsigned long thread_saved_pc(struct task_struct *tsk);
18530
18531 #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
18532-#define KSTK_TOP(info) \
18533-({ \
18534- unsigned long *__ptr = (unsigned long *)(info); \
18535- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
18536-})
18537+#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0)
18538
18539 /*
18540 * The below -8 is to reserve 8 bytes on top of the ring0 stack.
18541@@ -853,7 +869,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18542 #define task_pt_regs(task) \
18543 ({ \
18544 struct pt_regs *__regs__; \
18545- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
18546+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \
18547 __regs__ - 1; \
18548 })
18549
18550@@ -869,13 +885,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18551 * particular problem by preventing anything from being mapped
18552 * at the maximum canonical address.
18553 */
18554-#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
18555+#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
18556
18557 /* This decides where the kernel will search for a free chunk of vm
18558 * space during mmap's.
18559 */
18560 #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
18561- 0xc0000000 : 0xFFFFe000)
18562+ 0xc0000000 : 0xFFFFf000)
18563
18564 #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
18565 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
18566@@ -886,11 +902,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18567 #define STACK_TOP_MAX TASK_SIZE_MAX
18568
18569 #define INIT_THREAD { \
18570- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18571+ .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18572 }
18573
18574 #define INIT_TSS { \
18575- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18576+ .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18577 }
18578
18579 /*
18580@@ -918,6 +934,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
18581 */
18582 #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
18583
18584+#ifdef CONFIG_PAX_SEGMEXEC
18585+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
18586+#endif
18587+
18588 #define KSTK_EIP(task) (task_pt_regs(task)->ip)
18589
18590 /* Get/set a process' ability to use the timestamp counter instruction */
18591@@ -962,7 +982,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
18592 return 0;
18593 }
18594
18595-extern unsigned long arch_align_stack(unsigned long sp);
18596+#define arch_align_stack(x) ((x) & ~0xfUL)
18597 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
18598
18599 void default_idle(void);
18600@@ -972,6 +992,6 @@ bool xen_set_default_idle(void);
18601 #define xen_set_default_idle 0
18602 #endif
18603
18604-void stop_this_cpu(void *dummy);
18605+void stop_this_cpu(void *dummy) __noreturn;
18606 void df_debug(struct pt_regs *regs, long error_code);
18607 #endif /* _ASM_X86_PROCESSOR_H */
18608diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
18609index 86fc2bb..bd5049a 100644
18610--- a/arch/x86/include/asm/ptrace.h
18611+++ b/arch/x86/include/asm/ptrace.h
18612@@ -89,28 +89,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
18613 }
18614
18615 /*
18616- * user_mode_vm(regs) determines whether a register set came from user mode.
18617+ * user_mode(regs) determines whether a register set came from user mode.
18618 * This is true if V8086 mode was enabled OR if the register set was from
18619 * protected mode with RPL-3 CS value. This tricky test checks that with
18620 * one comparison. Many places in the kernel can bypass this full check
18621- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
18622+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
18623+ * be used.
18624 */
18625-static inline int user_mode(struct pt_regs *regs)
18626+static inline int user_mode_novm(struct pt_regs *regs)
18627 {
18628 #ifdef CONFIG_X86_32
18629 return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
18630 #else
18631- return !!(regs->cs & 3);
18632+ return !!(regs->cs & SEGMENT_RPL_MASK);
18633 #endif
18634 }
18635
18636-static inline int user_mode_vm(struct pt_regs *regs)
18637+static inline int user_mode(struct pt_regs *regs)
18638 {
18639 #ifdef CONFIG_X86_32
18640 return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
18641 USER_RPL;
18642 #else
18643- return user_mode(regs);
18644+ return user_mode_novm(regs);
18645 #endif
18646 }
18647
18648@@ -126,15 +127,16 @@ static inline int v8086_mode(struct pt_regs *regs)
18649 #ifdef CONFIG_X86_64
18650 static inline bool user_64bit_mode(struct pt_regs *regs)
18651 {
18652+ unsigned long cs = regs->cs & 0xffff;
18653 #ifndef CONFIG_PARAVIRT
18654 /*
18655 * On non-paravirt systems, this is the only long mode CPL 3
18656 * selector. We do not allow long mode selectors in the LDT.
18657 */
18658- return regs->cs == __USER_CS;
18659+ return cs == __USER_CS;
18660 #else
18661 /* Headers are too twisted for this to go in paravirt.h. */
18662- return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
18663+ return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
18664 #endif
18665 }
18666
18667@@ -185,9 +187,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
18668 * Traps from the kernel do not save sp and ss.
18669 * Use the helper function to retrieve sp.
18670 */
18671- if (offset == offsetof(struct pt_regs, sp) &&
18672- regs->cs == __KERNEL_CS)
18673- return kernel_stack_pointer(regs);
18674+ if (offset == offsetof(struct pt_regs, sp)) {
18675+ unsigned long cs = regs->cs & 0xffff;
18676+ if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
18677+ return kernel_stack_pointer(regs);
18678+ }
18679 #endif
18680 return *(unsigned long *)((unsigned long)regs + offset);
18681 }
18682diff --git a/arch/x86/include/asm/qrwlock.h b/arch/x86/include/asm/qrwlock.h
18683index ae0e241..e80b10b 100644
18684--- a/arch/x86/include/asm/qrwlock.h
18685+++ b/arch/x86/include/asm/qrwlock.h
18686@@ -7,8 +7,8 @@
18687 #define queue_write_unlock queue_write_unlock
18688 static inline void queue_write_unlock(struct qrwlock *lock)
18689 {
18690- barrier();
18691- ACCESS_ONCE(*(u8 *)&lock->cnts) = 0;
18692+ barrier();
18693+ ACCESS_ONCE_RW(*(u8 *)&lock->cnts) = 0;
18694 }
18695 #endif
18696
18697diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
18698index 9c6b890..5305f53 100644
18699--- a/arch/x86/include/asm/realmode.h
18700+++ b/arch/x86/include/asm/realmode.h
18701@@ -22,16 +22,14 @@ struct real_mode_header {
18702 #endif
18703 /* APM/BIOS reboot */
18704 u32 machine_real_restart_asm;
18705-#ifdef CONFIG_X86_64
18706 u32 machine_real_restart_seg;
18707-#endif
18708 };
18709
18710 /* This must match data at trampoline_32/64.S */
18711 struct trampoline_header {
18712 #ifdef CONFIG_X86_32
18713 u32 start;
18714- u16 gdt_pad;
18715+ u16 boot_cs;
18716 u16 gdt_limit;
18717 u32 gdt_base;
18718 #else
18719diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
18720index a82c4f1..ac45053 100644
18721--- a/arch/x86/include/asm/reboot.h
18722+++ b/arch/x86/include/asm/reboot.h
18723@@ -6,13 +6,13 @@
18724 struct pt_regs;
18725
18726 struct machine_ops {
18727- void (*restart)(char *cmd);
18728- void (*halt)(void);
18729- void (*power_off)(void);
18730+ void (* __noreturn restart)(char *cmd);
18731+ void (* __noreturn halt)(void);
18732+ void (* __noreturn power_off)(void);
18733 void (*shutdown)(void);
18734 void (*crash_shutdown)(struct pt_regs *);
18735- void (*emergency_restart)(void);
18736-};
18737+ void (* __noreturn emergency_restart)(void);
18738+} __no_const;
18739
18740 extern struct machine_ops machine_ops;
18741
18742diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
18743index 8f7866a..e442f20 100644
18744--- a/arch/x86/include/asm/rmwcc.h
18745+++ b/arch/x86/include/asm/rmwcc.h
18746@@ -3,7 +3,34 @@
18747
18748 #ifdef CC_HAVE_ASM_GOTO
18749
18750-#define __GEN_RMWcc(fullop, var, cc, ...) \
18751+#ifdef CONFIG_PAX_REFCOUNT
18752+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18753+do { \
18754+ asm_volatile_goto (fullop \
18755+ ";jno 0f\n" \
18756+ fullantiop \
18757+ ";int $4\n0:\n" \
18758+ _ASM_EXTABLE(0b, 0b) \
18759+ ";j" cc " %l[cc_label]" \
18760+ : : "m" (var), ## __VA_ARGS__ \
18761+ : "memory" : cc_label); \
18762+ return 0; \
18763+cc_label: \
18764+ return 1; \
18765+} while (0)
18766+#else
18767+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18768+do { \
18769+ asm_volatile_goto (fullop ";j" cc " %l[cc_label]" \
18770+ : : "m" (var), ## __VA_ARGS__ \
18771+ : "memory" : cc_label); \
18772+ return 0; \
18773+cc_label: \
18774+ return 1; \
18775+} while (0)
18776+#endif
18777+
18778+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18779 do { \
18780 asm_volatile_goto (fullop "; j" cc " %l[cc_label]" \
18781 : : "m" (var), ## __VA_ARGS__ \
18782@@ -13,15 +40,46 @@ cc_label: \
18783 return 1; \
18784 } while (0)
18785
18786-#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18787- __GEN_RMWcc(op " " arg0, var, cc)
18788+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18789+ __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18790
18791-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18792- __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
18793+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18794+ __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18795+
18796+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18797+ __GEN_RMWcc(op " %1, " arg0, antiop " %1, " arg0, var, cc, vcon (val))
18798+
18799+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18800+ __GEN_RMWcc_unchecked(op " %1, " arg0, var, cc, vcon (val))
18801
18802 #else /* !CC_HAVE_ASM_GOTO */
18803
18804-#define __GEN_RMWcc(fullop, var, cc, ...) \
18805+#ifdef CONFIG_PAX_REFCOUNT
18806+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18807+do { \
18808+ char c; \
18809+ asm volatile (fullop \
18810+ ";jno 0f\n" \
18811+ fullantiop \
18812+ ";int $4\n0:\n" \
18813+ _ASM_EXTABLE(0b, 0b) \
18814+ "; set" cc " %1" \
18815+ : "+m" (var), "=qm" (c) \
18816+ : __VA_ARGS__ : "memory"); \
18817+ return c != 0; \
18818+} while (0)
18819+#else
18820+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18821+do { \
18822+ char c; \
18823+ asm volatile (fullop "; set" cc " %1" \
18824+ : "+m" (var), "=qm" (c) \
18825+ : __VA_ARGS__ : "memory"); \
18826+ return c != 0; \
18827+} while (0)
18828+#endif
18829+
18830+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18831 do { \
18832 char c; \
18833 asm volatile (fullop "; set" cc " %1" \
18834@@ -30,11 +88,17 @@ do { \
18835 return c != 0; \
18836 } while (0)
18837
18838-#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18839- __GEN_RMWcc(op " " arg0, var, cc)
18840+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18841+ __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18842+
18843+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18844+ __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18845+
18846+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18847+ __GEN_RMWcc(op " %2, " arg0, antiop " %2, " arg0, var, cc, vcon (val))
18848
18849-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18850- __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
18851+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18852+ __GEN_RMWcc_unchecked(op " %2, " arg0, var, cc, vcon (val))
18853
18854 #endif /* CC_HAVE_ASM_GOTO */
18855
18856diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
18857index cad82c9..2e5c5c1 100644
18858--- a/arch/x86/include/asm/rwsem.h
18859+++ b/arch/x86/include/asm/rwsem.h
18860@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
18861 {
18862 asm volatile("# beginning down_read\n\t"
18863 LOCK_PREFIX _ASM_INC "(%1)\n\t"
18864+
18865+#ifdef CONFIG_PAX_REFCOUNT
18866+ "jno 0f\n"
18867+ LOCK_PREFIX _ASM_DEC "(%1)\n"
18868+ "int $4\n0:\n"
18869+ _ASM_EXTABLE(0b, 0b)
18870+#endif
18871+
18872 /* adds 0x00000001 */
18873 " jns 1f\n"
18874 " call call_rwsem_down_read_failed\n"
18875@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
18876 "1:\n\t"
18877 " mov %1,%2\n\t"
18878 " add %3,%2\n\t"
18879+
18880+#ifdef CONFIG_PAX_REFCOUNT
18881+ "jno 0f\n"
18882+ "sub %3,%2\n"
18883+ "int $4\n0:\n"
18884+ _ASM_EXTABLE(0b, 0b)
18885+#endif
18886+
18887 " jle 2f\n\t"
18888 LOCK_PREFIX " cmpxchg %2,%0\n\t"
18889 " jnz 1b\n\t"
18890@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
18891 long tmp;
18892 asm volatile("# beginning down_write\n\t"
18893 LOCK_PREFIX " xadd %1,(%2)\n\t"
18894+
18895+#ifdef CONFIG_PAX_REFCOUNT
18896+ "jno 0f\n"
18897+ "mov %1,(%2)\n"
18898+ "int $4\n0:\n"
18899+ _ASM_EXTABLE(0b, 0b)
18900+#endif
18901+
18902 /* adds 0xffff0001, returns the old value */
18903 " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
18904 /* was the active mask 0 before? */
18905@@ -155,6 +179,14 @@ static inline void __up_read(struct rw_semaphore *sem)
18906 long tmp;
18907 asm volatile("# beginning __up_read\n\t"
18908 LOCK_PREFIX " xadd %1,(%2)\n\t"
18909+
18910+#ifdef CONFIG_PAX_REFCOUNT
18911+ "jno 0f\n"
18912+ "mov %1,(%2)\n"
18913+ "int $4\n0:\n"
18914+ _ASM_EXTABLE(0b, 0b)
18915+#endif
18916+
18917 /* subtracts 1, returns the old value */
18918 " jns 1f\n\t"
18919 " call call_rwsem_wake\n" /* expects old value in %edx */
18920@@ -173,6 +205,14 @@ static inline void __up_write(struct rw_semaphore *sem)
18921 long tmp;
18922 asm volatile("# beginning __up_write\n\t"
18923 LOCK_PREFIX " xadd %1,(%2)\n\t"
18924+
18925+#ifdef CONFIG_PAX_REFCOUNT
18926+ "jno 0f\n"
18927+ "mov %1,(%2)\n"
18928+ "int $4\n0:\n"
18929+ _ASM_EXTABLE(0b, 0b)
18930+#endif
18931+
18932 /* subtracts 0xffff0001, returns the old value */
18933 " jns 1f\n\t"
18934 " call call_rwsem_wake\n" /* expects old value in %edx */
18935@@ -190,6 +230,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18936 {
18937 asm volatile("# beginning __downgrade_write\n\t"
18938 LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
18939+
18940+#ifdef CONFIG_PAX_REFCOUNT
18941+ "jno 0f\n"
18942+ LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
18943+ "int $4\n0:\n"
18944+ _ASM_EXTABLE(0b, 0b)
18945+#endif
18946+
18947 /*
18948 * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
18949 * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
18950@@ -208,7 +256,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18951 */
18952 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18953 {
18954- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
18955+ asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
18956+
18957+#ifdef CONFIG_PAX_REFCOUNT
18958+ "jno 0f\n"
18959+ LOCK_PREFIX _ASM_SUB "%1,%0\n"
18960+ "int $4\n0:\n"
18961+ _ASM_EXTABLE(0b, 0b)
18962+#endif
18963+
18964 : "+m" (sem->count)
18965 : "er" (delta));
18966 }
18967@@ -218,7 +274,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18968 */
18969 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
18970 {
18971- return delta + xadd(&sem->count, delta);
18972+ return delta + xadd_check_overflow(&sem->count, delta);
18973 }
18974
18975 #endif /* __KERNEL__ */
18976diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
18977index db257a5..b91bc77 100644
18978--- a/arch/x86/include/asm/segment.h
18979+++ b/arch/x86/include/asm/segment.h
18980@@ -73,10 +73,15 @@
18981 * 26 - ESPFIX small SS
18982 * 27 - per-cpu [ offset to per-cpu data area ]
18983 * 28 - stack_canary-20 [ for stack protector ]
18984- * 29 - unused
18985- * 30 - unused
18986+ * 29 - PCI BIOS CS
18987+ * 30 - PCI BIOS DS
18988 * 31 - TSS for double fault handler
18989 */
18990+#define GDT_ENTRY_KERNEXEC_EFI_CS (1)
18991+#define GDT_ENTRY_KERNEXEC_EFI_DS (2)
18992+#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8)
18993+#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8)
18994+
18995 #define GDT_ENTRY_TLS_MIN 6
18996 #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
18997
18998@@ -88,6 +93,8 @@
18999
19000 #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0)
19001
19002+#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4)
19003+
19004 #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1)
19005
19006 #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4)
19007@@ -113,6 +120,12 @@
19008 #define __KERNEL_STACK_CANARY 0
19009 #endif
19010
19011+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17)
19012+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
19013+
19014+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18)
19015+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
19016+
19017 #define GDT_ENTRY_DOUBLEFAULT_TSS 31
19018
19019 /*
19020@@ -140,7 +153,7 @@
19021 */
19022
19023 /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
19024-#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
19025+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
19026
19027
19028 #else
19029@@ -164,6 +177,8 @@
19030 #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
19031 #define __USER32_DS __USER_DS
19032
19033+#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
19034+
19035 #define GDT_ENTRY_TSS 8 /* needs two entries */
19036 #define GDT_ENTRY_LDT 10 /* needs two entries */
19037 #define GDT_ENTRY_TLS_MIN 12
19038@@ -172,6 +187,8 @@
19039 #define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */
19040 #define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3)
19041
19042+#define GDT_ENTRY_UDEREF_KERNEL_DS 16
19043+
19044 /* TLS indexes for 64bit - hardcoded in arch_prctl */
19045 #define FS_TLS 0
19046 #define GS_TLS 1
19047@@ -179,12 +196,14 @@
19048 #define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
19049 #define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
19050
19051-#define GDT_ENTRIES 16
19052+#define GDT_ENTRIES 17
19053
19054 #endif
19055
19056 #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
19057+#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
19058 #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
19059+#define __UDEREF_KERNEL_DS (GDT_ENTRY_UDEREF_KERNEL_DS*8)
19060 #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3)
19061 #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3)
19062 #ifndef CONFIG_PARAVIRT
19063@@ -256,7 +275,7 @@ static inline unsigned long get_limit(unsigned long segment)
19064 {
19065 unsigned long __limit;
19066 asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
19067- return __limit + 1;
19068+ return __limit;
19069 }
19070
19071 #endif /* !__ASSEMBLY__ */
19072diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
19073index 8d3120f..352b440 100644
19074--- a/arch/x86/include/asm/smap.h
19075+++ b/arch/x86/include/asm/smap.h
19076@@ -25,11 +25,40 @@
19077
19078 #include <asm/alternative-asm.h>
19079
19080+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19081+#define ASM_PAX_OPEN_USERLAND \
19082+ 661: jmp 663f; \
19083+ .pushsection .altinstr_replacement, "a" ; \
19084+ 662: pushq %rax; nop; \
19085+ .popsection ; \
19086+ .pushsection .altinstructions, "a" ; \
19087+ altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
19088+ .popsection ; \
19089+ call __pax_open_userland; \
19090+ popq %rax; \
19091+ 663:
19092+
19093+#define ASM_PAX_CLOSE_USERLAND \
19094+ 661: jmp 663f; \
19095+ .pushsection .altinstr_replacement, "a" ; \
19096+ 662: pushq %rax; nop; \
19097+ .popsection; \
19098+ .pushsection .altinstructions, "a" ; \
19099+ altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
19100+ .popsection; \
19101+ call __pax_close_userland; \
19102+ popq %rax; \
19103+ 663:
19104+#else
19105+#define ASM_PAX_OPEN_USERLAND
19106+#define ASM_PAX_CLOSE_USERLAND
19107+#endif
19108+
19109 #ifdef CONFIG_X86_SMAP
19110
19111 #define ASM_CLAC \
19112 661: ASM_NOP3 ; \
19113- .pushsection .altinstr_replacement, "ax" ; \
19114+ .pushsection .altinstr_replacement, "a" ; \
19115 662: __ASM_CLAC ; \
19116 .popsection ; \
19117 .pushsection .altinstructions, "a" ; \
19118@@ -38,7 +67,7 @@
19119
19120 #define ASM_STAC \
19121 661: ASM_NOP3 ; \
19122- .pushsection .altinstr_replacement, "ax" ; \
19123+ .pushsection .altinstr_replacement, "a" ; \
19124 662: __ASM_STAC ; \
19125 .popsection ; \
19126 .pushsection .altinstructions, "a" ; \
19127@@ -56,6 +85,37 @@
19128
19129 #include <asm/alternative.h>
19130
19131+#define __HAVE_ARCH_PAX_OPEN_USERLAND
19132+#define __HAVE_ARCH_PAX_CLOSE_USERLAND
19133+
19134+extern void __pax_open_userland(void);
19135+static __always_inline unsigned long pax_open_userland(void)
19136+{
19137+
19138+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19139+ asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[open]", X86_FEATURE_STRONGUDEREF)
19140+ :
19141+ : [open] "i" (__pax_open_userland)
19142+ : "memory", "rax");
19143+#endif
19144+
19145+ return 0;
19146+}
19147+
19148+extern void __pax_close_userland(void);
19149+static __always_inline unsigned long pax_close_userland(void)
19150+{
19151+
19152+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19153+ asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[close]", X86_FEATURE_STRONGUDEREF)
19154+ :
19155+ : [close] "i" (__pax_close_userland)
19156+ : "memory", "rax");
19157+#endif
19158+
19159+ return 0;
19160+}
19161+
19162 #ifdef CONFIG_X86_SMAP
19163
19164 static __always_inline void clac(void)
19165diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
19166index 8cd1cc3..827e09e 100644
19167--- a/arch/x86/include/asm/smp.h
19168+++ b/arch/x86/include/asm/smp.h
19169@@ -35,7 +35,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
19170 /* cpus sharing the last level cache: */
19171 DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
19172 DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
19173-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
19174+DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
19175
19176 static inline struct cpumask *cpu_sibling_mask(int cpu)
19177 {
19178@@ -78,7 +78,7 @@ struct smp_ops {
19179
19180 void (*send_call_func_ipi)(const struct cpumask *mask);
19181 void (*send_call_func_single_ipi)(int cpu);
19182-};
19183+} __no_const;
19184
19185 /* Globals due to paravirt */
19186 extern void set_cpu_sibling_map(int cpu);
19187@@ -191,14 +191,8 @@ extern unsigned disabled_cpus;
19188 extern int safe_smp_processor_id(void);
19189
19190 #elif defined(CONFIG_X86_64_SMP)
19191-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
19192-
19193-#define stack_smp_processor_id() \
19194-({ \
19195- struct thread_info *ti; \
19196- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
19197- ti->cpu; \
19198-})
19199+#define raw_smp_processor_id() (this_cpu_read(cpu_number))
19200+#define stack_smp_processor_id() raw_smp_processor_id()
19201 #define safe_smp_processor_id() smp_processor_id()
19202
19203 #endif
19204diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
19205index 6a99859..03cb807 100644
19206--- a/arch/x86/include/asm/stackprotector.h
19207+++ b/arch/x86/include/asm/stackprotector.h
19208@@ -47,7 +47,7 @@
19209 * head_32 for boot CPU and setup_per_cpu_areas() for others.
19210 */
19211 #define GDT_STACK_CANARY_INIT \
19212- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
19213+ [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
19214
19215 /*
19216 * Initialize the stackprotector canary value.
19217@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
19218
19219 static inline void load_stack_canary_segment(void)
19220 {
19221-#ifdef CONFIG_X86_32
19222+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
19223 asm volatile ("mov %0, %%gs" : : "r" (0));
19224 #endif
19225 }
19226diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
19227index 70bbe39..4ae2bd4 100644
19228--- a/arch/x86/include/asm/stacktrace.h
19229+++ b/arch/x86/include/asm/stacktrace.h
19230@@ -11,28 +11,20 @@
19231
19232 extern int kstack_depth_to_print;
19233
19234-struct thread_info;
19235+struct task_struct;
19236 struct stacktrace_ops;
19237
19238-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
19239- unsigned long *stack,
19240- unsigned long bp,
19241- const struct stacktrace_ops *ops,
19242- void *data,
19243- unsigned long *end,
19244- int *graph);
19245+typedef unsigned long walk_stack_t(struct task_struct *task,
19246+ void *stack_start,
19247+ unsigned long *stack,
19248+ unsigned long bp,
19249+ const struct stacktrace_ops *ops,
19250+ void *data,
19251+ unsigned long *end,
19252+ int *graph);
19253
19254-extern unsigned long
19255-print_context_stack(struct thread_info *tinfo,
19256- unsigned long *stack, unsigned long bp,
19257- const struct stacktrace_ops *ops, void *data,
19258- unsigned long *end, int *graph);
19259-
19260-extern unsigned long
19261-print_context_stack_bp(struct thread_info *tinfo,
19262- unsigned long *stack, unsigned long bp,
19263- const struct stacktrace_ops *ops, void *data,
19264- unsigned long *end, int *graph);
19265+extern walk_stack_t print_context_stack;
19266+extern walk_stack_t print_context_stack_bp;
19267
19268 /* Generic stack tracer with callbacks */
19269
19270@@ -40,7 +32,7 @@ struct stacktrace_ops {
19271 void (*address)(void *data, unsigned long address, int reliable);
19272 /* On negative return stop dumping */
19273 int (*stack)(void *data, char *name);
19274- walk_stack_t walk_stack;
19275+ walk_stack_t *walk_stack;
19276 };
19277
19278 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
19279diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
19280index 751bf4b..a1278b5 100644
19281--- a/arch/x86/include/asm/switch_to.h
19282+++ b/arch/x86/include/asm/switch_to.h
19283@@ -112,7 +112,7 @@ do { \
19284 "call __switch_to\n\t" \
19285 "movq "__percpu_arg([current_task])",%%rsi\n\t" \
19286 __switch_canary \
19287- "movq %P[thread_info](%%rsi),%%r8\n\t" \
19288+ "movq "__percpu_arg([thread_info])",%%r8\n\t" \
19289 "movq %%rax,%%rdi\n\t" \
19290 "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \
19291 "jnz ret_from_fork\n\t" \
19292@@ -123,7 +123,7 @@ do { \
19293 [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
19294 [ti_flags] "i" (offsetof(struct thread_info, flags)), \
19295 [_tif_fork] "i" (_TIF_FORK), \
19296- [thread_info] "i" (offsetof(struct task_struct, stack)), \
19297+ [thread_info] "m" (current_tinfo), \
19298 [current_task] "m" (current_task) \
19299 __switch_canary_iparam \
19300 : "memory", "cc" __EXTRA_CLOBBER)
19301diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
19302index 1d4e4f2..506db18 100644
19303--- a/arch/x86/include/asm/thread_info.h
19304+++ b/arch/x86/include/asm/thread_info.h
19305@@ -24,7 +24,6 @@ struct exec_domain;
19306 #include <linux/atomic.h>
19307
19308 struct thread_info {
19309- struct task_struct *task; /* main task structure */
19310 struct exec_domain *exec_domain; /* execution domain */
19311 __u32 flags; /* low level flags */
19312 __u32 status; /* thread synchronous flags */
19313@@ -32,13 +31,13 @@ struct thread_info {
19314 int saved_preempt_count;
19315 mm_segment_t addr_limit;
19316 void __user *sysenter_return;
19317+ unsigned long lowest_stack;
19318 unsigned int sig_on_uaccess_error:1;
19319 unsigned int uaccess_err:1; /* uaccess failed */
19320 };
19321
19322-#define INIT_THREAD_INFO(tsk) \
19323+#define INIT_THREAD_INFO \
19324 { \
19325- .task = &tsk, \
19326 .exec_domain = &default_exec_domain, \
19327 .flags = 0, \
19328 .cpu = 0, \
19329@@ -46,7 +45,7 @@ struct thread_info {
19330 .addr_limit = KERNEL_DS, \
19331 }
19332
19333-#define init_thread_info (init_thread_union.thread_info)
19334+#define init_thread_info (init_thread_union.stack)
19335 #define init_stack (init_thread_union.stack)
19336
19337 #else /* !__ASSEMBLY__ */
19338@@ -86,6 +85,7 @@ struct thread_info {
19339 #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
19340 #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
19341 #define TIF_X32 30 /* 32-bit native x86-64 binary */
19342+#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */
19343
19344 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
19345 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
19346@@ -109,17 +109,18 @@ struct thread_info {
19347 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
19348 #define _TIF_ADDR32 (1 << TIF_ADDR32)
19349 #define _TIF_X32 (1 << TIF_X32)
19350+#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
19351
19352 /* work to do in syscall_trace_enter() */
19353 #define _TIF_WORK_SYSCALL_ENTRY \
19354 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \
19355 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \
19356- _TIF_NOHZ)
19357+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
19358
19359 /* work to do in syscall_trace_leave() */
19360 #define _TIF_WORK_SYSCALL_EXIT \
19361 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \
19362- _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
19363+ _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
19364
19365 /* work to do on interrupt/exception return */
19366 #define _TIF_WORK_MASK \
19367@@ -130,7 +131,7 @@ struct thread_info {
19368 /* work to do on any return to user space */
19369 #define _TIF_ALLWORK_MASK \
19370 ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \
19371- _TIF_NOHZ)
19372+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
19373
19374 /* Only used for 64 bit */
19375 #define _TIF_DO_NOTIFY_MASK \
19376@@ -145,7 +146,6 @@ struct thread_info {
19377 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
19378
19379 #define STACK_WARN (THREAD_SIZE/8)
19380-#define KERNEL_STACK_OFFSET (5*(BITS_PER_LONG/8))
19381
19382 /*
19383 * macros/functions for gaining access to the thread information structure
19384@@ -156,12 +156,11 @@ struct thread_info {
19385
19386 DECLARE_PER_CPU(unsigned long, kernel_stack);
19387
19388+DECLARE_PER_CPU(struct thread_info *, current_tinfo);
19389+
19390 static inline struct thread_info *current_thread_info(void)
19391 {
19392- struct thread_info *ti;
19393- ti = (void *)(this_cpu_read_stable(kernel_stack) +
19394- KERNEL_STACK_OFFSET - THREAD_SIZE);
19395- return ti;
19396+ return this_cpu_read_stable(current_tinfo);
19397 }
19398
19399 static inline unsigned long current_stack_pointer(void)
19400@@ -179,14 +178,7 @@ static inline unsigned long current_stack_pointer(void)
19401
19402 /* how to get the thread information struct from ASM */
19403 #define GET_THREAD_INFO(reg) \
19404- _ASM_MOV PER_CPU_VAR(kernel_stack),reg ; \
19405- _ASM_SUB $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg ;
19406-
19407-/*
19408- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
19409- * a certain register (to be used in assembler memory operands).
19410- */
19411-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
19412+ _ASM_MOV PER_CPU_VAR(current_tinfo),reg ;
19413
19414 #endif
19415
19416@@ -242,5 +234,12 @@ static inline bool is_ia32_task(void)
19417 extern void arch_task_cache_init(void);
19418 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
19419 extern void arch_release_task_struct(struct task_struct *tsk);
19420+
19421+#define __HAVE_THREAD_FUNCTIONS
19422+#define task_thread_info(task) (&(task)->tinfo)
19423+#define task_stack_page(task) ((task)->stack)
19424+#define setup_thread_stack(p, org) do {} while (0)
19425+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
19426+
19427 #endif
19428 #endif /* _ASM_X86_THREAD_INFO_H */
19429diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
19430index cd79194..e7a9491 100644
19431--- a/arch/x86/include/asm/tlbflush.h
19432+++ b/arch/x86/include/asm/tlbflush.h
19433@@ -86,18 +86,44 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask)
19434
19435 static inline void __native_flush_tlb(void)
19436 {
19437+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19438+ u64 descriptor[2];
19439+
19440+ descriptor[0] = PCID_KERNEL;
19441+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_NONGLOBAL) : "memory");
19442+ return;
19443+ }
19444+
19445+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19446+ if (static_cpu_has(X86_FEATURE_PCID)) {
19447+ unsigned int cpu = raw_get_cpu();
19448+
19449+ native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
19450+ native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
19451+ raw_put_cpu_no_resched();
19452+ return;
19453+ }
19454+#endif
19455+
19456 native_write_cr3(native_read_cr3());
19457 }
19458
19459 static inline void __native_flush_tlb_global_irq_disabled(void)
19460 {
19461- unsigned long cr4;
19462+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19463+ u64 descriptor[2];
19464
19465- cr4 = this_cpu_read(cpu_tlbstate.cr4);
19466- /* clear PGE */
19467- native_write_cr4(cr4 & ~X86_CR4_PGE);
19468- /* write old PGE again and flush TLBs */
19469- native_write_cr4(cr4);
19470+ descriptor[0] = PCID_KERNEL;
19471+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_GLOBAL) : "memory");
19472+ } else {
19473+ unsigned long cr4;
19474+
19475+ cr4 = this_cpu_read(cpu_tlbstate.cr4);
19476+ /* clear PGE */
19477+ native_write_cr4(cr4 & ~X86_CR4_PGE);
19478+ /* write old PGE again and flush TLBs */
19479+ native_write_cr4(cr4);
19480+ }
19481 }
19482
19483 static inline void __native_flush_tlb_global(void)
19484@@ -118,6 +144,41 @@ static inline void __native_flush_tlb_global(void)
19485
19486 static inline void __native_flush_tlb_single(unsigned long addr)
19487 {
19488+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19489+ u64 descriptor[2];
19490+
19491+ descriptor[0] = PCID_KERNEL;
19492+ descriptor[1] = addr;
19493+
19494+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19495+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) || addr >= TASK_SIZE_MAX) {
19496+ if (addr < TASK_SIZE_MAX)
19497+ descriptor[1] += pax_user_shadow_base;
19498+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19499+ }
19500+
19501+ descriptor[0] = PCID_USER;
19502+ descriptor[1] = addr;
19503+#endif
19504+
19505+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19506+ return;
19507+ }
19508+
19509+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19510+ if (static_cpu_has(X86_FEATURE_PCID)) {
19511+ unsigned int cpu = raw_get_cpu();
19512+
19513+ native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
19514+ asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19515+ native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
19516+ raw_put_cpu_no_resched();
19517+
19518+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) && addr < TASK_SIZE_MAX)
19519+ addr += pax_user_shadow_base;
19520+ }
19521+#endif
19522+
19523 asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19524 }
19525
19526diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
19527index ace9dec..3f9e253 100644
19528--- a/arch/x86/include/asm/uaccess.h
19529+++ b/arch/x86/include/asm/uaccess.h
19530@@ -7,6 +7,7 @@
19531 #include <linux/compiler.h>
19532 #include <linux/thread_info.h>
19533 #include <linux/string.h>
19534+#include <linux/spinlock.h>
19535 #include <asm/asm.h>
19536 #include <asm/page.h>
19537 #include <asm/smap.h>
19538@@ -29,7 +30,12 @@
19539
19540 #define get_ds() (KERNEL_DS)
19541 #define get_fs() (current_thread_info()->addr_limit)
19542+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19543+void __set_fs(mm_segment_t x);
19544+void set_fs(mm_segment_t x);
19545+#else
19546 #define set_fs(x) (current_thread_info()->addr_limit = (x))
19547+#endif
19548
19549 #define segment_eq(a, b) ((a).seg == (b).seg)
19550
19551@@ -85,8 +91,36 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
19552 * checks that the pointer is in the user space range - after calling
19553 * this function, memory access functions may still return -EFAULT.
19554 */
19555-#define access_ok(type, addr, size) \
19556- likely(!__range_not_ok(addr, size, user_addr_max()))
19557+extern int _cond_resched(void);
19558+#define access_ok_noprefault(type, addr, size) (likely(!__range_not_ok(addr, size, user_addr_max())))
19559+#define access_ok(type, addr, size) \
19560+({ \
19561+ unsigned long __size = size; \
19562+ unsigned long __addr = (unsigned long)addr; \
19563+ bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
19564+ if (__ret_ao && __size) { \
19565+ unsigned long __addr_ao = __addr & PAGE_MASK; \
19566+ unsigned long __end_ao = __addr + __size - 1; \
19567+ if (unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \
19568+ while (__addr_ao <= __end_ao) { \
19569+ char __c_ao; \
19570+ __addr_ao += PAGE_SIZE; \
19571+ if (__size > PAGE_SIZE) \
19572+ _cond_resched(); \
19573+ if (__get_user(__c_ao, (char __user *)__addr)) \
19574+ break; \
19575+ if (type != VERIFY_WRITE) { \
19576+ __addr = __addr_ao; \
19577+ continue; \
19578+ } \
19579+ if (__put_user(__c_ao, (char __user *)__addr)) \
19580+ break; \
19581+ __addr = __addr_ao; \
19582+ } \
19583+ } \
19584+ } \
19585+ __ret_ao; \
19586+})
19587
19588 /*
19589 * The exception table consists of pairs of addresses relative to the
19590@@ -134,11 +168,13 @@ extern int __get_user_8(void);
19591 extern int __get_user_bad(void);
19592
19593 /*
19594- * This is a type: either unsigned long, if the argument fits into
19595- * that type, or otherwise unsigned long long.
19596+ * This is a type: either (un)signed int, if the argument fits into
19597+ * that type, or otherwise (un)signed long long.
19598 */
19599 #define __inttype(x) \
19600-__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19601+__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0U), \
19602+ __builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0ULL, 0LL),\
19603+ __builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0U, 0)))
19604
19605 /**
19606 * get_user: - Get a simple variable from user space.
19607@@ -176,10 +212,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19608 register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
19609 __chk_user_ptr(ptr); \
19610 might_fault(); \
19611+ pax_open_userland(); \
19612 asm volatile("call __get_user_%P3" \
19613 : "=a" (__ret_gu), "=r" (__val_gu) \
19614 : "0" (ptr), "i" (sizeof(*(ptr)))); \
19615 (x) = (__force __typeof__(*(ptr))) __val_gu; \
19616+ pax_close_userland(); \
19617 __ret_gu; \
19618 })
19619
19620@@ -187,13 +225,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19621 asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
19622 : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
19623
19624-
19625+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19626+#define __copyuser_seg "gs;"
19627+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
19628+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
19629+#else
19630+#define __copyuser_seg
19631+#define __COPYUSER_SET_ES
19632+#define __COPYUSER_RESTORE_ES
19633+#endif
19634
19635 #ifdef CONFIG_X86_32
19636 #define __put_user_asm_u64(x, addr, err, errret) \
19637 asm volatile(ASM_STAC "\n" \
19638- "1: movl %%eax,0(%2)\n" \
19639- "2: movl %%edx,4(%2)\n" \
19640+ "1: "__copyuser_seg"movl %%eax,0(%2)\n" \
19641+ "2: "__copyuser_seg"movl %%edx,4(%2)\n" \
19642 "3: " ASM_CLAC "\n" \
19643 ".section .fixup,\"ax\"\n" \
19644 "4: movl %3,%0\n" \
19645@@ -206,8 +252,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19646
19647 #define __put_user_asm_ex_u64(x, addr) \
19648 asm volatile(ASM_STAC "\n" \
19649- "1: movl %%eax,0(%1)\n" \
19650- "2: movl %%edx,4(%1)\n" \
19651+ "1: "__copyuser_seg"movl %%eax,0(%1)\n" \
19652+ "2: "__copyuser_seg"movl %%edx,4(%1)\n" \
19653 "3: " ASM_CLAC "\n" \
19654 _ASM_EXTABLE_EX(1b, 2b) \
19655 _ASM_EXTABLE_EX(2b, 3b) \
19656@@ -257,7 +303,8 @@ extern void __put_user_8(void);
19657 __typeof__(*(ptr)) __pu_val; \
19658 __chk_user_ptr(ptr); \
19659 might_fault(); \
19660- __pu_val = x; \
19661+ __pu_val = (x); \
19662+ pax_open_userland(); \
19663 switch (sizeof(*(ptr))) { \
19664 case 1: \
19665 __put_user_x(1, __pu_val, ptr, __ret_pu); \
19666@@ -275,6 +322,7 @@ extern void __put_user_8(void);
19667 __put_user_x(X, __pu_val, ptr, __ret_pu); \
19668 break; \
19669 } \
19670+ pax_close_userland(); \
19671 __ret_pu; \
19672 })
19673
19674@@ -355,8 +403,10 @@ do { \
19675 } while (0)
19676
19677 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19678+do { \
19679+ pax_open_userland(); \
19680 asm volatile(ASM_STAC "\n" \
19681- "1: mov"itype" %2,%"rtype"1\n" \
19682+ "1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
19683 "2: " ASM_CLAC "\n" \
19684 ".section .fixup,\"ax\"\n" \
19685 "3: mov %3,%0\n" \
19686@@ -364,8 +414,10 @@ do { \
19687 " jmp 2b\n" \
19688 ".previous\n" \
19689 _ASM_EXTABLE(1b, 3b) \
19690- : "=r" (err), ltype(x) \
19691- : "m" (__m(addr)), "i" (errret), "0" (err))
19692+ : "=r" (err), ltype (x) \
19693+ : "m" (__m(addr)), "i" (errret), "0" (err)); \
19694+ pax_close_userland(); \
19695+} while (0)
19696
19697 #define __get_user_size_ex(x, ptr, size) \
19698 do { \
19699@@ -389,7 +441,7 @@ do { \
19700 } while (0)
19701
19702 #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
19703- asm volatile("1: mov"itype" %1,%"rtype"0\n" \
19704+ asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
19705 "2:\n" \
19706 _ASM_EXTABLE_EX(1b, 2b) \
19707 : ltype(x) : "m" (__m(addr)))
19708@@ -406,13 +458,24 @@ do { \
19709 int __gu_err; \
19710 unsigned long __gu_val; \
19711 __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \
19712- (x) = (__force __typeof__(*(ptr)))__gu_val; \
19713+ (x) = (__typeof__(*(ptr)))__gu_val; \
19714 __gu_err; \
19715 })
19716
19717 /* FIXME: this hack is definitely wrong -AK */
19718 struct __large_struct { unsigned long buf[100]; };
19719-#define __m(x) (*(struct __large_struct __user *)(x))
19720+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19721+#define ____m(x) \
19722+({ \
19723+ unsigned long ____x = (unsigned long)(x); \
19724+ if (____x < pax_user_shadow_base) \
19725+ ____x += pax_user_shadow_base; \
19726+ (typeof(x))____x; \
19727+})
19728+#else
19729+#define ____m(x) (x)
19730+#endif
19731+#define __m(x) (*(struct __large_struct __user *)____m(x))
19732
19733 /*
19734 * Tell gcc we read from memory instead of writing: this is because
19735@@ -420,8 +483,10 @@ struct __large_struct { unsigned long buf[100]; };
19736 * aliasing issues.
19737 */
19738 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19739+do { \
19740+ pax_open_userland(); \
19741 asm volatile(ASM_STAC "\n" \
19742- "1: mov"itype" %"rtype"1,%2\n" \
19743+ "1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
19744 "2: " ASM_CLAC "\n" \
19745 ".section .fixup,\"ax\"\n" \
19746 "3: mov %3,%0\n" \
19747@@ -429,10 +494,12 @@ struct __large_struct { unsigned long buf[100]; };
19748 ".previous\n" \
19749 _ASM_EXTABLE(1b, 3b) \
19750 : "=r"(err) \
19751- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
19752+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err));\
19753+ pax_close_userland(); \
19754+} while (0)
19755
19756 #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \
19757- asm volatile("1: mov"itype" %"rtype"0,%1\n" \
19758+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
19759 "2:\n" \
19760 _ASM_EXTABLE_EX(1b, 2b) \
19761 : : ltype(x), "m" (__m(addr)))
19762@@ -442,11 +509,13 @@ struct __large_struct { unsigned long buf[100]; };
19763 */
19764 #define uaccess_try do { \
19765 current_thread_info()->uaccess_err = 0; \
19766+ pax_open_userland(); \
19767 stac(); \
19768 barrier();
19769
19770 #define uaccess_catch(err) \
19771 clac(); \
19772+ pax_close_userland(); \
19773 (err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0); \
19774 } while (0)
19775
19776@@ -471,8 +540,12 @@ struct __large_struct { unsigned long buf[100]; };
19777 * On error, the variable @x is set to zero.
19778 */
19779
19780+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19781+#define __get_user(x, ptr) get_user((x), (ptr))
19782+#else
19783 #define __get_user(x, ptr) \
19784 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
19785+#endif
19786
19787 /**
19788 * __put_user: - Write a simple value into user space, with less checking.
19789@@ -494,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; };
19790 * Returns zero on success, or -EFAULT on error.
19791 */
19792
19793+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19794+#define __put_user(x, ptr) put_user((x), (ptr))
19795+#else
19796 #define __put_user(x, ptr) \
19797 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
19798+#endif
19799
19800 #define __get_user_unaligned __get_user
19801 #define __put_user_unaligned __put_user
19802@@ -513,7 +590,7 @@ struct __large_struct { unsigned long buf[100]; };
19803 #define get_user_ex(x, ptr) do { \
19804 unsigned long __gue_val; \
19805 __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \
19806- (x) = (__force __typeof__(*(ptr)))__gue_val; \
19807+ (x) = (__typeof__(*(ptr)))__gue_val; \
19808 } while (0)
19809
19810 #define put_user_try uaccess_try
19811@@ -531,7 +608,7 @@ extern __must_check long strlen_user(const char __user *str);
19812 extern __must_check long strnlen_user(const char __user *str, long n);
19813
19814 unsigned long __must_check clear_user(void __user *mem, unsigned long len);
19815-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
19816+unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
19817
19818 extern void __cmpxchg_wrong_size(void)
19819 __compiletime_error("Bad argument size for cmpxchg");
19820@@ -542,18 +619,19 @@ extern void __cmpxchg_wrong_size(void)
19821 __typeof__(ptr) __uval = (uval); \
19822 __typeof__(*(ptr)) __old = (old); \
19823 __typeof__(*(ptr)) __new = (new); \
19824+ pax_open_userland(); \
19825 switch (size) { \
19826 case 1: \
19827 { \
19828 asm volatile("\t" ASM_STAC "\n" \
19829- "1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n" \
19830+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgb %4, %2\n"\
19831 "2:\t" ASM_CLAC "\n" \
19832 "\t.section .fixup, \"ax\"\n" \
19833 "3:\tmov %3, %0\n" \
19834 "\tjmp 2b\n" \
19835 "\t.previous\n" \
19836 _ASM_EXTABLE(1b, 3b) \
19837- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19838+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19839 : "i" (-EFAULT), "q" (__new), "1" (__old) \
19840 : "memory" \
19841 ); \
19842@@ -562,14 +640,14 @@ extern void __cmpxchg_wrong_size(void)
19843 case 2: \
19844 { \
19845 asm volatile("\t" ASM_STAC "\n" \
19846- "1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n" \
19847+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgw %4, %2\n"\
19848 "2:\t" ASM_CLAC "\n" \
19849 "\t.section .fixup, \"ax\"\n" \
19850 "3:\tmov %3, %0\n" \
19851 "\tjmp 2b\n" \
19852 "\t.previous\n" \
19853 _ASM_EXTABLE(1b, 3b) \
19854- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19855+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19856 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19857 : "memory" \
19858 ); \
19859@@ -578,14 +656,14 @@ extern void __cmpxchg_wrong_size(void)
19860 case 4: \
19861 { \
19862 asm volatile("\t" ASM_STAC "\n" \
19863- "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" \
19864+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"\
19865 "2:\t" ASM_CLAC "\n" \
19866 "\t.section .fixup, \"ax\"\n" \
19867 "3:\tmov %3, %0\n" \
19868 "\tjmp 2b\n" \
19869 "\t.previous\n" \
19870 _ASM_EXTABLE(1b, 3b) \
19871- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19872+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19873 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19874 : "memory" \
19875 ); \
19876@@ -597,14 +675,14 @@ extern void __cmpxchg_wrong_size(void)
19877 __cmpxchg_wrong_size(); \
19878 \
19879 asm volatile("\t" ASM_STAC "\n" \
19880- "1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n" \
19881+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgq %4, %2\n"\
19882 "2:\t" ASM_CLAC "\n" \
19883 "\t.section .fixup, \"ax\"\n" \
19884 "3:\tmov %3, %0\n" \
19885 "\tjmp 2b\n" \
19886 "\t.previous\n" \
19887 _ASM_EXTABLE(1b, 3b) \
19888- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19889+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19890 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19891 : "memory" \
19892 ); \
19893@@ -613,6 +691,7 @@ extern void __cmpxchg_wrong_size(void)
19894 default: \
19895 __cmpxchg_wrong_size(); \
19896 } \
19897+ pax_close_userland(); \
19898 *__uval = __old; \
19899 __ret; \
19900 })
19901@@ -636,17 +715,6 @@ extern struct movsl_mask {
19902
19903 #define ARCH_HAS_NOCACHE_UACCESS 1
19904
19905-#ifdef CONFIG_X86_32
19906-# include <asm/uaccess_32.h>
19907-#else
19908-# include <asm/uaccess_64.h>
19909-#endif
19910-
19911-unsigned long __must_check _copy_from_user(void *to, const void __user *from,
19912- unsigned n);
19913-unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19914- unsigned n);
19915-
19916 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
19917 # define copy_user_diag __compiletime_error
19918 #else
19919@@ -656,7 +724,7 @@ unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19920 extern void copy_user_diag("copy_from_user() buffer size is too small")
19921 copy_from_user_overflow(void);
19922 extern void copy_user_diag("copy_to_user() buffer size is too small")
19923-copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19924+copy_to_user_overflow(void);
19925
19926 #undef copy_user_diag
19927
19928@@ -669,7 +737,7 @@ __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
19929
19930 extern void
19931 __compiletime_warning("copy_to_user() buffer size is not provably correct")
19932-__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19933+__copy_to_user_overflow(void) __asm__("copy_to_user_overflow");
19934 #define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
19935
19936 #else
19937@@ -684,10 +752,16 @@ __copy_from_user_overflow(int size, unsigned long count)
19938
19939 #endif
19940
19941+#ifdef CONFIG_X86_32
19942+# include <asm/uaccess_32.h>
19943+#else
19944+# include <asm/uaccess_64.h>
19945+#endif
19946+
19947 static inline unsigned long __must_check
19948 copy_from_user(void *to, const void __user *from, unsigned long n)
19949 {
19950- int sz = __compiletime_object_size(to);
19951+ size_t sz = __compiletime_object_size(to);
19952
19953 might_fault();
19954
19955@@ -709,12 +783,15 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19956 * case, and do only runtime checking for non-constant sizes.
19957 */
19958
19959- if (likely(sz < 0 || sz >= n))
19960- n = _copy_from_user(to, from, n);
19961- else if(__builtin_constant_p(n))
19962- copy_from_user_overflow();
19963- else
19964- __copy_from_user_overflow(sz, n);
19965+ if (likely(sz != (size_t)-1 && sz < n)) {
19966+ if(__builtin_constant_p(n))
19967+ copy_from_user_overflow();
19968+ else
19969+ __copy_from_user_overflow(sz, n);
19970+ } else if (access_ok(VERIFY_READ, from, n))
19971+ n = __copy_from_user(to, from, n);
19972+ else if ((long)n > 0)
19973+ memset(to, 0, n);
19974
19975 return n;
19976 }
19977@@ -722,17 +799,18 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19978 static inline unsigned long __must_check
19979 copy_to_user(void __user *to, const void *from, unsigned long n)
19980 {
19981- int sz = __compiletime_object_size(from);
19982+ size_t sz = __compiletime_object_size(from);
19983
19984 might_fault();
19985
19986 /* See the comment in copy_from_user() above. */
19987- if (likely(sz < 0 || sz >= n))
19988- n = _copy_to_user(to, from, n);
19989- else if(__builtin_constant_p(n))
19990- copy_to_user_overflow();
19991- else
19992- __copy_to_user_overflow(sz, n);
19993+ if (likely(sz != (size_t)-1 && sz < n)) {
19994+ if(__builtin_constant_p(n))
19995+ copy_to_user_overflow();
19996+ else
19997+ __copy_to_user_overflow(sz, n);
19998+ } else if (access_ok(VERIFY_WRITE, to, n))
19999+ n = __copy_to_user(to, from, n);
20000
20001 return n;
20002 }
20003diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
20004index 3c03a5d..edb68ae 100644
20005--- a/arch/x86/include/asm/uaccess_32.h
20006+++ b/arch/x86/include/asm/uaccess_32.h
20007@@ -40,9 +40,14 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
20008 * anything, so this is accurate.
20009 */
20010
20011-static __always_inline unsigned long __must_check
20012+static __always_inline __size_overflow(3) unsigned long __must_check
20013 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
20014 {
20015+ if ((long)n < 0)
20016+ return n;
20017+
20018+ check_object_size(from, n, true);
20019+
20020 if (__builtin_constant_p(n)) {
20021 unsigned long ret;
20022
20023@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
20024 __copy_to_user(void __user *to, const void *from, unsigned long n)
20025 {
20026 might_fault();
20027+
20028 return __copy_to_user_inatomic(to, from, n);
20029 }
20030
20031-static __always_inline unsigned long
20032+static __always_inline __size_overflow(3) unsigned long
20033 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
20034 {
20035+ if ((long)n < 0)
20036+ return n;
20037+
20038 /* Avoid zeroing the tail if the copy fails..
20039 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
20040 * but as the zeroing behaviour is only significant when n is not
20041@@ -137,6 +146,12 @@ static __always_inline unsigned long
20042 __copy_from_user(void *to, const void __user *from, unsigned long n)
20043 {
20044 might_fault();
20045+
20046+ if ((long)n < 0)
20047+ return n;
20048+
20049+ check_object_size(to, n, false);
20050+
20051 if (__builtin_constant_p(n)) {
20052 unsigned long ret;
20053
20054@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
20055 const void __user *from, unsigned long n)
20056 {
20057 might_fault();
20058+
20059+ if ((long)n < 0)
20060+ return n;
20061+
20062 if (__builtin_constant_p(n)) {
20063 unsigned long ret;
20064
20065@@ -181,7 +200,10 @@ static __always_inline unsigned long
20066 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
20067 unsigned long n)
20068 {
20069- return __copy_from_user_ll_nocache_nozero(to, from, n);
20070+ if ((long)n < 0)
20071+ return n;
20072+
20073+ return __copy_from_user_ll_nocache_nozero(to, from, n);
20074 }
20075
20076 #endif /* _ASM_X86_UACCESS_32_H */
20077diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
20078index f2f9b39..2ae1bf8 100644
20079--- a/arch/x86/include/asm/uaccess_64.h
20080+++ b/arch/x86/include/asm/uaccess_64.h
20081@@ -10,6 +10,9 @@
20082 #include <asm/alternative.h>
20083 #include <asm/cpufeature.h>
20084 #include <asm/page.h>
20085+#include <asm/pgtable.h>
20086+
20087+#define set_fs(x) (current_thread_info()->addr_limit = (x))
20088
20089 /*
20090 * Copy To/From Userspace
20091@@ -23,8 +26,8 @@ copy_user_generic_string(void *to, const void *from, unsigned len);
20092 __must_check unsigned long
20093 copy_user_generic_unrolled(void *to, const void *from, unsigned len);
20094
20095-static __always_inline __must_check unsigned long
20096-copy_user_generic(void *to, const void *from, unsigned len)
20097+static __always_inline __must_check __size_overflow(3) unsigned long
20098+copy_user_generic(void *to, const void *from, unsigned long len)
20099 {
20100 unsigned ret;
20101
20102@@ -46,121 +49,170 @@ copy_user_generic(void *to, const void *from, unsigned len)
20103 }
20104
20105 __must_check unsigned long
20106-copy_in_user(void __user *to, const void __user *from, unsigned len);
20107+copy_in_user(void __user *to, const void __user *from, unsigned long len);
20108
20109 static __always_inline __must_check
20110-int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
20111+unsigned long __copy_from_user_nocheck(void *dst, const void __user *src, unsigned long size)
20112 {
20113- int ret = 0;
20114+ size_t sz = __compiletime_object_size(dst);
20115+ unsigned ret = 0;
20116+
20117+ if (size > INT_MAX)
20118+ return size;
20119+
20120+ check_object_size(dst, size, false);
20121+
20122+#ifdef CONFIG_PAX_MEMORY_UDEREF
20123+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20124+ return size;
20125+#endif
20126+
20127+ if (unlikely(sz != (size_t)-1 && sz < size)) {
20128+ if(__builtin_constant_p(size))
20129+ copy_from_user_overflow();
20130+ else
20131+ __copy_from_user_overflow(sz, size);
20132+ return size;
20133+ }
20134
20135 if (!__builtin_constant_p(size))
20136- return copy_user_generic(dst, (__force void *)src, size);
20137+ return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
20138 switch (size) {
20139- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
20140+ case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
20141 ret, "b", "b", "=q", 1);
20142 return ret;
20143- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
20144+ case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
20145 ret, "w", "w", "=r", 2);
20146 return ret;
20147- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
20148+ case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
20149 ret, "l", "k", "=r", 4);
20150 return ret;
20151- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
20152+ case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20153 ret, "q", "", "=r", 8);
20154 return ret;
20155 case 10:
20156- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
20157+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20158 ret, "q", "", "=r", 10);
20159 if (unlikely(ret))
20160 return ret;
20161 __get_user_asm(*(u16 *)(8 + (char *)dst),
20162- (u16 __user *)(8 + (char __user *)src),
20163+ (const u16 __user *)(8 + (const char __user *)src),
20164 ret, "w", "w", "=r", 2);
20165 return ret;
20166 case 16:
20167- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
20168+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20169 ret, "q", "", "=r", 16);
20170 if (unlikely(ret))
20171 return ret;
20172 __get_user_asm(*(u64 *)(8 + (char *)dst),
20173- (u64 __user *)(8 + (char __user *)src),
20174+ (const u64 __user *)(8 + (const char __user *)src),
20175 ret, "q", "", "=r", 8);
20176 return ret;
20177 default:
20178- return copy_user_generic(dst, (__force void *)src, size);
20179+ return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
20180 }
20181 }
20182
20183 static __always_inline __must_check
20184-int __copy_from_user(void *dst, const void __user *src, unsigned size)
20185+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
20186 {
20187 might_fault();
20188 return __copy_from_user_nocheck(dst, src, size);
20189 }
20190
20191 static __always_inline __must_check
20192-int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
20193+unsigned long __copy_to_user_nocheck(void __user *dst, const void *src, unsigned long size)
20194 {
20195- int ret = 0;
20196+ size_t sz = __compiletime_object_size(src);
20197+ unsigned ret = 0;
20198+
20199+ if (size > INT_MAX)
20200+ return size;
20201+
20202+ check_object_size(src, size, true);
20203+
20204+#ifdef CONFIG_PAX_MEMORY_UDEREF
20205+ if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
20206+ return size;
20207+#endif
20208+
20209+ if (unlikely(sz != (size_t)-1 && sz < size)) {
20210+ if(__builtin_constant_p(size))
20211+ copy_to_user_overflow();
20212+ else
20213+ __copy_to_user_overflow(sz, size);
20214+ return size;
20215+ }
20216
20217 if (!__builtin_constant_p(size))
20218- return copy_user_generic((__force void *)dst, src, size);
20219+ return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20220 switch (size) {
20221- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
20222+ case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
20223 ret, "b", "b", "iq", 1);
20224 return ret;
20225- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
20226+ case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
20227 ret, "w", "w", "ir", 2);
20228 return ret;
20229- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
20230+ case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
20231 ret, "l", "k", "ir", 4);
20232 return ret;
20233- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
20234+ case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20235 ret, "q", "", "er", 8);
20236 return ret;
20237 case 10:
20238- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20239+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20240 ret, "q", "", "er", 10);
20241 if (unlikely(ret))
20242 return ret;
20243 asm("":::"memory");
20244- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
20245+ __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
20246 ret, "w", "w", "ir", 2);
20247 return ret;
20248 case 16:
20249- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20250+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20251 ret, "q", "", "er", 16);
20252 if (unlikely(ret))
20253 return ret;
20254 asm("":::"memory");
20255- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
20256+ __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
20257 ret, "q", "", "er", 8);
20258 return ret;
20259 default:
20260- return copy_user_generic((__force void *)dst, src, size);
20261+ return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20262 }
20263 }
20264
20265 static __always_inline __must_check
20266-int __copy_to_user(void __user *dst, const void *src, unsigned size)
20267+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
20268 {
20269 might_fault();
20270 return __copy_to_user_nocheck(dst, src, size);
20271 }
20272
20273 static __always_inline __must_check
20274-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20275+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20276 {
20277- int ret = 0;
20278+ unsigned ret = 0;
20279
20280 might_fault();
20281+
20282+ if (size > INT_MAX)
20283+ return size;
20284+
20285+#ifdef CONFIG_PAX_MEMORY_UDEREF
20286+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20287+ return size;
20288+ if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
20289+ return size;
20290+#endif
20291+
20292 if (!__builtin_constant_p(size))
20293- return copy_user_generic((__force void *)dst,
20294- (__force void *)src, size);
20295+ return copy_user_generic((__force_kernel void *)____m(dst),
20296+ (__force_kernel const void *)____m(src), size);
20297 switch (size) {
20298 case 1: {
20299 u8 tmp;
20300- __get_user_asm(tmp, (u8 __user *)src,
20301+ __get_user_asm(tmp, (const u8 __user *)src,
20302 ret, "b", "b", "=q", 1);
20303 if (likely(!ret))
20304 __put_user_asm(tmp, (u8 __user *)dst,
20305@@ -169,7 +221,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20306 }
20307 case 2: {
20308 u16 tmp;
20309- __get_user_asm(tmp, (u16 __user *)src,
20310+ __get_user_asm(tmp, (const u16 __user *)src,
20311 ret, "w", "w", "=r", 2);
20312 if (likely(!ret))
20313 __put_user_asm(tmp, (u16 __user *)dst,
20314@@ -179,7 +231,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20315
20316 case 4: {
20317 u32 tmp;
20318- __get_user_asm(tmp, (u32 __user *)src,
20319+ __get_user_asm(tmp, (const u32 __user *)src,
20320 ret, "l", "k", "=r", 4);
20321 if (likely(!ret))
20322 __put_user_asm(tmp, (u32 __user *)dst,
20323@@ -188,7 +240,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20324 }
20325 case 8: {
20326 u64 tmp;
20327- __get_user_asm(tmp, (u64 __user *)src,
20328+ __get_user_asm(tmp, (const u64 __user *)src,
20329 ret, "q", "", "=r", 8);
20330 if (likely(!ret))
20331 __put_user_asm(tmp, (u64 __user *)dst,
20332@@ -196,41 +248,58 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20333 return ret;
20334 }
20335 default:
20336- return copy_user_generic((__force void *)dst,
20337- (__force void *)src, size);
20338+ return copy_user_generic((__force_kernel void *)____m(dst),
20339+ (__force_kernel const void *)____m(src), size);
20340 }
20341 }
20342
20343-static __must_check __always_inline int
20344-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
20345+static __must_check __always_inline unsigned long
20346+__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
20347 {
20348 return __copy_from_user_nocheck(dst, src, size);
20349 }
20350
20351-static __must_check __always_inline int
20352-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
20353+static __must_check __always_inline unsigned long
20354+__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
20355 {
20356 return __copy_to_user_nocheck(dst, src, size);
20357 }
20358
20359-extern long __copy_user_nocache(void *dst, const void __user *src,
20360- unsigned size, int zerorest);
20361+extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
20362+ unsigned long size, int zerorest);
20363
20364-static inline int
20365-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
20366+static inline unsigned long
20367+__copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
20368 {
20369 might_fault();
20370+
20371+ if (size > INT_MAX)
20372+ return size;
20373+
20374+#ifdef CONFIG_PAX_MEMORY_UDEREF
20375+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20376+ return size;
20377+#endif
20378+
20379 return __copy_user_nocache(dst, src, size, 1);
20380 }
20381
20382-static inline int
20383+static inline unsigned long
20384 __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
20385- unsigned size)
20386+ unsigned long size)
20387 {
20388+ if (size > INT_MAX)
20389+ return size;
20390+
20391+#ifdef CONFIG_PAX_MEMORY_UDEREF
20392+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20393+ return size;
20394+#endif
20395+
20396 return __copy_user_nocache(dst, src, size, 0);
20397 }
20398
20399 unsigned long
20400-copy_user_handle_tail(char *to, char *from, unsigned len);
20401+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len) __size_overflow(3);
20402
20403 #endif /* _ASM_X86_UACCESS_64_H */
20404diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
20405index 5b238981..77fdd78 100644
20406--- a/arch/x86/include/asm/word-at-a-time.h
20407+++ b/arch/x86/include/asm/word-at-a-time.h
20408@@ -11,7 +11,7 @@
20409 * and shift, for example.
20410 */
20411 struct word_at_a_time {
20412- const unsigned long one_bits, high_bits;
20413+ unsigned long one_bits, high_bits;
20414 };
20415
20416 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
20417diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
20418index f58a9c7..dc378042a 100644
20419--- a/arch/x86/include/asm/x86_init.h
20420+++ b/arch/x86/include/asm/x86_init.h
20421@@ -129,7 +129,7 @@ struct x86_init_ops {
20422 struct x86_init_timers timers;
20423 struct x86_init_iommu iommu;
20424 struct x86_init_pci pci;
20425-};
20426+} __no_const;
20427
20428 /**
20429 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
20430@@ -140,7 +140,7 @@ struct x86_cpuinit_ops {
20431 void (*setup_percpu_clockev)(void);
20432 void (*early_percpu_clock_init)(void);
20433 void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
20434-};
20435+} __no_const;
20436
20437 struct timespec;
20438
20439@@ -168,7 +168,7 @@ struct x86_platform_ops {
20440 void (*save_sched_clock_state)(void);
20441 void (*restore_sched_clock_state)(void);
20442 void (*apic_post_init)(void);
20443-};
20444+} __no_const;
20445
20446 struct pci_dev;
20447 struct msi_msg;
20448@@ -182,7 +182,7 @@ struct x86_msi_ops {
20449 void (*teardown_msi_irqs)(struct pci_dev *dev);
20450 void (*restore_msi_irqs)(struct pci_dev *dev);
20451 int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
20452-};
20453+} __no_const;
20454
20455 struct IO_APIC_route_entry;
20456 struct io_apic_irq_attr;
20457@@ -203,7 +203,7 @@ struct x86_io_apic_ops {
20458 unsigned int destination, int vector,
20459 struct io_apic_irq_attr *attr);
20460 void (*eoi_ioapic_pin)(int apic, int pin, int vector);
20461-};
20462+} __no_const;
20463
20464 extern struct x86_init_ops x86_init;
20465 extern struct x86_cpuinit_ops x86_cpuinit;
20466diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
20467index 358dcd3..23c0bf1 100644
20468--- a/arch/x86/include/asm/xen/page.h
20469+++ b/arch/x86/include/asm/xen/page.h
20470@@ -82,7 +82,7 @@ static inline int xen_safe_read_ulong(unsigned long *addr, unsigned long *val)
20471 * - get_phys_to_machine() is to be called by __pfn_to_mfn() only in special
20472 * cases needing an extended handling.
20473 */
20474-static inline unsigned long __pfn_to_mfn(unsigned long pfn)
20475+static inline unsigned long __intentional_overflow(-1) __pfn_to_mfn(unsigned long pfn)
20476 {
20477 unsigned long mfn;
20478
20479diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
20480index c9a6d68..cb57f42 100644
20481--- a/arch/x86/include/asm/xsave.h
20482+++ b/arch/x86/include/asm/xsave.h
20483@@ -223,12 +223,16 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20484 if (unlikely(err))
20485 return -EFAULT;
20486
20487+ pax_open_userland();
20488 __asm__ __volatile__(ASM_STAC "\n"
20489- "1:"XSAVE"\n"
20490+ "1:"
20491+ __copyuser_seg
20492+ XSAVE"\n"
20493 "2: " ASM_CLAC "\n"
20494 xstate_fault
20495 : "D" (buf), "a" (-1), "d" (-1), "0" (0)
20496 : "memory");
20497+ pax_close_userland();
20498 return err;
20499 }
20500
20501@@ -238,16 +242,20 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20502 static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
20503 {
20504 int err = 0;
20505- struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
20506+ struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
20507 u32 lmask = mask;
20508 u32 hmask = mask >> 32;
20509
20510+ pax_open_userland();
20511 __asm__ __volatile__(ASM_STAC "\n"
20512- "1:"XRSTOR"\n"
20513+ "1:"
20514+ __copyuser_seg
20515+ XRSTOR"\n"
20516 "2: " ASM_CLAC "\n"
20517 xstate_fault
20518 : "D" (xstate), "a" (lmask), "d" (hmask), "0" (0)
20519 : "memory"); /* memory required? */
20520+ pax_close_userland();
20521 return err;
20522 }
20523
20524diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
20525index d993e33..8db1b18 100644
20526--- a/arch/x86/include/uapi/asm/e820.h
20527+++ b/arch/x86/include/uapi/asm/e820.h
20528@@ -58,7 +58,7 @@ struct e820map {
20529 #define ISA_START_ADDRESS 0xa0000
20530 #define ISA_END_ADDRESS 0x100000
20531
20532-#define BIOS_BEGIN 0x000a0000
20533+#define BIOS_BEGIN 0x000c0000
20534 #define BIOS_END 0x00100000
20535
20536 #define BIOS_ROM_BASE 0xffe00000
20537diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
20538index 7b0a55a..ad115bf 100644
20539--- a/arch/x86/include/uapi/asm/ptrace-abi.h
20540+++ b/arch/x86/include/uapi/asm/ptrace-abi.h
20541@@ -49,7 +49,6 @@
20542 #define EFLAGS 144
20543 #define RSP 152
20544 #define SS 160
20545-#define ARGOFFSET R11
20546 #endif /* __ASSEMBLY__ */
20547
20548 /* top of stack page */
20549diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
20550index cdb1b70..426434c 100644
20551--- a/arch/x86/kernel/Makefile
20552+++ b/arch/x86/kernel/Makefile
20553@@ -28,7 +28,7 @@ obj-y += time.o ioport.o ldt.o dumpstack.o nmi.o
20554 obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o
20555 obj-$(CONFIG_IRQ_WORK) += irq_work.o
20556 obj-y += probe_roms.o
20557-obj-$(CONFIG_X86_32) += i386_ksyms_32.o
20558+obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
20559 obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
20560 obj-$(CONFIG_X86_64) += mcount_64.o
20561 obj-y += syscall_$(BITS).o vsyscall_gtod.o
20562diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
20563index 803b684..68c64f1 100644
20564--- a/arch/x86/kernel/acpi/boot.c
20565+++ b/arch/x86/kernel/acpi/boot.c
20566@@ -1361,7 +1361,7 @@ static void __init acpi_reduced_hw_init(void)
20567 * If your system is blacklisted here, but you find that acpi=force
20568 * works for you, please contact linux-acpi@vger.kernel.org
20569 */
20570-static struct dmi_system_id __initdata acpi_dmi_table[] = {
20571+static const struct dmi_system_id __initconst acpi_dmi_table[] = {
20572 /*
20573 * Boxes that need ACPI disabled
20574 */
20575@@ -1436,7 +1436,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
20576 };
20577
20578 /* second table for DMI checks that should run after early-quirks */
20579-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
20580+static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
20581 /*
20582 * HP laptops which use a DSDT reporting as HP/SB400/10000,
20583 * which includes some code which overrides all temperature
20584diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
20585index d1daead..acd77e2 100644
20586--- a/arch/x86/kernel/acpi/sleep.c
20587+++ b/arch/x86/kernel/acpi/sleep.c
20588@@ -99,8 +99,12 @@ int x86_acpi_suspend_lowlevel(void)
20589 #else /* CONFIG_64BIT */
20590 #ifdef CONFIG_SMP
20591 stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
20592+
20593+ pax_open_kernel();
20594 early_gdt_descr.address =
20595 (unsigned long)get_cpu_gdt_table(smp_processor_id());
20596+ pax_close_kernel();
20597+
20598 initial_gs = per_cpu_offset(smp_processor_id());
20599 #endif
20600 initial_code = (unsigned long)wakeup_long64;
20601diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
20602index 665c6b7..eae4d56 100644
20603--- a/arch/x86/kernel/acpi/wakeup_32.S
20604+++ b/arch/x86/kernel/acpi/wakeup_32.S
20605@@ -29,13 +29,11 @@ wakeup_pmode_return:
20606 # and restore the stack ... but you need gdt for this to work
20607 movl saved_context_esp, %esp
20608
20609- movl %cs:saved_magic, %eax
20610- cmpl $0x12345678, %eax
20611+ cmpl $0x12345678, saved_magic
20612 jne bogus_magic
20613
20614 # jump to place where we left off
20615- movl saved_eip, %eax
20616- jmp *%eax
20617+ jmp *(saved_eip)
20618
20619 bogus_magic:
20620 jmp bogus_magic
20621diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
20622index 703130f..27a155d 100644
20623--- a/arch/x86/kernel/alternative.c
20624+++ b/arch/x86/kernel/alternative.c
20625@@ -268,6 +268,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20626 */
20627 for (a = start; a < end; a++) {
20628 instr = (u8 *)&a->instr_offset + a->instr_offset;
20629+
20630+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20631+ instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20632+ if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20633+ instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20634+#endif
20635+
20636 replacement = (u8 *)&a->repl_offset + a->repl_offset;
20637 BUG_ON(a->replacementlen > a->instrlen);
20638 BUG_ON(a->instrlen > sizeof(insnbuf));
20639@@ -284,6 +291,11 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20640 add_nops(insnbuf + a->replacementlen,
20641 a->instrlen - a->replacementlen);
20642
20643+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20644+ if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20645+ instr = ktva_ktla(instr);
20646+#endif
20647+
20648 text_poke_early(instr, insnbuf, a->instrlen);
20649 }
20650 }
20651@@ -299,10 +311,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
20652 for (poff = start; poff < end; poff++) {
20653 u8 *ptr = (u8 *)poff + *poff;
20654
20655+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20656+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20657+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20658+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20659+#endif
20660+
20661 if (!*poff || ptr < text || ptr >= text_end)
20662 continue;
20663 /* turn DS segment override prefix into lock prefix */
20664- if (*ptr == 0x3e)
20665+ if (*ktla_ktva(ptr) == 0x3e)
20666 text_poke(ptr, ((unsigned char []){0xf0}), 1);
20667 }
20668 mutex_unlock(&text_mutex);
20669@@ -317,10 +335,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
20670 for (poff = start; poff < end; poff++) {
20671 u8 *ptr = (u8 *)poff + *poff;
20672
20673+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20674+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20675+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20676+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20677+#endif
20678+
20679 if (!*poff || ptr < text || ptr >= text_end)
20680 continue;
20681 /* turn lock prefix into DS segment override prefix */
20682- if (*ptr == 0xf0)
20683+ if (*ktla_ktva(ptr) == 0xf0)
20684 text_poke(ptr, ((unsigned char []){0x3E}), 1);
20685 }
20686 mutex_unlock(&text_mutex);
20687@@ -457,7 +481,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
20688
20689 BUG_ON(p->len > MAX_PATCH_LEN);
20690 /* prep the buffer with the original instructions */
20691- memcpy(insnbuf, p->instr, p->len);
20692+ memcpy(insnbuf, ktla_ktva(p->instr), p->len);
20693 used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
20694 (unsigned long)p->instr, p->len);
20695
20696@@ -504,7 +528,7 @@ void __init alternative_instructions(void)
20697 if (!uniproc_patched || num_possible_cpus() == 1)
20698 free_init_pages("SMP alternatives",
20699 (unsigned long)__smp_locks,
20700- (unsigned long)__smp_locks_end);
20701+ PAGE_ALIGN((unsigned long)__smp_locks_end));
20702 #endif
20703
20704 apply_paravirt(__parainstructions, __parainstructions_end);
20705@@ -524,13 +548,17 @@ void __init alternative_instructions(void)
20706 * instructions. And on the local CPU you need to be protected again NMI or MCE
20707 * handlers seeing an inconsistent instruction while you patch.
20708 */
20709-void *__init_or_module text_poke_early(void *addr, const void *opcode,
20710+void *__kprobes text_poke_early(void *addr, const void *opcode,
20711 size_t len)
20712 {
20713 unsigned long flags;
20714 local_irq_save(flags);
20715- memcpy(addr, opcode, len);
20716+
20717+ pax_open_kernel();
20718+ memcpy(ktla_ktva(addr), opcode, len);
20719 sync_core();
20720+ pax_close_kernel();
20721+
20722 local_irq_restore(flags);
20723 /* Could also do a CLFLUSH here to speed up CPU recovery; but
20724 that causes hangs on some VIA CPUs. */
20725@@ -552,36 +580,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
20726 */
20727 void *text_poke(void *addr, const void *opcode, size_t len)
20728 {
20729- unsigned long flags;
20730- char *vaddr;
20731+ unsigned char *vaddr = ktla_ktva(addr);
20732 struct page *pages[2];
20733- int i;
20734+ size_t i;
20735
20736 if (!core_kernel_text((unsigned long)addr)) {
20737- pages[0] = vmalloc_to_page(addr);
20738- pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
20739+ pages[0] = vmalloc_to_page(vaddr);
20740+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
20741 } else {
20742- pages[0] = virt_to_page(addr);
20743+ pages[0] = virt_to_page(vaddr);
20744 WARN_ON(!PageReserved(pages[0]));
20745- pages[1] = virt_to_page(addr + PAGE_SIZE);
20746+ pages[1] = virt_to_page(vaddr + PAGE_SIZE);
20747 }
20748 BUG_ON(!pages[0]);
20749- local_irq_save(flags);
20750- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
20751- if (pages[1])
20752- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
20753- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
20754- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
20755- clear_fixmap(FIX_TEXT_POKE0);
20756- if (pages[1])
20757- clear_fixmap(FIX_TEXT_POKE1);
20758- local_flush_tlb();
20759- sync_core();
20760- /* Could also do a CLFLUSH here to speed up CPU recovery; but
20761- that causes hangs on some VIA CPUs. */
20762+ text_poke_early(addr, opcode, len);
20763 for (i = 0; i < len; i++)
20764- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
20765- local_irq_restore(flags);
20766+ BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
20767 return addr;
20768 }
20769
20770@@ -601,7 +615,7 @@ int poke_int3_handler(struct pt_regs *regs)
20771 if (likely(!bp_patching_in_progress))
20772 return 0;
20773
20774- if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
20775+ if (user_mode(regs) || regs->ip != (unsigned long)bp_int3_addr)
20776 return 0;
20777
20778 /* set up the specified breakpoint handler */
20779@@ -635,7 +649,7 @@ int poke_int3_handler(struct pt_regs *regs)
20780 */
20781 void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
20782 {
20783- unsigned char int3 = 0xcc;
20784+ const unsigned char int3 = 0xcc;
20785
20786 bp_int3_handler = handler;
20787 bp_int3_addr = (u8 *)addr + sizeof(int3);
20788diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
20789index ad3639a..bd4253c 100644
20790--- a/arch/x86/kernel/apic/apic.c
20791+++ b/arch/x86/kernel/apic/apic.c
20792@@ -171,7 +171,7 @@ int first_system_vector = FIRST_SYSTEM_VECTOR;
20793 /*
20794 * Debug level, exported for io_apic.c
20795 */
20796-unsigned int apic_verbosity;
20797+int apic_verbosity;
20798
20799 int pic_mode;
20800
20801@@ -1918,7 +1918,7 @@ static inline void __smp_error_interrupt(struct pt_regs *regs)
20802 apic_write(APIC_ESR, 0);
20803 v = apic_read(APIC_ESR);
20804 ack_APIC_irq();
20805- atomic_inc(&irq_err_count);
20806+ atomic_inc_unchecked(&irq_err_count);
20807
20808 apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
20809 smp_processor_id(), v);
20810diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
20811index de918c4..32eed23 100644
20812--- a/arch/x86/kernel/apic/apic_flat_64.c
20813+++ b/arch/x86/kernel/apic/apic_flat_64.c
20814@@ -154,7 +154,7 @@ static int flat_probe(void)
20815 return 1;
20816 }
20817
20818-static struct apic apic_flat = {
20819+static struct apic apic_flat __read_only = {
20820 .name = "flat",
20821 .probe = flat_probe,
20822 .acpi_madt_oem_check = flat_acpi_madt_oem_check,
20823@@ -260,7 +260,7 @@ static int physflat_probe(void)
20824 return 0;
20825 }
20826
20827-static struct apic apic_physflat = {
20828+static struct apic apic_physflat __read_only = {
20829
20830 .name = "physical flat",
20831 .probe = physflat_probe,
20832diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
20833index b205cdb..d8503ff 100644
20834--- a/arch/x86/kernel/apic/apic_noop.c
20835+++ b/arch/x86/kernel/apic/apic_noop.c
20836@@ -108,7 +108,7 @@ static void noop_apic_write(u32 reg, u32 v)
20837 WARN_ON_ONCE(cpu_has_apic && !disable_apic);
20838 }
20839
20840-struct apic apic_noop = {
20841+struct apic apic_noop __read_only = {
20842 .name = "noop",
20843 .probe = noop_probe,
20844 .acpi_madt_oem_check = NULL,
20845diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
20846index c4a8d63..fe893ac 100644
20847--- a/arch/x86/kernel/apic/bigsmp_32.c
20848+++ b/arch/x86/kernel/apic/bigsmp_32.c
20849@@ -147,7 +147,7 @@ static int probe_bigsmp(void)
20850 return dmi_bigsmp;
20851 }
20852
20853-static struct apic apic_bigsmp = {
20854+static struct apic apic_bigsmp __read_only = {
20855
20856 .name = "bigsmp",
20857 .probe = probe_bigsmp,
20858diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
20859index f4dc246..fbab133 100644
20860--- a/arch/x86/kernel/apic/io_apic.c
20861+++ b/arch/x86/kernel/apic/io_apic.c
20862@@ -1862,7 +1862,7 @@ int native_ioapic_set_affinity(struct irq_data *data,
20863 return ret;
20864 }
20865
20866-atomic_t irq_mis_count;
20867+atomic_unchecked_t irq_mis_count;
20868
20869 #ifdef CONFIG_GENERIC_PENDING_IRQ
20870 static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
20871@@ -2003,7 +2003,7 @@ static void ack_ioapic_level(struct irq_data *data)
20872 * at the cpu.
20873 */
20874 if (!(v & (1 << (i & 0x1f)))) {
20875- atomic_inc(&irq_mis_count);
20876+ atomic_inc_unchecked(&irq_mis_count);
20877
20878 eoi_ioapic_irq(irq, cfg);
20879 }
20880@@ -2011,7 +2011,7 @@ static void ack_ioapic_level(struct irq_data *data)
20881 ioapic_irqd_unmask(data, cfg, masked);
20882 }
20883
20884-static struct irq_chip ioapic_chip __read_mostly = {
20885+static struct irq_chip ioapic_chip = {
20886 .name = "IO-APIC",
20887 .irq_startup = startup_ioapic_irq,
20888 .irq_mask = mask_ioapic_irq,
20889@@ -2070,7 +2070,7 @@ static void ack_lapic_irq(struct irq_data *data)
20890 ack_APIC_irq();
20891 }
20892
20893-static struct irq_chip lapic_chip __read_mostly = {
20894+static struct irq_chip lapic_chip = {
20895 .name = "local-APIC",
20896 .irq_mask = mask_lapic_irq,
20897 .irq_unmask = unmask_lapic_irq,
20898diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
20899index bda4886..f9c7195 100644
20900--- a/arch/x86/kernel/apic/probe_32.c
20901+++ b/arch/x86/kernel/apic/probe_32.c
20902@@ -72,7 +72,7 @@ static int probe_default(void)
20903 return 1;
20904 }
20905
20906-static struct apic apic_default = {
20907+static struct apic apic_default __read_only = {
20908
20909 .name = "default",
20910 .probe = probe_default,
20911diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
20912index 6cedd79..023ff8e 100644
20913--- a/arch/x86/kernel/apic/vector.c
20914+++ b/arch/x86/kernel/apic/vector.c
20915@@ -21,7 +21,7 @@
20916
20917 static DEFINE_RAW_SPINLOCK(vector_lock);
20918
20919-void lock_vector_lock(void)
20920+void lock_vector_lock(void) __acquires(vector_lock)
20921 {
20922 /* Used to the online set of cpus does not change
20923 * during assign_irq_vector.
20924@@ -29,7 +29,7 @@ void lock_vector_lock(void)
20925 raw_spin_lock(&vector_lock);
20926 }
20927
20928-void unlock_vector_lock(void)
20929+void unlock_vector_lock(void) __releases(vector_lock)
20930 {
20931 raw_spin_unlock(&vector_lock);
20932 }
20933diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
20934index e658f21..b695a1a 100644
20935--- a/arch/x86/kernel/apic/x2apic_cluster.c
20936+++ b/arch/x86/kernel/apic/x2apic_cluster.c
20937@@ -182,7 +182,7 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
20938 return notifier_from_errno(err);
20939 }
20940
20941-static struct notifier_block __refdata x2apic_cpu_notifier = {
20942+static struct notifier_block x2apic_cpu_notifier = {
20943 .notifier_call = update_clusterinfo,
20944 };
20945
20946@@ -234,7 +234,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
20947 cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
20948 }
20949
20950-static struct apic apic_x2apic_cluster = {
20951+static struct apic apic_x2apic_cluster __read_only = {
20952
20953 .name = "cluster x2apic",
20954 .probe = x2apic_cluster_probe,
20955diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
20956index 6fae733..5ca17af 100644
20957--- a/arch/x86/kernel/apic/x2apic_phys.c
20958+++ b/arch/x86/kernel/apic/x2apic_phys.c
20959@@ -88,7 +88,7 @@ static int x2apic_phys_probe(void)
20960 return apic == &apic_x2apic_phys;
20961 }
20962
20963-static struct apic apic_x2apic_phys = {
20964+static struct apic apic_x2apic_phys __read_only = {
20965
20966 .name = "physical x2apic",
20967 .probe = x2apic_phys_probe,
20968diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
20969index 8e9dcfd..c61b3e4 100644
20970--- a/arch/x86/kernel/apic/x2apic_uv_x.c
20971+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
20972@@ -348,7 +348,7 @@ static int uv_probe(void)
20973 return apic == &apic_x2apic_uv_x;
20974 }
20975
20976-static struct apic __refdata apic_x2apic_uv_x = {
20977+static struct apic apic_x2apic_uv_x __read_only = {
20978
20979 .name = "UV large system",
20980 .probe = uv_probe,
20981diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
20982index 927ec92..de68f32 100644
20983--- a/arch/x86/kernel/apm_32.c
20984+++ b/arch/x86/kernel/apm_32.c
20985@@ -432,7 +432,7 @@ static DEFINE_MUTEX(apm_mutex);
20986 * This is for buggy BIOS's that refer to (real mode) segment 0x40
20987 * even though they are called in protected mode.
20988 */
20989-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
20990+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
20991 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
20992
20993 static const char driver_version[] = "1.16ac"; /* no spaces */
20994@@ -610,7 +610,10 @@ static long __apm_bios_call(void *_call)
20995 BUG_ON(cpu != 0);
20996 gdt = get_cpu_gdt_table(cpu);
20997 save_desc_40 = gdt[0x40 / 8];
20998+
20999+ pax_open_kernel();
21000 gdt[0x40 / 8] = bad_bios_desc;
21001+ pax_close_kernel();
21002
21003 apm_irq_save(flags);
21004 APM_DO_SAVE_SEGS;
21005@@ -619,7 +622,11 @@ static long __apm_bios_call(void *_call)
21006 &call->esi);
21007 APM_DO_RESTORE_SEGS;
21008 apm_irq_restore(flags);
21009+
21010+ pax_open_kernel();
21011 gdt[0x40 / 8] = save_desc_40;
21012+ pax_close_kernel();
21013+
21014 put_cpu();
21015
21016 return call->eax & 0xff;
21017@@ -686,7 +693,10 @@ static long __apm_bios_call_simple(void *_call)
21018 BUG_ON(cpu != 0);
21019 gdt = get_cpu_gdt_table(cpu);
21020 save_desc_40 = gdt[0x40 / 8];
21021+
21022+ pax_open_kernel();
21023 gdt[0x40 / 8] = bad_bios_desc;
21024+ pax_close_kernel();
21025
21026 apm_irq_save(flags);
21027 APM_DO_SAVE_SEGS;
21028@@ -694,7 +704,11 @@ static long __apm_bios_call_simple(void *_call)
21029 &call->eax);
21030 APM_DO_RESTORE_SEGS;
21031 apm_irq_restore(flags);
21032+
21033+ pax_open_kernel();
21034 gdt[0x40 / 8] = save_desc_40;
21035+ pax_close_kernel();
21036+
21037 put_cpu();
21038 return error;
21039 }
21040@@ -2039,7 +2053,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
21041 return 0;
21042 }
21043
21044-static struct dmi_system_id __initdata apm_dmi_table[] = {
21045+static const struct dmi_system_id __initconst apm_dmi_table[] = {
21046 {
21047 print_if_true,
21048 KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
21049@@ -2349,12 +2363,15 @@ static int __init apm_init(void)
21050 * code to that CPU.
21051 */
21052 gdt = get_cpu_gdt_table(0);
21053+
21054+ pax_open_kernel();
21055 set_desc_base(&gdt[APM_CS >> 3],
21056 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
21057 set_desc_base(&gdt[APM_CS_16 >> 3],
21058 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
21059 set_desc_base(&gdt[APM_DS >> 3],
21060 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
21061+ pax_close_kernel();
21062
21063 proc_create("apm", 0, NULL, &apm_file_ops);
21064
21065diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
21066index 9f6b934..cf5ffb3 100644
21067--- a/arch/x86/kernel/asm-offsets.c
21068+++ b/arch/x86/kernel/asm-offsets.c
21069@@ -32,6 +32,8 @@ void common(void) {
21070 OFFSET(TI_flags, thread_info, flags);
21071 OFFSET(TI_status, thread_info, status);
21072 OFFSET(TI_addr_limit, thread_info, addr_limit);
21073+ OFFSET(TI_lowest_stack, thread_info, lowest_stack);
21074+ DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
21075
21076 BLANK();
21077 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
21078@@ -52,8 +54,26 @@ void common(void) {
21079 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
21080 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
21081 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
21082+
21083+#ifdef CONFIG_PAX_KERNEXEC
21084+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
21085 #endif
21086
21087+#ifdef CONFIG_PAX_MEMORY_UDEREF
21088+ OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
21089+ OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
21090+#ifdef CONFIG_X86_64
21091+ OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
21092+#endif
21093+#endif
21094+
21095+#endif
21096+
21097+ BLANK();
21098+ DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
21099+ DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
21100+ DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
21101+
21102 #ifdef CONFIG_XEN
21103 BLANK();
21104 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
21105diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
21106index fdcbb4d..036dd93 100644
21107--- a/arch/x86/kernel/asm-offsets_64.c
21108+++ b/arch/x86/kernel/asm-offsets_64.c
21109@@ -80,6 +80,7 @@ int main(void)
21110 BLANK();
21111 #undef ENTRY
21112
21113+ DEFINE(TSS_size, sizeof(struct tss_struct));
21114 OFFSET(TSS_ist, tss_struct, x86_tss.ist);
21115 BLANK();
21116
21117diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
21118index 80091ae..0c5184f 100644
21119--- a/arch/x86/kernel/cpu/Makefile
21120+++ b/arch/x86/kernel/cpu/Makefile
21121@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
21122 CFLAGS_REMOVE_perf_event.o = -pg
21123 endif
21124
21125-# Make sure load_percpu_segment has no stackprotector
21126-nostackp := $(call cc-option, -fno-stack-protector)
21127-CFLAGS_common.o := $(nostackp)
21128-
21129 obj-y := intel_cacheinfo.o scattered.o topology.o
21130 obj-y += common.o
21131 obj-y += rdrand.o
21132diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
21133index a220239..607fc38 100644
21134--- a/arch/x86/kernel/cpu/amd.c
21135+++ b/arch/x86/kernel/cpu/amd.c
21136@@ -717,7 +717,7 @@ static void init_amd(struct cpuinfo_x86 *c)
21137 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
21138 {
21139 /* AMD errata T13 (order #21922) */
21140- if ((c->x86 == 6)) {
21141+ if (c->x86 == 6) {
21142 /* Duron Rev A0 */
21143 if (c->x86_model == 3 && c->x86_mask == 0)
21144 size = 64;
21145diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
21146index 2346c95..c061472 100644
21147--- a/arch/x86/kernel/cpu/common.c
21148+++ b/arch/x86/kernel/cpu/common.c
21149@@ -91,60 +91,6 @@ static const struct cpu_dev default_cpu = {
21150
21151 static const struct cpu_dev *this_cpu = &default_cpu;
21152
21153-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
21154-#ifdef CONFIG_X86_64
21155- /*
21156- * We need valid kernel segments for data and code in long mode too
21157- * IRET will check the segment types kkeil 2000/10/28
21158- * Also sysret mandates a special GDT layout
21159- *
21160- * TLS descriptors are currently at a different place compared to i386.
21161- * Hopefully nobody expects them at a fixed place (Wine?)
21162- */
21163- [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
21164- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
21165- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
21166- [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
21167- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
21168- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
21169-#else
21170- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
21171- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21172- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
21173- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
21174- /*
21175- * Segments used for calling PnP BIOS have byte granularity.
21176- * They code segments and data segments have fixed 64k limits,
21177- * the transfer segment sizes are set at run time.
21178- */
21179- /* 32-bit code */
21180- [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
21181- /* 16-bit code */
21182- [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
21183- /* 16-bit data */
21184- [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff),
21185- /* 16-bit data */
21186- [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0),
21187- /* 16-bit data */
21188- [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0),
21189- /*
21190- * The APM segments have byte granularity and their bases
21191- * are set at run time. All have 64k limits.
21192- */
21193- /* 32-bit code */
21194- [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
21195- /* 16-bit code */
21196- [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
21197- /* data */
21198- [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff),
21199-
21200- [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21201- [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21202- GDT_STACK_CANARY_INIT
21203-#endif
21204-} };
21205-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
21206-
21207 static int __init x86_xsave_setup(char *s)
21208 {
21209 if (strlen(s))
21210@@ -306,6 +252,59 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
21211 }
21212 }
21213
21214+#ifdef CONFIG_X86_64
21215+static __init int setup_disable_pcid(char *arg)
21216+{
21217+ setup_clear_cpu_cap(X86_FEATURE_PCID);
21218+ setup_clear_cpu_cap(X86_FEATURE_INVPCID);
21219+
21220+#ifdef CONFIG_PAX_MEMORY_UDEREF
21221+ if (clone_pgd_mask != ~(pgdval_t)0UL)
21222+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
21223+#endif
21224+
21225+ return 1;
21226+}
21227+__setup("nopcid", setup_disable_pcid);
21228+
21229+static void setup_pcid(struct cpuinfo_x86 *c)
21230+{
21231+ if (!cpu_has(c, X86_FEATURE_PCID)) {
21232+ clear_cpu_cap(c, X86_FEATURE_INVPCID);
21233+
21234+#ifdef CONFIG_PAX_MEMORY_UDEREF
21235+ if (clone_pgd_mask != ~(pgdval_t)0UL) {
21236+ pax_open_kernel();
21237+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
21238+ pax_close_kernel();
21239+ printk("PAX: slow and weak UDEREF enabled\n");
21240+ } else
21241+ printk("PAX: UDEREF disabled\n");
21242+#endif
21243+
21244+ return;
21245+ }
21246+
21247+ printk("PAX: PCID detected\n");
21248+ cr4_set_bits(X86_CR4_PCIDE);
21249+
21250+#ifdef CONFIG_PAX_MEMORY_UDEREF
21251+ pax_open_kernel();
21252+ clone_pgd_mask = ~(pgdval_t)0UL;
21253+ pax_close_kernel();
21254+ if (pax_user_shadow_base)
21255+ printk("PAX: weak UDEREF enabled\n");
21256+ else {
21257+ set_cpu_cap(c, X86_FEATURE_STRONGUDEREF);
21258+ printk("PAX: strong UDEREF enabled\n");
21259+ }
21260+#endif
21261+
21262+ if (cpu_has(c, X86_FEATURE_INVPCID))
21263+ printk("PAX: INVPCID detected\n");
21264+}
21265+#endif
21266+
21267 /*
21268 * Some CPU features depend on higher CPUID levels, which may not always
21269 * be available due to CPUID level capping or broken virtualization
21270@@ -406,7 +405,7 @@ void switch_to_new_gdt(int cpu)
21271 {
21272 struct desc_ptr gdt_descr;
21273
21274- gdt_descr.address = (long)get_cpu_gdt_table(cpu);
21275+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
21276 gdt_descr.size = GDT_SIZE - 1;
21277 load_gdt(&gdt_descr);
21278 /* Reload the per-cpu base */
21279@@ -897,6 +896,20 @@ static void identify_cpu(struct cpuinfo_x86 *c)
21280 setup_smep(c);
21281 setup_smap(c);
21282
21283+#ifdef CONFIG_X86_32
21284+#ifdef CONFIG_PAX_PAGEEXEC
21285+ if (!(__supported_pte_mask & _PAGE_NX))
21286+ clear_cpu_cap(c, X86_FEATURE_PSE);
21287+#endif
21288+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
21289+ clear_cpu_cap(c, X86_FEATURE_SEP);
21290+#endif
21291+#endif
21292+
21293+#ifdef CONFIG_X86_64
21294+ setup_pcid(c);
21295+#endif
21296+
21297 /*
21298 * The vendor-specific functions might have changed features.
21299 * Now we do "generic changes."
21300@@ -979,7 +992,7 @@ static void syscall32_cpu_init(void)
21301 void enable_sep_cpu(void)
21302 {
21303 int cpu = get_cpu();
21304- struct tss_struct *tss = &per_cpu(init_tss, cpu);
21305+ struct tss_struct *tss = init_tss + cpu;
21306
21307 if (!boot_cpu_has(X86_FEATURE_SEP)) {
21308 put_cpu();
21309@@ -1117,14 +1130,16 @@ static __init int setup_disablecpuid(char *arg)
21310 }
21311 __setup("clearcpuid=", setup_disablecpuid);
21312
21313+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
21314+EXPORT_PER_CPU_SYMBOL(current_tinfo);
21315+
21316 DEFINE_PER_CPU(unsigned long, kernel_stack) =
21317- (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
21318+ (unsigned long)&init_thread_union - 16 + THREAD_SIZE;
21319 EXPORT_PER_CPU_SYMBOL(kernel_stack);
21320
21321 #ifdef CONFIG_X86_64
21322-struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21323-struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1,
21324- (unsigned long) debug_idt_table };
21325+struct desc_ptr idt_descr __read_only = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21326+const struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) debug_idt_table };
21327
21328 DEFINE_PER_CPU_FIRST(union irq_stack_union,
21329 irq_stack_union) __aligned(PAGE_SIZE) __visible;
21330@@ -1307,7 +1322,7 @@ void cpu_init(void)
21331 */
21332 load_ucode_ap();
21333
21334- t = &per_cpu(init_tss, cpu);
21335+ t = init_tss + cpu;
21336 oist = &per_cpu(orig_ist, cpu);
21337
21338 #ifdef CONFIG_NUMA
21339@@ -1339,7 +1354,6 @@ void cpu_init(void)
21340 wrmsrl(MSR_KERNEL_GS_BASE, 0);
21341 barrier();
21342
21343- x86_configure_nx();
21344 x2apic_setup();
21345
21346 /*
21347@@ -1391,7 +1405,7 @@ void cpu_init(void)
21348 {
21349 int cpu = smp_processor_id();
21350 struct task_struct *curr = current;
21351- struct tss_struct *t = &per_cpu(init_tss, cpu);
21352+ struct tss_struct *t = init_tss + cpu;
21353 struct thread_struct *thread = &curr->thread;
21354
21355 wait_for_master_cpu(cpu);
21356diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
21357index 6596433..1ad6eaf 100644
21358--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
21359+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
21360@@ -1024,6 +1024,22 @@ static struct attribute *default_attrs[] = {
21361 };
21362
21363 #ifdef CONFIG_AMD_NB
21364+static struct attribute *default_attrs_amd_nb[] = {
21365+ &type.attr,
21366+ &level.attr,
21367+ &coherency_line_size.attr,
21368+ &physical_line_partition.attr,
21369+ &ways_of_associativity.attr,
21370+ &number_of_sets.attr,
21371+ &size.attr,
21372+ &shared_cpu_map.attr,
21373+ &shared_cpu_list.attr,
21374+ NULL,
21375+ NULL,
21376+ NULL,
21377+ NULL
21378+};
21379+
21380 static struct attribute **amd_l3_attrs(void)
21381 {
21382 static struct attribute **attrs;
21383@@ -1034,18 +1050,7 @@ static struct attribute **amd_l3_attrs(void)
21384
21385 n = ARRAY_SIZE(default_attrs);
21386
21387- if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
21388- n += 2;
21389-
21390- if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
21391- n += 1;
21392-
21393- attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
21394- if (attrs == NULL)
21395- return attrs = default_attrs;
21396-
21397- for (n = 0; default_attrs[n]; n++)
21398- attrs[n] = default_attrs[n];
21399+ attrs = default_attrs_amd_nb;
21400
21401 if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
21402 attrs[n++] = &cache_disable_0.attr;
21403@@ -1096,6 +1101,13 @@ static struct kobj_type ktype_cache = {
21404 .default_attrs = default_attrs,
21405 };
21406
21407+#ifdef CONFIG_AMD_NB
21408+static struct kobj_type ktype_cache_amd_nb = {
21409+ .sysfs_ops = &sysfs_ops,
21410+ .default_attrs = default_attrs_amd_nb,
21411+};
21412+#endif
21413+
21414 static struct kobj_type ktype_percpu_entry = {
21415 .sysfs_ops = &sysfs_ops,
21416 };
21417@@ -1161,20 +1173,26 @@ static int cache_add_dev(struct device *dev)
21418 return retval;
21419 }
21420
21421+#ifdef CONFIG_AMD_NB
21422+ amd_l3_attrs();
21423+#endif
21424+
21425 for (i = 0; i < num_cache_leaves; i++) {
21426+ struct kobj_type *ktype;
21427+
21428 this_object = INDEX_KOBJECT_PTR(cpu, i);
21429 this_object->cpu = cpu;
21430 this_object->index = i;
21431
21432 this_leaf = CPUID4_INFO_IDX(cpu, i);
21433
21434- ktype_cache.default_attrs = default_attrs;
21435+ ktype = &ktype_cache;
21436 #ifdef CONFIG_AMD_NB
21437 if (this_leaf->base.nb)
21438- ktype_cache.default_attrs = amd_l3_attrs();
21439+ ktype = &ktype_cache_amd_nb;
21440 #endif
21441 retval = kobject_init_and_add(&(this_object->kobj),
21442- &ktype_cache,
21443+ ktype,
21444 per_cpu(ici_cache_kobject, cpu),
21445 "index%1lu", i);
21446 if (unlikely(retval)) {
21447diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
21448index 3c036cb..3b5677d 100644
21449--- a/arch/x86/kernel/cpu/mcheck/mce.c
21450+++ b/arch/x86/kernel/cpu/mcheck/mce.c
21451@@ -47,6 +47,7 @@
21452 #include <asm/tlbflush.h>
21453 #include <asm/mce.h>
21454 #include <asm/msr.h>
21455+#include <asm/local.h>
21456
21457 #include "mce-internal.h"
21458
21459@@ -258,7 +259,7 @@ static void print_mce(struct mce *m)
21460 !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
21461 m->cs, m->ip);
21462
21463- if (m->cs == __KERNEL_CS)
21464+ if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
21465 print_symbol("{%s}", m->ip);
21466 pr_cont("\n");
21467 }
21468@@ -291,10 +292,10 @@ static void print_mce(struct mce *m)
21469
21470 #define PANIC_TIMEOUT 5 /* 5 seconds */
21471
21472-static atomic_t mce_panicked;
21473+static atomic_unchecked_t mce_panicked;
21474
21475 static int fake_panic;
21476-static atomic_t mce_fake_panicked;
21477+static atomic_unchecked_t mce_fake_panicked;
21478
21479 /* Panic in progress. Enable interrupts and wait for final IPI */
21480 static void wait_for_panic(void)
21481@@ -318,7 +319,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21482 /*
21483 * Make sure only one CPU runs in machine check panic
21484 */
21485- if (atomic_inc_return(&mce_panicked) > 1)
21486+ if (atomic_inc_return_unchecked(&mce_panicked) > 1)
21487 wait_for_panic();
21488 barrier();
21489
21490@@ -326,7 +327,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21491 console_verbose();
21492 } else {
21493 /* Don't log too much for fake panic */
21494- if (atomic_inc_return(&mce_fake_panicked) > 1)
21495+ if (atomic_inc_return_unchecked(&mce_fake_panicked) > 1)
21496 return;
21497 }
21498 /* First print corrected ones that are still unlogged */
21499@@ -365,7 +366,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21500 if (!fake_panic) {
21501 if (panic_timeout == 0)
21502 panic_timeout = mca_cfg.panic_timeout;
21503- panic(msg);
21504+ panic("%s", msg);
21505 } else
21506 pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
21507 }
21508@@ -743,7 +744,7 @@ static int mce_timed_out(u64 *t, const char *msg)
21509 * might have been modified by someone else.
21510 */
21511 rmb();
21512- if (atomic_read(&mce_panicked))
21513+ if (atomic_read_unchecked(&mce_panicked))
21514 wait_for_panic();
21515 if (!mca_cfg.monarch_timeout)
21516 goto out;
21517@@ -1669,7 +1670,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
21518 }
21519
21520 /* Call the installed machine check handler for this CPU setup. */
21521-void (*machine_check_vector)(struct pt_regs *, long error_code) =
21522+void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
21523 unexpected_machine_check;
21524
21525 /*
21526@@ -1692,7 +1693,9 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21527 return;
21528 }
21529
21530+ pax_open_kernel();
21531 machine_check_vector = do_machine_check;
21532+ pax_close_kernel();
21533
21534 __mcheck_cpu_init_generic();
21535 __mcheck_cpu_init_vendor(c);
21536@@ -1706,7 +1709,7 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21537 */
21538
21539 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
21540-static int mce_chrdev_open_count; /* #times opened */
21541+static local_t mce_chrdev_open_count; /* #times opened */
21542 static int mce_chrdev_open_exclu; /* already open exclusive? */
21543
21544 static int mce_chrdev_open(struct inode *inode, struct file *file)
21545@@ -1714,7 +1717,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21546 spin_lock(&mce_chrdev_state_lock);
21547
21548 if (mce_chrdev_open_exclu ||
21549- (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
21550+ (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
21551 spin_unlock(&mce_chrdev_state_lock);
21552
21553 return -EBUSY;
21554@@ -1722,7 +1725,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21555
21556 if (file->f_flags & O_EXCL)
21557 mce_chrdev_open_exclu = 1;
21558- mce_chrdev_open_count++;
21559+ local_inc(&mce_chrdev_open_count);
21560
21561 spin_unlock(&mce_chrdev_state_lock);
21562
21563@@ -1733,7 +1736,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
21564 {
21565 spin_lock(&mce_chrdev_state_lock);
21566
21567- mce_chrdev_open_count--;
21568+ local_dec(&mce_chrdev_open_count);
21569 mce_chrdev_open_exclu = 0;
21570
21571 spin_unlock(&mce_chrdev_state_lock);
21572@@ -2408,7 +2411,7 @@ static __init void mce_init_banks(void)
21573
21574 for (i = 0; i < mca_cfg.banks; i++) {
21575 struct mce_bank *b = &mce_banks[i];
21576- struct device_attribute *a = &b->attr;
21577+ device_attribute_no_const *a = &b->attr;
21578
21579 sysfs_attr_init(&a->attr);
21580 a->attr.name = b->attrname;
21581@@ -2515,7 +2518,7 @@ struct dentry *mce_get_debugfs_dir(void)
21582 static void mce_reset(void)
21583 {
21584 cpu_missing = 0;
21585- atomic_set(&mce_fake_panicked, 0);
21586+ atomic_set_unchecked(&mce_fake_panicked, 0);
21587 atomic_set(&mce_executing, 0);
21588 atomic_set(&mce_callin, 0);
21589 atomic_set(&global_nwo, 0);
21590diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
21591index 737b0ad..09ec66e 100644
21592--- a/arch/x86/kernel/cpu/mcheck/p5.c
21593+++ b/arch/x86/kernel/cpu/mcheck/p5.c
21594@@ -12,6 +12,7 @@
21595 #include <asm/tlbflush.h>
21596 #include <asm/mce.h>
21597 #include <asm/msr.h>
21598+#include <asm/pgtable.h>
21599
21600 /* By default disabled */
21601 int mce_p5_enabled __read_mostly;
21602@@ -55,7 +56,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
21603 if (!cpu_has(c, X86_FEATURE_MCE))
21604 return;
21605
21606+ pax_open_kernel();
21607 machine_check_vector = pentium_machine_check;
21608+ pax_close_kernel();
21609 /* Make sure the vector pointer is visible before we enable MCEs: */
21610 wmb();
21611
21612diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
21613index 44f1382..315b292 100644
21614--- a/arch/x86/kernel/cpu/mcheck/winchip.c
21615+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
21616@@ -11,6 +11,7 @@
21617 #include <asm/tlbflush.h>
21618 #include <asm/mce.h>
21619 #include <asm/msr.h>
21620+#include <asm/pgtable.h>
21621
21622 /* Machine check handler for WinChip C6: */
21623 static void winchip_machine_check(struct pt_regs *regs, long error_code)
21624@@ -28,7 +29,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
21625 {
21626 u32 lo, hi;
21627
21628+ pax_open_kernel();
21629 machine_check_vector = winchip_machine_check;
21630+ pax_close_kernel();
21631 /* Make sure the vector pointer is visible before we enable MCEs: */
21632 wmb();
21633
21634diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
21635index 36a8361..e7058c2 100644
21636--- a/arch/x86/kernel/cpu/microcode/core.c
21637+++ b/arch/x86/kernel/cpu/microcode/core.c
21638@@ -518,7 +518,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
21639 return NOTIFY_OK;
21640 }
21641
21642-static struct notifier_block __refdata mc_cpu_notifier = {
21643+static struct notifier_block mc_cpu_notifier = {
21644 .notifier_call = mc_cpu_callback,
21645 };
21646
21647diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
21648index 746e7fd..8dc677e 100644
21649--- a/arch/x86/kernel/cpu/microcode/intel.c
21650+++ b/arch/x86/kernel/cpu/microcode/intel.c
21651@@ -298,13 +298,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
21652
21653 static int get_ucode_user(void *to, const void *from, size_t n)
21654 {
21655- return copy_from_user(to, from, n);
21656+ return copy_from_user(to, (const void __force_user *)from, n);
21657 }
21658
21659 static enum ucode_state
21660 request_microcode_user(int cpu, const void __user *buf, size_t size)
21661 {
21662- return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
21663+ return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
21664 }
21665
21666 static void microcode_fini_cpu(int cpu)
21667diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
21668index ea5f363..cb0e905 100644
21669--- a/arch/x86/kernel/cpu/mtrr/main.c
21670+++ b/arch/x86/kernel/cpu/mtrr/main.c
21671@@ -66,7 +66,7 @@ static DEFINE_MUTEX(mtrr_mutex);
21672 u64 size_or_mask, size_and_mask;
21673 static bool mtrr_aps_delayed_init;
21674
21675-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
21676+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
21677
21678 const struct mtrr_ops *mtrr_if;
21679
21680diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
21681index df5e41f..816c719 100644
21682--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
21683+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
21684@@ -25,7 +25,7 @@ struct mtrr_ops {
21685 int (*validate_add_page)(unsigned long base, unsigned long size,
21686 unsigned int type);
21687 int (*have_wrcomb)(void);
21688-};
21689+} __do_const;
21690
21691 extern int generic_get_free_region(unsigned long base, unsigned long size,
21692 int replace_reg);
21693diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
21694index b71a7f8..534af0e 100644
21695--- a/arch/x86/kernel/cpu/perf_event.c
21696+++ b/arch/x86/kernel/cpu/perf_event.c
21697@@ -1376,7 +1376,7 @@ static void __init pmu_check_apic(void)
21698
21699 }
21700
21701-static struct attribute_group x86_pmu_format_group = {
21702+static attribute_group_no_const x86_pmu_format_group = {
21703 .name = "format",
21704 .attrs = NULL,
21705 };
21706@@ -1475,7 +1475,7 @@ static struct attribute *events_attr[] = {
21707 NULL,
21708 };
21709
21710-static struct attribute_group x86_pmu_events_group = {
21711+static attribute_group_no_const x86_pmu_events_group = {
21712 .name = "events",
21713 .attrs = events_attr,
21714 };
21715@@ -2037,7 +2037,7 @@ static unsigned long get_segment_base(unsigned int segment)
21716 if (idx > GDT_ENTRIES)
21717 return 0;
21718
21719- desc = raw_cpu_ptr(gdt_page.gdt);
21720+ desc = get_cpu_gdt_table(smp_processor_id());
21721 }
21722
21723 return get_desc_base(desc + idx);
21724@@ -2127,7 +2127,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
21725 break;
21726
21727 perf_callchain_store(entry, frame.return_address);
21728- fp = frame.next_frame;
21729+ fp = (const void __force_user *)frame.next_frame;
21730 }
21731 }
21732
21733diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21734index 97242a9..cf9c30e 100644
21735--- a/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21736+++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21737@@ -402,7 +402,7 @@ static void perf_iommu_del(struct perf_event *event, int flags)
21738 static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
21739 {
21740 struct attribute **attrs;
21741- struct attribute_group *attr_group;
21742+ attribute_group_no_const *attr_group;
21743 int i = 0, j;
21744
21745 while (amd_iommu_v2_event_descs[i].attr.attr.name)
21746diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
21747index 2589906..1ca1000 100644
21748--- a/arch/x86/kernel/cpu/perf_event_intel.c
21749+++ b/arch/x86/kernel/cpu/perf_event_intel.c
21750@@ -2353,10 +2353,10 @@ __init int intel_pmu_init(void)
21751 x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3);
21752
21753 if (boot_cpu_has(X86_FEATURE_PDCM)) {
21754- u64 capabilities;
21755+ u64 capabilities = x86_pmu.intel_cap.capabilities;
21756
21757- rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
21758- x86_pmu.intel_cap.capabilities = capabilities;
21759+ if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
21760+ x86_pmu.intel_cap.capabilities = capabilities;
21761 }
21762
21763 intel_ds_init();
21764diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21765index c4bb8b8..9f7384d 100644
21766--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21767+++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21768@@ -465,7 +465,7 @@ static struct attribute *rapl_events_hsw_attr[] = {
21769 NULL,
21770 };
21771
21772-static struct attribute_group rapl_pmu_events_group = {
21773+static attribute_group_no_const rapl_pmu_events_group __read_only = {
21774 .name = "events",
21775 .attrs = NULL, /* patched at runtime */
21776 };
21777diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21778index c635b8b..b78835e 100644
21779--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21780+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21781@@ -733,7 +733,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
21782 static int __init uncore_type_init(struct intel_uncore_type *type)
21783 {
21784 struct intel_uncore_pmu *pmus;
21785- struct attribute_group *attr_group;
21786+ attribute_group_no_const *attr_group;
21787 struct attribute **attrs;
21788 int i, j;
21789
21790diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21791index 6c8c1e7..515b98a 100644
21792--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21793+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21794@@ -114,7 +114,7 @@ struct intel_uncore_box {
21795 struct uncore_event_desc {
21796 struct kobj_attribute attr;
21797 const char *config;
21798-};
21799+} __do_const;
21800
21801 ssize_t uncore_event_show(struct kobject *kobj,
21802 struct kobj_attribute *attr, char *buf);
21803diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
21804index 83741a7..bd3507d 100644
21805--- a/arch/x86/kernel/cpuid.c
21806+++ b/arch/x86/kernel/cpuid.c
21807@@ -170,7 +170,7 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb,
21808 return notifier_from_errno(err);
21809 }
21810
21811-static struct notifier_block __refdata cpuid_class_cpu_notifier =
21812+static struct notifier_block cpuid_class_cpu_notifier =
21813 {
21814 .notifier_call = cpuid_class_cpu_callback,
21815 };
21816diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
21817index aceb2f9..c76d3e3 100644
21818--- a/arch/x86/kernel/crash.c
21819+++ b/arch/x86/kernel/crash.c
21820@@ -105,7 +105,7 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
21821 #ifdef CONFIG_X86_32
21822 struct pt_regs fixed_regs;
21823
21824- if (!user_mode_vm(regs)) {
21825+ if (!user_mode(regs)) {
21826 crash_fixup_ss_esp(&fixed_regs, regs);
21827 regs = &fixed_regs;
21828 }
21829diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
21830index afa64ad..dce67dd 100644
21831--- a/arch/x86/kernel/crash_dump_64.c
21832+++ b/arch/x86/kernel/crash_dump_64.c
21833@@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
21834 return -ENOMEM;
21835
21836 if (userbuf) {
21837- if (copy_to_user(buf, vaddr + offset, csize)) {
21838+ if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
21839 iounmap(vaddr);
21840 return -EFAULT;
21841 }
21842diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
21843index f6dfd93..892ade4 100644
21844--- a/arch/x86/kernel/doublefault.c
21845+++ b/arch/x86/kernel/doublefault.c
21846@@ -12,7 +12,7 @@
21847
21848 #define DOUBLEFAULT_STACKSIZE (1024)
21849 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
21850-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
21851+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
21852
21853 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
21854
21855@@ -22,7 +22,7 @@ static void doublefault_fn(void)
21856 unsigned long gdt, tss;
21857
21858 native_store_gdt(&gdt_desc);
21859- gdt = gdt_desc.address;
21860+ gdt = (unsigned long)gdt_desc.address;
21861
21862 printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
21863
21864@@ -59,10 +59,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
21865 /* 0x2 bit is always set */
21866 .flags = X86_EFLAGS_SF | 0x2,
21867 .sp = STACK_START,
21868- .es = __USER_DS,
21869+ .es = __KERNEL_DS,
21870 .cs = __KERNEL_CS,
21871 .ss = __KERNEL_DS,
21872- .ds = __USER_DS,
21873+ .ds = __KERNEL_DS,
21874 .fs = __KERNEL_PERCPU,
21875
21876 .__cr3 = __pa_nodebug(swapper_pg_dir),
21877diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
21878index cf3df1d..b637d9a 100644
21879--- a/arch/x86/kernel/dumpstack.c
21880+++ b/arch/x86/kernel/dumpstack.c
21881@@ -2,6 +2,9 @@
21882 * Copyright (C) 1991, 1992 Linus Torvalds
21883 * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
21884 */
21885+#ifdef CONFIG_GRKERNSEC_HIDESYM
21886+#define __INCLUDED_BY_HIDESYM 1
21887+#endif
21888 #include <linux/kallsyms.h>
21889 #include <linux/kprobes.h>
21890 #include <linux/uaccess.h>
21891@@ -33,23 +36,21 @@ static void printk_stack_address(unsigned long address, int reliable)
21892
21893 void printk_address(unsigned long address)
21894 {
21895- pr_cont(" [<%p>] %pS\n", (void *)address, (void *)address);
21896+ pr_cont(" [<%p>] %pA\n", (void *)address, (void *)address);
21897 }
21898
21899 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
21900 static void
21901 print_ftrace_graph_addr(unsigned long addr, void *data,
21902 const struct stacktrace_ops *ops,
21903- struct thread_info *tinfo, int *graph)
21904+ struct task_struct *task, int *graph)
21905 {
21906- struct task_struct *task;
21907 unsigned long ret_addr;
21908 int index;
21909
21910 if (addr != (unsigned long)return_to_handler)
21911 return;
21912
21913- task = tinfo->task;
21914 index = task->curr_ret_stack;
21915
21916 if (!task->ret_stack || index < *graph)
21917@@ -66,7 +67,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21918 static inline void
21919 print_ftrace_graph_addr(unsigned long addr, void *data,
21920 const struct stacktrace_ops *ops,
21921- struct thread_info *tinfo, int *graph)
21922+ struct task_struct *task, int *graph)
21923 { }
21924 #endif
21925
21926@@ -77,10 +78,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21927 * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
21928 */
21929
21930-static inline int valid_stack_ptr(struct thread_info *tinfo,
21931- void *p, unsigned int size, void *end)
21932+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
21933 {
21934- void *t = tinfo;
21935 if (end) {
21936 if (p < end && p >= (end-THREAD_SIZE))
21937 return 1;
21938@@ -91,14 +90,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
21939 }
21940
21941 unsigned long
21942-print_context_stack(struct thread_info *tinfo,
21943+print_context_stack(struct task_struct *task, void *stack_start,
21944 unsigned long *stack, unsigned long bp,
21945 const struct stacktrace_ops *ops, void *data,
21946 unsigned long *end, int *graph)
21947 {
21948 struct stack_frame *frame = (struct stack_frame *)bp;
21949
21950- while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
21951+ while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
21952 unsigned long addr;
21953
21954 addr = *stack;
21955@@ -110,7 +109,7 @@ print_context_stack(struct thread_info *tinfo,
21956 } else {
21957 ops->address(data, addr, 0);
21958 }
21959- print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21960+ print_ftrace_graph_addr(addr, data, ops, task, graph);
21961 }
21962 stack++;
21963 }
21964@@ -119,7 +118,7 @@ print_context_stack(struct thread_info *tinfo,
21965 EXPORT_SYMBOL_GPL(print_context_stack);
21966
21967 unsigned long
21968-print_context_stack_bp(struct thread_info *tinfo,
21969+print_context_stack_bp(struct task_struct *task, void *stack_start,
21970 unsigned long *stack, unsigned long bp,
21971 const struct stacktrace_ops *ops, void *data,
21972 unsigned long *end, int *graph)
21973@@ -127,7 +126,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21974 struct stack_frame *frame = (struct stack_frame *)bp;
21975 unsigned long *ret_addr = &frame->return_address;
21976
21977- while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
21978+ while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
21979 unsigned long addr = *ret_addr;
21980
21981 if (!__kernel_text_address(addr))
21982@@ -136,7 +135,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21983 ops->address(data, addr, 1);
21984 frame = frame->next_frame;
21985 ret_addr = &frame->return_address;
21986- print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21987+ print_ftrace_graph_addr(addr, data, ops, task, graph);
21988 }
21989
21990 return (unsigned long)frame;
21991@@ -155,7 +154,7 @@ static int print_trace_stack(void *data, char *name)
21992 static void print_trace_address(void *data, unsigned long addr, int reliable)
21993 {
21994 touch_nmi_watchdog();
21995- printk(data);
21996+ printk("%s", (char *)data);
21997 printk_stack_address(addr, reliable);
21998 }
21999
22000@@ -225,6 +224,8 @@ unsigned long oops_begin(void)
22001 EXPORT_SYMBOL_GPL(oops_begin);
22002 NOKPROBE_SYMBOL(oops_begin);
22003
22004+extern void gr_handle_kernel_exploit(void);
22005+
22006 void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
22007 {
22008 if (regs && kexec_should_crash(current))
22009@@ -246,7 +247,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
22010 panic("Fatal exception in interrupt");
22011 if (panic_on_oops)
22012 panic("Fatal exception");
22013- do_exit(signr);
22014+
22015+ gr_handle_kernel_exploit();
22016+
22017+ do_group_exit(signr);
22018 }
22019 NOKPROBE_SYMBOL(oops_end);
22020
22021@@ -278,7 +282,7 @@ int __die(const char *str, struct pt_regs *regs, long err)
22022 print_modules();
22023 show_regs(regs);
22024 #ifdef CONFIG_X86_32
22025- if (user_mode_vm(regs)) {
22026+ if (user_mode(regs)) {
22027 sp = regs->sp;
22028 ss = regs->ss & 0xffff;
22029 } else {
22030@@ -307,7 +311,7 @@ void die(const char *str, struct pt_regs *regs, long err)
22031 unsigned long flags = oops_begin();
22032 int sig = SIGSEGV;
22033
22034- if (!user_mode_vm(regs))
22035+ if (!user_mode(regs))
22036 report_bug(regs->ip, regs);
22037
22038 if (__die(str, regs, err))
22039diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
22040index 5abd4cd..c65733b 100644
22041--- a/arch/x86/kernel/dumpstack_32.c
22042+++ b/arch/x86/kernel/dumpstack_32.c
22043@@ -61,15 +61,14 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22044 bp = stack_frame(task, regs);
22045
22046 for (;;) {
22047- struct thread_info *context;
22048+ void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
22049 void *end_stack;
22050
22051 end_stack = is_hardirq_stack(stack, cpu);
22052 if (!end_stack)
22053 end_stack = is_softirq_stack(stack, cpu);
22054
22055- context = task_thread_info(task);
22056- bp = ops->walk_stack(context, stack, bp, ops, data,
22057+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data,
22058 end_stack, &graph);
22059
22060 /* Stop if not on irq stack */
22061@@ -123,27 +122,28 @@ void show_regs(struct pt_regs *regs)
22062 int i;
22063
22064 show_regs_print_info(KERN_EMERG);
22065- __show_regs(regs, !user_mode_vm(regs));
22066+ __show_regs(regs, !user_mode(regs));
22067
22068 /*
22069 * When in-kernel, we also print out the stack and code at the
22070 * time of the fault..
22071 */
22072- if (!user_mode_vm(regs)) {
22073+ if (!user_mode(regs)) {
22074 unsigned int code_prologue = code_bytes * 43 / 64;
22075 unsigned int code_len = code_bytes;
22076 unsigned char c;
22077 u8 *ip;
22078+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
22079
22080 pr_emerg("Stack:\n");
22081 show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
22082
22083 pr_emerg("Code:");
22084
22085- ip = (u8 *)regs->ip - code_prologue;
22086+ ip = (u8 *)regs->ip - code_prologue + cs_base;
22087 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
22088 /* try starting at IP */
22089- ip = (u8 *)regs->ip;
22090+ ip = (u8 *)regs->ip + cs_base;
22091 code_len = code_len - code_prologue + 1;
22092 }
22093 for (i = 0; i < code_len; i++, ip++) {
22094@@ -152,7 +152,7 @@ void show_regs(struct pt_regs *regs)
22095 pr_cont(" Bad EIP value.");
22096 break;
22097 }
22098- if (ip == (u8 *)regs->ip)
22099+ if (ip == (u8 *)regs->ip + cs_base)
22100 pr_cont(" <%02x>", c);
22101 else
22102 pr_cont(" %02x", c);
22103@@ -165,6 +165,7 @@ int is_valid_bugaddr(unsigned long ip)
22104 {
22105 unsigned short ud2;
22106
22107+ ip = ktla_ktva(ip);
22108 if (ip < PAGE_OFFSET)
22109 return 0;
22110 if (probe_kernel_address((unsigned short *)ip, ud2))
22111@@ -172,3 +173,15 @@ int is_valid_bugaddr(unsigned long ip)
22112
22113 return ud2 == 0x0b0f;
22114 }
22115+
22116+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
22117+void pax_check_alloca(unsigned long size)
22118+{
22119+ unsigned long sp = (unsigned long)&sp, stack_left;
22120+
22121+ /* all kernel stacks are of the same size */
22122+ stack_left = sp & (THREAD_SIZE - 1);
22123+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22124+}
22125+EXPORT_SYMBOL(pax_check_alloca);
22126+#endif
22127diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
22128index ff86f19..73eabf4 100644
22129--- a/arch/x86/kernel/dumpstack_64.c
22130+++ b/arch/x86/kernel/dumpstack_64.c
22131@@ -153,12 +153,12 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22132 const struct stacktrace_ops *ops, void *data)
22133 {
22134 const unsigned cpu = get_cpu();
22135- struct thread_info *tinfo;
22136 unsigned long *irq_stack = (unsigned long *)per_cpu(irq_stack_ptr, cpu);
22137 unsigned long dummy;
22138 unsigned used = 0;
22139 int graph = 0;
22140 int done = 0;
22141+ void *stack_start;
22142
22143 if (!task)
22144 task = current;
22145@@ -179,7 +179,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22146 * current stack address. If the stacks consist of nested
22147 * exceptions
22148 */
22149- tinfo = task_thread_info(task);
22150 while (!done) {
22151 unsigned long *stack_end;
22152 enum stack_type stype;
22153@@ -202,7 +201,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22154 if (ops->stack(data, id) < 0)
22155 break;
22156
22157- bp = ops->walk_stack(tinfo, stack, bp, ops,
22158+ bp = ops->walk_stack(task, stack_end - EXCEPTION_STKSZ, stack, bp, ops,
22159 data, stack_end, &graph);
22160 ops->stack(data, "<EOE>");
22161 /*
22162@@ -210,6 +209,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22163 * second-to-last pointer (index -2 to end) in the
22164 * exception stack:
22165 */
22166+ if ((u16)stack_end[-1] != __KERNEL_DS)
22167+ goto out;
22168 stack = (unsigned long *) stack_end[-2];
22169 done = 0;
22170 break;
22171@@ -218,7 +219,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22172
22173 if (ops->stack(data, "IRQ") < 0)
22174 break;
22175- bp = ops->walk_stack(tinfo, stack, bp,
22176+ bp = ops->walk_stack(task, irq_stack, stack, bp,
22177 ops, data, stack_end, &graph);
22178 /*
22179 * We link to the next stack (which would be
22180@@ -240,7 +241,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22181 /*
22182 * This handles the process stack:
22183 */
22184- bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
22185+ stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
22186+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
22187+out:
22188 put_cpu();
22189 }
22190 EXPORT_SYMBOL(dump_trace);
22191@@ -344,8 +347,55 @@ int is_valid_bugaddr(unsigned long ip)
22192 {
22193 unsigned short ud2;
22194
22195- if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
22196+ if (probe_kernel_address((unsigned short *)ip, ud2))
22197 return 0;
22198
22199 return ud2 == 0x0b0f;
22200 }
22201+
22202+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
22203+void pax_check_alloca(unsigned long size)
22204+{
22205+ unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
22206+ unsigned cpu, used;
22207+ char *id;
22208+
22209+ /* check the process stack first */
22210+ stack_start = (unsigned long)task_stack_page(current);
22211+ stack_end = stack_start + THREAD_SIZE;
22212+ if (likely(stack_start <= sp && sp < stack_end)) {
22213+ unsigned long stack_left = sp & (THREAD_SIZE - 1);
22214+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22215+ return;
22216+ }
22217+
22218+ cpu = get_cpu();
22219+
22220+ /* check the irq stacks */
22221+ stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
22222+ stack_start = stack_end - IRQ_STACK_SIZE;
22223+ if (stack_start <= sp && sp < stack_end) {
22224+ unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
22225+ put_cpu();
22226+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22227+ return;
22228+ }
22229+
22230+ /* check the exception stacks */
22231+ used = 0;
22232+ stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
22233+ stack_start = stack_end - EXCEPTION_STKSZ;
22234+ if (stack_end && stack_start <= sp && sp < stack_end) {
22235+ unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
22236+ put_cpu();
22237+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22238+ return;
22239+ }
22240+
22241+ put_cpu();
22242+
22243+ /* unknown stack */
22244+ BUG();
22245+}
22246+EXPORT_SYMBOL(pax_check_alloca);
22247+#endif
22248diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
22249index 46201de..ebffabf 100644
22250--- a/arch/x86/kernel/e820.c
22251+++ b/arch/x86/kernel/e820.c
22252@@ -794,8 +794,8 @@ unsigned long __init e820_end_of_low_ram_pfn(void)
22253
22254 static void early_panic(char *msg)
22255 {
22256- early_printk(msg);
22257- panic(msg);
22258+ early_printk("%s", msg);
22259+ panic("%s", msg);
22260 }
22261
22262 static int userdef __initdata;
22263diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
22264index a62536a..8444df4 100644
22265--- a/arch/x86/kernel/early_printk.c
22266+++ b/arch/x86/kernel/early_printk.c
22267@@ -7,6 +7,7 @@
22268 #include <linux/pci_regs.h>
22269 #include <linux/pci_ids.h>
22270 #include <linux/errno.h>
22271+#include <linux/sched.h>
22272 #include <asm/io.h>
22273 #include <asm/processor.h>
22274 #include <asm/fcntl.h>
22275diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
22276index 31e2d5b..b31c76d 100644
22277--- a/arch/x86/kernel/entry_32.S
22278+++ b/arch/x86/kernel/entry_32.S
22279@@ -177,13 +177,154 @@
22280 /*CFI_REL_OFFSET gs, PT_GS*/
22281 .endm
22282 .macro SET_KERNEL_GS reg
22283+
22284+#ifdef CONFIG_CC_STACKPROTECTOR
22285 movl $(__KERNEL_STACK_CANARY), \reg
22286+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
22287+ movl $(__USER_DS), \reg
22288+#else
22289+ xorl \reg, \reg
22290+#endif
22291+
22292 movl \reg, %gs
22293 .endm
22294
22295 #endif /* CONFIG_X86_32_LAZY_GS */
22296
22297-.macro SAVE_ALL
22298+.macro pax_enter_kernel
22299+#ifdef CONFIG_PAX_KERNEXEC
22300+ call pax_enter_kernel
22301+#endif
22302+.endm
22303+
22304+.macro pax_exit_kernel
22305+#ifdef CONFIG_PAX_KERNEXEC
22306+ call pax_exit_kernel
22307+#endif
22308+.endm
22309+
22310+#ifdef CONFIG_PAX_KERNEXEC
22311+ENTRY(pax_enter_kernel)
22312+#ifdef CONFIG_PARAVIRT
22313+ pushl %eax
22314+ pushl %ecx
22315+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
22316+ mov %eax, %esi
22317+#else
22318+ mov %cr0, %esi
22319+#endif
22320+ bts $16, %esi
22321+ jnc 1f
22322+ mov %cs, %esi
22323+ cmp $__KERNEL_CS, %esi
22324+ jz 3f
22325+ ljmp $__KERNEL_CS, $3f
22326+1: ljmp $__KERNEXEC_KERNEL_CS, $2f
22327+2:
22328+#ifdef CONFIG_PARAVIRT
22329+ mov %esi, %eax
22330+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
22331+#else
22332+ mov %esi, %cr0
22333+#endif
22334+3:
22335+#ifdef CONFIG_PARAVIRT
22336+ popl %ecx
22337+ popl %eax
22338+#endif
22339+ ret
22340+ENDPROC(pax_enter_kernel)
22341+
22342+ENTRY(pax_exit_kernel)
22343+#ifdef CONFIG_PARAVIRT
22344+ pushl %eax
22345+ pushl %ecx
22346+#endif
22347+ mov %cs, %esi
22348+ cmp $__KERNEXEC_KERNEL_CS, %esi
22349+ jnz 2f
22350+#ifdef CONFIG_PARAVIRT
22351+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
22352+ mov %eax, %esi
22353+#else
22354+ mov %cr0, %esi
22355+#endif
22356+ btr $16, %esi
22357+ ljmp $__KERNEL_CS, $1f
22358+1:
22359+#ifdef CONFIG_PARAVIRT
22360+ mov %esi, %eax
22361+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
22362+#else
22363+ mov %esi, %cr0
22364+#endif
22365+2:
22366+#ifdef CONFIG_PARAVIRT
22367+ popl %ecx
22368+ popl %eax
22369+#endif
22370+ ret
22371+ENDPROC(pax_exit_kernel)
22372+#endif
22373+
22374+ .macro pax_erase_kstack
22375+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22376+ call pax_erase_kstack
22377+#endif
22378+ .endm
22379+
22380+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22381+/*
22382+ * ebp: thread_info
22383+ */
22384+ENTRY(pax_erase_kstack)
22385+ pushl %edi
22386+ pushl %ecx
22387+ pushl %eax
22388+
22389+ mov TI_lowest_stack(%ebp), %edi
22390+ mov $-0xBEEF, %eax
22391+ std
22392+
22393+1: mov %edi, %ecx
22394+ and $THREAD_SIZE_asm - 1, %ecx
22395+ shr $2, %ecx
22396+ repne scasl
22397+ jecxz 2f
22398+
22399+ cmp $2*16, %ecx
22400+ jc 2f
22401+
22402+ mov $2*16, %ecx
22403+ repe scasl
22404+ jecxz 2f
22405+ jne 1b
22406+
22407+2: cld
22408+ or $2*4, %edi
22409+ mov %esp, %ecx
22410+ sub %edi, %ecx
22411+
22412+ cmp $THREAD_SIZE_asm, %ecx
22413+ jb 3f
22414+ ud2
22415+3:
22416+
22417+ shr $2, %ecx
22418+ rep stosl
22419+
22420+ mov TI_task_thread_sp0(%ebp), %edi
22421+ sub $128, %edi
22422+ mov %edi, TI_lowest_stack(%ebp)
22423+
22424+ popl %eax
22425+ popl %ecx
22426+ popl %edi
22427+ ret
22428+ENDPROC(pax_erase_kstack)
22429+#endif
22430+
22431+.macro __SAVE_ALL _DS
22432 cld
22433 PUSH_GS
22434 pushl_cfi %fs
22435@@ -206,7 +347,7 @@
22436 CFI_REL_OFFSET ecx, 0
22437 pushl_cfi %ebx
22438 CFI_REL_OFFSET ebx, 0
22439- movl $(__USER_DS), %edx
22440+ movl $\_DS, %edx
22441 movl %edx, %ds
22442 movl %edx, %es
22443 movl $(__KERNEL_PERCPU), %edx
22444@@ -214,6 +355,15 @@
22445 SET_KERNEL_GS %edx
22446 .endm
22447
22448+.macro SAVE_ALL
22449+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22450+ __SAVE_ALL __KERNEL_DS
22451+ pax_enter_kernel
22452+#else
22453+ __SAVE_ALL __USER_DS
22454+#endif
22455+.endm
22456+
22457 .macro RESTORE_INT_REGS
22458 popl_cfi %ebx
22459 CFI_RESTORE ebx
22460@@ -297,7 +447,7 @@ ENTRY(ret_from_fork)
22461 popfl_cfi
22462 jmp syscall_exit
22463 CFI_ENDPROC
22464-END(ret_from_fork)
22465+ENDPROC(ret_from_fork)
22466
22467 ENTRY(ret_from_kernel_thread)
22468 CFI_STARTPROC
22469@@ -340,7 +490,15 @@ ret_from_intr:
22470 andl $SEGMENT_RPL_MASK, %eax
22471 #endif
22472 cmpl $USER_RPL, %eax
22473+
22474+#ifdef CONFIG_PAX_KERNEXEC
22475+ jae resume_userspace
22476+
22477+ pax_exit_kernel
22478+ jmp resume_kernel
22479+#else
22480 jb resume_kernel # not returning to v8086 or userspace
22481+#endif
22482
22483 ENTRY(resume_userspace)
22484 LOCKDEP_SYS_EXIT
22485@@ -352,8 +510,8 @@ ENTRY(resume_userspace)
22486 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on
22487 # int/exception return?
22488 jne work_pending
22489- jmp restore_all
22490-END(ret_from_exception)
22491+ jmp restore_all_pax
22492+ENDPROC(ret_from_exception)
22493
22494 #ifdef CONFIG_PREEMPT
22495 ENTRY(resume_kernel)
22496@@ -365,7 +523,7 @@ need_resched:
22497 jz restore_all
22498 call preempt_schedule_irq
22499 jmp need_resched
22500-END(resume_kernel)
22501+ENDPROC(resume_kernel)
22502 #endif
22503 CFI_ENDPROC
22504
22505@@ -395,30 +553,45 @@ sysenter_past_esp:
22506 /*CFI_REL_OFFSET cs, 0*/
22507 /*
22508 * Push current_thread_info()->sysenter_return to the stack.
22509- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
22510- * pushed above; +8 corresponds to copy_thread's esp0 setting.
22511 */
22512- pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
22513+ pushl_cfi $0
22514 CFI_REL_OFFSET eip, 0
22515
22516 pushl_cfi %eax
22517 SAVE_ALL
22518+ GET_THREAD_INFO(%ebp)
22519+ movl TI_sysenter_return(%ebp),%ebp
22520+ movl %ebp,PT_EIP(%esp)
22521 ENABLE_INTERRUPTS(CLBR_NONE)
22522
22523 /*
22524 * Load the potential sixth argument from user stack.
22525 * Careful about security.
22526 */
22527+ movl PT_OLDESP(%esp),%ebp
22528+
22529+#ifdef CONFIG_PAX_MEMORY_UDEREF
22530+ mov PT_OLDSS(%esp),%ds
22531+1: movl %ds:(%ebp),%ebp
22532+ push %ss
22533+ pop %ds
22534+#else
22535 cmpl $__PAGE_OFFSET-3,%ebp
22536 jae syscall_fault
22537 ASM_STAC
22538 1: movl (%ebp),%ebp
22539 ASM_CLAC
22540+#endif
22541+
22542 movl %ebp,PT_EBP(%esp)
22543 _ASM_EXTABLE(1b,syscall_fault)
22544
22545 GET_THREAD_INFO(%ebp)
22546
22547+#ifdef CONFIG_PAX_RANDKSTACK
22548+ pax_erase_kstack
22549+#endif
22550+
22551 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22552 jnz sysenter_audit
22553 sysenter_do_call:
22554@@ -434,12 +607,24 @@ sysenter_after_call:
22555 testl $_TIF_ALLWORK_MASK, %ecx
22556 jne sysexit_audit
22557 sysenter_exit:
22558+
22559+#ifdef CONFIG_PAX_RANDKSTACK
22560+ pushl_cfi %eax
22561+ movl %esp, %eax
22562+ call pax_randomize_kstack
22563+ popl_cfi %eax
22564+#endif
22565+
22566+ pax_erase_kstack
22567+
22568 /* if something modifies registers it must also disable sysexit */
22569 movl PT_EIP(%esp), %edx
22570 movl PT_OLDESP(%esp), %ecx
22571 xorl %ebp,%ebp
22572 TRACE_IRQS_ON
22573 1: mov PT_FS(%esp), %fs
22574+2: mov PT_DS(%esp), %ds
22575+3: mov PT_ES(%esp), %es
22576 PTGS_TO_GS
22577 ENABLE_INTERRUPTS_SYSEXIT
22578
22579@@ -453,6 +638,9 @@ sysenter_audit:
22580 pushl_cfi PT_ESI(%esp) /* a3: 5th arg */
22581 pushl_cfi PT_EDX+4(%esp) /* a2: 4th arg */
22582 call __audit_syscall_entry
22583+
22584+ pax_erase_kstack
22585+
22586 popl_cfi %ecx /* get that remapped edx off the stack */
22587 popl_cfi %ecx /* get that remapped esi off the stack */
22588 movl PT_EAX(%esp),%eax /* reload syscall number */
22589@@ -479,10 +667,16 @@ sysexit_audit:
22590
22591 CFI_ENDPROC
22592 .pushsection .fixup,"ax"
22593-2: movl $0,PT_FS(%esp)
22594+4: movl $0,PT_FS(%esp)
22595+ jmp 1b
22596+5: movl $0,PT_DS(%esp)
22597+ jmp 1b
22598+6: movl $0,PT_ES(%esp)
22599 jmp 1b
22600 .popsection
22601- _ASM_EXTABLE(1b,2b)
22602+ _ASM_EXTABLE(1b,4b)
22603+ _ASM_EXTABLE(2b,5b)
22604+ _ASM_EXTABLE(3b,6b)
22605 PTGS_TO_GS_EX
22606 ENDPROC(ia32_sysenter_target)
22607
22608@@ -493,6 +687,11 @@ ENTRY(system_call)
22609 pushl_cfi %eax # save orig_eax
22610 SAVE_ALL
22611 GET_THREAD_INFO(%ebp)
22612+
22613+#ifdef CONFIG_PAX_RANDKSTACK
22614+ pax_erase_kstack
22615+#endif
22616+
22617 # system call tracing in operation / emulation
22618 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22619 jnz syscall_trace_entry
22620@@ -512,6 +711,15 @@ syscall_exit:
22621 testl $_TIF_ALLWORK_MASK, %ecx # current->work
22622 jne syscall_exit_work
22623
22624+restore_all_pax:
22625+
22626+#ifdef CONFIG_PAX_RANDKSTACK
22627+ movl %esp, %eax
22628+ call pax_randomize_kstack
22629+#endif
22630+
22631+ pax_erase_kstack
22632+
22633 restore_all:
22634 TRACE_IRQS_IRET
22635 restore_all_notrace:
22636@@ -566,14 +774,34 @@ ldt_ss:
22637 * compensating for the offset by changing to the ESPFIX segment with
22638 * a base address that matches for the difference.
22639 */
22640-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
22641+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
22642 mov %esp, %edx /* load kernel esp */
22643 mov PT_OLDESP(%esp), %eax /* load userspace esp */
22644 mov %dx, %ax /* eax: new kernel esp */
22645 sub %eax, %edx /* offset (low word is 0) */
22646+#ifdef CONFIG_SMP
22647+ movl PER_CPU_VAR(cpu_number), %ebx
22648+ shll $PAGE_SHIFT_asm, %ebx
22649+ addl $cpu_gdt_table, %ebx
22650+#else
22651+ movl $cpu_gdt_table, %ebx
22652+#endif
22653 shr $16, %edx
22654- mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
22655- mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
22656+
22657+#ifdef CONFIG_PAX_KERNEXEC
22658+ mov %cr0, %esi
22659+ btr $16, %esi
22660+ mov %esi, %cr0
22661+#endif
22662+
22663+ mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
22664+ mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
22665+
22666+#ifdef CONFIG_PAX_KERNEXEC
22667+ bts $16, %esi
22668+ mov %esi, %cr0
22669+#endif
22670+
22671 pushl_cfi $__ESPFIX_SS
22672 pushl_cfi %eax /* new kernel esp */
22673 /* Disable interrupts, but do not irqtrace this section: we
22674@@ -603,20 +831,18 @@ work_resched:
22675 movl TI_flags(%ebp), %ecx
22676 andl $_TIF_WORK_MASK, %ecx # is there any work to be done other
22677 # than syscall tracing?
22678- jz restore_all
22679+ jz restore_all_pax
22680 testb $_TIF_NEED_RESCHED, %cl
22681 jnz work_resched
22682
22683 work_notifysig: # deal with pending signals and
22684 # notify-resume requests
22685+ movl %esp, %eax
22686 #ifdef CONFIG_VM86
22687 testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
22688- movl %esp, %eax
22689 jne work_notifysig_v86 # returning to kernel-space or
22690 # vm86-space
22691 1:
22692-#else
22693- movl %esp, %eax
22694 #endif
22695 TRACE_IRQS_ON
22696 ENABLE_INTERRUPTS(CLBR_NONE)
22697@@ -637,7 +863,7 @@ work_notifysig_v86:
22698 movl %eax, %esp
22699 jmp 1b
22700 #endif
22701-END(work_pending)
22702+ENDPROC(work_pending)
22703
22704 # perform syscall exit tracing
22705 ALIGN
22706@@ -645,11 +871,14 @@ syscall_trace_entry:
22707 movl $-ENOSYS,PT_EAX(%esp)
22708 movl %esp, %eax
22709 call syscall_trace_enter
22710+
22711+ pax_erase_kstack
22712+
22713 /* What it returned is what we'll actually use. */
22714 cmpl $(NR_syscalls), %eax
22715 jnae syscall_call
22716 jmp syscall_exit
22717-END(syscall_trace_entry)
22718+ENDPROC(syscall_trace_entry)
22719
22720 # perform syscall exit tracing
22721 ALIGN
22722@@ -662,26 +891,30 @@ syscall_exit_work:
22723 movl %esp, %eax
22724 call syscall_trace_leave
22725 jmp resume_userspace
22726-END(syscall_exit_work)
22727+ENDPROC(syscall_exit_work)
22728 CFI_ENDPROC
22729
22730 RING0_INT_FRAME # can't unwind into user space anyway
22731 syscall_fault:
22732+#ifdef CONFIG_PAX_MEMORY_UDEREF
22733+ push %ss
22734+ pop %ds
22735+#endif
22736 ASM_CLAC
22737 GET_THREAD_INFO(%ebp)
22738 movl $-EFAULT,PT_EAX(%esp)
22739 jmp resume_userspace
22740-END(syscall_fault)
22741+ENDPROC(syscall_fault)
22742
22743 syscall_badsys:
22744 movl $-ENOSYS,%eax
22745 jmp syscall_after_call
22746-END(syscall_badsys)
22747+ENDPROC(syscall_badsys)
22748
22749 sysenter_badsys:
22750 movl $-ENOSYS,%eax
22751 jmp sysenter_after_call
22752-END(sysenter_badsys)
22753+ENDPROC(sysenter_badsys)
22754 CFI_ENDPROC
22755
22756 .macro FIXUP_ESPFIX_STACK
22757@@ -694,8 +927,15 @@ END(sysenter_badsys)
22758 */
22759 #ifdef CONFIG_X86_ESPFIX32
22760 /* fixup the stack */
22761- mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
22762- mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
22763+#ifdef CONFIG_SMP
22764+ movl PER_CPU_VAR(cpu_number), %ebx
22765+ shll $PAGE_SHIFT_asm, %ebx
22766+ addl $cpu_gdt_table, %ebx
22767+#else
22768+ movl $cpu_gdt_table, %ebx
22769+#endif
22770+ mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
22771+ mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
22772 shl $16, %eax
22773 addl %esp, %eax /* the adjusted stack pointer */
22774 pushl_cfi $__KERNEL_DS
22775@@ -751,7 +991,7 @@ vector=vector+1
22776 .endr
22777 2: jmp common_interrupt
22778 .endr
22779-END(irq_entries_start)
22780+ENDPROC(irq_entries_start)
22781
22782 .previous
22783 END(interrupt)
22784@@ -808,7 +1048,7 @@ ENTRY(coprocessor_error)
22785 pushl_cfi $do_coprocessor_error
22786 jmp error_code
22787 CFI_ENDPROC
22788-END(coprocessor_error)
22789+ENDPROC(coprocessor_error)
22790
22791 ENTRY(simd_coprocessor_error)
22792 RING0_INT_FRAME
22793@@ -821,7 +1061,7 @@ ENTRY(simd_coprocessor_error)
22794 .section .altinstructions,"a"
22795 altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
22796 .previous
22797-.section .altinstr_replacement,"ax"
22798+.section .altinstr_replacement,"a"
22799 663: pushl $do_simd_coprocessor_error
22800 664:
22801 .previous
22802@@ -830,7 +1070,7 @@ ENTRY(simd_coprocessor_error)
22803 #endif
22804 jmp error_code
22805 CFI_ENDPROC
22806-END(simd_coprocessor_error)
22807+ENDPROC(simd_coprocessor_error)
22808
22809 ENTRY(device_not_available)
22810 RING0_INT_FRAME
22811@@ -839,18 +1079,18 @@ ENTRY(device_not_available)
22812 pushl_cfi $do_device_not_available
22813 jmp error_code
22814 CFI_ENDPROC
22815-END(device_not_available)
22816+ENDPROC(device_not_available)
22817
22818 #ifdef CONFIG_PARAVIRT
22819 ENTRY(native_iret)
22820 iret
22821 _ASM_EXTABLE(native_iret, iret_exc)
22822-END(native_iret)
22823+ENDPROC(native_iret)
22824
22825 ENTRY(native_irq_enable_sysexit)
22826 sti
22827 sysexit
22828-END(native_irq_enable_sysexit)
22829+ENDPROC(native_irq_enable_sysexit)
22830 #endif
22831
22832 ENTRY(overflow)
22833@@ -860,7 +1100,7 @@ ENTRY(overflow)
22834 pushl_cfi $do_overflow
22835 jmp error_code
22836 CFI_ENDPROC
22837-END(overflow)
22838+ENDPROC(overflow)
22839
22840 ENTRY(bounds)
22841 RING0_INT_FRAME
22842@@ -869,7 +1109,7 @@ ENTRY(bounds)
22843 pushl_cfi $do_bounds
22844 jmp error_code
22845 CFI_ENDPROC
22846-END(bounds)
22847+ENDPROC(bounds)
22848
22849 ENTRY(invalid_op)
22850 RING0_INT_FRAME
22851@@ -878,7 +1118,7 @@ ENTRY(invalid_op)
22852 pushl_cfi $do_invalid_op
22853 jmp error_code
22854 CFI_ENDPROC
22855-END(invalid_op)
22856+ENDPROC(invalid_op)
22857
22858 ENTRY(coprocessor_segment_overrun)
22859 RING0_INT_FRAME
22860@@ -887,7 +1127,7 @@ ENTRY(coprocessor_segment_overrun)
22861 pushl_cfi $do_coprocessor_segment_overrun
22862 jmp error_code
22863 CFI_ENDPROC
22864-END(coprocessor_segment_overrun)
22865+ENDPROC(coprocessor_segment_overrun)
22866
22867 ENTRY(invalid_TSS)
22868 RING0_EC_FRAME
22869@@ -895,7 +1135,7 @@ ENTRY(invalid_TSS)
22870 pushl_cfi $do_invalid_TSS
22871 jmp error_code
22872 CFI_ENDPROC
22873-END(invalid_TSS)
22874+ENDPROC(invalid_TSS)
22875
22876 ENTRY(segment_not_present)
22877 RING0_EC_FRAME
22878@@ -903,7 +1143,7 @@ ENTRY(segment_not_present)
22879 pushl_cfi $do_segment_not_present
22880 jmp error_code
22881 CFI_ENDPROC
22882-END(segment_not_present)
22883+ENDPROC(segment_not_present)
22884
22885 ENTRY(stack_segment)
22886 RING0_EC_FRAME
22887@@ -911,7 +1151,7 @@ ENTRY(stack_segment)
22888 pushl_cfi $do_stack_segment
22889 jmp error_code
22890 CFI_ENDPROC
22891-END(stack_segment)
22892+ENDPROC(stack_segment)
22893
22894 ENTRY(alignment_check)
22895 RING0_EC_FRAME
22896@@ -919,7 +1159,7 @@ ENTRY(alignment_check)
22897 pushl_cfi $do_alignment_check
22898 jmp error_code
22899 CFI_ENDPROC
22900-END(alignment_check)
22901+ENDPROC(alignment_check)
22902
22903 ENTRY(divide_error)
22904 RING0_INT_FRAME
22905@@ -928,7 +1168,7 @@ ENTRY(divide_error)
22906 pushl_cfi $do_divide_error
22907 jmp error_code
22908 CFI_ENDPROC
22909-END(divide_error)
22910+ENDPROC(divide_error)
22911
22912 #ifdef CONFIG_X86_MCE
22913 ENTRY(machine_check)
22914@@ -938,7 +1178,7 @@ ENTRY(machine_check)
22915 pushl_cfi machine_check_vector
22916 jmp error_code
22917 CFI_ENDPROC
22918-END(machine_check)
22919+ENDPROC(machine_check)
22920 #endif
22921
22922 ENTRY(spurious_interrupt_bug)
22923@@ -948,7 +1188,7 @@ ENTRY(spurious_interrupt_bug)
22924 pushl_cfi $do_spurious_interrupt_bug
22925 jmp error_code
22926 CFI_ENDPROC
22927-END(spurious_interrupt_bug)
22928+ENDPROC(spurious_interrupt_bug)
22929
22930 #ifdef CONFIG_XEN
22931 /* Xen doesn't set %esp to be precisely what the normal sysenter
22932@@ -1057,7 +1297,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
22933
22934 ENTRY(mcount)
22935 ret
22936-END(mcount)
22937+ENDPROC(mcount)
22938
22939 ENTRY(ftrace_caller)
22940 pushl %eax
22941@@ -1087,7 +1327,7 @@ ftrace_graph_call:
22942 .globl ftrace_stub
22943 ftrace_stub:
22944 ret
22945-END(ftrace_caller)
22946+ENDPROC(ftrace_caller)
22947
22948 ENTRY(ftrace_regs_caller)
22949 pushf /* push flags before compare (in cs location) */
22950@@ -1185,7 +1425,7 @@ trace:
22951 popl %ecx
22952 popl %eax
22953 jmp ftrace_stub
22954-END(mcount)
22955+ENDPROC(mcount)
22956 #endif /* CONFIG_DYNAMIC_FTRACE */
22957 #endif /* CONFIG_FUNCTION_TRACER */
22958
22959@@ -1203,7 +1443,7 @@ ENTRY(ftrace_graph_caller)
22960 popl %ecx
22961 popl %eax
22962 ret
22963-END(ftrace_graph_caller)
22964+ENDPROC(ftrace_graph_caller)
22965
22966 .globl return_to_handler
22967 return_to_handler:
22968@@ -1264,15 +1504,18 @@ error_code:
22969 movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
22970 REG_TO_PTGS %ecx
22971 SET_KERNEL_GS %ecx
22972- movl $(__USER_DS), %ecx
22973+ movl $(__KERNEL_DS), %ecx
22974 movl %ecx, %ds
22975 movl %ecx, %es
22976+
22977+ pax_enter_kernel
22978+
22979 TRACE_IRQS_OFF
22980 movl %esp,%eax # pt_regs pointer
22981 call *%edi
22982 jmp ret_from_exception
22983 CFI_ENDPROC
22984-END(page_fault)
22985+ENDPROC(page_fault)
22986
22987 /*
22988 * Debug traps and NMI can happen at the one SYSENTER instruction
22989@@ -1315,7 +1558,7 @@ debug_stack_correct:
22990 call do_debug
22991 jmp ret_from_exception
22992 CFI_ENDPROC
22993-END(debug)
22994+ENDPROC(debug)
22995
22996 /*
22997 * NMI is doubly nasty. It can happen _while_ we're handling
22998@@ -1355,6 +1598,9 @@ nmi_stack_correct:
22999 xorl %edx,%edx # zero error code
23000 movl %esp,%eax # pt_regs pointer
23001 call do_nmi
23002+
23003+ pax_exit_kernel
23004+
23005 jmp restore_all_notrace
23006 CFI_ENDPROC
23007
23008@@ -1392,13 +1638,16 @@ nmi_espfix_stack:
23009 FIXUP_ESPFIX_STACK # %eax == %esp
23010 xorl %edx,%edx # zero error code
23011 call do_nmi
23012+
23013+ pax_exit_kernel
23014+
23015 RESTORE_REGS
23016 lss 12+4(%esp), %esp # back to espfix stack
23017 CFI_ADJUST_CFA_OFFSET -24
23018 jmp irq_return
23019 #endif
23020 CFI_ENDPROC
23021-END(nmi)
23022+ENDPROC(nmi)
23023
23024 ENTRY(int3)
23025 RING0_INT_FRAME
23026@@ -1411,14 +1660,14 @@ ENTRY(int3)
23027 call do_int3
23028 jmp ret_from_exception
23029 CFI_ENDPROC
23030-END(int3)
23031+ENDPROC(int3)
23032
23033 ENTRY(general_protection)
23034 RING0_EC_FRAME
23035 pushl_cfi $do_general_protection
23036 jmp error_code
23037 CFI_ENDPROC
23038-END(general_protection)
23039+ENDPROC(general_protection)
23040
23041 #ifdef CONFIG_KVM_GUEST
23042 ENTRY(async_page_fault)
23043@@ -1427,6 +1676,6 @@ ENTRY(async_page_fault)
23044 pushl_cfi $do_async_page_fault
23045 jmp error_code
23046 CFI_ENDPROC
23047-END(async_page_fault)
23048+ENDPROC(async_page_fault)
23049 #endif
23050
23051diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
23052index f0095a7..ec77893 100644
23053--- a/arch/x86/kernel/entry_64.S
23054+++ b/arch/x86/kernel/entry_64.S
23055@@ -59,6 +59,8 @@
23056 #include <asm/smap.h>
23057 #include <asm/pgtable_types.h>
23058 #include <linux/err.h>
23059+#include <asm/pgtable.h>
23060+#include <asm/alternative-asm.h>
23061
23062 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
23063 #include <linux/elf-em.h>
23064@@ -81,6 +83,431 @@ ENTRY(native_usergs_sysret64)
23065 ENDPROC(native_usergs_sysret64)
23066 #endif /* CONFIG_PARAVIRT */
23067
23068+ .macro ljmpq sel, off
23069+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
23070+ .byte 0x48; ljmp *1234f(%rip)
23071+ .pushsection .rodata
23072+ .align 16
23073+ 1234: .quad \off; .word \sel
23074+ .popsection
23075+#else
23076+ pushq $\sel
23077+ pushq $\off
23078+ lretq
23079+#endif
23080+ .endm
23081+
23082+ .macro pax_enter_kernel
23083+ pax_set_fptr_mask
23084+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23085+ call pax_enter_kernel
23086+#endif
23087+ .endm
23088+
23089+ .macro pax_exit_kernel
23090+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23091+ call pax_exit_kernel
23092+#endif
23093+
23094+ .endm
23095+
23096+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23097+ENTRY(pax_enter_kernel)
23098+ pushq %rdi
23099+
23100+#ifdef CONFIG_PARAVIRT
23101+ PV_SAVE_REGS(CLBR_RDI)
23102+#endif
23103+
23104+#ifdef CONFIG_PAX_KERNEXEC
23105+ GET_CR0_INTO_RDI
23106+ bts $16,%rdi
23107+ jnc 3f
23108+ mov %cs,%edi
23109+ cmp $__KERNEL_CS,%edi
23110+ jnz 2f
23111+1:
23112+#endif
23113+
23114+#ifdef CONFIG_PAX_MEMORY_UDEREF
23115+ 661: jmp 111f
23116+ .pushsection .altinstr_replacement, "a"
23117+ 662: ASM_NOP2
23118+ .popsection
23119+ .pushsection .altinstructions, "a"
23120+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23121+ .popsection
23122+ GET_CR3_INTO_RDI
23123+ cmp $0,%dil
23124+ jnz 112f
23125+ mov $__KERNEL_DS,%edi
23126+ mov %edi,%ss
23127+ jmp 111f
23128+112: cmp $1,%dil
23129+ jz 113f
23130+ ud2
23131+113: sub $4097,%rdi
23132+ bts $63,%rdi
23133+ SET_RDI_INTO_CR3
23134+ mov $__UDEREF_KERNEL_DS,%edi
23135+ mov %edi,%ss
23136+111:
23137+#endif
23138+
23139+#ifdef CONFIG_PARAVIRT
23140+ PV_RESTORE_REGS(CLBR_RDI)
23141+#endif
23142+
23143+ popq %rdi
23144+ pax_force_retaddr
23145+ retq
23146+
23147+#ifdef CONFIG_PAX_KERNEXEC
23148+2: ljmpq __KERNEL_CS,1b
23149+3: ljmpq __KERNEXEC_KERNEL_CS,4f
23150+4: SET_RDI_INTO_CR0
23151+ jmp 1b
23152+#endif
23153+ENDPROC(pax_enter_kernel)
23154+
23155+ENTRY(pax_exit_kernel)
23156+ pushq %rdi
23157+
23158+#ifdef CONFIG_PARAVIRT
23159+ PV_SAVE_REGS(CLBR_RDI)
23160+#endif
23161+
23162+#ifdef CONFIG_PAX_KERNEXEC
23163+ mov %cs,%rdi
23164+ cmp $__KERNEXEC_KERNEL_CS,%edi
23165+ jz 2f
23166+ GET_CR0_INTO_RDI
23167+ bts $16,%rdi
23168+ jnc 4f
23169+1:
23170+#endif
23171+
23172+#ifdef CONFIG_PAX_MEMORY_UDEREF
23173+ 661: jmp 111f
23174+ .pushsection .altinstr_replacement, "a"
23175+ 662: ASM_NOP2
23176+ .popsection
23177+ .pushsection .altinstructions, "a"
23178+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23179+ .popsection
23180+ mov %ss,%edi
23181+ cmp $__UDEREF_KERNEL_DS,%edi
23182+ jnz 111f
23183+ GET_CR3_INTO_RDI
23184+ cmp $0,%dil
23185+ jz 112f
23186+ ud2
23187+112: add $4097,%rdi
23188+ bts $63,%rdi
23189+ SET_RDI_INTO_CR3
23190+ mov $__KERNEL_DS,%edi
23191+ mov %edi,%ss
23192+111:
23193+#endif
23194+
23195+#ifdef CONFIG_PARAVIRT
23196+ PV_RESTORE_REGS(CLBR_RDI);
23197+#endif
23198+
23199+ popq %rdi
23200+ pax_force_retaddr
23201+ retq
23202+
23203+#ifdef CONFIG_PAX_KERNEXEC
23204+2: GET_CR0_INTO_RDI
23205+ btr $16,%rdi
23206+ jnc 4f
23207+ ljmpq __KERNEL_CS,3f
23208+3: SET_RDI_INTO_CR0
23209+ jmp 1b
23210+4: ud2
23211+ jmp 4b
23212+#endif
23213+ENDPROC(pax_exit_kernel)
23214+#endif
23215+
23216+ .macro pax_enter_kernel_user
23217+ pax_set_fptr_mask
23218+#ifdef CONFIG_PAX_MEMORY_UDEREF
23219+ call pax_enter_kernel_user
23220+#endif
23221+ .endm
23222+
23223+ .macro pax_exit_kernel_user
23224+#ifdef CONFIG_PAX_MEMORY_UDEREF
23225+ call pax_exit_kernel_user
23226+#endif
23227+#ifdef CONFIG_PAX_RANDKSTACK
23228+ pushq %rax
23229+ pushq %r11
23230+ call pax_randomize_kstack
23231+ popq %r11
23232+ popq %rax
23233+#endif
23234+ .endm
23235+
23236+#ifdef CONFIG_PAX_MEMORY_UDEREF
23237+ENTRY(pax_enter_kernel_user)
23238+ pushq %rdi
23239+ pushq %rbx
23240+
23241+#ifdef CONFIG_PARAVIRT
23242+ PV_SAVE_REGS(CLBR_RDI)
23243+#endif
23244+
23245+ 661: jmp 111f
23246+ .pushsection .altinstr_replacement, "a"
23247+ 662: ASM_NOP2
23248+ .popsection
23249+ .pushsection .altinstructions, "a"
23250+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23251+ .popsection
23252+ GET_CR3_INTO_RDI
23253+ cmp $1,%dil
23254+ jnz 4f
23255+ sub $4097,%rdi
23256+ bts $63,%rdi
23257+ SET_RDI_INTO_CR3
23258+ jmp 3f
23259+111:
23260+
23261+ GET_CR3_INTO_RDI
23262+ mov %rdi,%rbx
23263+ add $__START_KERNEL_map,%rbx
23264+ sub phys_base(%rip),%rbx
23265+
23266+#ifdef CONFIG_PARAVIRT
23267+ cmpl $0, pv_info+PARAVIRT_enabled
23268+ jz 1f
23269+ pushq %rdi
23270+ i = 0
23271+ .rept USER_PGD_PTRS
23272+ mov i*8(%rbx),%rsi
23273+ mov $0,%sil
23274+ lea i*8(%rbx),%rdi
23275+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23276+ i = i + 1
23277+ .endr
23278+ popq %rdi
23279+ jmp 2f
23280+1:
23281+#endif
23282+
23283+ i = 0
23284+ .rept USER_PGD_PTRS
23285+ movb $0,i*8(%rbx)
23286+ i = i + 1
23287+ .endr
23288+
23289+2: SET_RDI_INTO_CR3
23290+
23291+#ifdef CONFIG_PAX_KERNEXEC
23292+ GET_CR0_INTO_RDI
23293+ bts $16,%rdi
23294+ SET_RDI_INTO_CR0
23295+#endif
23296+
23297+3:
23298+
23299+#ifdef CONFIG_PARAVIRT
23300+ PV_RESTORE_REGS(CLBR_RDI)
23301+#endif
23302+
23303+ popq %rbx
23304+ popq %rdi
23305+ pax_force_retaddr
23306+ retq
23307+4: ud2
23308+ENDPROC(pax_enter_kernel_user)
23309+
23310+ENTRY(pax_exit_kernel_user)
23311+ pushq %rdi
23312+ pushq %rbx
23313+
23314+#ifdef CONFIG_PARAVIRT
23315+ PV_SAVE_REGS(CLBR_RDI)
23316+#endif
23317+
23318+ GET_CR3_INTO_RDI
23319+ 661: jmp 1f
23320+ .pushsection .altinstr_replacement, "a"
23321+ 662: ASM_NOP2
23322+ .popsection
23323+ .pushsection .altinstructions, "a"
23324+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23325+ .popsection
23326+ cmp $0,%dil
23327+ jnz 3f
23328+ add $4097,%rdi
23329+ bts $63,%rdi
23330+ SET_RDI_INTO_CR3
23331+ jmp 2f
23332+1:
23333+
23334+ mov %rdi,%rbx
23335+
23336+#ifdef CONFIG_PAX_KERNEXEC
23337+ GET_CR0_INTO_RDI
23338+ btr $16,%rdi
23339+ jnc 3f
23340+ SET_RDI_INTO_CR0
23341+#endif
23342+
23343+ add $__START_KERNEL_map,%rbx
23344+ sub phys_base(%rip),%rbx
23345+
23346+#ifdef CONFIG_PARAVIRT
23347+ cmpl $0, pv_info+PARAVIRT_enabled
23348+ jz 1f
23349+ i = 0
23350+ .rept USER_PGD_PTRS
23351+ mov i*8(%rbx),%rsi
23352+ mov $0x67,%sil
23353+ lea i*8(%rbx),%rdi
23354+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23355+ i = i + 1
23356+ .endr
23357+ jmp 2f
23358+1:
23359+#endif
23360+
23361+ i = 0
23362+ .rept USER_PGD_PTRS
23363+ movb $0x67,i*8(%rbx)
23364+ i = i + 1
23365+ .endr
23366+2:
23367+
23368+#ifdef CONFIG_PARAVIRT
23369+ PV_RESTORE_REGS(CLBR_RDI)
23370+#endif
23371+
23372+ popq %rbx
23373+ popq %rdi
23374+ pax_force_retaddr
23375+ retq
23376+3: ud2
23377+ENDPROC(pax_exit_kernel_user)
23378+#endif
23379+
23380+ .macro pax_enter_kernel_nmi
23381+ pax_set_fptr_mask
23382+
23383+#ifdef CONFIG_PAX_KERNEXEC
23384+ GET_CR0_INTO_RDI
23385+ bts $16,%rdi
23386+ jc 110f
23387+ SET_RDI_INTO_CR0
23388+ or $2,%ebx
23389+110:
23390+#endif
23391+
23392+#ifdef CONFIG_PAX_MEMORY_UDEREF
23393+ 661: jmp 111f
23394+ .pushsection .altinstr_replacement, "a"
23395+ 662: ASM_NOP2
23396+ .popsection
23397+ .pushsection .altinstructions, "a"
23398+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23399+ .popsection
23400+ GET_CR3_INTO_RDI
23401+ cmp $0,%dil
23402+ jz 111f
23403+ sub $4097,%rdi
23404+ or $4,%ebx
23405+ bts $63,%rdi
23406+ SET_RDI_INTO_CR3
23407+ mov $__UDEREF_KERNEL_DS,%edi
23408+ mov %edi,%ss
23409+111:
23410+#endif
23411+ .endm
23412+
23413+ .macro pax_exit_kernel_nmi
23414+#ifdef CONFIG_PAX_KERNEXEC
23415+ btr $1,%ebx
23416+ jnc 110f
23417+ GET_CR0_INTO_RDI
23418+ btr $16,%rdi
23419+ SET_RDI_INTO_CR0
23420+110:
23421+#endif
23422+
23423+#ifdef CONFIG_PAX_MEMORY_UDEREF
23424+ btr $2,%ebx
23425+ jnc 111f
23426+ GET_CR3_INTO_RDI
23427+ add $4097,%rdi
23428+ bts $63,%rdi
23429+ SET_RDI_INTO_CR3
23430+ mov $__KERNEL_DS,%edi
23431+ mov %edi,%ss
23432+111:
23433+#endif
23434+ .endm
23435+
23436+ .macro pax_erase_kstack
23437+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23438+ call pax_erase_kstack
23439+#endif
23440+ .endm
23441+
23442+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23443+ENTRY(pax_erase_kstack)
23444+ pushq %rdi
23445+ pushq %rcx
23446+ pushq %rax
23447+ pushq %r11
23448+
23449+ GET_THREAD_INFO(%r11)
23450+ mov TI_lowest_stack(%r11), %rdi
23451+ mov $-0xBEEF, %rax
23452+ std
23453+
23454+1: mov %edi, %ecx
23455+ and $THREAD_SIZE_asm - 1, %ecx
23456+ shr $3, %ecx
23457+ repne scasq
23458+ jecxz 2f
23459+
23460+ cmp $2*8, %ecx
23461+ jc 2f
23462+
23463+ mov $2*8, %ecx
23464+ repe scasq
23465+ jecxz 2f
23466+ jne 1b
23467+
23468+2: cld
23469+ or $2*8, %rdi
23470+ mov %esp, %ecx
23471+ sub %edi, %ecx
23472+
23473+ cmp $THREAD_SIZE_asm, %rcx
23474+ jb 3f
23475+ ud2
23476+3:
23477+
23478+ shr $3, %ecx
23479+ rep stosq
23480+
23481+ mov TI_task_thread_sp0(%r11), %rdi
23482+ sub $256, %rdi
23483+ mov %rdi, TI_lowest_stack(%r11)
23484+
23485+ popq %r11
23486+ popq %rax
23487+ popq %rcx
23488+ popq %rdi
23489+ pax_force_retaddr
23490+ ret
23491+ENDPROC(pax_erase_kstack)
23492+#endif
23493
23494 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
23495 #ifdef CONFIG_TRACE_IRQFLAGS
23496@@ -117,7 +544,7 @@ ENDPROC(native_usergs_sysret64)
23497 .endm
23498
23499 .macro TRACE_IRQS_IRETQ_DEBUG offset=ARGOFFSET
23500- bt $9,EFLAGS-\offset(%rsp) /* interrupts off? */
23501+ bt $X86_EFLAGS_IF_BIT,EFLAGS-\offset(%rsp) /* interrupts off? */
23502 jnc 1f
23503 TRACE_IRQS_ON_DEBUG
23504 1:
23505@@ -243,9 +670,52 @@ ENTRY(save_paranoid)
23506 js 1f /* negative -> in kernel */
23507 SWAPGS
23508 xorl %ebx,%ebx
23509-1: ret
23510+1:
23511+#ifdef CONFIG_PAX_MEMORY_UDEREF
23512+ testb $3, CS+8(%rsp)
23513+ jnz 1f
23514+ pax_enter_kernel
23515+ jmp 2f
23516+1: pax_enter_kernel_user
23517+2:
23518+#else
23519+ pax_enter_kernel
23520+#endif
23521+ pax_force_retaddr
23522+ ret
23523 CFI_ENDPROC
23524-END(save_paranoid)
23525+ENDPROC(save_paranoid)
23526+
23527+ENTRY(save_paranoid_nmi)
23528+ XCPT_FRAME 1 RDI+8
23529+ cld
23530+ movq_cfi rdi, RDI+8
23531+ movq_cfi rsi, RSI+8
23532+ movq_cfi rdx, RDX+8
23533+ movq_cfi rcx, RCX+8
23534+ movq_cfi rax, RAX+8
23535+ movq_cfi r8, R8+8
23536+ movq_cfi r9, R9+8
23537+ movq_cfi r10, R10+8
23538+ movq_cfi r11, R11+8
23539+ movq_cfi rbx, RBX+8
23540+ movq_cfi rbp, RBP+8
23541+ movq_cfi r12, R12+8
23542+ movq_cfi r13, R13+8
23543+ movq_cfi r14, R14+8
23544+ movq_cfi r15, R15+8
23545+ movl $1,%ebx
23546+ movl $MSR_GS_BASE,%ecx
23547+ rdmsr
23548+ testl %edx,%edx
23549+ js 1f /* negative -> in kernel */
23550+ SWAPGS
23551+ xorl %ebx,%ebx
23552+1: pax_enter_kernel_nmi
23553+ pax_force_retaddr
23554+ ret
23555+ CFI_ENDPROC
23556+ENDPROC(save_paranoid_nmi)
23557
23558 /*
23559 * A newly forked process directly context switches into this address.
23560@@ -266,7 +736,7 @@ ENTRY(ret_from_fork)
23561
23562 RESTORE_REST
23563
23564- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23565+ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23566 jz 1f
23567
23568 /*
23569@@ -279,15 +749,13 @@ ENTRY(ret_from_fork)
23570 jmp int_ret_from_sys_call
23571
23572 1:
23573- subq $REST_SKIP, %rsp # leave space for volatiles
23574- CFI_ADJUST_CFA_OFFSET REST_SKIP
23575 movq %rbp, %rdi
23576 call *%rbx
23577 movl $0, RAX(%rsp)
23578 RESTORE_REST
23579 jmp int_ret_from_sys_call
23580 CFI_ENDPROC
23581-END(ret_from_fork)
23582+ENDPROC(ret_from_fork)
23583
23584 /*
23585 * System call entry. Up to 6 arguments in registers are supported.
23586@@ -324,7 +792,7 @@ END(ret_from_fork)
23587 ENTRY(system_call)
23588 CFI_STARTPROC simple
23589 CFI_SIGNAL_FRAME
23590- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
23591+ CFI_DEF_CFA rsp,0
23592 CFI_REGISTER rip,rcx
23593 /*CFI_REGISTER rflags,r11*/
23594 SWAPGS_UNSAFE_STACK
23595@@ -337,16 +805,23 @@ GLOBAL(system_call_after_swapgs)
23596
23597 movq %rsp,PER_CPU_VAR(old_rsp)
23598 movq PER_CPU_VAR(kernel_stack),%rsp
23599+ SAVE_ARGS 8*6, 0, rax_enosys=1
23600+ pax_enter_kernel_user
23601+
23602+#ifdef CONFIG_PAX_RANDKSTACK
23603+ pax_erase_kstack
23604+#endif
23605+
23606 /*
23607 * No need to follow this irqs off/on section - it's straight
23608 * and short:
23609 */
23610 ENABLE_INTERRUPTS(CLBR_NONE)
23611- SAVE_ARGS 8, 0, rax_enosys=1
23612 movq_cfi rax,(ORIG_RAX-ARGOFFSET)
23613 movq %rcx,RIP-ARGOFFSET(%rsp)
23614 CFI_REL_OFFSET rip,RIP-ARGOFFSET
23615- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23616+ GET_THREAD_INFO(%rcx)
23617+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
23618 jnz tracesys
23619 system_call_fastpath:
23620 #if __SYSCALL_MASK == ~0
23621@@ -376,10 +851,13 @@ ret_from_sys_call:
23622 * flags (TIF_NOTIFY_RESUME, TIF_USER_RETURN_NOTIFY, etc) set is
23623 * very bad.
23624 */
23625- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23626+ GET_THREAD_INFO(%rcx)
23627+ testl $_TIF_ALLWORK_MASK,TI_flags(%rcx)
23628 jnz int_ret_from_sys_call_fixup /* Go the the slow path */
23629
23630 CFI_REMEMBER_STATE
23631+ pax_exit_kernel_user
23632+ pax_erase_kstack
23633 /*
23634 * sysretq will re-enable interrupts:
23635 */
23636@@ -399,12 +877,15 @@ int_ret_from_sys_call_fixup:
23637
23638 /* Do syscall tracing */
23639 tracesys:
23640- leaq -REST_SKIP(%rsp), %rdi
23641+ movq %rsp, %rdi
23642 movq $AUDIT_ARCH_X86_64, %rsi
23643 call syscall_trace_enter_phase1
23644 test %rax, %rax
23645 jnz tracesys_phase2 /* if needed, run the slow path */
23646- LOAD_ARGS 0 /* else restore clobbered regs */
23647+
23648+ pax_erase_kstack
23649+
23650+ LOAD_ARGS /* else restore clobbered regs */
23651 jmp system_call_fastpath /* and return to the fast path */
23652
23653 tracesys_phase2:
23654@@ -415,12 +896,14 @@ tracesys_phase2:
23655 movq %rax,%rdx
23656 call syscall_trace_enter_phase2
23657
23658+ pax_erase_kstack
23659+
23660 /*
23661 * Reload arg registers from stack in case ptrace changed them.
23662 * We don't reload %rax because syscall_trace_entry_phase2() returned
23663 * the value it wants us to use in the table lookup.
23664 */
23665- LOAD_ARGS ARGOFFSET, 1
23666+ LOAD_ARGS 1
23667 RESTORE_REST
23668 #if __SYSCALL_MASK == ~0
23669 cmpq $__NR_syscall_max,%rax
23670@@ -451,7 +934,9 @@ GLOBAL(int_with_check)
23671 andl %edi,%edx
23672 jnz int_careful
23673 andl $~TS_COMPAT,TI_status(%rcx)
23674- jmp retint_swapgs
23675+ pax_exit_kernel_user
23676+ pax_erase_kstack
23677+ jmp retint_swapgs_pax
23678
23679 /* Either reschedule or signal or syscall exit tracking needed. */
23680 /* First do a reschedule test. */
23681@@ -497,7 +982,7 @@ int_restore_rest:
23682 TRACE_IRQS_OFF
23683 jmp int_with_check
23684 CFI_ENDPROC
23685-END(system_call)
23686+ENDPROC(system_call)
23687
23688 .macro FORK_LIKE func
23689 ENTRY(stub_\func)
23690@@ -510,9 +995,10 @@ ENTRY(stub_\func)
23691 DEFAULT_FRAME 0 8 /* offset 8: return address */
23692 call sys_\func
23693 RESTORE_TOP_OF_STACK %r11, 8
23694- ret $REST_SKIP /* pop extended registers */
23695+ pax_force_retaddr
23696+ ret
23697 CFI_ENDPROC
23698-END(stub_\func)
23699+ENDPROC(stub_\func)
23700 .endm
23701
23702 .macro FIXED_FRAME label,func
23703@@ -522,9 +1008,10 @@ ENTRY(\label)
23704 FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
23705 call \func
23706 RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
23707+ pax_force_retaddr
23708 ret
23709 CFI_ENDPROC
23710-END(\label)
23711+ENDPROC(\label)
23712 .endm
23713
23714 FORK_LIKE clone
23715@@ -543,7 +1030,7 @@ ENTRY(stub_execve)
23716 RESTORE_REST
23717 jmp int_ret_from_sys_call
23718 CFI_ENDPROC
23719-END(stub_execve)
23720+ENDPROC(stub_execve)
23721
23722 ENTRY(stub_execveat)
23723 CFI_STARTPROC
23724@@ -557,7 +1044,7 @@ ENTRY(stub_execveat)
23725 RESTORE_REST
23726 jmp int_ret_from_sys_call
23727 CFI_ENDPROC
23728-END(stub_execveat)
23729+ENDPROC(stub_execveat)
23730
23731 /*
23732 * sigreturn is special because it needs to restore all registers on return.
23733@@ -574,7 +1061,7 @@ ENTRY(stub_rt_sigreturn)
23734 RESTORE_REST
23735 jmp int_ret_from_sys_call
23736 CFI_ENDPROC
23737-END(stub_rt_sigreturn)
23738+ENDPROC(stub_rt_sigreturn)
23739
23740 #ifdef CONFIG_X86_X32_ABI
23741 ENTRY(stub_x32_rt_sigreturn)
23742@@ -588,7 +1075,7 @@ ENTRY(stub_x32_rt_sigreturn)
23743 RESTORE_REST
23744 jmp int_ret_from_sys_call
23745 CFI_ENDPROC
23746-END(stub_x32_rt_sigreturn)
23747+ENDPROC(stub_x32_rt_sigreturn)
23748
23749 ENTRY(stub_x32_execve)
23750 CFI_STARTPROC
23751@@ -602,7 +1089,7 @@ ENTRY(stub_x32_execve)
23752 RESTORE_REST
23753 jmp int_ret_from_sys_call
23754 CFI_ENDPROC
23755-END(stub_x32_execve)
23756+ENDPROC(stub_x32_execve)
23757
23758 ENTRY(stub_x32_execveat)
23759 CFI_STARTPROC
23760@@ -616,7 +1103,7 @@ ENTRY(stub_x32_execveat)
23761 RESTORE_REST
23762 jmp int_ret_from_sys_call
23763 CFI_ENDPROC
23764-END(stub_x32_execveat)
23765+ENDPROC(stub_x32_execveat)
23766
23767 #endif
23768
23769@@ -653,7 +1140,7 @@ vector=vector+1
23770 2: jmp common_interrupt
23771 .endr
23772 CFI_ENDPROC
23773-END(irq_entries_start)
23774+ENDPROC(irq_entries_start)
23775
23776 .previous
23777 END(interrupt)
23778@@ -670,28 +1157,29 @@ END(interrupt)
23779 /* 0(%rsp): ~(interrupt number) */
23780 .macro interrupt func
23781 /* reserve pt_regs for scratch regs and rbp */
23782- subq $ORIG_RAX-RBP, %rsp
23783- CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
23784+ subq $ORIG_RAX, %rsp
23785+ CFI_ADJUST_CFA_OFFSET ORIG_RAX
23786 cld
23787- /* start from rbp in pt_regs and jump over */
23788- movq_cfi rdi, (RDI-RBP)
23789- movq_cfi rsi, (RSI-RBP)
23790- movq_cfi rdx, (RDX-RBP)
23791- movq_cfi rcx, (RCX-RBP)
23792- movq_cfi rax, (RAX-RBP)
23793- movq_cfi r8, (R8-RBP)
23794- movq_cfi r9, (R9-RBP)
23795- movq_cfi r10, (R10-RBP)
23796- movq_cfi r11, (R11-RBP)
23797+ /* start from r15 in pt_regs and jump over */
23798+ movq_cfi rdi, RDI
23799+ movq_cfi rsi, RSI
23800+ movq_cfi rdx, RDX
23801+ movq_cfi rcx, RCX
23802+ movq_cfi rax, RAX
23803+ movq_cfi r8, R8
23804+ movq_cfi r9, R9
23805+ movq_cfi r10, R10
23806+ movq_cfi r11, R11
23807+ movq_cfi r12, R12
23808
23809 /* Save rbp so that we can unwind from get_irq_regs() */
23810- movq_cfi rbp, 0
23811+ movq_cfi rbp, RBP
23812
23813 /* Save previous stack value */
23814 movq %rsp, %rsi
23815
23816- leaq -RBP(%rsp),%rdi /* arg1 for handler */
23817- testl $3, CS-RBP(%rsi)
23818+ movq %rsp,%rdi /* arg1 for handler */
23819+ testb $3, CS(%rsi)
23820 je 1f
23821 SWAPGS
23822 /*
23823@@ -711,6 +1199,18 @@ END(interrupt)
23824 0x06 /* DW_OP_deref */, \
23825 0x08 /* DW_OP_const1u */, SS+8-RBP, \
23826 0x22 /* DW_OP_plus */
23827+
23828+#ifdef CONFIG_PAX_MEMORY_UDEREF
23829+ testb $3, CS(%rdi)
23830+ jnz 1f
23831+ pax_enter_kernel
23832+ jmp 2f
23833+1: pax_enter_kernel_user
23834+2:
23835+#else
23836+ pax_enter_kernel
23837+#endif
23838+
23839 /* We entered an interrupt context - irqs are off: */
23840 TRACE_IRQS_OFF
23841
23842@@ -735,14 +1235,14 @@ ret_from_intr:
23843
23844 /* Restore saved previous stack */
23845 popq %rsi
23846- CFI_DEF_CFA rsi,SS+8-RBP /* reg/off reset after def_cfa_expr */
23847- leaq ARGOFFSET-RBP(%rsi), %rsp
23848+ CFI_DEF_CFA rsi,SS+8 /* reg/off reset after def_cfa_expr */
23849+ movq %rsi, %rsp
23850 CFI_DEF_CFA_REGISTER rsp
23851- CFI_ADJUST_CFA_OFFSET RBP-ARGOFFSET
23852+ CFI_ADJUST_CFA_OFFSET -ARGOFFSET
23853
23854 exit_intr:
23855 GET_THREAD_INFO(%rcx)
23856- testl $3,CS-ARGOFFSET(%rsp)
23857+ testb $3,CS-ARGOFFSET(%rsp)
23858 je retint_kernel
23859
23860 /* Interrupt came from user space */
23861@@ -764,14 +1264,16 @@ retint_swapgs: /* return to user-space */
23862 * The iretq could re-enable interrupts:
23863 */
23864 DISABLE_INTERRUPTS(CLBR_ANY)
23865+ pax_exit_kernel_user
23866+retint_swapgs_pax:
23867 TRACE_IRQS_IRETQ
23868
23869 /*
23870 * Try to use SYSRET instead of IRET if we're returning to
23871 * a completely clean 64-bit userspace context.
23872 */
23873- movq (RCX-R11)(%rsp), %rcx
23874- cmpq %rcx,(RIP-R11)(%rsp) /* RCX == RIP */
23875+ movq (RCX-ARGOFFSET)(%rsp), %rcx
23876+ cmpq %rcx,(RIP-ARGOFFSET)(%rsp) /* RCX == RIP */
23877 jne opportunistic_sysret_failed
23878
23879 /*
23880@@ -792,7 +1294,7 @@ retint_swapgs: /* return to user-space */
23881 shr $__VIRTUAL_MASK_SHIFT, %rcx
23882 jnz opportunistic_sysret_failed
23883
23884- cmpq $__USER_CS,(CS-R11)(%rsp) /* CS must match SYSRET */
23885+ cmpq $__USER_CS,(CS-ARGOFFSET)(%rsp) /* CS must match SYSRET */
23886 jne opportunistic_sysret_failed
23887
23888 movq (R11-ARGOFFSET)(%rsp), %r11
23889@@ -838,6 +1340,27 @@ opportunistic_sysret_failed:
23890
23891 retint_restore_args: /* return to kernel space */
23892 DISABLE_INTERRUPTS(CLBR_ANY)
23893+ pax_exit_kernel
23894+
23895+#if defined(CONFIG_EFI) && defined(CONFIG_PAX_KERNEXEC)
23896+ /* This is a quirk to allow IRQs/NMIs/MCEs during early EFI setup,
23897+ * namely calling EFI runtime services with a phys mapping. We're
23898+ * starting off with NOPs and patch in the real instrumentation
23899+ * (BTS/OR) before starting any userland process; even before starting
23900+ * up the APs.
23901+ */
23902+ .pushsection .altinstr_replacement, "a"
23903+ 601: pax_force_retaddr (RIP-ARGOFFSET)
23904+ 602:
23905+ .popsection
23906+ 603: .fill 602b-601b, 1, 0x90
23907+ .pushsection .altinstructions, "a"
23908+ altinstruction_entry 603b, 601b, X86_FEATURE_ALWAYS, 602b-601b, 602b-601b
23909+ .popsection
23910+#else
23911+ pax_force_retaddr (RIP-ARGOFFSET)
23912+#endif
23913+
23914 /*
23915 * The iretq could re-enable interrupts:
23916 */
23917@@ -875,15 +1398,15 @@ native_irq_return_ldt:
23918 SWAPGS
23919 movq PER_CPU_VAR(espfix_waddr),%rdi
23920 movq %rax,(0*8)(%rdi) /* RAX */
23921- movq (2*8)(%rsp),%rax /* RIP */
23922+ movq (2*8 + RIP-RIP)(%rsp),%rax /* RIP */
23923 movq %rax,(1*8)(%rdi)
23924- movq (3*8)(%rsp),%rax /* CS */
23925+ movq (2*8 + CS-RIP)(%rsp),%rax /* CS */
23926 movq %rax,(2*8)(%rdi)
23927- movq (4*8)(%rsp),%rax /* RFLAGS */
23928+ movq (2*8 + EFLAGS-RIP)(%rsp),%rax /* RFLAGS */
23929 movq %rax,(3*8)(%rdi)
23930- movq (6*8)(%rsp),%rax /* SS */
23931+ movq (2*8 + SS-RIP)(%rsp),%rax /* SS */
23932 movq %rax,(5*8)(%rdi)
23933- movq (5*8)(%rsp),%rax /* RSP */
23934+ movq (2*8 + RSP-RIP)(%rsp),%rax /* RSP */
23935 movq %rax,(4*8)(%rdi)
23936 andl $0xffff0000,%eax
23937 popq_cfi %rdi
23938@@ -937,7 +1460,7 @@ ENTRY(retint_kernel)
23939 jmp exit_intr
23940 #endif
23941 CFI_ENDPROC
23942-END(common_interrupt)
23943+ENDPROC(common_interrupt)
23944
23945 /*
23946 * APIC interrupts.
23947@@ -951,7 +1474,7 @@ ENTRY(\sym)
23948 interrupt \do_sym
23949 jmp ret_from_intr
23950 CFI_ENDPROC
23951-END(\sym)
23952+ENDPROC(\sym)
23953 .endm
23954
23955 #ifdef CONFIG_TRACING
23956@@ -1024,7 +1547,7 @@ apicinterrupt IRQ_WORK_VECTOR \
23957 /*
23958 * Exception entry points.
23959 */
23960-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
23961+#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r13)
23962
23963 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
23964 ENTRY(\sym)
23965@@ -1080,6 +1603,12 @@ ENTRY(\sym)
23966 .endif
23967
23968 .if \shift_ist != -1
23969+#ifdef CONFIG_SMP
23970+ imul $TSS_size, PER_CPU_VAR(cpu_number), %r13d
23971+ lea init_tss(%r13), %r13
23972+#else
23973+ lea init_tss(%rip), %r13
23974+#endif
23975 subq $EXCEPTION_STKSZ, INIT_TSS_IST(\shift_ist)
23976 .endif
23977
23978@@ -1126,7 +1655,7 @@ ENTRY(\sym)
23979 .endif
23980
23981 CFI_ENDPROC
23982-END(\sym)
23983+ENDPROC(\sym)
23984 .endm
23985
23986 #ifdef CONFIG_TRACING
23987@@ -1167,9 +1696,10 @@ gs_change:
23988 2: mfence /* workaround */
23989 SWAPGS
23990 popfq_cfi
23991+ pax_force_retaddr
23992 ret
23993 CFI_ENDPROC
23994-END(native_load_gs_index)
23995+ENDPROC(native_load_gs_index)
23996
23997 _ASM_EXTABLE(gs_change,bad_gs)
23998 .section .fixup,"ax"
23999@@ -1197,9 +1727,10 @@ ENTRY(do_softirq_own_stack)
24000 CFI_DEF_CFA_REGISTER rsp
24001 CFI_ADJUST_CFA_OFFSET -8
24002 decl PER_CPU_VAR(irq_count)
24003+ pax_force_retaddr
24004 ret
24005 CFI_ENDPROC
24006-END(do_softirq_own_stack)
24007+ENDPROC(do_softirq_own_stack)
24008
24009 #ifdef CONFIG_XEN
24010 idtentry xen_hypervisor_callback xen_do_hypervisor_callback has_error_code=0
24011@@ -1240,7 +1771,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs)
24012 #endif
24013 jmp error_exit
24014 CFI_ENDPROC
24015-END(xen_do_hypervisor_callback)
24016+ENDPROC(xen_do_hypervisor_callback)
24017
24018 /*
24019 * Hypervisor uses this for application faults while it executes.
24020@@ -1299,7 +1830,7 @@ ENTRY(xen_failsafe_callback)
24021 SAVE_ALL
24022 jmp error_exit
24023 CFI_ENDPROC
24024-END(xen_failsafe_callback)
24025+ENDPROC(xen_failsafe_callback)
24026
24027 apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
24028 xen_hvm_callback_vector xen_evtchn_do_upcall
24029@@ -1344,18 +1875,25 @@ ENTRY(paranoid_exit)
24030 DEFAULT_FRAME
24031 DISABLE_INTERRUPTS(CLBR_NONE)
24032 TRACE_IRQS_OFF_DEBUG
24033- testl %ebx,%ebx /* swapgs needed? */
24034+ testl $1,%ebx /* swapgs needed? */
24035 jnz paranoid_restore
24036+#ifdef CONFIG_PAX_MEMORY_UDEREF
24037+ pax_exit_kernel_user
24038+#else
24039+ pax_exit_kernel
24040+#endif
24041 TRACE_IRQS_IRETQ 0
24042 SWAPGS_UNSAFE_STACK
24043 RESTORE_ALL 8
24044 INTERRUPT_RETURN
24045 paranoid_restore:
24046+ pax_exit_kernel
24047 TRACE_IRQS_IRETQ_DEBUG 0
24048 RESTORE_ALL 8
24049+ pax_force_retaddr_bts
24050 INTERRUPT_RETURN
24051 CFI_ENDPROC
24052-END(paranoid_exit)
24053+ENDPROC(paranoid_exit)
24054
24055 /*
24056 * Exception entry point. This expects an error code/orig_rax on the stack.
24057@@ -1382,12 +1920,23 @@ ENTRY(error_entry)
24058 movq %r14, R14+8(%rsp)
24059 movq %r15, R15+8(%rsp)
24060 xorl %ebx,%ebx
24061- testl $3,CS+8(%rsp)
24062+ testb $3,CS+8(%rsp)
24063 je error_kernelspace
24064 error_swapgs:
24065 SWAPGS
24066 error_sti:
24067+#ifdef CONFIG_PAX_MEMORY_UDEREF
24068+ testb $3, CS+8(%rsp)
24069+ jnz 1f
24070+ pax_enter_kernel
24071+ jmp 2f
24072+1: pax_enter_kernel_user
24073+2:
24074+#else
24075+ pax_enter_kernel
24076+#endif
24077 TRACE_IRQS_OFF
24078+ pax_force_retaddr
24079 ret
24080
24081 /*
24082@@ -1422,7 +1971,7 @@ error_bad_iret:
24083 decl %ebx /* Return to usergs */
24084 jmp error_sti
24085 CFI_ENDPROC
24086-END(error_entry)
24087+ENDPROC(error_entry)
24088
24089
24090 /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */
24091@@ -1433,7 +1982,7 @@ ENTRY(error_exit)
24092 DISABLE_INTERRUPTS(CLBR_NONE)
24093 TRACE_IRQS_OFF
24094 GET_THREAD_INFO(%rcx)
24095- testl %eax,%eax
24096+ testl $1,%eax
24097 jne retint_kernel
24098 LOCKDEP_SYS_EXIT_IRQ
24099 movl TI_flags(%rcx),%edx
24100@@ -1442,7 +1991,7 @@ ENTRY(error_exit)
24101 jnz retint_careful
24102 jmp retint_swapgs
24103 CFI_ENDPROC
24104-END(error_exit)
24105+ENDPROC(error_exit)
24106
24107 /*
24108 * Test if a given stack is an NMI stack or not.
24109@@ -1500,9 +2049,11 @@ ENTRY(nmi)
24110 * If %cs was not the kernel segment, then the NMI triggered in user
24111 * space, which means it is definitely not nested.
24112 */
24113+ cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
24114+ je 1f
24115 cmpl $__KERNEL_CS, 16(%rsp)
24116 jne first_nmi
24117-
24118+1:
24119 /*
24120 * Check the special variable on the stack to see if NMIs are
24121 * executing.
24122@@ -1536,8 +2087,7 @@ nested_nmi:
24123
24124 1:
24125 /* Set up the interrupted NMIs stack to jump to repeat_nmi */
24126- leaq -1*8(%rsp), %rdx
24127- movq %rdx, %rsp
24128+ subq $8, %rsp
24129 CFI_ADJUST_CFA_OFFSET 1*8
24130 leaq -10*8(%rsp), %rdx
24131 pushq_cfi $__KERNEL_DS
24132@@ -1555,6 +2105,7 @@ nested_nmi_out:
24133 CFI_RESTORE rdx
24134
24135 /* No need to check faults here */
24136+# pax_force_retaddr_bts
24137 INTERRUPT_RETURN
24138
24139 CFI_RESTORE_STATE
24140@@ -1651,13 +2202,13 @@ end_repeat_nmi:
24141 subq $ORIG_RAX-R15, %rsp
24142 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
24143 /*
24144- * Use save_paranoid to handle SWAPGS, but no need to use paranoid_exit
24145+ * Use save_paranoid_nmi to handle SWAPGS, but no need to use paranoid_exit
24146 * as we should not be calling schedule in NMI context.
24147 * Even with normal interrupts enabled. An NMI should not be
24148 * setting NEED_RESCHED or anything that normal interrupts and
24149 * exceptions might do.
24150 */
24151- call save_paranoid
24152+ call save_paranoid_nmi
24153 DEFAULT_FRAME 0
24154
24155 /*
24156@@ -1667,9 +2218,9 @@ end_repeat_nmi:
24157 * NMI itself takes a page fault, the page fault that was preempted
24158 * will read the information from the NMI page fault and not the
24159 * origin fault. Save it off and restore it if it changes.
24160- * Use the r12 callee-saved register.
24161+ * Use the r13 callee-saved register.
24162 */
24163- movq %cr2, %r12
24164+ movq %cr2, %r13
24165
24166 /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
24167 movq %rsp,%rdi
24168@@ -1678,29 +2229,34 @@ end_repeat_nmi:
24169
24170 /* Did the NMI take a page fault? Restore cr2 if it did */
24171 movq %cr2, %rcx
24172- cmpq %rcx, %r12
24173+ cmpq %rcx, %r13
24174 je 1f
24175- movq %r12, %cr2
24176+ movq %r13, %cr2
24177 1:
24178
24179- testl %ebx,%ebx /* swapgs needed? */
24180+ testl $1,%ebx /* swapgs needed? */
24181 jnz nmi_restore
24182 nmi_swapgs:
24183 SWAPGS_UNSAFE_STACK
24184 nmi_restore:
24185+ pax_exit_kernel_nmi
24186 /* Pop the extra iret frame at once */
24187 RESTORE_ALL 6*8
24188+ testb $3, 8(%rsp)
24189+ jnz 1f
24190+ pax_force_retaddr_bts
24191+1:
24192
24193 /* Clear the NMI executing stack variable */
24194 movq $0, 5*8(%rsp)
24195 jmp irq_return
24196 CFI_ENDPROC
24197-END(nmi)
24198+ENDPROC(nmi)
24199
24200 ENTRY(ignore_sysret)
24201 CFI_STARTPROC
24202 mov $-ENOSYS,%eax
24203 sysret
24204 CFI_ENDPROC
24205-END(ignore_sysret)
24206+ENDPROC(ignore_sysret)
24207
24208diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
24209index f5d0730..5bce89c 100644
24210--- a/arch/x86/kernel/espfix_64.c
24211+++ b/arch/x86/kernel/espfix_64.c
24212@@ -70,8 +70,7 @@ static DEFINE_MUTEX(espfix_init_mutex);
24213 #define ESPFIX_MAX_PAGES DIV_ROUND_UP(CONFIG_NR_CPUS, ESPFIX_STACKS_PER_PAGE)
24214 static void *espfix_pages[ESPFIX_MAX_PAGES];
24215
24216-static __page_aligned_bss pud_t espfix_pud_page[PTRS_PER_PUD]
24217- __aligned(PAGE_SIZE);
24218+static pud_t espfix_pud_page[PTRS_PER_PUD] __page_aligned_rodata;
24219
24220 static unsigned int page_random, slot_random;
24221
24222@@ -122,11 +121,17 @@ static void init_espfix_random(void)
24223 void __init init_espfix_bsp(void)
24224 {
24225 pgd_t *pgd_p;
24226+ unsigned long index = pgd_index(ESPFIX_BASE_ADDR);
24227
24228 /* Install the espfix pud into the kernel page directory */
24229- pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
24230+ pgd_p = &init_level4_pgt[index];
24231 pgd_populate(&init_mm, pgd_p, (pud_t *)espfix_pud_page);
24232
24233+#ifdef CONFIG_PAX_PER_CPU_PGD
24234+ clone_pgd_range(get_cpu_pgd(0, kernel) + index, swapper_pg_dir + index, 1);
24235+ clone_pgd_range(get_cpu_pgd(0, user) + index, swapper_pg_dir + index, 1);
24236+#endif
24237+
24238 /* Randomize the locations */
24239 init_espfix_random();
24240
24241@@ -194,7 +199,7 @@ void init_espfix_ap(void)
24242 set_pte(&pte_p[n*PTE_STRIDE], pte);
24243
24244 /* Job is done for this CPU and any CPU which shares this page */
24245- ACCESS_ONCE(espfix_pages[page]) = stack_page;
24246+ ACCESS_ONCE_RW(espfix_pages[page]) = stack_page;
24247
24248 unlock_done:
24249 mutex_unlock(&espfix_init_mutex);
24250diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
24251index 8b7b0a5..2395f29 100644
24252--- a/arch/x86/kernel/ftrace.c
24253+++ b/arch/x86/kernel/ftrace.c
24254@@ -89,7 +89,7 @@ static unsigned long text_ip_addr(unsigned long ip)
24255 * kernel identity mapping to modify code.
24256 */
24257 if (within(ip, (unsigned long)_text, (unsigned long)_etext))
24258- ip = (unsigned long)__va(__pa_symbol(ip));
24259+ ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
24260
24261 return ip;
24262 }
24263@@ -105,6 +105,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
24264 {
24265 unsigned char replaced[MCOUNT_INSN_SIZE];
24266
24267+ ip = ktla_ktva(ip);
24268+
24269 /*
24270 * Note: Due to modules and __init, code can
24271 * disappear and change, we need to protect against faulting
24272@@ -230,7 +232,7 @@ static int update_ftrace_func(unsigned long ip, void *new)
24273 unsigned char old[MCOUNT_INSN_SIZE];
24274 int ret;
24275
24276- memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
24277+ memcpy(old, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE);
24278
24279 ftrace_update_func = ip;
24280 /* Make sure the breakpoints see the ftrace_update_func update */
24281@@ -311,7 +313,7 @@ static int add_break(unsigned long ip, const char *old)
24282 unsigned char replaced[MCOUNT_INSN_SIZE];
24283 unsigned char brk = BREAKPOINT_INSTRUCTION;
24284
24285- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
24286+ if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
24287 return -EFAULT;
24288
24289 /* Make sure it is what we expect it to be */
24290diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
24291index c4f8d46..2d63ae2 100644
24292--- a/arch/x86/kernel/head64.c
24293+++ b/arch/x86/kernel/head64.c
24294@@ -68,12 +68,12 @@ again:
24295 pgd = *pgd_p;
24296
24297 /*
24298- * The use of __START_KERNEL_map rather than __PAGE_OFFSET here is
24299- * critical -- __PAGE_OFFSET would point us back into the dynamic
24300+ * The use of __early_va rather than __va here is critical:
24301+ * __va would point us back into the dynamic
24302 * range and we might end up looping forever...
24303 */
24304 if (pgd)
24305- pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24306+ pud_p = (pudval_t *)(__early_va(pgd & PTE_PFN_MASK));
24307 else {
24308 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24309 reset_early_page_tables();
24310@@ -83,13 +83,13 @@ again:
24311 pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
24312 for (i = 0; i < PTRS_PER_PUD; i++)
24313 pud_p[i] = 0;
24314- *pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24315+ *pgd_p = (pgdval_t)__pa(pud_p) + _KERNPG_TABLE;
24316 }
24317 pud_p += pud_index(address);
24318 pud = *pud_p;
24319
24320 if (pud)
24321- pmd_p = (pmdval_t *)((pud & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24322+ pmd_p = (pmdval_t *)(__early_va(pud & PTE_PFN_MASK));
24323 else {
24324 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24325 reset_early_page_tables();
24326@@ -99,7 +99,7 @@ again:
24327 pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++];
24328 for (i = 0; i < PTRS_PER_PMD; i++)
24329 pmd_p[i] = 0;
24330- *pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24331+ *pud_p = (pudval_t)__pa(pmd_p) + _KERNPG_TABLE;
24332 }
24333 pmd = (physaddr & PMD_MASK) + early_pmd_flags;
24334 pmd_p[pmd_index(address)] = pmd;
24335@@ -180,7 +180,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
24336 if (console_loglevel >= CONSOLE_LOGLEVEL_DEBUG)
24337 early_printk("Kernel alive\n");
24338
24339- clear_page(init_level4_pgt);
24340 /* set init_level4_pgt kernel high mapping*/
24341 init_level4_pgt[511] = early_level4_pgt[511];
24342
24343diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
24344index f36bd42..0ab4474 100644
24345--- a/arch/x86/kernel/head_32.S
24346+++ b/arch/x86/kernel/head_32.S
24347@@ -26,6 +26,12 @@
24348 /* Physical address */
24349 #define pa(X) ((X) - __PAGE_OFFSET)
24350
24351+#ifdef CONFIG_PAX_KERNEXEC
24352+#define ta(X) (X)
24353+#else
24354+#define ta(X) ((X) - __PAGE_OFFSET)
24355+#endif
24356+
24357 /*
24358 * References to members of the new_cpu_data structure.
24359 */
24360@@ -55,11 +61,7 @@
24361 * and small than max_low_pfn, otherwise will waste some page table entries
24362 */
24363
24364-#if PTRS_PER_PMD > 1
24365-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
24366-#else
24367-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
24368-#endif
24369+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
24370
24371 /* Number of possible pages in the lowmem region */
24372 LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
24373@@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
24374 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24375
24376 /*
24377+ * Real beginning of normal "text" segment
24378+ */
24379+ENTRY(stext)
24380+ENTRY(_stext)
24381+
24382+/*
24383 * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
24384 * %esi points to the real-mode code as a 32-bit pointer.
24385 * CS and DS must be 4 GB flat segments, but we don't depend on
24386@@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24387 * can.
24388 */
24389 __HEAD
24390+
24391+#ifdef CONFIG_PAX_KERNEXEC
24392+ jmp startup_32
24393+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
24394+.fill PAGE_SIZE-5,1,0xcc
24395+#endif
24396+
24397 ENTRY(startup_32)
24398 movl pa(stack_start),%ecx
24399
24400@@ -106,6 +121,59 @@ ENTRY(startup_32)
24401 2:
24402 leal -__PAGE_OFFSET(%ecx),%esp
24403
24404+#ifdef CONFIG_SMP
24405+ movl $pa(cpu_gdt_table),%edi
24406+ movl $__per_cpu_load,%eax
24407+ movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
24408+ rorl $16,%eax
24409+ movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
24410+ movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
24411+ movl $__per_cpu_end - 1,%eax
24412+ subl $__per_cpu_start,%eax
24413+ movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
24414+#endif
24415+
24416+#ifdef CONFIG_PAX_MEMORY_UDEREF
24417+ movl $NR_CPUS,%ecx
24418+ movl $pa(cpu_gdt_table),%edi
24419+1:
24420+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
24421+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
24422+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
24423+ addl $PAGE_SIZE_asm,%edi
24424+ loop 1b
24425+#endif
24426+
24427+#ifdef CONFIG_PAX_KERNEXEC
24428+ movl $pa(boot_gdt),%edi
24429+ movl $__LOAD_PHYSICAL_ADDR,%eax
24430+ movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
24431+ rorl $16,%eax
24432+ movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
24433+ movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
24434+ rorl $16,%eax
24435+
24436+ ljmp $(__BOOT_CS),$1f
24437+1:
24438+
24439+ movl $NR_CPUS,%ecx
24440+ movl $pa(cpu_gdt_table),%edi
24441+ addl $__PAGE_OFFSET,%eax
24442+1:
24443+ movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
24444+ movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
24445+ movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
24446+ movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
24447+ rorl $16,%eax
24448+ movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
24449+ movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
24450+ movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
24451+ movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
24452+ rorl $16,%eax
24453+ addl $PAGE_SIZE_asm,%edi
24454+ loop 1b
24455+#endif
24456+
24457 /*
24458 * Clear BSS first so that there are no surprises...
24459 */
24460@@ -201,8 +269,11 @@ ENTRY(startup_32)
24461 movl %eax, pa(max_pfn_mapped)
24462
24463 /* Do early initialization of the fixmap area */
24464- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24465- movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
24466+#ifdef CONFIG_COMPAT_VDSO
24467+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
24468+#else
24469+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
24470+#endif
24471 #else /* Not PAE */
24472
24473 page_pde_offset = (__PAGE_OFFSET >> 20);
24474@@ -232,8 +303,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24475 movl %eax, pa(max_pfn_mapped)
24476
24477 /* Do early initialization of the fixmap area */
24478- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24479- movl %eax,pa(initial_page_table+0xffc)
24480+#ifdef CONFIG_COMPAT_VDSO
24481+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
24482+#else
24483+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
24484+#endif
24485 #endif
24486
24487 #ifdef CONFIG_PARAVIRT
24488@@ -247,9 +321,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24489 cmpl $num_subarch_entries, %eax
24490 jae bad_subarch
24491
24492- movl pa(subarch_entries)(,%eax,4), %eax
24493- subl $__PAGE_OFFSET, %eax
24494- jmp *%eax
24495+ jmp *pa(subarch_entries)(,%eax,4)
24496
24497 bad_subarch:
24498 WEAK(lguest_entry)
24499@@ -261,10 +333,10 @@ WEAK(xen_entry)
24500 __INITDATA
24501
24502 subarch_entries:
24503- .long default_entry /* normal x86/PC */
24504- .long lguest_entry /* lguest hypervisor */
24505- .long xen_entry /* Xen hypervisor */
24506- .long default_entry /* Moorestown MID */
24507+ .long ta(default_entry) /* normal x86/PC */
24508+ .long ta(lguest_entry) /* lguest hypervisor */
24509+ .long ta(xen_entry) /* Xen hypervisor */
24510+ .long ta(default_entry) /* Moorestown MID */
24511 num_subarch_entries = (. - subarch_entries) / 4
24512 .previous
24513 #else
24514@@ -354,6 +426,7 @@ default_entry:
24515 movl pa(mmu_cr4_features),%eax
24516 movl %eax,%cr4
24517
24518+#ifdef CONFIG_X86_PAE
24519 testb $X86_CR4_PAE, %al # check if PAE is enabled
24520 jz enable_paging
24521
24522@@ -382,6 +455,9 @@ default_entry:
24523 /* Make changes effective */
24524 wrmsr
24525
24526+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
24527+#endif
24528+
24529 enable_paging:
24530
24531 /*
24532@@ -449,14 +525,20 @@ is486:
24533 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
24534 movl %eax,%ss # after changing gdt.
24535
24536- movl $(__USER_DS),%eax # DS/ES contains default USER segment
24537+# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment
24538 movl %eax,%ds
24539 movl %eax,%es
24540
24541 movl $(__KERNEL_PERCPU), %eax
24542 movl %eax,%fs # set this cpu's percpu
24543
24544+#ifdef CONFIG_CC_STACKPROTECTOR
24545 movl $(__KERNEL_STACK_CANARY),%eax
24546+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
24547+ movl $(__USER_DS),%eax
24548+#else
24549+ xorl %eax,%eax
24550+#endif
24551 movl %eax,%gs
24552
24553 xorl %eax,%eax # Clear LDT
24554@@ -512,8 +594,11 @@ setup_once:
24555 * relocation. Manually set base address in stack canary
24556 * segment descriptor.
24557 */
24558- movl $gdt_page,%eax
24559+ movl $cpu_gdt_table,%eax
24560 movl $stack_canary,%ecx
24561+#ifdef CONFIG_SMP
24562+ addl $__per_cpu_load,%ecx
24563+#endif
24564 movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
24565 shrl $16, %ecx
24566 movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
24567@@ -548,7 +633,7 @@ ENTRY(early_idt_handler)
24568 cmpl $2,(%esp) # X86_TRAP_NMI
24569 je is_nmi # Ignore NMI
24570
24571- cmpl $2,%ss:early_recursion_flag
24572+ cmpl $1,%ss:early_recursion_flag
24573 je hlt_loop
24574 incl %ss:early_recursion_flag
24575
24576@@ -586,8 +671,8 @@ ENTRY(early_idt_handler)
24577 pushl (20+6*4)(%esp) /* trapno */
24578 pushl $fault_msg
24579 call printk
24580-#endif
24581 call dump_stack
24582+#endif
24583 hlt_loop:
24584 hlt
24585 jmp hlt_loop
24586@@ -607,8 +692,11 @@ ENDPROC(early_idt_handler)
24587 /* This is the default interrupt "handler" :-) */
24588 ALIGN
24589 ignore_int:
24590- cld
24591 #ifdef CONFIG_PRINTK
24592+ cmpl $2,%ss:early_recursion_flag
24593+ je hlt_loop
24594+ incl %ss:early_recursion_flag
24595+ cld
24596 pushl %eax
24597 pushl %ecx
24598 pushl %edx
24599@@ -617,9 +705,6 @@ ignore_int:
24600 movl $(__KERNEL_DS),%eax
24601 movl %eax,%ds
24602 movl %eax,%es
24603- cmpl $2,early_recursion_flag
24604- je hlt_loop
24605- incl early_recursion_flag
24606 pushl 16(%esp)
24607 pushl 24(%esp)
24608 pushl 32(%esp)
24609@@ -653,29 +738,34 @@ ENTRY(setup_once_ref)
24610 /*
24611 * BSS section
24612 */
24613-__PAGE_ALIGNED_BSS
24614- .align PAGE_SIZE
24615 #ifdef CONFIG_X86_PAE
24616+.section .initial_pg_pmd,"a",@progbits
24617 initial_pg_pmd:
24618 .fill 1024*KPMDS,4,0
24619 #else
24620+.section .initial_page_table,"a",@progbits
24621 ENTRY(initial_page_table)
24622 .fill 1024,4,0
24623 #endif
24624+.section .initial_pg_fixmap,"a",@progbits
24625 initial_pg_fixmap:
24626 .fill 1024,4,0
24627+.section .empty_zero_page,"a",@progbits
24628 ENTRY(empty_zero_page)
24629 .fill 4096,1,0
24630+.section .swapper_pg_dir,"a",@progbits
24631 ENTRY(swapper_pg_dir)
24632+#ifdef CONFIG_X86_PAE
24633+ .fill 4,8,0
24634+#else
24635 .fill 1024,4,0
24636+#endif
24637
24638 /*
24639 * This starts the data section.
24640 */
24641 #ifdef CONFIG_X86_PAE
24642-__PAGE_ALIGNED_DATA
24643- /* Page-aligned for the benefit of paravirt? */
24644- .align PAGE_SIZE
24645+.section .initial_page_table,"a",@progbits
24646 ENTRY(initial_page_table)
24647 .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
24648 # if KPMDS == 3
24649@@ -694,12 +784,20 @@ ENTRY(initial_page_table)
24650 # error "Kernel PMDs should be 1, 2 or 3"
24651 # endif
24652 .align PAGE_SIZE /* needs to be page-sized too */
24653+
24654+#ifdef CONFIG_PAX_PER_CPU_PGD
24655+ENTRY(cpu_pgd)
24656+ .rept 2*NR_CPUS
24657+ .fill 4,8,0
24658+ .endr
24659+#endif
24660+
24661 #endif
24662
24663 .data
24664 .balign 4
24665 ENTRY(stack_start)
24666- .long init_thread_union+THREAD_SIZE
24667+ .long init_thread_union+THREAD_SIZE-8
24668
24669 __INITRODATA
24670 int_msg:
24671@@ -727,7 +825,7 @@ fault_msg:
24672 * segment size, and 32-bit linear address value:
24673 */
24674
24675- .data
24676+.section .rodata,"a",@progbits
24677 .globl boot_gdt_descr
24678 .globl idt_descr
24679
24680@@ -736,7 +834,7 @@ fault_msg:
24681 .word 0 # 32 bit align gdt_desc.address
24682 boot_gdt_descr:
24683 .word __BOOT_DS+7
24684- .long boot_gdt - __PAGE_OFFSET
24685+ .long pa(boot_gdt)
24686
24687 .word 0 # 32-bit align idt_desc.address
24688 idt_descr:
24689@@ -747,7 +845,7 @@ idt_descr:
24690 .word 0 # 32 bit align gdt_desc.address
24691 ENTRY(early_gdt_descr)
24692 .word GDT_ENTRIES*8-1
24693- .long gdt_page /* Overwritten for secondary CPUs */
24694+ .long cpu_gdt_table /* Overwritten for secondary CPUs */
24695
24696 /*
24697 * The boot_gdt must mirror the equivalent in setup.S and is
24698@@ -756,5 +854,65 @@ ENTRY(early_gdt_descr)
24699 .align L1_CACHE_BYTES
24700 ENTRY(boot_gdt)
24701 .fill GDT_ENTRY_BOOT_CS,8,0
24702- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
24703- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
24704+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
24705+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
24706+
24707+ .align PAGE_SIZE_asm
24708+ENTRY(cpu_gdt_table)
24709+ .rept NR_CPUS
24710+ .quad 0x0000000000000000 /* NULL descriptor */
24711+ .quad 0x0000000000000000 /* 0x0b reserved */
24712+ .quad 0x0000000000000000 /* 0x13 reserved */
24713+ .quad 0x0000000000000000 /* 0x1b reserved */
24714+
24715+#ifdef CONFIG_PAX_KERNEXEC
24716+ .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */
24717+#else
24718+ .quad 0x0000000000000000 /* 0x20 unused */
24719+#endif
24720+
24721+ .quad 0x0000000000000000 /* 0x28 unused */
24722+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
24723+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
24724+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
24725+ .quad 0x0000000000000000 /* 0x4b reserved */
24726+ .quad 0x0000000000000000 /* 0x53 reserved */
24727+ .quad 0x0000000000000000 /* 0x5b reserved */
24728+
24729+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
24730+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
24731+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
24732+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
24733+
24734+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */
24735+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */
24736+
24737+ /*
24738+ * Segments used for calling PnP BIOS have byte granularity.
24739+ * The code segments and data segments have fixed 64k limits,
24740+ * the transfer segment sizes are set at run time.
24741+ */
24742+ .quad 0x00409b000000ffff /* 0x90 32-bit code */
24743+ .quad 0x00009b000000ffff /* 0x98 16-bit code */
24744+ .quad 0x000093000000ffff /* 0xa0 16-bit data */
24745+ .quad 0x0000930000000000 /* 0xa8 16-bit data */
24746+ .quad 0x0000930000000000 /* 0xb0 16-bit data */
24747+
24748+ /*
24749+ * The APM segments have byte granularity and their bases
24750+ * are set at run time. All have 64k limits.
24751+ */
24752+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */
24753+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
24754+ .quad 0x004093000000ffff /* 0xc8 APM DS data */
24755+
24756+ .quad 0x00c093000000ffff /* 0xd0 - ESPFIX SS */
24757+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */
24758+ .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */
24759+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */
24760+ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */
24761+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
24762+
24763+ /* Be sure this is zeroed to avoid false validations in Xen */
24764+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0
24765+ .endr
24766diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
24767index 6fd514d9..320367e 100644
24768--- a/arch/x86/kernel/head_64.S
24769+++ b/arch/x86/kernel/head_64.S
24770@@ -20,6 +20,8 @@
24771 #include <asm/processor-flags.h>
24772 #include <asm/percpu.h>
24773 #include <asm/nops.h>
24774+#include <asm/cpufeature.h>
24775+#include <asm/alternative-asm.h>
24776
24777 #ifdef CONFIG_PARAVIRT
24778 #include <asm/asm-offsets.h>
24779@@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
24780 L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
24781 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
24782 L3_START_KERNEL = pud_index(__START_KERNEL_map)
24783+L4_VMALLOC_START = pgd_index(VMALLOC_START)
24784+L3_VMALLOC_START = pud_index(VMALLOC_START)
24785+L4_VMALLOC_END = pgd_index(VMALLOC_END)
24786+L3_VMALLOC_END = pud_index(VMALLOC_END)
24787+L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
24788+L3_VMEMMAP_START = pud_index(VMEMMAP_START)
24789
24790 .text
24791 __HEAD
24792@@ -89,11 +97,26 @@ startup_64:
24793 * Fixup the physical addresses in the page table
24794 */
24795 addq %rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
24796+ addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
24797+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
24798+ addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
24799+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
24800+ addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
24801
24802- addq %rbp, level3_kernel_pgt + (510*8)(%rip)
24803- addq %rbp, level3_kernel_pgt + (511*8)(%rip)
24804+ addq %rbp, level3_ident_pgt + (0*8)(%rip)
24805+#ifndef CONFIG_XEN
24806+ addq %rbp, level3_ident_pgt + (1*8)(%rip)
24807+#endif
24808
24809+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
24810+
24811+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
24812+ addq %rbp, level3_kernel_pgt + ((L3_START_KERNEL+1)*8)(%rip)
24813+
24814+ addq %rbp, level2_fixmap_pgt + (504*8)(%rip)
24815+ addq %rbp, level2_fixmap_pgt + (505*8)(%rip)
24816 addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
24817+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
24818
24819 /*
24820 * Set up the identity mapping for the switchover. These
24821@@ -174,11 +197,12 @@ ENTRY(secondary_startup_64)
24822 * after the boot processor executes this code.
24823 */
24824
24825+ orq $-1, %rbp
24826 movq $(init_level4_pgt - __START_KERNEL_map), %rax
24827 1:
24828
24829- /* Enable PAE mode and PGE */
24830- movl $(X86_CR4_PAE | X86_CR4_PGE), %ecx
24831+ /* Enable PAE mode and PSE/PGE */
24832+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
24833 movq %rcx, %cr4
24834
24835 /* Setup early boot stage 4 level pagetables. */
24836@@ -199,10 +223,21 @@ ENTRY(secondary_startup_64)
24837 movl $MSR_EFER, %ecx
24838 rdmsr
24839 btsl $_EFER_SCE, %eax /* Enable System Call */
24840- btl $20,%edi /* No Execute supported? */
24841+ btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */
24842 jnc 1f
24843 btsl $_EFER_NX, %eax
24844+ cmpq $-1, %rbp
24845+ je 1f
24846 btsq $_PAGE_BIT_NX,early_pmd_flags(%rip)
24847+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_PAGE_OFFSET(%rip)
24848+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_START(%rip)
24849+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_END(%rip)
24850+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMEMMAP_START(%rip)
24851+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*504(%rip)
24852+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*505(%rip)
24853+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*506(%rip)
24854+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*507(%rip)
24855+ btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip)
24856 1: wrmsr /* Make changes effective */
24857
24858 /* Setup cr0 */
24859@@ -282,6 +317,7 @@ ENTRY(secondary_startup_64)
24860 * REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
24861 * address given in m16:64.
24862 */
24863+ pax_set_fptr_mask
24864 movq initial_code(%rip),%rax
24865 pushq $0 # fake return address to stop unwinder
24866 pushq $__KERNEL_CS # set correct cs
24867@@ -313,7 +349,7 @@ ENDPROC(start_cpu0)
24868 .quad INIT_PER_CPU_VAR(irq_stack_union)
24869
24870 GLOBAL(stack_start)
24871- .quad init_thread_union+THREAD_SIZE-8
24872+ .quad init_thread_union+THREAD_SIZE-16
24873 .word 0
24874 __FINITDATA
24875
24876@@ -391,7 +427,7 @@ ENTRY(early_idt_handler)
24877 call dump_stack
24878 #ifdef CONFIG_KALLSYMS
24879 leaq early_idt_ripmsg(%rip),%rdi
24880- movq 40(%rsp),%rsi # %rip again
24881+ movq 88(%rsp),%rsi # %rip again
24882 call __print_symbol
24883 #endif
24884 #endif /* EARLY_PRINTK */
24885@@ -420,6 +456,7 @@ ENDPROC(early_idt_handler)
24886 early_recursion_flag:
24887 .long 0
24888
24889+ .section .rodata,"a",@progbits
24890 #ifdef CONFIG_EARLY_PRINTK
24891 early_idt_msg:
24892 .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
24893@@ -447,29 +484,52 @@ NEXT_PAGE(early_level4_pgt)
24894 NEXT_PAGE(early_dynamic_pgts)
24895 .fill 512*EARLY_DYNAMIC_PAGE_TABLES,8,0
24896
24897- .data
24898+ .section .rodata,"a",@progbits
24899
24900-#ifndef CONFIG_XEN
24901 NEXT_PAGE(init_level4_pgt)
24902- .fill 512,8,0
24903-#else
24904-NEXT_PAGE(init_level4_pgt)
24905- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24906 .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
24907 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24908+ .org init_level4_pgt + L4_VMALLOC_START*8, 0
24909+ .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
24910+ .org init_level4_pgt + L4_VMALLOC_END*8, 0
24911+ .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
24912+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0
24913+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
24914 .org init_level4_pgt + L4_START_KERNEL*8, 0
24915 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
24916 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
24917
24918+#ifdef CONFIG_PAX_PER_CPU_PGD
24919+NEXT_PAGE(cpu_pgd)
24920+ .rept 2*NR_CPUS
24921+ .fill 512,8,0
24922+ .endr
24923+#endif
24924+
24925 NEXT_PAGE(level3_ident_pgt)
24926 .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24927+#ifdef CONFIG_XEN
24928 .fill 511, 8, 0
24929+#else
24930+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
24931+ .fill 510,8,0
24932+#endif
24933+
24934+NEXT_PAGE(level3_vmalloc_start_pgt)
24935+ .fill 512,8,0
24936+
24937+NEXT_PAGE(level3_vmalloc_end_pgt)
24938+ .fill 512,8,0
24939+
24940+NEXT_PAGE(level3_vmemmap_pgt)
24941+ .fill L3_VMEMMAP_START,8,0
24942+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
24943+
24944 NEXT_PAGE(level2_ident_pgt)
24945- /* Since I easily can, map the first 1G.
24946+ /* Since I easily can, map the first 2G.
24947 * Don't set NX because code runs from these pages.
24948 */
24949- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
24950-#endif
24951+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
24952
24953 NEXT_PAGE(level3_kernel_pgt)
24954 .fill L3_START_KERNEL,8,0
24955@@ -477,6 +537,9 @@ NEXT_PAGE(level3_kernel_pgt)
24956 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
24957 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
24958
24959+NEXT_PAGE(level2_vmemmap_pgt)
24960+ .fill 512,8,0
24961+
24962 NEXT_PAGE(level2_kernel_pgt)
24963 /*
24964 * 512 MB kernel mapping. We spend a full page on this pagetable
24965@@ -492,23 +555,61 @@ NEXT_PAGE(level2_kernel_pgt)
24966 KERNEL_IMAGE_SIZE/PMD_SIZE)
24967
24968 NEXT_PAGE(level2_fixmap_pgt)
24969- .fill 506,8,0
24970- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
24971- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
24972- .fill 5,8,0
24973+ .fill 504,8,0
24974+ .quad level1_fixmap_pgt - __START_KERNEL_map + 0 * PAGE_SIZE + _PAGE_TABLE
24975+ .quad level1_fixmap_pgt - __START_KERNEL_map + 1 * PAGE_SIZE + _PAGE_TABLE
24976+ .quad level1_fixmap_pgt - __START_KERNEL_map + 2 * PAGE_SIZE + _PAGE_TABLE
24977+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
24978+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
24979+ .fill 4,8,0
24980
24981 NEXT_PAGE(level1_fixmap_pgt)
24982+ .fill 3*512,8,0
24983+
24984+NEXT_PAGE(level1_vsyscall_pgt)
24985 .fill 512,8,0
24986
24987 #undef PMDS
24988
24989- .data
24990+ .align PAGE_SIZE
24991+ENTRY(cpu_gdt_table)
24992+ .rept NR_CPUS
24993+ .quad 0x0000000000000000 /* NULL descriptor */
24994+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
24995+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
24996+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
24997+ .quad 0x00cffb000000ffff /* __USER32_CS */
24998+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
24999+ .quad 0x00affb000000ffff /* __USER_CS */
25000+
25001+#ifdef CONFIG_PAX_KERNEXEC
25002+ .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */
25003+#else
25004+ .quad 0x0 /* unused */
25005+#endif
25006+
25007+ .quad 0,0 /* TSS */
25008+ .quad 0,0 /* LDT */
25009+ .quad 0,0,0 /* three TLS descriptors */
25010+ .quad 0x0000f40000000000 /* node/CPU stored in limit */
25011+ /* asm/segment.h:GDT_ENTRIES must match this */
25012+
25013+#ifdef CONFIG_PAX_MEMORY_UDEREF
25014+ .quad 0x00cf93000000ffff /* __UDEREF_KERNEL_DS */
25015+#else
25016+ .quad 0x0 /* unused */
25017+#endif
25018+
25019+ /* zero the remaining page */
25020+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
25021+ .endr
25022+
25023 .align 16
25024 .globl early_gdt_descr
25025 early_gdt_descr:
25026 .word GDT_ENTRIES*8-1
25027 early_gdt_descr_base:
25028- .quad INIT_PER_CPU_VAR(gdt_page)
25029+ .quad cpu_gdt_table
25030
25031 ENTRY(phys_base)
25032 /* This must match the first entry in level2_kernel_pgt */
25033@@ -532,8 +633,8 @@ NEXT_PAGE(kasan_zero_pud)
25034
25035
25036 #include "../../x86/xen/xen-head.S"
25037-
25038- __PAGE_ALIGNED_BSS
25039+
25040+ .section .rodata,"a",@progbits
25041 NEXT_PAGE(empty_zero_page)
25042 .skip PAGE_SIZE
25043
25044diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
25045index 05fd74f..c3548b1 100644
25046--- a/arch/x86/kernel/i386_ksyms_32.c
25047+++ b/arch/x86/kernel/i386_ksyms_32.c
25048@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
25049 EXPORT_SYMBOL(cmpxchg8b_emu);
25050 #endif
25051
25052+EXPORT_SYMBOL_GPL(cpu_gdt_table);
25053+
25054 /* Networking helper routines. */
25055 EXPORT_SYMBOL(csum_partial_copy_generic);
25056+EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
25057+EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
25058
25059 EXPORT_SYMBOL(__get_user_1);
25060 EXPORT_SYMBOL(__get_user_2);
25061@@ -44,3 +48,11 @@ EXPORT_SYMBOL(___preempt_schedule);
25062 EXPORT_SYMBOL(___preempt_schedule_context);
25063 #endif
25064 #endif
25065+
25066+#ifdef CONFIG_PAX_KERNEXEC
25067+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
25068+#endif
25069+
25070+#ifdef CONFIG_PAX_PER_CPU_PGD
25071+EXPORT_SYMBOL(cpu_pgd);
25072+#endif
25073diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
25074index d5651fc..29c740d 100644
25075--- a/arch/x86/kernel/i387.c
25076+++ b/arch/x86/kernel/i387.c
25077@@ -68,7 +68,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
25078 static inline bool interrupted_user_mode(void)
25079 {
25080 struct pt_regs *regs = get_irq_regs();
25081- return regs && user_mode_vm(regs);
25082+ return regs && user_mode(regs);
25083 }
25084
25085 /*
25086diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
25087index e7cc537..67d7372 100644
25088--- a/arch/x86/kernel/i8259.c
25089+++ b/arch/x86/kernel/i8259.c
25090@@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
25091 static void make_8259A_irq(unsigned int irq)
25092 {
25093 disable_irq_nosync(irq);
25094- io_apic_irqs &= ~(1<<irq);
25095+ io_apic_irqs &= ~(1UL<<irq);
25096 irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
25097 enable_irq(irq);
25098 }
25099@@ -208,7 +208,7 @@ spurious_8259A_irq:
25100 "spurious 8259A interrupt: IRQ%d.\n", irq);
25101 spurious_irq_mask |= irqmask;
25102 }
25103- atomic_inc(&irq_err_count);
25104+ atomic_inc_unchecked(&irq_err_count);
25105 /*
25106 * Theoretically we do not have to handle this IRQ,
25107 * but in Linux this does not cause problems and is
25108@@ -349,14 +349,16 @@ static void init_8259A(int auto_eoi)
25109 /* (slave's support for AEOI in flat mode is to be investigated) */
25110 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
25111
25112+ pax_open_kernel();
25113 if (auto_eoi)
25114 /*
25115 * In AEOI mode we just have to mask the interrupt
25116 * when acking.
25117 */
25118- i8259A_chip.irq_mask_ack = disable_8259A_irq;
25119+ *(void **)&i8259A_chip.irq_mask_ack = disable_8259A_irq;
25120 else
25121- i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
25122+ *(void **)&i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
25123+ pax_close_kernel();
25124
25125 udelay(100); /* wait for 8259A to initialize */
25126
25127diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
25128index a979b5b..1d6db75 100644
25129--- a/arch/x86/kernel/io_delay.c
25130+++ b/arch/x86/kernel/io_delay.c
25131@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
25132 * Quirk table for systems that misbehave (lock up, etc.) if port
25133 * 0x80 is used:
25134 */
25135-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
25136+static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
25137 {
25138 .callback = dmi_io_delay_0xed_port,
25139 .ident = "Compaq Presario V6000",
25140diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
25141index 4ddaf66..49d5c18 100644
25142--- a/arch/x86/kernel/ioport.c
25143+++ b/arch/x86/kernel/ioport.c
25144@@ -6,6 +6,7 @@
25145 #include <linux/sched.h>
25146 #include <linux/kernel.h>
25147 #include <linux/capability.h>
25148+#include <linux/security.h>
25149 #include <linux/errno.h>
25150 #include <linux/types.h>
25151 #include <linux/ioport.h>
25152@@ -30,6 +31,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
25153 return -EINVAL;
25154 if (turn_on && !capable(CAP_SYS_RAWIO))
25155 return -EPERM;
25156+#ifdef CONFIG_GRKERNSEC_IO
25157+ if (turn_on && grsec_disable_privio) {
25158+ gr_handle_ioperm();
25159+ return -ENODEV;
25160+ }
25161+#endif
25162
25163 /*
25164 * If it's the first ioperm() call in this thread's lifetime, set the
25165@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
25166 * because the ->io_bitmap_max value must match the bitmap
25167 * contents:
25168 */
25169- tss = &per_cpu(init_tss, get_cpu());
25170+ tss = init_tss + get_cpu();
25171
25172 if (turn_on)
25173 bitmap_clear(t->io_bitmap_ptr, from, num);
25174@@ -105,6 +112,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
25175 if (level > old) {
25176 if (!capable(CAP_SYS_RAWIO))
25177 return -EPERM;
25178+#ifdef CONFIG_GRKERNSEC_IO
25179+ if (grsec_disable_privio) {
25180+ gr_handle_iopl();
25181+ return -ENODEV;
25182+ }
25183+#endif
25184 }
25185 regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
25186 t->iopl = level << 12;
25187diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
25188index 67b1cbe..6ad4cbc 100644
25189--- a/arch/x86/kernel/irq.c
25190+++ b/arch/x86/kernel/irq.c
25191@@ -22,7 +22,7 @@
25192 #define CREATE_TRACE_POINTS
25193 #include <asm/trace/irq_vectors.h>
25194
25195-atomic_t irq_err_count;
25196+atomic_unchecked_t irq_err_count;
25197
25198 /* Function pointer for generic interrupt vector handling */
25199 void (*x86_platform_ipi_callback)(void) = NULL;
25200@@ -132,9 +132,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
25201 seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count);
25202 seq_puts(p, " Hypervisor callback interrupts\n");
25203 #endif
25204- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
25205+ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
25206 #if defined(CONFIG_X86_IO_APIC)
25207- seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
25208+ seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
25209 #endif
25210 return 0;
25211 }
25212@@ -174,7 +174,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
25213
25214 u64 arch_irq_stat(void)
25215 {
25216- u64 sum = atomic_read(&irq_err_count);
25217+ u64 sum = atomic_read_unchecked(&irq_err_count);
25218 return sum;
25219 }
25220
25221diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
25222index 28d28f5..e6cc9ae 100644
25223--- a/arch/x86/kernel/irq_32.c
25224+++ b/arch/x86/kernel/irq_32.c
25225@@ -29,6 +29,8 @@ EXPORT_PER_CPU_SYMBOL(irq_regs);
25226
25227 #ifdef CONFIG_DEBUG_STACKOVERFLOW
25228
25229+extern void gr_handle_kernel_exploit(void);
25230+
25231 int sysctl_panic_on_stackoverflow __read_mostly;
25232
25233 /* Debugging check for stack overflow: is there less than 1KB free? */
25234@@ -39,13 +41,14 @@ static int check_stack_overflow(void)
25235 __asm__ __volatile__("andl %%esp,%0" :
25236 "=r" (sp) : "0" (THREAD_SIZE - 1));
25237
25238- return sp < (sizeof(struct thread_info) + STACK_WARN);
25239+ return sp < STACK_WARN;
25240 }
25241
25242 static void print_stack_overflow(void)
25243 {
25244 printk(KERN_WARNING "low stack detected by irq handler\n");
25245 dump_stack();
25246+ gr_handle_kernel_exploit();
25247 if (sysctl_panic_on_stackoverflow)
25248 panic("low stack detected by irq handler - check messages\n");
25249 }
25250@@ -77,10 +80,9 @@ static inline void *current_stack(void)
25251 static inline int
25252 execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25253 {
25254- struct irq_stack *curstk, *irqstk;
25255+ struct irq_stack *irqstk;
25256 u32 *isp, *prev_esp, arg1, arg2;
25257
25258- curstk = (struct irq_stack *) current_stack();
25259 irqstk = __this_cpu_read(hardirq_stack);
25260
25261 /*
25262@@ -89,15 +91,19 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25263 * handler) we can't do that and just have to keep using the
25264 * current stack (which is the irq stack already after all)
25265 */
25266- if (unlikely(curstk == irqstk))
25267+ if (unlikely((void *)current_stack_pointer - (void *)irqstk < THREAD_SIZE))
25268 return 0;
25269
25270- isp = (u32 *) ((char *)irqstk + sizeof(*irqstk));
25271+ isp = (u32 *) ((char *)irqstk + sizeof(*irqstk) - 8);
25272
25273 /* Save the next esp at the bottom of the stack */
25274 prev_esp = (u32 *)irqstk;
25275 *prev_esp = current_stack_pointer();
25276
25277+#ifdef CONFIG_PAX_MEMORY_UDEREF
25278+ __set_fs(MAKE_MM_SEG(0));
25279+#endif
25280+
25281 if (unlikely(overflow))
25282 call_on_stack(print_stack_overflow, isp);
25283
25284@@ -108,6 +114,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25285 : "0" (irq), "1" (desc), "2" (isp),
25286 "D" (desc->handle_irq)
25287 : "memory", "cc", "ecx");
25288+
25289+#ifdef CONFIG_PAX_MEMORY_UDEREF
25290+ __set_fs(current_thread_info()->addr_limit);
25291+#endif
25292+
25293 return 1;
25294 }
25295
25296@@ -116,32 +127,18 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25297 */
25298 void irq_ctx_init(int cpu)
25299 {
25300- struct irq_stack *irqstk;
25301-
25302 if (per_cpu(hardirq_stack, cpu))
25303 return;
25304
25305- irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25306- THREADINFO_GFP,
25307- THREAD_SIZE_ORDER));
25308- per_cpu(hardirq_stack, cpu) = irqstk;
25309-
25310- irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25311- THREADINFO_GFP,
25312- THREAD_SIZE_ORDER));
25313- per_cpu(softirq_stack, cpu) = irqstk;
25314-
25315- printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
25316- cpu, per_cpu(hardirq_stack, cpu), per_cpu(softirq_stack, cpu));
25317+ per_cpu(hardirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25318+ per_cpu(softirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25319 }
25320
25321 void do_softirq_own_stack(void)
25322 {
25323- struct thread_info *curstk;
25324 struct irq_stack *irqstk;
25325 u32 *isp, *prev_esp;
25326
25327- curstk = current_stack();
25328 irqstk = __this_cpu_read(softirq_stack);
25329
25330 /* build the stack frame on the softirq stack */
25331@@ -151,7 +148,16 @@ void do_softirq_own_stack(void)
25332 prev_esp = (u32 *)irqstk;
25333 *prev_esp = current_stack_pointer();
25334
25335+#ifdef CONFIG_PAX_MEMORY_UDEREF
25336+ __set_fs(MAKE_MM_SEG(0));
25337+#endif
25338+
25339 call_on_stack(__do_softirq, isp);
25340+
25341+#ifdef CONFIG_PAX_MEMORY_UDEREF
25342+ __set_fs(current_thread_info()->addr_limit);
25343+#endif
25344+
25345 }
25346
25347 bool handle_irq(unsigned irq, struct pt_regs *regs)
25348@@ -165,7 +171,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
25349 if (unlikely(!desc))
25350 return false;
25351
25352- if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25353+ if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25354 if (unlikely(overflow))
25355 print_stack_overflow();
25356 desc->handle_irq(irq, desc);
25357diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
25358index e4b503d..824fce8 100644
25359--- a/arch/x86/kernel/irq_64.c
25360+++ b/arch/x86/kernel/irq_64.c
25361@@ -26,6 +26,8 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
25362 DEFINE_PER_CPU(struct pt_regs *, irq_regs);
25363 EXPORT_PER_CPU_SYMBOL(irq_regs);
25364
25365+extern void gr_handle_kernel_exploit(void);
25366+
25367 int sysctl_panic_on_stackoverflow;
25368
25369 /*
25370@@ -44,7 +46,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25371 u64 estack_top, estack_bottom;
25372 u64 curbase = (u64)task_stack_page(current);
25373
25374- if (user_mode_vm(regs))
25375+ if (user_mode(regs))
25376 return;
25377
25378 if (regs->sp >= curbase + sizeof(struct thread_info) +
25379@@ -69,6 +71,8 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25380 irq_stack_top, irq_stack_bottom,
25381 estack_top, estack_bottom);
25382
25383+ gr_handle_kernel_exploit();
25384+
25385 if (sysctl_panic_on_stackoverflow)
25386 panic("low stack detected by irq handler - check messages\n");
25387 #endif
25388diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
25389index 26d5a55..a01160a 100644
25390--- a/arch/x86/kernel/jump_label.c
25391+++ b/arch/x86/kernel/jump_label.c
25392@@ -51,7 +51,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25393 * Jump label is enabled for the first time.
25394 * So we expect a default_nop...
25395 */
25396- if (unlikely(memcmp((void *)entry->code, default_nop, 5)
25397+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5)
25398 != 0))
25399 bug_at((void *)entry->code, __LINE__);
25400 } else {
25401@@ -59,7 +59,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25402 * ...otherwise expect an ideal_nop. Otherwise
25403 * something went horribly wrong.
25404 */
25405- if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
25406+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), ideal_nop, 5)
25407 != 0))
25408 bug_at((void *)entry->code, __LINE__);
25409 }
25410@@ -75,13 +75,13 @@ static void __jump_label_transform(struct jump_entry *entry,
25411 * are converting the default nop to the ideal nop.
25412 */
25413 if (init) {
25414- if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
25415+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5) != 0))
25416 bug_at((void *)entry->code, __LINE__);
25417 } else {
25418 code.jump = 0xe9;
25419 code.offset = entry->target -
25420 (entry->code + JUMP_LABEL_NOP_SIZE);
25421- if (unlikely(memcmp((void *)entry->code, &code, 5) != 0))
25422+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), &code, 5) != 0))
25423 bug_at((void *)entry->code, __LINE__);
25424 }
25425 memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE);
25426diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
25427index 25ecd56..e12482f 100644
25428--- a/arch/x86/kernel/kgdb.c
25429+++ b/arch/x86/kernel/kgdb.c
25430@@ -126,11 +126,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
25431 #ifdef CONFIG_X86_32
25432 switch (regno) {
25433 case GDB_SS:
25434- if (!user_mode_vm(regs))
25435+ if (!user_mode(regs))
25436 *(unsigned long *)mem = __KERNEL_DS;
25437 break;
25438 case GDB_SP:
25439- if (!user_mode_vm(regs))
25440+ if (!user_mode(regs))
25441 *(unsigned long *)mem = kernel_stack_pointer(regs);
25442 break;
25443 case GDB_GS:
25444@@ -228,7 +228,10 @@ static void kgdb_correct_hw_break(void)
25445 bp->attr.bp_addr = breakinfo[breakno].addr;
25446 bp->attr.bp_len = breakinfo[breakno].len;
25447 bp->attr.bp_type = breakinfo[breakno].type;
25448- info->address = breakinfo[breakno].addr;
25449+ if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
25450+ info->address = ktla_ktva(breakinfo[breakno].addr);
25451+ else
25452+ info->address = breakinfo[breakno].addr;
25453 info->len = breakinfo[breakno].len;
25454 info->type = breakinfo[breakno].type;
25455 val = arch_install_hw_breakpoint(bp);
25456@@ -475,12 +478,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
25457 case 'k':
25458 /* clear the trace bit */
25459 linux_regs->flags &= ~X86_EFLAGS_TF;
25460- atomic_set(&kgdb_cpu_doing_single_step, -1);
25461+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
25462
25463 /* set the trace bit if we're stepping */
25464 if (remcomInBuffer[0] == 's') {
25465 linux_regs->flags |= X86_EFLAGS_TF;
25466- atomic_set(&kgdb_cpu_doing_single_step,
25467+ atomic_set_unchecked(&kgdb_cpu_doing_single_step,
25468 raw_smp_processor_id());
25469 }
25470
25471@@ -545,7 +548,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
25472
25473 switch (cmd) {
25474 case DIE_DEBUG:
25475- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
25476+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
25477 if (user_mode(regs))
25478 return single_step_cont(regs, args);
25479 break;
25480@@ -750,11 +753,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25481 #endif /* CONFIG_DEBUG_RODATA */
25482
25483 bpt->type = BP_BREAKPOINT;
25484- err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
25485+ err = probe_kernel_read(bpt->saved_instr, ktla_ktva((char *)bpt->bpt_addr),
25486 BREAK_INSTR_SIZE);
25487 if (err)
25488 return err;
25489- err = probe_kernel_write((char *)bpt->bpt_addr,
25490+ err = probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25491 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
25492 #ifdef CONFIG_DEBUG_RODATA
25493 if (!err)
25494@@ -767,7 +770,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25495 return -EBUSY;
25496 text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
25497 BREAK_INSTR_SIZE);
25498- err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25499+ err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25500 if (err)
25501 return err;
25502 if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
25503@@ -792,13 +795,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
25504 if (mutex_is_locked(&text_mutex))
25505 goto knl_write;
25506 text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
25507- err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25508+ err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25509 if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
25510 goto knl_write;
25511 return err;
25512 knl_write:
25513 #endif /* CONFIG_DEBUG_RODATA */
25514- return probe_kernel_write((char *)bpt->bpt_addr,
25515+ return probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25516 (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
25517 }
25518
25519diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
25520index 4e3d5a9..03fffd8 100644
25521--- a/arch/x86/kernel/kprobes/core.c
25522+++ b/arch/x86/kernel/kprobes/core.c
25523@@ -120,9 +120,12 @@ __synthesize_relative_insn(void *from, void *to, u8 op)
25524 s32 raddr;
25525 } __packed *insn;
25526
25527- insn = (struct __arch_relative_insn *)from;
25528+ insn = (struct __arch_relative_insn *)ktla_ktva(from);
25529+
25530+ pax_open_kernel();
25531 insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
25532 insn->op = op;
25533+ pax_close_kernel();
25534 }
25535
25536 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
25537@@ -168,7 +171,7 @@ int can_boost(kprobe_opcode_t *opcodes)
25538 kprobe_opcode_t opcode;
25539 kprobe_opcode_t *orig_opcodes = opcodes;
25540
25541- if (search_exception_tables((unsigned long)opcodes))
25542+ if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
25543 return 0; /* Page fault may occur on this address. */
25544
25545 retry:
25546@@ -260,12 +263,12 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
25547 * Fortunately, we know that the original code is the ideal 5-byte
25548 * long NOP.
25549 */
25550- memcpy(buf, (void *)addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25551+ memcpy(buf, (void *)ktla_ktva(addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25552 if (faddr)
25553 memcpy(buf, ideal_nops[NOP_ATOMIC5], 5);
25554 else
25555 buf[0] = kp->opcode;
25556- return (unsigned long)buf;
25557+ return ktva_ktla((unsigned long)buf);
25558 }
25559
25560 /*
25561@@ -364,7 +367,9 @@ int __copy_instruction(u8 *dest, u8 *src)
25562 /* Another subsystem puts a breakpoint, failed to recover */
25563 if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
25564 return 0;
25565+ pax_open_kernel();
25566 memcpy(dest, insn.kaddr, insn.length);
25567+ pax_close_kernel();
25568
25569 #ifdef CONFIG_X86_64
25570 if (insn_rip_relative(&insn)) {
25571@@ -391,7 +396,9 @@ int __copy_instruction(u8 *dest, u8 *src)
25572 return 0;
25573 }
25574 disp = (u8 *) dest + insn_offset_displacement(&insn);
25575+ pax_open_kernel();
25576 *(s32 *) disp = (s32) newdisp;
25577+ pax_close_kernel();
25578 }
25579 #endif
25580 return insn.length;
25581@@ -533,7 +540,7 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
25582 * nor set current_kprobe, because it doesn't use single
25583 * stepping.
25584 */
25585- regs->ip = (unsigned long)p->ainsn.insn;
25586+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25587 preempt_enable_no_resched();
25588 return;
25589 }
25590@@ -550,9 +557,9 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
25591 regs->flags &= ~X86_EFLAGS_IF;
25592 /* single step inline if the instruction is an int3 */
25593 if (p->opcode == BREAKPOINT_INSTRUCTION)
25594- regs->ip = (unsigned long)p->addr;
25595+ regs->ip = ktla_ktva((unsigned long)p->addr);
25596 else
25597- regs->ip = (unsigned long)p->ainsn.insn;
25598+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25599 }
25600 NOKPROBE_SYMBOL(setup_singlestep);
25601
25602@@ -602,7 +609,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
25603 struct kprobe *p;
25604 struct kprobe_ctlblk *kcb;
25605
25606- if (user_mode_vm(regs))
25607+ if (user_mode(regs))
25608 return 0;
25609
25610 addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
25611@@ -637,7 +644,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
25612 setup_singlestep(p, regs, kcb, 0);
25613 return 1;
25614 }
25615- } else if (*addr != BREAKPOINT_INSTRUCTION) {
25616+ } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
25617 /*
25618 * The breakpoint instruction was removed right
25619 * after we hit it. Another cpu has removed
25620@@ -684,6 +691,9 @@ static void __used kretprobe_trampoline_holder(void)
25621 " movq %rax, 152(%rsp)\n"
25622 RESTORE_REGS_STRING
25623 " popfq\n"
25624+#ifdef KERNEXEC_PLUGIN
25625+ " btsq $63,(%rsp)\n"
25626+#endif
25627 #else
25628 " pushf\n"
25629 SAVE_REGS_STRING
25630@@ -824,7 +834,7 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs,
25631 struct kprobe_ctlblk *kcb)
25632 {
25633 unsigned long *tos = stack_addr(regs);
25634- unsigned long copy_ip = (unsigned long)p->ainsn.insn;
25635+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
25636 unsigned long orig_ip = (unsigned long)p->addr;
25637 kprobe_opcode_t *insn = p->ainsn.insn;
25638
25639@@ -1007,7 +1017,7 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
25640 struct die_args *args = data;
25641 int ret = NOTIFY_DONE;
25642
25643- if (args->regs && user_mode_vm(args->regs))
25644+ if (args->regs && user_mode(args->regs))
25645 return ret;
25646
25647 if (val == DIE_GPF) {
25648diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
25649index 7b3b9d1..e2478b91 100644
25650--- a/arch/x86/kernel/kprobes/opt.c
25651+++ b/arch/x86/kernel/kprobes/opt.c
25652@@ -79,6 +79,7 @@ found:
25653 /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
25654 static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
25655 {
25656+ pax_open_kernel();
25657 #ifdef CONFIG_X86_64
25658 *addr++ = 0x48;
25659 *addr++ = 0xbf;
25660@@ -86,6 +87,7 @@ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
25661 *addr++ = 0xb8;
25662 #endif
25663 *(unsigned long *)addr = val;
25664+ pax_close_kernel();
25665 }
25666
25667 asm (
25668@@ -342,7 +344,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
25669 * Verify if the address gap is in 2GB range, because this uses
25670 * a relative jump.
25671 */
25672- rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
25673+ rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
25674 if (abs(rel) > 0x7fffffff) {
25675 __arch_remove_optimized_kprobe(op, 0);
25676 return -ERANGE;
25677@@ -359,16 +361,18 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
25678 op->optinsn.size = ret;
25679
25680 /* Copy arch-dep-instance from template */
25681- memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
25682+ pax_open_kernel();
25683+ memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
25684+ pax_close_kernel();
25685
25686 /* Set probe information */
25687 synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
25688
25689 /* Set probe function call */
25690- synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
25691+ synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
25692
25693 /* Set returning jmp instruction at the tail of out-of-line buffer */
25694- synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
25695+ synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
25696 (u8 *)op->kp.addr + op->optinsn.size);
25697
25698 flush_icache_range((unsigned long) buf,
25699@@ -393,7 +397,7 @@ void arch_optimize_kprobes(struct list_head *oplist)
25700 WARN_ON(kprobe_disabled(&op->kp));
25701
25702 /* Backup instructions which will be replaced by jump address */
25703- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
25704+ memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
25705 RELATIVE_ADDR_SIZE);
25706
25707 insn_buf[0] = RELATIVEJUMP_OPCODE;
25708@@ -441,7 +445,7 @@ int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
25709 /* This kprobe is really able to run optimized path. */
25710 op = container_of(p, struct optimized_kprobe, kp);
25711 /* Detour through copied instructions */
25712- regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
25713+ regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
25714 if (!reenter)
25715 reset_current_kprobe();
25716 preempt_enable_no_resched();
25717diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
25718index c2bedae..25e7ab60 100644
25719--- a/arch/x86/kernel/ksysfs.c
25720+++ b/arch/x86/kernel/ksysfs.c
25721@@ -184,7 +184,7 @@ out:
25722
25723 static struct kobj_attribute type_attr = __ATTR_RO(type);
25724
25725-static struct bin_attribute data_attr = {
25726+static bin_attribute_no_const data_attr __read_only = {
25727 .attr = {
25728 .name = "data",
25729 .mode = S_IRUGO,
25730diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
25731index c37886d..d851d32 100644
25732--- a/arch/x86/kernel/ldt.c
25733+++ b/arch/x86/kernel/ldt.c
25734@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
25735 if (reload) {
25736 #ifdef CONFIG_SMP
25737 preempt_disable();
25738- load_LDT(pc);
25739+ load_LDT_nolock(pc);
25740 if (!cpumask_equal(mm_cpumask(current->mm),
25741 cpumask_of(smp_processor_id())))
25742 smp_call_function(flush_ldt, current->mm, 1);
25743 preempt_enable();
25744 #else
25745- load_LDT(pc);
25746+ load_LDT_nolock(pc);
25747 #endif
25748 }
25749 if (oldsize) {
25750@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
25751 return err;
25752
25753 for (i = 0; i < old->size; i++)
25754- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
25755+ write_ldt_entry(new->ldt, i, old->ldt + i);
25756 return 0;
25757 }
25758
25759@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
25760 retval = copy_ldt(&mm->context, &old_mm->context);
25761 mutex_unlock(&old_mm->context.lock);
25762 }
25763+
25764+ if (tsk == current) {
25765+ mm->context.vdso = 0;
25766+
25767+#ifdef CONFIG_X86_32
25768+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
25769+ mm->context.user_cs_base = 0UL;
25770+ mm->context.user_cs_limit = ~0UL;
25771+
25772+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
25773+ cpus_clear(mm->context.cpu_user_cs_mask);
25774+#endif
25775+
25776+#endif
25777+#endif
25778+
25779+ }
25780+
25781 return retval;
25782 }
25783
25784@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
25785 }
25786 }
25787
25788+#ifdef CONFIG_PAX_SEGMEXEC
25789+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
25790+ error = -EINVAL;
25791+ goto out_unlock;
25792+ }
25793+#endif
25794+
25795 if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {
25796 error = -EINVAL;
25797 goto out_unlock;
25798diff --git a/arch/x86/kernel/livepatch.c b/arch/x86/kernel/livepatch.c
25799index ff3c3101d..d7c0cd8 100644
25800--- a/arch/x86/kernel/livepatch.c
25801+++ b/arch/x86/kernel/livepatch.c
25802@@ -41,9 +41,10 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
25803 int ret, numpages, size = 4;
25804 bool readonly;
25805 unsigned long val;
25806- unsigned long core = (unsigned long)mod->module_core;
25807- unsigned long core_ro_size = mod->core_ro_size;
25808- unsigned long core_size = mod->core_size;
25809+ unsigned long core_rx = (unsigned long)mod->module_core_rx;
25810+ unsigned long core_rw = (unsigned long)mod->module_core_rw;
25811+ unsigned long core_size_rx = mod->core_size_rx;
25812+ unsigned long core_size_rw = mod->core_size_rw;
25813
25814 switch (type) {
25815 case R_X86_64_NONE:
25816@@ -66,11 +67,12 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
25817 return -EINVAL;
25818 }
25819
25820- if (loc < core || loc >= core + core_size)
25821+ if ((loc < core_rx || loc >= core_rx + core_size_rx) &&
25822+ (loc < core_rw || loc >= core_rw + core_size_rw))
25823 /* loc does not point to any symbol inside the module */
25824 return -EINVAL;
25825
25826- if (loc < core + core_ro_size)
25827+ if (loc < core_rx + core_size_rx)
25828 readonly = true;
25829 else
25830 readonly = false;
25831diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
25832index 469b23d..5449cfe 100644
25833--- a/arch/x86/kernel/machine_kexec_32.c
25834+++ b/arch/x86/kernel/machine_kexec_32.c
25835@@ -26,7 +26,7 @@
25836 #include <asm/cacheflush.h>
25837 #include <asm/debugreg.h>
25838
25839-static void set_idt(void *newidt, __u16 limit)
25840+static void set_idt(struct desc_struct *newidt, __u16 limit)
25841 {
25842 struct desc_ptr curidt;
25843
25844@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit)
25845 }
25846
25847
25848-static void set_gdt(void *newgdt, __u16 limit)
25849+static void set_gdt(struct desc_struct *newgdt, __u16 limit)
25850 {
25851 struct desc_ptr curgdt;
25852
25853@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image)
25854 }
25855
25856 control_page = page_address(image->control_code_page);
25857- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
25858+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
25859
25860 relocate_kernel_ptr = control_page;
25861 page_list[PA_CONTROL_PAGE] = __pa(control_page);
25862diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S
25863index 94ea120..4154cea 100644
25864--- a/arch/x86/kernel/mcount_64.S
25865+++ b/arch/x86/kernel/mcount_64.S
25866@@ -7,7 +7,7 @@
25867 #include <linux/linkage.h>
25868 #include <asm/ptrace.h>
25869 #include <asm/ftrace.h>
25870-
25871+#include <asm/alternative-asm.h>
25872
25873 .code64
25874 .section .entry.text, "ax"
25875@@ -148,8 +148,9 @@
25876 #ifdef CONFIG_DYNAMIC_FTRACE
25877
25878 ENTRY(function_hook)
25879+ pax_force_retaddr
25880 retq
25881-END(function_hook)
25882+ENDPROC(function_hook)
25883
25884 ENTRY(ftrace_caller)
25885 /* save_mcount_regs fills in first two parameters */
25886@@ -181,8 +182,9 @@ GLOBAL(ftrace_graph_call)
25887 #endif
25888
25889 GLOBAL(ftrace_stub)
25890+ pax_force_retaddr
25891 retq
25892-END(ftrace_caller)
25893+ENDPROC(ftrace_caller)
25894
25895 ENTRY(ftrace_regs_caller)
25896 /* Save the current flags before any operations that can change them */
25897@@ -253,7 +255,7 @@ GLOBAL(ftrace_regs_caller_end)
25898
25899 jmp ftrace_return
25900
25901-END(ftrace_regs_caller)
25902+ENDPROC(ftrace_regs_caller)
25903
25904
25905 #else /* ! CONFIG_DYNAMIC_FTRACE */
25906@@ -272,18 +274,20 @@ fgraph_trace:
25907 #endif
25908
25909 GLOBAL(ftrace_stub)
25910+ pax_force_retaddr
25911 retq
25912
25913 trace:
25914 /* save_mcount_regs fills in first two parameters */
25915 save_mcount_regs
25916
25917+ pax_force_fptr ftrace_trace_function
25918 call *ftrace_trace_function
25919
25920 restore_mcount_regs
25921
25922 jmp fgraph_trace
25923-END(function_hook)
25924+ENDPROC(function_hook)
25925 #endif /* CONFIG_DYNAMIC_FTRACE */
25926 #endif /* CONFIG_FUNCTION_TRACER */
25927
25928@@ -305,8 +309,9 @@ ENTRY(ftrace_graph_caller)
25929
25930 restore_mcount_regs
25931
25932+ pax_force_retaddr
25933 retq
25934-END(ftrace_graph_caller)
25935+ENDPROC(ftrace_graph_caller)
25936
25937 GLOBAL(return_to_handler)
25938 subq $24, %rsp
25939@@ -322,5 +327,7 @@ GLOBAL(return_to_handler)
25940 movq 8(%rsp), %rdx
25941 movq (%rsp), %rax
25942 addq $24, %rsp
25943+ pax_force_fptr %rdi
25944 jmp *%rdi
25945+ENDPROC(return_to_handler)
25946 #endif
25947diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
25948index d1ac80b..f593701 100644
25949--- a/arch/x86/kernel/module.c
25950+++ b/arch/x86/kernel/module.c
25951@@ -82,17 +82,17 @@ static unsigned long int get_module_load_offset(void)
25952 }
25953 #endif
25954
25955-void *module_alloc(unsigned long size)
25956+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
25957 {
25958 void *p;
25959
25960- if (PAGE_ALIGN(size) > MODULES_LEN)
25961+ if (!size || PAGE_ALIGN(size) > MODULES_LEN)
25962 return NULL;
25963
25964 p = __vmalloc_node_range(size, MODULE_ALIGN,
25965 MODULES_VADDR + get_module_load_offset(),
25966- MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
25967- PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
25968+ MODULES_END, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
25969+ prot, 0, NUMA_NO_NODE,
25970 __builtin_return_address(0));
25971 if (p && (kasan_module_alloc(p, size) < 0)) {
25972 vfree(p);
25973@@ -102,6 +102,51 @@ void *module_alloc(unsigned long size)
25974 return p;
25975 }
25976
25977+void *module_alloc(unsigned long size)
25978+{
25979+
25980+#ifdef CONFIG_PAX_KERNEXEC
25981+ return __module_alloc(size, PAGE_KERNEL);
25982+#else
25983+ return __module_alloc(size, PAGE_KERNEL_EXEC);
25984+#endif
25985+
25986+}
25987+
25988+#ifdef CONFIG_PAX_KERNEXEC
25989+#ifdef CONFIG_X86_32
25990+void *module_alloc_exec(unsigned long size)
25991+{
25992+ struct vm_struct *area;
25993+
25994+ if (size == 0)
25995+ return NULL;
25996+
25997+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
25998+return area ? area->addr : NULL;
25999+}
26000+EXPORT_SYMBOL(module_alloc_exec);
26001+
26002+void module_memfree_exec(void *module_region)
26003+{
26004+ vunmap(module_region);
26005+}
26006+EXPORT_SYMBOL(module_memfree_exec);
26007+#else
26008+void module_memfree_exec(void *module_region)
26009+{
26010+ module_memfree(module_region);
26011+}
26012+EXPORT_SYMBOL(module_memfree_exec);
26013+
26014+void *module_alloc_exec(unsigned long size)
26015+{
26016+ return __module_alloc(size, PAGE_KERNEL_RX);
26017+}
26018+EXPORT_SYMBOL(module_alloc_exec);
26019+#endif
26020+#endif
26021+
26022 #ifdef CONFIG_X86_32
26023 int apply_relocate(Elf32_Shdr *sechdrs,
26024 const char *strtab,
26025@@ -112,14 +157,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
26026 unsigned int i;
26027 Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
26028 Elf32_Sym *sym;
26029- uint32_t *location;
26030+ uint32_t *plocation, location;
26031
26032 DEBUGP("Applying relocate section %u to %u\n",
26033 relsec, sechdrs[relsec].sh_info);
26034 for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
26035 /* This is where to make the change */
26036- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
26037- + rel[i].r_offset;
26038+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
26039+ location = (uint32_t)plocation;
26040+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
26041+ plocation = ktla_ktva((void *)plocation);
26042 /* This is the symbol it is referring to. Note that all
26043 undefined symbols have been resolved. */
26044 sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
26045@@ -128,11 +175,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
26046 switch (ELF32_R_TYPE(rel[i].r_info)) {
26047 case R_386_32:
26048 /* We add the value into the location given */
26049- *location += sym->st_value;
26050+ pax_open_kernel();
26051+ *plocation += sym->st_value;
26052+ pax_close_kernel();
26053 break;
26054 case R_386_PC32:
26055 /* Add the value, subtract its position */
26056- *location += sym->st_value - (uint32_t)location;
26057+ pax_open_kernel();
26058+ *plocation += sym->st_value - location;
26059+ pax_close_kernel();
26060 break;
26061 default:
26062 pr_err("%s: Unknown relocation: %u\n",
26063@@ -177,21 +228,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
26064 case R_X86_64_NONE:
26065 break;
26066 case R_X86_64_64:
26067+ pax_open_kernel();
26068 *(u64 *)loc = val;
26069+ pax_close_kernel();
26070 break;
26071 case R_X86_64_32:
26072+ pax_open_kernel();
26073 *(u32 *)loc = val;
26074+ pax_close_kernel();
26075 if (val != *(u32 *)loc)
26076 goto overflow;
26077 break;
26078 case R_X86_64_32S:
26079+ pax_open_kernel();
26080 *(s32 *)loc = val;
26081+ pax_close_kernel();
26082 if ((s64)val != *(s32 *)loc)
26083 goto overflow;
26084 break;
26085 case R_X86_64_PC32:
26086 val -= (u64)loc;
26087+ pax_open_kernel();
26088 *(u32 *)loc = val;
26089+ pax_close_kernel();
26090+
26091 #if 0
26092 if ((s64)val != *(s32 *)loc)
26093 goto overflow;
26094diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
26095index 113e707..0a690e1 100644
26096--- a/arch/x86/kernel/msr.c
26097+++ b/arch/x86/kernel/msr.c
26098@@ -39,6 +39,7 @@
26099 #include <linux/notifier.h>
26100 #include <linux/uaccess.h>
26101 #include <linux/gfp.h>
26102+#include <linux/grsecurity.h>
26103
26104 #include <asm/processor.h>
26105 #include <asm/msr.h>
26106@@ -105,6 +106,11 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
26107 int err = 0;
26108 ssize_t bytes = 0;
26109
26110+#ifdef CONFIG_GRKERNSEC_KMEM
26111+ gr_handle_msr_write();
26112+ return -EPERM;
26113+#endif
26114+
26115 if (count % 8)
26116 return -EINVAL; /* Invalid chunk size */
26117
26118@@ -152,6 +158,10 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
26119 err = -EBADF;
26120 break;
26121 }
26122+#ifdef CONFIG_GRKERNSEC_KMEM
26123+ gr_handle_msr_write();
26124+ return -EPERM;
26125+#endif
26126 if (copy_from_user(&regs, uregs, sizeof regs)) {
26127 err = -EFAULT;
26128 break;
26129@@ -235,7 +245,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
26130 return notifier_from_errno(err);
26131 }
26132
26133-static struct notifier_block __refdata msr_class_cpu_notifier = {
26134+static struct notifier_block msr_class_cpu_notifier = {
26135 .notifier_call = msr_class_cpu_callback,
26136 };
26137
26138diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
26139index c3e985d..110a36a 100644
26140--- a/arch/x86/kernel/nmi.c
26141+++ b/arch/x86/kernel/nmi.c
26142@@ -98,16 +98,16 @@ fs_initcall(nmi_warning_debugfs);
26143
26144 static void nmi_max_handler(struct irq_work *w)
26145 {
26146- struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
26147+ struct nmiwork *n = container_of(w, struct nmiwork, irq_work);
26148 int remainder_ns, decimal_msecs;
26149- u64 whole_msecs = ACCESS_ONCE(a->max_duration);
26150+ u64 whole_msecs = ACCESS_ONCE(n->max_duration);
26151
26152 remainder_ns = do_div(whole_msecs, (1000 * 1000));
26153 decimal_msecs = remainder_ns / 1000;
26154
26155 printk_ratelimited(KERN_INFO
26156 "INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
26157- a->handler, whole_msecs, decimal_msecs);
26158+ n->action->handler, whole_msecs, decimal_msecs);
26159 }
26160
26161 static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26162@@ -134,11 +134,11 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26163 delta = sched_clock() - delta;
26164 trace_nmi_handler(a->handler, (int)delta, thishandled);
26165
26166- if (delta < nmi_longest_ns || delta < a->max_duration)
26167+ if (delta < nmi_longest_ns || delta < a->work->max_duration)
26168 continue;
26169
26170- a->max_duration = delta;
26171- irq_work_queue(&a->irq_work);
26172+ a->work->max_duration = delta;
26173+ irq_work_queue(&a->work->irq_work);
26174 }
26175
26176 rcu_read_unlock();
26177@@ -148,7 +148,7 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26178 }
26179 NOKPROBE_SYMBOL(nmi_handle);
26180
26181-int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26182+int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
26183 {
26184 struct nmi_desc *desc = nmi_to_desc(type);
26185 unsigned long flags;
26186@@ -156,7 +156,8 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26187 if (!action->handler)
26188 return -EINVAL;
26189
26190- init_irq_work(&action->irq_work, nmi_max_handler);
26191+ action->work->action = action;
26192+ init_irq_work(&action->work->irq_work, nmi_max_handler);
26193
26194 spin_lock_irqsave(&desc->lock, flags);
26195
26196@@ -174,9 +175,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26197 * event confuses some handlers (kdump uses this flag)
26198 */
26199 if (action->flags & NMI_FLAG_FIRST)
26200- list_add_rcu(&action->list, &desc->head);
26201+ pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
26202 else
26203- list_add_tail_rcu(&action->list, &desc->head);
26204+ pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
26205
26206 spin_unlock_irqrestore(&desc->lock, flags);
26207 return 0;
26208@@ -199,7 +200,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
26209 if (!strcmp(n->name, name)) {
26210 WARN(in_nmi(),
26211 "Trying to free NMI (%s) from NMI context!\n", n->name);
26212- list_del_rcu(&n->list);
26213+ pax_list_del_rcu((struct list_head *)&n->list);
26214 break;
26215 }
26216 }
26217@@ -528,6 +529,17 @@ static inline void nmi_nesting_postprocess(void)
26218 dotraplinkage notrace void
26219 do_nmi(struct pt_regs *regs, long error_code)
26220 {
26221+
26222+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
26223+ if (!user_mode(regs)) {
26224+ unsigned long cs = regs->cs & 0xFFFF;
26225+ unsigned long ip = ktva_ktla(regs->ip);
26226+
26227+ if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
26228+ regs->ip = ip;
26229+ }
26230+#endif
26231+
26232 nmi_nesting_preprocess(regs);
26233
26234 nmi_enter();
26235diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
26236index 6d9582e..f746287 100644
26237--- a/arch/x86/kernel/nmi_selftest.c
26238+++ b/arch/x86/kernel/nmi_selftest.c
26239@@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
26240 {
26241 /* trap all the unknown NMIs we may generate */
26242 register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
26243- __initdata);
26244+ __initconst);
26245 }
26246
26247 static void __init cleanup_nmi_testsuite(void)
26248@@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
26249 unsigned long timeout;
26250
26251 if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
26252- NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
26253+ NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
26254 nmi_fail = FAILURE;
26255 return;
26256 }
26257diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
26258index bbb6c73..24a58ef 100644
26259--- a/arch/x86/kernel/paravirt-spinlocks.c
26260+++ b/arch/x86/kernel/paravirt-spinlocks.c
26261@@ -8,7 +8,7 @@
26262
26263 #include <asm/paravirt.h>
26264
26265-struct pv_lock_ops pv_lock_ops = {
26266+struct pv_lock_ops pv_lock_ops __read_only = {
26267 #ifdef CONFIG_SMP
26268 .lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
26269 .unlock_kick = paravirt_nop,
26270diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
26271index 548d25f..f8fb99c 100644
26272--- a/arch/x86/kernel/paravirt.c
26273+++ b/arch/x86/kernel/paravirt.c
26274@@ -56,6 +56,9 @@ u64 _paravirt_ident_64(u64 x)
26275 {
26276 return x;
26277 }
26278+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
26279+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
26280+#endif
26281
26282 void __init default_banner(void)
26283 {
26284@@ -142,16 +145,20 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
26285
26286 if (opfunc == NULL)
26287 /* If there's no function, patch it with a ud2a (BUG) */
26288- ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
26289- else if (opfunc == _paravirt_nop)
26290+ ret = paravirt_patch_insns(insnbuf, len, ktva_ktla(ud2a), ud2a+sizeof(ud2a));
26291+ else if (opfunc == (void *)_paravirt_nop)
26292 /* If the operation is a nop, then nop the callsite */
26293 ret = paravirt_patch_nop();
26294
26295 /* identity functions just return their single argument */
26296- else if (opfunc == _paravirt_ident_32)
26297+ else if (opfunc == (void *)_paravirt_ident_32)
26298 ret = paravirt_patch_ident_32(insnbuf, len);
26299- else if (opfunc == _paravirt_ident_64)
26300+ else if (opfunc == (void *)_paravirt_ident_64)
26301 ret = paravirt_patch_ident_64(insnbuf, len);
26302+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
26303+ else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
26304+ ret = paravirt_patch_ident_64(insnbuf, len);
26305+#endif
26306
26307 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
26308 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
26309@@ -176,7 +183,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
26310 if (insn_len > len || start == NULL)
26311 insn_len = len;
26312 else
26313- memcpy(insnbuf, start, insn_len);
26314+ memcpy(insnbuf, ktla_ktva(start), insn_len);
26315
26316 return insn_len;
26317 }
26318@@ -300,7 +307,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
26319 return this_cpu_read(paravirt_lazy_mode);
26320 }
26321
26322-struct pv_info pv_info = {
26323+struct pv_info pv_info __read_only = {
26324 .name = "bare hardware",
26325 .paravirt_enabled = 0,
26326 .kernel_rpl = 0,
26327@@ -311,16 +318,16 @@ struct pv_info pv_info = {
26328 #endif
26329 };
26330
26331-struct pv_init_ops pv_init_ops = {
26332+struct pv_init_ops pv_init_ops __read_only = {
26333 .patch = native_patch,
26334 };
26335
26336-struct pv_time_ops pv_time_ops = {
26337+struct pv_time_ops pv_time_ops __read_only = {
26338 .sched_clock = native_sched_clock,
26339 .steal_clock = native_steal_clock,
26340 };
26341
26342-__visible struct pv_irq_ops pv_irq_ops = {
26343+__visible struct pv_irq_ops pv_irq_ops __read_only = {
26344 .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
26345 .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
26346 .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
26347@@ -332,7 +339,7 @@ __visible struct pv_irq_ops pv_irq_ops = {
26348 #endif
26349 };
26350
26351-__visible struct pv_cpu_ops pv_cpu_ops = {
26352+__visible struct pv_cpu_ops pv_cpu_ops __read_only = {
26353 .cpuid = native_cpuid,
26354 .get_debugreg = native_get_debugreg,
26355 .set_debugreg = native_set_debugreg,
26356@@ -395,21 +402,26 @@ NOKPROBE_SYMBOL(native_get_debugreg);
26357 NOKPROBE_SYMBOL(native_set_debugreg);
26358 NOKPROBE_SYMBOL(native_load_idt);
26359
26360-struct pv_apic_ops pv_apic_ops = {
26361+struct pv_apic_ops pv_apic_ops __read_only= {
26362 #ifdef CONFIG_X86_LOCAL_APIC
26363 .startup_ipi_hook = paravirt_nop,
26364 #endif
26365 };
26366
26367-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
26368+#ifdef CONFIG_X86_32
26369+#ifdef CONFIG_X86_PAE
26370+/* 64-bit pagetable entries */
26371+#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64)
26372+#else
26373 /* 32-bit pagetable entries */
26374 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
26375+#endif
26376 #else
26377 /* 64-bit pagetable entries */
26378 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
26379 #endif
26380
26381-struct pv_mmu_ops pv_mmu_ops = {
26382+struct pv_mmu_ops pv_mmu_ops __read_only = {
26383
26384 .read_cr2 = native_read_cr2,
26385 .write_cr2 = native_write_cr2,
26386@@ -459,6 +471,7 @@ struct pv_mmu_ops pv_mmu_ops = {
26387 .make_pud = PTE_IDENT,
26388
26389 .set_pgd = native_set_pgd,
26390+ .set_pgd_batched = native_set_pgd_batched,
26391 #endif
26392 #endif /* PAGETABLE_LEVELS >= 3 */
26393
26394@@ -479,6 +492,12 @@ struct pv_mmu_ops pv_mmu_ops = {
26395 },
26396
26397 .set_fixmap = native_set_fixmap,
26398+
26399+#ifdef CONFIG_PAX_KERNEXEC
26400+ .pax_open_kernel = native_pax_open_kernel,
26401+ .pax_close_kernel = native_pax_close_kernel,
26402+#endif
26403+
26404 };
26405
26406 EXPORT_SYMBOL_GPL(pv_time_ops);
26407diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
26408index a1da673..b6f5831 100644
26409--- a/arch/x86/kernel/paravirt_patch_64.c
26410+++ b/arch/x86/kernel/paravirt_patch_64.c
26411@@ -9,7 +9,11 @@ DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
26412 DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
26413 DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
26414 DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
26415+
26416+#ifndef CONFIG_PAX_MEMORY_UDEREF
26417 DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
26418+#endif
26419+
26420 DEF_NATIVE(pv_cpu_ops, clts, "clts");
26421 DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
26422
26423@@ -57,7 +61,11 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
26424 PATCH_SITE(pv_mmu_ops, read_cr3);
26425 PATCH_SITE(pv_mmu_ops, write_cr3);
26426 PATCH_SITE(pv_cpu_ops, clts);
26427+
26428+#ifndef CONFIG_PAX_MEMORY_UDEREF
26429 PATCH_SITE(pv_mmu_ops, flush_tlb_single);
26430+#endif
26431+
26432 PATCH_SITE(pv_cpu_ops, wbinvd);
26433
26434 patch_site:
26435diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
26436index 0497f71..7186c0d 100644
26437--- a/arch/x86/kernel/pci-calgary_64.c
26438+++ b/arch/x86/kernel/pci-calgary_64.c
26439@@ -1347,7 +1347,7 @@ static void __init get_tce_space_from_tar(void)
26440 tce_space = be64_to_cpu(readq(target));
26441 tce_space = tce_space & TAR_SW_BITS;
26442
26443- tce_space = tce_space & (~specified_table_size);
26444+ tce_space = tce_space & (~(unsigned long)specified_table_size);
26445 info->tce_space = (u64 *)__va(tce_space);
26446 }
26447 }
26448diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
26449index 35ccf75..7a15747 100644
26450--- a/arch/x86/kernel/pci-iommu_table.c
26451+++ b/arch/x86/kernel/pci-iommu_table.c
26452@@ -2,7 +2,7 @@
26453 #include <asm/iommu_table.h>
26454 #include <linux/string.h>
26455 #include <linux/kallsyms.h>
26456-
26457+#include <linux/sched.h>
26458
26459 #define DEBUG 1
26460
26461diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
26462index 77dd0ad..9ec4723 100644
26463--- a/arch/x86/kernel/pci-swiotlb.c
26464+++ b/arch/x86/kernel/pci-swiotlb.c
26465@@ -33,7 +33,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
26466 struct dma_attrs *attrs)
26467 {
26468 if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
26469- swiotlb_free_coherent(dev, size, vaddr, dma_addr);
26470+ swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
26471 else
26472 dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
26473 }
26474diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
26475index a388bb8..97064ad 100644
26476--- a/arch/x86/kernel/process.c
26477+++ b/arch/x86/kernel/process.c
26478@@ -38,7 +38,8 @@
26479 * section. Since TSS's are completely CPU-local, we want them
26480 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
26481 */
26482-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
26483+struct tss_struct init_tss[NR_CPUS] __visible ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
26484+EXPORT_SYMBOL(init_tss);
26485
26486 #ifdef CONFIG_X86_64
26487 static DEFINE_PER_CPU(unsigned char, is_idle);
26488@@ -96,7 +97,7 @@ void arch_task_cache_init(void)
26489 task_xstate_cachep =
26490 kmem_cache_create("task_xstate", xstate_size,
26491 __alignof__(union thread_xstate),
26492- SLAB_PANIC | SLAB_NOTRACK, NULL);
26493+ SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
26494 setup_xstate_comp();
26495 }
26496
26497@@ -110,7 +111,7 @@ void exit_thread(void)
26498 unsigned long *bp = t->io_bitmap_ptr;
26499
26500 if (bp) {
26501- struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
26502+ struct tss_struct *tss = init_tss + get_cpu();
26503
26504 t->io_bitmap_ptr = NULL;
26505 clear_thread_flag(TIF_IO_BITMAP);
26506@@ -130,6 +131,9 @@ void flush_thread(void)
26507 {
26508 struct task_struct *tsk = current;
26509
26510+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
26511+ loadsegment(gs, 0);
26512+#endif
26513 flush_ptrace_hw_breakpoint(tsk);
26514 memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
26515 drop_init_fpu(tsk);
26516@@ -276,7 +280,7 @@ static void __exit_idle(void)
26517 void exit_idle(void)
26518 {
26519 /* idle loop has pid 0 */
26520- if (current->pid)
26521+ if (task_pid_nr(current))
26522 return;
26523 __exit_idle();
26524 }
26525@@ -329,7 +333,7 @@ bool xen_set_default_idle(void)
26526 return ret;
26527 }
26528 #endif
26529-void stop_this_cpu(void *dummy)
26530+__noreturn void stop_this_cpu(void *dummy)
26531 {
26532 local_irq_disable();
26533 /*
26534@@ -508,16 +512,37 @@ static int __init idle_setup(char *str)
26535 }
26536 early_param("idle", idle_setup);
26537
26538-unsigned long arch_align_stack(unsigned long sp)
26539+#ifdef CONFIG_PAX_RANDKSTACK
26540+void pax_randomize_kstack(struct pt_regs *regs)
26541 {
26542- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
26543- sp -= get_random_int() % 8192;
26544- return sp & ~0xf;
26545-}
26546+ struct thread_struct *thread = &current->thread;
26547+ unsigned long time;
26548
26549-unsigned long arch_randomize_brk(struct mm_struct *mm)
26550-{
26551- unsigned long range_end = mm->brk + 0x02000000;
26552- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
26553-}
26554+ if (!randomize_va_space)
26555+ return;
26556+
26557+ if (v8086_mode(regs))
26558+ return;
26559
26560+ rdtscl(time);
26561+
26562+ /* P4 seems to return a 0 LSB, ignore it */
26563+#ifdef CONFIG_MPENTIUM4
26564+ time &= 0x3EUL;
26565+ time <<= 2;
26566+#elif defined(CONFIG_X86_64)
26567+ time &= 0xFUL;
26568+ time <<= 4;
26569+#else
26570+ time &= 0x1FUL;
26571+ time <<= 3;
26572+#endif
26573+
26574+ thread->sp0 ^= time;
26575+ load_sp0(init_tss + smp_processor_id(), thread);
26576+
26577+#ifdef CONFIG_X86_64
26578+ this_cpu_write(kernel_stack, thread->sp0);
26579+#endif
26580+}
26581+#endif
26582diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
26583index 603c4f9..3a105d7 100644
26584--- a/arch/x86/kernel/process_32.c
26585+++ b/arch/x86/kernel/process_32.c
26586@@ -64,6 +64,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
26587 unsigned long thread_saved_pc(struct task_struct *tsk)
26588 {
26589 return ((unsigned long *)tsk->thread.sp)[3];
26590+//XXX return tsk->thread.eip;
26591 }
26592
26593 void __show_regs(struct pt_regs *regs, int all)
26594@@ -73,19 +74,18 @@ void __show_regs(struct pt_regs *regs, int all)
26595 unsigned long sp;
26596 unsigned short ss, gs;
26597
26598- if (user_mode_vm(regs)) {
26599+ if (user_mode(regs)) {
26600 sp = regs->sp;
26601 ss = regs->ss & 0xffff;
26602- gs = get_user_gs(regs);
26603 } else {
26604 sp = kernel_stack_pointer(regs);
26605 savesegment(ss, ss);
26606- savesegment(gs, gs);
26607 }
26608+ gs = get_user_gs(regs);
26609
26610 printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
26611 (u16)regs->cs, regs->ip, regs->flags,
26612- smp_processor_id());
26613+ raw_smp_processor_id());
26614 print_symbol("EIP is at %s\n", regs->ip);
26615
26616 printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
26617@@ -132,21 +132,22 @@ void release_thread(struct task_struct *dead_task)
26618 int copy_thread(unsigned long clone_flags, unsigned long sp,
26619 unsigned long arg, struct task_struct *p)
26620 {
26621- struct pt_regs *childregs = task_pt_regs(p);
26622+ struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
26623 struct task_struct *tsk;
26624 int err;
26625
26626 p->thread.sp = (unsigned long) childregs;
26627 p->thread.sp0 = (unsigned long) (childregs+1);
26628+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
26629 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
26630
26631 if (unlikely(p->flags & PF_KTHREAD)) {
26632 /* kernel thread */
26633 memset(childregs, 0, sizeof(struct pt_regs));
26634 p->thread.ip = (unsigned long) ret_from_kernel_thread;
26635- task_user_gs(p) = __KERNEL_STACK_CANARY;
26636- childregs->ds = __USER_DS;
26637- childregs->es = __USER_DS;
26638+ savesegment(gs, childregs->gs);
26639+ childregs->ds = __KERNEL_DS;
26640+ childregs->es = __KERNEL_DS;
26641 childregs->fs = __KERNEL_PERCPU;
26642 childregs->bx = sp; /* function */
26643 childregs->bp = arg;
26644@@ -248,7 +249,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26645 struct thread_struct *prev = &prev_p->thread,
26646 *next = &next_p->thread;
26647 int cpu = smp_processor_id();
26648- struct tss_struct *tss = &per_cpu(init_tss, cpu);
26649+ struct tss_struct *tss = init_tss + cpu;
26650 fpu_switch_t fpu;
26651
26652 /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
26653@@ -272,6 +273,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26654 */
26655 lazy_save_gs(prev->gs);
26656
26657+#ifdef CONFIG_PAX_MEMORY_UDEREF
26658+ __set_fs(task_thread_info(next_p)->addr_limit);
26659+#endif
26660+
26661 /*
26662 * Load the per-thread Thread-Local Storage descriptor.
26663 */
26664@@ -310,9 +315,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26665 */
26666 arch_end_context_switch(next_p);
26667
26668- this_cpu_write(kernel_stack,
26669- (unsigned long)task_stack_page(next_p) +
26670- THREAD_SIZE - KERNEL_STACK_OFFSET);
26671+ this_cpu_write(current_task, next_p);
26672+ this_cpu_write(current_tinfo, &next_p->tinfo);
26673+ this_cpu_write(kernel_stack, next->sp0);
26674
26675 /*
26676 * Restore %gs if needed (which is common)
26677@@ -322,8 +327,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26678
26679 switch_fpu_finish(next_p, fpu);
26680
26681- this_cpu_write(current_task, next_p);
26682-
26683 return prev_p;
26684 }
26685
26686@@ -353,4 +356,3 @@ unsigned long get_wchan(struct task_struct *p)
26687 } while (count++ < 16);
26688 return 0;
26689 }
26690-
26691diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
26692index 67fcc43..0d2c630 100644
26693--- a/arch/x86/kernel/process_64.c
26694+++ b/arch/x86/kernel/process_64.c
26695@@ -158,10 +158,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26696 struct pt_regs *childregs;
26697 struct task_struct *me = current;
26698
26699- p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
26700+ p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
26701 childregs = task_pt_regs(p);
26702 p->thread.sp = (unsigned long) childregs;
26703 p->thread.usersp = me->thread.usersp;
26704+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
26705 set_tsk_thread_flag(p, TIF_FORK);
26706 p->thread.io_bitmap_ptr = NULL;
26707
26708@@ -171,6 +172,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26709 p->thread.fs = p->thread.fsindex ? 0 : me->thread.fs;
26710 savesegment(es, p->thread.es);
26711 savesegment(ds, p->thread.ds);
26712+ savesegment(ss, p->thread.ss);
26713+ BUG_ON(p->thread.ss == __UDEREF_KERNEL_DS);
26714 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
26715
26716 if (unlikely(p->flags & PF_KTHREAD)) {
26717@@ -277,7 +280,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26718 struct thread_struct *prev = &prev_p->thread;
26719 struct thread_struct *next = &next_p->thread;
26720 int cpu = smp_processor_id();
26721- struct tss_struct *tss = &per_cpu(init_tss, cpu);
26722+ struct tss_struct *tss = init_tss + cpu;
26723 unsigned fsindex, gsindex;
26724 fpu_switch_t fpu;
26725
26726@@ -331,6 +334,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26727 if (unlikely(next->ds | prev->ds))
26728 loadsegment(ds, next->ds);
26729
26730+ savesegment(ss, prev->ss);
26731+ if (unlikely(next->ss != prev->ss))
26732+ loadsegment(ss, next->ss);
26733+
26734 /*
26735 * Switch FS and GS.
26736 *
26737@@ -404,6 +411,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26738 prev->usersp = this_cpu_read(old_rsp);
26739 this_cpu_write(old_rsp, next->usersp);
26740 this_cpu_write(current_task, next_p);
26741+ this_cpu_write(current_tinfo, &next_p->tinfo);
26742
26743 /*
26744 * If it were not for PREEMPT_ACTIVE we could guarantee that the
26745@@ -413,9 +421,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26746 task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
26747 this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
26748
26749- this_cpu_write(kernel_stack,
26750- (unsigned long)task_stack_page(next_p) +
26751- THREAD_SIZE - KERNEL_STACK_OFFSET);
26752+ this_cpu_write(kernel_stack, next->sp0);
26753
26754 /*
26755 * Now maybe reload the debug registers and handle I/O bitmaps
26756@@ -485,12 +491,11 @@ unsigned long get_wchan(struct task_struct *p)
26757 if (!p || p == current || p->state == TASK_RUNNING)
26758 return 0;
26759 stack = (unsigned long)task_stack_page(p);
26760- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
26761+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
26762 return 0;
26763 fp = *(u64 *)(p->thread.sp);
26764 do {
26765- if (fp < (unsigned long)stack ||
26766- fp >= (unsigned long)stack+THREAD_SIZE)
26767+ if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
26768 return 0;
26769 ip = *(u64 *)(fp+8);
26770 if (!in_sched_functions(ip))
26771diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
26772index e510618..5165ac0 100644
26773--- a/arch/x86/kernel/ptrace.c
26774+++ b/arch/x86/kernel/ptrace.c
26775@@ -186,10 +186,10 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
26776 unsigned long sp = (unsigned long)&regs->sp;
26777 u32 *prev_esp;
26778
26779- if (context == (sp & ~(THREAD_SIZE - 1)))
26780+ if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
26781 return sp;
26782
26783- prev_esp = (u32 *)(context);
26784+ prev_esp = *(u32 **)(context);
26785 if (prev_esp)
26786 return (unsigned long)prev_esp;
26787
26788@@ -452,6 +452,20 @@ static int putreg(struct task_struct *child,
26789 if (child->thread.gs != value)
26790 return do_arch_prctl(child, ARCH_SET_GS, value);
26791 return 0;
26792+
26793+ case offsetof(struct user_regs_struct,ip):
26794+ /*
26795+ * Protect against any attempt to set ip to an
26796+ * impossible address. There are dragons lurking if the
26797+ * address is noncanonical. (This explicitly allows
26798+ * setting ip to TASK_SIZE_MAX, because user code can do
26799+ * that all by itself by running off the end of its
26800+ * address space.
26801+ */
26802+ if (value > TASK_SIZE_MAX)
26803+ return -EIO;
26804+ break;
26805+
26806 #endif
26807 }
26808
26809@@ -588,7 +602,7 @@ static void ptrace_triggered(struct perf_event *bp,
26810 static unsigned long ptrace_get_dr7(struct perf_event *bp[])
26811 {
26812 int i;
26813- int dr7 = 0;
26814+ unsigned long dr7 = 0;
26815 struct arch_hw_breakpoint *info;
26816
26817 for (i = 0; i < HBP_NUM; i++) {
26818@@ -822,7 +836,7 @@ long arch_ptrace(struct task_struct *child, long request,
26819 unsigned long addr, unsigned long data)
26820 {
26821 int ret;
26822- unsigned long __user *datap = (unsigned long __user *)data;
26823+ unsigned long __user *datap = (__force unsigned long __user *)data;
26824
26825 switch (request) {
26826 /* read the word at location addr in the USER area. */
26827@@ -907,14 +921,14 @@ long arch_ptrace(struct task_struct *child, long request,
26828 if ((int) addr < 0)
26829 return -EIO;
26830 ret = do_get_thread_area(child, addr,
26831- (struct user_desc __user *)data);
26832+ (__force struct user_desc __user *) data);
26833 break;
26834
26835 case PTRACE_SET_THREAD_AREA:
26836 if ((int) addr < 0)
26837 return -EIO;
26838 ret = do_set_thread_area(child, addr,
26839- (struct user_desc __user *)data, 0);
26840+ (__force struct user_desc __user *) data, 0);
26841 break;
26842 #endif
26843
26844@@ -1292,7 +1306,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
26845
26846 #ifdef CONFIG_X86_64
26847
26848-static struct user_regset x86_64_regsets[] __read_mostly = {
26849+static user_regset_no_const x86_64_regsets[] __read_only = {
26850 [REGSET_GENERAL] = {
26851 .core_note_type = NT_PRSTATUS,
26852 .n = sizeof(struct user_regs_struct) / sizeof(long),
26853@@ -1333,7 +1347,7 @@ static const struct user_regset_view user_x86_64_view = {
26854 #endif /* CONFIG_X86_64 */
26855
26856 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
26857-static struct user_regset x86_32_regsets[] __read_mostly = {
26858+static user_regset_no_const x86_32_regsets[] __read_only = {
26859 [REGSET_GENERAL] = {
26860 .core_note_type = NT_PRSTATUS,
26861 .n = sizeof(struct user_regs_struct32) / sizeof(u32),
26862@@ -1386,7 +1400,7 @@ static const struct user_regset_view user_x86_32_view = {
26863 */
26864 u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
26865
26866-void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26867+void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26868 {
26869 #ifdef CONFIG_X86_64
26870 x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
26871@@ -1421,7 +1435,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
26872 memset(info, 0, sizeof(*info));
26873 info->si_signo = SIGTRAP;
26874 info->si_code = si_code;
26875- info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
26876+ info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
26877 }
26878
26879 void user_single_step_siginfo(struct task_struct *tsk,
26880@@ -1455,6 +1469,10 @@ static void do_audit_syscall_entry(struct pt_regs *regs, u32 arch)
26881 }
26882 }
26883
26884+#ifdef CONFIG_GRKERNSEC_SETXID
26885+extern void gr_delayed_cred_worker(void);
26886+#endif
26887+
26888 /*
26889 * We can return 0 to resume the syscall or anything else to go to phase
26890 * 2. If we resume the syscall, we need to put something appropriate in
26891@@ -1562,6 +1580,11 @@ long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
26892
26893 BUG_ON(regs != task_pt_regs(current));
26894
26895+#ifdef CONFIG_GRKERNSEC_SETXID
26896+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26897+ gr_delayed_cred_worker();
26898+#endif
26899+
26900 /*
26901 * If we stepped into a sysenter/syscall insn, it trapped in
26902 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
26903@@ -1620,6 +1643,11 @@ void syscall_trace_leave(struct pt_regs *regs)
26904 */
26905 user_exit();
26906
26907+#ifdef CONFIG_GRKERNSEC_SETXID
26908+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26909+ gr_delayed_cred_worker();
26910+#endif
26911+
26912 audit_syscall_exit(regs);
26913
26914 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
26915diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
26916index e5ecd20..60f7eef 100644
26917--- a/arch/x86/kernel/pvclock.c
26918+++ b/arch/x86/kernel/pvclock.c
26919@@ -51,11 +51,11 @@ void pvclock_touch_watchdogs(void)
26920 reset_hung_task_detector();
26921 }
26922
26923-static atomic64_t last_value = ATOMIC64_INIT(0);
26924+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
26925
26926 void pvclock_resume(void)
26927 {
26928- atomic64_set(&last_value, 0);
26929+ atomic64_set_unchecked(&last_value, 0);
26930 }
26931
26932 u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
26933@@ -105,11 +105,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
26934 * updating at the same time, and one of them could be slightly behind,
26935 * making the assumption that last_value always go forward fail to hold.
26936 */
26937- last = atomic64_read(&last_value);
26938+ last = atomic64_read_unchecked(&last_value);
26939 do {
26940 if (ret < last)
26941 return last;
26942- last = atomic64_cmpxchg(&last_value, last, ret);
26943+ last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
26944 } while (unlikely(last != ret));
26945
26946 return ret;
26947diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
26948index 86db4bc..a50a54a 100644
26949--- a/arch/x86/kernel/reboot.c
26950+++ b/arch/x86/kernel/reboot.c
26951@@ -70,6 +70,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
26952
26953 void __noreturn machine_real_restart(unsigned int type)
26954 {
26955+
26956+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
26957+ struct desc_struct *gdt;
26958+#endif
26959+
26960 local_irq_disable();
26961
26962 /*
26963@@ -97,7 +102,29 @@ void __noreturn machine_real_restart(unsigned int type)
26964
26965 /* Jump to the identity-mapped low memory code */
26966 #ifdef CONFIG_X86_32
26967- asm volatile("jmpl *%0" : :
26968+
26969+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
26970+ gdt = get_cpu_gdt_table(smp_processor_id());
26971+ pax_open_kernel();
26972+#ifdef CONFIG_PAX_MEMORY_UDEREF
26973+ gdt[GDT_ENTRY_KERNEL_DS].type = 3;
26974+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
26975+ loadsegment(ds, __KERNEL_DS);
26976+ loadsegment(es, __KERNEL_DS);
26977+ loadsegment(ss, __KERNEL_DS);
26978+#endif
26979+#ifdef CONFIG_PAX_KERNEXEC
26980+ gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
26981+ gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
26982+ gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
26983+ gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
26984+ gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
26985+ gdt[GDT_ENTRY_KERNEL_CS].g = 1;
26986+#endif
26987+ pax_close_kernel();
26988+#endif
26989+
26990+ asm volatile("ljmpl *%0" : :
26991 "rm" (real_mode_header->machine_real_restart_asm),
26992 "a" (type));
26993 #else
26994@@ -137,7 +164,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
26995 /*
26996 * This is a single dmi_table handling all reboot quirks.
26997 */
26998-static struct dmi_system_id __initdata reboot_dmi_table[] = {
26999+static const struct dmi_system_id __initconst reboot_dmi_table[] = {
27000
27001 /* Acer */
27002 { /* Handle reboot issue on Acer Aspire one */
27003@@ -511,7 +538,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
27004 * This means that this function can never return, it can misbehave
27005 * by not rebooting properly and hanging.
27006 */
27007-static void native_machine_emergency_restart(void)
27008+static void __noreturn native_machine_emergency_restart(void)
27009 {
27010 int i;
27011 int attempt = 0;
27012@@ -631,13 +658,13 @@ void native_machine_shutdown(void)
27013 #endif
27014 }
27015
27016-static void __machine_emergency_restart(int emergency)
27017+static void __noreturn __machine_emergency_restart(int emergency)
27018 {
27019 reboot_emergency = emergency;
27020 machine_ops.emergency_restart();
27021 }
27022
27023-static void native_machine_restart(char *__unused)
27024+static void __noreturn native_machine_restart(char *__unused)
27025 {
27026 pr_notice("machine restart\n");
27027
27028@@ -646,7 +673,7 @@ static void native_machine_restart(char *__unused)
27029 __machine_emergency_restart(0);
27030 }
27031
27032-static void native_machine_halt(void)
27033+static void __noreturn native_machine_halt(void)
27034 {
27035 /* Stop other cpus and apics */
27036 machine_shutdown();
27037@@ -656,7 +683,7 @@ static void native_machine_halt(void)
27038 stop_this_cpu(NULL);
27039 }
27040
27041-static void native_machine_power_off(void)
27042+static void __noreturn native_machine_power_off(void)
27043 {
27044 if (pm_power_off) {
27045 if (!reboot_force)
27046@@ -665,9 +692,10 @@ static void native_machine_power_off(void)
27047 }
27048 /* A fallback in case there is no PM info available */
27049 tboot_shutdown(TB_SHUTDOWN_HALT);
27050+ unreachable();
27051 }
27052
27053-struct machine_ops machine_ops = {
27054+struct machine_ops machine_ops __read_only = {
27055 .power_off = native_machine_power_off,
27056 .shutdown = native_machine_shutdown,
27057 .emergency_restart = native_machine_emergency_restart,
27058diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
27059index c8e41e9..64049ef 100644
27060--- a/arch/x86/kernel/reboot_fixups_32.c
27061+++ b/arch/x86/kernel/reboot_fixups_32.c
27062@@ -57,7 +57,7 @@ struct device_fixup {
27063 unsigned int vendor;
27064 unsigned int device;
27065 void (*reboot_fixup)(struct pci_dev *);
27066-};
27067+} __do_const;
27068
27069 /*
27070 * PCI ids solely used for fixups_table go here
27071diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
27072index 3fd2c69..a444264 100644
27073--- a/arch/x86/kernel/relocate_kernel_64.S
27074+++ b/arch/x86/kernel/relocate_kernel_64.S
27075@@ -96,8 +96,7 @@ relocate_kernel:
27076
27077 /* jump to identity mapped page */
27078 addq $(identity_mapped - relocate_kernel), %r8
27079- pushq %r8
27080- ret
27081+ jmp *%r8
27082
27083 identity_mapped:
27084 /* set return address to 0 if not preserving context */
27085diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
27086index 0a2421c..11f3f36 100644
27087--- a/arch/x86/kernel/setup.c
27088+++ b/arch/x86/kernel/setup.c
27089@@ -111,6 +111,7 @@
27090 #include <asm/mce.h>
27091 #include <asm/alternative.h>
27092 #include <asm/prom.h>
27093+#include <asm/boot.h>
27094
27095 /*
27096 * max_low_pfn_mapped: highest direct mapped pfn under 4GB
27097@@ -206,10 +207,12 @@ EXPORT_SYMBOL(boot_cpu_data);
27098 #endif
27099
27100
27101-#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
27102-__visible unsigned long mmu_cr4_features;
27103+#ifdef CONFIG_X86_64
27104+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE;
27105+#elif defined(CONFIG_X86_PAE)
27106+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PAE;
27107 #else
27108-__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
27109+__visible unsigned long mmu_cr4_features __read_only;
27110 #endif
27111
27112 /* Boot loader ID and version as integers, for the benefit of proc_dointvec */
27113@@ -771,7 +774,7 @@ static void __init trim_bios_range(void)
27114 * area (640->1Mb) as ram even though it is not.
27115 * take them out.
27116 */
27117- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
27118+ e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
27119
27120 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
27121 }
27122@@ -779,7 +782,7 @@ static void __init trim_bios_range(void)
27123 /* called before trim_bios_range() to spare extra sanitize */
27124 static void __init e820_add_kernel_range(void)
27125 {
27126- u64 start = __pa_symbol(_text);
27127+ u64 start = __pa_symbol(ktla_ktva(_text));
27128 u64 size = __pa_symbol(_end) - start;
27129
27130 /*
27131@@ -855,8 +858,12 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
27132
27133 void __init setup_arch(char **cmdline_p)
27134 {
27135+#ifdef CONFIG_X86_32
27136+ memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(__bss_stop) - LOAD_PHYSICAL_ADDR);
27137+#else
27138 memblock_reserve(__pa_symbol(_text),
27139 (unsigned long)__bss_stop - (unsigned long)_text);
27140+#endif
27141
27142 early_reserve_initrd();
27143
27144@@ -954,16 +961,16 @@ void __init setup_arch(char **cmdline_p)
27145
27146 if (!boot_params.hdr.root_flags)
27147 root_mountflags &= ~MS_RDONLY;
27148- init_mm.start_code = (unsigned long) _text;
27149- init_mm.end_code = (unsigned long) _etext;
27150+ init_mm.start_code = ktla_ktva((unsigned long) _text);
27151+ init_mm.end_code = ktla_ktva((unsigned long) _etext);
27152 init_mm.end_data = (unsigned long) _edata;
27153 init_mm.brk = _brk_end;
27154
27155 mpx_mm_init(&init_mm);
27156
27157- code_resource.start = __pa_symbol(_text);
27158- code_resource.end = __pa_symbol(_etext)-1;
27159- data_resource.start = __pa_symbol(_etext);
27160+ code_resource.start = __pa_symbol(ktla_ktva(_text));
27161+ code_resource.end = __pa_symbol(ktla_ktva(_etext))-1;
27162+ data_resource.start = __pa_symbol(_sdata);
27163 data_resource.end = __pa_symbol(_edata)-1;
27164 bss_resource.start = __pa_symbol(__bss_start);
27165 bss_resource.end = __pa_symbol(__bss_stop)-1;
27166diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
27167index e4fcb87..9c06c55 100644
27168--- a/arch/x86/kernel/setup_percpu.c
27169+++ b/arch/x86/kernel/setup_percpu.c
27170@@ -21,19 +21,17 @@
27171 #include <asm/cpu.h>
27172 #include <asm/stackprotector.h>
27173
27174-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
27175+#ifdef CONFIG_SMP
27176+DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
27177 EXPORT_PER_CPU_SYMBOL(cpu_number);
27178+#endif
27179
27180-#ifdef CONFIG_X86_64
27181 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
27182-#else
27183-#define BOOT_PERCPU_OFFSET 0
27184-#endif
27185
27186 DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
27187 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
27188
27189-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
27190+unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
27191 [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
27192 };
27193 EXPORT_SYMBOL(__per_cpu_offset);
27194@@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
27195 {
27196 #ifdef CONFIG_NEED_MULTIPLE_NODES
27197 pg_data_t *last = NULL;
27198- unsigned int cpu;
27199+ int cpu;
27200
27201 for_each_possible_cpu(cpu) {
27202 int node = early_cpu_to_node(cpu);
27203@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
27204 {
27205 #ifdef CONFIG_X86_32
27206 struct desc_struct gdt;
27207+ unsigned long base = per_cpu_offset(cpu);
27208
27209- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
27210- 0x2 | DESCTYPE_S, 0x8);
27211- gdt.s = 1;
27212+ pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
27213+ 0x83 | DESCTYPE_S, 0xC);
27214 write_gdt_entry(get_cpu_gdt_table(cpu),
27215 GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
27216 #endif
27217@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
27218 /* alrighty, percpu areas up and running */
27219 delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
27220 for_each_possible_cpu(cpu) {
27221+#ifdef CONFIG_CC_STACKPROTECTOR
27222+#ifdef CONFIG_X86_32
27223+ unsigned long canary = per_cpu(stack_canary.canary, cpu);
27224+#endif
27225+#endif
27226 per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
27227 per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
27228 per_cpu(cpu_number, cpu) = cpu;
27229@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
27230 */
27231 set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
27232 #endif
27233+#ifdef CONFIG_CC_STACKPROTECTOR
27234+#ifdef CONFIG_X86_32
27235+ if (!cpu)
27236+ per_cpu(stack_canary.canary, cpu) = canary;
27237+#endif
27238+#endif
27239 /*
27240 * Up to this point, the boot CPU has been using .init.data
27241 * area. Reload any changed state for the boot CPU.
27242diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
27243index e504246..ba10432 100644
27244--- a/arch/x86/kernel/signal.c
27245+++ b/arch/x86/kernel/signal.c
27246@@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp)
27247 * Align the stack pointer according to the i386 ABI,
27248 * i.e. so that on function entry ((sp + 4) & 15) == 0.
27249 */
27250- sp = ((sp + 4) & -16ul) - 4;
27251+ sp = ((sp - 12) & -16ul) - 4;
27252 #else /* !CONFIG_X86_32 */
27253 sp = round_down(sp, 16) - 8;
27254 #endif
27255@@ -298,10 +298,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
27256 }
27257
27258 if (current->mm->context.vdso)
27259- restorer = current->mm->context.vdso +
27260- selected_vdso32->sym___kernel_sigreturn;
27261+ restorer = (void __force_user *)(current->mm->context.vdso + selected_vdso32->sym___kernel_sigreturn);
27262 else
27263- restorer = &frame->retcode;
27264+ restorer = (void __user *)&frame->retcode;
27265 if (ksig->ka.sa.sa_flags & SA_RESTORER)
27266 restorer = ksig->ka.sa.sa_restorer;
27267
27268@@ -315,7 +314,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
27269 * reasons and because gdb uses it as a signature to notice
27270 * signal handler stack frames.
27271 */
27272- err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
27273+ err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
27274
27275 if (err)
27276 return -EFAULT;
27277@@ -362,8 +361,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
27278 save_altstack_ex(&frame->uc.uc_stack, regs->sp);
27279
27280 /* Set up to return from userspace. */
27281- restorer = current->mm->context.vdso +
27282- selected_vdso32->sym___kernel_rt_sigreturn;
27283+ if (current->mm->context.vdso)
27284+ restorer = (void __force_user *)(current->mm->context.vdso + selected_vdso32->sym___kernel_rt_sigreturn);
27285+ else
27286+ restorer = (void __user *)&frame->retcode;
27287 if (ksig->ka.sa.sa_flags & SA_RESTORER)
27288 restorer = ksig->ka.sa.sa_restorer;
27289 put_user_ex(restorer, &frame->pretcode);
27290@@ -375,7 +376,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
27291 * reasons and because gdb uses it as a signature to notice
27292 * signal handler stack frames.
27293 */
27294- put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
27295+ put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
27296 } put_user_catch(err);
27297
27298 err |= copy_siginfo_to_user(&frame->info, &ksig->info);
27299@@ -611,7 +612,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
27300 {
27301 int usig = signr_convert(ksig->sig);
27302 sigset_t *set = sigmask_to_save();
27303- compat_sigset_t *cset = (compat_sigset_t *) set;
27304+ sigset_t sigcopy;
27305+ compat_sigset_t *cset;
27306+
27307+ sigcopy = *set;
27308+
27309+ cset = (compat_sigset_t *) &sigcopy;
27310
27311 /* Set up the stack frame */
27312 if (is_ia32_frame()) {
27313@@ -622,7 +628,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
27314 } else if (is_x32_frame()) {
27315 return x32_setup_rt_frame(ksig, cset, regs);
27316 } else {
27317- return __setup_rt_frame(ksig->sig, ksig, set, regs);
27318+ return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
27319 }
27320 }
27321
27322diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
27323index be8e1bd..a3d93fa 100644
27324--- a/arch/x86/kernel/smp.c
27325+++ b/arch/x86/kernel/smp.c
27326@@ -341,7 +341,7 @@ static int __init nonmi_ipi_setup(char *str)
27327
27328 __setup("nonmi_ipi", nonmi_ipi_setup);
27329
27330-struct smp_ops smp_ops = {
27331+struct smp_ops smp_ops __read_only = {
27332 .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
27333 .smp_prepare_cpus = native_smp_prepare_cpus,
27334 .smp_cpus_done = native_smp_cpus_done,
27335diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
27336index febc6aa..37d8edf 100644
27337--- a/arch/x86/kernel/smpboot.c
27338+++ b/arch/x86/kernel/smpboot.c
27339@@ -229,14 +229,17 @@ static void notrace start_secondary(void *unused)
27340
27341 enable_start_cpu0 = 0;
27342
27343-#ifdef CONFIG_X86_32
27344+ /* otherwise gcc will move up smp_processor_id before the cpu_init */
27345+ barrier();
27346+
27347 /* switch away from the initial page table */
27348+#ifdef CONFIG_PAX_PER_CPU_PGD
27349+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
27350+#else
27351 load_cr3(swapper_pg_dir);
27352+#endif
27353 __flush_tlb_all();
27354-#endif
27355
27356- /* otherwise gcc will move up smp_processor_id before the cpu_init */
27357- barrier();
27358 /*
27359 * Check TSC synchronization with the BP:
27360 */
27361@@ -800,8 +803,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27362 alternatives_enable_smp();
27363
27364 idle->thread.sp = (unsigned long) (((struct pt_regs *)
27365- (THREAD_SIZE + task_stack_page(idle))) - 1);
27366+ (THREAD_SIZE - 16 + task_stack_page(idle))) - 1);
27367 per_cpu(current_task, cpu) = idle;
27368+ per_cpu(current_tinfo, cpu) = &idle->tinfo;
27369
27370 #ifdef CONFIG_X86_32
27371 /* Stack for startup_32 can be just as for start_secondary onwards */
27372@@ -810,10 +814,10 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27373 clear_tsk_thread_flag(idle, TIF_FORK);
27374 initial_gs = per_cpu_offset(cpu);
27375 #endif
27376- per_cpu(kernel_stack, cpu) =
27377- (unsigned long)task_stack_page(idle) -
27378- KERNEL_STACK_OFFSET + THREAD_SIZE;
27379+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
27380+ pax_open_kernel();
27381 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
27382+ pax_close_kernel();
27383 initial_code = (unsigned long)start_secondary;
27384 stack_start = idle->thread.sp;
27385
27386@@ -953,6 +957,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
27387 /* the FPU context is blank, nobody can own it */
27388 __cpu_disable_lazy_restore(cpu);
27389
27390+#ifdef CONFIG_PAX_PER_CPU_PGD
27391+ clone_pgd_range(get_cpu_pgd(cpu, kernel) + KERNEL_PGD_BOUNDARY,
27392+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27393+ KERNEL_PGD_PTRS);
27394+ clone_pgd_range(get_cpu_pgd(cpu, user) + KERNEL_PGD_BOUNDARY,
27395+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27396+ KERNEL_PGD_PTRS);
27397+#endif
27398+
27399 err = do_boot_cpu(apicid, cpu, tidle);
27400 if (err) {
27401 pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
27402diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
27403index 9b4d51d..5d28b58 100644
27404--- a/arch/x86/kernel/step.c
27405+++ b/arch/x86/kernel/step.c
27406@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27407 struct desc_struct *desc;
27408 unsigned long base;
27409
27410- seg &= ~7UL;
27411+ seg >>= 3;
27412
27413 mutex_lock(&child->mm->context.lock);
27414- if (unlikely((seg >> 3) >= child->mm->context.size))
27415+ if (unlikely(seg >= child->mm->context.size))
27416 addr = -1L; /* bogus selector, access would fault */
27417 else {
27418 desc = child->mm->context.ldt + seg;
27419@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27420 addr += base;
27421 }
27422 mutex_unlock(&child->mm->context.lock);
27423- }
27424+ } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
27425+ addr = ktla_ktva(addr);
27426
27427 return addr;
27428 }
27429@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
27430 unsigned char opcode[15];
27431 unsigned long addr = convert_ip_to_linear(child, regs);
27432
27433+ if (addr == -EINVAL)
27434+ return 0;
27435+
27436 copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
27437 for (i = 0; i < copied; i++) {
27438 switch (opcode[i]) {
27439diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
27440new file mode 100644
27441index 0000000..5877189
27442--- /dev/null
27443+++ b/arch/x86/kernel/sys_i386_32.c
27444@@ -0,0 +1,189 @@
27445+/*
27446+ * This file contains various random system calls that
27447+ * have a non-standard calling sequence on the Linux/i386
27448+ * platform.
27449+ */
27450+
27451+#include <linux/errno.h>
27452+#include <linux/sched.h>
27453+#include <linux/mm.h>
27454+#include <linux/fs.h>
27455+#include <linux/smp.h>
27456+#include <linux/sem.h>
27457+#include <linux/msg.h>
27458+#include <linux/shm.h>
27459+#include <linux/stat.h>
27460+#include <linux/syscalls.h>
27461+#include <linux/mman.h>
27462+#include <linux/file.h>
27463+#include <linux/utsname.h>
27464+#include <linux/ipc.h>
27465+#include <linux/elf.h>
27466+
27467+#include <linux/uaccess.h>
27468+#include <linux/unistd.h>
27469+
27470+#include <asm/syscalls.h>
27471+
27472+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
27473+{
27474+ unsigned long pax_task_size = TASK_SIZE;
27475+
27476+#ifdef CONFIG_PAX_SEGMEXEC
27477+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
27478+ pax_task_size = SEGMEXEC_TASK_SIZE;
27479+#endif
27480+
27481+ if (flags & MAP_FIXED)
27482+ if (len > pax_task_size || addr > pax_task_size - len)
27483+ return -EINVAL;
27484+
27485+ return 0;
27486+}
27487+
27488+/*
27489+ * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
27490+ */
27491+static unsigned long get_align_mask(void)
27492+{
27493+ if (va_align.flags < 0 || !(va_align.flags & ALIGN_VA_32))
27494+ return 0;
27495+
27496+ if (!(current->flags & PF_RANDOMIZE))
27497+ return 0;
27498+
27499+ return va_align.mask;
27500+}
27501+
27502+unsigned long
27503+arch_get_unmapped_area(struct file *filp, unsigned long addr,
27504+ unsigned long len, unsigned long pgoff, unsigned long flags)
27505+{
27506+ struct mm_struct *mm = current->mm;
27507+ struct vm_area_struct *vma;
27508+ unsigned long pax_task_size = TASK_SIZE;
27509+ struct vm_unmapped_area_info info;
27510+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27511+
27512+#ifdef CONFIG_PAX_SEGMEXEC
27513+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
27514+ pax_task_size = SEGMEXEC_TASK_SIZE;
27515+#endif
27516+
27517+ pax_task_size -= PAGE_SIZE;
27518+
27519+ if (len > pax_task_size)
27520+ return -ENOMEM;
27521+
27522+ if (flags & MAP_FIXED)
27523+ return addr;
27524+
27525+#ifdef CONFIG_PAX_RANDMMAP
27526+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27527+#endif
27528+
27529+ if (addr) {
27530+ addr = PAGE_ALIGN(addr);
27531+ if (pax_task_size - len >= addr) {
27532+ vma = find_vma(mm, addr);
27533+ if (check_heap_stack_gap(vma, addr, len, offset))
27534+ return addr;
27535+ }
27536+ }
27537+
27538+ info.flags = 0;
27539+ info.length = len;
27540+ info.align_mask = filp ? get_align_mask() : 0;
27541+ info.align_offset = pgoff << PAGE_SHIFT;
27542+ info.threadstack_offset = offset;
27543+
27544+#ifdef CONFIG_PAX_PAGEEXEC
27545+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) {
27546+ info.low_limit = 0x00110000UL;
27547+ info.high_limit = mm->start_code;
27548+
27549+#ifdef CONFIG_PAX_RANDMMAP
27550+ if (mm->pax_flags & MF_PAX_RANDMMAP)
27551+ info.low_limit += mm->delta_mmap & 0x03FFF000UL;
27552+#endif
27553+
27554+ if (info.low_limit < info.high_limit) {
27555+ addr = vm_unmapped_area(&info);
27556+ if (!IS_ERR_VALUE(addr))
27557+ return addr;
27558+ }
27559+ } else
27560+#endif
27561+
27562+ info.low_limit = mm->mmap_base;
27563+ info.high_limit = pax_task_size;
27564+
27565+ return vm_unmapped_area(&info);
27566+}
27567+
27568+unsigned long
27569+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27570+ const unsigned long len, const unsigned long pgoff,
27571+ const unsigned long flags)
27572+{
27573+ struct vm_area_struct *vma;
27574+ struct mm_struct *mm = current->mm;
27575+ unsigned long addr = addr0, pax_task_size = TASK_SIZE;
27576+ struct vm_unmapped_area_info info;
27577+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27578+
27579+#ifdef CONFIG_PAX_SEGMEXEC
27580+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
27581+ pax_task_size = SEGMEXEC_TASK_SIZE;
27582+#endif
27583+
27584+ pax_task_size -= PAGE_SIZE;
27585+
27586+ /* requested length too big for entire address space */
27587+ if (len > pax_task_size)
27588+ return -ENOMEM;
27589+
27590+ if (flags & MAP_FIXED)
27591+ return addr;
27592+
27593+#ifdef CONFIG_PAX_PAGEEXEC
27594+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
27595+ goto bottomup;
27596+#endif
27597+
27598+#ifdef CONFIG_PAX_RANDMMAP
27599+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27600+#endif
27601+
27602+ /* requesting a specific address */
27603+ if (addr) {
27604+ addr = PAGE_ALIGN(addr);
27605+ if (pax_task_size - len >= addr) {
27606+ vma = find_vma(mm, addr);
27607+ if (check_heap_stack_gap(vma, addr, len, offset))
27608+ return addr;
27609+ }
27610+ }
27611+
27612+ info.flags = VM_UNMAPPED_AREA_TOPDOWN;
27613+ info.length = len;
27614+ info.low_limit = PAGE_SIZE;
27615+ info.high_limit = mm->mmap_base;
27616+ info.align_mask = filp ? get_align_mask() : 0;
27617+ info.align_offset = pgoff << PAGE_SHIFT;
27618+ info.threadstack_offset = offset;
27619+
27620+ addr = vm_unmapped_area(&info);
27621+ if (!(addr & ~PAGE_MASK))
27622+ return addr;
27623+ VM_BUG_ON(addr != -ENOMEM);
27624+
27625+bottomup:
27626+ /*
27627+ * A failed mmap() very likely causes application failure,
27628+ * so fall back to the bottom-up function here. This scenario
27629+ * can happen with large stack limits and large mmap()
27630+ * allocations.
27631+ */
27632+ return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
27633+}
27634diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
27635index 30277e2..5664a29 100644
27636--- a/arch/x86/kernel/sys_x86_64.c
27637+++ b/arch/x86/kernel/sys_x86_64.c
27638@@ -81,8 +81,8 @@ out:
27639 return error;
27640 }
27641
27642-static void find_start_end(unsigned long flags, unsigned long *begin,
27643- unsigned long *end)
27644+static void find_start_end(struct mm_struct *mm, unsigned long flags,
27645+ unsigned long *begin, unsigned long *end)
27646 {
27647 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
27648 unsigned long new_begin;
27649@@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
27650 *begin = new_begin;
27651 }
27652 } else {
27653- *begin = current->mm->mmap_legacy_base;
27654+ *begin = mm->mmap_legacy_base;
27655 *end = TASK_SIZE;
27656 }
27657 }
27658@@ -114,20 +114,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27659 struct vm_area_struct *vma;
27660 struct vm_unmapped_area_info info;
27661 unsigned long begin, end;
27662+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27663
27664 if (flags & MAP_FIXED)
27665 return addr;
27666
27667- find_start_end(flags, &begin, &end);
27668+ find_start_end(mm, flags, &begin, &end);
27669
27670 if (len > end)
27671 return -ENOMEM;
27672
27673+#ifdef CONFIG_PAX_RANDMMAP
27674+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27675+#endif
27676+
27677 if (addr) {
27678 addr = PAGE_ALIGN(addr);
27679 vma = find_vma(mm, addr);
27680- if (end - len >= addr &&
27681- (!vma || addr + len <= vma->vm_start))
27682+ if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27683 return addr;
27684 }
27685
27686@@ -137,6 +141,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27687 info.high_limit = end;
27688 info.align_mask = filp ? get_align_mask() : 0;
27689 info.align_offset = pgoff << PAGE_SHIFT;
27690+ info.threadstack_offset = offset;
27691 return vm_unmapped_area(&info);
27692 }
27693
27694@@ -149,6 +154,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27695 struct mm_struct *mm = current->mm;
27696 unsigned long addr = addr0;
27697 struct vm_unmapped_area_info info;
27698+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27699
27700 /* requested length too big for entire address space */
27701 if (len > TASK_SIZE)
27702@@ -161,12 +167,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27703 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
27704 goto bottomup;
27705
27706+#ifdef CONFIG_PAX_RANDMMAP
27707+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27708+#endif
27709+
27710 /* requesting a specific address */
27711 if (addr) {
27712 addr = PAGE_ALIGN(addr);
27713 vma = find_vma(mm, addr);
27714- if (TASK_SIZE - len >= addr &&
27715- (!vma || addr + len <= vma->vm_start))
27716+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27717 return addr;
27718 }
27719
27720@@ -176,6 +185,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27721 info.high_limit = mm->mmap_base;
27722 info.align_mask = filp ? get_align_mask() : 0;
27723 info.align_offset = pgoff << PAGE_SHIFT;
27724+ info.threadstack_offset = offset;
27725 addr = vm_unmapped_area(&info);
27726 if (!(addr & ~PAGE_MASK))
27727 return addr;
27728diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
27729index 91a4496..42fc304 100644
27730--- a/arch/x86/kernel/tboot.c
27731+++ b/arch/x86/kernel/tboot.c
27732@@ -44,6 +44,7 @@
27733 #include <asm/setup.h>
27734 #include <asm/e820.h>
27735 #include <asm/io.h>
27736+#include <asm/tlbflush.h>
27737
27738 #include "../realmode/rm/wakeup.h"
27739
27740@@ -221,7 +222,7 @@ static int tboot_setup_sleep(void)
27741
27742 void tboot_shutdown(u32 shutdown_type)
27743 {
27744- void (*shutdown)(void);
27745+ void (* __noreturn shutdown)(void);
27746
27747 if (!tboot_enabled())
27748 return;
27749@@ -242,8 +243,9 @@ void tboot_shutdown(u32 shutdown_type)
27750 tboot->shutdown_type = shutdown_type;
27751
27752 switch_to_tboot_pt();
27753+ cr4_clear_bits(X86_CR4_PCIDE);
27754
27755- shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
27756+ shutdown = (void *)(unsigned long)tboot->shutdown_entry;
27757 shutdown();
27758
27759 /* should not reach here */
27760@@ -310,7 +312,7 @@ static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
27761 return -ENODEV;
27762 }
27763
27764-static atomic_t ap_wfs_count;
27765+static atomic_unchecked_t ap_wfs_count;
27766
27767 static int tboot_wait_for_aps(int num_aps)
27768 {
27769@@ -334,9 +336,9 @@ static int tboot_cpu_callback(struct notifier_block *nfb, unsigned long action,
27770 {
27771 switch (action) {
27772 case CPU_DYING:
27773- atomic_inc(&ap_wfs_count);
27774+ atomic_inc_unchecked(&ap_wfs_count);
27775 if (num_online_cpus() == 1)
27776- if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
27777+ if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
27778 return NOTIFY_BAD;
27779 break;
27780 }
27781@@ -422,7 +424,7 @@ static __init int tboot_late_init(void)
27782
27783 tboot_create_trampoline();
27784
27785- atomic_set(&ap_wfs_count, 0);
27786+ atomic_set_unchecked(&ap_wfs_count, 0);
27787 register_hotcpu_notifier(&tboot_cpu_notifier);
27788
27789 #ifdef CONFIG_DEBUG_FS
27790diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
27791index 25adc0e..1df4349 100644
27792--- a/arch/x86/kernel/time.c
27793+++ b/arch/x86/kernel/time.c
27794@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
27795 {
27796 unsigned long pc = instruction_pointer(regs);
27797
27798- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
27799+ if (!user_mode(regs) && in_lock_functions(pc)) {
27800 #ifdef CONFIG_FRAME_POINTER
27801- return *(unsigned long *)(regs->bp + sizeof(long));
27802+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
27803 #else
27804 unsigned long *sp =
27805 (unsigned long *)kernel_stack_pointer(regs);
27806@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
27807 * or above a saved flags. Eflags has bits 22-31 zero,
27808 * kernel addresses don't.
27809 */
27810+
27811+#ifdef CONFIG_PAX_KERNEXEC
27812+ return ktla_ktva(sp[0]);
27813+#else
27814 if (sp[0] >> 22)
27815 return sp[0];
27816 if (sp[1] >> 22)
27817 return sp[1];
27818 #endif
27819+
27820+#endif
27821 }
27822 return pc;
27823 }
27824diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
27825index 7fc5e84..c6e445a 100644
27826--- a/arch/x86/kernel/tls.c
27827+++ b/arch/x86/kernel/tls.c
27828@@ -139,6 +139,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
27829 if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
27830 return -EINVAL;
27831
27832+#ifdef CONFIG_PAX_SEGMEXEC
27833+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
27834+ return -EINVAL;
27835+#endif
27836+
27837 set_tls_desc(p, idx, &info, 1);
27838
27839 return 0;
27840@@ -256,7 +261,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
27841
27842 if (kbuf)
27843 info = kbuf;
27844- else if (__copy_from_user(infobuf, ubuf, count))
27845+ else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
27846 return -EFAULT;
27847 else
27848 info = infobuf;
27849diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
27850index 1c113db..287b42e 100644
27851--- a/arch/x86/kernel/tracepoint.c
27852+++ b/arch/x86/kernel/tracepoint.c
27853@@ -9,11 +9,11 @@
27854 #include <linux/atomic.h>
27855
27856 atomic_t trace_idt_ctr = ATOMIC_INIT(0);
27857-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27858+const struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27859 (unsigned long) trace_idt_table };
27860
27861 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27862-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
27863+gate_desc trace_idt_table[NR_VECTORS] __page_aligned_rodata;
27864
27865 static int trace_irq_vector_refcount;
27866 static DEFINE_MUTEX(irq_vector_mutex);
27867diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
27868index 4ff5d16..736e3e1 100644
27869--- a/arch/x86/kernel/traps.c
27870+++ b/arch/x86/kernel/traps.c
27871@@ -68,7 +68,7 @@
27872 #include <asm/proto.h>
27873
27874 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27875-gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
27876+gate_desc debug_idt_table[NR_VECTORS] __page_aligned_rodata;
27877 #else
27878 #include <asm/processor-flags.h>
27879 #include <asm/setup.h>
27880@@ -77,7 +77,7 @@ asmlinkage int system_call(void);
27881 #endif
27882
27883 /* Must be page-aligned because the real IDT is used in a fixmap. */
27884-gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
27885+gate_desc idt_table[NR_VECTORS] __page_aligned_rodata;
27886
27887 DECLARE_BITMAP(used_vectors, NR_VECTORS);
27888 EXPORT_SYMBOL_GPL(used_vectors);
27889@@ -112,7 +112,7 @@ enum ctx_state ist_enter(struct pt_regs *regs)
27890 {
27891 enum ctx_state prev_state;
27892
27893- if (user_mode_vm(regs)) {
27894+ if (user_mode(regs)) {
27895 /* Other than that, we're just an exception. */
27896 prev_state = exception_enter();
27897 } else {
27898@@ -146,7 +146,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27899 /* Must be before exception_exit. */
27900 preempt_count_sub(HARDIRQ_OFFSET);
27901
27902- if (user_mode_vm(regs))
27903+ if (user_mode(regs))
27904 return exception_exit(prev_state);
27905 else
27906 rcu_nmi_exit();
27907@@ -158,7 +158,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27908 *
27909 * IST exception handlers normally cannot schedule. As a special
27910 * exception, if the exception interrupted userspace code (i.e.
27911- * user_mode_vm(regs) would return true) and the exception was not
27912+ * user_mode(regs) would return true) and the exception was not
27913 * a double fault, it can be safe to schedule. ist_begin_non_atomic()
27914 * begins a non-atomic section within an ist_enter()/ist_exit() region.
27915 * Callers are responsible for enabling interrupts themselves inside
27916@@ -167,7 +167,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27917 */
27918 void ist_begin_non_atomic(struct pt_regs *regs)
27919 {
27920- BUG_ON(!user_mode_vm(regs));
27921+ BUG_ON(!user_mode(regs));
27922
27923 /*
27924 * Sanity check: we need to be on the normal thread stack. This
27925@@ -191,11 +191,11 @@ void ist_end_non_atomic(void)
27926 }
27927
27928 static nokprobe_inline int
27929-do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27930+do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
27931 struct pt_regs *regs, long error_code)
27932 {
27933 #ifdef CONFIG_X86_32
27934- if (regs->flags & X86_VM_MASK) {
27935+ if (v8086_mode(regs)) {
27936 /*
27937 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
27938 * On nmi (interrupt 2), do_trap should not be called.
27939@@ -208,12 +208,24 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27940 return -1;
27941 }
27942 #endif
27943- if (!user_mode(regs)) {
27944+ if (!user_mode_novm(regs)) {
27945 if (!fixup_exception(regs)) {
27946 tsk->thread.error_code = error_code;
27947 tsk->thread.trap_nr = trapnr;
27948+
27949+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
27950+ if (trapnr == X86_TRAP_SS && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
27951+ str = "PAX: suspicious stack segment fault";
27952+#endif
27953+
27954 die(str, regs, error_code);
27955 }
27956+
27957+#ifdef CONFIG_PAX_REFCOUNT
27958+ if (trapnr == X86_TRAP_OF)
27959+ pax_report_refcount_overflow(regs);
27960+#endif
27961+
27962 return 0;
27963 }
27964
27965@@ -252,7 +264,7 @@ static siginfo_t *fill_trap_info(struct pt_regs *regs, int signr, int trapnr,
27966 }
27967
27968 static void
27969-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
27970+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
27971 long error_code, siginfo_t *info)
27972 {
27973 struct task_struct *tsk = current;
27974@@ -276,7 +288,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
27975 if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
27976 printk_ratelimit()) {
27977 pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
27978- tsk->comm, tsk->pid, str,
27979+ tsk->comm, task_pid_nr(tsk), str,
27980 regs->ip, regs->sp, error_code);
27981 print_vma_addr(" in ", regs->ip);
27982 pr_cont("\n");
27983@@ -358,6 +370,11 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
27984 tsk->thread.error_code = error_code;
27985 tsk->thread.trap_nr = X86_TRAP_DF;
27986
27987+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
27988+ if ((unsigned long)tsk->stack - regs->sp <= PAGE_SIZE)
27989+ die("grsec: kernel stack overflow detected", regs, error_code);
27990+#endif
27991+
27992 #ifdef CONFIG_DOUBLEFAULT
27993 df_debug(regs, error_code);
27994 #endif
27995@@ -384,7 +401,7 @@ dotraplinkage void do_bounds(struct pt_regs *regs, long error_code)
27996 goto exit;
27997 conditional_sti(regs);
27998
27999- if (!user_mode_vm(regs))
28000+ if (!user_mode(regs))
28001 die("bounds", regs, error_code);
28002
28003 if (!cpu_feature_enabled(X86_FEATURE_MPX)) {
28004@@ -463,7 +480,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
28005 conditional_sti(regs);
28006
28007 #ifdef CONFIG_X86_32
28008- if (regs->flags & X86_VM_MASK) {
28009+ if (v8086_mode(regs)) {
28010 local_irq_enable();
28011 handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
28012 goto exit;
28013@@ -471,18 +488,42 @@ do_general_protection(struct pt_regs *regs, long error_code)
28014 #endif
28015
28016 tsk = current;
28017- if (!user_mode(regs)) {
28018+ if (!user_mode_novm(regs)) {
28019 if (fixup_exception(regs))
28020 goto exit;
28021
28022 tsk->thread.error_code = error_code;
28023 tsk->thread.trap_nr = X86_TRAP_GP;
28024 if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
28025- X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
28026+ X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
28027+
28028+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28029+ if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
28030+ die("PAX: suspicious general protection fault", regs, error_code);
28031+ else
28032+#endif
28033+
28034 die("general protection fault", regs, error_code);
28035+ }
28036 goto exit;
28037 }
28038
28039+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
28040+ if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
28041+ struct mm_struct *mm = tsk->mm;
28042+ unsigned long limit;
28043+
28044+ down_write(&mm->mmap_sem);
28045+ limit = mm->context.user_cs_limit;
28046+ if (limit < TASK_SIZE) {
28047+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
28048+ up_write(&mm->mmap_sem);
28049+ return;
28050+ }
28051+ up_write(&mm->mmap_sem);
28052+ }
28053+#endif
28054+
28055 tsk->thread.error_code = error_code;
28056 tsk->thread.trap_nr = X86_TRAP_GP;
28057
28058@@ -581,13 +622,16 @@ struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
28059 container_of(task_pt_regs(current),
28060 struct bad_iret_stack, regs);
28061
28062+ if ((current->thread.sp0 ^ (unsigned long)s) < THREAD_SIZE)
28063+ new_stack = s;
28064+
28065 /* Copy the IRET target to the new stack. */
28066 memmove(&new_stack->regs.ip, (void *)s->regs.sp, 5*8);
28067
28068 /* Copy the remainder of the stack from the current stack. */
28069 memmove(new_stack, s, offsetof(struct bad_iret_stack, regs.ip));
28070
28071- BUG_ON(!user_mode_vm(&new_stack->regs));
28072+ BUG_ON(!user_mode(&new_stack->regs));
28073 return new_stack;
28074 }
28075 NOKPROBE_SYMBOL(fixup_bad_iret);
28076@@ -637,7 +681,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28077 * then it's very likely the result of an icebp/int01 trap.
28078 * User wants a sigtrap for that.
28079 */
28080- if (!dr6 && user_mode_vm(regs))
28081+ if (!dr6 && user_mode(regs))
28082 user_icebp = 1;
28083
28084 /* Catch kmemcheck conditions first of all! */
28085@@ -673,7 +717,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28086 /* It's safe to allow irq's after DR6 has been saved */
28087 preempt_conditional_sti(regs);
28088
28089- if (regs->flags & X86_VM_MASK) {
28090+ if (v8086_mode(regs)) {
28091 handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
28092 X86_TRAP_DB);
28093 preempt_conditional_cli(regs);
28094@@ -688,7 +732,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28095 * We already checked v86 mode above, so we can check for kernel mode
28096 * by just checking the CPL of CS.
28097 */
28098- if ((dr6 & DR_STEP) && !user_mode(regs)) {
28099+ if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
28100 tsk->thread.debugreg6 &= ~DR_STEP;
28101 set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
28102 regs->flags &= ~X86_EFLAGS_TF;
28103@@ -721,7 +765,7 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
28104 return;
28105 conditional_sti(regs);
28106
28107- if (!user_mode_vm(regs))
28108+ if (!user_mode(regs))
28109 {
28110 if (!fixup_exception(regs)) {
28111 task->thread.error_code = error_code;
28112diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
28113index 5054497..139f8f8 100644
28114--- a/arch/x86/kernel/tsc.c
28115+++ b/arch/x86/kernel/tsc.c
28116@@ -150,7 +150,7 @@ static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
28117 */
28118 smp_wmb();
28119
28120- ACCESS_ONCE(c2n->head) = data;
28121+ ACCESS_ONCE_RW(c2n->head) = data;
28122 }
28123
28124 /*
28125diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
28126index 81f8adb0..fff670e 100644
28127--- a/arch/x86/kernel/uprobes.c
28128+++ b/arch/x86/kernel/uprobes.c
28129@@ -912,7 +912,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
28130 int ret = NOTIFY_DONE;
28131
28132 /* We are only interested in userspace traps */
28133- if (regs && !user_mode_vm(regs))
28134+ if (regs && !user_mode(regs))
28135 return NOTIFY_DONE;
28136
28137 switch (val) {
28138@@ -986,7 +986,7 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
28139
28140 if (nleft != rasize) {
28141 pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, "
28142- "%%ip=%#lx\n", current->pid, regs->sp, regs->ip);
28143+ "%%ip=%#lx\n", task_pid_nr(current), regs->sp, regs->ip);
28144
28145 force_sig_info(SIGSEGV, SEND_SIG_FORCED, current);
28146 }
28147diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
28148index b9242ba..50c5edd 100644
28149--- a/arch/x86/kernel/verify_cpu.S
28150+++ b/arch/x86/kernel/verify_cpu.S
28151@@ -20,6 +20,7 @@
28152 * arch/x86/boot/compressed/head_64.S: Boot cpu verification
28153 * arch/x86/kernel/trampoline_64.S: secondary processor verification
28154 * arch/x86/kernel/head_32.S: processor startup
28155+ * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
28156 *
28157 * verify_cpu, returns the status of longmode and SSE in register %eax.
28158 * 0: Success 1: Failure
28159diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
28160index e8edcf5..27f9344 100644
28161--- a/arch/x86/kernel/vm86_32.c
28162+++ b/arch/x86/kernel/vm86_32.c
28163@@ -44,6 +44,7 @@
28164 #include <linux/ptrace.h>
28165 #include <linux/audit.h>
28166 #include <linux/stddef.h>
28167+#include <linux/grsecurity.h>
28168
28169 #include <asm/uaccess.h>
28170 #include <asm/io.h>
28171@@ -150,7 +151,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
28172 do_exit(SIGSEGV);
28173 }
28174
28175- tss = &per_cpu(init_tss, get_cpu());
28176+ tss = init_tss + get_cpu();
28177 current->thread.sp0 = current->thread.saved_sp0;
28178 current->thread.sysenter_cs = __KERNEL_CS;
28179 load_sp0(tss, &current->thread);
28180@@ -214,6 +215,14 @@ SYSCALL_DEFINE1(vm86old, struct vm86_struct __user *, v86)
28181
28182 if (tsk->thread.saved_sp0)
28183 return -EPERM;
28184+
28185+#ifdef CONFIG_GRKERNSEC_VM86
28186+ if (!capable(CAP_SYS_RAWIO)) {
28187+ gr_handle_vm86();
28188+ return -EPERM;
28189+ }
28190+#endif
28191+
28192 tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
28193 offsetof(struct kernel_vm86_struct, vm86plus) -
28194 sizeof(info.regs));
28195@@ -238,6 +247,13 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
28196 int tmp;
28197 struct vm86plus_struct __user *v86;
28198
28199+#ifdef CONFIG_GRKERNSEC_VM86
28200+ if (!capable(CAP_SYS_RAWIO)) {
28201+ gr_handle_vm86();
28202+ return -EPERM;
28203+ }
28204+#endif
28205+
28206 tsk = current;
28207 switch (cmd) {
28208 case VM86_REQUEST_IRQ:
28209@@ -318,7 +334,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
28210 tsk->thread.saved_fs = info->regs32->fs;
28211 tsk->thread.saved_gs = get_user_gs(info->regs32);
28212
28213- tss = &per_cpu(init_tss, get_cpu());
28214+ tss = init_tss + get_cpu();
28215 tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
28216 if (cpu_has_sep)
28217 tsk->thread.sysenter_cs = 0;
28218@@ -525,7 +541,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
28219 goto cannot_handle;
28220 if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
28221 goto cannot_handle;
28222- intr_ptr = (unsigned long __user *) (i << 2);
28223+ intr_ptr = (__force unsigned long __user *) (i << 2);
28224 if (get_user(segoffs, intr_ptr))
28225 goto cannot_handle;
28226 if ((segoffs >> 16) == BIOSSEG)
28227diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
28228index 00bf300..129df8e 100644
28229--- a/arch/x86/kernel/vmlinux.lds.S
28230+++ b/arch/x86/kernel/vmlinux.lds.S
28231@@ -26,6 +26,13 @@
28232 #include <asm/page_types.h>
28233 #include <asm/cache.h>
28234 #include <asm/boot.h>
28235+#include <asm/segment.h>
28236+
28237+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28238+#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
28239+#else
28240+#define __KERNEL_TEXT_OFFSET 0
28241+#endif
28242
28243 #undef i386 /* in case the preprocessor is a 32bit one */
28244
28245@@ -69,30 +76,43 @@ jiffies_64 = jiffies;
28246
28247 PHDRS {
28248 text PT_LOAD FLAGS(5); /* R_E */
28249+#ifdef CONFIG_X86_32
28250+ module PT_LOAD FLAGS(5); /* R_E */
28251+#endif
28252+#ifdef CONFIG_XEN
28253+ rodata PT_LOAD FLAGS(5); /* R_E */
28254+#else
28255+ rodata PT_LOAD FLAGS(4); /* R__ */
28256+#endif
28257 data PT_LOAD FLAGS(6); /* RW_ */
28258-#ifdef CONFIG_X86_64
28259+ init.begin PT_LOAD FLAGS(6); /* RW_ */
28260 #ifdef CONFIG_SMP
28261 percpu PT_LOAD FLAGS(6); /* RW_ */
28262 #endif
28263+ text.init PT_LOAD FLAGS(5); /* R_E */
28264+ text.exit PT_LOAD FLAGS(5); /* R_E */
28265 init PT_LOAD FLAGS(7); /* RWE */
28266-#endif
28267 note PT_NOTE FLAGS(0); /* ___ */
28268 }
28269
28270 SECTIONS
28271 {
28272 #ifdef CONFIG_X86_32
28273- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
28274- phys_startup_32 = startup_32 - LOAD_OFFSET;
28275+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
28276 #else
28277- . = __START_KERNEL;
28278- phys_startup_64 = startup_64 - LOAD_OFFSET;
28279+ . = __START_KERNEL;
28280 #endif
28281
28282 /* Text and read-only data */
28283- .text : AT(ADDR(.text) - LOAD_OFFSET) {
28284- _text = .;
28285+ .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
28286 /* bootstrapping code */
28287+#ifdef CONFIG_X86_32
28288+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28289+#else
28290+ phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28291+#endif
28292+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28293+ _text = .;
28294 HEAD_TEXT
28295 . = ALIGN(8);
28296 _stext = .;
28297@@ -104,13 +124,47 @@ SECTIONS
28298 IRQENTRY_TEXT
28299 *(.fixup)
28300 *(.gnu.warning)
28301- /* End of text section */
28302- _etext = .;
28303 } :text = 0x9090
28304
28305- NOTES :text :note
28306+ . += __KERNEL_TEXT_OFFSET;
28307
28308- EXCEPTION_TABLE(16) :text = 0x9090
28309+#ifdef CONFIG_X86_32
28310+ . = ALIGN(PAGE_SIZE);
28311+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
28312+
28313+#ifdef CONFIG_PAX_KERNEXEC
28314+ MODULES_EXEC_VADDR = .;
28315+ BYTE(0)
28316+ . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
28317+ . = ALIGN(HPAGE_SIZE) - 1;
28318+ MODULES_EXEC_END = .;
28319+#endif
28320+
28321+ } :module
28322+#endif
28323+
28324+ .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
28325+ /* End of text section */
28326+ BYTE(0)
28327+ _etext = . - __KERNEL_TEXT_OFFSET;
28328+ }
28329+
28330+#ifdef CONFIG_X86_32
28331+ . = ALIGN(PAGE_SIZE);
28332+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
28333+ . = ALIGN(PAGE_SIZE);
28334+ *(.empty_zero_page)
28335+ *(.initial_pg_fixmap)
28336+ *(.initial_pg_pmd)
28337+ *(.initial_page_table)
28338+ *(.swapper_pg_dir)
28339+ } :rodata
28340+#endif
28341+
28342+ . = ALIGN(PAGE_SIZE);
28343+ NOTES :rodata :note
28344+
28345+ EXCEPTION_TABLE(16) :rodata
28346
28347 #if defined(CONFIG_DEBUG_RODATA)
28348 /* .text should occupy whole number of pages */
28349@@ -122,16 +176,20 @@ SECTIONS
28350
28351 /* Data */
28352 .data : AT(ADDR(.data) - LOAD_OFFSET) {
28353+
28354+#ifdef CONFIG_PAX_KERNEXEC
28355+ . = ALIGN(HPAGE_SIZE);
28356+#else
28357+ . = ALIGN(PAGE_SIZE);
28358+#endif
28359+
28360 /* Start of data section */
28361 _sdata = .;
28362
28363 /* init_task */
28364 INIT_TASK_DATA(THREAD_SIZE)
28365
28366-#ifdef CONFIG_X86_32
28367- /* 32 bit has nosave before _edata */
28368 NOSAVE_DATA
28369-#endif
28370
28371 PAGE_ALIGNED_DATA(PAGE_SIZE)
28372
28373@@ -174,12 +232,19 @@ SECTIONS
28374 . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
28375
28376 /* Init code and data - will be freed after init */
28377- . = ALIGN(PAGE_SIZE);
28378 .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
28379+ BYTE(0)
28380+
28381+#ifdef CONFIG_PAX_KERNEXEC
28382+ . = ALIGN(HPAGE_SIZE);
28383+#else
28384+ . = ALIGN(PAGE_SIZE);
28385+#endif
28386+
28387 __init_begin = .; /* paired with __init_end */
28388- }
28389+ } :init.begin
28390
28391-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
28392+#ifdef CONFIG_SMP
28393 /*
28394 * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the
28395 * output PHDR, so the next output section - .init.text - should
28396@@ -190,12 +255,27 @@ SECTIONS
28397 "per-CPU data too large - increase CONFIG_PHYSICAL_START")
28398 #endif
28399
28400- INIT_TEXT_SECTION(PAGE_SIZE)
28401-#ifdef CONFIG_X86_64
28402- :init
28403-#endif
28404+ . = ALIGN(PAGE_SIZE);
28405+ init_begin = .;
28406+ .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
28407+ VMLINUX_SYMBOL(_sinittext) = .;
28408+ INIT_TEXT
28409+ . = ALIGN(PAGE_SIZE);
28410+ } :text.init
28411
28412- INIT_DATA_SECTION(16)
28413+ /*
28414+ * .exit.text is discard at runtime, not link time, to deal with
28415+ * references from .altinstructions and .eh_frame
28416+ */
28417+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
28418+ EXIT_TEXT
28419+ VMLINUX_SYMBOL(_einittext) = .;
28420+ . = ALIGN(16);
28421+ } :text.exit
28422+ . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
28423+
28424+ . = ALIGN(PAGE_SIZE);
28425+ INIT_DATA_SECTION(16) :init
28426
28427 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
28428 __x86_cpu_dev_start = .;
28429@@ -266,19 +346,12 @@ SECTIONS
28430 }
28431
28432 . = ALIGN(8);
28433- /*
28434- * .exit.text is discard at runtime, not link time, to deal with
28435- * references from .altinstructions and .eh_frame
28436- */
28437- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
28438- EXIT_TEXT
28439- }
28440
28441 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
28442 EXIT_DATA
28443 }
28444
28445-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
28446+#ifndef CONFIG_SMP
28447 PERCPU_SECTION(INTERNODE_CACHE_BYTES)
28448 #endif
28449
28450@@ -297,16 +370,10 @@ SECTIONS
28451 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
28452 __smp_locks = .;
28453 *(.smp_locks)
28454- . = ALIGN(PAGE_SIZE);
28455 __smp_locks_end = .;
28456+ . = ALIGN(PAGE_SIZE);
28457 }
28458
28459-#ifdef CONFIG_X86_64
28460- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
28461- NOSAVE_DATA
28462- }
28463-#endif
28464-
28465 /* BSS */
28466 . = ALIGN(PAGE_SIZE);
28467 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
28468@@ -322,6 +389,7 @@ SECTIONS
28469 __brk_base = .;
28470 . += 64 * 1024; /* 64k alignment slop space */
28471 *(.brk_reservation) /* areas brk users have reserved */
28472+ . = ALIGN(HPAGE_SIZE);
28473 __brk_limit = .;
28474 }
28475
28476@@ -348,13 +416,12 @@ SECTIONS
28477 * for the boot processor.
28478 */
28479 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
28480-INIT_PER_CPU(gdt_page);
28481 INIT_PER_CPU(irq_stack_union);
28482
28483 /*
28484 * Build-time check on the image size:
28485 */
28486-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
28487+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
28488 "kernel image bigger than KERNEL_IMAGE_SIZE");
28489
28490 #ifdef CONFIG_SMP
28491diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
28492index 2dcc6ff..082dc7a 100644
28493--- a/arch/x86/kernel/vsyscall_64.c
28494+++ b/arch/x86/kernel/vsyscall_64.c
28495@@ -38,15 +38,13 @@
28496 #define CREATE_TRACE_POINTS
28497 #include "vsyscall_trace.h"
28498
28499-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
28500+static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
28501
28502 static int __init vsyscall_setup(char *str)
28503 {
28504 if (str) {
28505 if (!strcmp("emulate", str))
28506 vsyscall_mode = EMULATE;
28507- else if (!strcmp("native", str))
28508- vsyscall_mode = NATIVE;
28509 else if (!strcmp("none", str))
28510 vsyscall_mode = NONE;
28511 else
28512@@ -264,8 +262,7 @@ do_ret:
28513 return true;
28514
28515 sigsegv:
28516- force_sig(SIGSEGV, current);
28517- return true;
28518+ do_group_exit(SIGKILL);
28519 }
28520
28521 /*
28522@@ -283,8 +280,8 @@ static struct vm_operations_struct gate_vma_ops = {
28523 static struct vm_area_struct gate_vma = {
28524 .vm_start = VSYSCALL_ADDR,
28525 .vm_end = VSYSCALL_ADDR + PAGE_SIZE,
28526- .vm_page_prot = PAGE_READONLY_EXEC,
28527- .vm_flags = VM_READ | VM_EXEC,
28528+ .vm_page_prot = PAGE_READONLY,
28529+ .vm_flags = VM_READ,
28530 .vm_ops = &gate_vma_ops,
28531 };
28532
28533@@ -325,10 +322,7 @@ void __init map_vsyscall(void)
28534 unsigned long physaddr_vsyscall = __pa_symbol(&__vsyscall_page);
28535
28536 if (vsyscall_mode != NONE)
28537- __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
28538- vsyscall_mode == NATIVE
28539- ? PAGE_KERNEL_VSYSCALL
28540- : PAGE_KERNEL_VVAR);
28541+ __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
28542
28543 BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_PAGE) !=
28544 (unsigned long)VSYSCALL_ADDR);
28545diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
28546index 37d8fa4..66e319a 100644
28547--- a/arch/x86/kernel/x8664_ksyms_64.c
28548+++ b/arch/x86/kernel/x8664_ksyms_64.c
28549@@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
28550 EXPORT_SYMBOL(copy_user_generic_unrolled);
28551 EXPORT_SYMBOL(copy_user_enhanced_fast_string);
28552 EXPORT_SYMBOL(__copy_user_nocache);
28553-EXPORT_SYMBOL(_copy_from_user);
28554-EXPORT_SYMBOL(_copy_to_user);
28555
28556 EXPORT_SYMBOL(copy_page);
28557 EXPORT_SYMBOL(clear_page);
28558@@ -79,3 +77,7 @@ EXPORT_SYMBOL(___preempt_schedule);
28559 EXPORT_SYMBOL(___preempt_schedule_context);
28560 #endif
28561 #endif
28562+
28563+#ifdef CONFIG_PAX_PER_CPU_PGD
28564+EXPORT_SYMBOL(cpu_pgd);
28565+#endif
28566diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
28567index 234b072..b7ab191 100644
28568--- a/arch/x86/kernel/x86_init.c
28569+++ b/arch/x86/kernel/x86_init.c
28570@@ -93,7 +93,7 @@ struct x86_cpuinit_ops x86_cpuinit = {
28571 static void default_nmi_init(void) { };
28572 static int default_i8042_detect(void) { return 1; };
28573
28574-struct x86_platform_ops x86_platform = {
28575+struct x86_platform_ops x86_platform __read_only = {
28576 .calibrate_tsc = native_calibrate_tsc,
28577 .get_wallclock = mach_get_cmos_time,
28578 .set_wallclock = mach_set_rtc_mmss,
28579@@ -109,7 +109,7 @@ struct x86_platform_ops x86_platform = {
28580 EXPORT_SYMBOL_GPL(x86_platform);
28581
28582 #if defined(CONFIG_PCI_MSI)
28583-struct x86_msi_ops x86_msi = {
28584+struct x86_msi_ops x86_msi __read_only = {
28585 .setup_msi_irqs = native_setup_msi_irqs,
28586 .compose_msi_msg = native_compose_msi_msg,
28587 .teardown_msi_irq = native_teardown_msi_irq,
28588@@ -140,7 +140,7 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
28589 }
28590 #endif
28591
28592-struct x86_io_apic_ops x86_io_apic_ops = {
28593+struct x86_io_apic_ops x86_io_apic_ops __read_only = {
28594 .init = native_io_apic_init_mappings,
28595 .read = native_io_apic_read,
28596 .write = native_io_apic_write,
28597diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
28598index cdc6cf9..e04f495 100644
28599--- a/arch/x86/kernel/xsave.c
28600+++ b/arch/x86/kernel/xsave.c
28601@@ -168,18 +168,18 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28602
28603 /* Setup the bytes not touched by the [f]xsave and reserved for SW. */
28604 sw_bytes = ia32_frame ? &fx_sw_reserved_ia32 : &fx_sw_reserved;
28605- err = __copy_to_user(&x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28606+ err = __copy_to_user(x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28607
28608 if (!use_xsave())
28609 return err;
28610
28611- err |= __put_user(FP_XSTATE_MAGIC2, (__u32 *)(buf + xstate_size));
28612+ err |= __put_user(FP_XSTATE_MAGIC2, (__u32 __user *)(buf + xstate_size));
28613
28614 /*
28615 * Read the xstate_bv which we copied (directly from the cpu or
28616 * from the state in task struct) to the user buffers.
28617 */
28618- err |= __get_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28619+ err |= __get_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28620
28621 /*
28622 * For legacy compatible, we always set FP/SSE bits in the bit
28623@@ -194,7 +194,7 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28624 */
28625 xstate_bv |= XSTATE_FPSSE;
28626
28627- err |= __put_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28628+ err |= __put_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28629
28630 return err;
28631 }
28632@@ -203,6 +203,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
28633 {
28634 int err;
28635
28636+ buf = (struct xsave_struct __user *)____m(buf);
28637 if (use_xsave())
28638 err = xsave_user(buf);
28639 else if (use_fxsr())
28640@@ -313,6 +314,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
28641 */
28642 static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
28643 {
28644+ buf = (void __user *)____m(buf);
28645 if (use_xsave()) {
28646 if ((unsigned long)buf % 64 || fx_only) {
28647 u64 init_bv = pcntxt_mask & ~XSTATE_FPSSE;
28648diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
28649index 8a80737..bac4961 100644
28650--- a/arch/x86/kvm/cpuid.c
28651+++ b/arch/x86/kvm/cpuid.c
28652@@ -182,15 +182,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
28653 struct kvm_cpuid2 *cpuid,
28654 struct kvm_cpuid_entry2 __user *entries)
28655 {
28656- int r;
28657+ int r, i;
28658
28659 r = -E2BIG;
28660 if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
28661 goto out;
28662 r = -EFAULT;
28663- if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
28664- cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28665+ if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28666 goto out;
28667+ for (i = 0; i < cpuid->nent; ++i) {
28668+ struct kvm_cpuid_entry2 cpuid_entry;
28669+ if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
28670+ goto out;
28671+ vcpu->arch.cpuid_entries[i] = cpuid_entry;
28672+ }
28673 vcpu->arch.cpuid_nent = cpuid->nent;
28674 kvm_apic_set_version(vcpu);
28675 kvm_x86_ops->cpuid_update(vcpu);
28676@@ -203,15 +208,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
28677 struct kvm_cpuid2 *cpuid,
28678 struct kvm_cpuid_entry2 __user *entries)
28679 {
28680- int r;
28681+ int r, i;
28682
28683 r = -E2BIG;
28684 if (cpuid->nent < vcpu->arch.cpuid_nent)
28685 goto out;
28686 r = -EFAULT;
28687- if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
28688- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28689+ if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28690 goto out;
28691+ for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
28692+ struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
28693+ if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
28694+ goto out;
28695+ }
28696 return 0;
28697
28698 out:
28699diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
28700index 106c015..2db7161 100644
28701--- a/arch/x86/kvm/emulate.c
28702+++ b/arch/x86/kvm/emulate.c
28703@@ -3572,7 +3572,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
28704 int cr = ctxt->modrm_reg;
28705 u64 efer = 0;
28706
28707- static u64 cr_reserved_bits[] = {
28708+ static const u64 cr_reserved_bits[] = {
28709 0xffffffff00000000ULL,
28710 0, 0, 0, /* CR3 checked later */
28711 CR4_RESERVED_BITS,
28712diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
28713index 4ee827d..a14eff9 100644
28714--- a/arch/x86/kvm/lapic.c
28715+++ b/arch/x86/kvm/lapic.c
28716@@ -56,7 +56,7 @@
28717 #define APIC_BUS_CYCLE_NS 1
28718
28719 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
28720-#define apic_debug(fmt, arg...)
28721+#define apic_debug(fmt, arg...) do {} while (0)
28722
28723 #define APIC_LVT_NUM 6
28724 /* 14 is the version for Xeon and Pentium 8.4.8*/
28725diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
28726index fd49c86..77e1aa0 100644
28727--- a/arch/x86/kvm/paging_tmpl.h
28728+++ b/arch/x86/kvm/paging_tmpl.h
28729@@ -343,7 +343,7 @@ retry_walk:
28730 if (unlikely(kvm_is_error_hva(host_addr)))
28731 goto error;
28732
28733- ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
28734+ ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
28735 if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
28736 goto error;
28737 walker->ptep_user[walker->level - 1] = ptep_user;
28738diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
28739index cc618c8..3f72f76 100644
28740--- a/arch/x86/kvm/svm.c
28741+++ b/arch/x86/kvm/svm.c
28742@@ -3568,7 +3568,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
28743 int cpu = raw_smp_processor_id();
28744
28745 struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
28746+
28747+ pax_open_kernel();
28748 sd->tss_desc->type = 9; /* available 32/64-bit TSS */
28749+ pax_close_kernel();
28750+
28751 load_TR_desc();
28752 }
28753
28754@@ -3964,6 +3968,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
28755 #endif
28756 #endif
28757
28758+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
28759+ __set_fs(current_thread_info()->addr_limit);
28760+#endif
28761+
28762 reload_tss(vcpu);
28763
28764 local_irq_disable();
28765diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
28766index a60bd3a..748e856 100644
28767--- a/arch/x86/kvm/vmx.c
28768+++ b/arch/x86/kvm/vmx.c
28769@@ -1440,12 +1440,12 @@ static void vmcs_write64(unsigned long field, u64 value)
28770 #endif
28771 }
28772
28773-static void vmcs_clear_bits(unsigned long field, u32 mask)
28774+static void vmcs_clear_bits(unsigned long field, unsigned long mask)
28775 {
28776 vmcs_writel(field, vmcs_readl(field) & ~mask);
28777 }
28778
28779-static void vmcs_set_bits(unsigned long field, u32 mask)
28780+static void vmcs_set_bits(unsigned long field, unsigned long mask)
28781 {
28782 vmcs_writel(field, vmcs_readl(field) | mask);
28783 }
28784@@ -1705,7 +1705,11 @@ static void reload_tss(void)
28785 struct desc_struct *descs;
28786
28787 descs = (void *)gdt->address;
28788+
28789+ pax_open_kernel();
28790 descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
28791+ pax_close_kernel();
28792+
28793 load_TR_desc();
28794 }
28795
28796@@ -1941,6 +1945,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
28797 vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
28798 vmcs_writel(HOST_GDTR_BASE, gdt->address); /* 22.2.4 */
28799
28800+#ifdef CONFIG_PAX_PER_CPU_PGD
28801+ vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28802+#endif
28803+
28804 rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
28805 vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
28806 vmx->loaded_vmcs->cpu = cpu;
28807@@ -2233,7 +2241,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
28808 * reads and returns guest's timestamp counter "register"
28809 * guest_tsc = host_tsc + tsc_offset -- 21.3
28810 */
28811-static u64 guest_read_tsc(void)
28812+static u64 __intentional_overflow(-1) guest_read_tsc(void)
28813 {
28814 u64 host_tsc, tsc_offset;
28815
28816@@ -4466,7 +4474,10 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28817 unsigned long cr4;
28818
28819 vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS); /* 22.2.3 */
28820+
28821+#ifndef CONFIG_PAX_PER_CPU_PGD
28822 vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28823+#endif
28824
28825 /* Save the most likely value for this task's CR4 in the VMCS. */
28826 cr4 = cr4_read_shadow();
28827@@ -4493,7 +4504,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28828 vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
28829 vmx->host_idt_base = dt.address;
28830
28831- vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
28832+ vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
28833
28834 rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
28835 vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
28836@@ -6104,11 +6115,17 @@ static __init int hardware_setup(void)
28837 * page upon invalidation. No need to do anything if not
28838 * using the APIC_ACCESS_ADDR VMCS field.
28839 */
28840- if (!flexpriority_enabled)
28841- kvm_x86_ops->set_apic_access_page_addr = NULL;
28842+ if (!flexpriority_enabled) {
28843+ pax_open_kernel();
28844+ *(void **)&kvm_x86_ops->set_apic_access_page_addr = NULL;
28845+ pax_close_kernel();
28846+ }
28847
28848- if (!cpu_has_vmx_tpr_shadow())
28849- kvm_x86_ops->update_cr8_intercept = NULL;
28850+ if (!cpu_has_vmx_tpr_shadow()) {
28851+ pax_open_kernel();
28852+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28853+ pax_close_kernel();
28854+ }
28855
28856 if (enable_ept && !cpu_has_vmx_ept_2m_page())
28857 kvm_disable_largepages();
28858@@ -6119,14 +6136,16 @@ static __init int hardware_setup(void)
28859 if (!cpu_has_vmx_apicv())
28860 enable_apicv = 0;
28861
28862+ pax_open_kernel();
28863 if (enable_apicv)
28864- kvm_x86_ops->update_cr8_intercept = NULL;
28865+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28866 else {
28867- kvm_x86_ops->hwapic_irr_update = NULL;
28868- kvm_x86_ops->hwapic_isr_update = NULL;
28869- kvm_x86_ops->deliver_posted_interrupt = NULL;
28870- kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28871+ *(void **)&kvm_x86_ops->hwapic_irr_update = NULL;
28872+ *(void **)&kvm_x86_ops->hwapic_isr_update = NULL;
28873+ *(void **)&kvm_x86_ops->deliver_posted_interrupt = NULL;
28874+ *(void **)&kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28875 }
28876+ pax_close_kernel();
28877
28878 vmx_disable_intercept_for_msr(MSR_FS_BASE, false);
28879 vmx_disable_intercept_for_msr(MSR_GS_BASE, false);
28880@@ -6179,10 +6198,12 @@ static __init int hardware_setup(void)
28881 enable_pml = 0;
28882
28883 if (!enable_pml) {
28884- kvm_x86_ops->slot_enable_log_dirty = NULL;
28885- kvm_x86_ops->slot_disable_log_dirty = NULL;
28886- kvm_x86_ops->flush_log_dirty = NULL;
28887- kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
28888+ pax_open_kernel();
28889+ *(void **)&kvm_x86_ops->slot_enable_log_dirty = NULL;
28890+ *(void **)&kvm_x86_ops->slot_disable_log_dirty = NULL;
28891+ *(void **)&kvm_x86_ops->flush_log_dirty = NULL;
28892+ *(void **)&kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
28893+ pax_close_kernel();
28894 }
28895
28896 return alloc_kvm_area();
28897@@ -8227,6 +8248,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28898 "jmp 2f \n\t"
28899 "1: " __ex(ASM_VMX_VMRESUME) "\n\t"
28900 "2: "
28901+
28902+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28903+ "ljmp %[cs],$3f\n\t"
28904+ "3: "
28905+#endif
28906+
28907 /* Save guest registers, load host registers, keep flags */
28908 "mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
28909 "pop %0 \n\t"
28910@@ -8279,6 +8306,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28911 #endif
28912 [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
28913 [wordsize]"i"(sizeof(ulong))
28914+
28915+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28916+ ,[cs]"i"(__KERNEL_CS)
28917+#endif
28918+
28919 : "cc", "memory"
28920 #ifdef CONFIG_X86_64
28921 , "rax", "rbx", "rdi", "rsi"
28922@@ -8292,7 +8324,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28923 if (debugctlmsr)
28924 update_debugctlmsr(debugctlmsr);
28925
28926-#ifndef CONFIG_X86_64
28927+#ifdef CONFIG_X86_32
28928 /*
28929 * The sysexit path does not restore ds/es, so we must set them to
28930 * a reasonable value ourselves.
28931@@ -8301,8 +8333,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28932 * may be executed in interrupt context, which saves and restore segments
28933 * around it, nullifying its effect.
28934 */
28935- loadsegment(ds, __USER_DS);
28936- loadsegment(es, __USER_DS);
28937+ loadsegment(ds, __KERNEL_DS);
28938+ loadsegment(es, __KERNEL_DS);
28939+ loadsegment(ss, __KERNEL_DS);
28940+
28941+#ifdef CONFIG_PAX_KERNEXEC
28942+ loadsegment(fs, __KERNEL_PERCPU);
28943+#endif
28944+
28945+#ifdef CONFIG_PAX_MEMORY_UDEREF
28946+ __set_fs(current_thread_info()->addr_limit);
28947+#endif
28948+
28949 #endif
28950
28951 vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
28952diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
28953index e222ba5..6f0f2de 100644
28954--- a/arch/x86/kvm/x86.c
28955+++ b/arch/x86/kvm/x86.c
28956@@ -1897,8 +1897,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
28957 {
28958 struct kvm *kvm = vcpu->kvm;
28959 int lm = is_long_mode(vcpu);
28960- u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
28961- : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
28962+ u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
28963+ : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
28964 u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
28965 : kvm->arch.xen_hvm_config.blob_size_32;
28966 u32 page_num = data & ~PAGE_MASK;
28967@@ -2835,6 +2835,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
28968 if (n < msr_list.nmsrs)
28969 goto out;
28970 r = -EFAULT;
28971+ if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
28972+ goto out;
28973 if (copy_to_user(user_msr_list->indices, &msrs_to_save,
28974 num_msrs_to_save * sizeof(u32)))
28975 goto out;
28976@@ -5739,7 +5741,7 @@ static struct notifier_block pvclock_gtod_notifier = {
28977 };
28978 #endif
28979
28980-int kvm_arch_init(void *opaque)
28981+int kvm_arch_init(const void *opaque)
28982 {
28983 int r;
28984 struct kvm_x86_ops *ops = opaque;
28985diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
28986index ac4453d..1f43bf3 100644
28987--- a/arch/x86/lguest/boot.c
28988+++ b/arch/x86/lguest/boot.c
28989@@ -1340,9 +1340,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
28990 * Rebooting also tells the Host we're finished, but the RESTART flag tells the
28991 * Launcher to reboot us.
28992 */
28993-static void lguest_restart(char *reason)
28994+static __noreturn void lguest_restart(char *reason)
28995 {
28996 hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
28997+ BUG();
28998 }
28999
29000 /*G:050
29001diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
29002index 00933d5..3a64af9 100644
29003--- a/arch/x86/lib/atomic64_386_32.S
29004+++ b/arch/x86/lib/atomic64_386_32.S
29005@@ -48,6 +48,10 @@ BEGIN(read)
29006 movl (v), %eax
29007 movl 4(v), %edx
29008 RET_ENDP
29009+BEGIN(read_unchecked)
29010+ movl (v), %eax
29011+ movl 4(v), %edx
29012+RET_ENDP
29013 #undef v
29014
29015 #define v %esi
29016@@ -55,6 +59,10 @@ BEGIN(set)
29017 movl %ebx, (v)
29018 movl %ecx, 4(v)
29019 RET_ENDP
29020+BEGIN(set_unchecked)
29021+ movl %ebx, (v)
29022+ movl %ecx, 4(v)
29023+RET_ENDP
29024 #undef v
29025
29026 #define v %esi
29027@@ -70,6 +78,20 @@ RET_ENDP
29028 BEGIN(add)
29029 addl %eax, (v)
29030 adcl %edx, 4(v)
29031+
29032+#ifdef CONFIG_PAX_REFCOUNT
29033+ jno 0f
29034+ subl %eax, (v)
29035+ sbbl %edx, 4(v)
29036+ int $4
29037+0:
29038+ _ASM_EXTABLE(0b, 0b)
29039+#endif
29040+
29041+RET_ENDP
29042+BEGIN(add_unchecked)
29043+ addl %eax, (v)
29044+ adcl %edx, 4(v)
29045 RET_ENDP
29046 #undef v
29047
29048@@ -77,6 +99,24 @@ RET_ENDP
29049 BEGIN(add_return)
29050 addl (v), %eax
29051 adcl 4(v), %edx
29052+
29053+#ifdef CONFIG_PAX_REFCOUNT
29054+ into
29055+1234:
29056+ _ASM_EXTABLE(1234b, 2f)
29057+#endif
29058+
29059+ movl %eax, (v)
29060+ movl %edx, 4(v)
29061+
29062+#ifdef CONFIG_PAX_REFCOUNT
29063+2:
29064+#endif
29065+
29066+RET_ENDP
29067+BEGIN(add_return_unchecked)
29068+ addl (v), %eax
29069+ adcl 4(v), %edx
29070 movl %eax, (v)
29071 movl %edx, 4(v)
29072 RET_ENDP
29073@@ -86,6 +126,20 @@ RET_ENDP
29074 BEGIN(sub)
29075 subl %eax, (v)
29076 sbbl %edx, 4(v)
29077+
29078+#ifdef CONFIG_PAX_REFCOUNT
29079+ jno 0f
29080+ addl %eax, (v)
29081+ adcl %edx, 4(v)
29082+ int $4
29083+0:
29084+ _ASM_EXTABLE(0b, 0b)
29085+#endif
29086+
29087+RET_ENDP
29088+BEGIN(sub_unchecked)
29089+ subl %eax, (v)
29090+ sbbl %edx, 4(v)
29091 RET_ENDP
29092 #undef v
29093
29094@@ -96,6 +150,27 @@ BEGIN(sub_return)
29095 sbbl $0, %edx
29096 addl (v), %eax
29097 adcl 4(v), %edx
29098+
29099+#ifdef CONFIG_PAX_REFCOUNT
29100+ into
29101+1234:
29102+ _ASM_EXTABLE(1234b, 2f)
29103+#endif
29104+
29105+ movl %eax, (v)
29106+ movl %edx, 4(v)
29107+
29108+#ifdef CONFIG_PAX_REFCOUNT
29109+2:
29110+#endif
29111+
29112+RET_ENDP
29113+BEGIN(sub_return_unchecked)
29114+ negl %edx
29115+ negl %eax
29116+ sbbl $0, %edx
29117+ addl (v), %eax
29118+ adcl 4(v), %edx
29119 movl %eax, (v)
29120 movl %edx, 4(v)
29121 RET_ENDP
29122@@ -105,6 +180,20 @@ RET_ENDP
29123 BEGIN(inc)
29124 addl $1, (v)
29125 adcl $0, 4(v)
29126+
29127+#ifdef CONFIG_PAX_REFCOUNT
29128+ jno 0f
29129+ subl $1, (v)
29130+ sbbl $0, 4(v)
29131+ int $4
29132+0:
29133+ _ASM_EXTABLE(0b, 0b)
29134+#endif
29135+
29136+RET_ENDP
29137+BEGIN(inc_unchecked)
29138+ addl $1, (v)
29139+ adcl $0, 4(v)
29140 RET_ENDP
29141 #undef v
29142
29143@@ -114,6 +203,26 @@ BEGIN(inc_return)
29144 movl 4(v), %edx
29145 addl $1, %eax
29146 adcl $0, %edx
29147+
29148+#ifdef CONFIG_PAX_REFCOUNT
29149+ into
29150+1234:
29151+ _ASM_EXTABLE(1234b, 2f)
29152+#endif
29153+
29154+ movl %eax, (v)
29155+ movl %edx, 4(v)
29156+
29157+#ifdef CONFIG_PAX_REFCOUNT
29158+2:
29159+#endif
29160+
29161+RET_ENDP
29162+BEGIN(inc_return_unchecked)
29163+ movl (v), %eax
29164+ movl 4(v), %edx
29165+ addl $1, %eax
29166+ adcl $0, %edx
29167 movl %eax, (v)
29168 movl %edx, 4(v)
29169 RET_ENDP
29170@@ -123,6 +232,20 @@ RET_ENDP
29171 BEGIN(dec)
29172 subl $1, (v)
29173 sbbl $0, 4(v)
29174+
29175+#ifdef CONFIG_PAX_REFCOUNT
29176+ jno 0f
29177+ addl $1, (v)
29178+ adcl $0, 4(v)
29179+ int $4
29180+0:
29181+ _ASM_EXTABLE(0b, 0b)
29182+#endif
29183+
29184+RET_ENDP
29185+BEGIN(dec_unchecked)
29186+ subl $1, (v)
29187+ sbbl $0, 4(v)
29188 RET_ENDP
29189 #undef v
29190
29191@@ -132,6 +255,26 @@ BEGIN(dec_return)
29192 movl 4(v), %edx
29193 subl $1, %eax
29194 sbbl $0, %edx
29195+
29196+#ifdef CONFIG_PAX_REFCOUNT
29197+ into
29198+1234:
29199+ _ASM_EXTABLE(1234b, 2f)
29200+#endif
29201+
29202+ movl %eax, (v)
29203+ movl %edx, 4(v)
29204+
29205+#ifdef CONFIG_PAX_REFCOUNT
29206+2:
29207+#endif
29208+
29209+RET_ENDP
29210+BEGIN(dec_return_unchecked)
29211+ movl (v), %eax
29212+ movl 4(v), %edx
29213+ subl $1, %eax
29214+ sbbl $0, %edx
29215 movl %eax, (v)
29216 movl %edx, 4(v)
29217 RET_ENDP
29218@@ -143,6 +286,13 @@ BEGIN(add_unless)
29219 adcl %edx, %edi
29220 addl (v), %eax
29221 adcl 4(v), %edx
29222+
29223+#ifdef CONFIG_PAX_REFCOUNT
29224+ into
29225+1234:
29226+ _ASM_EXTABLE(1234b, 2f)
29227+#endif
29228+
29229 cmpl %eax, %ecx
29230 je 3f
29231 1:
29232@@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
29233 1:
29234 addl $1, %eax
29235 adcl $0, %edx
29236+
29237+#ifdef CONFIG_PAX_REFCOUNT
29238+ into
29239+1234:
29240+ _ASM_EXTABLE(1234b, 2f)
29241+#endif
29242+
29243 movl %eax, (v)
29244 movl %edx, 4(v)
29245 movl $1, %eax
29246@@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
29247 movl 4(v), %edx
29248 subl $1, %eax
29249 sbbl $0, %edx
29250+
29251+#ifdef CONFIG_PAX_REFCOUNT
29252+ into
29253+1234:
29254+ _ASM_EXTABLE(1234b, 1f)
29255+#endif
29256+
29257 js 1f
29258 movl %eax, (v)
29259 movl %edx, 4(v)
29260diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
29261index f5cc9eb..51fa319 100644
29262--- a/arch/x86/lib/atomic64_cx8_32.S
29263+++ b/arch/x86/lib/atomic64_cx8_32.S
29264@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
29265 CFI_STARTPROC
29266
29267 read64 %ecx
29268+ pax_force_retaddr
29269 ret
29270 CFI_ENDPROC
29271 ENDPROC(atomic64_read_cx8)
29272
29273+ENTRY(atomic64_read_unchecked_cx8)
29274+ CFI_STARTPROC
29275+
29276+ read64 %ecx
29277+ pax_force_retaddr
29278+ ret
29279+ CFI_ENDPROC
29280+ENDPROC(atomic64_read_unchecked_cx8)
29281+
29282 ENTRY(atomic64_set_cx8)
29283 CFI_STARTPROC
29284
29285@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
29286 cmpxchg8b (%esi)
29287 jne 1b
29288
29289+ pax_force_retaddr
29290 ret
29291 CFI_ENDPROC
29292 ENDPROC(atomic64_set_cx8)
29293
29294+ENTRY(atomic64_set_unchecked_cx8)
29295+ CFI_STARTPROC
29296+
29297+1:
29298+/* we don't need LOCK_PREFIX since aligned 64-bit writes
29299+ * are atomic on 586 and newer */
29300+ cmpxchg8b (%esi)
29301+ jne 1b
29302+
29303+ pax_force_retaddr
29304+ ret
29305+ CFI_ENDPROC
29306+ENDPROC(atomic64_set_unchecked_cx8)
29307+
29308 ENTRY(atomic64_xchg_cx8)
29309 CFI_STARTPROC
29310
29311@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
29312 cmpxchg8b (%esi)
29313 jne 1b
29314
29315+ pax_force_retaddr
29316 ret
29317 CFI_ENDPROC
29318 ENDPROC(atomic64_xchg_cx8)
29319
29320-.macro addsub_return func ins insc
29321-ENTRY(atomic64_\func\()_return_cx8)
29322+.macro addsub_return func ins insc unchecked=""
29323+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
29324 CFI_STARTPROC
29325 SAVE ebp
29326 SAVE ebx
29327@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
29328 movl %edx, %ecx
29329 \ins\()l %esi, %ebx
29330 \insc\()l %edi, %ecx
29331+
29332+.ifb \unchecked
29333+#ifdef CONFIG_PAX_REFCOUNT
29334+ into
29335+2:
29336+ _ASM_EXTABLE(2b, 3f)
29337+#endif
29338+.endif
29339+
29340 LOCK_PREFIX
29341 cmpxchg8b (%ebp)
29342 jne 1b
29343-
29344-10:
29345 movl %ebx, %eax
29346 movl %ecx, %edx
29347+
29348+.ifb \unchecked
29349+#ifdef CONFIG_PAX_REFCOUNT
29350+3:
29351+#endif
29352+.endif
29353+
29354 RESTORE edi
29355 RESTORE esi
29356 RESTORE ebx
29357 RESTORE ebp
29358+ pax_force_retaddr
29359 ret
29360 CFI_ENDPROC
29361-ENDPROC(atomic64_\func\()_return_cx8)
29362+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
29363 .endm
29364
29365 addsub_return add add adc
29366 addsub_return sub sub sbb
29367+addsub_return add add adc _unchecked
29368+addsub_return sub sub sbb _unchecked
29369
29370-.macro incdec_return func ins insc
29371-ENTRY(atomic64_\func\()_return_cx8)
29372+.macro incdec_return func ins insc unchecked=""
29373+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
29374 CFI_STARTPROC
29375 SAVE ebx
29376
29377@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
29378 movl %edx, %ecx
29379 \ins\()l $1, %ebx
29380 \insc\()l $0, %ecx
29381+
29382+.ifb \unchecked
29383+#ifdef CONFIG_PAX_REFCOUNT
29384+ into
29385+2:
29386+ _ASM_EXTABLE(2b, 3f)
29387+#endif
29388+.endif
29389+
29390 LOCK_PREFIX
29391 cmpxchg8b (%esi)
29392 jne 1b
29393
29394-10:
29395 movl %ebx, %eax
29396 movl %ecx, %edx
29397+
29398+.ifb \unchecked
29399+#ifdef CONFIG_PAX_REFCOUNT
29400+3:
29401+#endif
29402+.endif
29403+
29404 RESTORE ebx
29405+ pax_force_retaddr
29406 ret
29407 CFI_ENDPROC
29408-ENDPROC(atomic64_\func\()_return_cx8)
29409+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
29410 .endm
29411
29412 incdec_return inc add adc
29413 incdec_return dec sub sbb
29414+incdec_return inc add adc _unchecked
29415+incdec_return dec sub sbb _unchecked
29416
29417 ENTRY(atomic64_dec_if_positive_cx8)
29418 CFI_STARTPROC
29419@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
29420 movl %edx, %ecx
29421 subl $1, %ebx
29422 sbb $0, %ecx
29423+
29424+#ifdef CONFIG_PAX_REFCOUNT
29425+ into
29426+1234:
29427+ _ASM_EXTABLE(1234b, 2f)
29428+#endif
29429+
29430 js 2f
29431 LOCK_PREFIX
29432 cmpxchg8b (%esi)
29433@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
29434 movl %ebx, %eax
29435 movl %ecx, %edx
29436 RESTORE ebx
29437+ pax_force_retaddr
29438 ret
29439 CFI_ENDPROC
29440 ENDPROC(atomic64_dec_if_positive_cx8)
29441@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
29442 movl %edx, %ecx
29443 addl %ebp, %ebx
29444 adcl %edi, %ecx
29445+
29446+#ifdef CONFIG_PAX_REFCOUNT
29447+ into
29448+1234:
29449+ _ASM_EXTABLE(1234b, 3f)
29450+#endif
29451+
29452 LOCK_PREFIX
29453 cmpxchg8b (%esi)
29454 jne 1b
29455@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
29456 CFI_ADJUST_CFA_OFFSET -8
29457 RESTORE ebx
29458 RESTORE ebp
29459+ pax_force_retaddr
29460 ret
29461 4:
29462 cmpl %edx, 4(%esp)
29463@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
29464 xorl %ecx, %ecx
29465 addl $1, %ebx
29466 adcl %edx, %ecx
29467+
29468+#ifdef CONFIG_PAX_REFCOUNT
29469+ into
29470+1234:
29471+ _ASM_EXTABLE(1234b, 3f)
29472+#endif
29473+
29474 LOCK_PREFIX
29475 cmpxchg8b (%esi)
29476 jne 1b
29477@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
29478 movl $1, %eax
29479 3:
29480 RESTORE ebx
29481+ pax_force_retaddr
29482 ret
29483 CFI_ENDPROC
29484 ENDPROC(atomic64_inc_not_zero_cx8)
29485diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
29486index e78b8eee..7e173a8 100644
29487--- a/arch/x86/lib/checksum_32.S
29488+++ b/arch/x86/lib/checksum_32.S
29489@@ -29,7 +29,8 @@
29490 #include <asm/dwarf2.h>
29491 #include <asm/errno.h>
29492 #include <asm/asm.h>
29493-
29494+#include <asm/segment.h>
29495+
29496 /*
29497 * computes a partial checksum, e.g. for TCP/UDP fragments
29498 */
29499@@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
29500
29501 #define ARGBASE 16
29502 #define FP 12
29503-
29504-ENTRY(csum_partial_copy_generic)
29505+
29506+ENTRY(csum_partial_copy_generic_to_user)
29507 CFI_STARTPROC
29508+
29509+#ifdef CONFIG_PAX_MEMORY_UDEREF
29510+ pushl_cfi %gs
29511+ popl_cfi %es
29512+ jmp csum_partial_copy_generic
29513+#endif
29514+
29515+ENTRY(csum_partial_copy_generic_from_user)
29516+
29517+#ifdef CONFIG_PAX_MEMORY_UDEREF
29518+ pushl_cfi %gs
29519+ popl_cfi %ds
29520+#endif
29521+
29522+ENTRY(csum_partial_copy_generic)
29523 subl $4,%esp
29524 CFI_ADJUST_CFA_OFFSET 4
29525 pushl_cfi %edi
29526@@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
29527 jmp 4f
29528 SRC(1: movw (%esi), %bx )
29529 addl $2, %esi
29530-DST( movw %bx, (%edi) )
29531+DST( movw %bx, %es:(%edi) )
29532 addl $2, %edi
29533 addw %bx, %ax
29534 adcl $0, %eax
29535@@ -329,30 +345,30 @@ DST( movw %bx, (%edi) )
29536 SRC(1: movl (%esi), %ebx )
29537 SRC( movl 4(%esi), %edx )
29538 adcl %ebx, %eax
29539-DST( movl %ebx, (%edi) )
29540+DST( movl %ebx, %es:(%edi) )
29541 adcl %edx, %eax
29542-DST( movl %edx, 4(%edi) )
29543+DST( movl %edx, %es:4(%edi) )
29544
29545 SRC( movl 8(%esi), %ebx )
29546 SRC( movl 12(%esi), %edx )
29547 adcl %ebx, %eax
29548-DST( movl %ebx, 8(%edi) )
29549+DST( movl %ebx, %es:8(%edi) )
29550 adcl %edx, %eax
29551-DST( movl %edx, 12(%edi) )
29552+DST( movl %edx, %es:12(%edi) )
29553
29554 SRC( movl 16(%esi), %ebx )
29555 SRC( movl 20(%esi), %edx )
29556 adcl %ebx, %eax
29557-DST( movl %ebx, 16(%edi) )
29558+DST( movl %ebx, %es:16(%edi) )
29559 adcl %edx, %eax
29560-DST( movl %edx, 20(%edi) )
29561+DST( movl %edx, %es:20(%edi) )
29562
29563 SRC( movl 24(%esi), %ebx )
29564 SRC( movl 28(%esi), %edx )
29565 adcl %ebx, %eax
29566-DST( movl %ebx, 24(%edi) )
29567+DST( movl %ebx, %es:24(%edi) )
29568 adcl %edx, %eax
29569-DST( movl %edx, 28(%edi) )
29570+DST( movl %edx, %es:28(%edi) )
29571
29572 lea 32(%esi), %esi
29573 lea 32(%edi), %edi
29574@@ -366,7 +382,7 @@ DST( movl %edx, 28(%edi) )
29575 shrl $2, %edx # This clears CF
29576 SRC(3: movl (%esi), %ebx )
29577 adcl %ebx, %eax
29578-DST( movl %ebx, (%edi) )
29579+DST( movl %ebx, %es:(%edi) )
29580 lea 4(%esi), %esi
29581 lea 4(%edi), %edi
29582 dec %edx
29583@@ -378,12 +394,12 @@ DST( movl %ebx, (%edi) )
29584 jb 5f
29585 SRC( movw (%esi), %cx )
29586 leal 2(%esi), %esi
29587-DST( movw %cx, (%edi) )
29588+DST( movw %cx, %es:(%edi) )
29589 leal 2(%edi), %edi
29590 je 6f
29591 shll $16,%ecx
29592 SRC(5: movb (%esi), %cl )
29593-DST( movb %cl, (%edi) )
29594+DST( movb %cl, %es:(%edi) )
29595 6: addl %ecx, %eax
29596 adcl $0, %eax
29597 7:
29598@@ -394,7 +410,7 @@ DST( movb %cl, (%edi) )
29599
29600 6001:
29601 movl ARGBASE+20(%esp), %ebx # src_err_ptr
29602- movl $-EFAULT, (%ebx)
29603+ movl $-EFAULT, %ss:(%ebx)
29604
29605 # zero the complete destination - computing the rest
29606 # is too much work
29607@@ -407,11 +423,15 @@ DST( movb %cl, (%edi) )
29608
29609 6002:
29610 movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29611- movl $-EFAULT,(%ebx)
29612+ movl $-EFAULT,%ss:(%ebx)
29613 jmp 5000b
29614
29615 .previous
29616
29617+ pushl_cfi %ss
29618+ popl_cfi %ds
29619+ pushl_cfi %ss
29620+ popl_cfi %es
29621 popl_cfi %ebx
29622 CFI_RESTORE ebx
29623 popl_cfi %esi
29624@@ -421,26 +441,43 @@ DST( movb %cl, (%edi) )
29625 popl_cfi %ecx # equivalent to addl $4,%esp
29626 ret
29627 CFI_ENDPROC
29628-ENDPROC(csum_partial_copy_generic)
29629+ENDPROC(csum_partial_copy_generic_to_user)
29630
29631 #else
29632
29633 /* Version for PentiumII/PPro */
29634
29635 #define ROUND1(x) \
29636+ nop; nop; nop; \
29637 SRC(movl x(%esi), %ebx ) ; \
29638 addl %ebx, %eax ; \
29639- DST(movl %ebx, x(%edi) ) ;
29640+ DST(movl %ebx, %es:x(%edi)) ;
29641
29642 #define ROUND(x) \
29643+ nop; nop; nop; \
29644 SRC(movl x(%esi), %ebx ) ; \
29645 adcl %ebx, %eax ; \
29646- DST(movl %ebx, x(%edi) ) ;
29647+ DST(movl %ebx, %es:x(%edi)) ;
29648
29649 #define ARGBASE 12
29650-
29651-ENTRY(csum_partial_copy_generic)
29652+
29653+ENTRY(csum_partial_copy_generic_to_user)
29654 CFI_STARTPROC
29655+
29656+#ifdef CONFIG_PAX_MEMORY_UDEREF
29657+ pushl_cfi %gs
29658+ popl_cfi %es
29659+ jmp csum_partial_copy_generic
29660+#endif
29661+
29662+ENTRY(csum_partial_copy_generic_from_user)
29663+
29664+#ifdef CONFIG_PAX_MEMORY_UDEREF
29665+ pushl_cfi %gs
29666+ popl_cfi %ds
29667+#endif
29668+
29669+ENTRY(csum_partial_copy_generic)
29670 pushl_cfi %ebx
29671 CFI_REL_OFFSET ebx, 0
29672 pushl_cfi %edi
29673@@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
29674 subl %ebx, %edi
29675 lea -1(%esi),%edx
29676 andl $-32,%edx
29677- lea 3f(%ebx,%ebx), %ebx
29678+ lea 3f(%ebx,%ebx,2), %ebx
29679 testl %esi, %esi
29680 jmp *%ebx
29681 1: addl $64,%esi
29682@@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
29683 jb 5f
29684 SRC( movw (%esi), %dx )
29685 leal 2(%esi), %esi
29686-DST( movw %dx, (%edi) )
29687+DST( movw %dx, %es:(%edi) )
29688 leal 2(%edi), %edi
29689 je 6f
29690 shll $16,%edx
29691 5:
29692 SRC( movb (%esi), %dl )
29693-DST( movb %dl, (%edi) )
29694+DST( movb %dl, %es:(%edi) )
29695 6: addl %edx, %eax
29696 adcl $0, %eax
29697 7:
29698 .section .fixup, "ax"
29699 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
29700- movl $-EFAULT, (%ebx)
29701+ movl $-EFAULT, %ss:(%ebx)
29702 # zero the complete destination (computing the rest is too much work)
29703 movl ARGBASE+8(%esp),%edi # dst
29704 movl ARGBASE+12(%esp),%ecx # len
29705@@ -502,10 +539,17 @@ DST( movb %dl, (%edi) )
29706 rep; stosb
29707 jmp 7b
29708 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29709- movl $-EFAULT, (%ebx)
29710+ movl $-EFAULT, %ss:(%ebx)
29711 jmp 7b
29712 .previous
29713
29714+#ifdef CONFIG_PAX_MEMORY_UDEREF
29715+ pushl_cfi %ss
29716+ popl_cfi %ds
29717+ pushl_cfi %ss
29718+ popl_cfi %es
29719+#endif
29720+
29721 popl_cfi %esi
29722 CFI_RESTORE esi
29723 popl_cfi %edi
29724@@ -514,7 +558,7 @@ DST( movb %dl, (%edi) )
29725 CFI_RESTORE ebx
29726 ret
29727 CFI_ENDPROC
29728-ENDPROC(csum_partial_copy_generic)
29729+ENDPROC(csum_partial_copy_generic_to_user)
29730
29731 #undef ROUND
29732 #undef ROUND1
29733diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
29734index f2145cf..cea889d 100644
29735--- a/arch/x86/lib/clear_page_64.S
29736+++ b/arch/x86/lib/clear_page_64.S
29737@@ -11,6 +11,7 @@ ENTRY(clear_page_c)
29738 movl $4096/8,%ecx
29739 xorl %eax,%eax
29740 rep stosq
29741+ pax_force_retaddr
29742 ret
29743 CFI_ENDPROC
29744 ENDPROC(clear_page_c)
29745@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
29746 movl $4096,%ecx
29747 xorl %eax,%eax
29748 rep stosb
29749+ pax_force_retaddr
29750 ret
29751 CFI_ENDPROC
29752 ENDPROC(clear_page_c_e)
29753@@ -43,6 +45,7 @@ ENTRY(clear_page)
29754 leaq 64(%rdi),%rdi
29755 jnz .Lloop
29756 nop
29757+ pax_force_retaddr
29758 ret
29759 CFI_ENDPROC
29760 .Lclear_page_end:
29761@@ -58,7 +61,7 @@ ENDPROC(clear_page)
29762
29763 #include <asm/cpufeature.h>
29764
29765- .section .altinstr_replacement,"ax"
29766+ .section .altinstr_replacement,"a"
29767 1: .byte 0xeb /* jmp <disp8> */
29768 .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
29769 2: .byte 0xeb /* jmp <disp8> */
29770diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
29771index 40a1725..5d12ac4 100644
29772--- a/arch/x86/lib/cmpxchg16b_emu.S
29773+++ b/arch/x86/lib/cmpxchg16b_emu.S
29774@@ -8,6 +8,7 @@
29775 #include <linux/linkage.h>
29776 #include <asm/dwarf2.h>
29777 #include <asm/percpu.h>
29778+#include <asm/alternative-asm.h>
29779
29780 .text
29781
29782@@ -46,12 +47,14 @@ CFI_STARTPROC
29783 CFI_REMEMBER_STATE
29784 popfq_cfi
29785 mov $1, %al
29786+ pax_force_retaddr
29787 ret
29788
29789 CFI_RESTORE_STATE
29790 .Lnot_same:
29791 popfq_cfi
29792 xor %al,%al
29793+ pax_force_retaddr
29794 ret
29795
29796 CFI_ENDPROC
29797diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
29798index 176cca6..e0d658e 100644
29799--- a/arch/x86/lib/copy_page_64.S
29800+++ b/arch/x86/lib/copy_page_64.S
29801@@ -9,6 +9,7 @@ copy_page_rep:
29802 CFI_STARTPROC
29803 movl $4096/8, %ecx
29804 rep movsq
29805+ pax_force_retaddr
29806 ret
29807 CFI_ENDPROC
29808 ENDPROC(copy_page_rep)
29809@@ -24,8 +25,8 @@ ENTRY(copy_page)
29810 CFI_ADJUST_CFA_OFFSET 2*8
29811 movq %rbx, (%rsp)
29812 CFI_REL_OFFSET rbx, 0
29813- movq %r12, 1*8(%rsp)
29814- CFI_REL_OFFSET r12, 1*8
29815+ movq %r13, 1*8(%rsp)
29816+ CFI_REL_OFFSET r13, 1*8
29817
29818 movl $(4096/64)-5, %ecx
29819 .p2align 4
29820@@ -38,7 +39,7 @@ ENTRY(copy_page)
29821 movq 0x8*4(%rsi), %r9
29822 movq 0x8*5(%rsi), %r10
29823 movq 0x8*6(%rsi), %r11
29824- movq 0x8*7(%rsi), %r12
29825+ movq 0x8*7(%rsi), %r13
29826
29827 prefetcht0 5*64(%rsi)
29828
29829@@ -49,7 +50,7 @@ ENTRY(copy_page)
29830 movq %r9, 0x8*4(%rdi)
29831 movq %r10, 0x8*5(%rdi)
29832 movq %r11, 0x8*6(%rdi)
29833- movq %r12, 0x8*7(%rdi)
29834+ movq %r13, 0x8*7(%rdi)
29835
29836 leaq 64 (%rsi), %rsi
29837 leaq 64 (%rdi), %rdi
29838@@ -68,7 +69,7 @@ ENTRY(copy_page)
29839 movq 0x8*4(%rsi), %r9
29840 movq 0x8*5(%rsi), %r10
29841 movq 0x8*6(%rsi), %r11
29842- movq 0x8*7(%rsi), %r12
29843+ movq 0x8*7(%rsi), %r13
29844
29845 movq %rax, 0x8*0(%rdi)
29846 movq %rbx, 0x8*1(%rdi)
29847@@ -77,7 +78,7 @@ ENTRY(copy_page)
29848 movq %r9, 0x8*4(%rdi)
29849 movq %r10, 0x8*5(%rdi)
29850 movq %r11, 0x8*6(%rdi)
29851- movq %r12, 0x8*7(%rdi)
29852+ movq %r13, 0x8*7(%rdi)
29853
29854 leaq 64(%rdi), %rdi
29855 leaq 64(%rsi), %rsi
29856@@ -85,10 +86,11 @@ ENTRY(copy_page)
29857
29858 movq (%rsp), %rbx
29859 CFI_RESTORE rbx
29860- movq 1*8(%rsp), %r12
29861- CFI_RESTORE r12
29862+ movq 1*8(%rsp), %r13
29863+ CFI_RESTORE r13
29864 addq $2*8, %rsp
29865 CFI_ADJUST_CFA_OFFSET -2*8
29866+ pax_force_retaddr
29867 ret
29868 .Lcopy_page_end:
29869 CFI_ENDPROC
29870@@ -99,7 +101,7 @@ ENDPROC(copy_page)
29871
29872 #include <asm/cpufeature.h>
29873
29874- .section .altinstr_replacement,"ax"
29875+ .section .altinstr_replacement,"a"
29876 1: .byte 0xeb /* jmp <disp8> */
29877 .byte (copy_page_rep - copy_page) - (2f - 1b) /* offset */
29878 2:
29879diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
29880index dee945d..a84067b 100644
29881--- a/arch/x86/lib/copy_user_64.S
29882+++ b/arch/x86/lib/copy_user_64.S
29883@@ -18,31 +18,7 @@
29884 #include <asm/alternative-asm.h>
29885 #include <asm/asm.h>
29886 #include <asm/smap.h>
29887-
29888-/*
29889- * By placing feature2 after feature1 in altinstructions section, we logically
29890- * implement:
29891- * If CPU has feature2, jmp to alt2 is used
29892- * else if CPU has feature1, jmp to alt1 is used
29893- * else jmp to orig is used.
29894- */
29895- .macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2
29896-0:
29897- .byte 0xe9 /* 32bit jump */
29898- .long \orig-1f /* by default jump to orig */
29899-1:
29900- .section .altinstr_replacement,"ax"
29901-2: .byte 0xe9 /* near jump with 32bit immediate */
29902- .long \alt1-1b /* offset */ /* or alternatively to alt1 */
29903-3: .byte 0xe9 /* near jump with 32bit immediate */
29904- .long \alt2-1b /* offset */ /* or alternatively to alt2 */
29905- .previous
29906-
29907- .section .altinstructions,"a"
29908- altinstruction_entry 0b,2b,\feature1,5,5
29909- altinstruction_entry 0b,3b,\feature2,5,5
29910- .previous
29911- .endm
29912+#include <asm/pgtable.h>
29913
29914 .macro ALIGN_DESTINATION
29915 #ifdef FIX_ALIGNMENT
29916@@ -70,52 +46,6 @@
29917 #endif
29918 .endm
29919
29920-/* Standard copy_to_user with segment limit checking */
29921-ENTRY(_copy_to_user)
29922- CFI_STARTPROC
29923- GET_THREAD_INFO(%rax)
29924- movq %rdi,%rcx
29925- addq %rdx,%rcx
29926- jc bad_to_user
29927- cmpq TI_addr_limit(%rax),%rcx
29928- ja bad_to_user
29929- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
29930- copy_user_generic_unrolled,copy_user_generic_string, \
29931- copy_user_enhanced_fast_string
29932- CFI_ENDPROC
29933-ENDPROC(_copy_to_user)
29934-
29935-/* Standard copy_from_user with segment limit checking */
29936-ENTRY(_copy_from_user)
29937- CFI_STARTPROC
29938- GET_THREAD_INFO(%rax)
29939- movq %rsi,%rcx
29940- addq %rdx,%rcx
29941- jc bad_from_user
29942- cmpq TI_addr_limit(%rax),%rcx
29943- ja bad_from_user
29944- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
29945- copy_user_generic_unrolled,copy_user_generic_string, \
29946- copy_user_enhanced_fast_string
29947- CFI_ENDPROC
29948-ENDPROC(_copy_from_user)
29949-
29950- .section .fixup,"ax"
29951- /* must zero dest */
29952-ENTRY(bad_from_user)
29953-bad_from_user:
29954- CFI_STARTPROC
29955- movl %edx,%ecx
29956- xorl %eax,%eax
29957- rep
29958- stosb
29959-bad_to_user:
29960- movl %edx,%eax
29961- ret
29962- CFI_ENDPROC
29963-ENDPROC(bad_from_user)
29964- .previous
29965-
29966 /*
29967 * copy_user_generic_unrolled - memory copy with exception handling.
29968 * This version is for CPUs like P4 that don't have efficient micro
29969@@ -131,6 +61,7 @@ ENDPROC(bad_from_user)
29970 */
29971 ENTRY(copy_user_generic_unrolled)
29972 CFI_STARTPROC
29973+ ASM_PAX_OPEN_USERLAND
29974 ASM_STAC
29975 cmpl $8,%edx
29976 jb 20f /* less then 8 bytes, go to byte copy loop */
29977@@ -180,6 +111,8 @@ ENTRY(copy_user_generic_unrolled)
29978 jnz 21b
29979 23: xor %eax,%eax
29980 ASM_CLAC
29981+ ASM_PAX_CLOSE_USERLAND
29982+ pax_force_retaddr
29983 ret
29984
29985 .section .fixup,"ax"
29986@@ -235,6 +168,7 @@ ENDPROC(copy_user_generic_unrolled)
29987 */
29988 ENTRY(copy_user_generic_string)
29989 CFI_STARTPROC
29990+ ASM_PAX_OPEN_USERLAND
29991 ASM_STAC
29992 cmpl $8,%edx
29993 jb 2f /* less than 8 bytes, go to byte copy loop */
29994@@ -249,6 +183,8 @@ ENTRY(copy_user_generic_string)
29995 movsb
29996 xorl %eax,%eax
29997 ASM_CLAC
29998+ ASM_PAX_CLOSE_USERLAND
29999+ pax_force_retaddr
30000 ret
30001
30002 .section .fixup,"ax"
30003@@ -276,12 +212,15 @@ ENDPROC(copy_user_generic_string)
30004 */
30005 ENTRY(copy_user_enhanced_fast_string)
30006 CFI_STARTPROC
30007+ ASM_PAX_OPEN_USERLAND
30008 ASM_STAC
30009 movl %edx,%ecx
30010 1: rep
30011 movsb
30012 xorl %eax,%eax
30013 ASM_CLAC
30014+ ASM_PAX_CLOSE_USERLAND
30015+ pax_force_retaddr
30016 ret
30017
30018 .section .fixup,"ax"
30019diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
30020index 6a4f43c..c70fb52 100644
30021--- a/arch/x86/lib/copy_user_nocache_64.S
30022+++ b/arch/x86/lib/copy_user_nocache_64.S
30023@@ -8,6 +8,7 @@
30024
30025 #include <linux/linkage.h>
30026 #include <asm/dwarf2.h>
30027+#include <asm/alternative-asm.h>
30028
30029 #define FIX_ALIGNMENT 1
30030
30031@@ -16,6 +17,7 @@
30032 #include <asm/thread_info.h>
30033 #include <asm/asm.h>
30034 #include <asm/smap.h>
30035+#include <asm/pgtable.h>
30036
30037 .macro ALIGN_DESTINATION
30038 #ifdef FIX_ALIGNMENT
30039@@ -49,6 +51,16 @@
30040 */
30041 ENTRY(__copy_user_nocache)
30042 CFI_STARTPROC
30043+
30044+#ifdef CONFIG_PAX_MEMORY_UDEREF
30045+ mov pax_user_shadow_base,%rcx
30046+ cmp %rcx,%rsi
30047+ jae 1f
30048+ add %rcx,%rsi
30049+1:
30050+#endif
30051+
30052+ ASM_PAX_OPEN_USERLAND
30053 ASM_STAC
30054 cmpl $8,%edx
30055 jb 20f /* less then 8 bytes, go to byte copy loop */
30056@@ -98,7 +110,9 @@ ENTRY(__copy_user_nocache)
30057 jnz 21b
30058 23: xorl %eax,%eax
30059 ASM_CLAC
30060+ ASM_PAX_CLOSE_USERLAND
30061 sfence
30062+ pax_force_retaddr
30063 ret
30064
30065 .section .fixup,"ax"
30066diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
30067index 2419d5f..fe52d0e 100644
30068--- a/arch/x86/lib/csum-copy_64.S
30069+++ b/arch/x86/lib/csum-copy_64.S
30070@@ -9,6 +9,7 @@
30071 #include <asm/dwarf2.h>
30072 #include <asm/errno.h>
30073 #include <asm/asm.h>
30074+#include <asm/alternative-asm.h>
30075
30076 /*
30077 * Checksum copy with exception handling.
30078@@ -56,8 +57,8 @@ ENTRY(csum_partial_copy_generic)
30079 CFI_ADJUST_CFA_OFFSET 7*8
30080 movq %rbx, 2*8(%rsp)
30081 CFI_REL_OFFSET rbx, 2*8
30082- movq %r12, 3*8(%rsp)
30083- CFI_REL_OFFSET r12, 3*8
30084+ movq %r15, 3*8(%rsp)
30085+ CFI_REL_OFFSET r15, 3*8
30086 movq %r14, 4*8(%rsp)
30087 CFI_REL_OFFSET r14, 4*8
30088 movq %r13, 5*8(%rsp)
30089@@ -72,16 +73,16 @@ ENTRY(csum_partial_copy_generic)
30090 movl %edx, %ecx
30091
30092 xorl %r9d, %r9d
30093- movq %rcx, %r12
30094+ movq %rcx, %r15
30095
30096- shrq $6, %r12
30097+ shrq $6, %r15
30098 jz .Lhandle_tail /* < 64 */
30099
30100 clc
30101
30102 /* main loop. clear in 64 byte blocks */
30103 /* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
30104- /* r11: temp3, rdx: temp4, r12 loopcnt */
30105+ /* r11: temp3, rdx: temp4, r15 loopcnt */
30106 /* r10: temp5, rbp: temp6, r14 temp7, r13 temp8 */
30107 .p2align 4
30108 .Lloop:
30109@@ -115,7 +116,7 @@ ENTRY(csum_partial_copy_generic)
30110 adcq %r14, %rax
30111 adcq %r13, %rax
30112
30113- decl %r12d
30114+ decl %r15d
30115
30116 dest
30117 movq %rbx, (%rsi)
30118@@ -210,8 +211,8 @@ ENTRY(csum_partial_copy_generic)
30119 .Lende:
30120 movq 2*8(%rsp), %rbx
30121 CFI_RESTORE rbx
30122- movq 3*8(%rsp), %r12
30123- CFI_RESTORE r12
30124+ movq 3*8(%rsp), %r15
30125+ CFI_RESTORE r15
30126 movq 4*8(%rsp), %r14
30127 CFI_RESTORE r14
30128 movq 5*8(%rsp), %r13
30129@@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
30130 CFI_RESTORE rbp
30131 addq $7*8, %rsp
30132 CFI_ADJUST_CFA_OFFSET -7*8
30133+ pax_force_retaddr
30134 ret
30135 CFI_RESTORE_STATE
30136
30137diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
30138index 1318f75..44c30fd 100644
30139--- a/arch/x86/lib/csum-wrappers_64.c
30140+++ b/arch/x86/lib/csum-wrappers_64.c
30141@@ -52,10 +52,12 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
30142 len -= 2;
30143 }
30144 }
30145+ pax_open_userland();
30146 stac();
30147- isum = csum_partial_copy_generic((__force const void *)src,
30148+ isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
30149 dst, len, isum, errp, NULL);
30150 clac();
30151+ pax_close_userland();
30152 if (unlikely(*errp))
30153 goto out_err;
30154
30155@@ -109,10 +111,12 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
30156 }
30157
30158 *errp = 0;
30159+ pax_open_userland();
30160 stac();
30161- ret = csum_partial_copy_generic(src, (void __force *)dst,
30162+ ret = csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
30163 len, isum, NULL, errp);
30164 clac();
30165+ pax_close_userland();
30166 return ret;
30167 }
30168 EXPORT_SYMBOL(csum_partial_copy_to_user);
30169diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
30170index a451235..a74bfa3 100644
30171--- a/arch/x86/lib/getuser.S
30172+++ b/arch/x86/lib/getuser.S
30173@@ -33,17 +33,40 @@
30174 #include <asm/thread_info.h>
30175 #include <asm/asm.h>
30176 #include <asm/smap.h>
30177+#include <asm/segment.h>
30178+#include <asm/pgtable.h>
30179+#include <asm/alternative-asm.h>
30180+
30181+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
30182+#define __copyuser_seg gs;
30183+#else
30184+#define __copyuser_seg
30185+#endif
30186
30187 .text
30188 ENTRY(__get_user_1)
30189 CFI_STARTPROC
30190+
30191+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30192 GET_THREAD_INFO(%_ASM_DX)
30193 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30194 jae bad_get_user
30195+
30196+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30197+ mov pax_user_shadow_base,%_ASM_DX
30198+ cmp %_ASM_DX,%_ASM_AX
30199+ jae 1234f
30200+ add %_ASM_DX,%_ASM_AX
30201+1234:
30202+#endif
30203+
30204+#endif
30205+
30206 ASM_STAC
30207-1: movzbl (%_ASM_AX),%edx
30208+1: __copyuser_seg movzbl (%_ASM_AX),%edx
30209 xor %eax,%eax
30210 ASM_CLAC
30211+ pax_force_retaddr
30212 ret
30213 CFI_ENDPROC
30214 ENDPROC(__get_user_1)
30215@@ -51,14 +74,28 @@ ENDPROC(__get_user_1)
30216 ENTRY(__get_user_2)
30217 CFI_STARTPROC
30218 add $1,%_ASM_AX
30219+
30220+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30221 jc bad_get_user
30222 GET_THREAD_INFO(%_ASM_DX)
30223 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30224 jae bad_get_user
30225+
30226+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30227+ mov pax_user_shadow_base,%_ASM_DX
30228+ cmp %_ASM_DX,%_ASM_AX
30229+ jae 1234f
30230+ add %_ASM_DX,%_ASM_AX
30231+1234:
30232+#endif
30233+
30234+#endif
30235+
30236 ASM_STAC
30237-2: movzwl -1(%_ASM_AX),%edx
30238+2: __copyuser_seg movzwl -1(%_ASM_AX),%edx
30239 xor %eax,%eax
30240 ASM_CLAC
30241+ pax_force_retaddr
30242 ret
30243 CFI_ENDPROC
30244 ENDPROC(__get_user_2)
30245@@ -66,14 +103,28 @@ ENDPROC(__get_user_2)
30246 ENTRY(__get_user_4)
30247 CFI_STARTPROC
30248 add $3,%_ASM_AX
30249+
30250+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30251 jc bad_get_user
30252 GET_THREAD_INFO(%_ASM_DX)
30253 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30254 jae bad_get_user
30255+
30256+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30257+ mov pax_user_shadow_base,%_ASM_DX
30258+ cmp %_ASM_DX,%_ASM_AX
30259+ jae 1234f
30260+ add %_ASM_DX,%_ASM_AX
30261+1234:
30262+#endif
30263+
30264+#endif
30265+
30266 ASM_STAC
30267-3: movl -3(%_ASM_AX),%edx
30268+3: __copyuser_seg movl -3(%_ASM_AX),%edx
30269 xor %eax,%eax
30270 ASM_CLAC
30271+ pax_force_retaddr
30272 ret
30273 CFI_ENDPROC
30274 ENDPROC(__get_user_4)
30275@@ -86,10 +137,20 @@ ENTRY(__get_user_8)
30276 GET_THREAD_INFO(%_ASM_DX)
30277 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30278 jae bad_get_user
30279+
30280+#ifdef CONFIG_PAX_MEMORY_UDEREF
30281+ mov pax_user_shadow_base,%_ASM_DX
30282+ cmp %_ASM_DX,%_ASM_AX
30283+ jae 1234f
30284+ add %_ASM_DX,%_ASM_AX
30285+1234:
30286+#endif
30287+
30288 ASM_STAC
30289 4: movq -7(%_ASM_AX),%rdx
30290 xor %eax,%eax
30291 ASM_CLAC
30292+ pax_force_retaddr
30293 ret
30294 #else
30295 add $7,%_ASM_AX
30296@@ -98,10 +159,11 @@ ENTRY(__get_user_8)
30297 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30298 jae bad_get_user_8
30299 ASM_STAC
30300-4: movl -7(%_ASM_AX),%edx
30301-5: movl -3(%_ASM_AX),%ecx
30302+4: __copyuser_seg movl -7(%_ASM_AX),%edx
30303+5: __copyuser_seg movl -3(%_ASM_AX),%ecx
30304 xor %eax,%eax
30305 ASM_CLAC
30306+ pax_force_retaddr
30307 ret
30308 #endif
30309 CFI_ENDPROC
30310@@ -113,6 +175,7 @@ bad_get_user:
30311 xor %edx,%edx
30312 mov $(-EFAULT),%_ASM_AX
30313 ASM_CLAC
30314+ pax_force_retaddr
30315 ret
30316 CFI_ENDPROC
30317 END(bad_get_user)
30318@@ -124,6 +187,7 @@ bad_get_user_8:
30319 xor %ecx,%ecx
30320 mov $(-EFAULT),%_ASM_AX
30321 ASM_CLAC
30322+ pax_force_retaddr
30323 ret
30324 CFI_ENDPROC
30325 END(bad_get_user_8)
30326diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
30327index 85994f5..9929d7f 100644
30328--- a/arch/x86/lib/insn.c
30329+++ b/arch/x86/lib/insn.c
30330@@ -20,8 +20,10 @@
30331
30332 #ifdef __KERNEL__
30333 #include <linux/string.h>
30334+#include <asm/pgtable_types.h>
30335 #else
30336 #include <string.h>
30337+#define ktla_ktva(addr) addr
30338 #endif
30339 #include <asm/inat.h>
30340 #include <asm/insn.h>
30341@@ -60,9 +62,9 @@ void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
30342 buf_len = MAX_INSN_SIZE;
30343
30344 memset(insn, 0, sizeof(*insn));
30345- insn->kaddr = kaddr;
30346- insn->end_kaddr = kaddr + buf_len;
30347- insn->next_byte = kaddr;
30348+ insn->kaddr = ktla_ktva(kaddr);
30349+ insn->end_kaddr = insn->kaddr + buf_len;
30350+ insn->next_byte = insn->kaddr;
30351 insn->x86_64 = x86_64 ? 1 : 0;
30352 insn->opnd_bytes = 4;
30353 if (x86_64)
30354diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
30355index 05a95e7..326f2fa 100644
30356--- a/arch/x86/lib/iomap_copy_64.S
30357+++ b/arch/x86/lib/iomap_copy_64.S
30358@@ -17,6 +17,7 @@
30359
30360 #include <linux/linkage.h>
30361 #include <asm/dwarf2.h>
30362+#include <asm/alternative-asm.h>
30363
30364 /*
30365 * override generic version in lib/iomap_copy.c
30366@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
30367 CFI_STARTPROC
30368 movl %edx,%ecx
30369 rep movsd
30370+ pax_force_retaddr
30371 ret
30372 CFI_ENDPROC
30373 ENDPROC(__iowrite32_copy)
30374diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
30375index 89b53c9..97357ca 100644
30376--- a/arch/x86/lib/memcpy_64.S
30377+++ b/arch/x86/lib/memcpy_64.S
30378@@ -24,7 +24,7 @@
30379 * This gets patched over the unrolled variant (below) via the
30380 * alternative instructions framework:
30381 */
30382- .section .altinstr_replacement, "ax", @progbits
30383+ .section .altinstr_replacement, "a", @progbits
30384 .Lmemcpy_c:
30385 movq %rdi, %rax
30386 movq %rdx, %rcx
30387@@ -33,6 +33,7 @@
30388 rep movsq
30389 movl %edx, %ecx
30390 rep movsb
30391+ pax_force_retaddr
30392 ret
30393 .Lmemcpy_e:
30394 .previous
30395@@ -44,11 +45,12 @@
30396 * This gets patched over the unrolled variant (below) via the
30397 * alternative instructions framework:
30398 */
30399- .section .altinstr_replacement, "ax", @progbits
30400+ .section .altinstr_replacement, "a", @progbits
30401 .Lmemcpy_c_e:
30402 movq %rdi, %rax
30403 movq %rdx, %rcx
30404 rep movsb
30405+ pax_force_retaddr
30406 ret
30407 .Lmemcpy_e_e:
30408 .previous
30409@@ -138,6 +140,7 @@ ENTRY(memcpy)
30410 movq %r9, 1*8(%rdi)
30411 movq %r10, -2*8(%rdi, %rdx)
30412 movq %r11, -1*8(%rdi, %rdx)
30413+ pax_force_retaddr
30414 retq
30415 .p2align 4
30416 .Lless_16bytes:
30417@@ -150,6 +153,7 @@ ENTRY(memcpy)
30418 movq -1*8(%rsi, %rdx), %r9
30419 movq %r8, 0*8(%rdi)
30420 movq %r9, -1*8(%rdi, %rdx)
30421+ pax_force_retaddr
30422 retq
30423 .p2align 4
30424 .Lless_8bytes:
30425@@ -163,6 +167,7 @@ ENTRY(memcpy)
30426 movl -4(%rsi, %rdx), %r8d
30427 movl %ecx, (%rdi)
30428 movl %r8d, -4(%rdi, %rdx)
30429+ pax_force_retaddr
30430 retq
30431 .p2align 4
30432 .Lless_3bytes:
30433@@ -181,6 +186,7 @@ ENTRY(memcpy)
30434 movb %cl, (%rdi)
30435
30436 .Lend:
30437+ pax_force_retaddr
30438 retq
30439 CFI_ENDPROC
30440 ENDPROC(memcpy)
30441diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
30442index 9c4b530..830b77a 100644
30443--- a/arch/x86/lib/memmove_64.S
30444+++ b/arch/x86/lib/memmove_64.S
30445@@ -205,14 +205,16 @@ ENTRY(__memmove)
30446 movb (%rsi), %r11b
30447 movb %r11b, (%rdi)
30448 13:
30449+ pax_force_retaddr
30450 retq
30451 CFI_ENDPROC
30452
30453- .section .altinstr_replacement,"ax"
30454+ .section .altinstr_replacement,"a"
30455 .Lmemmove_begin_forward_efs:
30456 /* Forward moving data. */
30457 movq %rdx, %rcx
30458 rep movsb
30459+ pax_force_retaddr
30460 retq
30461 .Lmemmove_end_forward_efs:
30462 .previous
30463diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
30464index 6f44935..fbf5f6d 100644
30465--- a/arch/x86/lib/memset_64.S
30466+++ b/arch/x86/lib/memset_64.S
30467@@ -16,7 +16,7 @@
30468 *
30469 * rax original destination
30470 */
30471- .section .altinstr_replacement, "ax", @progbits
30472+ .section .altinstr_replacement, "a", @progbits
30473 .Lmemset_c:
30474 movq %rdi,%r9
30475 movq %rdx,%rcx
30476@@ -30,6 +30,7 @@
30477 movl %edx,%ecx
30478 rep stosb
30479 movq %r9,%rax
30480+ pax_force_retaddr
30481 ret
30482 .Lmemset_e:
30483 .previous
30484@@ -45,13 +46,14 @@
30485 *
30486 * rax original destination
30487 */
30488- .section .altinstr_replacement, "ax", @progbits
30489+ .section .altinstr_replacement, "a", @progbits
30490 .Lmemset_c_e:
30491 movq %rdi,%r9
30492 movb %sil,%al
30493 movq %rdx,%rcx
30494 rep stosb
30495 movq %r9,%rax
30496+ pax_force_retaddr
30497 ret
30498 .Lmemset_e_e:
30499 .previous
30500@@ -120,6 +122,7 @@ ENTRY(__memset)
30501
30502 .Lende:
30503 movq %r10,%rax
30504+ pax_force_retaddr
30505 ret
30506
30507 CFI_RESTORE_STATE
30508diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
30509index c9f2d9b..e7fd2c0 100644
30510--- a/arch/x86/lib/mmx_32.c
30511+++ b/arch/x86/lib/mmx_32.c
30512@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30513 {
30514 void *p;
30515 int i;
30516+ unsigned long cr0;
30517
30518 if (unlikely(in_interrupt()))
30519 return __memcpy(to, from, len);
30520@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30521 kernel_fpu_begin();
30522
30523 __asm__ __volatile__ (
30524- "1: prefetch (%0)\n" /* This set is 28 bytes */
30525- " prefetch 64(%0)\n"
30526- " prefetch 128(%0)\n"
30527- " prefetch 192(%0)\n"
30528- " prefetch 256(%0)\n"
30529+ "1: prefetch (%1)\n" /* This set is 28 bytes */
30530+ " prefetch 64(%1)\n"
30531+ " prefetch 128(%1)\n"
30532+ " prefetch 192(%1)\n"
30533+ " prefetch 256(%1)\n"
30534 "2: \n"
30535 ".section .fixup, \"ax\"\n"
30536- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30537+ "3: \n"
30538+
30539+#ifdef CONFIG_PAX_KERNEXEC
30540+ " movl %%cr0, %0\n"
30541+ " movl %0, %%eax\n"
30542+ " andl $0xFFFEFFFF, %%eax\n"
30543+ " movl %%eax, %%cr0\n"
30544+#endif
30545+
30546+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30547+
30548+#ifdef CONFIG_PAX_KERNEXEC
30549+ " movl %0, %%cr0\n"
30550+#endif
30551+
30552 " jmp 2b\n"
30553 ".previous\n"
30554 _ASM_EXTABLE(1b, 3b)
30555- : : "r" (from));
30556+ : "=&r" (cr0) : "r" (from) : "ax");
30557
30558 for ( ; i > 5; i--) {
30559 __asm__ __volatile__ (
30560- "1: prefetch 320(%0)\n"
30561- "2: movq (%0), %%mm0\n"
30562- " movq 8(%0), %%mm1\n"
30563- " movq 16(%0), %%mm2\n"
30564- " movq 24(%0), %%mm3\n"
30565- " movq %%mm0, (%1)\n"
30566- " movq %%mm1, 8(%1)\n"
30567- " movq %%mm2, 16(%1)\n"
30568- " movq %%mm3, 24(%1)\n"
30569- " movq 32(%0), %%mm0\n"
30570- " movq 40(%0), %%mm1\n"
30571- " movq 48(%0), %%mm2\n"
30572- " movq 56(%0), %%mm3\n"
30573- " movq %%mm0, 32(%1)\n"
30574- " movq %%mm1, 40(%1)\n"
30575- " movq %%mm2, 48(%1)\n"
30576- " movq %%mm3, 56(%1)\n"
30577+ "1: prefetch 320(%1)\n"
30578+ "2: movq (%1), %%mm0\n"
30579+ " movq 8(%1), %%mm1\n"
30580+ " movq 16(%1), %%mm2\n"
30581+ " movq 24(%1), %%mm3\n"
30582+ " movq %%mm0, (%2)\n"
30583+ " movq %%mm1, 8(%2)\n"
30584+ " movq %%mm2, 16(%2)\n"
30585+ " movq %%mm3, 24(%2)\n"
30586+ " movq 32(%1), %%mm0\n"
30587+ " movq 40(%1), %%mm1\n"
30588+ " movq 48(%1), %%mm2\n"
30589+ " movq 56(%1), %%mm3\n"
30590+ " movq %%mm0, 32(%2)\n"
30591+ " movq %%mm1, 40(%2)\n"
30592+ " movq %%mm2, 48(%2)\n"
30593+ " movq %%mm3, 56(%2)\n"
30594 ".section .fixup, \"ax\"\n"
30595- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30596+ "3:\n"
30597+
30598+#ifdef CONFIG_PAX_KERNEXEC
30599+ " movl %%cr0, %0\n"
30600+ " movl %0, %%eax\n"
30601+ " andl $0xFFFEFFFF, %%eax\n"
30602+ " movl %%eax, %%cr0\n"
30603+#endif
30604+
30605+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30606+
30607+#ifdef CONFIG_PAX_KERNEXEC
30608+ " movl %0, %%cr0\n"
30609+#endif
30610+
30611 " jmp 2b\n"
30612 ".previous\n"
30613 _ASM_EXTABLE(1b, 3b)
30614- : : "r" (from), "r" (to) : "memory");
30615+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30616
30617 from += 64;
30618 to += 64;
30619@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
30620 static void fast_copy_page(void *to, void *from)
30621 {
30622 int i;
30623+ unsigned long cr0;
30624
30625 kernel_fpu_begin();
30626
30627@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
30628 * but that is for later. -AV
30629 */
30630 __asm__ __volatile__(
30631- "1: prefetch (%0)\n"
30632- " prefetch 64(%0)\n"
30633- " prefetch 128(%0)\n"
30634- " prefetch 192(%0)\n"
30635- " prefetch 256(%0)\n"
30636+ "1: prefetch (%1)\n"
30637+ " prefetch 64(%1)\n"
30638+ " prefetch 128(%1)\n"
30639+ " prefetch 192(%1)\n"
30640+ " prefetch 256(%1)\n"
30641 "2: \n"
30642 ".section .fixup, \"ax\"\n"
30643- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30644+ "3: \n"
30645+
30646+#ifdef CONFIG_PAX_KERNEXEC
30647+ " movl %%cr0, %0\n"
30648+ " movl %0, %%eax\n"
30649+ " andl $0xFFFEFFFF, %%eax\n"
30650+ " movl %%eax, %%cr0\n"
30651+#endif
30652+
30653+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30654+
30655+#ifdef CONFIG_PAX_KERNEXEC
30656+ " movl %0, %%cr0\n"
30657+#endif
30658+
30659 " jmp 2b\n"
30660 ".previous\n"
30661- _ASM_EXTABLE(1b, 3b) : : "r" (from));
30662+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30663
30664 for (i = 0; i < (4096-320)/64; i++) {
30665 __asm__ __volatile__ (
30666- "1: prefetch 320(%0)\n"
30667- "2: movq (%0), %%mm0\n"
30668- " movntq %%mm0, (%1)\n"
30669- " movq 8(%0), %%mm1\n"
30670- " movntq %%mm1, 8(%1)\n"
30671- " movq 16(%0), %%mm2\n"
30672- " movntq %%mm2, 16(%1)\n"
30673- " movq 24(%0), %%mm3\n"
30674- " movntq %%mm3, 24(%1)\n"
30675- " movq 32(%0), %%mm4\n"
30676- " movntq %%mm4, 32(%1)\n"
30677- " movq 40(%0), %%mm5\n"
30678- " movntq %%mm5, 40(%1)\n"
30679- " movq 48(%0), %%mm6\n"
30680- " movntq %%mm6, 48(%1)\n"
30681- " movq 56(%0), %%mm7\n"
30682- " movntq %%mm7, 56(%1)\n"
30683+ "1: prefetch 320(%1)\n"
30684+ "2: movq (%1), %%mm0\n"
30685+ " movntq %%mm0, (%2)\n"
30686+ " movq 8(%1), %%mm1\n"
30687+ " movntq %%mm1, 8(%2)\n"
30688+ " movq 16(%1), %%mm2\n"
30689+ " movntq %%mm2, 16(%2)\n"
30690+ " movq 24(%1), %%mm3\n"
30691+ " movntq %%mm3, 24(%2)\n"
30692+ " movq 32(%1), %%mm4\n"
30693+ " movntq %%mm4, 32(%2)\n"
30694+ " movq 40(%1), %%mm5\n"
30695+ " movntq %%mm5, 40(%2)\n"
30696+ " movq 48(%1), %%mm6\n"
30697+ " movntq %%mm6, 48(%2)\n"
30698+ " movq 56(%1), %%mm7\n"
30699+ " movntq %%mm7, 56(%2)\n"
30700 ".section .fixup, \"ax\"\n"
30701- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30702+ "3:\n"
30703+
30704+#ifdef CONFIG_PAX_KERNEXEC
30705+ " movl %%cr0, %0\n"
30706+ " movl %0, %%eax\n"
30707+ " andl $0xFFFEFFFF, %%eax\n"
30708+ " movl %%eax, %%cr0\n"
30709+#endif
30710+
30711+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30712+
30713+#ifdef CONFIG_PAX_KERNEXEC
30714+ " movl %0, %%cr0\n"
30715+#endif
30716+
30717 " jmp 2b\n"
30718 ".previous\n"
30719- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
30720+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30721
30722 from += 64;
30723 to += 64;
30724@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
30725 static void fast_copy_page(void *to, void *from)
30726 {
30727 int i;
30728+ unsigned long cr0;
30729
30730 kernel_fpu_begin();
30731
30732 __asm__ __volatile__ (
30733- "1: prefetch (%0)\n"
30734- " prefetch 64(%0)\n"
30735- " prefetch 128(%0)\n"
30736- " prefetch 192(%0)\n"
30737- " prefetch 256(%0)\n"
30738+ "1: prefetch (%1)\n"
30739+ " prefetch 64(%1)\n"
30740+ " prefetch 128(%1)\n"
30741+ " prefetch 192(%1)\n"
30742+ " prefetch 256(%1)\n"
30743 "2: \n"
30744 ".section .fixup, \"ax\"\n"
30745- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30746+ "3: \n"
30747+
30748+#ifdef CONFIG_PAX_KERNEXEC
30749+ " movl %%cr0, %0\n"
30750+ " movl %0, %%eax\n"
30751+ " andl $0xFFFEFFFF, %%eax\n"
30752+ " movl %%eax, %%cr0\n"
30753+#endif
30754+
30755+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30756+
30757+#ifdef CONFIG_PAX_KERNEXEC
30758+ " movl %0, %%cr0\n"
30759+#endif
30760+
30761 " jmp 2b\n"
30762 ".previous\n"
30763- _ASM_EXTABLE(1b, 3b) : : "r" (from));
30764+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30765
30766 for (i = 0; i < 4096/64; i++) {
30767 __asm__ __volatile__ (
30768- "1: prefetch 320(%0)\n"
30769- "2: movq (%0), %%mm0\n"
30770- " movq 8(%0), %%mm1\n"
30771- " movq 16(%0), %%mm2\n"
30772- " movq 24(%0), %%mm3\n"
30773- " movq %%mm0, (%1)\n"
30774- " movq %%mm1, 8(%1)\n"
30775- " movq %%mm2, 16(%1)\n"
30776- " movq %%mm3, 24(%1)\n"
30777- " movq 32(%0), %%mm0\n"
30778- " movq 40(%0), %%mm1\n"
30779- " movq 48(%0), %%mm2\n"
30780- " movq 56(%0), %%mm3\n"
30781- " movq %%mm0, 32(%1)\n"
30782- " movq %%mm1, 40(%1)\n"
30783- " movq %%mm2, 48(%1)\n"
30784- " movq %%mm3, 56(%1)\n"
30785+ "1: prefetch 320(%1)\n"
30786+ "2: movq (%1), %%mm0\n"
30787+ " movq 8(%1), %%mm1\n"
30788+ " movq 16(%1), %%mm2\n"
30789+ " movq 24(%1), %%mm3\n"
30790+ " movq %%mm0, (%2)\n"
30791+ " movq %%mm1, 8(%2)\n"
30792+ " movq %%mm2, 16(%2)\n"
30793+ " movq %%mm3, 24(%2)\n"
30794+ " movq 32(%1), %%mm0\n"
30795+ " movq 40(%1), %%mm1\n"
30796+ " movq 48(%1), %%mm2\n"
30797+ " movq 56(%1), %%mm3\n"
30798+ " movq %%mm0, 32(%2)\n"
30799+ " movq %%mm1, 40(%2)\n"
30800+ " movq %%mm2, 48(%2)\n"
30801+ " movq %%mm3, 56(%2)\n"
30802 ".section .fixup, \"ax\"\n"
30803- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30804+ "3:\n"
30805+
30806+#ifdef CONFIG_PAX_KERNEXEC
30807+ " movl %%cr0, %0\n"
30808+ " movl %0, %%eax\n"
30809+ " andl $0xFFFEFFFF, %%eax\n"
30810+ " movl %%eax, %%cr0\n"
30811+#endif
30812+
30813+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30814+
30815+#ifdef CONFIG_PAX_KERNEXEC
30816+ " movl %0, %%cr0\n"
30817+#endif
30818+
30819 " jmp 2b\n"
30820 ".previous\n"
30821 _ASM_EXTABLE(1b, 3b)
30822- : : "r" (from), "r" (to) : "memory");
30823+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30824
30825 from += 64;
30826 to += 64;
30827diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
30828index f6d13ee..d789440 100644
30829--- a/arch/x86/lib/msr-reg.S
30830+++ b/arch/x86/lib/msr-reg.S
30831@@ -3,6 +3,7 @@
30832 #include <asm/dwarf2.h>
30833 #include <asm/asm.h>
30834 #include <asm/msr.h>
30835+#include <asm/alternative-asm.h>
30836
30837 #ifdef CONFIG_X86_64
30838 /*
30839@@ -37,6 +38,7 @@ ENTRY(\op\()_safe_regs)
30840 movl %edi, 28(%r10)
30841 popq_cfi %rbp
30842 popq_cfi %rbx
30843+ pax_force_retaddr
30844 ret
30845 3:
30846 CFI_RESTORE_STATE
30847diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
30848index fc6ba17..14ad9a5 100644
30849--- a/arch/x86/lib/putuser.S
30850+++ b/arch/x86/lib/putuser.S
30851@@ -16,7 +16,9 @@
30852 #include <asm/errno.h>
30853 #include <asm/asm.h>
30854 #include <asm/smap.h>
30855-
30856+#include <asm/segment.h>
30857+#include <asm/pgtable.h>
30858+#include <asm/alternative-asm.h>
30859
30860 /*
30861 * __put_user_X
30862@@ -30,57 +32,125 @@
30863 * as they get called from within inline assembly.
30864 */
30865
30866-#define ENTER CFI_STARTPROC ; \
30867- GET_THREAD_INFO(%_ASM_BX)
30868-#define EXIT ASM_CLAC ; \
30869- ret ; \
30870+#define ENTER CFI_STARTPROC
30871+#define EXIT ASM_CLAC ; \
30872+ pax_force_retaddr ; \
30873+ ret ; \
30874 CFI_ENDPROC
30875
30876+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30877+#define _DEST %_ASM_CX,%_ASM_BX
30878+#else
30879+#define _DEST %_ASM_CX
30880+#endif
30881+
30882+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
30883+#define __copyuser_seg gs;
30884+#else
30885+#define __copyuser_seg
30886+#endif
30887+
30888 .text
30889 ENTRY(__put_user_1)
30890 ENTER
30891+
30892+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30893+ GET_THREAD_INFO(%_ASM_BX)
30894 cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
30895 jae bad_put_user
30896+
30897+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30898+ mov pax_user_shadow_base,%_ASM_BX
30899+ cmp %_ASM_BX,%_ASM_CX
30900+ jb 1234f
30901+ xor %ebx,%ebx
30902+1234:
30903+#endif
30904+
30905+#endif
30906+
30907 ASM_STAC
30908-1: movb %al,(%_ASM_CX)
30909+1: __copyuser_seg movb %al,(_DEST)
30910 xor %eax,%eax
30911 EXIT
30912 ENDPROC(__put_user_1)
30913
30914 ENTRY(__put_user_2)
30915 ENTER
30916+
30917+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30918+ GET_THREAD_INFO(%_ASM_BX)
30919 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30920 sub $1,%_ASM_BX
30921 cmp %_ASM_BX,%_ASM_CX
30922 jae bad_put_user
30923+
30924+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30925+ mov pax_user_shadow_base,%_ASM_BX
30926+ cmp %_ASM_BX,%_ASM_CX
30927+ jb 1234f
30928+ xor %ebx,%ebx
30929+1234:
30930+#endif
30931+
30932+#endif
30933+
30934 ASM_STAC
30935-2: movw %ax,(%_ASM_CX)
30936+2: __copyuser_seg movw %ax,(_DEST)
30937 xor %eax,%eax
30938 EXIT
30939 ENDPROC(__put_user_2)
30940
30941 ENTRY(__put_user_4)
30942 ENTER
30943+
30944+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30945+ GET_THREAD_INFO(%_ASM_BX)
30946 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30947 sub $3,%_ASM_BX
30948 cmp %_ASM_BX,%_ASM_CX
30949 jae bad_put_user
30950+
30951+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30952+ mov pax_user_shadow_base,%_ASM_BX
30953+ cmp %_ASM_BX,%_ASM_CX
30954+ jb 1234f
30955+ xor %ebx,%ebx
30956+1234:
30957+#endif
30958+
30959+#endif
30960+
30961 ASM_STAC
30962-3: movl %eax,(%_ASM_CX)
30963+3: __copyuser_seg movl %eax,(_DEST)
30964 xor %eax,%eax
30965 EXIT
30966 ENDPROC(__put_user_4)
30967
30968 ENTRY(__put_user_8)
30969 ENTER
30970+
30971+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30972+ GET_THREAD_INFO(%_ASM_BX)
30973 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30974 sub $7,%_ASM_BX
30975 cmp %_ASM_BX,%_ASM_CX
30976 jae bad_put_user
30977+
30978+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30979+ mov pax_user_shadow_base,%_ASM_BX
30980+ cmp %_ASM_BX,%_ASM_CX
30981+ jb 1234f
30982+ xor %ebx,%ebx
30983+1234:
30984+#endif
30985+
30986+#endif
30987+
30988 ASM_STAC
30989-4: mov %_ASM_AX,(%_ASM_CX)
30990+4: __copyuser_seg mov %_ASM_AX,(_DEST)
30991 #ifdef CONFIG_X86_32
30992-5: movl %edx,4(%_ASM_CX)
30993+5: __copyuser_seg movl %edx,4(_DEST)
30994 #endif
30995 xor %eax,%eax
30996 EXIT
30997diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
30998index 5dff5f0..cadebf4 100644
30999--- a/arch/x86/lib/rwsem.S
31000+++ b/arch/x86/lib/rwsem.S
31001@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
31002 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
31003 CFI_RESTORE __ASM_REG(dx)
31004 restore_common_regs
31005+ pax_force_retaddr
31006 ret
31007 CFI_ENDPROC
31008 ENDPROC(call_rwsem_down_read_failed)
31009@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
31010 movq %rax,%rdi
31011 call rwsem_down_write_failed
31012 restore_common_regs
31013+ pax_force_retaddr
31014 ret
31015 CFI_ENDPROC
31016 ENDPROC(call_rwsem_down_write_failed)
31017@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
31018 movq %rax,%rdi
31019 call rwsem_wake
31020 restore_common_regs
31021-1: ret
31022+1: pax_force_retaddr
31023+ ret
31024 CFI_ENDPROC
31025 ENDPROC(call_rwsem_wake)
31026
31027@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
31028 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
31029 CFI_RESTORE __ASM_REG(dx)
31030 restore_common_regs
31031+ pax_force_retaddr
31032 ret
31033 CFI_ENDPROC
31034 ENDPROC(call_rwsem_downgrade_wake)
31035diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
31036index b30b5eb..2b57052 100644
31037--- a/arch/x86/lib/thunk_64.S
31038+++ b/arch/x86/lib/thunk_64.S
31039@@ -9,6 +9,7 @@
31040 #include <asm/dwarf2.h>
31041 #include <asm/calling.h>
31042 #include <asm/asm.h>
31043+#include <asm/alternative-asm.h>
31044
31045 /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
31046 .macro THUNK name, func, put_ret_addr_in_rdi=0
31047@@ -16,11 +17,11 @@
31048 \name:
31049 CFI_STARTPROC
31050
31051- /* this one pushes 9 elems, the next one would be %rIP */
31052- SAVE_ARGS
31053+ /* this one pushes 15+1 elems, the next one would be %rIP */
31054+ SAVE_ARGS 8
31055
31056 .if \put_ret_addr_in_rdi
31057- movq_cfi_restore 9*8, rdi
31058+ movq_cfi_restore RIP, rdi
31059 .endif
31060
31061 call \func
31062@@ -47,9 +48,10 @@
31063
31064 /* SAVE_ARGS below is used only for the .cfi directives it contains. */
31065 CFI_STARTPROC
31066- SAVE_ARGS
31067+ SAVE_ARGS 8
31068 restore:
31069- RESTORE_ARGS
31070+ RESTORE_ARGS 1,8
31071+ pax_force_retaddr
31072 ret
31073 CFI_ENDPROC
31074 _ASM_NOKPROBE(restore)
31075diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
31076index e2f5e21..4b22130 100644
31077--- a/arch/x86/lib/usercopy_32.c
31078+++ b/arch/x86/lib/usercopy_32.c
31079@@ -42,11 +42,13 @@ do { \
31080 int __d0; \
31081 might_fault(); \
31082 __asm__ __volatile__( \
31083+ __COPYUSER_SET_ES \
31084 ASM_STAC "\n" \
31085 "0: rep; stosl\n" \
31086 " movl %2,%0\n" \
31087 "1: rep; stosb\n" \
31088 "2: " ASM_CLAC "\n" \
31089+ __COPYUSER_RESTORE_ES \
31090 ".section .fixup,\"ax\"\n" \
31091 "3: lea 0(%2,%0,4),%0\n" \
31092 " jmp 2b\n" \
31093@@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
31094
31095 #ifdef CONFIG_X86_INTEL_USERCOPY
31096 static unsigned long
31097-__copy_user_intel(void __user *to, const void *from, unsigned long size)
31098+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
31099 {
31100 int d0, d1;
31101 __asm__ __volatile__(
31102@@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
31103 " .align 2,0x90\n"
31104 "3: movl 0(%4), %%eax\n"
31105 "4: movl 4(%4), %%edx\n"
31106- "5: movl %%eax, 0(%3)\n"
31107- "6: movl %%edx, 4(%3)\n"
31108+ "5: "__copyuser_seg" movl %%eax, 0(%3)\n"
31109+ "6: "__copyuser_seg" movl %%edx, 4(%3)\n"
31110 "7: movl 8(%4), %%eax\n"
31111 "8: movl 12(%4),%%edx\n"
31112- "9: movl %%eax, 8(%3)\n"
31113- "10: movl %%edx, 12(%3)\n"
31114+ "9: "__copyuser_seg" movl %%eax, 8(%3)\n"
31115+ "10: "__copyuser_seg" movl %%edx, 12(%3)\n"
31116 "11: movl 16(%4), %%eax\n"
31117 "12: movl 20(%4), %%edx\n"
31118- "13: movl %%eax, 16(%3)\n"
31119- "14: movl %%edx, 20(%3)\n"
31120+ "13: "__copyuser_seg" movl %%eax, 16(%3)\n"
31121+ "14: "__copyuser_seg" movl %%edx, 20(%3)\n"
31122 "15: movl 24(%4), %%eax\n"
31123 "16: movl 28(%4), %%edx\n"
31124- "17: movl %%eax, 24(%3)\n"
31125- "18: movl %%edx, 28(%3)\n"
31126+ "17: "__copyuser_seg" movl %%eax, 24(%3)\n"
31127+ "18: "__copyuser_seg" movl %%edx, 28(%3)\n"
31128 "19: movl 32(%4), %%eax\n"
31129 "20: movl 36(%4), %%edx\n"
31130- "21: movl %%eax, 32(%3)\n"
31131- "22: movl %%edx, 36(%3)\n"
31132+ "21: "__copyuser_seg" movl %%eax, 32(%3)\n"
31133+ "22: "__copyuser_seg" movl %%edx, 36(%3)\n"
31134 "23: movl 40(%4), %%eax\n"
31135 "24: movl 44(%4), %%edx\n"
31136- "25: movl %%eax, 40(%3)\n"
31137- "26: movl %%edx, 44(%3)\n"
31138+ "25: "__copyuser_seg" movl %%eax, 40(%3)\n"
31139+ "26: "__copyuser_seg" movl %%edx, 44(%3)\n"
31140 "27: movl 48(%4), %%eax\n"
31141 "28: movl 52(%4), %%edx\n"
31142- "29: movl %%eax, 48(%3)\n"
31143- "30: movl %%edx, 52(%3)\n"
31144+ "29: "__copyuser_seg" movl %%eax, 48(%3)\n"
31145+ "30: "__copyuser_seg" movl %%edx, 52(%3)\n"
31146 "31: movl 56(%4), %%eax\n"
31147 "32: movl 60(%4), %%edx\n"
31148- "33: movl %%eax, 56(%3)\n"
31149- "34: movl %%edx, 60(%3)\n"
31150+ "33: "__copyuser_seg" movl %%eax, 56(%3)\n"
31151+ "34: "__copyuser_seg" movl %%edx, 60(%3)\n"
31152 " addl $-64, %0\n"
31153 " addl $64, %4\n"
31154 " addl $64, %3\n"
31155@@ -149,10 +151,116 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
31156 " shrl $2, %0\n"
31157 " andl $3, %%eax\n"
31158 " cld\n"
31159+ __COPYUSER_SET_ES
31160 "99: rep; movsl\n"
31161 "36: movl %%eax, %0\n"
31162 "37: rep; movsb\n"
31163 "100:\n"
31164+ __COPYUSER_RESTORE_ES
31165+ ".section .fixup,\"ax\"\n"
31166+ "101: lea 0(%%eax,%0,4),%0\n"
31167+ " jmp 100b\n"
31168+ ".previous\n"
31169+ _ASM_EXTABLE(1b,100b)
31170+ _ASM_EXTABLE(2b,100b)
31171+ _ASM_EXTABLE(3b,100b)
31172+ _ASM_EXTABLE(4b,100b)
31173+ _ASM_EXTABLE(5b,100b)
31174+ _ASM_EXTABLE(6b,100b)
31175+ _ASM_EXTABLE(7b,100b)
31176+ _ASM_EXTABLE(8b,100b)
31177+ _ASM_EXTABLE(9b,100b)
31178+ _ASM_EXTABLE(10b,100b)
31179+ _ASM_EXTABLE(11b,100b)
31180+ _ASM_EXTABLE(12b,100b)
31181+ _ASM_EXTABLE(13b,100b)
31182+ _ASM_EXTABLE(14b,100b)
31183+ _ASM_EXTABLE(15b,100b)
31184+ _ASM_EXTABLE(16b,100b)
31185+ _ASM_EXTABLE(17b,100b)
31186+ _ASM_EXTABLE(18b,100b)
31187+ _ASM_EXTABLE(19b,100b)
31188+ _ASM_EXTABLE(20b,100b)
31189+ _ASM_EXTABLE(21b,100b)
31190+ _ASM_EXTABLE(22b,100b)
31191+ _ASM_EXTABLE(23b,100b)
31192+ _ASM_EXTABLE(24b,100b)
31193+ _ASM_EXTABLE(25b,100b)
31194+ _ASM_EXTABLE(26b,100b)
31195+ _ASM_EXTABLE(27b,100b)
31196+ _ASM_EXTABLE(28b,100b)
31197+ _ASM_EXTABLE(29b,100b)
31198+ _ASM_EXTABLE(30b,100b)
31199+ _ASM_EXTABLE(31b,100b)
31200+ _ASM_EXTABLE(32b,100b)
31201+ _ASM_EXTABLE(33b,100b)
31202+ _ASM_EXTABLE(34b,100b)
31203+ _ASM_EXTABLE(35b,100b)
31204+ _ASM_EXTABLE(36b,100b)
31205+ _ASM_EXTABLE(37b,100b)
31206+ _ASM_EXTABLE(99b,101b)
31207+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
31208+ : "1"(to), "2"(from), "0"(size)
31209+ : "eax", "edx", "memory");
31210+ return size;
31211+}
31212+
31213+static unsigned long
31214+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
31215+{
31216+ int d0, d1;
31217+ __asm__ __volatile__(
31218+ " .align 2,0x90\n"
31219+ "1: "__copyuser_seg" movl 32(%4), %%eax\n"
31220+ " cmpl $67, %0\n"
31221+ " jbe 3f\n"
31222+ "2: "__copyuser_seg" movl 64(%4), %%eax\n"
31223+ " .align 2,0x90\n"
31224+ "3: "__copyuser_seg" movl 0(%4), %%eax\n"
31225+ "4: "__copyuser_seg" movl 4(%4), %%edx\n"
31226+ "5: movl %%eax, 0(%3)\n"
31227+ "6: movl %%edx, 4(%3)\n"
31228+ "7: "__copyuser_seg" movl 8(%4), %%eax\n"
31229+ "8: "__copyuser_seg" movl 12(%4),%%edx\n"
31230+ "9: movl %%eax, 8(%3)\n"
31231+ "10: movl %%edx, 12(%3)\n"
31232+ "11: "__copyuser_seg" movl 16(%4), %%eax\n"
31233+ "12: "__copyuser_seg" movl 20(%4), %%edx\n"
31234+ "13: movl %%eax, 16(%3)\n"
31235+ "14: movl %%edx, 20(%3)\n"
31236+ "15: "__copyuser_seg" movl 24(%4), %%eax\n"
31237+ "16: "__copyuser_seg" movl 28(%4), %%edx\n"
31238+ "17: movl %%eax, 24(%3)\n"
31239+ "18: movl %%edx, 28(%3)\n"
31240+ "19: "__copyuser_seg" movl 32(%4), %%eax\n"
31241+ "20: "__copyuser_seg" movl 36(%4), %%edx\n"
31242+ "21: movl %%eax, 32(%3)\n"
31243+ "22: movl %%edx, 36(%3)\n"
31244+ "23: "__copyuser_seg" movl 40(%4), %%eax\n"
31245+ "24: "__copyuser_seg" movl 44(%4), %%edx\n"
31246+ "25: movl %%eax, 40(%3)\n"
31247+ "26: movl %%edx, 44(%3)\n"
31248+ "27: "__copyuser_seg" movl 48(%4), %%eax\n"
31249+ "28: "__copyuser_seg" movl 52(%4), %%edx\n"
31250+ "29: movl %%eax, 48(%3)\n"
31251+ "30: movl %%edx, 52(%3)\n"
31252+ "31: "__copyuser_seg" movl 56(%4), %%eax\n"
31253+ "32: "__copyuser_seg" movl 60(%4), %%edx\n"
31254+ "33: movl %%eax, 56(%3)\n"
31255+ "34: movl %%edx, 60(%3)\n"
31256+ " addl $-64, %0\n"
31257+ " addl $64, %4\n"
31258+ " addl $64, %3\n"
31259+ " cmpl $63, %0\n"
31260+ " ja 1b\n"
31261+ "35: movl %0, %%eax\n"
31262+ " shrl $2, %0\n"
31263+ " andl $3, %%eax\n"
31264+ " cld\n"
31265+ "99: rep; "__copyuser_seg" movsl\n"
31266+ "36: movl %%eax, %0\n"
31267+ "37: rep; "__copyuser_seg" movsb\n"
31268+ "100:\n"
31269 ".section .fixup,\"ax\"\n"
31270 "101: lea 0(%%eax,%0,4),%0\n"
31271 " jmp 100b\n"
31272@@ -207,41 +315,41 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
31273 int d0, d1;
31274 __asm__ __volatile__(
31275 " .align 2,0x90\n"
31276- "0: movl 32(%4), %%eax\n"
31277+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31278 " cmpl $67, %0\n"
31279 " jbe 2f\n"
31280- "1: movl 64(%4), %%eax\n"
31281+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31282 " .align 2,0x90\n"
31283- "2: movl 0(%4), %%eax\n"
31284- "21: movl 4(%4), %%edx\n"
31285+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31286+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31287 " movl %%eax, 0(%3)\n"
31288 " movl %%edx, 4(%3)\n"
31289- "3: movl 8(%4), %%eax\n"
31290- "31: movl 12(%4),%%edx\n"
31291+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31292+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31293 " movl %%eax, 8(%3)\n"
31294 " movl %%edx, 12(%3)\n"
31295- "4: movl 16(%4), %%eax\n"
31296- "41: movl 20(%4), %%edx\n"
31297+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31298+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31299 " movl %%eax, 16(%3)\n"
31300 " movl %%edx, 20(%3)\n"
31301- "10: movl 24(%4), %%eax\n"
31302- "51: movl 28(%4), %%edx\n"
31303+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31304+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31305 " movl %%eax, 24(%3)\n"
31306 " movl %%edx, 28(%3)\n"
31307- "11: movl 32(%4), %%eax\n"
31308- "61: movl 36(%4), %%edx\n"
31309+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31310+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31311 " movl %%eax, 32(%3)\n"
31312 " movl %%edx, 36(%3)\n"
31313- "12: movl 40(%4), %%eax\n"
31314- "71: movl 44(%4), %%edx\n"
31315+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31316+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31317 " movl %%eax, 40(%3)\n"
31318 " movl %%edx, 44(%3)\n"
31319- "13: movl 48(%4), %%eax\n"
31320- "81: movl 52(%4), %%edx\n"
31321+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31322+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31323 " movl %%eax, 48(%3)\n"
31324 " movl %%edx, 52(%3)\n"
31325- "14: movl 56(%4), %%eax\n"
31326- "91: movl 60(%4), %%edx\n"
31327+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31328+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31329 " movl %%eax, 56(%3)\n"
31330 " movl %%edx, 60(%3)\n"
31331 " addl $-64, %0\n"
31332@@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
31333 " shrl $2, %0\n"
31334 " andl $3, %%eax\n"
31335 " cld\n"
31336- "6: rep; movsl\n"
31337+ "6: rep; "__copyuser_seg" movsl\n"
31338 " movl %%eax,%0\n"
31339- "7: rep; movsb\n"
31340+ "7: rep; "__copyuser_seg" movsb\n"
31341 "8:\n"
31342 ".section .fixup,\"ax\"\n"
31343 "9: lea 0(%%eax,%0,4),%0\n"
31344@@ -305,41 +413,41 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
31345
31346 __asm__ __volatile__(
31347 " .align 2,0x90\n"
31348- "0: movl 32(%4), %%eax\n"
31349+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31350 " cmpl $67, %0\n"
31351 " jbe 2f\n"
31352- "1: movl 64(%4), %%eax\n"
31353+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31354 " .align 2,0x90\n"
31355- "2: movl 0(%4), %%eax\n"
31356- "21: movl 4(%4), %%edx\n"
31357+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31358+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31359 " movnti %%eax, 0(%3)\n"
31360 " movnti %%edx, 4(%3)\n"
31361- "3: movl 8(%4), %%eax\n"
31362- "31: movl 12(%4),%%edx\n"
31363+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31364+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31365 " movnti %%eax, 8(%3)\n"
31366 " movnti %%edx, 12(%3)\n"
31367- "4: movl 16(%4), %%eax\n"
31368- "41: movl 20(%4), %%edx\n"
31369+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31370+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31371 " movnti %%eax, 16(%3)\n"
31372 " movnti %%edx, 20(%3)\n"
31373- "10: movl 24(%4), %%eax\n"
31374- "51: movl 28(%4), %%edx\n"
31375+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31376+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31377 " movnti %%eax, 24(%3)\n"
31378 " movnti %%edx, 28(%3)\n"
31379- "11: movl 32(%4), %%eax\n"
31380- "61: movl 36(%4), %%edx\n"
31381+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31382+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31383 " movnti %%eax, 32(%3)\n"
31384 " movnti %%edx, 36(%3)\n"
31385- "12: movl 40(%4), %%eax\n"
31386- "71: movl 44(%4), %%edx\n"
31387+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31388+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31389 " movnti %%eax, 40(%3)\n"
31390 " movnti %%edx, 44(%3)\n"
31391- "13: movl 48(%4), %%eax\n"
31392- "81: movl 52(%4), %%edx\n"
31393+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31394+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31395 " movnti %%eax, 48(%3)\n"
31396 " movnti %%edx, 52(%3)\n"
31397- "14: movl 56(%4), %%eax\n"
31398- "91: movl 60(%4), %%edx\n"
31399+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31400+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31401 " movnti %%eax, 56(%3)\n"
31402 " movnti %%edx, 60(%3)\n"
31403 " addl $-64, %0\n"
31404@@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
31405 " shrl $2, %0\n"
31406 " andl $3, %%eax\n"
31407 " cld\n"
31408- "6: rep; movsl\n"
31409+ "6: rep; "__copyuser_seg" movsl\n"
31410 " movl %%eax,%0\n"
31411- "7: rep; movsb\n"
31412+ "7: rep; "__copyuser_seg" movsb\n"
31413 "8:\n"
31414 ".section .fixup,\"ax\"\n"
31415 "9: lea 0(%%eax,%0,4),%0\n"
31416@@ -399,41 +507,41 @@ static unsigned long __copy_user_intel_nocache(void *to,
31417
31418 __asm__ __volatile__(
31419 " .align 2,0x90\n"
31420- "0: movl 32(%4), %%eax\n"
31421+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31422 " cmpl $67, %0\n"
31423 " jbe 2f\n"
31424- "1: movl 64(%4), %%eax\n"
31425+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31426 " .align 2,0x90\n"
31427- "2: movl 0(%4), %%eax\n"
31428- "21: movl 4(%4), %%edx\n"
31429+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31430+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31431 " movnti %%eax, 0(%3)\n"
31432 " movnti %%edx, 4(%3)\n"
31433- "3: movl 8(%4), %%eax\n"
31434- "31: movl 12(%4),%%edx\n"
31435+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31436+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31437 " movnti %%eax, 8(%3)\n"
31438 " movnti %%edx, 12(%3)\n"
31439- "4: movl 16(%4), %%eax\n"
31440- "41: movl 20(%4), %%edx\n"
31441+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31442+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31443 " movnti %%eax, 16(%3)\n"
31444 " movnti %%edx, 20(%3)\n"
31445- "10: movl 24(%4), %%eax\n"
31446- "51: movl 28(%4), %%edx\n"
31447+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31448+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31449 " movnti %%eax, 24(%3)\n"
31450 " movnti %%edx, 28(%3)\n"
31451- "11: movl 32(%4), %%eax\n"
31452- "61: movl 36(%4), %%edx\n"
31453+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31454+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31455 " movnti %%eax, 32(%3)\n"
31456 " movnti %%edx, 36(%3)\n"
31457- "12: movl 40(%4), %%eax\n"
31458- "71: movl 44(%4), %%edx\n"
31459+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31460+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31461 " movnti %%eax, 40(%3)\n"
31462 " movnti %%edx, 44(%3)\n"
31463- "13: movl 48(%4), %%eax\n"
31464- "81: movl 52(%4), %%edx\n"
31465+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31466+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31467 " movnti %%eax, 48(%3)\n"
31468 " movnti %%edx, 52(%3)\n"
31469- "14: movl 56(%4), %%eax\n"
31470- "91: movl 60(%4), %%edx\n"
31471+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31472+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31473 " movnti %%eax, 56(%3)\n"
31474 " movnti %%edx, 60(%3)\n"
31475 " addl $-64, %0\n"
31476@@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
31477 " shrl $2, %0\n"
31478 " andl $3, %%eax\n"
31479 " cld\n"
31480- "6: rep; movsl\n"
31481+ "6: rep; "__copyuser_seg" movsl\n"
31482 " movl %%eax,%0\n"
31483- "7: rep; movsb\n"
31484+ "7: rep; "__copyuser_seg" movsb\n"
31485 "8:\n"
31486 ".section .fixup,\"ax\"\n"
31487 "9: lea 0(%%eax,%0,4),%0\n"
31488@@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
31489 */
31490 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
31491 unsigned long size);
31492-unsigned long __copy_user_intel(void __user *to, const void *from,
31493+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
31494+ unsigned long size);
31495+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
31496 unsigned long size);
31497 unsigned long __copy_user_zeroing_intel_nocache(void *to,
31498 const void __user *from, unsigned long size);
31499 #endif /* CONFIG_X86_INTEL_USERCOPY */
31500
31501 /* Generic arbitrary sized copy. */
31502-#define __copy_user(to, from, size) \
31503+#define __copy_user(to, from, size, prefix, set, restore) \
31504 do { \
31505 int __d0, __d1, __d2; \
31506 __asm__ __volatile__( \
31507+ set \
31508 " cmp $7,%0\n" \
31509 " jbe 1f\n" \
31510 " movl %1,%0\n" \
31511 " negl %0\n" \
31512 " andl $7,%0\n" \
31513 " subl %0,%3\n" \
31514- "4: rep; movsb\n" \
31515+ "4: rep; "prefix"movsb\n" \
31516 " movl %3,%0\n" \
31517 " shrl $2,%0\n" \
31518 " andl $3,%3\n" \
31519 " .align 2,0x90\n" \
31520- "0: rep; movsl\n" \
31521+ "0: rep; "prefix"movsl\n" \
31522 " movl %3,%0\n" \
31523- "1: rep; movsb\n" \
31524+ "1: rep; "prefix"movsb\n" \
31525 "2:\n" \
31526+ restore \
31527 ".section .fixup,\"ax\"\n" \
31528 "5: addl %3,%0\n" \
31529 " jmp 2b\n" \
31530@@ -538,14 +650,14 @@ do { \
31531 " negl %0\n" \
31532 " andl $7,%0\n" \
31533 " subl %0,%3\n" \
31534- "4: rep; movsb\n" \
31535+ "4: rep; "__copyuser_seg"movsb\n" \
31536 " movl %3,%0\n" \
31537 " shrl $2,%0\n" \
31538 " andl $3,%3\n" \
31539 " .align 2,0x90\n" \
31540- "0: rep; movsl\n" \
31541+ "0: rep; "__copyuser_seg"movsl\n" \
31542 " movl %3,%0\n" \
31543- "1: rep; movsb\n" \
31544+ "1: rep; "__copyuser_seg"movsb\n" \
31545 "2:\n" \
31546 ".section .fixup,\"ax\"\n" \
31547 "5: addl %3,%0\n" \
31548@@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
31549 {
31550 stac();
31551 if (movsl_is_ok(to, from, n))
31552- __copy_user(to, from, n);
31553+ __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
31554 else
31555- n = __copy_user_intel(to, from, n);
31556+ n = __generic_copy_to_user_intel(to, from, n);
31557 clac();
31558 return n;
31559 }
31560@@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
31561 {
31562 stac();
31563 if (movsl_is_ok(to, from, n))
31564- __copy_user(to, from, n);
31565+ __copy_user(to, from, n, __copyuser_seg, "", "");
31566 else
31567- n = __copy_user_intel((void __user *)to,
31568- (const void *)from, n);
31569+ n = __generic_copy_from_user_intel(to, from, n);
31570 clac();
31571 return n;
31572 }
31573@@ -632,58 +743,38 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
31574 if (n > 64 && cpu_has_xmm2)
31575 n = __copy_user_intel_nocache(to, from, n);
31576 else
31577- __copy_user(to, from, n);
31578+ __copy_user(to, from, n, __copyuser_seg, "", "");
31579 #else
31580- __copy_user(to, from, n);
31581+ __copy_user(to, from, n, __copyuser_seg, "", "");
31582 #endif
31583 clac();
31584 return n;
31585 }
31586 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
31587
31588-/**
31589- * copy_to_user: - Copy a block of data into user space.
31590- * @to: Destination address, in user space.
31591- * @from: Source address, in kernel space.
31592- * @n: Number of bytes to copy.
31593- *
31594- * Context: User context only. This function may sleep.
31595- *
31596- * Copy data from kernel space to user space.
31597- *
31598- * Returns number of bytes that could not be copied.
31599- * On success, this will be zero.
31600- */
31601-unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
31602+#ifdef CONFIG_PAX_MEMORY_UDEREF
31603+void __set_fs(mm_segment_t x)
31604 {
31605- if (access_ok(VERIFY_WRITE, to, n))
31606- n = __copy_to_user(to, from, n);
31607- return n;
31608+ switch (x.seg) {
31609+ case 0:
31610+ loadsegment(gs, 0);
31611+ break;
31612+ case TASK_SIZE_MAX:
31613+ loadsegment(gs, __USER_DS);
31614+ break;
31615+ case -1UL:
31616+ loadsegment(gs, __KERNEL_DS);
31617+ break;
31618+ default:
31619+ BUG();
31620+ }
31621 }
31622-EXPORT_SYMBOL(_copy_to_user);
31623+EXPORT_SYMBOL(__set_fs);
31624
31625-/**
31626- * copy_from_user: - Copy a block of data from user space.
31627- * @to: Destination address, in kernel space.
31628- * @from: Source address, in user space.
31629- * @n: Number of bytes to copy.
31630- *
31631- * Context: User context only. This function may sleep.
31632- *
31633- * Copy data from user space to kernel space.
31634- *
31635- * Returns number of bytes that could not be copied.
31636- * On success, this will be zero.
31637- *
31638- * If some data could not be copied, this function will pad the copied
31639- * data to the requested size using zero bytes.
31640- */
31641-unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
31642+void set_fs(mm_segment_t x)
31643 {
31644- if (access_ok(VERIFY_READ, from, n))
31645- n = __copy_from_user(to, from, n);
31646- else
31647- memset(to, 0, n);
31648- return n;
31649+ current_thread_info()->addr_limit = x;
31650+ __set_fs(x);
31651 }
31652-EXPORT_SYMBOL(_copy_from_user);
31653+EXPORT_SYMBOL(set_fs);
31654+#endif
31655diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
31656index 0a42327..7a82465 100644
31657--- a/arch/x86/lib/usercopy_64.c
31658+++ b/arch/x86/lib/usercopy_64.c
31659@@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31660 might_fault();
31661 /* no memory constraint because it doesn't change any memory gcc knows
31662 about */
31663+ pax_open_userland();
31664 stac();
31665 asm volatile(
31666 " testq %[size8],%[size8]\n"
31667@@ -39,9 +40,10 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31668 _ASM_EXTABLE(0b,3b)
31669 _ASM_EXTABLE(1b,2b)
31670 : [size8] "=&c"(size), [dst] "=&D" (__d0)
31671- : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
31672+ : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
31673 [zero] "r" (0UL), [eight] "r" (8UL));
31674 clac();
31675+ pax_close_userland();
31676 return size;
31677 }
31678 EXPORT_SYMBOL(__clear_user);
31679@@ -54,12 +56,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
31680 }
31681 EXPORT_SYMBOL(clear_user);
31682
31683-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
31684+unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
31685 {
31686- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) {
31687- return copy_user_generic((__force void *)to, (__force void *)from, len);
31688- }
31689- return len;
31690+ if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
31691+ return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
31692+ return len;
31693 }
31694 EXPORT_SYMBOL(copy_in_user);
31695
31696@@ -69,8 +70,10 @@ EXPORT_SYMBOL(copy_in_user);
31697 * it is not necessary to optimize tail handling.
31698 */
31699 __visible unsigned long
31700-copy_user_handle_tail(char *to, char *from, unsigned len)
31701+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len)
31702 {
31703+ clac();
31704+ pax_close_userland();
31705 for (; len; --len, to++) {
31706 char c;
31707
31708@@ -79,10 +82,9 @@ copy_user_handle_tail(char *to, char *from, unsigned len)
31709 if (__put_user_nocheck(c, to, sizeof(char)))
31710 break;
31711 }
31712- clac();
31713
31714 /* If the destination is a kernel buffer, we always clear the end */
31715- if (!__addr_ok(to))
31716+ if (!__addr_ok(to) && (unsigned long)to >= TASK_SIZE_MAX + pax_user_shadow_base)
31717 memset(to, 0, len);
31718 return len;
31719 }
31720diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
31721index c4cc740..60a7362 100644
31722--- a/arch/x86/mm/Makefile
31723+++ b/arch/x86/mm/Makefile
31724@@ -35,3 +35,7 @@ obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
31725 obj-$(CONFIG_MEMTEST) += memtest.o
31726
31727 obj-$(CONFIG_X86_INTEL_MPX) += mpx.o
31728+
31729+quote:="
31730+obj-$(CONFIG_X86_64) += uderef_64.o
31731+CFLAGS_uderef_64.o := $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
31732diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
31733index 903ec1e..c4166b2 100644
31734--- a/arch/x86/mm/extable.c
31735+++ b/arch/x86/mm/extable.c
31736@@ -6,12 +6,24 @@
31737 static inline unsigned long
31738 ex_insn_addr(const struct exception_table_entry *x)
31739 {
31740- return (unsigned long)&x->insn + x->insn;
31741+ unsigned long reloc = 0;
31742+
31743+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31744+ reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31745+#endif
31746+
31747+ return (unsigned long)&x->insn + x->insn + reloc;
31748 }
31749 static inline unsigned long
31750 ex_fixup_addr(const struct exception_table_entry *x)
31751 {
31752- return (unsigned long)&x->fixup + x->fixup;
31753+ unsigned long reloc = 0;
31754+
31755+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31756+ reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31757+#endif
31758+
31759+ return (unsigned long)&x->fixup + x->fixup + reloc;
31760 }
31761
31762 int fixup_exception(struct pt_regs *regs)
31763@@ -20,7 +32,7 @@ int fixup_exception(struct pt_regs *regs)
31764 unsigned long new_ip;
31765
31766 #ifdef CONFIG_PNPBIOS
31767- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
31768+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
31769 extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
31770 extern u32 pnp_bios_is_utter_crap;
31771 pnp_bios_is_utter_crap = 1;
31772@@ -145,6 +157,13 @@ void sort_extable(struct exception_table_entry *start,
31773 i += 4;
31774 p->fixup -= i;
31775 i += 4;
31776+
31777+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31778+ BUILD_BUG_ON(!IS_ENABLED(CONFIG_BUILDTIME_EXTABLE_SORT));
31779+ p->insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31780+ p->fixup -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31781+#endif
31782+
31783 }
31784 }
31785
31786diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
31787index ede025f..380466b 100644
31788--- a/arch/x86/mm/fault.c
31789+++ b/arch/x86/mm/fault.c
31790@@ -13,12 +13,19 @@
31791 #include <linux/hugetlb.h> /* hstate_index_to_shift */
31792 #include <linux/prefetch.h> /* prefetchw */
31793 #include <linux/context_tracking.h> /* exception_enter(), ... */
31794+#include <linux/unistd.h>
31795+#include <linux/compiler.h>
31796
31797 #include <asm/traps.h> /* dotraplinkage, ... */
31798 #include <asm/pgalloc.h> /* pgd_*(), ... */
31799 #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */
31800 #include <asm/fixmap.h> /* VSYSCALL_ADDR */
31801 #include <asm/vsyscall.h> /* emulate_vsyscall */
31802+#include <asm/tlbflush.h>
31803+
31804+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31805+#include <asm/stacktrace.h>
31806+#endif
31807
31808 #define CREATE_TRACE_POINTS
31809 #include <asm/trace/exceptions.h>
31810@@ -59,7 +66,7 @@ static nokprobe_inline int kprobes_fault(struct pt_regs *regs)
31811 int ret = 0;
31812
31813 /* kprobe_running() needs smp_processor_id() */
31814- if (kprobes_built_in() && !user_mode_vm(regs)) {
31815+ if (kprobes_built_in() && !user_mode(regs)) {
31816 preempt_disable();
31817 if (kprobe_running() && kprobe_fault_handler(regs, 14))
31818 ret = 1;
31819@@ -120,7 +127,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
31820 return !instr_lo || (instr_lo>>1) == 1;
31821 case 0x00:
31822 /* Prefetch instruction is 0x0F0D or 0x0F18 */
31823- if (probe_kernel_address(instr, opcode))
31824+ if (user_mode(regs)) {
31825+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31826+ return 0;
31827+ } else if (probe_kernel_address(instr, opcode))
31828 return 0;
31829
31830 *prefetch = (instr_lo == 0xF) &&
31831@@ -154,7 +164,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
31832 while (instr < max_instr) {
31833 unsigned char opcode;
31834
31835- if (probe_kernel_address(instr, opcode))
31836+ if (user_mode(regs)) {
31837+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31838+ break;
31839+ } else if (probe_kernel_address(instr, opcode))
31840 break;
31841
31842 instr++;
31843@@ -185,6 +198,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
31844 force_sig_info(si_signo, &info, tsk);
31845 }
31846
31847+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
31848+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
31849+#endif
31850+
31851+#ifdef CONFIG_PAX_EMUTRAMP
31852+static int pax_handle_fetch_fault(struct pt_regs *regs);
31853+#endif
31854+
31855+#ifdef CONFIG_PAX_PAGEEXEC
31856+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
31857+{
31858+ pgd_t *pgd;
31859+ pud_t *pud;
31860+ pmd_t *pmd;
31861+
31862+ pgd = pgd_offset(mm, address);
31863+ if (!pgd_present(*pgd))
31864+ return NULL;
31865+ pud = pud_offset(pgd, address);
31866+ if (!pud_present(*pud))
31867+ return NULL;
31868+ pmd = pmd_offset(pud, address);
31869+ if (!pmd_present(*pmd))
31870+ return NULL;
31871+ return pmd;
31872+}
31873+#endif
31874+
31875 DEFINE_SPINLOCK(pgd_lock);
31876 LIST_HEAD(pgd_list);
31877
31878@@ -235,10 +276,27 @@ void vmalloc_sync_all(void)
31879 for (address = VMALLOC_START & PMD_MASK;
31880 address >= TASK_SIZE && address < FIXADDR_TOP;
31881 address += PMD_SIZE) {
31882+
31883+#ifdef CONFIG_PAX_PER_CPU_PGD
31884+ unsigned long cpu;
31885+#else
31886 struct page *page;
31887+#endif
31888
31889 spin_lock(&pgd_lock);
31890+
31891+#ifdef CONFIG_PAX_PER_CPU_PGD
31892+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
31893+ pgd_t *pgd = get_cpu_pgd(cpu, user);
31894+ pmd_t *ret;
31895+
31896+ ret = vmalloc_sync_one(pgd, address);
31897+ if (!ret)
31898+ break;
31899+ pgd = get_cpu_pgd(cpu, kernel);
31900+#else
31901 list_for_each_entry(page, &pgd_list, lru) {
31902+ pgd_t *pgd;
31903 spinlock_t *pgt_lock;
31904 pmd_t *ret;
31905
31906@@ -246,8 +304,14 @@ void vmalloc_sync_all(void)
31907 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
31908
31909 spin_lock(pgt_lock);
31910- ret = vmalloc_sync_one(page_address(page), address);
31911+ pgd = page_address(page);
31912+#endif
31913+
31914+ ret = vmalloc_sync_one(pgd, address);
31915+
31916+#ifndef CONFIG_PAX_PER_CPU_PGD
31917 spin_unlock(pgt_lock);
31918+#endif
31919
31920 if (!ret)
31921 break;
31922@@ -281,6 +345,12 @@ static noinline int vmalloc_fault(unsigned long address)
31923 * an interrupt in the middle of a task switch..
31924 */
31925 pgd_paddr = read_cr3();
31926+
31927+#ifdef CONFIG_PAX_PER_CPU_PGD
31928+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (pgd_paddr & __PHYSICAL_MASK));
31929+ vmalloc_sync_one(__va(pgd_paddr + PAGE_SIZE), address);
31930+#endif
31931+
31932 pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
31933 if (!pmd_k)
31934 return -1;
31935@@ -377,11 +447,25 @@ static noinline int vmalloc_fault(unsigned long address)
31936 * happen within a race in page table update. In the later
31937 * case just flush:
31938 */
31939- pgd = pgd_offset(current->active_mm, address);
31940+
31941 pgd_ref = pgd_offset_k(address);
31942 if (pgd_none(*pgd_ref))
31943 return -1;
31944
31945+#ifdef CONFIG_PAX_PER_CPU_PGD
31946+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (read_cr3() & __PHYSICAL_MASK));
31947+ pgd = pgd_offset_cpu(smp_processor_id(), user, address);
31948+ if (pgd_none(*pgd)) {
31949+ set_pgd(pgd, *pgd_ref);
31950+ arch_flush_lazy_mmu_mode();
31951+ } else {
31952+ BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
31953+ }
31954+ pgd = pgd_offset_cpu(smp_processor_id(), kernel, address);
31955+#else
31956+ pgd = pgd_offset(current->active_mm, address);
31957+#endif
31958+
31959 if (pgd_none(*pgd)) {
31960 set_pgd(pgd, *pgd_ref);
31961 arch_flush_lazy_mmu_mode();
31962@@ -548,7 +632,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
31963 static int is_errata100(struct pt_regs *regs, unsigned long address)
31964 {
31965 #ifdef CONFIG_X86_64
31966- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
31967+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
31968 return 1;
31969 #endif
31970 return 0;
31971@@ -575,9 +659,9 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
31972 }
31973
31974 static const char nx_warning[] = KERN_CRIT
31975-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
31976+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
31977 static const char smep_warning[] = KERN_CRIT
31978-"unable to execute userspace code (SMEP?) (uid: %d)\n";
31979+"unable to execute userspace code (SMEP?) (uid: %d, task: %s, pid: %d)\n";
31980
31981 static void
31982 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31983@@ -586,7 +670,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31984 if (!oops_may_print())
31985 return;
31986
31987- if (error_code & PF_INSTR) {
31988+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
31989 unsigned int level;
31990 pgd_t *pgd;
31991 pte_t *pte;
31992@@ -597,13 +681,25 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31993 pte = lookup_address_in_pgd(pgd, address, &level);
31994
31995 if (pte && pte_present(*pte) && !pte_exec(*pte))
31996- printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
31997+ printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
31998 if (pte && pte_present(*pte) && pte_exec(*pte) &&
31999 (pgd_flags(*pgd) & _PAGE_USER) &&
32000 (__read_cr4() & X86_CR4_SMEP))
32001- printk(smep_warning, from_kuid(&init_user_ns, current_uid()));
32002+ printk(smep_warning, from_kuid(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
32003 }
32004
32005+#ifdef CONFIG_PAX_KERNEXEC
32006+ if (init_mm.start_code <= address && address < init_mm.end_code) {
32007+ if (current->signal->curr_ip)
32008+ printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
32009+ &current->signal->curr_ip, current->comm, task_pid_nr(current),
32010+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
32011+ else
32012+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
32013+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
32014+ }
32015+#endif
32016+
32017 printk(KERN_ALERT "BUG: unable to handle kernel ");
32018 if (address < PAGE_SIZE)
32019 printk(KERN_CONT "NULL pointer dereference");
32020@@ -782,6 +878,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
32021 return;
32022 }
32023 #endif
32024+
32025+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32026+ if (pax_is_fetch_fault(regs, error_code, address)) {
32027+
32028+#ifdef CONFIG_PAX_EMUTRAMP
32029+ switch (pax_handle_fetch_fault(regs)) {
32030+ case 2:
32031+ return;
32032+ }
32033+#endif
32034+
32035+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
32036+ do_group_exit(SIGKILL);
32037+ }
32038+#endif
32039+
32040 /* Kernel addresses are always protection faults: */
32041 if (address >= TASK_SIZE)
32042 error_code |= PF_PROT;
32043@@ -864,7 +976,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
32044 if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
32045 printk(KERN_ERR
32046 "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
32047- tsk->comm, tsk->pid, address);
32048+ tsk->comm, task_pid_nr(tsk), address);
32049 code = BUS_MCEERR_AR;
32050 }
32051 #endif
32052@@ -916,6 +1028,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
32053 return 1;
32054 }
32055
32056+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
32057+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
32058+{
32059+ pte_t *pte;
32060+ pmd_t *pmd;
32061+ spinlock_t *ptl;
32062+ unsigned char pte_mask;
32063+
32064+ if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
32065+ !(mm->pax_flags & MF_PAX_PAGEEXEC))
32066+ return 0;
32067+
32068+ /* PaX: it's our fault, let's handle it if we can */
32069+
32070+ /* PaX: take a look at read faults before acquiring any locks */
32071+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
32072+ /* instruction fetch attempt from a protected page in user mode */
32073+ up_read(&mm->mmap_sem);
32074+
32075+#ifdef CONFIG_PAX_EMUTRAMP
32076+ switch (pax_handle_fetch_fault(regs)) {
32077+ case 2:
32078+ return 1;
32079+ }
32080+#endif
32081+
32082+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
32083+ do_group_exit(SIGKILL);
32084+ }
32085+
32086+ pmd = pax_get_pmd(mm, address);
32087+ if (unlikely(!pmd))
32088+ return 0;
32089+
32090+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
32091+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
32092+ pte_unmap_unlock(pte, ptl);
32093+ return 0;
32094+ }
32095+
32096+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
32097+ /* write attempt to a protected page in user mode */
32098+ pte_unmap_unlock(pte, ptl);
32099+ return 0;
32100+ }
32101+
32102+#ifdef CONFIG_SMP
32103+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
32104+#else
32105+ if (likely(address > get_limit(regs->cs)))
32106+#endif
32107+ {
32108+ set_pte(pte, pte_mkread(*pte));
32109+ __flush_tlb_one(address);
32110+ pte_unmap_unlock(pte, ptl);
32111+ up_read(&mm->mmap_sem);
32112+ return 1;
32113+ }
32114+
32115+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
32116+
32117+ /*
32118+ * PaX: fill DTLB with user rights and retry
32119+ */
32120+ __asm__ __volatile__ (
32121+ "orb %2,(%1)\n"
32122+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
32123+/*
32124+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
32125+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
32126+ * page fault when examined during a TLB load attempt. this is true not only
32127+ * for PTEs holding a non-present entry but also present entries that will
32128+ * raise a page fault (such as those set up by PaX, or the copy-on-write
32129+ * mechanism). in effect it means that we do *not* need to flush the TLBs
32130+ * for our target pages since their PTEs are simply not in the TLBs at all.
32131+
32132+ * the best thing in omitting it is that we gain around 15-20% speed in the
32133+ * fast path of the page fault handler and can get rid of tracing since we
32134+ * can no longer flush unintended entries.
32135+ */
32136+ "invlpg (%0)\n"
32137+#endif
32138+ __copyuser_seg"testb $0,(%0)\n"
32139+ "xorb %3,(%1)\n"
32140+ :
32141+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
32142+ : "memory", "cc");
32143+ pte_unmap_unlock(pte, ptl);
32144+ up_read(&mm->mmap_sem);
32145+ return 1;
32146+}
32147+#endif
32148+
32149 /*
32150 * Handle a spurious fault caused by a stale TLB entry.
32151 *
32152@@ -1001,6 +1206,9 @@ int show_unhandled_signals = 1;
32153 static inline int
32154 access_error(unsigned long error_code, struct vm_area_struct *vma)
32155 {
32156+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
32157+ return 1;
32158+
32159 if (error_code & PF_WRITE) {
32160 /* write, present and write, not present: */
32161 if (unlikely(!(vma->vm_flags & VM_WRITE)))
32162@@ -1035,7 +1243,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
32163 if (error_code & PF_USER)
32164 return false;
32165
32166- if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
32167+ if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
32168 return false;
32169
32170 return true;
32171@@ -1063,6 +1271,22 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
32172 tsk = current;
32173 mm = tsk->mm;
32174
32175+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
32176+ if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
32177+ if (!search_exception_tables(regs->ip)) {
32178+ printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
32179+ bad_area_nosemaphore(regs, error_code, address);
32180+ return;
32181+ }
32182+ if (address < pax_user_shadow_base) {
32183+ printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
32184+ printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip);
32185+ show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR);
32186+ } else
32187+ address -= pax_user_shadow_base;
32188+ }
32189+#endif
32190+
32191 /*
32192 * Detect and handle instructions that would cause a page fault for
32193 * both a tracked kernel page and a userspace page.
32194@@ -1140,7 +1364,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
32195 * User-mode registers count as a user access even for any
32196 * potential system fault or CPU buglet:
32197 */
32198- if (user_mode_vm(regs)) {
32199+ if (user_mode(regs)) {
32200 local_irq_enable();
32201 error_code |= PF_USER;
32202 flags |= FAULT_FLAG_USER;
32203@@ -1187,6 +1411,11 @@ retry:
32204 might_sleep();
32205 }
32206
32207+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
32208+ if (pax_handle_pageexec_fault(regs, mm, address, error_code))
32209+ return;
32210+#endif
32211+
32212 vma = find_vma(mm, address);
32213 if (unlikely(!vma)) {
32214 bad_area(regs, error_code, address);
32215@@ -1198,18 +1427,24 @@ retry:
32216 bad_area(regs, error_code, address);
32217 return;
32218 }
32219- if (error_code & PF_USER) {
32220- /*
32221- * Accessing the stack below %sp is always a bug.
32222- * The large cushion allows instructions like enter
32223- * and pusha to work. ("enter $65535, $31" pushes
32224- * 32 pointers and then decrements %sp by 65535.)
32225- */
32226- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
32227- bad_area(regs, error_code, address);
32228- return;
32229- }
32230+ /*
32231+ * Accessing the stack below %sp is always a bug.
32232+ * The large cushion allows instructions like enter
32233+ * and pusha to work. ("enter $65535, $31" pushes
32234+ * 32 pointers and then decrements %sp by 65535.)
32235+ */
32236+ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
32237+ bad_area(regs, error_code, address);
32238+ return;
32239 }
32240+
32241+#ifdef CONFIG_PAX_SEGMEXEC
32242+ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
32243+ bad_area(regs, error_code, address);
32244+ return;
32245+ }
32246+#endif
32247+
32248 if (unlikely(expand_stack(vma, address))) {
32249 bad_area(regs, error_code, address);
32250 return;
32251@@ -1329,3 +1564,292 @@ trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
32252 }
32253 NOKPROBE_SYMBOL(trace_do_page_fault);
32254 #endif /* CONFIG_TRACING */
32255+
32256+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32257+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
32258+{
32259+ struct mm_struct *mm = current->mm;
32260+ unsigned long ip = regs->ip;
32261+
32262+ if (v8086_mode(regs))
32263+ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
32264+
32265+#ifdef CONFIG_PAX_PAGEEXEC
32266+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
32267+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
32268+ return true;
32269+ if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
32270+ return true;
32271+ return false;
32272+ }
32273+#endif
32274+
32275+#ifdef CONFIG_PAX_SEGMEXEC
32276+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
32277+ if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
32278+ return true;
32279+ return false;
32280+ }
32281+#endif
32282+
32283+ return false;
32284+}
32285+#endif
32286+
32287+#ifdef CONFIG_PAX_EMUTRAMP
32288+static int pax_handle_fetch_fault_32(struct pt_regs *regs)
32289+{
32290+ int err;
32291+
32292+ do { /* PaX: libffi trampoline emulation */
32293+ unsigned char mov, jmp;
32294+ unsigned int addr1, addr2;
32295+
32296+#ifdef CONFIG_X86_64
32297+ if ((regs->ip + 9) >> 32)
32298+ break;
32299+#endif
32300+
32301+ err = get_user(mov, (unsigned char __user *)regs->ip);
32302+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32303+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
32304+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32305+
32306+ if (err)
32307+ break;
32308+
32309+ if (mov == 0xB8 && jmp == 0xE9) {
32310+ regs->ax = addr1;
32311+ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
32312+ return 2;
32313+ }
32314+ } while (0);
32315+
32316+ do { /* PaX: gcc trampoline emulation #1 */
32317+ unsigned char mov1, mov2;
32318+ unsigned short jmp;
32319+ unsigned int addr1, addr2;
32320+
32321+#ifdef CONFIG_X86_64
32322+ if ((regs->ip + 11) >> 32)
32323+ break;
32324+#endif
32325+
32326+ err = get_user(mov1, (unsigned char __user *)regs->ip);
32327+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32328+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
32329+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32330+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
32331+
32332+ if (err)
32333+ break;
32334+
32335+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
32336+ regs->cx = addr1;
32337+ regs->ax = addr2;
32338+ regs->ip = addr2;
32339+ return 2;
32340+ }
32341+ } while (0);
32342+
32343+ do { /* PaX: gcc trampoline emulation #2 */
32344+ unsigned char mov, jmp;
32345+ unsigned int addr1, addr2;
32346+
32347+#ifdef CONFIG_X86_64
32348+ if ((regs->ip + 9) >> 32)
32349+ break;
32350+#endif
32351+
32352+ err = get_user(mov, (unsigned char __user *)regs->ip);
32353+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32354+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
32355+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32356+
32357+ if (err)
32358+ break;
32359+
32360+ if (mov == 0xB9 && jmp == 0xE9) {
32361+ regs->cx = addr1;
32362+ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
32363+ return 2;
32364+ }
32365+ } while (0);
32366+
32367+ return 1; /* PaX in action */
32368+}
32369+
32370+#ifdef CONFIG_X86_64
32371+static int pax_handle_fetch_fault_64(struct pt_regs *regs)
32372+{
32373+ int err;
32374+
32375+ do { /* PaX: libffi trampoline emulation */
32376+ unsigned short mov1, mov2, jmp1;
32377+ unsigned char stcclc, jmp2;
32378+ unsigned long addr1, addr2;
32379+
32380+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32381+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
32382+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
32383+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
32384+ err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
32385+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
32386+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
32387+
32388+ if (err)
32389+ break;
32390+
32391+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32392+ regs->r11 = addr1;
32393+ regs->r10 = addr2;
32394+ if (stcclc == 0xF8)
32395+ regs->flags &= ~X86_EFLAGS_CF;
32396+ else
32397+ regs->flags |= X86_EFLAGS_CF;
32398+ regs->ip = addr1;
32399+ return 2;
32400+ }
32401+ } while (0);
32402+
32403+ do { /* PaX: gcc trampoline emulation #1 */
32404+ unsigned short mov1, mov2, jmp1;
32405+ unsigned char jmp2;
32406+ unsigned int addr1;
32407+ unsigned long addr2;
32408+
32409+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32410+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
32411+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
32412+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
32413+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
32414+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
32415+
32416+ if (err)
32417+ break;
32418+
32419+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32420+ regs->r11 = addr1;
32421+ regs->r10 = addr2;
32422+ regs->ip = addr1;
32423+ return 2;
32424+ }
32425+ } while (0);
32426+
32427+ do { /* PaX: gcc trampoline emulation #2 */
32428+ unsigned short mov1, mov2, jmp1;
32429+ unsigned char jmp2;
32430+ unsigned long addr1, addr2;
32431+
32432+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32433+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
32434+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
32435+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
32436+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
32437+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
32438+
32439+ if (err)
32440+ break;
32441+
32442+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32443+ regs->r11 = addr1;
32444+ regs->r10 = addr2;
32445+ regs->ip = addr1;
32446+ return 2;
32447+ }
32448+ } while (0);
32449+
32450+ return 1; /* PaX in action */
32451+}
32452+#endif
32453+
32454+/*
32455+ * PaX: decide what to do with offenders (regs->ip = fault address)
32456+ *
32457+ * returns 1 when task should be killed
32458+ * 2 when gcc trampoline was detected
32459+ */
32460+static int pax_handle_fetch_fault(struct pt_regs *regs)
32461+{
32462+ if (v8086_mode(regs))
32463+ return 1;
32464+
32465+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
32466+ return 1;
32467+
32468+#ifdef CONFIG_X86_32
32469+ return pax_handle_fetch_fault_32(regs);
32470+#else
32471+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
32472+ return pax_handle_fetch_fault_32(regs);
32473+ else
32474+ return pax_handle_fetch_fault_64(regs);
32475+#endif
32476+}
32477+#endif
32478+
32479+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32480+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
32481+{
32482+ long i;
32483+
32484+ printk(KERN_ERR "PAX: bytes at PC: ");
32485+ for (i = 0; i < 20; i++) {
32486+ unsigned char c;
32487+ if (get_user(c, (unsigned char __force_user *)pc+i))
32488+ printk(KERN_CONT "?? ");
32489+ else
32490+ printk(KERN_CONT "%02x ", c);
32491+ }
32492+ printk("\n");
32493+
32494+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
32495+ for (i = -1; i < 80 / (long)sizeof(long); i++) {
32496+ unsigned long c;
32497+ if (get_user(c, (unsigned long __force_user *)sp+i)) {
32498+#ifdef CONFIG_X86_32
32499+ printk(KERN_CONT "???????? ");
32500+#else
32501+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
32502+ printk(KERN_CONT "???????? ???????? ");
32503+ else
32504+ printk(KERN_CONT "???????????????? ");
32505+#endif
32506+ } else {
32507+#ifdef CONFIG_X86_64
32508+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
32509+ printk(KERN_CONT "%08x ", (unsigned int)c);
32510+ printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
32511+ } else
32512+#endif
32513+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
32514+ }
32515+ }
32516+ printk("\n");
32517+}
32518+#endif
32519+
32520+/**
32521+ * probe_kernel_write(): safely attempt to write to a location
32522+ * @dst: address to write to
32523+ * @src: pointer to the data that shall be written
32524+ * @size: size of the data chunk
32525+ *
32526+ * Safely write to address @dst from the buffer at @src. If a kernel fault
32527+ * happens, handle that and return -EFAULT.
32528+ */
32529+long notrace probe_kernel_write(void *dst, const void *src, size_t size)
32530+{
32531+ long ret;
32532+ mm_segment_t old_fs = get_fs();
32533+
32534+ set_fs(KERNEL_DS);
32535+ pagefault_disable();
32536+ pax_open_kernel();
32537+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
32538+ pax_close_kernel();
32539+ pagefault_enable();
32540+ set_fs(old_fs);
32541+
32542+ return ret ? -EFAULT : 0;
32543+}
32544diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
32545index 81bf3d2..7ef25c2 100644
32546--- a/arch/x86/mm/gup.c
32547+++ b/arch/x86/mm/gup.c
32548@@ -268,7 +268,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
32549 addr = start;
32550 len = (unsigned long) nr_pages << PAGE_SHIFT;
32551 end = start + len;
32552- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
32553+ if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32554 (void __user *)start, len)))
32555 return 0;
32556
32557@@ -344,6 +344,10 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
32558 goto slow_irqon;
32559 #endif
32560
32561+ if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32562+ (void __user *)start, len)))
32563+ return 0;
32564+
32565 /*
32566 * XXX: batch / limit 'nr', to avoid large irq off latency
32567 * needs some instrumenting to determine the common sizes used by
32568diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
32569index 4500142..53a363c 100644
32570--- a/arch/x86/mm/highmem_32.c
32571+++ b/arch/x86/mm/highmem_32.c
32572@@ -45,7 +45,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
32573 idx = type + KM_TYPE_NR*smp_processor_id();
32574 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
32575 BUG_ON(!pte_none(*(kmap_pte-idx)));
32576+
32577+ pax_open_kernel();
32578 set_pte(kmap_pte-idx, mk_pte(page, prot));
32579+ pax_close_kernel();
32580+
32581 arch_flush_lazy_mmu_mode();
32582
32583 return (void *)vaddr;
32584diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
32585index 42982b2..7168fc3 100644
32586--- a/arch/x86/mm/hugetlbpage.c
32587+++ b/arch/x86/mm/hugetlbpage.c
32588@@ -74,23 +74,24 @@ int pud_huge(pud_t pud)
32589 #ifdef CONFIG_HUGETLB_PAGE
32590 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
32591 unsigned long addr, unsigned long len,
32592- unsigned long pgoff, unsigned long flags)
32593+ unsigned long pgoff, unsigned long flags, unsigned long offset)
32594 {
32595 struct hstate *h = hstate_file(file);
32596 struct vm_unmapped_area_info info;
32597-
32598+
32599 info.flags = 0;
32600 info.length = len;
32601 info.low_limit = current->mm->mmap_legacy_base;
32602 info.high_limit = TASK_SIZE;
32603 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32604 info.align_offset = 0;
32605+ info.threadstack_offset = offset;
32606 return vm_unmapped_area(&info);
32607 }
32608
32609 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32610 unsigned long addr0, unsigned long len,
32611- unsigned long pgoff, unsigned long flags)
32612+ unsigned long pgoff, unsigned long flags, unsigned long offset)
32613 {
32614 struct hstate *h = hstate_file(file);
32615 struct vm_unmapped_area_info info;
32616@@ -102,6 +103,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32617 info.high_limit = current->mm->mmap_base;
32618 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32619 info.align_offset = 0;
32620+ info.threadstack_offset = offset;
32621 addr = vm_unmapped_area(&info);
32622
32623 /*
32624@@ -114,6 +116,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32625 VM_BUG_ON(addr != -ENOMEM);
32626 info.flags = 0;
32627 info.low_limit = TASK_UNMAPPED_BASE;
32628+
32629+#ifdef CONFIG_PAX_RANDMMAP
32630+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
32631+ info.low_limit += current->mm->delta_mmap;
32632+#endif
32633+
32634 info.high_limit = TASK_SIZE;
32635 addr = vm_unmapped_area(&info);
32636 }
32637@@ -128,10 +136,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32638 struct hstate *h = hstate_file(file);
32639 struct mm_struct *mm = current->mm;
32640 struct vm_area_struct *vma;
32641+ unsigned long pax_task_size = TASK_SIZE;
32642+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
32643
32644 if (len & ~huge_page_mask(h))
32645 return -EINVAL;
32646- if (len > TASK_SIZE)
32647+
32648+#ifdef CONFIG_PAX_SEGMEXEC
32649+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
32650+ pax_task_size = SEGMEXEC_TASK_SIZE;
32651+#endif
32652+
32653+ pax_task_size -= PAGE_SIZE;
32654+
32655+ if (len > pax_task_size)
32656 return -ENOMEM;
32657
32658 if (flags & MAP_FIXED) {
32659@@ -140,19 +158,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32660 return addr;
32661 }
32662
32663+#ifdef CONFIG_PAX_RANDMMAP
32664+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
32665+#endif
32666+
32667 if (addr) {
32668 addr = ALIGN(addr, huge_page_size(h));
32669 vma = find_vma(mm, addr);
32670- if (TASK_SIZE - len >= addr &&
32671- (!vma || addr + len <= vma->vm_start))
32672+ if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
32673 return addr;
32674 }
32675 if (mm->get_unmapped_area == arch_get_unmapped_area)
32676 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
32677- pgoff, flags);
32678+ pgoff, flags, offset);
32679 else
32680 return hugetlb_get_unmapped_area_topdown(file, addr, len,
32681- pgoff, flags);
32682+ pgoff, flags, offset);
32683 }
32684 #endif /* CONFIG_HUGETLB_PAGE */
32685
32686diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
32687index a110efc..a31a18f 100644
32688--- a/arch/x86/mm/init.c
32689+++ b/arch/x86/mm/init.c
32690@@ -4,6 +4,7 @@
32691 #include <linux/swap.h>
32692 #include <linux/memblock.h>
32693 #include <linux/bootmem.h> /* for max_low_pfn */
32694+#include <linux/tboot.h>
32695
32696 #include <asm/cacheflush.h>
32697 #include <asm/e820.h>
32698@@ -17,6 +18,8 @@
32699 #include <asm/proto.h>
32700 #include <asm/dma.h> /* for MAX_DMA_PFN */
32701 #include <asm/microcode.h>
32702+#include <asm/desc.h>
32703+#include <asm/bios_ebda.h>
32704
32705 /*
32706 * We need to define the tracepoints somewhere, and tlb.c
32707@@ -620,7 +623,18 @@ void __init init_mem_mapping(void)
32708 early_ioremap_page_table_range_init();
32709 #endif
32710
32711+#ifdef CONFIG_PAX_PER_CPU_PGD
32712+ clone_pgd_range(get_cpu_pgd(0, kernel) + KERNEL_PGD_BOUNDARY,
32713+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32714+ KERNEL_PGD_PTRS);
32715+ clone_pgd_range(get_cpu_pgd(0, user) + KERNEL_PGD_BOUNDARY,
32716+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32717+ KERNEL_PGD_PTRS);
32718+ load_cr3(get_cpu_pgd(0, kernel));
32719+#else
32720 load_cr3(swapper_pg_dir);
32721+#endif
32722+
32723 __flush_tlb_all();
32724
32725 early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
32726@@ -636,10 +650,40 @@ void __init init_mem_mapping(void)
32727 * Access has to be given to non-kernel-ram areas as well, these contain the PCI
32728 * mmio resources as well as potential bios/acpi data regions.
32729 */
32730+
32731+#ifdef CONFIG_GRKERNSEC_KMEM
32732+static unsigned int ebda_start __read_only;
32733+static unsigned int ebda_end __read_only;
32734+#endif
32735+
32736 int devmem_is_allowed(unsigned long pagenr)
32737 {
32738- if (pagenr < 256)
32739+#ifdef CONFIG_GRKERNSEC_KMEM
32740+ /* allow BDA */
32741+ if (!pagenr)
32742 return 1;
32743+ /* allow EBDA */
32744+ if (pagenr >= ebda_start && pagenr < ebda_end)
32745+ return 1;
32746+ /* if tboot is in use, allow access to its hardcoded serial log range */
32747+ if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
32748+ return 1;
32749+#else
32750+ if (!pagenr)
32751+ return 1;
32752+#ifdef CONFIG_VM86
32753+ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
32754+ return 1;
32755+#endif
32756+#endif
32757+
32758+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
32759+ return 1;
32760+#ifdef CONFIG_GRKERNSEC_KMEM
32761+ /* throw out everything else below 1MB */
32762+ if (pagenr <= 256)
32763+ return 0;
32764+#endif
32765 if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
32766 return 0;
32767 if (!page_is_ram(pagenr))
32768@@ -685,8 +729,117 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
32769 #endif
32770 }
32771
32772+#ifdef CONFIG_GRKERNSEC_KMEM
32773+static inline void gr_init_ebda(void)
32774+{
32775+ unsigned int ebda_addr;
32776+ unsigned int ebda_size = 0;
32777+
32778+ ebda_addr = get_bios_ebda();
32779+ if (ebda_addr) {
32780+ ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
32781+ ebda_size <<= 10;
32782+ }
32783+ if (ebda_addr && ebda_size) {
32784+ ebda_start = ebda_addr >> PAGE_SHIFT;
32785+ ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
32786+ } else {
32787+ ebda_start = 0x9f000 >> PAGE_SHIFT;
32788+ ebda_end = 0xa0000 >> PAGE_SHIFT;
32789+ }
32790+}
32791+#else
32792+static inline void gr_init_ebda(void) { }
32793+#endif
32794+
32795 void free_initmem(void)
32796 {
32797+#ifdef CONFIG_PAX_KERNEXEC
32798+#ifdef CONFIG_X86_32
32799+ /* PaX: limit KERNEL_CS to actual size */
32800+ unsigned long addr, limit;
32801+ struct desc_struct d;
32802+ int cpu;
32803+#else
32804+ pgd_t *pgd;
32805+ pud_t *pud;
32806+ pmd_t *pmd;
32807+ unsigned long addr, end;
32808+#endif
32809+#endif
32810+
32811+ gr_init_ebda();
32812+
32813+#ifdef CONFIG_PAX_KERNEXEC
32814+#ifdef CONFIG_X86_32
32815+ limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
32816+ limit = (limit - 1UL) >> PAGE_SHIFT;
32817+
32818+ memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
32819+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
32820+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
32821+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
32822+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
32823+ }
32824+
32825+ /* PaX: make KERNEL_CS read-only */
32826+ addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
32827+ if (!paravirt_enabled())
32828+ set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
32829+/*
32830+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
32831+ pgd = pgd_offset_k(addr);
32832+ pud = pud_offset(pgd, addr);
32833+ pmd = pmd_offset(pud, addr);
32834+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32835+ }
32836+*/
32837+#ifdef CONFIG_X86_PAE
32838+ set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
32839+/*
32840+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
32841+ pgd = pgd_offset_k(addr);
32842+ pud = pud_offset(pgd, addr);
32843+ pmd = pmd_offset(pud, addr);
32844+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32845+ }
32846+*/
32847+#endif
32848+
32849+#ifdef CONFIG_MODULES
32850+ set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
32851+#endif
32852+
32853+#else
32854+ /* PaX: make kernel code/rodata read-only, rest non-executable */
32855+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
32856+ pgd = pgd_offset_k(addr);
32857+ pud = pud_offset(pgd, addr);
32858+ pmd = pmd_offset(pud, addr);
32859+ if (!pmd_present(*pmd))
32860+ continue;
32861+ if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
32862+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32863+ else
32864+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32865+ }
32866+
32867+ addr = (unsigned long)__va(__pa(__START_KERNEL_map));
32868+ end = addr + KERNEL_IMAGE_SIZE;
32869+ for (; addr < end; addr += PMD_SIZE) {
32870+ pgd = pgd_offset_k(addr);
32871+ pud = pud_offset(pgd, addr);
32872+ pmd = pmd_offset(pud, addr);
32873+ if (!pmd_present(*pmd))
32874+ continue;
32875+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
32876+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32877+ }
32878+#endif
32879+
32880+ flush_tlb_all();
32881+#endif
32882+
32883 free_init_pages("unused kernel",
32884 (unsigned long)(&__init_begin),
32885 (unsigned long)(&__init_end));
32886diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
32887index c8140e1..59257fc 100644
32888--- a/arch/x86/mm/init_32.c
32889+++ b/arch/x86/mm/init_32.c
32890@@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
32891 bool __read_mostly __vmalloc_start_set = false;
32892
32893 /*
32894- * Creates a middle page table and puts a pointer to it in the
32895- * given global directory entry. This only returns the gd entry
32896- * in non-PAE compilation mode, since the middle layer is folded.
32897- */
32898-static pmd_t * __init one_md_table_init(pgd_t *pgd)
32899-{
32900- pud_t *pud;
32901- pmd_t *pmd_table;
32902-
32903-#ifdef CONFIG_X86_PAE
32904- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
32905- pmd_table = (pmd_t *)alloc_low_page();
32906- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
32907- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
32908- pud = pud_offset(pgd, 0);
32909- BUG_ON(pmd_table != pmd_offset(pud, 0));
32910-
32911- return pmd_table;
32912- }
32913-#endif
32914- pud = pud_offset(pgd, 0);
32915- pmd_table = pmd_offset(pud, 0);
32916-
32917- return pmd_table;
32918-}
32919-
32920-/*
32921 * Create a page table and place a pointer to it in a middle page
32922 * directory entry:
32923 */
32924@@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
32925 pte_t *page_table = (pte_t *)alloc_low_page();
32926
32927 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
32928+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32929+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
32930+#else
32931 set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
32932+#endif
32933 BUG_ON(page_table != pte_offset_kernel(pmd, 0));
32934 }
32935
32936 return pte_offset_kernel(pmd, 0);
32937 }
32938
32939+static pmd_t * __init one_md_table_init(pgd_t *pgd)
32940+{
32941+ pud_t *pud;
32942+ pmd_t *pmd_table;
32943+
32944+ pud = pud_offset(pgd, 0);
32945+ pmd_table = pmd_offset(pud, 0);
32946+
32947+ return pmd_table;
32948+}
32949+
32950 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
32951 {
32952 int pgd_idx = pgd_index(vaddr);
32953@@ -208,6 +196,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32954 int pgd_idx, pmd_idx;
32955 unsigned long vaddr;
32956 pgd_t *pgd;
32957+ pud_t *pud;
32958 pmd_t *pmd;
32959 pte_t *pte = NULL;
32960 unsigned long count = page_table_range_init_count(start, end);
32961@@ -222,8 +211,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32962 pgd = pgd_base + pgd_idx;
32963
32964 for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
32965- pmd = one_md_table_init(pgd);
32966- pmd = pmd + pmd_index(vaddr);
32967+ pud = pud_offset(pgd, vaddr);
32968+ pmd = pmd_offset(pud, vaddr);
32969+
32970+#ifdef CONFIG_X86_PAE
32971+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
32972+#endif
32973+
32974 for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
32975 pmd++, pmd_idx++) {
32976 pte = page_table_kmap_check(one_page_table_init(pmd),
32977@@ -235,11 +229,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32978 }
32979 }
32980
32981-static inline int is_kernel_text(unsigned long addr)
32982+static inline int is_kernel_text(unsigned long start, unsigned long end)
32983 {
32984- if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
32985- return 1;
32986- return 0;
32987+ if ((start >= ktla_ktva((unsigned long)_etext) ||
32988+ end <= ktla_ktva((unsigned long)_stext)) &&
32989+ (start >= ktla_ktva((unsigned long)_einittext) ||
32990+ end <= ktla_ktva((unsigned long)_sinittext)) &&
32991+
32992+#ifdef CONFIG_ACPI_SLEEP
32993+ (start >= (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
32994+#endif
32995+
32996+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
32997+ return 0;
32998+ return 1;
32999 }
33000
33001 /*
33002@@ -256,9 +259,10 @@ kernel_physical_mapping_init(unsigned long start,
33003 unsigned long last_map_addr = end;
33004 unsigned long start_pfn, end_pfn;
33005 pgd_t *pgd_base = swapper_pg_dir;
33006- int pgd_idx, pmd_idx, pte_ofs;
33007+ unsigned int pgd_idx, pmd_idx, pte_ofs;
33008 unsigned long pfn;
33009 pgd_t *pgd;
33010+ pud_t *pud;
33011 pmd_t *pmd;
33012 pte_t *pte;
33013 unsigned pages_2m, pages_4k;
33014@@ -291,8 +295,13 @@ repeat:
33015 pfn = start_pfn;
33016 pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
33017 pgd = pgd_base + pgd_idx;
33018- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
33019- pmd = one_md_table_init(pgd);
33020+ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
33021+ pud = pud_offset(pgd, 0);
33022+ pmd = pmd_offset(pud, 0);
33023+
33024+#ifdef CONFIG_X86_PAE
33025+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
33026+#endif
33027
33028 if (pfn >= end_pfn)
33029 continue;
33030@@ -304,14 +313,13 @@ repeat:
33031 #endif
33032 for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
33033 pmd++, pmd_idx++) {
33034- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
33035+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
33036
33037 /*
33038 * Map with big pages if possible, otherwise
33039 * create normal page tables:
33040 */
33041 if (use_pse) {
33042- unsigned int addr2;
33043 pgprot_t prot = PAGE_KERNEL_LARGE;
33044 /*
33045 * first pass will use the same initial
33046@@ -322,11 +330,7 @@ repeat:
33047 _PAGE_PSE);
33048
33049 pfn &= PMD_MASK >> PAGE_SHIFT;
33050- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
33051- PAGE_OFFSET + PAGE_SIZE-1;
33052-
33053- if (is_kernel_text(addr) ||
33054- is_kernel_text(addr2))
33055+ if (is_kernel_text(address, address + PMD_SIZE))
33056 prot = PAGE_KERNEL_LARGE_EXEC;
33057
33058 pages_2m++;
33059@@ -343,7 +347,7 @@ repeat:
33060 pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
33061 pte += pte_ofs;
33062 for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
33063- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
33064+ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
33065 pgprot_t prot = PAGE_KERNEL;
33066 /*
33067 * first pass will use the same initial
33068@@ -351,7 +355,7 @@ repeat:
33069 */
33070 pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
33071
33072- if (is_kernel_text(addr))
33073+ if (is_kernel_text(address, address + PAGE_SIZE))
33074 prot = PAGE_KERNEL_EXEC;
33075
33076 pages_4k++;
33077@@ -474,7 +478,7 @@ void __init native_pagetable_init(void)
33078
33079 pud = pud_offset(pgd, va);
33080 pmd = pmd_offset(pud, va);
33081- if (!pmd_present(*pmd))
33082+ if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
33083 break;
33084
33085 /* should not be large page here */
33086@@ -532,12 +536,10 @@ void __init early_ioremap_page_table_range_init(void)
33087
33088 static void __init pagetable_init(void)
33089 {
33090- pgd_t *pgd_base = swapper_pg_dir;
33091-
33092- permanent_kmaps_init(pgd_base);
33093+ permanent_kmaps_init(swapper_pg_dir);
33094 }
33095
33096-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL);
33097+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL);
33098 EXPORT_SYMBOL_GPL(__supported_pte_mask);
33099
33100 /* user-defined highmem size */
33101@@ -787,10 +789,10 @@ void __init mem_init(void)
33102 ((unsigned long)&__init_end -
33103 (unsigned long)&__init_begin) >> 10,
33104
33105- (unsigned long)&_etext, (unsigned long)&_edata,
33106- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
33107+ (unsigned long)&_sdata, (unsigned long)&_edata,
33108+ ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
33109
33110- (unsigned long)&_text, (unsigned long)&_etext,
33111+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
33112 ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
33113
33114 /*
33115@@ -884,6 +886,7 @@ void set_kernel_text_rw(void)
33116 if (!kernel_set_to_readonly)
33117 return;
33118
33119+ start = ktla_ktva(start);
33120 pr_debug("Set kernel text: %lx - %lx for read write\n",
33121 start, start+size);
33122
33123@@ -898,6 +901,7 @@ void set_kernel_text_ro(void)
33124 if (!kernel_set_to_readonly)
33125 return;
33126
33127+ start = ktla_ktva(start);
33128 pr_debug("Set kernel text: %lx - %lx for read only\n",
33129 start, start+size);
33130
33131@@ -926,6 +930,7 @@ void mark_rodata_ro(void)
33132 unsigned long start = PFN_ALIGN(_text);
33133 unsigned long size = PFN_ALIGN(_etext) - start;
33134
33135+ start = ktla_ktva(start);
33136 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
33137 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
33138 size >> 10);
33139diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
33140index 30eb05a..ae671ac 100644
33141--- a/arch/x86/mm/init_64.c
33142+++ b/arch/x86/mm/init_64.c
33143@@ -150,7 +150,7 @@ early_param("gbpages", parse_direct_gbpages_on);
33144 * around without checking the pgd every time.
33145 */
33146
33147-pteval_t __supported_pte_mask __read_mostly = ~0;
33148+pteval_t __supported_pte_mask __read_only = ~_PAGE_NX;
33149 EXPORT_SYMBOL_GPL(__supported_pte_mask);
33150
33151 int force_personality32;
33152@@ -183,7 +183,12 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33153
33154 for (address = start; address <= end; address += PGDIR_SIZE) {
33155 const pgd_t *pgd_ref = pgd_offset_k(address);
33156+
33157+#ifdef CONFIG_PAX_PER_CPU_PGD
33158+ unsigned long cpu;
33159+#else
33160 struct page *page;
33161+#endif
33162
33163 /*
33164 * When it is called after memory hot remove, pgd_none()
33165@@ -194,6 +199,25 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33166 continue;
33167
33168 spin_lock(&pgd_lock);
33169+
33170+#ifdef CONFIG_PAX_PER_CPU_PGD
33171+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
33172+ pgd_t *pgd = pgd_offset_cpu(cpu, user, address);
33173+
33174+ if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
33175+ BUG_ON(pgd_page_vaddr(*pgd)
33176+ != pgd_page_vaddr(*pgd_ref));
33177+
33178+ if (removed) {
33179+ if (pgd_none(*pgd_ref) && !pgd_none(*pgd))
33180+ pgd_clear(pgd);
33181+ } else {
33182+ if (pgd_none(*pgd))
33183+ set_pgd(pgd, *pgd_ref);
33184+ }
33185+
33186+ pgd = pgd_offset_cpu(cpu, kernel, address);
33187+#else
33188 list_for_each_entry(page, &pgd_list, lru) {
33189 pgd_t *pgd;
33190 spinlock_t *pgt_lock;
33191@@ -202,6 +226,7 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33192 /* the pgt_lock only for Xen */
33193 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
33194 spin_lock(pgt_lock);
33195+#endif
33196
33197 if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
33198 BUG_ON(pgd_page_vaddr(*pgd)
33199@@ -215,7 +240,10 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33200 set_pgd(pgd, *pgd_ref);
33201 }
33202
33203+#ifndef CONFIG_PAX_PER_CPU_PGD
33204 spin_unlock(pgt_lock);
33205+#endif
33206+
33207 }
33208 spin_unlock(&pgd_lock);
33209 }
33210@@ -248,7 +276,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
33211 {
33212 if (pgd_none(*pgd)) {
33213 pud_t *pud = (pud_t *)spp_getpage();
33214- pgd_populate(&init_mm, pgd, pud);
33215+ pgd_populate_kernel(&init_mm, pgd, pud);
33216 if (pud != pud_offset(pgd, 0))
33217 printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
33218 pud, pud_offset(pgd, 0));
33219@@ -260,7 +288,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
33220 {
33221 if (pud_none(*pud)) {
33222 pmd_t *pmd = (pmd_t *) spp_getpage();
33223- pud_populate(&init_mm, pud, pmd);
33224+ pud_populate_kernel(&init_mm, pud, pmd);
33225 if (pmd != pmd_offset(pud, 0))
33226 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
33227 pmd, pmd_offset(pud, 0));
33228@@ -289,7 +317,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
33229 pmd = fill_pmd(pud, vaddr);
33230 pte = fill_pte(pmd, vaddr);
33231
33232+ pax_open_kernel();
33233 set_pte(pte, new_pte);
33234+ pax_close_kernel();
33235
33236 /*
33237 * It's enough to flush this one mapping.
33238@@ -351,14 +381,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
33239 pgd = pgd_offset_k((unsigned long)__va(phys));
33240 if (pgd_none(*pgd)) {
33241 pud = (pud_t *) spp_getpage();
33242- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
33243- _PAGE_USER));
33244+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
33245 }
33246 pud = pud_offset(pgd, (unsigned long)__va(phys));
33247 if (pud_none(*pud)) {
33248 pmd = (pmd_t *) spp_getpage();
33249- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
33250- _PAGE_USER));
33251+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
33252 }
33253 pmd = pmd_offset(pud, phys);
33254 BUG_ON(!pmd_none(*pmd));
33255@@ -599,7 +627,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
33256 prot);
33257
33258 spin_lock(&init_mm.page_table_lock);
33259- pud_populate(&init_mm, pud, pmd);
33260+ pud_populate_kernel(&init_mm, pud, pmd);
33261 spin_unlock(&init_mm.page_table_lock);
33262 }
33263 __flush_tlb_all();
33264@@ -640,7 +668,7 @@ kernel_physical_mapping_init(unsigned long start,
33265 page_size_mask);
33266
33267 spin_lock(&init_mm.page_table_lock);
33268- pgd_populate(&init_mm, pgd, pud);
33269+ pgd_populate_kernel(&init_mm, pgd, pud);
33270 spin_unlock(&init_mm.page_table_lock);
33271 pgd_changed = true;
33272 }
33273diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
33274index 9ca35fc..4b2b7b7 100644
33275--- a/arch/x86/mm/iomap_32.c
33276+++ b/arch/x86/mm/iomap_32.c
33277@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
33278 type = kmap_atomic_idx_push();
33279 idx = type + KM_TYPE_NR * smp_processor_id();
33280 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
33281+
33282+ pax_open_kernel();
33283 set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
33284+ pax_close_kernel();
33285+
33286 arch_flush_lazy_mmu_mode();
33287
33288 return (void *)vaddr;
33289diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
33290index fdf617c..b9e85bc 100644
33291--- a/arch/x86/mm/ioremap.c
33292+++ b/arch/x86/mm/ioremap.c
33293@@ -56,8 +56,8 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
33294 unsigned long i;
33295
33296 for (i = 0; i < nr_pages; ++i)
33297- if (pfn_valid(start_pfn + i) &&
33298- !PageReserved(pfn_to_page(start_pfn + i)))
33299+ if (pfn_valid(start_pfn + i) && (start_pfn + i >= 0x100 ||
33300+ !PageReserved(pfn_to_page(start_pfn + i))))
33301 return 1;
33302
33303 WARN_ONCE(1, "ioremap on RAM pfn 0x%lx\n", start_pfn);
33304@@ -283,7 +283,7 @@ EXPORT_SYMBOL(ioremap_prot);
33305 *
33306 * Caller must ensure there is only one unmapping for the same pointer.
33307 */
33308-void iounmap(volatile void __iomem *addr)
33309+void iounmap(const volatile void __iomem *addr)
33310 {
33311 struct vm_struct *p, *o;
33312
33313@@ -332,30 +332,29 @@ EXPORT_SYMBOL(iounmap);
33314 */
33315 void *xlate_dev_mem_ptr(phys_addr_t phys)
33316 {
33317- void *addr;
33318- unsigned long start = phys & PAGE_MASK;
33319-
33320 /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
33321- if (page_is_ram(start >> PAGE_SHIFT))
33322+ if (page_is_ram(phys >> PAGE_SHIFT))
33323+#ifdef CONFIG_HIGHMEM
33324+ if ((phys >> PAGE_SHIFT) < max_low_pfn)
33325+#endif
33326 return __va(phys);
33327
33328- addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
33329- if (addr)
33330- addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
33331-
33332- return addr;
33333+ return (void __force *)ioremap_cache(phys, PAGE_SIZE);
33334 }
33335
33336 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
33337 {
33338 if (page_is_ram(phys >> PAGE_SHIFT))
33339+#ifdef CONFIG_HIGHMEM
33340+ if ((phys >> PAGE_SHIFT) < max_low_pfn)
33341+#endif
33342 return;
33343
33344 iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
33345 return;
33346 }
33347
33348-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
33349+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
33350
33351 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
33352 {
33353@@ -391,8 +390,7 @@ void __init early_ioremap_init(void)
33354 early_ioremap_setup();
33355
33356 pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
33357- memset(bm_pte, 0, sizeof(bm_pte));
33358- pmd_populate_kernel(&init_mm, pmd, bm_pte);
33359+ pmd_populate_user(&init_mm, pmd, bm_pte);
33360
33361 /*
33362 * The boot-ioremap range spans multiple pmds, for which
33363diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
33364index b4f2e7e..96c9c3e 100644
33365--- a/arch/x86/mm/kmemcheck/kmemcheck.c
33366+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
33367@@ -628,9 +628,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
33368 * memory (e.g. tracked pages)? For now, we need this to avoid
33369 * invoking kmemcheck for PnP BIOS calls.
33370 */
33371- if (regs->flags & X86_VM_MASK)
33372+ if (v8086_mode(regs))
33373 return false;
33374- if (regs->cs != __KERNEL_CS)
33375+ if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
33376 return false;
33377
33378 pte = kmemcheck_pte_lookup(address);
33379diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
33380index df4552b..12c129c 100644
33381--- a/arch/x86/mm/mmap.c
33382+++ b/arch/x86/mm/mmap.c
33383@@ -52,7 +52,7 @@ static unsigned long stack_maxrandom_size(void)
33384 * Leave an at least ~128 MB hole with possible stack randomization.
33385 */
33386 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
33387-#define MAX_GAP (TASK_SIZE/6*5)
33388+#define MAX_GAP (pax_task_size/6*5)
33389
33390 static int mmap_is_legacy(void)
33391 {
33392@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
33393 return rnd << PAGE_SHIFT;
33394 }
33395
33396-static unsigned long mmap_base(void)
33397+static unsigned long mmap_base(struct mm_struct *mm)
33398 {
33399 unsigned long gap = rlimit(RLIMIT_STACK);
33400+ unsigned long pax_task_size = TASK_SIZE;
33401+
33402+#ifdef CONFIG_PAX_SEGMEXEC
33403+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
33404+ pax_task_size = SEGMEXEC_TASK_SIZE;
33405+#endif
33406
33407 if (gap < MIN_GAP)
33408 gap = MIN_GAP;
33409 else if (gap > MAX_GAP)
33410 gap = MAX_GAP;
33411
33412- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
33413+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
33414 }
33415
33416 /*
33417 * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
33418 * does, but not when emulating X86_32
33419 */
33420-static unsigned long mmap_legacy_base(void)
33421+static unsigned long mmap_legacy_base(struct mm_struct *mm)
33422 {
33423- if (mmap_is_ia32())
33424+ if (mmap_is_ia32()) {
33425+
33426+#ifdef CONFIG_PAX_SEGMEXEC
33427+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
33428+ return SEGMEXEC_TASK_UNMAPPED_BASE;
33429+ else
33430+#endif
33431+
33432 return TASK_UNMAPPED_BASE;
33433- else
33434+ } else
33435 return TASK_UNMAPPED_BASE + mmap_rnd();
33436 }
33437
33438@@ -112,8 +125,15 @@ static unsigned long mmap_legacy_base(void)
33439 */
33440 void arch_pick_mmap_layout(struct mm_struct *mm)
33441 {
33442- mm->mmap_legacy_base = mmap_legacy_base();
33443- mm->mmap_base = mmap_base();
33444+ mm->mmap_legacy_base = mmap_legacy_base(mm);
33445+ mm->mmap_base = mmap_base(mm);
33446+
33447+#ifdef CONFIG_PAX_RANDMMAP
33448+ if (mm->pax_flags & MF_PAX_RANDMMAP) {
33449+ mm->mmap_legacy_base += mm->delta_mmap;
33450+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
33451+ }
33452+#endif
33453
33454 if (mmap_is_legacy()) {
33455 mm->mmap_base = mm->mmap_legacy_base;
33456diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
33457index 0057a7a..95c7edd 100644
33458--- a/arch/x86/mm/mmio-mod.c
33459+++ b/arch/x86/mm/mmio-mod.c
33460@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
33461 break;
33462 default:
33463 {
33464- unsigned char *ip = (unsigned char *)instptr;
33465+ unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
33466 my_trace->opcode = MMIO_UNKNOWN_OP;
33467 my_trace->width = 0;
33468 my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
33469@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
33470 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33471 void __iomem *addr)
33472 {
33473- static atomic_t next_id;
33474+ static atomic_unchecked_t next_id;
33475 struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
33476 /* These are page-unaligned. */
33477 struct mmiotrace_map map = {
33478@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33479 .private = trace
33480 },
33481 .phys = offset,
33482- .id = atomic_inc_return(&next_id)
33483+ .id = atomic_inc_return_unchecked(&next_id)
33484 };
33485 map.map_id = trace->id;
33486
33487@@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
33488 ioremap_trace_core(offset, size, addr);
33489 }
33490
33491-static void iounmap_trace_core(volatile void __iomem *addr)
33492+static void iounmap_trace_core(const volatile void __iomem *addr)
33493 {
33494 struct mmiotrace_map map = {
33495 .phys = 0,
33496@@ -328,7 +328,7 @@ not_enabled:
33497 }
33498 }
33499
33500-void mmiotrace_iounmap(volatile void __iomem *addr)
33501+void mmiotrace_iounmap(const volatile void __iomem *addr)
33502 {
33503 might_sleep();
33504 if (is_enabled()) /* recheck and proper locking in *_core() */
33505diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
33506index cd4785b..25188b6 100644
33507--- a/arch/x86/mm/numa.c
33508+++ b/arch/x86/mm/numa.c
33509@@ -499,7 +499,7 @@ static void __init numa_clear_kernel_node_hotplug(void)
33510 }
33511 }
33512
33513-static int __init numa_register_memblks(struct numa_meminfo *mi)
33514+static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
33515 {
33516 unsigned long uninitialized_var(pfn_align);
33517 int i, nid;
33518diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
33519index 536ea2f..f42c293 100644
33520--- a/arch/x86/mm/pageattr.c
33521+++ b/arch/x86/mm/pageattr.c
33522@@ -262,7 +262,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33523 */
33524 #ifdef CONFIG_PCI_BIOS
33525 if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
33526- pgprot_val(forbidden) |= _PAGE_NX;
33527+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33528 #endif
33529
33530 /*
33531@@ -270,9 +270,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33532 * Does not cover __inittext since that is gone later on. On
33533 * 64bit we do not enforce !NX on the low mapping
33534 */
33535- if (within(address, (unsigned long)_text, (unsigned long)_etext))
33536- pgprot_val(forbidden) |= _PAGE_NX;
33537+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
33538+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33539
33540+#ifdef CONFIG_DEBUG_RODATA
33541 /*
33542 * The .rodata section needs to be read-only. Using the pfn
33543 * catches all aliases.
33544@@ -280,6 +281,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33545 if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
33546 __pa_symbol(__end_rodata) >> PAGE_SHIFT))
33547 pgprot_val(forbidden) |= _PAGE_RW;
33548+#endif
33549
33550 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
33551 /*
33552@@ -318,6 +320,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33553 }
33554 #endif
33555
33556+#ifdef CONFIG_PAX_KERNEXEC
33557+ if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
33558+ pgprot_val(forbidden) |= _PAGE_RW;
33559+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33560+ }
33561+#endif
33562+
33563 prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
33564
33565 return prot;
33566@@ -440,23 +449,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
33567 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
33568 {
33569 /* change init_mm */
33570+ pax_open_kernel();
33571 set_pte_atomic(kpte, pte);
33572+
33573 #ifdef CONFIG_X86_32
33574 if (!SHARED_KERNEL_PMD) {
33575+
33576+#ifdef CONFIG_PAX_PER_CPU_PGD
33577+ unsigned long cpu;
33578+#else
33579 struct page *page;
33580+#endif
33581
33582+#ifdef CONFIG_PAX_PER_CPU_PGD
33583+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
33584+ pgd_t *pgd = get_cpu_pgd(cpu, kernel);
33585+#else
33586 list_for_each_entry(page, &pgd_list, lru) {
33587- pgd_t *pgd;
33588+ pgd_t *pgd = (pgd_t *)page_address(page);
33589+#endif
33590+
33591 pud_t *pud;
33592 pmd_t *pmd;
33593
33594- pgd = (pgd_t *)page_address(page) + pgd_index(address);
33595+ pgd += pgd_index(address);
33596 pud = pud_offset(pgd, address);
33597 pmd = pmd_offset(pud, address);
33598 set_pte_atomic((pte_t *)pmd, pte);
33599 }
33600 }
33601 #endif
33602+ pax_close_kernel();
33603 }
33604
33605 static int
33606diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
33607index 7ac6869..c0ba541 100644
33608--- a/arch/x86/mm/pat.c
33609+++ b/arch/x86/mm/pat.c
33610@@ -89,7 +89,7 @@ static inline enum page_cache_mode get_page_memtype(struct page *pg)
33611 unsigned long pg_flags = pg->flags & _PGMT_MASK;
33612
33613 if (pg_flags == _PGMT_DEFAULT)
33614- return -1;
33615+ return _PAGE_CACHE_MODE_NUM;
33616 else if (pg_flags == _PGMT_WC)
33617 return _PAGE_CACHE_MODE_WC;
33618 else if (pg_flags == _PGMT_UC_MINUS)
33619@@ -346,7 +346,7 @@ static int reserve_ram_pages_type(u64 start, u64 end,
33620
33621 page = pfn_to_page(pfn);
33622 type = get_page_memtype(page);
33623- if (type != -1) {
33624+ if (type != _PAGE_CACHE_MODE_NUM) {
33625 pr_info("reserve_ram_pages_type failed [mem %#010Lx-%#010Lx], track 0x%x, req 0x%x\n",
33626 start, end - 1, type, req_type);
33627 if (new_type)
33628@@ -498,7 +498,7 @@ int free_memtype(u64 start, u64 end)
33629
33630 if (!entry) {
33631 printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
33632- current->comm, current->pid, start, end - 1);
33633+ current->comm, task_pid_nr(current), start, end - 1);
33634 return -EINVAL;
33635 }
33636
33637@@ -532,10 +532,10 @@ static enum page_cache_mode lookup_memtype(u64 paddr)
33638 page = pfn_to_page(paddr >> PAGE_SHIFT);
33639 rettype = get_page_memtype(page);
33640 /*
33641- * -1 from get_page_memtype() implies RAM page is in its
33642+ * _PAGE_CACHE_MODE_NUM from get_page_memtype() implies RAM page is in its
33643 * default state and not reserved, and hence of type WB
33644 */
33645- if (rettype == -1)
33646+ if (rettype == _PAGE_CACHE_MODE_NUM)
33647 rettype = _PAGE_CACHE_MODE_WB;
33648
33649 return rettype;
33650@@ -628,8 +628,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
33651
33652 while (cursor < to) {
33653 if (!devmem_is_allowed(pfn)) {
33654- printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
33655- current->comm, from, to - 1);
33656+ printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
33657+ current->comm, from, to - 1, cursor);
33658 return 0;
33659 }
33660 cursor += PAGE_SIZE;
33661@@ -700,7 +700,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size,
33662 if (ioremap_change_attr((unsigned long)__va(base), id_sz, pcm) < 0) {
33663 printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
33664 "for [mem %#010Lx-%#010Lx]\n",
33665- current->comm, current->pid,
33666+ current->comm, task_pid_nr(current),
33667 cattr_name(pcm),
33668 base, (unsigned long long)(base + size-1));
33669 return -EINVAL;
33670@@ -735,7 +735,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33671 pcm = lookup_memtype(paddr);
33672 if (want_pcm != pcm) {
33673 printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
33674- current->comm, current->pid,
33675+ current->comm, task_pid_nr(current),
33676 cattr_name(want_pcm),
33677 (unsigned long long)paddr,
33678 (unsigned long long)(paddr + size - 1),
33679@@ -757,7 +757,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33680 free_memtype(paddr, paddr + size);
33681 printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
33682 " for [mem %#010Lx-%#010Lx], got %s\n",
33683- current->comm, current->pid,
33684+ current->comm, task_pid_nr(current),
33685 cattr_name(want_pcm),
33686 (unsigned long long)paddr,
33687 (unsigned long long)(paddr + size - 1),
33688diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
33689index 6582adc..fcc5d0b 100644
33690--- a/arch/x86/mm/pat_rbtree.c
33691+++ b/arch/x86/mm/pat_rbtree.c
33692@@ -161,7 +161,7 @@ success:
33693
33694 failure:
33695 printk(KERN_INFO "%s:%d conflicting memory types "
33696- "%Lx-%Lx %s<->%s\n", current->comm, current->pid, start,
33697+ "%Lx-%Lx %s<->%s\n", current->comm, task_pid_nr(current), start,
33698 end, cattr_name(found_type), cattr_name(match->type));
33699 return -EBUSY;
33700 }
33701diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
33702index 9f0614d..92ae64a 100644
33703--- a/arch/x86/mm/pf_in.c
33704+++ b/arch/x86/mm/pf_in.c
33705@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
33706 int i;
33707 enum reason_type rv = OTHERS;
33708
33709- p = (unsigned char *)ins_addr;
33710+ p = (unsigned char *)ktla_ktva(ins_addr);
33711 p += skip_prefix(p, &prf);
33712 p += get_opcode(p, &opcode);
33713
33714@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
33715 struct prefix_bits prf;
33716 int i;
33717
33718- p = (unsigned char *)ins_addr;
33719+ p = (unsigned char *)ktla_ktva(ins_addr);
33720 p += skip_prefix(p, &prf);
33721 p += get_opcode(p, &opcode);
33722
33723@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
33724 struct prefix_bits prf;
33725 int i;
33726
33727- p = (unsigned char *)ins_addr;
33728+ p = (unsigned char *)ktla_ktva(ins_addr);
33729 p += skip_prefix(p, &prf);
33730 p += get_opcode(p, &opcode);
33731
33732@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
33733 struct prefix_bits prf;
33734 int i;
33735
33736- p = (unsigned char *)ins_addr;
33737+ p = (unsigned char *)ktla_ktva(ins_addr);
33738 p += skip_prefix(p, &prf);
33739 p += get_opcode(p, &opcode);
33740 for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
33741@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
33742 struct prefix_bits prf;
33743 int i;
33744
33745- p = (unsigned char *)ins_addr;
33746+ p = (unsigned char *)ktla_ktva(ins_addr);
33747 p += skip_prefix(p, &prf);
33748 p += get_opcode(p, &opcode);
33749 for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
33750diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
33751index 7b22ada..b11e66f 100644
33752--- a/arch/x86/mm/pgtable.c
33753+++ b/arch/x86/mm/pgtable.c
33754@@ -97,10 +97,75 @@ static inline void pgd_list_del(pgd_t *pgd)
33755 list_del(&page->lru);
33756 }
33757
33758-#define UNSHARED_PTRS_PER_PGD \
33759- (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33760+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33761+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
33762
33763+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
33764+{
33765+ unsigned int count = USER_PGD_PTRS;
33766
33767+ if (!pax_user_shadow_base)
33768+ return;
33769+
33770+ while (count--)
33771+ *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
33772+}
33773+#endif
33774+
33775+#ifdef CONFIG_PAX_PER_CPU_PGD
33776+void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
33777+{
33778+ unsigned int count = USER_PGD_PTRS;
33779+
33780+ while (count--) {
33781+ pgd_t pgd;
33782+
33783+#ifdef CONFIG_X86_64
33784+ pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
33785+#else
33786+ pgd = *src++;
33787+#endif
33788+
33789+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33790+ pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
33791+#endif
33792+
33793+ *dst++ = pgd;
33794+ }
33795+
33796+}
33797+#endif
33798+
33799+#ifdef CONFIG_X86_64
33800+#define pxd_t pud_t
33801+#define pyd_t pgd_t
33802+#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn)
33803+#define pgtable_pxd_page_ctor(page) true
33804+#define pgtable_pxd_page_dtor(page) do {} while (0)
33805+#define pxd_free(mm, pud) pud_free((mm), (pud))
33806+#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud))
33807+#define pyd_offset(mm, address) pgd_offset((mm), (address))
33808+#define PYD_SIZE PGDIR_SIZE
33809+#define mm_inc_nr_pxds(mm) do {} while (0)
33810+#define mm_dec_nr_pxds(mm) do {} while (0)
33811+#else
33812+#define pxd_t pmd_t
33813+#define pyd_t pud_t
33814+#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn)
33815+#define pgtable_pxd_page_ctor(page) pgtable_pmd_page_ctor(page)
33816+#define pgtable_pxd_page_dtor(page) pgtable_pmd_page_dtor(page)
33817+#define pxd_free(mm, pud) pmd_free((mm), (pud))
33818+#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud))
33819+#define pyd_offset(mm, address) pud_offset((mm), (address))
33820+#define PYD_SIZE PUD_SIZE
33821+#define mm_inc_nr_pxds(mm) mm_inc_nr_pmds(mm)
33822+#define mm_dec_nr_pxds(mm) mm_dec_nr_pmds(mm)
33823+#endif
33824+
33825+#ifdef CONFIG_PAX_PER_CPU_PGD
33826+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
33827+static inline void pgd_dtor(pgd_t *pgd) {}
33828+#else
33829 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
33830 {
33831 BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
33832@@ -141,6 +206,7 @@ static void pgd_dtor(pgd_t *pgd)
33833 pgd_list_del(pgd);
33834 spin_unlock(&pgd_lock);
33835 }
33836+#endif
33837
33838 /*
33839 * List of all pgd's needed for non-PAE so it can invalidate entries
33840@@ -153,7 +219,7 @@ static void pgd_dtor(pgd_t *pgd)
33841 * -- nyc
33842 */
33843
33844-#ifdef CONFIG_X86_PAE
33845+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
33846 /*
33847 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
33848 * updating the top-level pagetable entries to guarantee the
33849@@ -165,7 +231,7 @@ static void pgd_dtor(pgd_t *pgd)
33850 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
33851 * and initialize the kernel pmds here.
33852 */
33853-#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD
33854+#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33855
33856 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33857 {
33858@@ -183,46 +249,48 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33859 */
33860 flush_tlb_mm(mm);
33861 }
33862+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
33863+#define PREALLOCATED_PXDS USER_PGD_PTRS
33864 #else /* !CONFIG_X86_PAE */
33865
33866 /* No need to prepopulate any pagetable entries in non-PAE modes. */
33867-#define PREALLOCATED_PMDS 0
33868+#define PREALLOCATED_PXDS 0
33869
33870 #endif /* CONFIG_X86_PAE */
33871
33872-static void free_pmds(struct mm_struct *mm, pmd_t *pmds[])
33873+static void free_pxds(struct mm_struct *mm, pxd_t *pxds[])
33874 {
33875 int i;
33876
33877- for(i = 0; i < PREALLOCATED_PMDS; i++)
33878- if (pmds[i]) {
33879- pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
33880- free_page((unsigned long)pmds[i]);
33881- mm_dec_nr_pmds(mm);
33882+ for(i = 0; i < PREALLOCATED_PXDS; i++)
33883+ if (pxds[i]) {
33884+ pgtable_pxd_page_dtor(virt_to_page(pxds[i]));
33885+ free_page((unsigned long)pxds[i]);
33886+ mm_dec_nr_pxds(mm);
33887 }
33888 }
33889
33890-static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
33891+static int preallocate_pxds(struct mm_struct *mm, pxd_t *pxds[])
33892 {
33893 int i;
33894 bool failed = false;
33895
33896- for(i = 0; i < PREALLOCATED_PMDS; i++) {
33897- pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
33898- if (!pmd)
33899+ for(i = 0; i < PREALLOCATED_PXDS; i++) {
33900+ pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
33901+ if (!pxd)
33902 failed = true;
33903- if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
33904- free_page((unsigned long)pmd);
33905- pmd = NULL;
33906+ if (pxd && !pgtable_pxd_page_ctor(virt_to_page(pxd))) {
33907+ free_page((unsigned long)pxd);
33908+ pxd = NULL;
33909 failed = true;
33910 }
33911- if (pmd)
33912- mm_inc_nr_pmds(mm);
33913- pmds[i] = pmd;
33914+ if (pxd)
33915+ mm_inc_nr_pxds(mm);
33916+ pxds[i] = pxd;
33917 }
33918
33919 if (failed) {
33920- free_pmds(mm, pmds);
33921+ free_pxds(mm, pxds);
33922 return -ENOMEM;
33923 }
33924
33925@@ -235,50 +303,54 @@ static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
33926 * preallocate which never got a corresponding vma will need to be
33927 * freed manually.
33928 */
33929-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
33930+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
33931 {
33932 int i;
33933
33934- for(i = 0; i < PREALLOCATED_PMDS; i++) {
33935+ for(i = 0; i < PREALLOCATED_PXDS; i++) {
33936 pgd_t pgd = pgdp[i];
33937
33938 if (pgd_val(pgd) != 0) {
33939- pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
33940+ pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
33941
33942- pgdp[i] = native_make_pgd(0);
33943+ set_pgd(pgdp + i, native_make_pgd(0));
33944
33945- paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
33946- pmd_free(mm, pmd);
33947- mm_dec_nr_pmds(mm);
33948+ paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
33949+ pxd_free(mm, pxd);
33950+ mm_dec_nr_pxds(mm);
33951 }
33952 }
33953 }
33954
33955-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
33956+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
33957 {
33958- pud_t *pud;
33959+ pyd_t *pyd;
33960 int i;
33961
33962- if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
33963+ if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
33964 return;
33965
33966- pud = pud_offset(pgd, 0);
33967+#ifdef CONFIG_X86_64
33968+ pyd = pyd_offset(mm, 0L);
33969+#else
33970+ pyd = pyd_offset(pgd, 0L);
33971+#endif
33972
33973- for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
33974- pmd_t *pmd = pmds[i];
33975+ for (i = 0; i < PREALLOCATED_PXDS; i++, pyd++) {
33976+ pxd_t *pxd = pxds[i];
33977
33978 if (i >= KERNEL_PGD_BOUNDARY)
33979- memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
33980- sizeof(pmd_t) * PTRS_PER_PMD);
33981+ memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
33982+ sizeof(pxd_t) * PTRS_PER_PMD);
33983
33984- pud_populate(mm, pud, pmd);
33985+ pyd_populate(mm, pyd, pxd);
33986 }
33987 }
33988
33989 pgd_t *pgd_alloc(struct mm_struct *mm)
33990 {
33991 pgd_t *pgd;
33992- pmd_t *pmds[PREALLOCATED_PMDS];
33993+ pxd_t *pxds[PREALLOCATED_PXDS];
33994
33995 pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
33996
33997@@ -287,11 +359,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
33998
33999 mm->pgd = pgd;
34000
34001- if (preallocate_pmds(mm, pmds) != 0)
34002+ if (preallocate_pxds(mm, pxds) != 0)
34003 goto out_free_pgd;
34004
34005 if (paravirt_pgd_alloc(mm) != 0)
34006- goto out_free_pmds;
34007+ goto out_free_pxds;
34008
34009 /*
34010 * Make sure that pre-populating the pmds is atomic with
34011@@ -301,14 +373,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
34012 spin_lock(&pgd_lock);
34013
34014 pgd_ctor(mm, pgd);
34015- pgd_prepopulate_pmd(mm, pgd, pmds);
34016+ pgd_prepopulate_pxd(mm, pgd, pxds);
34017
34018 spin_unlock(&pgd_lock);
34019
34020 return pgd;
34021
34022-out_free_pmds:
34023- free_pmds(mm, pmds);
34024+out_free_pxds:
34025+ free_pxds(mm, pxds);
34026 out_free_pgd:
34027 free_page((unsigned long)pgd);
34028 out:
34029@@ -317,7 +389,7 @@ out:
34030
34031 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
34032 {
34033- pgd_mop_up_pmds(mm, pgd);
34034+ pgd_mop_up_pxds(mm, pgd);
34035 pgd_dtor(pgd);
34036 paravirt_pgd_free(mm, pgd);
34037 free_page((unsigned long)pgd);
34038diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
34039index 75cc097..79a097f 100644
34040--- a/arch/x86/mm/pgtable_32.c
34041+++ b/arch/x86/mm/pgtable_32.c
34042@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
34043 return;
34044 }
34045 pte = pte_offset_kernel(pmd, vaddr);
34046+
34047+ pax_open_kernel();
34048 if (pte_val(pteval))
34049 set_pte_at(&init_mm, vaddr, pte, pteval);
34050 else
34051 pte_clear(&init_mm, vaddr, pte);
34052+ pax_close_kernel();
34053
34054 /*
34055 * It's enough to flush this one mapping.
34056diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
34057index e666cbb..61788c45 100644
34058--- a/arch/x86/mm/physaddr.c
34059+++ b/arch/x86/mm/physaddr.c
34060@@ -10,7 +10,7 @@
34061 #ifdef CONFIG_X86_64
34062
34063 #ifdef CONFIG_DEBUG_VIRTUAL
34064-unsigned long __phys_addr(unsigned long x)
34065+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
34066 {
34067 unsigned long y = x - __START_KERNEL_map;
34068
34069@@ -67,7 +67,7 @@ EXPORT_SYMBOL(__virt_addr_valid);
34070 #else
34071
34072 #ifdef CONFIG_DEBUG_VIRTUAL
34073-unsigned long __phys_addr(unsigned long x)
34074+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
34075 {
34076 unsigned long phys_addr = x - PAGE_OFFSET;
34077 /* VMALLOC_* aren't constants */
34078diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
34079index 90555bf..f5f1828 100644
34080--- a/arch/x86/mm/setup_nx.c
34081+++ b/arch/x86/mm/setup_nx.c
34082@@ -5,8 +5,10 @@
34083 #include <asm/pgtable.h>
34084 #include <asm/proto.h>
34085
34086+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
34087 static int disable_nx;
34088
34089+#ifndef CONFIG_PAX_PAGEEXEC
34090 /*
34091 * noexec = on|off
34092 *
34093@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
34094 return 0;
34095 }
34096 early_param("noexec", noexec_setup);
34097+#endif
34098+
34099+#endif
34100
34101 void x86_configure_nx(void)
34102 {
34103+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
34104 if (cpu_has_nx && !disable_nx)
34105 __supported_pte_mask |= _PAGE_NX;
34106 else
34107+#endif
34108 __supported_pte_mask &= ~_PAGE_NX;
34109 }
34110
34111diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
34112index 3250f23..7a97ba2 100644
34113--- a/arch/x86/mm/tlb.c
34114+++ b/arch/x86/mm/tlb.c
34115@@ -45,7 +45,11 @@ void leave_mm(int cpu)
34116 BUG();
34117 if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
34118 cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
34119+
34120+#ifndef CONFIG_PAX_PER_CPU_PGD
34121 load_cr3(swapper_pg_dir);
34122+#endif
34123+
34124 /*
34125 * This gets called in the idle path where RCU
34126 * functions differently. Tracing normally
34127diff --git a/arch/x86/mm/uderef_64.c b/arch/x86/mm/uderef_64.c
34128new file mode 100644
34129index 0000000..dace51c
34130--- /dev/null
34131+++ b/arch/x86/mm/uderef_64.c
34132@@ -0,0 +1,37 @@
34133+#include <linux/mm.h>
34134+#include <asm/pgtable.h>
34135+#include <asm/uaccess.h>
34136+
34137+#ifdef CONFIG_PAX_MEMORY_UDEREF
34138+/* PaX: due to the special call convention these functions must
34139+ * - remain leaf functions under all configurations,
34140+ * - never be called directly, only dereferenced from the wrappers.
34141+ */
34142+void __pax_open_userland(void)
34143+{
34144+ unsigned int cpu;
34145+
34146+ if (unlikely(!segment_eq(get_fs(), USER_DS)))
34147+ return;
34148+
34149+ cpu = raw_get_cpu();
34150+ BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_KERNEL);
34151+ write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
34152+ raw_put_cpu_no_resched();
34153+}
34154+EXPORT_SYMBOL(__pax_open_userland);
34155+
34156+void __pax_close_userland(void)
34157+{
34158+ unsigned int cpu;
34159+
34160+ if (unlikely(!segment_eq(get_fs(), USER_DS)))
34161+ return;
34162+
34163+ cpu = raw_get_cpu();
34164+ BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_USER);
34165+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
34166+ raw_put_cpu_no_resched();
34167+}
34168+EXPORT_SYMBOL(__pax_close_userland);
34169+#endif
34170diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
34171index 6440221..f84b5c7 100644
34172--- a/arch/x86/net/bpf_jit.S
34173+++ b/arch/x86/net/bpf_jit.S
34174@@ -9,6 +9,7 @@
34175 */
34176 #include <linux/linkage.h>
34177 #include <asm/dwarf2.h>
34178+#include <asm/alternative-asm.h>
34179
34180 /*
34181 * Calling convention :
34182@@ -38,6 +39,7 @@ sk_load_word_positive_offset:
34183 jle bpf_slow_path_word
34184 mov (SKBDATA,%rsi),%eax
34185 bswap %eax /* ntohl() */
34186+ pax_force_retaddr
34187 ret
34188
34189 sk_load_half:
34190@@ -55,6 +57,7 @@ sk_load_half_positive_offset:
34191 jle bpf_slow_path_half
34192 movzwl (SKBDATA,%rsi),%eax
34193 rol $8,%ax # ntohs()
34194+ pax_force_retaddr
34195 ret
34196
34197 sk_load_byte:
34198@@ -69,6 +72,7 @@ sk_load_byte_positive_offset:
34199 cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */
34200 jle bpf_slow_path_byte
34201 movzbl (SKBDATA,%rsi),%eax
34202+ pax_force_retaddr
34203 ret
34204
34205 /* rsi contains offset and can be scratched */
34206@@ -90,6 +94,7 @@ bpf_slow_path_word:
34207 js bpf_error
34208 mov - MAX_BPF_STACK + 32(%rbp),%eax
34209 bswap %eax
34210+ pax_force_retaddr
34211 ret
34212
34213 bpf_slow_path_half:
34214@@ -98,12 +103,14 @@ bpf_slow_path_half:
34215 mov - MAX_BPF_STACK + 32(%rbp),%ax
34216 rol $8,%ax
34217 movzwl %ax,%eax
34218+ pax_force_retaddr
34219 ret
34220
34221 bpf_slow_path_byte:
34222 bpf_slow_path_common(1)
34223 js bpf_error
34224 movzbl - MAX_BPF_STACK + 32(%rbp),%eax
34225+ pax_force_retaddr
34226 ret
34227
34228 #define sk_negative_common(SIZE) \
34229@@ -126,6 +133,7 @@ sk_load_word_negative_offset:
34230 sk_negative_common(4)
34231 mov (%rax), %eax
34232 bswap %eax
34233+ pax_force_retaddr
34234 ret
34235
34236 bpf_slow_path_half_neg:
34237@@ -137,6 +145,7 @@ sk_load_half_negative_offset:
34238 mov (%rax),%ax
34239 rol $8,%ax
34240 movzwl %ax,%eax
34241+ pax_force_retaddr
34242 ret
34243
34244 bpf_slow_path_byte_neg:
34245@@ -146,6 +155,7 @@ sk_load_byte_negative_offset:
34246 .globl sk_load_byte_negative_offset
34247 sk_negative_common(1)
34248 movzbl (%rax), %eax
34249+ pax_force_retaddr
34250 ret
34251
34252 bpf_error:
34253@@ -156,4 +166,5 @@ bpf_error:
34254 mov - MAX_BPF_STACK + 16(%rbp),%r14
34255 mov - MAX_BPF_STACK + 24(%rbp),%r15
34256 leaveq
34257+ pax_force_retaddr
34258 ret
34259diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
34260index 9875143..36776ae 100644
34261--- a/arch/x86/net/bpf_jit_comp.c
34262+++ b/arch/x86/net/bpf_jit_comp.c
34263@@ -13,7 +13,11 @@
34264 #include <linux/if_vlan.h>
34265 #include <asm/cacheflush.h>
34266
34267+#ifdef CONFIG_GRKERNSEC_BPF_HARDEN
34268+int bpf_jit_enable __read_only;
34269+#else
34270 int bpf_jit_enable __read_mostly;
34271+#endif
34272
34273 /*
34274 * assembly code in arch/x86/net/bpf_jit.S
34275@@ -174,7 +178,9 @@ static u8 add_2reg(u8 byte, u32 dst_reg, u32 src_reg)
34276 static void jit_fill_hole(void *area, unsigned int size)
34277 {
34278 /* fill whole space with int3 instructions */
34279+ pax_open_kernel();
34280 memset(area, 0xcc, size);
34281+ pax_close_kernel();
34282 }
34283
34284 struct jit_context {
34285@@ -559,6 +565,13 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
34286 if (is_ereg(dst_reg))
34287 EMIT1(0x41);
34288 EMIT3(0xC1, add_1reg(0xC8, dst_reg), 8);
34289+
34290+ /* emit 'movzwl eax, ax' */
34291+ if (is_ereg(dst_reg))
34292+ EMIT3(0x45, 0x0F, 0xB7);
34293+ else
34294+ EMIT2(0x0F, 0xB7);
34295+ EMIT1(add_2reg(0xC0, dst_reg, dst_reg));
34296 break;
34297 case 32:
34298 /* emit 'bswap eax' to swap lower 4 bytes */
34299@@ -577,6 +590,27 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
34300 break;
34301
34302 case BPF_ALU | BPF_END | BPF_FROM_LE:
34303+ switch (imm32) {
34304+ case 16:
34305+ /* emit 'movzwl eax, ax' to zero extend 16-bit
34306+ * into 64 bit
34307+ */
34308+ if (is_ereg(dst_reg))
34309+ EMIT3(0x45, 0x0F, 0xB7);
34310+ else
34311+ EMIT2(0x0F, 0xB7);
34312+ EMIT1(add_2reg(0xC0, dst_reg, dst_reg));
34313+ break;
34314+ case 32:
34315+ /* emit 'mov eax, eax' to clear upper 32-bits */
34316+ if (is_ereg(dst_reg))
34317+ EMIT1(0x45);
34318+ EMIT2(0x89, add_2reg(0xC0, dst_reg, dst_reg));
34319+ break;
34320+ case 64:
34321+ /* nop */
34322+ break;
34323+ }
34324 break;
34325
34326 /* ST: *(u8*)(dst_reg + off) = imm */
34327@@ -896,7 +930,9 @@ common_load:
34328 pr_err("bpf_jit_compile fatal error\n");
34329 return -EFAULT;
34330 }
34331+ pax_open_kernel();
34332 memcpy(image + proglen, temp, ilen);
34333+ pax_close_kernel();
34334 }
34335 proglen += ilen;
34336 addrs[i] = proglen;
34337@@ -968,7 +1004,6 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
34338
34339 if (image) {
34340 bpf_flush_icache(header, image + proglen);
34341- set_memory_ro((unsigned long)header, header->pages);
34342 prog->bpf_func = (void *)image;
34343 prog->jited = true;
34344 }
34345@@ -981,12 +1016,8 @@ void bpf_jit_free(struct bpf_prog *fp)
34346 unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
34347 struct bpf_binary_header *header = (void *)addr;
34348
34349- if (!fp->jited)
34350- goto free_filter;
34351+ if (fp->jited)
34352+ bpf_jit_binary_free(header);
34353
34354- set_memory_rw(addr, header->pages);
34355- bpf_jit_binary_free(header);
34356-
34357-free_filter:
34358 bpf_prog_unlock_free(fp);
34359 }
34360diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
34361index 5d04be5..2beeaa2 100644
34362--- a/arch/x86/oprofile/backtrace.c
34363+++ b/arch/x86/oprofile/backtrace.c
34364@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
34365 struct stack_frame_ia32 *fp;
34366 unsigned long bytes;
34367
34368- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34369+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34370 if (bytes != 0)
34371 return NULL;
34372
34373- fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
34374+ fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
34375
34376 oprofile_add_trace(bufhead[0].return_address);
34377
34378@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
34379 struct stack_frame bufhead[2];
34380 unsigned long bytes;
34381
34382- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34383+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34384 if (bytes != 0)
34385 return NULL;
34386
34387@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
34388 {
34389 struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
34390
34391- if (!user_mode_vm(regs)) {
34392+ if (!user_mode(regs)) {
34393 unsigned long stack = kernel_stack_pointer(regs);
34394 if (depth)
34395 dump_trace(NULL, regs, (unsigned long *)stack, 0,
34396diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
34397index 1d2e639..f6ef82a 100644
34398--- a/arch/x86/oprofile/nmi_int.c
34399+++ b/arch/x86/oprofile/nmi_int.c
34400@@ -23,6 +23,7 @@
34401 #include <asm/nmi.h>
34402 #include <asm/msr.h>
34403 #include <asm/apic.h>
34404+#include <asm/pgtable.h>
34405
34406 #include "op_counter.h"
34407 #include "op_x86_model.h"
34408@@ -785,8 +786,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
34409 if (ret)
34410 return ret;
34411
34412- if (!model->num_virt_counters)
34413- model->num_virt_counters = model->num_counters;
34414+ if (!model->num_virt_counters) {
34415+ pax_open_kernel();
34416+ *(unsigned int *)&model->num_virt_counters = model->num_counters;
34417+ pax_close_kernel();
34418+ }
34419
34420 mux_init(ops);
34421
34422diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
34423index 50d86c0..7985318 100644
34424--- a/arch/x86/oprofile/op_model_amd.c
34425+++ b/arch/x86/oprofile/op_model_amd.c
34426@@ -519,9 +519,11 @@ static int op_amd_init(struct oprofile_operations *ops)
34427 num_counters = AMD64_NUM_COUNTERS;
34428 }
34429
34430- op_amd_spec.num_counters = num_counters;
34431- op_amd_spec.num_controls = num_counters;
34432- op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34433+ pax_open_kernel();
34434+ *(unsigned int *)&op_amd_spec.num_counters = num_counters;
34435+ *(unsigned int *)&op_amd_spec.num_controls = num_counters;
34436+ *(unsigned int *)&op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34437+ pax_close_kernel();
34438
34439 return 0;
34440 }
34441diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
34442index d90528e..0127e2b 100644
34443--- a/arch/x86/oprofile/op_model_ppro.c
34444+++ b/arch/x86/oprofile/op_model_ppro.c
34445@@ -19,6 +19,7 @@
34446 #include <asm/msr.h>
34447 #include <asm/apic.h>
34448 #include <asm/nmi.h>
34449+#include <asm/pgtable.h>
34450
34451 #include "op_x86_model.h"
34452 #include "op_counter.h"
34453@@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
34454
34455 num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
34456
34457- op_arch_perfmon_spec.num_counters = num_counters;
34458- op_arch_perfmon_spec.num_controls = num_counters;
34459+ pax_open_kernel();
34460+ *(unsigned int *)&op_arch_perfmon_spec.num_counters = num_counters;
34461+ *(unsigned int *)&op_arch_perfmon_spec.num_controls = num_counters;
34462+ pax_close_kernel();
34463 }
34464
34465 static int arch_perfmon_init(struct oprofile_operations *ignore)
34466diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
34467index 71e8a67..6a313bb 100644
34468--- a/arch/x86/oprofile/op_x86_model.h
34469+++ b/arch/x86/oprofile/op_x86_model.h
34470@@ -52,7 +52,7 @@ struct op_x86_model_spec {
34471 void (*switch_ctrl)(struct op_x86_model_spec const *model,
34472 struct op_msrs const * const msrs);
34473 #endif
34474-};
34475+} __do_const;
34476
34477 struct op_counter_config;
34478
34479diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
34480index 852aa4c..71613f2 100644
34481--- a/arch/x86/pci/intel_mid_pci.c
34482+++ b/arch/x86/pci/intel_mid_pci.c
34483@@ -258,7 +258,7 @@ int __init intel_mid_pci_init(void)
34484 pci_mmcfg_late_init();
34485 pcibios_enable_irq = intel_mid_pci_irq_enable;
34486 pcibios_disable_irq = intel_mid_pci_irq_disable;
34487- pci_root_ops = intel_mid_pci_ops;
34488+ memcpy((void *)&pci_root_ops, &intel_mid_pci_ops, sizeof pci_root_ops);
34489 pci_soc_mode = 1;
34490 /* Continue with standard init */
34491 return 1;
34492diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
34493index 5dc6ca5..25c03f5 100644
34494--- a/arch/x86/pci/irq.c
34495+++ b/arch/x86/pci/irq.c
34496@@ -51,7 +51,7 @@ struct irq_router {
34497 struct irq_router_handler {
34498 u16 vendor;
34499 int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
34500-};
34501+} __do_const;
34502
34503 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
34504 void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq;
34505@@ -791,7 +791,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
34506 return 0;
34507 }
34508
34509-static __initdata struct irq_router_handler pirq_routers[] = {
34510+static __initconst const struct irq_router_handler pirq_routers[] = {
34511 { PCI_VENDOR_ID_INTEL, intel_router_probe },
34512 { PCI_VENDOR_ID_AL, ali_router_probe },
34513 { PCI_VENDOR_ID_ITE, ite_router_probe },
34514@@ -818,7 +818,7 @@ static struct pci_dev *pirq_router_dev;
34515 static void __init pirq_find_router(struct irq_router *r)
34516 {
34517 struct irq_routing_table *rt = pirq_table;
34518- struct irq_router_handler *h;
34519+ const struct irq_router_handler *h;
34520
34521 #ifdef CONFIG_PCI_BIOS
34522 if (!rt->signature) {
34523@@ -1091,7 +1091,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
34524 return 0;
34525 }
34526
34527-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
34528+static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
34529 {
34530 .callback = fix_broken_hp_bios_irq9,
34531 .ident = "HP Pavilion N5400 Series Laptop",
34532diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
34533index 9b83b90..4112152 100644
34534--- a/arch/x86/pci/pcbios.c
34535+++ b/arch/x86/pci/pcbios.c
34536@@ -79,7 +79,7 @@ union bios32 {
34537 static struct {
34538 unsigned long address;
34539 unsigned short segment;
34540-} bios32_indirect __initdata = { 0, __KERNEL_CS };
34541+} bios32_indirect __initconst = { 0, __PCIBIOS_CS };
34542
34543 /*
34544 * Returns the entry point for the given service, NULL on error
34545@@ -92,37 +92,80 @@ static unsigned long __init bios32_service(unsigned long service)
34546 unsigned long length; /* %ecx */
34547 unsigned long entry; /* %edx */
34548 unsigned long flags;
34549+ struct desc_struct d, *gdt;
34550
34551 local_irq_save(flags);
34552- __asm__("lcall *(%%edi); cld"
34553+
34554+ gdt = get_cpu_gdt_table(smp_processor_id());
34555+
34556+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
34557+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34558+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
34559+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34560+
34561+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
34562 : "=a" (return_code),
34563 "=b" (address),
34564 "=c" (length),
34565 "=d" (entry)
34566 : "0" (service),
34567 "1" (0),
34568- "D" (&bios32_indirect));
34569+ "D" (&bios32_indirect),
34570+ "r"(__PCIBIOS_DS)
34571+ : "memory");
34572+
34573+ pax_open_kernel();
34574+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
34575+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
34576+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
34577+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
34578+ pax_close_kernel();
34579+
34580 local_irq_restore(flags);
34581
34582 switch (return_code) {
34583- case 0:
34584- return address + entry;
34585- case 0x80: /* Not present */
34586- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
34587- return 0;
34588- default: /* Shouldn't happen */
34589- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
34590- service, return_code);
34591+ case 0: {
34592+ int cpu;
34593+ unsigned char flags;
34594+
34595+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
34596+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
34597+ printk(KERN_WARNING "bios32_service: not valid\n");
34598 return 0;
34599+ }
34600+ address = address + PAGE_OFFSET;
34601+ length += 16UL; /* some BIOSs underreport this... */
34602+ flags = 4;
34603+ if (length >= 64*1024*1024) {
34604+ length >>= PAGE_SHIFT;
34605+ flags |= 8;
34606+ }
34607+
34608+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
34609+ gdt = get_cpu_gdt_table(cpu);
34610+ pack_descriptor(&d, address, length, 0x9b, flags);
34611+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34612+ pack_descriptor(&d, address, length, 0x93, flags);
34613+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34614+ }
34615+ return entry;
34616+ }
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+ return 0;
34624 }
34625 }
34626
34627 static struct {
34628 unsigned long address;
34629 unsigned short segment;
34630-} pci_indirect = { 0, __KERNEL_CS };
34631+} pci_indirect __read_only = { 0, __PCIBIOS_CS };
34632
34633-static int pci_bios_present;
34634+static int pci_bios_present __read_only;
34635
34636 static int __init check_pcibios(void)
34637 {
34638@@ -131,11 +174,13 @@ static int __init check_pcibios(void)
34639 unsigned long flags, pcibios_entry;
34640
34641 if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
34642- pci_indirect.address = pcibios_entry + PAGE_OFFSET;
34643+ pci_indirect.address = pcibios_entry;
34644
34645 local_irq_save(flags);
34646- __asm__(
34647- "lcall *(%%edi); cld\n\t"
34648+ __asm__("movw %w6, %%ds\n\t"
34649+ "lcall *%%ss:(%%edi); cld\n\t"
34650+ "push %%ss\n\t"
34651+ "pop %%ds\n\t"
34652 "jc 1f\n\t"
34653 "xor %%ah, %%ah\n"
34654 "1:"
34655@@ -144,7 +189,8 @@ static int __init check_pcibios(void)
34656 "=b" (ebx),
34657 "=c" (ecx)
34658 : "1" (PCIBIOS_PCI_BIOS_PRESENT),
34659- "D" (&pci_indirect)
34660+ "D" (&pci_indirect),
34661+ "r" (__PCIBIOS_DS)
34662 : "memory");
34663 local_irq_restore(flags);
34664
34665@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34666
34667 switch (len) {
34668 case 1:
34669- __asm__("lcall *(%%esi); cld\n\t"
34670+ __asm__("movw %w6, %%ds\n\t"
34671+ "lcall *%%ss:(%%esi); cld\n\t"
34672+ "push %%ss\n\t"
34673+ "pop %%ds\n\t"
34674 "jc 1f\n\t"
34675 "xor %%ah, %%ah\n"
34676 "1:"
34677@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34678 : "1" (PCIBIOS_READ_CONFIG_BYTE),
34679 "b" (bx),
34680 "D" ((long)reg),
34681- "S" (&pci_indirect));
34682+ "S" (&pci_indirect),
34683+ "r" (__PCIBIOS_DS));
34684 /*
34685 * Zero-extend the result beyond 8 bits, do not trust the
34686 * BIOS having done it:
34687@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34688 *value &= 0xff;
34689 break;
34690 case 2:
34691- __asm__("lcall *(%%esi); cld\n\t"
34692+ __asm__("movw %w6, %%ds\n\t"
34693+ "lcall *%%ss:(%%esi); cld\n\t"
34694+ "push %%ss\n\t"
34695+ "pop %%ds\n\t"
34696 "jc 1f\n\t"
34697 "xor %%ah, %%ah\n"
34698 "1:"
34699@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34700 : "1" (PCIBIOS_READ_CONFIG_WORD),
34701 "b" (bx),
34702 "D" ((long)reg),
34703- "S" (&pci_indirect));
34704+ "S" (&pci_indirect),
34705+ "r" (__PCIBIOS_DS));
34706 /*
34707 * Zero-extend the result beyond 16 bits, do not trust the
34708 * BIOS having done it:
34709@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34710 *value &= 0xffff;
34711 break;
34712 case 4:
34713- __asm__("lcall *(%%esi); cld\n\t"
34714+ __asm__("movw %w6, %%ds\n\t"
34715+ "lcall *%%ss:(%%esi); cld\n\t"
34716+ "push %%ss\n\t"
34717+ "pop %%ds\n\t"
34718 "jc 1f\n\t"
34719 "xor %%ah, %%ah\n"
34720 "1:"
34721@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34722 : "1" (PCIBIOS_READ_CONFIG_DWORD),
34723 "b" (bx),
34724 "D" ((long)reg),
34725- "S" (&pci_indirect));
34726+ "S" (&pci_indirect),
34727+ "r" (__PCIBIOS_DS));
34728 break;
34729 }
34730
34731@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34732
34733 switch (len) {
34734 case 1:
34735- __asm__("lcall *(%%esi); cld\n\t"
34736+ __asm__("movw %w6, %%ds\n\t"
34737+ "lcall *%%ss:(%%esi); cld\n\t"
34738+ "push %%ss\n\t"
34739+ "pop %%ds\n\t"
34740 "jc 1f\n\t"
34741 "xor %%ah, %%ah\n"
34742 "1:"
34743@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34744 "c" (value),
34745 "b" (bx),
34746 "D" ((long)reg),
34747- "S" (&pci_indirect));
34748+ "S" (&pci_indirect),
34749+ "r" (__PCIBIOS_DS));
34750 break;
34751 case 2:
34752- __asm__("lcall *(%%esi); cld\n\t"
34753+ __asm__("movw %w6, %%ds\n\t"
34754+ "lcall *%%ss:(%%esi); cld\n\t"
34755+ "push %%ss\n\t"
34756+ "pop %%ds\n\t"
34757 "jc 1f\n\t"
34758 "xor %%ah, %%ah\n"
34759 "1:"
34760@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34761 "c" (value),
34762 "b" (bx),
34763 "D" ((long)reg),
34764- "S" (&pci_indirect));
34765+ "S" (&pci_indirect),
34766+ "r" (__PCIBIOS_DS));
34767 break;
34768 case 4:
34769- __asm__("lcall *(%%esi); cld\n\t"
34770+ __asm__("movw %w6, %%ds\n\t"
34771+ "lcall *%%ss:(%%esi); cld\n\t"
34772+ "push %%ss\n\t"
34773+ "pop %%ds\n\t"
34774 "jc 1f\n\t"
34775 "xor %%ah, %%ah\n"
34776 "1:"
34777@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34778 "c" (value),
34779 "b" (bx),
34780 "D" ((long)reg),
34781- "S" (&pci_indirect));
34782+ "S" (&pci_indirect),
34783+ "r" (__PCIBIOS_DS));
34784 break;
34785 }
34786
34787@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34788
34789 DBG("PCI: Fetching IRQ routing table... ");
34790 __asm__("push %%es\n\t"
34791+ "movw %w8, %%ds\n\t"
34792 "push %%ds\n\t"
34793 "pop %%es\n\t"
34794- "lcall *(%%esi); cld\n\t"
34795+ "lcall *%%ss:(%%esi); cld\n\t"
34796 "pop %%es\n\t"
34797+ "push %%ss\n\t"
34798+ "pop %%ds\n"
34799 "jc 1f\n\t"
34800 "xor %%ah, %%ah\n"
34801 "1:"
34802@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34803 "1" (0),
34804 "D" ((long) &opt),
34805 "S" (&pci_indirect),
34806- "m" (opt)
34807+ "m" (opt),
34808+ "r" (__PCIBIOS_DS)
34809 : "memory");
34810 DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
34811 if (ret & 0xff00)
34812@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34813 {
34814 int ret;
34815
34816- __asm__("lcall *(%%esi); cld\n\t"
34817+ __asm__("movw %w5, %%ds\n\t"
34818+ "lcall *%%ss:(%%esi); cld\n\t"
34819+ "push %%ss\n\t"
34820+ "pop %%ds\n"
34821 "jc 1f\n\t"
34822 "xor %%ah, %%ah\n"
34823 "1:"
34824@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34825 : "0" (PCIBIOS_SET_PCI_HW_INT),
34826 "b" ((dev->bus->number << 8) | dev->devfn),
34827 "c" ((irq << 8) | (pin + 10)),
34828- "S" (&pci_indirect));
34829+ "S" (&pci_indirect),
34830+ "r" (__PCIBIOS_DS));
34831 return !(ret & 0xff00);
34832 }
34833 EXPORT_SYMBOL(pcibios_set_irq_routing);
34834diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
34835index 40e7cda..c7e6672 100644
34836--- a/arch/x86/platform/efi/efi_32.c
34837+++ b/arch/x86/platform/efi/efi_32.c
34838@@ -61,11 +61,22 @@ void __init efi_call_phys_prolog(void)
34839 {
34840 struct desc_ptr gdt_descr;
34841
34842+#ifdef CONFIG_PAX_KERNEXEC
34843+ struct desc_struct d;
34844+#endif
34845+
34846 local_irq_save(efi_rt_eflags);
34847
34848 load_cr3(initial_page_table);
34849 __flush_tlb_all();
34850
34851+#ifdef CONFIG_PAX_KERNEXEC
34852+ pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
34853+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34854+ pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
34855+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34856+#endif
34857+
34858 gdt_descr.address = __pa(get_cpu_gdt_table(0));
34859 gdt_descr.size = GDT_SIZE - 1;
34860 load_gdt(&gdt_descr);
34861@@ -75,11 +86,24 @@ void __init efi_call_phys_epilog(void)
34862 {
34863 struct desc_ptr gdt_descr;
34864
34865+#ifdef CONFIG_PAX_KERNEXEC
34866+ struct desc_struct d;
34867+
34868+ memset(&d, 0, sizeof d);
34869+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34870+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34871+#endif
34872+
34873 gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
34874 gdt_descr.size = GDT_SIZE - 1;
34875 load_gdt(&gdt_descr);
34876
34877+#ifdef CONFIG_PAX_PER_CPU_PGD
34878+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34879+#else
34880 load_cr3(swapper_pg_dir);
34881+#endif
34882+
34883 __flush_tlb_all();
34884
34885 local_irq_restore(efi_rt_eflags);
34886diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
34887index 17e80d8..9fa6e41 100644
34888--- a/arch/x86/platform/efi/efi_64.c
34889+++ b/arch/x86/platform/efi/efi_64.c
34890@@ -98,6 +98,11 @@ void __init efi_call_phys_prolog(void)
34891 vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
34892 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
34893 }
34894+
34895+#ifdef CONFIG_PAX_PER_CPU_PGD
34896+ load_cr3(swapper_pg_dir);
34897+#endif
34898+
34899 __flush_tlb_all();
34900 }
34901
34902@@ -115,6 +120,11 @@ void __init efi_call_phys_epilog(void)
34903 for (pgd = 0; pgd < n_pgds; pgd++)
34904 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
34905 kfree(save_pgd);
34906+
34907+#ifdef CONFIG_PAX_PER_CPU_PGD
34908+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34909+#endif
34910+
34911 __flush_tlb_all();
34912 local_irq_restore(efi_flags);
34913 early_code_mapping_set_exec(0);
34914@@ -145,8 +155,23 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
34915 unsigned npages;
34916 pgd_t *pgd;
34917
34918- if (efi_enabled(EFI_OLD_MEMMAP))
34919+ if (efi_enabled(EFI_OLD_MEMMAP)) {
34920+ /* PaX: We need to disable the NX bit in the PGD, otherwise we won't be
34921+ * able to execute the EFI services.
34922+ */
34923+ if (__supported_pte_mask & _PAGE_NX) {
34924+ unsigned long addr = (unsigned long) __va(0);
34925+ pgd_t pe = __pgd(pgd_val(*pgd_offset_k(addr)) & ~_PAGE_NX);
34926+
34927+ pr_alert("PAX: Disabling NX protection for low memory map. Try booting without \"efi=old_map\"\n");
34928+#ifdef CONFIG_PAX_PER_CPU_PGD
34929+ set_pgd(pgd_offset_cpu(0, kernel, addr), pe);
34930+#endif
34931+ set_pgd(pgd_offset_k(addr), pe);
34932+ }
34933+
34934 return 0;
34935+ }
34936
34937 efi_scratch.efi_pgt = (pgd_t *)(unsigned long)real_mode_header->trampoline_pgd;
34938 pgd = __va(efi_scratch.efi_pgt);
34939diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
34940index 040192b..7d3300f 100644
34941--- a/arch/x86/platform/efi/efi_stub_32.S
34942+++ b/arch/x86/platform/efi/efi_stub_32.S
34943@@ -6,7 +6,9 @@
34944 */
34945
34946 #include <linux/linkage.h>
34947+#include <linux/init.h>
34948 #include <asm/page_types.h>
34949+#include <asm/segment.h>
34950
34951 /*
34952 * efi_call_phys(void *, ...) is a function with variable parameters.
34953@@ -20,7 +22,7 @@
34954 * service functions will comply with gcc calling convention, too.
34955 */
34956
34957-.text
34958+__INIT
34959 ENTRY(efi_call_phys)
34960 /*
34961 * 0. The function can only be called in Linux kernel. So CS has been
34962@@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
34963 * The mapping of lower virtual memory has been created in prolog and
34964 * epilog.
34965 */
34966- movl $1f, %edx
34967- subl $__PAGE_OFFSET, %edx
34968- jmp *%edx
34969+#ifdef CONFIG_PAX_KERNEXEC
34970+ movl $(__KERNEXEC_EFI_DS), %edx
34971+ mov %edx, %ds
34972+ mov %edx, %es
34973+ mov %edx, %ss
34974+ addl $2f,(1f)
34975+ ljmp *(1f)
34976+
34977+__INITDATA
34978+1: .long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
34979+.previous
34980+
34981+2:
34982+ subl $2b,(1b)
34983+#else
34984+ jmp 1f-__PAGE_OFFSET
34985 1:
34986+#endif
34987
34988 /*
34989 * 2. Now on the top of stack is the return
34990@@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
34991 * parameter 2, ..., param n. To make things easy, we save the return
34992 * address of efi_call_phys in a global variable.
34993 */
34994- popl %edx
34995- movl %edx, saved_return_addr
34996- /* get the function pointer into ECX*/
34997- popl %ecx
34998- movl %ecx, efi_rt_function_ptr
34999- movl $2f, %edx
35000- subl $__PAGE_OFFSET, %edx
35001- pushl %edx
35002+ popl (saved_return_addr)
35003+ popl (efi_rt_function_ptr)
35004
35005 /*
35006 * 3. Clear PG bit in %CR0.
35007@@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
35008 /*
35009 * 5. Call the physical function.
35010 */
35011- jmp *%ecx
35012+ call *(efi_rt_function_ptr-__PAGE_OFFSET)
35013
35014-2:
35015 /*
35016 * 6. After EFI runtime service returns, control will return to
35017 * following instruction. We'd better readjust stack pointer first.
35018@@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
35019 movl %cr0, %edx
35020 orl $0x80000000, %edx
35021 movl %edx, %cr0
35022- jmp 1f
35023-1:
35024+
35025 /*
35026 * 8. Now restore the virtual mode from flat mode by
35027 * adding EIP with PAGE_OFFSET.
35028 */
35029- movl $1f, %edx
35030- jmp *%edx
35031+#ifdef CONFIG_PAX_KERNEXEC
35032+ movl $(__KERNEL_DS), %edx
35033+ mov %edx, %ds
35034+ mov %edx, %es
35035+ mov %edx, %ss
35036+ ljmp $(__KERNEL_CS),$1f
35037+#else
35038+ jmp 1f+__PAGE_OFFSET
35039+#endif
35040 1:
35041
35042 /*
35043 * 9. Balance the stack. And because EAX contain the return value,
35044 * we'd better not clobber it.
35045 */
35046- leal efi_rt_function_ptr, %edx
35047- movl (%edx), %ecx
35048- pushl %ecx
35049+ pushl (efi_rt_function_ptr)
35050
35051 /*
35052- * 10. Push the saved return address onto the stack and return.
35053+ * 10. Return to the saved return address.
35054 */
35055- leal saved_return_addr, %edx
35056- movl (%edx), %ecx
35057- pushl %ecx
35058- ret
35059+ jmpl *(saved_return_addr)
35060 ENDPROC(efi_call_phys)
35061 .previous
35062
35063-.data
35064+__INITDATA
35065 saved_return_addr:
35066 .long 0
35067 efi_rt_function_ptr:
35068diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
35069index 86d0f9e..6d499f4 100644
35070--- a/arch/x86/platform/efi/efi_stub_64.S
35071+++ b/arch/x86/platform/efi/efi_stub_64.S
35072@@ -11,6 +11,7 @@
35073 #include <asm/msr.h>
35074 #include <asm/processor-flags.h>
35075 #include <asm/page_types.h>
35076+#include <asm/alternative-asm.h>
35077
35078 #define SAVE_XMM \
35079 mov %rsp, %rax; \
35080@@ -88,6 +89,7 @@ ENTRY(efi_call)
35081 RESTORE_PGT
35082 addq $48, %rsp
35083 RESTORE_XMM
35084+ pax_force_retaddr 0, 1
35085 ret
35086 ENDPROC(efi_call)
35087
35088diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
35089index 3005f0c..d06aeb0 100644
35090--- a/arch/x86/platform/intel-mid/intel-mid.c
35091+++ b/arch/x86/platform/intel-mid/intel-mid.c
35092@@ -63,7 +63,7 @@ enum intel_mid_timer_options intel_mid_timer_options;
35093 /* intel_mid_ops to store sub arch ops */
35094 struct intel_mid_ops *intel_mid_ops;
35095 /* getter function for sub arch ops*/
35096-static void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
35097+static const void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
35098 enum intel_mid_cpu_type __intel_mid_cpu_chip;
35099 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
35100
35101@@ -71,9 +71,10 @@ static void intel_mid_power_off(void)
35102 {
35103 };
35104
35105-static void intel_mid_reboot(void)
35106+static void __noreturn intel_mid_reboot(void)
35107 {
35108 intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
35109+ BUG();
35110 }
35111
35112 static unsigned long __init intel_mid_calibrate_tsc(void)
35113diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35114index 3c1c386..59a68ed 100644
35115--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35116+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35117@@ -13,6 +13,6 @@
35118 /* For every CPU addition a new get_<cpuname>_ops interface needs
35119 * to be added.
35120 */
35121-extern void *get_penwell_ops(void);
35122-extern void *get_cloverview_ops(void);
35123-extern void *get_tangier_ops(void);
35124+extern const void *get_penwell_ops(void);
35125+extern const void *get_cloverview_ops(void);
35126+extern const void *get_tangier_ops(void);
35127diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
35128index 23381d2..8ddc10e 100644
35129--- a/arch/x86/platform/intel-mid/mfld.c
35130+++ b/arch/x86/platform/intel-mid/mfld.c
35131@@ -64,12 +64,12 @@ static void __init penwell_arch_setup(void)
35132 pm_power_off = mfld_power_off;
35133 }
35134
35135-void *get_penwell_ops(void)
35136+const void *get_penwell_ops(void)
35137 {
35138 return &penwell_ops;
35139 }
35140
35141-void *get_cloverview_ops(void)
35142+const void *get_cloverview_ops(void)
35143 {
35144 return &penwell_ops;
35145 }
35146diff --git a/arch/x86/platform/intel-mid/mrfl.c b/arch/x86/platform/intel-mid/mrfl.c
35147index aaca917..66eadbc 100644
35148--- a/arch/x86/platform/intel-mid/mrfl.c
35149+++ b/arch/x86/platform/intel-mid/mrfl.c
35150@@ -97,7 +97,7 @@ static struct intel_mid_ops tangier_ops = {
35151 .arch_setup = tangier_arch_setup,
35152 };
35153
35154-void *get_tangier_ops(void)
35155+const void *get_tangier_ops(void)
35156 {
35157 return &tangier_ops;
35158 }
35159diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
35160index c9a0838..fae0977 100644
35161--- a/arch/x86/platform/intel-quark/imr_selftest.c
35162+++ b/arch/x86/platform/intel-quark/imr_selftest.c
35163@@ -54,7 +54,7 @@ static void __init imr_self_test_result(int res, const char *fmt, ...)
35164 */
35165 static void __init imr_self_test(void)
35166 {
35167- phys_addr_t base = virt_to_phys(&_text);
35168+ phys_addr_t base = virt_to_phys(ktla_ktva(_text));
35169 size_t size = virt_to_phys(&__end_rodata) - base;
35170 const char *fmt_over = "overlapped IMR @ (0x%08lx - 0x%08lx)\n";
35171 int ret;
35172diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
35173index d6ee929..3637cb5 100644
35174--- a/arch/x86/platform/olpc/olpc_dt.c
35175+++ b/arch/x86/platform/olpc/olpc_dt.c
35176@@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
35177 return res;
35178 }
35179
35180-static struct of_pdt_ops prom_olpc_ops __initdata = {
35181+static struct of_pdt_ops prom_olpc_ops __initconst = {
35182 .nextprop = olpc_dt_nextprop,
35183 .getproplen = olpc_dt_getproplen,
35184 .getproperty = olpc_dt_getproperty,
35185diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
35186index 3e32ed5..cc0adc5 100644
35187--- a/arch/x86/power/cpu.c
35188+++ b/arch/x86/power/cpu.c
35189@@ -134,11 +134,8 @@ static void do_fpu_end(void)
35190 static void fix_processor_context(void)
35191 {
35192 int cpu = smp_processor_id();
35193- struct tss_struct *t = &per_cpu(init_tss, cpu);
35194-#ifdef CONFIG_X86_64
35195- struct desc_struct *desc = get_cpu_gdt_table(cpu);
35196- tss_desc tss;
35197-#endif
35198+ struct tss_struct *t = init_tss + cpu;
35199+
35200 set_tss_desc(cpu, t); /*
35201 * This just modifies memory; should not be
35202 * necessary. But... This is necessary, because
35203@@ -147,10 +144,6 @@ static void fix_processor_context(void)
35204 */
35205
35206 #ifdef CONFIG_X86_64
35207- memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
35208- tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
35209- write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
35210-
35211 syscall_init(); /* This sets MSR_*STAR and related */
35212 #endif
35213 load_TR_desc(); /* This does ltr */
35214diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
35215index 0b7a63d..0d0f2c2 100644
35216--- a/arch/x86/realmode/init.c
35217+++ b/arch/x86/realmode/init.c
35218@@ -68,7 +68,13 @@ void __init setup_real_mode(void)
35219 __va(real_mode_header->trampoline_header);
35220
35221 #ifdef CONFIG_X86_32
35222- trampoline_header->start = __pa_symbol(startup_32_smp);
35223+ trampoline_header->start = __pa_symbol(ktla_ktva(startup_32_smp));
35224+
35225+#ifdef CONFIG_PAX_KERNEXEC
35226+ trampoline_header->start -= LOAD_PHYSICAL_ADDR;
35227+#endif
35228+
35229+ trampoline_header->boot_cs = __BOOT_CS;
35230 trampoline_header->gdt_limit = __BOOT_DS + 7;
35231 trampoline_header->gdt_base = __pa_symbol(boot_gdt);
35232 #else
35233@@ -84,7 +90,7 @@ void __init setup_real_mode(void)
35234 *trampoline_cr4_features = __read_cr4();
35235
35236 trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
35237- trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
35238+ trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
35239 trampoline_pgd[511] = init_level4_pgt[511].pgd;
35240 #endif
35241 }
35242diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
35243index 2730d77..2e4cd19 100644
35244--- a/arch/x86/realmode/rm/Makefile
35245+++ b/arch/x86/realmode/rm/Makefile
35246@@ -68,5 +68,8 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
35247
35248 KBUILD_CFLAGS := $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
35249 -I$(srctree)/arch/x86/boot
35250+ifdef CONSTIFY_PLUGIN
35251+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
35252+endif
35253 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
35254 GCOV_PROFILE := n
35255diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
35256index a28221d..93c40f1 100644
35257--- a/arch/x86/realmode/rm/header.S
35258+++ b/arch/x86/realmode/rm/header.S
35259@@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
35260 #endif
35261 /* APM/BIOS reboot */
35262 .long pa_machine_real_restart_asm
35263-#ifdef CONFIG_X86_64
35264+#ifdef CONFIG_X86_32
35265+ .long __KERNEL_CS
35266+#else
35267 .long __KERNEL32_CS
35268 #endif
35269 END(real_mode_header)
35270diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
35271index d66c607..3def845 100644
35272--- a/arch/x86/realmode/rm/reboot.S
35273+++ b/arch/x86/realmode/rm/reboot.S
35274@@ -27,6 +27,10 @@ ENTRY(machine_real_restart_asm)
35275 lgdtl pa_tr_gdt
35276
35277 /* Disable paging to drop us out of long mode */
35278+ movl %cr4, %eax
35279+ andl $~X86_CR4_PCIDE, %eax
35280+ movl %eax, %cr4
35281+
35282 movl %cr0, %eax
35283 andl $~X86_CR0_PG, %eax
35284 movl %eax, %cr0
35285diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
35286index 48ddd76..c26749f 100644
35287--- a/arch/x86/realmode/rm/trampoline_32.S
35288+++ b/arch/x86/realmode/rm/trampoline_32.S
35289@@ -24,6 +24,12 @@
35290 #include <asm/page_types.h>
35291 #include "realmode.h"
35292
35293+#ifdef CONFIG_PAX_KERNEXEC
35294+#define ta(X) (X)
35295+#else
35296+#define ta(X) (pa_ ## X)
35297+#endif
35298+
35299 .text
35300 .code16
35301
35302@@ -38,8 +44,6 @@ ENTRY(trampoline_start)
35303
35304 cli # We should be safe anyway
35305
35306- movl tr_start, %eax # where we need to go
35307-
35308 movl $0xA5A5A5A5, trampoline_status
35309 # write marker for master knows we're running
35310
35311@@ -55,7 +59,7 @@ ENTRY(trampoline_start)
35312 movw $1, %dx # protected mode (PE) bit
35313 lmsw %dx # into protected mode
35314
35315- ljmpl $__BOOT_CS, $pa_startup_32
35316+ ljmpl *(trampoline_header)
35317
35318 .section ".text32","ax"
35319 .code32
35320@@ -66,7 +70,7 @@ ENTRY(startup_32) # note: also used from wakeup_asm.S
35321 .balign 8
35322 GLOBAL(trampoline_header)
35323 tr_start: .space 4
35324- tr_gdt_pad: .space 2
35325+ tr_boot_cs: .space 2
35326 tr_gdt: .space 6
35327 END(trampoline_header)
35328
35329diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
35330index dac7b20..72dbaca 100644
35331--- a/arch/x86/realmode/rm/trampoline_64.S
35332+++ b/arch/x86/realmode/rm/trampoline_64.S
35333@@ -93,6 +93,7 @@ ENTRY(startup_32)
35334 movl %edx, %gs
35335
35336 movl pa_tr_cr4, %eax
35337+ andl $~X86_CR4_PCIDE, %eax
35338 movl %eax, %cr4 # Enable PAE mode
35339
35340 # Setup trampoline 4 level pagetables
35341@@ -106,7 +107,7 @@ ENTRY(startup_32)
35342 wrmsr
35343
35344 # Enable paging and in turn activate Long Mode
35345- movl $(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
35346+ movl $(X86_CR0_PG | X86_CR0_PE), %eax
35347 movl %eax, %cr0
35348
35349 /*
35350diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
35351index 9e7e147..25a4158 100644
35352--- a/arch/x86/realmode/rm/wakeup_asm.S
35353+++ b/arch/x86/realmode/rm/wakeup_asm.S
35354@@ -126,11 +126,10 @@ ENTRY(wakeup_start)
35355 lgdtl pmode_gdt
35356
35357 /* This really couldn't... */
35358- movl pmode_entry, %eax
35359 movl pmode_cr0, %ecx
35360 movl %ecx, %cr0
35361- ljmpl $__KERNEL_CS, $pa_startup_32
35362- /* -> jmp *%eax in trampoline_32.S */
35363+
35364+ ljmpl *pmode_entry
35365 #else
35366 jmp trampoline_start
35367 #endif
35368diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
35369index 604a37e..e49702a 100644
35370--- a/arch/x86/tools/Makefile
35371+++ b/arch/x86/tools/Makefile
35372@@ -37,7 +37,7 @@ $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/in
35373
35374 $(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 $(objtree)/arch/x86/lib/inat-tables.c
35375
35376-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
35377+HOST_EXTRACFLAGS += -I$(srctree)/tools/include -ggdb
35378 hostprogs-y += relocs
35379 relocs-objs := relocs_32.o relocs_64.o relocs_common.o
35380 PHONY += relocs
35381diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
35382index 0c2fae8..88036b7 100644
35383--- a/arch/x86/tools/relocs.c
35384+++ b/arch/x86/tools/relocs.c
35385@@ -1,5 +1,7 @@
35386 /* This is included from relocs_32/64.c */
35387
35388+#include "../../../include/generated/autoconf.h"
35389+
35390 #define ElfW(type) _ElfW(ELF_BITS, type)
35391 #define _ElfW(bits, type) __ElfW(bits, type)
35392 #define __ElfW(bits, type) Elf##bits##_##type
35393@@ -11,6 +13,7 @@
35394 #define Elf_Sym ElfW(Sym)
35395
35396 static Elf_Ehdr ehdr;
35397+static Elf_Phdr *phdr;
35398
35399 struct relocs {
35400 uint32_t *offset;
35401@@ -386,9 +389,39 @@ static void read_ehdr(FILE *fp)
35402 }
35403 }
35404
35405+static void read_phdrs(FILE *fp)
35406+{
35407+ unsigned int i;
35408+
35409+ phdr = calloc(ehdr.e_phnum, sizeof(Elf_Phdr));
35410+ if (!phdr) {
35411+ die("Unable to allocate %d program headers\n",
35412+ ehdr.e_phnum);
35413+ }
35414+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
35415+ die("Seek to %d failed: %s\n",
35416+ ehdr.e_phoff, strerror(errno));
35417+ }
35418+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
35419+ die("Cannot read ELF program headers: %s\n",
35420+ strerror(errno));
35421+ }
35422+ for(i = 0; i < ehdr.e_phnum; i++) {
35423+ phdr[i].p_type = elf_word_to_cpu(phdr[i].p_type);
35424+ phdr[i].p_offset = elf_off_to_cpu(phdr[i].p_offset);
35425+ phdr[i].p_vaddr = elf_addr_to_cpu(phdr[i].p_vaddr);
35426+ phdr[i].p_paddr = elf_addr_to_cpu(phdr[i].p_paddr);
35427+ phdr[i].p_filesz = elf_word_to_cpu(phdr[i].p_filesz);
35428+ phdr[i].p_memsz = elf_word_to_cpu(phdr[i].p_memsz);
35429+ phdr[i].p_flags = elf_word_to_cpu(phdr[i].p_flags);
35430+ phdr[i].p_align = elf_word_to_cpu(phdr[i].p_align);
35431+ }
35432+
35433+}
35434+
35435 static void read_shdrs(FILE *fp)
35436 {
35437- int i;
35438+ unsigned int i;
35439 Elf_Shdr shdr;
35440
35441 secs = calloc(ehdr.e_shnum, sizeof(struct section));
35442@@ -423,7 +456,7 @@ static void read_shdrs(FILE *fp)
35443
35444 static void read_strtabs(FILE *fp)
35445 {
35446- int i;
35447+ unsigned int i;
35448 for (i = 0; i < ehdr.e_shnum; i++) {
35449 struct section *sec = &secs[i];
35450 if (sec->shdr.sh_type != SHT_STRTAB) {
35451@@ -448,7 +481,7 @@ static void read_strtabs(FILE *fp)
35452
35453 static void read_symtabs(FILE *fp)
35454 {
35455- int i,j;
35456+ unsigned int i,j;
35457 for (i = 0; i < ehdr.e_shnum; i++) {
35458 struct section *sec = &secs[i];
35459 if (sec->shdr.sh_type != SHT_SYMTAB) {
35460@@ -479,9 +512,11 @@ static void read_symtabs(FILE *fp)
35461 }
35462
35463
35464-static void read_relocs(FILE *fp)
35465+static void read_relocs(FILE *fp, int use_real_mode)
35466 {
35467- int i,j;
35468+ unsigned int i,j;
35469+ uint32_t base;
35470+
35471 for (i = 0; i < ehdr.e_shnum; i++) {
35472 struct section *sec = &secs[i];
35473 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35474@@ -501,9 +536,22 @@ static void read_relocs(FILE *fp)
35475 die("Cannot read symbol table: %s\n",
35476 strerror(errno));
35477 }
35478+ base = 0;
35479+
35480+#ifdef CONFIG_X86_32
35481+ for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
35482+ if (phdr[j].p_type != PT_LOAD )
35483+ continue;
35484+ 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)
35485+ continue;
35486+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
35487+ break;
35488+ }
35489+#endif
35490+
35491 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
35492 Elf_Rel *rel = &sec->reltab[j];
35493- rel->r_offset = elf_addr_to_cpu(rel->r_offset);
35494+ rel->r_offset = elf_addr_to_cpu(rel->r_offset) + base;
35495 rel->r_info = elf_xword_to_cpu(rel->r_info);
35496 #if (SHT_REL_TYPE == SHT_RELA)
35497 rel->r_addend = elf_xword_to_cpu(rel->r_addend);
35498@@ -515,7 +563,7 @@ static void read_relocs(FILE *fp)
35499
35500 static void print_absolute_symbols(void)
35501 {
35502- int i;
35503+ unsigned int i;
35504 const char *format;
35505
35506 if (ELF_BITS == 64)
35507@@ -528,7 +576,7 @@ static void print_absolute_symbols(void)
35508 for (i = 0; i < ehdr.e_shnum; i++) {
35509 struct section *sec = &secs[i];
35510 char *sym_strtab;
35511- int j;
35512+ unsigned int j;
35513
35514 if (sec->shdr.sh_type != SHT_SYMTAB) {
35515 continue;
35516@@ -555,7 +603,7 @@ static void print_absolute_symbols(void)
35517
35518 static void print_absolute_relocs(void)
35519 {
35520- int i, printed = 0;
35521+ unsigned int i, printed = 0;
35522 const char *format;
35523
35524 if (ELF_BITS == 64)
35525@@ -568,7 +616,7 @@ static void print_absolute_relocs(void)
35526 struct section *sec_applies, *sec_symtab;
35527 char *sym_strtab;
35528 Elf_Sym *sh_symtab;
35529- int j;
35530+ unsigned int j;
35531 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35532 continue;
35533 }
35534@@ -645,13 +693,13 @@ static void add_reloc(struct relocs *r, uint32_t offset)
35535 static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
35536 Elf_Sym *sym, const char *symname))
35537 {
35538- int i;
35539+ unsigned int i;
35540 /* Walk through the relocations */
35541 for (i = 0; i < ehdr.e_shnum; i++) {
35542 char *sym_strtab;
35543 Elf_Sym *sh_symtab;
35544 struct section *sec_applies, *sec_symtab;
35545- int j;
35546+ unsigned int j;
35547 struct section *sec = &secs[i];
35548
35549 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35550@@ -830,6 +878,23 @@ static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35551 {
35552 unsigned r_type = ELF32_R_TYPE(rel->r_info);
35553 int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
35554+ char *sym_strtab = sec->link->link->strtab;
35555+
35556+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
35557+ if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
35558+ return 0;
35559+
35560+#ifdef CONFIG_PAX_KERNEXEC
35561+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
35562+ if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
35563+ return 0;
35564+ if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
35565+ return 0;
35566+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
35567+ return 0;
35568+ if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
35569+ return 0;
35570+#endif
35571
35572 switch (r_type) {
35573 case R_386_NONE:
35574@@ -968,7 +1033,7 @@ static int write32_as_text(uint32_t v, FILE *f)
35575
35576 static void emit_relocs(int as_text, int use_real_mode)
35577 {
35578- int i;
35579+ unsigned int i;
35580 int (*write_reloc)(uint32_t, FILE *) = write32;
35581 int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35582 const char *symname);
35583@@ -1078,10 +1143,11 @@ void process(FILE *fp, int use_real_mode, int as_text,
35584 {
35585 regex_init(use_real_mode);
35586 read_ehdr(fp);
35587+ read_phdrs(fp);
35588 read_shdrs(fp);
35589 read_strtabs(fp);
35590 read_symtabs(fp);
35591- read_relocs(fp);
35592+ read_relocs(fp, use_real_mode);
35593 if (ELF_BITS == 64)
35594 percpu_init();
35595 if (show_absolute_syms) {
35596diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c
35597index f40281e..92728c9 100644
35598--- a/arch/x86/um/mem_32.c
35599+++ b/arch/x86/um/mem_32.c
35600@@ -21,7 +21,7 @@ static int __init gate_vma_init(void)
35601 gate_vma.vm_start = FIXADDR_USER_START;
35602 gate_vma.vm_end = FIXADDR_USER_END;
35603 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
35604- gate_vma.vm_page_prot = __P101;
35605+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
35606
35607 return 0;
35608 }
35609diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
35610index 80ffa5b..a33bd15 100644
35611--- a/arch/x86/um/tls_32.c
35612+++ b/arch/x86/um/tls_32.c
35613@@ -260,7 +260,7 @@ out:
35614 if (unlikely(task == current &&
35615 !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
35616 printk(KERN_ERR "get_tls_entry: task with pid %d got here "
35617- "without flushed TLS.", current->pid);
35618+ "without flushed TLS.", task_pid_nr(current));
35619 }
35620
35621 return 0;
35622diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
35623index 7b9be98..39bb57f 100644
35624--- a/arch/x86/vdso/Makefile
35625+++ b/arch/x86/vdso/Makefile
35626@@ -175,7 +175,7 @@ quiet_cmd_vdso = VDSO $@
35627 -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
35628 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
35629
35630-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35631+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35632 $(call cc-ldoption, -Wl$(comma)--build-id) -Wl,-Bsymbolic $(LTO_CFLAGS)
35633 GCOV_PROFILE := n
35634
35635diff --git a/arch/x86/vdso/vdso2c.h b/arch/x86/vdso/vdso2c.h
35636index 0224987..c7d65a5 100644
35637--- a/arch/x86/vdso/vdso2c.h
35638+++ b/arch/x86/vdso/vdso2c.h
35639@@ -12,7 +12,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
35640 unsigned long load_size = -1; /* Work around bogus warning */
35641 unsigned long mapping_size;
35642 ELF(Ehdr) *hdr = (ELF(Ehdr) *)raw_addr;
35643- int i;
35644+ unsigned int i;
35645 unsigned long j;
35646 ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr,
35647 *alt_sec = NULL;
35648diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
35649index e904c27..b9eaa03 100644
35650--- a/arch/x86/vdso/vdso32-setup.c
35651+++ b/arch/x86/vdso/vdso32-setup.c
35652@@ -14,6 +14,7 @@
35653 #include <asm/cpufeature.h>
35654 #include <asm/processor.h>
35655 #include <asm/vdso.h>
35656+#include <asm/mman.h>
35657
35658 #ifdef CONFIG_COMPAT_VDSO
35659 #define VDSO_DEFAULT 0
35660diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
35661index 1c9f750..cfddb1a 100644
35662--- a/arch/x86/vdso/vma.c
35663+++ b/arch/x86/vdso/vma.c
35664@@ -19,10 +19,7 @@
35665 #include <asm/page.h>
35666 #include <asm/hpet.h>
35667 #include <asm/desc.h>
35668-
35669-#if defined(CONFIG_X86_64)
35670-unsigned int __read_mostly vdso64_enabled = 1;
35671-#endif
35672+#include <asm/mman.h>
35673
35674 void __init init_vdso_image(const struct vdso_image *image)
35675 {
35676@@ -101,6 +98,11 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35677 .pages = no_pages,
35678 };
35679
35680+#ifdef CONFIG_PAX_RANDMMAP
35681+ if (mm->pax_flags & MF_PAX_RANDMMAP)
35682+ calculate_addr = false;
35683+#endif
35684+
35685 if (calculate_addr) {
35686 addr = vdso_addr(current->mm->start_stack,
35687 image->size - image->sym_vvar_start);
35688@@ -111,14 +113,14 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35689 down_write(&mm->mmap_sem);
35690
35691 addr = get_unmapped_area(NULL, addr,
35692- image->size - image->sym_vvar_start, 0, 0);
35693+ image->size - image->sym_vvar_start, 0, MAP_EXECUTABLE);
35694 if (IS_ERR_VALUE(addr)) {
35695 ret = addr;
35696 goto up_fail;
35697 }
35698
35699 text_start = addr - image->sym_vvar_start;
35700- current->mm->context.vdso = (void __user *)text_start;
35701+ mm->context.vdso = text_start;
35702
35703 /*
35704 * MAYWRITE to allow gdb to COW and set breakpoints
35705@@ -163,15 +165,12 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35706 hpet_address >> PAGE_SHIFT,
35707 PAGE_SIZE,
35708 pgprot_noncached(PAGE_READONLY));
35709-
35710- if (ret)
35711- goto up_fail;
35712 }
35713 #endif
35714
35715 up_fail:
35716 if (ret)
35717- current->mm->context.vdso = NULL;
35718+ current->mm->context.vdso = 0;
35719
35720 up_write(&mm->mmap_sem);
35721 return ret;
35722@@ -191,8 +190,8 @@ static int load_vdso32(void)
35723
35724 if (selected_vdso32->sym_VDSO32_SYSENTER_RETURN)
35725 current_thread_info()->sysenter_return =
35726- current->mm->context.vdso +
35727- selected_vdso32->sym_VDSO32_SYSENTER_RETURN;
35728+ (void __force_user *)(current->mm->context.vdso +
35729+ selected_vdso32->sym_VDSO32_SYSENTER_RETURN);
35730
35731 return 0;
35732 }
35733@@ -201,9 +200,6 @@ static int load_vdso32(void)
35734 #ifdef CONFIG_X86_64
35735 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35736 {
35737- if (!vdso64_enabled)
35738- return 0;
35739-
35740 return map_vdso(&vdso_image_64, true);
35741 }
35742
35743@@ -212,12 +208,8 @@ int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
35744 int uses_interp)
35745 {
35746 #ifdef CONFIG_X86_X32_ABI
35747- if (test_thread_flag(TIF_X32)) {
35748- if (!vdso64_enabled)
35749- return 0;
35750-
35751+ if (test_thread_flag(TIF_X32))
35752 return map_vdso(&vdso_image_x32, true);
35753- }
35754 #endif
35755
35756 return load_vdso32();
35757@@ -231,15 +223,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35758 #endif
35759
35760 #ifdef CONFIG_X86_64
35761-static __init int vdso_setup(char *s)
35762-{
35763- vdso64_enabled = simple_strtoul(s, NULL, 0);
35764- return 0;
35765-}
35766-__setup("vdso=", vdso_setup);
35767-#endif
35768-
35769-#ifdef CONFIG_X86_64
35770 static void vgetcpu_cpu_init(void *arg)
35771 {
35772 int cpu = smp_processor_id();
35773diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
35774index e88fda8..76ce7ce 100644
35775--- a/arch/x86/xen/Kconfig
35776+++ b/arch/x86/xen/Kconfig
35777@@ -9,6 +9,7 @@ config XEN
35778 select XEN_HAVE_PVMMU
35779 depends on X86_64 || (X86_32 && X86_PAE)
35780 depends on X86_TSC
35781+ depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_XEN
35782 help
35783 This is the Linux Xen port. Enabling this will allow the
35784 kernel to boot in a paravirtualized environment under the
35785diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
35786index 5240f56..0c12163 100644
35787--- a/arch/x86/xen/enlighten.c
35788+++ b/arch/x86/xen/enlighten.c
35789@@ -125,8 +125,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
35790
35791 struct shared_info xen_dummy_shared_info;
35792
35793-void *xen_initial_gdt;
35794-
35795 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
35796 __read_mostly int xen_have_vector_callback;
35797 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
35798@@ -544,8 +542,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
35799 {
35800 unsigned long va = dtr->address;
35801 unsigned int size = dtr->size + 1;
35802- unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35803- unsigned long frames[pages];
35804+ unsigned long frames[65536 / PAGE_SIZE];
35805 int f;
35806
35807 /*
35808@@ -593,8 +590,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35809 {
35810 unsigned long va = dtr->address;
35811 unsigned int size = dtr->size + 1;
35812- unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35813- unsigned long frames[pages];
35814+ unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
35815 int f;
35816
35817 /*
35818@@ -602,7 +598,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35819 * 8-byte entries, or 16 4k pages..
35820 */
35821
35822- BUG_ON(size > 65536);
35823+ BUG_ON(size > GDT_SIZE);
35824 BUG_ON(va & ~PAGE_MASK);
35825
35826 for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
35827@@ -991,7 +987,7 @@ static u32 xen_safe_apic_wait_icr_idle(void)
35828 return 0;
35829 }
35830
35831-static void set_xen_basic_apic_ops(void)
35832+static void __init set_xen_basic_apic_ops(void)
35833 {
35834 apic->read = xen_apic_read;
35835 apic->write = xen_apic_write;
35836@@ -1308,30 +1304,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
35837 #endif
35838 };
35839
35840-static void xen_reboot(int reason)
35841+static __noreturn void xen_reboot(int reason)
35842 {
35843 struct sched_shutdown r = { .reason = reason };
35844
35845- if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
35846- BUG();
35847+ HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
35848+ BUG();
35849 }
35850
35851-static void xen_restart(char *msg)
35852+static __noreturn void xen_restart(char *msg)
35853 {
35854 xen_reboot(SHUTDOWN_reboot);
35855 }
35856
35857-static void xen_emergency_restart(void)
35858+static __noreturn void xen_emergency_restart(void)
35859 {
35860 xen_reboot(SHUTDOWN_reboot);
35861 }
35862
35863-static void xen_machine_halt(void)
35864+static __noreturn void xen_machine_halt(void)
35865 {
35866 xen_reboot(SHUTDOWN_poweroff);
35867 }
35868
35869-static void xen_machine_power_off(void)
35870+static __noreturn void xen_machine_power_off(void)
35871 {
35872 if (pm_power_off)
35873 pm_power_off();
35874@@ -1484,8 +1480,11 @@ static void __ref xen_setup_gdt(int cpu)
35875 pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry_boot;
35876 pv_cpu_ops.load_gdt = xen_load_gdt_boot;
35877
35878- setup_stack_canary_segment(0);
35879- switch_to_new_gdt(0);
35880+ setup_stack_canary_segment(cpu);
35881+#ifdef CONFIG_X86_64
35882+ load_percpu_segment(cpu);
35883+#endif
35884+ switch_to_new_gdt(cpu);
35885
35886 pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry;
35887 pv_cpu_ops.load_gdt = xen_load_gdt;
35888@@ -1600,7 +1599,17 @@ asmlinkage __visible void __init xen_start_kernel(void)
35889 __userpte_alloc_gfp &= ~__GFP_HIGHMEM;
35890
35891 /* Work out if we support NX */
35892- x86_configure_nx();
35893+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
35894+ if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
35895+ (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
35896+ unsigned l, h;
35897+
35898+ __supported_pte_mask |= _PAGE_NX;
35899+ rdmsr(MSR_EFER, l, h);
35900+ l |= EFER_NX;
35901+ wrmsr(MSR_EFER, l, h);
35902+ }
35903+#endif
35904
35905 /* Get mfn list */
35906 xen_build_dynamic_phys_to_machine();
35907@@ -1628,13 +1637,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
35908
35909 machine_ops = xen_machine_ops;
35910
35911- /*
35912- * The only reliable way to retain the initial address of the
35913- * percpu gdt_page is to remember it here, so we can go and
35914- * mark it RW later, when the initial percpu area is freed.
35915- */
35916- xen_initial_gdt = &per_cpu(gdt_page, 0);
35917-
35918 xen_smp_init();
35919
35920 #ifdef CONFIG_ACPI_NUMA
35921diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
35922index adca9e2..cdba9d1 100644
35923--- a/arch/x86/xen/mmu.c
35924+++ b/arch/x86/xen/mmu.c
35925@@ -379,7 +379,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
35926 return val;
35927 }
35928
35929-static pteval_t pte_pfn_to_mfn(pteval_t val)
35930+static pteval_t __intentional_overflow(-1) pte_pfn_to_mfn(pteval_t val)
35931 {
35932 if (val & _PAGE_PRESENT) {
35933 unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
35934@@ -1835,7 +1835,11 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35935 * L3_k[511] -> level2_fixmap_pgt */
35936 convert_pfn_mfn(level3_kernel_pgt);
35937
35938+ convert_pfn_mfn(level3_vmalloc_start_pgt);
35939+ convert_pfn_mfn(level3_vmalloc_end_pgt);
35940+ convert_pfn_mfn(level3_vmemmap_pgt);
35941 /* L3_k[511][506] -> level1_fixmap_pgt */
35942+ /* L3_k[511][507] -> level1_vsyscall_pgt */
35943 convert_pfn_mfn(level2_fixmap_pgt);
35944 }
35945 /* We get [511][511] and have Xen's version of level2_kernel_pgt */
35946@@ -1860,11 +1864,18 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35947 set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
35948 set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
35949 set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
35950+ set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
35951+ set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
35952+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
35953 set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
35954 set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
35955+ set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
35956 set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
35957 set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
35958- set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
35959+ set_page_prot(level1_fixmap_pgt[0], PAGE_KERNEL_RO);
35960+ set_page_prot(level1_fixmap_pgt[1], PAGE_KERNEL_RO);
35961+ set_page_prot(level1_fixmap_pgt[2], PAGE_KERNEL_RO);
35962+ set_page_prot(level1_vsyscall_pgt, PAGE_KERNEL_RO);
35963
35964 /* Pin down new L4 */
35965 pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
35966@@ -2048,6 +2059,7 @@ static void __init xen_post_allocator_init(void)
35967 pv_mmu_ops.set_pud = xen_set_pud;
35968 #if PAGETABLE_LEVELS == 4
35969 pv_mmu_ops.set_pgd = xen_set_pgd;
35970+ pv_mmu_ops.set_pgd_batched = xen_set_pgd;
35971 #endif
35972
35973 /* This will work as long as patching hasn't happened yet
35974@@ -2126,6 +2138,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
35975 .pud_val = PV_CALLEE_SAVE(xen_pud_val),
35976 .make_pud = PV_CALLEE_SAVE(xen_make_pud),
35977 .set_pgd = xen_set_pgd_hyper,
35978+ .set_pgd_batched = xen_set_pgd_hyper,
35979
35980 .alloc_pud = xen_alloc_pmd_init,
35981 .release_pud = xen_release_pmd_init,
35982diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
35983index 08e8489..b1e182f 100644
35984--- a/arch/x86/xen/smp.c
35985+++ b/arch/x86/xen/smp.c
35986@@ -288,17 +288,13 @@ static void __init xen_smp_prepare_boot_cpu(void)
35987
35988 if (xen_pv_domain()) {
35989 if (!xen_feature(XENFEAT_writable_page_tables))
35990- /* We've switched to the "real" per-cpu gdt, so make
35991- * sure the old memory can be recycled. */
35992- make_lowmem_page_readwrite(xen_initial_gdt);
35993-
35994 #ifdef CONFIG_X86_32
35995 /*
35996 * Xen starts us with XEN_FLAT_RING1_DS, but linux code
35997 * expects __USER_DS
35998 */
35999- loadsegment(ds, __USER_DS);
36000- loadsegment(es, __USER_DS);
36001+ loadsegment(ds, __KERNEL_DS);
36002+ loadsegment(es, __KERNEL_DS);
36003 #endif
36004
36005 xen_filter_cpu_maps();
36006@@ -379,7 +375,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
36007 #ifdef CONFIG_X86_32
36008 /* Note: PVH is not yet supported on x86_32. */
36009 ctxt->user_regs.fs = __KERNEL_PERCPU;
36010- ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
36011+ savesegment(gs, ctxt->user_regs.gs);
36012 #endif
36013 memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
36014
36015@@ -387,8 +383,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
36016 ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
36017 ctxt->flags = VGCF_IN_KERNEL;
36018 ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
36019- ctxt->user_regs.ds = __USER_DS;
36020- ctxt->user_regs.es = __USER_DS;
36021+ ctxt->user_regs.ds = __KERNEL_DS;
36022+ ctxt->user_regs.es = __KERNEL_DS;
36023 ctxt->user_regs.ss = __KERNEL_DS;
36024
36025 xen_copy_trap_info(ctxt->trap_ctxt);
36026@@ -446,14 +442,13 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
36027 int rc;
36028
36029 per_cpu(current_task, cpu) = idle;
36030+ per_cpu(current_tinfo, cpu) = &idle->tinfo;
36031 #ifdef CONFIG_X86_32
36032 irq_ctx_init(cpu);
36033 #else
36034 clear_tsk_thread_flag(idle, TIF_FORK);
36035 #endif
36036- per_cpu(kernel_stack, cpu) =
36037- (unsigned long)task_stack_page(idle) -
36038- KERNEL_STACK_OFFSET + THREAD_SIZE;
36039+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
36040
36041 xen_setup_runstate_info(cpu);
36042 xen_setup_timer(cpu);
36043@@ -732,7 +727,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
36044
36045 void __init xen_smp_init(void)
36046 {
36047- smp_ops = xen_smp_ops;
36048+ memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
36049 xen_fill_possible_map();
36050 }
36051
36052diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
36053index fd92a64..1f72641 100644
36054--- a/arch/x86/xen/xen-asm_32.S
36055+++ b/arch/x86/xen/xen-asm_32.S
36056@@ -99,7 +99,7 @@ ENTRY(xen_iret)
36057 pushw %fs
36058 movl $(__KERNEL_PERCPU), %eax
36059 movl %eax, %fs
36060- movl %fs:xen_vcpu, %eax
36061+ mov PER_CPU_VAR(xen_vcpu), %eax
36062 POP_FS
36063 #else
36064 movl %ss:xen_vcpu, %eax
36065diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
36066index 674b2225..f1f5dc1 100644
36067--- a/arch/x86/xen/xen-head.S
36068+++ b/arch/x86/xen/xen-head.S
36069@@ -39,6 +39,17 @@ ENTRY(startup_xen)
36070 #ifdef CONFIG_X86_32
36071 mov %esi,xen_start_info
36072 mov $init_thread_union+THREAD_SIZE,%esp
36073+#ifdef CONFIG_SMP
36074+ movl $cpu_gdt_table,%edi
36075+ movl $__per_cpu_load,%eax
36076+ movw %ax,__KERNEL_PERCPU + 2(%edi)
36077+ rorl $16,%eax
36078+ movb %al,__KERNEL_PERCPU + 4(%edi)
36079+ movb %ah,__KERNEL_PERCPU + 7(%edi)
36080+ movl $__per_cpu_end - 1,%eax
36081+ subl $__per_cpu_start,%eax
36082+ movw %ax,__KERNEL_PERCPU + 0(%edi)
36083+#endif
36084 #else
36085 mov %rsi,xen_start_info
36086 mov $init_thread_union+THREAD_SIZE,%rsp
36087diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
36088index 9e195c6..523ed36 100644
36089--- a/arch/x86/xen/xen-ops.h
36090+++ b/arch/x86/xen/xen-ops.h
36091@@ -16,8 +16,6 @@ void xen_syscall_target(void);
36092 void xen_syscall32_target(void);
36093 #endif
36094
36095-extern void *xen_initial_gdt;
36096-
36097 struct trap_info;
36098 void xen_copy_trap_info(struct trap_info *traps);
36099
36100diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
36101index 525bd3d..ef888b1 100644
36102--- a/arch/xtensa/variants/dc232b/include/variant/core.h
36103+++ b/arch/xtensa/variants/dc232b/include/variant/core.h
36104@@ -119,9 +119,9 @@
36105 ----------------------------------------------------------------------*/
36106
36107 #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
36108-#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
36109 #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
36110 #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
36111+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
36112
36113 #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
36114 #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
36115diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
36116index 2f33760..835e50a 100644
36117--- a/arch/xtensa/variants/fsf/include/variant/core.h
36118+++ b/arch/xtensa/variants/fsf/include/variant/core.h
36119@@ -11,6 +11,7 @@
36120 #ifndef _XTENSA_CORE_H
36121 #define _XTENSA_CORE_H
36122
36123+#include <linux/const.h>
36124
36125 /****************************************************************************
36126 Parameters Useful for Any Code, USER or PRIVILEGED
36127@@ -112,9 +113,9 @@
36128 ----------------------------------------------------------------------*/
36129
36130 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
36131-#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
36132 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
36133 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
36134+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
36135
36136 #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
36137 #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
36138diff --git a/block/bio.c b/block/bio.c
36139index f66a4ea..73ddf55 100644
36140--- a/block/bio.c
36141+++ b/block/bio.c
36142@@ -1172,7 +1172,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
36143 /*
36144 * Overflow, abort
36145 */
36146- if (end < start)
36147+ if (end < start || end - start > INT_MAX - nr_pages)
36148 return ERR_PTR(-EINVAL);
36149
36150 nr_pages += end - start;
36151@@ -1297,7 +1297,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
36152 /*
36153 * Overflow, abort
36154 */
36155- if (end < start)
36156+ if (end < start || end - start > INT_MAX - nr_pages)
36157 return ERR_PTR(-EINVAL);
36158
36159 nr_pages += end - start;
36160diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
36161index 0736729..2ec3b48 100644
36162--- a/block/blk-iopoll.c
36163+++ b/block/blk-iopoll.c
36164@@ -74,7 +74,7 @@ void blk_iopoll_complete(struct blk_iopoll *iop)
36165 }
36166 EXPORT_SYMBOL(blk_iopoll_complete);
36167
36168-static void blk_iopoll_softirq(struct softirq_action *h)
36169+static __latent_entropy void blk_iopoll_softirq(void)
36170 {
36171 struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
36172 int rearm = 0, budget = blk_iopoll_budget;
36173diff --git a/block/blk-map.c b/block/blk-map.c
36174index b8d2725..08c52b0 100644
36175--- a/block/blk-map.c
36176+++ b/block/blk-map.c
36177@@ -192,7 +192,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
36178 if (!len || !kbuf)
36179 return -EINVAL;
36180
36181- do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
36182+ do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
36183 if (do_copy)
36184 bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
36185 else
36186diff --git a/block/blk-softirq.c b/block/blk-softirq.c
36187index 53b1737..08177d2e 100644
36188--- a/block/blk-softirq.c
36189+++ b/block/blk-softirq.c
36190@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
36191 * Softirq action handler - move entries to local list and loop over them
36192 * while passing them to the queue registered handler.
36193 */
36194-static void blk_done_softirq(struct softirq_action *h)
36195+static __latent_entropy void blk_done_softirq(void)
36196 {
36197 struct list_head *cpu_list, local_list;
36198
36199diff --git a/block/bsg.c b/block/bsg.c
36200index d214e92..9649863 100644
36201--- a/block/bsg.c
36202+++ b/block/bsg.c
36203@@ -140,16 +140,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
36204 struct sg_io_v4 *hdr, struct bsg_device *bd,
36205 fmode_t has_write_perm)
36206 {
36207+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36208+ unsigned char *cmdptr;
36209+
36210 if (hdr->request_len > BLK_MAX_CDB) {
36211 rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
36212 if (!rq->cmd)
36213 return -ENOMEM;
36214- }
36215+ cmdptr = rq->cmd;
36216+ } else
36217+ cmdptr = tmpcmd;
36218
36219- if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
36220+ if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
36221 hdr->request_len))
36222 return -EFAULT;
36223
36224+ if (cmdptr != rq->cmd)
36225+ memcpy(rq->cmd, cmdptr, hdr->request_len);
36226+
36227 if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
36228 if (blk_verify_command(rq->cmd, has_write_perm))
36229 return -EPERM;
36230diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
36231index f678c73..f35aa18 100644
36232--- a/block/compat_ioctl.c
36233+++ b/block/compat_ioctl.c
36234@@ -156,7 +156,7 @@ static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
36235 cgc = compat_alloc_user_space(sizeof(*cgc));
36236 cgc32 = compat_ptr(arg);
36237
36238- if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
36239+ if (copy_in_user(cgc->cmd, cgc32->cmd, sizeof(cgc->cmd)) ||
36240 get_user(data, &cgc32->buffer) ||
36241 put_user(compat_ptr(data), &cgc->buffer) ||
36242 copy_in_user(&cgc->buflen, &cgc32->buflen,
36243@@ -341,7 +341,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
36244 err |= __get_user(f->spec1, &uf->spec1);
36245 err |= __get_user(f->fmt_gap, &uf->fmt_gap);
36246 err |= __get_user(name, &uf->name);
36247- f->name = compat_ptr(name);
36248+ f->name = (void __force_kernel *)compat_ptr(name);
36249 if (err) {
36250 err = -EFAULT;
36251 goto out;
36252diff --git a/block/genhd.c b/block/genhd.c
36253index 0a536dc..b8f7aca 100644
36254--- a/block/genhd.c
36255+++ b/block/genhd.c
36256@@ -469,21 +469,24 @@ static char *bdevt_str(dev_t devt, char *buf)
36257
36258 /*
36259 * Register device numbers dev..(dev+range-1)
36260- * range must be nonzero
36261+ * Noop if @range is zero.
36262 * The hash chain is sorted on range, so that subranges can override.
36263 */
36264 void blk_register_region(dev_t devt, unsigned long range, struct module *module,
36265 struct kobject *(*probe)(dev_t, int *, void *),
36266 int (*lock)(dev_t, void *), void *data)
36267 {
36268- kobj_map(bdev_map, devt, range, module, probe, lock, data);
36269+ if (range)
36270+ kobj_map(bdev_map, devt, range, module, probe, lock, data);
36271 }
36272
36273 EXPORT_SYMBOL(blk_register_region);
36274
36275+/* undo blk_register_region(), noop if @range is zero */
36276 void blk_unregister_region(dev_t devt, unsigned long range)
36277 {
36278- kobj_unmap(bdev_map, devt, range);
36279+ if (range)
36280+ kobj_unmap(bdev_map, devt, range);
36281 }
36282
36283 EXPORT_SYMBOL(blk_unregister_region);
36284diff --git a/block/partitions/efi.c b/block/partitions/efi.c
36285index 26cb624..a49c3a5 100644
36286--- a/block/partitions/efi.c
36287+++ b/block/partitions/efi.c
36288@@ -293,14 +293,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
36289 if (!gpt)
36290 return NULL;
36291
36292+ if (!le32_to_cpu(gpt->num_partition_entries))
36293+ return NULL;
36294+ pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
36295+ if (!pte)
36296+ return NULL;
36297+
36298 count = le32_to_cpu(gpt->num_partition_entries) *
36299 le32_to_cpu(gpt->sizeof_partition_entry);
36300- if (!count)
36301- return NULL;
36302- pte = kmalloc(count, GFP_KERNEL);
36303- if (!pte)
36304- return NULL;
36305-
36306 if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
36307 (u8 *) pte, count) < count) {
36308 kfree(pte);
36309diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
36310index e1f71c3..02d295a 100644
36311--- a/block/scsi_ioctl.c
36312+++ b/block/scsi_ioctl.c
36313@@ -67,7 +67,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
36314 return put_user(0, p);
36315 }
36316
36317-static int sg_get_timeout(struct request_queue *q)
36318+static int __intentional_overflow(-1) sg_get_timeout(struct request_queue *q)
36319 {
36320 return jiffies_to_clock_t(q->sg_timeout);
36321 }
36322@@ -227,8 +227,20 @@ EXPORT_SYMBOL(blk_verify_command);
36323 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
36324 struct sg_io_hdr *hdr, fmode_t mode)
36325 {
36326- if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
36327+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36328+ unsigned char *cmdptr;
36329+
36330+ if (rq->cmd != rq->__cmd)
36331+ cmdptr = rq->cmd;
36332+ else
36333+ cmdptr = tmpcmd;
36334+
36335+ if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
36336 return -EFAULT;
36337+
36338+ if (cmdptr != rq->cmd)
36339+ memcpy(rq->cmd, cmdptr, hdr->cmd_len);
36340+
36341 if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
36342 return -EPERM;
36343
36344@@ -422,6 +434,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36345 int err;
36346 unsigned int in_len, out_len, bytes, opcode, cmdlen;
36347 char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
36348+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36349+ unsigned char *cmdptr;
36350
36351 if (!sic)
36352 return -EINVAL;
36353@@ -460,9 +474,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36354 */
36355 err = -EFAULT;
36356 rq->cmd_len = cmdlen;
36357- if (copy_from_user(rq->cmd, sic->data, cmdlen))
36358+
36359+ if (rq->cmd != rq->__cmd)
36360+ cmdptr = rq->cmd;
36361+ else
36362+ cmdptr = tmpcmd;
36363+
36364+ if (copy_from_user(cmdptr, sic->data, cmdlen))
36365 goto error;
36366
36367+ if (rq->cmd != cmdptr)
36368+ memcpy(rq->cmd, cmdptr, cmdlen);
36369+
36370 if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
36371 goto error;
36372
36373diff --git a/crypto/cryptd.c b/crypto/cryptd.c
36374index 650afac1..f3307de 100644
36375--- a/crypto/cryptd.c
36376+++ b/crypto/cryptd.c
36377@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
36378
36379 struct cryptd_blkcipher_request_ctx {
36380 crypto_completion_t complete;
36381-};
36382+} __no_const;
36383
36384 struct cryptd_hash_ctx {
36385 struct crypto_shash *child;
36386@@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
36387
36388 struct cryptd_aead_request_ctx {
36389 crypto_completion_t complete;
36390-};
36391+} __no_const;
36392
36393 static void cryptd_queue_worker(struct work_struct *work);
36394
36395diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
36396index c305d41..a96de79 100644
36397--- a/crypto/pcrypt.c
36398+++ b/crypto/pcrypt.c
36399@@ -440,7 +440,7 @@ static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
36400 int ret;
36401
36402 pinst->kobj.kset = pcrypt_kset;
36403- ret = kobject_add(&pinst->kobj, NULL, name);
36404+ ret = kobject_add(&pinst->kobj, NULL, "%s", name);
36405 if (!ret)
36406 kobject_uevent(&pinst->kobj, KOBJ_ADD);
36407
36408diff --git a/crypto/zlib.c b/crypto/zlib.c
36409index 0eefa9d..0fa3d29 100644
36410--- a/crypto/zlib.c
36411+++ b/crypto/zlib.c
36412@@ -95,10 +95,10 @@ static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
36413 zlib_comp_exit(ctx);
36414
36415 window_bits = tb[ZLIB_COMP_WINDOWBITS]
36416- ? nla_get_u32(tb[ZLIB_COMP_WINDOWBITS])
36417+ ? nla_get_s32(tb[ZLIB_COMP_WINDOWBITS])
36418 : MAX_WBITS;
36419 mem_level = tb[ZLIB_COMP_MEMLEVEL]
36420- ? nla_get_u32(tb[ZLIB_COMP_MEMLEVEL])
36421+ ? nla_get_s32(tb[ZLIB_COMP_MEMLEVEL])
36422 : DEF_MEM_LEVEL;
36423
36424 workspacesize = zlib_deflate_workspacesize(window_bits, mem_level);
36425diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
36426index 3b37676..898edfa 100644
36427--- a/drivers/acpi/acpica/hwxfsleep.c
36428+++ b/drivers/acpi/acpica/hwxfsleep.c
36429@@ -63,11 +63,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
36430 /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
36431
36432 static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
36433- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36434- acpi_hw_extended_sleep},
36435- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36436- acpi_hw_extended_wake_prep},
36437- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
36438+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36439+ .extended_function = acpi_hw_extended_sleep},
36440+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36441+ .extended_function = acpi_hw_extended_wake_prep},
36442+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
36443+ .extended_function = acpi_hw_extended_wake}
36444 };
36445
36446 /*
36447diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
36448index 16129c7..8b675cd 100644
36449--- a/drivers/acpi/apei/apei-internal.h
36450+++ b/drivers/acpi/apei/apei-internal.h
36451@@ -19,7 +19,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
36452 struct apei_exec_ins_type {
36453 u32 flags;
36454 apei_exec_ins_func_t run;
36455-};
36456+} __do_const;
36457
36458 struct apei_exec_context {
36459 u32 ip;
36460diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
36461index e82d097..0c855c1 100644
36462--- a/drivers/acpi/apei/ghes.c
36463+++ b/drivers/acpi/apei/ghes.c
36464@@ -478,7 +478,7 @@ static void __ghes_print_estatus(const char *pfx,
36465 const struct acpi_hest_generic *generic,
36466 const struct acpi_hest_generic_status *estatus)
36467 {
36468- static atomic_t seqno;
36469+ static atomic_unchecked_t seqno;
36470 unsigned int curr_seqno;
36471 char pfx_seq[64];
36472
36473@@ -489,7 +489,7 @@ static void __ghes_print_estatus(const char *pfx,
36474 else
36475 pfx = KERN_ERR;
36476 }
36477- curr_seqno = atomic_inc_return(&seqno);
36478+ curr_seqno = atomic_inc_return_unchecked(&seqno);
36479 snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
36480 printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
36481 pfx_seq, generic->header.source_id);
36482diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
36483index a83e3c6..c3d617f 100644
36484--- a/drivers/acpi/bgrt.c
36485+++ b/drivers/acpi/bgrt.c
36486@@ -86,8 +86,10 @@ static int __init bgrt_init(void)
36487 if (!bgrt_image)
36488 return -ENODEV;
36489
36490- bin_attr_image.private = bgrt_image;
36491- bin_attr_image.size = bgrt_image_size;
36492+ pax_open_kernel();
36493+ *(void **)&bin_attr_image.private = bgrt_image;
36494+ *(size_t *)&bin_attr_image.size = bgrt_image_size;
36495+ pax_close_kernel();
36496
36497 bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
36498 if (!bgrt_kobj)
36499diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
36500index 9b693d5..8953d54 100644
36501--- a/drivers/acpi/blacklist.c
36502+++ b/drivers/acpi/blacklist.c
36503@@ -51,7 +51,7 @@ struct acpi_blacklist_item {
36504 u32 is_critical_error;
36505 };
36506
36507-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
36508+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
36509
36510 /*
36511 * POLICY: If *anything* doesn't work, put it on the blacklist.
36512@@ -163,7 +163,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
36513 return 0;
36514 }
36515
36516-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
36517+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
36518 {
36519 .callback = dmi_disable_osi_vista,
36520 .ident = "Fujitsu Siemens",
36521diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
36522index 8b67bd0..b59593e 100644
36523--- a/drivers/acpi/bus.c
36524+++ b/drivers/acpi/bus.c
36525@@ -67,7 +67,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
36526 }
36527 #endif
36528
36529-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36530+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
36531 /*
36532 * Invoke DSDT corruption work-around on all Toshiba Satellite.
36533 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
36534@@ -83,7 +83,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36535 {}
36536 };
36537 #else
36538-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36539+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
36540 {}
36541 };
36542 #endif
36543diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
36544index c68e724..e863008 100644
36545--- a/drivers/acpi/custom_method.c
36546+++ b/drivers/acpi/custom_method.c
36547@@ -29,6 +29,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
36548 struct acpi_table_header table;
36549 acpi_status status;
36550
36551+#ifdef CONFIG_GRKERNSEC_KMEM
36552+ return -EPERM;
36553+#endif
36554+
36555 if (!(*ppos)) {
36556 /* parse the table header to get the table length */
36557 if (count <= sizeof(struct acpi_table_header))
36558diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
36559index 735db11..91e07ff 100644
36560--- a/drivers/acpi/device_pm.c
36561+++ b/drivers/acpi/device_pm.c
36562@@ -1025,6 +1025,8 @@ EXPORT_SYMBOL_GPL(acpi_subsys_freeze);
36563
36564 #endif /* CONFIG_PM_SLEEP */
36565
36566+static void acpi_dev_pm_detach(struct device *dev, bool power_off);
36567+
36568 static struct dev_pm_domain acpi_general_pm_domain = {
36569 .ops = {
36570 .runtime_suspend = acpi_subsys_runtime_suspend,
36571@@ -1041,6 +1043,7 @@ static struct dev_pm_domain acpi_general_pm_domain = {
36572 .restore_early = acpi_subsys_resume_early,
36573 #endif
36574 },
36575+ .detach = acpi_dev_pm_detach
36576 };
36577
36578 /**
36579@@ -1110,7 +1113,6 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
36580 acpi_device_wakeup(adev, ACPI_STATE_S0, false);
36581 }
36582
36583- dev->pm_domain->detach = acpi_dev_pm_detach;
36584 return 0;
36585 }
36586 EXPORT_SYMBOL_GPL(acpi_dev_pm_attach);
36587diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
36588index a8dd2f7..e15950e 100644
36589--- a/drivers/acpi/ec.c
36590+++ b/drivers/acpi/ec.c
36591@@ -1242,7 +1242,7 @@ static int ec_clear_on_resume(const struct dmi_system_id *id)
36592 return 0;
36593 }
36594
36595-static struct dmi_system_id ec_dmi_table[] __initdata = {
36596+static const struct dmi_system_id ec_dmi_table[] __initconst = {
36597 {
36598 ec_skip_dsdt_scan, "Compal JFL92", {
36599 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
36600diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
36601index 139d9e4..9a9d799 100644
36602--- a/drivers/acpi/pci_slot.c
36603+++ b/drivers/acpi/pci_slot.c
36604@@ -195,7 +195,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
36605 return 0;
36606 }
36607
36608-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
36609+static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
36610 /*
36611 * Fujitsu Primequest machines will return 1023 to indicate an
36612 * error if the _SUN method is evaluated on SxFy objects that
36613diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
36614index d9f7158..168e742 100644
36615--- a/drivers/acpi/processor_driver.c
36616+++ b/drivers/acpi/processor_driver.c
36617@@ -159,7 +159,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
36618 return NOTIFY_OK;
36619 }
36620
36621-static struct notifier_block __refdata acpi_cpu_notifier = {
36622+static struct notifier_block __refconst acpi_cpu_notifier = {
36623 .notifier_call = acpi_cpu_soft_notify,
36624 };
36625
36626diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
36627index f98db0b..8309c83 100644
36628--- a/drivers/acpi/processor_idle.c
36629+++ b/drivers/acpi/processor_idle.c
36630@@ -912,7 +912,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
36631 {
36632 int i, count = CPUIDLE_DRIVER_STATE_START;
36633 struct acpi_processor_cx *cx;
36634- struct cpuidle_state *state;
36635+ cpuidle_state_no_const *state;
36636 struct cpuidle_driver *drv = &acpi_idle_driver;
36637
36638 if (!pr->flags.power_setup_done)
36639diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
36640index e5dd808..1eceed1 100644
36641--- a/drivers/acpi/processor_pdc.c
36642+++ b/drivers/acpi/processor_pdc.c
36643@@ -176,7 +176,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
36644 return 0;
36645 }
36646
36647-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
36648+static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
36649 {
36650 set_no_mwait, "Extensa 5220", {
36651 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
36652diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
36653index 7f251dd..47b262c 100644
36654--- a/drivers/acpi/sleep.c
36655+++ b/drivers/acpi/sleep.c
36656@@ -148,7 +148,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
36657 return 0;
36658 }
36659
36660-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
36661+static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
36662 {
36663 .callback = init_old_suspend_ordering,
36664 .ident = "Abit KN9 (nForce4 variant)",
36665diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
36666index 13e577c..cef11ee 100644
36667--- a/drivers/acpi/sysfs.c
36668+++ b/drivers/acpi/sysfs.c
36669@@ -423,11 +423,11 @@ static u32 num_counters;
36670 static struct attribute **all_attrs;
36671 static u32 acpi_gpe_count;
36672
36673-static struct attribute_group interrupt_stats_attr_group = {
36674+static attribute_group_no_const interrupt_stats_attr_group = {
36675 .name = "interrupts",
36676 };
36677
36678-static struct kobj_attribute *counter_attrs;
36679+static kobj_attribute_no_const *counter_attrs;
36680
36681 static void delete_gpe_attr_array(void)
36682 {
36683diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
36684index d24fa19..782f1e6 100644
36685--- a/drivers/acpi/thermal.c
36686+++ b/drivers/acpi/thermal.c
36687@@ -1209,7 +1209,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
36688 return 0;
36689 }
36690
36691-static struct dmi_system_id thermal_dmi_table[] __initdata = {
36692+static const struct dmi_system_id thermal_dmi_table[] __initconst = {
36693 /*
36694 * Award BIOS on this AOpen makes thermal control almost worthless.
36695 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
36696diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
36697index 26eb70c..4d66ddf 100644
36698--- a/drivers/acpi/video.c
36699+++ b/drivers/acpi/video.c
36700@@ -418,7 +418,7 @@ static int __init video_disable_native_backlight(const struct dmi_system_id *d)
36701 return 0;
36702 }
36703
36704-static struct dmi_system_id video_dmi_table[] __initdata = {
36705+static const struct dmi_system_id video_dmi_table[] __initconst = {
36706 /*
36707 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
36708 */
36709diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
36710index 61a9c07..ea98fa1 100644
36711--- a/drivers/ata/libahci.c
36712+++ b/drivers/ata/libahci.c
36713@@ -1252,7 +1252,7 @@ int ahci_kick_engine(struct ata_port *ap)
36714 }
36715 EXPORT_SYMBOL_GPL(ahci_kick_engine);
36716
36717-static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36718+static int __intentional_overflow(-1) ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36719 struct ata_taskfile *tf, int is_cmd, u16 flags,
36720 unsigned long timeout_msec)
36721 {
36722diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
36723index 23dac3b..89ada44 100644
36724--- a/drivers/ata/libata-core.c
36725+++ b/drivers/ata/libata-core.c
36726@@ -99,7 +99,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
36727 static void ata_dev_xfermask(struct ata_device *dev);
36728 static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
36729
36730-atomic_t ata_print_id = ATOMIC_INIT(0);
36731+atomic_unchecked_t ata_print_id = ATOMIC_INIT(0);
36732
36733 struct ata_force_param {
36734 const char *name;
36735@@ -4780,7 +4780,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
36736 struct ata_port *ap;
36737 unsigned int tag;
36738
36739- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36740+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36741 ap = qc->ap;
36742
36743 qc->flags = 0;
36744@@ -4797,7 +4797,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
36745 struct ata_port *ap;
36746 struct ata_link *link;
36747
36748- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36749+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36750 WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
36751 ap = qc->ap;
36752 link = qc->dev->link;
36753@@ -5901,6 +5901,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36754 return;
36755
36756 spin_lock(&lock);
36757+ pax_open_kernel();
36758
36759 for (cur = ops->inherits; cur; cur = cur->inherits) {
36760 void **inherit = (void **)cur;
36761@@ -5914,8 +5915,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36762 if (IS_ERR(*pp))
36763 *pp = NULL;
36764
36765- ops->inherits = NULL;
36766+ *(struct ata_port_operations **)&ops->inherits = NULL;
36767
36768+ pax_close_kernel();
36769 spin_unlock(&lock);
36770 }
36771
36772@@ -6111,7 +6113,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
36773
36774 /* give ports names and add SCSI hosts */
36775 for (i = 0; i < host->n_ports; i++) {
36776- host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
36777+ host->ports[i]->print_id = atomic_inc_return_unchecked(&ata_print_id);
36778 host->ports[i]->local_port_no = i + 1;
36779 }
36780
36781diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
36782index b061ba2..fdcd85f 100644
36783--- a/drivers/ata/libata-scsi.c
36784+++ b/drivers/ata/libata-scsi.c
36785@@ -4172,7 +4172,7 @@ int ata_sas_port_init(struct ata_port *ap)
36786
36787 if (rc)
36788 return rc;
36789- ap->print_id = atomic_inc_return(&ata_print_id);
36790+ ap->print_id = atomic_inc_return_unchecked(&ata_print_id);
36791 return 0;
36792 }
36793 EXPORT_SYMBOL_GPL(ata_sas_port_init);
36794diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
36795index f840ca1..edd6ef3 100644
36796--- a/drivers/ata/libata.h
36797+++ b/drivers/ata/libata.h
36798@@ -53,7 +53,7 @@ enum {
36799 ATA_DNXFER_QUIET = (1 << 31),
36800 };
36801
36802-extern atomic_t ata_print_id;
36803+extern atomic_unchecked_t ata_print_id;
36804 extern int atapi_passthru16;
36805 extern int libata_fua;
36806 extern int libata_noacpi;
36807diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
36808index a9b0c82..207d97d 100644
36809--- a/drivers/ata/pata_arasan_cf.c
36810+++ b/drivers/ata/pata_arasan_cf.c
36811@@ -865,7 +865,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
36812 /* Handle platform specific quirks */
36813 if (quirk) {
36814 if (quirk & CF_BROKEN_PIO) {
36815- ap->ops->set_piomode = NULL;
36816+ pax_open_kernel();
36817+ *(void **)&ap->ops->set_piomode = NULL;
36818+ pax_close_kernel();
36819 ap->pio_mask = 0;
36820 }
36821 if (quirk & CF_BROKEN_MWDMA)
36822diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
36823index f9b983a..887b9d8 100644
36824--- a/drivers/atm/adummy.c
36825+++ b/drivers/atm/adummy.c
36826@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
36827 vcc->pop(vcc, skb);
36828 else
36829 dev_kfree_skb_any(skb);
36830- atomic_inc(&vcc->stats->tx);
36831+ atomic_inc_unchecked(&vcc->stats->tx);
36832
36833 return 0;
36834 }
36835diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
36836index f1a9198..f466a4a 100644
36837--- a/drivers/atm/ambassador.c
36838+++ b/drivers/atm/ambassador.c
36839@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
36840 PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
36841
36842 // VC layer stats
36843- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36844+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36845
36846 // free the descriptor
36847 kfree (tx_descr);
36848@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36849 dump_skb ("<<<", vc, skb);
36850
36851 // VC layer stats
36852- atomic_inc(&atm_vcc->stats->rx);
36853+ atomic_inc_unchecked(&atm_vcc->stats->rx);
36854 __net_timestamp(skb);
36855 // end of our responsibility
36856 atm_vcc->push (atm_vcc, skb);
36857@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36858 } else {
36859 PRINTK (KERN_INFO, "dropped over-size frame");
36860 // should we count this?
36861- atomic_inc(&atm_vcc->stats->rx_drop);
36862+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
36863 }
36864
36865 } else {
36866@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
36867 }
36868
36869 if (check_area (skb->data, skb->len)) {
36870- atomic_inc(&atm_vcc->stats->tx_err);
36871+ atomic_inc_unchecked(&atm_vcc->stats->tx_err);
36872 return -ENOMEM; // ?
36873 }
36874
36875diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
36876index 480fa6f..947067c 100644
36877--- a/drivers/atm/atmtcp.c
36878+++ b/drivers/atm/atmtcp.c
36879@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36880 if (vcc->pop) vcc->pop(vcc,skb);
36881 else dev_kfree_skb(skb);
36882 if (dev_data) return 0;
36883- atomic_inc(&vcc->stats->tx_err);
36884+ atomic_inc_unchecked(&vcc->stats->tx_err);
36885 return -ENOLINK;
36886 }
36887 size = skb->len+sizeof(struct atmtcp_hdr);
36888@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36889 if (!new_skb) {
36890 if (vcc->pop) vcc->pop(vcc,skb);
36891 else dev_kfree_skb(skb);
36892- atomic_inc(&vcc->stats->tx_err);
36893+ atomic_inc_unchecked(&vcc->stats->tx_err);
36894 return -ENOBUFS;
36895 }
36896 hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
36897@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36898 if (vcc->pop) vcc->pop(vcc,skb);
36899 else dev_kfree_skb(skb);
36900 out_vcc->push(out_vcc,new_skb);
36901- atomic_inc(&vcc->stats->tx);
36902- atomic_inc(&out_vcc->stats->rx);
36903+ atomic_inc_unchecked(&vcc->stats->tx);
36904+ atomic_inc_unchecked(&out_vcc->stats->rx);
36905 return 0;
36906 }
36907
36908@@ -300,7 +300,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36909 read_unlock(&vcc_sklist_lock);
36910 if (!out_vcc) {
36911 result = -EUNATCH;
36912- atomic_inc(&vcc->stats->tx_err);
36913+ atomic_inc_unchecked(&vcc->stats->tx_err);
36914 goto done;
36915 }
36916 skb_pull(skb,sizeof(struct atmtcp_hdr));
36917@@ -312,8 +312,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36918 __net_timestamp(new_skb);
36919 skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
36920 out_vcc->push(out_vcc,new_skb);
36921- atomic_inc(&vcc->stats->tx);
36922- atomic_inc(&out_vcc->stats->rx);
36923+ atomic_inc_unchecked(&vcc->stats->tx);
36924+ atomic_inc_unchecked(&out_vcc->stats->rx);
36925 done:
36926 if (vcc->pop) vcc->pop(vcc,skb);
36927 else dev_kfree_skb(skb);
36928diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
36929index 6339efd..2b441d5 100644
36930--- a/drivers/atm/eni.c
36931+++ b/drivers/atm/eni.c
36932@@ -525,7 +525,7 @@ static int rx_aal0(struct atm_vcc *vcc)
36933 DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
36934 vcc->dev->number);
36935 length = 0;
36936- atomic_inc(&vcc->stats->rx_err);
36937+ atomic_inc_unchecked(&vcc->stats->rx_err);
36938 }
36939 else {
36940 length = ATM_CELL_SIZE-1; /* no HEC */
36941@@ -580,7 +580,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36942 size);
36943 }
36944 eff = length = 0;
36945- atomic_inc(&vcc->stats->rx_err);
36946+ atomic_inc_unchecked(&vcc->stats->rx_err);
36947 }
36948 else {
36949 size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
36950@@ -597,7 +597,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36951 "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
36952 vcc->dev->number,vcc->vci,length,size << 2,descr);
36953 length = eff = 0;
36954- atomic_inc(&vcc->stats->rx_err);
36955+ atomic_inc_unchecked(&vcc->stats->rx_err);
36956 }
36957 }
36958 skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
36959@@ -770,7 +770,7 @@ rx_dequeued++;
36960 vcc->push(vcc,skb);
36961 pushed++;
36962 }
36963- atomic_inc(&vcc->stats->rx);
36964+ atomic_inc_unchecked(&vcc->stats->rx);
36965 }
36966 wake_up(&eni_dev->rx_wait);
36967 }
36968@@ -1230,7 +1230,7 @@ static void dequeue_tx(struct atm_dev *dev)
36969 DMA_TO_DEVICE);
36970 if (vcc->pop) vcc->pop(vcc,skb);
36971 else dev_kfree_skb_irq(skb);
36972- atomic_inc(&vcc->stats->tx);
36973+ atomic_inc_unchecked(&vcc->stats->tx);
36974 wake_up(&eni_dev->tx_wait);
36975 dma_complete++;
36976 }
36977diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
36978index 82f2ae0..f205c02 100644
36979--- a/drivers/atm/firestream.c
36980+++ b/drivers/atm/firestream.c
36981@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
36982 }
36983 }
36984
36985- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36986+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36987
36988 fs_dprintk (FS_DEBUG_TXMEM, "i");
36989 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
36990@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
36991 #endif
36992 skb_put (skb, qe->p1 & 0xffff);
36993 ATM_SKB(skb)->vcc = atm_vcc;
36994- atomic_inc(&atm_vcc->stats->rx);
36995+ atomic_inc_unchecked(&atm_vcc->stats->rx);
36996 __net_timestamp(skb);
36997 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
36998 atm_vcc->push (atm_vcc, skb);
36999@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
37000 kfree (pe);
37001 }
37002 if (atm_vcc)
37003- atomic_inc(&atm_vcc->stats->rx_drop);
37004+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
37005 break;
37006 case 0x1f: /* Reassembly abort: no buffers. */
37007 /* Silently increment error counter. */
37008 if (atm_vcc)
37009- atomic_inc(&atm_vcc->stats->rx_drop);
37010+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
37011 break;
37012 default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
37013 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
37014diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
37015index 75dde90..4309ead 100644
37016--- a/drivers/atm/fore200e.c
37017+++ b/drivers/atm/fore200e.c
37018@@ -932,9 +932,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
37019 #endif
37020 /* check error condition */
37021 if (*entry->status & STATUS_ERROR)
37022- atomic_inc(&vcc->stats->tx_err);
37023+ atomic_inc_unchecked(&vcc->stats->tx_err);
37024 else
37025- atomic_inc(&vcc->stats->tx);
37026+ atomic_inc_unchecked(&vcc->stats->tx);
37027 }
37028 }
37029
37030@@ -1083,7 +1083,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
37031 if (skb == NULL) {
37032 DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
37033
37034- atomic_inc(&vcc->stats->rx_drop);
37035+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37036 return -ENOMEM;
37037 }
37038
37039@@ -1126,14 +1126,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
37040
37041 dev_kfree_skb_any(skb);
37042
37043- atomic_inc(&vcc->stats->rx_drop);
37044+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37045 return -ENOMEM;
37046 }
37047
37048 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
37049
37050 vcc->push(vcc, skb);
37051- atomic_inc(&vcc->stats->rx);
37052+ atomic_inc_unchecked(&vcc->stats->rx);
37053
37054 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
37055
37056@@ -1211,7 +1211,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
37057 DPRINTK(2, "damaged PDU on %d.%d.%d\n",
37058 fore200e->atm_dev->number,
37059 entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
37060- atomic_inc(&vcc->stats->rx_err);
37061+ atomic_inc_unchecked(&vcc->stats->rx_err);
37062 }
37063 }
37064
37065@@ -1656,7 +1656,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
37066 goto retry_here;
37067 }
37068
37069- atomic_inc(&vcc->stats->tx_err);
37070+ atomic_inc_unchecked(&vcc->stats->tx_err);
37071
37072 fore200e->tx_sat++;
37073 DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
37074diff --git a/drivers/atm/he.c b/drivers/atm/he.c
37075index 93dca2e..c5daa69 100644
37076--- a/drivers/atm/he.c
37077+++ b/drivers/atm/he.c
37078@@ -1692,7 +1692,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37079
37080 if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
37081 hprintk("HBUF_ERR! (cid 0x%x)\n", cid);
37082- atomic_inc(&vcc->stats->rx_drop);
37083+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37084 goto return_host_buffers;
37085 }
37086
37087@@ -1719,7 +1719,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37088 RBRQ_LEN_ERR(he_dev->rbrq_head)
37089 ? "LEN_ERR" : "",
37090 vcc->vpi, vcc->vci);
37091- atomic_inc(&vcc->stats->rx_err);
37092+ atomic_inc_unchecked(&vcc->stats->rx_err);
37093 goto return_host_buffers;
37094 }
37095
37096@@ -1771,7 +1771,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37097 vcc->push(vcc, skb);
37098 spin_lock(&he_dev->global_lock);
37099
37100- atomic_inc(&vcc->stats->rx);
37101+ atomic_inc_unchecked(&vcc->stats->rx);
37102
37103 return_host_buffers:
37104 ++pdus_assembled;
37105@@ -2097,7 +2097,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
37106 tpd->vcc->pop(tpd->vcc, tpd->skb);
37107 else
37108 dev_kfree_skb_any(tpd->skb);
37109- atomic_inc(&tpd->vcc->stats->tx_err);
37110+ atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
37111 }
37112 dma_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
37113 return;
37114@@ -2509,7 +2509,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37115 vcc->pop(vcc, skb);
37116 else
37117 dev_kfree_skb_any(skb);
37118- atomic_inc(&vcc->stats->tx_err);
37119+ atomic_inc_unchecked(&vcc->stats->tx_err);
37120 return -EINVAL;
37121 }
37122
37123@@ -2520,7 +2520,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37124 vcc->pop(vcc, skb);
37125 else
37126 dev_kfree_skb_any(skb);
37127- atomic_inc(&vcc->stats->tx_err);
37128+ atomic_inc_unchecked(&vcc->stats->tx_err);
37129 return -EINVAL;
37130 }
37131 #endif
37132@@ -2532,7 +2532,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37133 vcc->pop(vcc, skb);
37134 else
37135 dev_kfree_skb_any(skb);
37136- atomic_inc(&vcc->stats->tx_err);
37137+ atomic_inc_unchecked(&vcc->stats->tx_err);
37138 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37139 return -ENOMEM;
37140 }
37141@@ -2574,7 +2574,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37142 vcc->pop(vcc, skb);
37143 else
37144 dev_kfree_skb_any(skb);
37145- atomic_inc(&vcc->stats->tx_err);
37146+ atomic_inc_unchecked(&vcc->stats->tx_err);
37147 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37148 return -ENOMEM;
37149 }
37150@@ -2605,7 +2605,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37151 __enqueue_tpd(he_dev, tpd, cid);
37152 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37153
37154- atomic_inc(&vcc->stats->tx);
37155+ atomic_inc_unchecked(&vcc->stats->tx);
37156
37157 return 0;
37158 }
37159diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
37160index 527bbd5..96570c8 100644
37161--- a/drivers/atm/horizon.c
37162+++ b/drivers/atm/horizon.c
37163@@ -1018,7 +1018,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
37164 {
37165 struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
37166 // VC layer stats
37167- atomic_inc(&vcc->stats->rx);
37168+ atomic_inc_unchecked(&vcc->stats->rx);
37169 __net_timestamp(skb);
37170 // end of our responsibility
37171 vcc->push (vcc, skb);
37172@@ -1170,7 +1170,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
37173 dev->tx_iovec = NULL;
37174
37175 // VC layer stats
37176- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
37177+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
37178
37179 // free the skb
37180 hrz_kfree_skb (skb);
37181diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
37182index 074616b..d6b3d5f 100644
37183--- a/drivers/atm/idt77252.c
37184+++ b/drivers/atm/idt77252.c
37185@@ -811,7 +811,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
37186 else
37187 dev_kfree_skb(skb);
37188
37189- atomic_inc(&vcc->stats->tx);
37190+ atomic_inc_unchecked(&vcc->stats->tx);
37191 }
37192
37193 atomic_dec(&scq->used);
37194@@ -1073,13 +1073,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37195 if ((sb = dev_alloc_skb(64)) == NULL) {
37196 printk("%s: Can't allocate buffers for aal0.\n",
37197 card->name);
37198- atomic_add(i, &vcc->stats->rx_drop);
37199+ atomic_add_unchecked(i, &vcc->stats->rx_drop);
37200 break;
37201 }
37202 if (!atm_charge(vcc, sb->truesize)) {
37203 RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
37204 card->name);
37205- atomic_add(i - 1, &vcc->stats->rx_drop);
37206+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
37207 dev_kfree_skb(sb);
37208 break;
37209 }
37210@@ -1096,7 +1096,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37211 ATM_SKB(sb)->vcc = vcc;
37212 __net_timestamp(sb);
37213 vcc->push(vcc, sb);
37214- atomic_inc(&vcc->stats->rx);
37215+ atomic_inc_unchecked(&vcc->stats->rx);
37216
37217 cell += ATM_CELL_PAYLOAD;
37218 }
37219@@ -1133,13 +1133,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37220 "(CDC: %08x)\n",
37221 card->name, len, rpp->len, readl(SAR_REG_CDC));
37222 recycle_rx_pool_skb(card, rpp);
37223- atomic_inc(&vcc->stats->rx_err);
37224+ atomic_inc_unchecked(&vcc->stats->rx_err);
37225 return;
37226 }
37227 if (stat & SAR_RSQE_CRC) {
37228 RXPRINTK("%s: AAL5 CRC error.\n", card->name);
37229 recycle_rx_pool_skb(card, rpp);
37230- atomic_inc(&vcc->stats->rx_err);
37231+ atomic_inc_unchecked(&vcc->stats->rx_err);
37232 return;
37233 }
37234 if (skb_queue_len(&rpp->queue) > 1) {
37235@@ -1150,7 +1150,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37236 RXPRINTK("%s: Can't alloc RX skb.\n",
37237 card->name);
37238 recycle_rx_pool_skb(card, rpp);
37239- atomic_inc(&vcc->stats->rx_err);
37240+ atomic_inc_unchecked(&vcc->stats->rx_err);
37241 return;
37242 }
37243 if (!atm_charge(vcc, skb->truesize)) {
37244@@ -1169,7 +1169,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37245 __net_timestamp(skb);
37246
37247 vcc->push(vcc, skb);
37248- atomic_inc(&vcc->stats->rx);
37249+ atomic_inc_unchecked(&vcc->stats->rx);
37250
37251 return;
37252 }
37253@@ -1191,7 +1191,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37254 __net_timestamp(skb);
37255
37256 vcc->push(vcc, skb);
37257- atomic_inc(&vcc->stats->rx);
37258+ atomic_inc_unchecked(&vcc->stats->rx);
37259
37260 if (skb->truesize > SAR_FB_SIZE_3)
37261 add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
37262@@ -1302,14 +1302,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
37263 if (vcc->qos.aal != ATM_AAL0) {
37264 RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
37265 card->name, vpi, vci);
37266- atomic_inc(&vcc->stats->rx_drop);
37267+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37268 goto drop;
37269 }
37270
37271 if ((sb = dev_alloc_skb(64)) == NULL) {
37272 printk("%s: Can't allocate buffers for AAL0.\n",
37273 card->name);
37274- atomic_inc(&vcc->stats->rx_err);
37275+ atomic_inc_unchecked(&vcc->stats->rx_err);
37276 goto drop;
37277 }
37278
37279@@ -1328,7 +1328,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
37280 ATM_SKB(sb)->vcc = vcc;
37281 __net_timestamp(sb);
37282 vcc->push(vcc, sb);
37283- atomic_inc(&vcc->stats->rx);
37284+ atomic_inc_unchecked(&vcc->stats->rx);
37285
37286 drop:
37287 skb_pull(queue, 64);
37288@@ -1953,13 +1953,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37289
37290 if (vc == NULL) {
37291 printk("%s: NULL connection in send().\n", card->name);
37292- atomic_inc(&vcc->stats->tx_err);
37293+ atomic_inc_unchecked(&vcc->stats->tx_err);
37294 dev_kfree_skb(skb);
37295 return -EINVAL;
37296 }
37297 if (!test_bit(VCF_TX, &vc->flags)) {
37298 printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
37299- atomic_inc(&vcc->stats->tx_err);
37300+ atomic_inc_unchecked(&vcc->stats->tx_err);
37301 dev_kfree_skb(skb);
37302 return -EINVAL;
37303 }
37304@@ -1971,14 +1971,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37305 break;
37306 default:
37307 printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
37308- atomic_inc(&vcc->stats->tx_err);
37309+ atomic_inc_unchecked(&vcc->stats->tx_err);
37310 dev_kfree_skb(skb);
37311 return -EINVAL;
37312 }
37313
37314 if (skb_shinfo(skb)->nr_frags != 0) {
37315 printk("%s: No scatter-gather yet.\n", card->name);
37316- atomic_inc(&vcc->stats->tx_err);
37317+ atomic_inc_unchecked(&vcc->stats->tx_err);
37318 dev_kfree_skb(skb);
37319 return -EINVAL;
37320 }
37321@@ -1986,7 +1986,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37322
37323 err = queue_skb(card, vc, skb, oam);
37324 if (err) {
37325- atomic_inc(&vcc->stats->tx_err);
37326+ atomic_inc_unchecked(&vcc->stats->tx_err);
37327 dev_kfree_skb(skb);
37328 return err;
37329 }
37330@@ -2009,7 +2009,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
37331 skb = dev_alloc_skb(64);
37332 if (!skb) {
37333 printk("%s: Out of memory in send_oam().\n", card->name);
37334- atomic_inc(&vcc->stats->tx_err);
37335+ atomic_inc_unchecked(&vcc->stats->tx_err);
37336 return -ENOMEM;
37337 }
37338 atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
37339diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
37340index 924f8e2..3375a3e 100644
37341--- a/drivers/atm/iphase.c
37342+++ b/drivers/atm/iphase.c
37343@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
37344 status = (u_short) (buf_desc_ptr->desc_mode);
37345 if (status & (RX_CER | RX_PTE | RX_OFL))
37346 {
37347- atomic_inc(&vcc->stats->rx_err);
37348+ atomic_inc_unchecked(&vcc->stats->rx_err);
37349 IF_ERR(printk("IA: bad packet, dropping it");)
37350 if (status & RX_CER) {
37351 IF_ERR(printk(" cause: packet CRC error\n");)
37352@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
37353 len = dma_addr - buf_addr;
37354 if (len > iadev->rx_buf_sz) {
37355 printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
37356- atomic_inc(&vcc->stats->rx_err);
37357+ atomic_inc_unchecked(&vcc->stats->rx_err);
37358 goto out_free_desc;
37359 }
37360
37361@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37362 ia_vcc = INPH_IA_VCC(vcc);
37363 if (ia_vcc == NULL)
37364 {
37365- atomic_inc(&vcc->stats->rx_err);
37366+ atomic_inc_unchecked(&vcc->stats->rx_err);
37367 atm_return(vcc, skb->truesize);
37368 dev_kfree_skb_any(skb);
37369 goto INCR_DLE;
37370@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37371 if ((length > iadev->rx_buf_sz) || (length >
37372 (skb->len - sizeof(struct cpcs_trailer))))
37373 {
37374- atomic_inc(&vcc->stats->rx_err);
37375+ atomic_inc_unchecked(&vcc->stats->rx_err);
37376 IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)",
37377 length, skb->len);)
37378 atm_return(vcc, skb->truesize);
37379@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37380
37381 IF_RX(printk("rx_dle_intr: skb push");)
37382 vcc->push(vcc,skb);
37383- atomic_inc(&vcc->stats->rx);
37384+ atomic_inc_unchecked(&vcc->stats->rx);
37385 iadev->rx_pkt_cnt++;
37386 }
37387 INCR_DLE:
37388@@ -2828,15 +2828,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
37389 {
37390 struct k_sonet_stats *stats;
37391 stats = &PRIV(_ia_dev[board])->sonet_stats;
37392- printk("section_bip: %d\n", atomic_read(&stats->section_bip));
37393- printk("line_bip : %d\n", atomic_read(&stats->line_bip));
37394- printk("path_bip : %d\n", atomic_read(&stats->path_bip));
37395- printk("line_febe : %d\n", atomic_read(&stats->line_febe));
37396- printk("path_febe : %d\n", atomic_read(&stats->path_febe));
37397- printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs));
37398- printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
37399- printk("tx_cells : %d\n", atomic_read(&stats->tx_cells));
37400- printk("rx_cells : %d\n", atomic_read(&stats->rx_cells));
37401+ printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
37402+ printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip));
37403+ printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip));
37404+ printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe));
37405+ printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe));
37406+ printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs));
37407+ printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
37408+ printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells));
37409+ printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells));
37410 }
37411 ia_cmds.status = 0;
37412 break;
37413@@ -2941,7 +2941,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
37414 if ((desc == 0) || (desc > iadev->num_tx_desc))
37415 {
37416 IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);)
37417- atomic_inc(&vcc->stats->tx);
37418+ atomic_inc_unchecked(&vcc->stats->tx);
37419 if (vcc->pop)
37420 vcc->pop(vcc, skb);
37421 else
37422@@ -3046,14 +3046,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
37423 ATM_DESC(skb) = vcc->vci;
37424 skb_queue_tail(&iadev->tx_dma_q, skb);
37425
37426- atomic_inc(&vcc->stats->tx);
37427+ atomic_inc_unchecked(&vcc->stats->tx);
37428 iadev->tx_pkt_cnt++;
37429 /* Increment transaction counter */
37430 writel(2, iadev->dma+IPHASE5575_TX_COUNTER);
37431
37432 #if 0
37433 /* add flow control logic */
37434- if (atomic_read(&vcc->stats->tx) % 20 == 0) {
37435+ if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
37436 if (iavcc->vc_desc_cnt > 10) {
37437 vcc->tx_quota = vcc->tx_quota * 3 / 4;
37438 printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
37439diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
37440index ce43ae3..969de38 100644
37441--- a/drivers/atm/lanai.c
37442+++ b/drivers/atm/lanai.c
37443@@ -1295,7 +1295,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
37444 vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
37445 lanai_endtx(lanai, lvcc);
37446 lanai_free_skb(lvcc->tx.atmvcc, skb);
37447- atomic_inc(&lvcc->tx.atmvcc->stats->tx);
37448+ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
37449 }
37450
37451 /* Try to fill the buffer - don't call unless there is backlog */
37452@@ -1418,7 +1418,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
37453 ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
37454 __net_timestamp(skb);
37455 lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
37456- atomic_inc(&lvcc->rx.atmvcc->stats->rx);
37457+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
37458 out:
37459 lvcc->rx.buf.ptr = end;
37460 cardvcc_write(lvcc, endptr, vcc_rxreadptr);
37461@@ -1659,7 +1659,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37462 DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
37463 "vcc %d\n", lanai->number, (unsigned int) s, vci);
37464 lanai->stats.service_rxnotaal5++;
37465- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37466+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37467 return 0;
37468 }
37469 if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
37470@@ -1671,7 +1671,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37471 int bytes;
37472 read_unlock(&vcc_sklist_lock);
37473 DPRINTK("got trashed rx pdu on vci %d\n", vci);
37474- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37475+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37476 lvcc->stats.x.aal5.service_trash++;
37477 bytes = (SERVICE_GET_END(s) * 16) -
37478 (((unsigned long) lvcc->rx.buf.ptr) -
37479@@ -1683,7 +1683,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37480 }
37481 if (s & SERVICE_STREAM) {
37482 read_unlock(&vcc_sklist_lock);
37483- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37484+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37485 lvcc->stats.x.aal5.service_stream++;
37486 printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
37487 "PDU on VCI %d!\n", lanai->number, vci);
37488@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37489 return 0;
37490 }
37491 DPRINTK("got rx crc error on vci %d\n", vci);
37492- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37493+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37494 lvcc->stats.x.aal5.service_rxcrc++;
37495 lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
37496 cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
37497diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
37498index b7e1cc0..eb336bfe 100644
37499--- a/drivers/atm/nicstar.c
37500+++ b/drivers/atm/nicstar.c
37501@@ -1640,7 +1640,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37502 if ((vc = (vc_map *) vcc->dev_data) == NULL) {
37503 printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
37504 card->index);
37505- atomic_inc(&vcc->stats->tx_err);
37506+ atomic_inc_unchecked(&vcc->stats->tx_err);
37507 dev_kfree_skb_any(skb);
37508 return -EINVAL;
37509 }
37510@@ -1648,7 +1648,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37511 if (!vc->tx) {
37512 printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
37513 card->index);
37514- atomic_inc(&vcc->stats->tx_err);
37515+ atomic_inc_unchecked(&vcc->stats->tx_err);
37516 dev_kfree_skb_any(skb);
37517 return -EINVAL;
37518 }
37519@@ -1656,14 +1656,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37520 if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
37521 printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
37522 card->index);
37523- atomic_inc(&vcc->stats->tx_err);
37524+ atomic_inc_unchecked(&vcc->stats->tx_err);
37525 dev_kfree_skb_any(skb);
37526 return -EINVAL;
37527 }
37528
37529 if (skb_shinfo(skb)->nr_frags != 0) {
37530 printk("nicstar%d: No scatter-gather yet.\n", card->index);
37531- atomic_inc(&vcc->stats->tx_err);
37532+ atomic_inc_unchecked(&vcc->stats->tx_err);
37533 dev_kfree_skb_any(skb);
37534 return -EINVAL;
37535 }
37536@@ -1711,11 +1711,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37537 }
37538
37539 if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
37540- atomic_inc(&vcc->stats->tx_err);
37541+ atomic_inc_unchecked(&vcc->stats->tx_err);
37542 dev_kfree_skb_any(skb);
37543 return -EIO;
37544 }
37545- atomic_inc(&vcc->stats->tx);
37546+ atomic_inc_unchecked(&vcc->stats->tx);
37547
37548 return 0;
37549 }
37550@@ -2032,14 +2032,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37551 printk
37552 ("nicstar%d: Can't allocate buffers for aal0.\n",
37553 card->index);
37554- atomic_add(i, &vcc->stats->rx_drop);
37555+ atomic_add_unchecked(i, &vcc->stats->rx_drop);
37556 break;
37557 }
37558 if (!atm_charge(vcc, sb->truesize)) {
37559 RXPRINTK
37560 ("nicstar%d: atm_charge() dropped aal0 packets.\n",
37561 card->index);
37562- atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37563+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37564 dev_kfree_skb_any(sb);
37565 break;
37566 }
37567@@ -2054,7 +2054,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37568 ATM_SKB(sb)->vcc = vcc;
37569 __net_timestamp(sb);
37570 vcc->push(vcc, sb);
37571- atomic_inc(&vcc->stats->rx);
37572+ atomic_inc_unchecked(&vcc->stats->rx);
37573 cell += ATM_CELL_PAYLOAD;
37574 }
37575
37576@@ -2071,7 +2071,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37577 if (iovb == NULL) {
37578 printk("nicstar%d: Out of iovec buffers.\n",
37579 card->index);
37580- atomic_inc(&vcc->stats->rx_drop);
37581+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37582 recycle_rx_buf(card, skb);
37583 return;
37584 }
37585@@ -2095,7 +2095,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37586 small or large buffer itself. */
37587 } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
37588 printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
37589- atomic_inc(&vcc->stats->rx_err);
37590+ atomic_inc_unchecked(&vcc->stats->rx_err);
37591 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37592 NS_MAX_IOVECS);
37593 NS_PRV_IOVCNT(iovb) = 0;
37594@@ -2115,7 +2115,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37595 ("nicstar%d: Expected a small buffer, and this is not one.\n",
37596 card->index);
37597 which_list(card, skb);
37598- atomic_inc(&vcc->stats->rx_err);
37599+ atomic_inc_unchecked(&vcc->stats->rx_err);
37600 recycle_rx_buf(card, skb);
37601 vc->rx_iov = NULL;
37602 recycle_iov_buf(card, iovb);
37603@@ -2128,7 +2128,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37604 ("nicstar%d: Expected a large buffer, and this is not one.\n",
37605 card->index);
37606 which_list(card, skb);
37607- atomic_inc(&vcc->stats->rx_err);
37608+ atomic_inc_unchecked(&vcc->stats->rx_err);
37609 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37610 NS_PRV_IOVCNT(iovb));
37611 vc->rx_iov = NULL;
37612@@ -2151,7 +2151,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37613 printk(" - PDU size mismatch.\n");
37614 else
37615 printk(".\n");
37616- atomic_inc(&vcc->stats->rx_err);
37617+ atomic_inc_unchecked(&vcc->stats->rx_err);
37618 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37619 NS_PRV_IOVCNT(iovb));
37620 vc->rx_iov = NULL;
37621@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37622 /* skb points to a small buffer */
37623 if (!atm_charge(vcc, skb->truesize)) {
37624 push_rxbufs(card, skb);
37625- atomic_inc(&vcc->stats->rx_drop);
37626+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37627 } else {
37628 skb_put(skb, len);
37629 dequeue_sm_buf(card, skb);
37630@@ -2175,7 +2175,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37631 ATM_SKB(skb)->vcc = vcc;
37632 __net_timestamp(skb);
37633 vcc->push(vcc, skb);
37634- atomic_inc(&vcc->stats->rx);
37635+ atomic_inc_unchecked(&vcc->stats->rx);
37636 }
37637 } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */
37638 struct sk_buff *sb;
37639@@ -2186,7 +2186,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37640 if (len <= NS_SMBUFSIZE) {
37641 if (!atm_charge(vcc, sb->truesize)) {
37642 push_rxbufs(card, sb);
37643- atomic_inc(&vcc->stats->rx_drop);
37644+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37645 } else {
37646 skb_put(sb, len);
37647 dequeue_sm_buf(card, sb);
37648@@ -2196,7 +2196,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37649 ATM_SKB(sb)->vcc = vcc;
37650 __net_timestamp(sb);
37651 vcc->push(vcc, sb);
37652- atomic_inc(&vcc->stats->rx);
37653+ atomic_inc_unchecked(&vcc->stats->rx);
37654 }
37655
37656 push_rxbufs(card, skb);
37657@@ -2205,7 +2205,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37658
37659 if (!atm_charge(vcc, skb->truesize)) {
37660 push_rxbufs(card, skb);
37661- atomic_inc(&vcc->stats->rx_drop);
37662+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37663 } else {
37664 dequeue_lg_buf(card, skb);
37665 #ifdef NS_USE_DESTRUCTORS
37666@@ -2218,7 +2218,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37667 ATM_SKB(skb)->vcc = vcc;
37668 __net_timestamp(skb);
37669 vcc->push(vcc, skb);
37670- atomic_inc(&vcc->stats->rx);
37671+ atomic_inc_unchecked(&vcc->stats->rx);
37672 }
37673
37674 push_rxbufs(card, sb);
37675@@ -2239,7 +2239,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37676 printk
37677 ("nicstar%d: Out of huge buffers.\n",
37678 card->index);
37679- atomic_inc(&vcc->stats->rx_drop);
37680+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37681 recycle_iovec_rx_bufs(card,
37682 (struct iovec *)
37683 iovb->data,
37684@@ -2290,7 +2290,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37685 card->hbpool.count++;
37686 } else
37687 dev_kfree_skb_any(hb);
37688- atomic_inc(&vcc->stats->rx_drop);
37689+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37690 } else {
37691 /* Copy the small buffer to the huge buffer */
37692 sb = (struct sk_buff *)iov->iov_base;
37693@@ -2327,7 +2327,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37694 #endif /* NS_USE_DESTRUCTORS */
37695 __net_timestamp(hb);
37696 vcc->push(vcc, hb);
37697- atomic_inc(&vcc->stats->rx);
37698+ atomic_inc_unchecked(&vcc->stats->rx);
37699 }
37700 }
37701
37702diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
37703index 74e18b0..f16afa0 100644
37704--- a/drivers/atm/solos-pci.c
37705+++ b/drivers/atm/solos-pci.c
37706@@ -838,7 +838,7 @@ static void solos_bh(unsigned long card_arg)
37707 }
37708 atm_charge(vcc, skb->truesize);
37709 vcc->push(vcc, skb);
37710- atomic_inc(&vcc->stats->rx);
37711+ atomic_inc_unchecked(&vcc->stats->rx);
37712 break;
37713
37714 case PKT_STATUS:
37715@@ -1116,7 +1116,7 @@ static uint32_t fpga_tx(struct solos_card *card)
37716 vcc = SKB_CB(oldskb)->vcc;
37717
37718 if (vcc) {
37719- atomic_inc(&vcc->stats->tx);
37720+ atomic_inc_unchecked(&vcc->stats->tx);
37721 solos_pop(vcc, oldskb);
37722 } else {
37723 dev_kfree_skb_irq(oldskb);
37724diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
37725index 0215934..ce9f5b1 100644
37726--- a/drivers/atm/suni.c
37727+++ b/drivers/atm/suni.c
37728@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
37729
37730
37731 #define ADD_LIMITED(s,v) \
37732- atomic_add((v),&stats->s); \
37733- if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
37734+ atomic_add_unchecked((v),&stats->s); \
37735+ if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
37736
37737
37738 static void suni_hz(unsigned long from_timer)
37739diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
37740index 5120a96..e2572bd 100644
37741--- a/drivers/atm/uPD98402.c
37742+++ b/drivers/atm/uPD98402.c
37743@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
37744 struct sonet_stats tmp;
37745 int error = 0;
37746
37747- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37748+ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37749 sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
37750 if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
37751 if (zero && !error) {
37752@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
37753
37754
37755 #define ADD_LIMITED(s,v) \
37756- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
37757- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
37758- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37759+ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
37760+ if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
37761+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37762
37763
37764 static void stat_event(struct atm_dev *dev)
37765@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
37766 if (reason & uPD98402_INT_PFM) stat_event(dev);
37767 if (reason & uPD98402_INT_PCO) {
37768 (void) GET(PCOCR); /* clear interrupt cause */
37769- atomic_add(GET(HECCT),
37770+ atomic_add_unchecked(GET(HECCT),
37771 &PRIV(dev)->sonet_stats.uncorr_hcs);
37772 }
37773 if ((reason & uPD98402_INT_RFO) &&
37774@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
37775 PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
37776 uPD98402_INT_LOS),PIMR); /* enable them */
37777 (void) fetch_stats(dev,NULL,1); /* clear kernel counters */
37778- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37779- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
37780- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
37781+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37782+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
37783+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
37784 return 0;
37785 }
37786
37787diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
37788index cecfb94..87009ec 100644
37789--- a/drivers/atm/zatm.c
37790+++ b/drivers/atm/zatm.c
37791@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37792 }
37793 if (!size) {
37794 dev_kfree_skb_irq(skb);
37795- if (vcc) atomic_inc(&vcc->stats->rx_err);
37796+ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
37797 continue;
37798 }
37799 if (!atm_charge(vcc,skb->truesize)) {
37800@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37801 skb->len = size;
37802 ATM_SKB(skb)->vcc = vcc;
37803 vcc->push(vcc,skb);
37804- atomic_inc(&vcc->stats->rx);
37805+ atomic_inc_unchecked(&vcc->stats->rx);
37806 }
37807 zout(pos & 0xffff,MTA(mbx));
37808 #if 0 /* probably a stupid idea */
37809@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
37810 skb_queue_head(&zatm_vcc->backlog,skb);
37811 break;
37812 }
37813- atomic_inc(&vcc->stats->tx);
37814+ atomic_inc_unchecked(&vcc->stats->tx);
37815 wake_up(&zatm_vcc->tx_wait);
37816 }
37817
37818diff --git a/drivers/base/bus.c b/drivers/base/bus.c
37819index 79bc203..fa3945b 100644
37820--- a/drivers/base/bus.c
37821+++ b/drivers/base/bus.c
37822@@ -1126,7 +1126,7 @@ int subsys_interface_register(struct subsys_interface *sif)
37823 return -EINVAL;
37824
37825 mutex_lock(&subsys->p->mutex);
37826- list_add_tail(&sif->node, &subsys->p->interfaces);
37827+ pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
37828 if (sif->add_dev) {
37829 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37830 while ((dev = subsys_dev_iter_next(&iter)))
37831@@ -1151,7 +1151,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
37832 subsys = sif->subsys;
37833
37834 mutex_lock(&subsys->p->mutex);
37835- list_del_init(&sif->node);
37836+ pax_list_del_init((struct list_head *)&sif->node);
37837 if (sif->remove_dev) {
37838 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37839 while ((dev = subsys_dev_iter_next(&iter)))
37840diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
37841index 25798db..15f130e 100644
37842--- a/drivers/base/devtmpfs.c
37843+++ b/drivers/base/devtmpfs.c
37844@@ -354,7 +354,7 @@ int devtmpfs_mount(const char *mntdir)
37845 if (!thread)
37846 return 0;
37847
37848- err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
37849+ err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
37850 if (err)
37851 printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
37852 else
37853@@ -380,11 +380,11 @@ static int devtmpfsd(void *p)
37854 *err = sys_unshare(CLONE_NEWNS);
37855 if (*err)
37856 goto out;
37857- *err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
37858+ *err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
37859 if (*err)
37860 goto out;
37861- sys_chdir("/.."); /* will traverse into overmounted root */
37862- sys_chroot(".");
37863+ sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
37864+ sys_chroot((char __force_user *)".");
37865 complete(&setup_done);
37866 while (1) {
37867 spin_lock(&req_lock);
37868diff --git a/drivers/base/node.c b/drivers/base/node.c
37869index 36fabe43..8cfc112 100644
37870--- a/drivers/base/node.c
37871+++ b/drivers/base/node.c
37872@@ -615,7 +615,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
37873 struct node_attr {
37874 struct device_attribute attr;
37875 enum node_states state;
37876-};
37877+} __do_const;
37878
37879 static ssize_t show_node_state(struct device *dev,
37880 struct device_attribute *attr, char *buf)
37881diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
37882index 45937f8..b9a342e 100644
37883--- a/drivers/base/power/domain.c
37884+++ b/drivers/base/power/domain.c
37885@@ -1698,7 +1698,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
37886 {
37887 struct cpuidle_driver *cpuidle_drv;
37888 struct gpd_cpuidle_data *cpuidle_data;
37889- struct cpuidle_state *idle_state;
37890+ cpuidle_state_no_const *idle_state;
37891 int ret = 0;
37892
37893 if (IS_ERR_OR_NULL(genpd) || state < 0)
37894@@ -1766,7 +1766,7 @@ int pm_genpd_name_attach_cpuidle(const char *name, int state)
37895 int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
37896 {
37897 struct gpd_cpuidle_data *cpuidle_data;
37898- struct cpuidle_state *idle_state;
37899+ cpuidle_state_no_const *idle_state;
37900 int ret = 0;
37901
37902 if (IS_ERR_OR_NULL(genpd))
37903@@ -2195,7 +2195,10 @@ int genpd_dev_pm_attach(struct device *dev)
37904 return ret;
37905 }
37906
37907- dev->pm_domain->detach = genpd_dev_pm_detach;
37908+ pax_open_kernel();
37909+ *(void **)&dev->pm_domain->detach = genpd_dev_pm_detach;
37910+ pax_close_kernel();
37911+
37912 pm_genpd_poweron(pd);
37913
37914 return 0;
37915diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
37916index d2be3f9..0a3167a 100644
37917--- a/drivers/base/power/sysfs.c
37918+++ b/drivers/base/power/sysfs.c
37919@@ -181,7 +181,7 @@ static ssize_t rtpm_status_show(struct device *dev,
37920 return -EIO;
37921 }
37922 }
37923- return sprintf(buf, p);
37924+ return sprintf(buf, "%s", p);
37925 }
37926
37927 static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
37928diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
37929index aab7158..b172db2 100644
37930--- a/drivers/base/power/wakeup.c
37931+++ b/drivers/base/power/wakeup.c
37932@@ -32,14 +32,14 @@ static bool pm_abort_suspend __read_mostly;
37933 * They need to be modified together atomically, so it's better to use one
37934 * atomic variable to hold them both.
37935 */
37936-static atomic_t combined_event_count = ATOMIC_INIT(0);
37937+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
37938
37939 #define IN_PROGRESS_BITS (sizeof(int) * 4)
37940 #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1)
37941
37942 static void split_counters(unsigned int *cnt, unsigned int *inpr)
37943 {
37944- unsigned int comb = atomic_read(&combined_event_count);
37945+ unsigned int comb = atomic_read_unchecked(&combined_event_count);
37946
37947 *cnt = (comb >> IN_PROGRESS_BITS);
37948 *inpr = comb & MAX_IN_PROGRESS;
37949@@ -404,7 +404,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
37950 ws->start_prevent_time = ws->last_time;
37951
37952 /* Increment the counter of events in progress. */
37953- cec = atomic_inc_return(&combined_event_count);
37954+ cec = atomic_inc_return_unchecked(&combined_event_count);
37955
37956 trace_wakeup_source_activate(ws->name, cec);
37957 }
37958@@ -530,7 +530,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
37959 * Increment the counter of registered wakeup events and decrement the
37960 * couter of wakeup events in progress simultaneously.
37961 */
37962- cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
37963+ cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
37964 trace_wakeup_source_deactivate(ws->name, cec);
37965
37966 split_counters(&cnt, &inpr);
37967diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
37968index 8d98a32..61d3165 100644
37969--- a/drivers/base/syscore.c
37970+++ b/drivers/base/syscore.c
37971@@ -22,7 +22,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
37972 void register_syscore_ops(struct syscore_ops *ops)
37973 {
37974 mutex_lock(&syscore_ops_lock);
37975- list_add_tail(&ops->node, &syscore_ops_list);
37976+ pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
37977 mutex_unlock(&syscore_ops_lock);
37978 }
37979 EXPORT_SYMBOL_GPL(register_syscore_ops);
37980@@ -34,7 +34,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
37981 void unregister_syscore_ops(struct syscore_ops *ops)
37982 {
37983 mutex_lock(&syscore_ops_lock);
37984- list_del(&ops->node);
37985+ pax_list_del((struct list_head *)&ops->node);
37986 mutex_unlock(&syscore_ops_lock);
37987 }
37988 EXPORT_SYMBOL_GPL(unregister_syscore_ops);
37989diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
37990index ff20f19..018f1da 100644
37991--- a/drivers/block/cciss.c
37992+++ b/drivers/block/cciss.c
37993@@ -3008,7 +3008,7 @@ static void start_io(ctlr_info_t *h)
37994 while (!list_empty(&h->reqQ)) {
37995 c = list_entry(h->reqQ.next, CommandList_struct, list);
37996 /* can't do anything if fifo is full */
37997- if ((h->access.fifo_full(h))) {
37998+ if ((h->access->fifo_full(h))) {
37999 dev_warn(&h->pdev->dev, "fifo full\n");
38000 break;
38001 }
38002@@ -3018,7 +3018,7 @@ static void start_io(ctlr_info_t *h)
38003 h->Qdepth--;
38004
38005 /* Tell the controller execute command */
38006- h->access.submit_command(h, c);
38007+ h->access->submit_command(h, c);
38008
38009 /* Put job onto the completed Q */
38010 addQ(&h->cmpQ, c);
38011@@ -3444,17 +3444,17 @@ startio:
38012
38013 static inline unsigned long get_next_completion(ctlr_info_t *h)
38014 {
38015- return h->access.command_completed(h);
38016+ return h->access->command_completed(h);
38017 }
38018
38019 static inline int interrupt_pending(ctlr_info_t *h)
38020 {
38021- return h->access.intr_pending(h);
38022+ return h->access->intr_pending(h);
38023 }
38024
38025 static inline long interrupt_not_for_us(ctlr_info_t *h)
38026 {
38027- return ((h->access.intr_pending(h) == 0) ||
38028+ return ((h->access->intr_pending(h) == 0) ||
38029 (h->interrupts_enabled == 0));
38030 }
38031
38032@@ -3487,7 +3487,7 @@ static inline u32 next_command(ctlr_info_t *h)
38033 u32 a;
38034
38035 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
38036- return h->access.command_completed(h);
38037+ return h->access->command_completed(h);
38038
38039 if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
38040 a = *(h->reply_pool_head); /* Next cmd in ring buffer */
38041@@ -4044,7 +4044,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
38042 trans_support & CFGTBL_Trans_use_short_tags);
38043
38044 /* Change the access methods to the performant access methods */
38045- h->access = SA5_performant_access;
38046+ h->access = &SA5_performant_access;
38047 h->transMethod = CFGTBL_Trans_Performant;
38048
38049 return;
38050@@ -4318,7 +4318,7 @@ static int cciss_pci_init(ctlr_info_t *h)
38051 if (prod_index < 0)
38052 return -ENODEV;
38053 h->product_name = products[prod_index].product_name;
38054- h->access = *(products[prod_index].access);
38055+ h->access = products[prod_index].access;
38056
38057 if (cciss_board_disabled(h)) {
38058 dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
38059@@ -5050,7 +5050,7 @@ reinit_after_soft_reset:
38060 }
38061
38062 /* make sure the board interrupts are off */
38063- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38064+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38065 rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
38066 if (rc)
38067 goto clean2;
38068@@ -5100,7 +5100,7 @@ reinit_after_soft_reset:
38069 * fake ones to scoop up any residual completions.
38070 */
38071 spin_lock_irqsave(&h->lock, flags);
38072- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38073+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38074 spin_unlock_irqrestore(&h->lock, flags);
38075 free_irq(h->intr[h->intr_mode], h);
38076 rc = cciss_request_irq(h, cciss_msix_discard_completions,
38077@@ -5120,9 +5120,9 @@ reinit_after_soft_reset:
38078 dev_info(&h->pdev->dev, "Board READY.\n");
38079 dev_info(&h->pdev->dev,
38080 "Waiting for stale completions to drain.\n");
38081- h->access.set_intr_mask(h, CCISS_INTR_ON);
38082+ h->access->set_intr_mask(h, CCISS_INTR_ON);
38083 msleep(10000);
38084- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38085+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38086
38087 rc = controller_reset_failed(h->cfgtable);
38088 if (rc)
38089@@ -5145,7 +5145,7 @@ reinit_after_soft_reset:
38090 cciss_scsi_setup(h);
38091
38092 /* Turn the interrupts on so we can service requests */
38093- h->access.set_intr_mask(h, CCISS_INTR_ON);
38094+ h->access->set_intr_mask(h, CCISS_INTR_ON);
38095
38096 /* Get the firmware version */
38097 inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
38098@@ -5217,7 +5217,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
38099 kfree(flush_buf);
38100 if (return_code != IO_OK)
38101 dev_warn(&h->pdev->dev, "Error flushing cache\n");
38102- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38103+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38104 free_irq(h->intr[h->intr_mode], h);
38105 }
38106
38107diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
38108index 7fda30e..2f27946 100644
38109--- a/drivers/block/cciss.h
38110+++ b/drivers/block/cciss.h
38111@@ -101,7 +101,7 @@ struct ctlr_info
38112 /* information about each logical volume */
38113 drive_info_struct *drv[CISS_MAX_LUN];
38114
38115- struct access_method access;
38116+ struct access_method *access;
38117
38118 /* queue and queue Info */
38119 struct list_head reqQ;
38120@@ -402,27 +402,27 @@ static bool SA5_performant_intr_pending(ctlr_info_t *h)
38121 }
38122
38123 static struct access_method SA5_access = {
38124- SA5_submit_command,
38125- SA5_intr_mask,
38126- SA5_fifo_full,
38127- SA5_intr_pending,
38128- SA5_completed,
38129+ .submit_command = SA5_submit_command,
38130+ .set_intr_mask = SA5_intr_mask,
38131+ .fifo_full = SA5_fifo_full,
38132+ .intr_pending = SA5_intr_pending,
38133+ .command_completed = SA5_completed,
38134 };
38135
38136 static struct access_method SA5B_access = {
38137- SA5_submit_command,
38138- SA5B_intr_mask,
38139- SA5_fifo_full,
38140- SA5B_intr_pending,
38141- SA5_completed,
38142+ .submit_command = SA5_submit_command,
38143+ .set_intr_mask = SA5B_intr_mask,
38144+ .fifo_full = SA5_fifo_full,
38145+ .intr_pending = SA5B_intr_pending,
38146+ .command_completed = SA5_completed,
38147 };
38148
38149 static struct access_method SA5_performant_access = {
38150- SA5_submit_command,
38151- SA5_performant_intr_mask,
38152- SA5_fifo_full,
38153- SA5_performant_intr_pending,
38154- SA5_performant_completed,
38155+ .submit_command = SA5_submit_command,
38156+ .set_intr_mask = SA5_performant_intr_mask,
38157+ .fifo_full = SA5_fifo_full,
38158+ .intr_pending = SA5_performant_intr_pending,
38159+ .command_completed = SA5_performant_completed,
38160 };
38161
38162 struct board_type {
38163diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
38164index 2b94403..fd6ad1f 100644
38165--- a/drivers/block/cpqarray.c
38166+++ b/drivers/block/cpqarray.c
38167@@ -404,7 +404,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
38168 if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
38169 goto Enomem4;
38170 }
38171- hba[i]->access.set_intr_mask(hba[i], 0);
38172+ hba[i]->access->set_intr_mask(hba[i], 0);
38173 if (request_irq(hba[i]->intr, do_ida_intr,
38174 IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
38175 {
38176@@ -459,7 +459,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
38177 add_timer(&hba[i]->timer);
38178
38179 /* Enable IRQ now that spinlock and rate limit timer are set up */
38180- hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
38181+ hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
38182
38183 for(j=0; j<NWD; j++) {
38184 struct gendisk *disk = ida_gendisk[i][j];
38185@@ -694,7 +694,7 @@ DBGINFO(
38186 for(i=0; i<NR_PRODUCTS; i++) {
38187 if (board_id == products[i].board_id) {
38188 c->product_name = products[i].product_name;
38189- c->access = *(products[i].access);
38190+ c->access = products[i].access;
38191 break;
38192 }
38193 }
38194@@ -792,7 +792,7 @@ static int cpqarray_eisa_detect(void)
38195 hba[ctlr]->intr = intr;
38196 sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
38197 hba[ctlr]->product_name = products[j].product_name;
38198- hba[ctlr]->access = *(products[j].access);
38199+ hba[ctlr]->access = products[j].access;
38200 hba[ctlr]->ctlr = ctlr;
38201 hba[ctlr]->board_id = board_id;
38202 hba[ctlr]->pci_dev = NULL; /* not PCI */
38203@@ -978,7 +978,7 @@ static void start_io(ctlr_info_t *h)
38204
38205 while((c = h->reqQ) != NULL) {
38206 /* Can't do anything if we're busy */
38207- if (h->access.fifo_full(h) == 0)
38208+ if (h->access->fifo_full(h) == 0)
38209 return;
38210
38211 /* Get the first entry from the request Q */
38212@@ -986,7 +986,7 @@ static void start_io(ctlr_info_t *h)
38213 h->Qdepth--;
38214
38215 /* Tell the controller to do our bidding */
38216- h->access.submit_command(h, c);
38217+ h->access->submit_command(h, c);
38218
38219 /* Get onto the completion Q */
38220 addQ(&h->cmpQ, c);
38221@@ -1048,7 +1048,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
38222 unsigned long flags;
38223 __u32 a,a1;
38224
38225- istat = h->access.intr_pending(h);
38226+ istat = h->access->intr_pending(h);
38227 /* Is this interrupt for us? */
38228 if (istat == 0)
38229 return IRQ_NONE;
38230@@ -1059,7 +1059,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
38231 */
38232 spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
38233 if (istat & FIFO_NOT_EMPTY) {
38234- while((a = h->access.command_completed(h))) {
38235+ while((a = h->access->command_completed(h))) {
38236 a1 = a; a &= ~3;
38237 if ((c = h->cmpQ) == NULL)
38238 {
38239@@ -1448,11 +1448,11 @@ static int sendcmd(
38240 /*
38241 * Disable interrupt
38242 */
38243- info_p->access.set_intr_mask(info_p, 0);
38244+ info_p->access->set_intr_mask(info_p, 0);
38245 /* Make sure there is room in the command FIFO */
38246 /* Actually it should be completely empty at this time. */
38247 for (i = 200000; i > 0; i--) {
38248- temp = info_p->access.fifo_full(info_p);
38249+ temp = info_p->access->fifo_full(info_p);
38250 if (temp != 0) {
38251 break;
38252 }
38253@@ -1465,7 +1465,7 @@ DBG(
38254 /*
38255 * Send the cmd
38256 */
38257- info_p->access.submit_command(info_p, c);
38258+ info_p->access->submit_command(info_p, c);
38259 complete = pollcomplete(ctlr);
38260
38261 pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr,
38262@@ -1548,9 +1548,9 @@ static int revalidate_allvol(ctlr_info_t *host)
38263 * we check the new geometry. Then turn interrupts back on when
38264 * we're done.
38265 */
38266- host->access.set_intr_mask(host, 0);
38267+ host->access->set_intr_mask(host, 0);
38268 getgeometry(ctlr);
38269- host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
38270+ host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
38271
38272 for(i=0; i<NWD; i++) {
38273 struct gendisk *disk = ida_gendisk[ctlr][i];
38274@@ -1590,7 +1590,7 @@ static int pollcomplete(int ctlr)
38275 /* Wait (up to 2 seconds) for a command to complete */
38276
38277 for (i = 200000; i > 0; i--) {
38278- done = hba[ctlr]->access.command_completed(hba[ctlr]);
38279+ done = hba[ctlr]->access->command_completed(hba[ctlr]);
38280 if (done == 0) {
38281 udelay(10); /* a short fixed delay */
38282 } else
38283diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
38284index be73e9d..7fbf140 100644
38285--- a/drivers/block/cpqarray.h
38286+++ b/drivers/block/cpqarray.h
38287@@ -99,7 +99,7 @@ struct ctlr_info {
38288 drv_info_t drv[NWD];
38289 struct proc_dir_entry *proc;
38290
38291- struct access_method access;
38292+ struct access_method *access;
38293
38294 cmdlist_t *reqQ;
38295 cmdlist_t *cmpQ;
38296diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
38297index 434c77d..6d3219a 100644
38298--- a/drivers/block/drbd/drbd_bitmap.c
38299+++ b/drivers/block/drbd/drbd_bitmap.c
38300@@ -1036,7 +1036,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
38301 submit_bio(rw, bio);
38302 /* this should not count as user activity and cause the
38303 * resync to throttle -- see drbd_rs_should_slow_down(). */
38304- atomic_add(len >> 9, &device->rs_sect_ev);
38305+ atomic_add_unchecked(len >> 9, &device->rs_sect_ev);
38306 }
38307 }
38308
38309diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
38310index b905e98..0812ed8 100644
38311--- a/drivers/block/drbd/drbd_int.h
38312+++ b/drivers/block/drbd/drbd_int.h
38313@@ -385,7 +385,7 @@ struct drbd_epoch {
38314 struct drbd_connection *connection;
38315 struct list_head list;
38316 unsigned int barrier_nr;
38317- atomic_t epoch_size; /* increased on every request added. */
38318+ atomic_unchecked_t epoch_size; /* increased on every request added. */
38319 atomic_t active; /* increased on every req. added, and dec on every finished. */
38320 unsigned long flags;
38321 };
38322@@ -946,7 +946,7 @@ struct drbd_device {
38323 unsigned int al_tr_number;
38324 int al_tr_cycle;
38325 wait_queue_head_t seq_wait;
38326- atomic_t packet_seq;
38327+ atomic_unchecked_t packet_seq;
38328 unsigned int peer_seq;
38329 spinlock_t peer_seq_lock;
38330 unsigned long comm_bm_set; /* communicated number of set bits. */
38331@@ -955,8 +955,8 @@ struct drbd_device {
38332 struct mutex own_state_mutex;
38333 struct mutex *state_mutex; /* either own_state_mutex or first_peer_device(device)->connection->cstate_mutex */
38334 char congestion_reason; /* Why we where congested... */
38335- atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
38336- atomic_t rs_sect_ev; /* for submitted resync data rate, both */
38337+ atomic_unchecked_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
38338+ atomic_unchecked_t rs_sect_ev; /* for submitted resync data rate, both */
38339 int rs_last_sect_ev; /* counter to compare with */
38340 int rs_last_events; /* counter of read or write "events" (unit sectors)
38341 * on the lower level device when we last looked. */
38342diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
38343index 1fc8342..7e7742b 100644
38344--- a/drivers/block/drbd/drbd_main.c
38345+++ b/drivers/block/drbd/drbd_main.c
38346@@ -1328,7 +1328,7 @@ static int _drbd_send_ack(struct drbd_peer_device *peer_device, enum drbd_packet
38347 p->sector = sector;
38348 p->block_id = block_id;
38349 p->blksize = blksize;
38350- p->seq_num = cpu_to_be32(atomic_inc_return(&peer_device->device->packet_seq));
38351+ p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&peer_device->device->packet_seq));
38352 return drbd_send_command(peer_device, sock, cmd, sizeof(*p), NULL, 0);
38353 }
38354
38355@@ -1634,7 +1634,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
38356 return -EIO;
38357 p->sector = cpu_to_be64(req->i.sector);
38358 p->block_id = (unsigned long)req;
38359- p->seq_num = cpu_to_be32(atomic_inc_return(&device->packet_seq));
38360+ p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&device->packet_seq));
38361 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio->bi_rw);
38362 if (device->state.conn >= C_SYNC_SOURCE &&
38363 device->state.conn <= C_PAUSED_SYNC_T)
38364@@ -1915,8 +1915,8 @@ void drbd_init_set_defaults(struct drbd_device *device)
38365 atomic_set(&device->unacked_cnt, 0);
38366 atomic_set(&device->local_cnt, 0);
38367 atomic_set(&device->pp_in_use_by_net, 0);
38368- atomic_set(&device->rs_sect_in, 0);
38369- atomic_set(&device->rs_sect_ev, 0);
38370+ atomic_set_unchecked(&device->rs_sect_in, 0);
38371+ atomic_set_unchecked(&device->rs_sect_ev, 0);
38372 atomic_set(&device->ap_in_flight, 0);
38373 atomic_set(&device->md_io.in_use, 0);
38374
38375@@ -2684,8 +2684,8 @@ void drbd_destroy_connection(struct kref *kref)
38376 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
38377 struct drbd_resource *resource = connection->resource;
38378
38379- if (atomic_read(&connection->current_epoch->epoch_size) != 0)
38380- drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));
38381+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size) != 0)
38382+ drbd_err(connection, "epoch_size:%d\n", atomic_read_unchecked(&connection->current_epoch->epoch_size));
38383 kfree(connection->current_epoch);
38384
38385 idr_destroy(&connection->peer_devices);
38386diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
38387index 74df8cf..e41fc24 100644
38388--- a/drivers/block/drbd/drbd_nl.c
38389+++ b/drivers/block/drbd/drbd_nl.c
38390@@ -3637,13 +3637,13 @@ finish:
38391
38392 void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
38393 {
38394- static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
38395+ static atomic_unchecked_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
38396 struct sk_buff *msg;
38397 struct drbd_genlmsghdr *d_out;
38398 unsigned seq;
38399 int err = -ENOMEM;
38400
38401- seq = atomic_inc_return(&drbd_genl_seq);
38402+ seq = atomic_inc_return_unchecked(&drbd_genl_seq);
38403 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
38404 if (!msg)
38405 goto failed;
38406diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
38407index cee2035..22f66bd 100644
38408--- a/drivers/block/drbd/drbd_receiver.c
38409+++ b/drivers/block/drbd/drbd_receiver.c
38410@@ -870,7 +870,7 @@ int drbd_connected(struct drbd_peer_device *peer_device)
38411 struct drbd_device *device = peer_device->device;
38412 int err;
38413
38414- atomic_set(&device->packet_seq, 0);
38415+ atomic_set_unchecked(&device->packet_seq, 0);
38416 device->peer_seq = 0;
38417
38418 device->state_mutex = peer_device->connection->agreed_pro_version < 100 ?
38419@@ -1233,7 +1233,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
38420 do {
38421 next_epoch = NULL;
38422
38423- epoch_size = atomic_read(&epoch->epoch_size);
38424+ epoch_size = atomic_read_unchecked(&epoch->epoch_size);
38425
38426 switch (ev & ~EV_CLEANUP) {
38427 case EV_PUT:
38428@@ -1273,7 +1273,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
38429 rv = FE_DESTROYED;
38430 } else {
38431 epoch->flags = 0;
38432- atomic_set(&epoch->epoch_size, 0);
38433+ atomic_set_unchecked(&epoch->epoch_size, 0);
38434 /* atomic_set(&epoch->active, 0); is already zero */
38435 if (rv == FE_STILL_LIVE)
38436 rv = FE_RECYCLED;
38437@@ -1550,7 +1550,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
38438 conn_wait_active_ee_empty(connection);
38439 drbd_flush(connection);
38440
38441- if (atomic_read(&connection->current_epoch->epoch_size)) {
38442+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38443 epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
38444 if (epoch)
38445 break;
38446@@ -1564,11 +1564,11 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
38447 }
38448
38449 epoch->flags = 0;
38450- atomic_set(&epoch->epoch_size, 0);
38451+ atomic_set_unchecked(&epoch->epoch_size, 0);
38452 atomic_set(&epoch->active, 0);
38453
38454 spin_lock(&connection->epoch_lock);
38455- if (atomic_read(&connection->current_epoch->epoch_size)) {
38456+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38457 list_add(&epoch->list, &connection->current_epoch->list);
38458 connection->current_epoch = epoch;
38459 connection->epochs++;
38460@@ -1802,7 +1802,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
38461 list_add_tail(&peer_req->w.list, &device->sync_ee);
38462 spin_unlock_irq(&device->resource->req_lock);
38463
38464- atomic_add(pi->size >> 9, &device->rs_sect_ev);
38465+ atomic_add_unchecked(pi->size >> 9, &device->rs_sect_ev);
38466 if (drbd_submit_peer_request(device, peer_req, WRITE, DRBD_FAULT_RS_WR) == 0)
38467 return 0;
38468
38469@@ -1900,7 +1900,7 @@ static int receive_RSDataReply(struct drbd_connection *connection, struct packet
38470 drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
38471 }
38472
38473- atomic_add(pi->size >> 9, &device->rs_sect_in);
38474+ atomic_add_unchecked(pi->size >> 9, &device->rs_sect_in);
38475
38476 return err;
38477 }
38478@@ -2290,7 +2290,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38479
38480 err = wait_for_and_update_peer_seq(peer_device, peer_seq);
38481 drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
38482- atomic_inc(&connection->current_epoch->epoch_size);
38483+ atomic_inc_unchecked(&connection->current_epoch->epoch_size);
38484 err2 = drbd_drain_block(peer_device, pi->size);
38485 if (!err)
38486 err = err2;
38487@@ -2334,7 +2334,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38488
38489 spin_lock(&connection->epoch_lock);
38490 peer_req->epoch = connection->current_epoch;
38491- atomic_inc(&peer_req->epoch->epoch_size);
38492+ atomic_inc_unchecked(&peer_req->epoch->epoch_size);
38493 atomic_inc(&peer_req->epoch->active);
38494 spin_unlock(&connection->epoch_lock);
38495
38496@@ -2479,7 +2479,7 @@ bool drbd_rs_c_min_rate_throttle(struct drbd_device *device)
38497
38498 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
38499 (int)part_stat_read(&disk->part0, sectors[1]) -
38500- atomic_read(&device->rs_sect_ev);
38501+ atomic_read_unchecked(&device->rs_sect_ev);
38502
38503 if (atomic_read(&device->ap_actlog_cnt)
38504 || curr_events - device->rs_last_events > 64) {
38505@@ -2618,7 +2618,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
38506 device->use_csums = true;
38507 } else if (pi->cmd == P_OV_REPLY) {
38508 /* track progress, we may need to throttle */
38509- atomic_add(size >> 9, &device->rs_sect_in);
38510+ atomic_add_unchecked(size >> 9, &device->rs_sect_in);
38511 peer_req->w.cb = w_e_end_ov_reply;
38512 dec_rs_pending(device);
38513 /* drbd_rs_begin_io done when we sent this request,
38514@@ -2691,7 +2691,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
38515 goto out_free_e;
38516
38517 submit_for_resync:
38518- atomic_add(size >> 9, &device->rs_sect_ev);
38519+ atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
38520
38521 submit:
38522 update_receiver_timing_details(connection, drbd_submit_peer_request);
38523@@ -4564,7 +4564,7 @@ struct data_cmd {
38524 int expect_payload;
38525 size_t pkt_size;
38526 int (*fn)(struct drbd_connection *, struct packet_info *);
38527-};
38528+} __do_const;
38529
38530 static struct data_cmd drbd_cmd_handler[] = {
38531 [P_DATA] = { 1, sizeof(struct p_data), receive_Data },
38532@@ -4678,7 +4678,7 @@ static void conn_disconnect(struct drbd_connection *connection)
38533 if (!list_empty(&connection->current_epoch->list))
38534 drbd_err(connection, "ASSERTION FAILED: connection->current_epoch->list not empty\n");
38535 /* ok, no more ee's on the fly, it is safe to reset the epoch_size */
38536- atomic_set(&connection->current_epoch->epoch_size, 0);
38537+ atomic_set_unchecked(&connection->current_epoch->epoch_size, 0);
38538 connection->send.seen_any_write_yet = false;
38539
38540 drbd_info(connection, "Connection closed\n");
38541@@ -5182,7 +5182,7 @@ static int got_IsInSync(struct drbd_connection *connection, struct packet_info *
38542 put_ldev(device);
38543 }
38544 dec_rs_pending(device);
38545- atomic_add(blksize >> 9, &device->rs_sect_in);
38546+ atomic_add_unchecked(blksize >> 9, &device->rs_sect_in);
38547
38548 return 0;
38549 }
38550@@ -5470,7 +5470,7 @@ static int connection_finish_peer_reqs(struct drbd_connection *connection)
38551 struct asender_cmd {
38552 size_t pkt_size;
38553 int (*fn)(struct drbd_connection *connection, struct packet_info *);
38554-};
38555+} __do_const;
38556
38557 static struct asender_cmd asender_tbl[] = {
38558 [P_PING] = { 0, got_Ping },
38559diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
38560index d0fae55..4469096 100644
38561--- a/drivers/block/drbd/drbd_worker.c
38562+++ b/drivers/block/drbd/drbd_worker.c
38563@@ -408,7 +408,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
38564 list_add_tail(&peer_req->w.list, &device->read_ee);
38565 spin_unlock_irq(&device->resource->req_lock);
38566
38567- atomic_add(size >> 9, &device->rs_sect_ev);
38568+ atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
38569 if (drbd_submit_peer_request(device, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
38570 return 0;
38571
38572@@ -553,7 +553,7 @@ static int drbd_rs_number_requests(struct drbd_device *device)
38573 unsigned int sect_in; /* Number of sectors that came in since the last turn */
38574 int number, mxb;
38575
38576- sect_in = atomic_xchg(&device->rs_sect_in, 0);
38577+ sect_in = atomic_xchg_unchecked(&device->rs_sect_in, 0);
38578 device->rs_in_flight -= sect_in;
38579
38580 rcu_read_lock();
38581@@ -1595,8 +1595,8 @@ void drbd_rs_controller_reset(struct drbd_device *device)
38582 struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
38583 struct fifo_buffer *plan;
38584
38585- atomic_set(&device->rs_sect_in, 0);
38586- atomic_set(&device->rs_sect_ev, 0);
38587+ atomic_set_unchecked(&device->rs_sect_in, 0);
38588+ atomic_set_unchecked(&device->rs_sect_ev, 0);
38589 device->rs_in_flight = 0;
38590 device->rs_last_events =
38591 (int)part_stat_read(&disk->part0, sectors[0]) +
38592diff --git a/drivers/block/loop.c b/drivers/block/loop.c
38593index 773e964..e85af00 100644
38594--- a/drivers/block/loop.c
38595+++ b/drivers/block/loop.c
38596@@ -234,7 +234,7 @@ static int __do_lo_send_write(struct file *file,
38597
38598 file_start_write(file);
38599 set_fs(get_ds());
38600- bw = file->f_op->write(file, buf, len, &pos);
38601+ bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
38602 set_fs(old_fs);
38603 file_end_write(file);
38604 if (likely(bw == len))
38605diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
38606index 09e628da..7607aaa 100644
38607--- a/drivers/block/pktcdvd.c
38608+++ b/drivers/block/pktcdvd.c
38609@@ -108,7 +108,7 @@ static int pkt_seq_show(struct seq_file *m, void *p);
38610
38611 static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
38612 {
38613- return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1);
38614+ return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1UL);
38615 }
38616
38617 /*
38618@@ -1890,7 +1890,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
38619 return -EROFS;
38620 }
38621 pd->settings.fp = ti.fp;
38622- pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
38623+ pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1UL);
38624
38625 if (ti.nwa_v) {
38626 pd->nwa = be32_to_cpu(ti.next_writable);
38627diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
38628index b67066d..515b7f4 100644
38629--- a/drivers/block/rbd.c
38630+++ b/drivers/block/rbd.c
38631@@ -64,7 +64,7 @@
38632 * If the counter is already at its maximum value returns
38633 * -EINVAL without updating it.
38634 */
38635-static int atomic_inc_return_safe(atomic_t *v)
38636+static int __intentional_overflow(-1) atomic_inc_return_safe(atomic_t *v)
38637 {
38638 unsigned int counter;
38639
38640diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h
38641index e5565fb..71be10b4 100644
38642--- a/drivers/block/smart1,2.h
38643+++ b/drivers/block/smart1,2.h
38644@@ -108,11 +108,11 @@ static unsigned long smart4_intr_pending(ctlr_info_t *h)
38645 }
38646
38647 static struct access_method smart4_access = {
38648- smart4_submit_command,
38649- smart4_intr_mask,
38650- smart4_fifo_full,
38651- smart4_intr_pending,
38652- smart4_completed,
38653+ .submit_command = smart4_submit_command,
38654+ .set_intr_mask = smart4_intr_mask,
38655+ .fifo_full = smart4_fifo_full,
38656+ .intr_pending = smart4_intr_pending,
38657+ .command_completed = smart4_completed,
38658 };
38659
38660 /*
38661@@ -144,11 +144,11 @@ static unsigned long smart2_intr_pending(ctlr_info_t *h)
38662 }
38663
38664 static struct access_method smart2_access = {
38665- smart2_submit_command,
38666- smart2_intr_mask,
38667- smart2_fifo_full,
38668- smart2_intr_pending,
38669- smart2_completed,
38670+ .submit_command = smart2_submit_command,
38671+ .set_intr_mask = smart2_intr_mask,
38672+ .fifo_full = smart2_fifo_full,
38673+ .intr_pending = smart2_intr_pending,
38674+ .command_completed = smart2_completed,
38675 };
38676
38677 /*
38678@@ -180,11 +180,11 @@ static unsigned long smart2e_intr_pending(ctlr_info_t *h)
38679 }
38680
38681 static struct access_method smart2e_access = {
38682- smart2e_submit_command,
38683- smart2e_intr_mask,
38684- smart2e_fifo_full,
38685- smart2e_intr_pending,
38686- smart2e_completed,
38687+ .submit_command = smart2e_submit_command,
38688+ .set_intr_mask = smart2e_intr_mask,
38689+ .fifo_full = smart2e_fifo_full,
38690+ .intr_pending = smart2e_intr_pending,
38691+ .command_completed = smart2e_completed,
38692 };
38693
38694 /*
38695@@ -270,9 +270,9 @@ static unsigned long smart1_intr_pending(ctlr_info_t *h)
38696 }
38697
38698 static struct access_method smart1_access = {
38699- smart1_submit_command,
38700- smart1_intr_mask,
38701- smart1_fifo_full,
38702- smart1_intr_pending,
38703- smart1_completed,
38704+ .submit_command = smart1_submit_command,
38705+ .set_intr_mask = smart1_intr_mask,
38706+ .fifo_full = smart1_fifo_full,
38707+ .intr_pending = smart1_intr_pending,
38708+ .command_completed = smart1_completed,
38709 };
38710diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
38711index 55c135b..9f8d60c 100644
38712--- a/drivers/bluetooth/btwilink.c
38713+++ b/drivers/bluetooth/btwilink.c
38714@@ -288,7 +288,7 @@ static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
38715
38716 static int bt_ti_probe(struct platform_device *pdev)
38717 {
38718- static struct ti_st *hst;
38719+ struct ti_st *hst;
38720 struct hci_dev *hdev;
38721 int err;
38722
38723diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
38724index 5d28a45..a538f90 100644
38725--- a/drivers/cdrom/cdrom.c
38726+++ b/drivers/cdrom/cdrom.c
38727@@ -610,7 +610,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
38728 ENSURE(reset, CDC_RESET);
38729 ENSURE(generic_packet, CDC_GENERIC_PACKET);
38730 cdi->mc_flags = 0;
38731- cdo->n_minors = 0;
38732 cdi->options = CDO_USE_FFLAGS;
38733
38734 if (autoclose == 1 && CDROM_CAN(CDC_CLOSE_TRAY))
38735@@ -630,8 +629,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
38736 else
38737 cdi->cdda_method = CDDA_OLD;
38738
38739- if (!cdo->generic_packet)
38740- cdo->generic_packet = cdrom_dummy_generic_packet;
38741+ if (!cdo->generic_packet) {
38742+ pax_open_kernel();
38743+ *(void **)&cdo->generic_packet = cdrom_dummy_generic_packet;
38744+ pax_close_kernel();
38745+ }
38746
38747 cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
38748 mutex_lock(&cdrom_mutex);
38749@@ -652,7 +654,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
38750 if (cdi->exit)
38751 cdi->exit(cdi);
38752
38753- cdi->ops->n_minors--;
38754 cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
38755 }
38756
38757@@ -2126,7 +2127,7 @@ static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf,
38758 */
38759 nr = nframes;
38760 do {
38761- cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38762+ cgc.buffer = kzalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38763 if (cgc.buffer)
38764 break;
38765
38766@@ -3434,7 +3435,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
38767 struct cdrom_device_info *cdi;
38768 int ret;
38769
38770- ret = scnprintf(info + *pos, max_size - *pos, header);
38771+ ret = scnprintf(info + *pos, max_size - *pos, "%s", header);
38772 if (!ret)
38773 return 1;
38774
38775diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
38776index 584bc31..e64a12c 100644
38777--- a/drivers/cdrom/gdrom.c
38778+++ b/drivers/cdrom/gdrom.c
38779@@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
38780 .audio_ioctl = gdrom_audio_ioctl,
38781 .capability = CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
38782 CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
38783- .n_minors = 1,
38784 };
38785
38786 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
38787diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
38788index a4af822..ed58cd1 100644
38789--- a/drivers/char/Kconfig
38790+++ b/drivers/char/Kconfig
38791@@ -17,7 +17,8 @@ config DEVMEM
38792
38793 config DEVKMEM
38794 bool "/dev/kmem virtual device support"
38795- default y
38796+ default n
38797+ depends on !GRKERNSEC_KMEM
38798 help
38799 Say Y here if you want to support the /dev/kmem device. The
38800 /dev/kmem device is rarely used, but can be used for certain
38801@@ -586,6 +587,7 @@ config DEVPORT
38802 bool
38803 depends on !M68K
38804 depends on ISA || PCI
38805+ depends on !GRKERNSEC_KMEM
38806 default y
38807
38808 source "drivers/s390/char/Kconfig"
38809diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
38810index a48e05b..6bac831 100644
38811--- a/drivers/char/agp/compat_ioctl.c
38812+++ b/drivers/char/agp/compat_ioctl.c
38813@@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
38814 return -ENOMEM;
38815 }
38816
38817- if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
38818+ if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
38819 sizeof(*usegment) * ureserve.seg_count)) {
38820 kfree(usegment);
38821 kfree(ksegment);
38822diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
38823index 09f17eb..8531d2f 100644
38824--- a/drivers/char/agp/frontend.c
38825+++ b/drivers/char/agp/frontend.c
38826@@ -806,7 +806,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38827 if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
38828 return -EFAULT;
38829
38830- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
38831+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
38832 return -EFAULT;
38833
38834 client = agp_find_client_by_pid(reserve.pid);
38835@@ -836,7 +836,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38836 if (segment == NULL)
38837 return -ENOMEM;
38838
38839- if (copy_from_user(segment, (void __user *) reserve.seg_list,
38840+ if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
38841 sizeof(struct agp_segment) * reserve.seg_count)) {
38842 kfree(segment);
38843 return -EFAULT;
38844diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
38845index 4f94375..413694e 100644
38846--- a/drivers/char/genrtc.c
38847+++ b/drivers/char/genrtc.c
38848@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *file,
38849 switch (cmd) {
38850
38851 case RTC_PLL_GET:
38852+ memset(&pll, 0, sizeof(pll));
38853 if (get_rtc_pll(&pll))
38854 return -EINVAL;
38855 else
38856diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
38857index 5c0baa9..44011b1 100644
38858--- a/drivers/char/hpet.c
38859+++ b/drivers/char/hpet.c
38860@@ -575,7 +575,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
38861 }
38862
38863 static int
38864-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
38865+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
38866 struct hpet_info *info)
38867 {
38868 struct hpet_timer __iomem *timer;
38869diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
38870index 24cc4ed..f9807cf 100644
38871--- a/drivers/char/i8k.c
38872+++ b/drivers/char/i8k.c
38873@@ -788,7 +788,7 @@ static const struct i8k_config_data i8k_config_data[] = {
38874 },
38875 };
38876
38877-static struct dmi_system_id i8k_dmi_table[] __initdata = {
38878+static const struct dmi_system_id i8k_dmi_table[] __initconst = {
38879 {
38880 .ident = "Dell Inspiron",
38881 .matches = {
38882diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
38883index 9bb5928..57a7801 100644
38884--- a/drivers/char/ipmi/ipmi_msghandler.c
38885+++ b/drivers/char/ipmi/ipmi_msghandler.c
38886@@ -436,7 +436,7 @@ struct ipmi_smi {
38887 struct proc_dir_entry *proc_dir;
38888 char proc_dir_name[10];
38889
38890- atomic_t stats[IPMI_NUM_STATS];
38891+ atomic_unchecked_t stats[IPMI_NUM_STATS];
38892
38893 /*
38894 * run_to_completion duplicate of smb_info, smi_info
38895@@ -468,9 +468,9 @@ static LIST_HEAD(smi_watchers);
38896 static DEFINE_MUTEX(smi_watchers_mutex);
38897
38898 #define ipmi_inc_stat(intf, stat) \
38899- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
38900+ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
38901 #define ipmi_get_stat(intf, stat) \
38902- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
38903+ ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
38904
38905 static char *addr_src_to_str[] = { "invalid", "hotmod", "hardcoded", "SPMI",
38906 "ACPI", "SMBIOS", "PCI",
38907@@ -2828,7 +2828,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
38908 INIT_LIST_HEAD(&intf->cmd_rcvrs);
38909 init_waitqueue_head(&intf->waitq);
38910 for (i = 0; i < IPMI_NUM_STATS; i++)
38911- atomic_set(&intf->stats[i], 0);
38912+ atomic_set_unchecked(&intf->stats[i], 0);
38913
38914 intf->proc_dir = NULL;
38915
38916diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
38917index 518585c..6c985cef 100644
38918--- a/drivers/char/ipmi/ipmi_si_intf.c
38919+++ b/drivers/char/ipmi/ipmi_si_intf.c
38920@@ -289,7 +289,7 @@ struct smi_info {
38921 unsigned char slave_addr;
38922
38923 /* Counters and things for the proc filesystem. */
38924- atomic_t stats[SI_NUM_STATS];
38925+ atomic_unchecked_t stats[SI_NUM_STATS];
38926
38927 struct task_struct *thread;
38928
38929@@ -298,9 +298,9 @@ struct smi_info {
38930 };
38931
38932 #define smi_inc_stat(smi, stat) \
38933- atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
38934+ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
38935 #define smi_get_stat(smi, stat) \
38936- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
38937+ ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
38938
38939 #define SI_MAX_PARMS 4
38940
38941@@ -3498,7 +3498,7 @@ static int try_smi_init(struct smi_info *new_smi)
38942 atomic_set(&new_smi->req_events, 0);
38943 new_smi->run_to_completion = false;
38944 for (i = 0; i < SI_NUM_STATS; i++)
38945- atomic_set(&new_smi->stats[i], 0);
38946+ atomic_set_unchecked(&new_smi->stats[i], 0);
38947
38948 new_smi->interrupt_disabled = true;
38949 atomic_set(&new_smi->need_watch, 0);
38950diff --git a/drivers/char/mem.c b/drivers/char/mem.c
38951index 297110c..3f69b43 100644
38952--- a/drivers/char/mem.c
38953+++ b/drivers/char/mem.c
38954@@ -18,6 +18,7 @@
38955 #include <linux/raw.h>
38956 #include <linux/tty.h>
38957 #include <linux/capability.h>
38958+#include <linux/security.h>
38959 #include <linux/ptrace.h>
38960 #include <linux/device.h>
38961 #include <linux/highmem.h>
38962@@ -36,6 +37,10 @@
38963
38964 #define DEVPORT_MINOR 4
38965
38966+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
38967+extern const struct file_operations grsec_fops;
38968+#endif
38969+
38970 static inline unsigned long size_inside_page(unsigned long start,
38971 unsigned long size)
38972 {
38973@@ -67,9 +72,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38974
38975 while (cursor < to) {
38976 if (!devmem_is_allowed(pfn)) {
38977+#ifdef CONFIG_GRKERNSEC_KMEM
38978+ gr_handle_mem_readwrite(from, to);
38979+#else
38980 printk(KERN_INFO
38981 "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
38982 current->comm, from, to);
38983+#endif
38984 return 0;
38985 }
38986 cursor += PAGE_SIZE;
38987@@ -77,6 +86,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38988 }
38989 return 1;
38990 }
38991+#elif defined(CONFIG_GRKERNSEC_KMEM)
38992+static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38993+{
38994+ return 0;
38995+}
38996 #else
38997 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38998 {
38999@@ -124,7 +138,8 @@ static ssize_t read_mem(struct file *file, char __user *buf,
39000 #endif
39001
39002 while (count > 0) {
39003- unsigned long remaining;
39004+ unsigned long remaining = 0;
39005+ char *temp;
39006
39007 sz = size_inside_page(p, count);
39008
39009@@ -140,7 +155,24 @@ static ssize_t read_mem(struct file *file, char __user *buf,
39010 if (!ptr)
39011 return -EFAULT;
39012
39013- remaining = copy_to_user(buf, ptr, sz);
39014+#ifdef CONFIG_PAX_USERCOPY
39015+ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
39016+ if (!temp) {
39017+ unxlate_dev_mem_ptr(p, ptr);
39018+ return -ENOMEM;
39019+ }
39020+ remaining = probe_kernel_read(temp, ptr, sz);
39021+#else
39022+ temp = ptr;
39023+#endif
39024+
39025+ if (!remaining)
39026+ remaining = copy_to_user(buf, temp, sz);
39027+
39028+#ifdef CONFIG_PAX_USERCOPY
39029+ kfree(temp);
39030+#endif
39031+
39032 unxlate_dev_mem_ptr(p, ptr);
39033 if (remaining)
39034 return -EFAULT;
39035@@ -380,9 +412,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39036 size_t count, loff_t *ppos)
39037 {
39038 unsigned long p = *ppos;
39039- ssize_t low_count, read, sz;
39040+ ssize_t low_count, read, sz, err = 0;
39041 char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
39042- int err = 0;
39043
39044 read = 0;
39045 if (p < (unsigned long) high_memory) {
39046@@ -404,6 +435,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39047 }
39048 #endif
39049 while (low_count > 0) {
39050+ char *temp;
39051+
39052 sz = size_inside_page(p, low_count);
39053
39054 /*
39055@@ -413,7 +446,23 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39056 */
39057 kbuf = xlate_dev_kmem_ptr((void *)p);
39058
39059- if (copy_to_user(buf, kbuf, sz))
39060+#ifdef CONFIG_PAX_USERCOPY
39061+ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
39062+ if (!temp)
39063+ return -ENOMEM;
39064+ err = probe_kernel_read(temp, kbuf, sz);
39065+#else
39066+ temp = kbuf;
39067+#endif
39068+
39069+ if (!err)
39070+ err = copy_to_user(buf, temp, sz);
39071+
39072+#ifdef CONFIG_PAX_USERCOPY
39073+ kfree(temp);
39074+#endif
39075+
39076+ if (err)
39077 return -EFAULT;
39078 buf += sz;
39079 p += sz;
39080@@ -804,6 +853,9 @@ static const struct memdev {
39081 #ifdef CONFIG_PRINTK
39082 [11] = { "kmsg", 0644, &kmsg_fops, 0 },
39083 #endif
39084+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
39085+ [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, 0 },
39086+#endif
39087 };
39088
39089 static int memory_open(struct inode *inode, struct file *filp)
39090@@ -865,7 +917,7 @@ static int __init chr_dev_init(void)
39091 continue;
39092
39093 device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
39094- NULL, devlist[minor].name);
39095+ NULL, "%s", devlist[minor].name);
39096 }
39097
39098 return tty_init();
39099diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
39100index 9df78e2..01ba9ae 100644
39101--- a/drivers/char/nvram.c
39102+++ b/drivers/char/nvram.c
39103@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
39104
39105 spin_unlock_irq(&rtc_lock);
39106
39107- if (copy_to_user(buf, contents, tmp - contents))
39108+ if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
39109 return -EFAULT;
39110
39111 *ppos = i;
39112diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
39113index 0ea9986..e7b07e4 100644
39114--- a/drivers/char/pcmcia/synclink_cs.c
39115+++ b/drivers/char/pcmcia/synclink_cs.c
39116@@ -2345,7 +2345,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
39117
39118 if (debug_level >= DEBUG_LEVEL_INFO)
39119 printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
39120- __FILE__, __LINE__, info->device_name, port->count);
39121+ __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
39122
39123 if (tty_port_close_start(port, tty, filp) == 0)
39124 goto cleanup;
39125@@ -2363,7 +2363,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
39126 cleanup:
39127 if (debug_level >= DEBUG_LEVEL_INFO)
39128 printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
39129- tty->driver->name, port->count);
39130+ tty->driver->name, atomic_read(&port->count));
39131 }
39132
39133 /* Wait until the transmitter is empty.
39134@@ -2505,7 +2505,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
39135
39136 if (debug_level >= DEBUG_LEVEL_INFO)
39137 printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
39138- __FILE__, __LINE__, tty->driver->name, port->count);
39139+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
39140
39141 /* If port is closing, signal caller to try again */
39142 if (port->flags & ASYNC_CLOSING){
39143@@ -2525,11 +2525,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
39144 goto cleanup;
39145 }
39146 spin_lock(&port->lock);
39147- port->count++;
39148+ atomic_inc(&port->count);
39149 spin_unlock(&port->lock);
39150 spin_unlock_irqrestore(&info->netlock, flags);
39151
39152- if (port->count == 1) {
39153+ if (atomic_read(&port->count) == 1) {
39154 /* 1st open on this device, init hardware */
39155 retval = startup(info, tty);
39156 if (retval < 0)
39157@@ -3918,7 +3918,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
39158 unsigned short new_crctype;
39159
39160 /* return error if TTY interface open */
39161- if (info->port.count)
39162+ if (atomic_read(&info->port.count))
39163 return -EBUSY;
39164
39165 switch (encoding)
39166@@ -4022,7 +4022,7 @@ static int hdlcdev_open(struct net_device *dev)
39167
39168 /* arbitrate between network and tty opens */
39169 spin_lock_irqsave(&info->netlock, flags);
39170- if (info->port.count != 0 || info->netcount != 0) {
39171+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
39172 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
39173 spin_unlock_irqrestore(&info->netlock, flags);
39174 return -EBUSY;
39175@@ -4112,7 +4112,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
39176 printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
39177
39178 /* return error if TTY interface open */
39179- if (info->port.count)
39180+ if (atomic_read(&info->port.count))
39181 return -EBUSY;
39182
39183 if (cmd != SIOCWANDEV)
39184diff --git a/drivers/char/random.c b/drivers/char/random.c
39185index 9cd6968..6416f00 100644
39186--- a/drivers/char/random.c
39187+++ b/drivers/char/random.c
39188@@ -289,9 +289,6 @@
39189 /*
39190 * To allow fractional bits to be tracked, the entropy_count field is
39191 * denominated in units of 1/8th bits.
39192- *
39193- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
39194- * credit_entropy_bits() needs to be 64 bits wide.
39195 */
39196 #define ENTROPY_SHIFT 3
39197 #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
39198@@ -439,9 +436,9 @@ struct entropy_store {
39199 };
39200
39201 static void push_to_pool(struct work_struct *work);
39202-static __u32 input_pool_data[INPUT_POOL_WORDS];
39203-static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
39204-static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
39205+static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
39206+static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
39207+static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
39208
39209 static struct entropy_store input_pool = {
39210 .poolinfo = &poolinfo_table[0],
39211@@ -635,7 +632,7 @@ retry:
39212 /* The +2 corresponds to the /4 in the denominator */
39213
39214 do {
39215- unsigned int anfrac = min(pnfrac, pool_size/2);
39216+ u64 anfrac = min(pnfrac, pool_size/2);
39217 unsigned int add =
39218 ((pool_size - entropy_count)*anfrac*3) >> s;
39219
39220@@ -1207,7 +1204,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
39221
39222 extract_buf(r, tmp);
39223 i = min_t(int, nbytes, EXTRACT_SIZE);
39224- if (copy_to_user(buf, tmp, i)) {
39225+ if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
39226 ret = -EFAULT;
39227 break;
39228 }
39229@@ -1590,7 +1587,7 @@ static char sysctl_bootid[16];
39230 static int proc_do_uuid(struct ctl_table *table, int write,
39231 void __user *buffer, size_t *lenp, loff_t *ppos)
39232 {
39233- struct ctl_table fake_table;
39234+ ctl_table_no_const fake_table;
39235 unsigned char buf[64], tmp_uuid[16], *uuid;
39236
39237 uuid = table->data;
39238@@ -1620,7 +1617,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
39239 static int proc_do_entropy(struct ctl_table *table, int write,
39240 void __user *buffer, size_t *lenp, loff_t *ppos)
39241 {
39242- struct ctl_table fake_table;
39243+ ctl_table_no_const fake_table;
39244 int entropy_count;
39245
39246 entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
39247diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
39248index e496dae..3db53b6 100644
39249--- a/drivers/char/sonypi.c
39250+++ b/drivers/char/sonypi.c
39251@@ -54,6 +54,7 @@
39252
39253 #include <asm/uaccess.h>
39254 #include <asm/io.h>
39255+#include <asm/local.h>
39256
39257 #include <linux/sonypi.h>
39258
39259@@ -490,7 +491,7 @@ static struct sonypi_device {
39260 spinlock_t fifo_lock;
39261 wait_queue_head_t fifo_proc_list;
39262 struct fasync_struct *fifo_async;
39263- int open_count;
39264+ local_t open_count;
39265 int model;
39266 struct input_dev *input_jog_dev;
39267 struct input_dev *input_key_dev;
39268@@ -892,7 +893,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
39269 static int sonypi_misc_release(struct inode *inode, struct file *file)
39270 {
39271 mutex_lock(&sonypi_device.lock);
39272- sonypi_device.open_count--;
39273+ local_dec(&sonypi_device.open_count);
39274 mutex_unlock(&sonypi_device.lock);
39275 return 0;
39276 }
39277@@ -901,9 +902,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
39278 {
39279 mutex_lock(&sonypi_device.lock);
39280 /* Flush input queue on first open */
39281- if (!sonypi_device.open_count)
39282+ if (!local_read(&sonypi_device.open_count))
39283 kfifo_reset(&sonypi_device.fifo);
39284- sonypi_device.open_count++;
39285+ local_inc(&sonypi_device.open_count);
39286 mutex_unlock(&sonypi_device.lock);
39287
39288 return 0;
39289@@ -1491,7 +1492,7 @@ static struct platform_driver sonypi_driver = {
39290
39291 static struct platform_device *sonypi_platform_device;
39292
39293-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
39294+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
39295 {
39296 .ident = "Sony Vaio",
39297 .matches = {
39298diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
39299index 565a947..dcdc06e 100644
39300--- a/drivers/char/tpm/tpm_acpi.c
39301+++ b/drivers/char/tpm/tpm_acpi.c
39302@@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
39303 virt = acpi_os_map_iomem(start, len);
39304 if (!virt) {
39305 kfree(log->bios_event_log);
39306+ log->bios_event_log = NULL;
39307 printk("%s: ERROR - Unable to map memory\n", __func__);
39308 return -EIO;
39309 }
39310
39311- memcpy_fromio(log->bios_event_log, virt, len);
39312+ memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
39313
39314 acpi_os_unmap_iomem(virt, len);
39315 return 0;
39316diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
39317index 3a56a13..f8cbd25 100644
39318--- a/drivers/char/tpm/tpm_eventlog.c
39319+++ b/drivers/char/tpm/tpm_eventlog.c
39320@@ -95,7 +95,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
39321 event = addr;
39322
39323 if ((event->event_type == 0 && event->event_size == 0) ||
39324- ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
39325+ (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
39326 return NULL;
39327
39328 return addr;
39329@@ -120,7 +120,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
39330 return NULL;
39331
39332 if ((event->event_type == 0 && event->event_size == 0) ||
39333- ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
39334+ (event->event_size >= limit - v - sizeof(struct tcpa_event)))
39335 return NULL;
39336
39337 (*pos)++;
39338@@ -213,7 +213,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
39339 int i;
39340
39341 for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
39342- seq_putc(m, data[i]);
39343+ if (!seq_putc(m, data[i]))
39344+ return -EFAULT;
39345
39346 return 0;
39347 }
39348diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
39349index 72d7028..1586601 100644
39350--- a/drivers/char/virtio_console.c
39351+++ b/drivers/char/virtio_console.c
39352@@ -685,7 +685,7 @@ static ssize_t fill_readbuf(struct port *port, char __user *out_buf,
39353 if (to_user) {
39354 ssize_t ret;
39355
39356- ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
39357+ ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
39358 if (ret)
39359 return -EFAULT;
39360 } else {
39361@@ -789,7 +789,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
39362 if (!port_has_data(port) && !port->host_connected)
39363 return 0;
39364
39365- return fill_readbuf(port, ubuf, count, true);
39366+ return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
39367 }
39368
39369 static int wait_port_writable(struct port *port, bool nonblock)
39370diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
39371index 956b7e5..b655045 100644
39372--- a/drivers/clk/clk-composite.c
39373+++ b/drivers/clk/clk-composite.c
39374@@ -197,7 +197,7 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
39375 struct clk *clk;
39376 struct clk_init_data init;
39377 struct clk_composite *composite;
39378- struct clk_ops *clk_composite_ops;
39379+ clk_ops_no_const *clk_composite_ops;
39380
39381 composite = kzalloc(sizeof(*composite), GFP_KERNEL);
39382 if (!composite) {
39383diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
39384index 2e4f6d4..b4cf487 100644
39385--- a/drivers/clk/hisilicon/clk-hi3620.c
39386+++ b/drivers/clk/hisilicon/clk-hi3620.c
39387@@ -38,44 +38,44 @@
39388 #include "clk.h"
39389
39390 /* clock parent list */
39391-static const char *timer0_mux_p[] __initconst = { "osc32k", "timerclk01", };
39392-static const char *timer1_mux_p[] __initconst = { "osc32k", "timerclk01", };
39393-static const char *timer2_mux_p[] __initconst = { "osc32k", "timerclk23", };
39394-static const char *timer3_mux_p[] __initconst = { "osc32k", "timerclk23", };
39395-static const char *timer4_mux_p[] __initconst = { "osc32k", "timerclk45", };
39396-static const char *timer5_mux_p[] __initconst = { "osc32k", "timerclk45", };
39397-static const char *timer6_mux_p[] __initconst = { "osc32k", "timerclk67", };
39398-static const char *timer7_mux_p[] __initconst = { "osc32k", "timerclk67", };
39399-static const char *timer8_mux_p[] __initconst = { "osc32k", "timerclk89", };
39400-static const char *timer9_mux_p[] __initconst = { "osc32k", "timerclk89", };
39401-static const char *uart0_mux_p[] __initconst = { "osc26m", "pclk", };
39402-static const char *uart1_mux_p[] __initconst = { "osc26m", "pclk", };
39403-static const char *uart2_mux_p[] __initconst = { "osc26m", "pclk", };
39404-static const char *uart3_mux_p[] __initconst = { "osc26m", "pclk", };
39405-static const char *uart4_mux_p[] __initconst = { "osc26m", "pclk", };
39406-static const char *spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39407-static const char *spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39408-static const char *spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39409+static const char * const timer0_mux_p[] __initconst = { "osc32k", "timerclk01", };
39410+static const char * const timer1_mux_p[] __initconst = { "osc32k", "timerclk01", };
39411+static const char * const timer2_mux_p[] __initconst = { "osc32k", "timerclk23", };
39412+static const char * const timer3_mux_p[] __initconst = { "osc32k", "timerclk23", };
39413+static const char * const timer4_mux_p[] __initconst = { "osc32k", "timerclk45", };
39414+static const char * const timer5_mux_p[] __initconst = { "osc32k", "timerclk45", };
39415+static const char * const timer6_mux_p[] __initconst = { "osc32k", "timerclk67", };
39416+static const char * const timer7_mux_p[] __initconst = { "osc32k", "timerclk67", };
39417+static const char * const timer8_mux_p[] __initconst = { "osc32k", "timerclk89", };
39418+static const char * const timer9_mux_p[] __initconst = { "osc32k", "timerclk89", };
39419+static const char * const uart0_mux_p[] __initconst = { "osc26m", "pclk", };
39420+static const char * const uart1_mux_p[] __initconst = { "osc26m", "pclk", };
39421+static const char * const uart2_mux_p[] __initconst = { "osc26m", "pclk", };
39422+static const char * const uart3_mux_p[] __initconst = { "osc26m", "pclk", };
39423+static const char * const uart4_mux_p[] __initconst = { "osc26m", "pclk", };
39424+static const char * const spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39425+static const char * const spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39426+static const char * const spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39427 /* share axi parent */
39428-static const char *saxi_mux_p[] __initconst = { "armpll3", "armpll2", };
39429-static const char *pwm0_mux_p[] __initconst = { "osc32k", "osc26m", };
39430-static const char *pwm1_mux_p[] __initconst = { "osc32k", "osc26m", };
39431-static const char *sd_mux_p[] __initconst = { "armpll2", "armpll3", };
39432-static const char *mmc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39433-static const char *mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", };
39434-static const char *g2d_mux_p[] __initconst = { "armpll2", "armpll3", };
39435-static const char *venc_mux_p[] __initconst = { "armpll2", "armpll3", };
39436-static const char *vdec_mux_p[] __initconst = { "armpll2", "armpll3", };
39437-static const char *vpp_mux_p[] __initconst = { "armpll2", "armpll3", };
39438-static const char *edc0_mux_p[] __initconst = { "armpll2", "armpll3", };
39439-static const char *ldi0_mux_p[] __initconst = { "armpll2", "armpll4",
39440+static const char * const saxi_mux_p[] __initconst = { "armpll3", "armpll2", };
39441+static const char * const pwm0_mux_p[] __initconst = { "osc32k", "osc26m", };
39442+static const char * const pwm1_mux_p[] __initconst = { "osc32k", "osc26m", };
39443+static const char * const sd_mux_p[] __initconst = { "armpll2", "armpll3", };
39444+static const char * const mmc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39445+static const char * const mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", };
39446+static const char * const g2d_mux_p[] __initconst = { "armpll2", "armpll3", };
39447+static const char * const venc_mux_p[] __initconst = { "armpll2", "armpll3", };
39448+static const char * const vdec_mux_p[] __initconst = { "armpll2", "armpll3", };
39449+static const char * const vpp_mux_p[] __initconst = { "armpll2", "armpll3", };
39450+static const char * const edc0_mux_p[] __initconst = { "armpll2", "armpll3", };
39451+static const char * const ldi0_mux_p[] __initconst = { "armpll2", "armpll4",
39452 "armpll3", "armpll5", };
39453-static const char *edc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39454-static const char *ldi1_mux_p[] __initconst = { "armpll2", "armpll4",
39455+static const char * const edc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39456+static const char * const ldi1_mux_p[] __initconst = { "armpll2", "armpll4",
39457 "armpll3", "armpll5", };
39458-static const char *rclk_hsic_p[] __initconst = { "armpll3", "armpll2", };
39459-static const char *mmc2_mux_p[] __initconst = { "armpll2", "armpll3", };
39460-static const char *mmc3_mux_p[] __initconst = { "armpll2", "armpll3", };
39461+static const char * const rclk_hsic_p[] __initconst = { "armpll3", "armpll2", };
39462+static const char * const mmc2_mux_p[] __initconst = { "armpll2", "armpll3", };
39463+static const char * const mmc3_mux_p[] __initconst = { "armpll2", "armpll3", };
39464
39465
39466 /* fixed rate clocks */
39467diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
39468index 3f369c6..05f9ffd 100644
39469--- a/drivers/clk/hisilicon/clk-hix5hd2.c
39470+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
39471@@ -46,15 +46,15 @@ static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
39472 { HIX5HD2_FIXED_83M, "83m", NULL, CLK_IS_ROOT, 83333333, },
39473 };
39474
39475-static const char *sfc_mux_p[] __initconst = {
39476+static const char * const sfc_mux_p[] __initconst = {
39477 "24m", "150m", "200m", "100m", "75m", };
39478 static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};
39479
39480-static const char *sdio_mux_p[] __initconst = {
39481+static const char * const sdio_mux_p[] __initconst = {
39482 "75m", "100m", "50m", "15m", };
39483 static u32 sdio_mux_table[] = {0, 1, 2, 3};
39484
39485-static const char *fephy_mux_p[] __initconst = { "25m", "125m"};
39486+static const char * const fephy_mux_p[] __initconst = { "25m", "125m"};
39487 static u32 fephy_mux_table[] = {0, 1};
39488
39489
39490diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
39491index 7eb684c..147c6fc 100644
39492--- a/drivers/clk/rockchip/clk-rk3188.c
39493+++ b/drivers/clk/rockchip/clk-rk3188.c
39494@@ -704,7 +704,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
39495 GATE(ACLK_GPS, "aclk_gps", "aclk_peri", 0, RK2928_CLKGATE_CON(8), 13, GFLAGS),
39496 };
39497
39498-static const char *rk3188_critical_clocks[] __initconst = {
39499+static const char * const rk3188_critical_clocks[] __initconst = {
39500 "aclk_cpu",
39501 "aclk_peri",
39502 "hclk_peri",
39503diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c
39504index 05d7a0b..4fc131c 100644
39505--- a/drivers/clk/rockchip/clk-rk3288.c
39506+++ b/drivers/clk/rockchip/clk-rk3288.c
39507@@ -771,7 +771,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
39508 GATE(0, "pclk_isp_in", "ext_isp", 0, RK3288_CLKGATE_CON(16), 3, GFLAGS),
39509 };
39510
39511-static const char *rk3288_critical_clocks[] __initconst = {
39512+static const char * const rk3288_critical_clocks[] __initconst = {
39513 "aclk_cpu",
39514 "aclk_peri",
39515 "hclk_peri",
39516diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
39517index 58d2e3b..0c21b0d 100644
39518--- a/drivers/clk/rockchip/clk.h
39519+++ b/drivers/clk/rockchip/clk.h
39520@@ -182,7 +182,7 @@ struct clk *rockchip_clk_register_mmc(const char *name,
39521 const char **parent_names, u8 num_parents,
39522 void __iomem *reg, int shift);
39523
39524-#define PNAME(x) static const char *x[] __initconst
39525+#define PNAME(x) static const char * const x[] __initconst
39526
39527 enum rockchip_clk_branch_type {
39528 branch_composite,
39529diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h
39530index e4c7538..99c50cd 100644
39531--- a/drivers/clk/samsung/clk.h
39532+++ b/drivers/clk/samsung/clk.h
39533@@ -260,7 +260,7 @@ struct samsung_gate_clock {
39534 #define GATE_DA(_id, dname, cname, pname, o, b, f, gf, a) \
39535 __GATE(_id, dname, cname, pname, o, b, f, gf, a)
39536
39537-#define PNAME(x) static const char *x[] __initdata
39538+#define PNAME(x) static const char * const x[] __initconst
39539
39540 /**
39541 * struct samsung_clk_reg_dump: register dump of clock controller registers.
39542diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
39543index dd3a78c..386d49c 100644
39544--- a/drivers/clk/socfpga/clk-gate.c
39545+++ b/drivers/clk/socfpga/clk-gate.c
39546@@ -22,6 +22,7 @@
39547 #include <linux/mfd/syscon.h>
39548 #include <linux/of.h>
39549 #include <linux/regmap.h>
39550+#include <asm/pgtable.h>
39551
39552 #include "clk.h"
39553
39554@@ -174,7 +175,7 @@ static int socfpga_clk_prepare(struct clk_hw *hwclk)
39555 return 0;
39556 }
39557
39558-static struct clk_ops gateclk_ops = {
39559+static clk_ops_no_const gateclk_ops __read_only = {
39560 .prepare = socfpga_clk_prepare,
39561 .recalc_rate = socfpga_clk_recalc_rate,
39562 .get_parent = socfpga_clk_get_parent,
39563@@ -208,8 +209,10 @@ static void __init __socfpga_gate_init(struct device_node *node,
39564 socfpga_clk->hw.reg = clk_mgr_base_addr + clk_gate[0];
39565 socfpga_clk->hw.bit_idx = clk_gate[1];
39566
39567- gateclk_ops.enable = clk_gate_ops.enable;
39568- gateclk_ops.disable = clk_gate_ops.disable;
39569+ pax_open_kernel();
39570+ *(void **)&gateclk_ops.enable = clk_gate_ops.enable;
39571+ *(void **)&gateclk_ops.disable = clk_gate_ops.disable;
39572+ pax_close_kernel();
39573 }
39574
39575 rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
39576diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
39577index de6da95..c98278b 100644
39578--- a/drivers/clk/socfpga/clk-pll.c
39579+++ b/drivers/clk/socfpga/clk-pll.c
39580@@ -21,6 +21,7 @@
39581 #include <linux/io.h>
39582 #include <linux/of.h>
39583 #include <linux/of_address.h>
39584+#include <asm/pgtable.h>
39585
39586 #include "clk.h"
39587
39588@@ -76,7 +77,7 @@ static u8 clk_pll_get_parent(struct clk_hw *hwclk)
39589 CLK_MGR_PLL_CLK_SRC_MASK;
39590 }
39591
39592-static struct clk_ops clk_pll_ops = {
39593+static clk_ops_no_const clk_pll_ops __read_only = {
39594 .recalc_rate = clk_pll_recalc_rate,
39595 .get_parent = clk_pll_get_parent,
39596 };
39597@@ -120,8 +121,10 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
39598 pll_clk->hw.hw.init = &init;
39599
39600 pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
39601- clk_pll_ops.enable = clk_gate_ops.enable;
39602- clk_pll_ops.disable = clk_gate_ops.disable;
39603+ pax_open_kernel();
39604+ *(void **)&clk_pll_ops.enable = clk_gate_ops.enable;
39605+ *(void **)&clk_pll_ops.disable = clk_gate_ops.disable;
39606+ pax_close_kernel();
39607
39608 clk = clk_register(NULL, &pll_clk->hw.hw);
39609 if (WARN_ON(IS_ERR(clk))) {
39610diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
39611index 3654f61..81abe81 100644
39612--- a/drivers/clk/ti/composite.c
39613+++ b/drivers/clk/ti/composite.c
39614@@ -69,7 +69,7 @@ struct component_clk {
39615 struct list_head link;
39616 };
39617
39618-static const char * __initconst component_clk_types[] = {
39619+static const char * const __initconst component_clk_types[] = {
39620 "gate", "divider", "mux"
39621 };
39622
39623diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
39624index f870aad..04ba1e4 100644
39625--- a/drivers/clk/zynq/clkc.c
39626+++ b/drivers/clk/zynq/clkc.c
39627@@ -85,22 +85,22 @@ static DEFINE_SPINLOCK(canmioclk_lock);
39628 static DEFINE_SPINLOCK(dbgclk_lock);
39629 static DEFINE_SPINLOCK(aperclk_lock);
39630
39631-static const char *armpll_parents[] __initconst = {"armpll_int", "ps_clk"};
39632-static const char *ddrpll_parents[] __initconst = {"ddrpll_int", "ps_clk"};
39633-static const char *iopll_parents[] __initconst = {"iopll_int", "ps_clk"};
39634-static const char *gem0_mux_parents[] __initconst = {"gem0_div1", "dummy_name"};
39635-static const char *gem1_mux_parents[] __initconst = {"gem1_div1", "dummy_name"};
39636-static const char *can0_mio_mux2_parents[] __initconst = {"can0_gate",
39637+static const char * const armpll_parents[] __initconst = {"armpll_int", "ps_clk"};
39638+static const char * const ddrpll_parents[] __initconst = {"ddrpll_int", "ps_clk"};
39639+static const char * const iopll_parents[] __initconst = {"iopll_int", "ps_clk"};
39640+static const char * gem0_mux_parents[] __initdata = {"gem0_div1", "dummy_name"};
39641+static const char * gem1_mux_parents[] __initdata = {"gem1_div1", "dummy_name"};
39642+static const char * const can0_mio_mux2_parents[] __initconst = {"can0_gate",
39643 "can0_mio_mux"};
39644-static const char *can1_mio_mux2_parents[] __initconst = {"can1_gate",
39645+static const char * const can1_mio_mux2_parents[] __initconst = {"can1_gate",
39646 "can1_mio_mux"};
39647-static const char *dbg_emio_mux_parents[] __initconst = {"dbg_div",
39648+static const char * dbg_emio_mux_parents[] __initdata = {"dbg_div",
39649 "dummy_name"};
39650
39651-static const char *dbgtrc_emio_input_names[] __initconst = {"trace_emio_clk"};
39652-static const char *gem0_emio_input_names[] __initconst = {"gem0_emio_clk"};
39653-static const char *gem1_emio_input_names[] __initconst = {"gem1_emio_clk"};
39654-static const char *swdt_ext_clk_input_names[] __initconst = {"swdt_ext_clk"};
39655+static const char * const dbgtrc_emio_input_names[] __initconst = {"trace_emio_clk"};
39656+static const char * const gem0_emio_input_names[] __initconst = {"gem0_emio_clk"};
39657+static const char * const gem1_emio_input_names[] __initconst = {"gem1_emio_clk"};
39658+static const char * const swdt_ext_clk_input_names[] __initconst = {"swdt_ext_clk"};
39659
39660 static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
39661 const char *clk_name, void __iomem *fclk_ctrl_reg,
39662diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
39663index b0c18ed..1713a80 100644
39664--- a/drivers/cpufreq/acpi-cpufreq.c
39665+++ b/drivers/cpufreq/acpi-cpufreq.c
39666@@ -675,8 +675,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39667 data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
39668 per_cpu(acfreq_data, cpu) = data;
39669
39670- if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
39671- acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39672+ if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
39673+ pax_open_kernel();
39674+ *(u8 *)&acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39675+ pax_close_kernel();
39676+ }
39677
39678 result = acpi_processor_register_performance(data->acpi_data, cpu);
39679 if (result)
39680@@ -809,7 +812,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39681 policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
39682 break;
39683 case ACPI_ADR_SPACE_FIXED_HARDWARE:
39684- acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39685+ pax_open_kernel();
39686+ *(void **)&acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39687+ pax_close_kernel();
39688 break;
39689 default:
39690 break;
39691@@ -903,8 +908,10 @@ static void __init acpi_cpufreq_boost_init(void)
39692 if (!msrs)
39693 return;
39694
39695- acpi_cpufreq_driver.boost_supported = true;
39696- acpi_cpufreq_driver.boost_enabled = boost_state(0);
39697+ pax_open_kernel();
39698+ *(bool *)&acpi_cpufreq_driver.boost_supported = true;
39699+ *(bool *)&acpi_cpufreq_driver.boost_enabled = boost_state(0);
39700+ pax_close_kernel();
39701
39702 cpu_notifier_register_begin();
39703
39704diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
39705index bab67db..91af7e3 100644
39706--- a/drivers/cpufreq/cpufreq-dt.c
39707+++ b/drivers/cpufreq/cpufreq-dt.c
39708@@ -392,7 +392,9 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
39709 if (!IS_ERR(cpu_reg))
39710 regulator_put(cpu_reg);
39711
39712- dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
39713+ pax_open_kernel();
39714+ *(void **)&dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
39715+ pax_close_kernel();
39716
39717 ret = cpufreq_register_driver(&dt_cpufreq_driver);
39718 if (ret)
39719diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
39720index 8ae655c..3141442 100644
39721--- a/drivers/cpufreq/cpufreq.c
39722+++ b/drivers/cpufreq/cpufreq.c
39723@@ -2108,7 +2108,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
39724 }
39725
39726 mutex_lock(&cpufreq_governor_mutex);
39727- list_del(&governor->governor_list);
39728+ pax_list_del(&governor->governor_list);
39729 mutex_unlock(&cpufreq_governor_mutex);
39730 return;
39731 }
39732@@ -2323,7 +2323,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
39733 return NOTIFY_OK;
39734 }
39735
39736-static struct notifier_block __refdata cpufreq_cpu_notifier = {
39737+static struct notifier_block cpufreq_cpu_notifier = {
39738 .notifier_call = cpufreq_cpu_callback,
39739 };
39740
39741@@ -2363,13 +2363,17 @@ int cpufreq_boost_trigger_state(int state)
39742 return 0;
39743
39744 write_lock_irqsave(&cpufreq_driver_lock, flags);
39745- cpufreq_driver->boost_enabled = state;
39746+ pax_open_kernel();
39747+ *(bool *)&cpufreq_driver->boost_enabled = state;
39748+ pax_close_kernel();
39749 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39750
39751 ret = cpufreq_driver->set_boost(state);
39752 if (ret) {
39753 write_lock_irqsave(&cpufreq_driver_lock, flags);
39754- cpufreq_driver->boost_enabled = !state;
39755+ pax_open_kernel();
39756+ *(bool *)&cpufreq_driver->boost_enabled = !state;
39757+ pax_close_kernel();
39758 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39759
39760 pr_err("%s: Cannot %s BOOST\n",
39761@@ -2434,16 +2438,22 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
39762 cpufreq_driver = driver_data;
39763 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39764
39765- if (driver_data->setpolicy)
39766- driver_data->flags |= CPUFREQ_CONST_LOOPS;
39767+ if (driver_data->setpolicy) {
39768+ pax_open_kernel();
39769+ *(u8 *)&driver_data->flags |= CPUFREQ_CONST_LOOPS;
39770+ pax_close_kernel();
39771+ }
39772
39773 if (cpufreq_boost_supported()) {
39774 /*
39775 * Check if driver provides function to enable boost -
39776 * if not, use cpufreq_boost_set_sw as default
39777 */
39778- if (!cpufreq_driver->set_boost)
39779- cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39780+ if (!cpufreq_driver->set_boost) {
39781+ pax_open_kernel();
39782+ *(void **)&cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39783+ pax_close_kernel();
39784+ }
39785
39786 ret = cpufreq_sysfs_create_file(&boost.attr);
39787 if (ret) {
39788diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
39789index 1b44496..b80ff5e 100644
39790--- a/drivers/cpufreq/cpufreq_governor.c
39791+++ b/drivers/cpufreq/cpufreq_governor.c
39792@@ -245,7 +245,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39793 struct dbs_data *dbs_data;
39794 struct od_cpu_dbs_info_s *od_dbs_info = NULL;
39795 struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
39796- struct od_ops *od_ops = NULL;
39797+ const struct od_ops *od_ops = NULL;
39798 struct od_dbs_tuners *od_tuners = NULL;
39799 struct cs_dbs_tuners *cs_tuners = NULL;
39800 struct cpu_dbs_common_info *cpu_cdbs;
39801@@ -311,7 +311,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39802
39803 if ((cdata->governor == GOV_CONSERVATIVE) &&
39804 (!policy->governor->initialized)) {
39805- struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39806+ const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39807
39808 cpufreq_register_notifier(cs_ops->notifier_block,
39809 CPUFREQ_TRANSITION_NOTIFIER);
39810@@ -331,7 +331,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39811
39812 if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
39813 (policy->governor->initialized == 1)) {
39814- struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39815+ const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39816
39817 cpufreq_unregister_notifier(cs_ops->notifier_block,
39818 CPUFREQ_TRANSITION_NOTIFIER);
39819diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
39820index cc401d1..8197340 100644
39821--- a/drivers/cpufreq/cpufreq_governor.h
39822+++ b/drivers/cpufreq/cpufreq_governor.h
39823@@ -212,7 +212,7 @@ struct common_dbs_data {
39824 void (*exit)(struct dbs_data *dbs_data);
39825
39826 /* Governor specific ops, see below */
39827- void *gov_ops;
39828+ const void *gov_ops;
39829 };
39830
39831 /* Governor Per policy data */
39832@@ -232,7 +232,7 @@ struct od_ops {
39833 unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
39834 unsigned int freq_next, unsigned int relation);
39835 void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq);
39836-};
39837+} __no_const;
39838
39839 struct cs_ops {
39840 struct notifier_block *notifier_block;
39841diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
39842index ad3f38f..8f086cd 100644
39843--- a/drivers/cpufreq/cpufreq_ondemand.c
39844+++ b/drivers/cpufreq/cpufreq_ondemand.c
39845@@ -524,7 +524,7 @@ static void od_exit(struct dbs_data *dbs_data)
39846
39847 define_get_cpu_dbs_routines(od_cpu_dbs_info);
39848
39849-static struct od_ops od_ops = {
39850+static struct od_ops od_ops __read_only = {
39851 .powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
39852 .powersave_bias_target = generic_powersave_bias_target,
39853 .freq_increase = dbs_freq_increase,
39854@@ -579,14 +579,18 @@ void od_register_powersave_bias_handler(unsigned int (*f)
39855 (struct cpufreq_policy *, unsigned int, unsigned int),
39856 unsigned int powersave_bias)
39857 {
39858- od_ops.powersave_bias_target = f;
39859+ pax_open_kernel();
39860+ *(void **)&od_ops.powersave_bias_target = f;
39861+ pax_close_kernel();
39862 od_set_powersave_bias(powersave_bias);
39863 }
39864 EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
39865
39866 void od_unregister_powersave_bias_handler(void)
39867 {
39868- od_ops.powersave_bias_target = generic_powersave_bias_target;
39869+ pax_open_kernel();
39870+ *(void **)&od_ops.powersave_bias_target = generic_powersave_bias_target;
39871+ pax_close_kernel();
39872 od_set_powersave_bias(0);
39873 }
39874 EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
39875diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
39876index 872c577..5fb3c20 100644
39877--- a/drivers/cpufreq/intel_pstate.c
39878+++ b/drivers/cpufreq/intel_pstate.c
39879@@ -133,10 +133,10 @@ struct pstate_funcs {
39880 struct cpu_defaults {
39881 struct pstate_adjust_policy pid_policy;
39882 struct pstate_funcs funcs;
39883-};
39884+} __do_const;
39885
39886 static struct pstate_adjust_policy pid_params;
39887-static struct pstate_funcs pstate_funcs;
39888+static struct pstate_funcs *pstate_funcs;
39889 static int hwp_active;
39890
39891 struct perf_limits {
39892@@ -690,18 +690,18 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
39893
39894 cpu->pstate.current_pstate = pstate;
39895
39896- pstate_funcs.set(cpu, pstate);
39897+ pstate_funcs->set(cpu, pstate);
39898 }
39899
39900 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
39901 {
39902- cpu->pstate.min_pstate = pstate_funcs.get_min();
39903- cpu->pstate.max_pstate = pstate_funcs.get_max();
39904- cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
39905- cpu->pstate.scaling = pstate_funcs.get_scaling();
39906+ cpu->pstate.min_pstate = pstate_funcs->get_min();
39907+ cpu->pstate.max_pstate = pstate_funcs->get_max();
39908+ cpu->pstate.turbo_pstate = pstate_funcs->get_turbo();
39909+ cpu->pstate.scaling = pstate_funcs->get_scaling();
39910
39911- if (pstate_funcs.get_vid)
39912- pstate_funcs.get_vid(cpu);
39913+ if (pstate_funcs->get_vid)
39914+ pstate_funcs->get_vid(cpu);
39915 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
39916 }
39917
39918@@ -1030,9 +1030,9 @@ static int intel_pstate_msrs_not_valid(void)
39919 rdmsrl(MSR_IA32_APERF, aperf);
39920 rdmsrl(MSR_IA32_MPERF, mperf);
39921
39922- if (!pstate_funcs.get_max() ||
39923- !pstate_funcs.get_min() ||
39924- !pstate_funcs.get_turbo())
39925+ if (!pstate_funcs->get_max() ||
39926+ !pstate_funcs->get_min() ||
39927+ !pstate_funcs->get_turbo())
39928 return -ENODEV;
39929
39930 rdmsrl(MSR_IA32_APERF, tmp);
39931@@ -1046,7 +1046,7 @@ static int intel_pstate_msrs_not_valid(void)
39932 return 0;
39933 }
39934
39935-static void copy_pid_params(struct pstate_adjust_policy *policy)
39936+static void copy_pid_params(const struct pstate_adjust_policy *policy)
39937 {
39938 pid_params.sample_rate_ms = policy->sample_rate_ms;
39939 pid_params.p_gain_pct = policy->p_gain_pct;
39940@@ -1058,12 +1058,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy)
39941
39942 static void copy_cpu_funcs(struct pstate_funcs *funcs)
39943 {
39944- pstate_funcs.get_max = funcs->get_max;
39945- pstate_funcs.get_min = funcs->get_min;
39946- pstate_funcs.get_turbo = funcs->get_turbo;
39947- pstate_funcs.get_scaling = funcs->get_scaling;
39948- pstate_funcs.set = funcs->set;
39949- pstate_funcs.get_vid = funcs->get_vid;
39950+ pstate_funcs = funcs;
39951 }
39952
39953 #if IS_ENABLED(CONFIG_ACPI)
39954diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
39955index 529cfd9..0e28fff 100644
39956--- a/drivers/cpufreq/p4-clockmod.c
39957+++ b/drivers/cpufreq/p4-clockmod.c
39958@@ -134,10 +134,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
39959 case 0x0F: /* Core Duo */
39960 case 0x16: /* Celeron Core */
39961 case 0x1C: /* Atom */
39962- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39963+ pax_open_kernel();
39964+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39965+ pax_close_kernel();
39966 return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
39967 case 0x0D: /* Pentium M (Dothan) */
39968- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39969+ pax_open_kernel();
39970+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39971+ pax_close_kernel();
39972 /* fall through */
39973 case 0x09: /* Pentium M (Banias) */
39974 return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
39975@@ -149,7 +153,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
39976
39977 /* on P-4s, the TSC runs with constant frequency independent whether
39978 * throttling is active or not. */
39979- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39980+ pax_open_kernel();
39981+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39982+ pax_close_kernel();
39983
39984 if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
39985 printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
39986diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
39987index 9bb42ba..b01b4a2 100644
39988--- a/drivers/cpufreq/sparc-us3-cpufreq.c
39989+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
39990@@ -18,14 +18,12 @@
39991 #include <asm/head.h>
39992 #include <asm/timer.h>
39993
39994-static struct cpufreq_driver *cpufreq_us3_driver;
39995-
39996 struct us3_freq_percpu_info {
39997 struct cpufreq_frequency_table table[4];
39998 };
39999
40000 /* Indexed by cpu number. */
40001-static struct us3_freq_percpu_info *us3_freq_table;
40002+static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
40003
40004 /* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled
40005 * in the Safari config register.
40006@@ -156,16 +154,27 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
40007
40008 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
40009 {
40010- if (cpufreq_us3_driver)
40011- us3_freq_target(policy, 0);
40012+ us3_freq_target(policy, 0);
40013
40014 return 0;
40015 }
40016
40017+static int __init us3_freq_init(void);
40018+static void __exit us3_freq_exit(void);
40019+
40020+static struct cpufreq_driver cpufreq_us3_driver = {
40021+ .init = us3_freq_cpu_init,
40022+ .verify = cpufreq_generic_frequency_table_verify,
40023+ .target_index = us3_freq_target,
40024+ .get = us3_freq_get,
40025+ .exit = us3_freq_cpu_exit,
40026+ .name = "UltraSPARC-III",
40027+
40028+};
40029+
40030 static int __init us3_freq_init(void)
40031 {
40032 unsigned long manuf, impl, ver;
40033- int ret;
40034
40035 if (tlb_type != cheetah && tlb_type != cheetah_plus)
40036 return -ENODEV;
40037@@ -178,55 +187,15 @@ static int __init us3_freq_init(void)
40038 (impl == CHEETAH_IMPL ||
40039 impl == CHEETAH_PLUS_IMPL ||
40040 impl == JAGUAR_IMPL ||
40041- impl == PANTHER_IMPL)) {
40042- struct cpufreq_driver *driver;
40043-
40044- ret = -ENOMEM;
40045- driver = kzalloc(sizeof(*driver), GFP_KERNEL);
40046- if (!driver)
40047- goto err_out;
40048-
40049- us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
40050- GFP_KERNEL);
40051- if (!us3_freq_table)
40052- goto err_out;
40053-
40054- driver->init = us3_freq_cpu_init;
40055- driver->verify = cpufreq_generic_frequency_table_verify;
40056- driver->target_index = us3_freq_target;
40057- driver->get = us3_freq_get;
40058- driver->exit = us3_freq_cpu_exit;
40059- strcpy(driver->name, "UltraSPARC-III");
40060-
40061- cpufreq_us3_driver = driver;
40062- ret = cpufreq_register_driver(driver);
40063- if (ret)
40064- goto err_out;
40065-
40066- return 0;
40067-
40068-err_out:
40069- if (driver) {
40070- kfree(driver);
40071- cpufreq_us3_driver = NULL;
40072- }
40073- kfree(us3_freq_table);
40074- us3_freq_table = NULL;
40075- return ret;
40076- }
40077+ impl == PANTHER_IMPL))
40078+ return cpufreq_register_driver(&cpufreq_us3_driver);
40079
40080 return -ENODEV;
40081 }
40082
40083 static void __exit us3_freq_exit(void)
40084 {
40085- if (cpufreq_us3_driver) {
40086- cpufreq_unregister_driver(cpufreq_us3_driver);
40087- kfree(cpufreq_us3_driver);
40088- cpufreq_us3_driver = NULL;
40089- kfree(us3_freq_table);
40090- us3_freq_table = NULL;
40091- }
40092+ cpufreq_unregister_driver(&cpufreq_us3_driver);
40093 }
40094
40095 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
40096diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
40097index 7d4a315..21bb886 100644
40098--- a/drivers/cpufreq/speedstep-centrino.c
40099+++ b/drivers/cpufreq/speedstep-centrino.c
40100@@ -351,8 +351,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
40101 !cpu_has(cpu, X86_FEATURE_EST))
40102 return -ENODEV;
40103
40104- if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
40105- centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
40106+ if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
40107+ pax_open_kernel();
40108+ *(u8 *)&centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
40109+ pax_close_kernel();
40110+ }
40111
40112 if (policy->cpu != 0)
40113 return -ENODEV;
40114diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
40115index 2697e87..c32476c 100644
40116--- a/drivers/cpuidle/driver.c
40117+++ b/drivers/cpuidle/driver.c
40118@@ -194,7 +194,7 @@ static int poll_idle(struct cpuidle_device *dev,
40119
40120 static void poll_idle_init(struct cpuidle_driver *drv)
40121 {
40122- struct cpuidle_state *state = &drv->states[0];
40123+ cpuidle_state_no_const *state = &drv->states[0];
40124
40125 snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
40126 snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
40127diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
40128index fb9f511..213e6cc 100644
40129--- a/drivers/cpuidle/governor.c
40130+++ b/drivers/cpuidle/governor.c
40131@@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
40132 mutex_lock(&cpuidle_lock);
40133 if (__cpuidle_find_governor(gov->name) == NULL) {
40134 ret = 0;
40135- list_add_tail(&gov->governor_list, &cpuidle_governors);
40136+ pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
40137 if (!cpuidle_curr_governor ||
40138 cpuidle_curr_governor->rating < gov->rating)
40139 cpuidle_switch_governor(gov);
40140diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
40141index 832a2c3..1794080 100644
40142--- a/drivers/cpuidle/sysfs.c
40143+++ b/drivers/cpuidle/sysfs.c
40144@@ -135,7 +135,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
40145 NULL
40146 };
40147
40148-static struct attribute_group cpuidle_attr_group = {
40149+static attribute_group_no_const cpuidle_attr_group = {
40150 .attrs = cpuidle_default_attrs,
40151 .name = "cpuidle",
40152 };
40153diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
40154index 8d2a772..33826c9 100644
40155--- a/drivers/crypto/hifn_795x.c
40156+++ b/drivers/crypto/hifn_795x.c
40157@@ -51,7 +51,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
40158 MODULE_PARM_DESC(hifn_pll_ref,
40159 "PLL reference clock (pci[freq] or ext[freq], default ext)");
40160
40161-static atomic_t hifn_dev_number;
40162+static atomic_unchecked_t hifn_dev_number;
40163
40164 #define ACRYPTO_OP_DECRYPT 0
40165 #define ACRYPTO_OP_ENCRYPT 1
40166@@ -2577,7 +2577,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
40167 goto err_out_disable_pci_device;
40168
40169 snprintf(name, sizeof(name), "hifn%d",
40170- atomic_inc_return(&hifn_dev_number)-1);
40171+ atomic_inc_return_unchecked(&hifn_dev_number)-1);
40172
40173 err = pci_request_regions(pdev, name);
40174 if (err)
40175diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
40176index 30b538d8..1610d75 100644
40177--- a/drivers/devfreq/devfreq.c
40178+++ b/drivers/devfreq/devfreq.c
40179@@ -673,7 +673,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
40180 goto err_out;
40181 }
40182
40183- list_add(&governor->node, &devfreq_governor_list);
40184+ pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
40185
40186 list_for_each_entry(devfreq, &devfreq_list, node) {
40187 int ret = 0;
40188@@ -761,7 +761,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
40189 }
40190 }
40191
40192- list_del(&governor->node);
40193+ pax_list_del((struct list_head *)&governor->node);
40194 err_out:
40195 mutex_unlock(&devfreq_list_lock);
40196
40197diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
40198index 8ee383d..736b5de 100644
40199--- a/drivers/dma/sh/shdma-base.c
40200+++ b/drivers/dma/sh/shdma-base.c
40201@@ -228,8 +228,8 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan)
40202 schan->slave_id = -EINVAL;
40203 }
40204
40205- schan->desc = kcalloc(NR_DESCS_PER_CHANNEL,
40206- sdev->desc_size, GFP_KERNEL);
40207+ schan->desc = kcalloc(sdev->desc_size,
40208+ NR_DESCS_PER_CHANNEL, GFP_KERNEL);
40209 if (!schan->desc) {
40210 ret = -ENOMEM;
40211 goto edescalloc;
40212diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
40213index 9f1d4c7..fceff78 100644
40214--- a/drivers/dma/sh/shdmac.c
40215+++ b/drivers/dma/sh/shdmac.c
40216@@ -513,7 +513,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
40217 return ret;
40218 }
40219
40220-static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
40221+static struct notifier_block sh_dmae_nmi_notifier = {
40222 .notifier_call = sh_dmae_nmi_handler,
40223
40224 /* Run before NMI debug handler and KGDB */
40225diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
40226index 592af5f..bb1d583 100644
40227--- a/drivers/edac/edac_device.c
40228+++ b/drivers/edac/edac_device.c
40229@@ -477,9 +477,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
40230 */
40231 int edac_device_alloc_index(void)
40232 {
40233- static atomic_t device_indexes = ATOMIC_INIT(0);
40234+ static atomic_unchecked_t device_indexes = ATOMIC_INIT(0);
40235
40236- return atomic_inc_return(&device_indexes) - 1;
40237+ return atomic_inc_return_unchecked(&device_indexes) - 1;
40238 }
40239 EXPORT_SYMBOL_GPL(edac_device_alloc_index);
40240
40241diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
40242index c84eecb..4d7381d 100644
40243--- a/drivers/edac/edac_mc_sysfs.c
40244+++ b/drivers/edac/edac_mc_sysfs.c
40245@@ -154,7 +154,7 @@ static const char * const edac_caps[] = {
40246 struct dev_ch_attribute {
40247 struct device_attribute attr;
40248 int channel;
40249-};
40250+} __do_const;
40251
40252 #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
40253 static struct dev_ch_attribute dev_attr_legacy_##_name = \
40254@@ -1009,15 +1009,17 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
40255 }
40256
40257 if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
40258+ pax_open_kernel();
40259 if (mci->get_sdram_scrub_rate) {
40260- dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
40261- dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
40262+ *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
40263+ *(void **)&dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
40264 }
40265
40266 if (mci->set_sdram_scrub_rate) {
40267- dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
40268- dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
40269+ *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
40270+ *(void **)&dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
40271 }
40272+ pax_close_kernel();
40273
40274 err = device_create_file(&mci->dev, &dev_attr_sdram_scrub_rate);
40275 if (err) {
40276diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
40277index 2cf44b4d..6dd2dc7 100644
40278--- a/drivers/edac/edac_pci.c
40279+++ b/drivers/edac/edac_pci.c
40280@@ -29,7 +29,7 @@
40281
40282 static DEFINE_MUTEX(edac_pci_ctls_mutex);
40283 static LIST_HEAD(edac_pci_list);
40284-static atomic_t pci_indexes = ATOMIC_INIT(0);
40285+static atomic_unchecked_t pci_indexes = ATOMIC_INIT(0);
40286
40287 /*
40288 * edac_pci_alloc_ctl_info
40289@@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);
40290 */
40291 int edac_pci_alloc_index(void)
40292 {
40293- return atomic_inc_return(&pci_indexes) - 1;
40294+ return atomic_inc_return_unchecked(&pci_indexes) - 1;
40295 }
40296 EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
40297
40298diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
40299index 24d877f..4e30133 100644
40300--- a/drivers/edac/edac_pci_sysfs.c
40301+++ b/drivers/edac/edac_pci_sysfs.c
40302@@ -23,8 +23,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */
40303 static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
40304 static int edac_pci_poll_msec = 1000; /* one second workq period */
40305
40306-static atomic_t pci_parity_count = ATOMIC_INIT(0);
40307-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
40308+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
40309+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
40310
40311 static struct kobject *edac_pci_top_main_kobj;
40312 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
40313@@ -232,7 +232,7 @@ struct edac_pci_dev_attribute {
40314 void *value;
40315 ssize_t(*show) (void *, char *);
40316 ssize_t(*store) (void *, const char *, size_t);
40317-};
40318+} __do_const;
40319
40320 /* Set of show/store abstract level functions for PCI Parity object */
40321 static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
40322@@ -576,7 +576,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40323 edac_printk(KERN_CRIT, EDAC_PCI,
40324 "Signaled System Error on %s\n",
40325 pci_name(dev));
40326- atomic_inc(&pci_nonparity_count);
40327+ atomic_inc_unchecked(&pci_nonparity_count);
40328 }
40329
40330 if (status & (PCI_STATUS_PARITY)) {
40331@@ -584,7 +584,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40332 "Master Data Parity Error on %s\n",
40333 pci_name(dev));
40334
40335- atomic_inc(&pci_parity_count);
40336+ atomic_inc_unchecked(&pci_parity_count);
40337 }
40338
40339 if (status & (PCI_STATUS_DETECTED_PARITY)) {
40340@@ -592,7 +592,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40341 "Detected Parity Error on %s\n",
40342 pci_name(dev));
40343
40344- atomic_inc(&pci_parity_count);
40345+ atomic_inc_unchecked(&pci_parity_count);
40346 }
40347 }
40348
40349@@ -615,7 +615,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40350 edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
40351 "Signaled System Error on %s\n",
40352 pci_name(dev));
40353- atomic_inc(&pci_nonparity_count);
40354+ atomic_inc_unchecked(&pci_nonparity_count);
40355 }
40356
40357 if (status & (PCI_STATUS_PARITY)) {
40358@@ -623,7 +623,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40359 "Master Data Parity Error on "
40360 "%s\n", pci_name(dev));
40361
40362- atomic_inc(&pci_parity_count);
40363+ atomic_inc_unchecked(&pci_parity_count);
40364 }
40365
40366 if (status & (PCI_STATUS_DETECTED_PARITY)) {
40367@@ -631,7 +631,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40368 "Detected Parity Error on %s\n",
40369 pci_name(dev));
40370
40371- atomic_inc(&pci_parity_count);
40372+ atomic_inc_unchecked(&pci_parity_count);
40373 }
40374 }
40375 }
40376@@ -669,7 +669,7 @@ void edac_pci_do_parity_check(void)
40377 if (!check_pci_errors)
40378 return;
40379
40380- before_count = atomic_read(&pci_parity_count);
40381+ before_count = atomic_read_unchecked(&pci_parity_count);
40382
40383 /* scan all PCI devices looking for a Parity Error on devices and
40384 * bridges.
40385@@ -681,7 +681,7 @@ void edac_pci_do_parity_check(void)
40386 /* Only if operator has selected panic on PCI Error */
40387 if (edac_pci_get_panic_on_pe()) {
40388 /* If the count is different 'after' from 'before' */
40389- if (before_count != atomic_read(&pci_parity_count))
40390+ if (before_count != atomic_read_unchecked(&pci_parity_count))
40391 panic("EDAC: PCI Parity Error");
40392 }
40393 }
40394diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
40395index c2359a1..8bd119d 100644
40396--- a/drivers/edac/mce_amd.h
40397+++ b/drivers/edac/mce_amd.h
40398@@ -74,7 +74,7 @@ struct amd_decoder_ops {
40399 bool (*mc0_mce)(u16, u8);
40400 bool (*mc1_mce)(u16, u8);
40401 bool (*mc2_mce)(u16, u8);
40402-};
40403+} __no_const;
40404
40405 void amd_report_gart_errors(bool);
40406 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
40407diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
40408index 57ea7f4..af06b76 100644
40409--- a/drivers/firewire/core-card.c
40410+++ b/drivers/firewire/core-card.c
40411@@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
40412 const struct fw_card_driver *driver,
40413 struct device *device)
40414 {
40415- static atomic_t index = ATOMIC_INIT(-1);
40416+ static atomic_unchecked_t index = ATOMIC_INIT(-1);
40417
40418- card->index = atomic_inc_return(&index);
40419+ card->index = atomic_inc_return_unchecked(&index);
40420 card->driver = driver;
40421 card->device = device;
40422 card->current_tlabel = 0;
40423@@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
40424
40425 void fw_core_remove_card(struct fw_card *card)
40426 {
40427- struct fw_card_driver dummy_driver = dummy_driver_template;
40428+ fw_card_driver_no_const dummy_driver = dummy_driver_template;
40429
40430 card->driver->update_phy_reg(card, 4,
40431 PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
40432diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
40433index f9e3aee..269dbdb 100644
40434--- a/drivers/firewire/core-device.c
40435+++ b/drivers/firewire/core-device.c
40436@@ -256,7 +256,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
40437 struct config_rom_attribute {
40438 struct device_attribute attr;
40439 u32 key;
40440-};
40441+} __do_const;
40442
40443 static ssize_t show_immediate(struct device *dev,
40444 struct device_attribute *dattr, char *buf)
40445diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
40446index d6a09b9..18e90dd 100644
40447--- a/drivers/firewire/core-transaction.c
40448+++ b/drivers/firewire/core-transaction.c
40449@@ -38,6 +38,7 @@
40450 #include <linux/timer.h>
40451 #include <linux/types.h>
40452 #include <linux/workqueue.h>
40453+#include <linux/sched.h>
40454
40455 #include <asm/byteorder.h>
40456
40457diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
40458index e1480ff6..1a429bd 100644
40459--- a/drivers/firewire/core.h
40460+++ b/drivers/firewire/core.h
40461@@ -111,6 +111,7 @@ struct fw_card_driver {
40462
40463 int (*stop_iso)(struct fw_iso_context *ctx);
40464 };
40465+typedef struct fw_card_driver __no_const fw_card_driver_no_const;
40466
40467 void fw_card_initialize(struct fw_card *card,
40468 const struct fw_card_driver *driver, struct device *device);
40469diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
40470index f51d376..b118e40 100644
40471--- a/drivers/firewire/ohci.c
40472+++ b/drivers/firewire/ohci.c
40473@@ -2049,10 +2049,12 @@ static void bus_reset_work(struct work_struct *work)
40474 be32_to_cpu(ohci->next_header));
40475 }
40476
40477+#ifndef CONFIG_GRKERNSEC
40478 if (param_remote_dma) {
40479 reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
40480 reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
40481 }
40482+#endif
40483
40484 spin_unlock_irq(&ohci->lock);
40485
40486@@ -2584,8 +2586,10 @@ static int ohci_enable_phys_dma(struct fw_card *card,
40487 unsigned long flags;
40488 int n, ret = 0;
40489
40490+#ifndef CONFIG_GRKERNSEC
40491 if (param_remote_dma)
40492 return 0;
40493+#endif
40494
40495 /*
40496 * FIXME: Make sure this bitmask is cleared when we clear the busReset
40497diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
40498index 94a58a0..f5eba42 100644
40499--- a/drivers/firmware/dmi-id.c
40500+++ b/drivers/firmware/dmi-id.c
40501@@ -16,7 +16,7 @@
40502 struct dmi_device_attribute{
40503 struct device_attribute dev_attr;
40504 int field;
40505-};
40506+} __do_const;
40507 #define to_dmi_dev_attr(_dev_attr) \
40508 container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
40509
40510diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
40511index 2eebd28b..4261350 100644
40512--- a/drivers/firmware/dmi_scan.c
40513+++ b/drivers/firmware/dmi_scan.c
40514@@ -893,7 +893,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
40515 if (buf == NULL)
40516 return -1;
40517
40518- dmi_table(buf, dmi_len, dmi_num, decode, private_data);
40519+ dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data);
40520
40521 dmi_unmap(buf);
40522 return 0;
40523diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
40524index 4fd9961..52d60ce 100644
40525--- a/drivers/firmware/efi/cper.c
40526+++ b/drivers/firmware/efi/cper.c
40527@@ -44,12 +44,12 @@ static char rcd_decode_str[CPER_REC_LEN];
40528 */
40529 u64 cper_next_record_id(void)
40530 {
40531- static atomic64_t seq;
40532+ static atomic64_unchecked_t seq;
40533
40534- if (!atomic64_read(&seq))
40535- atomic64_set(&seq, ((u64)get_seconds()) << 32);
40536+ if (!atomic64_read_unchecked(&seq))
40537+ atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
40538
40539- return atomic64_inc_return(&seq);
40540+ return atomic64_inc_return_unchecked(&seq);
40541 }
40542 EXPORT_SYMBOL_GPL(cper_next_record_id);
40543
40544diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
40545index 3061bb8..92b5fcc 100644
40546--- a/drivers/firmware/efi/efi.c
40547+++ b/drivers/firmware/efi/efi.c
40548@@ -160,14 +160,16 @@ static struct attribute_group efi_subsys_attr_group = {
40549 };
40550
40551 static struct efivars generic_efivars;
40552-static struct efivar_operations generic_ops;
40553+static efivar_operations_no_const generic_ops __read_only;
40554
40555 static int generic_ops_register(void)
40556 {
40557- generic_ops.get_variable = efi.get_variable;
40558- generic_ops.set_variable = efi.set_variable;
40559- generic_ops.get_next_variable = efi.get_next_variable;
40560- generic_ops.query_variable_store = efi_query_variable_store;
40561+ pax_open_kernel();
40562+ *(void **)&generic_ops.get_variable = efi.get_variable;
40563+ *(void **)&generic_ops.set_variable = efi.set_variable;
40564+ *(void **)&generic_ops.get_next_variable = efi.get_next_variable;
40565+ *(void **)&generic_ops.query_variable_store = efi_query_variable_store;
40566+ pax_close_kernel();
40567
40568 return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
40569 }
40570diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
40571index 7b2e049..a253334 100644
40572--- a/drivers/firmware/efi/efivars.c
40573+++ b/drivers/firmware/efi/efivars.c
40574@@ -589,7 +589,7 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
40575 static int
40576 create_efivars_bin_attributes(void)
40577 {
40578- struct bin_attribute *attr;
40579+ bin_attribute_no_const *attr;
40580 int error;
40581
40582 /* new_var */
40583diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
40584index 87b8e3b..c4afb35 100644
40585--- a/drivers/firmware/efi/runtime-map.c
40586+++ b/drivers/firmware/efi/runtime-map.c
40587@@ -97,7 +97,7 @@ static void map_release(struct kobject *kobj)
40588 kfree(entry);
40589 }
40590
40591-static struct kobj_type __refdata map_ktype = {
40592+static const struct kobj_type __refconst map_ktype = {
40593 .sysfs_ops = &map_attr_ops,
40594 .default_attrs = def_attrs,
40595 .release = map_release,
40596diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
40597index f1ab05e..ab51228 100644
40598--- a/drivers/firmware/google/gsmi.c
40599+++ b/drivers/firmware/google/gsmi.c
40600@@ -709,7 +709,7 @@ static u32 __init hash_oem_table_id(char s[8])
40601 return local_hash_64(input, 32);
40602 }
40603
40604-static struct dmi_system_id gsmi_dmi_table[] __initdata = {
40605+static const struct dmi_system_id gsmi_dmi_table[] __initconst = {
40606 {
40607 .ident = "Google Board",
40608 .matches = {
40609diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
40610index 2f569aa..26e4f39 100644
40611--- a/drivers/firmware/google/memconsole.c
40612+++ b/drivers/firmware/google/memconsole.c
40613@@ -136,7 +136,7 @@ static bool __init found_memconsole(void)
40614 return false;
40615 }
40616
40617-static struct dmi_system_id memconsole_dmi_table[] __initdata = {
40618+static const struct dmi_system_id memconsole_dmi_table[] __initconst = {
40619 {
40620 .ident = "Google Board",
40621 .matches = {
40622@@ -155,7 +155,10 @@ static int __init memconsole_init(void)
40623 if (!found_memconsole())
40624 return -ENODEV;
40625
40626- memconsole_bin_attr.size = memconsole_length;
40627+ pax_open_kernel();
40628+ *(size_t *)&memconsole_bin_attr.size = memconsole_length;
40629+ pax_close_kernel();
40630+
40631 return sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
40632 }
40633
40634diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
40635index cc016c61..d35279e 100644
40636--- a/drivers/firmware/memmap.c
40637+++ b/drivers/firmware/memmap.c
40638@@ -124,7 +124,7 @@ static void __meminit release_firmware_map_entry(struct kobject *kobj)
40639 kfree(entry);
40640 }
40641
40642-static struct kobj_type __refdata memmap_ktype = {
40643+static const struct kobj_type __refconst memmap_ktype = {
40644 .release = release_firmware_map_entry,
40645 .sysfs_ops = &memmap_attr_ops,
40646 .default_attrs = def_attrs,
40647diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
40648index 3cfcfc6..09d6f117 100644
40649--- a/drivers/gpio/gpio-em.c
40650+++ b/drivers/gpio/gpio-em.c
40651@@ -278,7 +278,7 @@ static int em_gio_probe(struct platform_device *pdev)
40652 struct em_gio_priv *p;
40653 struct resource *io[2], *irq[2];
40654 struct gpio_chip *gpio_chip;
40655- struct irq_chip *irq_chip;
40656+ irq_chip_no_const *irq_chip;
40657 const char *name = dev_name(&pdev->dev);
40658 int ret;
40659
40660diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
40661index 7818cd1..1be40e5 100644
40662--- a/drivers/gpio/gpio-ich.c
40663+++ b/drivers/gpio/gpio-ich.c
40664@@ -94,7 +94,7 @@ struct ichx_desc {
40665 * this option allows driver caching written output values
40666 */
40667 bool use_outlvl_cache;
40668-};
40669+} __do_const;
40670
40671 static struct {
40672 spinlock_t lock;
40673diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
40674index f476ae2..05e1bdd 100644
40675--- a/drivers/gpio/gpio-omap.c
40676+++ b/drivers/gpio/gpio-omap.c
40677@@ -1188,7 +1188,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
40678 const struct omap_gpio_platform_data *pdata;
40679 struct resource *res;
40680 struct gpio_bank *bank;
40681- struct irq_chip *irqc;
40682+ irq_chip_no_const *irqc;
40683 int ret;
40684
40685 match = of_match_device(of_match_ptr(omap_gpio_match), dev);
40686diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
40687index c49522e..9a7ee54 100644
40688--- a/drivers/gpio/gpio-rcar.c
40689+++ b/drivers/gpio/gpio-rcar.c
40690@@ -348,7 +348,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
40691 struct gpio_rcar_priv *p;
40692 struct resource *io, *irq;
40693 struct gpio_chip *gpio_chip;
40694- struct irq_chip *irq_chip;
40695+ irq_chip_no_const *irq_chip;
40696 struct device *dev = &pdev->dev;
40697 const char *name = dev_name(dev);
40698 int ret;
40699diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
40700index c1caa45..f0f97d2 100644
40701--- a/drivers/gpio/gpio-vr41xx.c
40702+++ b/drivers/gpio/gpio-vr41xx.c
40703@@ -224,7 +224,7 @@ static int giu_get_irq(unsigned int irq)
40704 printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
40705 maskl, pendl, maskh, pendh);
40706
40707- atomic_inc(&irq_err_count);
40708+ atomic_inc_unchecked(&irq_err_count);
40709
40710 return -EINVAL;
40711 }
40712diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
40713index 1ca9295..9f3d481 100644
40714--- a/drivers/gpio/gpiolib.c
40715+++ b/drivers/gpio/gpiolib.c
40716@@ -554,8 +554,10 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
40717 }
40718
40719 if (gpiochip->irqchip) {
40720- gpiochip->irqchip->irq_request_resources = NULL;
40721- gpiochip->irqchip->irq_release_resources = NULL;
40722+ pax_open_kernel();
40723+ *(void **)&gpiochip->irqchip->irq_request_resources = NULL;
40724+ *(void **)&gpiochip->irqchip->irq_release_resources = NULL;
40725+ pax_close_kernel();
40726 gpiochip->irqchip = NULL;
40727 }
40728 }
40729@@ -621,8 +623,11 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
40730 gpiochip->irqchip = NULL;
40731 return -EINVAL;
40732 }
40733- irqchip->irq_request_resources = gpiochip_irq_reqres;
40734- irqchip->irq_release_resources = gpiochip_irq_relres;
40735+
40736+ pax_open_kernel();
40737+ *(void **)&irqchip->irq_request_resources = gpiochip_irq_reqres;
40738+ *(void **)&irqchip->irq_release_resources = gpiochip_irq_relres;
40739+ pax_close_kernel();
40740
40741 /*
40742 * Prepare the mapping since the irqchip shall be orthogonal to
40743diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40744index 488f51d..301d462 100644
40745--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40746+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40747@@ -118,7 +118,7 @@ struct device_queue_manager_ops {
40748 enum cache_policy alternate_policy,
40749 void __user *alternate_aperture_base,
40750 uint64_t alternate_aperture_size);
40751-};
40752+} __no_const;
40753
40754 /**
40755 * struct device_queue_manager
40756diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40757index 5940531..a75b0e5 100644
40758--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40759+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40760@@ -62,7 +62,7 @@ struct kernel_queue_ops {
40761
40762 void (*submit_packet)(struct kernel_queue *kq);
40763 void (*rollback_packet)(struct kernel_queue *kq);
40764-};
40765+} __no_const;
40766
40767 struct kernel_queue {
40768 struct kernel_queue_ops ops;
40769diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
40770index 9b23525..65f4110 100644
40771--- a/drivers/gpu/drm/drm_context.c
40772+++ b/drivers/gpu/drm/drm_context.c
40773@@ -53,6 +53,9 @@ struct drm_ctx_list {
40774 */
40775 void drm_legacy_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
40776 {
40777+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40778+ return;
40779+
40780 mutex_lock(&dev->struct_mutex);
40781 idr_remove(&dev->ctx_idr, ctx_handle);
40782 mutex_unlock(&dev->struct_mutex);
40783@@ -87,6 +90,9 @@ static int drm_legacy_ctxbitmap_next(struct drm_device * dev)
40784 */
40785 int drm_legacy_ctxbitmap_init(struct drm_device * dev)
40786 {
40787+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40788+ return -EINVAL;
40789+
40790 idr_init(&dev->ctx_idr);
40791 return 0;
40792 }
40793@@ -101,6 +107,9 @@ int drm_legacy_ctxbitmap_init(struct drm_device * dev)
40794 */
40795 void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
40796 {
40797+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40798+ return;
40799+
40800 mutex_lock(&dev->struct_mutex);
40801 idr_destroy(&dev->ctx_idr);
40802 mutex_unlock(&dev->struct_mutex);
40803@@ -119,11 +128,14 @@ void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file)
40804 {
40805 struct drm_ctx_list *pos, *tmp;
40806
40807+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40808+ return;
40809+
40810 mutex_lock(&dev->ctxlist_mutex);
40811
40812 list_for_each_entry_safe(pos, tmp, &dev->ctxlist, head) {
40813 if (pos->tag == file &&
40814- pos->handle != DRM_KERNEL_CONTEXT) {
40815+ _DRM_LOCKING_CONTEXT(pos->handle) != DRM_KERNEL_CONTEXT) {
40816 if (dev->driver->context_dtor)
40817 dev->driver->context_dtor(dev, pos->handle);
40818
40819@@ -161,6 +173,9 @@ int drm_legacy_getsareactx(struct drm_device *dev, void *data,
40820 struct drm_local_map *map;
40821 struct drm_map_list *_entry;
40822
40823+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40824+ return -EINVAL;
40825+
40826 mutex_lock(&dev->struct_mutex);
40827
40828 map = idr_find(&dev->ctx_idr, request->ctx_id);
40829@@ -205,6 +220,9 @@ int drm_legacy_setsareactx(struct drm_device *dev, void *data,
40830 struct drm_local_map *map = NULL;
40831 struct drm_map_list *r_list = NULL;
40832
40833+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40834+ return -EINVAL;
40835+
40836 mutex_lock(&dev->struct_mutex);
40837 list_for_each_entry(r_list, &dev->maplist, head) {
40838 if (r_list->map
40839@@ -277,7 +295,13 @@ static int drm_context_switch_complete(struct drm_device *dev,
40840 {
40841 dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
40842
40843- if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
40844+ if (file_priv->master->lock.hw_lock == NULL) {
40845+ DRM_ERROR(
40846+ "Device has been unregistered. Hard exit. Process %d\n",
40847+ task_pid_nr(current));
40848+ send_sig(SIGTERM, current, 0);
40849+ return -EPERM;
40850+ } else if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
40851 DRM_ERROR("Lock isn't held after context switch\n");
40852 }
40853
40854@@ -305,6 +329,9 @@ int drm_legacy_resctx(struct drm_device *dev, void *data,
40855 struct drm_ctx ctx;
40856 int i;
40857
40858+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40859+ return -EINVAL;
40860+
40861 if (res->count >= DRM_RESERVED_CONTEXTS) {
40862 memset(&ctx, 0, sizeof(ctx));
40863 for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
40864@@ -335,8 +362,11 @@ int drm_legacy_addctx(struct drm_device *dev, void *data,
40865 struct drm_ctx_list *ctx_entry;
40866 struct drm_ctx *ctx = data;
40867
40868+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40869+ return -EINVAL;
40870+
40871 ctx->handle = drm_legacy_ctxbitmap_next(dev);
40872- if (ctx->handle == DRM_KERNEL_CONTEXT) {
40873+ if (_DRM_LOCKING_CONTEXT(ctx->handle) == DRM_KERNEL_CONTEXT) {
40874 /* Skip kernel's context and get a new one. */
40875 ctx->handle = drm_legacy_ctxbitmap_next(dev);
40876 }
40877@@ -378,6 +408,9 @@ int drm_legacy_getctx(struct drm_device *dev, void *data,
40878 {
40879 struct drm_ctx *ctx = data;
40880
40881+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40882+ return -EINVAL;
40883+
40884 /* This is 0, because we don't handle any context flags */
40885 ctx->flags = 0;
40886
40887@@ -400,6 +433,9 @@ int drm_legacy_switchctx(struct drm_device *dev, void *data,
40888 {
40889 struct drm_ctx *ctx = data;
40890
40891+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40892+ return -EINVAL;
40893+
40894 DRM_DEBUG("%d\n", ctx->handle);
40895 return drm_context_switch(dev, dev->last_context, ctx->handle);
40896 }
40897@@ -420,6 +456,9 @@ int drm_legacy_newctx(struct drm_device *dev, void *data,
40898 {
40899 struct drm_ctx *ctx = data;
40900
40901+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40902+ return -EINVAL;
40903+
40904 DRM_DEBUG("%d\n", ctx->handle);
40905 drm_context_switch_complete(dev, file_priv, ctx->handle);
40906
40907@@ -442,8 +481,11 @@ int drm_legacy_rmctx(struct drm_device *dev, void *data,
40908 {
40909 struct drm_ctx *ctx = data;
40910
40911+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40912+ return -EINVAL;
40913+
40914 DRM_DEBUG("%d\n", ctx->handle);
40915- if (ctx->handle != DRM_KERNEL_CONTEXT) {
40916+ if (_DRM_LOCKING_CONTEXT(ctx->handle) != DRM_KERNEL_CONTEXT) {
40917 if (dev->driver->context_dtor)
40918 dev->driver->context_dtor(dev, ctx->handle);
40919 drm_legacy_ctxbitmap_free(dev, ctx->handle);
40920diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
40921index b6f076b..2918de2 100644
40922--- a/drivers/gpu/drm/drm_crtc.c
40923+++ b/drivers/gpu/drm/drm_crtc.c
40924@@ -4118,7 +4118,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
40925 goto done;
40926 }
40927
40928- if (copy_to_user(&enum_ptr[copied].name,
40929+ if (copy_to_user(enum_ptr[copied].name,
40930 &prop_enum->name, DRM_PROP_NAME_LEN)) {
40931 ret = -EFAULT;
40932 goto done;
40933diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
40934index d512134..a80a8e4 100644
40935--- a/drivers/gpu/drm/drm_drv.c
40936+++ b/drivers/gpu/drm/drm_drv.c
40937@@ -448,7 +448,7 @@ void drm_unplug_dev(struct drm_device *dev)
40938
40939 drm_device_set_unplugged(dev);
40940
40941- if (dev->open_count == 0) {
40942+ if (local_read(&dev->open_count) == 0) {
40943 drm_put_dev(dev);
40944 }
40945 mutex_unlock(&drm_global_mutex);
40946@@ -596,10 +596,13 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
40947 if (drm_ht_create(&dev->map_hash, 12))
40948 goto err_minors;
40949
40950- ret = drm_legacy_ctxbitmap_init(dev);
40951- if (ret) {
40952- DRM_ERROR("Cannot allocate memory for context bitmap.\n");
40953- goto err_ht;
40954+ if (drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT)) {
40955+ ret = drm_legacy_ctxbitmap_init(dev);
40956+ if (ret) {
40957+ DRM_ERROR(
40958+ "Cannot allocate memory for context bitmap.\n");
40959+ goto err_ht;
40960+ }
40961 }
40962
40963 if (drm_core_check_feature(dev, DRIVER_GEM)) {
40964diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
40965index 076dd60..e4a4ba7 100644
40966--- a/drivers/gpu/drm/drm_fops.c
40967+++ b/drivers/gpu/drm/drm_fops.c
40968@@ -89,7 +89,7 @@ int drm_open(struct inode *inode, struct file *filp)
40969 return PTR_ERR(minor);
40970
40971 dev = minor->dev;
40972- if (!dev->open_count++)
40973+ if (local_inc_return(&dev->open_count) == 1)
40974 need_setup = 1;
40975
40976 /* share address_space across all char-devs of a single device */
40977@@ -106,7 +106,7 @@ int drm_open(struct inode *inode, struct file *filp)
40978 return 0;
40979
40980 err_undo:
40981- dev->open_count--;
40982+ local_dec(&dev->open_count);
40983 drm_minor_release(minor);
40984 return retcode;
40985 }
40986@@ -376,7 +376,7 @@ int drm_release(struct inode *inode, struct file *filp)
40987
40988 mutex_lock(&drm_global_mutex);
40989
40990- DRM_DEBUG("open_count = %d\n", dev->open_count);
40991+ DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
40992
40993 mutex_lock(&dev->struct_mutex);
40994 list_del(&file_priv->lhead);
40995@@ -389,10 +389,10 @@ int drm_release(struct inode *inode, struct file *filp)
40996 * Begin inline drm_release
40997 */
40998
40999- DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
41000+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
41001 task_pid_nr(current),
41002 (long)old_encode_dev(file_priv->minor->kdev->devt),
41003- dev->open_count);
41004+ local_read(&dev->open_count));
41005
41006 /* Release any auth tokens that might point to this file_priv,
41007 (do that under the drm_global_mutex) */
41008@@ -465,7 +465,7 @@ int drm_release(struct inode *inode, struct file *filp)
41009 * End inline drm_release
41010 */
41011
41012- if (!--dev->open_count) {
41013+ if (local_dec_and_test(&dev->open_count)) {
41014 retcode = drm_lastclose(dev);
41015 if (drm_device_is_unplugged(dev))
41016 drm_put_dev(dev);
41017diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
41018index 3d2e91c..d31c4c9 100644
41019--- a/drivers/gpu/drm/drm_global.c
41020+++ b/drivers/gpu/drm/drm_global.c
41021@@ -36,7 +36,7 @@
41022 struct drm_global_item {
41023 struct mutex mutex;
41024 void *object;
41025- int refcount;
41026+ atomic_t refcount;
41027 };
41028
41029 static struct drm_global_item glob[DRM_GLOBAL_NUM];
41030@@ -49,7 +49,7 @@ void drm_global_init(void)
41031 struct drm_global_item *item = &glob[i];
41032 mutex_init(&item->mutex);
41033 item->object = NULL;
41034- item->refcount = 0;
41035+ atomic_set(&item->refcount, 0);
41036 }
41037 }
41038
41039@@ -59,7 +59,7 @@ void drm_global_release(void)
41040 for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
41041 struct drm_global_item *item = &glob[i];
41042 BUG_ON(item->object != NULL);
41043- BUG_ON(item->refcount != 0);
41044+ BUG_ON(atomic_read(&item->refcount) != 0);
41045 }
41046 }
41047
41048@@ -69,7 +69,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
41049 struct drm_global_item *item = &glob[ref->global_type];
41050
41051 mutex_lock(&item->mutex);
41052- if (item->refcount == 0) {
41053+ if (atomic_read(&item->refcount) == 0) {
41054 item->object = kzalloc(ref->size, GFP_KERNEL);
41055 if (unlikely(item->object == NULL)) {
41056 ret = -ENOMEM;
41057@@ -82,7 +82,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
41058 goto out_err;
41059
41060 }
41061- ++item->refcount;
41062+ atomic_inc(&item->refcount);
41063 ref->object = item->object;
41064 mutex_unlock(&item->mutex);
41065 return 0;
41066@@ -98,9 +98,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
41067 struct drm_global_item *item = &glob[ref->global_type];
41068
41069 mutex_lock(&item->mutex);
41070- BUG_ON(item->refcount == 0);
41071+ BUG_ON(atomic_read(&item->refcount) == 0);
41072 BUG_ON(ref->object != item->object);
41073- if (--item->refcount == 0) {
41074+ if (atomic_dec_and_test(&item->refcount)) {
41075 ref->release(ref);
41076 item->object = NULL;
41077 }
41078diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
41079index f1b32f9..394f791 100644
41080--- a/drivers/gpu/drm/drm_info.c
41081+++ b/drivers/gpu/drm/drm_info.c
41082@@ -76,10 +76,13 @@ int drm_vm_info(struct seq_file *m, void *data)
41083 struct drm_local_map *map;
41084 struct drm_map_list *r_list;
41085
41086- /* Hardcoded from _DRM_FRAME_BUFFER,
41087- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
41088- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
41089- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
41090+ static const char * const types[] = {
41091+ [_DRM_FRAME_BUFFER] = "FB",
41092+ [_DRM_REGISTERS] = "REG",
41093+ [_DRM_SHM] = "SHM",
41094+ [_DRM_AGP] = "AGP",
41095+ [_DRM_SCATTER_GATHER] = "SG",
41096+ [_DRM_CONSISTENT] = "PCI"};
41097 const char *type;
41098 int i;
41099
41100@@ -90,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data)
41101 map = r_list->map;
41102 if (!map)
41103 continue;
41104- if (map->type < 0 || map->type > 5)
41105+ if (map->type >= ARRAY_SIZE(types))
41106 type = "??";
41107 else
41108 type = types[map->type];
41109diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
41110index 2f4c4343..dd12cd2 100644
41111--- a/drivers/gpu/drm/drm_ioc32.c
41112+++ b/drivers/gpu/drm/drm_ioc32.c
41113@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
41114 request = compat_alloc_user_space(nbytes);
41115 if (!access_ok(VERIFY_WRITE, request, nbytes))
41116 return -EFAULT;
41117- list = (struct drm_buf_desc *) (request + 1);
41118+ list = (struct drm_buf_desc __user *) (request + 1);
41119
41120 if (__put_user(count, &request->count)
41121 || __put_user(list, &request->list))
41122@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
41123 request = compat_alloc_user_space(nbytes);
41124 if (!access_ok(VERIFY_WRITE, request, nbytes))
41125 return -EFAULT;
41126- list = (struct drm_buf_pub *) (request + 1);
41127+ list = (struct drm_buf_pub __user *) (request + 1);
41128
41129 if (__put_user(count, &request->count)
41130 || __put_user(list, &request->list))
41131@@ -1016,7 +1016,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
41132 return 0;
41133 }
41134
41135-drm_ioctl_compat_t *drm_compat_ioctls[] = {
41136+drm_ioctl_compat_t drm_compat_ioctls[] = {
41137 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
41138 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
41139 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
41140@@ -1062,7 +1062,6 @@ drm_ioctl_compat_t *drm_compat_ioctls[] = {
41141 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41142 {
41143 unsigned int nr = DRM_IOCTL_NR(cmd);
41144- drm_ioctl_compat_t *fn;
41145 int ret;
41146
41147 /* Assume that ioctls without an explicit compat routine will just
41148@@ -1072,10 +1071,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41149 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
41150 return drm_ioctl(filp, cmd, arg);
41151
41152- fn = drm_compat_ioctls[nr];
41153-
41154- if (fn != NULL)
41155- ret = (*fn) (filp, cmd, arg);
41156+ if (drm_compat_ioctls[nr] != NULL)
41157+ ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
41158 else
41159 ret = drm_ioctl(filp, cmd, arg);
41160
41161diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
41162index 3785d66..1c489ef 100644
41163--- a/drivers/gpu/drm/drm_ioctl.c
41164+++ b/drivers/gpu/drm/drm_ioctl.c
41165@@ -655,7 +655,7 @@ long drm_ioctl(struct file *filp,
41166 struct drm_file *file_priv = filp->private_data;
41167 struct drm_device *dev;
41168 const struct drm_ioctl_desc *ioctl = NULL;
41169- drm_ioctl_t *func;
41170+ drm_ioctl_no_const_t func;
41171 unsigned int nr = DRM_IOCTL_NR(cmd);
41172 int retcode = -EINVAL;
41173 char stack_kdata[128];
41174diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
41175index f861361..b61d4c7 100644
41176--- a/drivers/gpu/drm/drm_lock.c
41177+++ b/drivers/gpu/drm/drm_lock.c
41178@@ -61,9 +61,12 @@ int drm_legacy_lock(struct drm_device *dev, void *data,
41179 struct drm_master *master = file_priv->master;
41180 int ret = 0;
41181
41182+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
41183+ return -EINVAL;
41184+
41185 ++file_priv->lock_count;
41186
41187- if (lock->context == DRM_KERNEL_CONTEXT) {
41188+ if (_DRM_LOCKING_CONTEXT(lock->context) == DRM_KERNEL_CONTEXT) {
41189 DRM_ERROR("Process %d using kernel context %d\n",
41190 task_pid_nr(current), lock->context);
41191 return -EINVAL;
41192@@ -153,12 +156,23 @@ int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_
41193 struct drm_lock *lock = data;
41194 struct drm_master *master = file_priv->master;
41195
41196- if (lock->context == DRM_KERNEL_CONTEXT) {
41197+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
41198+ return -EINVAL;
41199+
41200+ if (_DRM_LOCKING_CONTEXT(lock->context) == DRM_KERNEL_CONTEXT) {
41201 DRM_ERROR("Process %d using kernel context %d\n",
41202 task_pid_nr(current), lock->context);
41203 return -EINVAL;
41204 }
41205
41206+ if (!master->lock.hw_lock) {
41207+ DRM_ERROR(
41208+ "Device has been unregistered. Hard exit. Process %d\n",
41209+ task_pid_nr(current));
41210+ send_sig(SIGTERM, current, 0);
41211+ return -EPERM;
41212+ }
41213+
41214 if (drm_legacy_lock_free(&master->lock, lock->context)) {
41215 /* FIXME: Should really bail out here. */
41216 }
41217diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41218index d4813e0..6c1ab4d 100644
41219--- a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41220+++ b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41221@@ -825,10 +825,16 @@ void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
41222 u32 pipeconf_reg = PIPEACONF;
41223 u32 dspcntr_reg = DSPACNTR;
41224
41225- u32 pipeconf = dev_priv->pipeconf[pipe];
41226- u32 dspcntr = dev_priv->dspcntr[pipe];
41227+ u32 pipeconf;
41228+ u32 dspcntr;
41229 u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
41230
41231+ if (pipe == -1)
41232+ return;
41233+
41234+ pipeconf = dev_priv->pipeconf[pipe];
41235+ dspcntr = dev_priv->dspcntr[pipe];
41236+
41237 if (pipe) {
41238 pipeconf_reg = PIPECCONF;
41239 dspcntr_reg = DSPCCNTR;
41240diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
41241index 93ec5dc..82acbaf 100644
41242--- a/drivers/gpu/drm/i810/i810_drv.h
41243+++ b/drivers/gpu/drm/i810/i810_drv.h
41244@@ -110,8 +110,8 @@ typedef struct drm_i810_private {
41245 int page_flipping;
41246
41247 wait_queue_head_t irq_queue;
41248- atomic_t irq_received;
41249- atomic_t irq_emitted;
41250+ atomic_unchecked_t irq_received;
41251+ atomic_unchecked_t irq_emitted;
41252
41253 int front_offset;
41254 } drm_i810_private_t;
41255diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
41256index 1a46787..7fb387c 100644
41257--- a/drivers/gpu/drm/i915/i915_dma.c
41258+++ b/drivers/gpu/drm/i915/i915_dma.c
41259@@ -149,6 +149,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
41260 case I915_PARAM_MMAP_VERSION:
41261 value = 1;
41262 break;
41263+ case I915_PARAM_HAS_LEGACY_CONTEXT:
41264+ value = drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT);
41265+ break;
41266 default:
41267 DRM_DEBUG("Unknown parameter %d\n", param->param);
41268 return -EINVAL;
41269@@ -362,7 +365,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
41270 * locking inversion with the driver load path. And the access here is
41271 * completely racy anyway. So don't bother with locking for now.
41272 */
41273- return dev->open_count == 0;
41274+ return local_read(&dev->open_count) == 0;
41275 }
41276
41277 static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
41278diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41279index 38a7425..5322b16 100644
41280--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41281+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41282@@ -872,12 +872,12 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
41283 static int
41284 validate_exec_list(struct drm_device *dev,
41285 struct drm_i915_gem_exec_object2 *exec,
41286- int count)
41287+ unsigned int count)
41288 {
41289 unsigned relocs_total = 0;
41290 unsigned relocs_max = UINT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
41291 unsigned invalid_flags;
41292- int i;
41293+ unsigned int i;
41294
41295 invalid_flags = __EXEC_OBJECT_UNKNOWN_FLAGS;
41296 if (USES_FULL_PPGTT(dev))
41297diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
41298index 176de63..b50b66a 100644
41299--- a/drivers/gpu/drm/i915/i915_ioc32.c
41300+++ b/drivers/gpu/drm/i915/i915_ioc32.c
41301@@ -62,7 +62,7 @@ static int compat_i915_batchbuffer(struct file *file, unsigned int cmd,
41302 || __put_user(batchbuffer32.DR4, &batchbuffer->DR4)
41303 || __put_user(batchbuffer32.num_cliprects,
41304 &batchbuffer->num_cliprects)
41305- || __put_user((int __user *)(unsigned long)batchbuffer32.cliprects,
41306+ || __put_user((struct drm_clip_rect __user *)(unsigned long)batchbuffer32.cliprects,
41307 &batchbuffer->cliprects))
41308 return -EFAULT;
41309
41310@@ -91,13 +91,13 @@ static int compat_i915_cmdbuffer(struct file *file, unsigned int cmd,
41311
41312 cmdbuffer = compat_alloc_user_space(sizeof(*cmdbuffer));
41313 if (!access_ok(VERIFY_WRITE, cmdbuffer, sizeof(*cmdbuffer))
41314- || __put_user((int __user *)(unsigned long)cmdbuffer32.buf,
41315+ || __put_user((char __user *)(unsigned long)cmdbuffer32.buf,
41316 &cmdbuffer->buf)
41317 || __put_user(cmdbuffer32.sz, &cmdbuffer->sz)
41318 || __put_user(cmdbuffer32.DR1, &cmdbuffer->DR1)
41319 || __put_user(cmdbuffer32.DR4, &cmdbuffer->DR4)
41320 || __put_user(cmdbuffer32.num_cliprects, &cmdbuffer->num_cliprects)
41321- || __put_user((int __user *)(unsigned long)cmdbuffer32.cliprects,
41322+ || __put_user((struct drm_clip_rect __user *)(unsigned long)cmdbuffer32.cliprects,
41323 &cmdbuffer->cliprects))
41324 return -EFAULT;
41325
41326@@ -181,7 +181,7 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
41327 (unsigned long)request);
41328 }
41329
41330-static drm_ioctl_compat_t *i915_compat_ioctls[] = {
41331+static drm_ioctl_compat_t i915_compat_ioctls[] = {
41332 [DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
41333 [DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
41334 [DRM_I915_GETPARAM] = compat_i915_getparam,
41335@@ -201,17 +201,13 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
41336 long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41337 {
41338 unsigned int nr = DRM_IOCTL_NR(cmd);
41339- drm_ioctl_compat_t *fn = NULL;
41340 int ret;
41341
41342 if (nr < DRM_COMMAND_BASE)
41343 return drm_compat_ioctl(filp, cmd, arg);
41344
41345- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls))
41346- fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
41347-
41348- if (fn != NULL)
41349- ret = (*fn) (filp, cmd, arg);
41350+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls) && i915_compat_ioctls[nr - DRM_COMMAND_BASE])
41351+ ret = (*i915_compat_ioctls[nr - DRM_COMMAND_BASE])(filp, cmd, arg);
41352 else
41353 ret = drm_ioctl(filp, cmd, arg);
41354
41355diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
41356index f75173c..f283e45 100644
41357--- a/drivers/gpu/drm/i915/intel_display.c
41358+++ b/drivers/gpu/drm/i915/intel_display.c
41359@@ -13056,13 +13056,13 @@ struct intel_quirk {
41360 int subsystem_vendor;
41361 int subsystem_device;
41362 void (*hook)(struct drm_device *dev);
41363-};
41364+} __do_const;
41365
41366 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
41367 struct intel_dmi_quirk {
41368 void (*hook)(struct drm_device *dev);
41369 const struct dmi_system_id (*dmi_id_list)[];
41370-};
41371+} __do_const;
41372
41373 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
41374 {
41375@@ -13070,18 +13070,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
41376 return 1;
41377 }
41378
41379-static const struct intel_dmi_quirk intel_dmi_quirks[] = {
41380+static const struct dmi_system_id intel_dmi_quirks_table[] = {
41381 {
41382- .dmi_id_list = &(const struct dmi_system_id[]) {
41383- {
41384- .callback = intel_dmi_reverse_brightness,
41385- .ident = "NCR Corporation",
41386- .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
41387- DMI_MATCH(DMI_PRODUCT_NAME, ""),
41388- },
41389- },
41390- { } /* terminating entry */
41391+ .callback = intel_dmi_reverse_brightness,
41392+ .ident = "NCR Corporation",
41393+ .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
41394+ DMI_MATCH(DMI_PRODUCT_NAME, ""),
41395 },
41396+ },
41397+ { } /* terminating entry */
41398+};
41399+
41400+static const struct intel_dmi_quirk intel_dmi_quirks[] = {
41401+ {
41402+ .dmi_id_list = &intel_dmi_quirks_table,
41403 .hook = quirk_invert_brightness,
41404 },
41405 };
41406diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
41407index a002f53..0d60514 100644
41408--- a/drivers/gpu/drm/imx/imx-drm-core.c
41409+++ b/drivers/gpu/drm/imx/imx-drm-core.c
41410@@ -355,7 +355,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
41411 if (imxdrm->pipes >= MAX_CRTC)
41412 return -EINVAL;
41413
41414- if (imxdrm->drm->open_count)
41415+ if (local_read(&imxdrm->drm->open_count))
41416 return -EBUSY;
41417
41418 imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL);
41419diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
41420index b4a20149..219ab78 100644
41421--- a/drivers/gpu/drm/mga/mga_drv.h
41422+++ b/drivers/gpu/drm/mga/mga_drv.h
41423@@ -122,9 +122,9 @@ typedef struct drm_mga_private {
41424 u32 clear_cmd;
41425 u32 maccess;
41426
41427- atomic_t vbl_received; /**< Number of vblanks received. */
41428+ atomic_unchecked_t vbl_received; /**< Number of vblanks received. */
41429 wait_queue_head_t fence_queue;
41430- atomic_t last_fence_retired;
41431+ atomic_unchecked_t last_fence_retired;
41432 u32 next_fence_to_post;
41433
41434 unsigned int fb_cpp;
41435diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
41436index 729bfd5..14bae78 100644
41437--- a/drivers/gpu/drm/mga/mga_ioc32.c
41438+++ b/drivers/gpu/drm/mga/mga_ioc32.c
41439@@ -190,7 +190,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
41440 return 0;
41441 }
41442
41443-drm_ioctl_compat_t *mga_compat_ioctls[] = {
41444+drm_ioctl_compat_t mga_compat_ioctls[] = {
41445 [DRM_MGA_INIT] = compat_mga_init,
41446 [DRM_MGA_GETPARAM] = compat_mga_getparam,
41447 [DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
41448@@ -208,17 +208,13 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
41449 long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41450 {
41451 unsigned int nr = DRM_IOCTL_NR(cmd);
41452- drm_ioctl_compat_t *fn = NULL;
41453 int ret;
41454
41455 if (nr < DRM_COMMAND_BASE)
41456 return drm_compat_ioctl(filp, cmd, arg);
41457
41458- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls))
41459- fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
41460-
41461- if (fn != NULL)
41462- ret = (*fn) (filp, cmd, arg);
41463+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls) && mga_compat_ioctls[nr - DRM_COMMAND_BASE])
41464+ ret = (*mga_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
41465 else
41466 ret = drm_ioctl(filp, cmd, arg);
41467
41468diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
41469index 1b071b8..de8601a 100644
41470--- a/drivers/gpu/drm/mga/mga_irq.c
41471+++ b/drivers/gpu/drm/mga/mga_irq.c
41472@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
41473 if (crtc != 0)
41474 return 0;
41475
41476- return atomic_read(&dev_priv->vbl_received);
41477+ return atomic_read_unchecked(&dev_priv->vbl_received);
41478 }
41479
41480
41481@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
41482 /* VBLANK interrupt */
41483 if (status & MGA_VLINEPEN) {
41484 MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
41485- atomic_inc(&dev_priv->vbl_received);
41486+ atomic_inc_unchecked(&dev_priv->vbl_received);
41487 drm_handle_vblank(dev, 0);
41488 handled = 1;
41489 }
41490@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
41491 if ((prim_start & ~0x03) != (prim_end & ~0x03))
41492 MGA_WRITE(MGA_PRIMEND, prim_end);
41493
41494- atomic_inc(&dev_priv->last_fence_retired);
41495+ atomic_inc_unchecked(&dev_priv->last_fence_retired);
41496 wake_up(&dev_priv->fence_queue);
41497 handled = 1;
41498 }
41499@@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
41500 * using fences.
41501 */
41502 DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
41503- (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
41504+ (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
41505 - *sequence) <= (1 << 23)));
41506
41507 *sequence = cur_fence;
41508diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
41509index 0190b69..60c3eaf 100644
41510--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
41511+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
41512@@ -963,7 +963,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
41513 struct bit_table {
41514 const char id;
41515 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
41516-};
41517+} __no_const;
41518
41519 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
41520
41521diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
41522index 8763deb..936b423 100644
41523--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
41524+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
41525@@ -940,7 +940,8 @@ static struct drm_driver
41526 driver_stub = {
41527 .driver_features =
41528 DRIVER_USE_AGP |
41529- DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
41530+ DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
41531+ DRIVER_KMS_LEGACY_CONTEXT,
41532
41533 .load = nouveau_drm_load,
41534 .unload = nouveau_drm_unload,
41535diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
41536index fc68f09..0511d71 100644
41537--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
41538+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
41539@@ -121,7 +121,6 @@ struct nouveau_drm {
41540 struct drm_global_reference mem_global_ref;
41541 struct ttm_bo_global_ref bo_global_ref;
41542 struct ttm_bo_device bdev;
41543- atomic_t validate_sequence;
41544 int (*move)(struct nouveau_channel *,
41545 struct ttm_buffer_object *,
41546 struct ttm_mem_reg *, struct ttm_mem_reg *);
41547diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41548index 462679a..88e32a7 100644
41549--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41550+++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41551@@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
41552 unsigned long arg)
41553 {
41554 unsigned int nr = DRM_IOCTL_NR(cmd);
41555- drm_ioctl_compat_t *fn = NULL;
41556+ drm_ioctl_compat_t fn = NULL;
41557 int ret;
41558
41559 if (nr < DRM_COMMAND_BASE)
41560diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
41561index 273e501..3b6c0a2 100644
41562--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
41563+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
41564@@ -127,11 +127,11 @@ nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41565 }
41566
41567 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
41568- nouveau_vram_manager_init,
41569- nouveau_vram_manager_fini,
41570- nouveau_vram_manager_new,
41571- nouveau_vram_manager_del,
41572- nouveau_vram_manager_debug
41573+ .init = nouveau_vram_manager_init,
41574+ .takedown = nouveau_vram_manager_fini,
41575+ .get_node = nouveau_vram_manager_new,
41576+ .put_node = nouveau_vram_manager_del,
41577+ .debug = nouveau_vram_manager_debug
41578 };
41579
41580 static int
41581@@ -195,11 +195,11 @@ nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41582 }
41583
41584 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
41585- nouveau_gart_manager_init,
41586- nouveau_gart_manager_fini,
41587- nouveau_gart_manager_new,
41588- nouveau_gart_manager_del,
41589- nouveau_gart_manager_debug
41590+ .init = nouveau_gart_manager_init,
41591+ .takedown = nouveau_gart_manager_fini,
41592+ .get_node = nouveau_gart_manager_new,
41593+ .put_node = nouveau_gart_manager_del,
41594+ .debug = nouveau_gart_manager_debug
41595 };
41596
41597 /*XXX*/
41598@@ -268,11 +268,11 @@ nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41599 }
41600
41601 const struct ttm_mem_type_manager_func nv04_gart_manager = {
41602- nv04_gart_manager_init,
41603- nv04_gart_manager_fini,
41604- nv04_gart_manager_new,
41605- nv04_gart_manager_del,
41606- nv04_gart_manager_debug
41607+ .init = nv04_gart_manager_init,
41608+ .takedown = nv04_gart_manager_fini,
41609+ .get_node = nv04_gart_manager_new,
41610+ .put_node = nv04_gart_manager_del,
41611+ .debug = nv04_gart_manager_debug
41612 };
41613
41614 int
41615diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
41616index c7592ec..dd45ebc 100644
41617--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
41618+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
41619@@ -72,7 +72,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
41620 * locking inversion with the driver load path. And the access here is
41621 * completely racy anyway. So don't bother with locking for now.
41622 */
41623- return dev->open_count == 0;
41624+ return local_read(&dev->open_count) == 0;
41625 }
41626
41627 static const struct vga_switcheroo_client_ops
41628diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
41629index 9782364..89bd954 100644
41630--- a/drivers/gpu/drm/qxl/qxl_cmd.c
41631+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
41632@@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
41633 int ret;
41634
41635 mutex_lock(&qdev->async_io_mutex);
41636- irq_num = atomic_read(&qdev->irq_received_io_cmd);
41637+ irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
41638 if (qdev->last_sent_io_cmd > irq_num) {
41639 if (intr)
41640 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
41641- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41642+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41643 else
41644 ret = wait_event_timeout(qdev->io_cmd_event,
41645- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41646+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41647 /* 0 is timeout, just bail the "hw" has gone away */
41648 if (ret <= 0)
41649 goto out;
41650- irq_num = atomic_read(&qdev->irq_received_io_cmd);
41651+ irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
41652 }
41653 outb(val, addr);
41654 qdev->last_sent_io_cmd = irq_num + 1;
41655 if (intr)
41656 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
41657- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41658+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41659 else
41660 ret = wait_event_timeout(qdev->io_cmd_event,
41661- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41662+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41663 out:
41664 if (ret > 0)
41665 ret = 0;
41666diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
41667index 6911b8c..89d6867 100644
41668--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
41669+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
41670@@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
41671 struct drm_info_node *node = (struct drm_info_node *) m->private;
41672 struct qxl_device *qdev = node->minor->dev->dev_private;
41673
41674- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
41675- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
41676- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
41677- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
41678+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received));
41679+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_display));
41680+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_cursor));
41681+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_io_cmd));
41682 seq_printf(m, "%d\n", qdev->irq_received_error);
41683 return 0;
41684 }
41685diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
41686index 7c6cafe..460f542 100644
41687--- a/drivers/gpu/drm/qxl/qxl_drv.h
41688+++ b/drivers/gpu/drm/qxl/qxl_drv.h
41689@@ -290,10 +290,10 @@ struct qxl_device {
41690 unsigned int last_sent_io_cmd;
41691
41692 /* interrupt handling */
41693- atomic_t irq_received;
41694- atomic_t irq_received_display;
41695- atomic_t irq_received_cursor;
41696- atomic_t irq_received_io_cmd;
41697+ atomic_unchecked_t irq_received;
41698+ atomic_unchecked_t irq_received_display;
41699+ atomic_unchecked_t irq_received_cursor;
41700+ atomic_unchecked_t irq_received_io_cmd;
41701 unsigned irq_received_error;
41702 wait_queue_head_t display_event;
41703 wait_queue_head_t cursor_event;
41704diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
41705index b110883..dd06418 100644
41706--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
41707+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
41708@@ -181,7 +181,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
41709
41710 /* TODO copy slow path code from i915 */
41711 fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
41712- 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);
41713+ 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);
41714
41715 {
41716 struct qxl_drawable *draw = fb_cmd;
41717@@ -201,7 +201,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
41718 struct drm_qxl_reloc reloc;
41719
41720 if (copy_from_user(&reloc,
41721- &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
41722+ &((struct drm_qxl_reloc __force_user *)(uintptr_t)cmd->relocs)[i],
41723 sizeof(reloc))) {
41724 ret = -EFAULT;
41725 goto out_free_bos;
41726@@ -294,10 +294,10 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
41727
41728 for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
41729
41730- struct drm_qxl_command *commands =
41731- (struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
41732+ struct drm_qxl_command __user *commands =
41733+ (struct drm_qxl_command __user *)(uintptr_t)execbuffer->commands;
41734
41735- if (copy_from_user(&user_cmd, &commands[cmd_num],
41736+ if (copy_from_user(&user_cmd, (struct drm_qxl_command __force_user *)&commands[cmd_num],
41737 sizeof(user_cmd)))
41738 return -EFAULT;
41739
41740diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
41741index 0bf1e20..42a7310 100644
41742--- a/drivers/gpu/drm/qxl/qxl_irq.c
41743+++ b/drivers/gpu/drm/qxl/qxl_irq.c
41744@@ -36,19 +36,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
41745 if (!pending)
41746 return IRQ_NONE;
41747
41748- atomic_inc(&qdev->irq_received);
41749+ atomic_inc_unchecked(&qdev->irq_received);
41750
41751 if (pending & QXL_INTERRUPT_DISPLAY) {
41752- atomic_inc(&qdev->irq_received_display);
41753+ atomic_inc_unchecked(&qdev->irq_received_display);
41754 wake_up_all(&qdev->display_event);
41755 qxl_queue_garbage_collect(qdev, false);
41756 }
41757 if (pending & QXL_INTERRUPT_CURSOR) {
41758- atomic_inc(&qdev->irq_received_cursor);
41759+ atomic_inc_unchecked(&qdev->irq_received_cursor);
41760 wake_up_all(&qdev->cursor_event);
41761 }
41762 if (pending & QXL_INTERRUPT_IO_CMD) {
41763- atomic_inc(&qdev->irq_received_io_cmd);
41764+ atomic_inc_unchecked(&qdev->irq_received_io_cmd);
41765 wake_up_all(&qdev->io_cmd_event);
41766 }
41767 if (pending & QXL_INTERRUPT_ERROR) {
41768@@ -85,10 +85,10 @@ int qxl_irq_init(struct qxl_device *qdev)
41769 init_waitqueue_head(&qdev->io_cmd_event);
41770 INIT_WORK(&qdev->client_monitors_config_work,
41771 qxl_client_monitors_config_work_func);
41772- atomic_set(&qdev->irq_received, 0);
41773- atomic_set(&qdev->irq_received_display, 0);
41774- atomic_set(&qdev->irq_received_cursor, 0);
41775- atomic_set(&qdev->irq_received_io_cmd, 0);
41776+ atomic_set_unchecked(&qdev->irq_received, 0);
41777+ atomic_set_unchecked(&qdev->irq_received_display, 0);
41778+ atomic_set_unchecked(&qdev->irq_received_cursor, 0);
41779+ atomic_set_unchecked(&qdev->irq_received_io_cmd, 0);
41780 qdev->irq_received_error = 0;
41781 ret = drm_irq_install(qdev->ddev, qdev->ddev->pdev->irq);
41782 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
41783diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
41784index 0cbc4c9..0e46686 100644
41785--- a/drivers/gpu/drm/qxl/qxl_ttm.c
41786+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
41787@@ -103,7 +103,7 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
41788 }
41789 }
41790
41791-static struct vm_operations_struct qxl_ttm_vm_ops;
41792+static vm_operations_struct_no_const qxl_ttm_vm_ops __read_only;
41793 static const struct vm_operations_struct *ttm_vm_ops;
41794
41795 static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
41796@@ -145,8 +145,10 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
41797 return r;
41798 if (unlikely(ttm_vm_ops == NULL)) {
41799 ttm_vm_ops = vma->vm_ops;
41800+ pax_open_kernel();
41801 qxl_ttm_vm_ops = *ttm_vm_ops;
41802 qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
41803+ pax_close_kernel();
41804 }
41805 vma->vm_ops = &qxl_ttm_vm_ops;
41806 return 0;
41807@@ -464,25 +466,23 @@ static int qxl_mm_dump_table(struct seq_file *m, void *data)
41808 static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
41809 {
41810 #if defined(CONFIG_DEBUG_FS)
41811- static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
41812- static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
41813- unsigned i;
41814+ static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES] = {
41815+ {
41816+ .name = "qxl_mem_mm",
41817+ .show = &qxl_mm_dump_table,
41818+ },
41819+ {
41820+ .name = "qxl_surf_mm",
41821+ .show = &qxl_mm_dump_table,
41822+ }
41823+ };
41824
41825- for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
41826- if (i == 0)
41827- sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
41828- else
41829- sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
41830- qxl_mem_types_list[i].name = qxl_mem_types_names[i];
41831- qxl_mem_types_list[i].show = &qxl_mm_dump_table;
41832- qxl_mem_types_list[i].driver_features = 0;
41833- if (i == 0)
41834- qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
41835- else
41836- qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
41837+ pax_open_kernel();
41838+ *(void **)&qxl_mem_types_list[0].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
41839+ *(void **)&qxl_mem_types_list[1].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
41840+ pax_close_kernel();
41841
41842- }
41843- return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
41844+ return qxl_debugfs_add_files(qdev, qxl_mem_types_list, QXL_DEBUGFS_MEM_TYPES);
41845 #else
41846 return 0;
41847 #endif
41848diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
41849index 2c45ac9..5d740f8 100644
41850--- a/drivers/gpu/drm/r128/r128_cce.c
41851+++ b/drivers/gpu/drm/r128/r128_cce.c
41852@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
41853
41854 /* GH: Simple idle check.
41855 */
41856- atomic_set(&dev_priv->idle_count, 0);
41857+ atomic_set_unchecked(&dev_priv->idle_count, 0);
41858
41859 /* We don't support anything other than bus-mastering ring mode,
41860 * but the ring can be in either AGP or PCI space for the ring
41861diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
41862index 723e5d6..102dbaf 100644
41863--- a/drivers/gpu/drm/r128/r128_drv.h
41864+++ b/drivers/gpu/drm/r128/r128_drv.h
41865@@ -93,14 +93,14 @@ typedef struct drm_r128_private {
41866 int is_pci;
41867 unsigned long cce_buffers_offset;
41868
41869- atomic_t idle_count;
41870+ atomic_unchecked_t idle_count;
41871
41872 int page_flipping;
41873 int current_page;
41874 u32 crtc_offset;
41875 u32 crtc_offset_cntl;
41876
41877- atomic_t vbl_received;
41878+ atomic_unchecked_t vbl_received;
41879
41880 u32 color_fmt;
41881 unsigned int front_offset;
41882diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
41883index 663f38c..ec159a1 100644
41884--- a/drivers/gpu/drm/r128/r128_ioc32.c
41885+++ b/drivers/gpu/drm/r128/r128_ioc32.c
41886@@ -178,7 +178,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
41887 return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
41888 }
41889
41890-drm_ioctl_compat_t *r128_compat_ioctls[] = {
41891+drm_ioctl_compat_t r128_compat_ioctls[] = {
41892 [DRM_R128_INIT] = compat_r128_init,
41893 [DRM_R128_DEPTH] = compat_r128_depth,
41894 [DRM_R128_STIPPLE] = compat_r128_stipple,
41895@@ -197,17 +197,13 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
41896 long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41897 {
41898 unsigned int nr = DRM_IOCTL_NR(cmd);
41899- drm_ioctl_compat_t *fn = NULL;
41900 int ret;
41901
41902 if (nr < DRM_COMMAND_BASE)
41903 return drm_compat_ioctl(filp, cmd, arg);
41904
41905- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls))
41906- fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
41907-
41908- if (fn != NULL)
41909- ret = (*fn) (filp, cmd, arg);
41910+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls) && r128_compat_ioctls[nr - DRM_COMMAND_BASE])
41911+ ret = (*r128_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
41912 else
41913 ret = drm_ioctl(filp, cmd, arg);
41914
41915diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
41916index c2ae496..30b5993 100644
41917--- a/drivers/gpu/drm/r128/r128_irq.c
41918+++ b/drivers/gpu/drm/r128/r128_irq.c
41919@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
41920 if (crtc != 0)
41921 return 0;
41922
41923- return atomic_read(&dev_priv->vbl_received);
41924+ return atomic_read_unchecked(&dev_priv->vbl_received);
41925 }
41926
41927 irqreturn_t r128_driver_irq_handler(int irq, void *arg)
41928@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
41929 /* VBLANK interrupt */
41930 if (status & R128_CRTC_VBLANK_INT) {
41931 R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
41932- atomic_inc(&dev_priv->vbl_received);
41933+ atomic_inc_unchecked(&dev_priv->vbl_received);
41934 drm_handle_vblank(dev, 0);
41935 return IRQ_HANDLED;
41936 }
41937diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
41938index 8fd2d9f..18c9660 100644
41939--- a/drivers/gpu/drm/r128/r128_state.c
41940+++ b/drivers/gpu/drm/r128/r128_state.c
41941@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
41942
41943 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
41944 {
41945- if (atomic_read(&dev_priv->idle_count) == 0)
41946+ if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
41947 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
41948 else
41949- atomic_set(&dev_priv->idle_count, 0);
41950+ atomic_set_unchecked(&dev_priv->idle_count, 0);
41951 }
41952
41953 #endif
41954diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
41955index b928c17..e5d9400 100644
41956--- a/drivers/gpu/drm/radeon/mkregtable.c
41957+++ b/drivers/gpu/drm/radeon/mkregtable.c
41958@@ -624,14 +624,14 @@ static int parser_auth(struct table *t, const char *filename)
41959 regex_t mask_rex;
41960 regmatch_t match[4];
41961 char buf[1024];
41962- size_t end;
41963+ long end;
41964 int len;
41965 int done = 0;
41966 int r;
41967 unsigned o;
41968 struct offset *offset;
41969 char last_reg_s[10];
41970- int last_reg;
41971+ unsigned long last_reg;
41972
41973 if (regcomp
41974 (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
41975diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
41976index bd7519f..e1c2cd95 100644
41977--- a/drivers/gpu/drm/radeon/radeon_device.c
41978+++ b/drivers/gpu/drm/radeon/radeon_device.c
41979@@ -1247,7 +1247,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
41980 * locking inversion with the driver load path. And the access here is
41981 * completely racy anyway. So don't bother with locking for now.
41982 */
41983- return dev->open_count == 0;
41984+ return local_read(&dev->open_count) == 0;
41985 }
41986
41987 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
41988diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
41989index 46bd393..6ae4719 100644
41990--- a/drivers/gpu/drm/radeon/radeon_drv.h
41991+++ b/drivers/gpu/drm/radeon/radeon_drv.h
41992@@ -264,7 +264,7 @@ typedef struct drm_radeon_private {
41993
41994 /* SW interrupt */
41995 wait_queue_head_t swi_queue;
41996- atomic_t swi_emitted;
41997+ atomic_unchecked_t swi_emitted;
41998 int vblank_crtc;
41999 uint32_t irq_enable_reg;
42000 uint32_t r500_disp_irq_reg;
42001diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
42002index 0b98ea1..a3c770f 100644
42003--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
42004+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
42005@@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
42006 request = compat_alloc_user_space(sizeof(*request));
42007 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
42008 || __put_user(req32.param, &request->param)
42009- || __put_user((void __user *)(unsigned long)req32.value,
42010+ || __put_user((unsigned long)req32.value,
42011 &request->value))
42012 return -EFAULT;
42013
42014@@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
42015 #define compat_radeon_cp_setparam NULL
42016 #endif /* X86_64 || IA64 */
42017
42018-static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
42019+static drm_ioctl_compat_t radeon_compat_ioctls[] = {
42020 [DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
42021 [DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
42022 [DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
42023@@ -393,17 +393,13 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
42024 long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
42025 {
42026 unsigned int nr = DRM_IOCTL_NR(cmd);
42027- drm_ioctl_compat_t *fn = NULL;
42028 int ret;
42029
42030 if (nr < DRM_COMMAND_BASE)
42031 return drm_compat_ioctl(filp, cmd, arg);
42032
42033- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls))
42034- fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
42035-
42036- if (fn != NULL)
42037- ret = (*fn) (filp, cmd, arg);
42038+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls) && radeon_compat_ioctls[nr - DRM_COMMAND_BASE])
42039+ ret = (*radeon_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
42040 else
42041 ret = drm_ioctl(filp, cmd, arg);
42042
42043diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
42044index 244b19b..c19226d 100644
42045--- a/drivers/gpu/drm/radeon/radeon_irq.c
42046+++ b/drivers/gpu/drm/radeon/radeon_irq.c
42047@@ -226,8 +226,8 @@ static int radeon_emit_irq(struct drm_device * dev)
42048 unsigned int ret;
42049 RING_LOCALS;
42050
42051- atomic_inc(&dev_priv->swi_emitted);
42052- ret = atomic_read(&dev_priv->swi_emitted);
42053+ atomic_inc_unchecked(&dev_priv->swi_emitted);
42054+ ret = atomic_read_unchecked(&dev_priv->swi_emitted);
42055
42056 BEGIN_RING(4);
42057 OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
42058@@ -353,7 +353,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
42059 drm_radeon_private_t *dev_priv =
42060 (drm_radeon_private_t *) dev->dev_private;
42061
42062- atomic_set(&dev_priv->swi_emitted, 0);
42063+ atomic_set_unchecked(&dev_priv->swi_emitted, 0);
42064 init_waitqueue_head(&dev_priv->swi_queue);
42065
42066 dev->max_vblank_count = 0x001fffff;
42067diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
42068index 15aee72..cda326e 100644
42069--- a/drivers/gpu/drm/radeon/radeon_state.c
42070+++ b/drivers/gpu/drm/radeon/radeon_state.c
42071@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
42072 if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
42073 sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
42074
42075- if (copy_from_user(&depth_boxes, clear->depth_boxes,
42076+ if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || copy_from_user(&depth_boxes, clear->depth_boxes,
42077 sarea_priv->nbox * sizeof(depth_boxes[0])))
42078 return -EFAULT;
42079
42080@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
42081 {
42082 drm_radeon_private_t *dev_priv = dev->dev_private;
42083 drm_radeon_getparam_t *param = data;
42084- int value;
42085+ int value = 0;
42086
42087 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
42088
42089diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
42090index edafd3c..3af7c9c 100644
42091--- a/drivers/gpu/drm/radeon/radeon_ttm.c
42092+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
42093@@ -961,7 +961,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
42094 man->size = size >> PAGE_SHIFT;
42095 }
42096
42097-static struct vm_operations_struct radeon_ttm_vm_ops;
42098+static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
42099 static const struct vm_operations_struct *ttm_vm_ops = NULL;
42100
42101 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
42102@@ -1002,8 +1002,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
42103 }
42104 if (unlikely(ttm_vm_ops == NULL)) {
42105 ttm_vm_ops = vma->vm_ops;
42106+ pax_open_kernel();
42107 radeon_ttm_vm_ops = *ttm_vm_ops;
42108 radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
42109+ pax_close_kernel();
42110 }
42111 vma->vm_ops = &radeon_ttm_vm_ops;
42112 return 0;
42113diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
42114index 1a52522..8e78043 100644
42115--- a/drivers/gpu/drm/tegra/dc.c
42116+++ b/drivers/gpu/drm/tegra/dc.c
42117@@ -1585,7 +1585,7 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
42118 }
42119
42120 for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
42121- dc->debugfs_files[i].data = dc;
42122+ *(void **)&dc->debugfs_files[i].data = dc;
42123
42124 err = drm_debugfs_create_files(dc->debugfs_files,
42125 ARRAY_SIZE(debugfs_files),
42126diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
42127index ed970f6..4eeea42 100644
42128--- a/drivers/gpu/drm/tegra/dsi.c
42129+++ b/drivers/gpu/drm/tegra/dsi.c
42130@@ -62,7 +62,7 @@ struct tegra_dsi {
42131 struct clk *clk_lp;
42132 struct clk *clk;
42133
42134- struct drm_info_list *debugfs_files;
42135+ drm_info_list_no_const *debugfs_files;
42136 struct drm_minor *minor;
42137 struct dentry *debugfs;
42138
42139diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
42140index 7eaaee74..cc2bc04 100644
42141--- a/drivers/gpu/drm/tegra/hdmi.c
42142+++ b/drivers/gpu/drm/tegra/hdmi.c
42143@@ -64,7 +64,7 @@ struct tegra_hdmi {
42144 bool stereo;
42145 bool dvi;
42146
42147- struct drm_info_list *debugfs_files;
42148+ drm_info_list_no_const *debugfs_files;
42149 struct drm_minor *minor;
42150 struct dentry *debugfs;
42151 };
42152diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
42153index aa0bd054..aea6a01 100644
42154--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
42155+++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
42156@@ -148,10 +148,10 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
42157 }
42158
42159 const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
42160- ttm_bo_man_init,
42161- ttm_bo_man_takedown,
42162- ttm_bo_man_get_node,
42163- ttm_bo_man_put_node,
42164- ttm_bo_man_debug
42165+ .init = ttm_bo_man_init,
42166+ .takedown = ttm_bo_man_takedown,
42167+ .get_node = ttm_bo_man_get_node,
42168+ .put_node = ttm_bo_man_put_node,
42169+ .debug = ttm_bo_man_debug
42170 };
42171 EXPORT_SYMBOL(ttm_bo_manager_func);
42172diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
42173index a1803fb..c53f6b0 100644
42174--- a/drivers/gpu/drm/ttm/ttm_memory.c
42175+++ b/drivers/gpu/drm/ttm/ttm_memory.c
42176@@ -264,7 +264,7 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
42177 zone->glob = glob;
42178 glob->zone_kernel = zone;
42179 ret = kobject_init_and_add(
42180- &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
42181+ &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
42182 if (unlikely(ret != 0)) {
42183 kobject_put(&zone->kobj);
42184 return ret;
42185@@ -348,7 +348,7 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
42186 zone->glob = glob;
42187 glob->zone_dma32 = zone;
42188 ret = kobject_init_and_add(
42189- &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
42190+ &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
42191 if (unlikely(ret != 0)) {
42192 kobject_put(&zone->kobj);
42193 return ret;
42194diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
42195index 025c429..314062f 100644
42196--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
42197+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
42198@@ -54,7 +54,7 @@
42199
42200 #define NUM_PAGES_TO_ALLOC (PAGE_SIZE/sizeof(struct page *))
42201 #define SMALL_ALLOCATION 16
42202-#define FREE_ALL_PAGES (~0U)
42203+#define FREE_ALL_PAGES (~0UL)
42204 /* times are in msecs */
42205 #define PAGE_FREE_INTERVAL 1000
42206
42207@@ -299,15 +299,14 @@ static void ttm_pool_update_free_locked(struct ttm_page_pool *pool,
42208 * @free_all: If set to true will free all pages in pool
42209 * @use_static: Safe to use static buffer
42210 **/
42211-static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
42212+static unsigned long ttm_page_pool_free(struct ttm_page_pool *pool, unsigned long nr_free,
42213 bool use_static)
42214 {
42215 static struct page *static_buf[NUM_PAGES_TO_ALLOC];
42216 unsigned long irq_flags;
42217 struct page *p;
42218 struct page **pages_to_free;
42219- unsigned freed_pages = 0,
42220- npages_to_free = nr_free;
42221+ unsigned long freed_pages = 0, npages_to_free = nr_free;
42222
42223 if (NUM_PAGES_TO_ALLOC < nr_free)
42224 npages_to_free = NUM_PAGES_TO_ALLOC;
42225@@ -371,7 +370,8 @@ restart:
42226 __list_del(&p->lru, &pool->list);
42227
42228 ttm_pool_update_free_locked(pool, freed_pages);
42229- nr_free -= freed_pages;
42230+ if (likely(nr_free != FREE_ALL_PAGES))
42231+ nr_free -= freed_pages;
42232 }
42233
42234 spin_unlock_irqrestore(&pool->lock, irq_flags);
42235@@ -399,7 +399,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42236 unsigned i;
42237 unsigned pool_offset;
42238 struct ttm_page_pool *pool;
42239- int shrink_pages = sc->nr_to_scan;
42240+ unsigned long shrink_pages = sc->nr_to_scan;
42241 unsigned long freed = 0;
42242
42243 if (!mutex_trylock(&lock))
42244@@ -407,7 +407,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42245 pool_offset = ++start_pool % NUM_POOLS;
42246 /* select start pool in round robin fashion */
42247 for (i = 0; i < NUM_POOLS; ++i) {
42248- unsigned nr_free = shrink_pages;
42249+ unsigned long nr_free = shrink_pages;
42250 if (shrink_pages == 0)
42251 break;
42252 pool = &_manager->pools[(i + pool_offset)%NUM_POOLS];
42253@@ -673,7 +673,7 @@ out:
42254 }
42255
42256 /* Put all pages in pages list to correct pool to wait for reuse */
42257-static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
42258+static void ttm_put_pages(struct page **pages, unsigned long npages, int flags,
42259 enum ttm_caching_state cstate)
42260 {
42261 unsigned long irq_flags;
42262@@ -728,7 +728,7 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
42263 struct list_head plist;
42264 struct page *p = NULL;
42265 gfp_t gfp_flags = GFP_USER;
42266- unsigned count;
42267+ unsigned long count;
42268 int r;
42269
42270 /* set zero flag for page allocation if required */
42271diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42272index 01e1d27..aaa018a 100644
42273--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42274+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42275@@ -56,7 +56,7 @@
42276
42277 #define NUM_PAGES_TO_ALLOC (PAGE_SIZE/sizeof(struct page *))
42278 #define SMALL_ALLOCATION 4
42279-#define FREE_ALL_PAGES (~0U)
42280+#define FREE_ALL_PAGES (~0UL)
42281 /* times are in msecs */
42282 #define IS_UNDEFINED (0)
42283 #define IS_WC (1<<1)
42284@@ -413,7 +413,7 @@ static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
42285 * @nr_free: If set to true will free all pages in pool
42286 * @use_static: Safe to use static buffer
42287 **/
42288-static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
42289+static unsigned long ttm_dma_page_pool_free(struct dma_pool *pool, unsigned long nr_free,
42290 bool use_static)
42291 {
42292 static struct page *static_buf[NUM_PAGES_TO_ALLOC];
42293@@ -421,8 +421,7 @@ static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
42294 struct dma_page *dma_p, *tmp;
42295 struct page **pages_to_free;
42296 struct list_head d_pages;
42297- unsigned freed_pages = 0,
42298- npages_to_free = nr_free;
42299+ unsigned long freed_pages = 0, npages_to_free = nr_free;
42300
42301 if (NUM_PAGES_TO_ALLOC < nr_free)
42302 npages_to_free = NUM_PAGES_TO_ALLOC;
42303@@ -499,7 +498,8 @@ restart:
42304 /* remove range of pages from the pool */
42305 if (freed_pages) {
42306 ttm_pool_update_free_locked(pool, freed_pages);
42307- nr_free -= freed_pages;
42308+ if (likely(nr_free != FREE_ALL_PAGES))
42309+ nr_free -= freed_pages;
42310 }
42311
42312 spin_unlock_irqrestore(&pool->lock, irq_flags);
42313@@ -936,7 +936,7 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
42314 struct dma_page *d_page, *next;
42315 enum pool_type type;
42316 bool is_cached = false;
42317- unsigned count = 0, i, npages = 0;
42318+ unsigned long count = 0, i, npages = 0;
42319 unsigned long irq_flags;
42320
42321 type = ttm_to_type(ttm->page_flags, ttm->caching_state);
42322@@ -1012,7 +1012,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42323 static unsigned start_pool;
42324 unsigned idx = 0;
42325 unsigned pool_offset;
42326- unsigned shrink_pages = sc->nr_to_scan;
42327+ unsigned long shrink_pages = sc->nr_to_scan;
42328 struct device_pools *p;
42329 unsigned long freed = 0;
42330
42331@@ -1025,7 +1025,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42332 goto out;
42333 pool_offset = ++start_pool % _manager->npools;
42334 list_for_each_entry(p, &_manager->pools, pools) {
42335- unsigned nr_free;
42336+ unsigned long nr_free;
42337
42338 if (!p->dev)
42339 continue;
42340@@ -1039,7 +1039,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42341 shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free, true);
42342 freed += nr_free - shrink_pages;
42343
42344- pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
42345+ pr_debug("%s: (%s:%d) Asked to shrink %lu, have %lu more to go\n",
42346 p->pool->dev_name, p->pool->name, current->pid,
42347 nr_free, shrink_pages);
42348 }
42349diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
42350index 5fc16ce..1bd84ec 100644
42351--- a/drivers/gpu/drm/udl/udl_fb.c
42352+++ b/drivers/gpu/drm/udl/udl_fb.c
42353@@ -367,7 +367,6 @@ static int udl_fb_release(struct fb_info *info, int user)
42354 fb_deferred_io_cleanup(info);
42355 kfree(info->fbdefio);
42356 info->fbdefio = NULL;
42357- info->fbops->fb_mmap = udl_fb_mmap;
42358 }
42359
42360 pr_warn("released /dev/fb%d user=%d count=%d\n",
42361diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
42362index ef8c500..01030c8 100644
42363--- a/drivers/gpu/drm/via/via_drv.h
42364+++ b/drivers/gpu/drm/via/via_drv.h
42365@@ -53,7 +53,7 @@ typedef struct drm_via_ring_buffer {
42366 typedef uint32_t maskarray_t[5];
42367
42368 typedef struct drm_via_irq {
42369- atomic_t irq_received;
42370+ atomic_unchecked_t irq_received;
42371 uint32_t pending_mask;
42372 uint32_t enable_mask;
42373 wait_queue_head_t irq_queue;
42374@@ -77,7 +77,7 @@ typedef struct drm_via_private {
42375 struct timeval last_vblank;
42376 int last_vblank_valid;
42377 unsigned usec_per_vblank;
42378- atomic_t vbl_received;
42379+ atomic_unchecked_t vbl_received;
42380 drm_via_state_t hc_state;
42381 char pci_buf[VIA_PCI_BUF_SIZE];
42382 const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
42383diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
42384index 1319433..a993b0c 100644
42385--- a/drivers/gpu/drm/via/via_irq.c
42386+++ b/drivers/gpu/drm/via/via_irq.c
42387@@ -101,7 +101,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
42388 if (crtc != 0)
42389 return 0;
42390
42391- return atomic_read(&dev_priv->vbl_received);
42392+ return atomic_read_unchecked(&dev_priv->vbl_received);
42393 }
42394
42395 irqreturn_t via_driver_irq_handler(int irq, void *arg)
42396@@ -116,8 +116,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42397
42398 status = VIA_READ(VIA_REG_INTERRUPT);
42399 if (status & VIA_IRQ_VBLANK_PENDING) {
42400- atomic_inc(&dev_priv->vbl_received);
42401- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
42402+ atomic_inc_unchecked(&dev_priv->vbl_received);
42403+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
42404 do_gettimeofday(&cur_vblank);
42405 if (dev_priv->last_vblank_valid) {
42406 dev_priv->usec_per_vblank =
42407@@ -127,7 +127,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42408 dev_priv->last_vblank = cur_vblank;
42409 dev_priv->last_vblank_valid = 1;
42410 }
42411- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
42412+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
42413 DRM_DEBUG("US per vblank is: %u\n",
42414 dev_priv->usec_per_vblank);
42415 }
42416@@ -137,7 +137,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42417
42418 for (i = 0; i < dev_priv->num_irqs; ++i) {
42419 if (status & cur_irq->pending_mask) {
42420- atomic_inc(&cur_irq->irq_received);
42421+ atomic_inc_unchecked(&cur_irq->irq_received);
42422 wake_up(&cur_irq->irq_queue);
42423 handled = 1;
42424 if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
42425@@ -242,11 +242,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
42426 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
42427 ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
42428 masks[irq][4]));
42429- cur_irq_sequence = atomic_read(&cur_irq->irq_received);
42430+ cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
42431 } else {
42432 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
42433 (((cur_irq_sequence =
42434- atomic_read(&cur_irq->irq_received)) -
42435+ atomic_read_unchecked(&cur_irq->irq_received)) -
42436 *sequence) <= (1 << 23)));
42437 }
42438 *sequence = cur_irq_sequence;
42439@@ -284,7 +284,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
42440 }
42441
42442 for (i = 0; i < dev_priv->num_irqs; ++i) {
42443- atomic_set(&cur_irq->irq_received, 0);
42444+ atomic_set_unchecked(&cur_irq->irq_received, 0);
42445 cur_irq->enable_mask = dev_priv->irq_masks[i][0];
42446 cur_irq->pending_mask = dev_priv->irq_masks[i][1];
42447 init_waitqueue_head(&cur_irq->irq_queue);
42448@@ -366,7 +366,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
42449 switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
42450 case VIA_IRQ_RELATIVE:
42451 irqwait->request.sequence +=
42452- atomic_read(&cur_irq->irq_received);
42453+ atomic_read_unchecked(&cur_irq->irq_received);
42454 irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
42455 case VIA_IRQ_ABSOLUTE:
42456 break;
42457diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42458index d26a6da..5fa41ed 100644
42459--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42460+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42461@@ -447,7 +447,7 @@ struct vmw_private {
42462 * Fencing and IRQs.
42463 */
42464
42465- atomic_t marker_seq;
42466+ atomic_unchecked_t marker_seq;
42467 wait_queue_head_t fence_queue;
42468 wait_queue_head_t fifo_queue;
42469 spinlock_t waiter_lock;
42470diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42471index 39f2b03..d1b0a64 100644
42472--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42473+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42474@@ -152,7 +152,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
42475 (unsigned int) min,
42476 (unsigned int) fifo->capabilities);
42477
42478- atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
42479+ atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
42480 iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
42481 vmw_marker_queue_init(&fifo->marker_queue);
42482 return vmw_fifo_send_fence(dev_priv, &dummy);
42483@@ -372,7 +372,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
42484 if (reserveable)
42485 iowrite32(bytes, fifo_mem +
42486 SVGA_FIFO_RESERVED);
42487- return fifo_mem + (next_cmd >> 2);
42488+ return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
42489 } else {
42490 need_bounce = true;
42491 }
42492@@ -492,7 +492,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
42493
42494 fm = vmw_fifo_reserve(dev_priv, bytes);
42495 if (unlikely(fm == NULL)) {
42496- *seqno = atomic_read(&dev_priv->marker_seq);
42497+ *seqno = atomic_read_unchecked(&dev_priv->marker_seq);
42498 ret = -ENOMEM;
42499 (void)vmw_fallback_wait(dev_priv, false, true, *seqno,
42500 false, 3*HZ);
42501@@ -500,7 +500,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
42502 }
42503
42504 do {
42505- *seqno = atomic_add_return(1, &dev_priv->marker_seq);
42506+ *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
42507 } while (*seqno == 0);
42508
42509 if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
42510diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42511index 170b61b..fec7348 100644
42512--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42513+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42514@@ -164,9 +164,9 @@ static void vmw_gmrid_man_debug(struct ttm_mem_type_manager *man,
42515 }
42516
42517 const struct ttm_mem_type_manager_func vmw_gmrid_manager_func = {
42518- vmw_gmrid_man_init,
42519- vmw_gmrid_man_takedown,
42520- vmw_gmrid_man_get_node,
42521- vmw_gmrid_man_put_node,
42522- vmw_gmrid_man_debug
42523+ .init = vmw_gmrid_man_init,
42524+ .takedown = vmw_gmrid_man_takedown,
42525+ .get_node = vmw_gmrid_man_get_node,
42526+ .put_node = vmw_gmrid_man_put_node,
42527+ .debug = vmw_gmrid_man_debug
42528 };
42529diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42530index 69c8ce2..cacb0ab 100644
42531--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42532+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42533@@ -235,7 +235,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
42534 int ret;
42535
42536 num_clips = arg->num_clips;
42537- clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
42538+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
42539
42540 if (unlikely(num_clips == 0))
42541 return 0;
42542@@ -318,7 +318,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
42543 int ret;
42544
42545 num_clips = arg->num_clips;
42546- clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
42547+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
42548
42549 if (unlikely(num_clips == 0))
42550 return 0;
42551diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42552index 9fe9827..0aa2fc0 100644
42553--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42554+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42555@@ -102,7 +102,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
42556 * emitted. Then the fence is stale and signaled.
42557 */
42558
42559- ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
42560+ ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
42561 > VMW_FENCE_WRAP);
42562
42563 return ret;
42564@@ -133,7 +133,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
42565
42566 if (fifo_idle)
42567 down_read(&fifo_state->rwsem);
42568- signal_seq = atomic_read(&dev_priv->marker_seq);
42569+ signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
42570 ret = 0;
42571
42572 for (;;) {
42573diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42574index efd1ffd..0ae13ca 100644
42575--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42576+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42577@@ -135,7 +135,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
42578 while (!vmw_lag_lt(queue, us)) {
42579 spin_lock(&queue->lock);
42580 if (list_empty(&queue->head))
42581- seqno = atomic_read(&dev_priv->marker_seq);
42582+ seqno = atomic_read_unchecked(&dev_priv->marker_seq);
42583 else {
42584 marker = list_first_entry(&queue->head,
42585 struct vmw_marker, head);
42586diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
42587index 37ac7b5..d52a5c9 100644
42588--- a/drivers/gpu/vga/vga_switcheroo.c
42589+++ b/drivers/gpu/vga/vga_switcheroo.c
42590@@ -644,7 +644,7 @@ static int vga_switcheroo_runtime_resume(struct device *dev)
42591
42592 /* this version is for the case where the power switch is separate
42593 to the device being powered down. */
42594-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain)
42595+int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain)
42596 {
42597 /* copy over all the bus versions */
42598 if (dev->bus && dev->bus->pm) {
42599@@ -695,7 +695,7 @@ static int vga_switcheroo_runtime_resume_hdmi_audio(struct device *dev)
42600 return ret;
42601 }
42602
42603-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain)
42604+int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain)
42605 {
42606 /* copy over all the bus versions */
42607 if (dev->bus && dev->bus->pm) {
42608diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
42609index 56ce8c2..32ce524 100644
42610--- a/drivers/hid/hid-core.c
42611+++ b/drivers/hid/hid-core.c
42612@@ -2531,7 +2531,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
42613
42614 int hid_add_device(struct hid_device *hdev)
42615 {
42616- static atomic_t id = ATOMIC_INIT(0);
42617+ static atomic_unchecked_t id = ATOMIC_INIT(0);
42618 int ret;
42619
42620 if (WARN_ON(hdev->status & HID_STAT_ADDED))
42621@@ -2574,7 +2574,7 @@ int hid_add_device(struct hid_device *hdev)
42622 /* XXX hack, any other cleaner solution after the driver core
42623 * is converted to allow more than 20 bytes as the device name? */
42624 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
42625- hdev->vendor, hdev->product, atomic_inc_return(&id));
42626+ hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
42627
42628 hid_debug_register(hdev, dev_name(&hdev->dev));
42629 ret = device_add(&hdev->dev);
42630diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
42631index c13fb5b..55a3802 100644
42632--- a/drivers/hid/hid-wiimote-debug.c
42633+++ b/drivers/hid/hid-wiimote-debug.c
42634@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
42635 else if (size == 0)
42636 return -EIO;
42637
42638- if (copy_to_user(u, buf, size))
42639+ if (size > sizeof(buf) || copy_to_user(u, buf, size))
42640 return -EFAULT;
42641
42642 *off += size;
42643diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
42644index 00bc30e..d8e5097 100644
42645--- a/drivers/hv/channel.c
42646+++ b/drivers/hv/channel.c
42647@@ -370,7 +370,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
42648 int ret = 0;
42649
42650 next_gpadl_handle =
42651- (atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
42652+ (atomic_inc_return_unchecked(&vmbus_connection.next_gpadl_handle) - 1);
42653
42654 ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
42655 if (ret)
42656diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
42657index 50e51a5..b0bfd78 100644
42658--- a/drivers/hv/hv.c
42659+++ b/drivers/hv/hv.c
42660@@ -118,7 +118,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
42661 u64 output_address = (output) ? virt_to_phys(output) : 0;
42662 u32 output_address_hi = output_address >> 32;
42663 u32 output_address_lo = output_address & 0xFFFFFFFF;
42664- void *hypercall_page = hv_context.hypercall_page;
42665+ void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
42666
42667 __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
42668 "=a"(hv_status_lo) : "d" (control_hi),
42669@@ -164,7 +164,7 @@ int hv_init(void)
42670 /* See if the hypercall page is already set */
42671 rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
42672
42673- virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
42674+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
42675
42676 if (!virtaddr)
42677 goto cleanup;
42678diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
42679index ff16938..e60879c 100644
42680--- a/drivers/hv/hv_balloon.c
42681+++ b/drivers/hv/hv_balloon.c
42682@@ -470,7 +470,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
42683
42684 module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
42685 MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
42686-static atomic_t trans_id = ATOMIC_INIT(0);
42687+static atomic_unchecked_t trans_id = ATOMIC_INIT(0);
42688
42689 static int dm_ring_size = (5 * PAGE_SIZE);
42690
42691@@ -947,7 +947,7 @@ static void hot_add_req(struct work_struct *dummy)
42692 pr_info("Memory hot add failed\n");
42693
42694 dm->state = DM_INITIALIZED;
42695- resp.hdr.trans_id = atomic_inc_return(&trans_id);
42696+ resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42697 vmbus_sendpacket(dm->dev->channel, &resp,
42698 sizeof(struct dm_hot_add_response),
42699 (unsigned long)NULL,
42700@@ -1028,7 +1028,7 @@ static void post_status(struct hv_dynmem_device *dm)
42701 memset(&status, 0, sizeof(struct dm_status));
42702 status.hdr.type = DM_STATUS_REPORT;
42703 status.hdr.size = sizeof(struct dm_status);
42704- status.hdr.trans_id = atomic_inc_return(&trans_id);
42705+ status.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42706
42707 /*
42708 * The host expects the guest to report free memory.
42709@@ -1048,7 +1048,7 @@ static void post_status(struct hv_dynmem_device *dm)
42710 * send the status. This can happen if we were interrupted
42711 * after we picked our transaction ID.
42712 */
42713- if (status.hdr.trans_id != atomic_read(&trans_id))
42714+ if (status.hdr.trans_id != atomic_read_unchecked(&trans_id))
42715 return;
42716
42717 /*
42718@@ -1188,7 +1188,7 @@ static void balloon_up(struct work_struct *dummy)
42719 */
42720
42721 do {
42722- bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
42723+ bl_resp->hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42724 ret = vmbus_sendpacket(dm_device.dev->channel,
42725 bl_resp,
42726 bl_resp->hdr.size,
42727@@ -1234,7 +1234,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
42728
42729 memset(&resp, 0, sizeof(struct dm_unballoon_response));
42730 resp.hdr.type = DM_UNBALLOON_RESPONSE;
42731- resp.hdr.trans_id = atomic_inc_return(&trans_id);
42732+ resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42733 resp.hdr.size = sizeof(struct dm_unballoon_response);
42734
42735 vmbus_sendpacket(dm_device.dev->channel, &resp,
42736@@ -1295,7 +1295,7 @@ static void version_resp(struct hv_dynmem_device *dm,
42737 memset(&version_req, 0, sizeof(struct dm_version_request));
42738 version_req.hdr.type = DM_VERSION_REQUEST;
42739 version_req.hdr.size = sizeof(struct dm_version_request);
42740- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
42741+ version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42742 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN7;
42743 version_req.is_last_attempt = 1;
42744
42745@@ -1468,7 +1468,7 @@ static int balloon_probe(struct hv_device *dev,
42746 memset(&version_req, 0, sizeof(struct dm_version_request));
42747 version_req.hdr.type = DM_VERSION_REQUEST;
42748 version_req.hdr.size = sizeof(struct dm_version_request);
42749- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
42750+ version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42751 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN8;
42752 version_req.is_last_attempt = 0;
42753
42754@@ -1499,7 +1499,7 @@ static int balloon_probe(struct hv_device *dev,
42755 memset(&cap_msg, 0, sizeof(struct dm_capabilities));
42756 cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
42757 cap_msg.hdr.size = sizeof(struct dm_capabilities);
42758- cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
42759+ cap_msg.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42760
42761 cap_msg.caps.cap_bits.balloon = 1;
42762 cap_msg.caps.cap_bits.hot_add = 1;
42763diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
42764index 44b1c94..6dccc2c 100644
42765--- a/drivers/hv/hyperv_vmbus.h
42766+++ b/drivers/hv/hyperv_vmbus.h
42767@@ -632,7 +632,7 @@ enum vmbus_connect_state {
42768 struct vmbus_connection {
42769 enum vmbus_connect_state conn_state;
42770
42771- atomic_t next_gpadl_handle;
42772+ atomic_unchecked_t next_gpadl_handle;
42773
42774 /*
42775 * Represents channel interrupts. Each bit position represents a
42776diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
42777index f518b8d7..4bc0b64 100644
42778--- a/drivers/hv/vmbus_drv.c
42779+++ b/drivers/hv/vmbus_drv.c
42780@@ -840,10 +840,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
42781 {
42782 int ret = 0;
42783
42784- static atomic_t device_num = ATOMIC_INIT(0);
42785+ static atomic_unchecked_t device_num = ATOMIC_INIT(0);
42786
42787 dev_set_name(&child_device_obj->device, "vmbus_0_%d",
42788- atomic_inc_return(&device_num));
42789+ atomic_inc_return_unchecked(&device_num));
42790
42791 child_device_obj->device.bus = &hv_bus;
42792 child_device_obj->device.parent = &hv_acpi_dev->dev;
42793diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
42794index 579bdf9..0dac21d5 100644
42795--- a/drivers/hwmon/acpi_power_meter.c
42796+++ b/drivers/hwmon/acpi_power_meter.c
42797@@ -116,7 +116,7 @@ struct sensor_template {
42798 struct device_attribute *devattr,
42799 const char *buf, size_t count);
42800 int index;
42801-};
42802+} __do_const;
42803
42804 /* Averaging interval */
42805 static int update_avg_interval(struct acpi_power_meter_resource *resource)
42806@@ -631,7 +631,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
42807 struct sensor_template *attrs)
42808 {
42809 struct device *dev = &resource->acpi_dev->dev;
42810- struct sensor_device_attribute *sensors =
42811+ sensor_device_attribute_no_const *sensors =
42812 &resource->sensors[resource->num_sensors];
42813 int res = 0;
42814
42815@@ -973,7 +973,7 @@ static int __init enable_cap_knobs(const struct dmi_system_id *d)
42816 return 0;
42817 }
42818
42819-static struct dmi_system_id __initdata pm_dmi_table[] = {
42820+static const struct dmi_system_id __initconst pm_dmi_table[] = {
42821 {
42822 enable_cap_knobs, "IBM Active Energy Manager",
42823 {
42824diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
42825index 0af63da..05a183a 100644
42826--- a/drivers/hwmon/applesmc.c
42827+++ b/drivers/hwmon/applesmc.c
42828@@ -1105,7 +1105,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
42829 {
42830 struct applesmc_node_group *grp;
42831 struct applesmc_dev_attr *node;
42832- struct attribute *attr;
42833+ attribute_no_const *attr;
42834 int ret, i;
42835
42836 for (grp = groups; grp->format; grp++) {
42837diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
42838index cccef87..06ce8ec 100644
42839--- a/drivers/hwmon/asus_atk0110.c
42840+++ b/drivers/hwmon/asus_atk0110.c
42841@@ -147,10 +147,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
42842 struct atk_sensor_data {
42843 struct list_head list;
42844 struct atk_data *data;
42845- struct device_attribute label_attr;
42846- struct device_attribute input_attr;
42847- struct device_attribute limit1_attr;
42848- struct device_attribute limit2_attr;
42849+ device_attribute_no_const label_attr;
42850+ device_attribute_no_const input_attr;
42851+ device_attribute_no_const limit1_attr;
42852+ device_attribute_no_const limit2_attr;
42853 char label_attr_name[ATTR_NAME_SIZE];
42854 char input_attr_name[ATTR_NAME_SIZE];
42855 char limit1_attr_name[ATTR_NAME_SIZE];
42856@@ -270,7 +270,7 @@ static ssize_t atk_name_show(struct device *dev,
42857 static struct device_attribute atk_name_attr =
42858 __ATTR(name, 0444, atk_name_show, NULL);
42859
42860-static void atk_init_attribute(struct device_attribute *attr, char *name,
42861+static void atk_init_attribute(device_attribute_no_const *attr, char *name,
42862 sysfs_show_func show)
42863 {
42864 sysfs_attr_init(&attr->attr);
42865diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
42866index 5b7fec8..05c957a 100644
42867--- a/drivers/hwmon/coretemp.c
42868+++ b/drivers/hwmon/coretemp.c
42869@@ -783,7 +783,7 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
42870 return NOTIFY_OK;
42871 }
42872
42873-static struct notifier_block coretemp_cpu_notifier __refdata = {
42874+static struct notifier_block coretemp_cpu_notifier = {
42875 .notifier_call = coretemp_cpu_callback,
42876 };
42877
42878diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
42879index 7a8a6fb..015c1fd 100644
42880--- a/drivers/hwmon/ibmaem.c
42881+++ b/drivers/hwmon/ibmaem.c
42882@@ -924,7 +924,7 @@ static int aem_register_sensors(struct aem_data *data,
42883 struct aem_rw_sensor_template *rw)
42884 {
42885 struct device *dev = &data->pdev->dev;
42886- struct sensor_device_attribute *sensors = data->sensors;
42887+ sensor_device_attribute_no_const *sensors = data->sensors;
42888 int err;
42889
42890 /* Set up read-only sensors */
42891diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
42892index 17ae2eb..21b71dd 100644
42893--- a/drivers/hwmon/iio_hwmon.c
42894+++ b/drivers/hwmon/iio_hwmon.c
42895@@ -61,7 +61,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
42896 {
42897 struct device *dev = &pdev->dev;
42898 struct iio_hwmon_state *st;
42899- struct sensor_device_attribute *a;
42900+ sensor_device_attribute_no_const *a;
42901 int ret, i;
42902 int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1;
42903 enum iio_chan_type type;
42904diff --git a/drivers/hwmon/nct6683.c b/drivers/hwmon/nct6683.c
42905index f3830db..9f4d6d5 100644
42906--- a/drivers/hwmon/nct6683.c
42907+++ b/drivers/hwmon/nct6683.c
42908@@ -397,11 +397,11 @@ static struct attribute_group *
42909 nct6683_create_attr_group(struct device *dev, struct sensor_template_group *tg,
42910 int repeat)
42911 {
42912- struct sensor_device_attribute_2 *a2;
42913- struct sensor_device_attribute *a;
42914+ sensor_device_attribute_2_no_const *a2;
42915+ sensor_device_attribute_no_const *a;
42916 struct sensor_device_template **t;
42917 struct sensor_device_attr_u *su;
42918- struct attribute_group *group;
42919+ attribute_group_no_const *group;
42920 struct attribute **attrs;
42921 int i, j, count;
42922
42923diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
42924index 1be4117..88ae1e1 100644
42925--- a/drivers/hwmon/nct6775.c
42926+++ b/drivers/hwmon/nct6775.c
42927@@ -952,10 +952,10 @@ static struct attribute_group *
42928 nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
42929 int repeat)
42930 {
42931- struct attribute_group *group;
42932+ attribute_group_no_const *group;
42933 struct sensor_device_attr_u *su;
42934- struct sensor_device_attribute *a;
42935- struct sensor_device_attribute_2 *a2;
42936+ sensor_device_attribute_no_const *a;
42937+ sensor_device_attribute_2_no_const *a2;
42938 struct attribute **attrs;
42939 struct sensor_device_template **t;
42940 int i, count;
42941diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
42942index f2e47c7..45d7941 100644
42943--- a/drivers/hwmon/pmbus/pmbus_core.c
42944+++ b/drivers/hwmon/pmbus/pmbus_core.c
42945@@ -816,7 +816,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
42946 return 0;
42947 }
42948
42949-static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
42950+static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
42951 const char *name,
42952 umode_t mode,
42953 ssize_t (*show)(struct device *dev,
42954@@ -833,7 +833,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
42955 dev_attr->store = store;
42956 }
42957
42958-static void pmbus_attr_init(struct sensor_device_attribute *a,
42959+static void pmbus_attr_init(sensor_device_attribute_no_const *a,
42960 const char *name,
42961 umode_t mode,
42962 ssize_t (*show)(struct device *dev,
42963@@ -855,7 +855,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
42964 u16 reg, u8 mask)
42965 {
42966 struct pmbus_boolean *boolean;
42967- struct sensor_device_attribute *a;
42968+ sensor_device_attribute_no_const *a;
42969
42970 boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
42971 if (!boolean)
42972@@ -880,7 +880,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
42973 bool update, bool readonly)
42974 {
42975 struct pmbus_sensor *sensor;
42976- struct device_attribute *a;
42977+ device_attribute_no_const *a;
42978
42979 sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
42980 if (!sensor)
42981@@ -911,7 +911,7 @@ static int pmbus_add_label(struct pmbus_data *data,
42982 const char *lstring, int index)
42983 {
42984 struct pmbus_label *label;
42985- struct device_attribute *a;
42986+ device_attribute_no_const *a;
42987
42988 label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
42989 if (!label)
42990diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
42991index d4f0935..7420593 100644
42992--- a/drivers/hwmon/sht15.c
42993+++ b/drivers/hwmon/sht15.c
42994@@ -169,7 +169,7 @@ struct sht15_data {
42995 int supply_uv;
42996 bool supply_uv_valid;
42997 struct work_struct update_supply_work;
42998- atomic_t interrupt_handled;
42999+ atomic_unchecked_t interrupt_handled;
43000 };
43001
43002 /**
43003@@ -542,13 +542,13 @@ static int sht15_measurement(struct sht15_data *data,
43004 ret = gpio_direction_input(data->pdata->gpio_data);
43005 if (ret)
43006 return ret;
43007- atomic_set(&data->interrupt_handled, 0);
43008+ atomic_set_unchecked(&data->interrupt_handled, 0);
43009
43010 enable_irq(gpio_to_irq(data->pdata->gpio_data));
43011 if (gpio_get_value(data->pdata->gpio_data) == 0) {
43012 disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
43013 /* Only relevant if the interrupt hasn't occurred. */
43014- if (!atomic_read(&data->interrupt_handled))
43015+ if (!atomic_read_unchecked(&data->interrupt_handled))
43016 schedule_work(&data->read_work);
43017 }
43018 ret = wait_event_timeout(data->wait_queue,
43019@@ -820,7 +820,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
43020
43021 /* First disable the interrupt */
43022 disable_irq_nosync(irq);
43023- atomic_inc(&data->interrupt_handled);
43024+ atomic_inc_unchecked(&data->interrupt_handled);
43025 /* Then schedule a reading work struct */
43026 if (data->state != SHT15_READING_NOTHING)
43027 schedule_work(&data->read_work);
43028@@ -842,11 +842,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
43029 * If not, then start the interrupt again - care here as could
43030 * have gone low in meantime so verify it hasn't!
43031 */
43032- atomic_set(&data->interrupt_handled, 0);
43033+ atomic_set_unchecked(&data->interrupt_handled, 0);
43034 enable_irq(gpio_to_irq(data->pdata->gpio_data));
43035 /* If still not occurred or another handler was scheduled */
43036 if (gpio_get_value(data->pdata->gpio_data)
43037- || atomic_read(&data->interrupt_handled))
43038+ || atomic_read_unchecked(&data->interrupt_handled))
43039 return;
43040 }
43041
43042diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
43043index ac91c07..8e69663 100644
43044--- a/drivers/hwmon/via-cputemp.c
43045+++ b/drivers/hwmon/via-cputemp.c
43046@@ -295,7 +295,7 @@ static int via_cputemp_cpu_callback(struct notifier_block *nfb,
43047 return NOTIFY_OK;
43048 }
43049
43050-static struct notifier_block via_cputemp_cpu_notifier __refdata = {
43051+static struct notifier_block via_cputemp_cpu_notifier = {
43052 .notifier_call = via_cputemp_cpu_callback,
43053 };
43054
43055diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
43056index 65e3240..e6c511d 100644
43057--- a/drivers/i2c/busses/i2c-amd756-s4882.c
43058+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
43059@@ -39,7 +39,7 @@
43060 extern struct i2c_adapter amd756_smbus;
43061
43062 static struct i2c_adapter *s4882_adapter;
43063-static struct i2c_algorithm *s4882_algo;
43064+static i2c_algorithm_no_const *s4882_algo;
43065
43066 /* Wrapper access functions for multiplexed SMBus */
43067 static DEFINE_MUTEX(amd756_lock);
43068diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
43069index b19a310..d6eece0 100644
43070--- a/drivers/i2c/busses/i2c-diolan-u2c.c
43071+++ b/drivers/i2c/busses/i2c-diolan-u2c.c
43072@@ -98,7 +98,7 @@ MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz");
43073 /* usb layer */
43074
43075 /* Send command to device, and get response. */
43076-static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
43077+static int __intentional_overflow(-1) diolan_usb_transfer(struct i2c_diolan_u2c *dev)
43078 {
43079 int ret = 0;
43080 int actual;
43081diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
43082index 88eda09..cf40434 100644
43083--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
43084+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
43085@@ -37,7 +37,7 @@
43086 extern struct i2c_adapter *nforce2_smbus;
43087
43088 static struct i2c_adapter *s4985_adapter;
43089-static struct i2c_algorithm *s4985_algo;
43090+static i2c_algorithm_no_const *s4985_algo;
43091
43092 /* Wrapper access functions for multiplexed SMBus */
43093 static DEFINE_MUTEX(nforce2_lock);
43094diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
43095index 71c7a39..71dd3e0 100644
43096--- a/drivers/i2c/i2c-dev.c
43097+++ b/drivers/i2c/i2c-dev.c
43098@@ -272,7 +272,7 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
43099 break;
43100 }
43101
43102- data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
43103+ data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
43104 rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
43105 if (IS_ERR(rdwr_pa[i].buf)) {
43106 res = PTR_ERR(rdwr_pa[i].buf);
43107diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
43108index 0b510ba..4fbb5085 100644
43109--- a/drivers/ide/ide-cd.c
43110+++ b/drivers/ide/ide-cd.c
43111@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
43112 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
43113 if ((unsigned long)buf & alignment
43114 || blk_rq_bytes(rq) & q->dma_pad_mask
43115- || object_is_on_stack(buf))
43116+ || object_starts_on_stack(buf))
43117 drive->dma = 0;
43118 }
43119 }
43120diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
43121index 4df97f6..c751151 100644
43122--- a/drivers/iio/industrialio-core.c
43123+++ b/drivers/iio/industrialio-core.c
43124@@ -570,7 +570,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
43125 }
43126
43127 static
43128-int __iio_device_attr_init(struct device_attribute *dev_attr,
43129+int __iio_device_attr_init(device_attribute_no_const *dev_attr,
43130 const char *postfix,
43131 struct iio_chan_spec const *chan,
43132 ssize_t (*readfunc)(struct device *dev,
43133diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
43134index e28a494..f7c2671 100644
43135--- a/drivers/infiniband/core/cm.c
43136+++ b/drivers/infiniband/core/cm.c
43137@@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
43138
43139 struct cm_counter_group {
43140 struct kobject obj;
43141- atomic_long_t counter[CM_ATTR_COUNT];
43142+ atomic_long_unchecked_t counter[CM_ATTR_COUNT];
43143 };
43144
43145 struct cm_counter_attribute {
43146@@ -1398,7 +1398,7 @@ static void cm_dup_req_handler(struct cm_work *work,
43147 struct ib_mad_send_buf *msg = NULL;
43148 int ret;
43149
43150- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43151+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43152 counter[CM_REQ_COUNTER]);
43153
43154 /* Quick state check to discard duplicate REQs. */
43155@@ -1785,7 +1785,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
43156 if (!cm_id_priv)
43157 return;
43158
43159- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43160+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43161 counter[CM_REP_COUNTER]);
43162 ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
43163 if (ret)
43164@@ -1952,7 +1952,7 @@ static int cm_rtu_handler(struct cm_work *work)
43165 if (cm_id_priv->id.state != IB_CM_REP_SENT &&
43166 cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
43167 spin_unlock_irq(&cm_id_priv->lock);
43168- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43169+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43170 counter[CM_RTU_COUNTER]);
43171 goto out;
43172 }
43173@@ -2135,7 +2135,7 @@ static int cm_dreq_handler(struct cm_work *work)
43174 cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
43175 dreq_msg->local_comm_id);
43176 if (!cm_id_priv) {
43177- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43178+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43179 counter[CM_DREQ_COUNTER]);
43180 cm_issue_drep(work->port, work->mad_recv_wc);
43181 return -EINVAL;
43182@@ -2160,7 +2160,7 @@ static int cm_dreq_handler(struct cm_work *work)
43183 case IB_CM_MRA_REP_RCVD:
43184 break;
43185 case IB_CM_TIMEWAIT:
43186- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43187+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43188 counter[CM_DREQ_COUNTER]);
43189 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
43190 goto unlock;
43191@@ -2174,7 +2174,7 @@ static int cm_dreq_handler(struct cm_work *work)
43192 cm_free_msg(msg);
43193 goto deref;
43194 case IB_CM_DREQ_RCVD:
43195- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43196+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43197 counter[CM_DREQ_COUNTER]);
43198 goto unlock;
43199 default:
43200@@ -2541,7 +2541,7 @@ static int cm_mra_handler(struct cm_work *work)
43201 ib_modify_mad(cm_id_priv->av.port->mad_agent,
43202 cm_id_priv->msg, timeout)) {
43203 if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
43204- atomic_long_inc(&work->port->
43205+ atomic_long_inc_unchecked(&work->port->
43206 counter_group[CM_RECV_DUPLICATES].
43207 counter[CM_MRA_COUNTER]);
43208 goto out;
43209@@ -2550,7 +2550,7 @@ static int cm_mra_handler(struct cm_work *work)
43210 break;
43211 case IB_CM_MRA_REQ_RCVD:
43212 case IB_CM_MRA_REP_RCVD:
43213- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43214+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43215 counter[CM_MRA_COUNTER]);
43216 /* fall through */
43217 default:
43218@@ -2712,7 +2712,7 @@ static int cm_lap_handler(struct cm_work *work)
43219 case IB_CM_LAP_IDLE:
43220 break;
43221 case IB_CM_MRA_LAP_SENT:
43222- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43223+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43224 counter[CM_LAP_COUNTER]);
43225 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
43226 goto unlock;
43227@@ -2728,7 +2728,7 @@ static int cm_lap_handler(struct cm_work *work)
43228 cm_free_msg(msg);
43229 goto deref;
43230 case IB_CM_LAP_RCVD:
43231- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43232+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43233 counter[CM_LAP_COUNTER]);
43234 goto unlock;
43235 default:
43236@@ -3012,7 +3012,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
43237 cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
43238 if (cur_cm_id_priv) {
43239 spin_unlock_irq(&cm.lock);
43240- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43241+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43242 counter[CM_SIDR_REQ_COUNTER]);
43243 goto out; /* Duplicate message. */
43244 }
43245@@ -3224,10 +3224,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
43246 if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
43247 msg->retries = 1;
43248
43249- atomic_long_add(1 + msg->retries,
43250+ atomic_long_add_unchecked(1 + msg->retries,
43251 &port->counter_group[CM_XMIT].counter[attr_index]);
43252 if (msg->retries)
43253- atomic_long_add(msg->retries,
43254+ atomic_long_add_unchecked(msg->retries,
43255 &port->counter_group[CM_XMIT_RETRIES].
43256 counter[attr_index]);
43257
43258@@ -3437,7 +3437,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
43259 }
43260
43261 attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
43262- atomic_long_inc(&port->counter_group[CM_RECV].
43263+ atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
43264 counter[attr_id - CM_ATTR_ID_OFFSET]);
43265
43266 work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
43267@@ -3668,7 +3668,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
43268 cm_attr = container_of(attr, struct cm_counter_attribute, attr);
43269
43270 return sprintf(buf, "%ld\n",
43271- atomic_long_read(&group->counter[cm_attr->index]));
43272+ atomic_long_read_unchecked(&group->counter[cm_attr->index]));
43273 }
43274
43275 static const struct sysfs_ops cm_counter_ops = {
43276diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
43277index 9f5ad7c..588cd84 100644
43278--- a/drivers/infiniband/core/fmr_pool.c
43279+++ b/drivers/infiniband/core/fmr_pool.c
43280@@ -98,8 +98,8 @@ struct ib_fmr_pool {
43281
43282 struct task_struct *thread;
43283
43284- atomic_t req_ser;
43285- atomic_t flush_ser;
43286+ atomic_unchecked_t req_ser;
43287+ atomic_unchecked_t flush_ser;
43288
43289 wait_queue_head_t force_wait;
43290 };
43291@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
43292 struct ib_fmr_pool *pool = pool_ptr;
43293
43294 do {
43295- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
43296+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
43297 ib_fmr_batch_release(pool);
43298
43299- atomic_inc(&pool->flush_ser);
43300+ atomic_inc_unchecked(&pool->flush_ser);
43301 wake_up_interruptible(&pool->force_wait);
43302
43303 if (pool->flush_function)
43304@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
43305 }
43306
43307 set_current_state(TASK_INTERRUPTIBLE);
43308- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
43309+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
43310 !kthread_should_stop())
43311 schedule();
43312 __set_current_state(TASK_RUNNING);
43313@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
43314 pool->dirty_watermark = params->dirty_watermark;
43315 pool->dirty_len = 0;
43316 spin_lock_init(&pool->pool_lock);
43317- atomic_set(&pool->req_ser, 0);
43318- atomic_set(&pool->flush_ser, 0);
43319+ atomic_set_unchecked(&pool->req_ser, 0);
43320+ atomic_set_unchecked(&pool->flush_ser, 0);
43321 init_waitqueue_head(&pool->force_wait);
43322
43323 pool->thread = kthread_run(ib_fmr_cleanup_thread,
43324@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
43325 }
43326 spin_unlock_irq(&pool->pool_lock);
43327
43328- serial = atomic_inc_return(&pool->req_ser);
43329+ serial = atomic_inc_return_unchecked(&pool->req_ser);
43330 wake_up_process(pool->thread);
43331
43332 if (wait_event_interruptible(pool->force_wait,
43333- atomic_read(&pool->flush_ser) - serial >= 0))
43334+ atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
43335 return -EINTR;
43336
43337 return 0;
43338@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
43339 } else {
43340 list_add_tail(&fmr->list, &pool->dirty_list);
43341 if (++pool->dirty_len >= pool->dirty_watermark) {
43342- atomic_inc(&pool->req_ser);
43343+ atomic_inc_unchecked(&pool->req_ser);
43344 wake_up_process(pool->thread);
43345 }
43346 }
43347diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
43348index a9f0489..27a161b 100644
43349--- a/drivers/infiniband/core/uverbs_cmd.c
43350+++ b/drivers/infiniband/core/uverbs_cmd.c
43351@@ -951,6 +951,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
43352 if (copy_from_user(&cmd, buf, sizeof cmd))
43353 return -EFAULT;
43354
43355+ if (!access_ok_noprefault(VERIFY_READ, cmd.start, cmd.length))
43356+ return -EFAULT;
43357+
43358 INIT_UDATA(&udata, buf + sizeof cmd,
43359 (unsigned long) cmd.response + sizeof resp,
43360 in_len - sizeof cmd, out_len - sizeof resp);
43361diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
43362index 6791fd1..78bdcdf 100644
43363--- a/drivers/infiniband/hw/cxgb4/mem.c
43364+++ b/drivers/infiniband/hw/cxgb4/mem.c
43365@@ -256,7 +256,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
43366 int err;
43367 struct fw_ri_tpte tpt;
43368 u32 stag_idx;
43369- static atomic_t key;
43370+ static atomic_unchecked_t key;
43371
43372 if (c4iw_fatal_error(rdev))
43373 return -EIO;
43374@@ -277,7 +277,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
43375 if (rdev->stats.stag.cur > rdev->stats.stag.max)
43376 rdev->stats.stag.max = rdev->stats.stag.cur;
43377 mutex_unlock(&rdev->stats.lock);
43378- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
43379+ *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
43380 }
43381 PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
43382 __func__, stag_state, type, pdid, stag_idx);
43383diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
43384index 79b3dbc..96e5fcc 100644
43385--- a/drivers/infiniband/hw/ipath/ipath_rc.c
43386+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
43387@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
43388 struct ib_atomic_eth *ateth;
43389 struct ipath_ack_entry *e;
43390 u64 vaddr;
43391- atomic64_t *maddr;
43392+ atomic64_unchecked_t *maddr;
43393 u64 sdata;
43394 u32 rkey;
43395 u8 next;
43396@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
43397 IB_ACCESS_REMOTE_ATOMIC)))
43398 goto nack_acc_unlck;
43399 /* Perform atomic OP and save result. */
43400- maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
43401+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
43402 sdata = be64_to_cpu(ateth->swap_data);
43403 e = &qp->s_ack_queue[qp->r_head_ack_queue];
43404 e->atomic_data = (opcode == OP(FETCH_ADD)) ?
43405- (u64) atomic64_add_return(sdata, maddr) - sdata :
43406+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
43407 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
43408 be64_to_cpu(ateth->compare_data),
43409 sdata);
43410diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
43411index 1f95bba..9530f87 100644
43412--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
43413+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
43414@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
43415 unsigned long flags;
43416 struct ib_wc wc;
43417 u64 sdata;
43418- atomic64_t *maddr;
43419+ atomic64_unchecked_t *maddr;
43420 enum ib_wc_status send_status;
43421
43422 /*
43423@@ -382,11 +382,11 @@ again:
43424 IB_ACCESS_REMOTE_ATOMIC)))
43425 goto acc_err;
43426 /* Perform atomic OP and save result. */
43427- maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
43428+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
43429 sdata = wqe->wr.wr.atomic.compare_add;
43430 *(u64 *) sqp->s_sge.sge.vaddr =
43431 (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
43432- (u64) atomic64_add_return(sdata, maddr) - sdata :
43433+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
43434 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
43435 sdata, wqe->wr.wr.atomic.swap);
43436 goto send_comp;
43437diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
43438index 5904026..f1c30e5 100644
43439--- a/drivers/infiniband/hw/mlx4/mad.c
43440+++ b/drivers/infiniband/hw/mlx4/mad.c
43441@@ -106,7 +106,7 @@ __be64 mlx4_ib_gen_node_guid(void)
43442
43443 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
43444 {
43445- return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
43446+ return cpu_to_be64(atomic_inc_return_unchecked(&ctx->tid)) |
43447 cpu_to_be64(0xff00000000000000LL);
43448 }
43449
43450diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
43451index ed327e6..ca1739e0 100644
43452--- a/drivers/infiniband/hw/mlx4/mcg.c
43453+++ b/drivers/infiniband/hw/mlx4/mcg.c
43454@@ -1041,7 +1041,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
43455 {
43456 char name[20];
43457
43458- atomic_set(&ctx->tid, 0);
43459+ atomic_set_unchecked(&ctx->tid, 0);
43460 sprintf(name, "mlx4_ib_mcg%d", ctx->port);
43461 ctx->mcg_wq = create_singlethread_workqueue(name);
43462 if (!ctx->mcg_wq)
43463diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
43464index f829fd9..1a8d436 100644
43465--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
43466+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
43467@@ -439,7 +439,7 @@ struct mlx4_ib_demux_ctx {
43468 struct list_head mcg_mgid0_list;
43469 struct workqueue_struct *mcg_wq;
43470 struct mlx4_ib_demux_pv_ctx **tun;
43471- atomic_t tid;
43472+ atomic_unchecked_t tid;
43473 int flushing; /* flushing the work queue */
43474 };
43475
43476diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
43477index 9d3e5c1..6f166df 100644
43478--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
43479+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
43480@@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
43481 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
43482 }
43483
43484-int mthca_QUERY_FW(struct mthca_dev *dev)
43485+int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
43486 {
43487 struct mthca_mailbox *mailbox;
43488 u32 *outbox;
43489@@ -1612,7 +1612,7 @@ int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43490 CMD_TIME_CLASS_B);
43491 }
43492
43493-int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43494+int __intentional_overflow(-1) mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43495 int num_mtt)
43496 {
43497 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
43498@@ -1634,7 +1634,7 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
43499 0, CMD_MAP_EQ, CMD_TIME_CLASS_B);
43500 }
43501
43502-int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43503+int __intentional_overflow(-1) mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43504 int eq_num)
43505 {
43506 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
43507@@ -1857,7 +1857,7 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn)
43508 CMD_TIME_CLASS_B);
43509 }
43510
43511-int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
43512+int __intentional_overflow(-1) mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
43513 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
43514 void *in_mad, void *response_mad)
43515 {
43516diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
43517index ded76c1..0cf0a08 100644
43518--- a/drivers/infiniband/hw/mthca/mthca_main.c
43519+++ b/drivers/infiniband/hw/mthca/mthca_main.c
43520@@ -692,7 +692,7 @@ err_close:
43521 return err;
43522 }
43523
43524-static int mthca_setup_hca(struct mthca_dev *dev)
43525+static int __intentional_overflow(-1) mthca_setup_hca(struct mthca_dev *dev)
43526 {
43527 int err;
43528
43529diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
43530index ed9a989..6aa5dc2 100644
43531--- a/drivers/infiniband/hw/mthca/mthca_mr.c
43532+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
43533@@ -81,7 +81,7 @@ struct mthca_mpt_entry {
43534 * through the bitmaps)
43535 */
43536
43537-static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
43538+static u32 __intentional_overflow(-1) mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
43539 {
43540 int o;
43541 int m;
43542@@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
43543 return key;
43544 }
43545
43546-int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
43547+int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
43548 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
43549 {
43550 struct mthca_mailbox *mailbox;
43551@@ -516,7 +516,7 @@ int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
43552 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
43553 }
43554
43555-int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
43556+int __intentional_overflow(-1) mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
43557 u64 *buffer_list, int buffer_size_shift,
43558 int list_len, u64 iova, u64 total_size,
43559 u32 access, struct mthca_mr *mr)
43560diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
43561index 415f8e1..e34214e 100644
43562--- a/drivers/infiniband/hw/mthca/mthca_provider.c
43563+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
43564@@ -764,7 +764,7 @@ unlock:
43565 return 0;
43566 }
43567
43568-static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
43569+static int __intentional_overflow(-1) mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
43570 {
43571 struct mthca_dev *dev = to_mdev(ibcq->device);
43572 struct mthca_cq *cq = to_mcq(ibcq);
43573diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
43574index 3b2a6dc..bce26ff 100644
43575--- a/drivers/infiniband/hw/nes/nes.c
43576+++ b/drivers/infiniband/hw/nes/nes.c
43577@@ -97,7 +97,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
43578 LIST_HEAD(nes_adapter_list);
43579 static LIST_HEAD(nes_dev_list);
43580
43581-atomic_t qps_destroyed;
43582+atomic_unchecked_t qps_destroyed;
43583
43584 static unsigned int ee_flsh_adapter;
43585 static unsigned int sysfs_nonidx_addr;
43586@@ -278,7 +278,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
43587 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
43588 struct nes_adapter *nesadapter = nesdev->nesadapter;
43589
43590- atomic_inc(&qps_destroyed);
43591+ atomic_inc_unchecked(&qps_destroyed);
43592
43593 /* Free the control structures */
43594
43595diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
43596index bd9d132..70d84f4 100644
43597--- a/drivers/infiniband/hw/nes/nes.h
43598+++ b/drivers/infiniband/hw/nes/nes.h
43599@@ -180,17 +180,17 @@ extern unsigned int nes_debug_level;
43600 extern unsigned int wqm_quanta;
43601 extern struct list_head nes_adapter_list;
43602
43603-extern atomic_t cm_connects;
43604-extern atomic_t cm_accepts;
43605-extern atomic_t cm_disconnects;
43606-extern atomic_t cm_closes;
43607-extern atomic_t cm_connecteds;
43608-extern atomic_t cm_connect_reqs;
43609-extern atomic_t cm_rejects;
43610-extern atomic_t mod_qp_timouts;
43611-extern atomic_t qps_created;
43612-extern atomic_t qps_destroyed;
43613-extern atomic_t sw_qps_destroyed;
43614+extern atomic_unchecked_t cm_connects;
43615+extern atomic_unchecked_t cm_accepts;
43616+extern atomic_unchecked_t cm_disconnects;
43617+extern atomic_unchecked_t cm_closes;
43618+extern atomic_unchecked_t cm_connecteds;
43619+extern atomic_unchecked_t cm_connect_reqs;
43620+extern atomic_unchecked_t cm_rejects;
43621+extern atomic_unchecked_t mod_qp_timouts;
43622+extern atomic_unchecked_t qps_created;
43623+extern atomic_unchecked_t qps_destroyed;
43624+extern atomic_unchecked_t sw_qps_destroyed;
43625 extern u32 mh_detected;
43626 extern u32 mh_pauses_sent;
43627 extern u32 cm_packets_sent;
43628@@ -199,16 +199,16 @@ extern u32 cm_packets_created;
43629 extern u32 cm_packets_received;
43630 extern u32 cm_packets_dropped;
43631 extern u32 cm_packets_retrans;
43632-extern atomic_t cm_listens_created;
43633-extern atomic_t cm_listens_destroyed;
43634+extern atomic_unchecked_t cm_listens_created;
43635+extern atomic_unchecked_t cm_listens_destroyed;
43636 extern u32 cm_backlog_drops;
43637-extern atomic_t cm_loopbacks;
43638-extern atomic_t cm_nodes_created;
43639-extern atomic_t cm_nodes_destroyed;
43640-extern atomic_t cm_accel_dropped_pkts;
43641-extern atomic_t cm_resets_recvd;
43642-extern atomic_t pau_qps_created;
43643-extern atomic_t pau_qps_destroyed;
43644+extern atomic_unchecked_t cm_loopbacks;
43645+extern atomic_unchecked_t cm_nodes_created;
43646+extern atomic_unchecked_t cm_nodes_destroyed;
43647+extern atomic_unchecked_t cm_accel_dropped_pkts;
43648+extern atomic_unchecked_t cm_resets_recvd;
43649+extern atomic_unchecked_t pau_qps_created;
43650+extern atomic_unchecked_t pau_qps_destroyed;
43651
43652 extern u32 int_mod_timer_init;
43653 extern u32 int_mod_cq_depth_256;
43654diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
43655index 6f09a72..cf4399d 100644
43656--- a/drivers/infiniband/hw/nes/nes_cm.c
43657+++ b/drivers/infiniband/hw/nes/nes_cm.c
43658@@ -69,14 +69,14 @@ u32 cm_packets_dropped;
43659 u32 cm_packets_retrans;
43660 u32 cm_packets_created;
43661 u32 cm_packets_received;
43662-atomic_t cm_listens_created;
43663-atomic_t cm_listens_destroyed;
43664+atomic_unchecked_t cm_listens_created;
43665+atomic_unchecked_t cm_listens_destroyed;
43666 u32 cm_backlog_drops;
43667-atomic_t cm_loopbacks;
43668-atomic_t cm_nodes_created;
43669-atomic_t cm_nodes_destroyed;
43670-atomic_t cm_accel_dropped_pkts;
43671-atomic_t cm_resets_recvd;
43672+atomic_unchecked_t cm_loopbacks;
43673+atomic_unchecked_t cm_nodes_created;
43674+atomic_unchecked_t cm_nodes_destroyed;
43675+atomic_unchecked_t cm_accel_dropped_pkts;
43676+atomic_unchecked_t cm_resets_recvd;
43677
43678 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
43679 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
43680@@ -135,28 +135,28 @@ static void record_ird_ord(struct nes_cm_node *, u16, u16);
43681 /* instance of function pointers for client API */
43682 /* set address of this instance to cm_core->cm_ops at cm_core alloc */
43683 static struct nes_cm_ops nes_cm_api = {
43684- mini_cm_accelerated,
43685- mini_cm_listen,
43686- mini_cm_del_listen,
43687- mini_cm_connect,
43688- mini_cm_close,
43689- mini_cm_accept,
43690- mini_cm_reject,
43691- mini_cm_recv_pkt,
43692- mini_cm_dealloc_core,
43693- mini_cm_get,
43694- mini_cm_set
43695+ .accelerated = mini_cm_accelerated,
43696+ .listen = mini_cm_listen,
43697+ .stop_listener = mini_cm_del_listen,
43698+ .connect = mini_cm_connect,
43699+ .close = mini_cm_close,
43700+ .accept = mini_cm_accept,
43701+ .reject = mini_cm_reject,
43702+ .recv_pkt = mini_cm_recv_pkt,
43703+ .destroy_cm_core = mini_cm_dealloc_core,
43704+ .get = mini_cm_get,
43705+ .set = mini_cm_set
43706 };
43707
43708 static struct nes_cm_core *g_cm_core;
43709
43710-atomic_t cm_connects;
43711-atomic_t cm_accepts;
43712-atomic_t cm_disconnects;
43713-atomic_t cm_closes;
43714-atomic_t cm_connecteds;
43715-atomic_t cm_connect_reqs;
43716-atomic_t cm_rejects;
43717+atomic_unchecked_t cm_connects;
43718+atomic_unchecked_t cm_accepts;
43719+atomic_unchecked_t cm_disconnects;
43720+atomic_unchecked_t cm_closes;
43721+atomic_unchecked_t cm_connecteds;
43722+atomic_unchecked_t cm_connect_reqs;
43723+atomic_unchecked_t cm_rejects;
43724
43725 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
43726 {
43727@@ -1436,7 +1436,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
43728 kfree(listener);
43729 listener = NULL;
43730 ret = 0;
43731- atomic_inc(&cm_listens_destroyed);
43732+ atomic_inc_unchecked(&cm_listens_destroyed);
43733 } else {
43734 spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
43735 }
43736@@ -1637,7 +1637,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
43737 cm_node->rem_mac);
43738
43739 add_hte_node(cm_core, cm_node);
43740- atomic_inc(&cm_nodes_created);
43741+ atomic_inc_unchecked(&cm_nodes_created);
43742
43743 return cm_node;
43744 }
43745@@ -1698,7 +1698,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
43746 }
43747
43748 atomic_dec(&cm_core->node_cnt);
43749- atomic_inc(&cm_nodes_destroyed);
43750+ atomic_inc_unchecked(&cm_nodes_destroyed);
43751 nesqp = cm_node->nesqp;
43752 if (nesqp) {
43753 nesqp->cm_node = NULL;
43754@@ -1762,7 +1762,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
43755
43756 static void drop_packet(struct sk_buff *skb)
43757 {
43758- atomic_inc(&cm_accel_dropped_pkts);
43759+ atomic_inc_unchecked(&cm_accel_dropped_pkts);
43760 dev_kfree_skb_any(skb);
43761 }
43762
43763@@ -1825,7 +1825,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
43764 {
43765
43766 int reset = 0; /* whether to send reset in case of err.. */
43767- atomic_inc(&cm_resets_recvd);
43768+ atomic_inc_unchecked(&cm_resets_recvd);
43769 nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
43770 " refcnt=%d\n", cm_node, cm_node->state,
43771 atomic_read(&cm_node->ref_count));
43772@@ -2492,7 +2492,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
43773 rem_ref_cm_node(cm_node->cm_core, cm_node);
43774 return NULL;
43775 }
43776- atomic_inc(&cm_loopbacks);
43777+ atomic_inc_unchecked(&cm_loopbacks);
43778 loopbackremotenode->loopbackpartner = cm_node;
43779 loopbackremotenode->tcp_cntxt.rcv_wscale =
43780 NES_CM_DEFAULT_RCV_WND_SCALE;
43781@@ -2773,7 +2773,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
43782 nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
43783 else {
43784 rem_ref_cm_node(cm_core, cm_node);
43785- atomic_inc(&cm_accel_dropped_pkts);
43786+ atomic_inc_unchecked(&cm_accel_dropped_pkts);
43787 dev_kfree_skb_any(skb);
43788 }
43789 break;
43790@@ -3081,7 +3081,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
43791
43792 if ((cm_id) && (cm_id->event_handler)) {
43793 if (issue_disconn) {
43794- atomic_inc(&cm_disconnects);
43795+ atomic_inc_unchecked(&cm_disconnects);
43796 cm_event.event = IW_CM_EVENT_DISCONNECT;
43797 cm_event.status = disconn_status;
43798 cm_event.local_addr = cm_id->local_addr;
43799@@ -3103,7 +3103,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
43800 }
43801
43802 if (issue_close) {
43803- atomic_inc(&cm_closes);
43804+ atomic_inc_unchecked(&cm_closes);
43805 nes_disconnect(nesqp, 1);
43806
43807 cm_id->provider_data = nesqp;
43808@@ -3241,7 +3241,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
43809
43810 nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
43811 nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
43812- atomic_inc(&cm_accepts);
43813+ atomic_inc_unchecked(&cm_accepts);
43814
43815 nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
43816 netdev_refcnt_read(nesvnic->netdev));
43817@@ -3439,7 +3439,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
43818 struct nes_cm_core *cm_core;
43819 u8 *start_buff;
43820
43821- atomic_inc(&cm_rejects);
43822+ atomic_inc_unchecked(&cm_rejects);
43823 cm_node = (struct nes_cm_node *)cm_id->provider_data;
43824 loopback = cm_node->loopbackpartner;
43825 cm_core = cm_node->cm_core;
43826@@ -3504,7 +3504,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
43827 ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
43828 ntohs(laddr->sin_port));
43829
43830- atomic_inc(&cm_connects);
43831+ atomic_inc_unchecked(&cm_connects);
43832 nesqp->active_conn = 1;
43833
43834 /* cache the cm_id in the qp */
43835@@ -3649,7 +3649,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
43836 g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
43837 return err;
43838 }
43839- atomic_inc(&cm_listens_created);
43840+ atomic_inc_unchecked(&cm_listens_created);
43841 }
43842
43843 cm_id->add_ref(cm_id);
43844@@ -3756,7 +3756,7 @@ static void cm_event_connected(struct nes_cm_event *event)
43845
43846 if (nesqp->destroyed)
43847 return;
43848- atomic_inc(&cm_connecteds);
43849+ atomic_inc_unchecked(&cm_connecteds);
43850 nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
43851 " local port 0x%04X. jiffies = %lu.\n",
43852 nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
43853@@ -3941,7 +3941,7 @@ static void cm_event_reset(struct nes_cm_event *event)
43854
43855 cm_id->add_ref(cm_id);
43856 ret = cm_id->event_handler(cm_id, &cm_event);
43857- atomic_inc(&cm_closes);
43858+ atomic_inc_unchecked(&cm_closes);
43859 cm_event.event = IW_CM_EVENT_CLOSE;
43860 cm_event.status = 0;
43861 cm_event.provider_data = cm_id->provider_data;
43862@@ -3981,7 +3981,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
43863 return;
43864 cm_id = cm_node->cm_id;
43865
43866- atomic_inc(&cm_connect_reqs);
43867+ atomic_inc_unchecked(&cm_connect_reqs);
43868 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
43869 cm_node, cm_id, jiffies);
43870
43871@@ -4030,7 +4030,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
43872 return;
43873 cm_id = cm_node->cm_id;
43874
43875- atomic_inc(&cm_connect_reqs);
43876+ atomic_inc_unchecked(&cm_connect_reqs);
43877 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
43878 cm_node, cm_id, jiffies);
43879
43880diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
43881index 4166452..fc952c3 100644
43882--- a/drivers/infiniband/hw/nes/nes_mgt.c
43883+++ b/drivers/infiniband/hw/nes/nes_mgt.c
43884@@ -40,8 +40,8 @@
43885 #include "nes.h"
43886 #include "nes_mgt.h"
43887
43888-atomic_t pau_qps_created;
43889-atomic_t pau_qps_destroyed;
43890+atomic_unchecked_t pau_qps_created;
43891+atomic_unchecked_t pau_qps_destroyed;
43892
43893 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
43894 {
43895@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
43896 {
43897 struct sk_buff *skb;
43898 unsigned long flags;
43899- atomic_inc(&pau_qps_destroyed);
43900+ atomic_inc_unchecked(&pau_qps_destroyed);
43901
43902 /* Free packets that have not yet been forwarded */
43903 /* Lock is acquired by skb_dequeue when removing the skb */
43904@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
43905 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
43906 skb_queue_head_init(&nesqp->pau_list);
43907 spin_lock_init(&nesqp->pau_lock);
43908- atomic_inc(&pau_qps_created);
43909+ atomic_inc_unchecked(&pau_qps_created);
43910 nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
43911 }
43912
43913diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
43914index 70acda9..a96de9d 100644
43915--- a/drivers/infiniband/hw/nes/nes_nic.c
43916+++ b/drivers/infiniband/hw/nes/nes_nic.c
43917@@ -1274,39 +1274,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
43918 target_stat_values[++index] = mh_detected;
43919 target_stat_values[++index] = mh_pauses_sent;
43920 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
43921- target_stat_values[++index] = atomic_read(&cm_connects);
43922- target_stat_values[++index] = atomic_read(&cm_accepts);
43923- target_stat_values[++index] = atomic_read(&cm_disconnects);
43924- target_stat_values[++index] = atomic_read(&cm_connecteds);
43925- target_stat_values[++index] = atomic_read(&cm_connect_reqs);
43926- target_stat_values[++index] = atomic_read(&cm_rejects);
43927- target_stat_values[++index] = atomic_read(&mod_qp_timouts);
43928- target_stat_values[++index] = atomic_read(&qps_created);
43929- target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
43930- target_stat_values[++index] = atomic_read(&qps_destroyed);
43931- target_stat_values[++index] = atomic_read(&cm_closes);
43932+ target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
43933+ target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
43934+ target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
43935+ target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
43936+ target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
43937+ target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
43938+ target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
43939+ target_stat_values[++index] = atomic_read_unchecked(&qps_created);
43940+ target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
43941+ target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
43942+ target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
43943 target_stat_values[++index] = cm_packets_sent;
43944 target_stat_values[++index] = cm_packets_bounced;
43945 target_stat_values[++index] = cm_packets_created;
43946 target_stat_values[++index] = cm_packets_received;
43947 target_stat_values[++index] = cm_packets_dropped;
43948 target_stat_values[++index] = cm_packets_retrans;
43949- target_stat_values[++index] = atomic_read(&cm_listens_created);
43950- target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
43951+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
43952+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
43953 target_stat_values[++index] = cm_backlog_drops;
43954- target_stat_values[++index] = atomic_read(&cm_loopbacks);
43955- target_stat_values[++index] = atomic_read(&cm_nodes_created);
43956- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
43957- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
43958- target_stat_values[++index] = atomic_read(&cm_resets_recvd);
43959+ target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
43960+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
43961+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
43962+ target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
43963+ target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
43964 target_stat_values[++index] = nesadapter->free_4kpbl;
43965 target_stat_values[++index] = nesadapter->free_256pbl;
43966 target_stat_values[++index] = int_mod_timer_init;
43967 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
43968 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
43969 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
43970- target_stat_values[++index] = atomic_read(&pau_qps_created);
43971- target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
43972+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
43973+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
43974 }
43975
43976 /**
43977diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
43978index c0d0296..3185f57 100644
43979--- a/drivers/infiniband/hw/nes/nes_verbs.c
43980+++ b/drivers/infiniband/hw/nes/nes_verbs.c
43981@@ -46,9 +46,9 @@
43982
43983 #include <rdma/ib_umem.h>
43984
43985-atomic_t mod_qp_timouts;
43986-atomic_t qps_created;
43987-atomic_t sw_qps_destroyed;
43988+atomic_unchecked_t mod_qp_timouts;
43989+atomic_unchecked_t qps_created;
43990+atomic_unchecked_t sw_qps_destroyed;
43991
43992 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
43993
43994@@ -1134,7 +1134,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
43995 if (init_attr->create_flags)
43996 return ERR_PTR(-EINVAL);
43997
43998- atomic_inc(&qps_created);
43999+ atomic_inc_unchecked(&qps_created);
44000 switch (init_attr->qp_type) {
44001 case IB_QPT_RC:
44002 if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
44003@@ -1468,7 +1468,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
44004 struct iw_cm_event cm_event;
44005 int ret = 0;
44006
44007- atomic_inc(&sw_qps_destroyed);
44008+ atomic_inc_unchecked(&sw_qps_destroyed);
44009 nesqp->destroyed = 1;
44010
44011 /* Blow away the connection if it exists. */
44012diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
44013index ffd48bf..83cdb56 100644
44014--- a/drivers/infiniband/hw/qib/qib.h
44015+++ b/drivers/infiniband/hw/qib/qib.h
44016@@ -52,6 +52,7 @@
44017 #include <linux/kref.h>
44018 #include <linux/sched.h>
44019 #include <linux/kthread.h>
44020+#include <linux/slab.h>
44021
44022 #include "qib_common.h"
44023 #include "qib_verbs.h"
44024diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44025index cdc7df4..a2fdfdb 100644
44026--- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44027+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44028@@ -156,7 +156,7 @@ static size_t ipoib_get_size(const struct net_device *dev)
44029 nla_total_size(2); /* IFLA_IPOIB_UMCAST */
44030 }
44031
44032-static struct rtnl_link_ops ipoib_link_ops __read_mostly = {
44033+static struct rtnl_link_ops ipoib_link_ops = {
44034 .kind = "ipoib",
44035 .maxtype = IFLA_IPOIB_MAX,
44036 .policy = ipoib_policy,
44037diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
44038index e853a21..56fc5a8 100644
44039--- a/drivers/input/gameport/gameport.c
44040+++ b/drivers/input/gameport/gameport.c
44041@@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys);
44042 */
44043 static void gameport_init_port(struct gameport *gameport)
44044 {
44045- static atomic_t gameport_no = ATOMIC_INIT(-1);
44046+ static atomic_unchecked_t gameport_no = ATOMIC_INIT(-1);
44047
44048 __module_get(THIS_MODULE);
44049
44050 mutex_init(&gameport->drv_mutex);
44051 device_initialize(&gameport->dev);
44052 dev_set_name(&gameport->dev, "gameport%lu",
44053- (unsigned long)atomic_inc_return(&gameport_no));
44054+ (unsigned long)atomic_inc_return_unchecked(&gameport_no));
44055 gameport->dev.bus = &gameport_bus;
44056 gameport->dev.release = gameport_release_port;
44057 if (gameport->parent)
44058diff --git a/drivers/input/input.c b/drivers/input/input.c
44059index cc357f1..ee42fbc 100644
44060--- a/drivers/input/input.c
44061+++ b/drivers/input/input.c
44062@@ -1781,7 +1781,7 @@ EXPORT_SYMBOL_GPL(input_class);
44063 */
44064 struct input_dev *input_allocate_device(void)
44065 {
44066- static atomic_t input_no = ATOMIC_INIT(-1);
44067+ static atomic_unchecked_t input_no = ATOMIC_INIT(-1);
44068 struct input_dev *dev;
44069
44070 dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
44071@@ -1796,7 +1796,7 @@ struct input_dev *input_allocate_device(void)
44072 INIT_LIST_HEAD(&dev->node);
44073
44074 dev_set_name(&dev->dev, "input%lu",
44075- (unsigned long)atomic_inc_return(&input_no));
44076+ (unsigned long)atomic_inc_return_unchecked(&input_no));
44077
44078 __module_get(THIS_MODULE);
44079 }
44080diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
44081index 4a95b22..874c182 100644
44082--- a/drivers/input/joystick/sidewinder.c
44083+++ b/drivers/input/joystick/sidewinder.c
44084@@ -30,6 +30,7 @@
44085 #include <linux/kernel.h>
44086 #include <linux/module.h>
44087 #include <linux/slab.h>
44088+#include <linux/sched.h>
44089 #include <linux/input.h>
44090 #include <linux/gameport.h>
44091 #include <linux/jiffies.h>
44092diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
44093index 3aa2f3f..53c00ea 100644
44094--- a/drivers/input/joystick/xpad.c
44095+++ b/drivers/input/joystick/xpad.c
44096@@ -886,7 +886,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
44097
44098 static int xpad_led_probe(struct usb_xpad *xpad)
44099 {
44100- static atomic_t led_seq = ATOMIC_INIT(-1);
44101+ static atomic_unchecked_t led_seq = ATOMIC_INIT(-1);
44102 unsigned long led_no;
44103 struct xpad_led *led;
44104 struct led_classdev *led_cdev;
44105@@ -899,7 +899,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
44106 if (!led)
44107 return -ENOMEM;
44108
44109- led_no = atomic_inc_return(&led_seq);
44110+ led_no = atomic_inc_return_unchecked(&led_seq);
44111
44112 snprintf(led->name, sizeof(led->name), "xpad%lu", led_no);
44113 led->xpad = xpad;
44114diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
44115index ac1fa5f..5f7502c 100644
44116--- a/drivers/input/misc/ims-pcu.c
44117+++ b/drivers/input/misc/ims-pcu.c
44118@@ -1851,7 +1851,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
44119
44120 static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
44121 {
44122- static atomic_t device_no = ATOMIC_INIT(-1);
44123+ static atomic_unchecked_t device_no = ATOMIC_INIT(-1);
44124
44125 const struct ims_pcu_device_info *info;
44126 int error;
44127@@ -1882,7 +1882,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
44128 }
44129
44130 /* Device appears to be operable, complete initialization */
44131- pcu->device_no = atomic_inc_return(&device_no);
44132+ pcu->device_no = atomic_inc_return_unchecked(&device_no);
44133
44134 /*
44135 * PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
44136diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
44137index d02e1bd..d719719 100644
44138--- a/drivers/input/mouse/psmouse.h
44139+++ b/drivers/input/mouse/psmouse.h
44140@@ -124,7 +124,7 @@ struct psmouse_attribute {
44141 ssize_t (*set)(struct psmouse *psmouse, void *data,
44142 const char *buf, size_t count);
44143 bool protect;
44144-};
44145+} __do_const;
44146 #define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
44147
44148 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
44149diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
44150index b604564..3f14ae4 100644
44151--- a/drivers/input/mousedev.c
44152+++ b/drivers/input/mousedev.c
44153@@ -744,7 +744,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
44154
44155 spin_unlock_irq(&client->packet_lock);
44156
44157- if (copy_to_user(buffer, data, count))
44158+ if (count > sizeof(data) || copy_to_user(buffer, data, count))
44159 return -EFAULT;
44160
44161 return count;
44162diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
44163index a05a517..323a2fd 100644
44164--- a/drivers/input/serio/serio.c
44165+++ b/drivers/input/serio/serio.c
44166@@ -514,7 +514,7 @@ static void serio_release_port(struct device *dev)
44167 */
44168 static void serio_init_port(struct serio *serio)
44169 {
44170- static atomic_t serio_no = ATOMIC_INIT(-1);
44171+ static atomic_unchecked_t serio_no = ATOMIC_INIT(-1);
44172
44173 __module_get(THIS_MODULE);
44174
44175@@ -525,7 +525,7 @@ static void serio_init_port(struct serio *serio)
44176 mutex_init(&serio->drv_mutex);
44177 device_initialize(&serio->dev);
44178 dev_set_name(&serio->dev, "serio%lu",
44179- (unsigned long)atomic_inc_return(&serio_no));
44180+ (unsigned long)atomic_inc_return_unchecked(&serio_no));
44181 serio->dev.bus = &serio_bus;
44182 serio->dev.release = serio_release_port;
44183 serio->dev.groups = serio_device_attr_groups;
44184diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
44185index 71ef5d6..93380a9 100644
44186--- a/drivers/input/serio/serio_raw.c
44187+++ b/drivers/input/serio/serio_raw.c
44188@@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
44189
44190 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
44191 {
44192- static atomic_t serio_raw_no = ATOMIC_INIT(-1);
44193+ static atomic_unchecked_t serio_raw_no = ATOMIC_INIT(-1);
44194 struct serio_raw *serio_raw;
44195 int err;
44196
44197@@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
44198 }
44199
44200 snprintf(serio_raw->name, sizeof(serio_raw->name),
44201- "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
44202+ "serio_raw%ld", (long)atomic_inc_return_unchecked(&serio_raw_no));
44203 kref_init(&serio_raw->kref);
44204 INIT_LIST_HEAD(&serio_raw->client_list);
44205 init_waitqueue_head(&serio_raw->wait);
44206diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
44207index 92e2243..8fd9092 100644
44208--- a/drivers/input/touchscreen/htcpen.c
44209+++ b/drivers/input/touchscreen/htcpen.c
44210@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
44211 }
44212 };
44213
44214-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
44215+static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
44216 {
44217 .ident = "Shift",
44218 .matches = {
44219diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
44220index 48882c1..93e0987 100644
44221--- a/drivers/iommu/amd_iommu.c
44222+++ b/drivers/iommu/amd_iommu.c
44223@@ -823,11 +823,21 @@ static void copy_cmd_to_buffer(struct amd_iommu *iommu,
44224
44225 static void build_completion_wait(struct iommu_cmd *cmd, u64 address)
44226 {
44227+ phys_addr_t physaddr;
44228 WARN_ON(address & 0x7ULL);
44229
44230 memset(cmd, 0, sizeof(*cmd));
44231- cmd->data[0] = lower_32_bits(__pa(address)) | CMD_COMPL_WAIT_STORE_MASK;
44232- cmd->data[1] = upper_32_bits(__pa(address));
44233+
44234+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
44235+ if (object_starts_on_stack((void *)address)) {
44236+ void *adjbuf = (void *)address - current->stack + current->lowmem_stack;
44237+ physaddr = __pa((u64)adjbuf);
44238+ } else
44239+#endif
44240+ physaddr = __pa(address);
44241+
44242+ cmd->data[0] = lower_32_bits(physaddr) | CMD_COMPL_WAIT_STORE_MASK;
44243+ cmd->data[1] = upper_32_bits(physaddr);
44244 cmd->data[2] = 1;
44245 CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);
44246 }
44247diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
44248index a3adde6..988ee96 100644
44249--- a/drivers/iommu/arm-smmu.c
44250+++ b/drivers/iommu/arm-smmu.c
44251@@ -338,7 +338,7 @@ enum arm_smmu_domain_stage {
44252
44253 struct arm_smmu_domain {
44254 struct arm_smmu_device *smmu;
44255- struct io_pgtable_ops *pgtbl_ops;
44256+ struct io_pgtable *pgtbl;
44257 spinlock_t pgtbl_lock;
44258 struct arm_smmu_cfg cfg;
44259 enum arm_smmu_domain_stage stage;
44260@@ -833,7 +833,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44261 {
44262 int irq, start, ret = 0;
44263 unsigned long ias, oas;
44264- struct io_pgtable_ops *pgtbl_ops;
44265+ struct io_pgtable *pgtbl;
44266 struct io_pgtable_cfg pgtbl_cfg;
44267 enum io_pgtable_fmt fmt;
44268 struct arm_smmu_domain *smmu_domain = domain->priv;
44269@@ -918,14 +918,16 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44270 };
44271
44272 smmu_domain->smmu = smmu;
44273- pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
44274- if (!pgtbl_ops) {
44275+ pgtbl = alloc_io_pgtable(fmt, &pgtbl_cfg, smmu_domain);
44276+ if (!pgtbl) {
44277 ret = -ENOMEM;
44278 goto out_clear_smmu;
44279 }
44280
44281 /* Update our support page sizes to reflect the page table format */
44282- arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
44283+ pax_open_kernel();
44284+ *(unsigned long *)&arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
44285+ pax_close_kernel();
44286
44287 /* Initialise the context bank with our page table cfg */
44288 arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg);
44289@@ -946,7 +948,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44290 mutex_unlock(&smmu_domain->init_mutex);
44291
44292 /* Publish page table ops for map/unmap */
44293- smmu_domain->pgtbl_ops = pgtbl_ops;
44294+ smmu_domain->pgtbl = pgtbl;
44295 return 0;
44296
44297 out_clear_smmu:
44298@@ -979,8 +981,7 @@ static void arm_smmu_destroy_domain_context(struct iommu_domain *domain)
44299 free_irq(irq, domain);
44300 }
44301
44302- if (smmu_domain->pgtbl_ops)
44303- free_io_pgtable_ops(smmu_domain->pgtbl_ops);
44304+ free_io_pgtable(smmu_domain->pgtbl);
44305
44306 __arm_smmu_free_bitmap(smmu->context_map, cfg->cbndx);
44307 }
44308@@ -1204,13 +1205,13 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
44309 int ret;
44310 unsigned long flags;
44311 struct arm_smmu_domain *smmu_domain = domain->priv;
44312- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44313+ struct io_pgtable *iop = smmu_domain->pgtbl;
44314
44315- if (!ops)
44316+ if (!iop)
44317 return -ENODEV;
44318
44319 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44320- ret = ops->map(ops, iova, paddr, size, prot);
44321+ ret = iop->ops->map(iop, iova, paddr, size, prot);
44322 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44323 return ret;
44324 }
44325@@ -1221,13 +1222,13 @@ static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
44326 size_t ret;
44327 unsigned long flags;
44328 struct arm_smmu_domain *smmu_domain = domain->priv;
44329- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44330+ struct io_pgtable *iop = smmu_domain->pgtbl;
44331
44332- if (!ops)
44333+ if (!iop)
44334 return 0;
44335
44336 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44337- ret = ops->unmap(ops, iova, size);
44338+ ret = iop->ops->unmap(iop, iova, size);
44339 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44340 return ret;
44341 }
44342@@ -1238,7 +1239,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
44343 struct arm_smmu_domain *smmu_domain = domain->priv;
44344 struct arm_smmu_device *smmu = smmu_domain->smmu;
44345 struct arm_smmu_cfg *cfg = &smmu_domain->cfg;
44346- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44347+ struct io_pgtable *iop = smmu_domain->pgtbl;
44348 struct device *dev = smmu->dev;
44349 void __iomem *cb_base;
44350 u32 tmp;
44351@@ -1261,7 +1262,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
44352 dev_err(dev,
44353 "iova to phys timed out on 0x%pad. Falling back to software table walk.\n",
44354 &iova);
44355- return ops->iova_to_phys(ops, iova);
44356+ return iop->ops->iova_to_phys(iop, iova);
44357 }
44358
44359 phys = readl_relaxed(cb_base + ARM_SMMU_CB_PAR_LO);
44360@@ -1282,9 +1283,9 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
44361 phys_addr_t ret;
44362 unsigned long flags;
44363 struct arm_smmu_domain *smmu_domain = domain->priv;
44364- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44365+ struct io_pgtable *iop = smmu_domain->pgtbl;
44366
44367- if (!ops)
44368+ if (!iop)
44369 return 0;
44370
44371 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44372@@ -1292,7 +1293,7 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
44373 smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
44374 ret = arm_smmu_iova_to_phys_hard(domain, iova);
44375 } else {
44376- ret = ops->iova_to_phys(ops, iova);
44377+ ret = iop->ops->iova_to_phys(iop, iova);
44378 }
44379
44380 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44381@@ -1651,7 +1652,9 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
44382 size |= SZ_64K | SZ_512M;
44383 }
44384
44385- arm_smmu_ops.pgsize_bitmap &= size;
44386+ pax_open_kernel();
44387+ *(unsigned long *)&arm_smmu_ops.pgsize_bitmap &= size;
44388+ pax_close_kernel();
44389 dev_notice(smmu->dev, "\tSupported page sizes: 0x%08lx\n", size);
44390
44391 if (smmu->features & ARM_SMMU_FEAT_TRANS_S1)
44392diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
44393index b610a8d..08eb879 100644
44394--- a/drivers/iommu/io-pgtable-arm.c
44395+++ b/drivers/iommu/io-pgtable-arm.c
44396@@ -36,12 +36,6 @@
44397 #define io_pgtable_to_data(x) \
44398 container_of((x), struct arm_lpae_io_pgtable, iop)
44399
44400-#define io_pgtable_ops_to_pgtable(x) \
44401- container_of((x), struct io_pgtable, ops)
44402-
44403-#define io_pgtable_ops_to_data(x) \
44404- io_pgtable_to_data(io_pgtable_ops_to_pgtable(x))
44405-
44406 /*
44407 * For consistency with the architecture, we always consider
44408 * ARM_LPAE_MAX_LEVELS levels, with the walk starting at level n >=0
44409@@ -302,10 +296,10 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
44410 return pte;
44411 }
44412
44413-static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
44414+static int arm_lpae_map(struct io_pgtable *iop, unsigned long iova,
44415 phys_addr_t paddr, size_t size, int iommu_prot)
44416 {
44417- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44418+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44419 arm_lpae_iopte *ptep = data->pgd;
44420 int lvl = ARM_LPAE_START_LVL(data);
44421 arm_lpae_iopte prot;
44422@@ -445,12 +439,11 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
44423 return __arm_lpae_unmap(data, iova, size, lvl + 1, ptep);
44424 }
44425
44426-static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
44427+static int arm_lpae_unmap(struct io_pgtable *iop, unsigned long iova,
44428 size_t size)
44429 {
44430 size_t unmapped;
44431- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44432- struct io_pgtable *iop = &data->iop;
44433+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44434 arm_lpae_iopte *ptep = data->pgd;
44435 int lvl = ARM_LPAE_START_LVL(data);
44436
44437@@ -461,10 +454,10 @@ static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
44438 return unmapped;
44439 }
44440
44441-static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops,
44442+static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable *iop,
44443 unsigned long iova)
44444 {
44445- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44446+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44447 arm_lpae_iopte pte, *ptep = data->pgd;
44448 int lvl = ARM_LPAE_START_LVL(data);
44449
44450@@ -531,6 +524,12 @@ static void arm_lpae_restrict_pgsizes(struct io_pgtable_cfg *cfg)
44451 }
44452 }
44453
44454+static struct io_pgtable_ops arm_lpae_io_pgtable_ops = {
44455+ .map = arm_lpae_map,
44456+ .unmap = arm_lpae_unmap,
44457+ .iova_to_phys = arm_lpae_iova_to_phys,
44458+};
44459+
44460 static struct arm_lpae_io_pgtable *
44461 arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
44462 {
44463@@ -562,11 +561,7 @@ arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
44464 pgd_bits = va_bits - (data->bits_per_level * (data->levels - 1));
44465 data->pgd_size = 1UL << (pgd_bits + ilog2(sizeof(arm_lpae_iopte)));
44466
44467- data->iop.ops = (struct io_pgtable_ops) {
44468- .map = arm_lpae_map,
44469- .unmap = arm_lpae_unmap,
44470- .iova_to_phys = arm_lpae_iova_to_phys,
44471- };
44472+ data->iop.ops = &arm_lpae_io_pgtable_ops;
44473
44474 return data;
44475 }
44476@@ -825,9 +820,9 @@ static struct iommu_gather_ops dummy_tlb_ops __initdata = {
44477 .flush_pgtable = dummy_flush_pgtable,
44478 };
44479
44480-static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
44481+static void __init arm_lpae_dump_ops(struct io_pgtable *iop)
44482 {
44483- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44484+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44485 struct io_pgtable_cfg *cfg = &data->iop.cfg;
44486
44487 pr_err("cfg: pgsize_bitmap 0x%lx, ias %u-bit\n",
44488@@ -837,9 +832,9 @@ static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
44489 data->bits_per_level, data->pgd);
44490 }
44491
44492-#define __FAIL(ops, i) ({ \
44493+#define __FAIL(iop, i) ({ \
44494 WARN(1, "selftest: test failed for fmt idx %d\n", (i)); \
44495- arm_lpae_dump_ops(ops); \
44496+ arm_lpae_dump_ops(iop); \
44497 selftest_running = false; \
44498 -EFAULT; \
44499 })
44500@@ -854,30 +849,32 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44501 int i, j;
44502 unsigned long iova;
44503 size_t size;
44504- struct io_pgtable_ops *ops;
44505+ struct io_pgtable *iop;
44506+ const struct io_pgtable_ops *ops;
44507
44508 selftest_running = true;
44509
44510 for (i = 0; i < ARRAY_SIZE(fmts); ++i) {
44511 cfg_cookie = cfg;
44512- ops = alloc_io_pgtable_ops(fmts[i], cfg, cfg);
44513- if (!ops) {
44514+ iop = alloc_io_pgtable(fmts[i], cfg, cfg);
44515+ if (!iop) {
44516 pr_err("selftest: failed to allocate io pgtable ops\n");
44517 return -ENOMEM;
44518 }
44519+ ops = iop->ops;
44520
44521 /*
44522 * Initial sanity checks.
44523 * Empty page tables shouldn't provide any translations.
44524 */
44525- if (ops->iova_to_phys(ops, 42))
44526- return __FAIL(ops, i);
44527+ if (ops->iova_to_phys(iop, 42))
44528+ return __FAIL(iop, i);
44529
44530- if (ops->iova_to_phys(ops, SZ_1G + 42))
44531- return __FAIL(ops, i);
44532+ if (ops->iova_to_phys(iop, SZ_1G + 42))
44533+ return __FAIL(iop, i);
44534
44535- if (ops->iova_to_phys(ops, SZ_2G + 42))
44536- return __FAIL(ops, i);
44537+ if (ops->iova_to_phys(iop, SZ_2G + 42))
44538+ return __FAIL(iop, i);
44539
44540 /*
44541 * Distinct mappings of different granule sizes.
44542@@ -887,19 +884,19 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44543 while (j != BITS_PER_LONG) {
44544 size = 1UL << j;
44545
44546- if (ops->map(ops, iova, iova, size, IOMMU_READ |
44547+ if (ops->map(iop, iova, iova, size, IOMMU_READ |
44548 IOMMU_WRITE |
44549 IOMMU_NOEXEC |
44550 IOMMU_CACHE))
44551- return __FAIL(ops, i);
44552+ return __FAIL(iop, i);
44553
44554 /* Overlapping mappings */
44555- if (!ops->map(ops, iova, iova + size, size,
44556+ if (!ops->map(iop, iova, iova + size, size,
44557 IOMMU_READ | IOMMU_NOEXEC))
44558- return __FAIL(ops, i);
44559+ return __FAIL(iop, i);
44560
44561- if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
44562- return __FAIL(ops, i);
44563+ if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
44564+ return __FAIL(iop, i);
44565
44566 iova += SZ_1G;
44567 j++;
44568@@ -908,15 +905,15 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44569
44570 /* Partial unmap */
44571 size = 1UL << __ffs(cfg->pgsize_bitmap);
44572- if (ops->unmap(ops, SZ_1G + size, size) != size)
44573- return __FAIL(ops, i);
44574+ if (ops->unmap(iop, SZ_1G + size, size) != size)
44575+ return __FAIL(iop, i);
44576
44577 /* Remap of partial unmap */
44578- if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ))
44579- return __FAIL(ops, i);
44580+ if (ops->map(iop, SZ_1G + size, size, size, IOMMU_READ))
44581+ return __FAIL(iop, i);
44582
44583- if (ops->iova_to_phys(ops, SZ_1G + size + 42) != (size + 42))
44584- return __FAIL(ops, i);
44585+ if (ops->iova_to_phys(iop, SZ_1G + size + 42) != (size + 42))
44586+ return __FAIL(iop, i);
44587
44588 /* Full unmap */
44589 iova = 0;
44590@@ -924,25 +921,25 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44591 while (j != BITS_PER_LONG) {
44592 size = 1UL << j;
44593
44594- if (ops->unmap(ops, iova, size) != size)
44595- return __FAIL(ops, i);
44596+ if (ops->unmap(iop, iova, size) != size)
44597+ return __FAIL(iop, i);
44598
44599- if (ops->iova_to_phys(ops, iova + 42))
44600- return __FAIL(ops, i);
44601+ if (ops->iova_to_phys(iop, iova + 42))
44602+ return __FAIL(iop, i);
44603
44604 /* Remap full block */
44605- if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
44606- return __FAIL(ops, i);
44607+ if (ops->map(iop, iova, iova, size, IOMMU_WRITE))
44608+ return __FAIL(iop, i);
44609
44610- if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
44611- return __FAIL(ops, i);
44612+ if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
44613+ return __FAIL(iop, i);
44614
44615 iova += SZ_1G;
44616 j++;
44617 j = find_next_bit(&cfg->pgsize_bitmap, BITS_PER_LONG, j);
44618 }
44619
44620- free_io_pgtable_ops(ops);
44621+ free_io_pgtable(iop);
44622 }
44623
44624 selftest_running = false;
44625diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c
44626index 6436fe2..088c965 100644
44627--- a/drivers/iommu/io-pgtable.c
44628+++ b/drivers/iommu/io-pgtable.c
44629@@ -40,7 +40,7 @@ io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] =
44630 #endif
44631 };
44632
44633-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44634+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
44635 struct io_pgtable_cfg *cfg,
44636 void *cookie)
44637 {
44638@@ -62,21 +62,18 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44639 iop->cookie = cookie;
44640 iop->cfg = *cfg;
44641
44642- return &iop->ops;
44643+ return iop;
44644 }
44645
44646 /*
44647 * It is the IOMMU driver's responsibility to ensure that the page table
44648 * is no longer accessible to the walker by this point.
44649 */
44650-void free_io_pgtable_ops(struct io_pgtable_ops *ops)
44651+void free_io_pgtable(struct io_pgtable *iop)
44652 {
44653- struct io_pgtable *iop;
44654-
44655- if (!ops)
44656+ if (!iop)
44657 return;
44658
44659- iop = container_of(ops, struct io_pgtable, ops);
44660 iop->cfg.tlb->tlb_flush_all(iop->cookie);
44661 io_pgtable_init_table[iop->fmt]->free(iop);
44662 }
44663diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
44664index 10e32f6..0b276c8 100644
44665--- a/drivers/iommu/io-pgtable.h
44666+++ b/drivers/iommu/io-pgtable.h
44667@@ -75,17 +75,18 @@ struct io_pgtable_cfg {
44668 * These functions map directly onto the iommu_ops member functions with
44669 * the same names.
44670 */
44671+struct io_pgtable;
44672 struct io_pgtable_ops {
44673- int (*map)(struct io_pgtable_ops *ops, unsigned long iova,
44674+ int (*map)(struct io_pgtable *iop, unsigned long iova,
44675 phys_addr_t paddr, size_t size, int prot);
44676- int (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
44677+ int (*unmap)(struct io_pgtable *iop, unsigned long iova,
44678 size_t size);
44679- phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops,
44680+ phys_addr_t (*iova_to_phys)(struct io_pgtable *iop,
44681 unsigned long iova);
44682 };
44683
44684 /**
44685- * alloc_io_pgtable_ops() - Allocate a page table allocator for use by an IOMMU.
44686+ * alloc_io_pgtable() - Allocate a page table allocator for use by an IOMMU.
44687 *
44688 * @fmt: The page table format.
44689 * @cfg: The page table configuration. This will be modified to represent
44690@@ -94,9 +95,9 @@ struct io_pgtable_ops {
44691 * @cookie: An opaque token provided by the IOMMU driver and passed back to
44692 * the callback routines in cfg->tlb.
44693 */
44694-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44695- struct io_pgtable_cfg *cfg,
44696- void *cookie);
44697+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
44698+ struct io_pgtable_cfg *cfg,
44699+ void *cookie);
44700
44701 /**
44702 * free_io_pgtable_ops() - Free an io_pgtable_ops structure. The caller
44703@@ -105,7 +106,7 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44704 *
44705 * @ops: The ops returned from alloc_io_pgtable_ops.
44706 */
44707-void free_io_pgtable_ops(struct io_pgtable_ops *ops);
44708+void free_io_pgtable(struct io_pgtable *iop);
44709
44710
44711 /*
44712@@ -125,7 +126,7 @@ struct io_pgtable {
44713 enum io_pgtable_fmt fmt;
44714 void *cookie;
44715 struct io_pgtable_cfg cfg;
44716- struct io_pgtable_ops ops;
44717+ const struct io_pgtable_ops *ops;
44718 };
44719
44720 /**
44721diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
44722index 72e683d..c9db262 100644
44723--- a/drivers/iommu/iommu.c
44724+++ b/drivers/iommu/iommu.c
44725@@ -802,7 +802,7 @@ static int iommu_bus_notifier(struct notifier_block *nb,
44726 static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
44727 {
44728 int err;
44729- struct notifier_block *nb;
44730+ notifier_block_no_const *nb;
44731 struct iommu_callback_data cb = {
44732 .ops = ops,
44733 };
44734diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
44735index bc39bdf..e2de272 100644
44736--- a/drivers/iommu/ipmmu-vmsa.c
44737+++ b/drivers/iommu/ipmmu-vmsa.c
44738@@ -41,7 +41,7 @@ struct ipmmu_vmsa_domain {
44739 struct iommu_domain *io_domain;
44740
44741 struct io_pgtable_cfg cfg;
44742- struct io_pgtable_ops *iop;
44743+ struct io_pgtable *iop;
44744
44745 unsigned int context_id;
44746 spinlock_t lock; /* Protects mappings */
44747@@ -323,8 +323,7 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
44748 domain->cfg.oas = 40;
44749 domain->cfg.tlb = &ipmmu_gather_ops;
44750
44751- domain->iop = alloc_io_pgtable_ops(ARM_32_LPAE_S1, &domain->cfg,
44752- domain);
44753+ domain->iop = alloc_io_pgtable(ARM_32_LPAE_S1, &domain->cfg, domain);
44754 if (!domain->iop)
44755 return -EINVAL;
44756
44757@@ -482,7 +481,7 @@ static void ipmmu_domain_destroy(struct iommu_domain *io_domain)
44758 * been detached.
44759 */
44760 ipmmu_domain_destroy_context(domain);
44761- free_io_pgtable_ops(domain->iop);
44762+ free_io_pgtable(domain->iop);
44763 kfree(domain);
44764 }
44765
44766@@ -551,7 +550,7 @@ static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova,
44767 if (!domain)
44768 return -ENODEV;
44769
44770- return domain->iop->map(domain->iop, iova, paddr, size, prot);
44771+ return domain->iop->ops->map(domain->iop, iova, paddr, size, prot);
44772 }
44773
44774 static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
44775@@ -559,7 +558,7 @@ static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
44776 {
44777 struct ipmmu_vmsa_domain *domain = io_domain->priv;
44778
44779- return domain->iop->unmap(domain->iop, iova, size);
44780+ return domain->iop->ops->unmap(domain->iop, iova, size);
44781 }
44782
44783 static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
44784@@ -569,7 +568,7 @@ static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
44785
44786 /* TODO: Is locking needed ? */
44787
44788- return domain->iop->iova_to_phys(domain->iop, iova);
44789+ return domain->iop->ops->iova_to_phys(domain->iop, iova);
44790 }
44791
44792 static int ipmmu_find_utlbs(struct ipmmu_vmsa_device *mmu, struct device *dev,
44793diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
44794index 390079e..1da9d6c 100644
44795--- a/drivers/iommu/irq_remapping.c
44796+++ b/drivers/iommu/irq_remapping.c
44797@@ -329,7 +329,7 @@ int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
44798 void panic_if_irq_remap(const char *msg)
44799 {
44800 if (irq_remapping_enabled)
44801- panic(msg);
44802+ panic("%s", msg);
44803 }
44804
44805 static void ir_ack_apic_edge(struct irq_data *data)
44806@@ -350,10 +350,12 @@ static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
44807
44808 void irq_remap_modify_chip_defaults(struct irq_chip *chip)
44809 {
44810- chip->irq_print_chip = ir_print_prefix;
44811- chip->irq_ack = ir_ack_apic_edge;
44812- chip->irq_eoi = ir_ack_apic_level;
44813- chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
44814+ pax_open_kernel();
44815+ *(void **)&chip->irq_print_chip = ir_print_prefix;
44816+ *(void **)&chip->irq_ack = ir_ack_apic_edge;
44817+ *(void **)&chip->irq_eoi = ir_ack_apic_level;
44818+ *(void **)&chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
44819+ pax_close_kernel();
44820 }
44821
44822 bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
44823diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
44824index 471e1cd..b53b870 100644
44825--- a/drivers/irqchip/irq-gic.c
44826+++ b/drivers/irqchip/irq-gic.c
44827@@ -84,7 +84,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
44828 * Supported arch specific GIC irq extension.
44829 * Default make them NULL.
44830 */
44831-struct irq_chip gic_arch_extn = {
44832+irq_chip_no_const gic_arch_extn = {
44833 .irq_eoi = NULL,
44834 .irq_mask = NULL,
44835 .irq_unmask = NULL,
44836@@ -318,7 +318,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
44837 chained_irq_exit(chip, desc);
44838 }
44839
44840-static struct irq_chip gic_chip = {
44841+static irq_chip_no_const gic_chip __read_only = {
44842 .name = "GIC",
44843 .irq_mask = gic_mask_irq,
44844 .irq_unmask = gic_unmask_irq,
44845diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
44846index 9a0767b..5e5f86f 100644
44847--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
44848+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
44849@@ -373,7 +373,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
44850 struct intc_irqpin_iomem *i;
44851 struct resource *io[INTC_IRQPIN_REG_NR];
44852 struct resource *irq;
44853- struct irq_chip *irq_chip;
44854+ irq_chip_no_const *irq_chip;
44855 void (*enable_fn)(struct irq_data *d);
44856 void (*disable_fn)(struct irq_data *d);
44857 const char *name = dev_name(dev);
44858diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
44859index 384e6ed..7a771b2 100644
44860--- a/drivers/irqchip/irq-renesas-irqc.c
44861+++ b/drivers/irqchip/irq-renesas-irqc.c
44862@@ -151,7 +151,7 @@ static int irqc_probe(struct platform_device *pdev)
44863 struct irqc_priv *p;
44864 struct resource *io;
44865 struct resource *irq;
44866- struct irq_chip *irq_chip;
44867+ irq_chip_no_const *irq_chip;
44868 const char *name = dev_name(&pdev->dev);
44869 int ret;
44870 int k;
44871diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
44872index 6a2df32..dc962f1 100644
44873--- a/drivers/isdn/capi/capi.c
44874+++ b/drivers/isdn/capi/capi.c
44875@@ -81,8 +81,8 @@ struct capiminor {
44876
44877 struct capi20_appl *ap;
44878 u32 ncci;
44879- atomic_t datahandle;
44880- atomic_t msgid;
44881+ atomic_unchecked_t datahandle;
44882+ atomic_unchecked_t msgid;
44883
44884 struct tty_port port;
44885 int ttyinstop;
44886@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
44887 capimsg_setu16(s, 2, mp->ap->applid);
44888 capimsg_setu8 (s, 4, CAPI_DATA_B3);
44889 capimsg_setu8 (s, 5, CAPI_RESP);
44890- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
44891+ capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
44892 capimsg_setu32(s, 8, mp->ncci);
44893 capimsg_setu16(s, 12, datahandle);
44894 }
44895@@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
44896 mp->outbytes -= len;
44897 spin_unlock_bh(&mp->outlock);
44898
44899- datahandle = atomic_inc_return(&mp->datahandle);
44900+ datahandle = atomic_inc_return_unchecked(&mp->datahandle);
44901 skb_push(skb, CAPI_DATA_B3_REQ_LEN);
44902 memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
44903 capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
44904 capimsg_setu16(skb->data, 2, mp->ap->applid);
44905 capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
44906 capimsg_setu8 (skb->data, 5, CAPI_REQ);
44907- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
44908+ capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
44909 capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */
44910 capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
44911 capimsg_setu16(skb->data, 16, len); /* Data length */
44912diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
44913index aecec6d..11e13c5 100644
44914--- a/drivers/isdn/gigaset/bas-gigaset.c
44915+++ b/drivers/isdn/gigaset/bas-gigaset.c
44916@@ -2565,22 +2565,22 @@ static int gigaset_post_reset(struct usb_interface *intf)
44917
44918
44919 static const struct gigaset_ops gigops = {
44920- gigaset_write_cmd,
44921- gigaset_write_room,
44922- gigaset_chars_in_buffer,
44923- gigaset_brkchars,
44924- gigaset_init_bchannel,
44925- gigaset_close_bchannel,
44926- gigaset_initbcshw,
44927- gigaset_freebcshw,
44928- gigaset_reinitbcshw,
44929- gigaset_initcshw,
44930- gigaset_freecshw,
44931- gigaset_set_modem_ctrl,
44932- gigaset_baud_rate,
44933- gigaset_set_line_ctrl,
44934- gigaset_isoc_send_skb,
44935- gigaset_isoc_input,
44936+ .write_cmd = gigaset_write_cmd,
44937+ .write_room = gigaset_write_room,
44938+ .chars_in_buffer = gigaset_chars_in_buffer,
44939+ .brkchars = gigaset_brkchars,
44940+ .init_bchannel = gigaset_init_bchannel,
44941+ .close_bchannel = gigaset_close_bchannel,
44942+ .initbcshw = gigaset_initbcshw,
44943+ .freebcshw = gigaset_freebcshw,
44944+ .reinitbcshw = gigaset_reinitbcshw,
44945+ .initcshw = gigaset_initcshw,
44946+ .freecshw = gigaset_freecshw,
44947+ .set_modem_ctrl = gigaset_set_modem_ctrl,
44948+ .baud_rate = gigaset_baud_rate,
44949+ .set_line_ctrl = gigaset_set_line_ctrl,
44950+ .send_skb = gigaset_isoc_send_skb,
44951+ .handle_input = gigaset_isoc_input,
44952 };
44953
44954 /* bas_gigaset_init
44955diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
44956index 600c79b..3752bab 100644
44957--- a/drivers/isdn/gigaset/interface.c
44958+++ b/drivers/isdn/gigaset/interface.c
44959@@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
44960 }
44961 tty->driver_data = cs;
44962
44963- ++cs->port.count;
44964+ atomic_inc(&cs->port.count);
44965
44966- if (cs->port.count == 1) {
44967+ if (atomic_read(&cs->port.count) == 1) {
44968 tty_port_tty_set(&cs->port, tty);
44969 cs->port.low_latency = 1;
44970 }
44971@@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
44972
44973 if (!cs->connected)
44974 gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
44975- else if (!cs->port.count)
44976+ else if (!atomic_read(&cs->port.count))
44977 dev_warn(cs->dev, "%s: device not opened\n", __func__);
44978- else if (!--cs->port.count)
44979+ else if (!atomic_dec_return(&cs->port.count))
44980 tty_port_tty_set(&cs->port, NULL);
44981
44982 mutex_unlock(&cs->mutex);
44983diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
44984index 8c91fd5..14f13ce 100644
44985--- a/drivers/isdn/gigaset/ser-gigaset.c
44986+++ b/drivers/isdn/gigaset/ser-gigaset.c
44987@@ -453,22 +453,22 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
44988 }
44989
44990 static const struct gigaset_ops ops = {
44991- gigaset_write_cmd,
44992- gigaset_write_room,
44993- gigaset_chars_in_buffer,
44994- gigaset_brkchars,
44995- gigaset_init_bchannel,
44996- gigaset_close_bchannel,
44997- gigaset_initbcshw,
44998- gigaset_freebcshw,
44999- gigaset_reinitbcshw,
45000- gigaset_initcshw,
45001- gigaset_freecshw,
45002- gigaset_set_modem_ctrl,
45003- gigaset_baud_rate,
45004- gigaset_set_line_ctrl,
45005- gigaset_m10x_send_skb, /* asyncdata.c */
45006- gigaset_m10x_input, /* asyncdata.c */
45007+ .write_cmd = gigaset_write_cmd,
45008+ .write_room = gigaset_write_room,
45009+ .chars_in_buffer = gigaset_chars_in_buffer,
45010+ .brkchars = gigaset_brkchars,
45011+ .init_bchannel = gigaset_init_bchannel,
45012+ .close_bchannel = gigaset_close_bchannel,
45013+ .initbcshw = gigaset_initbcshw,
45014+ .freebcshw = gigaset_freebcshw,
45015+ .reinitbcshw = gigaset_reinitbcshw,
45016+ .initcshw = gigaset_initcshw,
45017+ .freecshw = gigaset_freecshw,
45018+ .set_modem_ctrl = gigaset_set_modem_ctrl,
45019+ .baud_rate = gigaset_baud_rate,
45020+ .set_line_ctrl = gigaset_set_line_ctrl,
45021+ .send_skb = gigaset_m10x_send_skb, /* asyncdata.c */
45022+ .handle_input = gigaset_m10x_input, /* asyncdata.c */
45023 };
45024
45025
45026diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
45027index 5f306e2..5342f88 100644
45028--- a/drivers/isdn/gigaset/usb-gigaset.c
45029+++ b/drivers/isdn/gigaset/usb-gigaset.c
45030@@ -543,7 +543,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
45031 gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
45032 memcpy(cs->hw.usb->bchars, buf, 6);
45033 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
45034- 0, 0, &buf, 6, 2000);
45035+ 0, 0, buf, 6, 2000);
45036 }
45037
45038 static void gigaset_freebcshw(struct bc_state *bcs)
45039@@ -862,22 +862,22 @@ static int gigaset_pre_reset(struct usb_interface *intf)
45040 }
45041
45042 static const struct gigaset_ops ops = {
45043- gigaset_write_cmd,
45044- gigaset_write_room,
45045- gigaset_chars_in_buffer,
45046- gigaset_brkchars,
45047- gigaset_init_bchannel,
45048- gigaset_close_bchannel,
45049- gigaset_initbcshw,
45050- gigaset_freebcshw,
45051- gigaset_reinitbcshw,
45052- gigaset_initcshw,
45053- gigaset_freecshw,
45054- gigaset_set_modem_ctrl,
45055- gigaset_baud_rate,
45056- gigaset_set_line_ctrl,
45057- gigaset_m10x_send_skb,
45058- gigaset_m10x_input,
45059+ .write_cmd = gigaset_write_cmd,
45060+ .write_room = gigaset_write_room,
45061+ .chars_in_buffer = gigaset_chars_in_buffer,
45062+ .brkchars = gigaset_brkchars,
45063+ .init_bchannel = gigaset_init_bchannel,
45064+ .close_bchannel = gigaset_close_bchannel,
45065+ .initbcshw = gigaset_initbcshw,
45066+ .freebcshw = gigaset_freebcshw,
45067+ .reinitbcshw = gigaset_reinitbcshw,
45068+ .initcshw = gigaset_initcshw,
45069+ .freecshw = gigaset_freecshw,
45070+ .set_modem_ctrl = gigaset_set_modem_ctrl,
45071+ .baud_rate = gigaset_baud_rate,
45072+ .set_line_ctrl = gigaset_set_line_ctrl,
45073+ .send_skb = gigaset_m10x_send_skb,
45074+ .handle_input = gigaset_m10x_input,
45075 };
45076
45077 /*
45078diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
45079index 4d9b195..455075c 100644
45080--- a/drivers/isdn/hardware/avm/b1.c
45081+++ b/drivers/isdn/hardware/avm/b1.c
45082@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
45083 }
45084 if (left) {
45085 if (t4file->user) {
45086- if (copy_from_user(buf, dp, left))
45087+ if (left > sizeof buf || copy_from_user(buf, dp, left))
45088 return -EFAULT;
45089 } else {
45090 memcpy(buf, dp, left);
45091@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
45092 }
45093 if (left) {
45094 if (config->user) {
45095- if (copy_from_user(buf, dp, left))
45096+ if (left > sizeof buf || copy_from_user(buf, dp, left))
45097 return -EFAULT;
45098 } else {
45099 memcpy(buf, dp, left);
45100diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
45101index 9b856e1..fa03c92 100644
45102--- a/drivers/isdn/i4l/isdn_common.c
45103+++ b/drivers/isdn/i4l/isdn_common.c
45104@@ -1654,6 +1654,8 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
45105 } else
45106 return -EINVAL;
45107 case IIOCDBGVAR:
45108+ if (!capable(CAP_SYS_RAWIO))
45109+ return -EPERM;
45110 if (arg) {
45111 if (copy_to_user(argp, &dev, sizeof(ulong)))
45112 return -EFAULT;
45113diff --git a/drivers/isdn/i4l/isdn_concap.c b/drivers/isdn/i4l/isdn_concap.c
45114index 91d5730..336523e 100644
45115--- a/drivers/isdn/i4l/isdn_concap.c
45116+++ b/drivers/isdn/i4l/isdn_concap.c
45117@@ -80,9 +80,9 @@ static int isdn_concap_dl_disconn_req(struct concap_proto *concap)
45118 }
45119
45120 struct concap_device_ops isdn_concap_reliable_dl_dops = {
45121- &isdn_concap_dl_data_req,
45122- &isdn_concap_dl_connect_req,
45123- &isdn_concap_dl_disconn_req
45124+ .data_req = &isdn_concap_dl_data_req,
45125+ .connect_req = &isdn_concap_dl_connect_req,
45126+ .disconn_req = &isdn_concap_dl_disconn_req
45127 };
45128
45129 /* The following should better go into a dedicated source file such that
45130diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
45131index bc91261..2ef7e36 100644
45132--- a/drivers/isdn/i4l/isdn_tty.c
45133+++ b/drivers/isdn/i4l/isdn_tty.c
45134@@ -1503,9 +1503,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
45135
45136 #ifdef ISDN_DEBUG_MODEM_OPEN
45137 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
45138- port->count);
45139+ atomic_read(&port->count));
45140 #endif
45141- port->count++;
45142+ atomic_inc(&port->count);
45143 port->tty = tty;
45144 /*
45145 * Start up serial port
45146@@ -1549,7 +1549,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
45147 #endif
45148 return;
45149 }
45150- if ((tty->count == 1) && (port->count != 1)) {
45151+ if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
45152 /*
45153 * Uh, oh. tty->count is 1, which means that the tty
45154 * structure will be freed. Info->count should always
45155@@ -1558,15 +1558,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
45156 * serial port won't be shutdown.
45157 */
45158 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
45159- "info->count is %d\n", port->count);
45160- port->count = 1;
45161+ "info->count is %d\n", atomic_read(&port->count));
45162+ atomic_set(&port->count, 1);
45163 }
45164- if (--port->count < 0) {
45165+ if (atomic_dec_return(&port->count) < 0) {
45166 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
45167- info->line, port->count);
45168- port->count = 0;
45169+ info->line, atomic_read(&port->count));
45170+ atomic_set(&port->count, 0);
45171 }
45172- if (port->count) {
45173+ if (atomic_read(&port->count)) {
45174 #ifdef ISDN_DEBUG_MODEM_OPEN
45175 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
45176 #endif
45177@@ -1620,7 +1620,7 @@ isdn_tty_hangup(struct tty_struct *tty)
45178 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
45179 return;
45180 isdn_tty_shutdown(info);
45181- port->count = 0;
45182+ atomic_set(&port->count, 0);
45183 port->flags &= ~ASYNC_NORMAL_ACTIVE;
45184 port->tty = NULL;
45185 wake_up_interruptible(&port->open_wait);
45186@@ -1965,7 +1965,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
45187 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
45188 modem_info *info = &dev->mdm.info[i];
45189
45190- if (info->port.count == 0)
45191+ if (atomic_read(&info->port.count) == 0)
45192 continue;
45193 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
45194 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
45195diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
45196index e2d4e58..40cd045 100644
45197--- a/drivers/isdn/i4l/isdn_x25iface.c
45198+++ b/drivers/isdn/i4l/isdn_x25iface.c
45199@@ -53,14 +53,14 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *);
45200
45201
45202 static struct concap_proto_ops ix25_pops = {
45203- &isdn_x25iface_proto_new,
45204- &isdn_x25iface_proto_del,
45205- &isdn_x25iface_proto_restart,
45206- &isdn_x25iface_proto_close,
45207- &isdn_x25iface_xmit,
45208- &isdn_x25iface_receive,
45209- &isdn_x25iface_connect_ind,
45210- &isdn_x25iface_disconn_ind
45211+ .proto_new = &isdn_x25iface_proto_new,
45212+ .proto_del = &isdn_x25iface_proto_del,
45213+ .restart = &isdn_x25iface_proto_restart,
45214+ .close = &isdn_x25iface_proto_close,
45215+ .encap_and_xmit = &isdn_x25iface_xmit,
45216+ .data_ind = &isdn_x25iface_receive,
45217+ .connect_ind = &isdn_x25iface_connect_ind,
45218+ .disconn_ind = &isdn_x25iface_disconn_ind
45219 };
45220
45221 /* error message helper function */
45222diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
45223index 358a574..b4987ea 100644
45224--- a/drivers/isdn/icn/icn.c
45225+++ b/drivers/isdn/icn/icn.c
45226@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
45227 if (count > len)
45228 count = len;
45229 if (user) {
45230- if (copy_from_user(msg, buf, count))
45231+ if (count > sizeof msg || copy_from_user(msg, buf, count))
45232 return -EFAULT;
45233 } else
45234 memcpy(msg, buf, count);
45235diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
45236index 87f7dff..7300125 100644
45237--- a/drivers/isdn/mISDN/dsp_cmx.c
45238+++ b/drivers/isdn/mISDN/dsp_cmx.c
45239@@ -1625,7 +1625,7 @@ unsigned long dsp_spl_jiffies; /* calculate the next time to fire */
45240 static u16 dsp_count; /* last sample count */
45241 static int dsp_count_valid; /* if we have last sample count */
45242
45243-void
45244+void __intentional_overflow(-1)
45245 dsp_cmx_send(void *arg)
45246 {
45247 struct dsp_conf *conf;
45248diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
45249index 7dc93aa..8272379 100644
45250--- a/drivers/lguest/core.c
45251+++ b/drivers/lguest/core.c
45252@@ -96,9 +96,17 @@ static __init int map_switcher(void)
45253 * The end address needs +1 because __get_vm_area allocates an
45254 * extra guard page, so we need space for that.
45255 */
45256+
45257+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
45258+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
45259+ VM_ALLOC | VM_KERNEXEC, switcher_addr, switcher_addr
45260+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
45261+#else
45262 switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
45263 VM_ALLOC, switcher_addr, switcher_addr
45264 + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
45265+#endif
45266+
45267 if (!switcher_vma) {
45268 err = -ENOMEM;
45269 printk("lguest: could not map switcher pages high\n");
45270@@ -121,7 +129,7 @@ static __init int map_switcher(void)
45271 * Now the Switcher is mapped at the right address, we can't fail!
45272 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
45273 */
45274- memcpy(switcher_vma->addr, start_switcher_text,
45275+ memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
45276 end_switcher_text - start_switcher_text);
45277
45278 printk(KERN_INFO "lguest: mapped switcher at %p\n",
45279diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
45280index e3abebc9..6a35328 100644
45281--- a/drivers/lguest/page_tables.c
45282+++ b/drivers/lguest/page_tables.c
45283@@ -585,7 +585,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
45284 /*:*/
45285
45286 #ifdef CONFIG_X86_PAE
45287-static void release_pmd(pmd_t *spmd)
45288+static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
45289 {
45290 /* If the entry's not present, there's nothing to release. */
45291 if (pmd_flags(*spmd) & _PAGE_PRESENT) {
45292diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
45293index 30f2aef..391c748 100644
45294--- a/drivers/lguest/x86/core.c
45295+++ b/drivers/lguest/x86/core.c
45296@@ -60,7 +60,7 @@ static struct {
45297 /* Offset from where switcher.S was compiled to where we've copied it */
45298 static unsigned long switcher_offset(void)
45299 {
45300- return switcher_addr - (unsigned long)start_switcher_text;
45301+ return switcher_addr - (unsigned long)ktla_ktva(start_switcher_text);
45302 }
45303
45304 /* This cpu's struct lguest_pages (after the Switcher text page) */
45305@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
45306 * These copies are pretty cheap, so we do them unconditionally: */
45307 /* Save the current Host top-level page directory.
45308 */
45309+
45310+#ifdef CONFIG_PAX_PER_CPU_PGD
45311+ pages->state.host_cr3 = read_cr3();
45312+#else
45313 pages->state.host_cr3 = __pa(current->mm->pgd);
45314+#endif
45315+
45316 /*
45317 * Set up the Guest's page tables to see this CPU's pages (and no
45318 * other CPU's pages).
45319@@ -494,7 +500,7 @@ void __init lguest_arch_host_init(void)
45320 * compiled-in switcher code and the high-mapped copy we just made.
45321 */
45322 for (i = 0; i < IDT_ENTRIES; i++)
45323- default_idt_entries[i] += switcher_offset();
45324+ default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
45325
45326 /*
45327 * Set up the Switcher's per-cpu areas.
45328@@ -577,7 +583,7 @@ void __init lguest_arch_host_init(void)
45329 * it will be undisturbed when we switch. To change %cs and jump we
45330 * need this structure to feed to Intel's "lcall" instruction.
45331 */
45332- lguest_entry.offset = (long)switch_to_guest + switcher_offset();
45333+ lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
45334 lguest_entry.segment = LGUEST_CS;
45335
45336 /*
45337diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
45338index 40634b0..4f5855e 100644
45339--- a/drivers/lguest/x86/switcher_32.S
45340+++ b/drivers/lguest/x86/switcher_32.S
45341@@ -87,6 +87,7 @@
45342 #include <asm/page.h>
45343 #include <asm/segment.h>
45344 #include <asm/lguest.h>
45345+#include <asm/processor-flags.h>
45346
45347 // We mark the start of the code to copy
45348 // It's placed in .text tho it's never run here
45349@@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
45350 // Changes type when we load it: damn Intel!
45351 // For after we switch over our page tables
45352 // That entry will be read-only: we'd crash.
45353+
45354+#ifdef CONFIG_PAX_KERNEXEC
45355+ mov %cr0, %edx
45356+ xor $X86_CR0_WP, %edx
45357+ mov %edx, %cr0
45358+#endif
45359+
45360 movl $(GDT_ENTRY_TSS*8), %edx
45361 ltr %dx
45362
45363@@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
45364 // Let's clear it again for our return.
45365 // The GDT descriptor of the Host
45366 // Points to the table after two "size" bytes
45367- movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
45368+ movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
45369 // Clear "used" from type field (byte 5, bit 2)
45370- andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
45371+ andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
45372+
45373+#ifdef CONFIG_PAX_KERNEXEC
45374+ mov %cr0, %eax
45375+ xor $X86_CR0_WP, %eax
45376+ mov %eax, %cr0
45377+#endif
45378
45379 // Once our page table's switched, the Guest is live!
45380 // The Host fades as we run this final step.
45381@@ -295,13 +309,12 @@ deliver_to_host:
45382 // I consulted gcc, and it gave
45383 // These instructions, which I gladly credit:
45384 leal (%edx,%ebx,8), %eax
45385- movzwl (%eax),%edx
45386- movl 4(%eax), %eax
45387- xorw %ax, %ax
45388- orl %eax, %edx
45389+ movl 4(%eax), %edx
45390+ movw (%eax), %dx
45391 // Now the address of the handler's in %edx
45392 // We call it now: its "iret" drops us home.
45393- jmp *%edx
45394+ ljmp $__KERNEL_CS, $1f
45395+1: jmp *%edx
45396
45397 // Every interrupt can come to us here
45398 // But we must truly tell each apart.
45399diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
45400index a08e3ee..df8ade2 100644
45401--- a/drivers/md/bcache/closure.h
45402+++ b/drivers/md/bcache/closure.h
45403@@ -238,7 +238,7 @@ static inline void closure_set_stopped(struct closure *cl)
45404 static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
45405 struct workqueue_struct *wq)
45406 {
45407- BUG_ON(object_is_on_stack(cl));
45408+ BUG_ON(object_starts_on_stack(cl));
45409 closure_set_ip(cl);
45410 cl->fn = fn;
45411 cl->wq = wq;
45412diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
45413index 3a57679..c58cdaf 100644
45414--- a/drivers/md/bitmap.c
45415+++ b/drivers/md/bitmap.c
45416@@ -1786,7 +1786,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
45417 chunk_kb ? "KB" : "B");
45418 if (bitmap->storage.file) {
45419 seq_printf(seq, ", file: ");
45420- seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
45421+ seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
45422 }
45423
45424 seq_printf(seq, "\n");
45425diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
45426index c8a18e4..0ab43e5 100644
45427--- a/drivers/md/dm-ioctl.c
45428+++ b/drivers/md/dm-ioctl.c
45429@@ -1772,7 +1772,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
45430 cmd == DM_LIST_VERSIONS_CMD)
45431 return 0;
45432
45433- if ((cmd == DM_DEV_CREATE_CMD)) {
45434+ if (cmd == DM_DEV_CREATE_CMD) {
45435 if (!*param->name) {
45436 DMWARN("name not supplied when creating device");
45437 return -EINVAL;
45438diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
45439index 089d627..ef7352e 100644
45440--- a/drivers/md/dm-raid1.c
45441+++ b/drivers/md/dm-raid1.c
45442@@ -40,7 +40,7 @@ enum dm_raid1_error {
45443
45444 struct mirror {
45445 struct mirror_set *ms;
45446- atomic_t error_count;
45447+ atomic_unchecked_t error_count;
45448 unsigned long error_type;
45449 struct dm_dev *dev;
45450 sector_t offset;
45451@@ -186,7 +186,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
45452 struct mirror *m;
45453
45454 for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
45455- if (!atomic_read(&m->error_count))
45456+ if (!atomic_read_unchecked(&m->error_count))
45457 return m;
45458
45459 return NULL;
45460@@ -218,7 +218,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
45461 * simple way to tell if a device has encountered
45462 * errors.
45463 */
45464- atomic_inc(&m->error_count);
45465+ atomic_inc_unchecked(&m->error_count);
45466
45467 if (test_and_set_bit(error_type, &m->error_type))
45468 return;
45469@@ -409,7 +409,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
45470 struct mirror *m = get_default_mirror(ms);
45471
45472 do {
45473- if (likely(!atomic_read(&m->error_count)))
45474+ if (likely(!atomic_read_unchecked(&m->error_count)))
45475 return m;
45476
45477 if (m-- == ms->mirror)
45478@@ -423,7 +423,7 @@ static int default_ok(struct mirror *m)
45479 {
45480 struct mirror *default_mirror = get_default_mirror(m->ms);
45481
45482- return !atomic_read(&default_mirror->error_count);
45483+ return !atomic_read_unchecked(&default_mirror->error_count);
45484 }
45485
45486 static int mirror_available(struct mirror_set *ms, struct bio *bio)
45487@@ -560,7 +560,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
45488 */
45489 if (likely(region_in_sync(ms, region, 1)))
45490 m = choose_mirror(ms, bio->bi_iter.bi_sector);
45491- else if (m && atomic_read(&m->error_count))
45492+ else if (m && atomic_read_unchecked(&m->error_count))
45493 m = NULL;
45494
45495 if (likely(m))
45496@@ -936,7 +936,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
45497 }
45498
45499 ms->mirror[mirror].ms = ms;
45500- atomic_set(&(ms->mirror[mirror].error_count), 0);
45501+ atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
45502 ms->mirror[mirror].error_type = 0;
45503 ms->mirror[mirror].offset = offset;
45504
45505@@ -1351,7 +1351,7 @@ static void mirror_resume(struct dm_target *ti)
45506 */
45507 static char device_status_char(struct mirror *m)
45508 {
45509- if (!atomic_read(&(m->error_count)))
45510+ if (!atomic_read_unchecked(&(m->error_count)))
45511 return 'A';
45512
45513 return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
45514diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
45515index f478a4c..4b8e5ef 100644
45516--- a/drivers/md/dm-stats.c
45517+++ b/drivers/md/dm-stats.c
45518@@ -382,7 +382,7 @@ do_sync_free:
45519 synchronize_rcu_expedited();
45520 dm_stat_free(&s->rcu_head);
45521 } else {
45522- ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
45523+ ACCESS_ONCE_RW(dm_stat_need_rcu_barrier) = 1;
45524 call_rcu(&s->rcu_head, dm_stat_free);
45525 }
45526 return 0;
45527@@ -554,8 +554,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
45528 ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
45529 (ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
45530 ));
45531- ACCESS_ONCE(last->last_sector) = end_sector;
45532- ACCESS_ONCE(last->last_rw) = bi_rw;
45533+ ACCESS_ONCE_RW(last->last_sector) = end_sector;
45534+ ACCESS_ONCE_RW(last->last_rw) = bi_rw;
45535 }
45536
45537 rcu_read_lock();
45538diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
45539index f8b37d4..5c5cafd 100644
45540--- a/drivers/md/dm-stripe.c
45541+++ b/drivers/md/dm-stripe.c
45542@@ -21,7 +21,7 @@ struct stripe {
45543 struct dm_dev *dev;
45544 sector_t physical_start;
45545
45546- atomic_t error_count;
45547+ atomic_unchecked_t error_count;
45548 };
45549
45550 struct stripe_c {
45551@@ -188,7 +188,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
45552 kfree(sc);
45553 return r;
45554 }
45555- atomic_set(&(sc->stripe[i].error_count), 0);
45556+ atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
45557 }
45558
45559 ti->private = sc;
45560@@ -332,7 +332,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
45561 DMEMIT("%d ", sc->stripes);
45562 for (i = 0; i < sc->stripes; i++) {
45563 DMEMIT("%s ", sc->stripe[i].dev->name);
45564- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
45565+ buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
45566 'D' : 'A';
45567 }
45568 buffer[i] = '\0';
45569@@ -377,8 +377,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
45570 */
45571 for (i = 0; i < sc->stripes; i++)
45572 if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
45573- atomic_inc(&(sc->stripe[i].error_count));
45574- if (atomic_read(&(sc->stripe[i].error_count)) <
45575+ atomic_inc_unchecked(&(sc->stripe[i].error_count));
45576+ if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
45577 DM_IO_ERROR_THRESHOLD)
45578 schedule_work(&sc->trigger_event);
45579 }
45580diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
45581index 6554d91..b0221c2 100644
45582--- a/drivers/md/dm-table.c
45583+++ b/drivers/md/dm-table.c
45584@@ -303,7 +303,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
45585 if (!dev_size)
45586 return 0;
45587
45588- if ((start >= dev_size) || (start + len > dev_size)) {
45589+ if ((start >= dev_size) || (len > dev_size - start)) {
45590 DMWARN("%s: %s too small for target: "
45591 "start=%llu, len=%llu, dev_size=%llu",
45592 dm_device_name(ti->table->md), bdevname(bdev, b),
45593diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
45594index 79f6941..b33b4e0 100644
45595--- a/drivers/md/dm-thin-metadata.c
45596+++ b/drivers/md/dm-thin-metadata.c
45597@@ -404,7 +404,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
45598 {
45599 pmd->info.tm = pmd->tm;
45600 pmd->info.levels = 2;
45601- pmd->info.value_type.context = pmd->data_sm;
45602+ pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
45603 pmd->info.value_type.size = sizeof(__le64);
45604 pmd->info.value_type.inc = data_block_inc;
45605 pmd->info.value_type.dec = data_block_dec;
45606@@ -423,7 +423,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
45607
45608 pmd->bl_info.tm = pmd->tm;
45609 pmd->bl_info.levels = 1;
45610- pmd->bl_info.value_type.context = pmd->data_sm;
45611+ pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
45612 pmd->bl_info.value_type.size = sizeof(__le64);
45613 pmd->bl_info.value_type.inc = data_block_inc;
45614 pmd->bl_info.value_type.dec = data_block_dec;
45615diff --git a/drivers/md/dm.c b/drivers/md/dm.c
45616index 8001fe9..abdd0d0 100644
45617--- a/drivers/md/dm.c
45618+++ b/drivers/md/dm.c
45619@@ -188,9 +188,9 @@ struct mapped_device {
45620 /*
45621 * Event handling.
45622 */
45623- atomic_t event_nr;
45624+ atomic_unchecked_t event_nr;
45625 wait_queue_head_t eventq;
45626- atomic_t uevent_seq;
45627+ atomic_unchecked_t uevent_seq;
45628 struct list_head uevent_list;
45629 spinlock_t uevent_lock; /* Protect access to uevent_list */
45630
45631@@ -2163,8 +2163,8 @@ static struct mapped_device *alloc_dev(int minor)
45632 spin_lock_init(&md->deferred_lock);
45633 atomic_set(&md->holders, 1);
45634 atomic_set(&md->open_count, 0);
45635- atomic_set(&md->event_nr, 0);
45636- atomic_set(&md->uevent_seq, 0);
45637+ atomic_set_unchecked(&md->event_nr, 0);
45638+ atomic_set_unchecked(&md->uevent_seq, 0);
45639 INIT_LIST_HEAD(&md->uevent_list);
45640 INIT_LIST_HEAD(&md->table_devices);
45641 spin_lock_init(&md->uevent_lock);
45642@@ -2329,7 +2329,7 @@ static void event_callback(void *context)
45643
45644 dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
45645
45646- atomic_inc(&md->event_nr);
45647+ atomic_inc_unchecked(&md->event_nr);
45648 wake_up(&md->eventq);
45649 }
45650
45651@@ -3175,18 +3175,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
45652
45653 uint32_t dm_next_uevent_seq(struct mapped_device *md)
45654 {
45655- return atomic_add_return(1, &md->uevent_seq);
45656+ return atomic_add_return_unchecked(1, &md->uevent_seq);
45657 }
45658
45659 uint32_t dm_get_event_nr(struct mapped_device *md)
45660 {
45661- return atomic_read(&md->event_nr);
45662+ return atomic_read_unchecked(&md->event_nr);
45663 }
45664
45665 int dm_wait_event(struct mapped_device *md, int event_nr)
45666 {
45667 return wait_event_interruptible(md->eventq,
45668- (event_nr != atomic_read(&md->event_nr)));
45669+ (event_nr != atomic_read_unchecked(&md->event_nr)));
45670 }
45671
45672 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
45673diff --git a/drivers/md/md.c b/drivers/md/md.c
45674index e47d1dd..ebc3480 100644
45675--- a/drivers/md/md.c
45676+++ b/drivers/md/md.c
45677@@ -191,10 +191,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
45678 * start build, activate spare
45679 */
45680 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
45681-static atomic_t md_event_count;
45682+static atomic_unchecked_t md_event_count;
45683 void md_new_event(struct mddev *mddev)
45684 {
45685- atomic_inc(&md_event_count);
45686+ atomic_inc_unchecked(&md_event_count);
45687 wake_up(&md_event_waiters);
45688 }
45689 EXPORT_SYMBOL_GPL(md_new_event);
45690@@ -204,7 +204,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
45691 */
45692 static void md_new_event_inintr(struct mddev *mddev)
45693 {
45694- atomic_inc(&md_event_count);
45695+ atomic_inc_unchecked(&md_event_count);
45696 wake_up(&md_event_waiters);
45697 }
45698
45699@@ -1442,7 +1442,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
45700 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
45701 (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
45702 rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
45703- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
45704+ atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
45705
45706 rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
45707 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
45708@@ -1693,7 +1693,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
45709 else
45710 sb->resync_offset = cpu_to_le64(0);
45711
45712- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
45713+ sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
45714
45715 sb->raid_disks = cpu_to_le32(mddev->raid_disks);
45716 sb->size = cpu_to_le64(mddev->dev_sectors);
45717@@ -2564,7 +2564,7 @@ __ATTR_PREALLOC(state, S_IRUGO|S_IWUSR, state_show, state_store);
45718 static ssize_t
45719 errors_show(struct md_rdev *rdev, char *page)
45720 {
45721- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
45722+ return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
45723 }
45724
45725 static ssize_t
45726@@ -2573,7 +2573,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
45727 char *e;
45728 unsigned long n = simple_strtoul(buf, &e, 10);
45729 if (*buf && (*e == 0 || *e == '\n')) {
45730- atomic_set(&rdev->corrected_errors, n);
45731+ atomic_set_unchecked(&rdev->corrected_errors, n);
45732 return len;
45733 }
45734 return -EINVAL;
45735@@ -3009,8 +3009,8 @@ int md_rdev_init(struct md_rdev *rdev)
45736 rdev->sb_loaded = 0;
45737 rdev->bb_page = NULL;
45738 atomic_set(&rdev->nr_pending, 0);
45739- atomic_set(&rdev->read_errors, 0);
45740- atomic_set(&rdev->corrected_errors, 0);
45741+ atomic_set_unchecked(&rdev->read_errors, 0);
45742+ atomic_set_unchecked(&rdev->corrected_errors, 0);
45743
45744 INIT_LIST_HEAD(&rdev->same_set);
45745 init_waitqueue_head(&rdev->blocked_wait);
45746@@ -7083,7 +7083,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
45747
45748 spin_unlock(&pers_lock);
45749 seq_printf(seq, "\n");
45750- seq->poll_event = atomic_read(&md_event_count);
45751+ seq->poll_event = atomic_read_unchecked(&md_event_count);
45752 return 0;
45753 }
45754 if (v == (void*)2) {
45755@@ -7186,7 +7186,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
45756 return error;
45757
45758 seq = file->private_data;
45759- seq->poll_event = atomic_read(&md_event_count);
45760+ seq->poll_event = atomic_read_unchecked(&md_event_count);
45761 return error;
45762 }
45763
45764@@ -7203,7 +7203,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
45765 /* always allow read */
45766 mask = POLLIN | POLLRDNORM;
45767
45768- if (seq->poll_event != atomic_read(&md_event_count))
45769+ if (seq->poll_event != atomic_read_unchecked(&md_event_count))
45770 mask |= POLLERR | POLLPRI;
45771 return mask;
45772 }
45773@@ -7250,7 +7250,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
45774 struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
45775 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
45776 (int)part_stat_read(&disk->part0, sectors[1]) -
45777- atomic_read(&disk->sync_io);
45778+ atomic_read_unchecked(&disk->sync_io);
45779 /* sync IO will cause sync_io to increase before the disk_stats
45780 * as sync_io is counted when a request starts, and
45781 * disk_stats is counted when it completes.
45782diff --git a/drivers/md/md.h b/drivers/md/md.h
45783index 318ca8f..31e4478 100644
45784--- a/drivers/md/md.h
45785+++ b/drivers/md/md.h
45786@@ -94,13 +94,13 @@ struct md_rdev {
45787 * only maintained for arrays that
45788 * support hot removal
45789 */
45790- atomic_t read_errors; /* number of consecutive read errors that
45791+ atomic_unchecked_t read_errors; /* number of consecutive read errors that
45792 * we have tried to ignore.
45793 */
45794 struct timespec last_read_error; /* monotonic time since our
45795 * last read error
45796 */
45797- atomic_t corrected_errors; /* number of corrected read errors,
45798+ atomic_unchecked_t corrected_errors; /* number of corrected read errors,
45799 * for reporting to userspace and storing
45800 * in superblock.
45801 */
45802@@ -476,7 +476,7 @@ extern void mddev_unlock(struct mddev *mddev);
45803
45804 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
45805 {
45806- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
45807+ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
45808 }
45809
45810 struct md_personality
45811diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
45812index e8a9042..35bd145 100644
45813--- a/drivers/md/persistent-data/dm-space-map-metadata.c
45814+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
45815@@ -683,7 +683,7 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
45816 * Flick into a mode where all blocks get allocated in the new area.
45817 */
45818 smm->begin = old_len;
45819- memcpy(sm, &bootstrap_ops, sizeof(*sm));
45820+ memcpy((void *)sm, &bootstrap_ops, sizeof(*sm));
45821
45822 /*
45823 * Extend.
45824@@ -714,7 +714,7 @@ out:
45825 /*
45826 * Switch back to normal behaviour.
45827 */
45828- memcpy(sm, &ops, sizeof(*sm));
45829+ memcpy((void *)sm, &ops, sizeof(*sm));
45830 return r;
45831 }
45832
45833diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
45834index 3e6d115..ffecdeb 100644
45835--- a/drivers/md/persistent-data/dm-space-map.h
45836+++ b/drivers/md/persistent-data/dm-space-map.h
45837@@ -71,6 +71,7 @@ struct dm_space_map {
45838 dm_sm_threshold_fn fn,
45839 void *context);
45840 };
45841+typedef struct dm_space_map __no_const dm_space_map_no_const;
45842
45843 /*----------------------------------------------------------------*/
45844
45845diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
45846index 3b5d7f7..903391c 100644
45847--- a/drivers/md/raid0.c
45848+++ b/drivers/md/raid0.c
45849@@ -517,6 +517,9 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
45850 ? (sector & (chunk_sects-1))
45851 : sector_div(sector, chunk_sects));
45852
45853+ /* Restore due to sector_div */
45854+ sector = bio->bi_iter.bi_sector;
45855+
45856 if (sectors < bio_sectors(bio)) {
45857 split = bio_split(bio, sectors, GFP_NOIO, fs_bio_set);
45858 bio_chain(split, bio);
45859@@ -524,7 +527,6 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
45860 split = bio;
45861 }
45862
45863- sector = bio->bi_iter.bi_sector;
45864 zone = find_zone(mddev->private, &sector);
45865 tmp_dev = map_sector(mddev, zone, sector, &sector);
45866 split->bi_bdev = tmp_dev->bdev;
45867diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
45868index d34e238..34f8d98 100644
45869--- a/drivers/md/raid1.c
45870+++ b/drivers/md/raid1.c
45871@@ -1922,7 +1922,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
45872 if (r1_sync_page_io(rdev, sect, s,
45873 bio->bi_io_vec[idx].bv_page,
45874 READ) != 0)
45875- atomic_add(s, &rdev->corrected_errors);
45876+ atomic_add_unchecked(s, &rdev->corrected_errors);
45877 }
45878 sectors -= s;
45879 sect += s;
45880@@ -2155,7 +2155,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
45881 !test_bit(Faulty, &rdev->flags)) {
45882 if (r1_sync_page_io(rdev, sect, s,
45883 conf->tmppage, READ)) {
45884- atomic_add(s, &rdev->corrected_errors);
45885+ atomic_add_unchecked(s, &rdev->corrected_errors);
45886 printk(KERN_INFO
45887 "md/raid1:%s: read error corrected "
45888 "(%d sectors at %llu on %s)\n",
45889diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
45890index a7196c4..439f012 100644
45891--- a/drivers/md/raid10.c
45892+++ b/drivers/md/raid10.c
45893@@ -1934,7 +1934,7 @@ static void end_sync_read(struct bio *bio, int error)
45894 /* The write handler will notice the lack of
45895 * R10BIO_Uptodate and record any errors etc
45896 */
45897- atomic_add(r10_bio->sectors,
45898+ atomic_add_unchecked(r10_bio->sectors,
45899 &conf->mirrors[d].rdev->corrected_errors);
45900
45901 /* for reconstruct, we always reschedule after a read.
45902@@ -2291,7 +2291,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
45903 {
45904 struct timespec cur_time_mon;
45905 unsigned long hours_since_last;
45906- unsigned int read_errors = atomic_read(&rdev->read_errors);
45907+ unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
45908
45909 ktime_get_ts(&cur_time_mon);
45910
45911@@ -2313,9 +2313,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
45912 * overflowing the shift of read_errors by hours_since_last.
45913 */
45914 if (hours_since_last >= 8 * sizeof(read_errors))
45915- atomic_set(&rdev->read_errors, 0);
45916+ atomic_set_unchecked(&rdev->read_errors, 0);
45917 else
45918- atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
45919+ atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
45920 }
45921
45922 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
45923@@ -2369,8 +2369,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45924 return;
45925
45926 check_decay_read_errors(mddev, rdev);
45927- atomic_inc(&rdev->read_errors);
45928- if (atomic_read(&rdev->read_errors) > max_read_errors) {
45929+ atomic_inc_unchecked(&rdev->read_errors);
45930+ if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
45931 char b[BDEVNAME_SIZE];
45932 bdevname(rdev->bdev, b);
45933
45934@@ -2378,7 +2378,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45935 "md/raid10:%s: %s: Raid device exceeded "
45936 "read_error threshold [cur %d:max %d]\n",
45937 mdname(mddev), b,
45938- atomic_read(&rdev->read_errors), max_read_errors);
45939+ atomic_read_unchecked(&rdev->read_errors), max_read_errors);
45940 printk(KERN_NOTICE
45941 "md/raid10:%s: %s: Failing raid device\n",
45942 mdname(mddev), b);
45943@@ -2533,7 +2533,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45944 sect +
45945 choose_data_offset(r10_bio, rdev)),
45946 bdevname(rdev->bdev, b));
45947- atomic_add(s, &rdev->corrected_errors);
45948+ atomic_add_unchecked(s, &rdev->corrected_errors);
45949 }
45950
45951 rdev_dec_pending(rdev, mddev);
45952diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
45953index cd2f96b..3876e63 100644
45954--- a/drivers/md/raid5.c
45955+++ b/drivers/md/raid5.c
45956@@ -947,23 +947,23 @@ async_copy_data(int frombio, struct bio *bio, struct page **page,
45957 struct bio_vec bvl;
45958 struct bvec_iter iter;
45959 struct page *bio_page;
45960- int page_offset;
45961+ s64 page_offset;
45962 struct async_submit_ctl submit;
45963 enum async_tx_flags flags = 0;
45964
45965 if (bio->bi_iter.bi_sector >= sector)
45966- page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
45967+ page_offset = (s64)(bio->bi_iter.bi_sector - sector) * 512;
45968 else
45969- page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;
45970+ page_offset = (s64)(sector - bio->bi_iter.bi_sector) * -512;
45971
45972 if (frombio)
45973 flags |= ASYNC_TX_FENCE;
45974 init_async_submit(&submit, flags, tx, NULL, NULL, NULL);
45975
45976 bio_for_each_segment(bvl, bio, iter) {
45977- int len = bvl.bv_len;
45978- int clen;
45979- int b_offset = 0;
45980+ s64 len = bvl.bv_len;
45981+ s64 clen;
45982+ s64 b_offset = 0;
45983
45984 if (page_offset < 0) {
45985 b_offset = -page_offset;
45986@@ -1727,6 +1727,10 @@ static int grow_one_stripe(struct r5conf *conf, int hash)
45987 return 1;
45988 }
45989
45990+#ifdef CONFIG_GRKERNSEC_HIDESYM
45991+static atomic_unchecked_t raid5_cache_id = ATOMIC_INIT(0);
45992+#endif
45993+
45994 static int grow_stripes(struct r5conf *conf, int num)
45995 {
45996 struct kmem_cache *sc;
45997@@ -1738,7 +1742,11 @@ static int grow_stripes(struct r5conf *conf, int num)
45998 "raid%d-%s", conf->level, mdname(conf->mddev));
45999 else
46000 sprintf(conf->cache_name[0],
46001+#ifdef CONFIG_GRKERNSEC_HIDESYM
46002+ "raid%d-%08lx", conf->level, atomic_inc_return_unchecked(&raid5_cache_id));
46003+#else
46004 "raid%d-%p", conf->level, conf->mddev);
46005+#endif
46006 sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
46007
46008 conf->active_name = 0;
46009@@ -2014,21 +2022,21 @@ static void raid5_end_read_request(struct bio * bi, int error)
46010 mdname(conf->mddev), STRIPE_SECTORS,
46011 (unsigned long long)s,
46012 bdevname(rdev->bdev, b));
46013- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
46014+ atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
46015 clear_bit(R5_ReadError, &sh->dev[i].flags);
46016 clear_bit(R5_ReWrite, &sh->dev[i].flags);
46017 } else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
46018 clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
46019
46020- if (atomic_read(&rdev->read_errors))
46021- atomic_set(&rdev->read_errors, 0);
46022+ if (atomic_read_unchecked(&rdev->read_errors))
46023+ atomic_set_unchecked(&rdev->read_errors, 0);
46024 } else {
46025 const char *bdn = bdevname(rdev->bdev, b);
46026 int retry = 0;
46027 int set_bad = 0;
46028
46029 clear_bit(R5_UPTODATE, &sh->dev[i].flags);
46030- atomic_inc(&rdev->read_errors);
46031+ atomic_inc_unchecked(&rdev->read_errors);
46032 if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
46033 printk_ratelimited(
46034 KERN_WARNING
46035@@ -2056,7 +2064,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
46036 mdname(conf->mddev),
46037 (unsigned long long)s,
46038 bdn);
46039- } else if (atomic_read(&rdev->read_errors)
46040+ } else if (atomic_read_unchecked(&rdev->read_errors)
46041 > conf->max_nr_stripes)
46042 printk(KERN_WARNING
46043 "md/raid:%s: Too many read errors, failing device %s.\n",
46044diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
46045index 983db75..ef9248c 100644
46046--- a/drivers/media/dvb-core/dvbdev.c
46047+++ b/drivers/media/dvb-core/dvbdev.c
46048@@ -185,7 +185,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
46049 const struct dvb_device *template, void *priv, int type)
46050 {
46051 struct dvb_device *dvbdev;
46052- struct file_operations *dvbdevfops;
46053+ file_operations_no_const *dvbdevfops;
46054 struct device *clsdev;
46055 int minor;
46056 int id;
46057diff --git a/drivers/media/dvb-frontends/af9033.h b/drivers/media/dvb-frontends/af9033.h
46058index 6ad22b6..6e90e2a 100644
46059--- a/drivers/media/dvb-frontends/af9033.h
46060+++ b/drivers/media/dvb-frontends/af9033.h
46061@@ -96,6 +96,6 @@ struct af9033_ops {
46062 int (*pid_filter_ctrl)(struct dvb_frontend *fe, int onoff);
46063 int (*pid_filter)(struct dvb_frontend *fe, int index, u16 pid,
46064 int onoff);
46065-};
46066+} __no_const;
46067
46068 #endif /* AF9033_H */
46069diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
46070index 9b6c3bb..baeb5c7 100644
46071--- a/drivers/media/dvb-frontends/dib3000.h
46072+++ b/drivers/media/dvb-frontends/dib3000.h
46073@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
46074 int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
46075 int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
46076 int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
46077-};
46078+} __no_const;
46079
46080 #if IS_ENABLED(CONFIG_DVB_DIB3000MB)
46081 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
46082diff --git a/drivers/media/dvb-frontends/dib7000p.h b/drivers/media/dvb-frontends/dib7000p.h
46083index 1fea0e9..321ce8f 100644
46084--- a/drivers/media/dvb-frontends/dib7000p.h
46085+++ b/drivers/media/dvb-frontends/dib7000p.h
46086@@ -64,7 +64,7 @@ struct dib7000p_ops {
46087 int (*get_adc_power)(struct dvb_frontend *fe);
46088 int (*slave_reset)(struct dvb_frontend *fe);
46089 struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg);
46090-};
46091+} __no_const;
46092
46093 #if IS_ENABLED(CONFIG_DVB_DIB7000P)
46094 void *dib7000p_attach(struct dib7000p_ops *ops);
46095diff --git a/drivers/media/dvb-frontends/dib8000.h b/drivers/media/dvb-frontends/dib8000.h
46096index 84cc103..5780c54 100644
46097--- a/drivers/media/dvb-frontends/dib8000.h
46098+++ b/drivers/media/dvb-frontends/dib8000.h
46099@@ -61,7 +61,7 @@ struct dib8000_ops {
46100 int (*pid_filter_ctrl)(struct dvb_frontend *fe, u8 onoff);
46101 int (*pid_filter)(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
46102 struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg);
46103-};
46104+} __no_const;
46105
46106 #if IS_ENABLED(CONFIG_DVB_DIB8000)
46107 void *dib8000_attach(struct dib8000_ops *ops);
46108diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
46109index 860c98fc..497fa25 100644
46110--- a/drivers/media/pci/cx88/cx88-video.c
46111+++ b/drivers/media/pci/cx88/cx88-video.c
46112@@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
46113
46114 /* ------------------------------------------------------------------ */
46115
46116-static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46117-static unsigned int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46118-static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46119+static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46120+static int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46121+static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46122
46123 module_param_array(video_nr, int, NULL, 0444);
46124 module_param_array(vbi_nr, int, NULL, 0444);
46125diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
46126index 802642d..5534900 100644
46127--- a/drivers/media/pci/ivtv/ivtv-driver.c
46128+++ b/drivers/media/pci/ivtv/ivtv-driver.c
46129@@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
46130 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
46131
46132 /* ivtv instance counter */
46133-static atomic_t ivtv_instance = ATOMIC_INIT(0);
46134+static atomic_unchecked_t ivtv_instance = ATOMIC_INIT(0);
46135
46136 /* Parameter declarations */
46137 static int cardtype[IVTV_MAX_CARDS];
46138diff --git a/drivers/media/pci/solo6x10/solo6x10-core.c b/drivers/media/pci/solo6x10/solo6x10-core.c
46139index 570d119..ed25830 100644
46140--- a/drivers/media/pci/solo6x10/solo6x10-core.c
46141+++ b/drivers/media/pci/solo6x10/solo6x10-core.c
46142@@ -424,7 +424,7 @@ static void solo_device_release(struct device *dev)
46143
46144 static int solo_sysfs_init(struct solo_dev *solo_dev)
46145 {
46146- struct bin_attribute *sdram_attr = &solo_dev->sdram_attr;
46147+ bin_attribute_no_const *sdram_attr = &solo_dev->sdram_attr;
46148 struct device *dev = &solo_dev->dev;
46149 const char *driver;
46150 int i;
46151diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
46152index 7ddc767..1c24361 100644
46153--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
46154+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
46155@@ -351,7 +351,7 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
46156
46157 int solo_g723_init(struct solo_dev *solo_dev)
46158 {
46159- static struct snd_device_ops ops = { NULL };
46160+ static struct snd_device_ops ops = { };
46161 struct snd_card *card;
46162 struct snd_kcontrol_new kctl;
46163 char name[32];
46164diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c b/drivers/media/pci/solo6x10/solo6x10-p2m.c
46165index 8c84846..27b4f83 100644
46166--- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
46167+++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
46168@@ -73,7 +73,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
46169
46170 /* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
46171 if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
46172- p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
46173+ p2m_id = atomic_inc_return_unchecked(&solo_dev->p2m_count) % SOLO_NR_P2M;
46174 if (p2m_id < 0)
46175 p2m_id = -p2m_id;
46176 }
46177diff --git a/drivers/media/pci/solo6x10/solo6x10.h b/drivers/media/pci/solo6x10/solo6x10.h
46178index 1ca54b0..7d7cb9a 100644
46179--- a/drivers/media/pci/solo6x10/solo6x10.h
46180+++ b/drivers/media/pci/solo6x10/solo6x10.h
46181@@ -218,7 +218,7 @@ struct solo_dev {
46182
46183 /* P2M DMA Engine */
46184 struct solo_p2m_dev p2m_dev[SOLO_NR_P2M];
46185- atomic_t p2m_count;
46186+ atomic_unchecked_t p2m_count;
46187 int p2m_jiffies;
46188 unsigned int p2m_timeouts;
46189
46190diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
46191index c135165..dc69499 100644
46192--- a/drivers/media/pci/tw68/tw68-core.c
46193+++ b/drivers/media/pci/tw68/tw68-core.c
46194@@ -60,7 +60,7 @@ static unsigned int card[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
46195 module_param_array(card, int, NULL, 0444);
46196 MODULE_PARM_DESC(card, "card type");
46197
46198-static atomic_t tw68_instance = ATOMIC_INIT(0);
46199+static atomic_unchecked_t tw68_instance = ATOMIC_INIT(0);
46200
46201 /* ------------------------------------------------------------------ */
46202
46203diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
46204index ba2d8f9..1566684 100644
46205--- a/drivers/media/platform/omap/omap_vout.c
46206+++ b/drivers/media/platform/omap/omap_vout.c
46207@@ -63,7 +63,6 @@ enum omap_vout_channels {
46208 OMAP_VIDEO2,
46209 };
46210
46211-static struct videobuf_queue_ops video_vbq_ops;
46212 /* Variables configurable through module params*/
46213 static u32 video1_numbuffers = 3;
46214 static u32 video2_numbuffers = 3;
46215@@ -1012,6 +1011,12 @@ static int omap_vout_open(struct file *file)
46216 {
46217 struct videobuf_queue *q;
46218 struct omap_vout_device *vout = NULL;
46219+ static struct videobuf_queue_ops video_vbq_ops = {
46220+ .buf_setup = omap_vout_buffer_setup,
46221+ .buf_prepare = omap_vout_buffer_prepare,
46222+ .buf_release = omap_vout_buffer_release,
46223+ .buf_queue = omap_vout_buffer_queue,
46224+ };
46225
46226 vout = video_drvdata(file);
46227 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
46228@@ -1029,10 +1034,6 @@ static int omap_vout_open(struct file *file)
46229 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
46230
46231 q = &vout->vbq;
46232- video_vbq_ops.buf_setup = omap_vout_buffer_setup;
46233- video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
46234- video_vbq_ops.buf_release = omap_vout_buffer_release;
46235- video_vbq_ops.buf_queue = omap_vout_buffer_queue;
46236 spin_lock_init(&vout->vbq_lock);
46237
46238 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
46239diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
46240index fb2acc5..a2fcbdc4 100644
46241--- a/drivers/media/platform/s5p-tv/mixer.h
46242+++ b/drivers/media/platform/s5p-tv/mixer.h
46243@@ -156,7 +156,7 @@ struct mxr_layer {
46244 /** layer index (unique identifier) */
46245 int idx;
46246 /** callbacks for layer methods */
46247- struct mxr_layer_ops ops;
46248+ struct mxr_layer_ops *ops;
46249 /** format array */
46250 const struct mxr_format **fmt_array;
46251 /** size of format array */
46252diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46253index 74344c7..a39e70e 100644
46254--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46255+++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46256@@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
46257 {
46258 struct mxr_layer *layer;
46259 int ret;
46260- struct mxr_layer_ops ops = {
46261+ static struct mxr_layer_ops ops = {
46262 .release = mxr_graph_layer_release,
46263 .buffer_set = mxr_graph_buffer_set,
46264 .stream_set = mxr_graph_stream_set,
46265diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
46266index b713403..53cb5ad 100644
46267--- a/drivers/media/platform/s5p-tv/mixer_reg.c
46268+++ b/drivers/media/platform/s5p-tv/mixer_reg.c
46269@@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
46270 layer->update_buf = next;
46271 }
46272
46273- layer->ops.buffer_set(layer, layer->update_buf);
46274+ layer->ops->buffer_set(layer, layer->update_buf);
46275
46276 if (done && done != layer->shadow_buf)
46277 vb2_buffer_done(&done->vb, VB2_BUF_STATE_DONE);
46278diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
46279index 72d4f2e..4b2ea0d 100644
46280--- a/drivers/media/platform/s5p-tv/mixer_video.c
46281+++ b/drivers/media/platform/s5p-tv/mixer_video.c
46282@@ -210,7 +210,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
46283 layer->geo.src.height = layer->geo.src.full_height;
46284
46285 mxr_geometry_dump(mdev, &layer->geo);
46286- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46287+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46288 mxr_geometry_dump(mdev, &layer->geo);
46289 }
46290
46291@@ -228,7 +228,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
46292 layer->geo.dst.full_width = mbus_fmt.width;
46293 layer->geo.dst.full_height = mbus_fmt.height;
46294 layer->geo.dst.field = mbus_fmt.field;
46295- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46296+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46297
46298 mxr_geometry_dump(mdev, &layer->geo);
46299 }
46300@@ -334,7 +334,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
46301 /* set source size to highest accepted value */
46302 geo->src.full_width = max(geo->dst.full_width, pix->width);
46303 geo->src.full_height = max(geo->dst.full_height, pix->height);
46304- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46305+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46306 mxr_geometry_dump(mdev, &layer->geo);
46307 /* set cropping to total visible screen */
46308 geo->src.width = pix->width;
46309@@ -342,12 +342,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
46310 geo->src.x_offset = 0;
46311 geo->src.y_offset = 0;
46312 /* assure consistency of geometry */
46313- layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
46314+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
46315 mxr_geometry_dump(mdev, &layer->geo);
46316 /* set full size to lowest possible value */
46317 geo->src.full_width = 0;
46318 geo->src.full_height = 0;
46319- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46320+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46321 mxr_geometry_dump(mdev, &layer->geo);
46322
46323 /* returning results */
46324@@ -474,7 +474,7 @@ static int mxr_s_selection(struct file *file, void *fh,
46325 target->width = s->r.width;
46326 target->height = s->r.height;
46327
46328- layer->ops.fix_geometry(layer, stage, s->flags);
46329+ layer->ops->fix_geometry(layer, stage, s->flags);
46330
46331 /* retrieve update selection rectangle */
46332 res.left = target->x_offset;
46333@@ -938,13 +938,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
46334 mxr_output_get(mdev);
46335
46336 mxr_layer_update_output(layer);
46337- layer->ops.format_set(layer);
46338+ layer->ops->format_set(layer);
46339 /* enabling layer in hardware */
46340 spin_lock_irqsave(&layer->enq_slock, flags);
46341 layer->state = MXR_LAYER_STREAMING;
46342 spin_unlock_irqrestore(&layer->enq_slock, flags);
46343
46344- layer->ops.stream_set(layer, MXR_ENABLE);
46345+ layer->ops->stream_set(layer, MXR_ENABLE);
46346 mxr_streamer_get(mdev);
46347
46348 return 0;
46349@@ -1014,7 +1014,7 @@ static void stop_streaming(struct vb2_queue *vq)
46350 spin_unlock_irqrestore(&layer->enq_slock, flags);
46351
46352 /* disabling layer in hardware */
46353- layer->ops.stream_set(layer, MXR_DISABLE);
46354+ layer->ops->stream_set(layer, MXR_DISABLE);
46355 /* remove one streamer */
46356 mxr_streamer_put(mdev);
46357 /* allow changes in output configuration */
46358@@ -1052,8 +1052,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
46359
46360 void mxr_layer_release(struct mxr_layer *layer)
46361 {
46362- if (layer->ops.release)
46363- layer->ops.release(layer);
46364+ if (layer->ops->release)
46365+ layer->ops->release(layer);
46366 }
46367
46368 void mxr_base_layer_release(struct mxr_layer *layer)
46369@@ -1079,7 +1079,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
46370
46371 layer->mdev = mdev;
46372 layer->idx = idx;
46373- layer->ops = *ops;
46374+ layer->ops = ops;
46375
46376 spin_lock_init(&layer->enq_slock);
46377 INIT_LIST_HEAD(&layer->enq_list);
46378diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46379index c9388c4..ce71ece 100644
46380--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46381+++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46382@@ -206,7 +206,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
46383 {
46384 struct mxr_layer *layer;
46385 int ret;
46386- struct mxr_layer_ops ops = {
46387+ static struct mxr_layer_ops ops = {
46388 .release = mxr_vp_layer_release,
46389 .buffer_set = mxr_vp_buffer_set,
46390 .stream_set = mxr_vp_stream_set,
46391diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
46392index 82affae..42833ec 100644
46393--- a/drivers/media/radio/radio-cadet.c
46394+++ b/drivers/media/radio/radio-cadet.c
46395@@ -333,6 +333,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
46396 unsigned char readbuf[RDS_BUFFER];
46397 int i = 0;
46398
46399+ if (count > RDS_BUFFER)
46400+ return -EFAULT;
46401 mutex_lock(&dev->lock);
46402 if (dev->rdsstat == 0)
46403 cadet_start_rds(dev);
46404@@ -349,8 +351,9 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
46405 readbuf[i++] = dev->rdsbuf[dev->rdsout++];
46406 mutex_unlock(&dev->lock);
46407
46408- if (i && copy_to_user(data, readbuf, i))
46409- return -EFAULT;
46410+ if (i > sizeof(readbuf) || (i && copy_to_user(data, readbuf, i)))
46411+ i = -EFAULT;
46412+
46413 return i;
46414 }
46415
46416diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
46417index 5236035..c622c74 100644
46418--- a/drivers/media/radio/radio-maxiradio.c
46419+++ b/drivers/media/radio/radio-maxiradio.c
46420@@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
46421 /* TEA5757 pin mappings */
46422 static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
46423
46424-static atomic_t maxiradio_instance = ATOMIC_INIT(0);
46425+static atomic_unchecked_t maxiradio_instance = ATOMIC_INIT(0);
46426
46427 #define PCI_VENDOR_ID_GUILLEMOT 0x5046
46428 #define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
46429diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
46430index 050b3bb..79f62b9 100644
46431--- a/drivers/media/radio/radio-shark.c
46432+++ b/drivers/media/radio/radio-shark.c
46433@@ -79,7 +79,7 @@ struct shark_device {
46434 u32 last_val;
46435 };
46436
46437-static atomic_t shark_instance = ATOMIC_INIT(0);
46438+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
46439
46440 static void shark_write_val(struct snd_tea575x *tea, u32 val)
46441 {
46442diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
46443index 8654e0d..0608a64 100644
46444--- a/drivers/media/radio/radio-shark2.c
46445+++ b/drivers/media/radio/radio-shark2.c
46446@@ -74,7 +74,7 @@ struct shark_device {
46447 u8 *transfer_buffer;
46448 };
46449
46450-static atomic_t shark_instance = ATOMIC_INIT(0);
46451+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
46452
46453 static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
46454 {
46455diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
46456index dccf586..d5db411 100644
46457--- a/drivers/media/radio/radio-si476x.c
46458+++ b/drivers/media/radio/radio-si476x.c
46459@@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
46460 struct si476x_radio *radio;
46461 struct v4l2_ctrl *ctrl;
46462
46463- static atomic_t instance = ATOMIC_INIT(0);
46464+ static atomic_unchecked_t instance = ATOMIC_INIT(0);
46465
46466 radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
46467 if (!radio)
46468diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
46469index 704397f..4d05977 100644
46470--- a/drivers/media/radio/wl128x/fmdrv_common.c
46471+++ b/drivers/media/radio/wl128x/fmdrv_common.c
46472@@ -71,7 +71,7 @@ module_param(default_rds_buf, uint, 0444);
46473 MODULE_PARM_DESC(rds_buf, "RDS buffer entries");
46474
46475 /* Radio Nr */
46476-static u32 radio_nr = -1;
46477+static int radio_nr = -1;
46478 module_param(radio_nr, int, 0444);
46479 MODULE_PARM_DESC(radio_nr, "Radio Nr");
46480
46481diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
46482index 9fd1527..8927230 100644
46483--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
46484+++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
46485@@ -50,29 +50,73 @@ static struct dvb_usb_device_properties cinergyt2_properties;
46486
46487 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
46488 {
46489- char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
46490- char result[64];
46491- return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
46492- sizeof(result), 0);
46493+ char *buf;
46494+ char *result;
46495+ int retval;
46496+
46497+ buf = kmalloc(2, GFP_KERNEL);
46498+ if (buf == NULL)
46499+ return -ENOMEM;
46500+ result = kmalloc(64, GFP_KERNEL);
46501+ if (result == NULL) {
46502+ kfree(buf);
46503+ return -ENOMEM;
46504+ }
46505+
46506+ buf[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
46507+ buf[1] = enable ? 1 : 0;
46508+
46509+ retval = dvb_usb_generic_rw(adap->dev, buf, 2, result, 64, 0);
46510+
46511+ kfree(buf);
46512+ kfree(result);
46513+ return retval;
46514 }
46515
46516 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
46517 {
46518- char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
46519- char state[3];
46520- return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
46521+ char *buf;
46522+ char *state;
46523+ int retval;
46524+
46525+ buf = kmalloc(2, GFP_KERNEL);
46526+ if (buf == NULL)
46527+ return -ENOMEM;
46528+ state = kmalloc(3, GFP_KERNEL);
46529+ if (state == NULL) {
46530+ kfree(buf);
46531+ return -ENOMEM;
46532+ }
46533+
46534+ buf[0] = CINERGYT2_EP1_SLEEP_MODE;
46535+ buf[1] = enable ? 1 : 0;
46536+
46537+ retval = dvb_usb_generic_rw(d, buf, 2, state, 3, 0);
46538+
46539+ kfree(buf);
46540+ kfree(state);
46541+ return retval;
46542 }
46543
46544 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
46545 {
46546- char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
46547- char state[3];
46548+ char *query;
46549+ char *state;
46550 int ret;
46551+ query = kmalloc(1, GFP_KERNEL);
46552+ if (query == NULL)
46553+ return -ENOMEM;
46554+ state = kmalloc(3, GFP_KERNEL);
46555+ if (state == NULL) {
46556+ kfree(query);
46557+ return -ENOMEM;
46558+ }
46559+
46560+ query[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
46561
46562 adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
46563
46564- ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
46565- sizeof(state), 0);
46566+ ret = dvb_usb_generic_rw(adap->dev, query, 1, state, 3, 0);
46567 if (ret < 0) {
46568 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
46569 "state info\n");
46570@@ -80,7 +124,8 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
46571
46572 /* Copy this pointer as we are gonna need it in the release phase */
46573 cinergyt2_usb_device = adap->dev;
46574-
46575+ kfree(query);
46576+ kfree(state);
46577 return 0;
46578 }
46579
46580@@ -141,12 +186,23 @@ static int repeatable_keys[] = {
46581 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46582 {
46583 struct cinergyt2_state *st = d->priv;
46584- u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
46585+ u8 *key, *cmd;
46586 int i;
46587
46588+ cmd = kmalloc(1, GFP_KERNEL);
46589+ if (cmd == NULL)
46590+ return -EINVAL;
46591+ key = kzalloc(5, GFP_KERNEL);
46592+ if (key == NULL) {
46593+ kfree(cmd);
46594+ return -EINVAL;
46595+ }
46596+
46597+ cmd[0] = CINERGYT2_EP1_GET_RC_EVENTS;
46598+
46599 *state = REMOTE_NO_KEY_PRESSED;
46600
46601- dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
46602+ dvb_usb_generic_rw(d, cmd, 1, key, 5, 0);
46603 if (key[4] == 0xff) {
46604 /* key repeat */
46605 st->rc_counter++;
46606@@ -157,12 +213,12 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46607 *event = d->last_event;
46608 deb_rc("repeat key, event %x\n",
46609 *event);
46610- return 0;
46611+ goto out;
46612 }
46613 }
46614 deb_rc("repeated key (non repeatable)\n");
46615 }
46616- return 0;
46617+ goto out;
46618 }
46619
46620 /* hack to pass checksum on the custom field */
46621@@ -174,6 +230,9 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46622
46623 deb_rc("key: %*ph\n", 5, key);
46624 }
46625+out:
46626+ kfree(cmd);
46627+ kfree(key);
46628 return 0;
46629 }
46630
46631diff --git a/drivers/media/usb/dvb-usb/cinergyT2-fe.c b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46632index c890fe4..f9b2ae6 100644
46633--- a/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46634+++ b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46635@@ -145,103 +145,176 @@ static int cinergyt2_fe_read_status(struct dvb_frontend *fe,
46636 fe_status_t *status)
46637 {
46638 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46639- struct dvbt_get_status_msg result;
46640- u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46641+ struct dvbt_get_status_msg *result;
46642+ u8 *cmd;
46643 int ret;
46644
46645- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&result,
46646- sizeof(result), 0);
46647+ cmd = kmalloc(1, GFP_KERNEL);
46648+ if (cmd == NULL)
46649+ return -ENOMEM;
46650+ result = kmalloc(sizeof(*result), GFP_KERNEL);
46651+ if (result == NULL) {
46652+ kfree(cmd);
46653+ return -ENOMEM;
46654+ }
46655+
46656+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46657+
46658+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)result,
46659+ sizeof(*result), 0);
46660 if (ret < 0)
46661- return ret;
46662+ goto out;
46663
46664 *status = 0;
46665
46666- if (0xffff - le16_to_cpu(result.gain) > 30)
46667+ if (0xffff - le16_to_cpu(result->gain) > 30)
46668 *status |= FE_HAS_SIGNAL;
46669- if (result.lock_bits & (1 << 6))
46670+ if (result->lock_bits & (1 << 6))
46671 *status |= FE_HAS_LOCK;
46672- if (result.lock_bits & (1 << 5))
46673+ if (result->lock_bits & (1 << 5))
46674 *status |= FE_HAS_SYNC;
46675- if (result.lock_bits & (1 << 4))
46676+ if (result->lock_bits & (1 << 4))
46677 *status |= FE_HAS_CARRIER;
46678- if (result.lock_bits & (1 << 1))
46679+ if (result->lock_bits & (1 << 1))
46680 *status |= FE_HAS_VITERBI;
46681
46682 if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
46683 (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
46684 *status &= ~FE_HAS_LOCK;
46685
46686- return 0;
46687+out:
46688+ kfree(cmd);
46689+ kfree(result);
46690+ return ret;
46691 }
46692
46693 static int cinergyt2_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
46694 {
46695 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46696- struct dvbt_get_status_msg status;
46697- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46698+ struct dvbt_get_status_msg *status;
46699+ char *cmd;
46700 int ret;
46701
46702- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46703- sizeof(status), 0);
46704+ cmd = kmalloc(1, GFP_KERNEL);
46705+ if (cmd == NULL)
46706+ return -ENOMEM;
46707+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46708+ if (status == NULL) {
46709+ kfree(cmd);
46710+ return -ENOMEM;
46711+ }
46712+
46713+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46714+
46715+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46716+ sizeof(*status), 0);
46717 if (ret < 0)
46718- return ret;
46719+ goto out;
46720
46721- *ber = le32_to_cpu(status.viterbi_error_rate);
46722+ *ber = le32_to_cpu(status->viterbi_error_rate);
46723+out:
46724+ kfree(cmd);
46725+ kfree(status);
46726 return 0;
46727 }
46728
46729 static int cinergyt2_fe_read_unc_blocks(struct dvb_frontend *fe, u32 *unc)
46730 {
46731 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46732- struct dvbt_get_status_msg status;
46733- u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46734+ struct dvbt_get_status_msg *status;
46735+ u8 *cmd;
46736 int ret;
46737
46738- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&status,
46739- sizeof(status), 0);
46740+ cmd = kmalloc(1, GFP_KERNEL);
46741+ if (cmd == NULL)
46742+ return -ENOMEM;
46743+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46744+ if (status == NULL) {
46745+ kfree(cmd);
46746+ return -ENOMEM;
46747+ }
46748+
46749+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46750+
46751+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)status,
46752+ sizeof(*status), 0);
46753 if (ret < 0) {
46754 err("cinergyt2_fe_read_unc_blocks() Failed! (Error=%d)\n",
46755 ret);
46756- return ret;
46757+ goto out;
46758 }
46759- *unc = le32_to_cpu(status.uncorrected_block_count);
46760- return 0;
46761+ *unc = le32_to_cpu(status->uncorrected_block_count);
46762+
46763+out:
46764+ kfree(cmd);
46765+ kfree(status);
46766+ return ret;
46767 }
46768
46769 static int cinergyt2_fe_read_signal_strength(struct dvb_frontend *fe,
46770 u16 *strength)
46771 {
46772 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46773- struct dvbt_get_status_msg status;
46774- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46775+ struct dvbt_get_status_msg *status;
46776+ char *cmd;
46777 int ret;
46778
46779- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46780- sizeof(status), 0);
46781+ cmd = kmalloc(1, GFP_KERNEL);
46782+ if (cmd == NULL)
46783+ return -ENOMEM;
46784+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46785+ if (status == NULL) {
46786+ kfree(cmd);
46787+ return -ENOMEM;
46788+ }
46789+
46790+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46791+
46792+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46793+ sizeof(*status), 0);
46794 if (ret < 0) {
46795 err("cinergyt2_fe_read_signal_strength() Failed!"
46796 " (Error=%d)\n", ret);
46797- return ret;
46798+ goto out;
46799 }
46800- *strength = (0xffff - le16_to_cpu(status.gain));
46801+ *strength = (0xffff - le16_to_cpu(status->gain));
46802+
46803+out:
46804+ kfree(cmd);
46805+ kfree(status);
46806 return 0;
46807 }
46808
46809 static int cinergyt2_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
46810 {
46811 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46812- struct dvbt_get_status_msg status;
46813- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46814+ struct dvbt_get_status_msg *status;
46815+ char *cmd;
46816 int ret;
46817
46818- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46819- sizeof(status), 0);
46820+ cmd = kmalloc(1, GFP_KERNEL);
46821+ if (cmd == NULL)
46822+ return -ENOMEM;
46823+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46824+ if (status == NULL) {
46825+ kfree(cmd);
46826+ return -ENOMEM;
46827+ }
46828+
46829+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46830+
46831+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46832+ sizeof(*status), 0);
46833 if (ret < 0) {
46834 err("cinergyt2_fe_read_snr() Failed! (Error=%d)\n", ret);
46835- return ret;
46836+ goto out;
46837 }
46838- *snr = (status.snr << 8) | status.snr;
46839- return 0;
46840+ *snr = (status->snr << 8) | status->snr;
46841+
46842+out:
46843+ kfree(cmd);
46844+ kfree(status);
46845+ return ret;
46846 }
46847
46848 static int cinergyt2_fe_init(struct dvb_frontend *fe)
46849@@ -266,35 +339,46 @@ static int cinergyt2_fe_set_frontend(struct dvb_frontend *fe)
46850 {
46851 struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
46852 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46853- struct dvbt_set_parameters_msg param;
46854- char result[2];
46855+ struct dvbt_set_parameters_msg *param;
46856+ char *result;
46857 int err;
46858
46859- param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
46860- param.tps = cpu_to_le16(compute_tps(fep));
46861- param.freq = cpu_to_le32(fep->frequency / 1000);
46862- param.flags = 0;
46863+ result = kmalloc(2, GFP_KERNEL);
46864+ if (result == NULL)
46865+ return -ENOMEM;
46866+ param = kmalloc(sizeof(*param), GFP_KERNEL);
46867+ if (param == NULL) {
46868+ kfree(result);
46869+ return -ENOMEM;
46870+ }
46871+
46872+ param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
46873+ param->tps = cpu_to_le16(compute_tps(fep));
46874+ param->freq = cpu_to_le32(fep->frequency / 1000);
46875+ param->flags = 0;
46876
46877 switch (fep->bandwidth_hz) {
46878 default:
46879 case 8000000:
46880- param.bandwidth = 8;
46881+ param->bandwidth = 8;
46882 break;
46883 case 7000000:
46884- param.bandwidth = 7;
46885+ param->bandwidth = 7;
46886 break;
46887 case 6000000:
46888- param.bandwidth = 6;
46889+ param->bandwidth = 6;
46890 break;
46891 }
46892
46893 err = dvb_usb_generic_rw(state->d,
46894- (char *)&param, sizeof(param),
46895- result, sizeof(result), 0);
46896+ (char *)param, sizeof(*param),
46897+ result, 2, 0);
46898 if (err < 0)
46899 err("cinergyt2_fe_set_frontend() Failed! err=%d\n", err);
46900
46901- return (err < 0) ? err : 0;
46902+ kfree(result);
46903+ kfree(param);
46904+ return err;
46905 }
46906
46907 static void cinergyt2_fe_release(struct dvb_frontend *fe)
46908diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46909index 733a7ff..f8b52e3 100644
46910--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46911+++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46912@@ -35,42 +35,57 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
46913
46914 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
46915 {
46916- struct hexline hx;
46917- u8 reset;
46918+ struct hexline *hx;
46919+ u8 *reset;
46920 int ret,pos=0;
46921
46922+ reset = kmalloc(1, GFP_KERNEL);
46923+ if (reset == NULL)
46924+ return -ENOMEM;
46925+
46926+ hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
46927+ if (hx == NULL) {
46928+ kfree(reset);
46929+ return -ENOMEM;
46930+ }
46931+
46932 /* stop the CPU */
46933- reset = 1;
46934- if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
46935+ reset[0] = 1;
46936+ if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1)) != 1)
46937 err("could not stop the USB controller CPU.");
46938
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+ while ((ret = dvb_usb_get_hexline(fw,hx,&pos)) > 0) {
46943+ deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx->addr,hx->len,hx->chk);
46944+ ret = usb_cypress_writemem(udev,hx->addr,hx->data,hx->len);
46945
46946- if (ret != hx.len) {
46947+ if (ret != hx->len) {
46948 err("error while transferring firmware "
46949 "(transferred size: %d, block size: %d)",
46950- ret,hx.len);
46951+ ret,hx->len);
46952 ret = -EINVAL;
46953 break;
46954 }
46955 }
46956 if (ret < 0) {
46957 err("firmware download failed at %d with %d",pos,ret);
46958+ kfree(reset);
46959+ kfree(hx);
46960 return ret;
46961 }
46962
46963 if (ret == 0) {
46964 /* restart the CPU */
46965- reset = 0;
46966- if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
46967+ reset[0] = 0;
46968+ if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1) != 1) {
46969 err("could not restart the USB controller CPU.");
46970 ret = -EINVAL;
46971 }
46972 } else
46973 ret = -EIO;
46974
46975+ kfree(reset);
46976+ kfree(hx);
46977+
46978 return ret;
46979 }
46980 EXPORT_SYMBOL(usb_cypress_load_firmware);
46981diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
46982index 1a3df10..57997a5 100644
46983--- a/drivers/media/usb/dvb-usb/dw2102.c
46984+++ b/drivers/media/usb/dvb-usb/dw2102.c
46985@@ -118,7 +118,7 @@ struct su3000_state {
46986
46987 struct s6x0_state {
46988 int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
46989-};
46990+} __no_const;
46991
46992 /* debug */
46993 static int dvb_usb_dw2102_debug;
46994diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
46995index 5801ae7..83f71fa 100644
46996--- a/drivers/media/usb/dvb-usb/technisat-usb2.c
46997+++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
46998@@ -87,8 +87,11 @@ struct technisat_usb2_state {
46999 static int technisat_usb2_i2c_access(struct usb_device *udev,
47000 u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
47001 {
47002- u8 b[64];
47003- int ret, actual_length;
47004+ u8 *b = kmalloc(64, GFP_KERNEL);
47005+ int ret, actual_length, error = 0;
47006+
47007+ if (b == NULL)
47008+ return -ENOMEM;
47009
47010 deb_i2c("i2c-access: %02x, tx: ", device_addr);
47011 debug_dump(tx, txlen, deb_i2c);
47012@@ -121,7 +124,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47013
47014 if (ret < 0) {
47015 err("i2c-error: out failed %02x = %d", device_addr, ret);
47016- return -ENODEV;
47017+ error = -ENODEV;
47018+ goto out;
47019 }
47020
47021 ret = usb_bulk_msg(udev,
47022@@ -129,7 +133,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47023 b, 64, &actual_length, 1000);
47024 if (ret < 0) {
47025 err("i2c-error: in failed %02x = %d", device_addr, ret);
47026- return -ENODEV;
47027+ error = -ENODEV;
47028+ goto out;
47029 }
47030
47031 if (b[0] != I2C_STATUS_OK) {
47032@@ -137,8 +142,10 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47033 /* handle tuner-i2c-nak */
47034 if (!(b[0] == I2C_STATUS_NAK &&
47035 device_addr == 0x60
47036- /* && device_is_technisat_usb2 */))
47037- return -ENODEV;
47038+ /* && device_is_technisat_usb2 */)) {
47039+ error = -ENODEV;
47040+ goto out;
47041+ }
47042 }
47043
47044 deb_i2c("status: %d, ", b[0]);
47045@@ -152,7 +159,9 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47046
47047 deb_i2c("\n");
47048
47049- return 0;
47050+out:
47051+ kfree(b);
47052+ return error;
47053 }
47054
47055 static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
47056@@ -224,14 +233,16 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
47057 {
47058 int ret;
47059
47060- u8 led[8] = {
47061- red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
47062- 0
47063- };
47064+ u8 *led = kzalloc(8, GFP_KERNEL);
47065+
47066+ if (led == NULL)
47067+ return -ENOMEM;
47068
47069 if (disable_led_control && state != TECH_LED_OFF)
47070 return 0;
47071
47072+ led[0] = red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST;
47073+
47074 switch (state) {
47075 case TECH_LED_ON:
47076 led[1] = 0x82;
47077@@ -263,16 +274,22 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
47078 red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
47079 USB_TYPE_VENDOR | USB_DIR_OUT,
47080 0, 0,
47081- led, sizeof(led), 500);
47082+ led, 8, 500);
47083
47084 mutex_unlock(&d->i2c_mutex);
47085+
47086+ kfree(led);
47087+
47088 return ret;
47089 }
47090
47091 static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
47092 {
47093 int ret;
47094- u8 b = 0;
47095+ u8 *b = kzalloc(1, GFP_KERNEL);
47096+
47097+ if (b == NULL)
47098+ return -ENOMEM;
47099
47100 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
47101 return -EAGAIN;
47102@@ -281,10 +298,12 @@ static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 gre
47103 SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
47104 USB_TYPE_VENDOR | USB_DIR_OUT,
47105 (red << 8) | green, 0,
47106- &b, 1, 500);
47107+ b, 1, 500);
47108
47109 mutex_unlock(&d->i2c_mutex);
47110
47111+ kfree(b);
47112+
47113 return ret;
47114 }
47115
47116@@ -328,7 +347,7 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47117 struct dvb_usb_device_description **desc, int *cold)
47118 {
47119 int ret;
47120- u8 version[3];
47121+ u8 *version = kmalloc(3, GFP_KERNEL);
47122
47123 /* first select the interface */
47124 if (usb_set_interface(udev, 0, 1) != 0)
47125@@ -338,11 +357,14 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47126
47127 *cold = 0; /* by default do not download a firmware - just in case something is wrong */
47128
47129+ if (version == NULL)
47130+ return 0;
47131+
47132 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
47133 GET_VERSION_INFO_VENDOR_REQUEST,
47134 USB_TYPE_VENDOR | USB_DIR_IN,
47135 0, 0,
47136- version, sizeof(version), 500);
47137+ version, 3, 500);
47138
47139 if (ret < 0)
47140 *cold = 1;
47141@@ -351,6 +373,8 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47142 *cold = 0;
47143 }
47144
47145+ kfree(version);
47146+
47147 return 0;
47148 }
47149
47150@@ -594,10 +618,15 @@ static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
47151
47152 static int technisat_usb2_get_ir(struct dvb_usb_device *d)
47153 {
47154- u8 buf[62], *b;
47155+ u8 *buf, *b;
47156 int ret;
47157 struct ir_raw_event ev;
47158
47159+ buf = kmalloc(62, GFP_KERNEL);
47160+
47161+ if (buf == NULL)
47162+ return -ENOMEM;
47163+
47164 buf[0] = GET_IR_DATA_VENDOR_REQUEST;
47165 buf[1] = 0x08;
47166 buf[2] = 0x8f;
47167@@ -620,16 +649,20 @@ static int technisat_usb2_get_ir(struct dvb_usb_device *d)
47168 GET_IR_DATA_VENDOR_REQUEST,
47169 USB_TYPE_VENDOR | USB_DIR_IN,
47170 0x8080, 0,
47171- buf, sizeof(buf), 500);
47172+ buf, 62, 500);
47173
47174 unlock:
47175 mutex_unlock(&d->i2c_mutex);
47176
47177- if (ret < 0)
47178+ if (ret < 0) {
47179+ kfree(buf);
47180 return ret;
47181+ }
47182
47183- if (ret == 1)
47184+ if (ret == 1) {
47185+ kfree(buf);
47186 return 0; /* no key pressed */
47187+ }
47188
47189 /* decoding */
47190 b = buf+1;
47191@@ -656,6 +689,8 @@ unlock:
47192
47193 ir_raw_event_handle(d->rc_dev);
47194
47195+ kfree(buf);
47196+
47197 return 1;
47198 }
47199
47200diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47201index af63543..0436f20 100644
47202--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47203+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47204@@ -429,7 +429,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
47205 * by passing a very big num_planes value */
47206 uplane = compat_alloc_user_space(num_planes *
47207 sizeof(struct v4l2_plane));
47208- kp->m.planes = (__force struct v4l2_plane *)uplane;
47209+ kp->m.planes = (__force_kernel struct v4l2_plane *)uplane;
47210
47211 while (--num_planes >= 0) {
47212 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
47213@@ -500,7 +500,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
47214 if (num_planes == 0)
47215 return 0;
47216
47217- uplane = (__force struct v4l2_plane __user *)kp->m.planes;
47218+ uplane = (struct v4l2_plane __force_user *)kp->m.planes;
47219 if (get_user(p, &up->m.planes))
47220 return -EFAULT;
47221 uplane32 = compat_ptr(p);
47222@@ -564,7 +564,7 @@ static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_frame
47223 get_user(kp->flags, &up->flags) ||
47224 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
47225 return -EFAULT;
47226- kp->base = (__force void *)compat_ptr(tmp);
47227+ kp->base = (__force_kernel void *)compat_ptr(tmp);
47228 return 0;
47229 }
47230
47231@@ -669,7 +669,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
47232 n * sizeof(struct v4l2_ext_control32)))
47233 return -EFAULT;
47234 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
47235- kp->controls = (__force struct v4l2_ext_control *)kcontrols;
47236+ kp->controls = (__force_kernel struct v4l2_ext_control *)kcontrols;
47237 while (--n >= 0) {
47238 u32 id;
47239
47240@@ -696,7 +696,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
47241 {
47242 struct v4l2_ext_control32 __user *ucontrols;
47243 struct v4l2_ext_control __user *kcontrols =
47244- (__force struct v4l2_ext_control __user *)kp->controls;
47245+ (struct v4l2_ext_control __force_user *)kp->controls;
47246 int n = kp->count;
47247 compat_caddr_t p;
47248
47249@@ -780,7 +780,7 @@ static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
47250 get_user(tmp, &up->edid) ||
47251 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
47252 return -EFAULT;
47253- kp->edid = (__force u8 *)compat_ptr(tmp);
47254+ kp->edid = (__force_kernel u8 *)compat_ptr(tmp);
47255 return 0;
47256 }
47257
47258diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
47259index 015f92a..59e311e 100644
47260--- a/drivers/media/v4l2-core/v4l2-device.c
47261+++ b/drivers/media/v4l2-core/v4l2-device.c
47262@@ -75,9 +75,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
47263 EXPORT_SYMBOL_GPL(v4l2_device_put);
47264
47265 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
47266- atomic_t *instance)
47267+ atomic_unchecked_t *instance)
47268 {
47269- int num = atomic_inc_return(instance) - 1;
47270+ int num = atomic_inc_return_unchecked(instance) - 1;
47271 int len = strlen(basename);
47272
47273 if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
47274diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
47275index b084072..36706d7 100644
47276--- a/drivers/media/v4l2-core/v4l2-ioctl.c
47277+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
47278@@ -2151,7 +2151,8 @@ struct v4l2_ioctl_info {
47279 struct file *file, void *fh, void *p);
47280 } u;
47281 void (*debug)(const void *arg, bool write_only);
47282-};
47283+} __do_const;
47284+typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
47285
47286 /* This control needs a priority check */
47287 #define INFO_FL_PRIO (1 << 0)
47288@@ -2335,7 +2336,7 @@ static long __video_do_ioctl(struct file *file,
47289 struct video_device *vfd = video_devdata(file);
47290 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
47291 bool write_only = false;
47292- struct v4l2_ioctl_info default_info;
47293+ v4l2_ioctl_info_no_const default_info;
47294 const struct v4l2_ioctl_info *info;
47295 void *fh = file->private_data;
47296 struct v4l2_fh *vfh = NULL;
47297@@ -2426,7 +2427,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47298 ret = -EINVAL;
47299 break;
47300 }
47301- *user_ptr = (void __user *)buf->m.planes;
47302+ *user_ptr = (void __force_user *)buf->m.planes;
47303 *kernel_ptr = (void **)&buf->m.planes;
47304 *array_size = sizeof(struct v4l2_plane) * buf->length;
47305 ret = 1;
47306@@ -2443,7 +2444,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47307 ret = -EINVAL;
47308 break;
47309 }
47310- *user_ptr = (void __user *)edid->edid;
47311+ *user_ptr = (void __force_user *)edid->edid;
47312 *kernel_ptr = (void **)&edid->edid;
47313 *array_size = edid->blocks * 128;
47314 ret = 1;
47315@@ -2461,7 +2462,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47316 ret = -EINVAL;
47317 break;
47318 }
47319- *user_ptr = (void __user *)ctrls->controls;
47320+ *user_ptr = (void __force_user *)ctrls->controls;
47321 *kernel_ptr = (void **)&ctrls->controls;
47322 *array_size = sizeof(struct v4l2_ext_control)
47323 * ctrls->count;
47324@@ -2562,7 +2563,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
47325 }
47326
47327 if (has_array_args) {
47328- *kernel_ptr = (void __force *)user_ptr;
47329+ *kernel_ptr = (void __force_kernel *)user_ptr;
47330 if (copy_to_user(user_ptr, mbuf, array_size))
47331 err = -EFAULT;
47332 goto out_array_args;
47333diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
47334index 24696f5..3637780 100644
47335--- a/drivers/memory/omap-gpmc.c
47336+++ b/drivers/memory/omap-gpmc.c
47337@@ -211,7 +211,6 @@ struct omap3_gpmc_regs {
47338 };
47339
47340 static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
47341-static struct irq_chip gpmc_irq_chip;
47342 static int gpmc_irq_start;
47343
47344 static struct resource gpmc_mem_root;
47345@@ -939,6 +938,17 @@ static void gpmc_irq_noop(struct irq_data *data) { }
47346
47347 static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
47348
47349+static struct irq_chip gpmc_irq_chip = {
47350+ .name = "gpmc",
47351+ .irq_startup = gpmc_irq_noop_ret,
47352+ .irq_enable = gpmc_irq_enable,
47353+ .irq_disable = gpmc_irq_disable,
47354+ .irq_shutdown = gpmc_irq_noop,
47355+ .irq_ack = gpmc_irq_noop,
47356+ .irq_mask = gpmc_irq_noop,
47357+ .irq_unmask = gpmc_irq_noop,
47358+};
47359+
47360 static int gpmc_setup_irq(void)
47361 {
47362 int i;
47363@@ -953,15 +963,6 @@ static int gpmc_setup_irq(void)
47364 return gpmc_irq_start;
47365 }
47366
47367- gpmc_irq_chip.name = "gpmc";
47368- gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
47369- gpmc_irq_chip.irq_enable = gpmc_irq_enable;
47370- gpmc_irq_chip.irq_disable = gpmc_irq_disable;
47371- gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
47372- gpmc_irq_chip.irq_ack = gpmc_irq_noop;
47373- gpmc_irq_chip.irq_mask = gpmc_irq_noop;
47374- gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
47375-
47376 gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
47377 gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
47378
47379diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
47380index 187f836..679544b 100644
47381--- a/drivers/message/fusion/mptbase.c
47382+++ b/drivers/message/fusion/mptbase.c
47383@@ -6746,8 +6746,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
47384 seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
47385 seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
47386
47387+#ifdef CONFIG_GRKERNSEC_HIDESYM
47388+ seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
47389+#else
47390 seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n",
47391 (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
47392+#endif
47393+
47394 /*
47395 * Rounding UP to nearest 4-kB boundary here...
47396 */
47397@@ -6760,7 +6765,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
47398 ioc->facts.GlobalCredits);
47399
47400 seq_printf(m, " Frames @ 0x%p (Dma @ 0x%p)\n",
47401+#ifdef CONFIG_GRKERNSEC_HIDESYM
47402+ NULL, NULL);
47403+#else
47404 (void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
47405+#endif
47406 sz = (ioc->reply_sz * ioc->reply_depth) + 128;
47407 seq_printf(m, " {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
47408 ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
47409diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
47410index 5bdaae1..eced16f 100644
47411--- a/drivers/message/fusion/mptsas.c
47412+++ b/drivers/message/fusion/mptsas.c
47413@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
47414 return 0;
47415 }
47416
47417+static inline void
47418+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
47419+{
47420+ if (phy_info->port_details) {
47421+ phy_info->port_details->rphy = rphy;
47422+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
47423+ ioc->name, rphy));
47424+ }
47425+
47426+ if (rphy) {
47427+ dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
47428+ &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
47429+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
47430+ ioc->name, rphy, rphy->dev.release));
47431+ }
47432+}
47433+
47434 /* no mutex */
47435 static void
47436 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
47437@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
47438 return NULL;
47439 }
47440
47441-static inline void
47442-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
47443-{
47444- if (phy_info->port_details) {
47445- phy_info->port_details->rphy = rphy;
47446- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
47447- ioc->name, rphy));
47448- }
47449-
47450- if (rphy) {
47451- dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
47452- &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
47453- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
47454- ioc->name, rphy, rphy->dev.release));
47455- }
47456-}
47457-
47458 static inline struct sas_port *
47459 mptsas_get_port(struct mptsas_phyinfo *phy_info)
47460 {
47461diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
47462index 9a8e185..27ff17d 100644
47463--- a/drivers/mfd/ab8500-debugfs.c
47464+++ b/drivers/mfd/ab8500-debugfs.c
47465@@ -100,7 +100,7 @@ static int irq_last;
47466 static u32 *irq_count;
47467 static int num_irqs;
47468
47469-static struct device_attribute **dev_attr;
47470+static device_attribute_no_const **dev_attr;
47471 static char **event_name;
47472
47473 static u8 avg_sample = SAMPLE_16;
47474diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
47475index 5615522..1eb6f3dc 100644
47476--- a/drivers/mfd/kempld-core.c
47477+++ b/drivers/mfd/kempld-core.c
47478@@ -499,7 +499,7 @@ static struct platform_driver kempld_driver = {
47479 .remove = kempld_remove,
47480 };
47481
47482-static struct dmi_system_id kempld_dmi_table[] __initdata = {
47483+static const struct dmi_system_id kempld_dmi_table[] __initconst = {
47484 {
47485 .ident = "BHL6",
47486 .matches = {
47487diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
47488index c880c89..45a7c68 100644
47489--- a/drivers/mfd/max8925-i2c.c
47490+++ b/drivers/mfd/max8925-i2c.c
47491@@ -152,7 +152,7 @@ static int max8925_probe(struct i2c_client *client,
47492 const struct i2c_device_id *id)
47493 {
47494 struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
47495- static struct max8925_chip *chip;
47496+ struct max8925_chip *chip;
47497 struct device_node *node = client->dev.of_node;
47498
47499 if (node && !pdata) {
47500diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
47501index 7612d89..70549c2 100644
47502--- a/drivers/mfd/tps65910.c
47503+++ b/drivers/mfd/tps65910.c
47504@@ -230,7 +230,7 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
47505 struct tps65910_platform_data *pdata)
47506 {
47507 int ret = 0;
47508- static struct regmap_irq_chip *tps6591x_irqs_chip;
47509+ struct regmap_irq_chip *tps6591x_irqs_chip;
47510
47511 if (!irq) {
47512 dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
47513diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
47514index 1b772ef..01e77d33 100644
47515--- a/drivers/mfd/twl4030-irq.c
47516+++ b/drivers/mfd/twl4030-irq.c
47517@@ -34,6 +34,7 @@
47518 #include <linux/of.h>
47519 #include <linux/irqdomain.h>
47520 #include <linux/i2c/twl.h>
47521+#include <asm/pgtable.h>
47522
47523 #include "twl-core.h"
47524
47525@@ -729,10 +730,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
47526 * Install an irq handler for each of the SIH modules;
47527 * clone dummy irq_chip since PIH can't *do* anything
47528 */
47529- twl4030_irq_chip = dummy_irq_chip;
47530- twl4030_irq_chip.name = "twl4030";
47531+ pax_open_kernel();
47532+ memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
47533+ *(const char **)&twl4030_irq_chip.name = "twl4030";
47534
47535- twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
47536+ *(void **)&twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
47537+ pax_close_kernel();
47538
47539 for (i = irq_base; i < irq_end; i++) {
47540 irq_set_chip_and_handler(i, &twl4030_irq_chip,
47541diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
47542index 464419b..64bae8d 100644
47543--- a/drivers/misc/c2port/core.c
47544+++ b/drivers/misc/c2port/core.c
47545@@ -922,7 +922,9 @@ struct c2port_device *c2port_device_register(char *name,
47546 goto error_idr_alloc;
47547 c2dev->id = ret;
47548
47549- bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
47550+ pax_open_kernel();
47551+ *(size_t *)&bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
47552+ pax_close_kernel();
47553
47554 c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
47555 "c2port%d", c2dev->id);
47556diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
47557index 8385177..2f54635 100644
47558--- a/drivers/misc/eeprom/sunxi_sid.c
47559+++ b/drivers/misc/eeprom/sunxi_sid.c
47560@@ -126,7 +126,9 @@ static int sunxi_sid_probe(struct platform_device *pdev)
47561
47562 platform_set_drvdata(pdev, sid_data);
47563
47564- sid_bin_attr.size = sid_data->keysize;
47565+ pax_open_kernel();
47566+ *(size_t *)&sid_bin_attr.size = sid_data->keysize;
47567+ pax_close_kernel();
47568 if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
47569 return -ENODEV;
47570
47571diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
47572index 36f5d52..32311c3 100644
47573--- a/drivers/misc/kgdbts.c
47574+++ b/drivers/misc/kgdbts.c
47575@@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
47576 char before[BREAK_INSTR_SIZE];
47577 char after[BREAK_INSTR_SIZE];
47578
47579- probe_kernel_read(before, (char *)kgdbts_break_test,
47580+ probe_kernel_read(before, ktla_ktva((char *)kgdbts_break_test),
47581 BREAK_INSTR_SIZE);
47582 init_simple_test();
47583 ts.tst = plant_and_detach_test;
47584@@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
47585 /* Activate test with initial breakpoint */
47586 if (!is_early)
47587 kgdb_breakpoint();
47588- probe_kernel_read(after, (char *)kgdbts_break_test,
47589+ probe_kernel_read(after, ktla_ktva((char *)kgdbts_break_test),
47590 BREAK_INSTR_SIZE);
47591 if (memcmp(before, after, BREAK_INSTR_SIZE)) {
47592 printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
47593diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
47594index 3ef4627..8d00486 100644
47595--- a/drivers/misc/lis3lv02d/lis3lv02d.c
47596+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
47597@@ -497,7 +497,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
47598 * the lid is closed. This leads to interrupts as soon as a little move
47599 * is done.
47600 */
47601- atomic_inc(&lis3->count);
47602+ atomic_inc_unchecked(&lis3->count);
47603
47604 wake_up_interruptible(&lis3->misc_wait);
47605 kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
47606@@ -583,7 +583,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
47607 if (lis3->pm_dev)
47608 pm_runtime_get_sync(lis3->pm_dev);
47609
47610- atomic_set(&lis3->count, 0);
47611+ atomic_set_unchecked(&lis3->count, 0);
47612 return 0;
47613 }
47614
47615@@ -615,7 +615,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
47616 add_wait_queue(&lis3->misc_wait, &wait);
47617 while (true) {
47618 set_current_state(TASK_INTERRUPTIBLE);
47619- data = atomic_xchg(&lis3->count, 0);
47620+ data = atomic_xchg_unchecked(&lis3->count, 0);
47621 if (data)
47622 break;
47623
47624@@ -656,7 +656,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
47625 struct lis3lv02d, miscdev);
47626
47627 poll_wait(file, &lis3->misc_wait, wait);
47628- if (atomic_read(&lis3->count))
47629+ if (atomic_read_unchecked(&lis3->count))
47630 return POLLIN | POLLRDNORM;
47631 return 0;
47632 }
47633diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
47634index c439c82..1f20f57 100644
47635--- a/drivers/misc/lis3lv02d/lis3lv02d.h
47636+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
47637@@ -297,7 +297,7 @@ struct lis3lv02d {
47638 struct input_polled_dev *idev; /* input device */
47639 struct platform_device *pdev; /* platform device */
47640 struct regulator_bulk_data regulators[2];
47641- atomic_t count; /* interrupt count after last read */
47642+ atomic_unchecked_t count; /* interrupt count after last read */
47643 union axis_conversion ac; /* hw -> logical axis */
47644 int mapped_btns[3];
47645
47646diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
47647index 2f30bad..c4c13d0 100644
47648--- a/drivers/misc/sgi-gru/gruhandles.c
47649+++ b/drivers/misc/sgi-gru/gruhandles.c
47650@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
47651 unsigned long nsec;
47652
47653 nsec = CLKS2NSEC(clks);
47654- atomic_long_inc(&mcs_op_statistics[op].count);
47655- atomic_long_add(nsec, &mcs_op_statistics[op].total);
47656+ atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
47657+ atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
47658 if (mcs_op_statistics[op].max < nsec)
47659 mcs_op_statistics[op].max = nsec;
47660 }
47661diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
47662index 4f76359..cdfcb2e 100644
47663--- a/drivers/misc/sgi-gru/gruprocfs.c
47664+++ b/drivers/misc/sgi-gru/gruprocfs.c
47665@@ -32,9 +32,9 @@
47666
47667 #define printstat(s, f) printstat_val(s, &gru_stats.f, #f)
47668
47669-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
47670+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
47671 {
47672- unsigned long val = atomic_long_read(v);
47673+ unsigned long val = atomic_long_read_unchecked(v);
47674
47675 seq_printf(s, "%16lu %s\n", val, id);
47676 }
47677@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
47678
47679 seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
47680 for (op = 0; op < mcsop_last; op++) {
47681- count = atomic_long_read(&mcs_op_statistics[op].count);
47682- total = atomic_long_read(&mcs_op_statistics[op].total);
47683+ count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
47684+ total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
47685 max = mcs_op_statistics[op].max;
47686 seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
47687 count ? total / count : 0, max);
47688diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
47689index 5c3ce24..4915ccb 100644
47690--- a/drivers/misc/sgi-gru/grutables.h
47691+++ b/drivers/misc/sgi-gru/grutables.h
47692@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
47693 * GRU statistics.
47694 */
47695 struct gru_stats_s {
47696- atomic_long_t vdata_alloc;
47697- atomic_long_t vdata_free;
47698- atomic_long_t gts_alloc;
47699- atomic_long_t gts_free;
47700- atomic_long_t gms_alloc;
47701- atomic_long_t gms_free;
47702- atomic_long_t gts_double_allocate;
47703- atomic_long_t assign_context;
47704- atomic_long_t assign_context_failed;
47705- atomic_long_t free_context;
47706- atomic_long_t load_user_context;
47707- atomic_long_t load_kernel_context;
47708- atomic_long_t lock_kernel_context;
47709- atomic_long_t unlock_kernel_context;
47710- atomic_long_t steal_user_context;
47711- atomic_long_t steal_kernel_context;
47712- atomic_long_t steal_context_failed;
47713- atomic_long_t nopfn;
47714- atomic_long_t asid_new;
47715- atomic_long_t asid_next;
47716- atomic_long_t asid_wrap;
47717- atomic_long_t asid_reuse;
47718- atomic_long_t intr;
47719- atomic_long_t intr_cbr;
47720- atomic_long_t intr_tfh;
47721- atomic_long_t intr_spurious;
47722- atomic_long_t intr_mm_lock_failed;
47723- atomic_long_t call_os;
47724- atomic_long_t call_os_wait_queue;
47725- atomic_long_t user_flush_tlb;
47726- atomic_long_t user_unload_context;
47727- atomic_long_t user_exception;
47728- atomic_long_t set_context_option;
47729- atomic_long_t check_context_retarget_intr;
47730- atomic_long_t check_context_unload;
47731- atomic_long_t tlb_dropin;
47732- atomic_long_t tlb_preload_page;
47733- atomic_long_t tlb_dropin_fail_no_asid;
47734- atomic_long_t tlb_dropin_fail_upm;
47735- atomic_long_t tlb_dropin_fail_invalid;
47736- atomic_long_t tlb_dropin_fail_range_active;
47737- atomic_long_t tlb_dropin_fail_idle;
47738- atomic_long_t tlb_dropin_fail_fmm;
47739- atomic_long_t tlb_dropin_fail_no_exception;
47740- atomic_long_t tfh_stale_on_fault;
47741- atomic_long_t mmu_invalidate_range;
47742- atomic_long_t mmu_invalidate_page;
47743- atomic_long_t flush_tlb;
47744- atomic_long_t flush_tlb_gru;
47745- atomic_long_t flush_tlb_gru_tgh;
47746- atomic_long_t flush_tlb_gru_zero_asid;
47747+ atomic_long_unchecked_t vdata_alloc;
47748+ atomic_long_unchecked_t vdata_free;
47749+ atomic_long_unchecked_t gts_alloc;
47750+ atomic_long_unchecked_t gts_free;
47751+ atomic_long_unchecked_t gms_alloc;
47752+ atomic_long_unchecked_t gms_free;
47753+ atomic_long_unchecked_t gts_double_allocate;
47754+ atomic_long_unchecked_t assign_context;
47755+ atomic_long_unchecked_t assign_context_failed;
47756+ atomic_long_unchecked_t free_context;
47757+ atomic_long_unchecked_t load_user_context;
47758+ atomic_long_unchecked_t load_kernel_context;
47759+ atomic_long_unchecked_t lock_kernel_context;
47760+ atomic_long_unchecked_t unlock_kernel_context;
47761+ atomic_long_unchecked_t steal_user_context;
47762+ atomic_long_unchecked_t steal_kernel_context;
47763+ atomic_long_unchecked_t steal_context_failed;
47764+ atomic_long_unchecked_t nopfn;
47765+ atomic_long_unchecked_t asid_new;
47766+ atomic_long_unchecked_t asid_next;
47767+ atomic_long_unchecked_t asid_wrap;
47768+ atomic_long_unchecked_t asid_reuse;
47769+ atomic_long_unchecked_t intr;
47770+ atomic_long_unchecked_t intr_cbr;
47771+ atomic_long_unchecked_t intr_tfh;
47772+ atomic_long_unchecked_t intr_spurious;
47773+ atomic_long_unchecked_t intr_mm_lock_failed;
47774+ atomic_long_unchecked_t call_os;
47775+ atomic_long_unchecked_t call_os_wait_queue;
47776+ atomic_long_unchecked_t user_flush_tlb;
47777+ atomic_long_unchecked_t user_unload_context;
47778+ atomic_long_unchecked_t user_exception;
47779+ atomic_long_unchecked_t set_context_option;
47780+ atomic_long_unchecked_t check_context_retarget_intr;
47781+ atomic_long_unchecked_t check_context_unload;
47782+ atomic_long_unchecked_t tlb_dropin;
47783+ atomic_long_unchecked_t tlb_preload_page;
47784+ atomic_long_unchecked_t tlb_dropin_fail_no_asid;
47785+ atomic_long_unchecked_t tlb_dropin_fail_upm;
47786+ atomic_long_unchecked_t tlb_dropin_fail_invalid;
47787+ atomic_long_unchecked_t tlb_dropin_fail_range_active;
47788+ atomic_long_unchecked_t tlb_dropin_fail_idle;
47789+ atomic_long_unchecked_t tlb_dropin_fail_fmm;
47790+ atomic_long_unchecked_t tlb_dropin_fail_no_exception;
47791+ atomic_long_unchecked_t tfh_stale_on_fault;
47792+ atomic_long_unchecked_t mmu_invalidate_range;
47793+ atomic_long_unchecked_t mmu_invalidate_page;
47794+ atomic_long_unchecked_t flush_tlb;
47795+ atomic_long_unchecked_t flush_tlb_gru;
47796+ atomic_long_unchecked_t flush_tlb_gru_tgh;
47797+ atomic_long_unchecked_t flush_tlb_gru_zero_asid;
47798
47799- atomic_long_t copy_gpa;
47800- atomic_long_t read_gpa;
47801+ atomic_long_unchecked_t copy_gpa;
47802+ atomic_long_unchecked_t read_gpa;
47803
47804- atomic_long_t mesq_receive;
47805- atomic_long_t mesq_receive_none;
47806- atomic_long_t mesq_send;
47807- atomic_long_t mesq_send_failed;
47808- atomic_long_t mesq_noop;
47809- atomic_long_t mesq_send_unexpected_error;
47810- atomic_long_t mesq_send_lb_overflow;
47811- atomic_long_t mesq_send_qlimit_reached;
47812- atomic_long_t mesq_send_amo_nacked;
47813- atomic_long_t mesq_send_put_nacked;
47814- atomic_long_t mesq_page_overflow;
47815- atomic_long_t mesq_qf_locked;
47816- atomic_long_t mesq_qf_noop_not_full;
47817- atomic_long_t mesq_qf_switch_head_failed;
47818- atomic_long_t mesq_qf_unexpected_error;
47819- atomic_long_t mesq_noop_unexpected_error;
47820- atomic_long_t mesq_noop_lb_overflow;
47821- atomic_long_t mesq_noop_qlimit_reached;
47822- atomic_long_t mesq_noop_amo_nacked;
47823- atomic_long_t mesq_noop_put_nacked;
47824- atomic_long_t mesq_noop_page_overflow;
47825+ atomic_long_unchecked_t mesq_receive;
47826+ atomic_long_unchecked_t mesq_receive_none;
47827+ atomic_long_unchecked_t mesq_send;
47828+ atomic_long_unchecked_t mesq_send_failed;
47829+ atomic_long_unchecked_t mesq_noop;
47830+ atomic_long_unchecked_t mesq_send_unexpected_error;
47831+ atomic_long_unchecked_t mesq_send_lb_overflow;
47832+ atomic_long_unchecked_t mesq_send_qlimit_reached;
47833+ atomic_long_unchecked_t mesq_send_amo_nacked;
47834+ atomic_long_unchecked_t mesq_send_put_nacked;
47835+ atomic_long_unchecked_t mesq_page_overflow;
47836+ atomic_long_unchecked_t mesq_qf_locked;
47837+ atomic_long_unchecked_t mesq_qf_noop_not_full;
47838+ atomic_long_unchecked_t mesq_qf_switch_head_failed;
47839+ atomic_long_unchecked_t mesq_qf_unexpected_error;
47840+ atomic_long_unchecked_t mesq_noop_unexpected_error;
47841+ atomic_long_unchecked_t mesq_noop_lb_overflow;
47842+ atomic_long_unchecked_t mesq_noop_qlimit_reached;
47843+ atomic_long_unchecked_t mesq_noop_amo_nacked;
47844+ atomic_long_unchecked_t mesq_noop_put_nacked;
47845+ atomic_long_unchecked_t mesq_noop_page_overflow;
47846
47847 };
47848
47849@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
47850 tghop_invalidate, mcsop_last};
47851
47852 struct mcs_op_statistic {
47853- atomic_long_t count;
47854- atomic_long_t total;
47855+ atomic_long_unchecked_t count;
47856+ atomic_long_unchecked_t total;
47857 unsigned long max;
47858 };
47859
47860@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
47861
47862 #define STAT(id) do { \
47863 if (gru_options & OPT_STATS) \
47864- atomic_long_inc(&gru_stats.id); \
47865+ atomic_long_inc_unchecked(&gru_stats.id); \
47866 } while (0)
47867
47868 #ifdef CONFIG_SGI_GRU_DEBUG
47869diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
47870index c862cd4..0d176fe 100644
47871--- a/drivers/misc/sgi-xp/xp.h
47872+++ b/drivers/misc/sgi-xp/xp.h
47873@@ -288,7 +288,7 @@ struct xpc_interface {
47874 xpc_notify_func, void *);
47875 void (*received) (short, int, void *);
47876 enum xp_retval (*partid_to_nasids) (short, void *);
47877-};
47878+} __no_const;
47879
47880 extern struct xpc_interface xpc_interface;
47881
47882diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
47883index 01be66d..e3a0c7e 100644
47884--- a/drivers/misc/sgi-xp/xp_main.c
47885+++ b/drivers/misc/sgi-xp/xp_main.c
47886@@ -78,13 +78,13 @@ xpc_notloaded(void)
47887 }
47888
47889 struct xpc_interface xpc_interface = {
47890- (void (*)(int))xpc_notloaded,
47891- (void (*)(int))xpc_notloaded,
47892- (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
47893- (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
47894+ .connect = (void (*)(int))xpc_notloaded,
47895+ .disconnect = (void (*)(int))xpc_notloaded,
47896+ .send = (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
47897+ .send_notify = (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
47898 void *))xpc_notloaded,
47899- (void (*)(short, int, void *))xpc_notloaded,
47900- (enum xp_retval(*)(short, void *))xpc_notloaded
47901+ .received = (void (*)(short, int, void *))xpc_notloaded,
47902+ .partid_to_nasids = (enum xp_retval(*)(short, void *))xpc_notloaded
47903 };
47904 EXPORT_SYMBOL_GPL(xpc_interface);
47905
47906diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
47907index b94d5f7..7f494c5 100644
47908--- a/drivers/misc/sgi-xp/xpc.h
47909+++ b/drivers/misc/sgi-xp/xpc.h
47910@@ -835,6 +835,7 @@ struct xpc_arch_operations {
47911 void (*received_payload) (struct xpc_channel *, void *);
47912 void (*notify_senders_of_disconnect) (struct xpc_channel *);
47913 };
47914+typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
47915
47916 /* struct xpc_partition act_state values (for XPC HB) */
47917
47918@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
47919 /* found in xpc_main.c */
47920 extern struct device *xpc_part;
47921 extern struct device *xpc_chan;
47922-extern struct xpc_arch_operations xpc_arch_ops;
47923+extern xpc_arch_operations_no_const xpc_arch_ops;
47924 extern int xpc_disengage_timelimit;
47925 extern int xpc_disengage_timedout;
47926 extern int xpc_activate_IRQ_rcvd;
47927diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
47928index 82dc574..8539ab2 100644
47929--- a/drivers/misc/sgi-xp/xpc_main.c
47930+++ b/drivers/misc/sgi-xp/xpc_main.c
47931@@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
47932 .notifier_call = xpc_system_die,
47933 };
47934
47935-struct xpc_arch_operations xpc_arch_ops;
47936+xpc_arch_operations_no_const xpc_arch_ops;
47937
47938 /*
47939 * Timer function to enforce the timelimit on the partition disengage.
47940@@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
47941
47942 if (((die_args->trapnr == X86_TRAP_MF) ||
47943 (die_args->trapnr == X86_TRAP_XF)) &&
47944- !user_mode_vm(die_args->regs))
47945+ !user_mode(die_args->regs))
47946 xpc_die_deactivate();
47947
47948 break;
47949diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
47950index ed2e71a..54c498e 100644
47951--- a/drivers/mmc/card/block.c
47952+++ b/drivers/mmc/card/block.c
47953@@ -577,7 +577,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
47954 if (idata->ic.postsleep_min_us)
47955 usleep_range(idata->ic.postsleep_min_us, idata->ic.postsleep_max_us);
47956
47957- if (copy_to_user(&(ic_ptr->response), cmd.resp, sizeof(cmd.resp))) {
47958+ if (copy_to_user(ic_ptr->response, cmd.resp, sizeof(cmd.resp))) {
47959 err = -EFAULT;
47960 goto cmd_rel_host;
47961 }
47962diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
47963index 18c4afe..43be71e 100644
47964--- a/drivers/mmc/host/dw_mmc.h
47965+++ b/drivers/mmc/host/dw_mmc.h
47966@@ -271,5 +271,5 @@ struct dw_mci_drv_data {
47967 void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
47968 int (*parse_dt)(struct dw_mci *host);
47969 int (*execute_tuning)(struct dw_mci_slot *slot);
47970-};
47971+} __do_const;
47972 #endif /* _DW_MMC_H_ */
47973diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
47974index 7fe1619..ae0781b 100644
47975--- a/drivers/mmc/host/mmci.c
47976+++ b/drivers/mmc/host/mmci.c
47977@@ -1630,7 +1630,9 @@ static int mmci_probe(struct amba_device *dev,
47978 mmc->caps |= MMC_CAP_CMD23;
47979
47980 if (variant->busy_detect) {
47981- mmci_ops.card_busy = mmci_card_busy;
47982+ pax_open_kernel();
47983+ *(void **)&mmci_ops.card_busy = mmci_card_busy;
47984+ pax_close_kernel();
47985 mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
47986 mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
47987 mmc->max_busy_timeout = 0;
47988diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
47989index f84cfb0..aebe5d6 100644
47990--- a/drivers/mmc/host/omap_hsmmc.c
47991+++ b/drivers/mmc/host/omap_hsmmc.c
47992@@ -2054,7 +2054,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
47993
47994 if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
47995 dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n");
47996- omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
47997+ pax_open_kernel();
47998+ *(void **)&omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
47999+ pax_close_kernel();
48000 }
48001
48002 pm_runtime_enable(host->dev);
48003diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
48004index 10ef824..88461a2 100644
48005--- a/drivers/mmc/host/sdhci-esdhc-imx.c
48006+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
48007@@ -989,9 +989,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
48008 host->mmc->caps |= MMC_CAP_1_8V_DDR;
48009 }
48010
48011- if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
48012- sdhci_esdhc_ops.platform_execute_tuning =
48013+ if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
48014+ pax_open_kernel();
48015+ *(void **)&sdhci_esdhc_ops.platform_execute_tuning =
48016 esdhc_executing_tuning;
48017+ pax_close_kernel();
48018+ }
48019
48020 if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
48021 writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
48022diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
48023index c6d2dd7..81b1ca3 100644
48024--- a/drivers/mmc/host/sdhci-s3c.c
48025+++ b/drivers/mmc/host/sdhci-s3c.c
48026@@ -598,9 +598,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
48027 * we can use overriding functions instead of default.
48028 */
48029 if (sc->no_divider) {
48030- sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
48031- sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
48032- sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
48033+ pax_open_kernel();
48034+ *(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
48035+ *(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
48036+ *(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
48037+ pax_close_kernel();
48038 }
48039
48040 /* It supports additional host capabilities if needed */
48041diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
48042index 423666b..81ff5eb 100644
48043--- a/drivers/mtd/chips/cfi_cmdset_0020.c
48044+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
48045@@ -666,7 +666,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
48046 size_t totlen = 0, thislen;
48047 int ret = 0;
48048 size_t buflen = 0;
48049- static char *buffer;
48050+ char *buffer;
48051
48052 if (!ECCBUF_SIZE) {
48053 /* We should fall back to a general writev implementation.
48054diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
48055index f44c606..aa4e804 100644
48056--- a/drivers/mtd/nand/denali.c
48057+++ b/drivers/mtd/nand/denali.c
48058@@ -24,6 +24,7 @@
48059 #include <linux/slab.h>
48060 #include <linux/mtd/mtd.h>
48061 #include <linux/module.h>
48062+#include <linux/slab.h>
48063
48064 #include "denali.h"
48065
48066diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48067index 33f3c3c..d6bbe6a 100644
48068--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48069+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48070@@ -386,7 +386,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
48071
48072 /* first try to map the upper buffer directly */
48073 if (virt_addr_valid(this->upper_buf) &&
48074- !object_is_on_stack(this->upper_buf)) {
48075+ !object_starts_on_stack(this->upper_buf)) {
48076 sg_init_one(sgl, this->upper_buf, this->upper_len);
48077 ret = dma_map_sg(this->dev, sgl, 1, dr);
48078 if (ret == 0)
48079diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
48080index a5dfbfb..8042ab4 100644
48081--- a/drivers/mtd/nftlmount.c
48082+++ b/drivers/mtd/nftlmount.c
48083@@ -24,6 +24,7 @@
48084 #include <asm/errno.h>
48085 #include <linux/delay.h>
48086 #include <linux/slab.h>
48087+#include <linux/sched.h>
48088 #include <linux/mtd/mtd.h>
48089 #include <linux/mtd/nand.h>
48090 #include <linux/mtd/nftl.h>
48091diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
48092index c23184a..4115c41 100644
48093--- a/drivers/mtd/sm_ftl.c
48094+++ b/drivers/mtd/sm_ftl.c
48095@@ -56,7 +56,7 @@ static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
48096 #define SM_CIS_VENDOR_OFFSET 0x59
48097 static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
48098 {
48099- struct attribute_group *attr_group;
48100+ attribute_group_no_const *attr_group;
48101 struct attribute **attributes;
48102 struct sm_sysfs_attribute *vendor_attribute;
48103 char *vendor;
48104diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
48105index 7b11243..b3278a3 100644
48106--- a/drivers/net/bonding/bond_netlink.c
48107+++ b/drivers/net/bonding/bond_netlink.c
48108@@ -585,7 +585,7 @@ nla_put_failure:
48109 return -EMSGSIZE;
48110 }
48111
48112-struct rtnl_link_ops bond_link_ops __read_mostly = {
48113+struct rtnl_link_ops bond_link_ops = {
48114 .kind = "bond",
48115 .priv_size = sizeof(struct bonding),
48116 .setup = bond_setup,
48117diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
48118index b3b922a..80bba38 100644
48119--- a/drivers/net/caif/caif_hsi.c
48120+++ b/drivers/net/caif/caif_hsi.c
48121@@ -1444,7 +1444,7 @@ err:
48122 return -ENODEV;
48123 }
48124
48125-static struct rtnl_link_ops caif_hsi_link_ops __read_mostly = {
48126+static struct rtnl_link_ops caif_hsi_link_ops = {
48127 .kind = "cfhsi",
48128 .priv_size = sizeof(struct cfhsi),
48129 .setup = cfhsi_setup,
48130diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
48131index 58808f65..0bdc7b3 100644
48132--- a/drivers/net/can/Kconfig
48133+++ b/drivers/net/can/Kconfig
48134@@ -98,7 +98,7 @@ config CAN_JANZ_ICAN3
48135
48136 config CAN_FLEXCAN
48137 tristate "Support for Freescale FLEXCAN based chips"
48138- depends on ARM || PPC
48139+ depends on (ARM && CPU_LITTLE_ENDIAN) || PPC
48140 ---help---
48141 Say Y here if you want to support for Freescale FlexCAN.
48142
48143diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
48144index b0f6924..59e9640 100644
48145--- a/drivers/net/can/dev.c
48146+++ b/drivers/net/can/dev.c
48147@@ -959,7 +959,7 @@ static int can_newlink(struct net *src_net, struct net_device *dev,
48148 return -EOPNOTSUPP;
48149 }
48150
48151-static struct rtnl_link_ops can_link_ops __read_mostly = {
48152+static struct rtnl_link_ops can_link_ops = {
48153 .kind = "can",
48154 .maxtype = IFLA_CAN_MAX,
48155 .policy = can_policy,
48156diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
48157index 674f367..ec3a31f 100644
48158--- a/drivers/net/can/vcan.c
48159+++ b/drivers/net/can/vcan.c
48160@@ -163,7 +163,7 @@ static void vcan_setup(struct net_device *dev)
48161 dev->destructor = free_netdev;
48162 }
48163
48164-static struct rtnl_link_ops vcan_link_ops __read_mostly = {
48165+static struct rtnl_link_ops vcan_link_ops = {
48166 .kind = "vcan",
48167 .setup = vcan_setup,
48168 };
48169diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
48170index 49adbf1..fff7ff8 100644
48171--- a/drivers/net/dummy.c
48172+++ b/drivers/net/dummy.c
48173@@ -164,7 +164,7 @@ static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
48174 return 0;
48175 }
48176
48177-static struct rtnl_link_ops dummy_link_ops __read_mostly = {
48178+static struct rtnl_link_ops dummy_link_ops = {
48179 .kind = DRV_NAME,
48180 .setup = dummy_setup,
48181 .validate = dummy_validate,
48182diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
48183index 0443654..4f0aa18 100644
48184--- a/drivers/net/ethernet/8390/ax88796.c
48185+++ b/drivers/net/ethernet/8390/ax88796.c
48186@@ -889,9 +889,11 @@ static int ax_probe(struct platform_device *pdev)
48187 if (ax->plat->reg_offsets)
48188 ei_local->reg_offset = ax->plat->reg_offsets;
48189 else {
48190+ resource_size_t _mem_size = mem_size;
48191+ do_div(_mem_size, 0x18);
48192 ei_local->reg_offset = ax->reg_offsets;
48193 for (ret = 0; ret < 0x18; ret++)
48194- ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
48195+ ax->reg_offsets[ret] = _mem_size * ret;
48196 }
48197
48198 if (!request_mem_region(mem->start, mem_size, pdev->name)) {
48199diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
48200index 6725dc0..163549c 100644
48201--- a/drivers/net/ethernet/altera/altera_tse_main.c
48202+++ b/drivers/net/ethernet/altera/altera_tse_main.c
48203@@ -1216,7 +1216,7 @@ static int tse_shutdown(struct net_device *dev)
48204 return 0;
48205 }
48206
48207-static struct net_device_ops altera_tse_netdev_ops = {
48208+static net_device_ops_no_const altera_tse_netdev_ops __read_only = {
48209 .ndo_open = tse_open,
48210 .ndo_stop = tse_shutdown,
48211 .ndo_start_xmit = tse_start_xmit,
48212@@ -1453,11 +1453,13 @@ static int altera_tse_probe(struct platform_device *pdev)
48213 ndev->netdev_ops = &altera_tse_netdev_ops;
48214 altera_tse_set_ethtool_ops(ndev);
48215
48216+ pax_open_kernel();
48217 altera_tse_netdev_ops.ndo_set_rx_mode = tse_set_rx_mode;
48218
48219 if (priv->hash_filter)
48220 altera_tse_netdev_ops.ndo_set_rx_mode =
48221 tse_set_rx_mode_hashfilter;
48222+ pax_close_kernel();
48223
48224 /* Scatter/gather IO is not supported,
48225 * so it is turned off
48226diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48227index 29a0927..5a348e24 100644
48228--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48229+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48230@@ -1122,14 +1122,14 @@ do { \
48231 * operations, everything works on mask values.
48232 */
48233 #define XMDIO_READ(_pdata, _mmd, _reg) \
48234- ((_pdata)->hw_if.read_mmd_regs((_pdata), 0, \
48235+ ((_pdata)->hw_if->read_mmd_regs((_pdata), 0, \
48236 MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
48237
48238 #define XMDIO_READ_BITS(_pdata, _mmd, _reg, _mask) \
48239 (XMDIO_READ((_pdata), _mmd, _reg) & _mask)
48240
48241 #define XMDIO_WRITE(_pdata, _mmd, _reg, _val) \
48242- ((_pdata)->hw_if.write_mmd_regs((_pdata), 0, \
48243+ ((_pdata)->hw_if->write_mmd_regs((_pdata), 0, \
48244 MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
48245
48246 #define XMDIO_WRITE_BITS(_pdata, _mmd, _reg, _mask, _val) \
48247diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48248index 8a50b01..39c1ad0 100644
48249--- a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48250+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48251@@ -187,7 +187,7 @@ static int xgbe_dcb_ieee_setets(struct net_device *netdev,
48252
48253 memcpy(pdata->ets, ets, sizeof(*pdata->ets));
48254
48255- pdata->hw_if.config_dcb_tc(pdata);
48256+ pdata->hw_if->config_dcb_tc(pdata);
48257
48258 return 0;
48259 }
48260@@ -226,7 +226,7 @@ static int xgbe_dcb_ieee_setpfc(struct net_device *netdev,
48261
48262 memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc));
48263
48264- pdata->hw_if.config_dcb_pfc(pdata);
48265+ pdata->hw_if->config_dcb_pfc(pdata);
48266
48267 return 0;
48268 }
48269diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48270index d81fc6b..6f8ab25 100644
48271--- a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48272+++ b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48273@@ -347,7 +347,7 @@ static int xgbe_map_rx_buffer(struct xgbe_prv_data *pdata,
48274
48275 static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
48276 {
48277- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48278+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48279 struct xgbe_channel *channel;
48280 struct xgbe_ring *ring;
48281 struct xgbe_ring_data *rdata;
48282@@ -388,7 +388,7 @@ static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
48283
48284 static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata)
48285 {
48286- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48287+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48288 struct xgbe_channel *channel;
48289 struct xgbe_ring *ring;
48290 struct xgbe_ring_desc *rdesc;
48291@@ -620,17 +620,12 @@ err_out:
48292 return 0;
48293 }
48294
48295-void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
48296-{
48297- DBGPR("-->xgbe_init_function_ptrs_desc\n");
48298-
48299- desc_if->alloc_ring_resources = xgbe_alloc_ring_resources;
48300- desc_if->free_ring_resources = xgbe_free_ring_resources;
48301- desc_if->map_tx_skb = xgbe_map_tx_skb;
48302- desc_if->map_rx_buffer = xgbe_map_rx_buffer;
48303- desc_if->unmap_rdata = xgbe_unmap_rdata;
48304- desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init;
48305- desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init;
48306-
48307- DBGPR("<--xgbe_init_function_ptrs_desc\n");
48308-}
48309+const struct xgbe_desc_if default_xgbe_desc_if = {
48310+ .alloc_ring_resources = xgbe_alloc_ring_resources,
48311+ .free_ring_resources = xgbe_free_ring_resources,
48312+ .map_tx_skb = xgbe_map_tx_skb,
48313+ .map_rx_buffer = xgbe_map_rx_buffer,
48314+ .unmap_rdata = xgbe_unmap_rdata,
48315+ .wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init,
48316+ .wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init,
48317+};
48318diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48319index 400757b..d8c53f6 100644
48320--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48321+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48322@@ -2748,7 +2748,7 @@ static void xgbe_powerdown_rx(struct xgbe_prv_data *pdata)
48323
48324 static int xgbe_init(struct xgbe_prv_data *pdata)
48325 {
48326- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48327+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48328 int ret;
48329
48330 DBGPR("-->xgbe_init\n");
48331@@ -2813,108 +2813,103 @@ static int xgbe_init(struct xgbe_prv_data *pdata)
48332 return 0;
48333 }
48334
48335-void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
48336-{
48337- DBGPR("-->xgbe_init_function_ptrs\n");
48338-
48339- hw_if->tx_complete = xgbe_tx_complete;
48340-
48341- hw_if->set_promiscuous_mode = xgbe_set_promiscuous_mode;
48342- hw_if->set_all_multicast_mode = xgbe_set_all_multicast_mode;
48343- hw_if->add_mac_addresses = xgbe_add_mac_addresses;
48344- hw_if->set_mac_address = xgbe_set_mac_address;
48345-
48346- hw_if->enable_rx_csum = xgbe_enable_rx_csum;
48347- hw_if->disable_rx_csum = xgbe_disable_rx_csum;
48348-
48349- hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping;
48350- hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping;
48351- hw_if->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering;
48352- hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering;
48353- hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table;
48354-
48355- hw_if->read_mmd_regs = xgbe_read_mmd_regs;
48356- hw_if->write_mmd_regs = xgbe_write_mmd_regs;
48357-
48358- hw_if->set_gmii_speed = xgbe_set_gmii_speed;
48359- hw_if->set_gmii_2500_speed = xgbe_set_gmii_2500_speed;
48360- hw_if->set_xgmii_speed = xgbe_set_xgmii_speed;
48361-
48362- hw_if->enable_tx = xgbe_enable_tx;
48363- hw_if->disable_tx = xgbe_disable_tx;
48364- hw_if->enable_rx = xgbe_enable_rx;
48365- hw_if->disable_rx = xgbe_disable_rx;
48366-
48367- hw_if->powerup_tx = xgbe_powerup_tx;
48368- hw_if->powerdown_tx = xgbe_powerdown_tx;
48369- hw_if->powerup_rx = xgbe_powerup_rx;
48370- hw_if->powerdown_rx = xgbe_powerdown_rx;
48371-
48372- hw_if->dev_xmit = xgbe_dev_xmit;
48373- hw_if->dev_read = xgbe_dev_read;
48374- hw_if->enable_int = xgbe_enable_int;
48375- hw_if->disable_int = xgbe_disable_int;
48376- hw_if->init = xgbe_init;
48377- hw_if->exit = xgbe_exit;
48378+const struct xgbe_hw_if default_xgbe_hw_if = {
48379+ .tx_complete = xgbe_tx_complete,
48380+
48381+ .set_promiscuous_mode = xgbe_set_promiscuous_mode,
48382+ .set_all_multicast_mode = xgbe_set_all_multicast_mode,
48383+ .add_mac_addresses = xgbe_add_mac_addresses,
48384+ .set_mac_address = xgbe_set_mac_address,
48385+
48386+ .enable_rx_csum = xgbe_enable_rx_csum,
48387+ .disable_rx_csum = xgbe_disable_rx_csum,
48388+
48389+ .enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping,
48390+ .disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping,
48391+ .enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering,
48392+ .disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering,
48393+ .update_vlan_hash_table = xgbe_update_vlan_hash_table,
48394+
48395+ .read_mmd_regs = xgbe_read_mmd_regs,
48396+ .write_mmd_regs = xgbe_write_mmd_regs,
48397+
48398+ .set_gmii_speed = xgbe_set_gmii_speed,
48399+ .set_gmii_2500_speed = xgbe_set_gmii_2500_speed,
48400+ .set_xgmii_speed = xgbe_set_xgmii_speed,
48401+
48402+ .enable_tx = xgbe_enable_tx,
48403+ .disable_tx = xgbe_disable_tx,
48404+ .enable_rx = xgbe_enable_rx,
48405+ .disable_rx = xgbe_disable_rx,
48406+
48407+ .powerup_tx = xgbe_powerup_tx,
48408+ .powerdown_tx = xgbe_powerdown_tx,
48409+ .powerup_rx = xgbe_powerup_rx,
48410+ .powerdown_rx = xgbe_powerdown_rx,
48411+
48412+ .dev_xmit = xgbe_dev_xmit,
48413+ .dev_read = xgbe_dev_read,
48414+ .enable_int = xgbe_enable_int,
48415+ .disable_int = xgbe_disable_int,
48416+ .init = xgbe_init,
48417+ .exit = xgbe_exit,
48418
48419 /* Descriptor related Sequences have to be initialized here */
48420- hw_if->tx_desc_init = xgbe_tx_desc_init;
48421- hw_if->rx_desc_init = xgbe_rx_desc_init;
48422- hw_if->tx_desc_reset = xgbe_tx_desc_reset;
48423- hw_if->rx_desc_reset = xgbe_rx_desc_reset;
48424- hw_if->is_last_desc = xgbe_is_last_desc;
48425- hw_if->is_context_desc = xgbe_is_context_desc;
48426- hw_if->tx_start_xmit = xgbe_tx_start_xmit;
48427+ .tx_desc_init = xgbe_tx_desc_init,
48428+ .rx_desc_init = xgbe_rx_desc_init,
48429+ .tx_desc_reset = xgbe_tx_desc_reset,
48430+ .rx_desc_reset = xgbe_rx_desc_reset,
48431+ .is_last_desc = xgbe_is_last_desc,
48432+ .is_context_desc = xgbe_is_context_desc,
48433+ .tx_start_xmit = xgbe_tx_start_xmit,
48434
48435 /* For FLOW ctrl */
48436- hw_if->config_tx_flow_control = xgbe_config_tx_flow_control;
48437- hw_if->config_rx_flow_control = xgbe_config_rx_flow_control;
48438+ .config_tx_flow_control = xgbe_config_tx_flow_control,
48439+ .config_rx_flow_control = xgbe_config_rx_flow_control,
48440
48441 /* For RX coalescing */
48442- hw_if->config_rx_coalesce = xgbe_config_rx_coalesce;
48443- hw_if->config_tx_coalesce = xgbe_config_tx_coalesce;
48444- hw_if->usec_to_riwt = xgbe_usec_to_riwt;
48445- hw_if->riwt_to_usec = xgbe_riwt_to_usec;
48446+ .config_rx_coalesce = xgbe_config_rx_coalesce,
48447+ .config_tx_coalesce = xgbe_config_tx_coalesce,
48448+ .usec_to_riwt = xgbe_usec_to_riwt,
48449+ .riwt_to_usec = xgbe_riwt_to_usec,
48450
48451 /* For RX and TX threshold config */
48452- hw_if->config_rx_threshold = xgbe_config_rx_threshold;
48453- hw_if->config_tx_threshold = xgbe_config_tx_threshold;
48454+ .config_rx_threshold = xgbe_config_rx_threshold,
48455+ .config_tx_threshold = xgbe_config_tx_threshold,
48456
48457 /* For RX and TX Store and Forward Mode config */
48458- hw_if->config_rsf_mode = xgbe_config_rsf_mode;
48459- hw_if->config_tsf_mode = xgbe_config_tsf_mode;
48460+ .config_rsf_mode = xgbe_config_rsf_mode,
48461+ .config_tsf_mode = xgbe_config_tsf_mode,
48462
48463 /* For TX DMA Operating on Second Frame config */
48464- hw_if->config_osp_mode = xgbe_config_osp_mode;
48465+ .config_osp_mode = xgbe_config_osp_mode,
48466
48467 /* For RX and TX PBL config */
48468- hw_if->config_rx_pbl_val = xgbe_config_rx_pbl_val;
48469- hw_if->get_rx_pbl_val = xgbe_get_rx_pbl_val;
48470- hw_if->config_tx_pbl_val = xgbe_config_tx_pbl_val;
48471- hw_if->get_tx_pbl_val = xgbe_get_tx_pbl_val;
48472- hw_if->config_pblx8 = xgbe_config_pblx8;
48473+ .config_rx_pbl_val = xgbe_config_rx_pbl_val,
48474+ .get_rx_pbl_val = xgbe_get_rx_pbl_val,
48475+ .config_tx_pbl_val = xgbe_config_tx_pbl_val,
48476+ .get_tx_pbl_val = xgbe_get_tx_pbl_val,
48477+ .config_pblx8 = xgbe_config_pblx8,
48478
48479 /* For MMC statistics support */
48480- hw_if->tx_mmc_int = xgbe_tx_mmc_int;
48481- hw_if->rx_mmc_int = xgbe_rx_mmc_int;
48482- hw_if->read_mmc_stats = xgbe_read_mmc_stats;
48483+ .tx_mmc_int = xgbe_tx_mmc_int,
48484+ .rx_mmc_int = xgbe_rx_mmc_int,
48485+ .read_mmc_stats = xgbe_read_mmc_stats,
48486
48487 /* For PTP config */
48488- hw_if->config_tstamp = xgbe_config_tstamp;
48489- hw_if->update_tstamp_addend = xgbe_update_tstamp_addend;
48490- hw_if->set_tstamp_time = xgbe_set_tstamp_time;
48491- hw_if->get_tstamp_time = xgbe_get_tstamp_time;
48492- hw_if->get_tx_tstamp = xgbe_get_tx_tstamp;
48493+ .config_tstamp = xgbe_config_tstamp,
48494+ .update_tstamp_addend = xgbe_update_tstamp_addend,
48495+ .set_tstamp_time = xgbe_set_tstamp_time,
48496+ .get_tstamp_time = xgbe_get_tstamp_time,
48497+ .get_tx_tstamp = xgbe_get_tx_tstamp,
48498
48499 /* For Data Center Bridging config */
48500- hw_if->config_dcb_tc = xgbe_config_dcb_tc;
48501- hw_if->config_dcb_pfc = xgbe_config_dcb_pfc;
48502+ .config_dcb_tc = xgbe_config_dcb_tc,
48503+ .config_dcb_pfc = xgbe_config_dcb_pfc,
48504
48505 /* For Receive Side Scaling */
48506- hw_if->enable_rss = xgbe_enable_rss;
48507- hw_if->disable_rss = xgbe_disable_rss;
48508- hw_if->set_rss_hash_key = xgbe_set_rss_hash_key;
48509- hw_if->set_rss_lookup_table = xgbe_set_rss_lookup_table;
48510-
48511- DBGPR("<--xgbe_init_function_ptrs\n");
48512-}
48513+ .enable_rss = xgbe_enable_rss,
48514+ .disable_rss = xgbe_disable_rss,
48515+ .set_rss_hash_key = xgbe_set_rss_hash_key,
48516+ .set_rss_lookup_table = xgbe_set_rss_lookup_table,
48517+};
48518diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48519index 885b02b..4b31a4c 100644
48520--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48521+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48522@@ -244,7 +244,7 @@ static int xgbe_maybe_stop_tx_queue(struct xgbe_channel *channel,
48523 * support, tell it now
48524 */
48525 if (ring->tx.xmit_more)
48526- pdata->hw_if.tx_start_xmit(channel, ring);
48527+ pdata->hw_if->tx_start_xmit(channel, ring);
48528
48529 return NETDEV_TX_BUSY;
48530 }
48531@@ -272,7 +272,7 @@ static int xgbe_calc_rx_buf_size(struct net_device *netdev, unsigned int mtu)
48532
48533 static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
48534 {
48535- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48536+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48537 struct xgbe_channel *channel;
48538 enum xgbe_int int_id;
48539 unsigned int i;
48540@@ -294,7 +294,7 @@ static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
48541
48542 static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
48543 {
48544- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48545+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48546 struct xgbe_channel *channel;
48547 enum xgbe_int int_id;
48548 unsigned int i;
48549@@ -317,7 +317,7 @@ static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
48550 static irqreturn_t xgbe_isr(int irq, void *data)
48551 {
48552 struct xgbe_prv_data *pdata = data;
48553- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48554+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48555 struct xgbe_channel *channel;
48556 unsigned int dma_isr, dma_ch_isr;
48557 unsigned int mac_isr, mac_tssr;
48558@@ -673,7 +673,7 @@ static void xgbe_free_irqs(struct xgbe_prv_data *pdata)
48559
48560 void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
48561 {
48562- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48563+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48564
48565 DBGPR("-->xgbe_init_tx_coalesce\n");
48566
48567@@ -687,7 +687,7 @@ void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
48568
48569 void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
48570 {
48571- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48572+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48573
48574 DBGPR("-->xgbe_init_rx_coalesce\n");
48575
48576@@ -701,7 +701,7 @@ void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
48577
48578 static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
48579 {
48580- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48581+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48582 struct xgbe_channel *channel;
48583 struct xgbe_ring *ring;
48584 struct xgbe_ring_data *rdata;
48585@@ -726,7 +726,7 @@ static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
48586
48587 static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
48588 {
48589- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48590+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48591 struct xgbe_channel *channel;
48592 struct xgbe_ring *ring;
48593 struct xgbe_ring_data *rdata;
48594@@ -752,7 +752,7 @@ static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
48595 static void xgbe_adjust_link(struct net_device *netdev)
48596 {
48597 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48598- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48599+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48600 struct phy_device *phydev = pdata->phydev;
48601 int new_state = 0;
48602
48603@@ -860,7 +860,7 @@ static void xgbe_phy_exit(struct xgbe_prv_data *pdata)
48604 int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
48605 {
48606 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48607- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48608+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48609 unsigned long flags;
48610
48611 DBGPR("-->xgbe_powerdown\n");
48612@@ -898,7 +898,7 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
48613 int xgbe_powerup(struct net_device *netdev, unsigned int caller)
48614 {
48615 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48616- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48617+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48618 unsigned long flags;
48619
48620 DBGPR("-->xgbe_powerup\n");
48621@@ -935,7 +935,7 @@ int xgbe_powerup(struct net_device *netdev, unsigned int caller)
48622
48623 static int xgbe_start(struct xgbe_prv_data *pdata)
48624 {
48625- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48626+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48627 struct net_device *netdev = pdata->netdev;
48628 int ret;
48629
48630@@ -976,7 +976,7 @@ err_napi:
48631
48632 static void xgbe_stop(struct xgbe_prv_data *pdata)
48633 {
48634- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48635+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48636 struct xgbe_channel *channel;
48637 struct net_device *netdev = pdata->netdev;
48638 struct netdev_queue *txq;
48639@@ -1203,7 +1203,7 @@ static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata,
48640 return -ERANGE;
48641 }
48642
48643- pdata->hw_if.config_tstamp(pdata, mac_tscr);
48644+ pdata->hw_if->config_tstamp(pdata, mac_tscr);
48645
48646 memcpy(&pdata->tstamp_config, &config, sizeof(config));
48647
48648@@ -1352,7 +1352,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
48649 static int xgbe_open(struct net_device *netdev)
48650 {
48651 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48652- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48653+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48654 int ret;
48655
48656 DBGPR("-->xgbe_open\n");
48657@@ -1424,7 +1424,7 @@ err_phy_init:
48658 static int xgbe_close(struct net_device *netdev)
48659 {
48660 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48661- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48662+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48663
48664 DBGPR("-->xgbe_close\n");
48665
48666@@ -1452,8 +1452,8 @@ static int xgbe_close(struct net_device *netdev)
48667 static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
48668 {
48669 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48670- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48671- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48672+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48673+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48674 struct xgbe_channel *channel;
48675 struct xgbe_ring *ring;
48676 struct xgbe_packet_data *packet;
48677@@ -1521,7 +1521,7 @@ tx_netdev_return:
48678 static void xgbe_set_rx_mode(struct net_device *netdev)
48679 {
48680 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48681- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48682+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48683 unsigned int pr_mode, am_mode;
48684
48685 DBGPR("-->xgbe_set_rx_mode\n");
48686@@ -1540,7 +1540,7 @@ static void xgbe_set_rx_mode(struct net_device *netdev)
48687 static int xgbe_set_mac_address(struct net_device *netdev, void *addr)
48688 {
48689 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48690- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48691+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48692 struct sockaddr *saddr = addr;
48693
48694 DBGPR("-->xgbe_set_mac_address\n");
48695@@ -1607,7 +1607,7 @@ static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
48696
48697 DBGPR("-->%s\n", __func__);
48698
48699- pdata->hw_if.read_mmc_stats(pdata);
48700+ pdata->hw_if->read_mmc_stats(pdata);
48701
48702 s->rx_packets = pstats->rxframecount_gb;
48703 s->rx_bytes = pstats->rxoctetcount_gb;
48704@@ -1634,7 +1634,7 @@ static int xgbe_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
48705 u16 vid)
48706 {
48707 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48708- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48709+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48710
48711 DBGPR("-->%s\n", __func__);
48712
48713@@ -1650,7 +1650,7 @@ static int xgbe_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
48714 u16 vid)
48715 {
48716 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48717- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48718+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48719
48720 DBGPR("-->%s\n", __func__);
48721
48722@@ -1716,7 +1716,7 @@ static int xgbe_set_features(struct net_device *netdev,
48723 netdev_features_t features)
48724 {
48725 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48726- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48727+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48728 netdev_features_t rxhash, rxcsum, rxvlan, rxvlan_filter;
48729 int ret = 0;
48730
48731@@ -1781,8 +1781,8 @@ struct net_device_ops *xgbe_get_netdev_ops(void)
48732 static void xgbe_rx_refresh(struct xgbe_channel *channel)
48733 {
48734 struct xgbe_prv_data *pdata = channel->pdata;
48735- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48736- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48737+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48738+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48739 struct xgbe_ring *ring = channel->rx_ring;
48740 struct xgbe_ring_data *rdata;
48741
48742@@ -1835,8 +1835,8 @@ static struct sk_buff *xgbe_create_skb(struct xgbe_prv_data *pdata,
48743 static int xgbe_tx_poll(struct xgbe_channel *channel)
48744 {
48745 struct xgbe_prv_data *pdata = channel->pdata;
48746- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48747- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48748+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48749+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48750 struct xgbe_ring *ring = channel->tx_ring;
48751 struct xgbe_ring_data *rdata;
48752 struct xgbe_ring_desc *rdesc;
48753@@ -1901,7 +1901,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
48754 static int xgbe_rx_poll(struct xgbe_channel *channel, int budget)
48755 {
48756 struct xgbe_prv_data *pdata = channel->pdata;
48757- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48758+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48759 struct xgbe_ring *ring = channel->rx_ring;
48760 struct xgbe_ring_data *rdata;
48761 struct xgbe_packet_data *packet;
48762diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48763index ebf4893..a8f51c6 100644
48764--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48765+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48766@@ -203,7 +203,7 @@ static void xgbe_get_ethtool_stats(struct net_device *netdev,
48767
48768 DBGPR("-->%s\n", __func__);
48769
48770- pdata->hw_if.read_mmc_stats(pdata);
48771+ pdata->hw_if->read_mmc_stats(pdata);
48772 for (i = 0; i < XGBE_STATS_COUNT; i++) {
48773 stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
48774 *data++ = *(u64 *)stat;
48775@@ -378,7 +378,7 @@ static int xgbe_get_coalesce(struct net_device *netdev,
48776 struct ethtool_coalesce *ec)
48777 {
48778 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48779- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48780+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48781 unsigned int riwt;
48782
48783 DBGPR("-->xgbe_get_coalesce\n");
48784@@ -401,7 +401,7 @@ static int xgbe_set_coalesce(struct net_device *netdev,
48785 struct ethtool_coalesce *ec)
48786 {
48787 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48788- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48789+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48790 unsigned int rx_frames, rx_riwt, rx_usecs;
48791 unsigned int tx_frames, tx_usecs;
48792
48793@@ -536,7 +536,7 @@ static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
48794 const u8 *key, const u8 hfunc)
48795 {
48796 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48797- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48798+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48799 unsigned int ret;
48800
48801 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
48802diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48803index 32dd651..225cca3 100644
48804--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48805+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48806@@ -159,12 +159,6 @@ static void xgbe_default_config(struct xgbe_prv_data *pdata)
48807 DBGPR("<--xgbe_default_config\n");
48808 }
48809
48810-static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
48811-{
48812- xgbe_init_function_ptrs_dev(&pdata->hw_if);
48813- xgbe_init_function_ptrs_desc(&pdata->desc_if);
48814-}
48815-
48816 #ifdef CONFIG_ACPI
48817 static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
48818 {
48819@@ -396,9 +390,8 @@ static int xgbe_probe(struct platform_device *pdev)
48820 memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
48821
48822 /* Set all the function pointers */
48823- xgbe_init_all_fptrs(pdata);
48824- hw_if = &pdata->hw_if;
48825- desc_if = &pdata->desc_if;
48826+ hw_if = pdata->hw_if = &default_xgbe_hw_if;
48827+ desc_if = pdata->desc_if = &default_xgbe_desc_if;
48828
48829 /* Issue software reset to device */
48830 hw_if->exit(pdata);
48831diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48832index 59e267f..0842a88 100644
48833--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48834+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48835@@ -126,7 +126,7 @@
48836 static int xgbe_mdio_read(struct mii_bus *mii, int prtad, int mmd_reg)
48837 {
48838 struct xgbe_prv_data *pdata = mii->priv;
48839- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48840+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48841 int mmd_data;
48842
48843 DBGPR_MDIO("-->xgbe_mdio_read: prtad=%#x mmd_reg=%#x\n",
48844@@ -143,7 +143,7 @@ static int xgbe_mdio_write(struct mii_bus *mii, int prtad, int mmd_reg,
48845 u16 mmd_val)
48846 {
48847 struct xgbe_prv_data *pdata = mii->priv;
48848- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48849+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48850 int mmd_data = mmd_val;
48851
48852 DBGPR_MDIO("-->xgbe_mdio_write: prtad=%#x mmd_reg=%#x mmd_data=%#x\n",
48853diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48854index f326178..8bd7daf 100644
48855--- a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48856+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48857@@ -129,7 +129,7 @@ static cycle_t xgbe_cc_read(const struct cyclecounter *cc)
48858 tstamp_cc);
48859 u64 nsec;
48860
48861- nsec = pdata->hw_if.get_tstamp_time(pdata);
48862+ nsec = pdata->hw_if->get_tstamp_time(pdata);
48863
48864 return nsec;
48865 }
48866@@ -158,7 +158,7 @@ static int xgbe_adjfreq(struct ptp_clock_info *info, s32 delta)
48867
48868 spin_lock_irqsave(&pdata->tstamp_lock, flags);
48869
48870- pdata->hw_if.update_tstamp_addend(pdata, addend);
48871+ pdata->hw_if->update_tstamp_addend(pdata, addend);
48872
48873 spin_unlock_irqrestore(&pdata->tstamp_lock, flags);
48874
48875diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
48876index 13e8f95..1d8beef 100644
48877--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
48878+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
48879@@ -675,8 +675,8 @@ struct xgbe_prv_data {
48880 int dev_irq;
48881 unsigned int per_channel_irq;
48882
48883- struct xgbe_hw_if hw_if;
48884- struct xgbe_desc_if desc_if;
48885+ struct xgbe_hw_if *hw_if;
48886+ struct xgbe_desc_if *desc_if;
48887
48888 /* AXI DMA settings */
48889 unsigned int coherent;
48890@@ -798,6 +798,9 @@ struct xgbe_prv_data {
48891 #endif
48892 };
48893
48894+extern const struct xgbe_hw_if default_xgbe_hw_if;
48895+extern const struct xgbe_desc_if default_xgbe_desc_if;
48896+
48897 /* Function prototypes*/
48898
48899 void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
48900diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48901index adcacda..fa6e0ae 100644
48902--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48903+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48904@@ -1065,7 +1065,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
48905 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
48906 {
48907 /* RX_MODE controlling object */
48908- bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
48909+ bnx2x_init_rx_mode_obj(bp);
48910
48911 /* multicast configuration controlling object */
48912 bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
48913diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48914index 07cdf9b..b08ecc7 100644
48915--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48916+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48917@@ -2329,15 +2329,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
48918 return rc;
48919 }
48920
48921-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
48922- struct bnx2x_rx_mode_obj *o)
48923+void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
48924 {
48925 if (CHIP_IS_E1x(bp)) {
48926- o->wait_comp = bnx2x_empty_rx_mode_wait;
48927- o->config_rx_mode = bnx2x_set_rx_mode_e1x;
48928+ bp->rx_mode_obj.wait_comp = bnx2x_empty_rx_mode_wait;
48929+ bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
48930 } else {
48931- o->wait_comp = bnx2x_wait_rx_mode_comp_e2;
48932- o->config_rx_mode = bnx2x_set_rx_mode_e2;
48933+ bp->rx_mode_obj.wait_comp = bnx2x_wait_rx_mode_comp_e2;
48934+ bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
48935 }
48936 }
48937
48938diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48939index 86baecb..ff3bb46 100644
48940--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48941+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48942@@ -1411,8 +1411,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
48943
48944 /********************* RX MODE ****************/
48945
48946-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
48947- struct bnx2x_rx_mode_obj *o);
48948+void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
48949
48950 /**
48951 * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
48952diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
48953index 31c9f82..e65e986 100644
48954--- a/drivers/net/ethernet/broadcom/tg3.h
48955+++ b/drivers/net/ethernet/broadcom/tg3.h
48956@@ -150,6 +150,7 @@
48957 #define CHIPREV_ID_5750_A0 0x4000
48958 #define CHIPREV_ID_5750_A1 0x4001
48959 #define CHIPREV_ID_5750_A3 0x4003
48960+#define CHIPREV_ID_5750_C1 0x4201
48961 #define CHIPREV_ID_5750_C2 0x4202
48962 #define CHIPREV_ID_5752_A0_HW 0x5000
48963 #define CHIPREV_ID_5752_A0 0x6000
48964diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
48965index 903466e..b285864 100644
48966--- a/drivers/net/ethernet/brocade/bna/bna_enet.c
48967+++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
48968@@ -1693,10 +1693,10 @@ bna_cb_ioceth_reset(void *arg)
48969 }
48970
48971 static struct bfa_ioc_cbfn bna_ioceth_cbfn = {
48972- bna_cb_ioceth_enable,
48973- bna_cb_ioceth_disable,
48974- bna_cb_ioceth_hbfail,
48975- bna_cb_ioceth_reset
48976+ .enable_cbfn = bna_cb_ioceth_enable,
48977+ .disable_cbfn = bna_cb_ioceth_disable,
48978+ .hbfail_cbfn = bna_cb_ioceth_hbfail,
48979+ .reset_cbfn = bna_cb_ioceth_reset
48980 };
48981
48982 static void bna_attr_init(struct bna_ioceth *ioceth)
48983diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48984index 8cffcdf..aadf043 100644
48985--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48986+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48987@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
48988 */
48989 struct l2t_skb_cb {
48990 arp_failure_handler_func arp_failure_handler;
48991-};
48992+} __no_const;
48993
48994 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
48995
48996diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
48997index d929951..a2c23f5 100644
48998--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
48999+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
49000@@ -2215,7 +2215,7 @@ static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
49001
49002 int i;
49003 struct adapter *ap = netdev2adap(dev);
49004- static const unsigned int *reg_ranges;
49005+ const unsigned int *reg_ranges;
49006 int arr_size = 0, buf_size = 0;
49007
49008 if (is_t4(ap->params.chip)) {
49009diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
49010index badff18..e15c4ec 100644
49011--- a/drivers/net/ethernet/dec/tulip/de4x5.c
49012+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
49013@@ -5373,7 +5373,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
49014 for (i=0; i<ETH_ALEN; i++) {
49015 tmp.addr[i] = dev->dev_addr[i];
49016 }
49017- if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
49018+ if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
49019 break;
49020
49021 case DE4X5_SET_HWADDR: /* Set the hardware address */
49022@@ -5413,7 +5413,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
49023 spin_lock_irqsave(&lp->lock, flags);
49024 memcpy(&statbuf, &lp->pktStats, ioc->len);
49025 spin_unlock_irqrestore(&lp->lock, flags);
49026- if (copy_to_user(ioc->data, &statbuf, ioc->len))
49027+ if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
49028 return -EFAULT;
49029 break;
49030 }
49031diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
49032index e6b790f..051ba2d 100644
49033--- a/drivers/net/ethernet/emulex/benet/be_main.c
49034+++ b/drivers/net/ethernet/emulex/benet/be_main.c
49035@@ -536,7 +536,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
49036
49037 if (wrapped)
49038 newacc += 65536;
49039- ACCESS_ONCE(*acc) = newacc;
49040+ ACCESS_ONCE_RW(*acc) = newacc;
49041 }
49042
49043 static void populate_erx_stats(struct be_adapter *adapter,
49044diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
49045index 6d0c5d5..55be363 100644
49046--- a/drivers/net/ethernet/faraday/ftgmac100.c
49047+++ b/drivers/net/ethernet/faraday/ftgmac100.c
49048@@ -30,6 +30,8 @@
49049 #include <linux/netdevice.h>
49050 #include <linux/phy.h>
49051 #include <linux/platform_device.h>
49052+#include <linux/interrupt.h>
49053+#include <linux/irqreturn.h>
49054 #include <net/ip.h>
49055
49056 #include "ftgmac100.h"
49057diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
49058index dce5f7b..2433466 100644
49059--- a/drivers/net/ethernet/faraday/ftmac100.c
49060+++ b/drivers/net/ethernet/faraday/ftmac100.c
49061@@ -31,6 +31,8 @@
49062 #include <linux/module.h>
49063 #include <linux/netdevice.h>
49064 #include <linux/platform_device.h>
49065+#include <linux/interrupt.h>
49066+#include <linux/irqreturn.h>
49067
49068 #include "ftmac100.h"
49069
49070diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49071index fabcfa1..188fd22 100644
49072--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49073+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49074@@ -419,7 +419,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
49075 wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
49076
49077 /* Update the base adjustement value. */
49078- ACCESS_ONCE(pf->ptp_base_adj) = incval;
49079+ ACCESS_ONCE_RW(pf->ptp_base_adj) = incval;
49080 smp_mb(); /* Force the above update. */
49081 }
49082
49083diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49084index 79c00f5..8da39f6 100644
49085--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49086+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49087@@ -785,7 +785,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
49088 }
49089
49090 /* update the base incval used to calculate frequency adjustment */
49091- ACCESS_ONCE(adapter->base_incval) = incval;
49092+ ACCESS_ONCE_RW(adapter->base_incval) = incval;
49093 smp_mb();
49094
49095 /* need lock to prevent incorrect read while modifying cyclecounter */
49096diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49097index 8c234ec..757331f 100644
49098--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49099+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49100@@ -468,8 +468,8 @@ static bool mlx4_en_process_tx_cq(struct net_device *dev,
49101 wmb();
49102
49103 /* we want to dirty this cache line once */
49104- ACCESS_ONCE(ring->last_nr_txbb) = last_nr_txbb;
49105- ACCESS_ONCE(ring->cons) = ring_cons + txbbs_skipped;
49106+ ACCESS_ONCE_RW(ring->last_nr_txbb) = last_nr_txbb;
49107+ ACCESS_ONCE_RW(ring->cons) = ring_cons + txbbs_skipped;
49108
49109 netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
49110
49111diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
49112index 6223930..975033d 100644
49113--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
49114+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
49115@@ -3457,7 +3457,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
49116 struct __vxge_hw_fifo *fifo;
49117 struct vxge_hw_fifo_config *config;
49118 u32 txdl_size, txdl_per_memblock;
49119- struct vxge_hw_mempool_cbs fifo_mp_callback;
49120+ static struct vxge_hw_mempool_cbs fifo_mp_callback = {
49121+ .item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
49122+ };
49123+
49124 struct __vxge_hw_virtualpath *vpath;
49125
49126 if ((vp == NULL) || (attr == NULL)) {
49127@@ -3540,8 +3543,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
49128 goto exit;
49129 }
49130
49131- fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
49132-
49133 fifo->mempool =
49134 __vxge_hw_mempool_create(vpath->hldev,
49135 fifo->config->memblock_size,
49136diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49137index 2bb48d5..d1a865d 100644
49138--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49139+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49140@@ -2324,7 +2324,9 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
49141 max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
49142 } else if (ret == QLC_83XX_DEFAULT_OPMODE) {
49143 ahw->nic_mode = QLCNIC_DEFAULT_MODE;
49144- adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
49145+ pax_open_kernel();
49146+ *(void **)&adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
49147+ pax_close_kernel();
49148 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49149 max_sds_rings = QLCNIC_MAX_SDS_RINGS;
49150 max_tx_rings = QLCNIC_MAX_TX_RINGS;
49151diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49152index be7d7a6..a8983f8 100644
49153--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49154+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49155@@ -207,17 +207,23 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
49156 case QLCNIC_NON_PRIV_FUNC:
49157 ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
49158 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49159- nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
49160+ pax_open_kernel();
49161+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
49162+ pax_close_kernel();
49163 break;
49164 case QLCNIC_PRIV_FUNC:
49165 ahw->op_mode = QLCNIC_PRIV_FUNC;
49166 ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
49167- nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
49168+ pax_open_kernel();
49169+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
49170+ pax_close_kernel();
49171 break;
49172 case QLCNIC_MGMT_FUNC:
49173 ahw->op_mode = QLCNIC_MGMT_FUNC;
49174 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49175- nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
49176+ pax_open_kernel();
49177+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
49178+ pax_close_kernel();
49179 break;
49180 default:
49181 dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
49182diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49183index 332bb8a..e6adcd1 100644
49184--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49185+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49186@@ -1285,7 +1285,7 @@ flash_temp:
49187 int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
49188 {
49189 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
49190- static const struct qlcnic_dump_operations *fw_dump_ops;
49191+ const struct qlcnic_dump_operations *fw_dump_ops;
49192 struct qlcnic_83xx_dump_template_hdr *hdr_83xx;
49193 u32 entry_offset, dump, no_entries, buf_offset = 0;
49194 int i, k, ops_cnt, ops_index, dump_size = 0;
49195diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
49196index c70ab40..00b28e0 100644
49197--- a/drivers/net/ethernet/realtek/r8169.c
49198+++ b/drivers/net/ethernet/realtek/r8169.c
49199@@ -788,22 +788,22 @@ struct rtl8169_private {
49200 struct mdio_ops {
49201 void (*write)(struct rtl8169_private *, int, int);
49202 int (*read)(struct rtl8169_private *, int);
49203- } mdio_ops;
49204+ } __no_const mdio_ops;
49205
49206 struct pll_power_ops {
49207 void (*down)(struct rtl8169_private *);
49208 void (*up)(struct rtl8169_private *);
49209- } pll_power_ops;
49210+ } __no_const pll_power_ops;
49211
49212 struct jumbo_ops {
49213 void (*enable)(struct rtl8169_private *);
49214 void (*disable)(struct rtl8169_private *);
49215- } jumbo_ops;
49216+ } __no_const jumbo_ops;
49217
49218 struct csi_ops {
49219 void (*write)(struct rtl8169_private *, int, int);
49220 u32 (*read)(struct rtl8169_private *, int);
49221- } csi_ops;
49222+ } __no_const csi_ops;
49223
49224 int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
49225 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
49226diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
49227index 6b861e3..204ac86 100644
49228--- a/drivers/net/ethernet/sfc/ptp.c
49229+++ b/drivers/net/ethernet/sfc/ptp.c
49230@@ -822,7 +822,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
49231 ptp->start.dma_addr);
49232
49233 /* Clear flag that signals MC ready */
49234- ACCESS_ONCE(*start) = 0;
49235+ ACCESS_ONCE_RW(*start) = 0;
49236 rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
49237 MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
49238 EFX_BUG_ON_PARANOID(rc);
49239diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
49240index 10b6173..b605dfd5 100644
49241--- a/drivers/net/ethernet/sfc/selftest.c
49242+++ b/drivers/net/ethernet/sfc/selftest.c
49243@@ -46,7 +46,7 @@ struct efx_loopback_payload {
49244 struct iphdr ip;
49245 struct udphdr udp;
49246 __be16 iteration;
49247- const char msg[64];
49248+ char msg[64];
49249 } __packed;
49250
49251 /* Loopback test source MAC address */
49252diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49253index 08c483b..2c4a553 100644
49254--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49255+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49256@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
49257
49258 writel(value, ioaddr + MMC_CNTRL);
49259
49260- pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
49261- MMC_CNTRL, value);
49262+// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
49263+// MMC_CNTRL, value);
49264 }
49265
49266 /* To mask all all interrupts.*/
49267diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
49268index 17e2766..c332f1e 100644
49269--- a/drivers/net/ethernet/via/via-rhine.c
49270+++ b/drivers/net/ethernet/via/via-rhine.c
49271@@ -2514,7 +2514,7 @@ static struct platform_driver rhine_driver_platform = {
49272 }
49273 };
49274
49275-static struct dmi_system_id rhine_dmi_table[] __initdata = {
49276+static const struct dmi_system_id rhine_dmi_table[] __initconst = {
49277 {
49278 .ident = "EPIA-M",
49279 .matches = {
49280diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
49281index 384ca4f..dd7d4f9 100644
49282--- a/drivers/net/hyperv/hyperv_net.h
49283+++ b/drivers/net/hyperv/hyperv_net.h
49284@@ -171,7 +171,7 @@ struct rndis_device {
49285 enum rndis_device_state state;
49286 bool link_state;
49287 bool link_change;
49288- atomic_t new_req_id;
49289+ atomic_unchecked_t new_req_id;
49290
49291 spinlock_t request_lock;
49292 struct list_head req_list;
49293diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
49294index 7816d98..7890614 100644
49295--- a/drivers/net/hyperv/rndis_filter.c
49296+++ b/drivers/net/hyperv/rndis_filter.c
49297@@ -102,7 +102,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
49298 * template
49299 */
49300 set = &rndis_msg->msg.set_req;
49301- set->req_id = atomic_inc_return(&dev->new_req_id);
49302+ set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
49303
49304 /* Add to the request list */
49305 spin_lock_irqsave(&dev->request_lock, flags);
49306@@ -918,7 +918,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
49307
49308 /* Setup the rndis set */
49309 halt = &request->request_msg.msg.halt_req;
49310- halt->req_id = atomic_inc_return(&dev->new_req_id);
49311+ halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
49312
49313 /* Ignore return since this msg is optional. */
49314 rndis_filter_send_request(dev, request);
49315diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
49316index 34f846b..4a0d5b1 100644
49317--- a/drivers/net/ifb.c
49318+++ b/drivers/net/ifb.c
49319@@ -253,7 +253,7 @@ static int ifb_validate(struct nlattr *tb[], struct nlattr *data[])
49320 return 0;
49321 }
49322
49323-static struct rtnl_link_ops ifb_link_ops __read_mostly = {
49324+static struct rtnl_link_ops ifb_link_ops = {
49325 .kind = "ifb",
49326 .priv_size = sizeof(struct ifb_private),
49327 .setup = ifb_setup,
49328diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
49329index 1df38bd..4bc20b0 100644
49330--- a/drivers/net/macvlan.c
49331+++ b/drivers/net/macvlan.c
49332@@ -335,7 +335,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port,
49333 free_nskb:
49334 kfree_skb(nskb);
49335 err:
49336- atomic_long_inc(&skb->dev->rx_dropped);
49337+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
49338 }
49339
49340 static void macvlan_flush_sources(struct macvlan_port *port,
49341@@ -1459,13 +1459,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
49342 int macvlan_link_register(struct rtnl_link_ops *ops)
49343 {
49344 /* common fields */
49345- ops->priv_size = sizeof(struct macvlan_dev);
49346- ops->validate = macvlan_validate;
49347- ops->maxtype = IFLA_MACVLAN_MAX;
49348- ops->policy = macvlan_policy;
49349- ops->changelink = macvlan_changelink;
49350- ops->get_size = macvlan_get_size;
49351- ops->fill_info = macvlan_fill_info;
49352+ pax_open_kernel();
49353+ *(size_t *)&ops->priv_size = sizeof(struct macvlan_dev);
49354+ *(void **)&ops->validate = macvlan_validate;
49355+ *(int *)&ops->maxtype = IFLA_MACVLAN_MAX;
49356+ *(const void **)&ops->policy = macvlan_policy;
49357+ *(void **)&ops->changelink = macvlan_changelink;
49358+ *(void **)&ops->get_size = macvlan_get_size;
49359+ *(void **)&ops->fill_info = macvlan_fill_info;
49360+ pax_close_kernel();
49361
49362 return rtnl_link_register(ops);
49363 };
49364@@ -1551,7 +1553,7 @@ static int macvlan_device_event(struct notifier_block *unused,
49365 return NOTIFY_DONE;
49366 }
49367
49368-static struct notifier_block macvlan_notifier_block __read_mostly = {
49369+static struct notifier_block macvlan_notifier_block = {
49370 .notifier_call = macvlan_device_event,
49371 };
49372
49373diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
49374index 27ecc5c..f636328 100644
49375--- a/drivers/net/macvtap.c
49376+++ b/drivers/net/macvtap.c
49377@@ -436,7 +436,7 @@ static void macvtap_setup(struct net_device *dev)
49378 dev->tx_queue_len = TUN_READQ_SIZE;
49379 }
49380
49381-static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
49382+static struct rtnl_link_ops macvtap_link_ops = {
49383 .kind = "macvtap",
49384 .setup = macvtap_setup,
49385 .newlink = macvtap_newlink,
49386@@ -1033,7 +1033,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
49387
49388 ret = 0;
49389 u = q->flags;
49390- if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
49391+ if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
49392 put_user(u, &ifr->ifr_flags))
49393 ret = -EFAULT;
49394 macvtap_put_vlan(vlan);
49395@@ -1217,7 +1217,7 @@ static int macvtap_device_event(struct notifier_block *unused,
49396 return NOTIFY_DONE;
49397 }
49398
49399-static struct notifier_block macvtap_notifier_block __read_mostly = {
49400+static struct notifier_block macvtap_notifier_block = {
49401 .notifier_call = macvtap_device_event,
49402 };
49403
49404diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
49405index 34924df..a747360 100644
49406--- a/drivers/net/nlmon.c
49407+++ b/drivers/net/nlmon.c
49408@@ -154,7 +154,7 @@ static int nlmon_validate(struct nlattr *tb[], struct nlattr *data[])
49409 return 0;
49410 }
49411
49412-static struct rtnl_link_ops nlmon_link_ops __read_mostly = {
49413+static struct rtnl_link_ops nlmon_link_ops = {
49414 .kind = "nlmon",
49415 .priv_size = sizeof(struct nlmon),
49416 .setup = nlmon_setup,
49417diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
49418index bdfe51f..e7845c7 100644
49419--- a/drivers/net/phy/phy_device.c
49420+++ b/drivers/net/phy/phy_device.c
49421@@ -218,7 +218,7 @@ EXPORT_SYMBOL(phy_device_create);
49422 * zero on success.
49423 *
49424 */
49425-static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
49426+static int get_phy_c45_ids(struct mii_bus *bus, int addr, int *phy_id,
49427 struct phy_c45_device_ids *c45_ids) {
49428 int phy_reg;
49429 int i, reg_addr;
49430@@ -288,7 +288,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
49431 * its return value is in turn returned.
49432 *
49433 */
49434-static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
49435+static int get_phy_id(struct mii_bus *bus, int addr, int *phy_id,
49436 bool is_c45, struct phy_c45_device_ids *c45_ids)
49437 {
49438 int phy_reg;
49439@@ -326,7 +326,7 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
49440 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
49441 {
49442 struct phy_c45_device_ids c45_ids = {0};
49443- u32 phy_id = 0;
49444+ int phy_id = 0;
49445 int r;
49446
49447 r = get_phy_id(bus, addr, &phy_id, is_c45, &c45_ids);
49448diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
49449index 9d15566..5ad4ef6 100644
49450--- a/drivers/net/ppp/ppp_generic.c
49451+++ b/drivers/net/ppp/ppp_generic.c
49452@@ -1022,7 +1022,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
49453 void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
49454 struct ppp_stats stats;
49455 struct ppp_comp_stats cstats;
49456- char *vers;
49457
49458 switch (cmd) {
49459 case SIOCGPPPSTATS:
49460@@ -1044,8 +1043,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
49461 break;
49462
49463 case SIOCGPPPVER:
49464- vers = PPP_VERSION;
49465- if (copy_to_user(addr, vers, strlen(vers) + 1))
49466+ if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
49467 break;
49468 err = 0;
49469 break;
49470diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
49471index 079f7ad..b2a2bfa7 100644
49472--- a/drivers/net/slip/slhc.c
49473+++ b/drivers/net/slip/slhc.c
49474@@ -487,7 +487,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
49475 register struct tcphdr *thp;
49476 register struct iphdr *ip;
49477 register struct cstate *cs;
49478- int len, hdrlen;
49479+ long len, hdrlen;
49480 unsigned char *cp = icp;
49481
49482 /* We've got a compressed packet; read the change byte */
49483diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
49484index 7d39484..d58499d 100644
49485--- a/drivers/net/team/team.c
49486+++ b/drivers/net/team/team.c
49487@@ -2099,7 +2099,7 @@ static unsigned int team_get_num_rx_queues(void)
49488 return TEAM_DEFAULT_NUM_RX_QUEUES;
49489 }
49490
49491-static struct rtnl_link_ops team_link_ops __read_mostly = {
49492+static struct rtnl_link_ops team_link_ops = {
49493 .kind = DRV_NAME,
49494 .priv_size = sizeof(struct team),
49495 .setup = team_setup,
49496@@ -2889,7 +2889,7 @@ static int team_device_event(struct notifier_block *unused,
49497 return NOTIFY_DONE;
49498 }
49499
49500-static struct notifier_block team_notifier_block __read_mostly = {
49501+static struct notifier_block team_notifier_block = {
49502 .notifier_call = team_device_event,
49503 };
49504
49505diff --git a/drivers/net/tun.c b/drivers/net/tun.c
49506index 857dca4..642f532 100644
49507--- a/drivers/net/tun.c
49508+++ b/drivers/net/tun.c
49509@@ -1421,7 +1421,7 @@ static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
49510 return -EINVAL;
49511 }
49512
49513-static struct rtnl_link_ops tun_link_ops __read_mostly = {
49514+static struct rtnl_link_ops tun_link_ops = {
49515 .kind = DRV_NAME,
49516 .priv_size = sizeof(struct tun_struct),
49517 .setup = tun_setup,
49518@@ -1830,7 +1830,7 @@ unlock:
49519 }
49520
49521 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
49522- unsigned long arg, int ifreq_len)
49523+ unsigned long arg, size_t ifreq_len)
49524 {
49525 struct tun_file *tfile = file->private_data;
49526 struct tun_struct *tun;
49527@@ -1844,6 +1844,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
49528 int le;
49529 int ret;
49530
49531+ if (ifreq_len > sizeof ifr)
49532+ return -EFAULT;
49533+
49534 if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
49535 if (copy_from_user(&ifr, argp, ifreq_len))
49536 return -EFAULT;
49537diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
49538index 778e915..58c4d95 100644
49539--- a/drivers/net/usb/hso.c
49540+++ b/drivers/net/usb/hso.c
49541@@ -70,7 +70,7 @@
49542 #include <asm/byteorder.h>
49543 #include <linux/serial_core.h>
49544 #include <linux/serial.h>
49545-
49546+#include <asm/local.h>
49547
49548 #define MOD_AUTHOR "Option Wireless"
49549 #define MOD_DESCRIPTION "USB High Speed Option driver"
49550@@ -1183,7 +1183,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
49551 struct urb *urb;
49552
49553 urb = serial->rx_urb[0];
49554- if (serial->port.count > 0) {
49555+ if (atomic_read(&serial->port.count) > 0) {
49556 count = put_rxbuf_data(urb, serial);
49557 if (count == -1)
49558 return;
49559@@ -1221,7 +1221,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
49560 DUMP1(urb->transfer_buffer, urb->actual_length);
49561
49562 /* Anyone listening? */
49563- if (serial->port.count == 0)
49564+ if (atomic_read(&serial->port.count) == 0)
49565 return;
49566
49567 if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
49568@@ -1282,8 +1282,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
49569 tty_port_tty_set(&serial->port, tty);
49570
49571 /* check for port already opened, if not set the termios */
49572- serial->port.count++;
49573- if (serial->port.count == 1) {
49574+ if (atomic_inc_return(&serial->port.count) == 1) {
49575 serial->rx_state = RX_IDLE;
49576 /* Force default termio settings */
49577 _hso_serial_set_termios(tty, NULL);
49578@@ -1293,7 +1292,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
49579 result = hso_start_serial_device(serial->parent, GFP_KERNEL);
49580 if (result) {
49581 hso_stop_serial_device(serial->parent);
49582- serial->port.count--;
49583+ atomic_dec(&serial->port.count);
49584 } else {
49585 kref_get(&serial->parent->ref);
49586 }
49587@@ -1331,10 +1330,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
49588
49589 /* reset the rts and dtr */
49590 /* do the actual close */
49591- serial->port.count--;
49592+ atomic_dec(&serial->port.count);
49593
49594- if (serial->port.count <= 0) {
49595- serial->port.count = 0;
49596+ if (atomic_read(&serial->port.count) <= 0) {
49597+ atomic_set(&serial->port.count, 0);
49598 tty_port_tty_set(&serial->port, NULL);
49599 if (!usb_gone)
49600 hso_stop_serial_device(serial->parent);
49601@@ -1417,7 +1416,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
49602
49603 /* the actual setup */
49604 spin_lock_irqsave(&serial->serial_lock, flags);
49605- if (serial->port.count)
49606+ if (atomic_read(&serial->port.count))
49607 _hso_serial_set_termios(tty, old);
49608 else
49609 tty->termios = *old;
49610@@ -1886,7 +1885,7 @@ static void intr_callback(struct urb *urb)
49611 D1("Pending read interrupt on port %d\n", i);
49612 spin_lock(&serial->serial_lock);
49613 if (serial->rx_state == RX_IDLE &&
49614- serial->port.count > 0) {
49615+ atomic_read(&serial->port.count) > 0) {
49616 /* Setup and send a ctrl req read on
49617 * port i */
49618 if (!serial->rx_urb_filled[0]) {
49619@@ -3053,7 +3052,7 @@ static int hso_resume(struct usb_interface *iface)
49620 /* Start all serial ports */
49621 for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
49622 if (serial_table[i] && (serial_table[i]->interface == iface)) {
49623- if (dev2ser(serial_table[i])->port.count) {
49624+ if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
49625 result =
49626 hso_start_serial_device(serial_table[i], GFP_NOIO);
49627 hso_kick_transmit(dev2ser(serial_table[i]));
49628diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
49629index 9f7c0ab..1577b4a 100644
49630--- a/drivers/net/usb/r8152.c
49631+++ b/drivers/net/usb/r8152.c
49632@@ -601,7 +601,7 @@ struct r8152 {
49633 void (*unload)(struct r8152 *);
49634 int (*eee_get)(struct r8152 *, struct ethtool_eee *);
49635 int (*eee_set)(struct r8152 *, struct ethtool_eee *);
49636- } rtl_ops;
49637+ } __no_const rtl_ops;
49638
49639 int intr_interval;
49640 u32 saved_wolopts;
49641diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
49642index a2515887..6d13233 100644
49643--- a/drivers/net/usb/sierra_net.c
49644+++ b/drivers/net/usb/sierra_net.c
49645@@ -51,7 +51,7 @@ static const char driver_name[] = "sierra_net";
49646 /* atomic counter partially included in MAC address to make sure 2 devices
49647 * do not end up with the same MAC - concept breaks in case of > 255 ifaces
49648 */
49649-static atomic_t iface_counter = ATOMIC_INIT(0);
49650+static atomic_unchecked_t iface_counter = ATOMIC_INIT(0);
49651
49652 /*
49653 * SYNC Timer Delay definition used to set the expiry time
49654@@ -697,7 +697,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
49655 dev->net->netdev_ops = &sierra_net_device_ops;
49656
49657 /* change MAC addr to include, ifacenum, and to be unique */
49658- dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
49659+ dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return_unchecked(&iface_counter);
49660 dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
49661
49662 /* we will have to manufacture ethernet headers, prepare template */
49663diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
49664index 777757a..395a767 100644
49665--- a/drivers/net/usb/usbnet.c
49666+++ b/drivers/net/usb/usbnet.c
49667@@ -1285,7 +1285,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
49668 struct net_device *net)
49669 {
49670 struct usbnet *dev = netdev_priv(net);
49671- int length;
49672+ unsigned int length;
49673 struct urb *urb = NULL;
49674 struct skb_data *entry;
49675 struct driver_info *info = dev->driver_info;
49676@@ -1413,7 +1413,7 @@ not_drop:
49677 }
49678 } else
49679 netif_dbg(dev, tx_queued, dev->net,
49680- "> tx, len %d, type 0x%x\n", length, skb->protocol);
49681+ "> tx, len %u, type 0x%x\n", length, skb->protocol);
49682 #ifdef CONFIG_PM
49683 deferred:
49684 #endif
49685diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
49686index 59b0e97..a6ed579 100644
49687--- a/drivers/net/virtio_net.c
49688+++ b/drivers/net/virtio_net.c
49689@@ -48,7 +48,7 @@ module_param(gso, bool, 0444);
49690 #define RECEIVE_AVG_WEIGHT 64
49691
49692 /* Minimum alignment for mergeable packet buffers. */
49693-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
49694+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256UL)
49695
49696 #define VIRTNET_DRIVER_VERSION "1.0.0"
49697
49698diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
49699index fceb637..37c70fd 100644
49700--- a/drivers/net/vxlan.c
49701+++ b/drivers/net/vxlan.c
49702@@ -2935,7 +2935,7 @@ static struct net *vxlan_get_link_net(const struct net_device *dev)
49703 return vxlan->net;
49704 }
49705
49706-static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
49707+static struct rtnl_link_ops vxlan_link_ops = {
49708 .kind = "vxlan",
49709 .maxtype = IFLA_VXLAN_MAX,
49710 .policy = vxlan_policy,
49711@@ -2983,7 +2983,7 @@ static int vxlan_lowerdev_event(struct notifier_block *unused,
49712 return NOTIFY_DONE;
49713 }
49714
49715-static struct notifier_block vxlan_notifier_block __read_mostly = {
49716+static struct notifier_block vxlan_notifier_block = {
49717 .notifier_call = vxlan_lowerdev_event,
49718 };
49719
49720diff --git a/drivers/net/wan/lmc/lmc_media.c b/drivers/net/wan/lmc/lmc_media.c
49721index 5920c99..ff2e4a5 100644
49722--- a/drivers/net/wan/lmc/lmc_media.c
49723+++ b/drivers/net/wan/lmc/lmc_media.c
49724@@ -95,62 +95,63 @@ static inline void write_av9110_bit (lmc_softc_t *, int);
49725 static void write_av9110(lmc_softc_t *, u32, u32, u32, u32, u32);
49726
49727 lmc_media_t lmc_ds3_media = {
49728- lmc_ds3_init, /* special media init stuff */
49729- lmc_ds3_default, /* reset to default state */
49730- lmc_ds3_set_status, /* reset status to state provided */
49731- lmc_dummy_set_1, /* set clock source */
49732- lmc_dummy_set2_1, /* set line speed */
49733- lmc_ds3_set_100ft, /* set cable length */
49734- lmc_ds3_set_scram, /* set scrambler */
49735- lmc_ds3_get_link_status, /* get link status */
49736- lmc_dummy_set_1, /* set link status */
49737- lmc_ds3_set_crc_length, /* set CRC length */
49738- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49739- lmc_ds3_watchdog
49740+ .init = lmc_ds3_init, /* special media init stuff */
49741+ .defaults = lmc_ds3_default, /* reset to default state */
49742+ .set_status = lmc_ds3_set_status, /* reset status to state provided */
49743+ .set_clock_source = lmc_dummy_set_1, /* set clock source */
49744+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49745+ .set_cable_length = lmc_ds3_set_100ft, /* set cable length */
49746+ .set_scrambler = lmc_ds3_set_scram, /* set scrambler */
49747+ .get_link_status = lmc_ds3_get_link_status, /* get link status */
49748+ .set_link_status = lmc_dummy_set_1, /* set link status */
49749+ .set_crc_length = lmc_ds3_set_crc_length, /* set CRC length */
49750+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49751+ .watchdog = lmc_ds3_watchdog
49752 };
49753
49754 lmc_media_t lmc_hssi_media = {
49755- lmc_hssi_init, /* special media init stuff */
49756- lmc_hssi_default, /* reset to default state */
49757- lmc_hssi_set_status, /* reset status to state provided */
49758- lmc_hssi_set_clock, /* set clock source */
49759- lmc_dummy_set2_1, /* set line speed */
49760- lmc_dummy_set_1, /* set cable length */
49761- lmc_dummy_set_1, /* set scrambler */
49762- lmc_hssi_get_link_status, /* get link status */
49763- lmc_hssi_set_link_status, /* set link status */
49764- lmc_hssi_set_crc_length, /* set CRC length */
49765- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49766- lmc_hssi_watchdog
49767+ .init = lmc_hssi_init, /* special media init stuff */
49768+ .defaults = lmc_hssi_default, /* reset to default state */
49769+ .set_status = lmc_hssi_set_status, /* reset status to state provided */
49770+ .set_clock_source = lmc_hssi_set_clock, /* set clock source */
49771+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49772+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49773+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49774+ .get_link_status = lmc_hssi_get_link_status, /* get link status */
49775+ .set_link_status = lmc_hssi_set_link_status, /* set link status */
49776+ .set_crc_length = lmc_hssi_set_crc_length, /* set CRC length */
49777+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49778+ .watchdog = lmc_hssi_watchdog
49779 };
49780
49781-lmc_media_t lmc_ssi_media = { lmc_ssi_init, /* special media init stuff */
49782- lmc_ssi_default, /* reset to default state */
49783- lmc_ssi_set_status, /* reset status to state provided */
49784- lmc_ssi_set_clock, /* set clock source */
49785- lmc_ssi_set_speed, /* set line speed */
49786- lmc_dummy_set_1, /* set cable length */
49787- lmc_dummy_set_1, /* set scrambler */
49788- lmc_ssi_get_link_status, /* get link status */
49789- lmc_ssi_set_link_status, /* set link status */
49790- lmc_ssi_set_crc_length, /* set CRC length */
49791- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49792- lmc_ssi_watchdog
49793+lmc_media_t lmc_ssi_media = {
49794+ .init = lmc_ssi_init, /* special media init stuff */
49795+ .defaults = lmc_ssi_default, /* reset to default state */
49796+ .set_status = lmc_ssi_set_status, /* reset status to state provided */
49797+ .set_clock_source = lmc_ssi_set_clock, /* set clock source */
49798+ .set_speed = lmc_ssi_set_speed, /* set line speed */
49799+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49800+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49801+ .get_link_status = lmc_ssi_get_link_status, /* get link status */
49802+ .set_link_status = lmc_ssi_set_link_status, /* set link status */
49803+ .set_crc_length = lmc_ssi_set_crc_length, /* set CRC length */
49804+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49805+ .watchdog = lmc_ssi_watchdog
49806 };
49807
49808 lmc_media_t lmc_t1_media = {
49809- lmc_t1_init, /* special media init stuff */
49810- lmc_t1_default, /* reset to default state */
49811- lmc_t1_set_status, /* reset status to state provided */
49812- lmc_t1_set_clock, /* set clock source */
49813- lmc_dummy_set2_1, /* set line speed */
49814- lmc_dummy_set_1, /* set cable length */
49815- lmc_dummy_set_1, /* set scrambler */
49816- lmc_t1_get_link_status, /* get link status */
49817- lmc_dummy_set_1, /* set link status */
49818- lmc_t1_set_crc_length, /* set CRC length */
49819- lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
49820- lmc_t1_watchdog
49821+ .init = lmc_t1_init, /* special media init stuff */
49822+ .defaults = lmc_t1_default, /* reset to default state */
49823+ .set_status = lmc_t1_set_status, /* reset status to state provided */
49824+ .set_clock_source = lmc_t1_set_clock, /* set clock source */
49825+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49826+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49827+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49828+ .get_link_status = lmc_t1_get_link_status, /* get link status */
49829+ .set_link_status = lmc_dummy_set_1, /* set link status */
49830+ .set_crc_length = lmc_t1_set_crc_length, /* set CRC length */
49831+ .set_circuit_type = lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
49832+ .watchdog = lmc_t1_watchdog
49833 };
49834
49835 static void
49836diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
49837index feacc3b..5bac0de 100644
49838--- a/drivers/net/wan/z85230.c
49839+++ b/drivers/net/wan/z85230.c
49840@@ -485,9 +485,9 @@ static void z8530_status(struct z8530_channel *chan)
49841
49842 struct z8530_irqhandler z8530_sync =
49843 {
49844- z8530_rx,
49845- z8530_tx,
49846- z8530_status
49847+ .rx = z8530_rx,
49848+ .tx = z8530_tx,
49849+ .status = z8530_status
49850 };
49851
49852 EXPORT_SYMBOL(z8530_sync);
49853@@ -605,15 +605,15 @@ static void z8530_dma_status(struct z8530_channel *chan)
49854 }
49855
49856 static struct z8530_irqhandler z8530_dma_sync = {
49857- z8530_dma_rx,
49858- z8530_dma_tx,
49859- z8530_dma_status
49860+ .rx = z8530_dma_rx,
49861+ .tx = z8530_dma_tx,
49862+ .status = z8530_dma_status
49863 };
49864
49865 static struct z8530_irqhandler z8530_txdma_sync = {
49866- z8530_rx,
49867- z8530_dma_tx,
49868- z8530_dma_status
49869+ .rx = z8530_rx,
49870+ .tx = z8530_dma_tx,
49871+ .status = z8530_dma_status
49872 };
49873
49874 /**
49875@@ -680,9 +680,9 @@ static void z8530_status_clear(struct z8530_channel *chan)
49876
49877 struct z8530_irqhandler z8530_nop=
49878 {
49879- z8530_rx_clear,
49880- z8530_tx_clear,
49881- z8530_status_clear
49882+ .rx = z8530_rx_clear,
49883+ .tx = z8530_tx_clear,
49884+ .status = z8530_status_clear
49885 };
49886
49887
49888diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
49889index 0b60295..b8bfa5b 100644
49890--- a/drivers/net/wimax/i2400m/rx.c
49891+++ b/drivers/net/wimax/i2400m/rx.c
49892@@ -1359,7 +1359,7 @@ int i2400m_rx_setup(struct i2400m *i2400m)
49893 if (i2400m->rx_roq == NULL)
49894 goto error_roq_alloc;
49895
49896- rd = kcalloc(I2400M_RO_CIN + 1, sizeof(*i2400m->rx_roq[0].log),
49897+ rd = kcalloc(sizeof(*i2400m->rx_roq[0].log), I2400M_RO_CIN + 1,
49898 GFP_KERNEL);
49899 if (rd == NULL) {
49900 result = -ENOMEM;
49901diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
49902index e71a2ce..2268d61 100644
49903--- a/drivers/net/wireless/airo.c
49904+++ b/drivers/net/wireless/airo.c
49905@@ -7846,7 +7846,7 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
49906 struct airo_info *ai = dev->ml_priv;
49907 int ridcode;
49908 int enabled;
49909- static int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
49910+ int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
49911 unsigned char *iobuf;
49912
49913 /* Only super-user can write RIDs */
49914diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
49915index da92bfa..5a9001a 100644
49916--- a/drivers/net/wireless/at76c50x-usb.c
49917+++ b/drivers/net/wireless/at76c50x-usb.c
49918@@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
49919 }
49920
49921 /* Convert timeout from the DFU status to jiffies */
49922-static inline unsigned long at76_get_timeout(struct dfu_status *s)
49923+static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
49924 {
49925 return msecs_to_jiffies((s->poll_timeout[2] << 16)
49926 | (s->poll_timeout[1] << 8)
49927diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
49928index 2fd9e18..3f55bdd 100644
49929--- a/drivers/net/wireless/ath/ath10k/htc.c
49930+++ b/drivers/net/wireless/ath/ath10k/htc.c
49931@@ -849,7 +849,10 @@ int ath10k_htc_start(struct ath10k_htc *htc)
49932 /* registered target arrival callback from the HIF layer */
49933 int ath10k_htc_init(struct ath10k *ar)
49934 {
49935- struct ath10k_hif_cb htc_callbacks;
49936+ static struct ath10k_hif_cb htc_callbacks = {
49937+ .rx_completion = ath10k_htc_rx_completion_handler,
49938+ .tx_completion = ath10k_htc_tx_completion_handler,
49939+ };
49940 struct ath10k_htc_ep *ep = NULL;
49941 struct ath10k_htc *htc = &ar->htc;
49942
49943@@ -858,8 +861,6 @@ int ath10k_htc_init(struct ath10k *ar)
49944 ath10k_htc_reset_endpoint_states(htc);
49945
49946 /* setup HIF layer callbacks */
49947- htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
49948- htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
49949 htc->ar = ar;
49950
49951 /* Get HIF default pipe for HTC message exchange */
49952diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
49953index 527179c..a890150 100644
49954--- a/drivers/net/wireless/ath/ath10k/htc.h
49955+++ b/drivers/net/wireless/ath/ath10k/htc.h
49956@@ -270,13 +270,13 @@ enum ath10k_htc_ep_id {
49957
49958 struct ath10k_htc_ops {
49959 void (*target_send_suspend_complete)(struct ath10k *ar);
49960-};
49961+} __no_const;
49962
49963 struct ath10k_htc_ep_ops {
49964 void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
49965 void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
49966 void (*ep_tx_credits)(struct ath10k *);
49967-};
49968+} __no_const;
49969
49970 /* service connection information */
49971 struct ath10k_htc_svc_conn_req {
49972diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49973index f816909..e56cd8b 100644
49974--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49975+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49976@@ -220,8 +220,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
49977 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
49978 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
49979
49980- ACCESS_ONCE(ads->ds_link) = i->link;
49981- ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
49982+ ACCESS_ONCE_RW(ads->ds_link) = i->link;
49983+ ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
49984
49985 ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
49986 ctl6 = SM(i->keytype, AR_EncrType);
49987@@ -235,26 +235,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
49988
49989 if ((i->is_first || i->is_last) &&
49990 i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
49991- ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
49992+ ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
49993 | set11nTries(i->rates, 1)
49994 | set11nTries(i->rates, 2)
49995 | set11nTries(i->rates, 3)
49996 | (i->dur_update ? AR_DurUpdateEna : 0)
49997 | SM(0, AR_BurstDur);
49998
49999- ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
50000+ ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
50001 | set11nRate(i->rates, 1)
50002 | set11nRate(i->rates, 2)
50003 | set11nRate(i->rates, 3);
50004 } else {
50005- ACCESS_ONCE(ads->ds_ctl2) = 0;
50006- ACCESS_ONCE(ads->ds_ctl3) = 0;
50007+ ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
50008+ ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
50009 }
50010
50011 if (!i->is_first) {
50012- ACCESS_ONCE(ads->ds_ctl0) = 0;
50013- ACCESS_ONCE(ads->ds_ctl1) = ctl1;
50014- ACCESS_ONCE(ads->ds_ctl6) = ctl6;
50015+ ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
50016+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
50017+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
50018 return;
50019 }
50020
50021@@ -279,7 +279,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50022 break;
50023 }
50024
50025- ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
50026+ ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
50027 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
50028 | SM(i->txpower[0], AR_XmitPower0)
50029 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
50030@@ -289,27 +289,27 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50031 | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
50032 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
50033
50034- ACCESS_ONCE(ads->ds_ctl1) = ctl1;
50035- ACCESS_ONCE(ads->ds_ctl6) = ctl6;
50036+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
50037+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
50038
50039 if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
50040 return;
50041
50042- ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
50043+ ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
50044 | set11nPktDurRTSCTS(i->rates, 1);
50045
50046- ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
50047+ ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
50048 | set11nPktDurRTSCTS(i->rates, 3);
50049
50050- ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
50051+ ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
50052 | set11nRateFlags(i->rates, 1)
50053 | set11nRateFlags(i->rates, 2)
50054 | set11nRateFlags(i->rates, 3)
50055 | SM(i->rtscts_rate, AR_RTSCTSRate);
50056
50057- ACCESS_ONCE(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
50058- ACCESS_ONCE(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
50059- ACCESS_ONCE(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
50060+ ACCESS_ONCE_RW(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
50061+ ACCESS_ONCE_RW(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
50062+ ACCESS_ONCE_RW(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
50063 }
50064
50065 static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
50066diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50067index da84b70..83e4978 100644
50068--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50069+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50070@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50071 (i->qcu << AR_TxQcuNum_S) | desc_len;
50072
50073 checksum += val;
50074- ACCESS_ONCE(ads->info) = val;
50075+ ACCESS_ONCE_RW(ads->info) = val;
50076
50077 checksum += i->link;
50078- ACCESS_ONCE(ads->link) = i->link;
50079+ ACCESS_ONCE_RW(ads->link) = i->link;
50080
50081 checksum += i->buf_addr[0];
50082- ACCESS_ONCE(ads->data0) = i->buf_addr[0];
50083+ ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
50084 checksum += i->buf_addr[1];
50085- ACCESS_ONCE(ads->data1) = i->buf_addr[1];
50086+ ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
50087 checksum += i->buf_addr[2];
50088- ACCESS_ONCE(ads->data2) = i->buf_addr[2];
50089+ ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
50090 checksum += i->buf_addr[3];
50091- ACCESS_ONCE(ads->data3) = i->buf_addr[3];
50092+ ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
50093
50094 checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
50095- ACCESS_ONCE(ads->ctl3) = val;
50096+ ACCESS_ONCE_RW(ads->ctl3) = val;
50097 checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
50098- ACCESS_ONCE(ads->ctl5) = val;
50099+ ACCESS_ONCE_RW(ads->ctl5) = val;
50100 checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
50101- ACCESS_ONCE(ads->ctl7) = val;
50102+ ACCESS_ONCE_RW(ads->ctl7) = val;
50103 checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
50104- ACCESS_ONCE(ads->ctl9) = val;
50105+ ACCESS_ONCE_RW(ads->ctl9) = val;
50106
50107 checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
50108- ACCESS_ONCE(ads->ctl10) = checksum;
50109+ ACCESS_ONCE_RW(ads->ctl10) = checksum;
50110
50111 if (i->is_first || i->is_last) {
50112- ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
50113+ ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
50114 | set11nTries(i->rates, 1)
50115 | set11nTries(i->rates, 2)
50116 | set11nTries(i->rates, 3)
50117 | (i->dur_update ? AR_DurUpdateEna : 0)
50118 | SM(0, AR_BurstDur);
50119
50120- ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
50121+ ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
50122 | set11nRate(i->rates, 1)
50123 | set11nRate(i->rates, 2)
50124 | set11nRate(i->rates, 3);
50125 } else {
50126- ACCESS_ONCE(ads->ctl13) = 0;
50127- ACCESS_ONCE(ads->ctl14) = 0;
50128+ ACCESS_ONCE_RW(ads->ctl13) = 0;
50129+ ACCESS_ONCE_RW(ads->ctl14) = 0;
50130 }
50131
50132 ads->ctl20 = 0;
50133@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50134
50135 ctl17 = SM(i->keytype, AR_EncrType);
50136 if (!i->is_first) {
50137- ACCESS_ONCE(ads->ctl11) = 0;
50138- ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
50139- ACCESS_ONCE(ads->ctl15) = 0;
50140- ACCESS_ONCE(ads->ctl16) = 0;
50141- ACCESS_ONCE(ads->ctl17) = ctl17;
50142- ACCESS_ONCE(ads->ctl18) = 0;
50143- ACCESS_ONCE(ads->ctl19) = 0;
50144+ ACCESS_ONCE_RW(ads->ctl11) = 0;
50145+ ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
50146+ ACCESS_ONCE_RW(ads->ctl15) = 0;
50147+ ACCESS_ONCE_RW(ads->ctl16) = 0;
50148+ ACCESS_ONCE_RW(ads->ctl17) = ctl17;
50149+ ACCESS_ONCE_RW(ads->ctl18) = 0;
50150+ ACCESS_ONCE_RW(ads->ctl19) = 0;
50151 return;
50152 }
50153
50154- ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
50155+ ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
50156 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
50157 | SM(i->txpower[0], AR_XmitPower0)
50158 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
50159@@ -135,26 +135,26 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50160 val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
50161 ctl12 |= SM(val, AR_PAPRDChainMask);
50162
50163- ACCESS_ONCE(ads->ctl12) = ctl12;
50164- ACCESS_ONCE(ads->ctl17) = ctl17;
50165+ ACCESS_ONCE_RW(ads->ctl12) = ctl12;
50166+ ACCESS_ONCE_RW(ads->ctl17) = ctl17;
50167
50168- ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
50169+ ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
50170 | set11nPktDurRTSCTS(i->rates, 1);
50171
50172- ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
50173+ ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
50174 | set11nPktDurRTSCTS(i->rates, 3);
50175
50176- ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
50177+ ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
50178 | set11nRateFlags(i->rates, 1)
50179 | set11nRateFlags(i->rates, 2)
50180 | set11nRateFlags(i->rates, 3)
50181 | SM(i->rtscts_rate, AR_RTSCTSRate);
50182
50183- ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
50184+ ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
50185
50186- ACCESS_ONCE(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
50187- ACCESS_ONCE(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
50188- ACCESS_ONCE(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
50189+ ACCESS_ONCE_RW(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
50190+ ACCESS_ONCE_RW(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
50191+ ACCESS_ONCE_RW(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
50192 }
50193
50194 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
50195diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
50196index e82e570..8c3cf90 100644
50197--- a/drivers/net/wireless/ath/ath9k/hw.h
50198+++ b/drivers/net/wireless/ath/ath9k/hw.h
50199@@ -646,7 +646,7 @@ struct ath_hw_private_ops {
50200
50201 /* ANI */
50202 void (*ani_cache_ini_regs)(struct ath_hw *ah);
50203-};
50204+} __no_const;
50205
50206 /**
50207 * struct ath_spec_scan - parameters for Atheros spectral scan
50208@@ -722,7 +722,7 @@ struct ath_hw_ops {
50209 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
50210 void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
50211 #endif
50212-};
50213+} __no_const;
50214
50215 struct ath_nf_limits {
50216 s16 max;
50217diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
50218index 9ede991..a8f08fb 100644
50219--- a/drivers/net/wireless/ath/ath9k/main.c
50220+++ b/drivers/net/wireless/ath/ath9k/main.c
50221@@ -2537,16 +2537,18 @@ void ath9k_fill_chanctx_ops(void)
50222 if (!ath9k_is_chanctx_enabled())
50223 return;
50224
50225- ath9k_ops.hw_scan = ath9k_hw_scan;
50226- ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
50227- ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
50228- ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
50229- ath9k_ops.add_chanctx = ath9k_add_chanctx;
50230- ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
50231- ath9k_ops.change_chanctx = ath9k_change_chanctx;
50232- ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
50233- ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
50234- ath9k_ops.mgd_prepare_tx = ath9k_mgd_prepare_tx;
50235+ pax_open_kernel();
50236+ *(void **)&ath9k_ops.hw_scan = ath9k_hw_scan;
50237+ *(void **)&ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
50238+ *(void **)&ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
50239+ *(void **)&ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
50240+ *(void **)&ath9k_ops.add_chanctx = ath9k_add_chanctx;
50241+ *(void **)&ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
50242+ *(void **)&ath9k_ops.change_chanctx = ath9k_change_chanctx;
50243+ *(void **)&ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
50244+ *(void **)&ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
50245+ *(void **)&ath9k_ops.mgd_prepare_tx = ath9k_mgd_prepare_tx;
50246+ pax_close_kernel();
50247 }
50248
50249 #endif
50250diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
50251index 058a9f2..d5cb1ba 100644
50252--- a/drivers/net/wireless/b43/phy_lp.c
50253+++ b/drivers/net/wireless/b43/phy_lp.c
50254@@ -2502,7 +2502,7 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
50255 {
50256 struct ssb_bus *bus = dev->dev->sdev->bus;
50257
50258- static const struct b206x_channel *chandata = NULL;
50259+ const struct b206x_channel *chandata = NULL;
50260 u32 crystal_freq = bus->chipco.pmu.crystalfreq * 1000;
50261 u32 freqref, vco_freq, val1, val2, val3, timeout, timeoutref, count;
50262 u16 old_comm15, scale;
50263diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
50264index e566580..2c218ca 100644
50265--- a/drivers/net/wireless/iwlegacy/3945-mac.c
50266+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
50267@@ -3631,7 +3631,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
50268 */
50269 if (il3945_mod_params.disable_hw_scan) {
50270 D_INFO("Disabling hw_scan\n");
50271- il3945_mac_ops.hw_scan = NULL;
50272+ pax_open_kernel();
50273+ *(void **)&il3945_mac_ops.hw_scan = NULL;
50274+ pax_close_kernel();
50275 }
50276
50277 D_INFO("*** LOAD DRIVER ***\n");
50278diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50279index 0ffb6ff..c0b7f0e 100644
50280--- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50281+++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50282@@ -188,7 +188,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
50283 {
50284 struct iwl_priv *priv = file->private_data;
50285 char buf[64];
50286- int buf_size;
50287+ size_t buf_size;
50288 u32 offset, len;
50289
50290 memset(buf, 0, sizeof(buf));
50291@@ -458,7 +458,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
50292 struct iwl_priv *priv = file->private_data;
50293
50294 char buf[8];
50295- int buf_size;
50296+ size_t buf_size;
50297 u32 reset_flag;
50298
50299 memset(buf, 0, sizeof(buf));
50300@@ -539,7 +539,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
50301 {
50302 struct iwl_priv *priv = file->private_data;
50303 char buf[8];
50304- int buf_size;
50305+ size_t buf_size;
50306 int ht40;
50307
50308 memset(buf, 0, sizeof(buf));
50309@@ -591,7 +591,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
50310 {
50311 struct iwl_priv *priv = file->private_data;
50312 char buf[8];
50313- int buf_size;
50314+ size_t buf_size;
50315 int value;
50316
50317 memset(buf, 0, sizeof(buf));
50318@@ -683,10 +683,10 @@ DEBUGFS_READ_FILE_OPS(temperature);
50319 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
50320 DEBUGFS_READ_FILE_OPS(current_sleep_command);
50321
50322-static const char *fmt_value = " %-30s %10u\n";
50323-static const char *fmt_hex = " %-30s 0x%02X\n";
50324-static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
50325-static const char *fmt_header =
50326+static const char fmt_value[] = " %-30s %10u\n";
50327+static const char fmt_hex[] = " %-30s 0x%02X\n";
50328+static const char fmt_table[] = " %-30s %10u %10u %10u %10u\n";
50329+static const char fmt_header[] =
50330 "%-32s current cumulative delta max\n";
50331
50332 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
50333@@ -1856,7 +1856,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
50334 {
50335 struct iwl_priv *priv = file->private_data;
50336 char buf[8];
50337- int buf_size;
50338+ size_t buf_size;
50339 int clear;
50340
50341 memset(buf, 0, sizeof(buf));
50342@@ -1901,7 +1901,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
50343 {
50344 struct iwl_priv *priv = file->private_data;
50345 char buf[8];
50346- int buf_size;
50347+ size_t buf_size;
50348 int trace;
50349
50350 memset(buf, 0, sizeof(buf));
50351@@ -1972,7 +1972,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
50352 {
50353 struct iwl_priv *priv = file->private_data;
50354 char buf[8];
50355- int buf_size;
50356+ size_t buf_size;
50357 int missed;
50358
50359 memset(buf, 0, sizeof(buf));
50360@@ -2013,7 +2013,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
50361
50362 struct iwl_priv *priv = file->private_data;
50363 char buf[8];
50364- int buf_size;
50365+ size_t buf_size;
50366 int plcp;
50367
50368 memset(buf, 0, sizeof(buf));
50369@@ -2073,7 +2073,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
50370
50371 struct iwl_priv *priv = file->private_data;
50372 char buf[8];
50373- int buf_size;
50374+ size_t buf_size;
50375 int flush;
50376
50377 memset(buf, 0, sizeof(buf));
50378@@ -2163,7 +2163,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
50379
50380 struct iwl_priv *priv = file->private_data;
50381 char buf[8];
50382- int buf_size;
50383+ size_t buf_size;
50384 int rts;
50385
50386 if (!priv->cfg->ht_params)
50387@@ -2204,7 +2204,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
50388 {
50389 struct iwl_priv *priv = file->private_data;
50390 char buf[8];
50391- int buf_size;
50392+ size_t buf_size;
50393
50394 memset(buf, 0, sizeof(buf));
50395 buf_size = min(count, sizeof(buf) - 1);
50396@@ -2238,7 +2238,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
50397 struct iwl_priv *priv = file->private_data;
50398 u32 event_log_flag;
50399 char buf[8];
50400- int buf_size;
50401+ size_t buf_size;
50402
50403 /* check that the interface is up */
50404 if (!iwl_is_ready(priv))
50405@@ -2292,7 +2292,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
50406 struct iwl_priv *priv = file->private_data;
50407 char buf[8];
50408 u32 calib_disabled;
50409- int buf_size;
50410+ size_t buf_size;
50411
50412 memset(buf, 0, sizeof(buf));
50413 buf_size = min(count, sizeof(buf) - 1);
50414diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
50415index 69935aa..c1ca128 100644
50416--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
50417+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
50418@@ -1836,7 +1836,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
50419 struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
50420
50421 char buf[8];
50422- int buf_size;
50423+ size_t buf_size;
50424 u32 reset_flag;
50425
50426 memset(buf, 0, sizeof(buf));
50427@@ -1857,7 +1857,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
50428 {
50429 struct iwl_trans *trans = file->private_data;
50430 char buf[8];
50431- int buf_size;
50432+ size_t buf_size;
50433 int csr;
50434
50435 memset(buf, 0, sizeof(buf));
50436diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
50437index 8908be6..fe97ddd 100644
50438--- a/drivers/net/wireless/mac80211_hwsim.c
50439+++ b/drivers/net/wireless/mac80211_hwsim.c
50440@@ -3070,20 +3070,20 @@ static int __init init_mac80211_hwsim(void)
50441 if (channels < 1)
50442 return -EINVAL;
50443
50444- mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
50445- mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
50446- mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
50447- mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
50448- mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
50449- mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
50450- mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
50451- mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
50452- mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
50453- mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
50454- mac80211_hwsim_mchan_ops.assign_vif_chanctx =
50455- mac80211_hwsim_assign_vif_chanctx;
50456- mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
50457- mac80211_hwsim_unassign_vif_chanctx;
50458+ pax_open_kernel();
50459+ memcpy((void *)&mac80211_hwsim_mchan_ops, &mac80211_hwsim_ops, sizeof mac80211_hwsim_mchan_ops);
50460+ *(void **)&mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
50461+ *(void **)&mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
50462+ *(void **)&mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
50463+ *(void **)&mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
50464+ *(void **)&mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
50465+ *(void **)&mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
50466+ *(void **)&mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
50467+ *(void **)&mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
50468+ *(void **)&mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
50469+ *(void **)&mac80211_hwsim_mchan_ops.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx;
50470+ *(void **)&mac80211_hwsim_mchan_ops.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx;
50471+ pax_close_kernel();
50472
50473 spin_lock_init(&hwsim_radio_lock);
50474 INIT_LIST_HEAD(&hwsim_radios);
50475diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
50476index 60d44ce..884dd1c 100644
50477--- a/drivers/net/wireless/rndis_wlan.c
50478+++ b/drivers/net/wireless/rndis_wlan.c
50479@@ -1236,7 +1236,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
50480
50481 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
50482
50483- if (rts_threshold < 0 || rts_threshold > 2347)
50484+ if (rts_threshold > 2347)
50485 rts_threshold = 2347;
50486
50487 tmp = cpu_to_le32(rts_threshold);
50488diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
50489index 9bb398b..b0cc047 100644
50490--- a/drivers/net/wireless/rt2x00/rt2x00.h
50491+++ b/drivers/net/wireless/rt2x00/rt2x00.h
50492@@ -375,7 +375,7 @@ struct rt2x00_intf {
50493 * for hardware which doesn't support hardware
50494 * sequence counting.
50495 */
50496- atomic_t seqno;
50497+ atomic_unchecked_t seqno;
50498 };
50499
50500 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
50501diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
50502index 68b620b..92ecd9e 100644
50503--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
50504+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
50505@@ -224,9 +224,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
50506 * sequence counter given by mac80211.
50507 */
50508 if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
50509- seqno = atomic_add_return(0x10, &intf->seqno);
50510+ seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
50511 else
50512- seqno = atomic_read(&intf->seqno);
50513+ seqno = atomic_read_unchecked(&intf->seqno);
50514
50515 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
50516 hdr->seq_ctrl |= cpu_to_le16(seqno);
50517diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
50518index b661f896..ddf7d2b 100644
50519--- a/drivers/net/wireless/ti/wl1251/sdio.c
50520+++ b/drivers/net/wireless/ti/wl1251/sdio.c
50521@@ -282,13 +282,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
50522
50523 irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
50524
50525- wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
50526- wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
50527+ pax_open_kernel();
50528+ *(void **)&wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
50529+ *(void **)&wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
50530+ pax_close_kernel();
50531
50532 wl1251_info("using dedicated interrupt line");
50533 } else {
50534- wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
50535- wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
50536+ pax_open_kernel();
50537+ *(void **)&wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
50538+ *(void **)&wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
50539+ pax_close_kernel();
50540
50541 wl1251_info("using SDIO interrupt");
50542 }
50543diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
50544index 144d1f8..7030936 100644
50545--- a/drivers/net/wireless/ti/wl12xx/main.c
50546+++ b/drivers/net/wireless/ti/wl12xx/main.c
50547@@ -657,7 +657,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
50548 sizeof(wl->conf.mem));
50549
50550 /* read data preparation is only needed by wl127x */
50551- wl->ops->prepare_read = wl127x_prepare_read;
50552+ pax_open_kernel();
50553+ *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
50554+ pax_close_kernel();
50555
50556 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
50557 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
50558@@ -682,7 +684,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
50559 sizeof(wl->conf.mem));
50560
50561 /* read data preparation is only needed by wl127x */
50562- wl->ops->prepare_read = wl127x_prepare_read;
50563+ pax_open_kernel();
50564+ *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
50565+ pax_close_kernel();
50566
50567 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
50568 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
50569diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
50570index 717c4f5..a813aeb 100644
50571--- a/drivers/net/wireless/ti/wl18xx/main.c
50572+++ b/drivers/net/wireless/ti/wl18xx/main.c
50573@@ -1923,8 +1923,10 @@ static int wl18xx_setup(struct wl1271 *wl)
50574 }
50575
50576 if (!checksum_param) {
50577- wl18xx_ops.set_rx_csum = NULL;
50578- wl18xx_ops.init_vif = NULL;
50579+ pax_open_kernel();
50580+ *(void **)&wl18xx_ops.set_rx_csum = NULL;
50581+ *(void **)&wl18xx_ops.init_vif = NULL;
50582+ pax_close_kernel();
50583 }
50584
50585 /* Enable 11a Band only if we have 5G antennas */
50586diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
50587index a912dc0..a8225ba 100644
50588--- a/drivers/net/wireless/zd1211rw/zd_usb.c
50589+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
50590@@ -385,7 +385,7 @@ static inline void handle_regs_int(struct urb *urb)
50591 {
50592 struct zd_usb *usb = urb->context;
50593 struct zd_usb_interrupt *intr = &usb->intr;
50594- int len;
50595+ unsigned int len;
50596 u16 int_num;
50597
50598 ZD_ASSERT(in_interrupt());
50599diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
50600index ce2e2cf..f81e500 100644
50601--- a/drivers/nfc/nfcwilink.c
50602+++ b/drivers/nfc/nfcwilink.c
50603@@ -497,7 +497,7 @@ static struct nci_ops nfcwilink_ops = {
50604
50605 static int nfcwilink_probe(struct platform_device *pdev)
50606 {
50607- static struct nfcwilink *drv;
50608+ struct nfcwilink *drv;
50609 int rc;
50610 __u32 protocols;
50611
50612diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
50613index 24d3d24..ff70d28 100644
50614--- a/drivers/nfc/st21nfca/st21nfca.c
50615+++ b/drivers/nfc/st21nfca/st21nfca.c
50616@@ -588,7 +588,7 @@ static int st21nfca_get_iso14443_3_uid(struct nfc_hci_dev *hdev, u8 *gate,
50617 goto exit;
50618 }
50619
50620- gate = uid_skb->data;
50621+ memcpy(gate, uid_skb->data, uid_skb->len);
50622 *len = uid_skb->len;
50623 exit:
50624 kfree_skb(uid_skb);
50625diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
50626index 3a896c9..ac7b1c8 100644
50627--- a/drivers/of/fdt.c
50628+++ b/drivers/of/fdt.c
50629@@ -1118,7 +1118,9 @@ static int __init of_fdt_raw_init(void)
50630 pr_warn("fdt: not creating '/sys/firmware/fdt': CRC check failed\n");
50631 return 0;
50632 }
50633- of_fdt_raw_attr.size = fdt_totalsize(initial_boot_params);
50634+ pax_open_kernel();
50635+ *(size_t *)&of_fdt_raw_attr.size = fdt_totalsize(initial_boot_params);
50636+ pax_close_kernel();
50637 return sysfs_create_bin_file(firmware_kobj, &of_fdt_raw_attr);
50638 }
50639 late_initcall(of_fdt_raw_init);
50640diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
50641index d93b2b6..ae50401 100644
50642--- a/drivers/oprofile/buffer_sync.c
50643+++ b/drivers/oprofile/buffer_sync.c
50644@@ -332,7 +332,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
50645 if (cookie == NO_COOKIE)
50646 offset = pc;
50647 if (cookie == INVALID_COOKIE) {
50648- atomic_inc(&oprofile_stats.sample_lost_no_mapping);
50649+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
50650 offset = pc;
50651 }
50652 if (cookie != last_cookie) {
50653@@ -376,14 +376,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
50654 /* add userspace sample */
50655
50656 if (!mm) {
50657- atomic_inc(&oprofile_stats.sample_lost_no_mm);
50658+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
50659 return 0;
50660 }
50661
50662 cookie = lookup_dcookie(mm, s->eip, &offset);
50663
50664 if (cookie == INVALID_COOKIE) {
50665- atomic_inc(&oprofile_stats.sample_lost_no_mapping);
50666+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
50667 return 0;
50668 }
50669
50670@@ -552,7 +552,7 @@ void sync_buffer(int cpu)
50671 /* ignore backtraces if failed to add a sample */
50672 if (state == sb_bt_start) {
50673 state = sb_bt_ignore;
50674- atomic_inc(&oprofile_stats.bt_lost_no_mapping);
50675+ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
50676 }
50677 }
50678 release_mm(mm);
50679diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
50680index c0cc4e7..44d4e54 100644
50681--- a/drivers/oprofile/event_buffer.c
50682+++ b/drivers/oprofile/event_buffer.c
50683@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
50684 }
50685
50686 if (buffer_pos == buffer_size) {
50687- atomic_inc(&oprofile_stats.event_lost_overflow);
50688+ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
50689 return;
50690 }
50691
50692diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
50693index ed2c3ec..deda85a 100644
50694--- a/drivers/oprofile/oprof.c
50695+++ b/drivers/oprofile/oprof.c
50696@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
50697 if (oprofile_ops.switch_events())
50698 return;
50699
50700- atomic_inc(&oprofile_stats.multiplex_counter);
50701+ atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
50702 start_switch_worker();
50703 }
50704
50705diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
50706index ee2cfce..7f8f699 100644
50707--- a/drivers/oprofile/oprofile_files.c
50708+++ b/drivers/oprofile/oprofile_files.c
50709@@ -27,7 +27,7 @@ unsigned long oprofile_time_slice;
50710
50711 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
50712
50713-static ssize_t timeout_read(struct file *file, char __user *buf,
50714+static ssize_t __intentional_overflow(-1) timeout_read(struct file *file, char __user *buf,
50715 size_t count, loff_t *offset)
50716 {
50717 return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
50718diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
50719index 59659ce..6c860a0 100644
50720--- a/drivers/oprofile/oprofile_stats.c
50721+++ b/drivers/oprofile/oprofile_stats.c
50722@@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
50723 cpu_buf->sample_invalid_eip = 0;
50724 }
50725
50726- atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
50727- atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
50728- atomic_set(&oprofile_stats.event_lost_overflow, 0);
50729- atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
50730- atomic_set(&oprofile_stats.multiplex_counter, 0);
50731+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
50732+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
50733+ atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
50734+ atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
50735+ atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
50736 }
50737
50738
50739diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
50740index 1fc622b..8c48fc3 100644
50741--- a/drivers/oprofile/oprofile_stats.h
50742+++ b/drivers/oprofile/oprofile_stats.h
50743@@ -13,11 +13,11 @@
50744 #include <linux/atomic.h>
50745
50746 struct oprofile_stat_struct {
50747- atomic_t sample_lost_no_mm;
50748- atomic_t sample_lost_no_mapping;
50749- atomic_t bt_lost_no_mapping;
50750- atomic_t event_lost_overflow;
50751- atomic_t multiplex_counter;
50752+ atomic_unchecked_t sample_lost_no_mm;
50753+ atomic_unchecked_t sample_lost_no_mapping;
50754+ atomic_unchecked_t bt_lost_no_mapping;
50755+ atomic_unchecked_t event_lost_overflow;
50756+ atomic_unchecked_t multiplex_counter;
50757 };
50758
50759 extern struct oprofile_stat_struct oprofile_stats;
50760diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
50761index 3f49345..c750d0b 100644
50762--- a/drivers/oprofile/oprofilefs.c
50763+++ b/drivers/oprofile/oprofilefs.c
50764@@ -176,8 +176,8 @@ int oprofilefs_create_ro_ulong(struct dentry *root,
50765
50766 static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
50767 {
50768- atomic_t *val = file->private_data;
50769- return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
50770+ atomic_unchecked_t *val = file->private_data;
50771+ return oprofilefs_ulong_to_user(atomic_read_unchecked(val), buf, count, offset);
50772 }
50773
50774
50775@@ -189,7 +189,7 @@ static const struct file_operations atomic_ro_fops = {
50776
50777
50778 int oprofilefs_create_ro_atomic(struct dentry *root,
50779- char const *name, atomic_t *val)
50780+ char const *name, atomic_unchecked_t *val)
50781 {
50782 return __oprofilefs_create_file(root, name,
50783 &atomic_ro_fops, 0444, val);
50784diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
50785index bdef916..88c7dee 100644
50786--- a/drivers/oprofile/timer_int.c
50787+++ b/drivers/oprofile/timer_int.c
50788@@ -93,7 +93,7 @@ static int oprofile_cpu_notify(struct notifier_block *self,
50789 return NOTIFY_OK;
50790 }
50791
50792-static struct notifier_block __refdata oprofile_cpu_notifier = {
50793+static struct notifier_block oprofile_cpu_notifier = {
50794 .notifier_call = oprofile_cpu_notify,
50795 };
50796
50797diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
50798index 3b47080..6cd05dd 100644
50799--- a/drivers/parport/procfs.c
50800+++ b/drivers/parport/procfs.c
50801@@ -64,7 +64,7 @@ static int do_active_device(struct ctl_table *table, int write,
50802
50803 *ppos += len;
50804
50805- return copy_to_user(result, buffer, len) ? -EFAULT : 0;
50806+ return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
50807 }
50808
50809 #ifdef CONFIG_PARPORT_1284
50810@@ -106,7 +106,7 @@ static int do_autoprobe(struct ctl_table *table, int write,
50811
50812 *ppos += len;
50813
50814- return copy_to_user (result, buffer, len) ? -EFAULT : 0;
50815+ return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
50816 }
50817 #endif /* IEEE1284.3 support. */
50818
50819diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c
50820index ba46e58..90cfc24 100644
50821--- a/drivers/pci/host/pci-host-generic.c
50822+++ b/drivers/pci/host/pci-host-generic.c
50823@@ -26,9 +26,9 @@
50824 #include <linux/platform_device.h>
50825
50826 struct gen_pci_cfg_bus_ops {
50827+ struct pci_ops ops;
50828 u32 bus_shift;
50829- void __iomem *(*map_bus)(struct pci_bus *, unsigned int, int);
50830-};
50831+} __do_const;
50832
50833 struct gen_pci_cfg_windows {
50834 struct resource res;
50835@@ -56,8 +56,12 @@ static void __iomem *gen_pci_map_cfg_bus_cam(struct pci_bus *bus,
50836 }
50837
50838 static struct gen_pci_cfg_bus_ops gen_pci_cfg_cam_bus_ops = {
50839+ .ops = {
50840+ .map_bus = gen_pci_map_cfg_bus_cam,
50841+ .read = pci_generic_config_read,
50842+ .write = pci_generic_config_write,
50843+ },
50844 .bus_shift = 16,
50845- .map_bus = gen_pci_map_cfg_bus_cam,
50846 };
50847
50848 static void __iomem *gen_pci_map_cfg_bus_ecam(struct pci_bus *bus,
50849@@ -72,13 +76,12 @@ static void __iomem *gen_pci_map_cfg_bus_ecam(struct pci_bus *bus,
50850 }
50851
50852 static struct gen_pci_cfg_bus_ops gen_pci_cfg_ecam_bus_ops = {
50853+ .ops = {
50854+ .map_bus = gen_pci_map_cfg_bus_ecam,
50855+ .read = pci_generic_config_read,
50856+ .write = pci_generic_config_write,
50857+ },
50858 .bus_shift = 20,
50859- .map_bus = gen_pci_map_cfg_bus_ecam,
50860-};
50861-
50862-static struct pci_ops gen_pci_ops = {
50863- .read = pci_generic_config_read,
50864- .write = pci_generic_config_write,
50865 };
50866
50867 static const struct of_device_id gen_pci_of_match[] = {
50868@@ -219,7 +222,6 @@ static int gen_pci_probe(struct platform_device *pdev)
50869 .private_data = (void **)&pci,
50870 .setup = gen_pci_setup,
50871 .map_irq = of_irq_parse_and_map_pci,
50872- .ops = &gen_pci_ops,
50873 };
50874
50875 if (!pci)
50876@@ -241,7 +243,7 @@ static int gen_pci_probe(struct platform_device *pdev)
50877
50878 of_id = of_match_node(gen_pci_of_match, np);
50879 pci->cfg.ops = of_id->data;
50880- gen_pci_ops.map_bus = pci->cfg.ops->map_bus;
50881+ hw.ops = &pci->cfg.ops->ops;
50882 pci->host.dev.parent = dev;
50883 INIT_LIST_HEAD(&pci->host.windows);
50884 INIT_LIST_HEAD(&pci->resources);
50885diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
50886index 6ca2399..68d866b 100644
50887--- a/drivers/pci/hotplug/acpiphp_ibm.c
50888+++ b/drivers/pci/hotplug/acpiphp_ibm.c
50889@@ -452,7 +452,9 @@ static int __init ibm_acpiphp_init(void)
50890 goto init_cleanup;
50891 }
50892
50893- ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
50894+ pax_open_kernel();
50895+ *(size_t *)&ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
50896+ pax_close_kernel();
50897 retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
50898
50899 return retval;
50900diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
50901index 66b7bbe..26bee78 100644
50902--- a/drivers/pci/hotplug/cpcihp_generic.c
50903+++ b/drivers/pci/hotplug/cpcihp_generic.c
50904@@ -73,7 +73,6 @@ static u16 port;
50905 static unsigned int enum_bit;
50906 static u8 enum_mask;
50907
50908-static struct cpci_hp_controller_ops generic_hpc_ops;
50909 static struct cpci_hp_controller generic_hpc;
50910
50911 static int __init validate_parameters(void)
50912@@ -139,6 +138,10 @@ static int query_enum(void)
50913 return ((value & enum_mask) == enum_mask);
50914 }
50915
50916+static struct cpci_hp_controller_ops generic_hpc_ops = {
50917+ .query_enum = query_enum,
50918+};
50919+
50920 static int __init cpcihp_generic_init(void)
50921 {
50922 int status;
50923@@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
50924 pci_dev_put(dev);
50925
50926 memset(&generic_hpc, 0, sizeof (struct cpci_hp_controller));
50927- generic_hpc_ops.query_enum = query_enum;
50928 generic_hpc.ops = &generic_hpc_ops;
50929
50930 status = cpci_hp_register_controller(&generic_hpc);
50931diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
50932index 7ecf34e..effed62 100644
50933--- a/drivers/pci/hotplug/cpcihp_zt5550.c
50934+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
50935@@ -59,7 +59,6 @@
50936 /* local variables */
50937 static bool debug;
50938 static bool poll;
50939-static struct cpci_hp_controller_ops zt5550_hpc_ops;
50940 static struct cpci_hp_controller zt5550_hpc;
50941
50942 /* Primary cPCI bus bridge device */
50943@@ -204,6 +203,10 @@ static int zt5550_hc_disable_irq(void)
50944 return 0;
50945 }
50946
50947+static struct cpci_hp_controller_ops zt5550_hpc_ops = {
50948+ .query_enum = zt5550_hc_query_enum,
50949+};
50950+
50951 static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
50952 {
50953 int status;
50954@@ -215,16 +218,17 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
50955 dbg("returned from zt5550_hc_config");
50956
50957 memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
50958- zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
50959 zt5550_hpc.ops = &zt5550_hpc_ops;
50960 if (!poll) {
50961 zt5550_hpc.irq = hc_dev->irq;
50962 zt5550_hpc.irq_flags = IRQF_SHARED;
50963 zt5550_hpc.dev_id = hc_dev;
50964
50965- zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
50966- zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
50967- zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
50968+ pax_open_kernel();
50969+ *(void **)&zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
50970+ *(void **)&zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
50971+ *(void **)&zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
50972+ pax_open_kernel();
50973 } else {
50974 info("using ENUM# polling mode");
50975 }
50976diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
50977index 1e08ff8c..3cd145f 100644
50978--- a/drivers/pci/hotplug/cpqphp_nvram.c
50979+++ b/drivers/pci/hotplug/cpqphp_nvram.c
50980@@ -425,8 +425,10 @@ static u32 store_HRT (void __iomem *rom_start)
50981
50982 void compaq_nvram_init (void __iomem *rom_start)
50983 {
50984+#ifndef CONFIG_PAX_KERNEXEC
50985 if (rom_start)
50986 compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
50987+#endif
50988
50989 dbg("int15 entry = %p\n", compaq_int15_entry_point);
50990
50991diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
50992index 56d8486..f26113f 100644
50993--- a/drivers/pci/hotplug/pci_hotplug_core.c
50994+++ b/drivers/pci/hotplug/pci_hotplug_core.c
50995@@ -436,8 +436,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
50996 return -EINVAL;
50997 }
50998
50999- slot->ops->owner = owner;
51000- slot->ops->mod_name = mod_name;
51001+ pax_open_kernel();
51002+ *(struct module **)&slot->ops->owner = owner;
51003+ *(const char **)&slot->ops->mod_name = mod_name;
51004+ pax_close_kernel();
51005
51006 mutex_lock(&pci_hp_mutex);
51007 /*
51008diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
51009index 07aa722..84514b4 100644
51010--- a/drivers/pci/hotplug/pciehp_core.c
51011+++ b/drivers/pci/hotplug/pciehp_core.c
51012@@ -92,7 +92,7 @@ static int init_slot(struct controller *ctrl)
51013 struct slot *slot = ctrl->slot;
51014 struct hotplug_slot *hotplug = NULL;
51015 struct hotplug_slot_info *info = NULL;
51016- struct hotplug_slot_ops *ops = NULL;
51017+ hotplug_slot_ops_no_const *ops = NULL;
51018 char name[SLOT_NAME_SIZE];
51019 int retval = -ENOMEM;
51020
51021diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
51022index c3e7dfc..cbd9625 100644
51023--- a/drivers/pci/msi.c
51024+++ b/drivers/pci/msi.c
51025@@ -513,8 +513,8 @@ static int populate_msi_sysfs(struct pci_dev *pdev)
51026 {
51027 struct attribute **msi_attrs;
51028 struct attribute *msi_attr;
51029- struct device_attribute *msi_dev_attr;
51030- struct attribute_group *msi_irq_group;
51031+ device_attribute_no_const *msi_dev_attr;
51032+ attribute_group_no_const *msi_irq_group;
51033 const struct attribute_group **msi_irq_groups;
51034 struct msi_desc *entry;
51035 int ret = -ENOMEM;
51036@@ -573,7 +573,7 @@ error_attrs:
51037 count = 0;
51038 msi_attr = msi_attrs[count];
51039 while (msi_attr) {
51040- msi_dev_attr = container_of(msi_attr, struct device_attribute, attr);
51041+ msi_dev_attr = container_of(msi_attr, device_attribute_no_const, attr);
51042 kfree(msi_attr->name);
51043 kfree(msi_dev_attr);
51044 ++count;
51045diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
51046index 312f23a..d21181c 100644
51047--- a/drivers/pci/pci-sysfs.c
51048+++ b/drivers/pci/pci-sysfs.c
51049@@ -1140,7 +1140,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
51050 {
51051 /* allocate attribute structure, piggyback attribute name */
51052 int name_len = write_combine ? 13 : 10;
51053- struct bin_attribute *res_attr;
51054+ bin_attribute_no_const *res_attr;
51055 int retval;
51056
51057 res_attr = kzalloc(sizeof(*res_attr) + name_len, GFP_ATOMIC);
51058@@ -1317,7 +1317,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
51059 static int pci_create_capabilities_sysfs(struct pci_dev *dev)
51060 {
51061 int retval;
51062- struct bin_attribute *attr;
51063+ bin_attribute_no_const *attr;
51064
51065 /* If the device has VPD, try to expose it in sysfs. */
51066 if (dev->vpd) {
51067@@ -1364,7 +1364,7 @@ int __must_check pci_create_sysfs_dev_files(struct pci_dev *pdev)
51068 {
51069 int retval;
51070 int rom_size = 0;
51071- struct bin_attribute *attr;
51072+ bin_attribute_no_const *attr;
51073
51074 if (!sysfs_initialized)
51075 return -EACCES;
51076diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
51077index 4091f82..7d98eef 100644
51078--- a/drivers/pci/pci.h
51079+++ b/drivers/pci/pci.h
51080@@ -99,7 +99,7 @@ struct pci_vpd_ops {
51081 struct pci_vpd {
51082 unsigned int len;
51083 const struct pci_vpd_ops *ops;
51084- struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
51085+ bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
51086 };
51087
51088 int pci_vpd_pci22_init(struct pci_dev *dev);
51089diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
51090index 820740a..8b1c673 100644
51091--- a/drivers/pci/pcie/aspm.c
51092+++ b/drivers/pci/pcie/aspm.c
51093@@ -27,9 +27,9 @@
51094 #define MODULE_PARAM_PREFIX "pcie_aspm."
51095
51096 /* Note: those are not register definitions */
51097-#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */
51098-#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */
51099-#define ASPM_STATE_L1 (4) /* L1 state */
51100+#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */
51101+#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */
51102+#define ASPM_STATE_L1 (4U) /* L1 state */
51103 #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
51104 #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1)
51105
51106diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
51107index be35da2..ec16cdb 100644
51108--- a/drivers/pci/pcie/portdrv_pci.c
51109+++ b/drivers/pci/pcie/portdrv_pci.c
51110@@ -324,7 +324,7 @@ static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
51111 return 0;
51112 }
51113
51114-static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
51115+static const struct dmi_system_id __initconst pcie_portdrv_dmi_table[] = {
51116 /*
51117 * Boxes that should not use MSI for PCIe PME signaling.
51118 */
51119diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
51120index 8d2f400..c97cc91 100644
51121--- a/drivers/pci/probe.c
51122+++ b/drivers/pci/probe.c
51123@@ -175,7 +175,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
51124 u16 orig_cmd;
51125 struct pci_bus_region region, inverted_region;
51126
51127- mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
51128+ mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
51129
51130 /* No printks while decoding is disabled! */
51131 if (!dev->mmio_always_on) {
51132diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
51133index 3f155e7..0f4b1f0 100644
51134--- a/drivers/pci/proc.c
51135+++ b/drivers/pci/proc.c
51136@@ -434,7 +434,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
51137 static int __init pci_proc_init(void)
51138 {
51139 struct pci_dev *dev = NULL;
51140+
51141+#ifdef CONFIG_GRKERNSEC_PROC_ADD
51142+#ifdef CONFIG_GRKERNSEC_PROC_USER
51143+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
51144+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
51145+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
51146+#endif
51147+#else
51148 proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
51149+#endif
51150 proc_create("devices", 0, proc_bus_pci_dir,
51151 &proc_bus_pci_dev_operations);
51152 proc_initialized = 1;
51153diff --git a/drivers/platform/chrome/chromeos_pstore.c b/drivers/platform/chrome/chromeos_pstore.c
51154index 3474920..acc9581 100644
51155--- a/drivers/platform/chrome/chromeos_pstore.c
51156+++ b/drivers/platform/chrome/chromeos_pstore.c
51157@@ -13,7 +13,7 @@
51158 #include <linux/platform_device.h>
51159 #include <linux/pstore_ram.h>
51160
51161-static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
51162+static const struct dmi_system_id chromeos_pstore_dmi_table[] __initconst = {
51163 {
51164 /*
51165 * Today all Chromebooks/boxes ship with Google_* as version and
51166diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
51167index 1e1e594..8fe59c5 100644
51168--- a/drivers/platform/x86/alienware-wmi.c
51169+++ b/drivers/platform/x86/alienware-wmi.c
51170@@ -150,7 +150,7 @@ struct wmax_led_args {
51171 } __packed;
51172
51173 static struct platform_device *platform_device;
51174-static struct device_attribute *zone_dev_attrs;
51175+static device_attribute_no_const *zone_dev_attrs;
51176 static struct attribute **zone_attrs;
51177 static struct platform_zone *zone_data;
51178
51179@@ -160,7 +160,7 @@ static struct platform_driver platform_driver = {
51180 }
51181 };
51182
51183-static struct attribute_group zone_attribute_group = {
51184+static attribute_group_no_const zone_attribute_group = {
51185 .name = "rgb_zones",
51186 };
51187
51188diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
51189index 7543a56..367ca8ed 100644
51190--- a/drivers/platform/x86/asus-wmi.c
51191+++ b/drivers/platform/x86/asus-wmi.c
51192@@ -1589,6 +1589,10 @@ static int show_dsts(struct seq_file *m, void *data)
51193 int err;
51194 u32 retval = -1;
51195
51196+#ifdef CONFIG_GRKERNSEC_KMEM
51197+ return -EPERM;
51198+#endif
51199+
51200 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
51201
51202 if (err < 0)
51203@@ -1605,6 +1609,10 @@ static int show_devs(struct seq_file *m, void *data)
51204 int err;
51205 u32 retval = -1;
51206
51207+#ifdef CONFIG_GRKERNSEC_KMEM
51208+ return -EPERM;
51209+#endif
51210+
51211 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
51212 &retval);
51213
51214@@ -1629,6 +1637,10 @@ static int show_call(struct seq_file *m, void *data)
51215 union acpi_object *obj;
51216 acpi_status status;
51217
51218+#ifdef CONFIG_GRKERNSEC_KMEM
51219+ return -EPERM;
51220+#endif
51221+
51222 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
51223 1, asus->debug.method_id,
51224 &input, &output);
51225diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
51226index bceb30b..bf063d4 100644
51227--- a/drivers/platform/x86/compal-laptop.c
51228+++ b/drivers/platform/x86/compal-laptop.c
51229@@ -766,7 +766,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
51230 return 1;
51231 }
51232
51233-static struct dmi_system_id __initdata compal_dmi_table[] = {
51234+static const struct dmi_system_id __initconst compal_dmi_table[] = {
51235 {
51236 .ident = "FL90/IFL90",
51237 .matches = {
51238diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
51239index 458e6c9..089aee7 100644
51240--- a/drivers/platform/x86/hdaps.c
51241+++ b/drivers/platform/x86/hdaps.c
51242@@ -514,7 +514,7 @@ static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
51243 "ThinkPad T42p", so the order of the entries matters.
51244 If your ThinkPad is not recognized, please update to latest
51245 BIOS. This is especially the case for some R52 ThinkPads. */
51246-static struct dmi_system_id __initdata hdaps_whitelist[] = {
51247+static const struct dmi_system_id __initconst hdaps_whitelist[] = {
51248 HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
51249 HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
51250 HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
51251diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c
51252index 97c2be1..2ee50ce 100644
51253--- a/drivers/platform/x86/ibm_rtl.c
51254+++ b/drivers/platform/x86/ibm_rtl.c
51255@@ -227,7 +227,7 @@ static void rtl_teardown_sysfs(void) {
51256 }
51257
51258
51259-static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = {
51260+static const struct dmi_system_id __initconst ibm_rtl_dmi_table[] = {
51261 { \
51262 .matches = { \
51263 DMI_MATCH(DMI_SYS_VENDOR, "IBM"), \
51264diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
51265index a4a4258..a58a04c 100644
51266--- a/drivers/platform/x86/intel_oaktrail.c
51267+++ b/drivers/platform/x86/intel_oaktrail.c
51268@@ -298,7 +298,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
51269 return 0;
51270 }
51271
51272-static struct dmi_system_id __initdata oaktrail_dmi_table[] = {
51273+static const struct dmi_system_id __initconst oaktrail_dmi_table[] = {
51274 {
51275 .ident = "OakTrail platform",
51276 .matches = {
51277diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
51278index 0859877..59d596d 100644
51279--- a/drivers/platform/x86/msi-laptop.c
51280+++ b/drivers/platform/x86/msi-laptop.c
51281@@ -604,7 +604,7 @@ static int dmi_check_cb(const struct dmi_system_id *dmi)
51282 return 1;
51283 }
51284
51285-static struct dmi_system_id __initdata msi_dmi_table[] = {
51286+static const struct dmi_system_id __initconst msi_dmi_table[] = {
51287 {
51288 .ident = "MSI S270",
51289 .matches = {
51290@@ -999,12 +999,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
51291
51292 if (!quirks->ec_read_only) {
51293 /* allow userland write sysfs file */
51294- dev_attr_bluetooth.store = store_bluetooth;
51295- dev_attr_wlan.store = store_wlan;
51296- dev_attr_threeg.store = store_threeg;
51297- dev_attr_bluetooth.attr.mode |= S_IWUSR;
51298- dev_attr_wlan.attr.mode |= S_IWUSR;
51299- dev_attr_threeg.attr.mode |= S_IWUSR;
51300+ pax_open_kernel();
51301+ *(void **)&dev_attr_bluetooth.store = store_bluetooth;
51302+ *(void **)&dev_attr_wlan.store = store_wlan;
51303+ *(void **)&dev_attr_threeg.store = store_threeg;
51304+ *(umode_t *)&dev_attr_bluetooth.attr.mode |= S_IWUSR;
51305+ *(umode_t *)&dev_attr_wlan.attr.mode |= S_IWUSR;
51306+ *(umode_t *)&dev_attr_threeg.attr.mode |= S_IWUSR;
51307+ pax_close_kernel();
51308 }
51309
51310 /* disable hardware control by fn key */
51311diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
51312index 6d2bac0..ec2b029 100644
51313--- a/drivers/platform/x86/msi-wmi.c
51314+++ b/drivers/platform/x86/msi-wmi.c
51315@@ -183,7 +183,7 @@ static const struct backlight_ops msi_backlight_ops = {
51316 static void msi_wmi_notify(u32 value, void *context)
51317 {
51318 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
51319- static struct key_entry *key;
51320+ struct key_entry *key;
51321 union acpi_object *obj;
51322 acpi_status status;
51323
51324diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
51325index 9e701b2..c68a7b5 100644
51326--- a/drivers/platform/x86/samsung-laptop.c
51327+++ b/drivers/platform/x86/samsung-laptop.c
51328@@ -1567,7 +1567,7 @@ static int __init samsung_dmi_matched(const struct dmi_system_id *d)
51329 return 0;
51330 }
51331
51332-static struct dmi_system_id __initdata samsung_dmi_table[] = {
51333+static const struct dmi_system_id __initconst samsung_dmi_table[] = {
51334 {
51335 .matches = {
51336 DMI_MATCH(DMI_SYS_VENDOR,
51337diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c
51338index e6aac72..e11ff24 100644
51339--- a/drivers/platform/x86/samsung-q10.c
51340+++ b/drivers/platform/x86/samsung-q10.c
51341@@ -95,7 +95,7 @@ static int __init dmi_check_callback(const struct dmi_system_id *id)
51342 return 1;
51343 }
51344
51345-static struct dmi_system_id __initdata samsungq10_dmi_table[] = {
51346+static const struct dmi_system_id __initconst samsungq10_dmi_table[] = {
51347 {
51348 .ident = "Samsung Q10",
51349 .matches = {
51350diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
51351index e51c1e7..71bb385 100644
51352--- a/drivers/platform/x86/sony-laptop.c
51353+++ b/drivers/platform/x86/sony-laptop.c
51354@@ -2526,7 +2526,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
51355 }
51356
51357 /* High speed charging function */
51358-static struct device_attribute *hsc_handle;
51359+static device_attribute_no_const *hsc_handle;
51360
51361 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
51362 struct device_attribute *attr,
51363@@ -2600,7 +2600,7 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
51364 }
51365
51366 /* low battery function */
51367-static struct device_attribute *lowbatt_handle;
51368+static device_attribute_no_const *lowbatt_handle;
51369
51370 static ssize_t sony_nc_lowbatt_store(struct device *dev,
51371 struct device_attribute *attr,
51372@@ -2666,7 +2666,7 @@ static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
51373 }
51374
51375 /* fan speed function */
51376-static struct device_attribute *fan_handle, *hsf_handle;
51377+static device_attribute_no_const *fan_handle, *hsf_handle;
51378
51379 static ssize_t sony_nc_hsfan_store(struct device *dev,
51380 struct device_attribute *attr,
51381@@ -2773,7 +2773,7 @@ static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
51382 }
51383
51384 /* USB charge function */
51385-static struct device_attribute *uc_handle;
51386+static device_attribute_no_const *uc_handle;
51387
51388 static ssize_t sony_nc_usb_charge_store(struct device *dev,
51389 struct device_attribute *attr,
51390@@ -2847,7 +2847,7 @@ static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
51391 }
51392
51393 /* Panel ID function */
51394-static struct device_attribute *panel_handle;
51395+static device_attribute_no_const *panel_handle;
51396
51397 static ssize_t sony_nc_panelid_show(struct device *dev,
51398 struct device_attribute *attr, char *buffer)
51399@@ -2894,7 +2894,7 @@ static void sony_nc_panelid_cleanup(struct platform_device *pd)
51400 }
51401
51402 /* smart connect function */
51403-static struct device_attribute *sc_handle;
51404+static device_attribute_no_const *sc_handle;
51405
51406 static ssize_t sony_nc_smart_conn_store(struct device *dev,
51407 struct device_attribute *attr,
51408@@ -4854,7 +4854,7 @@ static struct acpi_driver sony_pic_driver = {
51409 .drv.pm = &sony_pic_pm,
51410 };
51411
51412-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
51413+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
51414 {
51415 .ident = "Sony Vaio",
51416 .matches = {
51417diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
51418index 3b8ceee..e18652c 100644
51419--- a/drivers/platform/x86/thinkpad_acpi.c
51420+++ b/drivers/platform/x86/thinkpad_acpi.c
51421@@ -2093,7 +2093,7 @@ static int hotkey_mask_get(void)
51422 return 0;
51423 }
51424
51425-void static hotkey_mask_warn_incomplete_mask(void)
51426+static void hotkey_mask_warn_incomplete_mask(void)
51427 {
51428 /* log only what the user can fix... */
51429 const u32 wantedmask = hotkey_driver_mask &
51430@@ -2437,10 +2437,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
51431 && !tp_features.bright_unkfw)
51432 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
51433 }
51434+}
51435
51436 #undef TPACPI_COMPARE_KEY
51437 #undef TPACPI_MAY_SEND_KEY
51438-}
51439
51440 /*
51441 * Polling driver
51442diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
51443index 438d4c7..ca8a2fb 100644
51444--- a/drivers/pnp/pnpbios/bioscalls.c
51445+++ b/drivers/pnp/pnpbios/bioscalls.c
51446@@ -59,7 +59,7 @@ do { \
51447 set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
51448 } while(0)
51449
51450-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
51451+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
51452 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
51453
51454 /*
51455@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
51456
51457 cpu = get_cpu();
51458 save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
51459+
51460+ pax_open_kernel();
51461 get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
51462+ pax_close_kernel();
51463
51464 /* On some boxes IRQ's during PnP BIOS calls are deadly. */
51465 spin_lock_irqsave(&pnp_bios_lock, flags);
51466@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
51467 :"memory");
51468 spin_unlock_irqrestore(&pnp_bios_lock, flags);
51469
51470+ pax_open_kernel();
51471 get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
51472+ pax_close_kernel();
51473+
51474 put_cpu();
51475
51476 /* If we get here and this is set then the PnP BIOS faulted on us. */
51477@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
51478 return status;
51479 }
51480
51481-void pnpbios_calls_init(union pnp_bios_install_struct *header)
51482+void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
51483 {
51484 int i;
51485
51486@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
51487 pnp_bios_callpoint.offset = header->fields.pm16offset;
51488 pnp_bios_callpoint.segment = PNP_CS16;
51489
51490+ pax_open_kernel();
51491+
51492 for_each_possible_cpu(i) {
51493 struct desc_struct *gdt = get_cpu_gdt_table(i);
51494 if (!gdt)
51495@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
51496 set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
51497 (unsigned long)__va(header->fields.pm16dseg));
51498 }
51499+
51500+ pax_close_kernel();
51501 }
51502diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
51503index facd43b..b291260 100644
51504--- a/drivers/pnp/pnpbios/core.c
51505+++ b/drivers/pnp/pnpbios/core.c
51506@@ -494,7 +494,7 @@ static int __init exploding_pnp_bios(const struct dmi_system_id *d)
51507 return 0;
51508 }
51509
51510-static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
51511+static const struct dmi_system_id pnpbios_dmi_table[] __initconst = {
51512 { /* PnPBIOS GPF on boot */
51513 .callback = exploding_pnp_bios,
51514 .ident = "Higraded P14H",
51515diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
51516index 0c52e2a..3421ab7 100644
51517--- a/drivers/power/pda_power.c
51518+++ b/drivers/power/pda_power.c
51519@@ -37,7 +37,11 @@ static int polling;
51520
51521 #if IS_ENABLED(CONFIG_USB_PHY)
51522 static struct usb_phy *transceiver;
51523-static struct notifier_block otg_nb;
51524+static int otg_handle_notification(struct notifier_block *nb,
51525+ unsigned long event, void *unused);
51526+static struct notifier_block otg_nb = {
51527+ .notifier_call = otg_handle_notification
51528+};
51529 #endif
51530
51531 static struct regulator *ac_draw;
51532@@ -369,7 +373,6 @@ static int pda_power_probe(struct platform_device *pdev)
51533
51534 #if IS_ENABLED(CONFIG_USB_PHY)
51535 if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
51536- otg_nb.notifier_call = otg_handle_notification;
51537 ret = usb_register_notifier(transceiver, &otg_nb);
51538 if (ret) {
51539 dev_err(dev, "failure to register otg notifier\n");
51540diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
51541index cc439fd..8fa30df 100644
51542--- a/drivers/power/power_supply.h
51543+++ b/drivers/power/power_supply.h
51544@@ -16,12 +16,12 @@ struct power_supply;
51545
51546 #ifdef CONFIG_SYSFS
51547
51548-extern void power_supply_init_attrs(struct device_type *dev_type);
51549+extern void power_supply_init_attrs(void);
51550 extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
51551
51552 #else
51553
51554-static inline void power_supply_init_attrs(struct device_type *dev_type) {}
51555+static inline void power_supply_init_attrs(void) {}
51556 #define power_supply_uevent NULL
51557
51558 #endif /* CONFIG_SYSFS */
51559diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
51560index 694e8cd..9f03483 100644
51561--- a/drivers/power/power_supply_core.c
51562+++ b/drivers/power/power_supply_core.c
51563@@ -28,7 +28,10 @@ EXPORT_SYMBOL_GPL(power_supply_class);
51564 ATOMIC_NOTIFIER_HEAD(power_supply_notifier);
51565 EXPORT_SYMBOL_GPL(power_supply_notifier);
51566
51567-static struct device_type power_supply_dev_type;
51568+extern const struct attribute_group *power_supply_attr_groups[];
51569+static struct device_type power_supply_dev_type = {
51570+ .groups = power_supply_attr_groups,
51571+};
51572
51573 static bool __power_supply_is_supplied_by(struct power_supply *supplier,
51574 struct power_supply *supply)
51575@@ -637,7 +640,7 @@ static int __init power_supply_class_init(void)
51576 return PTR_ERR(power_supply_class);
51577
51578 power_supply_class->dev_uevent = power_supply_uevent;
51579- power_supply_init_attrs(&power_supply_dev_type);
51580+ power_supply_init_attrs();
51581
51582 return 0;
51583 }
51584diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
51585index 62653f5..d0bb485 100644
51586--- a/drivers/power/power_supply_sysfs.c
51587+++ b/drivers/power/power_supply_sysfs.c
51588@@ -238,17 +238,15 @@ static struct attribute_group power_supply_attr_group = {
51589 .is_visible = power_supply_attr_is_visible,
51590 };
51591
51592-static const struct attribute_group *power_supply_attr_groups[] = {
51593+const struct attribute_group *power_supply_attr_groups[] = {
51594 &power_supply_attr_group,
51595 NULL,
51596 };
51597
51598-void power_supply_init_attrs(struct device_type *dev_type)
51599+void power_supply_init_attrs(void)
51600 {
51601 int i;
51602
51603- dev_type->groups = power_supply_attr_groups;
51604-
51605 for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
51606 __power_supply_attrs[i] = &power_supply_attrs[i].attr;
51607 }
51608diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
51609index 84419af..268ede8 100644
51610--- a/drivers/powercap/powercap_sys.c
51611+++ b/drivers/powercap/powercap_sys.c
51612@@ -154,8 +154,77 @@ struct powercap_constraint_attr {
51613 struct device_attribute name_attr;
51614 };
51615
51616+static ssize_t show_constraint_name(struct device *dev,
51617+ struct device_attribute *dev_attr,
51618+ char *buf);
51619+
51620 static struct powercap_constraint_attr
51621- constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
51622+ constraint_attrs[MAX_CONSTRAINTS_PER_ZONE] = {
51623+ [0 ... MAX_CONSTRAINTS_PER_ZONE - 1] = {
51624+ .power_limit_attr = {
51625+ .attr = {
51626+ .name = NULL,
51627+ .mode = S_IWUSR | S_IRUGO
51628+ },
51629+ .show = show_constraint_power_limit_uw,
51630+ .store = store_constraint_power_limit_uw
51631+ },
51632+
51633+ .time_window_attr = {
51634+ .attr = {
51635+ .name = NULL,
51636+ .mode = S_IWUSR | S_IRUGO
51637+ },
51638+ .show = show_constraint_time_window_us,
51639+ .store = store_constraint_time_window_us
51640+ },
51641+
51642+ .max_power_attr = {
51643+ .attr = {
51644+ .name = NULL,
51645+ .mode = S_IRUGO
51646+ },
51647+ .show = show_constraint_max_power_uw,
51648+ .store = NULL
51649+ },
51650+
51651+ .min_power_attr = {
51652+ .attr = {
51653+ .name = NULL,
51654+ .mode = S_IRUGO
51655+ },
51656+ .show = show_constraint_min_power_uw,
51657+ .store = NULL
51658+ },
51659+
51660+ .max_time_window_attr = {
51661+ .attr = {
51662+ .name = NULL,
51663+ .mode = S_IRUGO
51664+ },
51665+ .show = show_constraint_max_time_window_us,
51666+ .store = NULL
51667+ },
51668+
51669+ .min_time_window_attr = {
51670+ .attr = {
51671+ .name = NULL,
51672+ .mode = S_IRUGO
51673+ },
51674+ .show = show_constraint_min_time_window_us,
51675+ .store = NULL
51676+ },
51677+
51678+ .name_attr = {
51679+ .attr = {
51680+ .name = NULL,
51681+ .mode = S_IRUGO
51682+ },
51683+ .show = show_constraint_name,
51684+ .store = NULL
51685+ }
51686+ }
51687+};
51688
51689 /* A list of powercap control_types */
51690 static LIST_HEAD(powercap_cntrl_list);
51691@@ -193,23 +262,16 @@ static ssize_t show_constraint_name(struct device *dev,
51692 }
51693
51694 static int create_constraint_attribute(int id, const char *name,
51695- int mode,
51696- struct device_attribute *dev_attr,
51697- ssize_t (*show)(struct device *,
51698- struct device_attribute *, char *),
51699- ssize_t (*store)(struct device *,
51700- struct device_attribute *,
51701- const char *, size_t)
51702- )
51703+ struct device_attribute *dev_attr)
51704 {
51705+ name = kasprintf(GFP_KERNEL, "constraint_%d_%s", id, name);
51706
51707- dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
51708- id, name);
51709- if (!dev_attr->attr.name)
51710+ if (!name)
51711 return -ENOMEM;
51712- dev_attr->attr.mode = mode;
51713- dev_attr->show = show;
51714- dev_attr->store = store;
51715+
51716+ pax_open_kernel();
51717+ *(const char **)&dev_attr->attr.name = name;
51718+ pax_close_kernel();
51719
51720 return 0;
51721 }
51722@@ -236,49 +298,31 @@ static int seed_constraint_attributes(void)
51723
51724 for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
51725 ret = create_constraint_attribute(i, "power_limit_uw",
51726- S_IWUSR | S_IRUGO,
51727- &constraint_attrs[i].power_limit_attr,
51728- show_constraint_power_limit_uw,
51729- store_constraint_power_limit_uw);
51730+ &constraint_attrs[i].power_limit_attr);
51731 if (ret)
51732 goto err_alloc;
51733 ret = create_constraint_attribute(i, "time_window_us",
51734- S_IWUSR | S_IRUGO,
51735- &constraint_attrs[i].time_window_attr,
51736- show_constraint_time_window_us,
51737- store_constraint_time_window_us);
51738+ &constraint_attrs[i].time_window_attr);
51739 if (ret)
51740 goto err_alloc;
51741- ret = create_constraint_attribute(i, "name", S_IRUGO,
51742- &constraint_attrs[i].name_attr,
51743- show_constraint_name,
51744- NULL);
51745+ ret = create_constraint_attribute(i, "name",
51746+ &constraint_attrs[i].name_attr);
51747 if (ret)
51748 goto err_alloc;
51749- ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
51750- &constraint_attrs[i].max_power_attr,
51751- show_constraint_max_power_uw,
51752- NULL);
51753+ ret = create_constraint_attribute(i, "max_power_uw",
51754+ &constraint_attrs[i].max_power_attr);
51755 if (ret)
51756 goto err_alloc;
51757- ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
51758- &constraint_attrs[i].min_power_attr,
51759- show_constraint_min_power_uw,
51760- NULL);
51761+ ret = create_constraint_attribute(i, "min_power_uw",
51762+ &constraint_attrs[i].min_power_attr);
51763 if (ret)
51764 goto err_alloc;
51765 ret = create_constraint_attribute(i, "max_time_window_us",
51766- S_IRUGO,
51767- &constraint_attrs[i].max_time_window_attr,
51768- show_constraint_max_time_window_us,
51769- NULL);
51770+ &constraint_attrs[i].max_time_window_attr);
51771 if (ret)
51772 goto err_alloc;
51773 ret = create_constraint_attribute(i, "min_time_window_us",
51774- S_IRUGO,
51775- &constraint_attrs[i].min_time_window_attr,
51776- show_constraint_min_time_window_us,
51777- NULL);
51778+ &constraint_attrs[i].min_time_window_attr);
51779 if (ret)
51780 goto err_alloc;
51781
51782@@ -378,10 +422,12 @@ static void create_power_zone_common_attributes(
51783 power_zone->zone_dev_attrs[count++] =
51784 &dev_attr_max_energy_range_uj.attr;
51785 if (power_zone->ops->get_energy_uj) {
51786+ pax_open_kernel();
51787 if (power_zone->ops->reset_energy_uj)
51788- dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
51789+ *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
51790 else
51791- dev_attr_energy_uj.attr.mode = S_IRUGO;
51792+ *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IRUGO;
51793+ pax_close_kernel();
51794 power_zone->zone_dev_attrs[count++] =
51795 &dev_attr_energy_uj.attr;
51796 }
51797diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
51798index 9c5d414..c7900ce 100644
51799--- a/drivers/ptp/ptp_private.h
51800+++ b/drivers/ptp/ptp_private.h
51801@@ -51,7 +51,7 @@ struct ptp_clock {
51802 struct mutex pincfg_mux; /* protect concurrent info->pin_config access */
51803 wait_queue_head_t tsev_wq;
51804 int defunct; /* tells readers to go away when clock is being removed */
51805- struct device_attribute *pin_dev_attr;
51806+ device_attribute_no_const *pin_dev_attr;
51807 struct attribute **pin_attr;
51808 struct attribute_group pin_attr_group;
51809 };
51810diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
51811index 302e626..12579af 100644
51812--- a/drivers/ptp/ptp_sysfs.c
51813+++ b/drivers/ptp/ptp_sysfs.c
51814@@ -280,7 +280,7 @@ static int ptp_populate_pins(struct ptp_clock *ptp)
51815 goto no_pin_attr;
51816
51817 for (i = 0; i < n_pins; i++) {
51818- struct device_attribute *da = &ptp->pin_dev_attr[i];
51819+ device_attribute_no_const *da = &ptp->pin_dev_attr[i];
51820 sysfs_attr_init(&da->attr);
51821 da->attr.name = info->pin_config[i].name;
51822 da->attr.mode = 0644;
51823diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
51824index a4a8a6d..a3456f4 100644
51825--- a/drivers/regulator/core.c
51826+++ b/drivers/regulator/core.c
51827@@ -3529,7 +3529,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
51828 const struct regulation_constraints *constraints = NULL;
51829 const struct regulator_init_data *init_data;
51830 struct regulator_config *config = NULL;
51831- static atomic_t regulator_no = ATOMIC_INIT(-1);
51832+ static atomic_unchecked_t regulator_no = ATOMIC_INIT(-1);
51833 struct regulator_dev *rdev;
51834 struct device *dev;
51835 int ret, i;
51836@@ -3613,7 +3613,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
51837 rdev->dev.class = &regulator_class;
51838 rdev->dev.parent = dev;
51839 dev_set_name(&rdev->dev, "regulator.%lu",
51840- (unsigned long) atomic_inc_return(&regulator_no));
51841+ (unsigned long) atomic_inc_return_unchecked(&regulator_no));
51842 ret = device_register(&rdev->dev);
51843 if (ret != 0) {
51844 put_device(&rdev->dev);
51845diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
51846index 7eee2ca..4024513 100644
51847--- a/drivers/regulator/max8660.c
51848+++ b/drivers/regulator/max8660.c
51849@@ -424,8 +424,10 @@ static int max8660_probe(struct i2c_client *client,
51850 max8660->shadow_regs[MAX8660_OVER1] = 5;
51851 } else {
51852 /* Otherwise devices can be toggled via software */
51853- max8660_dcdc_ops.enable = max8660_dcdc_enable;
51854- max8660_dcdc_ops.disable = max8660_dcdc_disable;
51855+ pax_open_kernel();
51856+ *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
51857+ *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
51858+ pax_close_kernel();
51859 }
51860
51861 /*
51862diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
51863index c3d55c2..0dddfe6 100644
51864--- a/drivers/regulator/max8973-regulator.c
51865+++ b/drivers/regulator/max8973-regulator.c
51866@@ -403,9 +403,11 @@ static int max8973_probe(struct i2c_client *client,
51867 if (!pdata || !pdata->enable_ext_control) {
51868 max->desc.enable_reg = MAX8973_VOUT;
51869 max->desc.enable_mask = MAX8973_VOUT_ENABLE;
51870- max->ops.enable = regulator_enable_regmap;
51871- max->ops.disable = regulator_disable_regmap;
51872- max->ops.is_enabled = regulator_is_enabled_regmap;
51873+ pax_open_kernel();
51874+ *(void **)&max->ops.enable = regulator_enable_regmap;
51875+ *(void **)&max->ops.disable = regulator_disable_regmap;
51876+ *(void **)&max->ops.is_enabled = regulator_is_enabled_regmap;
51877+ pax_close_kernel();
51878 }
51879
51880 if (pdata) {
51881diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
51882index 0d17c92..a29f627 100644
51883--- a/drivers/regulator/mc13892-regulator.c
51884+++ b/drivers/regulator/mc13892-regulator.c
51885@@ -584,10 +584,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
51886 mc13xxx_unlock(mc13892);
51887
51888 /* update mc13892_vcam ops */
51889- memcpy(&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
51890+ pax_open_kernel();
51891+ memcpy((void *)&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
51892 sizeof(struct regulator_ops));
51893- mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode,
51894- mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode,
51895+ *(void **)&mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode,
51896+ *(void **)&mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode,
51897+ pax_close_kernel();
51898 mc13892_regulators[MC13892_VCAM].desc.ops = &mc13892_vcam_ops;
51899
51900 mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
51901diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
51902index 5b2e761..c8c8a4a 100644
51903--- a/drivers/rtc/rtc-cmos.c
51904+++ b/drivers/rtc/rtc-cmos.c
51905@@ -789,7 +789,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
51906 hpet_rtc_timer_init();
51907
51908 /* export at least the first block of NVRAM */
51909- nvram.size = address_space - NVRAM_OFFSET;
51910+ pax_open_kernel();
51911+ *(size_t *)&nvram.size = address_space - NVRAM_OFFSET;
51912+ pax_close_kernel();
51913 retval = sysfs_create_bin_file(&dev->kobj, &nvram);
51914 if (retval < 0) {
51915 dev_dbg(dev, "can't create nvram file? %d\n", retval);
51916diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
51917index 799c34b..8e9786a 100644
51918--- a/drivers/rtc/rtc-dev.c
51919+++ b/drivers/rtc/rtc-dev.c
51920@@ -16,6 +16,7 @@
51921 #include <linux/module.h>
51922 #include <linux/rtc.h>
51923 #include <linux/sched.h>
51924+#include <linux/grsecurity.h>
51925 #include "rtc-core.h"
51926
51927 static dev_t rtc_devt;
51928@@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
51929 if (copy_from_user(&tm, uarg, sizeof(tm)))
51930 return -EFAULT;
51931
51932+ gr_log_timechange();
51933+
51934 return rtc_set_time(rtc, &tm);
51935
51936 case RTC_PIE_ON:
51937diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
51938index 4ffabb3..1f87fca 100644
51939--- a/drivers/rtc/rtc-ds1307.c
51940+++ b/drivers/rtc/rtc-ds1307.c
51941@@ -107,7 +107,7 @@ struct ds1307 {
51942 u8 offset; /* register's offset */
51943 u8 regs[11];
51944 u16 nvram_offset;
51945- struct bin_attribute *nvram;
51946+ bin_attribute_no_const *nvram;
51947 enum ds_type type;
51948 unsigned long flags;
51949 #define HAS_NVRAM 0 /* bit 0 == sysfs file active */
51950diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
51951index 90abb5b..e0bf6dd 100644
51952--- a/drivers/rtc/rtc-m48t59.c
51953+++ b/drivers/rtc/rtc-m48t59.c
51954@@ -483,7 +483,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
51955 if (IS_ERR(m48t59->rtc))
51956 return PTR_ERR(m48t59->rtc);
51957
51958- m48t59_nvram_attr.size = pdata->offset;
51959+ pax_open_kernel();
51960+ *(size_t *)&m48t59_nvram_attr.size = pdata->offset;
51961+ pax_close_kernel();
51962
51963 ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
51964 if (ret)
51965diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
51966index e693af6..2e525b6 100644
51967--- a/drivers/scsi/bfa/bfa_fcpim.h
51968+++ b/drivers/scsi/bfa/bfa_fcpim.h
51969@@ -36,7 +36,7 @@ struct bfa_iotag_s {
51970
51971 struct bfa_itn_s {
51972 bfa_isr_func_t isr;
51973-};
51974+} __no_const;
51975
51976 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
51977 void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
51978diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
51979index 0f19455..ef7adb5 100644
51980--- a/drivers/scsi/bfa/bfa_fcs.c
51981+++ b/drivers/scsi/bfa/bfa_fcs.c
51982@@ -38,10 +38,21 @@ struct bfa_fcs_mod_s {
51983 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
51984
51985 static struct bfa_fcs_mod_s fcs_modules[] = {
51986- { bfa_fcs_port_attach, NULL, NULL },
51987- { bfa_fcs_uf_attach, NULL, NULL },
51988- { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
51989- bfa_fcs_fabric_modexit },
51990+ {
51991+ .attach = bfa_fcs_port_attach,
51992+ .modinit = NULL,
51993+ .modexit = NULL
51994+ },
51995+ {
51996+ .attach = bfa_fcs_uf_attach,
51997+ .modinit = NULL,
51998+ .modexit = NULL
51999+ },
52000+ {
52001+ .attach = bfa_fcs_fabric_attach,
52002+ .modinit = bfa_fcs_fabric_modinit,
52003+ .modexit = bfa_fcs_fabric_modexit
52004+ },
52005 };
52006
52007 /*
52008diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
52009index ff75ef8..2dfe00a 100644
52010--- a/drivers/scsi/bfa/bfa_fcs_lport.c
52011+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
52012@@ -89,15 +89,26 @@ static struct {
52013 void (*offline) (struct bfa_fcs_lport_s *port);
52014 } __port_action[] = {
52015 {
52016- bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
52017- bfa_fcs_lport_unknown_offline}, {
52018- bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
52019- bfa_fcs_lport_fab_offline}, {
52020- bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
52021- bfa_fcs_lport_n2n_offline}, {
52022- bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
52023- bfa_fcs_lport_loop_offline},
52024- };
52025+ .init = bfa_fcs_lport_unknown_init,
52026+ .online = bfa_fcs_lport_unknown_online,
52027+ .offline = bfa_fcs_lport_unknown_offline
52028+ },
52029+ {
52030+ .init = bfa_fcs_lport_fab_init,
52031+ .online = bfa_fcs_lport_fab_online,
52032+ .offline = bfa_fcs_lport_fab_offline
52033+ },
52034+ {
52035+ .init = bfa_fcs_lport_n2n_init,
52036+ .online = bfa_fcs_lport_n2n_online,
52037+ .offline = bfa_fcs_lport_n2n_offline
52038+ },
52039+ {
52040+ .init = bfa_fcs_lport_loop_init,
52041+ .online = bfa_fcs_lport_loop_online,
52042+ .offline = bfa_fcs_lport_loop_offline
52043+ },
52044+};
52045
52046 /*
52047 * fcs_port_sm FCS logical port state machine
52048diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
52049index a38aafa0..fe8f03b 100644
52050--- a/drivers/scsi/bfa/bfa_ioc.h
52051+++ b/drivers/scsi/bfa/bfa_ioc.h
52052@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
52053 bfa_ioc_disable_cbfn_t disable_cbfn;
52054 bfa_ioc_hbfail_cbfn_t hbfail_cbfn;
52055 bfa_ioc_reset_cbfn_t reset_cbfn;
52056-};
52057+} __no_const;
52058
52059 /*
52060 * IOC event notification mechanism.
52061@@ -352,7 +352,7 @@ struct bfa_ioc_hwif_s {
52062 void (*ioc_set_alt_fwstate) (struct bfa_ioc_s *ioc,
52063 enum bfi_ioc_state fwstate);
52064 enum bfi_ioc_state (*ioc_get_alt_fwstate) (struct bfa_ioc_s *ioc);
52065-};
52066+} __no_const;
52067
52068 /*
52069 * Queue element to wait for room in request queue. FIFO order is
52070diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
52071index a14c784..6de6790 100644
52072--- a/drivers/scsi/bfa/bfa_modules.h
52073+++ b/drivers/scsi/bfa/bfa_modules.h
52074@@ -78,12 +78,12 @@ enum {
52075 \
52076 extern struct bfa_module_s hal_mod_ ## __mod; \
52077 struct bfa_module_s hal_mod_ ## __mod = { \
52078- bfa_ ## __mod ## _meminfo, \
52079- bfa_ ## __mod ## _attach, \
52080- bfa_ ## __mod ## _detach, \
52081- bfa_ ## __mod ## _start, \
52082- bfa_ ## __mod ## _stop, \
52083- bfa_ ## __mod ## _iocdisable, \
52084+ .meminfo = bfa_ ## __mod ## _meminfo, \
52085+ .attach = bfa_ ## __mod ## _attach, \
52086+ .detach = bfa_ ## __mod ## _detach, \
52087+ .start = bfa_ ## __mod ## _start, \
52088+ .stop = bfa_ ## __mod ## _stop, \
52089+ .iocdisable = bfa_ ## __mod ## _iocdisable, \
52090 }
52091
52092 #define BFA_CACHELINE_SZ (256)
52093diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
52094index 045c4e1..13de803 100644
52095--- a/drivers/scsi/fcoe/fcoe_sysfs.c
52096+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
52097@@ -33,8 +33,8 @@
52098 */
52099 #include "libfcoe.h"
52100
52101-static atomic_t ctlr_num;
52102-static atomic_t fcf_num;
52103+static atomic_unchecked_t ctlr_num;
52104+static atomic_unchecked_t fcf_num;
52105
52106 /*
52107 * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
52108@@ -685,7 +685,7 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
52109 if (!ctlr)
52110 goto out;
52111
52112- ctlr->id = atomic_inc_return(&ctlr_num) - 1;
52113+ ctlr->id = atomic_inc_return_unchecked(&ctlr_num) - 1;
52114 ctlr->f = f;
52115 ctlr->mode = FIP_CONN_TYPE_FABRIC;
52116 INIT_LIST_HEAD(&ctlr->fcfs);
52117@@ -902,7 +902,7 @@ struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
52118 fcf->dev.parent = &ctlr->dev;
52119 fcf->dev.bus = &fcoe_bus_type;
52120 fcf->dev.type = &fcoe_fcf_device_type;
52121- fcf->id = atomic_inc_return(&fcf_num) - 1;
52122+ fcf->id = atomic_inc_return_unchecked(&fcf_num) - 1;
52123 fcf->state = FCOE_FCF_STATE_UNKNOWN;
52124
52125 fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
52126@@ -938,8 +938,8 @@ int __init fcoe_sysfs_setup(void)
52127 {
52128 int error;
52129
52130- atomic_set(&ctlr_num, 0);
52131- atomic_set(&fcf_num, 0);
52132+ atomic_set_unchecked(&ctlr_num, 0);
52133+ atomic_set_unchecked(&fcf_num, 0);
52134
52135 error = bus_register(&fcoe_bus_type);
52136 if (error)
52137diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
52138index 8bb173e..20236b4 100644
52139--- a/drivers/scsi/hosts.c
52140+++ b/drivers/scsi/hosts.c
52141@@ -42,7 +42,7 @@
52142 #include "scsi_logging.h"
52143
52144
52145-static atomic_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
52146+static atomic_unchecked_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
52147
52148
52149 static void scsi_host_cls_release(struct device *dev)
52150@@ -392,7 +392,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
52151 * subtract one because we increment first then return, but we need to
52152 * know what the next host number was before increment
52153 */
52154- shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
52155+ shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
52156 shost->dma_channel = 0xff;
52157
52158 /* These three are default values which can be overridden */
52159diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
52160index a1cfbd3..d7f8ebc 100644
52161--- a/drivers/scsi/hpsa.c
52162+++ b/drivers/scsi/hpsa.c
52163@@ -697,10 +697,10 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
52164 struct reply_queue_buffer *rq = &h->reply_queue[q];
52165
52166 if (h->transMethod & CFGTBL_Trans_io_accel1)
52167- return h->access.command_completed(h, q);
52168+ return h->access->command_completed(h, q);
52169
52170 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
52171- return h->access.command_completed(h, q);
52172+ return h->access->command_completed(h, q);
52173
52174 if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
52175 a = rq->head[rq->current_entry];
52176@@ -837,7 +837,7 @@ static void enqueue_cmd_and_start_io(struct ctlr_info *h,
52177 break;
52178 default:
52179 set_performant_mode(h, c);
52180- h->access.submit_command(h, c);
52181+ h->access->submit_command(h, c);
52182 }
52183 }
52184
52185@@ -5369,17 +5369,17 @@ static void __iomem *remap_pci_mem(ulong base, ulong size)
52186
52187 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
52188 {
52189- return h->access.command_completed(h, q);
52190+ return h->access->command_completed(h, q);
52191 }
52192
52193 static inline bool interrupt_pending(struct ctlr_info *h)
52194 {
52195- return h->access.intr_pending(h);
52196+ return h->access->intr_pending(h);
52197 }
52198
52199 static inline long interrupt_not_for_us(struct ctlr_info *h)
52200 {
52201- return (h->access.intr_pending(h) == 0) ||
52202+ return (h->access->intr_pending(h) == 0) ||
52203 (h->interrupts_enabled == 0);
52204 }
52205
52206@@ -6270,7 +6270,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
52207 if (prod_index < 0)
52208 return prod_index;
52209 h->product_name = products[prod_index].product_name;
52210- h->access = *(products[prod_index].access);
52211+ h->access = products[prod_index].access;
52212
52213 pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
52214 PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
52215@@ -6649,7 +6649,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
52216 unsigned long flags;
52217 u32 lockup_detected;
52218
52219- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52220+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52221 spin_lock_irqsave(&h->lock, flags);
52222 lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
52223 if (!lockup_detected) {
52224@@ -6924,7 +6924,7 @@ reinit_after_soft_reset:
52225 }
52226
52227 /* make sure the board interrupts are off */
52228- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52229+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52230
52231 if (hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
52232 goto clean2;
52233@@ -6960,7 +6960,7 @@ reinit_after_soft_reset:
52234 * fake ones to scoop up any residual completions.
52235 */
52236 spin_lock_irqsave(&h->lock, flags);
52237- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52238+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52239 spin_unlock_irqrestore(&h->lock, flags);
52240 hpsa_free_irqs(h);
52241 rc = hpsa_request_irqs(h, hpsa_msix_discard_completions,
52242@@ -6979,9 +6979,9 @@ reinit_after_soft_reset:
52243 dev_info(&h->pdev->dev, "Board READY.\n");
52244 dev_info(&h->pdev->dev,
52245 "Waiting for stale completions to drain.\n");
52246- h->access.set_intr_mask(h, HPSA_INTR_ON);
52247+ h->access->set_intr_mask(h, HPSA_INTR_ON);
52248 msleep(10000);
52249- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52250+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52251
52252 rc = controller_reset_failed(h->cfgtable);
52253 if (rc)
52254@@ -7006,7 +7006,7 @@ reinit_after_soft_reset:
52255
52256
52257 /* Turn the interrupts on so we can service requests */
52258- h->access.set_intr_mask(h, HPSA_INTR_ON);
52259+ h->access->set_intr_mask(h, HPSA_INTR_ON);
52260
52261 hpsa_hba_inquiry(h);
52262 hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
52263@@ -7079,7 +7079,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
52264 * To write all data in the battery backed cache to disks
52265 */
52266 hpsa_flush_cache(h);
52267- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52268+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52269 hpsa_free_irqs_and_disable_msix(h);
52270 }
52271
52272@@ -7200,7 +7200,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52273 CFGTBL_Trans_enable_directed_msix |
52274 (trans_support & (CFGTBL_Trans_io_accel1 |
52275 CFGTBL_Trans_io_accel2));
52276- struct access_method access = SA5_performant_access;
52277+ struct access_method *access = &SA5_performant_access;
52278
52279 /* This is a bit complicated. There are 8 registers on
52280 * the controller which we write to to tell it 8 different
52281@@ -7242,7 +7242,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52282 * perform the superfluous readl() after each command submission.
52283 */
52284 if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2))
52285- access = SA5_performant_access_no_read;
52286+ access = &SA5_performant_access_no_read;
52287
52288 /* Controller spec: zero out this buffer. */
52289 for (i = 0; i < h->nreply_queues; i++)
52290@@ -7272,12 +7272,12 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52291 * enable outbound interrupt coalescing in accelerator mode;
52292 */
52293 if (trans_support & CFGTBL_Trans_io_accel1) {
52294- access = SA5_ioaccel_mode1_access;
52295+ access = &SA5_ioaccel_mode1_access;
52296 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
52297 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
52298 } else {
52299 if (trans_support & CFGTBL_Trans_io_accel2) {
52300- access = SA5_ioaccel_mode2_access;
52301+ access = &SA5_ioaccel_mode2_access;
52302 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
52303 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
52304 }
52305diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
52306index 6577130..955f9a4 100644
52307--- a/drivers/scsi/hpsa.h
52308+++ b/drivers/scsi/hpsa.h
52309@@ -143,7 +143,7 @@ struct ctlr_info {
52310 unsigned int msix_vector;
52311 unsigned int msi_vector;
52312 int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
52313- struct access_method access;
52314+ struct access_method *access;
52315 char hba_mode_enabled;
52316
52317 /* queue and queue Info */
52318@@ -525,38 +525,38 @@ static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q)
52319 }
52320
52321 static struct access_method SA5_access = {
52322- SA5_submit_command,
52323- SA5_intr_mask,
52324- SA5_intr_pending,
52325- SA5_completed,
52326+ .submit_command = SA5_submit_command,
52327+ .set_intr_mask = SA5_intr_mask,
52328+ .intr_pending = SA5_intr_pending,
52329+ .command_completed = SA5_completed,
52330 };
52331
52332 static struct access_method SA5_ioaccel_mode1_access = {
52333- SA5_submit_command,
52334- SA5_performant_intr_mask,
52335- SA5_ioaccel_mode1_intr_pending,
52336- SA5_ioaccel_mode1_completed,
52337+ .submit_command = SA5_submit_command,
52338+ .set_intr_mask = SA5_performant_intr_mask,
52339+ .intr_pending = SA5_ioaccel_mode1_intr_pending,
52340+ .command_completed = SA5_ioaccel_mode1_completed,
52341 };
52342
52343 static struct access_method SA5_ioaccel_mode2_access = {
52344- SA5_submit_command_ioaccel2,
52345- SA5_performant_intr_mask,
52346- SA5_performant_intr_pending,
52347- SA5_performant_completed,
52348+ .submit_command = SA5_submit_command_ioaccel2,
52349+ .set_intr_mask = SA5_performant_intr_mask,
52350+ .intr_pending = SA5_performant_intr_pending,
52351+ .command_completed = SA5_performant_completed,
52352 };
52353
52354 static struct access_method SA5_performant_access = {
52355- SA5_submit_command,
52356- SA5_performant_intr_mask,
52357- SA5_performant_intr_pending,
52358- SA5_performant_completed,
52359+ .submit_command = SA5_submit_command,
52360+ .set_intr_mask = SA5_performant_intr_mask,
52361+ .intr_pending = SA5_performant_intr_pending,
52362+ .command_completed = SA5_performant_completed,
52363 };
52364
52365 static struct access_method SA5_performant_access_no_read = {
52366- SA5_submit_command_no_read,
52367- SA5_performant_intr_mask,
52368- SA5_performant_intr_pending,
52369- SA5_performant_completed,
52370+ .submit_command = SA5_submit_command_no_read,
52371+ .set_intr_mask = SA5_performant_intr_mask,
52372+ .intr_pending = SA5_performant_intr_pending,
52373+ .command_completed = SA5_performant_completed,
52374 };
52375
52376 struct board_type {
52377diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
52378index 1b3a094..068e683 100644
52379--- a/drivers/scsi/libfc/fc_exch.c
52380+++ b/drivers/scsi/libfc/fc_exch.c
52381@@ -101,12 +101,12 @@ struct fc_exch_mgr {
52382 u16 pool_max_index;
52383
52384 struct {
52385- atomic_t no_free_exch;
52386- atomic_t no_free_exch_xid;
52387- atomic_t xid_not_found;
52388- atomic_t xid_busy;
52389- atomic_t seq_not_found;
52390- atomic_t non_bls_resp;
52391+ atomic_unchecked_t no_free_exch;
52392+ atomic_unchecked_t no_free_exch_xid;
52393+ atomic_unchecked_t xid_not_found;
52394+ atomic_unchecked_t xid_busy;
52395+ atomic_unchecked_t seq_not_found;
52396+ atomic_unchecked_t non_bls_resp;
52397 } stats;
52398 };
52399
52400@@ -811,7 +811,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
52401 /* allocate memory for exchange */
52402 ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
52403 if (!ep) {
52404- atomic_inc(&mp->stats.no_free_exch);
52405+ atomic_inc_unchecked(&mp->stats.no_free_exch);
52406 goto out;
52407 }
52408 memset(ep, 0, sizeof(*ep));
52409@@ -874,7 +874,7 @@ out:
52410 return ep;
52411 err:
52412 spin_unlock_bh(&pool->lock);
52413- atomic_inc(&mp->stats.no_free_exch_xid);
52414+ atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
52415 mempool_free(ep, mp->ep_pool);
52416 return NULL;
52417 }
52418@@ -1023,7 +1023,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52419 xid = ntohs(fh->fh_ox_id); /* we originated exch */
52420 ep = fc_exch_find(mp, xid);
52421 if (!ep) {
52422- atomic_inc(&mp->stats.xid_not_found);
52423+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52424 reject = FC_RJT_OX_ID;
52425 goto out;
52426 }
52427@@ -1053,7 +1053,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52428 ep = fc_exch_find(mp, xid);
52429 if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
52430 if (ep) {
52431- atomic_inc(&mp->stats.xid_busy);
52432+ atomic_inc_unchecked(&mp->stats.xid_busy);
52433 reject = FC_RJT_RX_ID;
52434 goto rel;
52435 }
52436@@ -1064,7 +1064,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52437 }
52438 xid = ep->xid; /* get our XID */
52439 } else if (!ep) {
52440- atomic_inc(&mp->stats.xid_not_found);
52441+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52442 reject = FC_RJT_RX_ID; /* XID not found */
52443 goto out;
52444 }
52445@@ -1082,7 +1082,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52446 } else {
52447 sp = &ep->seq;
52448 if (sp->id != fh->fh_seq_id) {
52449- atomic_inc(&mp->stats.seq_not_found);
52450+ atomic_inc_unchecked(&mp->stats.seq_not_found);
52451 if (f_ctl & FC_FC_END_SEQ) {
52452 /*
52453 * Update sequence_id based on incoming last
52454@@ -1533,22 +1533,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52455
52456 ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
52457 if (!ep) {
52458- atomic_inc(&mp->stats.xid_not_found);
52459+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52460 goto out;
52461 }
52462 if (ep->esb_stat & ESB_ST_COMPLETE) {
52463- atomic_inc(&mp->stats.xid_not_found);
52464+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52465 goto rel;
52466 }
52467 if (ep->rxid == FC_XID_UNKNOWN)
52468 ep->rxid = ntohs(fh->fh_rx_id);
52469 if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
52470- atomic_inc(&mp->stats.xid_not_found);
52471+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52472 goto rel;
52473 }
52474 if (ep->did != ntoh24(fh->fh_s_id) &&
52475 ep->did != FC_FID_FLOGI) {
52476- atomic_inc(&mp->stats.xid_not_found);
52477+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52478 goto rel;
52479 }
52480 sof = fr_sof(fp);
52481@@ -1557,7 +1557,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52482 sp->ssb_stat |= SSB_ST_RESP;
52483 sp->id = fh->fh_seq_id;
52484 } else if (sp->id != fh->fh_seq_id) {
52485- atomic_inc(&mp->stats.seq_not_found);
52486+ atomic_inc_unchecked(&mp->stats.seq_not_found);
52487 goto rel;
52488 }
52489
52490@@ -1619,9 +1619,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52491 sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */
52492
52493 if (!sp)
52494- atomic_inc(&mp->stats.xid_not_found);
52495+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52496 else
52497- atomic_inc(&mp->stats.non_bls_resp);
52498+ atomic_inc_unchecked(&mp->stats.non_bls_resp);
52499
52500 fc_frame_free(fp);
52501 }
52502@@ -2261,13 +2261,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
52503
52504 list_for_each_entry(ema, &lport->ema_list, ema_list) {
52505 mp = ema->mp;
52506- st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
52507+ st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
52508 st->fc_no_free_exch_xid +=
52509- atomic_read(&mp->stats.no_free_exch_xid);
52510- st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
52511- st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
52512- st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
52513- st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
52514+ atomic_read_unchecked(&mp->stats.no_free_exch_xid);
52515+ st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
52516+ st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
52517+ st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
52518+ st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
52519 }
52520 }
52521 EXPORT_SYMBOL(fc_exch_update_stats);
52522diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
52523index 9c706d8..d3e3ed2 100644
52524--- a/drivers/scsi/libsas/sas_ata.c
52525+++ b/drivers/scsi/libsas/sas_ata.c
52526@@ -535,7 +535,7 @@ static struct ata_port_operations sas_sata_ops = {
52527 .postreset = ata_std_postreset,
52528 .error_handler = ata_std_error_handler,
52529 .post_internal_cmd = sas_ata_post_internal,
52530- .qc_defer = ata_std_qc_defer,
52531+ .qc_defer = ata_std_qc_defer,
52532 .qc_prep = ata_noop_qc_prep,
52533 .qc_issue = sas_ata_qc_issue,
52534 .qc_fill_rtf = sas_ata_qc_fill_rtf,
52535diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
52536index 434e903..5a4a79b 100644
52537--- a/drivers/scsi/lpfc/lpfc.h
52538+++ b/drivers/scsi/lpfc/lpfc.h
52539@@ -430,7 +430,7 @@ struct lpfc_vport {
52540 struct dentry *debug_nodelist;
52541 struct dentry *vport_debugfs_root;
52542 struct lpfc_debugfs_trc *disc_trc;
52543- atomic_t disc_trc_cnt;
52544+ atomic_unchecked_t disc_trc_cnt;
52545 #endif
52546 uint8_t stat_data_enabled;
52547 uint8_t stat_data_blocked;
52548@@ -880,8 +880,8 @@ struct lpfc_hba {
52549 struct timer_list fabric_block_timer;
52550 unsigned long bit_flags;
52551 #define FABRIC_COMANDS_BLOCKED 0
52552- atomic_t num_rsrc_err;
52553- atomic_t num_cmd_success;
52554+ atomic_unchecked_t num_rsrc_err;
52555+ atomic_unchecked_t num_cmd_success;
52556 unsigned long last_rsrc_error_time;
52557 unsigned long last_ramp_down_time;
52558 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
52559@@ -916,7 +916,7 @@ struct lpfc_hba {
52560
52561 struct dentry *debug_slow_ring_trc;
52562 struct lpfc_debugfs_trc *slow_ring_trc;
52563- atomic_t slow_ring_trc_cnt;
52564+ atomic_unchecked_t slow_ring_trc_cnt;
52565 /* iDiag debugfs sub-directory */
52566 struct dentry *idiag_root;
52567 struct dentry *idiag_pci_cfg;
52568diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
52569index 5633e7d..8272114 100644
52570--- a/drivers/scsi/lpfc/lpfc_debugfs.c
52571+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
52572@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
52573
52574 #include <linux/debugfs.h>
52575
52576-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
52577+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
52578 static unsigned long lpfc_debugfs_start_time = 0L;
52579
52580 /* iDiag */
52581@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
52582 lpfc_debugfs_enable = 0;
52583
52584 len = 0;
52585- index = (atomic_read(&vport->disc_trc_cnt) + 1) &
52586+ index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
52587 (lpfc_debugfs_max_disc_trc - 1);
52588 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
52589 dtp = vport->disc_trc + i;
52590@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
52591 lpfc_debugfs_enable = 0;
52592
52593 len = 0;
52594- index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
52595+ index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
52596 (lpfc_debugfs_max_slow_ring_trc - 1);
52597 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
52598 dtp = phba->slow_ring_trc + i;
52599@@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
52600 !vport || !vport->disc_trc)
52601 return;
52602
52603- index = atomic_inc_return(&vport->disc_trc_cnt) &
52604+ index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
52605 (lpfc_debugfs_max_disc_trc - 1);
52606 dtp = vport->disc_trc + index;
52607 dtp->fmt = fmt;
52608 dtp->data1 = data1;
52609 dtp->data2 = data2;
52610 dtp->data3 = data3;
52611- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
52612+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
52613 dtp->jif = jiffies;
52614 #endif
52615 return;
52616@@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
52617 !phba || !phba->slow_ring_trc)
52618 return;
52619
52620- index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
52621+ index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
52622 (lpfc_debugfs_max_slow_ring_trc - 1);
52623 dtp = phba->slow_ring_trc + index;
52624 dtp->fmt = fmt;
52625 dtp->data1 = data1;
52626 dtp->data2 = data2;
52627 dtp->data3 = data3;
52628- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
52629+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
52630 dtp->jif = jiffies;
52631 #endif
52632 return;
52633@@ -4268,7 +4268,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
52634 "slow_ring buffer\n");
52635 goto debug_failed;
52636 }
52637- atomic_set(&phba->slow_ring_trc_cnt, 0);
52638+ atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
52639 memset(phba->slow_ring_trc, 0,
52640 (sizeof(struct lpfc_debugfs_trc) *
52641 lpfc_debugfs_max_slow_ring_trc));
52642@@ -4314,7 +4314,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
52643 "buffer\n");
52644 goto debug_failed;
52645 }
52646- atomic_set(&vport->disc_trc_cnt, 0);
52647+ atomic_set_unchecked(&vport->disc_trc_cnt, 0);
52648
52649 snprintf(name, sizeof(name), "discovery_trace");
52650 vport->debug_disc_trc =
52651diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
52652index 0b2c53a..aec2b45 100644
52653--- a/drivers/scsi/lpfc/lpfc_init.c
52654+++ b/drivers/scsi/lpfc/lpfc_init.c
52655@@ -11290,8 +11290,10 @@ lpfc_init(void)
52656 "misc_register returned with status %d", error);
52657
52658 if (lpfc_enable_npiv) {
52659- lpfc_transport_functions.vport_create = lpfc_vport_create;
52660- lpfc_transport_functions.vport_delete = lpfc_vport_delete;
52661+ pax_open_kernel();
52662+ *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
52663+ *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
52664+ pax_close_kernel();
52665 }
52666 lpfc_transport_template =
52667 fc_attach_transport(&lpfc_transport_functions);
52668diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
52669index 4f9222e..f1850e3 100644
52670--- a/drivers/scsi/lpfc/lpfc_scsi.c
52671+++ b/drivers/scsi/lpfc/lpfc_scsi.c
52672@@ -261,7 +261,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
52673 unsigned long expires;
52674
52675 spin_lock_irqsave(&phba->hbalock, flags);
52676- atomic_inc(&phba->num_rsrc_err);
52677+ atomic_inc_unchecked(&phba->num_rsrc_err);
52678 phba->last_rsrc_error_time = jiffies;
52679
52680 expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL;
52681@@ -303,8 +303,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
52682 unsigned long num_rsrc_err, num_cmd_success;
52683 int i;
52684
52685- num_rsrc_err = atomic_read(&phba->num_rsrc_err);
52686- num_cmd_success = atomic_read(&phba->num_cmd_success);
52687+ num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
52688+ num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
52689
52690 /*
52691 * The error and success command counters are global per
52692@@ -331,8 +331,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
52693 }
52694 }
52695 lpfc_destroy_vport_work_array(phba, vports);
52696- atomic_set(&phba->num_rsrc_err, 0);
52697- atomic_set(&phba->num_cmd_success, 0);
52698+ atomic_set_unchecked(&phba->num_rsrc_err, 0);
52699+ atomic_set_unchecked(&phba->num_cmd_success, 0);
52700 }
52701
52702 /**
52703diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52704index 3f26147..ee8efd1 100644
52705--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52706+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52707@@ -1509,7 +1509,7 @@ _scsih_get_resync(struct device *dev)
52708 {
52709 struct scsi_device *sdev = to_scsi_device(dev);
52710 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
52711- static struct _raid_device *raid_device;
52712+ struct _raid_device *raid_device;
52713 unsigned long flags;
52714 Mpi2RaidVolPage0_t vol_pg0;
52715 Mpi2ConfigReply_t mpi_reply;
52716@@ -1561,7 +1561,7 @@ _scsih_get_state(struct device *dev)
52717 {
52718 struct scsi_device *sdev = to_scsi_device(dev);
52719 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
52720- static struct _raid_device *raid_device;
52721+ struct _raid_device *raid_device;
52722 unsigned long flags;
52723 Mpi2RaidVolPage0_t vol_pg0;
52724 Mpi2ConfigReply_t mpi_reply;
52725@@ -6641,7 +6641,7 @@ _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
52726 Mpi2EventDataIrOperationStatus_t *event_data =
52727 (Mpi2EventDataIrOperationStatus_t *)
52728 fw_event->event_data;
52729- static struct _raid_device *raid_device;
52730+ struct _raid_device *raid_device;
52731 unsigned long flags;
52732 u16 handle;
52733
52734@@ -7112,7 +7112,7 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
52735 u64 sas_address;
52736 struct _sas_device *sas_device;
52737 struct _sas_node *expander_device;
52738- static struct _raid_device *raid_device;
52739+ struct _raid_device *raid_device;
52740 u8 retry_count;
52741 unsigned long flags;
52742
52743diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
52744index ed31d8c..ab856b3 100644
52745--- a/drivers/scsi/pmcraid.c
52746+++ b/drivers/scsi/pmcraid.c
52747@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
52748 res->scsi_dev = scsi_dev;
52749 scsi_dev->hostdata = res;
52750 res->change_detected = 0;
52751- atomic_set(&res->read_failures, 0);
52752- atomic_set(&res->write_failures, 0);
52753+ atomic_set_unchecked(&res->read_failures, 0);
52754+ atomic_set_unchecked(&res->write_failures, 0);
52755 rc = 0;
52756 }
52757 spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
52758@@ -2640,9 +2640,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
52759
52760 /* If this was a SCSI read/write command keep count of errors */
52761 if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
52762- atomic_inc(&res->read_failures);
52763+ atomic_inc_unchecked(&res->read_failures);
52764 else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
52765- atomic_inc(&res->write_failures);
52766+ atomic_inc_unchecked(&res->write_failures);
52767
52768 if (!RES_IS_GSCSI(res->cfg_entry) &&
52769 masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
52770@@ -3468,7 +3468,7 @@ static int pmcraid_queuecommand_lck(
52771 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
52772 * hrrq_id assigned here in queuecommand
52773 */
52774- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
52775+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
52776 pinstance->num_hrrq;
52777 cmd->cmd_done = pmcraid_io_done;
52778
52779@@ -3782,7 +3782,7 @@ static long pmcraid_ioctl_passthrough(
52780 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
52781 * hrrq_id assigned here in queuecommand
52782 */
52783- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
52784+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
52785 pinstance->num_hrrq;
52786
52787 if (request_size) {
52788@@ -4420,7 +4420,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
52789
52790 pinstance = container_of(workp, struct pmcraid_instance, worker_q);
52791 /* add resources only after host is added into system */
52792- if (!atomic_read(&pinstance->expose_resources))
52793+ if (!atomic_read_unchecked(&pinstance->expose_resources))
52794 return;
52795
52796 fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
52797@@ -5237,8 +5237,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
52798 init_waitqueue_head(&pinstance->reset_wait_q);
52799
52800 atomic_set(&pinstance->outstanding_cmds, 0);
52801- atomic_set(&pinstance->last_message_id, 0);
52802- atomic_set(&pinstance->expose_resources, 0);
52803+ atomic_set_unchecked(&pinstance->last_message_id, 0);
52804+ atomic_set_unchecked(&pinstance->expose_resources, 0);
52805
52806 INIT_LIST_HEAD(&pinstance->free_res_q);
52807 INIT_LIST_HEAD(&pinstance->used_res_q);
52808@@ -5951,7 +5951,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
52809 /* Schedule worker thread to handle CCN and take care of adding and
52810 * removing devices to OS
52811 */
52812- atomic_set(&pinstance->expose_resources, 1);
52813+ atomic_set_unchecked(&pinstance->expose_resources, 1);
52814 schedule_work(&pinstance->worker_q);
52815 return rc;
52816
52817diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
52818index e1d150f..6c6df44 100644
52819--- a/drivers/scsi/pmcraid.h
52820+++ b/drivers/scsi/pmcraid.h
52821@@ -748,7 +748,7 @@ struct pmcraid_instance {
52822 struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
52823
52824 /* Message id as filled in last fired IOARCB, used to identify HRRQ */
52825- atomic_t last_message_id;
52826+ atomic_unchecked_t last_message_id;
52827
52828 /* configuration table */
52829 struct pmcraid_config_table *cfg_table;
52830@@ -777,7 +777,7 @@ struct pmcraid_instance {
52831 atomic_t outstanding_cmds;
52832
52833 /* should add/delete resources to mid-layer now ?*/
52834- atomic_t expose_resources;
52835+ atomic_unchecked_t expose_resources;
52836
52837
52838
52839@@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
52840 struct pmcraid_config_table_entry_ext cfg_entry_ext;
52841 };
52842 struct scsi_device *scsi_dev; /* Link scsi_device structure */
52843- atomic_t read_failures; /* count of failed READ commands */
52844- atomic_t write_failures; /* count of failed WRITE commands */
52845+ atomic_unchecked_t read_failures; /* count of failed READ commands */
52846+ atomic_unchecked_t write_failures; /* count of failed WRITE commands */
52847
52848 /* To indicate add/delete/modify during CCN */
52849 u8 change_detected;
52850diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
52851index 82b92c4..3178171 100644
52852--- a/drivers/scsi/qla2xxx/qla_attr.c
52853+++ b/drivers/scsi/qla2xxx/qla_attr.c
52854@@ -2192,7 +2192,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
52855 return 0;
52856 }
52857
52858-struct fc_function_template qla2xxx_transport_functions = {
52859+fc_function_template_no_const qla2xxx_transport_functions = {
52860
52861 .show_host_node_name = 1,
52862 .show_host_port_name = 1,
52863@@ -2240,7 +2240,7 @@ struct fc_function_template qla2xxx_transport_functions = {
52864 .bsg_timeout = qla24xx_bsg_timeout,
52865 };
52866
52867-struct fc_function_template qla2xxx_transport_vport_functions = {
52868+fc_function_template_no_const qla2xxx_transport_vport_functions = {
52869
52870 .show_host_node_name = 1,
52871 .show_host_port_name = 1,
52872diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
52873index 7686bfe..4710893 100644
52874--- a/drivers/scsi/qla2xxx/qla_gbl.h
52875+++ b/drivers/scsi/qla2xxx/qla_gbl.h
52876@@ -571,8 +571,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *, size_t);
52877 struct device_attribute;
52878 extern struct device_attribute *qla2x00_host_attrs[];
52879 struct fc_function_template;
52880-extern struct fc_function_template qla2xxx_transport_functions;
52881-extern struct fc_function_template qla2xxx_transport_vport_functions;
52882+extern fc_function_template_no_const qla2xxx_transport_functions;
52883+extern fc_function_template_no_const qla2xxx_transport_vport_functions;
52884 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
52885 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
52886 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
52887diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
52888index cce1cbc..5b9f0fe 100644
52889--- a/drivers/scsi/qla2xxx/qla_os.c
52890+++ b/drivers/scsi/qla2xxx/qla_os.c
52891@@ -1435,8 +1435,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
52892 !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
52893 /* Ok, a 64bit DMA mask is applicable. */
52894 ha->flags.enable_64bit_addressing = 1;
52895- ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
52896- ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
52897+ pax_open_kernel();
52898+ *(void **)&ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
52899+ *(void **)&ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
52900+ pax_close_kernel();
52901 return;
52902 }
52903 }
52904diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
52905index 8f6d0fb..1b21097 100644
52906--- a/drivers/scsi/qla4xxx/ql4_def.h
52907+++ b/drivers/scsi/qla4xxx/ql4_def.h
52908@@ -305,7 +305,7 @@ struct ddb_entry {
52909 * (4000 only) */
52910 atomic_t relogin_timer; /* Max Time to wait for
52911 * relogin to complete */
52912- atomic_t relogin_retry_count; /* Num of times relogin has been
52913+ atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been
52914 * retried */
52915 uint32_t default_time2wait; /* Default Min time between
52916 * relogins (+aens) */
52917diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
52918index 6d25879..3031a9f 100644
52919--- a/drivers/scsi/qla4xxx/ql4_os.c
52920+++ b/drivers/scsi/qla4xxx/ql4_os.c
52921@@ -4491,12 +4491,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
52922 */
52923 if (!iscsi_is_session_online(cls_sess)) {
52924 /* Reset retry relogin timer */
52925- atomic_inc(&ddb_entry->relogin_retry_count);
52926+ atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
52927 DEBUG2(ql4_printk(KERN_INFO, ha,
52928 "%s: index[%d] relogin timed out-retrying"
52929 " relogin (%d), retry (%d)\n", __func__,
52930 ddb_entry->fw_ddb_index,
52931- atomic_read(&ddb_entry->relogin_retry_count),
52932+ atomic_read_unchecked(&ddb_entry->relogin_retry_count),
52933 ddb_entry->default_time2wait + 4));
52934 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
52935 atomic_set(&ddb_entry->retry_relogin_timer,
52936@@ -6604,7 +6604,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
52937
52938 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
52939 atomic_set(&ddb_entry->relogin_timer, 0);
52940- atomic_set(&ddb_entry->relogin_retry_count, 0);
52941+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
52942 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
52943 ddb_entry->default_relogin_timeout =
52944 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
52945diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
52946index b1a2631..5bcd9c8 100644
52947--- a/drivers/scsi/scsi_lib.c
52948+++ b/drivers/scsi/scsi_lib.c
52949@@ -1597,7 +1597,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
52950 shost = sdev->host;
52951 scsi_init_cmd_errh(cmd);
52952 cmd->result = DID_NO_CONNECT << 16;
52953- atomic_inc(&cmd->device->iorequest_cnt);
52954+ atomic_inc_unchecked(&cmd->device->iorequest_cnt);
52955
52956 /*
52957 * SCSI request completion path will do scsi_device_unbusy(),
52958@@ -1620,9 +1620,9 @@ static void scsi_softirq_done(struct request *rq)
52959
52960 INIT_LIST_HEAD(&cmd->eh_entry);
52961
52962- atomic_inc(&cmd->device->iodone_cnt);
52963+ atomic_inc_unchecked(&cmd->device->iodone_cnt);
52964 if (cmd->result)
52965- atomic_inc(&cmd->device->ioerr_cnt);
52966+ atomic_inc_unchecked(&cmd->device->ioerr_cnt);
52967
52968 disposition = scsi_decide_disposition(cmd);
52969 if (disposition != SUCCESS &&
52970@@ -1663,7 +1663,7 @@ static int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
52971 struct Scsi_Host *host = cmd->device->host;
52972 int rtn = 0;
52973
52974- atomic_inc(&cmd->device->iorequest_cnt);
52975+ atomic_inc_unchecked(&cmd->device->iorequest_cnt);
52976
52977 /* check if the device is still usable */
52978 if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
52979diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
52980index 1ac38e7..6acc656 100644
52981--- a/drivers/scsi/scsi_sysfs.c
52982+++ b/drivers/scsi/scsi_sysfs.c
52983@@ -788,7 +788,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \
52984 char *buf) \
52985 { \
52986 struct scsi_device *sdev = to_scsi_device(dev); \
52987- unsigned long long count = atomic_read(&sdev->field); \
52988+ unsigned long long count = atomic_read_unchecked(&sdev->field); \
52989 return snprintf(buf, 20, "0x%llx\n", count); \
52990 } \
52991 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
52992diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
52993index 5d6f348..18778a6b 100644
52994--- a/drivers/scsi/scsi_transport_fc.c
52995+++ b/drivers/scsi/scsi_transport_fc.c
52996@@ -501,7 +501,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
52997 * Netlink Infrastructure
52998 */
52999
53000-static atomic_t fc_event_seq;
53001+static atomic_unchecked_t fc_event_seq;
53002
53003 /**
53004 * fc_get_event_number - Obtain the next sequential FC event number
53005@@ -514,7 +514,7 @@ static atomic_t fc_event_seq;
53006 u32
53007 fc_get_event_number(void)
53008 {
53009- return atomic_add_return(1, &fc_event_seq);
53010+ return atomic_add_return_unchecked(1, &fc_event_seq);
53011 }
53012 EXPORT_SYMBOL(fc_get_event_number);
53013
53014@@ -658,7 +658,7 @@ static __init int fc_transport_init(void)
53015 {
53016 int error;
53017
53018- atomic_set(&fc_event_seq, 0);
53019+ atomic_set_unchecked(&fc_event_seq, 0);
53020
53021 error = transport_class_register(&fc_host_class);
53022 if (error)
53023@@ -848,7 +848,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
53024 char *cp;
53025
53026 *val = simple_strtoul(buf, &cp, 0);
53027- if ((*cp && (*cp != '\n')) || (*val < 0))
53028+ if (*cp && (*cp != '\n'))
53029 return -EINVAL;
53030 /*
53031 * Check for overflow; dev_loss_tmo is u32
53032diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
53033index 67d43e3..8cee73c 100644
53034--- a/drivers/scsi/scsi_transport_iscsi.c
53035+++ b/drivers/scsi/scsi_transport_iscsi.c
53036@@ -79,7 +79,7 @@ struct iscsi_internal {
53037 struct transport_container session_cont;
53038 };
53039
53040-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
53041+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
53042 static struct workqueue_struct *iscsi_eh_timer_workq;
53043
53044 static DEFINE_IDA(iscsi_sess_ida);
53045@@ -2071,7 +2071,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
53046 int err;
53047
53048 ihost = shost->shost_data;
53049- session->sid = atomic_add_return(1, &iscsi_session_nr);
53050+ session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
53051
53052 if (target_id == ISCSI_MAX_TARGET) {
53053 id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
53054@@ -4515,7 +4515,7 @@ static __init int iscsi_transport_init(void)
53055 printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
53056 ISCSI_TRANSPORT_VERSION);
53057
53058- atomic_set(&iscsi_session_nr, 0);
53059+ atomic_set_unchecked(&iscsi_session_nr, 0);
53060
53061 err = class_register(&iscsi_transport_class);
53062 if (err)
53063diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
53064index ae45bd9..c32a586 100644
53065--- a/drivers/scsi/scsi_transport_srp.c
53066+++ b/drivers/scsi/scsi_transport_srp.c
53067@@ -35,7 +35,7 @@
53068 #include "scsi_priv.h"
53069
53070 struct srp_host_attrs {
53071- atomic_t next_port_id;
53072+ atomic_unchecked_t next_port_id;
53073 };
53074 #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
53075
53076@@ -100,7 +100,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
53077 struct Scsi_Host *shost = dev_to_shost(dev);
53078 struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
53079
53080- atomic_set(&srp_host->next_port_id, 0);
53081+ atomic_set_unchecked(&srp_host->next_port_id, 0);
53082 return 0;
53083 }
53084
53085@@ -734,7 +734,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
53086 rport_fast_io_fail_timedout);
53087 INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
53088
53089- id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
53090+ id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
53091 dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
53092
53093 transport_setup_device(&rport->dev);
53094diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
53095index 3290a3e..d65ac1c 100644
53096--- a/drivers/scsi/sd.c
53097+++ b/drivers/scsi/sd.c
53098@@ -3006,7 +3006,7 @@ static int sd_probe(struct device *dev)
53099 sdkp->disk = gd;
53100 sdkp->index = index;
53101 atomic_set(&sdkp->openers, 0);
53102- atomic_set(&sdkp->device->ioerr_cnt, 0);
53103+ atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
53104
53105 if (!sdp->request_queue->rq_timeout) {
53106 if (sdp->type != TYPE_MOD)
53107diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
53108index 2270bd5..98408a5 100644
53109--- a/drivers/scsi/sg.c
53110+++ b/drivers/scsi/sg.c
53111@@ -1083,7 +1083,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
53112 sdp->disk->disk_name,
53113 MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
53114 NULL,
53115- (char *)arg);
53116+ (char __user *)arg);
53117 case BLKTRACESTART:
53118 return blk_trace_startstop(sdp->device->request_queue, 1);
53119 case BLKTRACESTOP:
53120diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
53121index c0d660f..24a5854 100644
53122--- a/drivers/soc/tegra/fuse/fuse-tegra.c
53123+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
53124@@ -71,7 +71,7 @@ static ssize_t fuse_read(struct file *fd, struct kobject *kobj,
53125 return i;
53126 }
53127
53128-static struct bin_attribute fuse_bin_attr = {
53129+static bin_attribute_no_const fuse_bin_attr = {
53130 .attr = { .name = "fuse", .mode = S_IRUGO, },
53131 .read = fuse_read,
53132 };
53133diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
53134index 57a1950..ae54e21 100644
53135--- a/drivers/spi/spi.c
53136+++ b/drivers/spi/spi.c
53137@@ -2307,7 +2307,7 @@ int spi_bus_unlock(struct spi_master *master)
53138 EXPORT_SYMBOL_GPL(spi_bus_unlock);
53139
53140 /* portable code must never pass more than 32 bytes */
53141-#define SPI_BUFSIZ max(32, SMP_CACHE_BYTES)
53142+#define SPI_BUFSIZ max(32UL, SMP_CACHE_BYTES)
53143
53144 static u8 *buf;
53145
53146diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
53147index b41429f..2de5373 100644
53148--- a/drivers/staging/android/timed_output.c
53149+++ b/drivers/staging/android/timed_output.c
53150@@ -25,7 +25,7 @@
53151 #include "timed_output.h"
53152
53153 static struct class *timed_output_class;
53154-static atomic_t device_count;
53155+static atomic_unchecked_t device_count;
53156
53157 static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
53158 char *buf)
53159@@ -65,7 +65,7 @@ static int create_timed_output_class(void)
53160 timed_output_class = class_create(THIS_MODULE, "timed_output");
53161 if (IS_ERR(timed_output_class))
53162 return PTR_ERR(timed_output_class);
53163- atomic_set(&device_count, 0);
53164+ atomic_set_unchecked(&device_count, 0);
53165 timed_output_class->dev_groups = timed_output_groups;
53166 }
53167
53168@@ -83,7 +83,7 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
53169 if (ret < 0)
53170 return ret;
53171
53172- tdev->index = atomic_inc_return(&device_count);
53173+ tdev->index = atomic_inc_return_unchecked(&device_count);
53174 tdev->dev = device_create(timed_output_class, NULL,
53175 MKDEV(0, tdev->index), NULL, "%s", tdev->name);
53176 if (IS_ERR(tdev->dev))
53177diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
53178index 727640e..55bf61c 100644
53179--- a/drivers/staging/comedi/comedi_fops.c
53180+++ b/drivers/staging/comedi/comedi_fops.c
53181@@ -297,8 +297,8 @@ static void comedi_file_reset(struct file *file)
53182 }
53183 cfp->last_attached = dev->attached;
53184 cfp->last_detach_count = dev->detach_count;
53185- ACCESS_ONCE(cfp->read_subdev) = read_s;
53186- ACCESS_ONCE(cfp->write_subdev) = write_s;
53187+ ACCESS_ONCE_RW(cfp->read_subdev) = read_s;
53188+ ACCESS_ONCE_RW(cfp->write_subdev) = write_s;
53189 }
53190
53191 static void comedi_file_check(struct file *file)
53192@@ -1924,7 +1924,7 @@ static int do_setrsubd_ioctl(struct comedi_device *dev, unsigned long arg,
53193 !(s_old->async->cmd.flags & CMDF_WRITE))
53194 return -EBUSY;
53195
53196- ACCESS_ONCE(cfp->read_subdev) = s_new;
53197+ ACCESS_ONCE_RW(cfp->read_subdev) = s_new;
53198 return 0;
53199 }
53200
53201@@ -1966,7 +1966,7 @@ static int do_setwsubd_ioctl(struct comedi_device *dev, unsigned long arg,
53202 (s_old->async->cmd.flags & CMDF_WRITE))
53203 return -EBUSY;
53204
53205- ACCESS_ONCE(cfp->write_subdev) = s_new;
53206+ ACCESS_ONCE_RW(cfp->write_subdev) = s_new;
53207 return 0;
53208 }
53209
53210diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
53211index 37dcf7e..f3c2016 100644
53212--- a/drivers/staging/fbtft/fbtft-core.c
53213+++ b/drivers/staging/fbtft/fbtft-core.c
53214@@ -689,7 +689,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
53215 {
53216 struct fb_info *info;
53217 struct fbtft_par *par;
53218- struct fb_ops *fbops = NULL;
53219+ fb_ops_no_const *fbops = NULL;
53220 struct fb_deferred_io *fbdefio = NULL;
53221 struct fbtft_platform_data *pdata = dev->platform_data;
53222 u8 *vmem = NULL;
53223diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
53224index 0dbf3f9..fed0063 100644
53225--- a/drivers/staging/fbtft/fbtft.h
53226+++ b/drivers/staging/fbtft/fbtft.h
53227@@ -106,7 +106,7 @@ struct fbtft_ops {
53228
53229 int (*set_var)(struct fbtft_par *par);
53230 int (*set_gamma)(struct fbtft_par *par, unsigned long *curves);
53231-};
53232+} __no_const;
53233
53234 /**
53235 * struct fbtft_display - Describes the display properties
53236diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
53237index 001348c..cfaac8a 100644
53238--- a/drivers/staging/gdm724x/gdm_tty.c
53239+++ b/drivers/staging/gdm724x/gdm_tty.c
53240@@ -44,7 +44,7 @@
53241 #define gdm_tty_send_control(n, r, v, d, l) (\
53242 n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
53243
53244-#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
53245+#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && atomic_read(&gdm->port.count))
53246
53247 static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
53248 static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
53249diff --git a/drivers/staging/i2o/i2o.h b/drivers/staging/i2o/i2o.h
53250index d23c3c2..eb63c81 100644
53251--- a/drivers/staging/i2o/i2o.h
53252+++ b/drivers/staging/i2o/i2o.h
53253@@ -565,7 +565,7 @@ struct i2o_controller {
53254 struct i2o_device *exec; /* Executive */
53255 #if BITS_PER_LONG == 64
53256 spinlock_t context_list_lock; /* lock for context_list */
53257- atomic_t context_list_counter; /* needed for unique contexts */
53258+ atomic_unchecked_t context_list_counter; /* needed for unique contexts */
53259 struct list_head context_list; /* list of context id's
53260 and pointers */
53261 #endif
53262diff --git a/drivers/staging/i2o/i2o_proc.c b/drivers/staging/i2o/i2o_proc.c
53263index ad84f33..c5bdf65 100644
53264--- a/drivers/staging/i2o/i2o_proc.c
53265+++ b/drivers/staging/i2o/i2o_proc.c
53266@@ -255,12 +255,6 @@ static char *scsi_devices[] = {
53267 "Array Controller Device"
53268 };
53269
53270-static char *chtostr(char *tmp, u8 *chars, int n)
53271-{
53272- tmp[0] = 0;
53273- return strncat(tmp, (char *)chars, n);
53274-}
53275-
53276 static int i2o_report_query_status(struct seq_file *seq, int block_status,
53277 char *group)
53278 {
53279@@ -707,9 +701,9 @@ static int i2o_seq_show_status(struct seq_file *seq, void *v)
53280 static int i2o_seq_show_hw(struct seq_file *seq, void *v)
53281 {
53282 struct i2o_controller *c = (struct i2o_controller *)seq->private;
53283- static u32 work32[5];
53284- static u8 *work8 = (u8 *) work32;
53285- static u16 *work16 = (u16 *) work32;
53286+ u32 work32[5];
53287+ u8 *work8 = (u8 *) work32;
53288+ u16 *work16 = (u16 *) work32;
53289 int token;
53290 u32 hwcap;
53291
53292@@ -790,7 +784,6 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
53293 } *result;
53294
53295 i2o_exec_execute_ddm_table ddm_table;
53296- char tmp[28 + 1];
53297
53298 result = kmalloc(sizeof(*result), GFP_KERNEL);
53299 if (!result)
53300@@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
53301
53302 seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
53303 seq_printf(seq, "%-#8x", ddm_table.module_id);
53304- seq_printf(seq, "%-29s",
53305- chtostr(tmp, ddm_table.module_name_version, 28));
53306+ seq_printf(seq, "%-.28s", ddm_table.module_name_version);
53307 seq_printf(seq, "%9d ", ddm_table.data_size);
53308 seq_printf(seq, "%8d", ddm_table.code_size);
53309
53310@@ -893,7 +885,6 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
53311
53312 i2o_driver_result_table *result;
53313 i2o_driver_store_table *dst;
53314- char tmp[28 + 1];
53315
53316 result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
53317 if (result == NULL)
53318@@ -928,9 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
53319
53320 seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
53321 seq_printf(seq, "%-#8x", dst->module_id);
53322- seq_printf(seq, "%-29s",
53323- chtostr(tmp, dst->module_name_version, 28));
53324- seq_printf(seq, "%-9s", chtostr(tmp, dst->date, 8));
53325+ seq_printf(seq, "%-.28s", dst->module_name_version);
53326+ seq_printf(seq, "%-.8s", dst->date);
53327 seq_printf(seq, "%8d ", dst->module_size);
53328 seq_printf(seq, "%8d ", dst->mpb_size);
53329 seq_printf(seq, "0x%04x", dst->module_flags);
53330@@ -1246,11 +1236,10 @@ static int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
53331 static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
53332 {
53333 struct i2o_device *d = (struct i2o_device *)seq->private;
53334- static u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
53335+ u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
53336 // == (allow) 512d bytes (max)
53337- static u16 *work16 = (u16 *) work32;
53338+ u16 *work16 = (u16 *) work32;
53339 int token;
53340- char tmp[16 + 1];
53341
53342 token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
53343
53344@@ -1262,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
53345 seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0]));
53346 seq_printf(seq, "Owner TID : %0#5x\n", work16[2]);
53347 seq_printf(seq, "Parent TID : %0#5x\n", work16[3]);
53348- seq_printf(seq, "Vendor info : %s\n",
53349- chtostr(tmp, (u8 *) (work32 + 2), 16));
53350- seq_printf(seq, "Product info : %s\n",
53351- chtostr(tmp, (u8 *) (work32 + 6), 16));
53352- seq_printf(seq, "Description : %s\n",
53353- chtostr(tmp, (u8 *) (work32 + 10), 16));
53354- seq_printf(seq, "Product rev. : %s\n",
53355- chtostr(tmp, (u8 *) (work32 + 14), 8));
53356+ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2));
53357+ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6));
53358+ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10));
53359+ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14));
53360
53361 seq_printf(seq, "Serial number : ");
53362 print_serial_number(seq, (u8 *) (work32 + 16),
53363@@ -1306,8 +1291,6 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
53364 u8 pad[256]; // allow up to 256 byte (max) serial number
53365 } result;
53366
53367- char tmp[24 + 1];
53368-
53369 token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
53370
53371 if (token < 0) {
53372@@ -1316,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
53373 }
53374
53375 seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
53376- seq_printf(seq, "Module name : %s\n",
53377- chtostr(tmp, result.module_name, 24));
53378- seq_printf(seq, "Module revision : %s\n",
53379- chtostr(tmp, result.module_rev, 8));
53380+ seq_printf(seq, "Module name : %.24s\n", result.module_name);
53381+ seq_printf(seq, "Module revision : %.8s\n", result.module_rev);
53382
53383 seq_printf(seq, "Serial number : ");
53384 print_serial_number(seq, result.serial_number, sizeof(result) - 36);
53385@@ -1343,8 +1324,6 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53386 u8 instance_number[4];
53387 } result;
53388
53389- char tmp[64 + 1];
53390-
53391 token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
53392
53393 if (token < 0) {
53394@@ -1352,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53395 return 0;
53396 }
53397
53398- seq_printf(seq, "Device name : %s\n",
53399- chtostr(tmp, result.device_name, 64));
53400- seq_printf(seq, "Service name : %s\n",
53401- chtostr(tmp, result.service_name, 64));
53402- seq_printf(seq, "Physical name : %s\n",
53403- chtostr(tmp, result.physical_location, 64));
53404- seq_printf(seq, "Instance number : %s\n",
53405- chtostr(tmp, result.instance_number, 4));
53406+ seq_printf(seq, "Device name : %.64s\n", result.device_name);
53407+ seq_printf(seq, "Service name : %.64s\n", result.service_name);
53408+ seq_printf(seq, "Physical name : %.64s\n", result.physical_location);
53409+ seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
53410
53411 return 0;
53412 }
53413@@ -1368,9 +1343,9 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53414 static int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
53415 {
53416 struct i2o_device *d = (struct i2o_device *)seq->private;
53417- static u32 work32[12];
53418- static u16 *work16 = (u16 *) work32;
53419- static u8 *work8 = (u8 *) work32;
53420+ u32 work32[12];
53421+ u16 *work16 = (u16 *) work32;
53422+ u8 *work8 = (u8 *) work32;
53423 int token;
53424
53425 token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
53426diff --git a/drivers/staging/i2o/iop.c b/drivers/staging/i2o/iop.c
53427index 52334fc..d7f40b3 100644
53428--- a/drivers/staging/i2o/iop.c
53429+++ b/drivers/staging/i2o/iop.c
53430@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
53431
53432 spin_lock_irqsave(&c->context_list_lock, flags);
53433
53434- if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
53435- atomic_inc(&c->context_list_counter);
53436+ if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
53437+ atomic_inc_unchecked(&c->context_list_counter);
53438
53439- entry->context = atomic_read(&c->context_list_counter);
53440+ entry->context = atomic_read_unchecked(&c->context_list_counter);
53441
53442 list_add(&entry->list, &c->context_list);
53443
53444@@ -1076,7 +1076,7 @@ struct i2o_controller *i2o_iop_alloc(void)
53445
53446 #if BITS_PER_LONG == 64
53447 spin_lock_init(&c->context_list_lock);
53448- atomic_set(&c->context_list_counter, 0);
53449+ atomic_set_unchecked(&c->context_list_counter, 0);
53450 INIT_LIST_HEAD(&c->context_list);
53451 #endif
53452
53453diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
53454index 463da07..e791ce9 100644
53455--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
53456+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
53457@@ -488,13 +488,11 @@ brw_server_handle(struct srpc_server_rpc *rpc)
53458 return 0;
53459 }
53460
53461-sfw_test_client_ops_t brw_test_client;
53462-void brw_init_test_client(void)
53463-{
53464- brw_test_client.tso_init = brw_client_init;
53465- brw_test_client.tso_fini = brw_client_fini;
53466- brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
53467- brw_test_client.tso_done_rpc = brw_client_done_rpc;
53468+sfw_test_client_ops_t brw_test_client = {
53469+ .tso_init = brw_client_init,
53470+ .tso_fini = brw_client_fini,
53471+ .tso_prep_rpc = brw_client_prep_rpc,
53472+ .tso_done_rpc = brw_client_done_rpc,
53473 };
53474
53475 srpc_service_t brw_test_service;
53476diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
53477index 5709148..ccd9e0d 100644
53478--- a/drivers/staging/lustre/lnet/selftest/framework.c
53479+++ b/drivers/staging/lustre/lnet/selftest/framework.c
53480@@ -1628,12 +1628,10 @@ static srpc_service_t sfw_services[] = {
53481
53482 extern sfw_test_client_ops_t ping_test_client;
53483 extern srpc_service_t ping_test_service;
53484-extern void ping_init_test_client(void);
53485 extern void ping_init_test_service(void);
53486
53487 extern sfw_test_client_ops_t brw_test_client;
53488 extern srpc_service_t brw_test_service;
53489-extern void brw_init_test_client(void);
53490 extern void brw_init_test_service(void);
53491
53492
53493@@ -1675,12 +1673,10 @@ sfw_startup (void)
53494 INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
53495 INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
53496
53497- brw_init_test_client();
53498 brw_init_test_service();
53499 rc = sfw_register_test(&brw_test_service, &brw_test_client);
53500 LASSERT (rc == 0);
53501
53502- ping_init_test_client();
53503 ping_init_test_service();
53504 rc = sfw_register_test(&ping_test_service, &ping_test_client);
53505 LASSERT (rc == 0);
53506diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
53507index d8c0df6..5041cbb 100644
53508--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
53509+++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
53510@@ -211,14 +211,12 @@ ping_server_handle(struct srpc_server_rpc *rpc)
53511 return 0;
53512 }
53513
53514-sfw_test_client_ops_t ping_test_client;
53515-void ping_init_test_client(void)
53516-{
53517- ping_test_client.tso_init = ping_client_init;
53518- ping_test_client.tso_fini = ping_client_fini;
53519- ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
53520- ping_test_client.tso_done_rpc = ping_client_done_rpc;
53521-}
53522+sfw_test_client_ops_t ping_test_client = {
53523+ .tso_init = ping_client_init,
53524+ .tso_fini = ping_client_fini,
53525+ .tso_prep_rpc = ping_client_prep_rpc,
53526+ .tso_done_rpc = ping_client_done_rpc,
53527+};
53528
53529 srpc_service_t ping_test_service;
53530 void ping_init_test_service(void)
53531diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
53532index 83bc0a9..12ba00a 100644
53533--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
53534+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
53535@@ -1139,7 +1139,7 @@ struct ldlm_callback_suite {
53536 ldlm_completion_callback lcs_completion;
53537 ldlm_blocking_callback lcs_blocking;
53538 ldlm_glimpse_callback lcs_glimpse;
53539-};
53540+} __no_const;
53541
53542 /* ldlm_lockd.c */
53543 int ldlm_del_waiting_lock(struct ldlm_lock *lock);
53544diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
53545index 2a88b80..62e7e5f 100644
53546--- a/drivers/staging/lustre/lustre/include/obd.h
53547+++ b/drivers/staging/lustre/lustre/include/obd.h
53548@@ -1362,7 +1362,7 @@ struct md_ops {
53549 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
53550 * wrapper function in include/linux/obd_class.h.
53551 */
53552-};
53553+} __no_const;
53554
53555 struct lsm_operations {
53556 void (*lsm_free)(struct lov_stripe_md *);
53557diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53558index a4c252f..b21acac 100644
53559--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53560+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53561@@ -258,7 +258,7 @@ ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags, int first_enq,
53562 int added = (mode == LCK_NL);
53563 int overlaps = 0;
53564 int splitted = 0;
53565- const struct ldlm_callback_suite null_cbs = { NULL };
53566+ const struct ldlm_callback_suite null_cbs = { };
53567
53568 CDEBUG(D_DLMTRACE,
53569 "flags %#llx owner %llu pid %u mode %u start %llu end %llu\n",
53570diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53571index c539e37..743b213 100644
53572--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53573+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53574@@ -237,7 +237,7 @@ static int proc_console_max_delay_cs(struct ctl_table *table, int write,
53575 loff_t *ppos)
53576 {
53577 int rc, max_delay_cs;
53578- struct ctl_table dummy = *table;
53579+ ctl_table_no_const dummy = *table;
53580 long d;
53581
53582 dummy.data = &max_delay_cs;
53583@@ -270,7 +270,7 @@ static int proc_console_min_delay_cs(struct ctl_table *table, int write,
53584 loff_t *ppos)
53585 {
53586 int rc, min_delay_cs;
53587- struct ctl_table dummy = *table;
53588+ ctl_table_no_const dummy = *table;
53589 long d;
53590
53591 dummy.data = &min_delay_cs;
53592@@ -302,7 +302,7 @@ static int proc_console_backoff(struct ctl_table *table, int write,
53593 void __user *buffer, size_t *lenp, loff_t *ppos)
53594 {
53595 int rc, backoff;
53596- struct ctl_table dummy = *table;
53597+ ctl_table_no_const dummy = *table;
53598
53599 dummy.data = &backoff;
53600 dummy.proc_handler = &proc_dointvec;
53601diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
53602index 7dc77dd..289d03e 100644
53603--- a/drivers/staging/lustre/lustre/libcfs/module.c
53604+++ b/drivers/staging/lustre/lustre/libcfs/module.c
53605@@ -313,11 +313,11 @@ out:
53606
53607
53608 struct cfs_psdev_ops libcfs_psdev_ops = {
53609- libcfs_psdev_open,
53610- libcfs_psdev_release,
53611- NULL,
53612- NULL,
53613- libcfs_ioctl
53614+ .p_open = libcfs_psdev_open,
53615+ .p_close = libcfs_psdev_release,
53616+ .p_read = NULL,
53617+ .p_write = NULL,
53618+ .p_ioctl = libcfs_ioctl
53619 };
53620
53621 extern int insert_proc(void);
53622diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
53623index 22667db..8b703b6 100644
53624--- a/drivers/staging/octeon/ethernet-rx.c
53625+++ b/drivers/staging/octeon/ethernet-rx.c
53626@@ -354,14 +354,14 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
53627 /* Increment RX stats for virtual ports */
53628 if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
53629 #ifdef CONFIG_64BIT
53630- atomic64_add(1,
53631+ atomic64_add_unchecked(1,
53632 (atomic64_t *)&priv->stats.rx_packets);
53633- atomic64_add(skb->len,
53634+ atomic64_add_unchecked(skb->len,
53635 (atomic64_t *)&priv->stats.rx_bytes);
53636 #else
53637- atomic_add(1,
53638+ atomic_add_unchecked(1,
53639 (atomic_t *)&priv->stats.rx_packets);
53640- atomic_add(skb->len,
53641+ atomic_add_unchecked(skb->len,
53642 (atomic_t *)&priv->stats.rx_bytes);
53643 #endif
53644 }
53645@@ -373,10 +373,10 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
53646 dev->name);
53647 */
53648 #ifdef CONFIG_64BIT
53649- atomic64_add(1,
53650+ atomic64_add_unchecked(1,
53651 (atomic64_t *)&priv->stats.rx_dropped);
53652 #else
53653- atomic_add(1,
53654+ atomic_add_unchecked(1,
53655 (atomic_t *)&priv->stats.rx_dropped);
53656 #endif
53657 dev_kfree_skb_irq(skb);
53658diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
53659index 460e854..f926452 100644
53660--- a/drivers/staging/octeon/ethernet.c
53661+++ b/drivers/staging/octeon/ethernet.c
53662@@ -241,11 +241,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
53663 * since the RX tasklet also increments it.
53664 */
53665 #ifdef CONFIG_64BIT
53666- atomic64_add(rx_status.dropped_packets,
53667- (atomic64_t *)&priv->stats.rx_dropped);
53668+ atomic64_add_unchecked(rx_status.dropped_packets,
53669+ (atomic64_unchecked_t *)&priv->stats.rx_dropped);
53670 #else
53671- atomic_add(rx_status.dropped_packets,
53672- (atomic_t *)&priv->stats.rx_dropped);
53673+ atomic_add_unchecked(rx_status.dropped_packets,
53674+ (atomic_unchecked_t *)&priv->stats.rx_dropped);
53675 #endif
53676 }
53677
53678diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
53679index 3b476d8..f522d68 100644
53680--- a/drivers/staging/rtl8188eu/include/hal_intf.h
53681+++ b/drivers/staging/rtl8188eu/include/hal_intf.h
53682@@ -225,7 +225,7 @@ struct hal_ops {
53683
53684 void (*hal_notch_filter)(struct adapter *adapter, bool enable);
53685 void (*hal_reset_security_engine)(struct adapter *adapter);
53686-};
53687+} __no_const;
53688
53689 enum rt_eeprom_type {
53690 EEPROM_93C46,
53691diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
53692index 070cc03..6806e37 100644
53693--- a/drivers/staging/rtl8712/rtl871x_io.h
53694+++ b/drivers/staging/rtl8712/rtl871x_io.h
53695@@ -108,7 +108,7 @@ struct _io_ops {
53696 u8 *pmem);
53697 u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
53698 u8 *pmem);
53699-};
53700+} __no_const;
53701
53702 struct io_req {
53703 struct list_head list;
53704diff --git a/drivers/staging/unisys/visorchipset/visorchipset.h b/drivers/staging/unisys/visorchipset/visorchipset.h
53705index 98f3ba4..c6a7fce 100644
53706--- a/drivers/staging/unisys/visorchipset/visorchipset.h
53707+++ b/drivers/staging/unisys/visorchipset/visorchipset.h
53708@@ -171,7 +171,7 @@ struct visorchipset_busdev_notifiers {
53709 void (*device_resume)(ulong bus_no, ulong dev_no);
53710 int (*get_channel_info)(uuid_le type_uuid, ulong *min_size,
53711 ulong *max_size);
53712-};
53713+} __no_const;
53714
53715 /* These functions live inside visorchipset, and will be called to indicate
53716 * responses to specific events (by code outside of visorchipset).
53717@@ -186,7 +186,7 @@ struct visorchipset_busdev_responders {
53718 void (*device_destroy)(ulong bus_no, ulong dev_no, int response);
53719 void (*device_pause)(ulong bus_no, ulong dev_no, int response);
53720 void (*device_resume)(ulong bus_no, ulong dev_no, int response);
53721-};
53722+} __no_const;
53723
53724 /** Register functions (in the bus driver) to get called by visorchipset
53725 * whenever a bus or device appears for which this service partition is
53726diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
53727index 9512af6..045bf5a 100644
53728--- a/drivers/target/sbp/sbp_target.c
53729+++ b/drivers/target/sbp/sbp_target.c
53730@@ -62,7 +62,7 @@ static const u32 sbp_unit_directory_template[] = {
53731
53732 #define SESSION_MAINTENANCE_INTERVAL HZ
53733
53734-static atomic_t login_id = ATOMIC_INIT(0);
53735+static atomic_unchecked_t login_id = ATOMIC_INIT(0);
53736
53737 static void session_maintenance_work(struct work_struct *);
53738 static int sbp_run_transaction(struct fw_card *, int, int, int, int,
53739@@ -444,7 +444,7 @@ static void sbp_management_request_login(
53740 login->lun = se_lun;
53741 login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
53742 login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
53743- login->login_id = atomic_inc_return(&login_id);
53744+ login->login_id = atomic_inc_return_unchecked(&login_id);
53745
53746 login->tgt_agt = sbp_target_agent_register(login);
53747 if (IS_ERR(login->tgt_agt)) {
53748diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
53749index 7faa6ae..ae6c410 100644
53750--- a/drivers/target/target_core_device.c
53751+++ b/drivers/target/target_core_device.c
53752@@ -1495,7 +1495,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
53753 spin_lock_init(&dev->se_tmr_lock);
53754 spin_lock_init(&dev->qf_cmd_lock);
53755 sema_init(&dev->caw_sem, 1);
53756- atomic_set(&dev->dev_ordered_id, 0);
53757+ atomic_set_unchecked(&dev->dev_ordered_id, 0);
53758 INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list);
53759 spin_lock_init(&dev->t10_wwn.t10_vpd_lock);
53760 INIT_LIST_HEAD(&dev->t10_pr.registration_list);
53761diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
53762index f786de0..04b643e 100644
53763--- a/drivers/target/target_core_transport.c
53764+++ b/drivers/target/target_core_transport.c
53765@@ -1168,7 +1168,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
53766 * Used to determine when ORDERED commands should go from
53767 * Dormant to Active status.
53768 */
53769- cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
53770+ cmd->se_ordered_id = atomic_inc_return_unchecked(&dev->dev_ordered_id);
53771 pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
53772 cmd->se_ordered_id, cmd->sam_task_attr,
53773 dev->transport->name);
53774diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c
53775index 031018e..90981a1 100644
53776--- a/drivers/thermal/int340x_thermal/int3400_thermal.c
53777+++ b/drivers/thermal/int340x_thermal/int3400_thermal.c
53778@@ -272,8 +272,10 @@ static int int3400_thermal_probe(struct platform_device *pdev)
53779 platform_set_drvdata(pdev, priv);
53780
53781 if (priv->uuid_bitmap & 1 << INT3400_THERMAL_PASSIVE_1) {
53782- int3400_thermal_ops.get_mode = int3400_thermal_get_mode;
53783- int3400_thermal_ops.set_mode = int3400_thermal_set_mode;
53784+ pax_open_kernel();
53785+ *(void **)&int3400_thermal_ops.get_mode = int3400_thermal_get_mode;
53786+ *(void **)&int3400_thermal_ops.set_mode = int3400_thermal_set_mode;
53787+ pax_close_kernel();
53788 }
53789 priv->thermal = thermal_zone_device_register("INT3400 Thermal", 0, 0,
53790 priv, &int3400_thermal_ops,
53791diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
53792index 668fb1b..2737bbe 100644
53793--- a/drivers/thermal/of-thermal.c
53794+++ b/drivers/thermal/of-thermal.c
53795@@ -31,6 +31,7 @@
53796 #include <linux/export.h>
53797 #include <linux/string.h>
53798 #include <linux/thermal.h>
53799+#include <linux/mm.h>
53800
53801 #include "thermal_core.h"
53802
53803@@ -412,9 +413,11 @@ thermal_zone_of_add_sensor(struct device_node *zone,
53804 tz->ops = ops;
53805 tz->sensor_data = data;
53806
53807- tzd->ops->get_temp = of_thermal_get_temp;
53808- tzd->ops->get_trend = of_thermal_get_trend;
53809- tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
53810+ pax_open_kernel();
53811+ *(void **)&tzd->ops->get_temp = of_thermal_get_temp;
53812+ *(void **)&tzd->ops->get_trend = of_thermal_get_trend;
53813+ *(void **)&tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
53814+ pax_close_kernel();
53815 mutex_unlock(&tzd->lock);
53816
53817 return tzd;
53818@@ -544,9 +547,11 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
53819 return;
53820
53821 mutex_lock(&tzd->lock);
53822- tzd->ops->get_temp = NULL;
53823- tzd->ops->get_trend = NULL;
53824- tzd->ops->set_emul_temp = NULL;
53825+ pax_open_kernel();
53826+ *(void **)&tzd->ops->get_temp = NULL;
53827+ *(void **)&tzd->ops->get_trend = NULL;
53828+ *(void **)&tzd->ops->set_emul_temp = NULL;
53829+ pax_close_kernel();
53830
53831 tz->ops = NULL;
53832 tz->sensor_data = NULL;
53833diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
53834index 9ea3d9d..53e8792 100644
53835--- a/drivers/thermal/x86_pkg_temp_thermal.c
53836+++ b/drivers/thermal/x86_pkg_temp_thermal.c
53837@@ -567,7 +567,7 @@ static int pkg_temp_thermal_cpu_callback(struct notifier_block *nfb,
53838 return NOTIFY_OK;
53839 }
53840
53841-static struct notifier_block pkg_temp_thermal_notifier __refdata = {
53842+static struct notifier_block pkg_temp_thermal_notifier __refconst = {
53843 .notifier_call = pkg_temp_thermal_cpu_callback,
53844 };
53845
53846diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
53847index fd66f57..48e6376 100644
53848--- a/drivers/tty/cyclades.c
53849+++ b/drivers/tty/cyclades.c
53850@@ -1570,10 +1570,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
53851 printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
53852 info->port.count);
53853 #endif
53854- info->port.count++;
53855+ atomic_inc(&info->port.count);
53856 #ifdef CY_DEBUG_COUNT
53857 printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
53858- current->pid, info->port.count);
53859+ current->pid, atomic_read(&info->port.count));
53860 #endif
53861
53862 /*
53863@@ -3974,7 +3974,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
53864 for (j = 0; j < cy_card[i].nports; j++) {
53865 info = &cy_card[i].ports[j];
53866
53867- if (info->port.count) {
53868+ if (atomic_read(&info->port.count)) {
53869 /* XXX is the ldisc num worth this? */
53870 struct tty_struct *tty;
53871 struct tty_ldisc *ld;
53872diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
53873index 4fcec1d..5a036f7 100644
53874--- a/drivers/tty/hvc/hvc_console.c
53875+++ b/drivers/tty/hvc/hvc_console.c
53876@@ -342,7 +342,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
53877
53878 spin_lock_irqsave(&hp->port.lock, flags);
53879 /* Check and then increment for fast path open. */
53880- if (hp->port.count++ > 0) {
53881+ if (atomic_inc_return(&hp->port.count) > 1) {
53882 spin_unlock_irqrestore(&hp->port.lock, flags);
53883 hvc_kick();
53884 return 0;
53885@@ -397,7 +397,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
53886
53887 spin_lock_irqsave(&hp->port.lock, flags);
53888
53889- if (--hp->port.count == 0) {
53890+ if (atomic_dec_return(&hp->port.count) == 0) {
53891 spin_unlock_irqrestore(&hp->port.lock, flags);
53892 /* We are done with the tty pointer now. */
53893 tty_port_tty_set(&hp->port, NULL);
53894@@ -419,9 +419,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
53895 */
53896 tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
53897 } else {
53898- if (hp->port.count < 0)
53899+ if (atomic_read(&hp->port.count) < 0)
53900 printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
53901- hp->vtermno, hp->port.count);
53902+ hp->vtermno, atomic_read(&hp->port.count));
53903 spin_unlock_irqrestore(&hp->port.lock, flags);
53904 }
53905 }
53906@@ -451,12 +451,12 @@ static void hvc_hangup(struct tty_struct *tty)
53907 * open->hangup case this can be called after the final close so prevent
53908 * that from happening for now.
53909 */
53910- if (hp->port.count <= 0) {
53911+ if (atomic_read(&hp->port.count) <= 0) {
53912 spin_unlock_irqrestore(&hp->port.lock, flags);
53913 return;
53914 }
53915
53916- hp->port.count = 0;
53917+ atomic_set(&hp->port.count, 0);
53918 spin_unlock_irqrestore(&hp->port.lock, flags);
53919 tty_port_tty_set(&hp->port, NULL);
53920
53921@@ -504,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
53922 return -EPIPE;
53923
53924 /* FIXME what's this (unprotected) check for? */
53925- if (hp->port.count <= 0)
53926+ if (atomic_read(&hp->port.count) <= 0)
53927 return -EIO;
53928
53929 spin_lock_irqsave(&hp->lock, flags);
53930diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
53931index 81ff7e1..dfb7b71 100644
53932--- a/drivers/tty/hvc/hvcs.c
53933+++ b/drivers/tty/hvc/hvcs.c
53934@@ -83,6 +83,7 @@
53935 #include <asm/hvcserver.h>
53936 #include <asm/uaccess.h>
53937 #include <asm/vio.h>
53938+#include <asm/local.h>
53939
53940 /*
53941 * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
53942@@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
53943
53944 spin_lock_irqsave(&hvcsd->lock, flags);
53945
53946- if (hvcsd->port.count > 0) {
53947+ if (atomic_read(&hvcsd->port.count) > 0) {
53948 spin_unlock_irqrestore(&hvcsd->lock, flags);
53949 printk(KERN_INFO "HVCS: vterm state unchanged. "
53950 "The hvcs device node is still in use.\n");
53951@@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
53952 }
53953 }
53954
53955- hvcsd->port.count = 0;
53956+ atomic_set(&hvcsd->port.count, 0);
53957 hvcsd->port.tty = tty;
53958 tty->driver_data = hvcsd;
53959
53960@@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
53961 unsigned long flags;
53962
53963 spin_lock_irqsave(&hvcsd->lock, flags);
53964- hvcsd->port.count++;
53965+ atomic_inc(&hvcsd->port.count);
53966 hvcsd->todo_mask |= HVCS_SCHED_READ;
53967 spin_unlock_irqrestore(&hvcsd->lock, flags);
53968
53969@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
53970 hvcsd = tty->driver_data;
53971
53972 spin_lock_irqsave(&hvcsd->lock, flags);
53973- if (--hvcsd->port.count == 0) {
53974+ if (atomic_dec_and_test(&hvcsd->port.count)) {
53975
53976 vio_disable_interrupts(hvcsd->vdev);
53977
53978@@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
53979
53980 free_irq(irq, hvcsd);
53981 return;
53982- } else if (hvcsd->port.count < 0) {
53983+ } else if (atomic_read(&hvcsd->port.count) < 0) {
53984 printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
53985 " is missmanaged.\n",
53986- hvcsd->vdev->unit_address, hvcsd->port.count);
53987+ hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
53988 }
53989
53990 spin_unlock_irqrestore(&hvcsd->lock, flags);
53991@@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
53992
53993 spin_lock_irqsave(&hvcsd->lock, flags);
53994 /* Preserve this so that we know how many kref refs to put */
53995- temp_open_count = hvcsd->port.count;
53996+ temp_open_count = atomic_read(&hvcsd->port.count);
53997
53998 /*
53999 * Don't kref put inside the spinlock because the destruction
54000@@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
54001 tty->driver_data = NULL;
54002 hvcsd->port.tty = NULL;
54003
54004- hvcsd->port.count = 0;
54005+ atomic_set(&hvcsd->port.count, 0);
54006
54007 /* This will drop any buffered data on the floor which is OK in a hangup
54008 * scenario. */
54009@@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
54010 * the middle of a write operation? This is a crummy place to do this
54011 * but we want to keep it all in the spinlock.
54012 */
54013- if (hvcsd->port.count <= 0) {
54014+ if (atomic_read(&hvcsd->port.count) <= 0) {
54015 spin_unlock_irqrestore(&hvcsd->lock, flags);
54016 return -ENODEV;
54017 }
54018@@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
54019 {
54020 struct hvcs_struct *hvcsd = tty->driver_data;
54021
54022- if (!hvcsd || hvcsd->port.count <= 0)
54023+ if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
54024 return 0;
54025
54026 return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
54027diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
54028index 4190199..06d5bfa 100644
54029--- a/drivers/tty/hvc/hvsi.c
54030+++ b/drivers/tty/hvc/hvsi.c
54031@@ -85,7 +85,7 @@ struct hvsi_struct {
54032 int n_outbuf;
54033 uint32_t vtermno;
54034 uint32_t virq;
54035- atomic_t seqno; /* HVSI packet sequence number */
54036+ atomic_unchecked_t seqno; /* HVSI packet sequence number */
54037 uint16_t mctrl;
54038 uint8_t state; /* HVSI protocol state */
54039 uint8_t flags;
54040@@ -295,7 +295,7 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
54041
54042 packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
54043 packet.hdr.len = sizeof(struct hvsi_query_response);
54044- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54045+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54046 packet.verb = VSV_SEND_VERSION_NUMBER;
54047 packet.u.version = HVSI_VERSION;
54048 packet.query_seqno = query_seqno+1;
54049@@ -555,7 +555,7 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
54050
54051 packet.hdr.type = VS_QUERY_PACKET_HEADER;
54052 packet.hdr.len = sizeof(struct hvsi_query);
54053- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54054+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54055 packet.verb = verb;
54056
54057 pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
54058@@ -597,7 +597,7 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
54059 int wrote;
54060
54061 packet.hdr.type = VS_CONTROL_PACKET_HEADER,
54062- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54063+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54064 packet.hdr.len = sizeof(struct hvsi_control);
54065 packet.verb = VSV_SET_MODEM_CTL;
54066 packet.mask = HVSI_TSDTR;
54067@@ -680,7 +680,7 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
54068 BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
54069
54070 packet.hdr.type = VS_DATA_PACKET_HEADER;
54071- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54072+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54073 packet.hdr.len = count + sizeof(struct hvsi_header);
54074 memcpy(&packet.data, buf, count);
54075
54076@@ -697,7 +697,7 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
54077 struct hvsi_control packet __ALIGNED__;
54078
54079 packet.hdr.type = VS_CONTROL_PACKET_HEADER;
54080- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54081+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54082 packet.hdr.len = 6;
54083 packet.verb = VSV_CLOSE_PROTOCOL;
54084
54085@@ -725,7 +725,7 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
54086
54087 tty_port_tty_set(&hp->port, tty);
54088 spin_lock_irqsave(&hp->lock, flags);
54089- hp->port.count++;
54090+ atomic_inc(&hp->port.count);
54091 atomic_set(&hp->seqno, 0);
54092 h_vio_signal(hp->vtermno, VIO_IRQ_ENABLE);
54093 spin_unlock_irqrestore(&hp->lock, flags);
54094@@ -782,7 +782,7 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
54095
54096 spin_lock_irqsave(&hp->lock, flags);
54097
54098- if (--hp->port.count == 0) {
54099+ if (atomic_dec_return(&hp->port.count) == 0) {
54100 tty_port_tty_set(&hp->port, NULL);
54101 hp->inbuf_end = hp->inbuf; /* discard remaining partial packets */
54102
54103@@ -815,9 +815,9 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
54104
54105 spin_lock_irqsave(&hp->lock, flags);
54106 }
54107- } else if (hp->port.count < 0)
54108+ } else if (atomic_read(&hp->port.count) < 0)
54109 printk(KERN_ERR "hvsi_close %lu: oops, count is %d\n",
54110- hp - hvsi_ports, hp->port.count);
54111+ hp - hvsi_ports, atomic_read(&hp->port.count));
54112
54113 spin_unlock_irqrestore(&hp->lock, flags);
54114 }
54115@@ -832,7 +832,7 @@ static void hvsi_hangup(struct tty_struct *tty)
54116 tty_port_tty_set(&hp->port, NULL);
54117
54118 spin_lock_irqsave(&hp->lock, flags);
54119- hp->port.count = 0;
54120+ atomic_set(&hp->port.count, 0);
54121 hp->n_outbuf = 0;
54122 spin_unlock_irqrestore(&hp->lock, flags);
54123 }
54124diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
54125index a270f04..7c77b5d 100644
54126--- a/drivers/tty/hvc/hvsi_lib.c
54127+++ b/drivers/tty/hvc/hvsi_lib.c
54128@@ -8,7 +8,7 @@
54129
54130 static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
54131 {
54132- packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
54133+ packet->seqno = cpu_to_be16(atomic_inc_return_unchecked(&pv->seqno));
54134
54135 /* Assumes that always succeeds, works in practice */
54136 return pv->put_chars(pv->termno, (char *)packet, packet->len);
54137@@ -20,7 +20,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
54138
54139 /* Reset state */
54140 pv->established = 0;
54141- atomic_set(&pv->seqno, 0);
54142+ atomic_set_unchecked(&pv->seqno, 0);
54143
54144 pr_devel("HVSI@%x: Handshaking started\n", pv->termno);
54145
54146diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
54147index 345cebb..d5a1e9e 100644
54148--- a/drivers/tty/ipwireless/tty.c
54149+++ b/drivers/tty/ipwireless/tty.c
54150@@ -28,6 +28,7 @@
54151 #include <linux/tty_driver.h>
54152 #include <linux/tty_flip.h>
54153 #include <linux/uaccess.h>
54154+#include <asm/local.h>
54155
54156 #include "tty.h"
54157 #include "network.h"
54158@@ -93,10 +94,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
54159 return -ENODEV;
54160
54161 mutex_lock(&tty->ipw_tty_mutex);
54162- if (tty->port.count == 0)
54163+ if (atomic_read(&tty->port.count) == 0)
54164 tty->tx_bytes_queued = 0;
54165
54166- tty->port.count++;
54167+ atomic_inc(&tty->port.count);
54168
54169 tty->port.tty = linux_tty;
54170 linux_tty->driver_data = tty;
54171@@ -112,9 +113,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
54172
54173 static void do_ipw_close(struct ipw_tty *tty)
54174 {
54175- tty->port.count--;
54176-
54177- if (tty->port.count == 0) {
54178+ if (atomic_dec_return(&tty->port.count) == 0) {
54179 struct tty_struct *linux_tty = tty->port.tty;
54180
54181 if (linux_tty != NULL) {
54182@@ -135,7 +134,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
54183 return;
54184
54185 mutex_lock(&tty->ipw_tty_mutex);
54186- if (tty->port.count == 0) {
54187+ if (atomic_read(&tty->port.count) == 0) {
54188 mutex_unlock(&tty->ipw_tty_mutex);
54189 return;
54190 }
54191@@ -158,7 +157,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
54192
54193 mutex_lock(&tty->ipw_tty_mutex);
54194
54195- if (!tty->port.count) {
54196+ if (!atomic_read(&tty->port.count)) {
54197 mutex_unlock(&tty->ipw_tty_mutex);
54198 return;
54199 }
54200@@ -197,7 +196,7 @@ static int ipw_write(struct tty_struct *linux_tty,
54201 return -ENODEV;
54202
54203 mutex_lock(&tty->ipw_tty_mutex);
54204- if (!tty->port.count) {
54205+ if (!atomic_read(&tty->port.count)) {
54206 mutex_unlock(&tty->ipw_tty_mutex);
54207 return -EINVAL;
54208 }
54209@@ -237,7 +236,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
54210 if (!tty)
54211 return -ENODEV;
54212
54213- if (!tty->port.count)
54214+ if (!atomic_read(&tty->port.count))
54215 return -EINVAL;
54216
54217 room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
54218@@ -279,7 +278,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
54219 if (!tty)
54220 return 0;
54221
54222- if (!tty->port.count)
54223+ if (!atomic_read(&tty->port.count))
54224 return 0;
54225
54226 return tty->tx_bytes_queued;
54227@@ -360,7 +359,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
54228 if (!tty)
54229 return -ENODEV;
54230
54231- if (!tty->port.count)
54232+ if (!atomic_read(&tty->port.count))
54233 return -EINVAL;
54234
54235 return get_control_lines(tty);
54236@@ -376,7 +375,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
54237 if (!tty)
54238 return -ENODEV;
54239
54240- if (!tty->port.count)
54241+ if (!atomic_read(&tty->port.count))
54242 return -EINVAL;
54243
54244 return set_control_lines(tty, set, clear);
54245@@ -390,7 +389,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
54246 if (!tty)
54247 return -ENODEV;
54248
54249- if (!tty->port.count)
54250+ if (!atomic_read(&tty->port.count))
54251 return -EINVAL;
54252
54253 /* FIXME: Exactly how is the tty object locked here .. */
54254@@ -546,7 +545,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
54255 * are gone */
54256 mutex_lock(&ttyj->ipw_tty_mutex);
54257 }
54258- while (ttyj->port.count)
54259+ while (atomic_read(&ttyj->port.count))
54260 do_ipw_close(ttyj);
54261 ipwireless_disassociate_network_ttys(network,
54262 ttyj->channel_idx);
54263diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
54264index 14c54e0..1efd4f2 100644
54265--- a/drivers/tty/moxa.c
54266+++ b/drivers/tty/moxa.c
54267@@ -1189,7 +1189,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
54268 }
54269
54270 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
54271- ch->port.count++;
54272+ atomic_inc(&ch->port.count);
54273 tty->driver_data = ch;
54274 tty_port_tty_set(&ch->port, tty);
54275 mutex_lock(&ch->port.mutex);
54276diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
54277index c434376..114ce13 100644
54278--- a/drivers/tty/n_gsm.c
54279+++ b/drivers/tty/n_gsm.c
54280@@ -1644,7 +1644,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
54281 spin_lock_init(&dlci->lock);
54282 mutex_init(&dlci->mutex);
54283 dlci->fifo = &dlci->_fifo;
54284- if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
54285+ if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
54286 kfree(dlci);
54287 return NULL;
54288 }
54289@@ -2958,7 +2958,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
54290 struct gsm_dlci *dlci = tty->driver_data;
54291 struct tty_port *port = &dlci->port;
54292
54293- port->count++;
54294+ atomic_inc(&port->count);
54295 tty_port_tty_set(port, tty);
54296
54297 dlci->modem_rx = 0;
54298diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
54299index cf6e0f2..4283167 100644
54300--- a/drivers/tty/n_tty.c
54301+++ b/drivers/tty/n_tty.c
54302@@ -116,7 +116,7 @@ struct n_tty_data {
54303 int minimum_to_wake;
54304
54305 /* consumer-published */
54306- size_t read_tail;
54307+ size_t read_tail __intentional_overflow(-1);
54308 size_t line_start;
54309
54310 /* protected by output lock */
54311@@ -2547,6 +2547,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
54312 {
54313 *ops = tty_ldisc_N_TTY;
54314 ops->owner = NULL;
54315- ops->refcount = ops->flags = 0;
54316+ atomic_set(&ops->refcount, 0);
54317+ ops->flags = 0;
54318 }
54319 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
54320diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
54321index e72ee62..d977ad9 100644
54322--- a/drivers/tty/pty.c
54323+++ b/drivers/tty/pty.c
54324@@ -848,8 +848,10 @@ static void __init unix98_pty_init(void)
54325 panic("Couldn't register Unix98 pts driver");
54326
54327 /* Now create the /dev/ptmx special device */
54328+ pax_open_kernel();
54329 tty_default_fops(&ptmx_fops);
54330- ptmx_fops.open = ptmx_open;
54331+ *(void **)&ptmx_fops.open = ptmx_open;
54332+ pax_close_kernel();
54333
54334 cdev_init(&ptmx_cdev, &ptmx_fops);
54335 if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
54336diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
54337index c8dd8dc..dca6cfd 100644
54338--- a/drivers/tty/rocket.c
54339+++ b/drivers/tty/rocket.c
54340@@ -914,7 +914,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
54341 tty->driver_data = info;
54342 tty_port_tty_set(port, tty);
54343
54344- if (port->count++ == 0) {
54345+ if (atomic_inc_return(&port->count) == 1) {
54346 atomic_inc(&rp_num_ports_open);
54347
54348 #ifdef ROCKET_DEBUG_OPEN
54349@@ -923,7 +923,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
54350 #endif
54351 }
54352 #ifdef ROCKET_DEBUG_OPEN
54353- printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
54354+ printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
54355 #endif
54356
54357 /*
54358@@ -1515,7 +1515,7 @@ static void rp_hangup(struct tty_struct *tty)
54359 spin_unlock_irqrestore(&info->port.lock, flags);
54360 return;
54361 }
54362- if (info->port.count)
54363+ if (atomic_read(&info->port.count))
54364 atomic_dec(&rp_num_ports_open);
54365 clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
54366 spin_unlock_irqrestore(&info->port.lock, flags);
54367diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
54368index aa28209..e08fb85 100644
54369--- a/drivers/tty/serial/ioc4_serial.c
54370+++ b/drivers/tty/serial/ioc4_serial.c
54371@@ -437,7 +437,7 @@ struct ioc4_soft {
54372 } is_intr_info[MAX_IOC4_INTR_ENTS];
54373
54374 /* Number of entries active in the above array */
54375- atomic_t is_num_intrs;
54376+ atomic_unchecked_t is_num_intrs;
54377 } is_intr_type[IOC4_NUM_INTR_TYPES];
54378
54379 /* is_ir_lock must be held while
54380@@ -974,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
54381 BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
54382 || (type == IOC4_OTHER_INTR_TYPE)));
54383
54384- i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
54385+ i = atomic_inc_return_unchecked(&soft-> is_intr_type[type].is_num_intrs) - 1;
54386 BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
54387
54388 /* Save off the lower level interrupt handler */
54389@@ -1001,7 +1001,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
54390
54391 soft = arg;
54392 for (intr_type = 0; intr_type < IOC4_NUM_INTR_TYPES; intr_type++) {
54393- num_intrs = (int)atomic_read(
54394+ num_intrs = (int)atomic_read_unchecked(
54395 &soft->is_intr_type[intr_type].is_num_intrs);
54396
54397 this_mir = this_ir = pending_intrs(soft, intr_type);
54398diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
54399index 129dc5b..1da5bb8 100644
54400--- a/drivers/tty/serial/kgdb_nmi.c
54401+++ b/drivers/tty/serial/kgdb_nmi.c
54402@@ -53,7 +53,9 @@ static int kgdb_nmi_console_setup(struct console *co, char *options)
54403 * I/O utilities that messages sent to the console will automatically
54404 * be displayed on the dbg_io.
54405 */
54406- dbg_io_ops->is_console = true;
54407+ pax_open_kernel();
54408+ *(int *)&dbg_io_ops->is_console = true;
54409+ pax_close_kernel();
54410
54411 return 0;
54412 }
54413diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
54414index a260cde..6b2b5ce 100644
54415--- a/drivers/tty/serial/kgdboc.c
54416+++ b/drivers/tty/serial/kgdboc.c
54417@@ -24,8 +24,9 @@
54418 #define MAX_CONFIG_LEN 40
54419
54420 static struct kgdb_io kgdboc_io_ops;
54421+static struct kgdb_io kgdboc_io_ops_console;
54422
54423-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
54424+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
54425 static int configured = -1;
54426
54427 static char config[MAX_CONFIG_LEN];
54428@@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
54429 kgdboc_unregister_kbd();
54430 if (configured == 1)
54431 kgdb_unregister_io_module(&kgdboc_io_ops);
54432+ else if (configured == 2)
54433+ kgdb_unregister_io_module(&kgdboc_io_ops_console);
54434 }
54435
54436 static int configure_kgdboc(void)
54437@@ -160,13 +163,13 @@ static int configure_kgdboc(void)
54438 int err;
54439 char *cptr = config;
54440 struct console *cons;
54441+ int is_console = 0;
54442
54443 err = kgdboc_option_setup(config);
54444 if (err || !strlen(config) || isspace(config[0]))
54445 goto noconfig;
54446
54447 err = -ENODEV;
54448- kgdboc_io_ops.is_console = 0;
54449 kgdb_tty_driver = NULL;
54450
54451 kgdboc_use_kms = 0;
54452@@ -187,7 +190,7 @@ static int configure_kgdboc(void)
54453 int idx;
54454 if (cons->device && cons->device(cons, &idx) == p &&
54455 idx == tty_line) {
54456- kgdboc_io_ops.is_console = 1;
54457+ is_console = 1;
54458 break;
54459 }
54460 cons = cons->next;
54461@@ -197,7 +200,13 @@ static int configure_kgdboc(void)
54462 kgdb_tty_line = tty_line;
54463
54464 do_register:
54465- err = kgdb_register_io_module(&kgdboc_io_ops);
54466+ if (is_console) {
54467+ err = kgdb_register_io_module(&kgdboc_io_ops_console);
54468+ configured = 2;
54469+ } else {
54470+ err = kgdb_register_io_module(&kgdboc_io_ops);
54471+ configured = 1;
54472+ }
54473 if (err)
54474 goto noconfig;
54475
54476@@ -205,8 +214,6 @@ do_register:
54477 if (err)
54478 goto nmi_con_failed;
54479
54480- configured = 1;
54481-
54482 return 0;
54483
54484 nmi_con_failed:
54485@@ -223,7 +230,7 @@ noconfig:
54486 static int __init init_kgdboc(void)
54487 {
54488 /* Already configured? */
54489- if (configured == 1)
54490+ if (configured >= 1)
54491 return 0;
54492
54493 return configure_kgdboc();
54494@@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
54495 if (config[len - 1] == '\n')
54496 config[len - 1] = '\0';
54497
54498- if (configured == 1)
54499+ if (configured >= 1)
54500 cleanup_kgdboc();
54501
54502 /* Go and configure with the new params. */
54503@@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
54504 .post_exception = kgdboc_post_exp_handler,
54505 };
54506
54507+static struct kgdb_io kgdboc_io_ops_console = {
54508+ .name = "kgdboc",
54509+ .read_char = kgdboc_get_char,
54510+ .write_char = kgdboc_put_char,
54511+ .pre_exception = kgdboc_pre_exp_handler,
54512+ .post_exception = kgdboc_post_exp_handler,
54513+ .is_console = 1
54514+};
54515+
54516 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
54517 /* This is only available if kgdboc is a built in for early debugging */
54518 static int __init kgdboc_early_init(char *opt)
54519diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
54520index b73889c..9f74f0a 100644
54521--- a/drivers/tty/serial/msm_serial.c
54522+++ b/drivers/tty/serial/msm_serial.c
54523@@ -1012,7 +1012,7 @@ static struct uart_driver msm_uart_driver = {
54524 .cons = MSM_CONSOLE,
54525 };
54526
54527-static atomic_t msm_uart_next_id = ATOMIC_INIT(0);
54528+static atomic_unchecked_t msm_uart_next_id = ATOMIC_INIT(0);
54529
54530 static const struct of_device_id msm_uartdm_table[] = {
54531 { .compatible = "qcom,msm-uartdm-v1.1", .data = (void *)UARTDM_1P1 },
54532@@ -1036,7 +1036,7 @@ static int msm_serial_probe(struct platform_device *pdev)
54533 line = pdev->id;
54534
54535 if (line < 0)
54536- line = atomic_inc_return(&msm_uart_next_id) - 1;
54537+ line = atomic_inc_return_unchecked(&msm_uart_next_id) - 1;
54538
54539 if (unlikely(line < 0 || line >= UART_NR))
54540 return -ENXIO;
54541diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
54542index cf08876..711e0bf 100644
54543--- a/drivers/tty/serial/samsung.c
54544+++ b/drivers/tty/serial/samsung.c
54545@@ -987,11 +987,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
54546 ourport->tx_in_progress = 0;
54547 }
54548
54549+static int s3c64xx_serial_startup(struct uart_port *port);
54550 static int s3c24xx_serial_startup(struct uart_port *port)
54551 {
54552 struct s3c24xx_uart_port *ourport = to_ourport(port);
54553 int ret;
54554
54555+ /* Startup sequence is different for s3c64xx and higher SoC's */
54556+ if (s3c24xx_serial_has_interrupt_mask(port))
54557+ return s3c64xx_serial_startup(port);
54558+
54559 dbg("s3c24xx_serial_startup: port=%p (%08llx,%p)\n",
54560 port, (unsigned long long)port->mapbase, port->membase);
54561
54562@@ -1697,10 +1702,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
54563 /* setup info for port */
54564 port->dev = &platdev->dev;
54565
54566- /* Startup sequence is different for s3c64xx and higher SoC's */
54567- if (s3c24xx_serial_has_interrupt_mask(port))
54568- s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
54569-
54570 port->uartclk = 1;
54571
54572 if (cfg->uart_flags & UPF_CONS_FLOW) {
54573diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
54574index 6a1055a..5ca9ad9 100644
54575--- a/drivers/tty/serial/serial_core.c
54576+++ b/drivers/tty/serial/serial_core.c
54577@@ -1377,7 +1377,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
54578 state = drv->state + tty->index;
54579 port = &state->port;
54580 spin_lock_irq(&port->lock);
54581- --port->count;
54582+ atomic_dec(&port->count);
54583 spin_unlock_irq(&port->lock);
54584 return;
54585 }
54586@@ -1387,7 +1387,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
54587
54588 pr_debug("uart_close(%d) called\n", uport ? uport->line : -1);
54589
54590- if (!port->count || tty_port_close_start(port, tty, filp) == 0)
54591+ if (!atomic_read(&port->count) || tty_port_close_start(port, tty, filp) == 0)
54592 return;
54593
54594 /*
54595@@ -1511,7 +1511,7 @@ static void uart_hangup(struct tty_struct *tty)
54596 uart_flush_buffer(tty);
54597 uart_shutdown(tty, state);
54598 spin_lock_irqsave(&port->lock, flags);
54599- port->count = 0;
54600+ atomic_set(&port->count, 0);
54601 clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
54602 spin_unlock_irqrestore(&port->lock, flags);
54603 tty_port_tty_set(port, NULL);
54604@@ -1598,7 +1598,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
54605 pr_debug("uart_open(%d) called\n", line);
54606
54607 spin_lock_irq(&port->lock);
54608- ++port->count;
54609+ atomic_inc(&port->count);
54610 spin_unlock_irq(&port->lock);
54611
54612 /*
54613diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
54614index b799170..87dafd5 100644
54615--- a/drivers/tty/synclink.c
54616+++ b/drivers/tty/synclink.c
54617@@ -3090,7 +3090,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
54618
54619 if (debug_level >= DEBUG_LEVEL_INFO)
54620 printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
54621- __FILE__,__LINE__, info->device_name, info->port.count);
54622+ __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
54623
54624 if (tty_port_close_start(&info->port, tty, filp) == 0)
54625 goto cleanup;
54626@@ -3108,7 +3108,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
54627 cleanup:
54628 if (debug_level >= DEBUG_LEVEL_INFO)
54629 printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
54630- tty->driver->name, info->port.count);
54631+ tty->driver->name, atomic_read(&info->port.count));
54632
54633 } /* end of mgsl_close() */
54634
54635@@ -3207,8 +3207,8 @@ static void mgsl_hangup(struct tty_struct *tty)
54636
54637 mgsl_flush_buffer(tty);
54638 shutdown(info);
54639-
54640- info->port.count = 0;
54641+
54642+ atomic_set(&info->port.count, 0);
54643 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54644 info->port.tty = NULL;
54645
54646@@ -3296,10 +3296,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54647
54648 if (debug_level >= DEBUG_LEVEL_INFO)
54649 printk("%s(%d):block_til_ready before block on %s count=%d\n",
54650- __FILE__,__LINE__, tty->driver->name, port->count );
54651+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54652
54653 spin_lock_irqsave(&info->irq_spinlock, flags);
54654- port->count--;
54655+ atomic_dec(&port->count);
54656 spin_unlock_irqrestore(&info->irq_spinlock, flags);
54657 port->blocked_open++;
54658
54659@@ -3327,7 +3327,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54660
54661 if (debug_level >= DEBUG_LEVEL_INFO)
54662 printk("%s(%d):block_til_ready blocking on %s count=%d\n",
54663- __FILE__,__LINE__, tty->driver->name, port->count );
54664+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54665
54666 tty_unlock(tty);
54667 schedule();
54668@@ -3339,12 +3339,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54669
54670 /* FIXME: Racy on hangup during close wait */
54671 if (!tty_hung_up_p(filp))
54672- port->count++;
54673+ atomic_inc(&port->count);
54674 port->blocked_open--;
54675
54676 if (debug_level >= DEBUG_LEVEL_INFO)
54677 printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
54678- __FILE__,__LINE__, tty->driver->name, port->count );
54679+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54680
54681 if (!retval)
54682 port->flags |= ASYNC_NORMAL_ACTIVE;
54683@@ -3396,7 +3396,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
54684
54685 if (debug_level >= DEBUG_LEVEL_INFO)
54686 printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
54687- __FILE__,__LINE__,tty->driver->name, info->port.count);
54688+ __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
54689
54690 /* If port is closing, signal caller to try again */
54691 if (info->port.flags & ASYNC_CLOSING){
54692@@ -3415,10 +3415,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
54693 spin_unlock_irqrestore(&info->netlock, flags);
54694 goto cleanup;
54695 }
54696- info->port.count++;
54697+ atomic_inc(&info->port.count);
54698 spin_unlock_irqrestore(&info->netlock, flags);
54699
54700- if (info->port.count == 1) {
54701+ if (atomic_read(&info->port.count) == 1) {
54702 /* 1st open on this device, init hardware */
54703 retval = startup(info);
54704 if (retval < 0)
54705@@ -3442,8 +3442,8 @@ cleanup:
54706 if (retval) {
54707 if (tty->count == 1)
54708 info->port.tty = NULL; /* tty layer will release tty struct */
54709- if(info->port.count)
54710- info->port.count--;
54711+ if (atomic_read(&info->port.count))
54712+ atomic_dec(&info->port.count);
54713 }
54714
54715 return retval;
54716@@ -7661,7 +7661,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54717 unsigned short new_crctype;
54718
54719 /* return error if TTY interface open */
54720- if (info->port.count)
54721+ if (atomic_read(&info->port.count))
54722 return -EBUSY;
54723
54724 switch (encoding)
54725@@ -7756,7 +7756,7 @@ static int hdlcdev_open(struct net_device *dev)
54726
54727 /* arbitrate between network and tty opens */
54728 spin_lock_irqsave(&info->netlock, flags);
54729- if (info->port.count != 0 || info->netcount != 0) {
54730+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54731 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
54732 spin_unlock_irqrestore(&info->netlock, flags);
54733 return -EBUSY;
54734@@ -7842,7 +7842,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
54735 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
54736
54737 /* return error if TTY interface open */
54738- if (info->port.count)
54739+ if (atomic_read(&info->port.count))
54740 return -EBUSY;
54741
54742 if (cmd != SIOCWANDEV)
54743diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
54744index 0e8c39b..e0cb171 100644
54745--- a/drivers/tty/synclink_gt.c
54746+++ b/drivers/tty/synclink_gt.c
54747@@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
54748 tty->driver_data = info;
54749 info->port.tty = tty;
54750
54751- DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
54752+ DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
54753
54754 /* If port is closing, signal caller to try again */
54755 if (info->port.flags & ASYNC_CLOSING){
54756@@ -691,10 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
54757 mutex_unlock(&info->port.mutex);
54758 goto cleanup;
54759 }
54760- info->port.count++;
54761+ atomic_inc(&info->port.count);
54762 spin_unlock_irqrestore(&info->netlock, flags);
54763
54764- if (info->port.count == 1) {
54765+ if (atomic_read(&info->port.count) == 1) {
54766 /* 1st open on this device, init hardware */
54767 retval = startup(info);
54768 if (retval < 0) {
54769@@ -715,8 +715,8 @@ cleanup:
54770 if (retval) {
54771 if (tty->count == 1)
54772 info->port.tty = NULL; /* tty layer will release tty struct */
54773- if(info->port.count)
54774- info->port.count--;
54775+ if(atomic_read(&info->port.count))
54776+ atomic_dec(&info->port.count);
54777 }
54778
54779 DBGINFO(("%s open rc=%d\n", info->device_name, retval));
54780@@ -729,7 +729,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54781
54782 if (sanity_check(info, tty->name, "close"))
54783 return;
54784- DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
54785+ DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
54786
54787 if (tty_port_close_start(&info->port, tty, filp) == 0)
54788 goto cleanup;
54789@@ -746,7 +746,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54790 tty_port_close_end(&info->port, tty);
54791 info->port.tty = NULL;
54792 cleanup:
54793- DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
54794+ DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
54795 }
54796
54797 static void hangup(struct tty_struct *tty)
54798@@ -764,7 +764,7 @@ static void hangup(struct tty_struct *tty)
54799 shutdown(info);
54800
54801 spin_lock_irqsave(&info->port.lock, flags);
54802- info->port.count = 0;
54803+ atomic_set(&info->port.count, 0);
54804 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54805 info->port.tty = NULL;
54806 spin_unlock_irqrestore(&info->port.lock, flags);
54807@@ -1449,7 +1449,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54808 unsigned short new_crctype;
54809
54810 /* return error if TTY interface open */
54811- if (info->port.count)
54812+ if (atomic_read(&info->port.count))
54813 return -EBUSY;
54814
54815 DBGINFO(("%s hdlcdev_attach\n", info->device_name));
54816@@ -1544,7 +1544,7 @@ static int hdlcdev_open(struct net_device *dev)
54817
54818 /* arbitrate between network and tty opens */
54819 spin_lock_irqsave(&info->netlock, flags);
54820- if (info->port.count != 0 || info->netcount != 0) {
54821+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54822 DBGINFO(("%s hdlc_open busy\n", dev->name));
54823 spin_unlock_irqrestore(&info->netlock, flags);
54824 return -EBUSY;
54825@@ -1629,7 +1629,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
54826 DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
54827
54828 /* return error if TTY interface open */
54829- if (info->port.count)
54830+ if (atomic_read(&info->port.count))
54831 return -EBUSY;
54832
54833 if (cmd != SIOCWANDEV)
54834@@ -2413,7 +2413,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
54835 if (port == NULL)
54836 continue;
54837 spin_lock(&port->lock);
54838- if ((port->port.count || port->netcount) &&
54839+ if ((atomic_read(&port->port.count) || port->netcount) &&
54840 port->pending_bh && !port->bh_running &&
54841 !port->bh_requested) {
54842 DBGISR(("%s bh queued\n", port->device_name));
54843@@ -3299,7 +3299,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54844 add_wait_queue(&port->open_wait, &wait);
54845
54846 spin_lock_irqsave(&info->lock, flags);
54847- port->count--;
54848+ atomic_dec(&port->count);
54849 spin_unlock_irqrestore(&info->lock, flags);
54850 port->blocked_open++;
54851
54852@@ -3335,7 +3335,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54853 remove_wait_queue(&port->open_wait, &wait);
54854
54855 if (!tty_hung_up_p(filp))
54856- port->count++;
54857+ atomic_inc(&port->count);
54858 port->blocked_open--;
54859
54860 if (!retval)
54861diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
54862index c3f9091..abe4601 100644
54863--- a/drivers/tty/synclinkmp.c
54864+++ b/drivers/tty/synclinkmp.c
54865@@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
54866
54867 if (debug_level >= DEBUG_LEVEL_INFO)
54868 printk("%s(%d):%s open(), old ref count = %d\n",
54869- __FILE__,__LINE__,tty->driver->name, info->port.count);
54870+ __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
54871
54872 /* If port is closing, signal caller to try again */
54873 if (info->port.flags & ASYNC_CLOSING){
54874@@ -769,10 +769,10 @@ static int open(struct tty_struct *tty, struct file *filp)
54875 spin_unlock_irqrestore(&info->netlock, flags);
54876 goto cleanup;
54877 }
54878- info->port.count++;
54879+ atomic_inc(&info->port.count);
54880 spin_unlock_irqrestore(&info->netlock, flags);
54881
54882- if (info->port.count == 1) {
54883+ if (atomic_read(&info->port.count) == 1) {
54884 /* 1st open on this device, init hardware */
54885 retval = startup(info);
54886 if (retval < 0)
54887@@ -796,8 +796,8 @@ cleanup:
54888 if (retval) {
54889 if (tty->count == 1)
54890 info->port.tty = NULL; /* tty layer will release tty struct */
54891- if(info->port.count)
54892- info->port.count--;
54893+ if(atomic_read(&info->port.count))
54894+ atomic_dec(&info->port.count);
54895 }
54896
54897 return retval;
54898@@ -815,7 +815,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54899
54900 if (debug_level >= DEBUG_LEVEL_INFO)
54901 printk("%s(%d):%s close() entry, count=%d\n",
54902- __FILE__,__LINE__, info->device_name, info->port.count);
54903+ __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
54904
54905 if (tty_port_close_start(&info->port, tty, filp) == 0)
54906 goto cleanup;
54907@@ -834,7 +834,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54908 cleanup:
54909 if (debug_level >= DEBUG_LEVEL_INFO)
54910 printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
54911- tty->driver->name, info->port.count);
54912+ tty->driver->name, atomic_read(&info->port.count));
54913 }
54914
54915 /* Called by tty_hangup() when a hangup is signaled.
54916@@ -857,7 +857,7 @@ static void hangup(struct tty_struct *tty)
54917 shutdown(info);
54918
54919 spin_lock_irqsave(&info->port.lock, flags);
54920- info->port.count = 0;
54921+ atomic_set(&info->port.count, 0);
54922 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54923 info->port.tty = NULL;
54924 spin_unlock_irqrestore(&info->port.lock, flags);
54925@@ -1565,7 +1565,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54926 unsigned short new_crctype;
54927
54928 /* return error if TTY interface open */
54929- if (info->port.count)
54930+ if (atomic_read(&info->port.count))
54931 return -EBUSY;
54932
54933 switch (encoding)
54934@@ -1660,7 +1660,7 @@ static int hdlcdev_open(struct net_device *dev)
54935
54936 /* arbitrate between network and tty opens */
54937 spin_lock_irqsave(&info->netlock, flags);
54938- if (info->port.count != 0 || info->netcount != 0) {
54939+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54940 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
54941 spin_unlock_irqrestore(&info->netlock, flags);
54942 return -EBUSY;
54943@@ -1746,7 +1746,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
54944 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
54945
54946 /* return error if TTY interface open */
54947- if (info->port.count)
54948+ if (atomic_read(&info->port.count))
54949 return -EBUSY;
54950
54951 if (cmd != SIOCWANDEV)
54952@@ -2621,7 +2621,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
54953 * do not request bottom half processing if the
54954 * device is not open in a normal mode.
54955 */
54956- if ( port && (port->port.count || port->netcount) &&
54957+ if ( port && (atomic_read(&port->port.count) || port->netcount) &&
54958 port->pending_bh && !port->bh_running &&
54959 !port->bh_requested ) {
54960 if ( debug_level >= DEBUG_LEVEL_ISR )
54961@@ -3318,10 +3318,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54962
54963 if (debug_level >= DEBUG_LEVEL_INFO)
54964 printk("%s(%d):%s block_til_ready() before block, count=%d\n",
54965- __FILE__,__LINE__, tty->driver->name, port->count );
54966+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54967
54968 spin_lock_irqsave(&info->lock, flags);
54969- port->count--;
54970+ atomic_dec(&port->count);
54971 spin_unlock_irqrestore(&info->lock, flags);
54972 port->blocked_open++;
54973
54974@@ -3349,7 +3349,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54975
54976 if (debug_level >= DEBUG_LEVEL_INFO)
54977 printk("%s(%d):%s block_til_ready() count=%d\n",
54978- __FILE__,__LINE__, tty->driver->name, port->count );
54979+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54980
54981 tty_unlock(tty);
54982 schedule();
54983@@ -3359,12 +3359,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54984 set_current_state(TASK_RUNNING);
54985 remove_wait_queue(&port->open_wait, &wait);
54986 if (!tty_hung_up_p(filp))
54987- port->count++;
54988+ atomic_inc(&port->count);
54989 port->blocked_open--;
54990
54991 if (debug_level >= DEBUG_LEVEL_INFO)
54992 printk("%s(%d):%s block_til_ready() after, count=%d\n",
54993- __FILE__,__LINE__, tty->driver->name, port->count );
54994+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54995
54996 if (!retval)
54997 port->flags |= ASYNC_NORMAL_ACTIVE;
54998diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
54999index 259a4d5..9b0c9e7 100644
55000--- a/drivers/tty/sysrq.c
55001+++ b/drivers/tty/sysrq.c
55002@@ -1085,7 +1085,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
55003 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
55004 size_t count, loff_t *ppos)
55005 {
55006- if (count) {
55007+ if (count && capable(CAP_SYS_ADMIN)) {
55008 char c;
55009
55010 if (get_user(c, buf))
55011diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
55012index 2bb4dfc..a7f6e86 100644
55013--- a/drivers/tty/tty_io.c
55014+++ b/drivers/tty/tty_io.c
55015@@ -3503,7 +3503,7 @@ EXPORT_SYMBOL(tty_devnum);
55016
55017 void tty_default_fops(struct file_operations *fops)
55018 {
55019- *fops = tty_fops;
55020+ memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
55021 }
55022
55023 /*
55024diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
55025index 3737f55..7cef448 100644
55026--- a/drivers/tty/tty_ldisc.c
55027+++ b/drivers/tty/tty_ldisc.c
55028@@ -71,7 +71,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
55029 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55030 tty_ldiscs[disc] = new_ldisc;
55031 new_ldisc->num = disc;
55032- new_ldisc->refcount = 0;
55033+ atomic_set(&new_ldisc->refcount, 0);
55034 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
55035
55036 return ret;
55037@@ -99,7 +99,7 @@ int tty_unregister_ldisc(int disc)
55038 return -EINVAL;
55039
55040 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55041- if (tty_ldiscs[disc]->refcount)
55042+ if (atomic_read(&tty_ldiscs[disc]->refcount))
55043 ret = -EBUSY;
55044 else
55045 tty_ldiscs[disc] = NULL;
55046@@ -120,7 +120,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
55047 if (ldops) {
55048 ret = ERR_PTR(-EAGAIN);
55049 if (try_module_get(ldops->owner)) {
55050- ldops->refcount++;
55051+ atomic_inc(&ldops->refcount);
55052 ret = ldops;
55053 }
55054 }
55055@@ -133,7 +133,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
55056 unsigned long flags;
55057
55058 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55059- ldops->refcount--;
55060+ atomic_dec(&ldops->refcount);
55061 module_put(ldops->owner);
55062 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
55063 }
55064diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
55065index 40b31835..94d92ae 100644
55066--- a/drivers/tty/tty_port.c
55067+++ b/drivers/tty/tty_port.c
55068@@ -236,7 +236,7 @@ void tty_port_hangup(struct tty_port *port)
55069 unsigned long flags;
55070
55071 spin_lock_irqsave(&port->lock, flags);
55072- port->count = 0;
55073+ atomic_set(&port->count, 0);
55074 port->flags &= ~ASYNC_NORMAL_ACTIVE;
55075 tty = port->tty;
55076 if (tty)
55077@@ -398,7 +398,7 @@ int tty_port_block_til_ready(struct tty_port *port,
55078
55079 /* The port lock protects the port counts */
55080 spin_lock_irqsave(&port->lock, flags);
55081- port->count--;
55082+ atomic_dec(&port->count);
55083 port->blocked_open++;
55084 spin_unlock_irqrestore(&port->lock, flags);
55085
55086@@ -440,7 +440,7 @@ int tty_port_block_til_ready(struct tty_port *port,
55087 we must not mess that up further */
55088 spin_lock_irqsave(&port->lock, flags);
55089 if (!tty_hung_up_p(filp))
55090- port->count++;
55091+ atomic_inc(&port->count);
55092 port->blocked_open--;
55093 if (retval == 0)
55094 port->flags |= ASYNC_NORMAL_ACTIVE;
55095@@ -476,19 +476,19 @@ int tty_port_close_start(struct tty_port *port,
55096 return 0;
55097
55098 spin_lock_irqsave(&port->lock, flags);
55099- if (tty->count == 1 && port->count != 1) {
55100+ if (tty->count == 1 && atomic_read(&port->count) != 1) {
55101 printk(KERN_WARNING
55102 "tty_port_close_start: tty->count = 1 port count = %d.\n",
55103- port->count);
55104- port->count = 1;
55105+ atomic_read(&port->count));
55106+ atomic_set(&port->count, 1);
55107 }
55108- if (--port->count < 0) {
55109+ if (atomic_dec_return(&port->count) < 0) {
55110 printk(KERN_WARNING "tty_port_close_start: count = %d\n",
55111- port->count);
55112- port->count = 0;
55113+ atomic_read(&port->count));
55114+ atomic_set(&port->count, 0);
55115 }
55116
55117- if (port->count) {
55118+ if (atomic_read(&port->count)) {
55119 spin_unlock_irqrestore(&port->lock, flags);
55120 return 0;
55121 }
55122@@ -590,7 +590,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
55123 struct file *filp)
55124 {
55125 spin_lock_irq(&port->lock);
55126- ++port->count;
55127+ atomic_inc(&port->count);
55128 spin_unlock_irq(&port->lock);
55129 tty_port_tty_set(port, tty);
55130
55131diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
55132index 8a89f6e..50b32af 100644
55133--- a/drivers/tty/vt/keyboard.c
55134+++ b/drivers/tty/vt/keyboard.c
55135@@ -641,6 +641,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
55136 kbd->kbdmode == VC_OFF) &&
55137 value != KVAL(K_SAK))
55138 return; /* SAK is allowed even in raw mode */
55139+
55140+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
55141+ {
55142+ void *func = fn_handler[value];
55143+ if (func == fn_show_state || func == fn_show_ptregs ||
55144+ func == fn_show_mem)
55145+ return;
55146+ }
55147+#endif
55148+
55149 fn_handler[value](vc);
55150 }
55151
55152@@ -1776,9 +1786,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
55153 if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
55154 return -EFAULT;
55155
55156- if (!capable(CAP_SYS_TTY_CONFIG))
55157- perm = 0;
55158-
55159 switch (cmd) {
55160 case KDGKBENT:
55161 /* Ensure another thread doesn't free it under us */
55162@@ -1793,6 +1800,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
55163 spin_unlock_irqrestore(&kbd_event_lock, flags);
55164 return put_user(val, &user_kbe->kb_value);
55165 case KDSKBENT:
55166+ if (!capable(CAP_SYS_TTY_CONFIG))
55167+ perm = 0;
55168+
55169 if (!perm)
55170 return -EPERM;
55171 if (!i && v == K_NOSUCHMAP) {
55172@@ -1883,9 +1893,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
55173 int i, j, k;
55174 int ret;
55175
55176- if (!capable(CAP_SYS_TTY_CONFIG))
55177- perm = 0;
55178-
55179 kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
55180 if (!kbs) {
55181 ret = -ENOMEM;
55182@@ -1919,6 +1926,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
55183 kfree(kbs);
55184 return ((p && *p) ? -EOVERFLOW : 0);
55185 case KDSKBSENT:
55186+ if (!capable(CAP_SYS_TTY_CONFIG))
55187+ perm = 0;
55188+
55189 if (!perm) {
55190 ret = -EPERM;
55191 goto reterr;
55192diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
55193index 6276f13..84f2449 100644
55194--- a/drivers/uio/uio.c
55195+++ b/drivers/uio/uio.c
55196@@ -25,6 +25,7 @@
55197 #include <linux/kobject.h>
55198 #include <linux/cdev.h>
55199 #include <linux/uio_driver.h>
55200+#include <asm/local.h>
55201
55202 #define UIO_MAX_DEVICES (1U << MINORBITS)
55203
55204@@ -231,7 +232,7 @@ static ssize_t event_show(struct device *dev,
55205 struct device_attribute *attr, char *buf)
55206 {
55207 struct uio_device *idev = dev_get_drvdata(dev);
55208- return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
55209+ return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
55210 }
55211 static DEVICE_ATTR_RO(event);
55212
55213@@ -393,7 +394,7 @@ void uio_event_notify(struct uio_info *info)
55214 {
55215 struct uio_device *idev = info->uio_dev;
55216
55217- atomic_inc(&idev->event);
55218+ atomic_inc_unchecked(&idev->event);
55219 wake_up_interruptible(&idev->wait);
55220 kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
55221 }
55222@@ -446,7 +447,7 @@ static int uio_open(struct inode *inode, struct file *filep)
55223 }
55224
55225 listener->dev = idev;
55226- listener->event_count = atomic_read(&idev->event);
55227+ listener->event_count = atomic_read_unchecked(&idev->event);
55228 filep->private_data = listener;
55229
55230 if (idev->info->open) {
55231@@ -497,7 +498,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
55232 return -EIO;
55233
55234 poll_wait(filep, &idev->wait, wait);
55235- if (listener->event_count != atomic_read(&idev->event))
55236+ if (listener->event_count != atomic_read_unchecked(&idev->event))
55237 return POLLIN | POLLRDNORM;
55238 return 0;
55239 }
55240@@ -522,7 +523,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
55241 do {
55242 set_current_state(TASK_INTERRUPTIBLE);
55243
55244- event_count = atomic_read(&idev->event);
55245+ event_count = atomic_read_unchecked(&idev->event);
55246 if (event_count != listener->event_count) {
55247 if (copy_to_user(buf, &event_count, count))
55248 retval = -EFAULT;
55249@@ -579,9 +580,13 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
55250 static int uio_find_mem_index(struct vm_area_struct *vma)
55251 {
55252 struct uio_device *idev = vma->vm_private_data;
55253+ unsigned long size;
55254
55255 if (vma->vm_pgoff < MAX_UIO_MAPS) {
55256- if (idev->info->mem[vma->vm_pgoff].size == 0)
55257+ size = idev->info->mem[vma->vm_pgoff].size;
55258+ if (size == 0)
55259+ return -1;
55260+ if (vma->vm_end - vma->vm_start > size)
55261 return -1;
55262 return (int)vma->vm_pgoff;
55263 }
55264@@ -813,7 +818,7 @@ int __uio_register_device(struct module *owner,
55265 idev->owner = owner;
55266 idev->info = info;
55267 init_waitqueue_head(&idev->wait);
55268- atomic_set(&idev->event, 0);
55269+ atomic_set_unchecked(&idev->event, 0);
55270
55271 ret = uio_get_minor(idev);
55272 if (ret)
55273diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
55274index 813d4d3..a71934f 100644
55275--- a/drivers/usb/atm/cxacru.c
55276+++ b/drivers/usb/atm/cxacru.c
55277@@ -472,7 +472,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
55278 ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
55279 if (ret < 2)
55280 return -EINVAL;
55281- if (index < 0 || index > 0x7f)
55282+ if (index > 0x7f)
55283 return -EINVAL;
55284 pos += tmp;
55285
55286diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
55287index dada014..1d0d517 100644
55288--- a/drivers/usb/atm/usbatm.c
55289+++ b/drivers/usb/atm/usbatm.c
55290@@ -331,7 +331,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55291 if (printk_ratelimit())
55292 atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
55293 __func__, vpi, vci);
55294- atomic_inc(&vcc->stats->rx_err);
55295+ atomic_inc_unchecked(&vcc->stats->rx_err);
55296 return;
55297 }
55298
55299@@ -358,7 +358,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55300 if (length > ATM_MAX_AAL5_PDU) {
55301 atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
55302 __func__, length, vcc);
55303- atomic_inc(&vcc->stats->rx_err);
55304+ atomic_inc_unchecked(&vcc->stats->rx_err);
55305 goto out;
55306 }
55307
55308@@ -367,14 +367,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55309 if (sarb->len < pdu_length) {
55310 atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
55311 __func__, pdu_length, sarb->len, vcc);
55312- atomic_inc(&vcc->stats->rx_err);
55313+ atomic_inc_unchecked(&vcc->stats->rx_err);
55314 goto out;
55315 }
55316
55317 if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
55318 atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
55319 __func__, vcc);
55320- atomic_inc(&vcc->stats->rx_err);
55321+ atomic_inc_unchecked(&vcc->stats->rx_err);
55322 goto out;
55323 }
55324
55325@@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55326 if (printk_ratelimit())
55327 atm_err(instance, "%s: no memory for skb (length: %u)!\n",
55328 __func__, length);
55329- atomic_inc(&vcc->stats->rx_drop);
55330+ atomic_inc_unchecked(&vcc->stats->rx_drop);
55331 goto out;
55332 }
55333
55334@@ -414,7 +414,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55335
55336 vcc->push(vcc, skb);
55337
55338- atomic_inc(&vcc->stats->rx);
55339+ atomic_inc_unchecked(&vcc->stats->rx);
55340 out:
55341 skb_trim(sarb, 0);
55342 }
55343@@ -612,7 +612,7 @@ static void usbatm_tx_process(unsigned long data)
55344 struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
55345
55346 usbatm_pop(vcc, skb);
55347- atomic_inc(&vcc->stats->tx);
55348+ atomic_inc_unchecked(&vcc->stats->tx);
55349
55350 skb = skb_dequeue(&instance->sndqueue);
55351 }
55352@@ -756,11 +756,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page
55353 if (!left--)
55354 return sprintf(page,
55355 "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
55356- atomic_read(&atm_dev->stats.aal5.tx),
55357- atomic_read(&atm_dev->stats.aal5.tx_err),
55358- atomic_read(&atm_dev->stats.aal5.rx),
55359- atomic_read(&atm_dev->stats.aal5.rx_err),
55360- atomic_read(&atm_dev->stats.aal5.rx_drop));
55361+ atomic_read_unchecked(&atm_dev->stats.aal5.tx),
55362+ atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
55363+ atomic_read_unchecked(&atm_dev->stats.aal5.rx),
55364+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
55365+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
55366
55367 if (!left--) {
55368 if (instance->disconnected)
55369diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
55370index 2a3bbdf..91d72cf 100644
55371--- a/drivers/usb/core/devices.c
55372+++ b/drivers/usb/core/devices.c
55373@@ -126,7 +126,7 @@ static const char format_endpt[] =
55374 * time it gets called.
55375 */
55376 static struct device_connect_event {
55377- atomic_t count;
55378+ atomic_unchecked_t count;
55379 wait_queue_head_t wait;
55380 } device_event = {
55381 .count = ATOMIC_INIT(1),
55382@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
55383
55384 void usbfs_conn_disc_event(void)
55385 {
55386- atomic_add(2, &device_event.count);
55387+ atomic_add_unchecked(2, &device_event.count);
55388 wake_up(&device_event.wait);
55389 }
55390
55391@@ -652,7 +652,7 @@ static unsigned int usb_device_poll(struct file *file,
55392
55393 poll_wait(file, &device_event.wait, wait);
55394
55395- event_count = atomic_read(&device_event.count);
55396+ event_count = atomic_read_unchecked(&device_event.count);
55397 if (file->f_version != event_count) {
55398 file->f_version = event_count;
55399 return POLLIN | POLLRDNORM;
55400diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
55401index 1163553..f292679 100644
55402--- a/drivers/usb/core/devio.c
55403+++ b/drivers/usb/core/devio.c
55404@@ -187,7 +187,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
55405 struct usb_dev_state *ps = file->private_data;
55406 struct usb_device *dev = ps->dev;
55407 ssize_t ret = 0;
55408- unsigned len;
55409+ size_t len;
55410 loff_t pos;
55411 int i;
55412
55413@@ -229,22 +229,22 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
55414 for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
55415 struct usb_config_descriptor *config =
55416 (struct usb_config_descriptor *)dev->rawdescriptors[i];
55417- unsigned int length = le16_to_cpu(config->wTotalLength);
55418+ size_t length = le16_to_cpu(config->wTotalLength);
55419
55420 if (*ppos < pos + length) {
55421
55422 /* The descriptor may claim to be longer than it
55423 * really is. Here is the actual allocated length. */
55424- unsigned alloclen =
55425+ size_t alloclen =
55426 le16_to_cpu(dev->config[i].desc.wTotalLength);
55427
55428- len = length - (*ppos - pos);
55429+ len = length + pos - *ppos;
55430 if (len > nbytes)
55431 len = nbytes;
55432
55433 /* Simply don't write (skip over) unallocated parts */
55434 if (alloclen > (*ppos - pos)) {
55435- alloclen -= (*ppos - pos);
55436+ alloclen = alloclen + pos - *ppos;
55437 if (copy_to_user(buf,
55438 dev->rawdescriptors[i] + (*ppos - pos),
55439 min(len, alloclen))) {
55440diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
55441index 45a915c..09f9735 100644
55442--- a/drivers/usb/core/hcd.c
55443+++ b/drivers/usb/core/hcd.c
55444@@ -1551,7 +1551,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
55445 */
55446 usb_get_urb(urb);
55447 atomic_inc(&urb->use_count);
55448- atomic_inc(&urb->dev->urbnum);
55449+ atomic_inc_unchecked(&urb->dev->urbnum);
55450 usbmon_urb_submit(&hcd->self, urb);
55451
55452 /* NOTE requirements on root-hub callers (usbfs and the hub
55453@@ -1578,7 +1578,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
55454 urb->hcpriv = NULL;
55455 INIT_LIST_HEAD(&urb->urb_list);
55456 atomic_dec(&urb->use_count);
55457- atomic_dec(&urb->dev->urbnum);
55458+ atomic_dec_unchecked(&urb->dev->urbnum);
55459 if (atomic_read(&urb->reject))
55460 wake_up(&usb_kill_urb_queue);
55461 usb_put_urb(urb);
55462diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
55463index 3b71516..1f26579 100644
55464--- a/drivers/usb/core/hub.c
55465+++ b/drivers/usb/core/hub.c
55466@@ -26,6 +26,7 @@
55467 #include <linux/mutex.h>
55468 #include <linux/random.h>
55469 #include <linux/pm_qos.h>
55470+#include <linux/grsecurity.h>
55471
55472 #include <asm/uaccess.h>
55473 #include <asm/byteorder.h>
55474@@ -4665,6 +4666,10 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
55475 goto done;
55476 return;
55477 }
55478+
55479+ if (gr_handle_new_usb())
55480+ goto done;
55481+
55482 if (hub_is_superspeed(hub->hdev))
55483 unit_load = 150;
55484 else
55485diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
55486index f368d20..0c30ac5 100644
55487--- a/drivers/usb/core/message.c
55488+++ b/drivers/usb/core/message.c
55489@@ -128,7 +128,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
55490 * Return: If successful, the number of bytes transferred. Otherwise, a negative
55491 * error number.
55492 */
55493-int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
55494+int __intentional_overflow(-1) usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
55495 __u8 requesttype, __u16 value, __u16 index, void *data,
55496 __u16 size, int timeout)
55497 {
55498@@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg);
55499 * If successful, 0. Otherwise a negative error number. The number of actual
55500 * bytes transferred will be stored in the @actual_length parameter.
55501 */
55502-int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
55503+int __intentional_overflow(-1) usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
55504 void *data, int len, int *actual_length, int timeout)
55505 {
55506 return usb_bulk_msg(usb_dev, pipe, data, len, actual_length, timeout);
55507@@ -220,7 +220,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg);
55508 * bytes transferred will be stored in the @actual_length parameter.
55509 *
55510 */
55511-int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
55512+int __intentional_overflow(-1) usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
55513 void *data, int len, int *actual_length, int timeout)
55514 {
55515 struct urb *urb;
55516diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
55517index d269738..7340cd7 100644
55518--- a/drivers/usb/core/sysfs.c
55519+++ b/drivers/usb/core/sysfs.c
55520@@ -244,7 +244,7 @@ static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr,
55521 struct usb_device *udev;
55522
55523 udev = to_usb_device(dev);
55524- return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
55525+ return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
55526 }
55527 static DEVICE_ATTR_RO(urbnum);
55528
55529diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
55530index b1fb9ae..4224885 100644
55531--- a/drivers/usb/core/usb.c
55532+++ b/drivers/usb/core/usb.c
55533@@ -431,7 +431,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
55534 set_dev_node(&dev->dev, dev_to_node(bus->controller));
55535 dev->state = USB_STATE_ATTACHED;
55536 dev->lpm_disable_count = 1;
55537- atomic_set(&dev->urbnum, 0);
55538+ atomic_set_unchecked(&dev->urbnum, 0);
55539
55540 INIT_LIST_HEAD(&dev->ep0.urb_list);
55541 dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
55542diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
55543index 8cfc319..4868255 100644
55544--- a/drivers/usb/early/ehci-dbgp.c
55545+++ b/drivers/usb/early/ehci-dbgp.c
55546@@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
55547
55548 #ifdef CONFIG_KGDB
55549 static struct kgdb_io kgdbdbgp_io_ops;
55550-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
55551+static struct kgdb_io kgdbdbgp_io_ops_console;
55552+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
55553 #else
55554 #define dbgp_kgdb_mode (0)
55555 #endif
55556@@ -1043,6 +1044,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
55557 .write_char = kgdbdbgp_write_char,
55558 };
55559
55560+static struct kgdb_io kgdbdbgp_io_ops_console = {
55561+ .name = "kgdbdbgp",
55562+ .read_char = kgdbdbgp_read_char,
55563+ .write_char = kgdbdbgp_write_char,
55564+ .is_console = 1
55565+};
55566+
55567 static int kgdbdbgp_wait_time;
55568
55569 static int __init kgdbdbgp_parse_config(char *str)
55570@@ -1058,8 +1066,10 @@ static int __init kgdbdbgp_parse_config(char *str)
55571 ptr++;
55572 kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
55573 }
55574- kgdb_register_io_module(&kgdbdbgp_io_ops);
55575- kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
55576+ if (early_dbgp_console.index != -1)
55577+ kgdb_register_io_module(&kgdbdbgp_io_ops_console);
55578+ else
55579+ kgdb_register_io_module(&kgdbdbgp_io_ops);
55580
55581 return 0;
55582 }
55583diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
55584index 9719abf..789d5d9 100644
55585--- a/drivers/usb/gadget/function/f_uac1.c
55586+++ b/drivers/usb/gadget/function/f_uac1.c
55587@@ -14,6 +14,7 @@
55588 #include <linux/module.h>
55589 #include <linux/device.h>
55590 #include <linux/atomic.h>
55591+#include <linux/module.h>
55592
55593 #include "u_uac1.h"
55594
55595diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
55596index 491082a..dfd7d17 100644
55597--- a/drivers/usb/gadget/function/u_serial.c
55598+++ b/drivers/usb/gadget/function/u_serial.c
55599@@ -729,9 +729,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
55600 spin_lock_irq(&port->port_lock);
55601
55602 /* already open? Great. */
55603- if (port->port.count) {
55604+ if (atomic_read(&port->port.count)) {
55605 status = 0;
55606- port->port.count++;
55607+ atomic_inc(&port->port.count);
55608
55609 /* currently opening/closing? wait ... */
55610 } else if (port->openclose) {
55611@@ -790,7 +790,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
55612 tty->driver_data = port;
55613 port->port.tty = tty;
55614
55615- port->port.count = 1;
55616+ atomic_set(&port->port.count, 1);
55617 port->openclose = false;
55618
55619 /* if connected, start the I/O stream */
55620@@ -832,11 +832,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
55621
55622 spin_lock_irq(&port->port_lock);
55623
55624- if (port->port.count != 1) {
55625- if (port->port.count == 0)
55626+ if (atomic_read(&port->port.count) != 1) {
55627+ if (atomic_read(&port->port.count) == 0)
55628 WARN_ON(1);
55629 else
55630- --port->port.count;
55631+ atomic_dec(&port->port.count);
55632 goto exit;
55633 }
55634
55635@@ -846,7 +846,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
55636 * and sleep if necessary
55637 */
55638 port->openclose = true;
55639- port->port.count = 0;
55640+ atomic_set(&port->port.count, 0);
55641
55642 gser = port->port_usb;
55643 if (gser && gser->disconnect)
55644@@ -1062,7 +1062,7 @@ static int gs_closed(struct gs_port *port)
55645 int cond;
55646
55647 spin_lock_irq(&port->port_lock);
55648- cond = (port->port.count == 0) && !port->openclose;
55649+ cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
55650 spin_unlock_irq(&port->port_lock);
55651 return cond;
55652 }
55653@@ -1205,7 +1205,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
55654 /* if it's already open, start I/O ... and notify the serial
55655 * protocol about open/close status (connect/disconnect).
55656 */
55657- if (port->port.count) {
55658+ if (atomic_read(&port->port.count)) {
55659 pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
55660 gs_start_io(port);
55661 if (gser->connect)
55662@@ -1252,7 +1252,7 @@ void gserial_disconnect(struct gserial *gser)
55663
55664 port->port_usb = NULL;
55665 gser->ioport = NULL;
55666- if (port->port.count > 0 || port->openclose) {
55667+ if (atomic_read(&port->port.count) > 0 || port->openclose) {
55668 wake_up_interruptible(&port->drain_wait);
55669 if (port->port.tty)
55670 tty_hangup(port->port.tty);
55671@@ -1268,7 +1268,7 @@ void gserial_disconnect(struct gserial *gser)
55672
55673 /* finally, free any unused/unusable I/O buffers */
55674 spin_lock_irqsave(&port->port_lock, flags);
55675- if (port->port.count == 0 && !port->openclose)
55676+ if (atomic_read(&port->port.count) == 0 && !port->openclose)
55677 gs_buf_free(&port->port_write_buf);
55678 gs_free_requests(gser->out, &port->read_pool, NULL);
55679 gs_free_requests(gser->out, &port->read_queue, NULL);
55680diff --git a/drivers/usb/gadget/function/u_uac1.c b/drivers/usb/gadget/function/u_uac1.c
55681index c78c841..48fd281 100644
55682--- a/drivers/usb/gadget/function/u_uac1.c
55683+++ b/drivers/usb/gadget/function/u_uac1.c
55684@@ -17,6 +17,7 @@
55685 #include <linux/ctype.h>
55686 #include <linux/random.h>
55687 #include <linux/syscalls.h>
55688+#include <linux/module.h>
55689
55690 #include "u_uac1.h"
55691
55692diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
55693index 7354d01..299478e 100644
55694--- a/drivers/usb/host/ehci-hub.c
55695+++ b/drivers/usb/host/ehci-hub.c
55696@@ -772,7 +772,7 @@ static struct urb *request_single_step_set_feature_urb(
55697 urb->transfer_flags = URB_DIR_IN;
55698 usb_get_urb(urb);
55699 atomic_inc(&urb->use_count);
55700- atomic_inc(&urb->dev->urbnum);
55701+ atomic_inc_unchecked(&urb->dev->urbnum);
55702 urb->setup_dma = dma_map_single(
55703 hcd->self.controller,
55704 urb->setup_packet,
55705@@ -839,7 +839,7 @@ static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
55706 urb->status = -EINPROGRESS;
55707 usb_get_urb(urb);
55708 atomic_inc(&urb->use_count);
55709- atomic_inc(&urb->dev->urbnum);
55710+ atomic_inc_unchecked(&urb->dev->urbnum);
55711 retval = submit_single_step_set_feature(hcd, urb, 0);
55712 if (!retval && !wait_for_completion_timeout(&done,
55713 msecs_to_jiffies(2000))) {
55714diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
55715index 1db0626..4948782 100644
55716--- a/drivers/usb/host/hwa-hc.c
55717+++ b/drivers/usb/host/hwa-hc.c
55718@@ -337,7 +337,10 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
55719 struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
55720 struct wahc *wa = &hwahc->wa;
55721 struct device *dev = &wa->usb_iface->dev;
55722- u8 mas_le[UWB_NUM_MAS/8];
55723+ u8 *mas_le = kmalloc(UWB_NUM_MAS/8, GFP_KERNEL);
55724+
55725+ if (mas_le == NULL)
55726+ return -ENOMEM;
55727
55728 /* Set the stream index */
55729 result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
55730@@ -356,10 +359,12 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
55731 WUSB_REQ_SET_WUSB_MAS,
55732 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
55733 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber,
55734- mas_le, 32, USB_CTRL_SET_TIMEOUT);
55735+ mas_le, UWB_NUM_MAS/8, USB_CTRL_SET_TIMEOUT);
55736 if (result < 0)
55737 dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result);
55738 out:
55739+ kfree(mas_le);
55740+
55741 return result;
55742 }
55743
55744diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
55745index b3d245e..99549ed 100644
55746--- a/drivers/usb/misc/appledisplay.c
55747+++ b/drivers/usb/misc/appledisplay.c
55748@@ -84,7 +84,7 @@ struct appledisplay {
55749 struct mutex sysfslock; /* concurrent read and write */
55750 };
55751
55752-static atomic_t count_displays = ATOMIC_INIT(0);
55753+static atomic_unchecked_t count_displays = ATOMIC_INIT(0);
55754 static struct workqueue_struct *wq;
55755
55756 static void appledisplay_complete(struct urb *urb)
55757@@ -288,7 +288,7 @@ static int appledisplay_probe(struct usb_interface *iface,
55758
55759 /* Register backlight device */
55760 snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
55761- atomic_inc_return(&count_displays) - 1);
55762+ atomic_inc_return_unchecked(&count_displays) - 1);
55763 memset(&props, 0, sizeof(struct backlight_properties));
55764 props.type = BACKLIGHT_RAW;
55765 props.max_brightness = 0xff;
55766diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
55767index 3806e70..55c508b 100644
55768--- a/drivers/usb/serial/console.c
55769+++ b/drivers/usb/serial/console.c
55770@@ -126,7 +126,7 @@ static int usb_console_setup(struct console *co, char *options)
55771
55772 info->port = port;
55773
55774- ++port->port.count;
55775+ atomic_inc(&port->port.count);
55776 if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
55777 if (serial->type->set_termios) {
55778 /*
55779@@ -175,7 +175,7 @@ static int usb_console_setup(struct console *co, char *options)
55780 }
55781 /* Now that any required fake tty operations are completed restore
55782 * the tty port count */
55783- --port->port.count;
55784+ atomic_dec(&port->port.count);
55785 /* The console is special in terms of closing the device so
55786 * indicate this port is now acting as a system console. */
55787 port->port.console = 1;
55788@@ -188,7 +188,7 @@ static int usb_console_setup(struct console *co, char *options)
55789 put_tty:
55790 tty_kref_put(tty);
55791 reset_open_count:
55792- port->port.count = 0;
55793+ atomic_set(&port->port.count, 0);
55794 usb_autopm_put_interface(serial->interface);
55795 error_get_interface:
55796 usb_serial_put(serial);
55797@@ -199,7 +199,7 @@ static int usb_console_setup(struct console *co, char *options)
55798 static void usb_console_write(struct console *co,
55799 const char *buf, unsigned count)
55800 {
55801- static struct usbcons_info *info = &usbcons_info;
55802+ struct usbcons_info *info = &usbcons_info;
55803 struct usb_serial_port *port = info->port;
55804 struct usb_serial *serial;
55805 int retval = -ENODEV;
55806diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
55807index 307e339..6aa97cb 100644
55808--- a/drivers/usb/storage/usb.h
55809+++ b/drivers/usb/storage/usb.h
55810@@ -63,7 +63,7 @@ struct us_unusual_dev {
55811 __u8 useProtocol;
55812 __u8 useTransport;
55813 int (*initFunction)(struct us_data *);
55814-};
55815+} __do_const;
55816
55817
55818 /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
55819diff --git a/drivers/usb/usbip/vhci.h b/drivers/usb/usbip/vhci.h
55820index a863a98..d272795 100644
55821--- a/drivers/usb/usbip/vhci.h
55822+++ b/drivers/usb/usbip/vhci.h
55823@@ -83,7 +83,7 @@ struct vhci_hcd {
55824 unsigned resuming:1;
55825 unsigned long re_timeout;
55826
55827- atomic_t seqnum;
55828+ atomic_unchecked_t seqnum;
55829
55830 /*
55831 * NOTE:
55832diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
55833index 11f6f61..1087910 100644
55834--- a/drivers/usb/usbip/vhci_hcd.c
55835+++ b/drivers/usb/usbip/vhci_hcd.c
55836@@ -440,7 +440,7 @@ static void vhci_tx_urb(struct urb *urb)
55837
55838 spin_lock(&vdev->priv_lock);
55839
55840- priv->seqnum = atomic_inc_return(&the_controller->seqnum);
55841+ priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
55842 if (priv->seqnum == 0xffff)
55843 dev_info(&urb->dev->dev, "seqnum max\n");
55844
55845@@ -685,7 +685,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
55846 return -ENOMEM;
55847 }
55848
55849- unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
55850+ unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
55851 if (unlink->seqnum == 0xffff)
55852 pr_info("seqnum max\n");
55853
55854@@ -889,7 +889,7 @@ static int vhci_start(struct usb_hcd *hcd)
55855 vdev->rhport = rhport;
55856 }
55857
55858- atomic_set(&vhci->seqnum, 0);
55859+ atomic_set_unchecked(&vhci->seqnum, 0);
55860 spin_lock_init(&vhci->lock);
55861
55862 hcd->power_budget = 0; /* no limit */
55863diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
55864index 00e4a54..d676f85 100644
55865--- a/drivers/usb/usbip/vhci_rx.c
55866+++ b/drivers/usb/usbip/vhci_rx.c
55867@@ -80,7 +80,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
55868 if (!urb) {
55869 pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
55870 pr_info("max seqnum %d\n",
55871- atomic_read(&the_controller->seqnum));
55872+ atomic_read_unchecked(&the_controller->seqnum));
55873 usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
55874 return;
55875 }
55876diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
55877index edc7267..9f65ce2 100644
55878--- a/drivers/usb/wusbcore/wa-hc.h
55879+++ b/drivers/usb/wusbcore/wa-hc.h
55880@@ -240,7 +240,7 @@ struct wahc {
55881 spinlock_t xfer_list_lock;
55882 struct work_struct xfer_enqueue_work;
55883 struct work_struct xfer_error_work;
55884- atomic_t xfer_id_count;
55885+ atomic_unchecked_t xfer_id_count;
55886
55887 kernel_ulong_t quirks;
55888 };
55889@@ -305,7 +305,7 @@ static inline void wa_init(struct wahc *wa)
55890 INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
55891 INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
55892 wa->dto_in_use = 0;
55893- atomic_set(&wa->xfer_id_count, 1);
55894+ atomic_set_unchecked(&wa->xfer_id_count, 1);
55895 /* init the buf in URBs */
55896 for (index = 0; index < WA_MAX_BUF_IN_URBS; ++index)
55897 usb_init_urb(&(wa->buf_in_urbs[index]));
55898diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
55899index 69af4fd..da390d7 100644
55900--- a/drivers/usb/wusbcore/wa-xfer.c
55901+++ b/drivers/usb/wusbcore/wa-xfer.c
55902@@ -314,7 +314,7 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
55903 */
55904 static void wa_xfer_id_init(struct wa_xfer *xfer)
55905 {
55906- xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
55907+ xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
55908 }
55909
55910 /* Return the xfer's ID. */
55911diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
55912index 837d177..170724af 100644
55913--- a/drivers/vfio/vfio.c
55914+++ b/drivers/vfio/vfio.c
55915@@ -518,7 +518,7 @@ static int vfio_group_nb_add_dev(struct vfio_group *group, struct device *dev)
55916 return 0;
55917
55918 /* TODO Prevent device auto probing */
55919- WARN("Device %s added to live group %d!\n", dev_name(dev),
55920+ WARN(1, "Device %s added to live group %d!\n", dev_name(dev),
55921 iommu_group_id(group->iommu_group));
55922
55923 return 0;
55924diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
55925index 3bb02c6..a01ff38 100644
55926--- a/drivers/vhost/vringh.c
55927+++ b/drivers/vhost/vringh.c
55928@@ -551,7 +551,7 @@ static inline void __vringh_notify_disable(struct vringh *vrh,
55929 static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
55930 {
55931 __virtio16 v = 0;
55932- int rc = get_user(v, (__force __virtio16 __user *)p);
55933+ int rc = get_user(v, (__force_user __virtio16 *)p);
55934 *val = vringh16_to_cpu(vrh, v);
55935 return rc;
55936 }
55937@@ -559,12 +559,12 @@ static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio
55938 static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
55939 {
55940 __virtio16 v = cpu_to_vringh16(vrh, val);
55941- return put_user(v, (__force __virtio16 __user *)p);
55942+ return put_user(v, (__force_user __virtio16 *)p);
55943 }
55944
55945 static inline int copydesc_user(void *dst, const void *src, size_t len)
55946 {
55947- return copy_from_user(dst, (__force void __user *)src, len) ?
55948+ return copy_from_user(dst, (void __force_user *)src, len) ?
55949 -EFAULT : 0;
55950 }
55951
55952@@ -572,19 +572,19 @@ static inline int putused_user(struct vring_used_elem *dst,
55953 const struct vring_used_elem *src,
55954 unsigned int num)
55955 {
55956- return copy_to_user((__force void __user *)dst, src,
55957+ return copy_to_user((void __force_user *)dst, src,
55958 sizeof(*dst) * num) ? -EFAULT : 0;
55959 }
55960
55961 static inline int xfer_from_user(void *src, void *dst, size_t len)
55962 {
55963- return copy_from_user(dst, (__force void __user *)src, len) ?
55964+ return copy_from_user(dst, (void __force_user *)src, len) ?
55965 -EFAULT : 0;
55966 }
55967
55968 static inline int xfer_to_user(void *dst, void *src, size_t len)
55969 {
55970- return copy_to_user((__force void __user *)dst, src, len) ?
55971+ return copy_to_user((void __force_user *)dst, src, len) ?
55972 -EFAULT : 0;
55973 }
55974
55975@@ -621,9 +621,9 @@ int vringh_init_user(struct vringh *vrh, u64 features,
55976 vrh->last_used_idx = 0;
55977 vrh->vring.num = num;
55978 /* vring expects kernel addresses, but only used via accessors. */
55979- vrh->vring.desc = (__force struct vring_desc *)desc;
55980- vrh->vring.avail = (__force struct vring_avail *)avail;
55981- vrh->vring.used = (__force struct vring_used *)used;
55982+ vrh->vring.desc = (__force_kernel struct vring_desc *)desc;
55983+ vrh->vring.avail = (__force_kernel struct vring_avail *)avail;
55984+ vrh->vring.used = (__force_kernel struct vring_used *)used;
55985 return 0;
55986 }
55987 EXPORT_SYMBOL(vringh_init_user);
55988@@ -826,7 +826,7 @@ static inline int getu16_kern(const struct vringh *vrh,
55989
55990 static inline int putu16_kern(const struct vringh *vrh, __virtio16 *p, u16 val)
55991 {
55992- ACCESS_ONCE(*p) = cpu_to_vringh16(vrh, val);
55993+ ACCESS_ONCE_RW(*p) = cpu_to_vringh16(vrh, val);
55994 return 0;
55995 }
55996
55997diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
55998index 84a110a..96312c3 100644
55999--- a/drivers/video/backlight/kb3886_bl.c
56000+++ b/drivers/video/backlight/kb3886_bl.c
56001@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
56002 static unsigned long kb3886bl_flags;
56003 #define KB3886BL_SUSPENDED 0x01
56004
56005-static struct dmi_system_id kb3886bl_device_table[] __initdata = {
56006+static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
56007 {
56008 .ident = "Sahara Touch-iT",
56009 .matches = {
56010diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c
56011index 1b0b233..6f34c2c 100644
56012--- a/drivers/video/fbdev/arcfb.c
56013+++ b/drivers/video/fbdev/arcfb.c
56014@@ -458,7 +458,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf,
56015 return -ENOSPC;
56016
56017 err = 0;
56018- if ((count + p) > fbmemlength) {
56019+ if (count > (fbmemlength - p)) {
56020 count = fbmemlength - p;
56021 err = -ENOSPC;
56022 }
56023diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
56024index aedf2fb..47c9aca 100644
56025--- a/drivers/video/fbdev/aty/aty128fb.c
56026+++ b/drivers/video/fbdev/aty/aty128fb.c
56027@@ -149,7 +149,7 @@ enum {
56028 };
56029
56030 /* Must match above enum */
56031-static char * const r128_family[] = {
56032+static const char * const r128_family[] = {
56033 "AGP",
56034 "PCI",
56035 "PRO AGP",
56036diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
56037index 8789e48..698fe4c 100644
56038--- a/drivers/video/fbdev/aty/atyfb_base.c
56039+++ b/drivers/video/fbdev/aty/atyfb_base.c
56040@@ -1326,10 +1326,14 @@ static int atyfb_set_par(struct fb_info *info)
56041 par->accel_flags = var->accel_flags; /* hack */
56042
56043 if (var->accel_flags) {
56044- info->fbops->fb_sync = atyfb_sync;
56045+ pax_open_kernel();
56046+ *(void **)&info->fbops->fb_sync = atyfb_sync;
56047+ pax_close_kernel();
56048 info->flags &= ~FBINFO_HWACCEL_DISABLED;
56049 } else {
56050- info->fbops->fb_sync = NULL;
56051+ pax_open_kernel();
56052+ *(void **)&info->fbops->fb_sync = NULL;
56053+ pax_close_kernel();
56054 info->flags |= FBINFO_HWACCEL_DISABLED;
56055 }
56056
56057diff --git a/drivers/video/fbdev/aty/mach64_cursor.c b/drivers/video/fbdev/aty/mach64_cursor.c
56058index 2fa0317..4983f2a 100644
56059--- a/drivers/video/fbdev/aty/mach64_cursor.c
56060+++ b/drivers/video/fbdev/aty/mach64_cursor.c
56061@@ -8,6 +8,7 @@
56062 #include "../core/fb_draw.h"
56063
56064 #include <asm/io.h>
56065+#include <asm/pgtable.h>
56066
56067 #ifdef __sparc__
56068 #include <asm/fbio.h>
56069@@ -218,7 +219,9 @@ int aty_init_cursor(struct fb_info *info)
56070 info->sprite.buf_align = 16; /* and 64 lines tall. */
56071 info->sprite.flags = FB_PIXMAP_IO;
56072
56073- info->fbops->fb_cursor = atyfb_cursor;
56074+ pax_open_kernel();
56075+ *(void **)&info->fbops->fb_cursor = atyfb_cursor;
56076+ pax_close_kernel();
56077
56078 return 0;
56079 }
56080diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
56081index d6cab1f..112f680 100644
56082--- a/drivers/video/fbdev/core/fb_defio.c
56083+++ b/drivers/video/fbdev/core/fb_defio.c
56084@@ -207,7 +207,9 @@ void fb_deferred_io_init(struct fb_info *info)
56085
56086 BUG_ON(!fbdefio);
56087 mutex_init(&fbdefio->lock);
56088- info->fbops->fb_mmap = fb_deferred_io_mmap;
56089+ pax_open_kernel();
56090+ *(void **)&info->fbops->fb_mmap = fb_deferred_io_mmap;
56091+ pax_close_kernel();
56092 INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
56093 INIT_LIST_HEAD(&fbdefio->pagelist);
56094 if (fbdefio->delay == 0) /* set a default of 1 s */
56095@@ -238,7 +240,7 @@ void fb_deferred_io_cleanup(struct fb_info *info)
56096 page->mapping = NULL;
56097 }
56098
56099- info->fbops->fb_mmap = NULL;
56100+ *(void **)&info->fbops->fb_mmap = NULL;
56101 mutex_destroy(&fbdefio->lock);
56102 }
56103 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
56104diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
56105index 0705d88..d9429bf 100644
56106--- a/drivers/video/fbdev/core/fbmem.c
56107+++ b/drivers/video/fbdev/core/fbmem.c
56108@@ -1301,7 +1301,7 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
56109 __u32 data;
56110 int err;
56111
56112- err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
56113+ err = copy_to_user(fix32->id, &fix->id, sizeof(fix32->id));
56114
56115 data = (__u32) (unsigned long) fix->smem_start;
56116 err |= put_user(data, &fix32->smem_start);
56117diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
56118index 4254336..282567e 100644
56119--- a/drivers/video/fbdev/hyperv_fb.c
56120+++ b/drivers/video/fbdev/hyperv_fb.c
56121@@ -240,7 +240,7 @@ static uint screen_fb_size;
56122 static inline int synthvid_send(struct hv_device *hdev,
56123 struct synthvid_msg *msg)
56124 {
56125- static atomic64_t request_id = ATOMIC64_INIT(0);
56126+ static atomic64_unchecked_t request_id = ATOMIC64_INIT(0);
56127 int ret;
56128
56129 msg->pipe_hdr.type = PIPE_MSG_DATA;
56130@@ -248,7 +248,7 @@ static inline int synthvid_send(struct hv_device *hdev,
56131
56132 ret = vmbus_sendpacket(hdev->channel, msg,
56133 msg->vid_hdr.size + sizeof(struct pipe_msg_hdr),
56134- atomic64_inc_return(&request_id),
56135+ atomic64_inc_return_unchecked(&request_id),
56136 VM_PKT_DATA_INBAND, 0);
56137
56138 if (ret)
56139diff --git a/drivers/video/fbdev/i810/i810_accel.c b/drivers/video/fbdev/i810/i810_accel.c
56140index 7672d2e..b56437f 100644
56141--- a/drivers/video/fbdev/i810/i810_accel.c
56142+++ b/drivers/video/fbdev/i810/i810_accel.c
56143@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
56144 }
56145 }
56146 printk("ringbuffer lockup!!!\n");
56147+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
56148 i810_report_error(mmio);
56149 par->dev_flags |= LOCKUP;
56150 info->pixmap.scan_align = 1;
56151diff --git a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56152index a01147f..5d896f8 100644
56153--- a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56154+++ b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56155@@ -1088,14 +1088,20 @@ static void MGAG100_restore(struct matrox_fb_info *minfo)
56156
56157 #ifdef CONFIG_FB_MATROX_MYSTIQUE
56158 struct matrox_switch matrox_mystique = {
56159- MGA1064_preinit, MGA1064_reset, MGA1064_init, MGA1064_restore,
56160+ .preinit = MGA1064_preinit,
56161+ .reset = MGA1064_reset,
56162+ .init = MGA1064_init,
56163+ .restore = MGA1064_restore,
56164 };
56165 EXPORT_SYMBOL(matrox_mystique);
56166 #endif
56167
56168 #ifdef CONFIG_FB_MATROX_G
56169 struct matrox_switch matrox_G100 = {
56170- MGAG100_preinit, MGAG100_reset, MGAG100_init, MGAG100_restore,
56171+ .preinit = MGAG100_preinit,
56172+ .reset = MGAG100_reset,
56173+ .init = MGAG100_init,
56174+ .restore = MGAG100_restore,
56175 };
56176 EXPORT_SYMBOL(matrox_G100);
56177 #endif
56178diff --git a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56179index 195ad7c..09743fc 100644
56180--- a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56181+++ b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56182@@ -738,7 +738,10 @@ static int Ti3026_preinit(struct matrox_fb_info *minfo)
56183 }
56184
56185 struct matrox_switch matrox_millennium = {
56186- Ti3026_preinit, Ti3026_reset, Ti3026_init, Ti3026_restore
56187+ .preinit = Ti3026_preinit,
56188+ .reset = Ti3026_reset,
56189+ .init = Ti3026_init,
56190+ .restore = Ti3026_restore
56191 };
56192 EXPORT_SYMBOL(matrox_millennium);
56193 #endif
56194diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56195index fe92eed..106e085 100644
56196--- a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56197+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56198@@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
56199 struct mb862xxfb_par *par = info->par;
56200
56201 if (info->var.bits_per_pixel == 32) {
56202- info->fbops->fb_fillrect = cfb_fillrect;
56203- info->fbops->fb_copyarea = cfb_copyarea;
56204- info->fbops->fb_imageblit = cfb_imageblit;
56205+ pax_open_kernel();
56206+ *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
56207+ *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
56208+ *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
56209+ pax_close_kernel();
56210 } else {
56211 outreg(disp, GC_L0EM, 3);
56212- info->fbops->fb_fillrect = mb86290fb_fillrect;
56213- info->fbops->fb_copyarea = mb86290fb_copyarea;
56214- info->fbops->fb_imageblit = mb86290fb_imageblit;
56215+ pax_open_kernel();
56216+ *(void **)&info->fbops->fb_fillrect = mb86290fb_fillrect;
56217+ *(void **)&info->fbops->fb_copyarea = mb86290fb_copyarea;
56218+ *(void **)&info->fbops->fb_imageblit = mb86290fb_imageblit;
56219+ pax_close_kernel();
56220 }
56221 outreg(draw, GDC_REG_DRAW_BASE, 0);
56222 outreg(draw, GDC_REG_MODE_MISC, 0x8000);
56223diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
56224index def0412..fed6529 100644
56225--- a/drivers/video/fbdev/nvidia/nvidia.c
56226+++ b/drivers/video/fbdev/nvidia/nvidia.c
56227@@ -669,19 +669,23 @@ static int nvidiafb_set_par(struct fb_info *info)
56228 info->fix.line_length = (info->var.xres_virtual *
56229 info->var.bits_per_pixel) >> 3;
56230 if (info->var.accel_flags) {
56231- info->fbops->fb_imageblit = nvidiafb_imageblit;
56232- info->fbops->fb_fillrect = nvidiafb_fillrect;
56233- info->fbops->fb_copyarea = nvidiafb_copyarea;
56234- info->fbops->fb_sync = nvidiafb_sync;
56235+ pax_open_kernel();
56236+ *(void **)&info->fbops->fb_imageblit = nvidiafb_imageblit;
56237+ *(void **)&info->fbops->fb_fillrect = nvidiafb_fillrect;
56238+ *(void **)&info->fbops->fb_copyarea = nvidiafb_copyarea;
56239+ *(void **)&info->fbops->fb_sync = nvidiafb_sync;
56240+ pax_close_kernel();
56241 info->pixmap.scan_align = 4;
56242 info->flags &= ~FBINFO_HWACCEL_DISABLED;
56243 info->flags |= FBINFO_READS_FAST;
56244 NVResetGraphics(info);
56245 } else {
56246- info->fbops->fb_imageblit = cfb_imageblit;
56247- info->fbops->fb_fillrect = cfb_fillrect;
56248- info->fbops->fb_copyarea = cfb_copyarea;
56249- info->fbops->fb_sync = NULL;
56250+ pax_open_kernel();
56251+ *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
56252+ *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
56253+ *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
56254+ *(void **)&info->fbops->fb_sync = NULL;
56255+ pax_close_kernel();
56256 info->pixmap.scan_align = 1;
56257 info->flags |= FBINFO_HWACCEL_DISABLED;
56258 info->flags &= ~FBINFO_READS_FAST;
56259@@ -1173,8 +1177,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
56260 info->pixmap.size = 8 * 1024;
56261 info->pixmap.flags = FB_PIXMAP_SYSTEM;
56262
56263- if (!hwcur)
56264- info->fbops->fb_cursor = NULL;
56265+ if (!hwcur) {
56266+ pax_open_kernel();
56267+ *(void **)&info->fbops->fb_cursor = NULL;
56268+ pax_close_kernel();
56269+ }
56270
56271 info->var.accel_flags = (!noaccel);
56272
56273diff --git a/drivers/video/fbdev/omap2/dss/display.c b/drivers/video/fbdev/omap2/dss/display.c
56274index 2412a0d..294215b 100644
56275--- a/drivers/video/fbdev/omap2/dss/display.c
56276+++ b/drivers/video/fbdev/omap2/dss/display.c
56277@@ -161,12 +161,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
56278 if (dssdev->name == NULL)
56279 dssdev->name = dssdev->alias;
56280
56281+ pax_open_kernel();
56282 if (drv && drv->get_resolution == NULL)
56283- drv->get_resolution = omapdss_default_get_resolution;
56284+ *(void **)&drv->get_resolution = omapdss_default_get_resolution;
56285 if (drv && drv->get_recommended_bpp == NULL)
56286- drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
56287+ *(void **)&drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
56288 if (drv && drv->get_timings == NULL)
56289- drv->get_timings = omapdss_default_get_timings;
56290+ *(void **)&drv->get_timings = omapdss_default_get_timings;
56291+ pax_close_kernel();
56292
56293 mutex_lock(&panel_list_mutex);
56294 list_add_tail(&dssdev->panel_list, &panel_list);
56295diff --git a/drivers/video/fbdev/s1d13xxxfb.c b/drivers/video/fbdev/s1d13xxxfb.c
56296index 83433cb..71e9b98 100644
56297--- a/drivers/video/fbdev/s1d13xxxfb.c
56298+++ b/drivers/video/fbdev/s1d13xxxfb.c
56299@@ -881,8 +881,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
56300
56301 switch(prod_id) {
56302 case S1D13506_PROD_ID: /* activate acceleration */
56303- s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
56304- s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
56305+ pax_open_kernel();
56306+ *(void **)&s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
56307+ *(void **)&s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
56308+ pax_close_kernel();
56309 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
56310 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
56311 break;
56312diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
56313index d3013cd..95b8285 100644
56314--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
56315+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
56316@@ -439,9 +439,9 @@ static unsigned long lcdc_sys_read_data(void *handle)
56317 }
56318
56319 static struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
56320- lcdc_sys_write_index,
56321- lcdc_sys_write_data,
56322- lcdc_sys_read_data,
56323+ .write_index = lcdc_sys_write_index,
56324+ .write_data = lcdc_sys_write_data,
56325+ .read_data = lcdc_sys_read_data,
56326 };
56327
56328 static int sh_mobile_lcdc_sginit(struct fb_info *info,
56329diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
56330index 9279e5f..d5f5276 100644
56331--- a/drivers/video/fbdev/smscufx.c
56332+++ b/drivers/video/fbdev/smscufx.c
56333@@ -1174,7 +1174,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
56334 fb_deferred_io_cleanup(info);
56335 kfree(info->fbdefio);
56336 info->fbdefio = NULL;
56337- info->fbops->fb_mmap = ufx_ops_mmap;
56338+ pax_open_kernel();
56339+ *(void **)&info->fbops->fb_mmap = ufx_ops_mmap;
56340+ pax_close_kernel();
56341 }
56342
56343 pr_debug("released /dev/fb%d user=%d count=%d",
56344diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
56345index ff2b873..626a8d5 100644
56346--- a/drivers/video/fbdev/udlfb.c
56347+++ b/drivers/video/fbdev/udlfb.c
56348@@ -623,11 +623,11 @@ static int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
56349 dlfb_urb_completion(urb);
56350
56351 error:
56352- atomic_add(bytes_sent, &dev->bytes_sent);
56353- atomic_add(bytes_identical, &dev->bytes_identical);
56354- atomic_add(width*height*2, &dev->bytes_rendered);
56355+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
56356+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
56357+ atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
56358 end_cycles = get_cycles();
56359- atomic_add(((unsigned int) ((end_cycles - start_cycles)
56360+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
56361 >> 10)), /* Kcycles */
56362 &dev->cpu_kcycles_used);
56363
56364@@ -748,11 +748,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
56365 dlfb_urb_completion(urb);
56366
56367 error:
56368- atomic_add(bytes_sent, &dev->bytes_sent);
56369- atomic_add(bytes_identical, &dev->bytes_identical);
56370- atomic_add(bytes_rendered, &dev->bytes_rendered);
56371+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
56372+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
56373+ atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
56374 end_cycles = get_cycles();
56375- atomic_add(((unsigned int) ((end_cycles - start_cycles)
56376+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
56377 >> 10)), /* Kcycles */
56378 &dev->cpu_kcycles_used);
56379 }
56380@@ -991,7 +991,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
56381 fb_deferred_io_cleanup(info);
56382 kfree(info->fbdefio);
56383 info->fbdefio = NULL;
56384- info->fbops->fb_mmap = dlfb_ops_mmap;
56385+ pax_open_kernel();
56386+ *(void **)&info->fbops->fb_mmap = dlfb_ops_mmap;
56387+ pax_close_kernel();
56388 }
56389
56390 pr_warn("released /dev/fb%d user=%d count=%d\n",
56391@@ -1373,7 +1375,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
56392 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56393 struct dlfb_data *dev = fb_info->par;
56394 return snprintf(buf, PAGE_SIZE, "%u\n",
56395- atomic_read(&dev->bytes_rendered));
56396+ atomic_read_unchecked(&dev->bytes_rendered));
56397 }
56398
56399 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
56400@@ -1381,7 +1383,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
56401 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56402 struct dlfb_data *dev = fb_info->par;
56403 return snprintf(buf, PAGE_SIZE, "%u\n",
56404- atomic_read(&dev->bytes_identical));
56405+ atomic_read_unchecked(&dev->bytes_identical));
56406 }
56407
56408 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
56409@@ -1389,7 +1391,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
56410 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56411 struct dlfb_data *dev = fb_info->par;
56412 return snprintf(buf, PAGE_SIZE, "%u\n",
56413- atomic_read(&dev->bytes_sent));
56414+ atomic_read_unchecked(&dev->bytes_sent));
56415 }
56416
56417 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
56418@@ -1397,7 +1399,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
56419 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56420 struct dlfb_data *dev = fb_info->par;
56421 return snprintf(buf, PAGE_SIZE, "%u\n",
56422- atomic_read(&dev->cpu_kcycles_used));
56423+ atomic_read_unchecked(&dev->cpu_kcycles_used));
56424 }
56425
56426 static ssize_t edid_show(
56427@@ -1457,10 +1459,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
56428 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56429 struct dlfb_data *dev = fb_info->par;
56430
56431- atomic_set(&dev->bytes_rendered, 0);
56432- atomic_set(&dev->bytes_identical, 0);
56433- atomic_set(&dev->bytes_sent, 0);
56434- atomic_set(&dev->cpu_kcycles_used, 0);
56435+ atomic_set_unchecked(&dev->bytes_rendered, 0);
56436+ atomic_set_unchecked(&dev->bytes_identical, 0);
56437+ atomic_set_unchecked(&dev->bytes_sent, 0);
56438+ atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
56439
56440 return count;
56441 }
56442diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
56443index d32d1c4..46722e6 100644
56444--- a/drivers/video/fbdev/uvesafb.c
56445+++ b/drivers/video/fbdev/uvesafb.c
56446@@ -19,6 +19,7 @@
56447 #include <linux/io.h>
56448 #include <linux/mutex.h>
56449 #include <linux/slab.h>
56450+#include <linux/moduleloader.h>
56451 #include <video/edid.h>
56452 #include <video/uvesafb.h>
56453 #ifdef CONFIG_X86
56454@@ -565,10 +566,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
56455 if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
56456 par->pmi_setpal = par->ypan = 0;
56457 } else {
56458+
56459+#ifdef CONFIG_PAX_KERNEXEC
56460+#ifdef CONFIG_MODULES
56461+ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
56462+#endif
56463+ if (!par->pmi_code) {
56464+ par->pmi_setpal = par->ypan = 0;
56465+ return 0;
56466+ }
56467+#endif
56468+
56469 par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
56470 + task->t.regs.edi);
56471+
56472+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56473+ pax_open_kernel();
56474+ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
56475+ pax_close_kernel();
56476+
56477+ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
56478+ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
56479+#else
56480 par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
56481 par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
56482+#endif
56483+
56484 printk(KERN_INFO "uvesafb: protected mode interface info at "
56485 "%04x:%04x\n",
56486 (u16)task->t.regs.es, (u16)task->t.regs.edi);
56487@@ -813,13 +836,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
56488 par->ypan = ypan;
56489
56490 if (par->pmi_setpal || par->ypan) {
56491+#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
56492 if (__supported_pte_mask & _PAGE_NX) {
56493 par->pmi_setpal = par->ypan = 0;
56494 printk(KERN_WARNING "uvesafb: NX protection is active, "
56495 "better not use the PMI.\n");
56496- } else {
56497+ } else
56498+#endif
56499 uvesafb_vbe_getpmi(task, par);
56500- }
56501 }
56502 #else
56503 /* The protected mode interface is not available on non-x86. */
56504@@ -1452,8 +1476,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
56505 info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
56506
56507 /* Disable blanking if the user requested so. */
56508- if (!blank)
56509- info->fbops->fb_blank = NULL;
56510+ if (!blank) {
56511+ pax_open_kernel();
56512+ *(void **)&info->fbops->fb_blank = NULL;
56513+ pax_close_kernel();
56514+ }
56515
56516 /*
56517 * Find out how much IO memory is required for the mode with
56518@@ -1524,8 +1551,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
56519 info->flags = FBINFO_FLAG_DEFAULT |
56520 (par->ypan ? FBINFO_HWACCEL_YPAN : 0);
56521
56522- if (!par->ypan)
56523- info->fbops->fb_pan_display = NULL;
56524+ if (!par->ypan) {
56525+ pax_open_kernel();
56526+ *(void **)&info->fbops->fb_pan_display = NULL;
56527+ pax_close_kernel();
56528+ }
56529 }
56530
56531 static void uvesafb_init_mtrr(struct fb_info *info)
56532@@ -1786,6 +1816,11 @@ out_mode:
56533 out:
56534 kfree(par->vbe_modes);
56535
56536+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56537+ if (par->pmi_code)
56538+ module_memfree_exec(par->pmi_code);
56539+#endif
56540+
56541 framebuffer_release(info);
56542 return err;
56543 }
56544@@ -1810,6 +1845,11 @@ static int uvesafb_remove(struct platform_device *dev)
56545 kfree(par->vbe_state_orig);
56546 kfree(par->vbe_state_saved);
56547
56548+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56549+ if (par->pmi_code)
56550+ module_memfree_exec(par->pmi_code);
56551+#endif
56552+
56553 framebuffer_release(info);
56554 }
56555 return 0;
56556diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
56557index d79a0ac..2d0c3d4 100644
56558--- a/drivers/video/fbdev/vesafb.c
56559+++ b/drivers/video/fbdev/vesafb.c
56560@@ -9,6 +9,7 @@
56561 */
56562
56563 #include <linux/module.h>
56564+#include <linux/moduleloader.h>
56565 #include <linux/kernel.h>
56566 #include <linux/errno.h>
56567 #include <linux/string.h>
56568@@ -52,8 +53,8 @@ static int vram_remap; /* Set amount of memory to be used */
56569 static int vram_total; /* Set total amount of memory */
56570 static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
56571 static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
56572-static void (*pmi_start)(void) __read_mostly;
56573-static void (*pmi_pal) (void) __read_mostly;
56574+static void (*pmi_start)(void) __read_only;
56575+static void (*pmi_pal) (void) __read_only;
56576 static int depth __read_mostly;
56577 static int vga_compat __read_mostly;
56578 /* --------------------------------------------------------------------- */
56579@@ -233,6 +234,7 @@ static int vesafb_probe(struct platform_device *dev)
56580 unsigned int size_remap;
56581 unsigned int size_total;
56582 char *option = NULL;
56583+ void *pmi_code = NULL;
56584
56585 /* ignore error return of fb_get_options */
56586 fb_get_options("vesafb", &option);
56587@@ -279,10 +281,6 @@ static int vesafb_probe(struct platform_device *dev)
56588 size_remap = size_total;
56589 vesafb_fix.smem_len = size_remap;
56590
56591-#ifndef __i386__
56592- screen_info.vesapm_seg = 0;
56593-#endif
56594-
56595 if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
56596 printk(KERN_WARNING
56597 "vesafb: cannot reserve video memory at 0x%lx\n",
56598@@ -312,9 +310,21 @@ static int vesafb_probe(struct platform_device *dev)
56599 printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
56600 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
56601
56602+#ifdef __i386__
56603+
56604+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56605+ pmi_code = module_alloc_exec(screen_info.vesapm_size);
56606+ if (!pmi_code)
56607+#elif !defined(CONFIG_PAX_KERNEXEC)
56608+ if (0)
56609+#endif
56610+
56611+#endif
56612+ screen_info.vesapm_seg = 0;
56613+
56614 if (screen_info.vesapm_seg) {
56615- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
56616- screen_info.vesapm_seg,screen_info.vesapm_off);
56617+ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
56618+ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
56619 }
56620
56621 if (screen_info.vesapm_seg < 0xc000)
56622@@ -322,9 +332,25 @@ static int vesafb_probe(struct platform_device *dev)
56623
56624 if (ypan || pmi_setpal) {
56625 unsigned short *pmi_base;
56626+
56627 pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
56628- pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
56629- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
56630+
56631+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56632+ pax_open_kernel();
56633+ memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
56634+#else
56635+ pmi_code = pmi_base;
56636+#endif
56637+
56638+ pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
56639+ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
56640+
56641+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56642+ pmi_start = ktva_ktla(pmi_start);
56643+ pmi_pal = ktva_ktla(pmi_pal);
56644+ pax_close_kernel();
56645+#endif
56646+
56647 printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
56648 if (pmi_base[3]) {
56649 printk(KERN_INFO "vesafb: pmi: ports = ");
56650@@ -477,8 +503,11 @@ static int vesafb_probe(struct platform_device *dev)
56651 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
56652 (ypan ? FBINFO_HWACCEL_YPAN : 0);
56653
56654- if (!ypan)
56655- info->fbops->fb_pan_display = NULL;
56656+ if (!ypan) {
56657+ pax_open_kernel();
56658+ *(void **)&info->fbops->fb_pan_display = NULL;
56659+ pax_close_kernel();
56660+ }
56661
56662 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
56663 err = -ENOMEM;
56664@@ -492,6 +521,11 @@ static int vesafb_probe(struct platform_device *dev)
56665 fb_info(info, "%s frame buffer device\n", info->fix.id);
56666 return 0;
56667 err:
56668+
56669+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56670+ module_memfree_exec(pmi_code);
56671+#endif
56672+
56673 if (info->screen_base)
56674 iounmap(info->screen_base);
56675 framebuffer_release(info);
56676diff --git a/drivers/video/fbdev/via/via_clock.h b/drivers/video/fbdev/via/via_clock.h
56677index 88714ae..16c2e11 100644
56678--- a/drivers/video/fbdev/via/via_clock.h
56679+++ b/drivers/video/fbdev/via/via_clock.h
56680@@ -56,7 +56,7 @@ struct via_clock {
56681
56682 void (*set_engine_pll_state)(u8 state);
56683 void (*set_engine_pll)(struct via_pll_config config);
56684-};
56685+} __no_const;
56686
56687
56688 static inline u32 get_pll_internal_frequency(u32 ref_freq,
56689diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
56690index 3c14e43..2630570 100644
56691--- a/drivers/video/logo/logo_linux_clut224.ppm
56692+++ b/drivers/video/logo/logo_linux_clut224.ppm
56693@@ -2,1603 +2,1123 @@ P3
56694 # Standard 224-color Linux logo
56695 80 80
56696 255
56697- 0 0 0 0 0 0 0 0 0 0 0 0
56698- 0 0 0 0 0 0 0 0 0 0 0 0
56699- 0 0 0 0 0 0 0 0 0 0 0 0
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59407+4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3
59408+5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4
59409+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
59410+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
59411+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
59412+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
59413+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
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59416+4 4 4 4 4 4
59417diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
59418index 2b8553b..e1a482b 100644
59419--- a/drivers/xen/events/events_base.c
59420+++ b/drivers/xen/events/events_base.c
59421@@ -1564,7 +1564,7 @@ void xen_irq_resume(void)
59422 restore_pirqs();
59423 }
59424
59425-static struct irq_chip xen_dynamic_chip __read_mostly = {
59426+static struct irq_chip xen_dynamic_chip = {
59427 .name = "xen-dyn",
59428
59429 .irq_disable = disable_dynirq,
59430@@ -1578,7 +1578,7 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
59431 .irq_retrigger = retrigger_dynirq,
59432 };
59433
59434-static struct irq_chip xen_pirq_chip __read_mostly = {
59435+static struct irq_chip xen_pirq_chip = {
59436 .name = "xen-pirq",
59437
59438 .irq_startup = startup_pirq,
59439@@ -1598,7 +1598,7 @@ static struct irq_chip xen_pirq_chip __read_mostly = {
59440 .irq_retrigger = retrigger_dynirq,
59441 };
59442
59443-static struct irq_chip xen_percpu_chip __read_mostly = {
59444+static struct irq_chip xen_percpu_chip = {
59445 .name = "xen-percpu",
59446
59447 .irq_disable = disable_dynirq,
59448diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
59449index fef20db..d28b1ab 100644
59450--- a/drivers/xen/xenfs/xenstored.c
59451+++ b/drivers/xen/xenfs/xenstored.c
59452@@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
59453 static int xsd_kva_open(struct inode *inode, struct file *file)
59454 {
59455 file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
59456+#ifdef CONFIG_GRKERNSEC_HIDESYM
59457+ NULL);
59458+#else
59459 xen_store_interface);
59460+#endif
59461+
59462 if (!file->private_data)
59463 return -ENOMEM;
59464 return 0;
59465diff --git a/firmware/Makefile b/firmware/Makefile
59466index e297e1b..6900c31 100644
59467--- a/firmware/Makefile
59468+++ b/firmware/Makefile
59469@@ -35,6 +35,7 @@ fw-shipped-$(CONFIG_BNX2X) += bnx2x/bnx2x-e1-6.2.9.0.fw \
59470 bnx2x/bnx2x-e1h-6.2.9.0.fw \
59471 bnx2x/bnx2x-e2-6.2.9.0.fw
59472 fw-shipped-$(CONFIG_BNX2) += bnx2/bnx2-mips-09-6.2.1a.fw \
59473+ bnx2/bnx2-mips-09-6.2.1b.fw \
59474 bnx2/bnx2-rv2p-09-6.0.17.fw \
59475 bnx2/bnx2-rv2p-09ax-6.0.17.fw \
59476 bnx2/bnx2-mips-06-6.2.1.fw \
59477diff --git a/firmware/WHENCE b/firmware/WHENCE
59478index 0c4d96d..7563083 100644
59479--- a/firmware/WHENCE
59480+++ b/firmware/WHENCE
59481@@ -655,19 +655,20 @@ Driver: BNX2 - Broadcom NetXtremeII
59482 File: bnx2/bnx2-mips-06-6.2.1.fw
59483 File: bnx2/bnx2-rv2p-06-6.0.15.fw
59484 File: bnx2/bnx2-mips-09-6.2.1a.fw
59485+File: bnx2/bnx2-mips-09-6.2.1b.fw
59486 File: bnx2/bnx2-rv2p-09-6.0.17.fw
59487 File: bnx2/bnx2-rv2p-09ax-6.0.17.fw
59488
59489 Licence:
59490-
59491- This file contains firmware data derived from proprietary unpublished
59492- source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
59493-
59494- Permission is hereby granted for the distribution of this firmware data
59495- in hexadecimal or equivalent format, provided this copyright notice is
59496- accompanying it.
59497-
59498-Found in hex form in kernel source.
59499+
59500+ This file contains firmware data derived from proprietary unpublished
59501+ source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
59502+
59503+ Permission is hereby granted for the distribution of this firmware data
59504+ in hexadecimal or equivalent format, provided this copyright notice is
59505+ accompanying it.
59506+
59507+Found in hex form in kernel source.
59508
59509 --------------------------------------------------------------------------
59510
59511diff --git a/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
59512new file mode 100644
59513index 0000000..43d7c4f
59514--- /dev/null
59515+++ b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
59516@@ -0,0 +1,6496 @@
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65801+:1088B000AF820030240D00013C0E800035D10A004B
65802+:1088C000A38D001CAF8000248E2400248F850024FB
65803+:1088D000240D0008AF800020AF8000283C01080074
65804+:1088E000A42D3FC63C010800A4203FDA0E000B83F4
65805+:1088F000000030219228003C8FBF00188FB1001477
65806+:108900008FB0001000086142AF82002C27BD00200C
65807+:1089100003E000083182000190B80032240E00010B
65808+:10892000330F00FF000F2182108E00412419000236
65809+:108930001099006434C40AC03C03800034640A0007
65810+:108940008C8F002415E0001E34660900909F0030D3
65811+:108950002418000533F9003F1338004E24030001AA
65812+:108960008F860020A383001CAF860028AF860024DA
65813+:108970003C0E800035D10A008E2400248F8500240F
65814+:10898000240D00083C010800A42D3FC63C0108004E
65815+:10899000A4203FDA0E000B83000000009228003C68
65816+:1089A0008FBF00188FB100148FB000100008614213
65817+:1089B000AF82002C27BD002003E0000831820001B7
65818+:1089C0008C8A00088C8B00248CD000643C0E8000C4
65819+:1089D00035D10A00014B2823AF900024A380001C4E
65820+:1089E000AF8500288E2400248F8600208F850024E8
65821+:1089F000240D00083C010800A42D3FC63C010800DE
65822+:108A0000A4203FDA0E000B83000000009228003CF7
65823+:108A10008FBF00188FB100148FB0001000086142A2
65824+:108A2000AF82002C27BD002003E000083182000146
65825+:108A300090A200303051003F5224002834C50AC0B3
65826+:108A40008CB000241600002234CB09008CA600480C
65827+:108A50003C0A7FFF3545FFFF00C510243C0E800017
65828+:108A6000AF82002035C509008F8800208CAD0060E2
65829+:108A7000010D602B15800002010020218CA40060F4
65830+:108A80000A000C22AF8400208D02006C0A000BFC4F
65831+:108A90003C0680008C8200488F8600203C097FFFC6
65832+:108AA0003527FFFF004788243C0480082403000189
65833+:108AB000AF910028AC80006CA383001C0A000C302E
65834+:108AC000AF8600248C9F00140A000C22AF9F002068
65835+:108AD0008D6200680A000C6C3C0E800034C4098072
65836+:108AE0008C8900708CA300140123382B10E0000443
65837+:108AF000000000008C8200700A000C6C3C0E8000AC
65838+:108B00008CA200140A000C6C3C0E80008F8500249F
65839+:108B100027BDFFE0AFBF0018AFB1001414A00008DC
65840+:108B2000AFB000103C04800034870A0090E60030AB
65841+:108B30002402000530C3003F106200B934840900EC
65842+:108B40008F91002000A080213C048000348E0A0018
65843+:108B50008DCD00043C0608008CC63FB831A73FFF0E
65844+:108B600000E6602B5580000100E03021938F001C4F
65845+:108B700011E0007800D0282B349F098093F9007C05
65846+:108B800033380002130000792403003400C3102B93
65847+:108B9000144000D90000000000C3302300D0282B6F
65848+:108BA0003C010800A4233FC414A0006E0200182159
65849+:108BB0003C0408008C843FB40064402B5500000145
65850+:108BC000006020213C05800034A90A00912A003C65
65851+:108BD0003C010800AC243FBC31430020146000037A
65852+:108BE0000000482134AB0E008D6900188F88002CDE
65853+:108BF0000128202B1080005F000000003C050800C9
65854+:108C00008CA53FBC00A96821010D602B1180005C80
65855+:108C100000B0702B0109382300E028213C01080036
65856+:108C2000AC273FBC12000003240AFFFC10B0008DEB
65857+:108C30003224000300AA18243C010800A4203FDAD3
65858+:108C40003C010800AC233FBC006028218F84002435
65859+:108C5000120400063C0B80088D6C006C0200202181
65860+:108C6000AF91002025900001AD70006C8F8D002821
65861+:108C700000858823AF91002401A52023AF8400281C
65862+:108C80001220000224070018240700103C18800856
65863+:108C90003706008090CF00683C010800A0273FD82D
65864+:108CA0002407000131EE00FF11C70047000000005B
65865+:108CB00014800018000028213C06800034D109806F
65866+:108CC00034CD010091A600098E2C001824C40001A7
65867+:108CD000000C86023205007F308B007F1165007F1B
65868+:108CE0002407FF803C19800837290080A124004C0C
65869+:108CF0003C0808008D083FD4241800023C010800FD
65870+:108D0000A0384019350F00083C010800AC2F3FD4B3
65871+:108D1000240500103C02800034440A009083003C8B
65872+:108D2000307F002013E0000500A02021240A00016C
65873+:108D30003C010800AC2A3FBC34A400018FBF0018DE
65874+:108D40008FB100148FB000100080102103E00008E4
65875+:108D500027BD00203C010800A4203FC410A0FF94C0
65876+:108D6000020018210A000CC000C018210A000CB72C
65877+:108D7000240300303C0508008CA53FBC00B0702BDC
65878+:108D800011C0FFA8000000003C19080097393FC43B
65879+:108D90000325C0210307782B11E000072CAA00044B
65880+:108DA0003C0360008C625404305F003F17E0FFE337
65881+:108DB000240400422CAA00041140FF9A240400421B
65882+:108DC0000A000D248FBF00181528FFB9000000000D
65883+:108DD0008CCA00183C1F800024020002015F182585
65884+:108DE000ACC3001837F90A00A0C200689329003C00
65885+:108DF0002404000400A01021312800203C010800B8
65886+:108E0000A0244019110000022405001024020001D2
65887+:108E10003C010800AC223FB40A000D1A3C0280005D
65888+:108E20008F8800288C8900600109282B14A000027B
65889+:108E3000010088218C9100603C048000348B0E007E
65890+:108E40008D640018240A000102202821022030210C
65891+:108E5000A38A001C0E000B83022080210A000CA6AE
65892+:108E6000AF82002C00045823122000073164000355
65893+:108E70003C0E800035C7098090ED007C31AC0004C9
65894+:108E800015800019248F00043C010800A4243FDA57
65895+:108E90003C1F080097FF3FDA03E5C82100D9C02B2B
65896+:108EA0001300FF6B8F8400242CA6000514C0FFA3C1
65897+:108EB0002404004230A200031440000200A2182340
65898+:108EC00024A3FFFC3C010800AC233FBC3C0108008C
65899+:108ED000A4203FDA0A000CE70060282100C77024B4
65900+:108EE0000A000D0D01C720263C010800A42F3FDA1F
65901+:108EF0000A000D78000000003C010800AC203FBCD7
65902+:108F00000A000D23240400428F8300283C058000C2
65903+:108F100034AA0A00146000060000102191470030B6
65904+:108F20002406000530E400FF108600030000000066
65905+:108F300003E0000800000000914B0048316900FF89
65906+:108F4000000941C21500FFFA3C0680083C040800F5
65907+:108F500094843FC43C0308008C633FDC3C19080048
65908+:108F60008F393FBC3C0F080095EF3FDA0064C02109
65909+:108F70008CCD00040319702101CF602134AB0E00A9
65910+:108F8000018D282318A0001D00000000914F004C07
65911+:108F90008F8C0034956D001031EE00FF8D89000438
65912+:108FA00001AE30238D8A000030CEFFFF000E290075
65913+:108FB0000125C82100003821014720210325182B55
65914+:108FC0000083C021AD990004AD980000918F000A84
65915+:108FD00001CF6821A18D000A956500128F8A0034A7
65916+:108FE000A5450008954B003825690001A5490038C2
65917+:108FF0009148000D35070008A147000D03E0000867
65918+:109000000000000027BDFFD8AFB000189388001CF7
65919+:109010008FB000143C0A80003C197FFF8F8700242A
65920+:109020003738FFFFAFBF0020AFB1001C355F0A002B
65921+:109030000218182493EB003C00087FC03C02BFFFDD
65922+:10904000006F60252CF000013449FFFF3C1F080031
65923+:109050008FFF3FDC8F9900303C18080097183FD2F3
65924+:1090600001897824001047803C07EFFF3C05F0FFA2
65925+:1090700001E818253C1180003169002034E2FFFF2F
65926+:1090800034ADFFFF362E098027A50010240600020C
65927+:1090900003F96023270B0002354A0E0000621824F2
65928+:1090A0000080802115200002000040218D48001C16
65929+:1090B000A7AB0012058000392407000030E800FF4C
65930+:1090C00000083F00006758253C028008AFAB001441
65931+:1090D000344F008091EA00683C08080091083FD9AD
65932+:1090E0003C09DFFF352CFFFF000AF82B3C0208008B
65933+:1090F00094423FCCA3A80011016CC024001FCF40B4
65934+:10910000031918258FA70010AFA300143C0C08000A
65935+:10911000918C3FDBA7A200168FAB001400ED482412
65936+:109120003C0F01003C0A0FFF012FC82531980003B6
65937+:10913000355FFFFF016D40243C027000033F38247F
65938+:1091400000181E0000E2482501037825AFAF001487
65939+:10915000AFA9001091CC007C0E000092A3AC0015CA
65940+:10916000362D0A0091A6003C30C400201080000675
65941+:10917000260200083C11080096313FC8262EFFFF4A
65942+:109180003C010800A42E3FC88FBF00208FB1001CF7
65943+:109190008FB0001803E0000827BD00288F8B002C3B
65944+:1091A000010B502B5540FFC5240700010A000E0497
65945+:1091B00030E800FF9383001C3C02800027BDFFD8ED
65946+:1091C00034480A0000805021AFBF002034460AC056
65947+:1091D000010028211060000E3444098091070030FE
65948+:1091E000240B00058F89002030EC003F118B000B11
65949+:1091F00000003821AFA900103C0B80088D69006C7D
65950+:10920000AFAA00180E00015AAFA90014A380001CD9
65951+:109210008FBF002003E0000827BD00288D1F0048F5
65952+:109220003C1808008F183FBC8F9900283C027FFF34
65953+:109230008D0800443443FFFFAFA900103C0B8008A9
65954+:109240008D69006C03E370240319782101CF682332
65955+:1092500001A83821AFAA00180E00015AAFA90014C6
65956+:109260000A000E58A380001C3C05800034A60A00AA
65957+:1092700090C7003C3C06080094C63FDA3C02080058
65958+:109280008C423FD430E30020000624001060001E12
65959+:10929000004438253C0880083505008090A300680C
65960+:1092A00000004821240800010000282124040001B6
65961+:1092B0003C0680008CCD017805A0FFFE34CF014034
65962+:1092C000ADE800083C0208008C423FDCA5E5000444
65963+:1092D000A5E40006ADE2000C3C04080090843FD9F0
65964+:1092E0003C03800834790080A1E40012ADE700144B
65965+:1092F000A5E900189338004C3C0E1000A1F8002D91
65966+:1093000003E00008ACCE017834A90E008D28001CC3
65967+:109310003C0C08008D8C3FBC952B0016952A001440
65968+:10932000018648213164FFFF0A000E803145FFFFAE
65969+:109330003C04800034830A009065003C30A2002089
65970+:109340001040001934870E00000040210000382131
65971+:10935000000020213C0680008CC901780520FFFE1A
65972+:1093600034CA014034CF010091EB0009AD48000838
65973+:109370003C0E08008DCE3FDC240DFF91240C0040F4
65974+:109380003C081000A5440004A5470006AD4E000CA3
65975+:10939000A14D0012AD4C0014A5400018A14B002DAA
65976+:1093A00003E00008ACC801788CE8001894E60012CD
65977+:1093B00094E4001030C7FFFF0A000EA93084FFFFBD
65978+:1093C0003C04800034830A009065003C30A20020F9
65979+:1093D0001040002727BDFFF82409000100003821B4
65980+:1093E000240800013C0680008CCA01780540FFFE7D
65981+:1093F0003C0280FF34C40100908D00093C0C080041
65982+:10940000918C4019A3AD00038FAB00003185007F24
65983+:109410003459FFFF01665025AFAA00009083000A6F
65984+:10942000A3A0000200057E00A3A300018FB80000E6
65985+:1094300034CB0140240C30000319702401CF68257F
65986+:10944000AD6D000C27BD0008AD6C0014A5600018C0
65987+:10945000AD690008A56700042409FF80A56800061F
65988+:109460003C081000A169001203E00008ACC80178B4
65989+:1094700034870E008CE9001894E6001294E4001082
65990+:1094800030C8FFFF0A000ECD3087FFFF27BDFFE089
65991+:10949000AFB100143C118000AFB00010AFBF001896
65992+:1094A00036380A00970F0032363001000E000B7F6D
65993+:1094B00031E43FFF8E0E0000240DFF803C042000AD
65994+:1094C00001C25821016D6024000C4940316A007FBF
65995+:1094D000012A4025010438253C048008AE270830C5
65996+:1094E0003486008090C500682403000230A200FF8B
65997+:1094F000104300048F9F00208F990024AC9F0068C8
65998+:10950000AC9900648FBF00188FB100148FB00010A9
65999+:1095100003E0000827BD00203C0A0800254A3A80E5
66000+:109520003C09080025293B103C08080025082F1C91
66001+:109530003C07080024E73BDC3C06080024C639044D
66002+:109540003C05080024A536583C0408002484325CFD
66003+:109550003C030800246339B83C0208002442375415
66004+:109560003C010800AC2A3F983C010800AC293F941C
66005+:109570003C010800AC283F903C010800AC273F9C10
66006+:109580003C010800AC263FAC3C010800AC253FA4E0
66007+:109590003C010800AC243FA03C010800AC233FB0D4
66008+:1095A0003C010800AC223FA803E0000800000000D6
66009+:1095B00080000940800009008008010080080080C8
66010+:1095C00080080000800E00008008008080080000F5
66011+:1095D00080000A8080000A00800009808000090065
66012+:00000001FF
66013diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
66014index eb14e05..5156de7 100644
66015--- a/fs/9p/vfs_addr.c
66016+++ b/fs/9p/vfs_addr.c
66017@@ -187,7 +187,7 @@ static int v9fs_vfs_writepage_locked(struct page *page)
66018
66019 retval = v9fs_file_write_internal(inode,
66020 v9inode->writeback_fid,
66021- (__force const char __user *)buffer,
66022+ (const char __force_user *)buffer,
66023 len, &offset, 0);
66024 if (retval > 0)
66025 retval = 0;
66026diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
66027index 3662f1d..90558b5 100644
66028--- a/fs/9p/vfs_inode.c
66029+++ b/fs/9p/vfs_inode.c
66030@@ -1312,7 +1312,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
66031 void
66032 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
66033 {
66034- char *s = nd_get_link(nd);
66035+ const char *s = nd_get_link(nd);
66036
66037 p9_debug(P9_DEBUG_VFS, " %pd %s\n",
66038 dentry, IS_ERR(s) ? "<error>" : s);
66039diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
66040index 270c481..0d8a962 100644
66041--- a/fs/Kconfig.binfmt
66042+++ b/fs/Kconfig.binfmt
66043@@ -106,7 +106,7 @@ config HAVE_AOUT
66044
66045 config BINFMT_AOUT
66046 tristate "Kernel support for a.out and ECOFF binaries"
66047- depends on HAVE_AOUT
66048+ depends on HAVE_AOUT && BROKEN
66049 ---help---
66050 A.out (Assembler.OUTput) is a set of formats for libraries and
66051 executables used in the earliest versions of UNIX. Linux used
66052diff --git a/fs/afs/inode.c b/fs/afs/inode.c
66053index 8a1d38e..300a14e 100644
66054--- a/fs/afs/inode.c
66055+++ b/fs/afs/inode.c
66056@@ -141,7 +141,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
66057 struct afs_vnode *vnode;
66058 struct super_block *sb;
66059 struct inode *inode;
66060- static atomic_t afs_autocell_ino;
66061+ static atomic_unchecked_t afs_autocell_ino;
66062
66063 _enter("{%x:%u},%*.*s,",
66064 AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode,
66065@@ -154,7 +154,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
66066 data.fid.unique = 0;
66067 data.fid.vnode = 0;
66068
66069- inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino),
66070+ inode = iget5_locked(sb, atomic_inc_return_unchecked(&afs_autocell_ino),
66071 afs_iget5_autocell_test, afs_iget5_set,
66072 &data);
66073 if (!inode) {
66074diff --git a/fs/aio.c b/fs/aio.c
66075index a793f70..46f45af 100644
66076--- a/fs/aio.c
66077+++ b/fs/aio.c
66078@@ -404,7 +404,7 @@ static int aio_setup_ring(struct kioctx *ctx)
66079 size += sizeof(struct io_event) * nr_events;
66080
66081 nr_pages = PFN_UP(size);
66082- if (nr_pages < 0)
66083+ if (nr_pages <= 0)
66084 return -EINVAL;
66085
66086 file = aio_private_file(ctx, nr_pages);
66087diff --git a/fs/attr.c b/fs/attr.c
66088index 6530ced..4a827e2 100644
66089--- a/fs/attr.c
66090+++ b/fs/attr.c
66091@@ -102,6 +102,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
66092 unsigned long limit;
66093
66094 limit = rlimit(RLIMIT_FSIZE);
66095+ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
66096 if (limit != RLIM_INFINITY && offset > limit)
66097 goto out_sig;
66098 if (offset > inode->i_sb->s_maxbytes)
66099diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
66100index 116fd38..c04182da 100644
66101--- a/fs/autofs4/waitq.c
66102+++ b/fs/autofs4/waitq.c
66103@@ -59,7 +59,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
66104 {
66105 unsigned long sigpipe, flags;
66106 mm_segment_t fs;
66107- const char *data = (const char *)addr;
66108+ const char __user *data = (const char __force_user *)addr;
66109 ssize_t wr = 0;
66110
66111 sigpipe = sigismember(&current->pending.signal, SIGPIPE);
66112@@ -340,6 +340,10 @@ static int validate_request(struct autofs_wait_queue **wait,
66113 return 1;
66114 }
66115
66116+#ifdef CONFIG_GRKERNSEC_HIDESYM
66117+static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
66118+#endif
66119+
66120 int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
66121 enum autofs_notify notify)
66122 {
66123@@ -385,7 +389,12 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
66124
66125 /* If this is a direct mount request create a dummy name */
66126 if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
66127+#ifdef CONFIG_GRKERNSEC_HIDESYM
66128+ /* this name does get written to userland via autofs4_write() */
66129+ qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
66130+#else
66131 qstr.len = sprintf(name, "%p", dentry);
66132+#endif
66133 else {
66134 qstr.len = autofs4_getpath(sbi, dentry, &name);
66135 if (!qstr.len) {
66136diff --git a/fs/befs/endian.h b/fs/befs/endian.h
66137index 2722387..56059b5 100644
66138--- a/fs/befs/endian.h
66139+++ b/fs/befs/endian.h
66140@@ -11,7 +11,7 @@
66141
66142 #include <asm/byteorder.h>
66143
66144-static inline u64
66145+static inline u64 __intentional_overflow(-1)
66146 fs64_to_cpu(const struct super_block *sb, fs64 n)
66147 {
66148 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66149@@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
66150 return (__force fs64)cpu_to_be64(n);
66151 }
66152
66153-static inline u32
66154+static inline u32 __intentional_overflow(-1)
66155 fs32_to_cpu(const struct super_block *sb, fs32 n)
66156 {
66157 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66158@@ -47,7 +47,7 @@ cpu_to_fs32(const struct super_block *sb, u32 n)
66159 return (__force fs32)cpu_to_be32(n);
66160 }
66161
66162-static inline u16
66163+static inline u16 __intentional_overflow(-1)
66164 fs16_to_cpu(const struct super_block *sb, fs16 n)
66165 {
66166 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66167diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
66168index 4c55668..eeae150 100644
66169--- a/fs/binfmt_aout.c
66170+++ b/fs/binfmt_aout.c
66171@@ -16,6 +16,7 @@
66172 #include <linux/string.h>
66173 #include <linux/fs.h>
66174 #include <linux/file.h>
66175+#include <linux/security.h>
66176 #include <linux/stat.h>
66177 #include <linux/fcntl.h>
66178 #include <linux/ptrace.h>
66179@@ -58,6 +59,8 @@ static int aout_core_dump(struct coredump_params *cprm)
66180 #endif
66181 # define START_STACK(u) ((void __user *)u.start_stack)
66182
66183+ memset(&dump, 0, sizeof(dump));
66184+
66185 fs = get_fs();
66186 set_fs(KERNEL_DS);
66187 has_dumped = 1;
66188@@ -68,10 +71,12 @@ static int aout_core_dump(struct coredump_params *cprm)
66189
66190 /* If the size of the dump file exceeds the rlimit, then see what would happen
66191 if we wrote the stack, but not the data area. */
66192+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
66193 if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
66194 dump.u_dsize = 0;
66195
66196 /* Make sure we have enough room to write the stack and data areas. */
66197+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
66198 if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
66199 dump.u_ssize = 0;
66200
66201@@ -232,6 +237,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
66202 rlim = rlimit(RLIMIT_DATA);
66203 if (rlim >= RLIM_INFINITY)
66204 rlim = ~0;
66205+
66206+ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
66207 if (ex.a_data + ex.a_bss > rlim)
66208 return -ENOMEM;
66209
66210@@ -261,6 +268,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
66211
66212 install_exec_creds(bprm);
66213
66214+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66215+ current->mm->pax_flags = 0UL;
66216+#endif
66217+
66218+#ifdef CONFIG_PAX_PAGEEXEC
66219+ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
66220+ current->mm->pax_flags |= MF_PAX_PAGEEXEC;
66221+
66222+#ifdef CONFIG_PAX_EMUTRAMP
66223+ if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
66224+ current->mm->pax_flags |= MF_PAX_EMUTRAMP;
66225+#endif
66226+
66227+#ifdef CONFIG_PAX_MPROTECT
66228+ if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
66229+ current->mm->pax_flags |= MF_PAX_MPROTECT;
66230+#endif
66231+
66232+ }
66233+#endif
66234+
66235 if (N_MAGIC(ex) == OMAGIC) {
66236 unsigned long text_addr, map_size;
66237 loff_t pos;
66238@@ -312,7 +340,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
66239 return error;
66240
66241 error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
66242- PROT_READ | PROT_WRITE | PROT_EXEC,
66243+ PROT_READ | PROT_WRITE,
66244 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
66245 fd_offset + ex.a_text);
66246 if (error != N_DATADDR(ex))
66247diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
66248index d925f55..d31f527 100644
66249--- a/fs/binfmt_elf.c
66250+++ b/fs/binfmt_elf.c
66251@@ -34,6 +34,7 @@
66252 #include <linux/utsname.h>
66253 #include <linux/coredump.h>
66254 #include <linux/sched.h>
66255+#include <linux/xattr.h>
66256 #include <asm/uaccess.h>
66257 #include <asm/param.h>
66258 #include <asm/page.h>
66259@@ -47,7 +48,7 @@
66260
66261 static int load_elf_binary(struct linux_binprm *bprm);
66262 static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
66263- int, int, unsigned long);
66264+ int, int, unsigned long) __intentional_overflow(-1);
66265
66266 #ifdef CONFIG_USELIB
66267 static int load_elf_library(struct file *);
66268@@ -65,6 +66,14 @@ static int elf_core_dump(struct coredump_params *cprm);
66269 #define elf_core_dump NULL
66270 #endif
66271
66272+#ifdef CONFIG_PAX_MPROTECT
66273+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
66274+#endif
66275+
66276+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
66277+static void elf_handle_mmap(struct file *file);
66278+#endif
66279+
66280 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
66281 #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
66282 #else
66283@@ -84,6 +93,15 @@ static struct linux_binfmt elf_format = {
66284 .load_binary = load_elf_binary,
66285 .load_shlib = load_elf_library,
66286 .core_dump = elf_core_dump,
66287+
66288+#ifdef CONFIG_PAX_MPROTECT
66289+ .handle_mprotect= elf_handle_mprotect,
66290+#endif
66291+
66292+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
66293+ .handle_mmap = elf_handle_mmap,
66294+#endif
66295+
66296 .min_coredump = ELF_EXEC_PAGESIZE,
66297 };
66298
66299@@ -91,6 +109,8 @@ static struct linux_binfmt elf_format = {
66300
66301 static int set_brk(unsigned long start, unsigned long end)
66302 {
66303+ unsigned long e = end;
66304+
66305 start = ELF_PAGEALIGN(start);
66306 end = ELF_PAGEALIGN(end);
66307 if (end > start) {
66308@@ -99,7 +119,7 @@ static int set_brk(unsigned long start, unsigned long end)
66309 if (BAD_ADDR(addr))
66310 return addr;
66311 }
66312- current->mm->start_brk = current->mm->brk = end;
66313+ current->mm->start_brk = current->mm->brk = e;
66314 return 0;
66315 }
66316
66317@@ -160,12 +180,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66318 elf_addr_t __user *u_rand_bytes;
66319 const char *k_platform = ELF_PLATFORM;
66320 const char *k_base_platform = ELF_BASE_PLATFORM;
66321- unsigned char k_rand_bytes[16];
66322+ u32 k_rand_bytes[4];
66323 int items;
66324 elf_addr_t *elf_info;
66325 int ei_index = 0;
66326 const struct cred *cred = current_cred();
66327 struct vm_area_struct *vma;
66328+ unsigned long saved_auxv[AT_VECTOR_SIZE];
66329
66330 /*
66331 * In some cases (e.g. Hyper-Threading), we want to avoid L1
66332@@ -207,8 +228,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66333 * Generate 16 random bytes for userspace PRNG seeding.
66334 */
66335 get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
66336- u_rand_bytes = (elf_addr_t __user *)
66337- STACK_ALLOC(p, sizeof(k_rand_bytes));
66338+ prandom_seed(k_rand_bytes[0] ^ prandom_u32());
66339+ prandom_seed(k_rand_bytes[1] ^ prandom_u32());
66340+ prandom_seed(k_rand_bytes[2] ^ prandom_u32());
66341+ prandom_seed(k_rand_bytes[3] ^ prandom_u32());
66342+ p = STACK_ROUND(p, sizeof(k_rand_bytes));
66343+ u_rand_bytes = (elf_addr_t __user *) p;
66344 if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
66345 return -EFAULT;
66346
66347@@ -323,9 +348,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66348 return -EFAULT;
66349 current->mm->env_end = p;
66350
66351+ memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
66352+
66353 /* Put the elf_info on the stack in the right place. */
66354 sp = (elf_addr_t __user *)envp + 1;
66355- if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
66356+ if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
66357 return -EFAULT;
66358 return 0;
66359 }
66360@@ -514,14 +541,14 @@ static inline int arch_check_elf(struct elfhdr *ehdr, bool has_interp,
66361 an ELF header */
66362
66363 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66364- struct file *interpreter, unsigned long *interp_map_addr,
66365+ struct file *interpreter,
66366 unsigned long no_base, struct elf_phdr *interp_elf_phdata)
66367 {
66368 struct elf_phdr *eppnt;
66369- unsigned long load_addr = 0;
66370+ unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
66371 int load_addr_set = 0;
66372 unsigned long last_bss = 0, elf_bss = 0;
66373- unsigned long error = ~0UL;
66374+ unsigned long error = -EINVAL;
66375 unsigned long total_size;
66376 int i;
66377
66378@@ -541,6 +568,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66379 goto out;
66380 }
66381
66382+#ifdef CONFIG_PAX_SEGMEXEC
66383+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
66384+ pax_task_size = SEGMEXEC_TASK_SIZE;
66385+#endif
66386+
66387 eppnt = interp_elf_phdata;
66388 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
66389 if (eppnt->p_type == PT_LOAD) {
66390@@ -564,8 +596,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66391 map_addr = elf_map(interpreter, load_addr + vaddr,
66392 eppnt, elf_prot, elf_type, total_size);
66393 total_size = 0;
66394- if (!*interp_map_addr)
66395- *interp_map_addr = map_addr;
66396 error = map_addr;
66397 if (BAD_ADDR(map_addr))
66398 goto out;
66399@@ -584,8 +614,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66400 k = load_addr + eppnt->p_vaddr;
66401 if (BAD_ADDR(k) ||
66402 eppnt->p_filesz > eppnt->p_memsz ||
66403- eppnt->p_memsz > TASK_SIZE ||
66404- TASK_SIZE - eppnt->p_memsz < k) {
66405+ eppnt->p_memsz > pax_task_size ||
66406+ pax_task_size - eppnt->p_memsz < k) {
66407 error = -ENOMEM;
66408 goto out;
66409 }
66410@@ -624,9 +654,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66411 elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
66412
66413 /* Map the last of the bss segment */
66414- error = vm_brk(elf_bss, last_bss - elf_bss);
66415- if (BAD_ADDR(error))
66416- goto out;
66417+ if (last_bss > elf_bss) {
66418+ error = vm_brk(elf_bss, last_bss - elf_bss);
66419+ if (BAD_ADDR(error))
66420+ goto out;
66421+ }
66422 }
66423
66424 error = load_addr;
66425@@ -634,6 +666,336 @@ out:
66426 return error;
66427 }
66428
66429+#ifdef CONFIG_PAX_PT_PAX_FLAGS
66430+#ifdef CONFIG_PAX_SOFTMODE
66431+static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
66432+{
66433+ unsigned long pax_flags = 0UL;
66434+
66435+#ifdef CONFIG_PAX_PAGEEXEC
66436+ if (elf_phdata->p_flags & PF_PAGEEXEC)
66437+ pax_flags |= MF_PAX_PAGEEXEC;
66438+#endif
66439+
66440+#ifdef CONFIG_PAX_SEGMEXEC
66441+ if (elf_phdata->p_flags & PF_SEGMEXEC)
66442+ pax_flags |= MF_PAX_SEGMEXEC;
66443+#endif
66444+
66445+#ifdef CONFIG_PAX_EMUTRAMP
66446+ if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
66447+ pax_flags |= MF_PAX_EMUTRAMP;
66448+#endif
66449+
66450+#ifdef CONFIG_PAX_MPROTECT
66451+ if (elf_phdata->p_flags & PF_MPROTECT)
66452+ pax_flags |= MF_PAX_MPROTECT;
66453+#endif
66454+
66455+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66456+ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
66457+ pax_flags |= MF_PAX_RANDMMAP;
66458+#endif
66459+
66460+ return pax_flags;
66461+}
66462+#endif
66463+
66464+static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
66465+{
66466+ unsigned long pax_flags = 0UL;
66467+
66468+#ifdef CONFIG_PAX_PAGEEXEC
66469+ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
66470+ pax_flags |= MF_PAX_PAGEEXEC;
66471+#endif
66472+
66473+#ifdef CONFIG_PAX_SEGMEXEC
66474+ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
66475+ pax_flags |= MF_PAX_SEGMEXEC;
66476+#endif
66477+
66478+#ifdef CONFIG_PAX_EMUTRAMP
66479+ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
66480+ pax_flags |= MF_PAX_EMUTRAMP;
66481+#endif
66482+
66483+#ifdef CONFIG_PAX_MPROTECT
66484+ if (!(elf_phdata->p_flags & PF_NOMPROTECT))
66485+ pax_flags |= MF_PAX_MPROTECT;
66486+#endif
66487+
66488+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66489+ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
66490+ pax_flags |= MF_PAX_RANDMMAP;
66491+#endif
66492+
66493+ return pax_flags;
66494+}
66495+#endif
66496+
66497+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
66498+#ifdef CONFIG_PAX_SOFTMODE
66499+static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
66500+{
66501+ unsigned long pax_flags = 0UL;
66502+
66503+#ifdef CONFIG_PAX_PAGEEXEC
66504+ if (pax_flags_softmode & MF_PAX_PAGEEXEC)
66505+ pax_flags |= MF_PAX_PAGEEXEC;
66506+#endif
66507+
66508+#ifdef CONFIG_PAX_SEGMEXEC
66509+ if (pax_flags_softmode & MF_PAX_SEGMEXEC)
66510+ pax_flags |= MF_PAX_SEGMEXEC;
66511+#endif
66512+
66513+#ifdef CONFIG_PAX_EMUTRAMP
66514+ if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
66515+ pax_flags |= MF_PAX_EMUTRAMP;
66516+#endif
66517+
66518+#ifdef CONFIG_PAX_MPROTECT
66519+ if (pax_flags_softmode & MF_PAX_MPROTECT)
66520+ pax_flags |= MF_PAX_MPROTECT;
66521+#endif
66522+
66523+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66524+ if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
66525+ pax_flags |= MF_PAX_RANDMMAP;
66526+#endif
66527+
66528+ return pax_flags;
66529+}
66530+#endif
66531+
66532+static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
66533+{
66534+ unsigned long pax_flags = 0UL;
66535+
66536+#ifdef CONFIG_PAX_PAGEEXEC
66537+ if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
66538+ pax_flags |= MF_PAX_PAGEEXEC;
66539+#endif
66540+
66541+#ifdef CONFIG_PAX_SEGMEXEC
66542+ if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
66543+ pax_flags |= MF_PAX_SEGMEXEC;
66544+#endif
66545+
66546+#ifdef CONFIG_PAX_EMUTRAMP
66547+ if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
66548+ pax_flags |= MF_PAX_EMUTRAMP;
66549+#endif
66550+
66551+#ifdef CONFIG_PAX_MPROTECT
66552+ if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
66553+ pax_flags |= MF_PAX_MPROTECT;
66554+#endif
66555+
66556+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66557+ if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
66558+ pax_flags |= MF_PAX_RANDMMAP;
66559+#endif
66560+
66561+ return pax_flags;
66562+}
66563+#endif
66564+
66565+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66566+static unsigned long pax_parse_defaults(void)
66567+{
66568+ unsigned long pax_flags = 0UL;
66569+
66570+#ifdef CONFIG_PAX_SOFTMODE
66571+ if (pax_softmode)
66572+ return pax_flags;
66573+#endif
66574+
66575+#ifdef CONFIG_PAX_PAGEEXEC
66576+ pax_flags |= MF_PAX_PAGEEXEC;
66577+#endif
66578+
66579+#ifdef CONFIG_PAX_SEGMEXEC
66580+ pax_flags |= MF_PAX_SEGMEXEC;
66581+#endif
66582+
66583+#ifdef CONFIG_PAX_MPROTECT
66584+ pax_flags |= MF_PAX_MPROTECT;
66585+#endif
66586+
66587+#ifdef CONFIG_PAX_RANDMMAP
66588+ if (randomize_va_space)
66589+ pax_flags |= MF_PAX_RANDMMAP;
66590+#endif
66591+
66592+ return pax_flags;
66593+}
66594+
66595+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
66596+{
66597+ unsigned long pax_flags = PAX_PARSE_FLAGS_FALLBACK;
66598+
66599+#ifdef CONFIG_PAX_EI_PAX
66600+
66601+#ifdef CONFIG_PAX_SOFTMODE
66602+ if (pax_softmode)
66603+ return pax_flags;
66604+#endif
66605+
66606+ pax_flags = 0UL;
66607+
66608+#ifdef CONFIG_PAX_PAGEEXEC
66609+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
66610+ pax_flags |= MF_PAX_PAGEEXEC;
66611+#endif
66612+
66613+#ifdef CONFIG_PAX_SEGMEXEC
66614+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
66615+ pax_flags |= MF_PAX_SEGMEXEC;
66616+#endif
66617+
66618+#ifdef CONFIG_PAX_EMUTRAMP
66619+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
66620+ pax_flags |= MF_PAX_EMUTRAMP;
66621+#endif
66622+
66623+#ifdef CONFIG_PAX_MPROTECT
66624+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
66625+ pax_flags |= MF_PAX_MPROTECT;
66626+#endif
66627+
66628+#ifdef CONFIG_PAX_ASLR
66629+ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
66630+ pax_flags |= MF_PAX_RANDMMAP;
66631+#endif
66632+
66633+#endif
66634+
66635+ return pax_flags;
66636+
66637+}
66638+
66639+static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
66640+{
66641+
66642+#ifdef CONFIG_PAX_PT_PAX_FLAGS
66643+ unsigned long i;
66644+
66645+ for (i = 0UL; i < elf_ex->e_phnum; i++)
66646+ if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
66647+ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
66648+ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
66649+ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
66650+ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
66651+ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
66652+ return PAX_PARSE_FLAGS_FALLBACK;
66653+
66654+#ifdef CONFIG_PAX_SOFTMODE
66655+ if (pax_softmode)
66656+ return pax_parse_pt_pax_softmode(&elf_phdata[i]);
66657+ else
66658+#endif
66659+
66660+ return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
66661+ break;
66662+ }
66663+#endif
66664+
66665+ return PAX_PARSE_FLAGS_FALLBACK;
66666+}
66667+
66668+static unsigned long pax_parse_xattr_pax(struct file * const file)
66669+{
66670+
66671+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
66672+ ssize_t xattr_size, i;
66673+ unsigned char xattr_value[sizeof("pemrs") - 1];
66674+ unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
66675+
66676+ xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
66677+ if (xattr_size < 0 || xattr_size > sizeof xattr_value)
66678+ return PAX_PARSE_FLAGS_FALLBACK;
66679+
66680+ for (i = 0; i < xattr_size; i++)
66681+ switch (xattr_value[i]) {
66682+ default:
66683+ return PAX_PARSE_FLAGS_FALLBACK;
66684+
66685+#define parse_flag(option1, option2, flag) \
66686+ case option1: \
66687+ if (pax_flags_hardmode & MF_PAX_##flag) \
66688+ return PAX_PARSE_FLAGS_FALLBACK;\
66689+ pax_flags_hardmode |= MF_PAX_##flag; \
66690+ break; \
66691+ case option2: \
66692+ if (pax_flags_softmode & MF_PAX_##flag) \
66693+ return PAX_PARSE_FLAGS_FALLBACK;\
66694+ pax_flags_softmode |= MF_PAX_##flag; \
66695+ break;
66696+
66697+ parse_flag('p', 'P', PAGEEXEC);
66698+ parse_flag('e', 'E', EMUTRAMP);
66699+ parse_flag('m', 'M', MPROTECT);
66700+ parse_flag('r', 'R', RANDMMAP);
66701+ parse_flag('s', 'S', SEGMEXEC);
66702+
66703+#undef parse_flag
66704+ }
66705+
66706+ if (pax_flags_hardmode & pax_flags_softmode)
66707+ return PAX_PARSE_FLAGS_FALLBACK;
66708+
66709+#ifdef CONFIG_PAX_SOFTMODE
66710+ if (pax_softmode)
66711+ return pax_parse_xattr_pax_softmode(pax_flags_softmode);
66712+ else
66713+#endif
66714+
66715+ return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
66716+#else
66717+ return PAX_PARSE_FLAGS_FALLBACK;
66718+#endif
66719+
66720+}
66721+
66722+static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
66723+{
66724+ unsigned long pax_flags, ei_pax_flags, pt_pax_flags, xattr_pax_flags;
66725+
66726+ pax_flags = pax_parse_defaults();
66727+ ei_pax_flags = pax_parse_ei_pax(elf_ex);
66728+ pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
66729+ xattr_pax_flags = pax_parse_xattr_pax(file);
66730+
66731+ if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
66732+ xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
66733+ pt_pax_flags != xattr_pax_flags)
66734+ return -EINVAL;
66735+ if (xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66736+ pax_flags = xattr_pax_flags;
66737+ else if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66738+ pax_flags = pt_pax_flags;
66739+ else if (ei_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66740+ pax_flags = ei_pax_flags;
66741+
66742+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
66743+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66744+ if ((__supported_pte_mask & _PAGE_NX))
66745+ pax_flags &= ~MF_PAX_SEGMEXEC;
66746+ else
66747+ pax_flags &= ~MF_PAX_PAGEEXEC;
66748+ }
66749+#endif
66750+
66751+ if (0 > pax_check_flags(&pax_flags))
66752+ return -EINVAL;
66753+
66754+ current->mm->pax_flags = pax_flags;
66755+ return 0;
66756+}
66757+#endif
66758+
66759 /*
66760 * These are the functions used to load ELF style executables and shared
66761 * libraries. There is no binary dependent code anywhere else.
66762@@ -647,6 +1009,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
66763 {
66764 unsigned long random_variable = 0;
66765
66766+#ifdef CONFIG_PAX_RANDUSTACK
66767+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
66768+ return stack_top - current->mm->delta_stack;
66769+#endif
66770+
66771 if ((current->flags & PF_RANDOMIZE) &&
66772 !(current->personality & ADDR_NO_RANDOMIZE)) {
66773 random_variable = (unsigned long) get_random_int();
66774@@ -666,7 +1033,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
66775 unsigned long load_addr = 0, load_bias = 0;
66776 int load_addr_set = 0;
66777 char * elf_interpreter = NULL;
66778- unsigned long error;
66779+ unsigned long error = 0;
66780 struct elf_phdr *elf_ppnt, *elf_phdata, *interp_elf_phdata = NULL;
66781 unsigned long elf_bss, elf_brk;
66782 int retval, i;
66783@@ -681,6 +1048,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
66784 struct elfhdr interp_elf_ex;
66785 } *loc;
66786 struct arch_elf_state arch_state = INIT_ARCH_ELF_STATE;
66787+ unsigned long pax_task_size;
66788
66789 loc = kmalloc(sizeof(*loc), GFP_KERNEL);
66790 if (!loc) {
66791@@ -839,6 +1207,77 @@ static int load_elf_binary(struct linux_binprm *bprm)
66792 /* Do this immediately, since STACK_TOP as used in setup_arg_pages
66793 may depend on the personality. */
66794 SET_PERSONALITY2(loc->elf_ex, &arch_state);
66795+
66796+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66797+ current->mm->pax_flags = 0UL;
66798+#endif
66799+
66800+#ifdef CONFIG_PAX_DLRESOLVE
66801+ current->mm->call_dl_resolve = 0UL;
66802+#endif
66803+
66804+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
66805+ current->mm->call_syscall = 0UL;
66806+#endif
66807+
66808+#ifdef CONFIG_PAX_ASLR
66809+ current->mm->delta_mmap = 0UL;
66810+ current->mm->delta_stack = 0UL;
66811+#endif
66812+
66813+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66814+ if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
66815+ send_sig(SIGKILL, current, 0);
66816+ goto out_free_dentry;
66817+ }
66818+#endif
66819+
66820+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
66821+ pax_set_initial_flags(bprm);
66822+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
66823+ if (pax_set_initial_flags_func)
66824+ (pax_set_initial_flags_func)(bprm);
66825+#endif
66826+
66827+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
66828+ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
66829+ current->mm->context.user_cs_limit = PAGE_SIZE;
66830+ current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
66831+ }
66832+#endif
66833+
66834+#ifdef CONFIG_PAX_SEGMEXEC
66835+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
66836+ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
66837+ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
66838+ pax_task_size = SEGMEXEC_TASK_SIZE;
66839+ current->mm->def_flags |= VM_NOHUGEPAGE;
66840+ } else
66841+#endif
66842+
66843+ pax_task_size = TASK_SIZE;
66844+
66845+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
66846+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66847+ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
66848+ put_cpu();
66849+ }
66850+#endif
66851+
66852+#ifdef CONFIG_PAX_ASLR
66853+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
66854+ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
66855+ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
66856+ }
66857+#endif
66858+
66859+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
66860+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66861+ executable_stack = EXSTACK_DISABLE_X;
66862+ current->personality &= ~READ_IMPLIES_EXEC;
66863+ } else
66864+#endif
66865+
66866 if (elf_read_implies_exec(loc->elf_ex, executable_stack))
66867 current->personality |= READ_IMPLIES_EXEC;
66868
66869@@ -925,12 +1364,21 @@ static int load_elf_binary(struct linux_binprm *bprm)
66870 #else
66871 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
66872 #endif
66873- total_size = total_mapping_size(elf_phdata,
66874- loc->elf_ex.e_phnum);
66875- if (!total_size) {
66876- error = -EINVAL;
66877- goto out_free_dentry;
66878+
66879+#ifdef CONFIG_PAX_RANDMMAP
66880+ /* PaX: randomize base address at the default exe base if requested */
66881+ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
66882+#ifdef CONFIG_SPARC64
66883+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
66884+#else
66885+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
66886+#endif
66887+ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
66888+ elf_flags |= MAP_FIXED;
66889 }
66890+#endif
66891+
66892+ total_size = total_mapping_size(elf_phdata, loc->elf_ex.e_phnum);
66893 }
66894
66895 error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
66896@@ -962,9 +1410,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
66897 * allowed task size. Note that p_filesz must always be
66898 * <= p_memsz so it is only necessary to check p_memsz.
66899 */
66900- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
66901- elf_ppnt->p_memsz > TASK_SIZE ||
66902- TASK_SIZE - elf_ppnt->p_memsz < k) {
66903+ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
66904+ elf_ppnt->p_memsz > pax_task_size ||
66905+ pax_task_size - elf_ppnt->p_memsz < k) {
66906 /* set_brk can never work. Avoid overflows. */
66907 retval = -EINVAL;
66908 goto out_free_dentry;
66909@@ -1000,16 +1448,43 @@ static int load_elf_binary(struct linux_binprm *bprm)
66910 if (retval)
66911 goto out_free_dentry;
66912 if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
66913- retval = -EFAULT; /* Nobody gets to see this, but.. */
66914- goto out_free_dentry;
66915+ /*
66916+ * This bss-zeroing can fail if the ELF
66917+ * file specifies odd protections. So
66918+ * we don't check the return value
66919+ */
66920 }
66921
66922+#ifdef CONFIG_PAX_RANDMMAP
66923+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
66924+ unsigned long start, size, flags;
66925+ vm_flags_t vm_flags;
66926+
66927+ start = ELF_PAGEALIGN(elf_brk);
66928+ size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
66929+ flags = MAP_FIXED | MAP_PRIVATE;
66930+ vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
66931+
66932+ down_write(&current->mm->mmap_sem);
66933+ start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
66934+ retval = -ENOMEM;
66935+ if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
66936+// if (current->personality & ADDR_NO_RANDOMIZE)
66937+// vm_flags |= VM_READ | VM_MAYREAD;
66938+ start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
66939+ retval = IS_ERR_VALUE(start) ? start : 0;
66940+ }
66941+ up_write(&current->mm->mmap_sem);
66942+ if (retval == 0)
66943+ retval = set_brk(start + size, start + size + PAGE_SIZE);
66944+ if (retval < 0)
66945+ goto out_free_dentry;
66946+ }
66947+#endif
66948+
66949 if (elf_interpreter) {
66950- unsigned long interp_map_addr = 0;
66951-
66952 elf_entry = load_elf_interp(&loc->interp_elf_ex,
66953 interpreter,
66954- &interp_map_addr,
66955 load_bias, interp_elf_phdata);
66956 if (!IS_ERR((void *)elf_entry)) {
66957 /*
66958@@ -1237,7 +1712,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
66959 * Decide what to dump of a segment, part, all or none.
66960 */
66961 static unsigned long vma_dump_size(struct vm_area_struct *vma,
66962- unsigned long mm_flags)
66963+ unsigned long mm_flags, long signr)
66964 {
66965 #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
66966
66967@@ -1275,7 +1750,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
66968 if (vma->vm_file == NULL)
66969 return 0;
66970
66971- if (FILTER(MAPPED_PRIVATE))
66972+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
66973 goto whole;
66974
66975 /*
66976@@ -1482,9 +1957,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
66977 {
66978 elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
66979 int i = 0;
66980- do
66981+ do {
66982 i += 2;
66983- while (auxv[i - 2] != AT_NULL);
66984+ } while (auxv[i - 2] != AT_NULL);
66985 fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
66986 }
66987
66988@@ -1493,7 +1968,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
66989 {
66990 mm_segment_t old_fs = get_fs();
66991 set_fs(KERNEL_DS);
66992- copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
66993+ copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
66994 set_fs(old_fs);
66995 fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
66996 }
66997@@ -2213,7 +2688,7 @@ static int elf_core_dump(struct coredump_params *cprm)
66998 vma = next_vma(vma, gate_vma)) {
66999 unsigned long dump_size;
67000
67001- dump_size = vma_dump_size(vma, cprm->mm_flags);
67002+ dump_size = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
67003 vma_filesz[i++] = dump_size;
67004 vma_data_size += dump_size;
67005 }
67006@@ -2321,6 +2796,167 @@ out:
67007
67008 #endif /* CONFIG_ELF_CORE */
67009
67010+#ifdef CONFIG_PAX_MPROTECT
67011+/* PaX: non-PIC ELF libraries need relocations on their executable segments
67012+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
67013+ * we'll remove VM_MAYWRITE for good on RELRO segments.
67014+ *
67015+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
67016+ * basis because we want to allow the common case and not the special ones.
67017+ */
67018+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
67019+{
67020+ struct elfhdr elf_h;
67021+ struct elf_phdr elf_p;
67022+ unsigned long i;
67023+ unsigned long oldflags;
67024+ bool is_textrel_rw, is_textrel_rx, is_relro;
67025+
67026+ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT) || !vma->vm_file)
67027+ return;
67028+
67029+ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
67030+ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
67031+
67032+#ifdef CONFIG_PAX_ELFRELOCS
67033+ /* possible TEXTREL */
67034+ is_textrel_rw = !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
67035+ is_textrel_rx = vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
67036+#else
67037+ is_textrel_rw = false;
67038+ is_textrel_rx = false;
67039+#endif
67040+
67041+ /* possible RELRO */
67042+ is_relro = vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
67043+
67044+ if (!is_textrel_rw && !is_textrel_rx && !is_relro)
67045+ return;
67046+
67047+ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
67048+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
67049+
67050+#ifdef CONFIG_PAX_ETEXECRELOCS
67051+ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
67052+#else
67053+ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
67054+#endif
67055+
67056+ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
67057+ !elf_check_arch(&elf_h) ||
67058+ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
67059+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
67060+ return;
67061+
67062+ for (i = 0UL; i < elf_h.e_phnum; i++) {
67063+ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
67064+ return;
67065+ switch (elf_p.p_type) {
67066+ case PT_DYNAMIC:
67067+ if (!is_textrel_rw && !is_textrel_rx)
67068+ continue;
67069+ i = 0UL;
67070+ while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
67071+ elf_dyn dyn;
67072+
67073+ if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
67074+ break;
67075+ if (dyn.d_tag == DT_NULL)
67076+ break;
67077+ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
67078+ gr_log_textrel(vma);
67079+ if (is_textrel_rw)
67080+ vma->vm_flags |= VM_MAYWRITE;
67081+ else
67082+ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
67083+ vma->vm_flags &= ~VM_MAYWRITE;
67084+ break;
67085+ }
67086+ i++;
67087+ }
67088+ is_textrel_rw = false;
67089+ is_textrel_rx = false;
67090+ continue;
67091+
67092+ case PT_GNU_RELRO:
67093+ if (!is_relro)
67094+ continue;
67095+ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
67096+ vma->vm_flags &= ~VM_MAYWRITE;
67097+ is_relro = false;
67098+ continue;
67099+
67100+#ifdef CONFIG_PAX_PT_PAX_FLAGS
67101+ case PT_PAX_FLAGS: {
67102+ const char *msg_mprotect = "", *msg_emutramp = "";
67103+ char *buffer_lib, *buffer_exe;
67104+
67105+ if (elf_p.p_flags & PF_NOMPROTECT)
67106+ msg_mprotect = "MPROTECT disabled";
67107+
67108+#ifdef CONFIG_PAX_EMUTRAMP
67109+ if (!(vma->vm_mm->pax_flags & MF_PAX_EMUTRAMP) && !(elf_p.p_flags & PF_NOEMUTRAMP))
67110+ msg_emutramp = "EMUTRAMP enabled";
67111+#endif
67112+
67113+ if (!msg_mprotect[0] && !msg_emutramp[0])
67114+ continue;
67115+
67116+ if (!printk_ratelimit())
67117+ continue;
67118+
67119+ buffer_lib = (char *)__get_free_page(GFP_KERNEL);
67120+ buffer_exe = (char *)__get_free_page(GFP_KERNEL);
67121+ if (buffer_lib && buffer_exe) {
67122+ char *path_lib, *path_exe;
67123+
67124+ path_lib = pax_get_path(&vma->vm_file->f_path, buffer_lib, PAGE_SIZE);
67125+ path_exe = pax_get_path(&vma->vm_mm->exe_file->f_path, buffer_exe, PAGE_SIZE);
67126+
67127+ pr_info("PAX: %s wants %s%s%s on %s\n", path_lib, msg_mprotect,
67128+ (msg_mprotect[0] && msg_emutramp[0] ? " and " : ""), msg_emutramp, path_exe);
67129+
67130+ }
67131+ free_page((unsigned long)buffer_exe);
67132+ free_page((unsigned long)buffer_lib);
67133+ continue;
67134+ }
67135+#endif
67136+
67137+ }
67138+ }
67139+}
67140+#endif
67141+
67142+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
67143+
67144+extern int grsec_enable_log_rwxmaps;
67145+
67146+static void elf_handle_mmap(struct file *file)
67147+{
67148+ struct elfhdr elf_h;
67149+ struct elf_phdr elf_p;
67150+ unsigned long i;
67151+
67152+ if (!grsec_enable_log_rwxmaps)
67153+ return;
67154+
67155+ if (sizeof(elf_h) != kernel_read(file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
67156+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
67157+ (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC) || !elf_check_arch(&elf_h) ||
67158+ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
67159+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
67160+ return;
67161+
67162+ for (i = 0UL; i < elf_h.e_phnum; i++) {
67163+ if (sizeof(elf_p) != kernel_read(file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
67164+ return;
67165+ if (elf_p.p_type == PT_GNU_STACK && (elf_p.p_flags & PF_X))
67166+ gr_log_ptgnustack(file);
67167+ }
67168+}
67169+#endif
67170+
67171 static int __init init_elf_binfmt(void)
67172 {
67173 register_binfmt(&elf_format);
67174diff --git a/fs/block_dev.c b/fs/block_dev.c
67175index 975266b..c3d1856 100644
67176--- a/fs/block_dev.c
67177+++ b/fs/block_dev.c
67178@@ -734,7 +734,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
67179 else if (bdev->bd_contains == bdev)
67180 return true; /* is a whole device which isn't held */
67181
67182- else if (whole->bd_holder == bd_may_claim)
67183+ else if (whole->bd_holder == (void *)bd_may_claim)
67184 return true; /* is a partition of a device that is being partitioned */
67185 else if (whole->bd_holder != NULL)
67186 return false; /* is a partition of a held device */
67187diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
67188index 6d67f32..8f33187 100644
67189--- a/fs/btrfs/ctree.c
67190+++ b/fs/btrfs/ctree.c
67191@@ -1181,9 +1181,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
67192 free_extent_buffer(buf);
67193 add_root_to_dirty_list(root);
67194 } else {
67195- if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
67196- parent_start = parent->start;
67197- else
67198+ if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
67199+ if (parent)
67200+ parent_start = parent->start;
67201+ else
67202+ parent_start = 0;
67203+ } else
67204 parent_start = 0;
67205
67206 WARN_ON(trans->transid != btrfs_header_generation(parent));
67207diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
67208index 82f0c7c..dff78a8 100644
67209--- a/fs/btrfs/delayed-inode.c
67210+++ b/fs/btrfs/delayed-inode.c
67211@@ -462,7 +462,7 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
67212
67213 static void finish_one_item(struct btrfs_delayed_root *delayed_root)
67214 {
67215- int seq = atomic_inc_return(&delayed_root->items_seq);
67216+ int seq = atomic_inc_return_unchecked(&delayed_root->items_seq);
67217 if ((atomic_dec_return(&delayed_root->items) <
67218 BTRFS_DELAYED_BACKGROUND || seq % BTRFS_DELAYED_BATCH == 0) &&
67219 waitqueue_active(&delayed_root->wait))
67220@@ -1412,7 +1412,7 @@ void btrfs_assert_delayed_root_empty(struct btrfs_root *root)
67221
67222 static int could_end_wait(struct btrfs_delayed_root *delayed_root, int seq)
67223 {
67224- int val = atomic_read(&delayed_root->items_seq);
67225+ int val = atomic_read_unchecked(&delayed_root->items_seq);
67226
67227 if (val < seq || val >= seq + BTRFS_DELAYED_BATCH)
67228 return 1;
67229@@ -1436,7 +1436,7 @@ void btrfs_balance_delayed_items(struct btrfs_root *root)
67230 int seq;
67231 int ret;
67232
67233- seq = atomic_read(&delayed_root->items_seq);
67234+ seq = atomic_read_unchecked(&delayed_root->items_seq);
67235
67236 ret = btrfs_wq_run_delayed_node(delayed_root, root, 0);
67237 if (ret)
67238diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
67239index f70119f..ab5894d 100644
67240--- a/fs/btrfs/delayed-inode.h
67241+++ b/fs/btrfs/delayed-inode.h
67242@@ -43,7 +43,7 @@ struct btrfs_delayed_root {
67243 */
67244 struct list_head prepare_list;
67245 atomic_t items; /* for delayed items */
67246- atomic_t items_seq; /* for delayed items */
67247+ atomic_unchecked_t items_seq; /* for delayed items */
67248 int nodes; /* for delayed nodes */
67249 wait_queue_head_t wait;
67250 };
67251@@ -90,7 +90,7 @@ static inline void btrfs_init_delayed_root(
67252 struct btrfs_delayed_root *delayed_root)
67253 {
67254 atomic_set(&delayed_root->items, 0);
67255- atomic_set(&delayed_root->items_seq, 0);
67256+ atomic_set_unchecked(&delayed_root->items_seq, 0);
67257 delayed_root->nodes = 0;
67258 spin_lock_init(&delayed_root->lock);
67259 init_waitqueue_head(&delayed_root->wait);
67260diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
67261index 05fef19..f3774b8 100644
67262--- a/fs/btrfs/super.c
67263+++ b/fs/btrfs/super.c
67264@@ -271,7 +271,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
67265 function, line, errstr);
67266 return;
67267 }
67268- ACCESS_ONCE(trans->transaction->aborted) = errno;
67269+ ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
67270 /* Wake up anybody who may be waiting on this transaction */
67271 wake_up(&root->fs_info->transaction_wait);
67272 wake_up(&root->fs_info->transaction_blocked_wait);
67273diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
67274index 94edb0a..e94dc93 100644
67275--- a/fs/btrfs/sysfs.c
67276+++ b/fs/btrfs/sysfs.c
67277@@ -472,7 +472,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
67278 for (set = 0; set < FEAT_MAX; set++) {
67279 int i;
67280 struct attribute *attrs[2];
67281- struct attribute_group agroup = {
67282+ attribute_group_no_const agroup = {
67283 .name = "features",
67284 .attrs = attrs,
67285 };
67286diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
67287index 2299bfd..4098e72 100644
67288--- a/fs/btrfs/tests/free-space-tests.c
67289+++ b/fs/btrfs/tests/free-space-tests.c
67290@@ -463,7 +463,9 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
67291 * extent entry.
67292 */
67293 use_bitmap_op = cache->free_space_ctl->op->use_bitmap;
67294- cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
67295+ pax_open_kernel();
67296+ *(void **)&cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
67297+ pax_close_kernel();
67298
67299 /*
67300 * Extent entry covering free space range [128Mb - 256Kb, 128Mb - 128Kb[
67301@@ -870,7 +872,9 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
67302 if (ret)
67303 return ret;
67304
67305- cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
67306+ pax_open_kernel();
67307+ *(void **)&cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
67308+ pax_close_kernel();
67309 __btrfs_remove_free_space_cache(cache->free_space_ctl);
67310
67311 return 0;
67312diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
67313index 154990c..d0cf699 100644
67314--- a/fs/btrfs/tree-log.h
67315+++ b/fs/btrfs/tree-log.h
67316@@ -43,7 +43,7 @@ static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx)
67317 static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
67318 struct btrfs_trans_handle *trans)
67319 {
67320- ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
67321+ ACCESS_ONCE_RW(fs_info->last_trans_log_full_commit) = trans->transid;
67322 }
67323
67324 static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
67325diff --git a/fs/buffer.c b/fs/buffer.c
67326index 20805db..2e8fc69 100644
67327--- a/fs/buffer.c
67328+++ b/fs/buffer.c
67329@@ -3417,7 +3417,7 @@ void __init buffer_init(void)
67330 bh_cachep = kmem_cache_create("buffer_head",
67331 sizeof(struct buffer_head), 0,
67332 (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
67333- SLAB_MEM_SPREAD),
67334+ SLAB_MEM_SPREAD|SLAB_NO_SANITIZE),
67335 NULL);
67336
67337 /*
67338diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
67339index fbb08e9..0fda764 100644
67340--- a/fs/cachefiles/bind.c
67341+++ b/fs/cachefiles/bind.c
67342@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
67343 args);
67344
67345 /* start by checking things over */
67346- ASSERT(cache->fstop_percent >= 0 &&
67347- cache->fstop_percent < cache->fcull_percent &&
67348+ ASSERT(cache->fstop_percent < cache->fcull_percent &&
67349 cache->fcull_percent < cache->frun_percent &&
67350 cache->frun_percent < 100);
67351
67352- ASSERT(cache->bstop_percent >= 0 &&
67353- cache->bstop_percent < cache->bcull_percent &&
67354+ ASSERT(cache->bstop_percent < cache->bcull_percent &&
67355 cache->bcull_percent < cache->brun_percent &&
67356 cache->brun_percent < 100);
67357
67358diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
67359index f601def..b2cf704 100644
67360--- a/fs/cachefiles/daemon.c
67361+++ b/fs/cachefiles/daemon.c
67362@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
67363 if (n > buflen)
67364 return -EMSGSIZE;
67365
67366- if (copy_to_user(_buffer, buffer, n) != 0)
67367+ if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
67368 return -EFAULT;
67369
67370 return n;
67371@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
67372 if (test_bit(CACHEFILES_DEAD, &cache->flags))
67373 return -EIO;
67374
67375- if (datalen < 0 || datalen > PAGE_SIZE - 1)
67376+ if (datalen > PAGE_SIZE - 1)
67377 return -EOPNOTSUPP;
67378
67379 /* drag the command string into the kernel so we can parse it */
67380@@ -385,7 +385,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
67381 if (args[0] != '%' || args[1] != '\0')
67382 return -EINVAL;
67383
67384- if (fstop < 0 || fstop >= cache->fcull_percent)
67385+ if (fstop >= cache->fcull_percent)
67386 return cachefiles_daemon_range_error(cache, args);
67387
67388 cache->fstop_percent = fstop;
67389@@ -457,7 +457,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
67390 if (args[0] != '%' || args[1] != '\0')
67391 return -EINVAL;
67392
67393- if (bstop < 0 || bstop >= cache->bcull_percent)
67394+ if (bstop >= cache->bcull_percent)
67395 return cachefiles_daemon_range_error(cache, args);
67396
67397 cache->bstop_percent = bstop;
67398diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
67399index 8c52472..c4e3a69 100644
67400--- a/fs/cachefiles/internal.h
67401+++ b/fs/cachefiles/internal.h
67402@@ -66,7 +66,7 @@ struct cachefiles_cache {
67403 wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */
67404 struct rb_root active_nodes; /* active nodes (can't be culled) */
67405 rwlock_t active_lock; /* lock for active_nodes */
67406- atomic_t gravecounter; /* graveyard uniquifier */
67407+ atomic_unchecked_t gravecounter; /* graveyard uniquifier */
67408 unsigned frun_percent; /* when to stop culling (% files) */
67409 unsigned fcull_percent; /* when to start culling (% files) */
67410 unsigned fstop_percent; /* when to stop allocating (% files) */
67411@@ -178,19 +178,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
67412 * proc.c
67413 */
67414 #ifdef CONFIG_CACHEFILES_HISTOGRAM
67415-extern atomic_t cachefiles_lookup_histogram[HZ];
67416-extern atomic_t cachefiles_mkdir_histogram[HZ];
67417-extern atomic_t cachefiles_create_histogram[HZ];
67418+extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
67419+extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
67420+extern atomic_unchecked_t cachefiles_create_histogram[HZ];
67421
67422 extern int __init cachefiles_proc_init(void);
67423 extern void cachefiles_proc_cleanup(void);
67424 static inline
67425-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
67426+void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
67427 {
67428 unsigned long jif = jiffies - start_jif;
67429 if (jif >= HZ)
67430 jif = HZ - 1;
67431- atomic_inc(&histogram[jif]);
67432+ atomic_inc_unchecked(&histogram[jif]);
67433 }
67434
67435 #else
67436diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
67437index 1e51714..411eded 100644
67438--- a/fs/cachefiles/namei.c
67439+++ b/fs/cachefiles/namei.c
67440@@ -309,7 +309,7 @@ try_again:
67441 /* first step is to make up a grave dentry in the graveyard */
67442 sprintf(nbuffer, "%08x%08x",
67443 (uint32_t) get_seconds(),
67444- (uint32_t) atomic_inc_return(&cache->gravecounter));
67445+ (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
67446
67447 /* do the multiway lock magic */
67448 trap = lock_rename(cache->graveyard, dir);
67449diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
67450index eccd339..4c1d995 100644
67451--- a/fs/cachefiles/proc.c
67452+++ b/fs/cachefiles/proc.c
67453@@ -14,9 +14,9 @@
67454 #include <linux/seq_file.h>
67455 #include "internal.h"
67456
67457-atomic_t cachefiles_lookup_histogram[HZ];
67458-atomic_t cachefiles_mkdir_histogram[HZ];
67459-atomic_t cachefiles_create_histogram[HZ];
67460+atomic_unchecked_t cachefiles_lookup_histogram[HZ];
67461+atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
67462+atomic_unchecked_t cachefiles_create_histogram[HZ];
67463
67464 /*
67465 * display the latency histogram
67466@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
67467 return 0;
67468 default:
67469 index = (unsigned long) v - 3;
67470- x = atomic_read(&cachefiles_lookup_histogram[index]);
67471- y = atomic_read(&cachefiles_mkdir_histogram[index]);
67472- z = atomic_read(&cachefiles_create_histogram[index]);
67473+ x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
67474+ y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
67475+ z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
67476 if (x == 0 && y == 0 && z == 0)
67477 return 0;
67478
67479diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
67480index 83e9976..bfd1eee 100644
67481--- a/fs/ceph/dir.c
67482+++ b/fs/ceph/dir.c
67483@@ -127,6 +127,8 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
67484 struct dentry *dentry, *last;
67485 struct ceph_dentry_info *di;
67486 int err = 0;
67487+ char d_name[DNAME_INLINE_LEN];
67488+ const unsigned char *name;
67489
67490 /* claim ref on last dentry we returned */
67491 last = fi->dentry;
67492@@ -190,7 +192,12 @@ more:
67493
67494 dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
67495 dentry, dentry, dentry->d_inode);
67496- if (!dir_emit(ctx, dentry->d_name.name,
67497+ name = dentry->d_name.name;
67498+ if (name == dentry->d_iname) {
67499+ memcpy(d_name, name, dentry->d_name.len);
67500+ name = d_name;
67501+ }
67502+ if (!dir_emit(ctx, name,
67503 dentry->d_name.len,
67504 ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino),
67505 dentry->d_inode->i_mode >> 12)) {
67506@@ -248,7 +255,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
67507 struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
67508 struct ceph_mds_client *mdsc = fsc->mdsc;
67509 unsigned frag = fpos_frag(ctx->pos);
67510- int off = fpos_off(ctx->pos);
67511+ unsigned int off = fpos_off(ctx->pos);
67512 int err;
67513 u32 ftype;
67514 struct ceph_mds_reply_info_parsed *rinfo;
67515diff --git a/fs/ceph/super.c b/fs/ceph/super.c
67516index a63997b..ddc0577 100644
67517--- a/fs/ceph/super.c
67518+++ b/fs/ceph/super.c
67519@@ -889,7 +889,7 @@ static int ceph_compare_super(struct super_block *sb, void *data)
67520 /*
67521 * construct our own bdi so we can control readahead, etc.
67522 */
67523-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
67524+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
67525
67526 static int ceph_register_bdi(struct super_block *sb,
67527 struct ceph_fs_client *fsc)
67528@@ -906,7 +906,7 @@ static int ceph_register_bdi(struct super_block *sb,
67529 VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE;
67530
67531 err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",
67532- atomic_long_inc_return(&bdi_seq));
67533+ atomic_long_inc_return_unchecked(&bdi_seq));
67534 if (!err)
67535 sb->s_bdi = &fsc->backing_dev_info;
67536 return err;
67537diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
67538index 7febcf2..62a5721 100644
67539--- a/fs/cifs/cifs_debug.c
67540+++ b/fs/cifs/cifs_debug.c
67541@@ -269,8 +269,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
67542
67543 if (strtobool(&c, &bv) == 0) {
67544 #ifdef CONFIG_CIFS_STATS2
67545- atomic_set(&totBufAllocCount, 0);
67546- atomic_set(&totSmBufAllocCount, 0);
67547+ atomic_set_unchecked(&totBufAllocCount, 0);
67548+ atomic_set_unchecked(&totSmBufAllocCount, 0);
67549 #endif /* CONFIG_CIFS_STATS2 */
67550 spin_lock(&cifs_tcp_ses_lock);
67551 list_for_each(tmp1, &cifs_tcp_ses_list) {
67552@@ -283,7 +283,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
67553 tcon = list_entry(tmp3,
67554 struct cifs_tcon,
67555 tcon_list);
67556- atomic_set(&tcon->num_smbs_sent, 0);
67557+ atomic_set_unchecked(&tcon->num_smbs_sent, 0);
67558 if (server->ops->clear_stats)
67559 server->ops->clear_stats(tcon);
67560 }
67561@@ -315,8 +315,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
67562 smBufAllocCount.counter, cifs_min_small);
67563 #ifdef CONFIG_CIFS_STATS2
67564 seq_printf(m, "Total Large %d Small %d Allocations\n",
67565- atomic_read(&totBufAllocCount),
67566- atomic_read(&totSmBufAllocCount));
67567+ atomic_read_unchecked(&totBufAllocCount),
67568+ atomic_read_unchecked(&totSmBufAllocCount));
67569 #endif /* CONFIG_CIFS_STATS2 */
67570
67571 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
67572@@ -345,7 +345,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
67573 if (tcon->need_reconnect)
67574 seq_puts(m, "\tDISCONNECTED ");
67575 seq_printf(m, "\nSMBs: %d",
67576- atomic_read(&tcon->num_smbs_sent));
67577+ atomic_read_unchecked(&tcon->num_smbs_sent));
67578 if (server->ops->print_stats)
67579 server->ops->print_stats(m, tcon);
67580 }
67581diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
67582index d72fe37..ded5511 100644
67583--- a/fs/cifs/cifsfs.c
67584+++ b/fs/cifs/cifsfs.c
67585@@ -1092,7 +1092,7 @@ cifs_init_request_bufs(void)
67586 */
67587 cifs_req_cachep = kmem_cache_create("cifs_request",
67588 CIFSMaxBufSize + max_hdr_size, 0,
67589- SLAB_HWCACHE_ALIGN, NULL);
67590+ SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
67591 if (cifs_req_cachep == NULL)
67592 return -ENOMEM;
67593
67594@@ -1119,7 +1119,7 @@ cifs_init_request_bufs(void)
67595 efficient to alloc 1 per page off the slab compared to 17K (5page)
67596 alloc of large cifs buffers even when page debugging is on */
67597 cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
67598- MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
67599+ MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
67600 NULL);
67601 if (cifs_sm_req_cachep == NULL) {
67602 mempool_destroy(cifs_req_poolp);
67603@@ -1204,8 +1204,8 @@ init_cifs(void)
67604 atomic_set(&bufAllocCount, 0);
67605 atomic_set(&smBufAllocCount, 0);
67606 #ifdef CONFIG_CIFS_STATS2
67607- atomic_set(&totBufAllocCount, 0);
67608- atomic_set(&totSmBufAllocCount, 0);
67609+ atomic_set_unchecked(&totBufAllocCount, 0);
67610+ atomic_set_unchecked(&totSmBufAllocCount, 0);
67611 #endif /* CONFIG_CIFS_STATS2 */
67612
67613 atomic_set(&midCount, 0);
67614diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
67615index 22b289a..bbbba08 100644
67616--- a/fs/cifs/cifsglob.h
67617+++ b/fs/cifs/cifsglob.h
67618@@ -823,35 +823,35 @@ struct cifs_tcon {
67619 __u16 Flags; /* optional support bits */
67620 enum statusEnum tidStatus;
67621 #ifdef CONFIG_CIFS_STATS
67622- atomic_t num_smbs_sent;
67623+ atomic_unchecked_t num_smbs_sent;
67624 union {
67625 struct {
67626- atomic_t num_writes;
67627- atomic_t num_reads;
67628- atomic_t num_flushes;
67629- atomic_t num_oplock_brks;
67630- atomic_t num_opens;
67631- atomic_t num_closes;
67632- atomic_t num_deletes;
67633- atomic_t num_mkdirs;
67634- atomic_t num_posixopens;
67635- atomic_t num_posixmkdirs;
67636- atomic_t num_rmdirs;
67637- atomic_t num_renames;
67638- atomic_t num_t2renames;
67639- atomic_t num_ffirst;
67640- atomic_t num_fnext;
67641- atomic_t num_fclose;
67642- atomic_t num_hardlinks;
67643- atomic_t num_symlinks;
67644- atomic_t num_locks;
67645- atomic_t num_acl_get;
67646- atomic_t num_acl_set;
67647+ atomic_unchecked_t num_writes;
67648+ atomic_unchecked_t num_reads;
67649+ atomic_unchecked_t num_flushes;
67650+ atomic_unchecked_t num_oplock_brks;
67651+ atomic_unchecked_t num_opens;
67652+ atomic_unchecked_t num_closes;
67653+ atomic_unchecked_t num_deletes;
67654+ atomic_unchecked_t num_mkdirs;
67655+ atomic_unchecked_t num_posixopens;
67656+ atomic_unchecked_t num_posixmkdirs;
67657+ atomic_unchecked_t num_rmdirs;
67658+ atomic_unchecked_t num_renames;
67659+ atomic_unchecked_t num_t2renames;
67660+ atomic_unchecked_t num_ffirst;
67661+ atomic_unchecked_t num_fnext;
67662+ atomic_unchecked_t num_fclose;
67663+ atomic_unchecked_t num_hardlinks;
67664+ atomic_unchecked_t num_symlinks;
67665+ atomic_unchecked_t num_locks;
67666+ atomic_unchecked_t num_acl_get;
67667+ atomic_unchecked_t num_acl_set;
67668 } cifs_stats;
67669 #ifdef CONFIG_CIFS_SMB2
67670 struct {
67671- atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
67672- atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
67673+ atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
67674+ atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
67675 } smb2_stats;
67676 #endif /* CONFIG_CIFS_SMB2 */
67677 } stats;
67678@@ -1198,7 +1198,7 @@ convert_delimiter(char *path, char delim)
67679 }
67680
67681 #ifdef CONFIG_CIFS_STATS
67682-#define cifs_stats_inc atomic_inc
67683+#define cifs_stats_inc atomic_inc_unchecked
67684
67685 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
67686 unsigned int bytes)
67687@@ -1565,8 +1565,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
67688 /* Various Debug counters */
67689 GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
67690 #ifdef CONFIG_CIFS_STATS2
67691-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
67692-GLOBAL_EXTERN atomic_t totSmBufAllocCount;
67693+GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
67694+GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
67695 #endif
67696 GLOBAL_EXTERN atomic_t smBufAllocCount;
67697 GLOBAL_EXTERN atomic_t midCount;
67698diff --git a/fs/cifs/file.c b/fs/cifs/file.c
67699index ca30c39..570fb94 100644
67700--- a/fs/cifs/file.c
67701+++ b/fs/cifs/file.c
67702@@ -2055,10 +2055,14 @@ static int cifs_writepages(struct address_space *mapping,
67703 index = mapping->writeback_index; /* Start from prev offset */
67704 end = -1;
67705 } else {
67706- index = wbc->range_start >> PAGE_CACHE_SHIFT;
67707- end = wbc->range_end >> PAGE_CACHE_SHIFT;
67708- if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
67709+ if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
67710 range_whole = true;
67711+ index = 0;
67712+ end = ULONG_MAX;
67713+ } else {
67714+ index = wbc->range_start >> PAGE_CACHE_SHIFT;
67715+ end = wbc->range_end >> PAGE_CACHE_SHIFT;
67716+ }
67717 scanned = true;
67718 }
67719 server = cifs_sb_master_tcon(cifs_sb)->ses->server;
67720diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
67721index 3379463..3af418a 100644
67722--- a/fs/cifs/misc.c
67723+++ b/fs/cifs/misc.c
67724@@ -170,7 +170,7 @@ cifs_buf_get(void)
67725 memset(ret_buf, 0, buf_size + 3);
67726 atomic_inc(&bufAllocCount);
67727 #ifdef CONFIG_CIFS_STATS2
67728- atomic_inc(&totBufAllocCount);
67729+ atomic_inc_unchecked(&totBufAllocCount);
67730 #endif /* CONFIG_CIFS_STATS2 */
67731 }
67732
67733@@ -205,7 +205,7 @@ cifs_small_buf_get(void)
67734 /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
67735 atomic_inc(&smBufAllocCount);
67736 #ifdef CONFIG_CIFS_STATS2
67737- atomic_inc(&totSmBufAllocCount);
67738+ atomic_inc_unchecked(&totSmBufAllocCount);
67739 #endif /* CONFIG_CIFS_STATS2 */
67740
67741 }
67742diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
67743index d297903..1cb7516 100644
67744--- a/fs/cifs/smb1ops.c
67745+++ b/fs/cifs/smb1ops.c
67746@@ -622,27 +622,27 @@ static void
67747 cifs_clear_stats(struct cifs_tcon *tcon)
67748 {
67749 #ifdef CONFIG_CIFS_STATS
67750- atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
67751- atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
67752- atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
67753- atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
67754- atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
67755- atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
67756- atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
67757- atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
67758- atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
67759- atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
67760- atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
67761- atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
67762- atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
67763- atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
67764- atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
67765- atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
67766- atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
67767- atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
67768- atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
67769- atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
67770- atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
67771+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
67772+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
67773+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
67774+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
67775+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
67776+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
67777+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
67778+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
67779+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
67780+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
67781+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
67782+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
67783+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
67784+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
67785+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
67786+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
67787+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
67788+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
67789+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
67790+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
67791+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
67792 #endif
67793 }
67794
67795@@ -651,36 +651,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
67796 {
67797 #ifdef CONFIG_CIFS_STATS
67798 seq_printf(m, " Oplocks breaks: %d",
67799- atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
67800+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
67801 seq_printf(m, "\nReads: %d Bytes: %llu",
67802- atomic_read(&tcon->stats.cifs_stats.num_reads),
67803+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
67804 (long long)(tcon->bytes_read));
67805 seq_printf(m, "\nWrites: %d Bytes: %llu",
67806- atomic_read(&tcon->stats.cifs_stats.num_writes),
67807+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
67808 (long long)(tcon->bytes_written));
67809 seq_printf(m, "\nFlushes: %d",
67810- atomic_read(&tcon->stats.cifs_stats.num_flushes));
67811+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
67812 seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
67813- atomic_read(&tcon->stats.cifs_stats.num_locks),
67814- atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
67815- atomic_read(&tcon->stats.cifs_stats.num_symlinks));
67816+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
67817+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
67818+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
67819 seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
67820- atomic_read(&tcon->stats.cifs_stats.num_opens),
67821- atomic_read(&tcon->stats.cifs_stats.num_closes),
67822- atomic_read(&tcon->stats.cifs_stats.num_deletes));
67823+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
67824+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
67825+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
67826 seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
67827- atomic_read(&tcon->stats.cifs_stats.num_posixopens),
67828- atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
67829+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
67830+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
67831 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
67832- atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
67833- atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
67834+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
67835+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
67836 seq_printf(m, "\nRenames: %d T2 Renames %d",
67837- atomic_read(&tcon->stats.cifs_stats.num_renames),
67838- atomic_read(&tcon->stats.cifs_stats.num_t2renames));
67839+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
67840+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
67841 seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
67842- atomic_read(&tcon->stats.cifs_stats.num_ffirst),
67843- atomic_read(&tcon->stats.cifs_stats.num_fnext),
67844- atomic_read(&tcon->stats.cifs_stats.num_fclose));
67845+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
67846+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
67847+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
67848 #endif
67849 }
67850
67851diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
67852index eab05e1..ffe5ea4 100644
67853--- a/fs/cifs/smb2ops.c
67854+++ b/fs/cifs/smb2ops.c
67855@@ -418,8 +418,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
67856 #ifdef CONFIG_CIFS_STATS
67857 int i;
67858 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
67859- atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
67860- atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
67861+ atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
67862+ atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
67863 }
67864 #endif
67865 }
67866@@ -459,65 +459,65 @@ static void
67867 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
67868 {
67869 #ifdef CONFIG_CIFS_STATS
67870- atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
67871- atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
67872+ atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
67873+ atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
67874 seq_printf(m, "\nNegotiates: %d sent %d failed",
67875- atomic_read(&sent[SMB2_NEGOTIATE_HE]),
67876- atomic_read(&failed[SMB2_NEGOTIATE_HE]));
67877+ atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
67878+ atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
67879 seq_printf(m, "\nSessionSetups: %d sent %d failed",
67880- atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
67881- atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
67882+ atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
67883+ atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
67884 seq_printf(m, "\nLogoffs: %d sent %d failed",
67885- atomic_read(&sent[SMB2_LOGOFF_HE]),
67886- atomic_read(&failed[SMB2_LOGOFF_HE]));
67887+ atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
67888+ atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
67889 seq_printf(m, "\nTreeConnects: %d sent %d failed",
67890- atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
67891- atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
67892+ atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
67893+ atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
67894 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
67895- atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
67896- atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
67897+ atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
67898+ atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
67899 seq_printf(m, "\nCreates: %d sent %d failed",
67900- atomic_read(&sent[SMB2_CREATE_HE]),
67901- atomic_read(&failed[SMB2_CREATE_HE]));
67902+ atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
67903+ atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
67904 seq_printf(m, "\nCloses: %d sent %d failed",
67905- atomic_read(&sent[SMB2_CLOSE_HE]),
67906- atomic_read(&failed[SMB2_CLOSE_HE]));
67907+ atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
67908+ atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
67909 seq_printf(m, "\nFlushes: %d sent %d failed",
67910- atomic_read(&sent[SMB2_FLUSH_HE]),
67911- atomic_read(&failed[SMB2_FLUSH_HE]));
67912+ atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
67913+ atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
67914 seq_printf(m, "\nReads: %d sent %d failed",
67915- atomic_read(&sent[SMB2_READ_HE]),
67916- atomic_read(&failed[SMB2_READ_HE]));
67917+ atomic_read_unchecked(&sent[SMB2_READ_HE]),
67918+ atomic_read_unchecked(&failed[SMB2_READ_HE]));
67919 seq_printf(m, "\nWrites: %d sent %d failed",
67920- atomic_read(&sent[SMB2_WRITE_HE]),
67921- atomic_read(&failed[SMB2_WRITE_HE]));
67922+ atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
67923+ atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
67924 seq_printf(m, "\nLocks: %d sent %d failed",
67925- atomic_read(&sent[SMB2_LOCK_HE]),
67926- atomic_read(&failed[SMB2_LOCK_HE]));
67927+ atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
67928+ atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
67929 seq_printf(m, "\nIOCTLs: %d sent %d failed",
67930- atomic_read(&sent[SMB2_IOCTL_HE]),
67931- atomic_read(&failed[SMB2_IOCTL_HE]));
67932+ atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
67933+ atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
67934 seq_printf(m, "\nCancels: %d sent %d failed",
67935- atomic_read(&sent[SMB2_CANCEL_HE]),
67936- atomic_read(&failed[SMB2_CANCEL_HE]));
67937+ atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
67938+ atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
67939 seq_printf(m, "\nEchos: %d sent %d failed",
67940- atomic_read(&sent[SMB2_ECHO_HE]),
67941- atomic_read(&failed[SMB2_ECHO_HE]));
67942+ atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
67943+ atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
67944 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
67945- atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
67946- atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
67947+ atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
67948+ atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
67949 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
67950- atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
67951- atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
67952+ atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
67953+ atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
67954 seq_printf(m, "\nQueryInfos: %d sent %d failed",
67955- atomic_read(&sent[SMB2_QUERY_INFO_HE]),
67956- atomic_read(&failed[SMB2_QUERY_INFO_HE]));
67957+ atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
67958+ atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
67959 seq_printf(m, "\nSetInfos: %d sent %d failed",
67960- atomic_read(&sent[SMB2_SET_INFO_HE]),
67961- atomic_read(&failed[SMB2_SET_INFO_HE]));
67962+ atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
67963+ atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
67964 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
67965- atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
67966- atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
67967+ atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
67968+ atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
67969 #endif
67970 }
67971
67972diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
67973index 65cd7a8..3518676 100644
67974--- a/fs/cifs/smb2pdu.c
67975+++ b/fs/cifs/smb2pdu.c
67976@@ -2147,8 +2147,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
67977 default:
67978 cifs_dbg(VFS, "info level %u isn't supported\n",
67979 srch_inf->info_level);
67980- rc = -EINVAL;
67981- goto qdir_exit;
67982+ return -EINVAL;
67983 }
67984
67985 req->FileIndex = cpu_to_le32(index);
67986diff --git a/fs/coda/cache.c b/fs/coda/cache.c
67987index 46ee6f2..89a9e7f 100644
67988--- a/fs/coda/cache.c
67989+++ b/fs/coda/cache.c
67990@@ -24,7 +24,7 @@
67991 #include "coda_linux.h"
67992 #include "coda_cache.h"
67993
67994-static atomic_t permission_epoch = ATOMIC_INIT(0);
67995+static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
67996
67997 /* replace or extend an acl cache hit */
67998 void coda_cache_enter(struct inode *inode, int mask)
67999@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
68000 struct coda_inode_info *cii = ITOC(inode);
68001
68002 spin_lock(&cii->c_lock);
68003- cii->c_cached_epoch = atomic_read(&permission_epoch);
68004+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
68005 if (!uid_eq(cii->c_uid, current_fsuid())) {
68006 cii->c_uid = current_fsuid();
68007 cii->c_cached_perm = mask;
68008@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
68009 {
68010 struct coda_inode_info *cii = ITOC(inode);
68011 spin_lock(&cii->c_lock);
68012- cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
68013+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
68014 spin_unlock(&cii->c_lock);
68015 }
68016
68017 /* remove all acl caches */
68018 void coda_cache_clear_all(struct super_block *sb)
68019 {
68020- atomic_inc(&permission_epoch);
68021+ atomic_inc_unchecked(&permission_epoch);
68022 }
68023
68024
68025@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
68026 spin_lock(&cii->c_lock);
68027 hit = (mask & cii->c_cached_perm) == mask &&
68028 uid_eq(cii->c_uid, current_fsuid()) &&
68029- cii->c_cached_epoch == atomic_read(&permission_epoch);
68030+ cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
68031 spin_unlock(&cii->c_lock);
68032
68033 return hit;
68034diff --git a/fs/compat.c b/fs/compat.c
68035index 6fd272d..dd34ba2 100644
68036--- a/fs/compat.c
68037+++ b/fs/compat.c
68038@@ -54,7 +54,7 @@
68039 #include <asm/ioctls.h>
68040 #include "internal.h"
68041
68042-int compat_log = 1;
68043+int compat_log = 0;
68044
68045 int compat_printk(const char *fmt, ...)
68046 {
68047@@ -512,7 +512,7 @@ COMPAT_SYSCALL_DEFINE2(io_setup, unsigned, nr_reqs, u32 __user *, ctx32p)
68048
68049 set_fs(KERNEL_DS);
68050 /* The __user pointer cast is valid because of the set_fs() */
68051- ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
68052+ ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
68053 set_fs(oldfs);
68054 /* truncating is ok because it's a user address */
68055 if (!ret)
68056@@ -562,7 +562,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
68057 goto out;
68058
68059 ret = -EINVAL;
68060- if (nr_segs > UIO_MAXIOV || nr_segs < 0)
68061+ if (nr_segs > UIO_MAXIOV)
68062 goto out;
68063 if (nr_segs > fast_segs) {
68064 ret = -ENOMEM;
68065@@ -844,6 +844,7 @@ struct compat_old_linux_dirent {
68066 struct compat_readdir_callback {
68067 struct dir_context ctx;
68068 struct compat_old_linux_dirent __user *dirent;
68069+ struct file * file;
68070 int result;
68071 };
68072
68073@@ -863,6 +864,10 @@ static int compat_fillonedir(struct dir_context *ctx, const char *name,
68074 buf->result = -EOVERFLOW;
68075 return -EOVERFLOW;
68076 }
68077+
68078+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68079+ return 0;
68080+
68081 buf->result++;
68082 dirent = buf->dirent;
68083 if (!access_ok(VERIFY_WRITE, dirent,
68084@@ -894,6 +899,7 @@ COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
68085 if (!f.file)
68086 return -EBADF;
68087
68088+ buf.file = f.file;
68089 error = iterate_dir(f.file, &buf.ctx);
68090 if (buf.result)
68091 error = buf.result;
68092@@ -913,6 +919,7 @@ struct compat_getdents_callback {
68093 struct dir_context ctx;
68094 struct compat_linux_dirent __user *current_dir;
68095 struct compat_linux_dirent __user *previous;
68096+ struct file * file;
68097 int count;
68098 int error;
68099 };
68100@@ -935,6 +942,10 @@ static int compat_filldir(struct dir_context *ctx, const char *name, int namlen,
68101 buf->error = -EOVERFLOW;
68102 return -EOVERFLOW;
68103 }
68104+
68105+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68106+ return 0;
68107+
68108 dirent = buf->previous;
68109 if (dirent) {
68110 if (__put_user(offset, &dirent->d_off))
68111@@ -980,6 +991,7 @@ COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
68112 if (!f.file)
68113 return -EBADF;
68114
68115+ buf.file = f.file;
68116 error = iterate_dir(f.file, &buf.ctx);
68117 if (error >= 0)
68118 error = buf.error;
68119@@ -1000,6 +1012,7 @@ struct compat_getdents_callback64 {
68120 struct dir_context ctx;
68121 struct linux_dirent64 __user *current_dir;
68122 struct linux_dirent64 __user *previous;
68123+ struct file * file;
68124 int count;
68125 int error;
68126 };
68127@@ -1018,6 +1031,10 @@ static int compat_filldir64(struct dir_context *ctx, const char *name,
68128 buf->error = -EINVAL; /* only used if we fail.. */
68129 if (reclen > buf->count)
68130 return -EINVAL;
68131+
68132+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68133+ return 0;
68134+
68135 dirent = buf->previous;
68136
68137 if (dirent) {
68138@@ -1067,6 +1084,7 @@ COMPAT_SYSCALL_DEFINE3(getdents64, unsigned int, fd,
68139 if (!f.file)
68140 return -EBADF;
68141
68142+ buf.file = f.file;
68143 error = iterate_dir(f.file, &buf.ctx);
68144 if (error >= 0)
68145 error = buf.error;
68146diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
68147index 4d24d17..4f8c09e 100644
68148--- a/fs/compat_binfmt_elf.c
68149+++ b/fs/compat_binfmt_elf.c
68150@@ -30,11 +30,13 @@
68151 #undef elf_phdr
68152 #undef elf_shdr
68153 #undef elf_note
68154+#undef elf_dyn
68155 #undef elf_addr_t
68156 #define elfhdr elf32_hdr
68157 #define elf_phdr elf32_phdr
68158 #define elf_shdr elf32_shdr
68159 #define elf_note elf32_note
68160+#define elf_dyn Elf32_Dyn
68161 #define elf_addr_t Elf32_Addr
68162
68163 /*
68164diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
68165index afec645..9c65620 100644
68166--- a/fs/compat_ioctl.c
68167+++ b/fs/compat_ioctl.c
68168@@ -621,7 +621,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
68169 return -EFAULT;
68170 if (__get_user(udata, &ss32->iomem_base))
68171 return -EFAULT;
68172- ss.iomem_base = compat_ptr(udata);
68173+ ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
68174 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
68175 __get_user(ss.port_high, &ss32->port_high))
68176 return -EFAULT;
68177@@ -703,8 +703,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
68178 for (i = 0; i < nmsgs; i++) {
68179 if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
68180 return -EFAULT;
68181- if (get_user(datap, &umsgs[i].buf) ||
68182- put_user(compat_ptr(datap), &tmsgs[i].buf))
68183+ if (get_user(datap, (compat_caddr_t __user *)&umsgs[i].buf) ||
68184+ put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
68185 return -EFAULT;
68186 }
68187 return sys_ioctl(fd, cmd, (unsigned long)tdata);
68188@@ -797,7 +797,7 @@ static int compat_ioctl_preallocate(struct file *file,
68189 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
68190 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
68191 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
68192- copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
68193+ copy_in_user(p->l_pad, p32->l_pad, 4*sizeof(u32)))
68194 return -EFAULT;
68195
68196 return ioctl_preallocate(file, p);
68197@@ -1618,8 +1618,8 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
68198 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
68199 {
68200 unsigned int a, b;
68201- a = *(unsigned int *)p;
68202- b = *(unsigned int *)q;
68203+ a = *(const unsigned int *)p;
68204+ b = *(const unsigned int *)q;
68205 if (a > b)
68206 return 1;
68207 if (a < b)
68208diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
68209index cf0db00..c7f70e8 100644
68210--- a/fs/configfs/dir.c
68211+++ b/fs/configfs/dir.c
68212@@ -1540,7 +1540,8 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
68213 }
68214 for (p = q->next; p != &parent_sd->s_children; p = p->next) {
68215 struct configfs_dirent *next;
68216- const char *name;
68217+ const unsigned char * name;
68218+ char d_name[sizeof(next->s_dentry->d_iname)];
68219 int len;
68220 struct inode *inode = NULL;
68221
68222@@ -1549,7 +1550,12 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
68223 continue;
68224
68225 name = configfs_get_name(next);
68226- len = strlen(name);
68227+ if (next->s_dentry && name == next->s_dentry->d_iname) {
68228+ len = next->s_dentry->d_name.len;
68229+ memcpy(d_name, name, len);
68230+ name = d_name;
68231+ } else
68232+ len = strlen(name);
68233
68234 /*
68235 * We'll have a dentry and an inode for
68236diff --git a/fs/coredump.c b/fs/coredump.c
68237index bbbe139..b76fae5 100644
68238--- a/fs/coredump.c
68239+++ b/fs/coredump.c
68240@@ -450,8 +450,8 @@ static void wait_for_dump_helpers(struct file *file)
68241 struct pipe_inode_info *pipe = file->private_data;
68242
68243 pipe_lock(pipe);
68244- pipe->readers++;
68245- pipe->writers--;
68246+ atomic_inc(&pipe->readers);
68247+ atomic_dec(&pipe->writers);
68248 wake_up_interruptible_sync(&pipe->wait);
68249 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
68250 pipe_unlock(pipe);
68251@@ -460,11 +460,11 @@ static void wait_for_dump_helpers(struct file *file)
68252 * We actually want wait_event_freezable() but then we need
68253 * to clear TIF_SIGPENDING and improve dump_interrupted().
68254 */
68255- wait_event_interruptible(pipe->wait, pipe->readers == 1);
68256+ wait_event_interruptible(pipe->wait, atomic_read(&pipe->readers) == 1);
68257
68258 pipe_lock(pipe);
68259- pipe->readers--;
68260- pipe->writers++;
68261+ atomic_dec(&pipe->readers);
68262+ atomic_inc(&pipe->writers);
68263 pipe_unlock(pipe);
68264 }
68265
68266@@ -511,7 +511,9 @@ void do_coredump(const siginfo_t *siginfo)
68267 struct files_struct *displaced;
68268 bool need_nonrelative = false;
68269 bool core_dumped = false;
68270- static atomic_t core_dump_count = ATOMIC_INIT(0);
68271+ static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
68272+ long signr = siginfo->si_signo;
68273+ int dumpable;
68274 struct coredump_params cprm = {
68275 .siginfo = siginfo,
68276 .regs = signal_pt_regs(),
68277@@ -524,12 +526,17 @@ void do_coredump(const siginfo_t *siginfo)
68278 .mm_flags = mm->flags,
68279 };
68280
68281- audit_core_dumps(siginfo->si_signo);
68282+ audit_core_dumps(signr);
68283+
68284+ dumpable = __get_dumpable(cprm.mm_flags);
68285+
68286+ if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
68287+ gr_handle_brute_attach(dumpable);
68288
68289 binfmt = mm->binfmt;
68290 if (!binfmt || !binfmt->core_dump)
68291 goto fail;
68292- if (!__get_dumpable(cprm.mm_flags))
68293+ if (!dumpable)
68294 goto fail;
68295
68296 cred = prepare_creds();
68297@@ -548,7 +555,7 @@ void do_coredump(const siginfo_t *siginfo)
68298 need_nonrelative = true;
68299 }
68300
68301- retval = coredump_wait(siginfo->si_signo, &core_state);
68302+ retval = coredump_wait(signr, &core_state);
68303 if (retval < 0)
68304 goto fail_creds;
68305
68306@@ -591,7 +598,7 @@ void do_coredump(const siginfo_t *siginfo)
68307 }
68308 cprm.limit = RLIM_INFINITY;
68309
68310- dump_count = atomic_inc_return(&core_dump_count);
68311+ dump_count = atomic_inc_return_unchecked(&core_dump_count);
68312 if (core_pipe_limit && (core_pipe_limit < dump_count)) {
68313 printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
68314 task_tgid_vnr(current), current->comm);
68315@@ -623,6 +630,8 @@ void do_coredump(const siginfo_t *siginfo)
68316 } else {
68317 struct inode *inode;
68318
68319+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
68320+
68321 if (cprm.limit < binfmt->min_coredump)
68322 goto fail_unlock;
68323
68324@@ -681,7 +690,7 @@ close_fail:
68325 filp_close(cprm.file, NULL);
68326 fail_dropcount:
68327 if (ispipe)
68328- atomic_dec(&core_dump_count);
68329+ atomic_dec_unchecked(&core_dump_count);
68330 fail_unlock:
68331 kfree(cn.corename);
68332 coredump_finish(mm, core_dumped);
68333@@ -702,6 +711,8 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
68334 struct file *file = cprm->file;
68335 loff_t pos = file->f_pos;
68336 ssize_t n;
68337+
68338+ gr_learn_resource(current, RLIMIT_CORE, cprm->written + nr, 1);
68339 if (cprm->written + nr > cprm->limit)
68340 return 0;
68341 while (nr) {
68342diff --git a/fs/dcache.c b/fs/dcache.c
68343index c71e373..5c1f656 100644
68344--- a/fs/dcache.c
68345+++ b/fs/dcache.c
68346@@ -511,7 +511,7 @@ static void __dentry_kill(struct dentry *dentry)
68347 * dentry_iput drops the locks, at which point nobody (except
68348 * transient RCU lookups) can reach this dentry.
68349 */
68350- BUG_ON(dentry->d_lockref.count > 0);
68351+ BUG_ON(__lockref_read(&dentry->d_lockref) > 0);
68352 this_cpu_dec(nr_dentry);
68353 if (dentry->d_op && dentry->d_op->d_release)
68354 dentry->d_op->d_release(dentry);
68355@@ -564,7 +564,7 @@ static inline struct dentry *lock_parent(struct dentry *dentry)
68356 struct dentry *parent = dentry->d_parent;
68357 if (IS_ROOT(dentry))
68358 return NULL;
68359- if (unlikely(dentry->d_lockref.count < 0))
68360+ if (unlikely(__lockref_read(&dentry->d_lockref) < 0))
68361 return NULL;
68362 if (likely(spin_trylock(&parent->d_lock)))
68363 return parent;
68364@@ -626,8 +626,8 @@ static inline bool fast_dput(struct dentry *dentry)
68365 */
68366 if (unlikely(ret < 0)) {
68367 spin_lock(&dentry->d_lock);
68368- if (dentry->d_lockref.count > 1) {
68369- dentry->d_lockref.count--;
68370+ if (__lockref_read(&dentry->d_lockref) > 1) {
68371+ __lockref_dec(&dentry->d_lockref);
68372 spin_unlock(&dentry->d_lock);
68373 return 1;
68374 }
68375@@ -682,7 +682,7 @@ static inline bool fast_dput(struct dentry *dentry)
68376 * else could have killed it and marked it dead. Either way, we
68377 * don't need to do anything else.
68378 */
68379- if (dentry->d_lockref.count) {
68380+ if (__lockref_read(&dentry->d_lockref)) {
68381 spin_unlock(&dentry->d_lock);
68382 return 1;
68383 }
68384@@ -692,7 +692,7 @@ static inline bool fast_dput(struct dentry *dentry)
68385 * lock, and we just tested that it was zero, so we can just
68386 * set it to 1.
68387 */
68388- dentry->d_lockref.count = 1;
68389+ __lockref_set(&dentry->d_lockref, 1);
68390 return 0;
68391 }
68392
68393@@ -751,7 +751,7 @@ repeat:
68394 dentry->d_flags |= DCACHE_REFERENCED;
68395 dentry_lru_add(dentry);
68396
68397- dentry->d_lockref.count--;
68398+ __lockref_dec(&dentry->d_lockref);
68399 spin_unlock(&dentry->d_lock);
68400 return;
68401
68402@@ -766,7 +766,7 @@ EXPORT_SYMBOL(dput);
68403 /* This must be called with d_lock held */
68404 static inline void __dget_dlock(struct dentry *dentry)
68405 {
68406- dentry->d_lockref.count++;
68407+ __lockref_inc(&dentry->d_lockref);
68408 }
68409
68410 static inline void __dget(struct dentry *dentry)
68411@@ -807,8 +807,8 @@ repeat:
68412 goto repeat;
68413 }
68414 rcu_read_unlock();
68415- BUG_ON(!ret->d_lockref.count);
68416- ret->d_lockref.count++;
68417+ BUG_ON(!__lockref_read(&ret->d_lockref));
68418+ __lockref_inc(&ret->d_lockref);
68419 spin_unlock(&ret->d_lock);
68420 return ret;
68421 }
68422@@ -886,9 +886,9 @@ restart:
68423 spin_lock(&inode->i_lock);
68424 hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
68425 spin_lock(&dentry->d_lock);
68426- if (!dentry->d_lockref.count) {
68427+ if (!__lockref_read(&dentry->d_lockref)) {
68428 struct dentry *parent = lock_parent(dentry);
68429- if (likely(!dentry->d_lockref.count)) {
68430+ if (likely(!__lockref_read(&dentry->d_lockref))) {
68431 __dentry_kill(dentry);
68432 dput(parent);
68433 goto restart;
68434@@ -923,7 +923,7 @@ static void shrink_dentry_list(struct list_head *list)
68435 * We found an inuse dentry which was not removed from
68436 * the LRU because of laziness during lookup. Do not free it.
68437 */
68438- if (dentry->d_lockref.count > 0) {
68439+ if (__lockref_read(&dentry->d_lockref) > 0) {
68440 spin_unlock(&dentry->d_lock);
68441 if (parent)
68442 spin_unlock(&parent->d_lock);
68443@@ -961,8 +961,8 @@ static void shrink_dentry_list(struct list_head *list)
68444 dentry = parent;
68445 while (dentry && !lockref_put_or_lock(&dentry->d_lockref)) {
68446 parent = lock_parent(dentry);
68447- if (dentry->d_lockref.count != 1) {
68448- dentry->d_lockref.count--;
68449+ if (__lockref_read(&dentry->d_lockref) != 1) {
68450+ __lockref_inc(&dentry->d_lockref);
68451 spin_unlock(&dentry->d_lock);
68452 if (parent)
68453 spin_unlock(&parent->d_lock);
68454@@ -1002,7 +1002,7 @@ static enum lru_status dentry_lru_isolate(struct list_head *item,
68455 * counts, just remove them from the LRU. Otherwise give them
68456 * another pass through the LRU.
68457 */
68458- if (dentry->d_lockref.count) {
68459+ if (__lockref_read(&dentry->d_lockref)) {
68460 d_lru_isolate(lru, dentry);
68461 spin_unlock(&dentry->d_lock);
68462 return LRU_REMOVED;
68463@@ -1336,7 +1336,7 @@ static enum d_walk_ret select_collect(void *_data, struct dentry *dentry)
68464 } else {
68465 if (dentry->d_flags & DCACHE_LRU_LIST)
68466 d_lru_del(dentry);
68467- if (!dentry->d_lockref.count) {
68468+ if (!__lockref_read(&dentry->d_lockref)) {
68469 d_shrink_add(dentry, &data->dispose);
68470 data->found++;
68471 }
68472@@ -1384,7 +1384,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
68473 return D_WALK_CONTINUE;
68474
68475 /* root with refcount 1 is fine */
68476- if (dentry == _data && dentry->d_lockref.count == 1)
68477+ if (dentry == _data && __lockref_read(&dentry->d_lockref) == 1)
68478 return D_WALK_CONTINUE;
68479
68480 printk(KERN_ERR "BUG: Dentry %p{i=%lx,n=%pd} "
68481@@ -1393,7 +1393,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
68482 dentry->d_inode ?
68483 dentry->d_inode->i_ino : 0UL,
68484 dentry,
68485- dentry->d_lockref.count,
68486+ __lockref_read(&dentry->d_lockref),
68487 dentry->d_sb->s_type->name,
68488 dentry->d_sb->s_id);
68489 WARN_ON(1);
68490@@ -1534,7 +1534,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68491 dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
68492 if (name->len > DNAME_INLINE_LEN-1) {
68493 size_t size = offsetof(struct external_name, name[1]);
68494- struct external_name *p = kmalloc(size + name->len, GFP_KERNEL);
68495+ struct external_name *p = kmalloc(round_up(size + name->len, sizeof(unsigned long)), GFP_KERNEL);
68496 if (!p) {
68497 kmem_cache_free(dentry_cache, dentry);
68498 return NULL;
68499@@ -1557,7 +1557,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68500 smp_wmb();
68501 dentry->d_name.name = dname;
68502
68503- dentry->d_lockref.count = 1;
68504+ __lockref_set(&dentry->d_lockref, 1);
68505 dentry->d_flags = 0;
68506 spin_lock_init(&dentry->d_lock);
68507 seqcount_init(&dentry->d_seq);
68508@@ -1566,6 +1566,9 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68509 dentry->d_sb = sb;
68510 dentry->d_op = NULL;
68511 dentry->d_fsdata = NULL;
68512+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
68513+ atomic_set(&dentry->chroot_refcnt, 0);
68514+#endif
68515 INIT_HLIST_BL_NODE(&dentry->d_hash);
68516 INIT_LIST_HEAD(&dentry->d_lru);
68517 INIT_LIST_HEAD(&dentry->d_subdirs);
68518@@ -2290,7 +2293,7 @@ struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name)
68519 goto next;
68520 }
68521
68522- dentry->d_lockref.count++;
68523+ __lockref_inc(&dentry->d_lockref);
68524 found = dentry;
68525 spin_unlock(&dentry->d_lock);
68526 break;
68527@@ -2358,7 +2361,7 @@ again:
68528 spin_lock(&dentry->d_lock);
68529 inode = dentry->d_inode;
68530 isdir = S_ISDIR(inode->i_mode);
68531- if (dentry->d_lockref.count == 1) {
68532+ if (__lockref_read(&dentry->d_lockref) == 1) {
68533 if (!spin_trylock(&inode->i_lock)) {
68534 spin_unlock(&dentry->d_lock);
68535 cpu_relax();
68536@@ -3311,7 +3314,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
68537
68538 if (!(dentry->d_flags & DCACHE_GENOCIDE)) {
68539 dentry->d_flags |= DCACHE_GENOCIDE;
68540- dentry->d_lockref.count--;
68541+ __lockref_dec(&dentry->d_lockref);
68542 }
68543 }
68544 return D_WALK_CONTINUE;
68545@@ -3427,7 +3430,8 @@ void __init vfs_caches_init(unsigned long mempages)
68546 mempages -= reserve;
68547
68548 names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
68549- SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
68550+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY|
68551+ SLAB_NO_SANITIZE, NULL);
68552
68553 dcache_init();
68554 inode_init();
68555diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
68556index 96400ab..906103d 100644
68557--- a/fs/debugfs/inode.c
68558+++ b/fs/debugfs/inode.c
68559@@ -386,6 +386,10 @@ struct dentry *debugfs_create_file_size(const char *name, umode_t mode,
68560 }
68561 EXPORT_SYMBOL_GPL(debugfs_create_file_size);
68562
68563+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68564+extern int grsec_enable_sysfs_restrict;
68565+#endif
68566+
68567 /**
68568 * debugfs_create_dir - create a directory in the debugfs filesystem
68569 * @name: a pointer to a string containing the name of the directory to
68570@@ -404,6 +408,10 @@ EXPORT_SYMBOL_GPL(debugfs_create_file_size);
68571 * If debugfs is not enabled in the kernel, the value -%ENODEV will be
68572 * returned.
68573 */
68574+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68575+extern int grsec_enable_sysfs_restrict;
68576+#endif
68577+
68578 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
68579 {
68580 struct dentry *dentry = start_creating(name, parent);
68581@@ -416,7 +424,12 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
68582 if (unlikely(!inode))
68583 return failed_creating(dentry);
68584
68585- inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
68586+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68587+ if (grsec_enable_sysfs_restrict)
68588+ inode->i_mode = S_IFDIR | S_IRWXU;
68589+ else
68590+#endif
68591+ inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
68592 inode->i_op = &simple_dir_inode_operations;
68593 inode->i_fop = &simple_dir_operations;
68594
68595diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
68596index b08b518..d6acffa 100644
68597--- a/fs/ecryptfs/inode.c
68598+++ b/fs/ecryptfs/inode.c
68599@@ -663,7 +663,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
68600 old_fs = get_fs();
68601 set_fs(get_ds());
68602 rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
68603- (char __user *)lower_buf,
68604+ (char __force_user *)lower_buf,
68605 PATH_MAX);
68606 set_fs(old_fs);
68607 if (rc < 0)
68608diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
68609index e4141f2..d8263e8 100644
68610--- a/fs/ecryptfs/miscdev.c
68611+++ b/fs/ecryptfs/miscdev.c
68612@@ -304,7 +304,7 @@ check_list:
68613 goto out_unlock_msg_ctx;
68614 i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
68615 if (msg_ctx->msg) {
68616- if (copy_to_user(&buf[i], packet_length, packet_length_size))
68617+ if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
68618 goto out_unlock_msg_ctx;
68619 i += packet_length_size;
68620 if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
68621diff --git a/fs/exec.c b/fs/exec.c
68622index 00400cf..b9d927b 100644
68623--- a/fs/exec.c
68624+++ b/fs/exec.c
68625@@ -56,8 +56,20 @@
68626 #include <linux/pipe_fs_i.h>
68627 #include <linux/oom.h>
68628 #include <linux/compat.h>
68629+#include <linux/random.h>
68630+#include <linux/seq_file.h>
68631+#include <linux/coredump.h>
68632+#include <linux/mman.h>
68633+
68634+#ifdef CONFIG_PAX_REFCOUNT
68635+#include <linux/kallsyms.h>
68636+#include <linux/kdebug.h>
68637+#endif
68638+
68639+#include <trace/events/fs.h>
68640
68641 #include <asm/uaccess.h>
68642+#include <asm/sections.h>
68643 #include <asm/mmu_context.h>
68644 #include <asm/tlb.h>
68645
68646@@ -66,19 +78,34 @@
68647
68648 #include <trace/events/sched.h>
68649
68650+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
68651+void __weak pax_set_initial_flags(struct linux_binprm *bprm)
68652+{
68653+ 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");
68654+}
68655+#endif
68656+
68657+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
68658+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
68659+EXPORT_SYMBOL(pax_set_initial_flags_func);
68660+#endif
68661+
68662 int suid_dumpable = 0;
68663
68664 static LIST_HEAD(formats);
68665 static DEFINE_RWLOCK(binfmt_lock);
68666
68667+extern int gr_process_kernel_exec_ban(void);
68668+extern int gr_process_suid_exec_ban(const struct linux_binprm *bprm);
68669+
68670 void __register_binfmt(struct linux_binfmt * fmt, int insert)
68671 {
68672 BUG_ON(!fmt);
68673 if (WARN_ON(!fmt->load_binary))
68674 return;
68675 write_lock(&binfmt_lock);
68676- insert ? list_add(&fmt->lh, &formats) :
68677- list_add_tail(&fmt->lh, &formats);
68678+ insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
68679+ pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
68680 write_unlock(&binfmt_lock);
68681 }
68682
68683@@ -87,7 +114,7 @@ EXPORT_SYMBOL(__register_binfmt);
68684 void unregister_binfmt(struct linux_binfmt * fmt)
68685 {
68686 write_lock(&binfmt_lock);
68687- list_del(&fmt->lh);
68688+ pax_list_del((struct list_head *)&fmt->lh);
68689 write_unlock(&binfmt_lock);
68690 }
68691
68692@@ -183,18 +210,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
68693 int write)
68694 {
68695 struct page *page;
68696- int ret;
68697
68698-#ifdef CONFIG_STACK_GROWSUP
68699- if (write) {
68700- ret = expand_downwards(bprm->vma, pos);
68701- if (ret < 0)
68702- return NULL;
68703- }
68704-#endif
68705- ret = get_user_pages(current, bprm->mm, pos,
68706- 1, write, 1, &page, NULL);
68707- if (ret <= 0)
68708+ if (0 > expand_downwards(bprm->vma, pos))
68709+ return NULL;
68710+ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
68711 return NULL;
68712
68713 if (write) {
68714@@ -210,6 +229,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
68715 if (size <= ARG_MAX)
68716 return page;
68717
68718+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
68719+ // only allow 512KB for argv+env on suid/sgid binaries
68720+ // to prevent easy ASLR exhaustion
68721+ if (((!uid_eq(bprm->cred->euid, current_euid())) ||
68722+ (!gid_eq(bprm->cred->egid, current_egid()))) &&
68723+ (size > (512 * 1024))) {
68724+ put_page(page);
68725+ return NULL;
68726+ }
68727+#endif
68728+
68729 /*
68730 * Limit to 1/4-th the stack size for the argv+env strings.
68731 * This ensures that:
68732@@ -269,6 +299,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
68733 vma->vm_end = STACK_TOP_MAX;
68734 vma->vm_start = vma->vm_end - PAGE_SIZE;
68735 vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
68736+
68737+#ifdef CONFIG_PAX_SEGMEXEC
68738+ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
68739+#endif
68740+
68741 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
68742 INIT_LIST_HEAD(&vma->anon_vma_chain);
68743
68744@@ -280,6 +315,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
68745 arch_bprm_mm_init(mm, vma);
68746 up_write(&mm->mmap_sem);
68747 bprm->p = vma->vm_end - sizeof(void *);
68748+
68749+#ifdef CONFIG_PAX_RANDUSTACK
68750+ if (randomize_va_space)
68751+ bprm->p ^= prandom_u32() & ~PAGE_MASK;
68752+#endif
68753+
68754 return 0;
68755 err:
68756 up_write(&mm->mmap_sem);
68757@@ -396,7 +437,7 @@ struct user_arg_ptr {
68758 } ptr;
68759 };
68760
68761-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68762+const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68763 {
68764 const char __user *native;
68765
68766@@ -405,14 +446,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68767 compat_uptr_t compat;
68768
68769 if (get_user(compat, argv.ptr.compat + nr))
68770- return ERR_PTR(-EFAULT);
68771+ return (const char __force_user *)ERR_PTR(-EFAULT);
68772
68773 return compat_ptr(compat);
68774 }
68775 #endif
68776
68777 if (get_user(native, argv.ptr.native + nr))
68778- return ERR_PTR(-EFAULT);
68779+ return (const char __force_user *)ERR_PTR(-EFAULT);
68780
68781 return native;
68782 }
68783@@ -431,7 +472,7 @@ static int count(struct user_arg_ptr argv, int max)
68784 if (!p)
68785 break;
68786
68787- if (IS_ERR(p))
68788+ if (IS_ERR((const char __force_kernel *)p))
68789 return -EFAULT;
68790
68791 if (i >= max)
68792@@ -466,7 +507,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
68793
68794 ret = -EFAULT;
68795 str = get_user_arg_ptr(argv, argc);
68796- if (IS_ERR(str))
68797+ if (IS_ERR((const char __force_kernel *)str))
68798 goto out;
68799
68800 len = strnlen_user(str, MAX_ARG_STRLEN);
68801@@ -548,7 +589,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
68802 int r;
68803 mm_segment_t oldfs = get_fs();
68804 struct user_arg_ptr argv = {
68805- .ptr.native = (const char __user *const __user *)__argv,
68806+ .ptr.native = (const char __user * const __force_user *)__argv,
68807 };
68808
68809 set_fs(KERNEL_DS);
68810@@ -583,7 +624,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
68811 unsigned long new_end = old_end - shift;
68812 struct mmu_gather tlb;
68813
68814- BUG_ON(new_start > new_end);
68815+ if (new_start >= new_end || new_start < mmap_min_addr)
68816+ return -ENOMEM;
68817
68818 /*
68819 * ensure there are no vmas between where we want to go
68820@@ -592,6 +634,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
68821 if (vma != find_vma(mm, new_start))
68822 return -EFAULT;
68823
68824+#ifdef CONFIG_PAX_SEGMEXEC
68825+ BUG_ON(pax_find_mirror_vma(vma));
68826+#endif
68827+
68828 /*
68829 * cover the whole range: [new_start, old_end)
68830 */
68831@@ -672,10 +718,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
68832 stack_top = arch_align_stack(stack_top);
68833 stack_top = PAGE_ALIGN(stack_top);
68834
68835- if (unlikely(stack_top < mmap_min_addr) ||
68836- unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
68837- return -ENOMEM;
68838-
68839 stack_shift = vma->vm_end - stack_top;
68840
68841 bprm->p -= stack_shift;
68842@@ -687,8 +729,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
68843 bprm->exec -= stack_shift;
68844
68845 down_write(&mm->mmap_sem);
68846+
68847+ /* Move stack pages down in memory. */
68848+ if (stack_shift) {
68849+ ret = shift_arg_pages(vma, stack_shift);
68850+ if (ret)
68851+ goto out_unlock;
68852+ }
68853+
68854 vm_flags = VM_STACK_FLAGS;
68855
68856+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
68857+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
68858+ vm_flags &= ~VM_EXEC;
68859+
68860+#ifdef CONFIG_PAX_MPROTECT
68861+ if (mm->pax_flags & MF_PAX_MPROTECT)
68862+ vm_flags &= ~VM_MAYEXEC;
68863+#endif
68864+
68865+ }
68866+#endif
68867+
68868 /*
68869 * Adjust stack execute permissions; explicitly enable for
68870 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
68871@@ -707,13 +769,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
68872 goto out_unlock;
68873 BUG_ON(prev != vma);
68874
68875- /* Move stack pages down in memory. */
68876- if (stack_shift) {
68877- ret = shift_arg_pages(vma, stack_shift);
68878- if (ret)
68879- goto out_unlock;
68880- }
68881-
68882 /* mprotect_fixup is overkill to remove the temporary stack flags */
68883 vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
68884
68885@@ -737,6 +792,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
68886 #endif
68887 current->mm->start_stack = bprm->p;
68888 ret = expand_stack(vma, stack_base);
68889+
68890+#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
68891+ if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
68892+ unsigned long size;
68893+ vm_flags_t vm_flags;
68894+
68895+ size = STACK_TOP - vma->vm_end;
68896+ vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
68897+
68898+ ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
68899+
68900+#ifdef CONFIG_X86
68901+ if (!ret) {
68902+ size = PAGE_SIZE + mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
68903+ ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
68904+ }
68905+#endif
68906+
68907+ }
68908+#endif
68909+
68910 if (ret)
68911 ret = -EFAULT;
68912
68913@@ -781,8 +857,10 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags)
68914 if (err)
68915 goto exit;
68916
68917- if (name->name[0] != '\0')
68918+ if (name->name[0] != '\0') {
68919 fsnotify_open(file);
68920+ trace_open_exec(name->name);
68921+ }
68922
68923 out:
68924 return file;
68925@@ -815,7 +893,7 @@ int kernel_read(struct file *file, loff_t offset,
68926 old_fs = get_fs();
68927 set_fs(get_ds());
68928 /* The cast to a user pointer is valid due to the set_fs() */
68929- result = vfs_read(file, (void __user *)addr, count, &pos);
68930+ result = vfs_read(file, (void __force_user *)addr, count, &pos);
68931 set_fs(old_fs);
68932 return result;
68933 }
68934@@ -860,6 +938,7 @@ static int exec_mmap(struct mm_struct *mm)
68935 tsk->mm = mm;
68936 tsk->active_mm = mm;
68937 activate_mm(active_mm, mm);
68938+ populate_stack();
68939 tsk->mm->vmacache_seqnum = 0;
68940 vmacache_flush(tsk);
68941 task_unlock(tsk);
68942@@ -926,10 +1005,14 @@ static int de_thread(struct task_struct *tsk)
68943 if (!thread_group_leader(tsk)) {
68944 struct task_struct *leader = tsk->group_leader;
68945
68946- sig->notify_count = -1; /* for exit_notify() */
68947 for (;;) {
68948 threadgroup_change_begin(tsk);
68949 write_lock_irq(&tasklist_lock);
68950+ /*
68951+ * Do this under tasklist_lock to ensure that
68952+ * exit_notify() can't miss ->group_exit_task
68953+ */
68954+ sig->notify_count = -1;
68955 if (likely(leader->exit_state))
68956 break;
68957 __set_current_state(TASK_KILLABLE);
68958@@ -1258,7 +1341,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
68959 }
68960 rcu_read_unlock();
68961
68962- if (p->fs->users > n_fs)
68963+ if (atomic_read(&p->fs->users) > n_fs)
68964 bprm->unsafe |= LSM_UNSAFE_SHARE;
68965 else
68966 p->fs->in_exec = 1;
68967@@ -1459,6 +1542,31 @@ static int exec_binprm(struct linux_binprm *bprm)
68968 return ret;
68969 }
68970
68971+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
68972+static DEFINE_PER_CPU(u64, exec_counter);
68973+static int __init init_exec_counters(void)
68974+{
68975+ unsigned int cpu;
68976+
68977+ for_each_possible_cpu(cpu) {
68978+ per_cpu(exec_counter, cpu) = (u64)cpu;
68979+ }
68980+
68981+ return 0;
68982+}
68983+early_initcall(init_exec_counters);
68984+static inline void increment_exec_counter(void)
68985+{
68986+ BUILD_BUG_ON(NR_CPUS > (1 << 16));
68987+ current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
68988+}
68989+#else
68990+static inline void increment_exec_counter(void) {}
68991+#endif
68992+
68993+extern void gr_handle_exec_args(struct linux_binprm *bprm,
68994+ struct user_arg_ptr argv);
68995+
68996 /*
68997 * sys_execve() executes a new program.
68998 */
68999@@ -1467,6 +1575,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69000 struct user_arg_ptr envp,
69001 int flags)
69002 {
69003+#ifdef CONFIG_GRKERNSEC
69004+ struct file *old_exec_file;
69005+ struct acl_subject_label *old_acl;
69006+ struct rlimit old_rlim[RLIM_NLIMITS];
69007+#endif
69008 char *pathbuf = NULL;
69009 struct linux_binprm *bprm;
69010 struct file *file;
69011@@ -1476,6 +1589,8 @@ static int do_execveat_common(int fd, struct filename *filename,
69012 if (IS_ERR(filename))
69013 return PTR_ERR(filename);
69014
69015+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current_user()->processes), 1);
69016+
69017 /*
69018 * We move the actual failure in case of RLIMIT_NPROC excess from
69019 * set*uid() to execve() because too many poorly written programs
69020@@ -1513,6 +1628,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69021 if (IS_ERR(file))
69022 goto out_unmark;
69023
69024+ if (gr_ptrace_readexec(file, bprm->unsafe)) {
69025+ retval = -EPERM;
69026+ goto out_unmark;
69027+ }
69028+
69029 sched_exec();
69030
69031 bprm->file = file;
69032@@ -1539,6 +1659,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69033 }
69034 bprm->interp = bprm->filename;
69035
69036+ if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
69037+ retval = -EACCES;
69038+ goto out_unmark;
69039+ }
69040+
69041 retval = bprm_mm_init(bprm);
69042 if (retval)
69043 goto out_unmark;
69044@@ -1555,24 +1680,70 @@ static int do_execveat_common(int fd, struct filename *filename,
69045 if (retval < 0)
69046 goto out;
69047
69048+#ifdef CONFIG_GRKERNSEC
69049+ old_acl = current->acl;
69050+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
69051+ old_exec_file = current->exec_file;
69052+ get_file(file);
69053+ current->exec_file = file;
69054+#endif
69055+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
69056+ /* limit suid stack to 8MB
69057+ * we saved the old limits above and will restore them if this exec fails
69058+ */
69059+ if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
69060+ (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
69061+ current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
69062+#endif
69063+
69064+ if (gr_process_kernel_exec_ban() || gr_process_suid_exec_ban(bprm)) {
69065+ retval = -EPERM;
69066+ goto out_fail;
69067+ }
69068+
69069+ if (!gr_tpe_allow(file)) {
69070+ retval = -EACCES;
69071+ goto out_fail;
69072+ }
69073+
69074+ if (gr_check_crash_exec(file)) {
69075+ retval = -EACCES;
69076+ goto out_fail;
69077+ }
69078+
69079+ retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
69080+ bprm->unsafe);
69081+ if (retval < 0)
69082+ goto out_fail;
69083+
69084 retval = copy_strings_kernel(1, &bprm->filename, bprm);
69085 if (retval < 0)
69086- goto out;
69087+ goto out_fail;
69088
69089 bprm->exec = bprm->p;
69090 retval = copy_strings(bprm->envc, envp, bprm);
69091 if (retval < 0)
69092- goto out;
69093+ goto out_fail;
69094
69095 retval = copy_strings(bprm->argc, argv, bprm);
69096 if (retval < 0)
69097- goto out;
69098+ goto out_fail;
69099+
69100+ gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
69101+
69102+ gr_handle_exec_args(bprm, argv);
69103
69104 retval = exec_binprm(bprm);
69105 if (retval < 0)
69106- goto out;
69107+ goto out_fail;
69108+#ifdef CONFIG_GRKERNSEC
69109+ if (old_exec_file)
69110+ fput(old_exec_file);
69111+#endif
69112
69113 /* execve succeeded */
69114+
69115+ increment_exec_counter();
69116 current->fs->in_exec = 0;
69117 current->in_execve = 0;
69118 acct_update_integrals(current);
69119@@ -1584,6 +1755,14 @@ static int do_execveat_common(int fd, struct filename *filename,
69120 put_files_struct(displaced);
69121 return retval;
69122
69123+out_fail:
69124+#ifdef CONFIG_GRKERNSEC
69125+ current->acl = old_acl;
69126+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
69127+ fput(current->exec_file);
69128+ current->exec_file = old_exec_file;
69129+#endif
69130+
69131 out:
69132 if (bprm->mm) {
69133 acct_arg_size(bprm, 0);
69134@@ -1730,3 +1909,312 @@ COMPAT_SYSCALL_DEFINE5(execveat, int, fd,
69135 argv, envp, flags);
69136 }
69137 #endif
69138+
69139+int pax_check_flags(unsigned long *flags)
69140+{
69141+ int retval = 0;
69142+
69143+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
69144+ if (*flags & MF_PAX_SEGMEXEC)
69145+ {
69146+ *flags &= ~MF_PAX_SEGMEXEC;
69147+ retval = -EINVAL;
69148+ }
69149+#endif
69150+
69151+ if ((*flags & MF_PAX_PAGEEXEC)
69152+
69153+#ifdef CONFIG_PAX_PAGEEXEC
69154+ && (*flags & MF_PAX_SEGMEXEC)
69155+#endif
69156+
69157+ )
69158+ {
69159+ *flags &= ~MF_PAX_PAGEEXEC;
69160+ retval = -EINVAL;
69161+ }
69162+
69163+ if ((*flags & MF_PAX_MPROTECT)
69164+
69165+#ifdef CONFIG_PAX_MPROTECT
69166+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
69167+#endif
69168+
69169+ )
69170+ {
69171+ *flags &= ~MF_PAX_MPROTECT;
69172+ retval = -EINVAL;
69173+ }
69174+
69175+ if ((*flags & MF_PAX_EMUTRAMP)
69176+
69177+#ifdef CONFIG_PAX_EMUTRAMP
69178+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
69179+#endif
69180+
69181+ )
69182+ {
69183+ *flags &= ~MF_PAX_EMUTRAMP;
69184+ retval = -EINVAL;
69185+ }
69186+
69187+ return retval;
69188+}
69189+
69190+EXPORT_SYMBOL(pax_check_flags);
69191+
69192+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
69193+char *pax_get_path(const struct path *path, char *buf, int buflen)
69194+{
69195+ char *pathname = d_path(path, buf, buflen);
69196+
69197+ if (IS_ERR(pathname))
69198+ goto toolong;
69199+
69200+ pathname = mangle_path(buf, pathname, "\t\n\\");
69201+ if (!pathname)
69202+ goto toolong;
69203+
69204+ *pathname = 0;
69205+ return buf;
69206+
69207+toolong:
69208+ return "<path too long>";
69209+}
69210+EXPORT_SYMBOL(pax_get_path);
69211+
69212+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
69213+{
69214+ struct task_struct *tsk = current;
69215+ struct mm_struct *mm = current->mm;
69216+ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
69217+ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
69218+ char *path_exec = NULL;
69219+ char *path_fault = NULL;
69220+ unsigned long start = 0UL, end = 0UL, offset = 0UL;
69221+ siginfo_t info = { };
69222+
69223+ if (buffer_exec && buffer_fault) {
69224+ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
69225+
69226+ down_read(&mm->mmap_sem);
69227+ vma = mm->mmap;
69228+ while (vma && (!vma_exec || !vma_fault)) {
69229+ if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
69230+ vma_exec = vma;
69231+ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
69232+ vma_fault = vma;
69233+ vma = vma->vm_next;
69234+ }
69235+ if (vma_exec)
69236+ path_exec = pax_get_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
69237+ if (vma_fault) {
69238+ start = vma_fault->vm_start;
69239+ end = vma_fault->vm_end;
69240+ offset = vma_fault->vm_pgoff << PAGE_SHIFT;
69241+ if (vma_fault->vm_file)
69242+ path_fault = pax_get_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
69243+ else if ((unsigned long)pc >= mm->start_brk && (unsigned long)pc < mm->brk)
69244+ path_fault = "<heap>";
69245+ else if (vma_fault->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
69246+ path_fault = "<stack>";
69247+ else
69248+ path_fault = "<anonymous mapping>";
69249+ }
69250+ up_read(&mm->mmap_sem);
69251+ }
69252+ if (tsk->signal->curr_ip)
69253+ printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
69254+ else
69255+ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
69256+ 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),
69257+ from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
69258+ free_page((unsigned long)buffer_exec);
69259+ free_page((unsigned long)buffer_fault);
69260+ pax_report_insns(regs, pc, sp);
69261+ info.si_signo = SIGKILL;
69262+ info.si_errno = 0;
69263+ info.si_code = SI_KERNEL;
69264+ info.si_pid = 0;
69265+ info.si_uid = 0;
69266+ do_coredump(&info);
69267+}
69268+#endif
69269+
69270+#ifdef CONFIG_PAX_REFCOUNT
69271+void pax_report_refcount_overflow(struct pt_regs *regs)
69272+{
69273+ if (current->signal->curr_ip)
69274+ printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
69275+ &current->signal->curr_ip, current->comm, task_pid_nr(current),
69276+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
69277+ else
69278+ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
69279+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
69280+ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
69281+ preempt_disable();
69282+ show_regs(regs);
69283+ preempt_enable();
69284+ force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
69285+}
69286+#endif
69287+
69288+#ifdef CONFIG_PAX_USERCOPY
69289+/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
69290+static noinline int check_stack_object(const void *obj, unsigned long len)
69291+{
69292+ const void * const stack = task_stack_page(current);
69293+ const void * const stackend = stack + THREAD_SIZE;
69294+
69295+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
69296+ const void *frame = NULL;
69297+ const void *oldframe;
69298+#endif
69299+
69300+ if (obj + len < obj)
69301+ return -1;
69302+
69303+ if (obj + len <= stack || stackend <= obj)
69304+ return 0;
69305+
69306+ if (obj < stack || stackend < obj + len)
69307+ return -1;
69308+
69309+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
69310+ oldframe = __builtin_frame_address(1);
69311+ if (oldframe)
69312+ frame = __builtin_frame_address(2);
69313+ /*
69314+ low ----------------------------------------------> high
69315+ [saved bp][saved ip][args][local vars][saved bp][saved ip]
69316+ ^----------------^
69317+ allow copies only within here
69318+ */
69319+ while (stack <= frame && frame < stackend) {
69320+ /* if obj + len extends past the last frame, this
69321+ check won't pass and the next frame will be 0,
69322+ causing us to bail out and correctly report
69323+ the copy as invalid
69324+ */
69325+ if (obj + len <= frame)
69326+ return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
69327+ oldframe = frame;
69328+ frame = *(const void * const *)frame;
69329+ }
69330+ return -1;
69331+#else
69332+ return 1;
69333+#endif
69334+}
69335+
69336+static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
69337+{
69338+ if (current->signal->curr_ip)
69339+ printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
69340+ &current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
69341+ else
69342+ printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
69343+ to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
69344+ dump_stack();
69345+ gr_handle_kernel_exploit();
69346+ do_group_exit(SIGKILL);
69347+}
69348+#endif
69349+
69350+#ifdef CONFIG_PAX_USERCOPY
69351+
69352+static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
69353+{
69354+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
69355+ unsigned long textlow = ktla_ktva((unsigned long)_stext);
69356+#ifdef CONFIG_MODULES
69357+ unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
69358+#else
69359+ unsigned long texthigh = ktla_ktva((unsigned long)_etext);
69360+#endif
69361+
69362+#else
69363+ unsigned long textlow = (unsigned long)_stext;
69364+ unsigned long texthigh = (unsigned long)_etext;
69365+
69366+#ifdef CONFIG_X86_64
69367+ /* check against linear mapping as well */
69368+ if (high > (unsigned long)__va(__pa(textlow)) &&
69369+ low < (unsigned long)__va(__pa(texthigh)))
69370+ return true;
69371+#endif
69372+
69373+#endif
69374+
69375+ if (high <= textlow || low >= texthigh)
69376+ return false;
69377+ else
69378+ return true;
69379+}
69380+#endif
69381+
69382+void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size)
69383+{
69384+#ifdef CONFIG_PAX_USERCOPY
69385+ const char *type;
69386+#endif
69387+
69388+#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_X86_64)
69389+ unsigned long stackstart = (unsigned long)task_stack_page(current);
69390+ unsigned long currentsp = (unsigned long)&stackstart;
69391+ if (unlikely((currentsp < stackstart + 512 ||
69392+ currentsp >= stackstart + THREAD_SIZE) && !in_interrupt()))
69393+ BUG();
69394+#endif
69395+
69396+#ifndef CONFIG_PAX_USERCOPY_DEBUG
69397+ if (const_size)
69398+ return;
69399+#endif
69400+
69401+#ifdef CONFIG_PAX_USERCOPY
69402+ if (!n)
69403+ return;
69404+
69405+ type = check_heap_object(ptr, n);
69406+ if (!type) {
69407+ int ret = check_stack_object(ptr, n);
69408+ if (ret == 1 || ret == 2)
69409+ return;
69410+ if (ret == 0) {
69411+ if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
69412+ type = "<kernel text>";
69413+ else
69414+ return;
69415+ } else
69416+ type = "<process stack>";
69417+ }
69418+
69419+ pax_report_usercopy(ptr, n, to_user, type);
69420+#endif
69421+
69422+}
69423+EXPORT_SYMBOL(__check_object_size);
69424+
69425+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
69426+void pax_track_stack(void)
69427+{
69428+ unsigned long sp = (unsigned long)&sp;
69429+ if (sp < current_thread_info()->lowest_stack &&
69430+ sp >= (unsigned long)task_stack_page(current) + 2 * sizeof(unsigned long))
69431+ current_thread_info()->lowest_stack = sp;
69432+ if (unlikely((sp & ~(THREAD_SIZE - 1)) < (THREAD_SIZE/16)))
69433+ BUG();
69434+}
69435+EXPORT_SYMBOL(pax_track_stack);
69436+#endif
69437+
69438+#ifdef CONFIG_PAX_SIZE_OVERFLOW
69439+void __nocapture(1, 3, 4) report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
69440+{
69441+ printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
69442+ dump_stack();
69443+ do_group_exit(SIGKILL);
69444+}
69445+EXPORT_SYMBOL(report_size_overflow);
69446+#endif
69447diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
69448index 9f9992b..8b59411 100644
69449--- a/fs/ext2/balloc.c
69450+++ b/fs/ext2/balloc.c
69451@@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
69452
69453 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
69454 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
69455- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
69456+ if (free_blocks < root_blocks + 1 &&
69457 !uid_eq(sbi->s_resuid, current_fsuid()) &&
69458 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
69459- !in_group_p (sbi->s_resgid))) {
69460+ !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
69461 return 0;
69462 }
69463 return 1;
69464diff --git a/fs/ext2/super.c b/fs/ext2/super.c
69465index d0e746e..82e06f0 100644
69466--- a/fs/ext2/super.c
69467+++ b/fs/ext2/super.c
69468@@ -267,10 +267,8 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root)
69469 #ifdef CONFIG_EXT2_FS_XATTR
69470 if (test_opt(sb, XATTR_USER))
69471 seq_puts(seq, ",user_xattr");
69472- if (!test_opt(sb, XATTR_USER) &&
69473- (def_mount_opts & EXT2_DEFM_XATTR_USER)) {
69474+ if (!test_opt(sb, XATTR_USER))
69475 seq_puts(seq, ",nouser_xattr");
69476- }
69477 #endif
69478
69479 #ifdef CONFIG_EXT2_FS_POSIX_ACL
69480@@ -856,8 +854,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
69481 if (def_mount_opts & EXT2_DEFM_UID16)
69482 set_opt(sbi->s_mount_opt, NO_UID32);
69483 #ifdef CONFIG_EXT2_FS_XATTR
69484- if (def_mount_opts & EXT2_DEFM_XATTR_USER)
69485- set_opt(sbi->s_mount_opt, XATTR_USER);
69486+ /* always enable user xattrs */
69487+ set_opt(sbi->s_mount_opt, XATTR_USER);
69488 #endif
69489 #ifdef CONFIG_EXT2_FS_POSIX_ACL
69490 if (def_mount_opts & EXT2_DEFM_ACL)
69491diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
69492index 9142614..97484fa 100644
69493--- a/fs/ext2/xattr.c
69494+++ b/fs/ext2/xattr.c
69495@@ -247,7 +247,7 @@ ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
69496 struct buffer_head *bh = NULL;
69497 struct ext2_xattr_entry *entry;
69498 char *end;
69499- size_t rest = buffer_size;
69500+ size_t rest = buffer_size, total_size = 0;
69501 int error;
69502
69503 ea_idebug(inode, "buffer=%p, buffer_size=%ld",
69504@@ -305,9 +305,10 @@ bad_block: ext2_error(inode->i_sb, "ext2_xattr_list",
69505 buffer += size;
69506 }
69507 rest -= size;
69508+ total_size += size;
69509 }
69510 }
69511- error = buffer_size - rest; /* total size */
69512+ error = total_size;
69513
69514 cleanup:
69515 brelse(bh);
69516diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
69517index 158b5d4..2432610 100644
69518--- a/fs/ext3/balloc.c
69519+++ b/fs/ext3/balloc.c
69520@@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
69521
69522 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
69523 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
69524- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
69525+ if (free_blocks < root_blocks + 1 &&
69526 !use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
69527 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
69528- !in_group_p (sbi->s_resgid))) {
69529+ !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
69530 return 0;
69531 }
69532 return 1;
69533diff --git a/fs/ext3/super.c b/fs/ext3/super.c
69534index d4dbf3c..906a6fb 100644
69535--- a/fs/ext3/super.c
69536+++ b/fs/ext3/super.c
69537@@ -655,10 +655,8 @@ static int ext3_show_options(struct seq_file *seq, struct dentry *root)
69538 #ifdef CONFIG_EXT3_FS_XATTR
69539 if (test_opt(sb, XATTR_USER))
69540 seq_puts(seq, ",user_xattr");
69541- if (!test_opt(sb, XATTR_USER) &&
69542- (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
69543+ if (!test_opt(sb, XATTR_USER))
69544 seq_puts(seq, ",nouser_xattr");
69545- }
69546 #endif
69547 #ifdef CONFIG_EXT3_FS_POSIX_ACL
69548 if (test_opt(sb, POSIX_ACL))
69549@@ -1760,8 +1758,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
69550 if (def_mount_opts & EXT3_DEFM_UID16)
69551 set_opt(sbi->s_mount_opt, NO_UID32);
69552 #ifdef CONFIG_EXT3_FS_XATTR
69553- if (def_mount_opts & EXT3_DEFM_XATTR_USER)
69554- set_opt(sbi->s_mount_opt, XATTR_USER);
69555+ /* always enable user xattrs */
69556+ set_opt(sbi->s_mount_opt, XATTR_USER);
69557 #endif
69558 #ifdef CONFIG_EXT3_FS_POSIX_ACL
69559 if (def_mount_opts & EXT3_DEFM_ACL)
69560diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
69561index c6874be..f8a6ae8 100644
69562--- a/fs/ext3/xattr.c
69563+++ b/fs/ext3/xattr.c
69564@@ -330,7 +330,7 @@ static int
69565 ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
69566 char *buffer, size_t buffer_size)
69567 {
69568- size_t rest = buffer_size;
69569+ size_t rest = buffer_size, total_size = 0;
69570
69571 for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
69572 const struct xattr_handler *handler =
69573@@ -347,9 +347,10 @@ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
69574 buffer += size;
69575 }
69576 rest -= size;
69577+ total_size += size;
69578 }
69579 }
69580- return buffer_size - rest;
69581+ return total_size;
69582 }
69583
69584 static int
69585diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
69586index 83a6f49..d4e4d03 100644
69587--- a/fs/ext4/balloc.c
69588+++ b/fs/ext4/balloc.c
69589@@ -557,8 +557,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
69590 /* Hm, nope. Are (enough) root reserved clusters available? */
69591 if (uid_eq(sbi->s_resuid, current_fsuid()) ||
69592 (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
69593- capable(CAP_SYS_RESOURCE) ||
69594- (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
69595+ (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
69596+ capable_nolog(CAP_SYS_RESOURCE)) {
69597
69598 if (free_clusters >= (nclusters + dirty_clusters +
69599 resv_clusters))
69600diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
69601index f63c3d5..3c1a033 100644
69602--- a/fs/ext4/ext4.h
69603+++ b/fs/ext4/ext4.h
69604@@ -1287,19 +1287,19 @@ struct ext4_sb_info {
69605 unsigned long s_mb_last_start;
69606
69607 /* stats for buddy allocator */
69608- atomic_t s_bal_reqs; /* number of reqs with len > 1 */
69609- atomic_t s_bal_success; /* we found long enough chunks */
69610- atomic_t s_bal_allocated; /* in blocks */
69611- atomic_t s_bal_ex_scanned; /* total extents scanned */
69612- atomic_t s_bal_goals; /* goal hits */
69613- atomic_t s_bal_breaks; /* too long searches */
69614- atomic_t s_bal_2orders; /* 2^order hits */
69615+ atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */
69616+ atomic_unchecked_t s_bal_success; /* we found long enough chunks */
69617+ atomic_unchecked_t s_bal_allocated; /* in blocks */
69618+ atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */
69619+ atomic_unchecked_t s_bal_goals; /* goal hits */
69620+ atomic_unchecked_t s_bal_breaks; /* too long searches */
69621+ atomic_unchecked_t s_bal_2orders; /* 2^order hits */
69622 spinlock_t s_bal_lock;
69623 unsigned long s_mb_buddies_generated;
69624 unsigned long long s_mb_generation_time;
69625- atomic_t s_mb_lost_chunks;
69626- atomic_t s_mb_preallocated;
69627- atomic_t s_mb_discarded;
69628+ atomic_unchecked_t s_mb_lost_chunks;
69629+ atomic_unchecked_t s_mb_preallocated;
69630+ atomic_unchecked_t s_mb_discarded;
69631 atomic_t s_lock_busy;
69632
69633 /* locality groups */
69634diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
69635index 8d1e602..abf497b 100644
69636--- a/fs/ext4/mballoc.c
69637+++ b/fs/ext4/mballoc.c
69638@@ -1901,7 +1901,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
69639 BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
69640
69641 if (EXT4_SB(sb)->s_mb_stats)
69642- atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
69643+ atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
69644
69645 break;
69646 }
69647@@ -2211,7 +2211,7 @@ repeat:
69648 ac->ac_status = AC_STATUS_CONTINUE;
69649 ac->ac_flags |= EXT4_MB_HINT_FIRST;
69650 cr = 3;
69651- atomic_inc(&sbi->s_mb_lost_chunks);
69652+ atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
69653 goto repeat;
69654 }
69655 }
69656@@ -2716,25 +2716,25 @@ int ext4_mb_release(struct super_block *sb)
69657 if (sbi->s_mb_stats) {
69658 ext4_msg(sb, KERN_INFO,
69659 "mballoc: %u blocks %u reqs (%u success)",
69660- atomic_read(&sbi->s_bal_allocated),
69661- atomic_read(&sbi->s_bal_reqs),
69662- atomic_read(&sbi->s_bal_success));
69663+ atomic_read_unchecked(&sbi->s_bal_allocated),
69664+ atomic_read_unchecked(&sbi->s_bal_reqs),
69665+ atomic_read_unchecked(&sbi->s_bal_success));
69666 ext4_msg(sb, KERN_INFO,
69667 "mballoc: %u extents scanned, %u goal hits, "
69668 "%u 2^N hits, %u breaks, %u lost",
69669- atomic_read(&sbi->s_bal_ex_scanned),
69670- atomic_read(&sbi->s_bal_goals),
69671- atomic_read(&sbi->s_bal_2orders),
69672- atomic_read(&sbi->s_bal_breaks),
69673- atomic_read(&sbi->s_mb_lost_chunks));
69674+ atomic_read_unchecked(&sbi->s_bal_ex_scanned),
69675+ atomic_read_unchecked(&sbi->s_bal_goals),
69676+ atomic_read_unchecked(&sbi->s_bal_2orders),
69677+ atomic_read_unchecked(&sbi->s_bal_breaks),
69678+ atomic_read_unchecked(&sbi->s_mb_lost_chunks));
69679 ext4_msg(sb, KERN_INFO,
69680 "mballoc: %lu generated and it took %Lu",
69681 sbi->s_mb_buddies_generated,
69682 sbi->s_mb_generation_time);
69683 ext4_msg(sb, KERN_INFO,
69684 "mballoc: %u preallocated, %u discarded",
69685- atomic_read(&sbi->s_mb_preallocated),
69686- atomic_read(&sbi->s_mb_discarded));
69687+ atomic_read_unchecked(&sbi->s_mb_preallocated),
69688+ atomic_read_unchecked(&sbi->s_mb_discarded));
69689 }
69690
69691 free_percpu(sbi->s_locality_groups);
69692@@ -3190,16 +3190,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
69693 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
69694
69695 if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
69696- atomic_inc(&sbi->s_bal_reqs);
69697- atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
69698+ atomic_inc_unchecked(&sbi->s_bal_reqs);
69699+ atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
69700 if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
69701- atomic_inc(&sbi->s_bal_success);
69702- atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
69703+ atomic_inc_unchecked(&sbi->s_bal_success);
69704+ atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
69705 if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
69706 ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
69707- atomic_inc(&sbi->s_bal_goals);
69708+ atomic_inc_unchecked(&sbi->s_bal_goals);
69709 if (ac->ac_found > sbi->s_mb_max_to_scan)
69710- atomic_inc(&sbi->s_bal_breaks);
69711+ atomic_inc_unchecked(&sbi->s_bal_breaks);
69712 }
69713
69714 if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
69715@@ -3626,7 +3626,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
69716 trace_ext4_mb_new_inode_pa(ac, pa);
69717
69718 ext4_mb_use_inode_pa(ac, pa);
69719- atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
69720+ atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
69721
69722 ei = EXT4_I(ac->ac_inode);
69723 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
69724@@ -3686,7 +3686,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
69725 trace_ext4_mb_new_group_pa(ac, pa);
69726
69727 ext4_mb_use_group_pa(ac, pa);
69728- atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
69729+ atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
69730
69731 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
69732 lg = ac->ac_lg;
69733@@ -3775,7 +3775,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
69734 * from the bitmap and continue.
69735 */
69736 }
69737- atomic_add(free, &sbi->s_mb_discarded);
69738+ atomic_add_unchecked(free, &sbi->s_mb_discarded);
69739
69740 return err;
69741 }
69742@@ -3793,7 +3793,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
69743 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
69744 BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
69745 mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
69746- atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
69747+ atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
69748 trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
69749
69750 return 0;
69751diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
69752index 8313ca3..8a37d08 100644
69753--- a/fs/ext4/mmp.c
69754+++ b/fs/ext4/mmp.c
69755@@ -111,7 +111,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
69756 void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,
69757 const char *function, unsigned int line, const char *msg)
69758 {
69759- __ext4_warning(sb, function, line, msg);
69760+ __ext4_warning(sb, function, line, "%s", msg);
69761 __ext4_warning(sb, function, line,
69762 "MMP failure info: last update time: %llu, last update "
69763 "node: %s, last update device: %s\n",
69764diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
69765index 8a8ec62..1b02de5 100644
69766--- a/fs/ext4/resize.c
69767+++ b/fs/ext4/resize.c
69768@@ -413,7 +413,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69769
69770 ext4_debug("mark blocks [%llu/%u] used\n", block, count);
69771 for (count2 = count; count > 0; count -= count2, block += count2) {
69772- ext4_fsblk_t start;
69773+ ext4_fsblk_t start, diff;
69774 struct buffer_head *bh;
69775 ext4_group_t group;
69776 int err;
69777@@ -422,10 +422,6 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69778 start = ext4_group_first_block_no(sb, group);
69779 group -= flex_gd->groups[0].group;
69780
69781- count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start);
69782- if (count2 > count)
69783- count2 = count;
69784-
69785 if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {
69786 BUG_ON(flex_gd->count > 1);
69787 continue;
69788@@ -443,9 +439,15 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69789 err = ext4_journal_get_write_access(handle, bh);
69790 if (err)
69791 return err;
69792+
69793+ diff = block - start;
69794+ count2 = EXT4_BLOCKS_PER_GROUP(sb) - diff;
69795+ if (count2 > count)
69796+ count2 = count;
69797+
69798 ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
69799- block - start, count2);
69800- ext4_set_bits(bh->b_data, block - start, count2);
69801+ diff, count2);
69802+ ext4_set_bits(bh->b_data, diff, count2);
69803
69804 err = ext4_handle_dirty_metadata(handle, NULL, bh);
69805 if (unlikely(err))
69806diff --git a/fs/ext4/super.c b/fs/ext4/super.c
69807index e061e66..87bc092 100644
69808--- a/fs/ext4/super.c
69809+++ b/fs/ext4/super.c
69810@@ -1243,7 +1243,7 @@ static ext4_fsblk_t get_sb_block(void **data)
69811 }
69812
69813 #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
69814-static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
69815+static const char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
69816 "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
69817
69818 #ifdef CONFIG_QUOTA
69819@@ -2443,7 +2443,7 @@ struct ext4_attr {
69820 int offset;
69821 int deprecated_val;
69822 } u;
69823-};
69824+} __do_const;
69825
69826 static int parse_strtoull(const char *buf,
69827 unsigned long long max, unsigned long long *value)
69828diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
69829index 1e09fc7..0400dd4 100644
69830--- a/fs/ext4/xattr.c
69831+++ b/fs/ext4/xattr.c
69832@@ -399,7 +399,7 @@ static int
69833 ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
69834 char *buffer, size_t buffer_size)
69835 {
69836- size_t rest = buffer_size;
69837+ size_t rest = buffer_size, total_size = 0;
69838
69839 for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
69840 const struct xattr_handler *handler =
69841@@ -416,9 +416,10 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
69842 buffer += size;
69843 }
69844 rest -= size;
69845+ total_size += size;
69846 }
69847 }
69848- return buffer_size - rest;
69849+ return total_size;
69850 }
69851
69852 static int
69853diff --git a/fs/fcntl.c b/fs/fcntl.c
69854index ee85cd4..9dd0d20 100644
69855--- a/fs/fcntl.c
69856+++ b/fs/fcntl.c
69857@@ -102,6 +102,10 @@ void __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
69858 int force)
69859 {
69860 security_file_set_fowner(filp);
69861+ if (gr_handle_chroot_fowner(pid, type))
69862+ return;
69863+ if (gr_check_protected_task_fowner(pid, type))
69864+ return;
69865 f_modown(filp, pid, type, force);
69866 }
69867 EXPORT_SYMBOL(__f_setown);
69868diff --git a/fs/fhandle.c b/fs/fhandle.c
69869index 999ff5c..2281df9 100644
69870--- a/fs/fhandle.c
69871+++ b/fs/fhandle.c
69872@@ -8,6 +8,7 @@
69873 #include <linux/fs_struct.h>
69874 #include <linux/fsnotify.h>
69875 #include <linux/personality.h>
69876+#include <linux/grsecurity.h>
69877 #include <asm/uaccess.h>
69878 #include "internal.h"
69879 #include "mount.h"
69880@@ -67,8 +68,7 @@ static long do_sys_name_to_handle(struct path *path,
69881 } else
69882 retval = 0;
69883 /* copy the mount id */
69884- if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
69885- sizeof(*mnt_id)) ||
69886+ if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
69887 copy_to_user(ufh, handle,
69888 sizeof(struct file_handle) + handle_bytes))
69889 retval = -EFAULT;
69890@@ -175,7 +175,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
69891 * the directory. Ideally we would like CAP_DAC_SEARCH.
69892 * But we don't have that
69893 */
69894- if (!capable(CAP_DAC_READ_SEARCH)) {
69895+ if (!capable(CAP_DAC_READ_SEARCH) || !gr_chroot_fhandle()) {
69896 retval = -EPERM;
69897 goto out_err;
69898 }
69899@@ -195,8 +195,9 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
69900 goto out_err;
69901 }
69902 /* copy the full handle */
69903- if (copy_from_user(handle, ufh,
69904- sizeof(struct file_handle) +
69905+ *handle = f_handle;
69906+ if (copy_from_user(&handle->f_handle,
69907+ &ufh->f_handle,
69908 f_handle.handle_bytes)) {
69909 retval = -EFAULT;
69910 goto out_handle;
69911diff --git a/fs/file.c b/fs/file.c
69912index ee738ea..f6c15629 100644
69913--- a/fs/file.c
69914+++ b/fs/file.c
69915@@ -16,6 +16,7 @@
69916 #include <linux/slab.h>
69917 #include <linux/vmalloc.h>
69918 #include <linux/file.h>
69919+#include <linux/security.h>
69920 #include <linux/fdtable.h>
69921 #include <linux/bitops.h>
69922 #include <linux/interrupt.h>
69923@@ -139,7 +140,7 @@ out:
69924 * Return <0 error code on error; 1 on successful completion.
69925 * The files->file_lock should be held on entry, and will be held on exit.
69926 */
69927-static int expand_fdtable(struct files_struct *files, int nr)
69928+static int expand_fdtable(struct files_struct *files, unsigned int nr)
69929 __releases(files->file_lock)
69930 __acquires(files->file_lock)
69931 {
69932@@ -184,7 +185,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
69933 * expanded and execution may have blocked.
69934 * The files->file_lock should be held on entry, and will be held on exit.
69935 */
69936-static int expand_files(struct files_struct *files, int nr)
69937+static int expand_files(struct files_struct *files, unsigned int nr)
69938 {
69939 struct fdtable *fdt;
69940
69941@@ -800,6 +801,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
69942 if (!file)
69943 return __close_fd(files, fd);
69944
69945+ gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
69946 if (fd >= rlimit(RLIMIT_NOFILE))
69947 return -EBADF;
69948
69949@@ -826,6 +828,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
69950 if (unlikely(oldfd == newfd))
69951 return -EINVAL;
69952
69953+ gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
69954 if (newfd >= rlimit(RLIMIT_NOFILE))
69955 return -EBADF;
69956
69957@@ -881,6 +884,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
69958 int f_dupfd(unsigned int from, struct file *file, unsigned flags)
69959 {
69960 int err;
69961+ gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
69962 if (from >= rlimit(RLIMIT_NOFILE))
69963 return -EINVAL;
69964 err = alloc_fd(from, flags);
69965diff --git a/fs/filesystems.c b/fs/filesystems.c
69966index 5797d45..7d7d79a 100644
69967--- a/fs/filesystems.c
69968+++ b/fs/filesystems.c
69969@@ -275,7 +275,11 @@ struct file_system_type *get_fs_type(const char *name)
69970 int len = dot ? dot - name : strlen(name);
69971
69972 fs = __get_fs_type(name, len);
69973+#ifdef CONFIG_GRKERNSEC_MODHARDEN
69974+ if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
69975+#else
69976 if (!fs && (request_module("fs-%.*s", len, name) == 0))
69977+#endif
69978 fs = __get_fs_type(name, len);
69979
69980 if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
69981diff --git a/fs/fs_struct.c b/fs/fs_struct.c
69982index 7dca743..1ff87ae 100644
69983--- a/fs/fs_struct.c
69984+++ b/fs/fs_struct.c
69985@@ -4,6 +4,7 @@
69986 #include <linux/path.h>
69987 #include <linux/slab.h>
69988 #include <linux/fs_struct.h>
69989+#include <linux/grsecurity.h>
69990 #include "internal.h"
69991
69992 /*
69993@@ -15,14 +16,18 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
69994 struct path old_root;
69995
69996 path_get(path);
69997+ gr_inc_chroot_refcnts(path->dentry, path->mnt);
69998 spin_lock(&fs->lock);
69999 write_seqcount_begin(&fs->seq);
70000 old_root = fs->root;
70001 fs->root = *path;
70002+ gr_set_chroot_entries(current, path);
70003 write_seqcount_end(&fs->seq);
70004 spin_unlock(&fs->lock);
70005- if (old_root.dentry)
70006+ if (old_root.dentry) {
70007+ gr_dec_chroot_refcnts(old_root.dentry, old_root.mnt);
70008 path_put(&old_root);
70009+ }
70010 }
70011
70012 /*
70013@@ -67,6 +72,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
70014 int hits = 0;
70015 spin_lock(&fs->lock);
70016 write_seqcount_begin(&fs->seq);
70017+ /* this root replacement is only done by pivot_root,
70018+ leave grsec's chroot tagging alone for this task
70019+ so that a pivoted root isn't treated as a chroot
70020+ */
70021 hits += replace_path(&fs->root, old_root, new_root);
70022 hits += replace_path(&fs->pwd, old_root, new_root);
70023 write_seqcount_end(&fs->seq);
70024@@ -85,6 +94,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
70025
70026 void free_fs_struct(struct fs_struct *fs)
70027 {
70028+ gr_dec_chroot_refcnts(fs->root.dentry, fs->root.mnt);
70029 path_put(&fs->root);
70030 path_put(&fs->pwd);
70031 kmem_cache_free(fs_cachep, fs);
70032@@ -99,7 +109,8 @@ void exit_fs(struct task_struct *tsk)
70033 task_lock(tsk);
70034 spin_lock(&fs->lock);
70035 tsk->fs = NULL;
70036- kill = !--fs->users;
70037+ gr_clear_chroot_entries(tsk);
70038+ kill = !atomic_dec_return(&fs->users);
70039 spin_unlock(&fs->lock);
70040 task_unlock(tsk);
70041 if (kill)
70042@@ -112,7 +123,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
70043 struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
70044 /* We don't need to lock fs - think why ;-) */
70045 if (fs) {
70046- fs->users = 1;
70047+ atomic_set(&fs->users, 1);
70048 fs->in_exec = 0;
70049 spin_lock_init(&fs->lock);
70050 seqcount_init(&fs->seq);
70051@@ -121,9 +132,13 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
70052 spin_lock(&old->lock);
70053 fs->root = old->root;
70054 path_get(&fs->root);
70055+ /* instead of calling gr_set_chroot_entries here,
70056+ we call it from every caller of this function
70057+ */
70058 fs->pwd = old->pwd;
70059 path_get(&fs->pwd);
70060 spin_unlock(&old->lock);
70061+ gr_inc_chroot_refcnts(fs->root.dentry, fs->root.mnt);
70062 }
70063 return fs;
70064 }
70065@@ -139,8 +154,9 @@ int unshare_fs_struct(void)
70066
70067 task_lock(current);
70068 spin_lock(&fs->lock);
70069- kill = !--fs->users;
70070+ kill = !atomic_dec_return(&fs->users);
70071 current->fs = new_fs;
70072+ gr_set_chroot_entries(current, &new_fs->root);
70073 spin_unlock(&fs->lock);
70074 task_unlock(current);
70075
70076@@ -153,13 +169,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
70077
70078 int current_umask(void)
70079 {
70080- return current->fs->umask;
70081+ return current->fs->umask | gr_acl_umask();
70082 }
70083 EXPORT_SYMBOL(current_umask);
70084
70085 /* to be mentioned only in INIT_TASK */
70086 struct fs_struct init_fs = {
70087- .users = 1,
70088+ .users = ATOMIC_INIT(1),
70089 .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock),
70090 .seq = SEQCNT_ZERO(init_fs.seq),
70091 .umask = 0022,
70092diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
70093index 89acec7..a575262 100644
70094--- a/fs/fscache/cookie.c
70095+++ b/fs/fscache/cookie.c
70096@@ -19,7 +19,7 @@
70097
70098 struct kmem_cache *fscache_cookie_jar;
70099
70100-static atomic_t fscache_object_debug_id = ATOMIC_INIT(0);
70101+static atomic_unchecked_t fscache_object_debug_id = ATOMIC_INIT(0);
70102
70103 static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie);
70104 static int fscache_alloc_object(struct fscache_cache *cache,
70105@@ -69,11 +69,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
70106 parent ? (char *) parent->def->name : "<no-parent>",
70107 def->name, netfs_data, enable);
70108
70109- fscache_stat(&fscache_n_acquires);
70110+ fscache_stat_unchecked(&fscache_n_acquires);
70111
70112 /* if there's no parent cookie, then we don't create one here either */
70113 if (!parent) {
70114- fscache_stat(&fscache_n_acquires_null);
70115+ fscache_stat_unchecked(&fscache_n_acquires_null);
70116 _leave(" [no parent]");
70117 return NULL;
70118 }
70119@@ -88,7 +88,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70120 /* allocate and initialise a cookie */
70121 cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
70122 if (!cookie) {
70123- fscache_stat(&fscache_n_acquires_oom);
70124+ fscache_stat_unchecked(&fscache_n_acquires_oom);
70125 _leave(" [ENOMEM]");
70126 return NULL;
70127 }
70128@@ -115,13 +115,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
70129
70130 switch (cookie->def->type) {
70131 case FSCACHE_COOKIE_TYPE_INDEX:
70132- fscache_stat(&fscache_n_cookie_index);
70133+ fscache_stat_unchecked(&fscache_n_cookie_index);
70134 break;
70135 case FSCACHE_COOKIE_TYPE_DATAFILE:
70136- fscache_stat(&fscache_n_cookie_data);
70137+ fscache_stat_unchecked(&fscache_n_cookie_data);
70138 break;
70139 default:
70140- fscache_stat(&fscache_n_cookie_special);
70141+ fscache_stat_unchecked(&fscache_n_cookie_special);
70142 break;
70143 }
70144
70145@@ -135,7 +135,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70146 } else {
70147 atomic_dec(&parent->n_children);
70148 __fscache_cookie_put(cookie);
70149- fscache_stat(&fscache_n_acquires_nobufs);
70150+ fscache_stat_unchecked(&fscache_n_acquires_nobufs);
70151 _leave(" = NULL");
70152 return NULL;
70153 }
70154@@ -144,7 +144,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70155 }
70156 }
70157
70158- fscache_stat(&fscache_n_acquires_ok);
70159+ fscache_stat_unchecked(&fscache_n_acquires_ok);
70160 _leave(" = %p", cookie);
70161 return cookie;
70162 }
70163@@ -213,7 +213,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
70164 cache = fscache_select_cache_for_object(cookie->parent);
70165 if (!cache) {
70166 up_read(&fscache_addremove_sem);
70167- fscache_stat(&fscache_n_acquires_no_cache);
70168+ fscache_stat_unchecked(&fscache_n_acquires_no_cache);
70169 _leave(" = -ENOMEDIUM [no cache]");
70170 return -ENOMEDIUM;
70171 }
70172@@ -297,14 +297,14 @@ static int fscache_alloc_object(struct fscache_cache *cache,
70173 object = cache->ops->alloc_object(cache, cookie);
70174 fscache_stat_d(&fscache_n_cop_alloc_object);
70175 if (IS_ERR(object)) {
70176- fscache_stat(&fscache_n_object_no_alloc);
70177+ fscache_stat_unchecked(&fscache_n_object_no_alloc);
70178 ret = PTR_ERR(object);
70179 goto error;
70180 }
70181
70182- fscache_stat(&fscache_n_object_alloc);
70183+ fscache_stat_unchecked(&fscache_n_object_alloc);
70184
70185- object->debug_id = atomic_inc_return(&fscache_object_debug_id);
70186+ object->debug_id = atomic_inc_return_unchecked(&fscache_object_debug_id);
70187
70188 _debug("ALLOC OBJ%x: %s {%lx}",
70189 object->debug_id, cookie->def->name, object->events);
70190@@ -418,7 +418,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
70191
70192 _enter("{%s}", cookie->def->name);
70193
70194- fscache_stat(&fscache_n_invalidates);
70195+ fscache_stat_unchecked(&fscache_n_invalidates);
70196
70197 /* Only permit invalidation of data files. Invalidating an index will
70198 * require the caller to release all its attachments to the tree rooted
70199@@ -476,10 +476,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
70200 {
70201 struct fscache_object *object;
70202
70203- fscache_stat(&fscache_n_updates);
70204+ fscache_stat_unchecked(&fscache_n_updates);
70205
70206 if (!cookie) {
70207- fscache_stat(&fscache_n_updates_null);
70208+ fscache_stat_unchecked(&fscache_n_updates_null);
70209 _leave(" [no cookie]");
70210 return;
70211 }
70212@@ -580,12 +580,12 @@ EXPORT_SYMBOL(__fscache_disable_cookie);
70213 */
70214 void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
70215 {
70216- fscache_stat(&fscache_n_relinquishes);
70217+ fscache_stat_unchecked(&fscache_n_relinquishes);
70218 if (retire)
70219- fscache_stat(&fscache_n_relinquishes_retire);
70220+ fscache_stat_unchecked(&fscache_n_relinquishes_retire);
70221
70222 if (!cookie) {
70223- fscache_stat(&fscache_n_relinquishes_null);
70224+ fscache_stat_unchecked(&fscache_n_relinquishes_null);
70225 _leave(" [no cookie]");
70226 return;
70227 }
70228@@ -686,7 +686,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
70229 if (test_bit(FSCACHE_IOERROR, &object->cache->flags))
70230 goto inconsistent;
70231
70232- op->debug_id = atomic_inc_return(&fscache_op_debug_id);
70233+ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
70234
70235 __fscache_use_cookie(cookie);
70236 if (fscache_submit_op(object, op) < 0)
70237diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
70238index 7872a62..d91b19f 100644
70239--- a/fs/fscache/internal.h
70240+++ b/fs/fscache/internal.h
70241@@ -137,8 +137,8 @@ extern void fscache_operation_gc(struct work_struct *);
70242 extern int fscache_wait_for_deferred_lookup(struct fscache_cookie *);
70243 extern int fscache_wait_for_operation_activation(struct fscache_object *,
70244 struct fscache_operation *,
70245- atomic_t *,
70246- atomic_t *,
70247+ atomic_unchecked_t *,
70248+ atomic_unchecked_t *,
70249 void (*)(struct fscache_operation *));
70250 extern void fscache_invalidate_writes(struct fscache_cookie *);
70251
70252@@ -157,101 +157,101 @@ extern void fscache_proc_cleanup(void);
70253 * stats.c
70254 */
70255 #ifdef CONFIG_FSCACHE_STATS
70256-extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
70257-extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
70258+extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
70259+extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
70260
70261-extern atomic_t fscache_n_op_pend;
70262-extern atomic_t fscache_n_op_run;
70263-extern atomic_t fscache_n_op_enqueue;
70264-extern atomic_t fscache_n_op_deferred_release;
70265-extern atomic_t fscache_n_op_release;
70266-extern atomic_t fscache_n_op_gc;
70267-extern atomic_t fscache_n_op_cancelled;
70268-extern atomic_t fscache_n_op_rejected;
70269+extern atomic_unchecked_t fscache_n_op_pend;
70270+extern atomic_unchecked_t fscache_n_op_run;
70271+extern atomic_unchecked_t fscache_n_op_enqueue;
70272+extern atomic_unchecked_t fscache_n_op_deferred_release;
70273+extern atomic_unchecked_t fscache_n_op_release;
70274+extern atomic_unchecked_t fscache_n_op_gc;
70275+extern atomic_unchecked_t fscache_n_op_cancelled;
70276+extern atomic_unchecked_t fscache_n_op_rejected;
70277
70278-extern atomic_t fscache_n_attr_changed;
70279-extern atomic_t fscache_n_attr_changed_ok;
70280-extern atomic_t fscache_n_attr_changed_nobufs;
70281-extern atomic_t fscache_n_attr_changed_nomem;
70282-extern atomic_t fscache_n_attr_changed_calls;
70283+extern atomic_unchecked_t fscache_n_attr_changed;
70284+extern atomic_unchecked_t fscache_n_attr_changed_ok;
70285+extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
70286+extern atomic_unchecked_t fscache_n_attr_changed_nomem;
70287+extern atomic_unchecked_t fscache_n_attr_changed_calls;
70288
70289-extern atomic_t fscache_n_allocs;
70290-extern atomic_t fscache_n_allocs_ok;
70291-extern atomic_t fscache_n_allocs_wait;
70292-extern atomic_t fscache_n_allocs_nobufs;
70293-extern atomic_t fscache_n_allocs_intr;
70294-extern atomic_t fscache_n_allocs_object_dead;
70295-extern atomic_t fscache_n_alloc_ops;
70296-extern atomic_t fscache_n_alloc_op_waits;
70297+extern atomic_unchecked_t fscache_n_allocs;
70298+extern atomic_unchecked_t fscache_n_allocs_ok;
70299+extern atomic_unchecked_t fscache_n_allocs_wait;
70300+extern atomic_unchecked_t fscache_n_allocs_nobufs;
70301+extern atomic_unchecked_t fscache_n_allocs_intr;
70302+extern atomic_unchecked_t fscache_n_allocs_object_dead;
70303+extern atomic_unchecked_t fscache_n_alloc_ops;
70304+extern atomic_unchecked_t fscache_n_alloc_op_waits;
70305
70306-extern atomic_t fscache_n_retrievals;
70307-extern atomic_t fscache_n_retrievals_ok;
70308-extern atomic_t fscache_n_retrievals_wait;
70309-extern atomic_t fscache_n_retrievals_nodata;
70310-extern atomic_t fscache_n_retrievals_nobufs;
70311-extern atomic_t fscache_n_retrievals_intr;
70312-extern atomic_t fscache_n_retrievals_nomem;
70313-extern atomic_t fscache_n_retrievals_object_dead;
70314-extern atomic_t fscache_n_retrieval_ops;
70315-extern atomic_t fscache_n_retrieval_op_waits;
70316+extern atomic_unchecked_t fscache_n_retrievals;
70317+extern atomic_unchecked_t fscache_n_retrievals_ok;
70318+extern atomic_unchecked_t fscache_n_retrievals_wait;
70319+extern atomic_unchecked_t fscache_n_retrievals_nodata;
70320+extern atomic_unchecked_t fscache_n_retrievals_nobufs;
70321+extern atomic_unchecked_t fscache_n_retrievals_intr;
70322+extern atomic_unchecked_t fscache_n_retrievals_nomem;
70323+extern atomic_unchecked_t fscache_n_retrievals_object_dead;
70324+extern atomic_unchecked_t fscache_n_retrieval_ops;
70325+extern atomic_unchecked_t fscache_n_retrieval_op_waits;
70326
70327-extern atomic_t fscache_n_stores;
70328-extern atomic_t fscache_n_stores_ok;
70329-extern atomic_t fscache_n_stores_again;
70330-extern atomic_t fscache_n_stores_nobufs;
70331-extern atomic_t fscache_n_stores_oom;
70332-extern atomic_t fscache_n_store_ops;
70333-extern atomic_t fscache_n_store_calls;
70334-extern atomic_t fscache_n_store_pages;
70335-extern atomic_t fscache_n_store_radix_deletes;
70336-extern atomic_t fscache_n_store_pages_over_limit;
70337+extern atomic_unchecked_t fscache_n_stores;
70338+extern atomic_unchecked_t fscache_n_stores_ok;
70339+extern atomic_unchecked_t fscache_n_stores_again;
70340+extern atomic_unchecked_t fscache_n_stores_nobufs;
70341+extern atomic_unchecked_t fscache_n_stores_oom;
70342+extern atomic_unchecked_t fscache_n_store_ops;
70343+extern atomic_unchecked_t fscache_n_store_calls;
70344+extern atomic_unchecked_t fscache_n_store_pages;
70345+extern atomic_unchecked_t fscache_n_store_radix_deletes;
70346+extern atomic_unchecked_t fscache_n_store_pages_over_limit;
70347
70348-extern atomic_t fscache_n_store_vmscan_not_storing;
70349-extern atomic_t fscache_n_store_vmscan_gone;
70350-extern atomic_t fscache_n_store_vmscan_busy;
70351-extern atomic_t fscache_n_store_vmscan_cancelled;
70352-extern atomic_t fscache_n_store_vmscan_wait;
70353+extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
70354+extern atomic_unchecked_t fscache_n_store_vmscan_gone;
70355+extern atomic_unchecked_t fscache_n_store_vmscan_busy;
70356+extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
70357+extern atomic_unchecked_t fscache_n_store_vmscan_wait;
70358
70359-extern atomic_t fscache_n_marks;
70360-extern atomic_t fscache_n_uncaches;
70361+extern atomic_unchecked_t fscache_n_marks;
70362+extern atomic_unchecked_t fscache_n_uncaches;
70363
70364-extern atomic_t fscache_n_acquires;
70365-extern atomic_t fscache_n_acquires_null;
70366-extern atomic_t fscache_n_acquires_no_cache;
70367-extern atomic_t fscache_n_acquires_ok;
70368-extern atomic_t fscache_n_acquires_nobufs;
70369-extern atomic_t fscache_n_acquires_oom;
70370+extern atomic_unchecked_t fscache_n_acquires;
70371+extern atomic_unchecked_t fscache_n_acquires_null;
70372+extern atomic_unchecked_t fscache_n_acquires_no_cache;
70373+extern atomic_unchecked_t fscache_n_acquires_ok;
70374+extern atomic_unchecked_t fscache_n_acquires_nobufs;
70375+extern atomic_unchecked_t fscache_n_acquires_oom;
70376
70377-extern atomic_t fscache_n_invalidates;
70378-extern atomic_t fscache_n_invalidates_run;
70379+extern atomic_unchecked_t fscache_n_invalidates;
70380+extern atomic_unchecked_t fscache_n_invalidates_run;
70381
70382-extern atomic_t fscache_n_updates;
70383-extern atomic_t fscache_n_updates_null;
70384-extern atomic_t fscache_n_updates_run;
70385+extern atomic_unchecked_t fscache_n_updates;
70386+extern atomic_unchecked_t fscache_n_updates_null;
70387+extern atomic_unchecked_t fscache_n_updates_run;
70388
70389-extern atomic_t fscache_n_relinquishes;
70390-extern atomic_t fscache_n_relinquishes_null;
70391-extern atomic_t fscache_n_relinquishes_waitcrt;
70392-extern atomic_t fscache_n_relinquishes_retire;
70393+extern atomic_unchecked_t fscache_n_relinquishes;
70394+extern atomic_unchecked_t fscache_n_relinquishes_null;
70395+extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
70396+extern atomic_unchecked_t fscache_n_relinquishes_retire;
70397
70398-extern atomic_t fscache_n_cookie_index;
70399-extern atomic_t fscache_n_cookie_data;
70400-extern atomic_t fscache_n_cookie_special;
70401+extern atomic_unchecked_t fscache_n_cookie_index;
70402+extern atomic_unchecked_t fscache_n_cookie_data;
70403+extern atomic_unchecked_t fscache_n_cookie_special;
70404
70405-extern atomic_t fscache_n_object_alloc;
70406-extern atomic_t fscache_n_object_no_alloc;
70407-extern atomic_t fscache_n_object_lookups;
70408-extern atomic_t fscache_n_object_lookups_negative;
70409-extern atomic_t fscache_n_object_lookups_positive;
70410-extern atomic_t fscache_n_object_lookups_timed_out;
70411-extern atomic_t fscache_n_object_created;
70412-extern atomic_t fscache_n_object_avail;
70413-extern atomic_t fscache_n_object_dead;
70414+extern atomic_unchecked_t fscache_n_object_alloc;
70415+extern atomic_unchecked_t fscache_n_object_no_alloc;
70416+extern atomic_unchecked_t fscache_n_object_lookups;
70417+extern atomic_unchecked_t fscache_n_object_lookups_negative;
70418+extern atomic_unchecked_t fscache_n_object_lookups_positive;
70419+extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
70420+extern atomic_unchecked_t fscache_n_object_created;
70421+extern atomic_unchecked_t fscache_n_object_avail;
70422+extern atomic_unchecked_t fscache_n_object_dead;
70423
70424-extern atomic_t fscache_n_checkaux_none;
70425-extern atomic_t fscache_n_checkaux_okay;
70426-extern atomic_t fscache_n_checkaux_update;
70427-extern atomic_t fscache_n_checkaux_obsolete;
70428+extern atomic_unchecked_t fscache_n_checkaux_none;
70429+extern atomic_unchecked_t fscache_n_checkaux_okay;
70430+extern atomic_unchecked_t fscache_n_checkaux_update;
70431+extern atomic_unchecked_t fscache_n_checkaux_obsolete;
70432
70433 extern atomic_t fscache_n_cop_alloc_object;
70434 extern atomic_t fscache_n_cop_lookup_object;
70435@@ -276,6 +276,11 @@ static inline void fscache_stat(atomic_t *stat)
70436 atomic_inc(stat);
70437 }
70438
70439+static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
70440+{
70441+ atomic_inc_unchecked(stat);
70442+}
70443+
70444 static inline void fscache_stat_d(atomic_t *stat)
70445 {
70446 atomic_dec(stat);
70447@@ -288,6 +293,7 @@ extern const struct file_operations fscache_stats_fops;
70448
70449 #define __fscache_stat(stat) (NULL)
70450 #define fscache_stat(stat) do {} while (0)
70451+#define fscache_stat_unchecked(stat) do {} while (0)
70452 #define fscache_stat_d(stat) do {} while (0)
70453 #endif
70454
70455diff --git a/fs/fscache/object.c b/fs/fscache/object.c
70456index da032da..0076ce7 100644
70457--- a/fs/fscache/object.c
70458+++ b/fs/fscache/object.c
70459@@ -454,7 +454,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
70460 _debug("LOOKUP \"%s\" in \"%s\"",
70461 cookie->def->name, object->cache->tag->name);
70462
70463- fscache_stat(&fscache_n_object_lookups);
70464+ fscache_stat_unchecked(&fscache_n_object_lookups);
70465 fscache_stat(&fscache_n_cop_lookup_object);
70466 ret = object->cache->ops->lookup_object(object);
70467 fscache_stat_d(&fscache_n_cop_lookup_object);
70468@@ -464,7 +464,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
70469 if (ret == -ETIMEDOUT) {
70470 /* probably stuck behind another object, so move this one to
70471 * the back of the queue */
70472- fscache_stat(&fscache_n_object_lookups_timed_out);
70473+ fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
70474 _leave(" [timeout]");
70475 return NO_TRANSIT;
70476 }
70477@@ -492,7 +492,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
70478 _enter("{OBJ%x,%s}", object->debug_id, object->state->name);
70479
70480 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
70481- fscache_stat(&fscache_n_object_lookups_negative);
70482+ fscache_stat_unchecked(&fscache_n_object_lookups_negative);
70483
70484 /* Allow write requests to begin stacking up and read requests to begin
70485 * returning ENODATA.
70486@@ -527,7 +527,7 @@ void fscache_obtained_object(struct fscache_object *object)
70487 /* if we were still looking up, then we must have a positive lookup
70488 * result, in which case there may be data available */
70489 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
70490- fscache_stat(&fscache_n_object_lookups_positive);
70491+ fscache_stat_unchecked(&fscache_n_object_lookups_positive);
70492
70493 /* We do (presumably) have data */
70494 clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
70495@@ -539,7 +539,7 @@ void fscache_obtained_object(struct fscache_object *object)
70496 clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
70497 wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
70498 } else {
70499- fscache_stat(&fscache_n_object_created);
70500+ fscache_stat_unchecked(&fscache_n_object_created);
70501 }
70502
70503 set_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
70504@@ -575,7 +575,7 @@ static const struct fscache_state *fscache_object_available(struct fscache_objec
70505 fscache_stat_d(&fscache_n_cop_lookup_complete);
70506
70507 fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
70508- fscache_stat(&fscache_n_object_avail);
70509+ fscache_stat_unchecked(&fscache_n_object_avail);
70510
70511 _leave("");
70512 return transit_to(JUMPSTART_DEPS);
70513@@ -722,7 +722,7 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
70514
70515 /* this just shifts the object release to the work processor */
70516 fscache_put_object(object);
70517- fscache_stat(&fscache_n_object_dead);
70518+ fscache_stat_unchecked(&fscache_n_object_dead);
70519
70520 _leave("");
70521 return transit_to(OBJECT_DEAD);
70522@@ -887,7 +887,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
70523 enum fscache_checkaux result;
70524
70525 if (!object->cookie->def->check_aux) {
70526- fscache_stat(&fscache_n_checkaux_none);
70527+ fscache_stat_unchecked(&fscache_n_checkaux_none);
70528 return FSCACHE_CHECKAUX_OKAY;
70529 }
70530
70531@@ -896,17 +896,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
70532 switch (result) {
70533 /* entry okay as is */
70534 case FSCACHE_CHECKAUX_OKAY:
70535- fscache_stat(&fscache_n_checkaux_okay);
70536+ fscache_stat_unchecked(&fscache_n_checkaux_okay);
70537 break;
70538
70539 /* entry requires update */
70540 case FSCACHE_CHECKAUX_NEEDS_UPDATE:
70541- fscache_stat(&fscache_n_checkaux_update);
70542+ fscache_stat_unchecked(&fscache_n_checkaux_update);
70543 break;
70544
70545 /* entry requires deletion */
70546 case FSCACHE_CHECKAUX_OBSOLETE:
70547- fscache_stat(&fscache_n_checkaux_obsolete);
70548+ fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
70549 break;
70550
70551 default:
70552@@ -993,7 +993,7 @@ static const struct fscache_state *fscache_invalidate_object(struct fscache_obje
70553 {
70554 const struct fscache_state *s;
70555
70556- fscache_stat(&fscache_n_invalidates_run);
70557+ fscache_stat_unchecked(&fscache_n_invalidates_run);
70558 fscache_stat(&fscache_n_cop_invalidate_object);
70559 s = _fscache_invalidate_object(object, event);
70560 fscache_stat_d(&fscache_n_cop_invalidate_object);
70561@@ -1008,7 +1008,7 @@ static const struct fscache_state *fscache_update_object(struct fscache_object *
70562 {
70563 _enter("{OBJ%x},%d", object->debug_id, event);
70564
70565- fscache_stat(&fscache_n_updates_run);
70566+ fscache_stat_unchecked(&fscache_n_updates_run);
70567 fscache_stat(&fscache_n_cop_update_object);
70568 object->cache->ops->update_object(object);
70569 fscache_stat_d(&fscache_n_cop_update_object);
70570diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
70571index e7b87a0..a85d47a 100644
70572--- a/fs/fscache/operation.c
70573+++ b/fs/fscache/operation.c
70574@@ -17,7 +17,7 @@
70575 #include <linux/slab.h>
70576 #include "internal.h"
70577
70578-atomic_t fscache_op_debug_id;
70579+atomic_unchecked_t fscache_op_debug_id;
70580 EXPORT_SYMBOL(fscache_op_debug_id);
70581
70582 /**
70583@@ -39,7 +39,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
70584 ASSERTCMP(atomic_read(&op->usage), >, 0);
70585 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
70586
70587- fscache_stat(&fscache_n_op_enqueue);
70588+ fscache_stat_unchecked(&fscache_n_op_enqueue);
70589 switch (op->flags & FSCACHE_OP_TYPE) {
70590 case FSCACHE_OP_ASYNC:
70591 _debug("queue async");
70592@@ -72,7 +72,7 @@ static void fscache_run_op(struct fscache_object *object,
70593 wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
70594 if (op->processor)
70595 fscache_enqueue_operation(op);
70596- fscache_stat(&fscache_n_op_run);
70597+ fscache_stat_unchecked(&fscache_n_op_run);
70598 }
70599
70600 /*
70601@@ -104,11 +104,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
70602 if (object->n_in_progress > 0) {
70603 atomic_inc(&op->usage);
70604 list_add_tail(&op->pend_link, &object->pending_ops);
70605- fscache_stat(&fscache_n_op_pend);
70606+ fscache_stat_unchecked(&fscache_n_op_pend);
70607 } else if (!list_empty(&object->pending_ops)) {
70608 atomic_inc(&op->usage);
70609 list_add_tail(&op->pend_link, &object->pending_ops);
70610- fscache_stat(&fscache_n_op_pend);
70611+ fscache_stat_unchecked(&fscache_n_op_pend);
70612 fscache_start_operations(object);
70613 } else {
70614 ASSERTCMP(object->n_in_progress, ==, 0);
70615@@ -124,7 +124,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
70616 object->n_exclusive++; /* reads and writes must wait */
70617 atomic_inc(&op->usage);
70618 list_add_tail(&op->pend_link, &object->pending_ops);
70619- fscache_stat(&fscache_n_op_pend);
70620+ fscache_stat_unchecked(&fscache_n_op_pend);
70621 ret = 0;
70622 } else {
70623 /* If we're in any other state, there must have been an I/O
70624@@ -211,11 +211,11 @@ int fscache_submit_op(struct fscache_object *object,
70625 if (object->n_exclusive > 0) {
70626 atomic_inc(&op->usage);
70627 list_add_tail(&op->pend_link, &object->pending_ops);
70628- fscache_stat(&fscache_n_op_pend);
70629+ fscache_stat_unchecked(&fscache_n_op_pend);
70630 } else if (!list_empty(&object->pending_ops)) {
70631 atomic_inc(&op->usage);
70632 list_add_tail(&op->pend_link, &object->pending_ops);
70633- fscache_stat(&fscache_n_op_pend);
70634+ fscache_stat_unchecked(&fscache_n_op_pend);
70635 fscache_start_operations(object);
70636 } else {
70637 ASSERTCMP(object->n_exclusive, ==, 0);
70638@@ -227,10 +227,10 @@ int fscache_submit_op(struct fscache_object *object,
70639 object->n_ops++;
70640 atomic_inc(&op->usage);
70641 list_add_tail(&op->pend_link, &object->pending_ops);
70642- fscache_stat(&fscache_n_op_pend);
70643+ fscache_stat_unchecked(&fscache_n_op_pend);
70644 ret = 0;
70645 } else if (fscache_object_is_dying(object)) {
70646- fscache_stat(&fscache_n_op_rejected);
70647+ fscache_stat_unchecked(&fscache_n_op_rejected);
70648 op->state = FSCACHE_OP_ST_CANCELLED;
70649 ret = -ENOBUFS;
70650 } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
70651@@ -309,7 +309,7 @@ int fscache_cancel_op(struct fscache_operation *op,
70652 ret = -EBUSY;
70653 if (op->state == FSCACHE_OP_ST_PENDING) {
70654 ASSERT(!list_empty(&op->pend_link));
70655- fscache_stat(&fscache_n_op_cancelled);
70656+ fscache_stat_unchecked(&fscache_n_op_cancelled);
70657 list_del_init(&op->pend_link);
70658 if (do_cancel)
70659 do_cancel(op);
70660@@ -341,7 +341,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
70661 while (!list_empty(&object->pending_ops)) {
70662 op = list_entry(object->pending_ops.next,
70663 struct fscache_operation, pend_link);
70664- fscache_stat(&fscache_n_op_cancelled);
70665+ fscache_stat_unchecked(&fscache_n_op_cancelled);
70666 list_del_init(&op->pend_link);
70667
70668 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
70669@@ -413,7 +413,7 @@ void fscache_put_operation(struct fscache_operation *op)
70670 op->state, ==, FSCACHE_OP_ST_CANCELLED);
70671 op->state = FSCACHE_OP_ST_DEAD;
70672
70673- fscache_stat(&fscache_n_op_release);
70674+ fscache_stat_unchecked(&fscache_n_op_release);
70675
70676 if (op->release) {
70677 op->release(op);
70678@@ -432,7 +432,7 @@ void fscache_put_operation(struct fscache_operation *op)
70679 * lock, and defer it otherwise */
70680 if (!spin_trylock(&object->lock)) {
70681 _debug("defer put");
70682- fscache_stat(&fscache_n_op_deferred_release);
70683+ fscache_stat_unchecked(&fscache_n_op_deferred_release);
70684
70685 cache = object->cache;
70686 spin_lock(&cache->op_gc_list_lock);
70687@@ -485,7 +485,7 @@ void fscache_operation_gc(struct work_struct *work)
70688
70689 _debug("GC DEFERRED REL OBJ%x OP%x",
70690 object->debug_id, op->debug_id);
70691- fscache_stat(&fscache_n_op_gc);
70692+ fscache_stat_unchecked(&fscache_n_op_gc);
70693
70694 ASSERTCMP(atomic_read(&op->usage), ==, 0);
70695 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
70696diff --git a/fs/fscache/page.c b/fs/fscache/page.c
70697index de33b3f..8be4d29 100644
70698--- a/fs/fscache/page.c
70699+++ b/fs/fscache/page.c
70700@@ -74,7 +74,7 @@ try_again:
70701 val = radix_tree_lookup(&cookie->stores, page->index);
70702 if (!val) {
70703 rcu_read_unlock();
70704- fscache_stat(&fscache_n_store_vmscan_not_storing);
70705+ fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
70706 __fscache_uncache_page(cookie, page);
70707 return true;
70708 }
70709@@ -104,11 +104,11 @@ try_again:
70710 spin_unlock(&cookie->stores_lock);
70711
70712 if (xpage) {
70713- fscache_stat(&fscache_n_store_vmscan_cancelled);
70714- fscache_stat(&fscache_n_store_radix_deletes);
70715+ fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
70716+ fscache_stat_unchecked(&fscache_n_store_radix_deletes);
70717 ASSERTCMP(xpage, ==, page);
70718 } else {
70719- fscache_stat(&fscache_n_store_vmscan_gone);
70720+ fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
70721 }
70722
70723 wake_up_bit(&cookie->flags, 0);
70724@@ -123,11 +123,11 @@ page_busy:
70725 * sleeping on memory allocation, so we may need to impose a timeout
70726 * too. */
70727 if (!(gfp & __GFP_WAIT) || !(gfp & __GFP_FS)) {
70728- fscache_stat(&fscache_n_store_vmscan_busy);
70729+ fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
70730 return false;
70731 }
70732
70733- fscache_stat(&fscache_n_store_vmscan_wait);
70734+ fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
70735 if (!release_page_wait_timeout(cookie, page))
70736 _debug("fscache writeout timeout page: %p{%lx}",
70737 page, page->index);
70738@@ -156,7 +156,7 @@ static void fscache_end_page_write(struct fscache_object *object,
70739 FSCACHE_COOKIE_STORING_TAG);
70740 if (!radix_tree_tag_get(&cookie->stores, page->index,
70741 FSCACHE_COOKIE_PENDING_TAG)) {
70742- fscache_stat(&fscache_n_store_radix_deletes);
70743+ fscache_stat_unchecked(&fscache_n_store_radix_deletes);
70744 xpage = radix_tree_delete(&cookie->stores, page->index);
70745 }
70746 spin_unlock(&cookie->stores_lock);
70747@@ -177,7 +177,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
70748
70749 _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
70750
70751- fscache_stat(&fscache_n_attr_changed_calls);
70752+ fscache_stat_unchecked(&fscache_n_attr_changed_calls);
70753
70754 if (fscache_object_is_active(object)) {
70755 fscache_stat(&fscache_n_cop_attr_changed);
70756@@ -204,11 +204,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
70757
70758 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
70759
70760- fscache_stat(&fscache_n_attr_changed);
70761+ fscache_stat_unchecked(&fscache_n_attr_changed);
70762
70763 op = kzalloc(sizeof(*op), GFP_KERNEL);
70764 if (!op) {
70765- fscache_stat(&fscache_n_attr_changed_nomem);
70766+ fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
70767 _leave(" = -ENOMEM");
70768 return -ENOMEM;
70769 }
70770@@ -230,7 +230,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
70771 if (fscache_submit_exclusive_op(object, op) < 0)
70772 goto nobufs_dec;
70773 spin_unlock(&cookie->lock);
70774- fscache_stat(&fscache_n_attr_changed_ok);
70775+ fscache_stat_unchecked(&fscache_n_attr_changed_ok);
70776 fscache_put_operation(op);
70777 _leave(" = 0");
70778 return 0;
70779@@ -242,7 +242,7 @@ nobufs:
70780 kfree(op);
70781 if (wake_cookie)
70782 __fscache_wake_unused_cookie(cookie);
70783- fscache_stat(&fscache_n_attr_changed_nobufs);
70784+ fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
70785 _leave(" = %d", -ENOBUFS);
70786 return -ENOBUFS;
70787 }
70788@@ -281,7 +281,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
70789 /* allocate a retrieval operation and attempt to submit it */
70790 op = kzalloc(sizeof(*op), GFP_NOIO);
70791 if (!op) {
70792- fscache_stat(&fscache_n_retrievals_nomem);
70793+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70794 return NULL;
70795 }
70796
70797@@ -311,12 +311,12 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
70798 return 0;
70799 }
70800
70801- fscache_stat(&fscache_n_retrievals_wait);
70802+ fscache_stat_unchecked(&fscache_n_retrievals_wait);
70803
70804 jif = jiffies;
70805 if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
70806 TASK_INTERRUPTIBLE) != 0) {
70807- fscache_stat(&fscache_n_retrievals_intr);
70808+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70809 _leave(" = -ERESTARTSYS");
70810 return -ERESTARTSYS;
70811 }
70812@@ -345,8 +345,8 @@ static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
70813 */
70814 int fscache_wait_for_operation_activation(struct fscache_object *object,
70815 struct fscache_operation *op,
70816- atomic_t *stat_op_waits,
70817- atomic_t *stat_object_dead,
70818+ atomic_unchecked_t *stat_op_waits,
70819+ atomic_unchecked_t *stat_object_dead,
70820 void (*do_cancel)(struct fscache_operation *))
70821 {
70822 int ret;
70823@@ -356,7 +356,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
70824
70825 _debug(">>> WT");
70826 if (stat_op_waits)
70827- fscache_stat(stat_op_waits);
70828+ fscache_stat_unchecked(stat_op_waits);
70829 if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
70830 TASK_INTERRUPTIBLE) != 0) {
70831 ret = fscache_cancel_op(op, do_cancel);
70832@@ -373,7 +373,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
70833 check_if_dead:
70834 if (op->state == FSCACHE_OP_ST_CANCELLED) {
70835 if (stat_object_dead)
70836- fscache_stat(stat_object_dead);
70837+ fscache_stat_unchecked(stat_object_dead);
70838 _leave(" = -ENOBUFS [cancelled]");
70839 return -ENOBUFS;
70840 }
70841@@ -381,7 +381,7 @@ check_if_dead:
70842 pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->state);
70843 fscache_cancel_op(op, do_cancel);
70844 if (stat_object_dead)
70845- fscache_stat(stat_object_dead);
70846+ fscache_stat_unchecked(stat_object_dead);
70847 return -ENOBUFS;
70848 }
70849 return 0;
70850@@ -409,7 +409,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70851
70852 _enter("%p,%p,,,", cookie, page);
70853
70854- fscache_stat(&fscache_n_retrievals);
70855+ fscache_stat_unchecked(&fscache_n_retrievals);
70856
70857 if (hlist_empty(&cookie->backing_objects))
70858 goto nobufs;
70859@@ -451,7 +451,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70860 goto nobufs_unlock_dec;
70861 spin_unlock(&cookie->lock);
70862
70863- fscache_stat(&fscache_n_retrieval_ops);
70864+ fscache_stat_unchecked(&fscache_n_retrieval_ops);
70865
70866 /* pin the netfs read context in case we need to do the actual netfs
70867 * read because we've encountered a cache read failure */
70868@@ -482,15 +482,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70869
70870 error:
70871 if (ret == -ENOMEM)
70872- fscache_stat(&fscache_n_retrievals_nomem);
70873+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70874 else if (ret == -ERESTARTSYS)
70875- fscache_stat(&fscache_n_retrievals_intr);
70876+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70877 else if (ret == -ENODATA)
70878- fscache_stat(&fscache_n_retrievals_nodata);
70879+ fscache_stat_unchecked(&fscache_n_retrievals_nodata);
70880 else if (ret < 0)
70881- fscache_stat(&fscache_n_retrievals_nobufs);
70882+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70883 else
70884- fscache_stat(&fscache_n_retrievals_ok);
70885+ fscache_stat_unchecked(&fscache_n_retrievals_ok);
70886
70887 fscache_put_retrieval(op);
70888 _leave(" = %d", ret);
70889@@ -505,7 +505,7 @@ nobufs_unlock:
70890 __fscache_wake_unused_cookie(cookie);
70891 kfree(op);
70892 nobufs:
70893- fscache_stat(&fscache_n_retrievals_nobufs);
70894+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70895 _leave(" = -ENOBUFS");
70896 return -ENOBUFS;
70897 }
70898@@ -544,7 +544,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70899
70900 _enter("%p,,%d,,,", cookie, *nr_pages);
70901
70902- fscache_stat(&fscache_n_retrievals);
70903+ fscache_stat_unchecked(&fscache_n_retrievals);
70904
70905 if (hlist_empty(&cookie->backing_objects))
70906 goto nobufs;
70907@@ -582,7 +582,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70908 goto nobufs_unlock_dec;
70909 spin_unlock(&cookie->lock);
70910
70911- fscache_stat(&fscache_n_retrieval_ops);
70912+ fscache_stat_unchecked(&fscache_n_retrieval_ops);
70913
70914 /* pin the netfs read context in case we need to do the actual netfs
70915 * read because we've encountered a cache read failure */
70916@@ -613,15 +613,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70917
70918 error:
70919 if (ret == -ENOMEM)
70920- fscache_stat(&fscache_n_retrievals_nomem);
70921+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70922 else if (ret == -ERESTARTSYS)
70923- fscache_stat(&fscache_n_retrievals_intr);
70924+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70925 else if (ret == -ENODATA)
70926- fscache_stat(&fscache_n_retrievals_nodata);
70927+ fscache_stat_unchecked(&fscache_n_retrievals_nodata);
70928 else if (ret < 0)
70929- fscache_stat(&fscache_n_retrievals_nobufs);
70930+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70931 else
70932- fscache_stat(&fscache_n_retrievals_ok);
70933+ fscache_stat_unchecked(&fscache_n_retrievals_ok);
70934
70935 fscache_put_retrieval(op);
70936 _leave(" = %d", ret);
70937@@ -636,7 +636,7 @@ nobufs_unlock:
70938 if (wake_cookie)
70939 __fscache_wake_unused_cookie(cookie);
70940 nobufs:
70941- fscache_stat(&fscache_n_retrievals_nobufs);
70942+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70943 _leave(" = -ENOBUFS");
70944 return -ENOBUFS;
70945 }
70946@@ -661,7 +661,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
70947
70948 _enter("%p,%p,,,", cookie, page);
70949
70950- fscache_stat(&fscache_n_allocs);
70951+ fscache_stat_unchecked(&fscache_n_allocs);
70952
70953 if (hlist_empty(&cookie->backing_objects))
70954 goto nobufs;
70955@@ -695,7 +695,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
70956 goto nobufs_unlock_dec;
70957 spin_unlock(&cookie->lock);
70958
70959- fscache_stat(&fscache_n_alloc_ops);
70960+ fscache_stat_unchecked(&fscache_n_alloc_ops);
70961
70962 ret = fscache_wait_for_operation_activation(
70963 object, &op->op,
70964@@ -712,11 +712,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
70965
70966 error:
70967 if (ret == -ERESTARTSYS)
70968- fscache_stat(&fscache_n_allocs_intr);
70969+ fscache_stat_unchecked(&fscache_n_allocs_intr);
70970 else if (ret < 0)
70971- fscache_stat(&fscache_n_allocs_nobufs);
70972+ fscache_stat_unchecked(&fscache_n_allocs_nobufs);
70973 else
70974- fscache_stat(&fscache_n_allocs_ok);
70975+ fscache_stat_unchecked(&fscache_n_allocs_ok);
70976
70977 fscache_put_retrieval(op);
70978 _leave(" = %d", ret);
70979@@ -730,7 +730,7 @@ nobufs_unlock:
70980 if (wake_cookie)
70981 __fscache_wake_unused_cookie(cookie);
70982 nobufs:
70983- fscache_stat(&fscache_n_allocs_nobufs);
70984+ fscache_stat_unchecked(&fscache_n_allocs_nobufs);
70985 _leave(" = -ENOBUFS");
70986 return -ENOBUFS;
70987 }
70988@@ -806,7 +806,7 @@ static void fscache_write_op(struct fscache_operation *_op)
70989
70990 spin_lock(&cookie->stores_lock);
70991
70992- fscache_stat(&fscache_n_store_calls);
70993+ fscache_stat_unchecked(&fscache_n_store_calls);
70994
70995 /* find a page to store */
70996 page = NULL;
70997@@ -817,7 +817,7 @@ static void fscache_write_op(struct fscache_operation *_op)
70998 page = results[0];
70999 _debug("gang %d [%lx]", n, page->index);
71000 if (page->index > op->store_limit) {
71001- fscache_stat(&fscache_n_store_pages_over_limit);
71002+ fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
71003 goto superseded;
71004 }
71005
71006@@ -829,7 +829,7 @@ static void fscache_write_op(struct fscache_operation *_op)
71007 spin_unlock(&cookie->stores_lock);
71008 spin_unlock(&object->lock);
71009
71010- fscache_stat(&fscache_n_store_pages);
71011+ fscache_stat_unchecked(&fscache_n_store_pages);
71012 fscache_stat(&fscache_n_cop_write_page);
71013 ret = object->cache->ops->write_page(op, page);
71014 fscache_stat_d(&fscache_n_cop_write_page);
71015@@ -933,7 +933,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71016 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
71017 ASSERT(PageFsCache(page));
71018
71019- fscache_stat(&fscache_n_stores);
71020+ fscache_stat_unchecked(&fscache_n_stores);
71021
71022 if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
71023 _leave(" = -ENOBUFS [invalidating]");
71024@@ -992,7 +992,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71025 spin_unlock(&cookie->stores_lock);
71026 spin_unlock(&object->lock);
71027
71028- op->op.debug_id = atomic_inc_return(&fscache_op_debug_id);
71029+ op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
71030 op->store_limit = object->store_limit;
71031
71032 __fscache_use_cookie(cookie);
71033@@ -1001,8 +1001,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71034
71035 spin_unlock(&cookie->lock);
71036 radix_tree_preload_end();
71037- fscache_stat(&fscache_n_store_ops);
71038- fscache_stat(&fscache_n_stores_ok);
71039+ fscache_stat_unchecked(&fscache_n_store_ops);
71040+ fscache_stat_unchecked(&fscache_n_stores_ok);
71041
71042 /* the work queue now carries its own ref on the object */
71043 fscache_put_operation(&op->op);
71044@@ -1010,14 +1010,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71045 return 0;
71046
71047 already_queued:
71048- fscache_stat(&fscache_n_stores_again);
71049+ fscache_stat_unchecked(&fscache_n_stores_again);
71050 already_pending:
71051 spin_unlock(&cookie->stores_lock);
71052 spin_unlock(&object->lock);
71053 spin_unlock(&cookie->lock);
71054 radix_tree_preload_end();
71055 kfree(op);
71056- fscache_stat(&fscache_n_stores_ok);
71057+ fscache_stat_unchecked(&fscache_n_stores_ok);
71058 _leave(" = 0");
71059 return 0;
71060
71061@@ -1039,14 +1039,14 @@ nobufs:
71062 kfree(op);
71063 if (wake_cookie)
71064 __fscache_wake_unused_cookie(cookie);
71065- fscache_stat(&fscache_n_stores_nobufs);
71066+ fscache_stat_unchecked(&fscache_n_stores_nobufs);
71067 _leave(" = -ENOBUFS");
71068 return -ENOBUFS;
71069
71070 nomem_free:
71071 kfree(op);
71072 nomem:
71073- fscache_stat(&fscache_n_stores_oom);
71074+ fscache_stat_unchecked(&fscache_n_stores_oom);
71075 _leave(" = -ENOMEM");
71076 return -ENOMEM;
71077 }
71078@@ -1064,7 +1064,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
71079 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
71080 ASSERTCMP(page, !=, NULL);
71081
71082- fscache_stat(&fscache_n_uncaches);
71083+ fscache_stat_unchecked(&fscache_n_uncaches);
71084
71085 /* cache withdrawal may beat us to it */
71086 if (!PageFsCache(page))
71087@@ -1115,7 +1115,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
71088 struct fscache_cookie *cookie = op->op.object->cookie;
71089
71090 #ifdef CONFIG_FSCACHE_STATS
71091- atomic_inc(&fscache_n_marks);
71092+ atomic_inc_unchecked(&fscache_n_marks);
71093 #endif
71094
71095 _debug("- mark %p{%lx}", page, page->index);
71096diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
71097index 40d13c7..ddf52b9 100644
71098--- a/fs/fscache/stats.c
71099+++ b/fs/fscache/stats.c
71100@@ -18,99 +18,99 @@
71101 /*
71102 * operation counters
71103 */
71104-atomic_t fscache_n_op_pend;
71105-atomic_t fscache_n_op_run;
71106-atomic_t fscache_n_op_enqueue;
71107-atomic_t fscache_n_op_requeue;
71108-atomic_t fscache_n_op_deferred_release;
71109-atomic_t fscache_n_op_release;
71110-atomic_t fscache_n_op_gc;
71111-atomic_t fscache_n_op_cancelled;
71112-atomic_t fscache_n_op_rejected;
71113+atomic_unchecked_t fscache_n_op_pend;
71114+atomic_unchecked_t fscache_n_op_run;
71115+atomic_unchecked_t fscache_n_op_enqueue;
71116+atomic_unchecked_t fscache_n_op_requeue;
71117+atomic_unchecked_t fscache_n_op_deferred_release;
71118+atomic_unchecked_t fscache_n_op_release;
71119+atomic_unchecked_t fscache_n_op_gc;
71120+atomic_unchecked_t fscache_n_op_cancelled;
71121+atomic_unchecked_t fscache_n_op_rejected;
71122
71123-atomic_t fscache_n_attr_changed;
71124-atomic_t fscache_n_attr_changed_ok;
71125-atomic_t fscache_n_attr_changed_nobufs;
71126-atomic_t fscache_n_attr_changed_nomem;
71127-atomic_t fscache_n_attr_changed_calls;
71128+atomic_unchecked_t fscache_n_attr_changed;
71129+atomic_unchecked_t fscache_n_attr_changed_ok;
71130+atomic_unchecked_t fscache_n_attr_changed_nobufs;
71131+atomic_unchecked_t fscache_n_attr_changed_nomem;
71132+atomic_unchecked_t fscache_n_attr_changed_calls;
71133
71134-atomic_t fscache_n_allocs;
71135-atomic_t fscache_n_allocs_ok;
71136-atomic_t fscache_n_allocs_wait;
71137-atomic_t fscache_n_allocs_nobufs;
71138-atomic_t fscache_n_allocs_intr;
71139-atomic_t fscache_n_allocs_object_dead;
71140-atomic_t fscache_n_alloc_ops;
71141-atomic_t fscache_n_alloc_op_waits;
71142+atomic_unchecked_t fscache_n_allocs;
71143+atomic_unchecked_t fscache_n_allocs_ok;
71144+atomic_unchecked_t fscache_n_allocs_wait;
71145+atomic_unchecked_t fscache_n_allocs_nobufs;
71146+atomic_unchecked_t fscache_n_allocs_intr;
71147+atomic_unchecked_t fscache_n_allocs_object_dead;
71148+atomic_unchecked_t fscache_n_alloc_ops;
71149+atomic_unchecked_t fscache_n_alloc_op_waits;
71150
71151-atomic_t fscache_n_retrievals;
71152-atomic_t fscache_n_retrievals_ok;
71153-atomic_t fscache_n_retrievals_wait;
71154-atomic_t fscache_n_retrievals_nodata;
71155-atomic_t fscache_n_retrievals_nobufs;
71156-atomic_t fscache_n_retrievals_intr;
71157-atomic_t fscache_n_retrievals_nomem;
71158-atomic_t fscache_n_retrievals_object_dead;
71159-atomic_t fscache_n_retrieval_ops;
71160-atomic_t fscache_n_retrieval_op_waits;
71161+atomic_unchecked_t fscache_n_retrievals;
71162+atomic_unchecked_t fscache_n_retrievals_ok;
71163+atomic_unchecked_t fscache_n_retrievals_wait;
71164+atomic_unchecked_t fscache_n_retrievals_nodata;
71165+atomic_unchecked_t fscache_n_retrievals_nobufs;
71166+atomic_unchecked_t fscache_n_retrievals_intr;
71167+atomic_unchecked_t fscache_n_retrievals_nomem;
71168+atomic_unchecked_t fscache_n_retrievals_object_dead;
71169+atomic_unchecked_t fscache_n_retrieval_ops;
71170+atomic_unchecked_t fscache_n_retrieval_op_waits;
71171
71172-atomic_t fscache_n_stores;
71173-atomic_t fscache_n_stores_ok;
71174-atomic_t fscache_n_stores_again;
71175-atomic_t fscache_n_stores_nobufs;
71176-atomic_t fscache_n_stores_oom;
71177-atomic_t fscache_n_store_ops;
71178-atomic_t fscache_n_store_calls;
71179-atomic_t fscache_n_store_pages;
71180-atomic_t fscache_n_store_radix_deletes;
71181-atomic_t fscache_n_store_pages_over_limit;
71182+atomic_unchecked_t fscache_n_stores;
71183+atomic_unchecked_t fscache_n_stores_ok;
71184+atomic_unchecked_t fscache_n_stores_again;
71185+atomic_unchecked_t fscache_n_stores_nobufs;
71186+atomic_unchecked_t fscache_n_stores_oom;
71187+atomic_unchecked_t fscache_n_store_ops;
71188+atomic_unchecked_t fscache_n_store_calls;
71189+atomic_unchecked_t fscache_n_store_pages;
71190+atomic_unchecked_t fscache_n_store_radix_deletes;
71191+atomic_unchecked_t fscache_n_store_pages_over_limit;
71192
71193-atomic_t fscache_n_store_vmscan_not_storing;
71194-atomic_t fscache_n_store_vmscan_gone;
71195-atomic_t fscache_n_store_vmscan_busy;
71196-atomic_t fscache_n_store_vmscan_cancelled;
71197-atomic_t fscache_n_store_vmscan_wait;
71198+atomic_unchecked_t fscache_n_store_vmscan_not_storing;
71199+atomic_unchecked_t fscache_n_store_vmscan_gone;
71200+atomic_unchecked_t fscache_n_store_vmscan_busy;
71201+atomic_unchecked_t fscache_n_store_vmscan_cancelled;
71202+atomic_unchecked_t fscache_n_store_vmscan_wait;
71203
71204-atomic_t fscache_n_marks;
71205-atomic_t fscache_n_uncaches;
71206+atomic_unchecked_t fscache_n_marks;
71207+atomic_unchecked_t fscache_n_uncaches;
71208
71209-atomic_t fscache_n_acquires;
71210-atomic_t fscache_n_acquires_null;
71211-atomic_t fscache_n_acquires_no_cache;
71212-atomic_t fscache_n_acquires_ok;
71213-atomic_t fscache_n_acquires_nobufs;
71214-atomic_t fscache_n_acquires_oom;
71215+atomic_unchecked_t fscache_n_acquires;
71216+atomic_unchecked_t fscache_n_acquires_null;
71217+atomic_unchecked_t fscache_n_acquires_no_cache;
71218+atomic_unchecked_t fscache_n_acquires_ok;
71219+atomic_unchecked_t fscache_n_acquires_nobufs;
71220+atomic_unchecked_t fscache_n_acquires_oom;
71221
71222-atomic_t fscache_n_invalidates;
71223-atomic_t fscache_n_invalidates_run;
71224+atomic_unchecked_t fscache_n_invalidates;
71225+atomic_unchecked_t fscache_n_invalidates_run;
71226
71227-atomic_t fscache_n_updates;
71228-atomic_t fscache_n_updates_null;
71229-atomic_t fscache_n_updates_run;
71230+atomic_unchecked_t fscache_n_updates;
71231+atomic_unchecked_t fscache_n_updates_null;
71232+atomic_unchecked_t fscache_n_updates_run;
71233
71234-atomic_t fscache_n_relinquishes;
71235-atomic_t fscache_n_relinquishes_null;
71236-atomic_t fscache_n_relinquishes_waitcrt;
71237-atomic_t fscache_n_relinquishes_retire;
71238+atomic_unchecked_t fscache_n_relinquishes;
71239+atomic_unchecked_t fscache_n_relinquishes_null;
71240+atomic_unchecked_t fscache_n_relinquishes_waitcrt;
71241+atomic_unchecked_t fscache_n_relinquishes_retire;
71242
71243-atomic_t fscache_n_cookie_index;
71244-atomic_t fscache_n_cookie_data;
71245-atomic_t fscache_n_cookie_special;
71246+atomic_unchecked_t fscache_n_cookie_index;
71247+atomic_unchecked_t fscache_n_cookie_data;
71248+atomic_unchecked_t fscache_n_cookie_special;
71249
71250-atomic_t fscache_n_object_alloc;
71251-atomic_t fscache_n_object_no_alloc;
71252-atomic_t fscache_n_object_lookups;
71253-atomic_t fscache_n_object_lookups_negative;
71254-atomic_t fscache_n_object_lookups_positive;
71255-atomic_t fscache_n_object_lookups_timed_out;
71256-atomic_t fscache_n_object_created;
71257-atomic_t fscache_n_object_avail;
71258-atomic_t fscache_n_object_dead;
71259+atomic_unchecked_t fscache_n_object_alloc;
71260+atomic_unchecked_t fscache_n_object_no_alloc;
71261+atomic_unchecked_t fscache_n_object_lookups;
71262+atomic_unchecked_t fscache_n_object_lookups_negative;
71263+atomic_unchecked_t fscache_n_object_lookups_positive;
71264+atomic_unchecked_t fscache_n_object_lookups_timed_out;
71265+atomic_unchecked_t fscache_n_object_created;
71266+atomic_unchecked_t fscache_n_object_avail;
71267+atomic_unchecked_t fscache_n_object_dead;
71268
71269-atomic_t fscache_n_checkaux_none;
71270-atomic_t fscache_n_checkaux_okay;
71271-atomic_t fscache_n_checkaux_update;
71272-atomic_t fscache_n_checkaux_obsolete;
71273+atomic_unchecked_t fscache_n_checkaux_none;
71274+atomic_unchecked_t fscache_n_checkaux_okay;
71275+atomic_unchecked_t fscache_n_checkaux_update;
71276+atomic_unchecked_t fscache_n_checkaux_obsolete;
71277
71278 atomic_t fscache_n_cop_alloc_object;
71279 atomic_t fscache_n_cop_lookup_object;
71280@@ -138,118 +138,118 @@ static int fscache_stats_show(struct seq_file *m, void *v)
71281 seq_puts(m, "FS-Cache statistics\n");
71282
71283 seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
71284- atomic_read(&fscache_n_cookie_index),
71285- atomic_read(&fscache_n_cookie_data),
71286- atomic_read(&fscache_n_cookie_special));
71287+ atomic_read_unchecked(&fscache_n_cookie_index),
71288+ atomic_read_unchecked(&fscache_n_cookie_data),
71289+ atomic_read_unchecked(&fscache_n_cookie_special));
71290
71291 seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
71292- atomic_read(&fscache_n_object_alloc),
71293- atomic_read(&fscache_n_object_no_alloc),
71294- atomic_read(&fscache_n_object_avail),
71295- atomic_read(&fscache_n_object_dead));
71296+ atomic_read_unchecked(&fscache_n_object_alloc),
71297+ atomic_read_unchecked(&fscache_n_object_no_alloc),
71298+ atomic_read_unchecked(&fscache_n_object_avail),
71299+ atomic_read_unchecked(&fscache_n_object_dead));
71300 seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
71301- atomic_read(&fscache_n_checkaux_none),
71302- atomic_read(&fscache_n_checkaux_okay),
71303- atomic_read(&fscache_n_checkaux_update),
71304- atomic_read(&fscache_n_checkaux_obsolete));
71305+ atomic_read_unchecked(&fscache_n_checkaux_none),
71306+ atomic_read_unchecked(&fscache_n_checkaux_okay),
71307+ atomic_read_unchecked(&fscache_n_checkaux_update),
71308+ atomic_read_unchecked(&fscache_n_checkaux_obsolete));
71309
71310 seq_printf(m, "Pages : mrk=%u unc=%u\n",
71311- atomic_read(&fscache_n_marks),
71312- atomic_read(&fscache_n_uncaches));
71313+ atomic_read_unchecked(&fscache_n_marks),
71314+ atomic_read_unchecked(&fscache_n_uncaches));
71315
71316 seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
71317 " oom=%u\n",
71318- atomic_read(&fscache_n_acquires),
71319- atomic_read(&fscache_n_acquires_null),
71320- atomic_read(&fscache_n_acquires_no_cache),
71321- atomic_read(&fscache_n_acquires_ok),
71322- atomic_read(&fscache_n_acquires_nobufs),
71323- atomic_read(&fscache_n_acquires_oom));
71324+ atomic_read_unchecked(&fscache_n_acquires),
71325+ atomic_read_unchecked(&fscache_n_acquires_null),
71326+ atomic_read_unchecked(&fscache_n_acquires_no_cache),
71327+ atomic_read_unchecked(&fscache_n_acquires_ok),
71328+ atomic_read_unchecked(&fscache_n_acquires_nobufs),
71329+ atomic_read_unchecked(&fscache_n_acquires_oom));
71330
71331 seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
71332- atomic_read(&fscache_n_object_lookups),
71333- atomic_read(&fscache_n_object_lookups_negative),
71334- atomic_read(&fscache_n_object_lookups_positive),
71335- atomic_read(&fscache_n_object_created),
71336- atomic_read(&fscache_n_object_lookups_timed_out));
71337+ atomic_read_unchecked(&fscache_n_object_lookups),
71338+ atomic_read_unchecked(&fscache_n_object_lookups_negative),
71339+ atomic_read_unchecked(&fscache_n_object_lookups_positive),
71340+ atomic_read_unchecked(&fscache_n_object_created),
71341+ atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
71342
71343 seq_printf(m, "Invals : n=%u run=%u\n",
71344- atomic_read(&fscache_n_invalidates),
71345- atomic_read(&fscache_n_invalidates_run));
71346+ atomic_read_unchecked(&fscache_n_invalidates),
71347+ atomic_read_unchecked(&fscache_n_invalidates_run));
71348
71349 seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
71350- atomic_read(&fscache_n_updates),
71351- atomic_read(&fscache_n_updates_null),
71352- atomic_read(&fscache_n_updates_run));
71353+ atomic_read_unchecked(&fscache_n_updates),
71354+ atomic_read_unchecked(&fscache_n_updates_null),
71355+ atomic_read_unchecked(&fscache_n_updates_run));
71356
71357 seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
71358- atomic_read(&fscache_n_relinquishes),
71359- atomic_read(&fscache_n_relinquishes_null),
71360- atomic_read(&fscache_n_relinquishes_waitcrt),
71361- atomic_read(&fscache_n_relinquishes_retire));
71362+ atomic_read_unchecked(&fscache_n_relinquishes),
71363+ atomic_read_unchecked(&fscache_n_relinquishes_null),
71364+ atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
71365+ atomic_read_unchecked(&fscache_n_relinquishes_retire));
71366
71367 seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
71368- atomic_read(&fscache_n_attr_changed),
71369- atomic_read(&fscache_n_attr_changed_ok),
71370- atomic_read(&fscache_n_attr_changed_nobufs),
71371- atomic_read(&fscache_n_attr_changed_nomem),
71372- atomic_read(&fscache_n_attr_changed_calls));
71373+ atomic_read_unchecked(&fscache_n_attr_changed),
71374+ atomic_read_unchecked(&fscache_n_attr_changed_ok),
71375+ atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
71376+ atomic_read_unchecked(&fscache_n_attr_changed_nomem),
71377+ atomic_read_unchecked(&fscache_n_attr_changed_calls));
71378
71379 seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
71380- atomic_read(&fscache_n_allocs),
71381- atomic_read(&fscache_n_allocs_ok),
71382- atomic_read(&fscache_n_allocs_wait),
71383- atomic_read(&fscache_n_allocs_nobufs),
71384- atomic_read(&fscache_n_allocs_intr));
71385+ atomic_read_unchecked(&fscache_n_allocs),
71386+ atomic_read_unchecked(&fscache_n_allocs_ok),
71387+ atomic_read_unchecked(&fscache_n_allocs_wait),
71388+ atomic_read_unchecked(&fscache_n_allocs_nobufs),
71389+ atomic_read_unchecked(&fscache_n_allocs_intr));
71390 seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
71391- atomic_read(&fscache_n_alloc_ops),
71392- atomic_read(&fscache_n_alloc_op_waits),
71393- atomic_read(&fscache_n_allocs_object_dead));
71394+ atomic_read_unchecked(&fscache_n_alloc_ops),
71395+ atomic_read_unchecked(&fscache_n_alloc_op_waits),
71396+ atomic_read_unchecked(&fscache_n_allocs_object_dead));
71397
71398 seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
71399 " int=%u oom=%u\n",
71400- atomic_read(&fscache_n_retrievals),
71401- atomic_read(&fscache_n_retrievals_ok),
71402- atomic_read(&fscache_n_retrievals_wait),
71403- atomic_read(&fscache_n_retrievals_nodata),
71404- atomic_read(&fscache_n_retrievals_nobufs),
71405- atomic_read(&fscache_n_retrievals_intr),
71406- atomic_read(&fscache_n_retrievals_nomem));
71407+ atomic_read_unchecked(&fscache_n_retrievals),
71408+ atomic_read_unchecked(&fscache_n_retrievals_ok),
71409+ atomic_read_unchecked(&fscache_n_retrievals_wait),
71410+ atomic_read_unchecked(&fscache_n_retrievals_nodata),
71411+ atomic_read_unchecked(&fscache_n_retrievals_nobufs),
71412+ atomic_read_unchecked(&fscache_n_retrievals_intr),
71413+ atomic_read_unchecked(&fscache_n_retrievals_nomem));
71414 seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
71415- atomic_read(&fscache_n_retrieval_ops),
71416- atomic_read(&fscache_n_retrieval_op_waits),
71417- atomic_read(&fscache_n_retrievals_object_dead));
71418+ atomic_read_unchecked(&fscache_n_retrieval_ops),
71419+ atomic_read_unchecked(&fscache_n_retrieval_op_waits),
71420+ atomic_read_unchecked(&fscache_n_retrievals_object_dead));
71421
71422 seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
71423- atomic_read(&fscache_n_stores),
71424- atomic_read(&fscache_n_stores_ok),
71425- atomic_read(&fscache_n_stores_again),
71426- atomic_read(&fscache_n_stores_nobufs),
71427- atomic_read(&fscache_n_stores_oom));
71428+ atomic_read_unchecked(&fscache_n_stores),
71429+ atomic_read_unchecked(&fscache_n_stores_ok),
71430+ atomic_read_unchecked(&fscache_n_stores_again),
71431+ atomic_read_unchecked(&fscache_n_stores_nobufs),
71432+ atomic_read_unchecked(&fscache_n_stores_oom));
71433 seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
71434- atomic_read(&fscache_n_store_ops),
71435- atomic_read(&fscache_n_store_calls),
71436- atomic_read(&fscache_n_store_pages),
71437- atomic_read(&fscache_n_store_radix_deletes),
71438- atomic_read(&fscache_n_store_pages_over_limit));
71439+ atomic_read_unchecked(&fscache_n_store_ops),
71440+ atomic_read_unchecked(&fscache_n_store_calls),
71441+ atomic_read_unchecked(&fscache_n_store_pages),
71442+ atomic_read_unchecked(&fscache_n_store_radix_deletes),
71443+ atomic_read_unchecked(&fscache_n_store_pages_over_limit));
71444
71445 seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
71446- atomic_read(&fscache_n_store_vmscan_not_storing),
71447- atomic_read(&fscache_n_store_vmscan_gone),
71448- atomic_read(&fscache_n_store_vmscan_busy),
71449- atomic_read(&fscache_n_store_vmscan_cancelled),
71450- atomic_read(&fscache_n_store_vmscan_wait));
71451+ atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
71452+ atomic_read_unchecked(&fscache_n_store_vmscan_gone),
71453+ atomic_read_unchecked(&fscache_n_store_vmscan_busy),
71454+ atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
71455+ atomic_read_unchecked(&fscache_n_store_vmscan_wait));
71456
71457 seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n",
71458- atomic_read(&fscache_n_op_pend),
71459- atomic_read(&fscache_n_op_run),
71460- atomic_read(&fscache_n_op_enqueue),
71461- atomic_read(&fscache_n_op_cancelled),
71462- atomic_read(&fscache_n_op_rejected));
71463+ atomic_read_unchecked(&fscache_n_op_pend),
71464+ atomic_read_unchecked(&fscache_n_op_run),
71465+ atomic_read_unchecked(&fscache_n_op_enqueue),
71466+ atomic_read_unchecked(&fscache_n_op_cancelled),
71467+ atomic_read_unchecked(&fscache_n_op_rejected));
71468 seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n",
71469- atomic_read(&fscache_n_op_deferred_release),
71470- atomic_read(&fscache_n_op_release),
71471- atomic_read(&fscache_n_op_gc));
71472+ atomic_read_unchecked(&fscache_n_op_deferred_release),
71473+ atomic_read_unchecked(&fscache_n_op_release),
71474+ atomic_read_unchecked(&fscache_n_op_gc));
71475
71476 seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
71477 atomic_read(&fscache_n_cop_alloc_object),
71478diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
71479index 28d0c7a..04816b7 100644
71480--- a/fs/fuse/cuse.c
71481+++ b/fs/fuse/cuse.c
71482@@ -611,10 +611,12 @@ static int __init cuse_init(void)
71483 INIT_LIST_HEAD(&cuse_conntbl[i]);
71484
71485 /* inherit and extend fuse_dev_operations */
71486- cuse_channel_fops = fuse_dev_operations;
71487- cuse_channel_fops.owner = THIS_MODULE;
71488- cuse_channel_fops.open = cuse_channel_open;
71489- cuse_channel_fops.release = cuse_channel_release;
71490+ pax_open_kernel();
71491+ memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
71492+ *(void **)&cuse_channel_fops.owner = THIS_MODULE;
71493+ *(void **)&cuse_channel_fops.open = cuse_channel_open;
71494+ *(void **)&cuse_channel_fops.release = cuse_channel_release;
71495+ pax_close_kernel();
71496
71497 cuse_class = class_create(THIS_MODULE, "cuse");
71498 if (IS_ERR(cuse_class))
71499diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
71500index 39706c5..a803c71 100644
71501--- a/fs/fuse/dev.c
71502+++ b/fs/fuse/dev.c
71503@@ -1405,7 +1405,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
71504 ret = 0;
71505 pipe_lock(pipe);
71506
71507- if (!pipe->readers) {
71508+ if (!atomic_read(&pipe->readers)) {
71509 send_sig(SIGPIPE, current, 0);
71510 if (!ret)
71511 ret = -EPIPE;
71512@@ -1434,7 +1434,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
71513 page_nr++;
71514 ret += buf->len;
71515
71516- if (pipe->files)
71517+ if (atomic_read(&pipe->files))
71518 do_wakeup = 1;
71519 }
71520
71521diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
71522index 1545b71..7fabe47 100644
71523--- a/fs/fuse/dir.c
71524+++ b/fs/fuse/dir.c
71525@@ -1394,7 +1394,7 @@ static char *read_link(struct dentry *dentry)
71526 return link;
71527 }
71528
71529-static void free_link(char *link)
71530+static void free_link(const char *link)
71531 {
71532 if (!IS_ERR(link))
71533 free_page((unsigned long) link);
71534diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
71535index f42dffb..4a4c435 100644
71536--- a/fs/gfs2/glock.c
71537+++ b/fs/gfs2/glock.c
71538@@ -385,9 +385,9 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state)
71539 if (held1 != held2) {
71540 GLOCK_BUG_ON(gl, __lockref_is_dead(&gl->gl_lockref));
71541 if (held2)
71542- gl->gl_lockref.count++;
71543+ __lockref_inc(&gl->gl_lockref);
71544 else
71545- gl->gl_lockref.count--;
71546+ __lockref_dec(&gl->gl_lockref);
71547 }
71548 if (held1 && held2 && list_empty(&gl->gl_holders))
71549 clear_bit(GLF_QUEUED, &gl->gl_flags);
71550@@ -614,9 +614,9 @@ out:
71551 out_sched:
71552 clear_bit(GLF_LOCK, &gl->gl_flags);
71553 smp_mb__after_atomic();
71554- gl->gl_lockref.count++;
71555+ __lockref_inc(&gl->gl_lockref);
71556 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71557- gl->gl_lockref.count--;
71558+ __lockref_dec(&gl->gl_lockref);
71559 return;
71560
71561 out_unlock:
71562@@ -742,7 +742,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
71563 gl->gl_sbd = sdp;
71564 gl->gl_flags = 0;
71565 gl->gl_name = name;
71566- gl->gl_lockref.count = 1;
71567+ __lockref_set(&gl->gl_lockref, 1);
71568 gl->gl_state = LM_ST_UNLOCKED;
71569 gl->gl_target = LM_ST_UNLOCKED;
71570 gl->gl_demote_state = LM_ST_EXCLUSIVE;
71571@@ -1020,9 +1020,9 @@ int gfs2_glock_nq(struct gfs2_holder *gh)
71572 if (unlikely((LM_FLAG_NOEXP & gh->gh_flags) &&
71573 test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))) {
71574 set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
71575- gl->gl_lockref.count++;
71576+ __lockref_inc(&gl->gl_lockref);
71577 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71578- gl->gl_lockref.count--;
71579+ __lockref_dec(&gl->gl_lockref);
71580 }
71581 run_queue(gl, 1);
71582 spin_unlock(&gl->gl_spin);
71583@@ -1325,7 +1325,7 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
71584 }
71585 }
71586
71587- gl->gl_lockref.count++;
71588+ __lockref_inc(&gl->gl_lockref);
71589 set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
71590 spin_unlock(&gl->gl_spin);
71591
71592@@ -1384,12 +1384,12 @@ add_back_to_lru:
71593 goto add_back_to_lru;
71594 }
71595 clear_bit(GLF_LRU, &gl->gl_flags);
71596- gl->gl_lockref.count++;
71597+ __lockref_inc(&gl->gl_lockref);
71598 if (demote_ok(gl))
71599 handle_callback(gl, LM_ST_UNLOCKED, 0, false);
71600 WARN_ON(!test_and_clear_bit(GLF_LOCK, &gl->gl_flags));
71601 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71602- gl->gl_lockref.count--;
71603+ __lockref_dec(&gl->gl_lockref);
71604 spin_unlock(&gl->gl_spin);
71605 cond_resched_lock(&lru_lock);
71606 }
71607@@ -1719,7 +1719,7 @@ void gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
71608 state2str(gl->gl_demote_state), dtime,
71609 atomic_read(&gl->gl_ail_count),
71610 atomic_read(&gl->gl_revokes),
71611- (int)gl->gl_lockref.count, gl->gl_hold_time);
71612+ __lockref_read(&gl->gl_lockref), gl->gl_hold_time);
71613
71614 list_for_each_entry(gh, &gl->gl_holders, gh_list)
71615 dump_holder(seq, gh);
71616diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
71617index fe91951..ce38a6e 100644
71618--- a/fs/gfs2/glops.c
71619+++ b/fs/gfs2/glops.c
71620@@ -544,9 +544,9 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
71621
71622 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
71623 gl->gl_state == LM_ST_SHARED && ip) {
71624- gl->gl_lockref.count++;
71625+ __lockref_inc(&gl->gl_lockref);
71626 if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
71627- gl->gl_lockref.count--;
71628+ __lockref_dec(&gl->gl_lockref);
71629 }
71630 }
71631
71632diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
71633index 3aa17d4..b338075 100644
71634--- a/fs/gfs2/quota.c
71635+++ b/fs/gfs2/quota.c
71636@@ -154,7 +154,7 @@ static enum lru_status gfs2_qd_isolate(struct list_head *item,
71637 if (!spin_trylock(&qd->qd_lockref.lock))
71638 return LRU_SKIP;
71639
71640- if (qd->qd_lockref.count == 0) {
71641+ if (__lockref_read(&qd->qd_lockref) == 0) {
71642 lockref_mark_dead(&qd->qd_lockref);
71643 list_lru_isolate_move(lru, &qd->qd_lru, dispose);
71644 }
71645@@ -221,7 +221,7 @@ static struct gfs2_quota_data *qd_alloc(unsigned hash, struct gfs2_sbd *sdp, str
71646 return NULL;
71647
71648 qd->qd_sbd = sdp;
71649- qd->qd_lockref.count = 1;
71650+ __lockref_set(&qd->qd_lockref, 1);
71651 spin_lock_init(&qd->qd_lockref.lock);
71652 qd->qd_id = qid;
71653 qd->qd_slot = -1;
71654@@ -312,7 +312,7 @@ static void qd_put(struct gfs2_quota_data *qd)
71655 if (lockref_put_or_lock(&qd->qd_lockref))
71656 return;
71657
71658- qd->qd_lockref.count = 0;
71659+ __lockref_set(&qd->qd_lockref, 0);
71660 list_lru_add(&gfs2_qd_lru, &qd->qd_lru);
71661 spin_unlock(&qd->qd_lockref.lock);
71662
71663diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
71664index fd62cae..3494dfa 100644
71665--- a/fs/hostfs/hostfs_kern.c
71666+++ b/fs/hostfs/hostfs_kern.c
71667@@ -908,7 +908,7 @@ static void *hostfs_follow_link(struct dentry *dentry, struct nameidata *nd)
71668
71669 static void hostfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
71670 {
71671- char *s = nd_get_link(nd);
71672+ const char *s = nd_get_link(nd);
71673 if (!IS_ERR(s))
71674 __putname(s);
71675 }
71676diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
71677index c274aca..772fa5e 100644
71678--- a/fs/hugetlbfs/inode.c
71679+++ b/fs/hugetlbfs/inode.c
71680@@ -148,6 +148,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
71681 struct mm_struct *mm = current->mm;
71682 struct vm_area_struct *vma;
71683 struct hstate *h = hstate_file(file);
71684+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
71685 struct vm_unmapped_area_info info;
71686
71687 if (len & ~huge_page_mask(h))
71688@@ -161,17 +162,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
71689 return addr;
71690 }
71691
71692+#ifdef CONFIG_PAX_RANDMMAP
71693+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
71694+#endif
71695+
71696 if (addr) {
71697 addr = ALIGN(addr, huge_page_size(h));
71698 vma = find_vma(mm, addr);
71699- if (TASK_SIZE - len >= addr &&
71700- (!vma || addr + len <= vma->vm_start))
71701+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
71702 return addr;
71703 }
71704
71705 info.flags = 0;
71706 info.length = len;
71707 info.low_limit = TASK_UNMAPPED_BASE;
71708+
71709+#ifdef CONFIG_PAX_RANDMMAP
71710+ if (mm->pax_flags & MF_PAX_RANDMMAP)
71711+ info.low_limit += mm->delta_mmap;
71712+#endif
71713+
71714 info.high_limit = TASK_SIZE;
71715 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
71716 info.align_offset = 0;
71717@@ -912,7 +922,7 @@ static struct file_system_type hugetlbfs_fs_type = {
71718 };
71719 MODULE_ALIAS_FS("hugetlbfs");
71720
71721-static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
71722+struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
71723
71724 static int can_do_hugetlb_shm(void)
71725 {
71726diff --git a/fs/inode.c b/fs/inode.c
71727index f00b16f..b653fea 100644
71728--- a/fs/inode.c
71729+++ b/fs/inode.c
71730@@ -830,16 +830,20 @@ unsigned int get_next_ino(void)
71731 unsigned int *p = &get_cpu_var(last_ino);
71732 unsigned int res = *p;
71733
71734+start:
71735+
71736 #ifdef CONFIG_SMP
71737 if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
71738- static atomic_t shared_last_ino;
71739- int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
71740+ static atomic_unchecked_t shared_last_ino;
71741+ int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
71742
71743 res = next - LAST_INO_BATCH;
71744 }
71745 #endif
71746
71747- *p = ++res;
71748+ if (unlikely(!++res))
71749+ goto start; /* never zero */
71750+ *p = res;
71751 put_cpu_var(last_ino);
71752 return res;
71753 }
71754diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
71755index 4a6cf28..d3a29d3 100644
71756--- a/fs/jffs2/erase.c
71757+++ b/fs/jffs2/erase.c
71758@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
71759 struct jffs2_unknown_node marker = {
71760 .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
71761 .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
71762- .totlen = cpu_to_je32(c->cleanmarker_size)
71763+ .totlen = cpu_to_je32(c->cleanmarker_size),
71764+ .hdr_crc = cpu_to_je32(0)
71765 };
71766
71767 jffs2_prealloc_raw_node_refs(c, jeb, 1);
71768diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
71769index 09ed551..45684f8 100644
71770--- a/fs/jffs2/wbuf.c
71771+++ b/fs/jffs2/wbuf.c
71772@@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
71773 {
71774 .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
71775 .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
71776- .totlen = constant_cpu_to_je32(8)
71777+ .totlen = constant_cpu_to_je32(8),
71778+ .hdr_crc = constant_cpu_to_je32(0)
71779 };
71780
71781 /*
71782diff --git a/fs/jfs/super.c b/fs/jfs/super.c
71783index 5d30c56..8c45372 100644
71784--- a/fs/jfs/super.c
71785+++ b/fs/jfs/super.c
71786@@ -901,7 +901,7 @@ static int __init init_jfs_fs(void)
71787
71788 jfs_inode_cachep =
71789 kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
71790- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
71791+ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
71792 init_once);
71793 if (jfs_inode_cachep == NULL)
71794 return -ENOMEM;
71795diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
71796index 6acc964..eca491f 100644
71797--- a/fs/kernfs/dir.c
71798+++ b/fs/kernfs/dir.c
71799@@ -182,7 +182,7 @@ struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn)
71800 *
71801 * Returns 31 bit hash of ns + name (so it fits in an off_t )
71802 */
71803-static unsigned int kernfs_name_hash(const char *name, const void *ns)
71804+static unsigned int kernfs_name_hash(const unsigned char *name, const void *ns)
71805 {
71806 unsigned long hash = init_name_hash();
71807 unsigned int len = strlen(name);
71808@@ -831,6 +831,12 @@ static int kernfs_iop_mkdir(struct inode *dir, struct dentry *dentry,
71809 ret = scops->mkdir(parent, dentry->d_name.name, mode);
71810
71811 kernfs_put_active(parent);
71812+
71813+ if (!ret) {
71814+ struct dentry *dentry_ret = kernfs_iop_lookup(dir, dentry, 0);
71815+ ret = PTR_ERR_OR_ZERO(dentry_ret);
71816+ }
71817+
71818 return ret;
71819 }
71820
71821diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
71822index 2bacb99..f745182 100644
71823--- a/fs/kernfs/file.c
71824+++ b/fs/kernfs/file.c
71825@@ -34,7 +34,7 @@ static DEFINE_MUTEX(kernfs_open_file_mutex);
71826
71827 struct kernfs_open_node {
71828 atomic_t refcnt;
71829- atomic_t event;
71830+ atomic_unchecked_t event;
71831 wait_queue_head_t poll;
71832 struct list_head files; /* goes through kernfs_open_file.list */
71833 };
71834@@ -163,7 +163,7 @@ static int kernfs_seq_show(struct seq_file *sf, void *v)
71835 {
71836 struct kernfs_open_file *of = sf->private;
71837
71838- of->event = atomic_read(&of->kn->attr.open->event);
71839+ of->event = atomic_read_unchecked(&of->kn->attr.open->event);
71840
71841 return of->kn->attr.ops->seq_show(sf, v);
71842 }
71843@@ -207,7 +207,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
71844 goto out_free;
71845 }
71846
71847- of->event = atomic_read(&of->kn->attr.open->event);
71848+ of->event = atomic_read_unchecked(&of->kn->attr.open->event);
71849 ops = kernfs_ops(of->kn);
71850 if (ops->read)
71851 len = ops->read(of, buf, len, *ppos);
71852@@ -272,7 +272,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
71853 {
71854 struct kernfs_open_file *of = kernfs_of(file);
71855 const struct kernfs_ops *ops;
71856- size_t len;
71857+ ssize_t len;
71858 char *buf;
71859
71860 if (of->atomic_write_len) {
71861@@ -385,12 +385,12 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
71862 return ret;
71863 }
71864
71865-static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
71866- void *buf, int len, int write)
71867+static ssize_t kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
71868+ void *buf, size_t len, int write)
71869 {
71870 struct file *file = vma->vm_file;
71871 struct kernfs_open_file *of = kernfs_of(file);
71872- int ret;
71873+ ssize_t ret;
71874
71875 if (!of->vm_ops)
71876 return -EINVAL;
71877@@ -569,7 +569,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
71878 return -ENOMEM;
71879
71880 atomic_set(&new_on->refcnt, 0);
71881- atomic_set(&new_on->event, 1);
71882+ atomic_set_unchecked(&new_on->event, 1);
71883 init_waitqueue_head(&new_on->poll);
71884 INIT_LIST_HEAD(&new_on->files);
71885 goto retry;
71886@@ -793,7 +793,7 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
71887
71888 kernfs_put_active(kn);
71889
71890- if (of->event != atomic_read(&on->event))
71891+ if (of->event != atomic_read_unchecked(&on->event))
71892 goto trigger;
71893
71894 return DEFAULT_POLLMASK;
71895@@ -824,7 +824,7 @@ repeat:
71896
71897 on = kn->attr.open;
71898 if (on) {
71899- atomic_inc(&on->event);
71900+ atomic_inc_unchecked(&on->event);
71901 wake_up_interruptible(&on->poll);
71902 }
71903
71904diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
71905index 8a19889..4c3069a 100644
71906--- a/fs/kernfs/symlink.c
71907+++ b/fs/kernfs/symlink.c
71908@@ -128,7 +128,7 @@ static void *kernfs_iop_follow_link(struct dentry *dentry, struct nameidata *nd)
71909 static void kernfs_iop_put_link(struct dentry *dentry, struct nameidata *nd,
71910 void *cookie)
71911 {
71912- char *page = nd_get_link(nd);
71913+ const char *page = nd_get_link(nd);
71914 if (!IS_ERR(page))
71915 free_page((unsigned long)page);
71916 }
71917diff --git a/fs/libfs.c b/fs/libfs.c
71918index 0ab6512..cd9982d 100644
71919--- a/fs/libfs.c
71920+++ b/fs/libfs.c
71921@@ -160,6 +160,9 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
71922
71923 for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
71924 struct dentry *next = list_entry(p, struct dentry, d_child);
71925+ char d_name[sizeof(next->d_iname)];
71926+ const unsigned char *name;
71927+
71928 spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
71929 if (!simple_positive(next)) {
71930 spin_unlock(&next->d_lock);
71931@@ -168,7 +171,12 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
71932
71933 spin_unlock(&next->d_lock);
71934 spin_unlock(&dentry->d_lock);
71935- if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
71936+ name = next->d_name.name;
71937+ if (name == next->d_iname) {
71938+ memcpy(d_name, name, next->d_name.len);
71939+ name = d_name;
71940+ }
71941+ if (!dir_emit(ctx, name, next->d_name.len,
71942 next->d_inode->i_ino, dt_type(next->d_inode)))
71943 return 0;
71944 spin_lock(&dentry->d_lock);
71945@@ -1027,7 +1035,7 @@ EXPORT_SYMBOL(noop_fsync);
71946 void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
71947 void *cookie)
71948 {
71949- char *s = nd_get_link(nd);
71950+ const char *s = nd_get_link(nd);
71951 if (!IS_ERR(s))
71952 kfree(s);
71953 }
71954diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
71955index acd3947..1f896e2 100644
71956--- a/fs/lockd/clntproc.c
71957+++ b/fs/lockd/clntproc.c
71958@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
71959 /*
71960 * Cookie counter for NLM requests
71961 */
71962-static atomic_t nlm_cookie = ATOMIC_INIT(0x1234);
71963+static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234);
71964
71965 void nlmclnt_next_cookie(struct nlm_cookie *c)
71966 {
71967- u32 cookie = atomic_inc_return(&nlm_cookie);
71968+ u32 cookie = atomic_inc_return_unchecked(&nlm_cookie);
71969
71970 memcpy(c->data, &cookie, 4);
71971 c->len=4;
71972diff --git a/fs/mount.h b/fs/mount.h
71973index 6a61c2b..bd79179 100644
71974--- a/fs/mount.h
71975+++ b/fs/mount.h
71976@@ -13,7 +13,7 @@ struct mnt_namespace {
71977 u64 seq; /* Sequence number to prevent loops */
71978 wait_queue_head_t poll;
71979 u64 event;
71980-};
71981+} __randomize_layout;
71982
71983 struct mnt_pcp {
71984 int mnt_count;
71985@@ -65,7 +65,7 @@ struct mount {
71986 struct hlist_head mnt_pins;
71987 struct fs_pin mnt_umount;
71988 struct dentry *mnt_ex_mountpoint;
71989-};
71990+} __randomize_layout;
71991
71992 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
71993
71994diff --git a/fs/namei.c b/fs/namei.c
71995index 50a8583..44c470a 100644
71996--- a/fs/namei.c
71997+++ b/fs/namei.c
71998@@ -337,17 +337,32 @@ int generic_permission(struct inode *inode, int mask)
71999 if (ret != -EACCES)
72000 return ret;
72001
72002+#ifdef CONFIG_GRKERNSEC
72003+ /* we'll block if we have to log due to a denied capability use */
72004+ if (mask & MAY_NOT_BLOCK)
72005+ return -ECHILD;
72006+#endif
72007+
72008 if (S_ISDIR(inode->i_mode)) {
72009 /* DACs are overridable for directories */
72010- if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72011- return 0;
72012 if (!(mask & MAY_WRITE))
72013- if (capable_wrt_inode_uidgid(inode,
72014- CAP_DAC_READ_SEARCH))
72015+ if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
72016+ capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72017 return 0;
72018+ if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72019+ return 0;
72020 return -EACCES;
72021 }
72022 /*
72023+ * Searching includes executable on directories, else just read.
72024+ */
72025+ mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
72026+ if (mask == MAY_READ)
72027+ if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
72028+ capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72029+ return 0;
72030+
72031+ /*
72032 * Read/write DACs are always overridable.
72033 * Executable DACs are overridable when there is
72034 * at least one exec bit set.
72035@@ -356,14 +371,6 @@ int generic_permission(struct inode *inode, int mask)
72036 if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72037 return 0;
72038
72039- /*
72040- * Searching includes executable on directories, else just read.
72041- */
72042- mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
72043- if (mask == MAY_READ)
72044- if (capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72045- return 0;
72046-
72047 return -EACCES;
72048 }
72049 EXPORT_SYMBOL(generic_permission);
72050@@ -503,7 +510,7 @@ struct nameidata {
72051 int last_type;
72052 unsigned depth;
72053 struct file *base;
72054- char *saved_names[MAX_NESTED_LINKS + 1];
72055+ const char *saved_names[MAX_NESTED_LINKS + 1];
72056 };
72057
72058 /*
72059@@ -714,13 +721,13 @@ void nd_jump_link(struct nameidata *nd, struct path *path)
72060 nd->flags |= LOOKUP_JUMPED;
72061 }
72062
72063-void nd_set_link(struct nameidata *nd, char *path)
72064+void nd_set_link(struct nameidata *nd, const char *path)
72065 {
72066 nd->saved_names[nd->depth] = path;
72067 }
72068 EXPORT_SYMBOL(nd_set_link);
72069
72070-char *nd_get_link(struct nameidata *nd)
72071+const char *nd_get_link(const struct nameidata *nd)
72072 {
72073 return nd->saved_names[nd->depth];
72074 }
72075@@ -855,7 +862,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
72076 {
72077 struct dentry *dentry = link->dentry;
72078 int error;
72079- char *s;
72080+ const char *s;
72081
72082 BUG_ON(nd->flags & LOOKUP_RCU);
72083
72084@@ -876,6 +883,12 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
72085 if (error)
72086 goto out_put_nd_path;
72087
72088+ if (gr_handle_follow_link(dentry->d_parent->d_inode,
72089+ dentry->d_inode, dentry, nd->path.mnt)) {
72090+ error = -EACCES;
72091+ goto out_put_nd_path;
72092+ }
72093+
72094 nd->last_type = LAST_BIND;
72095 *p = dentry->d_inode->i_op->follow_link(dentry, nd);
72096 error = PTR_ERR(*p);
72097@@ -1640,6 +1653,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
72098 if (res)
72099 break;
72100 res = walk_component(nd, path, LOOKUP_FOLLOW);
72101+ if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
72102+ res = -EACCES;
72103 put_link(nd, &link, cookie);
72104 } while (res > 0);
72105
72106@@ -1712,7 +1727,7 @@ EXPORT_SYMBOL(full_name_hash);
72107 static inline u64 hash_name(const char *name)
72108 {
72109 unsigned long a, b, adata, bdata, mask, hash, len;
72110- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
72111+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
72112
72113 hash = a = 0;
72114 len = -sizeof(unsigned long);
72115@@ -2007,6 +2022,8 @@ static int path_lookupat(int dfd, const char *name,
72116 if (err)
72117 break;
72118 err = lookup_last(nd, &path);
72119+ if (!err && gr_handle_symlink_owner(&link, nd->inode))
72120+ err = -EACCES;
72121 put_link(nd, &link, cookie);
72122 }
72123 }
72124@@ -2014,6 +2031,13 @@ static int path_lookupat(int dfd, const char *name,
72125 if (!err)
72126 err = complete_walk(nd);
72127
72128+ if (!err && !(nd->flags & LOOKUP_PARENT)) {
72129+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
72130+ path_put(&nd->path);
72131+ err = -ENOENT;
72132+ }
72133+ }
72134+
72135 if (!err && nd->flags & LOOKUP_DIRECTORY) {
72136 if (!d_can_lookup(nd->path.dentry)) {
72137 path_put(&nd->path);
72138@@ -2035,8 +2059,15 @@ static int filename_lookup(int dfd, struct filename *name,
72139 retval = path_lookupat(dfd, name->name,
72140 flags | LOOKUP_REVAL, nd);
72141
72142- if (likely(!retval))
72143+ if (likely(!retval)) {
72144 audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT);
72145+ if (name->name[0] != '/' && nd->path.dentry && nd->inode) {
72146+ if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) {
72147+ path_put(&nd->path);
72148+ return -ENOENT;
72149+ }
72150+ }
72151+ }
72152 return retval;
72153 }
72154
72155@@ -2615,6 +2646,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
72156 if (flag & O_NOATIME && !inode_owner_or_capable(inode))
72157 return -EPERM;
72158
72159+ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
72160+ return -EPERM;
72161+ if (gr_handle_rawio(inode))
72162+ return -EPERM;
72163+ if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
72164+ return -EACCES;
72165+
72166 return 0;
72167 }
72168
72169@@ -2846,7 +2884,7 @@ looked_up:
72170 * cleared otherwise prior to returning.
72171 */
72172 static int lookup_open(struct nameidata *nd, struct path *path,
72173- struct file *file,
72174+ struct path *link, struct file *file,
72175 const struct open_flags *op,
72176 bool got_write, int *opened)
72177 {
72178@@ -2881,6 +2919,17 @@ static int lookup_open(struct nameidata *nd, struct path *path,
72179 /* Negative dentry, just create the file */
72180 if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
72181 umode_t mode = op->mode;
72182+
72183+ if (link && gr_handle_symlink_owner(link, dir->d_inode)) {
72184+ error = -EACCES;
72185+ goto out_dput;
72186+ }
72187+
72188+ if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
72189+ error = -EACCES;
72190+ goto out_dput;
72191+ }
72192+
72193 if (!IS_POSIXACL(dir->d_inode))
72194 mode &= ~current_umask();
72195 /*
72196@@ -2902,6 +2951,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
72197 nd->flags & LOOKUP_EXCL);
72198 if (error)
72199 goto out_dput;
72200+ else
72201+ gr_handle_create(dentry, nd->path.mnt);
72202 }
72203 out_no_open:
72204 path->dentry = dentry;
72205@@ -2916,7 +2967,7 @@ out_dput:
72206 /*
72207 * Handle the last step of open()
72208 */
72209-static int do_last(struct nameidata *nd, struct path *path,
72210+static int do_last(struct nameidata *nd, struct path *path, struct path *link,
72211 struct file *file, const struct open_flags *op,
72212 int *opened, struct filename *name)
72213 {
72214@@ -2966,6 +3017,15 @@ static int do_last(struct nameidata *nd, struct path *path,
72215 if (error)
72216 return error;
72217
72218+ if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
72219+ error = -ENOENT;
72220+ goto out;
72221+ }
72222+ if (link && gr_handle_symlink_owner(link, nd->inode)) {
72223+ error = -EACCES;
72224+ goto out;
72225+ }
72226+
72227 audit_inode(name, dir, LOOKUP_PARENT);
72228 error = -EISDIR;
72229 /* trailing slashes? */
72230@@ -2985,7 +3045,7 @@ retry_lookup:
72231 */
72232 }
72233 mutex_lock(&dir->d_inode->i_mutex);
72234- error = lookup_open(nd, path, file, op, got_write, opened);
72235+ error = lookup_open(nd, path, link, file, op, got_write, opened);
72236 mutex_unlock(&dir->d_inode->i_mutex);
72237
72238 if (error <= 0) {
72239@@ -3009,11 +3069,28 @@ retry_lookup:
72240 goto finish_open_created;
72241 }
72242
72243+ if (!gr_acl_handle_hidden_file(path->dentry, nd->path.mnt)) {
72244+ error = -ENOENT;
72245+ goto exit_dput;
72246+ }
72247+ if (link && gr_handle_symlink_owner(link, path->dentry->d_inode)) {
72248+ error = -EACCES;
72249+ goto exit_dput;
72250+ }
72251+
72252 /*
72253 * create/update audit record if it already exists.
72254 */
72255- if (d_is_positive(path->dentry))
72256+ if (d_is_positive(path->dentry)) {
72257+ /* only check if O_CREAT is specified, all other checks need to go
72258+ into may_open */
72259+ if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
72260+ error = -EACCES;
72261+ goto exit_dput;
72262+ }
72263+
72264 audit_inode(name, path->dentry, 0);
72265+ }
72266
72267 /*
72268 * If atomic_open() acquired write access it is dropped now due to
72269@@ -3055,6 +3132,11 @@ finish_lookup:
72270 }
72271 }
72272 BUG_ON(inode != path->dentry->d_inode);
72273+ /* if we're resolving a symlink to another symlink */
72274+ if (link && gr_handle_symlink_owner(link, inode)) {
72275+ error = -EACCES;
72276+ goto out;
72277+ }
72278 return 1;
72279 }
72280
72281@@ -3074,7 +3156,18 @@ finish_open:
72282 path_put(&save_parent);
72283 return error;
72284 }
72285+
72286+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
72287+ error = -ENOENT;
72288+ goto out;
72289+ }
72290+ if (link && gr_handle_symlink_owner(link, nd->inode)) {
72291+ error = -EACCES;
72292+ goto out;
72293+ }
72294+
72295 audit_inode(name, nd->path.dentry, 0);
72296+
72297 error = -EISDIR;
72298 if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
72299 goto out;
72300@@ -3235,7 +3328,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
72301 if (unlikely(error))
72302 goto out;
72303
72304- error = do_last(nd, &path, file, op, &opened, pathname);
72305+ error = do_last(nd, &path, NULL, file, op, &opened, pathname);
72306 while (unlikely(error > 0)) { /* trailing symlink */
72307 struct path link = path;
72308 void *cookie;
72309@@ -3253,7 +3346,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
72310 error = follow_link(&link, nd, &cookie);
72311 if (unlikely(error))
72312 break;
72313- error = do_last(nd, &path, file, op, &opened, pathname);
72314+ error = do_last(nd, &path, &link, file, op, &opened, pathname);
72315 put_link(nd, &link, cookie);
72316 }
72317 out:
72318@@ -3356,9 +3449,11 @@ static struct dentry *filename_create(int dfd, struct filename *name,
72319 goto unlock;
72320
72321 error = -EEXIST;
72322- if (d_is_positive(dentry))
72323+ if (d_is_positive(dentry)) {
72324+ if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt))
72325+ error = -ENOENT;
72326 goto fail;
72327-
72328+ }
72329 /*
72330 * Special case - lookup gave negative, but... we had foo/bar/
72331 * From the vfs_mknod() POV we just have a negative dentry -
72332@@ -3423,6 +3518,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
72333 }
72334 EXPORT_SYMBOL(user_path_create);
72335
72336+static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
72337+{
72338+ struct filename *tmp = getname(pathname);
72339+ struct dentry *res;
72340+ if (IS_ERR(tmp))
72341+ return ERR_CAST(tmp);
72342+ res = kern_path_create(dfd, tmp->name, path, lookup_flags);
72343+ if (IS_ERR(res))
72344+ putname(tmp);
72345+ else
72346+ *to = tmp;
72347+ return res;
72348+}
72349+
72350 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
72351 {
72352 int error = may_create(dir, dentry);
72353@@ -3486,6 +3595,17 @@ retry:
72354
72355 if (!IS_POSIXACL(path.dentry->d_inode))
72356 mode &= ~current_umask();
72357+
72358+ if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
72359+ error = -EPERM;
72360+ goto out;
72361+ }
72362+
72363+ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
72364+ error = -EACCES;
72365+ goto out;
72366+ }
72367+
72368 error = security_path_mknod(&path, dentry, mode, dev);
72369 if (error)
72370 goto out;
72371@@ -3501,6 +3621,8 @@ retry:
72372 error = vfs_mknod(path.dentry->d_inode,dentry,mode,0);
72373 break;
72374 }
72375+ if (!error)
72376+ gr_handle_create(dentry, path.mnt);
72377 out:
72378 done_path_create(&path, dentry);
72379 if (retry_estale(error, lookup_flags)) {
72380@@ -3555,9 +3677,16 @@ retry:
72381
72382 if (!IS_POSIXACL(path.dentry->d_inode))
72383 mode &= ~current_umask();
72384+ if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
72385+ error = -EACCES;
72386+ goto out;
72387+ }
72388 error = security_path_mkdir(&path, dentry, mode);
72389 if (!error)
72390 error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
72391+ if (!error)
72392+ gr_handle_create(dentry, path.mnt);
72393+out:
72394 done_path_create(&path, dentry);
72395 if (retry_estale(error, lookup_flags)) {
72396 lookup_flags |= LOOKUP_REVAL;
72397@@ -3590,7 +3719,7 @@ void dentry_unhash(struct dentry *dentry)
72398 {
72399 shrink_dcache_parent(dentry);
72400 spin_lock(&dentry->d_lock);
72401- if (dentry->d_lockref.count == 1)
72402+ if (__lockref_read(&dentry->d_lockref) == 1)
72403 __d_drop(dentry);
72404 spin_unlock(&dentry->d_lock);
72405 }
72406@@ -3641,6 +3770,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
72407 struct filename *name;
72408 struct dentry *dentry;
72409 struct nameidata nd;
72410+ u64 saved_ino = 0;
72411+ dev_t saved_dev = 0;
72412 unsigned int lookup_flags = 0;
72413 retry:
72414 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
72415@@ -3673,10 +3804,21 @@ retry:
72416 error = -ENOENT;
72417 goto exit3;
72418 }
72419+
72420+ saved_ino = gr_get_ino_from_dentry(dentry);
72421+ saved_dev = gr_get_dev_from_dentry(dentry);
72422+
72423+ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
72424+ error = -EACCES;
72425+ goto exit3;
72426+ }
72427+
72428 error = security_path_rmdir(&nd.path, dentry);
72429 if (error)
72430 goto exit3;
72431 error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
72432+ if (!error && (saved_dev || saved_ino))
72433+ gr_handle_delete(saved_ino, saved_dev);
72434 exit3:
72435 dput(dentry);
72436 exit2:
72437@@ -3769,6 +3911,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
72438 struct nameidata nd;
72439 struct inode *inode = NULL;
72440 struct inode *delegated_inode = NULL;
72441+ u64 saved_ino = 0;
72442+ dev_t saved_dev = 0;
72443 unsigned int lookup_flags = 0;
72444 retry:
72445 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
72446@@ -3795,10 +3939,22 @@ retry_deleg:
72447 if (d_is_negative(dentry))
72448 goto slashes;
72449 ihold(inode);
72450+
72451+ if (inode->i_nlink <= 1) {
72452+ saved_ino = gr_get_ino_from_dentry(dentry);
72453+ saved_dev = gr_get_dev_from_dentry(dentry);
72454+ }
72455+ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
72456+ error = -EACCES;
72457+ goto exit2;
72458+ }
72459+
72460 error = security_path_unlink(&nd.path, dentry);
72461 if (error)
72462 goto exit2;
72463 error = vfs_unlink(nd.path.dentry->d_inode, dentry, &delegated_inode);
72464+ if (!error && (saved_ino || saved_dev))
72465+ gr_handle_delete(saved_ino, saved_dev);
72466 exit2:
72467 dput(dentry);
72468 }
72469@@ -3887,9 +4043,17 @@ retry:
72470 if (IS_ERR(dentry))
72471 goto out_putname;
72472
72473+ if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
72474+ error = -EACCES;
72475+ goto out;
72476+ }
72477+
72478 error = security_path_symlink(&path, dentry, from->name);
72479 if (!error)
72480 error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
72481+ if (!error)
72482+ gr_handle_create(dentry, path.mnt);
72483+out:
72484 done_path_create(&path, dentry);
72485 if (retry_estale(error, lookup_flags)) {
72486 lookup_flags |= LOOKUP_REVAL;
72487@@ -3993,6 +4157,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
72488 struct dentry *new_dentry;
72489 struct path old_path, new_path;
72490 struct inode *delegated_inode = NULL;
72491+ struct filename *to = NULL;
72492 int how = 0;
72493 int error;
72494
72495@@ -4016,7 +4181,7 @@ retry:
72496 if (error)
72497 return error;
72498
72499- new_dentry = user_path_create(newdfd, newname, &new_path,
72500+ new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
72501 (how & LOOKUP_REVAL));
72502 error = PTR_ERR(new_dentry);
72503 if (IS_ERR(new_dentry))
72504@@ -4028,11 +4193,28 @@ retry:
72505 error = may_linkat(&old_path);
72506 if (unlikely(error))
72507 goto out_dput;
72508+
72509+ if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
72510+ old_path.dentry->d_inode,
72511+ old_path.dentry->d_inode->i_mode, to)) {
72512+ error = -EACCES;
72513+ goto out_dput;
72514+ }
72515+
72516+ if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
72517+ old_path.dentry, old_path.mnt, to)) {
72518+ error = -EACCES;
72519+ goto out_dput;
72520+ }
72521+
72522 error = security_path_link(old_path.dentry, &new_path, new_dentry);
72523 if (error)
72524 goto out_dput;
72525 error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
72526+ if (!error)
72527+ gr_handle_create(new_dentry, new_path.mnt);
72528 out_dput:
72529+ putname(to);
72530 done_path_create(&new_path, new_dentry);
72531 if (delegated_inode) {
72532 error = break_deleg_wait(&delegated_inode);
72533@@ -4348,6 +4530,20 @@ retry_deleg:
72534 if (new_dentry == trap)
72535 goto exit5;
72536
72537+ if (gr_bad_chroot_rename(old_dentry, oldnd.path.mnt, new_dentry, newnd.path.mnt)) {
72538+ /* use EXDEV error to cause 'mv' to switch to an alternative
72539+ * method for usability
72540+ */
72541+ error = -EXDEV;
72542+ goto exit5;
72543+ }
72544+
72545+ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
72546+ old_dentry, old_dir->d_inode, oldnd.path.mnt,
72547+ to, flags);
72548+ if (error)
72549+ goto exit5;
72550+
72551 error = security_path_rename(&oldnd.path, old_dentry,
72552 &newnd.path, new_dentry, flags);
72553 if (error)
72554@@ -4355,6 +4551,9 @@ retry_deleg:
72555 error = vfs_rename(old_dir->d_inode, old_dentry,
72556 new_dir->d_inode, new_dentry,
72557 &delegated_inode, flags);
72558+ if (!error)
72559+ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
72560+ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0, flags);
72561 exit5:
72562 dput(new_dentry);
72563 exit4:
72564@@ -4411,14 +4610,24 @@ EXPORT_SYMBOL(vfs_whiteout);
72565
72566 int readlink_copy(char __user *buffer, int buflen, const char *link)
72567 {
72568+ char tmpbuf[64];
72569+ const char *newlink;
72570 int len = PTR_ERR(link);
72571+
72572 if (IS_ERR(link))
72573 goto out;
72574
72575 len = strlen(link);
72576 if (len > (unsigned) buflen)
72577 len = buflen;
72578- if (copy_to_user(buffer, link, len))
72579+
72580+ if (len < sizeof(tmpbuf)) {
72581+ memcpy(tmpbuf, link, len);
72582+ newlink = tmpbuf;
72583+ } else
72584+ newlink = link;
72585+
72586+ if (copy_to_user(buffer, newlink, len))
72587 len = -EFAULT;
72588 out:
72589 return len;
72590diff --git a/fs/namespace.c b/fs/namespace.c
72591index 38ed1e1..8500e56 100644
72592--- a/fs/namespace.c
72593+++ b/fs/namespace.c
72594@@ -1480,6 +1480,9 @@ static int do_umount(struct mount *mnt, int flags)
72595 if (!(sb->s_flags & MS_RDONLY))
72596 retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
72597 up_write(&sb->s_umount);
72598+
72599+ gr_log_remount(mnt->mnt_devname, retval);
72600+
72601 return retval;
72602 }
72603
72604@@ -1502,6 +1505,9 @@ static int do_umount(struct mount *mnt, int flags)
72605 }
72606 unlock_mount_hash();
72607 namespace_unlock();
72608+
72609+ gr_log_unmount(mnt->mnt_devname, retval);
72610+
72611 return retval;
72612 }
72613
72614@@ -1559,7 +1565,7 @@ static inline bool may_mount(void)
72615 * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
72616 */
72617
72618-SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
72619+SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
72620 {
72621 struct path path;
72622 struct mount *mnt;
72623@@ -1604,7 +1610,7 @@ out:
72624 /*
72625 * The 2.0 compatible umount. No flags.
72626 */
72627-SYSCALL_DEFINE1(oldumount, char __user *, name)
72628+SYSCALL_DEFINE1(oldumount, const char __user *, name)
72629 {
72630 return sys_umount(name, 0);
72631 }
72632@@ -2670,6 +2676,16 @@ long do_mount(const char *dev_name, const char __user *dir_name,
72633 MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
72634 MS_STRICTATIME);
72635
72636+ if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
72637+ retval = -EPERM;
72638+ goto dput_out;
72639+ }
72640+
72641+ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
72642+ retval = -EPERM;
72643+ goto dput_out;
72644+ }
72645+
72646 if (flags & MS_REMOUNT)
72647 retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
72648 data_page);
72649@@ -2683,7 +2699,10 @@ long do_mount(const char *dev_name, const char __user *dir_name,
72650 retval = do_new_mount(&path, type_page, flags, mnt_flags,
72651 dev_name, data_page);
72652 dput_out:
72653+ gr_log_mount(dev_name, &path, retval);
72654+
72655 path_put(&path);
72656+
72657 return retval;
72658 }
72659
72660@@ -2701,7 +2720,7 @@ static void free_mnt_ns(struct mnt_namespace *ns)
72661 * number incrementing at 10Ghz will take 12,427 years to wrap which
72662 * is effectively never, so we can ignore the possibility.
72663 */
72664-static atomic64_t mnt_ns_seq = ATOMIC64_INIT(1);
72665+static atomic64_unchecked_t mnt_ns_seq = ATOMIC64_INIT(1);
72666
72667 static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72668 {
72669@@ -2717,7 +2736,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72670 return ERR_PTR(ret);
72671 }
72672 new_ns->ns.ops = &mntns_operations;
72673- new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
72674+ new_ns->seq = atomic64_add_return_unchecked(1, &mnt_ns_seq);
72675 atomic_set(&new_ns->count, 1);
72676 new_ns->root = NULL;
72677 INIT_LIST_HEAD(&new_ns->list);
72678@@ -2727,7 +2746,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72679 return new_ns;
72680 }
72681
72682-struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
72683+__latent_entropy struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
72684 struct user_namespace *user_ns, struct fs_struct *new_fs)
72685 {
72686 struct mnt_namespace *new_ns;
72687@@ -2848,8 +2867,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
72688 }
72689 EXPORT_SYMBOL(mount_subtree);
72690
72691-SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
72692- char __user *, type, unsigned long, flags, void __user *, data)
72693+SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
72694+ const char __user *, type, unsigned long, flags, void __user *, data)
72695 {
72696 int ret;
72697 char *kernel_type;
72698@@ -2955,6 +2974,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
72699 if (error)
72700 goto out2;
72701
72702+ if (gr_handle_chroot_pivot()) {
72703+ error = -EPERM;
72704+ goto out2;
72705+ }
72706+
72707 get_fs_root(current->fs, &root);
72708 old_mp = lock_mount(&old);
72709 error = PTR_ERR(old_mp);
72710@@ -3235,7 +3259,7 @@ static int mntns_install(struct nsproxy *nsproxy, struct ns_common *ns)
72711 !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
72712 return -EPERM;
72713
72714- if (fs->users != 1)
72715+ if (atomic_read(&fs->users) != 1)
72716 return -EINVAL;
72717
72718 get_mnt_ns(mnt_ns);
72719diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
72720index 19ca95c..b28702c 100644
72721--- a/fs/nfs/callback_xdr.c
72722+++ b/fs/nfs/callback_xdr.c
72723@@ -51,7 +51,7 @@ struct callback_op {
72724 callback_decode_arg_t decode_args;
72725 callback_encode_res_t encode_res;
72726 long res_maxsize;
72727-};
72728+} __do_const;
72729
72730 static struct callback_op callback_ops[];
72731
72732diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
72733index d42dff6..ecbdf42 100644
72734--- a/fs/nfs/inode.c
72735+++ b/fs/nfs/inode.c
72736@@ -1270,16 +1270,16 @@ static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fat
72737 return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
72738 }
72739
72740-static atomic_long_t nfs_attr_generation_counter;
72741+static atomic_long_unchecked_t nfs_attr_generation_counter;
72742
72743 static unsigned long nfs_read_attr_generation_counter(void)
72744 {
72745- return atomic_long_read(&nfs_attr_generation_counter);
72746+ return atomic_long_read_unchecked(&nfs_attr_generation_counter);
72747 }
72748
72749 unsigned long nfs_inc_attr_generation_counter(void)
72750 {
72751- return atomic_long_inc_return(&nfs_attr_generation_counter);
72752+ return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
72753 }
72754 EXPORT_SYMBOL_GPL(nfs_inc_attr_generation_counter);
72755
72756diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
72757index 5416968..0942042 100644
72758--- a/fs/nfsd/nfs4proc.c
72759+++ b/fs/nfsd/nfs4proc.c
72760@@ -1496,7 +1496,7 @@ struct nfsd4_operation {
72761 nfsd4op_rsize op_rsize_bop;
72762 stateid_getter op_get_currentstateid;
72763 stateid_setter op_set_currentstateid;
72764-};
72765+} __do_const;
72766
72767 static struct nfsd4_operation nfsd4_ops[];
72768
72769diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
72770index 5b33ce1..c2a92aa 100644
72771--- a/fs/nfsd/nfs4xdr.c
72772+++ b/fs/nfsd/nfs4xdr.c
72773@@ -1703,7 +1703,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
72774
72775 typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
72776
72777-static nfsd4_dec nfsd4_dec_ops[] = {
72778+static const nfsd4_dec nfsd4_dec_ops[] = {
72779 [OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access,
72780 [OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close,
72781 [OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit,
72782diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
72783index 46ec934..f384e41 100644
72784--- a/fs/nfsd/nfscache.c
72785+++ b/fs/nfsd/nfscache.c
72786@@ -541,7 +541,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72787 struct kvec *resv = &rqstp->rq_res.head[0], *cachv;
72788 u32 hash;
72789 struct nfsd_drc_bucket *b;
72790- int len;
72791+ long len;
72792 size_t bufsize = 0;
72793
72794 if (!rp)
72795@@ -550,11 +550,14 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72796 hash = nfsd_cache_hash(rp->c_xid);
72797 b = &drc_hashtbl[hash];
72798
72799- len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
72800- len >>= 2;
72801+ if (statp) {
72802+ len = (char*)statp - (char*)resv->iov_base;
72803+ len = resv->iov_len - len;
72804+ len >>= 2;
72805+ }
72806
72807 /* Don't cache excessive amounts of data and XDR failures */
72808- if (!statp || len > (256 >> 2)) {
72809+ if (!statp || len > (256 >> 2) || len < 0) {
72810 nfsd_reply_cache_free(b, rp);
72811 return;
72812 }
72813@@ -562,7 +565,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72814 switch (cachetype) {
72815 case RC_REPLSTAT:
72816 if (len != 1)
72817- printk("nfsd: RC_REPLSTAT/reply len %d!\n",len);
72818+ printk("nfsd: RC_REPLSTAT/reply len %ld!\n",len);
72819 rp->c_replstat = *statp;
72820 break;
72821 case RC_REPLBUFF:
72822diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
72823index 3685265..e77261e 100644
72824--- a/fs/nfsd/vfs.c
72825+++ b/fs/nfsd/vfs.c
72826@@ -893,7 +893,7 @@ __be32 nfsd_readv(struct file *file, loff_t offset, struct kvec *vec, int vlen,
72827
72828 oldfs = get_fs();
72829 set_fs(KERNEL_DS);
72830- host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
72831+ host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
72832 set_fs(oldfs);
72833 return nfsd_finish_read(file, count, host_err);
72834 }
72835@@ -980,7 +980,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
72836
72837 /* Write the data. */
72838 oldfs = get_fs(); set_fs(KERNEL_DS);
72839- host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
72840+ host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos);
72841 set_fs(oldfs);
72842 if (host_err < 0)
72843 goto out_nfserr;
72844@@ -1525,7 +1525,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
72845 */
72846
72847 oldfs = get_fs(); set_fs(KERNEL_DS);
72848- host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
72849+ host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
72850 set_fs(oldfs);
72851
72852 if (host_err < 0)
72853diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
72854index 52ccd34..7a6b202 100644
72855--- a/fs/nls/nls_base.c
72856+++ b/fs/nls/nls_base.c
72857@@ -234,21 +234,25 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
72858
72859 int __register_nls(struct nls_table *nls, struct module *owner)
72860 {
72861- struct nls_table ** tmp = &tables;
72862+ struct nls_table *tmp = tables;
72863
72864 if (nls->next)
72865 return -EBUSY;
72866
72867- nls->owner = owner;
72868+ pax_open_kernel();
72869+ *(void **)&nls->owner = owner;
72870+ pax_close_kernel();
72871 spin_lock(&nls_lock);
72872- while (*tmp) {
72873- if (nls == *tmp) {
72874+ while (tmp) {
72875+ if (nls == tmp) {
72876 spin_unlock(&nls_lock);
72877 return -EBUSY;
72878 }
72879- tmp = &(*tmp)->next;
72880+ tmp = tmp->next;
72881 }
72882- nls->next = tables;
72883+ pax_open_kernel();
72884+ *(struct nls_table **)&nls->next = tables;
72885+ pax_close_kernel();
72886 tables = nls;
72887 spin_unlock(&nls_lock);
72888 return 0;
72889@@ -257,12 +261,14 @@ EXPORT_SYMBOL(__register_nls);
72890
72891 int unregister_nls(struct nls_table * nls)
72892 {
72893- struct nls_table ** tmp = &tables;
72894+ struct nls_table * const * tmp = &tables;
72895
72896 spin_lock(&nls_lock);
72897 while (*tmp) {
72898 if (nls == *tmp) {
72899- *tmp = nls->next;
72900+ pax_open_kernel();
72901+ *(struct nls_table **)tmp = nls->next;
72902+ pax_close_kernel();
72903 spin_unlock(&nls_lock);
72904 return 0;
72905 }
72906@@ -272,7 +278,7 @@ int unregister_nls(struct nls_table * nls)
72907 return -EINVAL;
72908 }
72909
72910-static struct nls_table *find_nls(char *charset)
72911+static struct nls_table *find_nls(const char *charset)
72912 {
72913 struct nls_table *nls;
72914 spin_lock(&nls_lock);
72915@@ -288,7 +294,7 @@ static struct nls_table *find_nls(char *charset)
72916 return nls;
72917 }
72918
72919-struct nls_table *load_nls(char *charset)
72920+struct nls_table *load_nls(const char *charset)
72921 {
72922 return try_then_request_module(find_nls(charset), "nls_%s", charset);
72923 }
72924diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
72925index 162b3f1..6076a7c 100644
72926--- a/fs/nls/nls_euc-jp.c
72927+++ b/fs/nls/nls_euc-jp.c
72928@@ -560,8 +560,10 @@ static int __init init_nls_euc_jp(void)
72929 p_nls = load_nls("cp932");
72930
72931 if (p_nls) {
72932- table.charset2upper = p_nls->charset2upper;
72933- table.charset2lower = p_nls->charset2lower;
72934+ pax_open_kernel();
72935+ *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
72936+ *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
72937+ pax_close_kernel();
72938 return register_nls(&table);
72939 }
72940
72941diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
72942index a80a741..7b96e1b 100644
72943--- a/fs/nls/nls_koi8-ru.c
72944+++ b/fs/nls/nls_koi8-ru.c
72945@@ -62,8 +62,10 @@ static int __init init_nls_koi8_ru(void)
72946 p_nls = load_nls("koi8-u");
72947
72948 if (p_nls) {
72949- table.charset2upper = p_nls->charset2upper;
72950- table.charset2lower = p_nls->charset2lower;
72951+ pax_open_kernel();
72952+ *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
72953+ *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
72954+ pax_close_kernel();
72955 return register_nls(&table);
72956 }
72957
72958diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
72959index cf27550..6c70f29d 100644
72960--- a/fs/notify/fanotify/fanotify_user.c
72961+++ b/fs/notify/fanotify/fanotify_user.c
72962@@ -216,8 +216,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
72963
72964 fd = fanotify_event_metadata.fd;
72965 ret = -EFAULT;
72966- if (copy_to_user(buf, &fanotify_event_metadata,
72967- fanotify_event_metadata.event_len))
72968+ if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
72969+ copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
72970 goto out_close_fd;
72971
72972 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
72973diff --git a/fs/notify/notification.c b/fs/notify/notification.c
72974index a95d8e0..a91a5fd 100644
72975--- a/fs/notify/notification.c
72976+++ b/fs/notify/notification.c
72977@@ -48,7 +48,7 @@
72978 #include <linux/fsnotify_backend.h>
72979 #include "fsnotify.h"
72980
72981-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
72982+static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
72983
72984 /**
72985 * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
72986@@ -56,7 +56,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
72987 */
72988 u32 fsnotify_get_cookie(void)
72989 {
72990- return atomic_inc_return(&fsnotify_sync_cookie);
72991+ return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
72992 }
72993 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
72994
72995diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
72996index 9e38daf..5727cae 100644
72997--- a/fs/ntfs/dir.c
72998+++ b/fs/ntfs/dir.c
72999@@ -1310,7 +1310,7 @@ find_next_index_buffer:
73000 ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
73001 ~(s64)(ndir->itype.index.block_size - 1)));
73002 /* Bounds checks. */
73003- if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
73004+ if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
73005 ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
73006 "inode 0x%lx or driver bug.", vdir->i_ino);
73007 goto err_out;
73008diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
73009index 1da9b2d..9cca092a 100644
73010--- a/fs/ntfs/file.c
73011+++ b/fs/ntfs/file.c
73012@@ -1281,7 +1281,7 @@ static inline size_t ntfs_copy_from_user(struct page **pages,
73013 char *addr;
73014 size_t total = 0;
73015 unsigned len;
73016- int left;
73017+ unsigned left;
73018
73019 do {
73020 len = PAGE_CACHE_SIZE - ofs;
73021diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
73022index 9e1e112..241a52a 100644
73023--- a/fs/ntfs/super.c
73024+++ b/fs/ntfs/super.c
73025@@ -688,7 +688,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73026 if (!silent)
73027 ntfs_error(sb, "Primary boot sector is invalid.");
73028 } else if (!silent)
73029- ntfs_error(sb, read_err_str, "primary");
73030+ ntfs_error(sb, read_err_str, "%s", "primary");
73031 if (!(NTFS_SB(sb)->on_errors & ON_ERRORS_RECOVER)) {
73032 if (bh_primary)
73033 brelse(bh_primary);
73034@@ -704,7 +704,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73035 goto hotfix_primary_boot_sector;
73036 brelse(bh_backup);
73037 } else if (!silent)
73038- ntfs_error(sb, read_err_str, "backup");
73039+ ntfs_error(sb, read_err_str, "%s", "backup");
73040 /* Try to read NT3.51- backup boot sector. */
73041 if ((bh_backup = sb_bread(sb, nr_blocks >> 1))) {
73042 if (is_boot_sector_ntfs(sb, (NTFS_BOOT_SECTOR*)
73043@@ -715,7 +715,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73044 "sector.");
73045 brelse(bh_backup);
73046 } else if (!silent)
73047- ntfs_error(sb, read_err_str, "backup");
73048+ ntfs_error(sb, read_err_str, "%s", "backup");
73049 /* We failed. Cleanup and return. */
73050 if (bh_primary)
73051 brelse(bh_primary);
73052diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
73053index 0440134..d52c93a 100644
73054--- a/fs/ocfs2/localalloc.c
73055+++ b/fs/ocfs2/localalloc.c
73056@@ -1320,7 +1320,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
73057 goto bail;
73058 }
73059
73060- atomic_inc(&osb->alloc_stats.moves);
73061+ atomic_inc_unchecked(&osb->alloc_stats.moves);
73062
73063 bail:
73064 if (handle)
73065diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
73066index 460c6c3..b4ef513 100644
73067--- a/fs/ocfs2/ocfs2.h
73068+++ b/fs/ocfs2/ocfs2.h
73069@@ -247,11 +247,11 @@ enum ocfs2_vol_state
73070
73071 struct ocfs2_alloc_stats
73072 {
73073- atomic_t moves;
73074- atomic_t local_data;
73075- atomic_t bitmap_data;
73076- atomic_t bg_allocs;
73077- atomic_t bg_extends;
73078+ atomic_unchecked_t moves;
73079+ atomic_unchecked_t local_data;
73080+ atomic_unchecked_t bitmap_data;
73081+ atomic_unchecked_t bg_allocs;
73082+ atomic_unchecked_t bg_extends;
73083 };
73084
73085 enum ocfs2_local_alloc_state
73086diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
73087index ee541f9..df3a500 100644
73088--- a/fs/ocfs2/refcounttree.c
73089+++ b/fs/ocfs2/refcounttree.c
73090@@ -4276,7 +4276,7 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
73091 error = posix_acl_create(dir, &mode, &default_acl, &acl);
73092 if (error) {
73093 mlog_errno(error);
73094- goto out;
73095+ return error;
73096 }
73097
73098 error = ocfs2_create_inode_in_orphan(dir, mode,
73099diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
73100index 0cb889a..6a26b24 100644
73101--- a/fs/ocfs2/suballoc.c
73102+++ b/fs/ocfs2/suballoc.c
73103@@ -867,7 +867,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
73104 mlog_errno(status);
73105 goto bail;
73106 }
73107- atomic_inc(&osb->alloc_stats.bg_extends);
73108+ atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
73109
73110 /* You should never ask for this much metadata */
73111 BUG_ON(bits_wanted >
73112@@ -2014,7 +2014,7 @@ int ocfs2_claim_metadata(handle_t *handle,
73113 mlog_errno(status);
73114 goto bail;
73115 }
73116- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73117+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73118
73119 *suballoc_loc = res.sr_bg_blkno;
73120 *suballoc_bit_start = res.sr_bit_offset;
73121@@ -2180,7 +2180,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
73122 trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
73123 res->sr_bits);
73124
73125- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73126+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73127
73128 BUG_ON(res->sr_bits != 1);
73129
73130@@ -2222,7 +2222,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
73131 mlog_errno(status);
73132 goto bail;
73133 }
73134- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73135+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73136
73137 BUG_ON(res.sr_bits != 1);
73138
73139@@ -2326,7 +2326,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
73140 cluster_start,
73141 num_clusters);
73142 if (!status)
73143- atomic_inc(&osb->alloc_stats.local_data);
73144+ atomic_inc_unchecked(&osb->alloc_stats.local_data);
73145 } else {
73146 if (min_clusters > (osb->bitmap_cpg - 1)) {
73147 /* The only paths asking for contiguousness
73148@@ -2352,7 +2352,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
73149 ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
73150 res.sr_bg_blkno,
73151 res.sr_bit_offset);
73152- atomic_inc(&osb->alloc_stats.bitmap_data);
73153+ atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
73154 *num_clusters = res.sr_bits;
73155 }
73156 }
73157diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
73158index 2667518..24bcf79 100644
73159--- a/fs/ocfs2/super.c
73160+++ b/fs/ocfs2/super.c
73161@@ -308,11 +308,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
73162 "%10s => GlobalAllocs: %d LocalAllocs: %d "
73163 "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n",
73164 "Stats",
73165- atomic_read(&osb->alloc_stats.bitmap_data),
73166- atomic_read(&osb->alloc_stats.local_data),
73167- atomic_read(&osb->alloc_stats.bg_allocs),
73168- atomic_read(&osb->alloc_stats.moves),
73169- atomic_read(&osb->alloc_stats.bg_extends));
73170+ atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
73171+ atomic_read_unchecked(&osb->alloc_stats.local_data),
73172+ atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
73173+ atomic_read_unchecked(&osb->alloc_stats.moves),
73174+ atomic_read_unchecked(&osb->alloc_stats.bg_extends));
73175
73176 out += snprintf(buf + out, len - out,
73177 "%10s => State: %u Descriptor: %llu Size: %u bits "
73178@@ -2093,11 +2093,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
73179
73180 mutex_init(&osb->system_file_mutex);
73181
73182- atomic_set(&osb->alloc_stats.moves, 0);
73183- atomic_set(&osb->alloc_stats.local_data, 0);
73184- atomic_set(&osb->alloc_stats.bitmap_data, 0);
73185- atomic_set(&osb->alloc_stats.bg_allocs, 0);
73186- atomic_set(&osb->alloc_stats.bg_extends, 0);
73187+ atomic_set_unchecked(&osb->alloc_stats.moves, 0);
73188+ atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
73189+ atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
73190+ atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
73191+ atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
73192
73193 /* Copy the blockcheck stats from the superblock probe */
73194 osb->osb_ecc_stats = *stats;
73195diff --git a/fs/open.c b/fs/open.c
73196index 44a3be1..5e97aa1 100644
73197--- a/fs/open.c
73198+++ b/fs/open.c
73199@@ -32,6 +32,8 @@
73200 #include <linux/dnotify.h>
73201 #include <linux/compat.h>
73202
73203+#define CREATE_TRACE_POINTS
73204+#include <trace/events/fs.h>
73205 #include "internal.h"
73206
73207 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
73208@@ -103,6 +105,8 @@ long vfs_truncate(struct path *path, loff_t length)
73209 error = locks_verify_truncate(inode, NULL, length);
73210 if (!error)
73211 error = security_path_truncate(path);
73212+ if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
73213+ error = -EACCES;
73214 if (!error)
73215 error = do_truncate(path->dentry, length, 0, NULL);
73216
73217@@ -187,6 +191,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
73218 error = locks_verify_truncate(inode, f.file, length);
73219 if (!error)
73220 error = security_path_truncate(&f.file->f_path);
73221+ if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
73222+ error = -EACCES;
73223 if (!error)
73224 error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
73225 sb_end_write(inode->i_sb);
73226@@ -392,6 +398,9 @@ retry:
73227 if (__mnt_is_readonly(path.mnt))
73228 res = -EROFS;
73229
73230+ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
73231+ res = -EACCES;
73232+
73233 out_path_release:
73234 path_put(&path);
73235 if (retry_estale(res, lookup_flags)) {
73236@@ -423,6 +432,8 @@ retry:
73237 if (error)
73238 goto dput_and_out;
73239
73240+ gr_log_chdir(path.dentry, path.mnt);
73241+
73242 set_fs_pwd(current->fs, &path);
73243
73244 dput_and_out:
73245@@ -452,6 +463,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
73246 goto out_putf;
73247
73248 error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
73249+
73250+ if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
73251+ error = -EPERM;
73252+
73253+ if (!error)
73254+ gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
73255+
73256 if (!error)
73257 set_fs_pwd(current->fs, &f.file->f_path);
73258 out_putf:
73259@@ -481,7 +499,13 @@ retry:
73260 if (error)
73261 goto dput_and_out;
73262
73263+ if (gr_handle_chroot_chroot(path.dentry, path.mnt))
73264+ goto dput_and_out;
73265+
73266 set_fs_root(current->fs, &path);
73267+
73268+ gr_handle_chroot_chdir(&path);
73269+
73270 error = 0;
73271 dput_and_out:
73272 path_put(&path);
73273@@ -505,6 +529,16 @@ static int chmod_common(struct path *path, umode_t mode)
73274 return error;
73275 retry_deleg:
73276 mutex_lock(&inode->i_mutex);
73277+
73278+ if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
73279+ error = -EACCES;
73280+ goto out_unlock;
73281+ }
73282+ if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
73283+ error = -EACCES;
73284+ goto out_unlock;
73285+ }
73286+
73287 error = security_path_chmod(path, mode);
73288 if (error)
73289 goto out_unlock;
73290@@ -570,6 +604,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
73291 uid = make_kuid(current_user_ns(), user);
73292 gid = make_kgid(current_user_ns(), group);
73293
73294+ if (!gr_acl_handle_chown(path->dentry, path->mnt))
73295+ return -EACCES;
73296+
73297 retry_deleg:
73298 newattrs.ia_valid = ATTR_CTIME;
73299 if (user != (uid_t) -1) {
73300@@ -1017,6 +1054,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
73301 } else {
73302 fsnotify_open(f);
73303 fd_install(fd, f);
73304+ trace_do_sys_open(tmp->name, flags, mode);
73305 }
73306 }
73307 putname(tmp);
73308diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
73309index 5f0d199..13b74b9 100644
73310--- a/fs/overlayfs/super.c
73311+++ b/fs/overlayfs/super.c
73312@@ -172,7 +172,7 @@ void ovl_path_lower(struct dentry *dentry, struct path *path)
73313 {
73314 struct ovl_entry *oe = dentry->d_fsdata;
73315
73316- *path = oe->numlower ? oe->lowerstack[0] : (struct path) { NULL, NULL };
73317+ *path = oe->numlower ? oe->lowerstack[0] : (struct path) { .dentry = NULL, .mnt = NULL };
73318 }
73319
73320 int ovl_want_write(struct dentry *dentry)
73321@@ -816,8 +816,8 @@ static unsigned int ovl_split_lowerdirs(char *str)
73322
73323 static int ovl_fill_super(struct super_block *sb, void *data, int silent)
73324 {
73325- struct path upperpath = { NULL, NULL };
73326- struct path workpath = { NULL, NULL };
73327+ struct path upperpath = { .dentry = NULL, .mnt = NULL };
73328+ struct path workpath = { .dentry = NULL, .mnt = NULL };
73329 struct dentry *root_dentry;
73330 struct ovl_entry *oe;
73331 struct ovl_fs *ufs;
73332diff --git a/fs/pipe.c b/fs/pipe.c
73333index 21981e5..2c0bffb 100644
73334--- a/fs/pipe.c
73335+++ b/fs/pipe.c
73336@@ -37,7 +37,7 @@ unsigned int pipe_max_size = 1048576;
73337 /*
73338 * Minimum pipe size, as required by POSIX
73339 */
73340-unsigned int pipe_min_size = PAGE_SIZE;
73341+unsigned int pipe_min_size __read_only = PAGE_SIZE;
73342
73343 /*
73344 * We use a start+len construction, which provides full use of the
73345@@ -56,7 +56,7 @@ unsigned int pipe_min_size = PAGE_SIZE;
73346
73347 static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
73348 {
73349- if (pipe->files)
73350+ if (atomic_read(&pipe->files))
73351 mutex_lock_nested(&pipe->mutex, subclass);
73352 }
73353
73354@@ -71,7 +71,7 @@ EXPORT_SYMBOL(pipe_lock);
73355
73356 void pipe_unlock(struct pipe_inode_info *pipe)
73357 {
73358- if (pipe->files)
73359+ if (atomic_read(&pipe->files))
73360 mutex_unlock(&pipe->mutex);
73361 }
73362 EXPORT_SYMBOL(pipe_unlock);
73363@@ -292,9 +292,9 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
73364 }
73365 if (bufs) /* More to do? */
73366 continue;
73367- if (!pipe->writers)
73368+ if (!atomic_read(&pipe->writers))
73369 break;
73370- if (!pipe->waiting_writers) {
73371+ if (!atomic_read(&pipe->waiting_writers)) {
73372 /* syscall merging: Usually we must not sleep
73373 * if O_NONBLOCK is set, or if we got some data.
73374 * But if a writer sleeps in kernel space, then
73375@@ -351,7 +351,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73376
73377 __pipe_lock(pipe);
73378
73379- if (!pipe->readers) {
73380+ if (!atomic_read(&pipe->readers)) {
73381 send_sig(SIGPIPE, current, 0);
73382 ret = -EPIPE;
73383 goto out;
73384@@ -387,7 +387,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73385 for (;;) {
73386 int bufs;
73387
73388- if (!pipe->readers) {
73389+ if (!atomic_read(&pipe->readers)) {
73390 send_sig(SIGPIPE, current, 0);
73391 if (!ret)
73392 ret = -EPIPE;
73393@@ -455,9 +455,9 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73394 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
73395 do_wakeup = 0;
73396 }
73397- pipe->waiting_writers++;
73398+ atomic_inc(&pipe->waiting_writers);
73399 pipe_wait(pipe);
73400- pipe->waiting_writers--;
73401+ atomic_dec(&pipe->waiting_writers);
73402 }
73403 out:
73404 __pipe_unlock(pipe);
73405@@ -512,7 +512,7 @@ pipe_poll(struct file *filp, poll_table *wait)
73406 mask = 0;
73407 if (filp->f_mode & FMODE_READ) {
73408 mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
73409- if (!pipe->writers && filp->f_version != pipe->w_counter)
73410+ if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
73411 mask |= POLLHUP;
73412 }
73413
73414@@ -522,7 +522,7 @@ pipe_poll(struct file *filp, poll_table *wait)
73415 * Most Unices do not set POLLERR for FIFOs but on Linux they
73416 * behave exactly like pipes for poll().
73417 */
73418- if (!pipe->readers)
73419+ if (!atomic_read(&pipe->readers))
73420 mask |= POLLERR;
73421 }
73422
73423@@ -534,7 +534,7 @@ static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
73424 int kill = 0;
73425
73426 spin_lock(&inode->i_lock);
73427- if (!--pipe->files) {
73428+ if (atomic_dec_and_test(&pipe->files)) {
73429 inode->i_pipe = NULL;
73430 kill = 1;
73431 }
73432@@ -551,11 +551,11 @@ pipe_release(struct inode *inode, struct file *file)
73433
73434 __pipe_lock(pipe);
73435 if (file->f_mode & FMODE_READ)
73436- pipe->readers--;
73437+ atomic_dec(&pipe->readers);
73438 if (file->f_mode & FMODE_WRITE)
73439- pipe->writers--;
73440+ atomic_dec(&pipe->writers);
73441
73442- if (pipe->readers || pipe->writers) {
73443+ if (atomic_read(&pipe->readers) || atomic_read(&pipe->writers)) {
73444 wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
73445 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
73446 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
73447@@ -620,7 +620,7 @@ void free_pipe_info(struct pipe_inode_info *pipe)
73448 kfree(pipe);
73449 }
73450
73451-static struct vfsmount *pipe_mnt __read_mostly;
73452+struct vfsmount *pipe_mnt __read_mostly;
73453
73454 /*
73455 * pipefs_dname() is called from d_path().
73456@@ -650,8 +650,9 @@ static struct inode * get_pipe_inode(void)
73457 goto fail_iput;
73458
73459 inode->i_pipe = pipe;
73460- pipe->files = 2;
73461- pipe->readers = pipe->writers = 1;
73462+ atomic_set(&pipe->files, 2);
73463+ atomic_set(&pipe->readers, 1);
73464+ atomic_set(&pipe->writers, 1);
73465 inode->i_fop = &pipefifo_fops;
73466
73467 /*
73468@@ -830,17 +831,17 @@ static int fifo_open(struct inode *inode, struct file *filp)
73469 spin_lock(&inode->i_lock);
73470 if (inode->i_pipe) {
73471 pipe = inode->i_pipe;
73472- pipe->files++;
73473+ atomic_inc(&pipe->files);
73474 spin_unlock(&inode->i_lock);
73475 } else {
73476 spin_unlock(&inode->i_lock);
73477 pipe = alloc_pipe_info();
73478 if (!pipe)
73479 return -ENOMEM;
73480- pipe->files = 1;
73481+ atomic_set(&pipe->files, 1);
73482 spin_lock(&inode->i_lock);
73483 if (unlikely(inode->i_pipe)) {
73484- inode->i_pipe->files++;
73485+ atomic_inc(&inode->i_pipe->files);
73486 spin_unlock(&inode->i_lock);
73487 free_pipe_info(pipe);
73488 pipe = inode->i_pipe;
73489@@ -865,10 +866,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
73490 * opened, even when there is no process writing the FIFO.
73491 */
73492 pipe->r_counter++;
73493- if (pipe->readers++ == 0)
73494+ if (atomic_inc_return(&pipe->readers) == 1)
73495 wake_up_partner(pipe);
73496
73497- if (!is_pipe && !pipe->writers) {
73498+ if (!is_pipe && !atomic_read(&pipe->writers)) {
73499 if ((filp->f_flags & O_NONBLOCK)) {
73500 /* suppress POLLHUP until we have
73501 * seen a writer */
73502@@ -887,14 +888,14 @@ static int fifo_open(struct inode *inode, struct file *filp)
73503 * errno=ENXIO when there is no process reading the FIFO.
73504 */
73505 ret = -ENXIO;
73506- if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers)
73507+ if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
73508 goto err;
73509
73510 pipe->w_counter++;
73511- if (!pipe->writers++)
73512+ if (atomic_inc_return(&pipe->writers) == 1)
73513 wake_up_partner(pipe);
73514
73515- if (!is_pipe && !pipe->readers) {
73516+ if (!is_pipe && !atomic_read(&pipe->readers)) {
73517 if (wait_for_partner(pipe, &pipe->r_counter))
73518 goto err_wr;
73519 }
73520@@ -908,11 +909,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
73521 * the process can at least talk to itself.
73522 */
73523
73524- pipe->readers++;
73525- pipe->writers++;
73526+ atomic_inc(&pipe->readers);
73527+ atomic_inc(&pipe->writers);
73528 pipe->r_counter++;
73529 pipe->w_counter++;
73530- if (pipe->readers == 1 || pipe->writers == 1)
73531+ if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
73532 wake_up_partner(pipe);
73533 break;
73534
73535@@ -926,13 +927,13 @@ static int fifo_open(struct inode *inode, struct file *filp)
73536 return 0;
73537
73538 err_rd:
73539- if (!--pipe->readers)
73540+ if (atomic_dec_and_test(&pipe->readers))
73541 wake_up_interruptible(&pipe->wait);
73542 ret = -ERESTARTSYS;
73543 goto err;
73544
73545 err_wr:
73546- if (!--pipe->writers)
73547+ if (atomic_dec_and_test(&pipe->writers))
73548 wake_up_interruptible(&pipe->wait);
73549 ret = -ERESTARTSYS;
73550 goto err;
73551@@ -1010,7 +1011,7 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long nr_pages)
73552 * Currently we rely on the pipe array holding a power-of-2 number
73553 * of pages.
73554 */
73555-static inline unsigned int round_pipe_size(unsigned int size)
73556+static inline unsigned long round_pipe_size(unsigned long size)
73557 {
73558 unsigned long nr_pages;
73559
73560@@ -1058,13 +1059,16 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
73561
73562 switch (cmd) {
73563 case F_SETPIPE_SZ: {
73564- unsigned int size, nr_pages;
73565+ unsigned long size, nr_pages;
73566+
73567+ ret = -EINVAL;
73568+ if (arg < pipe_min_size)
73569+ goto out;
73570
73571 size = round_pipe_size(arg);
73572 nr_pages = size >> PAGE_SHIFT;
73573
73574- ret = -EINVAL;
73575- if (!nr_pages)
73576+ if (size < pipe_min_size)
73577 goto out;
73578
73579 if (!capable(CAP_SYS_RESOURCE) && size > pipe_max_size) {
73580diff --git a/fs/posix_acl.c b/fs/posix_acl.c
73581index 3a48bb7..403067b 100644
73582--- a/fs/posix_acl.c
73583+++ b/fs/posix_acl.c
73584@@ -20,6 +20,7 @@
73585 #include <linux/xattr.h>
73586 #include <linux/export.h>
73587 #include <linux/user_namespace.h>
73588+#include <linux/grsecurity.h>
73589
73590 struct posix_acl **acl_by_type(struct inode *inode, int type)
73591 {
73592@@ -277,7 +278,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
73593 }
73594 }
73595 if (mode_p)
73596- *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
73597+ *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
73598 return not_equiv;
73599 }
73600 EXPORT_SYMBOL(posix_acl_equiv_mode);
73601@@ -427,7 +428,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
73602 mode &= (group_obj->e_perm << 3) | ~S_IRWXG;
73603 }
73604
73605- *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
73606+ *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
73607 return not_equiv;
73608 }
73609
73610@@ -485,6 +486,8 @@ __posix_acl_create(struct posix_acl **acl, gfp_t gfp, umode_t *mode_p)
73611 struct posix_acl *clone = posix_acl_clone(*acl, gfp);
73612 int err = -ENOMEM;
73613 if (clone) {
73614+ *mode_p &= ~gr_acl_umask();
73615+
73616 err = posix_acl_create_masq(clone, mode_p);
73617 if (err < 0) {
73618 posix_acl_release(clone);
73619@@ -663,11 +666,12 @@ struct posix_acl *
73620 posix_acl_from_xattr(struct user_namespace *user_ns,
73621 const void *value, size_t size)
73622 {
73623- posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
73624- posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
73625+ const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
73626+ const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
73627 int count;
73628 struct posix_acl *acl;
73629 struct posix_acl_entry *acl_e;
73630+ umode_t umask = gr_acl_umask();
73631
73632 if (!value)
73633 return NULL;
73634@@ -693,12 +697,18 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
73635
73636 switch(acl_e->e_tag) {
73637 case ACL_USER_OBJ:
73638+ acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
73639+ break;
73640 case ACL_GROUP_OBJ:
73641 case ACL_MASK:
73642+ acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
73643+ break;
73644 case ACL_OTHER:
73645+ acl_e->e_perm &= ~(umask & S_IRWXO);
73646 break;
73647
73648 case ACL_USER:
73649+ acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
73650 acl_e->e_uid =
73651 make_kuid(user_ns,
73652 le32_to_cpu(entry->e_id));
73653@@ -706,6 +716,7 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
73654 goto fail;
73655 break;
73656 case ACL_GROUP:
73657+ acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
73658 acl_e->e_gid =
73659 make_kgid(user_ns,
73660 le32_to_cpu(entry->e_id));
73661diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
73662index 2183fcf..3c32a98 100644
73663--- a/fs/proc/Kconfig
73664+++ b/fs/proc/Kconfig
73665@@ -30,7 +30,7 @@ config PROC_FS
73666
73667 config PROC_KCORE
73668 bool "/proc/kcore support" if !ARM
73669- depends on PROC_FS && MMU
73670+ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
73671 help
73672 Provides a virtual ELF core file of the live kernel. This can
73673 be read with gdb and other ELF tools. No modifications can be
73674@@ -38,8 +38,8 @@ config PROC_KCORE
73675
73676 config PROC_VMCORE
73677 bool "/proc/vmcore support"
73678- depends on PROC_FS && CRASH_DUMP
73679- default y
73680+ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
73681+ default n
73682 help
73683 Exports the dump image of crashed kernel in ELF format.
73684
73685@@ -63,8 +63,8 @@ config PROC_SYSCTL
73686 limited in memory.
73687
73688 config PROC_PAGE_MONITOR
73689- default y
73690- depends on PROC_FS && MMU
73691+ default n
73692+ depends on PROC_FS && MMU && !GRKERNSEC
73693 bool "Enable /proc page monitoring" if EXPERT
73694 help
73695 Various /proc files exist to monitor process memory utilization:
73696diff --git a/fs/proc/array.c b/fs/proc/array.c
73697index 1295a00..4c91a6b 100644
73698--- a/fs/proc/array.c
73699+++ b/fs/proc/array.c
73700@@ -60,6 +60,7 @@
73701 #include <linux/tty.h>
73702 #include <linux/string.h>
73703 #include <linux/mman.h>
73704+#include <linux/grsecurity.h>
73705 #include <linux/proc_fs.h>
73706 #include <linux/ioport.h>
73707 #include <linux/uaccess.h>
73708@@ -322,6 +323,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
73709 cpumask_pr_args(&task->cpus_allowed));
73710 }
73711
73712+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
73713+static inline void task_pax(struct seq_file *m, struct task_struct *p)
73714+{
73715+ if (p->mm)
73716+ seq_printf(m, "PaX:\t%c%c%c%c%c\n",
73717+ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
73718+ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
73719+ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
73720+ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
73721+ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
73722+ else
73723+ seq_printf(m, "PaX:\t-----\n");
73724+}
73725+#endif
73726+
73727 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
73728 struct pid *pid, struct task_struct *task)
73729 {
73730@@ -340,9 +356,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
73731 task_cpus_allowed(m, task);
73732 cpuset_task_status_allowed(m, task);
73733 task_context_switch_counts(m, task);
73734+
73735+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
73736+ task_pax(m, task);
73737+#endif
73738+
73739+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
73740+ task_grsec_rbac(m, task);
73741+#endif
73742+
73743 return 0;
73744 }
73745
73746+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73747+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
73748+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
73749+ _mm->pax_flags & MF_PAX_SEGMEXEC))
73750+#endif
73751+
73752 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73753 struct pid *pid, struct task_struct *task, int whole)
73754 {
73755@@ -364,6 +395,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73756 char tcomm[sizeof(task->comm)];
73757 unsigned long flags;
73758
73759+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73760+ if (current->exec_id != m->exec_id) {
73761+ gr_log_badprocpid("stat");
73762+ return 0;
73763+ }
73764+#endif
73765+
73766 state = *get_task_state(task);
73767 vsize = eip = esp = 0;
73768 permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
73769@@ -434,6 +472,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73770 gtime = task_gtime(task);
73771 }
73772
73773+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73774+ if (PAX_RAND_FLAGS(mm)) {
73775+ eip = 0;
73776+ esp = 0;
73777+ wchan = 0;
73778+ }
73779+#endif
73780+#ifdef CONFIG_GRKERNSEC_HIDESYM
73781+ wchan = 0;
73782+ eip =0;
73783+ esp =0;
73784+#endif
73785+
73786 /* scale priority and nice values from timeslices to -20..20 */
73787 /* to make it look like a "normal" Unix priority/nice value */
73788 priority = task_prio(task);
73789@@ -465,9 +516,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73790 seq_put_decimal_ull(m, ' ', vsize);
73791 seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
73792 seq_put_decimal_ull(m, ' ', rsslim);
73793+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73794+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
73795+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
73796+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
73797+#else
73798 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
73799 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
73800 seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
73801+#endif
73802 seq_put_decimal_ull(m, ' ', esp);
73803 seq_put_decimal_ull(m, ' ', eip);
73804 /* The signal information here is obsolete.
73805@@ -489,7 +546,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73806 seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
73807 seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
73808
73809- if (mm && permitted) {
73810+ if (mm && permitted
73811+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73812+ && !PAX_RAND_FLAGS(mm)
73813+#endif
73814+ ) {
73815 seq_put_decimal_ull(m, ' ', mm->start_data);
73816 seq_put_decimal_ull(m, ' ', mm->end_data);
73817 seq_put_decimal_ull(m, ' ', mm->start_brk);
73818@@ -527,8 +588,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
73819 struct pid *pid, struct task_struct *task)
73820 {
73821 unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
73822- struct mm_struct *mm = get_task_mm(task);
73823+ struct mm_struct *mm;
73824
73825+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73826+ if (current->exec_id != m->exec_id) {
73827+ gr_log_badprocpid("statm");
73828+ return 0;
73829+ }
73830+#endif
73831+ mm = get_task_mm(task);
73832 if (mm) {
73833 size = task_statm(mm, &shared, &text, &data, &resident);
73834 mmput(mm);
73835@@ -551,6 +619,20 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
73836 return 0;
73837 }
73838
73839+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
73840+int proc_pid_ipaddr(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task)
73841+{
73842+ unsigned long flags;
73843+ u32 curr_ip = 0;
73844+
73845+ if (lock_task_sighand(task, &flags)) {
73846+ curr_ip = task->signal->curr_ip;
73847+ unlock_task_sighand(task, &flags);
73848+ }
73849+ return seq_printf(m, "%pI4\n", &curr_ip);
73850+}
73851+#endif
73852+
73853 #ifdef CONFIG_CHECKPOINT_RESTORE
73854 static struct pid *
73855 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
73856diff --git a/fs/proc/base.c b/fs/proc/base.c
73857index 3f3d7ae..68de109 100644
73858--- a/fs/proc/base.c
73859+++ b/fs/proc/base.c
73860@@ -113,6 +113,14 @@ struct pid_entry {
73861 union proc_op op;
73862 };
73863
73864+struct getdents_callback {
73865+ struct linux_dirent __user * current_dir;
73866+ struct linux_dirent __user * previous;
73867+ struct file * file;
73868+ int count;
73869+ int error;
73870+};
73871+
73872 #define NOD(NAME, MODE, IOP, FOP, OP) { \
73873 .name = (NAME), \
73874 .len = sizeof(NAME) - 1, \
73875@@ -208,12 +216,28 @@ static int proc_pid_cmdline(struct seq_file *m, struct pid_namespace *ns,
73876 return 0;
73877 }
73878
73879+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73880+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
73881+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
73882+ _mm->pax_flags & MF_PAX_SEGMEXEC))
73883+#endif
73884+
73885 static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
73886 struct pid *pid, struct task_struct *task)
73887 {
73888 struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
73889 if (mm && !IS_ERR(mm)) {
73890 unsigned int nwords = 0;
73891+
73892+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73893+ /* allow if we're currently ptracing this task */
73894+ if (PAX_RAND_FLAGS(mm) &&
73895+ (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
73896+ mmput(mm);
73897+ return 0;
73898+ }
73899+#endif
73900+
73901 do {
73902 nwords += 2;
73903 } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
73904@@ -225,7 +249,7 @@ static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
73905 }
73906
73907
73908-#ifdef CONFIG_KALLSYMS
73909+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
73910 /*
73911 * Provides a wchan file via kallsyms in a proper one-value-per-file format.
73912 * Returns the resolved symbol. If that fails, simply return the address.
73913@@ -265,7 +289,7 @@ static void unlock_trace(struct task_struct *task)
73914 mutex_unlock(&task->signal->cred_guard_mutex);
73915 }
73916
73917-#ifdef CONFIG_STACKTRACE
73918+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
73919
73920 #define MAX_STACK_TRACE_DEPTH 64
73921
73922@@ -456,7 +480,7 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
73923 return 0;
73924 }
73925
73926-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
73927+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
73928 static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
73929 struct pid *pid, struct task_struct *task)
73930 {
73931@@ -486,7 +510,7 @@ static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
73932 /************************************************************************/
73933
73934 /* permission checks */
73935-static int proc_fd_access_allowed(struct inode *inode)
73936+static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
73937 {
73938 struct task_struct *task;
73939 int allowed = 0;
73940@@ -496,7 +520,10 @@ static int proc_fd_access_allowed(struct inode *inode)
73941 */
73942 task = get_proc_task(inode);
73943 if (task) {
73944- allowed = ptrace_may_access(task, PTRACE_MODE_READ);
73945+ if (log)
73946+ allowed = ptrace_may_access(task, PTRACE_MODE_READ);
73947+ else
73948+ allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
73949 put_task_struct(task);
73950 }
73951 return allowed;
73952@@ -527,10 +554,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
73953 struct task_struct *task,
73954 int hide_pid_min)
73955 {
73956+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
73957+ return false;
73958+
73959+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
73960+ rcu_read_lock();
73961+ {
73962+ const struct cred *tmpcred = current_cred();
73963+ const struct cred *cred = __task_cred(task);
73964+
73965+ if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
73966+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
73967+ || in_group_p(grsec_proc_gid)
73968+#endif
73969+ ) {
73970+ rcu_read_unlock();
73971+ return true;
73972+ }
73973+ }
73974+ rcu_read_unlock();
73975+
73976+ if (!pid->hide_pid)
73977+ return false;
73978+#endif
73979+
73980 if (pid->hide_pid < hide_pid_min)
73981 return true;
73982 if (in_group_p(pid->pid_gid))
73983 return true;
73984+
73985 return ptrace_may_access(task, PTRACE_MODE_READ);
73986 }
73987
73988@@ -548,7 +600,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
73989 put_task_struct(task);
73990
73991 if (!has_perms) {
73992+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
73993+ {
73994+#else
73995 if (pid->hide_pid == 2) {
73996+#endif
73997 /*
73998 * Let's make getdents(), stat(), and open()
73999 * consistent with each other. If a process
74000@@ -609,6 +665,10 @@ struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode)
74001
74002 if (task) {
74003 mm = mm_access(task, mode);
74004+ if (!IS_ERR_OR_NULL(mm) && gr_acl_handle_procpidmem(task)) {
74005+ mmput(mm);
74006+ mm = ERR_PTR(-EPERM);
74007+ }
74008 put_task_struct(task);
74009
74010 if (!IS_ERR_OR_NULL(mm)) {
74011@@ -630,6 +690,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
74012 return PTR_ERR(mm);
74013
74014 file->private_data = mm;
74015+
74016+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74017+ file->f_version = current->exec_id;
74018+#endif
74019+
74020 return 0;
74021 }
74022
74023@@ -651,6 +716,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
74024 ssize_t copied;
74025 char *page;
74026
74027+#ifdef CONFIG_GRKERNSEC
74028+ if (write)
74029+ return -EPERM;
74030+#endif
74031+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74032+ if (file->f_version != current->exec_id) {
74033+ gr_log_badprocpid("mem");
74034+ return 0;
74035+ }
74036+#endif
74037+
74038 if (!mm)
74039 return 0;
74040
74041@@ -663,7 +739,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
74042 goto free;
74043
74044 while (count > 0) {
74045- int this_len = min_t(int, count, PAGE_SIZE);
74046+ ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
74047
74048 if (write && copy_from_user(page, buf, this_len)) {
74049 copied = -EFAULT;
74050@@ -755,6 +831,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
74051 if (!mm)
74052 return 0;
74053
74054+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74055+ if (file->f_version != current->exec_id) {
74056+ gr_log_badprocpid("environ");
74057+ return 0;
74058+ }
74059+#endif
74060+
74061 page = (char *)__get_free_page(GFP_TEMPORARY);
74062 if (!page)
74063 return -ENOMEM;
74064@@ -764,7 +847,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
74065 goto free;
74066 while (count > 0) {
74067 size_t this_len, max_len;
74068- int retval;
74069+ ssize_t retval;
74070
74071 if (src >= (mm->env_end - mm->env_start))
74072 break;
74073@@ -1378,7 +1461,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
74074 int error = -EACCES;
74075
74076 /* Are we allowed to snoop on the tasks file descriptors? */
74077- if (!proc_fd_access_allowed(inode))
74078+ if (!proc_fd_access_allowed(inode, 0))
74079 goto out;
74080
74081 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
74082@@ -1422,8 +1505,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
74083 struct path path;
74084
74085 /* Are we allowed to snoop on the tasks file descriptors? */
74086- if (!proc_fd_access_allowed(inode))
74087- goto out;
74088+ /* logging this is needed for learning on chromium to work properly,
74089+ but we don't want to flood the logs from 'ps' which does a readlink
74090+ on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
74091+ CAP_SYS_PTRACE as it's not necessary for its basic functionality
74092+ */
74093+ if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
74094+ if (!proc_fd_access_allowed(inode,0))
74095+ goto out;
74096+ } else {
74097+ if (!proc_fd_access_allowed(inode,1))
74098+ goto out;
74099+ }
74100
74101 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
74102 if (error)
74103@@ -1473,7 +1566,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
74104 rcu_read_lock();
74105 cred = __task_cred(task);
74106 inode->i_uid = cred->euid;
74107+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74108+ inode->i_gid = grsec_proc_gid;
74109+#else
74110 inode->i_gid = cred->egid;
74111+#endif
74112 rcu_read_unlock();
74113 }
74114 security_task_to_inode(task, inode);
74115@@ -1509,10 +1606,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
74116 return -ENOENT;
74117 }
74118 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
74119+#ifdef CONFIG_GRKERNSEC_PROC_USER
74120+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
74121+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74122+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
74123+#endif
74124 task_dumpable(task)) {
74125 cred = __task_cred(task);
74126 stat->uid = cred->euid;
74127+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74128+ stat->gid = grsec_proc_gid;
74129+#else
74130 stat->gid = cred->egid;
74131+#endif
74132 }
74133 }
74134 rcu_read_unlock();
74135@@ -1550,11 +1656,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
74136
74137 if (task) {
74138 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
74139+#ifdef CONFIG_GRKERNSEC_PROC_USER
74140+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
74141+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74142+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
74143+#endif
74144 task_dumpable(task)) {
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 } else {
74155 inode->i_uid = GLOBAL_ROOT_UID;
74156@@ -2085,6 +2200,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
74157 if (!task)
74158 goto out_no_task;
74159
74160+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74161+ goto out;
74162+
74163 /*
74164 * Yes, it does not scale. And it should not. Don't add
74165 * new entries into /proc/<tgid>/ without very good reasons.
74166@@ -2115,6 +2233,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
74167 if (!task)
74168 return -ENOENT;
74169
74170+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74171+ goto out;
74172+
74173 if (!dir_emit_dots(file, ctx))
74174 goto out;
74175
74176@@ -2557,7 +2678,7 @@ static const struct pid_entry tgid_base_stuff[] = {
74177 REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
74178 #endif
74179 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
74180-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
74181+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
74182 ONE("syscall", S_IRUSR, proc_pid_syscall),
74183 #endif
74184 ONE("cmdline", S_IRUGO, proc_pid_cmdline),
74185@@ -2582,10 +2703,10 @@ static const struct pid_entry tgid_base_stuff[] = {
74186 #ifdef CONFIG_SECURITY
74187 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
74188 #endif
74189-#ifdef CONFIG_KALLSYMS
74190+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74191 ONE("wchan", S_IRUGO, proc_pid_wchan),
74192 #endif
74193-#ifdef CONFIG_STACKTRACE
74194+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74195 ONE("stack", S_IRUSR, proc_pid_stack),
74196 #endif
74197 #ifdef CONFIG_SCHEDSTATS
74198@@ -2619,6 +2740,9 @@ static const struct pid_entry tgid_base_stuff[] = {
74199 #ifdef CONFIG_HARDWALL
74200 ONE("hardwall", S_IRUGO, proc_pid_hardwall),
74201 #endif
74202+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
74203+ ONE("ipaddr", S_IRUSR, proc_pid_ipaddr),
74204+#endif
74205 #ifdef CONFIG_USER_NS
74206 REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
74207 REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
74208@@ -2751,7 +2875,14 @@ static int proc_pid_instantiate(struct inode *dir,
74209 if (!inode)
74210 goto out;
74211
74212+#ifdef CONFIG_GRKERNSEC_PROC_USER
74213+ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
74214+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74215+ inode->i_gid = grsec_proc_gid;
74216+ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
74217+#else
74218 inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
74219+#endif
74220 inode->i_op = &proc_tgid_base_inode_operations;
74221 inode->i_fop = &proc_tgid_base_operations;
74222 inode->i_flags|=S_IMMUTABLE;
74223@@ -2789,7 +2920,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
74224 if (!task)
74225 goto out;
74226
74227+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74228+ goto out_put_task;
74229+
74230 result = proc_pid_instantiate(dir, dentry, task, NULL);
74231+out_put_task:
74232 put_task_struct(task);
74233 out:
74234 return ERR_PTR(result);
74235@@ -2903,7 +3038,7 @@ static const struct pid_entry tid_base_stuff[] = {
74236 REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
74237 #endif
74238 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
74239-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
74240+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
74241 ONE("syscall", S_IRUSR, proc_pid_syscall),
74242 #endif
74243 ONE("cmdline", S_IRUGO, proc_pid_cmdline),
74244@@ -2930,10 +3065,10 @@ static const struct pid_entry tid_base_stuff[] = {
74245 #ifdef CONFIG_SECURITY
74246 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
74247 #endif
74248-#ifdef CONFIG_KALLSYMS
74249+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74250 ONE("wchan", S_IRUGO, proc_pid_wchan),
74251 #endif
74252-#ifdef CONFIG_STACKTRACE
74253+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74254 ONE("stack", S_IRUSR, proc_pid_stack),
74255 #endif
74256 #ifdef CONFIG_SCHEDSTATS
74257diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
74258index cbd82df..c0407d2 100644
74259--- a/fs/proc/cmdline.c
74260+++ b/fs/proc/cmdline.c
74261@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
74262
74263 static int __init proc_cmdline_init(void)
74264 {
74265+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74266+ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
74267+#else
74268 proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
74269+#endif
74270 return 0;
74271 }
74272 fs_initcall(proc_cmdline_init);
74273diff --git a/fs/proc/devices.c b/fs/proc/devices.c
74274index 50493ed..248166b 100644
74275--- a/fs/proc/devices.c
74276+++ b/fs/proc/devices.c
74277@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
74278
74279 static int __init proc_devices_init(void)
74280 {
74281+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74282+ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
74283+#else
74284 proc_create("devices", 0, NULL, &proc_devinfo_operations);
74285+#endif
74286 return 0;
74287 }
74288 fs_initcall(proc_devices_init);
74289diff --git a/fs/proc/fd.c b/fs/proc/fd.c
74290index 8e5ad83..1f07a8c 100644
74291--- a/fs/proc/fd.c
74292+++ b/fs/proc/fd.c
74293@@ -26,7 +26,8 @@ static int seq_show(struct seq_file *m, void *v)
74294 if (!task)
74295 return -ENOENT;
74296
74297- files = get_files_struct(task);
74298+ if (!gr_acl_handle_procpidmem(task))
74299+ files = get_files_struct(task);
74300 put_task_struct(task);
74301
74302 if (files) {
74303@@ -284,11 +285,21 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
74304 */
74305 int proc_fd_permission(struct inode *inode, int mask)
74306 {
74307+ struct task_struct *task;
74308 int rv = generic_permission(inode, mask);
74309- if (rv == 0)
74310- return 0;
74311+
74312 if (task_tgid(current) == proc_pid(inode))
74313 rv = 0;
74314+
74315+ task = get_proc_task(inode);
74316+ if (task == NULL)
74317+ return rv;
74318+
74319+ if (gr_acl_handle_procpidmem(task))
74320+ rv = -EACCES;
74321+
74322+ put_task_struct(task);
74323+
74324 return rv;
74325 }
74326
74327diff --git a/fs/proc/generic.c b/fs/proc/generic.c
74328index be65b20..2998ba8 100644
74329--- a/fs/proc/generic.c
74330+++ b/fs/proc/generic.c
74331@@ -22,6 +22,7 @@
74332 #include <linux/bitops.h>
74333 #include <linux/spinlock.h>
74334 #include <linux/completion.h>
74335+#include <linux/grsecurity.h>
74336 #include <asm/uaccess.h>
74337
74338 #include "internal.h"
74339@@ -253,6 +254,15 @@ struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,
74340 return proc_lookup_de(PDE(dir), dir, dentry);
74341 }
74342
74343+struct dentry *proc_lookup_restrict(struct inode *dir, struct dentry *dentry,
74344+ unsigned int flags)
74345+{
74346+ if (gr_proc_is_restricted())
74347+ return ERR_PTR(-EACCES);
74348+
74349+ return proc_lookup_de(PDE(dir), dir, dentry);
74350+}
74351+
74352 /*
74353 * This returns non-zero if at EOF, so that the /proc
74354 * root directory can use this and check if it should
74355@@ -310,6 +320,16 @@ int proc_readdir(struct file *file, struct dir_context *ctx)
74356 return proc_readdir_de(PDE(inode), file, ctx);
74357 }
74358
74359+int proc_readdir_restrict(struct file *file, struct dir_context *ctx)
74360+{
74361+ struct inode *inode = file_inode(file);
74362+
74363+ if (gr_proc_is_restricted())
74364+ return -EACCES;
74365+
74366+ return proc_readdir_de(PDE(inode), file, ctx);
74367+}
74368+
74369 /*
74370 * These are the generic /proc directory operations. They
74371 * use the in-memory "struct proc_dir_entry" tree to parse
74372@@ -321,6 +341,12 @@ static const struct file_operations proc_dir_operations = {
74373 .iterate = proc_readdir,
74374 };
74375
74376+static const struct file_operations proc_dir_restricted_operations = {
74377+ .llseek = generic_file_llseek,
74378+ .read = generic_read_dir,
74379+ .iterate = proc_readdir_restrict,
74380+};
74381+
74382 /*
74383 * proc directories can do almost nothing..
74384 */
74385@@ -330,6 +356,12 @@ static const struct inode_operations proc_dir_inode_operations = {
74386 .setattr = proc_notify_change,
74387 };
74388
74389+static const struct inode_operations proc_dir_restricted_inode_operations = {
74390+ .lookup = proc_lookup_restrict,
74391+ .getattr = proc_getattr,
74392+ .setattr = proc_notify_change,
74393+};
74394+
74395 static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
74396 {
74397 int ret;
74398@@ -441,6 +473,31 @@ struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode,
74399 }
74400 EXPORT_SYMBOL_GPL(proc_mkdir_data);
74401
74402+struct proc_dir_entry *proc_mkdir_data_restrict(const char *name, umode_t mode,
74403+ struct proc_dir_entry *parent, void *data)
74404+{
74405+ struct proc_dir_entry *ent;
74406+
74407+ if (mode == 0)
74408+ mode = S_IRUGO | S_IXUGO;
74409+
74410+ ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
74411+ if (ent) {
74412+ ent->data = data;
74413+ ent->restricted = 1;
74414+ ent->proc_fops = &proc_dir_restricted_operations;
74415+ ent->proc_iops = &proc_dir_restricted_inode_operations;
74416+ parent->nlink++;
74417+ if (proc_register(parent, ent) < 0) {
74418+ kfree(ent);
74419+ parent->nlink--;
74420+ ent = NULL;
74421+ }
74422+ }
74423+ return ent;
74424+}
74425+EXPORT_SYMBOL_GPL(proc_mkdir_data_restrict);
74426+
74427 struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
74428 struct proc_dir_entry *parent)
74429 {
74430@@ -455,6 +512,13 @@ struct proc_dir_entry *proc_mkdir(const char *name,
74431 }
74432 EXPORT_SYMBOL(proc_mkdir);
74433
74434+struct proc_dir_entry *proc_mkdir_restrict(const char *name,
74435+ struct proc_dir_entry *parent)
74436+{
74437+ return proc_mkdir_data_restrict(name, 0, parent, NULL);
74438+}
74439+EXPORT_SYMBOL(proc_mkdir_restrict);
74440+
74441 struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
74442 struct proc_dir_entry *parent,
74443 const struct file_operations *proc_fops,
74444diff --git a/fs/proc/inode.c b/fs/proc/inode.c
74445index 7697b66..8d8e541 100644
74446--- a/fs/proc/inode.c
74447+++ b/fs/proc/inode.c
74448@@ -24,11 +24,17 @@
74449 #include <linux/mount.h>
74450 #include <linux/magic.h>
74451 #include <linux/namei.h>
74452+#include <linux/grsecurity.h>
74453
74454 #include <asm/uaccess.h>
74455
74456 #include "internal.h"
74457
74458+#ifdef CONFIG_PROC_SYSCTL
74459+extern const struct inode_operations proc_sys_inode_operations;
74460+extern const struct inode_operations proc_sys_dir_operations;
74461+#endif
74462+
74463 static void proc_evict_inode(struct inode *inode)
74464 {
74465 struct proc_dir_entry *de;
74466@@ -49,6 +55,13 @@ static void proc_evict_inode(struct inode *inode)
74467 RCU_INIT_POINTER(PROC_I(inode)->sysctl, NULL);
74468 sysctl_head_put(head);
74469 }
74470+
74471+#ifdef CONFIG_PROC_SYSCTL
74472+ if (inode->i_op == &proc_sys_inode_operations ||
74473+ inode->i_op == &proc_sys_dir_operations)
74474+ gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
74475+#endif
74476+
74477 }
74478
74479 static struct kmem_cache * proc_inode_cachep;
74480@@ -426,7 +439,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
74481 if (de->mode) {
74482 inode->i_mode = de->mode;
74483 inode->i_uid = de->uid;
74484+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74485+ inode->i_gid = grsec_proc_gid;
74486+#else
74487 inode->i_gid = de->gid;
74488+#endif
74489 }
74490 if (de->size)
74491 inode->i_size = de->size;
74492diff --git a/fs/proc/internal.h b/fs/proc/internal.h
74493index c835b94..c9e01a3 100644
74494--- a/fs/proc/internal.h
74495+++ b/fs/proc/internal.h
74496@@ -47,9 +47,10 @@ struct proc_dir_entry {
74497 struct completion *pde_unload_completion;
74498 struct list_head pde_openers; /* who did ->open, but not ->release */
74499 spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
74500+ u8 restricted; /* a directory in /proc/net that should be restricted via GRKERNSEC_PROC */
74501 u8 namelen;
74502 char name[];
74503-};
74504+} __randomize_layout;
74505
74506 union proc_op {
74507 int (*proc_get_link)(struct dentry *, struct path *);
74508@@ -67,7 +68,7 @@ struct proc_inode {
74509 struct ctl_table *sysctl_entry;
74510 const struct proc_ns_operations *ns_ops;
74511 struct inode vfs_inode;
74512-};
74513+} __randomize_layout;
74514
74515 /*
74516 * General functions
74517@@ -155,6 +156,10 @@ extern int proc_pid_status(struct seq_file *, struct pid_namespace *,
74518 struct pid *, struct task_struct *);
74519 extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
74520 struct pid *, struct task_struct *);
74521+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
74522+extern int proc_pid_ipaddr(struct seq_file *, struct pid_namespace *,
74523+ struct pid *, struct task_struct *);
74524+#endif
74525
74526 /*
74527 * base.c
74528@@ -179,9 +184,11 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
74529 * generic.c
74530 */
74531 extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
74532+extern struct dentry *proc_lookup_restrict(struct inode *, struct dentry *, unsigned int);
74533 extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
74534 struct dentry *);
74535 extern int proc_readdir(struct file *, struct dir_context *);
74536+extern int proc_readdir_restrict(struct file *, struct dir_context *);
74537 extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *);
74538
74539 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
74540diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
74541index a352d57..cb94a5c 100644
74542--- a/fs/proc/interrupts.c
74543+++ b/fs/proc/interrupts.c
74544@@ -47,7 +47,11 @@ static const struct file_operations proc_interrupts_operations = {
74545
74546 static int __init proc_interrupts_init(void)
74547 {
74548+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74549+ proc_create_grsec("interrupts", 0, NULL, &proc_interrupts_operations);
74550+#else
74551 proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
74552+#endif
74553 return 0;
74554 }
74555 fs_initcall(proc_interrupts_init);
74556diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
74557index 91a4e64..14bf8fa 100644
74558--- a/fs/proc/kcore.c
74559+++ b/fs/proc/kcore.c
74560@@ -483,9 +483,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74561 * the addresses in the elf_phdr on our list.
74562 */
74563 start = kc_offset_to_vaddr(*fpos - elf_buflen);
74564- if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
74565+ tsz = PAGE_SIZE - (start & ~PAGE_MASK);
74566+ if (tsz > buflen)
74567 tsz = buflen;
74568-
74569+
74570 while (buflen) {
74571 struct kcore_list *m;
74572
74573@@ -515,19 +516,20 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74574 } else {
74575 if (kern_addr_valid(start)) {
74576 unsigned long n;
74577+ char *elf_buf;
74578+ mm_segment_t oldfs;
74579
74580- n = copy_to_user(buffer, (char *)start, tsz);
74581- /*
74582- * We cannot distinguish between fault on source
74583- * and fault on destination. When this happens
74584- * we clear too and hope it will trigger the
74585- * EFAULT again.
74586- */
74587- if (n) {
74588- if (clear_user(buffer + tsz - n,
74589- n))
74590- return -EFAULT;
74591- }
74592+ elf_buf = kzalloc(tsz, GFP_KERNEL);
74593+ if (!elf_buf)
74594+ return -ENOMEM;
74595+ oldfs = get_fs();
74596+ set_fs(KERNEL_DS);
74597+ n = __copy_from_user(elf_buf, (const void __user *)start, tsz);
74598+ set_fs(oldfs);
74599+ n = copy_to_user(buffer, elf_buf, tsz);
74600+ kfree(elf_buf);
74601+ if (n)
74602+ return -EFAULT;
74603 } else {
74604 if (clear_user(buffer, tsz))
74605 return -EFAULT;
74606@@ -547,6 +549,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74607
74608 static int open_kcore(struct inode *inode, struct file *filp)
74609 {
74610+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
74611+ return -EPERM;
74612+#endif
74613 if (!capable(CAP_SYS_RAWIO))
74614 return -EPERM;
74615 if (kcore_need_update)
74616@@ -580,7 +585,7 @@ static int __meminit kcore_callback(struct notifier_block *self,
74617 return NOTIFY_OK;
74618 }
74619
74620-static struct notifier_block kcore_callback_nb __meminitdata = {
74621+static struct notifier_block kcore_callback_nb __meminitconst = {
74622 .notifier_call = kcore_callback,
74623 .priority = 0,
74624 };
74625diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
74626index d3ebf2e..6ad42d1 100644
74627--- a/fs/proc/meminfo.c
74628+++ b/fs/proc/meminfo.c
74629@@ -194,7 +194,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
74630 vmi.used >> 10,
74631 vmi.largest_chunk >> 10
74632 #ifdef CONFIG_MEMORY_FAILURE
74633- , atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
74634+ , atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
74635 #endif
74636 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
74637 , K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
74638diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
74639index d4a3574..b421ce9 100644
74640--- a/fs/proc/nommu.c
74641+++ b/fs/proc/nommu.c
74642@@ -64,7 +64,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
74643
74644 if (file) {
74645 seq_pad(m, ' ');
74646- seq_path(m, &file->f_path, "");
74647+ seq_path(m, &file->f_path, "\n\\");
74648 }
74649
74650 seq_putc(m, '\n');
74651diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
74652index 1bde894..22ac7eb 100644
74653--- a/fs/proc/proc_net.c
74654+++ b/fs/proc/proc_net.c
74655@@ -23,9 +23,27 @@
74656 #include <linux/nsproxy.h>
74657 #include <net/net_namespace.h>
74658 #include <linux/seq_file.h>
74659+#include <linux/grsecurity.h>
74660
74661 #include "internal.h"
74662
74663+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
74664+static struct seq_operations *ipv6_seq_ops_addr;
74665+
74666+void register_ipv6_seq_ops_addr(struct seq_operations *addr)
74667+{
74668+ ipv6_seq_ops_addr = addr;
74669+}
74670+
74671+void unregister_ipv6_seq_ops_addr(void)
74672+{
74673+ ipv6_seq_ops_addr = NULL;
74674+}
74675+
74676+EXPORT_SYMBOL_GPL(register_ipv6_seq_ops_addr);
74677+EXPORT_SYMBOL_GPL(unregister_ipv6_seq_ops_addr);
74678+#endif
74679+
74680 static inline struct net *PDE_NET(struct proc_dir_entry *pde)
74681 {
74682 return pde->parent->data;
74683@@ -36,6 +54,8 @@ static struct net *get_proc_net(const struct inode *inode)
74684 return maybe_get_net(PDE_NET(PDE(inode)));
74685 }
74686
74687+extern const struct seq_operations dev_seq_ops;
74688+
74689 int seq_open_net(struct inode *ino, struct file *f,
74690 const struct seq_operations *ops, int size)
74691 {
74692@@ -44,6 +64,14 @@ int seq_open_net(struct inode *ino, struct file *f,
74693
74694 BUG_ON(size < sizeof(*p));
74695
74696+ /* only permit access to /proc/net/dev */
74697+ if (
74698+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
74699+ ops != ipv6_seq_ops_addr &&
74700+#endif
74701+ ops != &dev_seq_ops && gr_proc_is_restricted())
74702+ return -EACCES;
74703+
74704 net = get_proc_net(ino);
74705 if (net == NULL)
74706 return -ENXIO;
74707@@ -66,6 +94,9 @@ int single_open_net(struct inode *inode, struct file *file,
74708 int err;
74709 struct net *net;
74710
74711+ if (gr_proc_is_restricted())
74712+ return -EACCES;
74713+
74714 err = -ENXIO;
74715 net = get_proc_net(inode);
74716 if (net == NULL)
74717diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
74718index f92d5dd..26398ac 100644
74719--- a/fs/proc/proc_sysctl.c
74720+++ b/fs/proc/proc_sysctl.c
74721@@ -11,13 +11,21 @@
74722 #include <linux/namei.h>
74723 #include <linux/mm.h>
74724 #include <linux/module.h>
74725+#include <linux/nsproxy.h>
74726+#ifdef CONFIG_GRKERNSEC
74727+#include <net/net_namespace.h>
74728+#endif
74729 #include "internal.h"
74730
74731+extern int gr_handle_chroot_sysctl(const int op);
74732+extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
74733+ const int op);
74734+
74735 static const struct dentry_operations proc_sys_dentry_operations;
74736 static const struct file_operations proc_sys_file_operations;
74737-static const struct inode_operations proc_sys_inode_operations;
74738+const struct inode_operations proc_sys_inode_operations;
74739 static const struct file_operations proc_sys_dir_file_operations;
74740-static const struct inode_operations proc_sys_dir_operations;
74741+const struct inode_operations proc_sys_dir_operations;
74742
74743 void proc_sys_poll_notify(struct ctl_table_poll *poll)
74744 {
74745@@ -467,6 +475,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
74746
74747 err = NULL;
74748 d_set_d_op(dentry, &proc_sys_dentry_operations);
74749+
74750+ gr_handle_proc_create(dentry, inode);
74751+
74752 d_add(dentry, inode);
74753
74754 out:
74755@@ -482,6 +493,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74756 struct inode *inode = file_inode(filp);
74757 struct ctl_table_header *head = grab_header(inode);
74758 struct ctl_table *table = PROC_I(inode)->sysctl_entry;
74759+ int op = write ? MAY_WRITE : MAY_READ;
74760 ssize_t error;
74761 size_t res;
74762
74763@@ -493,7 +505,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74764 * and won't be until we finish.
74765 */
74766 error = -EPERM;
74767- if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
74768+ if (sysctl_perm(head, table, op))
74769 goto out;
74770
74771 /* if that can happen at all, it should be -EINVAL, not -EISDIR */
74772@@ -501,6 +513,27 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74773 if (!table->proc_handler)
74774 goto out;
74775
74776+#ifdef CONFIG_GRKERNSEC
74777+ error = -EPERM;
74778+ if (gr_handle_chroot_sysctl(op))
74779+ goto out;
74780+ dget(filp->f_path.dentry);
74781+ if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
74782+ dput(filp->f_path.dentry);
74783+ goto out;
74784+ }
74785+ dput(filp->f_path.dentry);
74786+ if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
74787+ goto out;
74788+ if (write) {
74789+ if (current->nsproxy->net_ns != table->extra2) {
74790+ if (!capable(CAP_SYS_ADMIN))
74791+ goto out;
74792+ } else if (!ns_capable(current->nsproxy->net_ns->user_ns, CAP_NET_ADMIN))
74793+ goto out;
74794+ }
74795+#endif
74796+
74797 /* careful: calling conventions are nasty here */
74798 res = count;
74799 error = table->proc_handler(table, write, buf, &res, ppos);
74800@@ -598,6 +631,9 @@ static bool proc_sys_fill_cache(struct file *file,
74801 return false;
74802 } else {
74803 d_set_d_op(child, &proc_sys_dentry_operations);
74804+
74805+ gr_handle_proc_create(child, inode);
74806+
74807 d_add(child, inode);
74808 }
74809 } else {
74810@@ -641,6 +677,9 @@ static int scan(struct ctl_table_header *head, struct ctl_table *table,
74811 if ((*pos)++ < ctx->pos)
74812 return true;
74813
74814+ if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
74815+ return 0;
74816+
74817 if (unlikely(S_ISLNK(table->mode)))
74818 res = proc_sys_link_fill_cache(file, ctx, head, table);
74819 else
74820@@ -734,6 +773,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
74821 if (IS_ERR(head))
74822 return PTR_ERR(head);
74823
74824+ if (table && !gr_acl_handle_hidden_file(dentry, mnt))
74825+ return -ENOENT;
74826+
74827 generic_fillattr(inode, stat);
74828 if (table)
74829 stat->mode = (stat->mode & S_IFMT) | table->mode;
74830@@ -756,13 +798,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
74831 .llseek = generic_file_llseek,
74832 };
74833
74834-static const struct inode_operations proc_sys_inode_operations = {
74835+const struct inode_operations proc_sys_inode_operations = {
74836 .permission = proc_sys_permission,
74837 .setattr = proc_sys_setattr,
74838 .getattr = proc_sys_getattr,
74839 };
74840
74841-static const struct inode_operations proc_sys_dir_operations = {
74842+const struct inode_operations proc_sys_dir_operations = {
74843 .lookup = proc_sys_lookup,
74844 .permission = proc_sys_permission,
74845 .setattr = proc_sys_setattr,
74846@@ -839,7 +881,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
74847 static struct ctl_dir *new_dir(struct ctl_table_set *set,
74848 const char *name, int namelen)
74849 {
74850- struct ctl_table *table;
74851+ ctl_table_no_const *table;
74852 struct ctl_dir *new;
74853 struct ctl_node *node;
74854 char *new_name;
74855@@ -851,7 +893,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
74856 return NULL;
74857
74858 node = (struct ctl_node *)(new + 1);
74859- table = (struct ctl_table *)(node + 1);
74860+ table = (ctl_table_no_const *)(node + 1);
74861 new_name = (char *)(table + 2);
74862 memcpy(new_name, name, namelen);
74863 new_name[namelen] = '\0';
74864@@ -1020,7 +1062,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
74865 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
74866 struct ctl_table_root *link_root)
74867 {
74868- struct ctl_table *link_table, *entry, *link;
74869+ ctl_table_no_const *link_table, *link;
74870+ struct ctl_table *entry;
74871 struct ctl_table_header *links;
74872 struct ctl_node *node;
74873 char *link_name;
74874@@ -1043,7 +1086,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
74875 return NULL;
74876
74877 node = (struct ctl_node *)(links + 1);
74878- link_table = (struct ctl_table *)(node + nr_entries);
74879+ link_table = (ctl_table_no_const *)(node + nr_entries);
74880 link_name = (char *)&link_table[nr_entries + 1];
74881
74882 for (link = link_table, entry = table; entry->procname; link++, entry++) {
74883@@ -1291,8 +1334,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74884 struct ctl_table_header ***subheader, struct ctl_table_set *set,
74885 struct ctl_table *table)
74886 {
74887- struct ctl_table *ctl_table_arg = NULL;
74888- struct ctl_table *entry, *files;
74889+ ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
74890+ struct ctl_table *entry;
74891 int nr_files = 0;
74892 int nr_dirs = 0;
74893 int err = -ENOMEM;
74894@@ -1304,10 +1347,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74895 nr_files++;
74896 }
74897
74898- files = table;
74899 /* If there are mixed files and directories we need a new table */
74900 if (nr_dirs && nr_files) {
74901- struct ctl_table *new;
74902+ ctl_table_no_const *new;
74903 files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
74904 GFP_KERNEL);
74905 if (!files)
74906@@ -1325,7 +1367,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74907 /* Register everything except a directory full of subdirectories */
74908 if (nr_files || !nr_dirs) {
74909 struct ctl_table_header *header;
74910- header = __register_sysctl_table(set, path, files);
74911+ header = __register_sysctl_table(set, path, files ? files : table);
74912 if (!header) {
74913 kfree(ctl_table_arg);
74914 goto out;
74915diff --git a/fs/proc/root.c b/fs/proc/root.c
74916index e74ac9f..35e89f4 100644
74917--- a/fs/proc/root.c
74918+++ b/fs/proc/root.c
74919@@ -188,7 +188,15 @@ void __init proc_root_init(void)
74920 proc_mkdir("openprom", NULL);
74921 #endif
74922 proc_tty_init();
74923+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74924+#ifdef CONFIG_GRKERNSEC_PROC_USER
74925+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
74926+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74927+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
74928+#endif
74929+#else
74930 proc_mkdir("bus", NULL);
74931+#endif
74932 proc_sys_init();
74933 }
74934
74935diff --git a/fs/proc/stat.c b/fs/proc/stat.c
74936index 510413eb..34d9a8c 100644
74937--- a/fs/proc/stat.c
74938+++ b/fs/proc/stat.c
74939@@ -11,6 +11,7 @@
74940 #include <linux/irqnr.h>
74941 #include <linux/cputime.h>
74942 #include <linux/tick.h>
74943+#include <linux/grsecurity.h>
74944
74945 #ifndef arch_irq_stat_cpu
74946 #define arch_irq_stat_cpu(cpu) 0
74947@@ -87,6 +88,18 @@ static int show_stat(struct seq_file *p, void *v)
74948 u64 sum_softirq = 0;
74949 unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
74950 struct timespec boottime;
74951+ int unrestricted = 1;
74952+
74953+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74954+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74955+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
74956+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74957+ && !in_group_p(grsec_proc_gid)
74958+#endif
74959+ )
74960+ unrestricted = 0;
74961+#endif
74962+#endif
74963
74964 user = nice = system = idle = iowait =
74965 irq = softirq = steal = 0;
74966@@ -99,23 +112,25 @@ static int show_stat(struct seq_file *p, void *v)
74967 nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
74968 system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
74969 idle += get_idle_time(i);
74970- iowait += get_iowait_time(i);
74971- irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
74972- softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
74973- steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
74974- guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
74975- guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
74976- sum += kstat_cpu_irqs_sum(i);
74977- sum += arch_irq_stat_cpu(i);
74978+ if (unrestricted) {
74979+ iowait += get_iowait_time(i);
74980+ irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
74981+ softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
74982+ steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
74983+ guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
74984+ guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
74985+ sum += kstat_cpu_irqs_sum(i);
74986+ sum += arch_irq_stat_cpu(i);
74987+ for (j = 0; j < NR_SOFTIRQS; j++) {
74988+ unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
74989
74990- for (j = 0; j < NR_SOFTIRQS; j++) {
74991- unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
74992-
74993- per_softirq_sums[j] += softirq_stat;
74994- sum_softirq += softirq_stat;
74995+ per_softirq_sums[j] += softirq_stat;
74996+ sum_softirq += softirq_stat;
74997+ }
74998 }
74999 }
75000- sum += arch_irq_stat();
75001+ if (unrestricted)
75002+ sum += arch_irq_stat();
75003
75004 seq_puts(p, "cpu ");
75005 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
75006@@ -136,12 +151,14 @@ static int show_stat(struct seq_file *p, void *v)
75007 nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
75008 system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
75009 idle = get_idle_time(i);
75010- iowait = get_iowait_time(i);
75011- irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75012- softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75013- steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75014- guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75015- guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75016+ if (unrestricted) {
75017+ iowait = get_iowait_time(i);
75018+ irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75019+ softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75020+ steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75021+ guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75022+ guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75023+ }
75024 seq_printf(p, "cpu%d", i);
75025 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
75026 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
75027@@ -159,7 +176,7 @@ static int show_stat(struct seq_file *p, void *v)
75028
75029 /* sum again ? it could be updated? */
75030 for_each_irq_nr(j)
75031- seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j));
75032+ seq_put_decimal_ull(p, ' ', unrestricted ? kstat_irqs_usr(j) : 0ULL);
75033
75034 seq_printf(p,
75035 "\nctxt %llu\n"
75036@@ -167,11 +184,11 @@ static int show_stat(struct seq_file *p, void *v)
75037 "processes %lu\n"
75038 "procs_running %lu\n"
75039 "procs_blocked %lu\n",
75040- nr_context_switches(),
75041+ unrestricted ? nr_context_switches() : 0ULL,
75042 (unsigned long)jif,
75043- total_forks,
75044- nr_running(),
75045- nr_iowait());
75046+ unrestricted ? total_forks : 0UL,
75047+ unrestricted ? nr_running() : 0UL,
75048+ unrestricted ? nr_iowait() : 0UL);
75049
75050 seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
75051
75052diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
75053index 6dee68d..1b4add0 100644
75054--- a/fs/proc/task_mmu.c
75055+++ b/fs/proc/task_mmu.c
75056@@ -13,12 +13,19 @@
75057 #include <linux/swap.h>
75058 #include <linux/swapops.h>
75059 #include <linux/mmu_notifier.h>
75060+#include <linux/grsecurity.h>
75061
75062 #include <asm/elf.h>
75063 #include <asm/uaccess.h>
75064 #include <asm/tlbflush.h>
75065 #include "internal.h"
75066
75067+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75068+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
75069+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
75070+ _mm->pax_flags & MF_PAX_SEGMEXEC))
75071+#endif
75072+
75073 void task_mem(struct seq_file *m, struct mm_struct *mm)
75074 {
75075 unsigned long data, text, lib, swap, ptes, pmds;
75076@@ -57,8 +64,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75077 "VmLib:\t%8lu kB\n"
75078 "VmPTE:\t%8lu kB\n"
75079 "VmPMD:\t%8lu kB\n"
75080- "VmSwap:\t%8lu kB\n",
75081- hiwater_vm << (PAGE_SHIFT-10),
75082+ "VmSwap:\t%8lu kB\n"
75083+
75084+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
75085+ "CsBase:\t%8lx\nCsLim:\t%8lx\n"
75086+#endif
75087+
75088+ ,hiwater_vm << (PAGE_SHIFT-10),
75089 total_vm << (PAGE_SHIFT-10),
75090 mm->locked_vm << (PAGE_SHIFT-10),
75091 mm->pinned_vm << (PAGE_SHIFT-10),
75092@@ -68,7 +80,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75093 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
75094 ptes >> 10,
75095 pmds >> 10,
75096- swap << (PAGE_SHIFT-10));
75097+ swap << (PAGE_SHIFT-10)
75098+
75099+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
75100+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75101+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
75102+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
75103+#else
75104+ , mm->context.user_cs_base
75105+ , mm->context.user_cs_limit
75106+#endif
75107+#endif
75108+
75109+ );
75110 }
75111
75112 unsigned long task_vsize(struct mm_struct *mm)
75113@@ -285,13 +309,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75114 pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
75115 }
75116
75117- /* We don't show the stack guard page in /proc/maps */
75118+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75119+ start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
75120+ end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
75121+#else
75122 start = vma->vm_start;
75123- if (stack_guard_page_start(vma, start))
75124- start += PAGE_SIZE;
75125 end = vma->vm_end;
75126- if (stack_guard_page_end(vma, end))
75127- end -= PAGE_SIZE;
75128+#endif
75129
75130 seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
75131 seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
75132@@ -301,7 +325,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75133 flags & VM_WRITE ? 'w' : '-',
75134 flags & VM_EXEC ? 'x' : '-',
75135 flags & VM_MAYSHARE ? 's' : 'p',
75136+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75137+ PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
75138+#else
75139 pgoff,
75140+#endif
75141 MAJOR(dev), MINOR(dev), ino);
75142
75143 /*
75144@@ -310,7 +338,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75145 */
75146 if (file) {
75147 seq_pad(m, ' ');
75148- seq_path(m, &file->f_path, "\n");
75149+ seq_path(m, &file->f_path, "\n\\");
75150 goto done;
75151 }
75152
75153@@ -341,8 +369,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75154 * Thread stack in /proc/PID/task/TID/maps or
75155 * the main process stack.
75156 */
75157- if (!is_pid || (vma->vm_start <= mm->start_stack &&
75158- vma->vm_end >= mm->start_stack)) {
75159+ if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
75160+ (vma->vm_start <= mm->start_stack &&
75161+ vma->vm_end >= mm->start_stack)) {
75162 name = "[stack]";
75163 } else {
75164 /* Thread stack in /proc/PID/maps */
75165@@ -362,6 +391,12 @@ done:
75166
75167 static int show_map(struct seq_file *m, void *v, int is_pid)
75168 {
75169+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75170+ if (current->exec_id != m->exec_id) {
75171+ gr_log_badprocpid("maps");
75172+ return 0;
75173+ }
75174+#endif
75175 show_map_vma(m, v, is_pid);
75176 m_cache_vma(m, v);
75177 return 0;
75178@@ -620,9 +655,18 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
75179 .private = &mss,
75180 };
75181
75182+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75183+ if (current->exec_id != m->exec_id) {
75184+ gr_log_badprocpid("smaps");
75185+ return 0;
75186+ }
75187+#endif
75188 memset(&mss, 0, sizeof mss);
75189- /* mmap_sem is held in m_start */
75190- walk_page_vma(vma, &smaps_walk);
75191+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75192+ if (!PAX_RAND_FLAGS(vma->vm_mm))
75193+#endif
75194+ /* mmap_sem is held in m_start */
75195+ walk_page_vma(vma, &smaps_walk);
75196
75197 show_map_vma(m, vma, is_pid);
75198
75199@@ -641,7 +685,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
75200 "KernelPageSize: %8lu kB\n"
75201 "MMUPageSize: %8lu kB\n"
75202 "Locked: %8lu kB\n",
75203+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75204+ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
75205+#else
75206 (vma->vm_end - vma->vm_start) >> 10,
75207+#endif
75208 mss.resident >> 10,
75209 (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
75210 mss.shared_clean >> 10,
75211@@ -1491,6 +1539,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
75212 char buffer[64];
75213 int nid;
75214
75215+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75216+ if (current->exec_id != m->exec_id) {
75217+ gr_log_badprocpid("numa_maps");
75218+ return 0;
75219+ }
75220+#endif
75221+
75222 if (!mm)
75223 return 0;
75224
75225@@ -1505,11 +1560,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
75226 mpol_to_str(buffer, sizeof(buffer), proc_priv->task_mempolicy);
75227 }
75228
75229+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75230+ seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
75231+#else
75232 seq_printf(m, "%08lx %s", vma->vm_start, buffer);
75233+#endif
75234
75235 if (file) {
75236 seq_puts(m, " file=");
75237- seq_path(m, &file->f_path, "\n\t= ");
75238+ seq_path(m, &file->f_path, "\n\t\\= ");
75239 } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
75240 seq_puts(m, " heap");
75241 } else {
75242diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
75243index 599ec2e..f1413ae 100644
75244--- a/fs/proc/task_nommu.c
75245+++ b/fs/proc/task_nommu.c
75246@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75247 else
75248 bytes += kobjsize(mm);
75249
75250- if (current->fs && current->fs->users > 1)
75251+ if (current->fs && atomic_read(&current->fs->users) > 1)
75252 sbytes += kobjsize(current->fs);
75253 else
75254 bytes += kobjsize(current->fs);
75255@@ -180,7 +180,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
75256
75257 if (file) {
75258 seq_pad(m, ' ');
75259- seq_path(m, &file->f_path, "");
75260+ seq_path(m, &file->f_path, "\n\\");
75261 } else if (mm) {
75262 pid_t tid = pid_of_stack(priv, vma, is_pid);
75263
75264diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
75265index 4e61388..1a2523d 100644
75266--- a/fs/proc/vmcore.c
75267+++ b/fs/proc/vmcore.c
75268@@ -105,9 +105,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
75269 nr_bytes = count;
75270
75271 /* If pfn is not ram, return zeros for sparse dump files */
75272- if (pfn_is_ram(pfn) == 0)
75273- memset(buf, 0, nr_bytes);
75274- else {
75275+ if (pfn_is_ram(pfn) == 0) {
75276+ if (userbuf) {
75277+ if (clear_user((char __force_user *)buf, nr_bytes))
75278+ return -EFAULT;
75279+ } else
75280+ memset(buf, 0, nr_bytes);
75281+ } else {
75282 tmp = copy_oldmem_page(pfn, buf, nr_bytes,
75283 offset, userbuf);
75284 if (tmp < 0)
75285@@ -170,7 +174,7 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
75286 static int copy_to(void *target, void *src, size_t size, int userbuf)
75287 {
75288 if (userbuf) {
75289- if (copy_to_user((char __user *) target, src, size))
75290+ if (copy_to_user((char __force_user *) target, src, size))
75291 return -EFAULT;
75292 } else {
75293 memcpy(target, src, size);
75294@@ -233,7 +237,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
75295 if (*fpos < m->offset + m->size) {
75296 tsz = min_t(size_t, m->offset + m->size - *fpos, buflen);
75297 start = m->paddr + *fpos - m->offset;
75298- tmp = read_from_oldmem(buffer, tsz, &start, userbuf);
75299+ tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, userbuf);
75300 if (tmp < 0)
75301 return tmp;
75302 buflen -= tsz;
75303@@ -253,7 +257,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
75304 static ssize_t read_vmcore(struct file *file, char __user *buffer,
75305 size_t buflen, loff_t *fpos)
75306 {
75307- return __read_vmcore((__force char *) buffer, buflen, fpos, 1);
75308+ return __read_vmcore((__force_kernel char *) buffer, buflen, fpos, 1);
75309 }
75310
75311 /*
75312diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
75313index d3fb2b6..43a8140 100644
75314--- a/fs/qnx6/qnx6.h
75315+++ b/fs/qnx6/qnx6.h
75316@@ -74,7 +74,7 @@ enum {
75317 BYTESEX_BE,
75318 };
75319
75320-static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
75321+static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
75322 {
75323 if (sbi->s_bytesex == BYTESEX_LE)
75324 return le64_to_cpu((__force __le64)n);
75325@@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
75326 return (__force __fs64)cpu_to_be64(n);
75327 }
75328
75329-static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
75330+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
75331 {
75332 if (sbi->s_bytesex == BYTESEX_LE)
75333 return le32_to_cpu((__force __le32)n);
75334diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
75335index bb2869f..d34ada8 100644
75336--- a/fs/quota/netlink.c
75337+++ b/fs/quota/netlink.c
75338@@ -44,7 +44,7 @@ static struct genl_family quota_genl_family = {
75339 void quota_send_warning(struct kqid qid, dev_t dev,
75340 const char warntype)
75341 {
75342- static atomic_t seq;
75343+ static atomic_unchecked_t seq;
75344 struct sk_buff *skb;
75345 void *msg_head;
75346 int ret;
75347@@ -60,7 +60,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
75348 "VFS: Not enough memory to send quota warning.\n");
75349 return;
75350 }
75351- msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
75352+ msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
75353 &quota_genl_family, 0, QUOTA_NL_C_WARNING);
75354 if (!msg_head) {
75355 printk(KERN_ERR
75356diff --git a/fs/read_write.c b/fs/read_write.c
75357index 8e1b687..bad2eec 100644
75358--- a/fs/read_write.c
75359+++ b/fs/read_write.c
75360@@ -553,7 +553,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
75361
75362 old_fs = get_fs();
75363 set_fs(get_ds());
75364- p = (__force const char __user *)buf;
75365+ p = (const char __force_user *)buf;
75366 if (count > MAX_RW_COUNT)
75367 count = MAX_RW_COUNT;
75368 if (file->f_op->write)
75369diff --git a/fs/readdir.c b/fs/readdir.c
75370index ced6791..936687b 100644
75371--- a/fs/readdir.c
75372+++ b/fs/readdir.c
75373@@ -18,6 +18,7 @@
75374 #include <linux/security.h>
75375 #include <linux/syscalls.h>
75376 #include <linux/unistd.h>
75377+#include <linux/namei.h>
75378
75379 #include <asm/uaccess.h>
75380
75381@@ -71,6 +72,7 @@ struct old_linux_dirent {
75382 struct readdir_callback {
75383 struct dir_context ctx;
75384 struct old_linux_dirent __user * dirent;
75385+ struct file * file;
75386 int result;
75387 };
75388
75389@@ -89,6 +91,10 @@ static int fillonedir(struct dir_context *ctx, const char *name, int namlen,
75390 buf->result = -EOVERFLOW;
75391 return -EOVERFLOW;
75392 }
75393+
75394+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75395+ return 0;
75396+
75397 buf->result++;
75398 dirent = buf->dirent;
75399 if (!access_ok(VERIFY_WRITE, dirent,
75400@@ -120,6 +126,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
75401 if (!f.file)
75402 return -EBADF;
75403
75404+ buf.file = f.file;
75405 error = iterate_dir(f.file, &buf.ctx);
75406 if (buf.result)
75407 error = buf.result;
75408@@ -145,6 +152,7 @@ struct getdents_callback {
75409 struct dir_context ctx;
75410 struct linux_dirent __user * current_dir;
75411 struct linux_dirent __user * previous;
75412+ struct file * file;
75413 int count;
75414 int error;
75415 };
75416@@ -167,6 +175,10 @@ static int filldir(struct dir_context *ctx, const char *name, int namlen,
75417 buf->error = -EOVERFLOW;
75418 return -EOVERFLOW;
75419 }
75420+
75421+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75422+ return 0;
75423+
75424 dirent = buf->previous;
75425 if (dirent) {
75426 if (__put_user(offset, &dirent->d_off))
75427@@ -212,6 +224,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
75428 if (!f.file)
75429 return -EBADF;
75430
75431+ buf.file = f.file;
75432 error = iterate_dir(f.file, &buf.ctx);
75433 if (error >= 0)
75434 error = buf.error;
75435@@ -230,6 +243,7 @@ struct getdents_callback64 {
75436 struct dir_context ctx;
75437 struct linux_dirent64 __user * current_dir;
75438 struct linux_dirent64 __user * previous;
75439+ struct file *file;
75440 int count;
75441 int error;
75442 };
75443@@ -246,6 +260,10 @@ static int filldir64(struct dir_context *ctx, const char *name, int namlen,
75444 buf->error = -EINVAL; /* only used if we fail.. */
75445 if (reclen > buf->count)
75446 return -EINVAL;
75447+
75448+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75449+ return 0;
75450+
75451 dirent = buf->previous;
75452 if (dirent) {
75453 if (__put_user(offset, &dirent->d_off))
75454@@ -293,6 +311,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
75455 if (!f.file)
75456 return -EBADF;
75457
75458+ buf.file = f.file;
75459 error = iterate_dir(f.file, &buf.ctx);
75460 if (error >= 0)
75461 error = buf.error;
75462diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
75463index 9c02d96..6562c10 100644
75464--- a/fs/reiserfs/do_balan.c
75465+++ b/fs/reiserfs/do_balan.c
75466@@ -1887,7 +1887,7 @@ void do_balance(struct tree_balance *tb, struct item_head *ih,
75467 return;
75468 }
75469
75470- atomic_inc(&fs_generation(tb->tb_sb));
75471+ atomic_inc_unchecked(&fs_generation(tb->tb_sb));
75472 do_balance_starts(tb);
75473
75474 /*
75475diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
75476index aca73dd..e3c558d 100644
75477--- a/fs/reiserfs/item_ops.c
75478+++ b/fs/reiserfs/item_ops.c
75479@@ -724,18 +724,18 @@ static void errcatch_print_vi(struct virtual_item *vi)
75480 }
75481
75482 static struct item_operations errcatch_ops = {
75483- errcatch_bytes_number,
75484- errcatch_decrement_key,
75485- errcatch_is_left_mergeable,
75486- errcatch_print_item,
75487- errcatch_check_item,
75488+ .bytes_number = errcatch_bytes_number,
75489+ .decrement_key = errcatch_decrement_key,
75490+ .is_left_mergeable = errcatch_is_left_mergeable,
75491+ .print_item = errcatch_print_item,
75492+ .check_item = errcatch_check_item,
75493
75494- errcatch_create_vi,
75495- errcatch_check_left,
75496- errcatch_check_right,
75497- errcatch_part_size,
75498- errcatch_unit_num,
75499- errcatch_print_vi
75500+ .create_vi = errcatch_create_vi,
75501+ .check_left = errcatch_check_left,
75502+ .check_right = errcatch_check_right,
75503+ .part_size = errcatch_part_size,
75504+ .unit_num = errcatch_unit_num,
75505+ .print_vi = errcatch_print_vi
75506 };
75507
75508 #if ! (TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)
75509diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
75510index 621b9f3..af527fd 100644
75511--- a/fs/reiserfs/procfs.c
75512+++ b/fs/reiserfs/procfs.c
75513@@ -114,7 +114,7 @@ static int show_super(struct seq_file *m, void *unused)
75514 "SMALL_TAILS " : "NO_TAILS ",
75515 replay_only(sb) ? "REPLAY_ONLY " : "",
75516 convert_reiserfs(sb) ? "CONV " : "",
75517- atomic_read(&r->s_generation_counter),
75518+ atomic_read_unchecked(&r->s_generation_counter),
75519 SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
75520 SF(s_do_balance), SF(s_unneeded_left_neighbor),
75521 SF(s_good_search_by_key_reada), SF(s_bmaps),
75522diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
75523index bb79cdd..fcf49ef 100644
75524--- a/fs/reiserfs/reiserfs.h
75525+++ b/fs/reiserfs/reiserfs.h
75526@@ -580,7 +580,7 @@ struct reiserfs_sb_info {
75527 /* Comment? -Hans */
75528 wait_queue_head_t s_wait;
75529 /* increased by one every time the tree gets re-balanced */
75530- atomic_t s_generation_counter;
75531+ atomic_unchecked_t s_generation_counter;
75532
75533 /* File system properties. Currently holds on-disk FS format */
75534 unsigned long s_properties;
75535@@ -2301,7 +2301,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
75536 #define REISERFS_USER_MEM 1 /* user memory mode */
75537
75538 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
75539-#define get_generation(s) atomic_read (&fs_generation(s))
75540+#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
75541 #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen)
75542 #define __fs_changed(gen,s) (gen != get_generation (s))
75543 #define fs_changed(gen,s) \
75544diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
75545index 71fbbe3..eff29ba 100644
75546--- a/fs/reiserfs/super.c
75547+++ b/fs/reiserfs/super.c
75548@@ -1868,6 +1868,10 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
75549 sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
75550 sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
75551 sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
75552+#ifdef CONFIG_REISERFS_FS_XATTR
75553+ /* turn on user xattrs by default */
75554+ sbi->s_mount_opt |= (1 << REISERFS_XATTRS_USER);
75555+#endif
75556 /* no preallocation minimum, be smart in reiserfs_file_write instead */
75557 sbi->s_alloc_options.preallocmin = 0;
75558 /* Preallocate by 16 blocks (17-1) at once */
75559diff --git a/fs/select.c b/fs/select.c
75560index f684c75..4117611 100644
75561--- a/fs/select.c
75562+++ b/fs/select.c
75563@@ -20,6 +20,7 @@
75564 #include <linux/export.h>
75565 #include <linux/slab.h>
75566 #include <linux/poll.h>
75567+#include <linux/security.h>
75568 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
75569 #include <linux/file.h>
75570 #include <linux/fdtable.h>
75571@@ -880,6 +881,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
75572 struct poll_list *walk = head;
75573 unsigned long todo = nfds;
75574
75575+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
75576 if (nfds > rlimit(RLIMIT_NOFILE))
75577 return -EINVAL;
75578
75579diff --git a/fs/seq_file.c b/fs/seq_file.c
75580index 555f821..34684d7 100644
75581--- a/fs/seq_file.c
75582+++ b/fs/seq_file.c
75583@@ -12,6 +12,8 @@
75584 #include <linux/slab.h>
75585 #include <linux/cred.h>
75586 #include <linux/mm.h>
75587+#include <linux/sched.h>
75588+#include <linux/grsecurity.h>
75589
75590 #include <asm/uaccess.h>
75591 #include <asm/page.h>
75592@@ -23,16 +25,7 @@ static void seq_set_overflow(struct seq_file *m)
75593
75594 static void *seq_buf_alloc(unsigned long size)
75595 {
75596- void *buf;
75597-
75598- /*
75599- * __GFP_NORETRY to avoid oom-killings with high-order allocations -
75600- * it's better to fall back to vmalloc() than to kill things.
75601- */
75602- buf = kmalloc(size, GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN);
75603- if (!buf && size > PAGE_SIZE)
75604- buf = vmalloc(size);
75605- return buf;
75606+ return kmalloc(size, GFP_KERNEL | GFP_USERCOPY);
75607 }
75608
75609 /**
75610@@ -65,6 +58,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
75611 #ifdef CONFIG_USER_NS
75612 p->user_ns = file->f_cred->user_ns;
75613 #endif
75614+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75615+ p->exec_id = current->exec_id;
75616+#endif
75617
75618 /*
75619 * Wrappers around seq_open(e.g. swaps_open) need to be
75620@@ -87,6 +83,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
75621 }
75622 EXPORT_SYMBOL(seq_open);
75623
75624+
75625+int seq_open_restrict(struct file *file, const struct seq_operations *op)
75626+{
75627+ if (gr_proc_is_restricted())
75628+ return -EACCES;
75629+
75630+ return seq_open(file, op);
75631+}
75632+EXPORT_SYMBOL(seq_open_restrict);
75633+
75634 static int traverse(struct seq_file *m, loff_t offset)
75635 {
75636 loff_t pos = 0, index;
75637@@ -158,7 +164,7 @@ Eoverflow:
75638 ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
75639 {
75640 struct seq_file *m = file->private_data;
75641- size_t copied = 0;
75642+ ssize_t copied = 0;
75643 loff_t pos;
75644 size_t n;
75645 void *p;
75646@@ -557,7 +563,7 @@ static void single_stop(struct seq_file *p, void *v)
75647 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
75648 void *data)
75649 {
75650- struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
75651+ seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
75652 int res = -ENOMEM;
75653
75654 if (op) {
75655@@ -593,6 +599,17 @@ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
75656 }
75657 EXPORT_SYMBOL(single_open_size);
75658
75659+int single_open_restrict(struct file *file, int (*show)(struct seq_file *, void *),
75660+ void *data)
75661+{
75662+ if (gr_proc_is_restricted())
75663+ return -EACCES;
75664+
75665+ return single_open(file, show, data);
75666+}
75667+EXPORT_SYMBOL(single_open_restrict);
75668+
75669+
75670 int single_release(struct inode *inode, struct file *file)
75671 {
75672 const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
75673diff --git a/fs/splice.c b/fs/splice.c
75674index 7968da9..4ce985b 100644
75675--- a/fs/splice.c
75676+++ b/fs/splice.c
75677@@ -193,7 +193,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75678 pipe_lock(pipe);
75679
75680 for (;;) {
75681- if (!pipe->readers) {
75682+ if (!atomic_read(&pipe->readers)) {
75683 send_sig(SIGPIPE, current, 0);
75684 if (!ret)
75685 ret = -EPIPE;
75686@@ -216,7 +216,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75687 page_nr++;
75688 ret += buf->len;
75689
75690- if (pipe->files)
75691+ if (atomic_read(&pipe->files))
75692 do_wakeup = 1;
75693
75694 if (!--spd->nr_pages)
75695@@ -247,9 +247,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75696 do_wakeup = 0;
75697 }
75698
75699- pipe->waiting_writers++;
75700+ atomic_inc(&pipe->waiting_writers);
75701 pipe_wait(pipe);
75702- pipe->waiting_writers--;
75703+ atomic_dec(&pipe->waiting_writers);
75704 }
75705
75706 pipe_unlock(pipe);
75707@@ -576,7 +576,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
75708 old_fs = get_fs();
75709 set_fs(get_ds());
75710 /* The cast to a user pointer is valid due to the set_fs() */
75711- res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
75712+ res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
75713 set_fs(old_fs);
75714
75715 return res;
75716@@ -591,7 +591,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
75717 old_fs = get_fs();
75718 set_fs(get_ds());
75719 /* The cast to a user pointer is valid due to the set_fs() */
75720- res = vfs_write(file, (__force const char __user *)buf, count, &pos);
75721+ res = vfs_write(file, (const char __force_user *)buf, count, &pos);
75722 set_fs(old_fs);
75723
75724 return res;
75725@@ -644,7 +644,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
75726 goto err;
75727
75728 this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
75729- vec[i].iov_base = (void __user *) page_address(page);
75730+ vec[i].iov_base = (void __force_user *) page_address(page);
75731 vec[i].iov_len = this_len;
75732 spd.pages[i] = page;
75733 spd.nr_pages++;
75734@@ -783,7 +783,7 @@ static int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_des
75735 ops->release(pipe, buf);
75736 pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
75737 pipe->nrbufs--;
75738- if (pipe->files)
75739+ if (atomic_read(&pipe->files))
75740 sd->need_wakeup = true;
75741 }
75742
75743@@ -807,10 +807,10 @@ static int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_des
75744 static int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
75745 {
75746 while (!pipe->nrbufs) {
75747- if (!pipe->writers)
75748+ if (!atomic_read(&pipe->writers))
75749 return 0;
75750
75751- if (!pipe->waiting_writers && sd->num_spliced)
75752+ if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
75753 return 0;
75754
75755 if (sd->flags & SPLICE_F_NONBLOCK)
75756@@ -1025,7 +1025,7 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
75757 ops->release(pipe, buf);
75758 pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
75759 pipe->nrbufs--;
75760- if (pipe->files)
75761+ if (atomic_read(&pipe->files))
75762 sd.need_wakeup = true;
75763 } else {
75764 buf->offset += ret;
75765@@ -1159,7 +1159,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75766 long ret, bytes;
75767 umode_t i_mode;
75768 size_t len;
75769- int i, flags;
75770+ int i, flags, more;
75771
75772 /*
75773 * We require the input being a regular file, as we don't want to
75774@@ -1185,7 +1185,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75775 * out of the pipe right after the splice_to_pipe(). So set
75776 * PIPE_READERS appropriately.
75777 */
75778- pipe->readers = 1;
75779+ atomic_set(&pipe->readers, 1);
75780
75781 current->splice_pipe = pipe;
75782 }
75783@@ -1202,6 +1202,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75784 * Don't block on output, we have to drain the direct pipe.
75785 */
75786 sd->flags &= ~SPLICE_F_NONBLOCK;
75787+ more = sd->flags & SPLICE_F_MORE;
75788
75789 while (len) {
75790 size_t read_len;
75791@@ -1215,6 +1216,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75792 sd->total_len = read_len;
75793
75794 /*
75795+ * If more data is pending, set SPLICE_F_MORE
75796+ * If this is the last data and SPLICE_F_MORE was not set
75797+ * initially, clears it.
75798+ */
75799+ if (read_len < len)
75800+ sd->flags |= SPLICE_F_MORE;
75801+ else if (!more)
75802+ sd->flags &= ~SPLICE_F_MORE;
75803+ /*
75804 * NOTE: nonblocking mode only applies to the input. We
75805 * must not do the output in nonblocking mode as then we
75806 * could get stuck data in the internal pipe:
75807@@ -1482,6 +1492,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
75808
75809 partial[buffers].offset = off;
75810 partial[buffers].len = plen;
75811+ partial[buffers].private = 0;
75812
75813 off = 0;
75814 len -= plen;
75815@@ -1718,9 +1729,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75816 ret = -ERESTARTSYS;
75817 break;
75818 }
75819- if (!pipe->writers)
75820+ if (!atomic_read(&pipe->writers))
75821 break;
75822- if (!pipe->waiting_writers) {
75823+ if (!atomic_read(&pipe->waiting_writers)) {
75824 if (flags & SPLICE_F_NONBLOCK) {
75825 ret = -EAGAIN;
75826 break;
75827@@ -1752,7 +1763,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75828 pipe_lock(pipe);
75829
75830 while (pipe->nrbufs >= pipe->buffers) {
75831- if (!pipe->readers) {
75832+ if (!atomic_read(&pipe->readers)) {
75833 send_sig(SIGPIPE, current, 0);
75834 ret = -EPIPE;
75835 break;
75836@@ -1765,9 +1776,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75837 ret = -ERESTARTSYS;
75838 break;
75839 }
75840- pipe->waiting_writers++;
75841+ atomic_inc(&pipe->waiting_writers);
75842 pipe_wait(pipe);
75843- pipe->waiting_writers--;
75844+ atomic_dec(&pipe->waiting_writers);
75845 }
75846
75847 pipe_unlock(pipe);
75848@@ -1803,14 +1814,14 @@ retry:
75849 pipe_double_lock(ipipe, opipe);
75850
75851 do {
75852- if (!opipe->readers) {
75853+ if (!atomic_read(&opipe->readers)) {
75854 send_sig(SIGPIPE, current, 0);
75855 if (!ret)
75856 ret = -EPIPE;
75857 break;
75858 }
75859
75860- if (!ipipe->nrbufs && !ipipe->writers)
75861+ if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
75862 break;
75863
75864 /*
75865@@ -1907,7 +1918,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
75866 pipe_double_lock(ipipe, opipe);
75867
75868 do {
75869- if (!opipe->readers) {
75870+ if (!atomic_read(&opipe->readers)) {
75871 send_sig(SIGPIPE, current, 0);
75872 if (!ret)
75873 ret = -EPIPE;
75874@@ -1952,7 +1963,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
75875 * return EAGAIN if we have the potential of some data in the
75876 * future, otherwise just return 0
75877 */
75878- if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
75879+ if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
75880 ret = -EAGAIN;
75881
75882 pipe_unlock(ipipe);
75883diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c
75884index 92fcde7..1687329 100644
75885--- a/fs/squashfs/xattr.c
75886+++ b/fs/squashfs/xattr.c
75887@@ -46,8 +46,8 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75888 + msblk->xattr_table;
75889 int offset = SQUASHFS_XATTR_OFFSET(squashfs_i(inode)->xattr);
75890 int count = squashfs_i(inode)->xattr_count;
75891- size_t rest = buffer_size;
75892- int err;
75893+ size_t used = 0;
75894+ ssize_t err;
75895
75896 /* check that the file system has xattrs */
75897 if (msblk->xattr_id_table == NULL)
75898@@ -68,11 +68,11 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75899 name_size = le16_to_cpu(entry.size);
75900 handler = squashfs_xattr_handler(le16_to_cpu(entry.type));
75901 if (handler)
75902- prefix_size = handler->list(d, buffer, rest, NULL,
75903+ prefix_size = handler->list(d, buffer, buffer ? buffer_size - used : 0, NULL,
75904 name_size, handler->flags);
75905 if (prefix_size) {
75906 if (buffer) {
75907- if (prefix_size + name_size + 1 > rest) {
75908+ if (prefix_size + name_size + 1 > buffer_size - used) {
75909 err = -ERANGE;
75910 goto failed;
75911 }
75912@@ -86,7 +86,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75913 buffer[name_size] = '\0';
75914 buffer += name_size + 1;
75915 }
75916- rest -= prefix_size + name_size + 1;
75917+ used += prefix_size + name_size + 1;
75918 } else {
75919 /* no handler or insuffficient privileges, so skip */
75920 err = squashfs_read_metadata(sb, NULL, &start,
75921@@ -107,7 +107,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75922 if (err < 0)
75923 goto failed;
75924 }
75925- err = buffer_size - rest;
75926+ err = used;
75927
75928 failed:
75929 return err;
75930diff --git a/fs/stat.c b/fs/stat.c
75931index ae0c3ce..9ee641c 100644
75932--- a/fs/stat.c
75933+++ b/fs/stat.c
75934@@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
75935 stat->gid = inode->i_gid;
75936 stat->rdev = inode->i_rdev;
75937 stat->size = i_size_read(inode);
75938- stat->atime = inode->i_atime;
75939- stat->mtime = inode->i_mtime;
75940+ if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
75941+ stat->atime = inode->i_ctime;
75942+ stat->mtime = inode->i_ctime;
75943+ } else {
75944+ stat->atime = inode->i_atime;
75945+ stat->mtime = inode->i_mtime;
75946+ }
75947 stat->ctime = inode->i_ctime;
75948 stat->blksize = (1 << inode->i_blkbits);
75949 stat->blocks = inode->i_blocks;
75950@@ -52,9 +57,16 @@ EXPORT_SYMBOL(generic_fillattr);
75951 int vfs_getattr_nosec(struct path *path, struct kstat *stat)
75952 {
75953 struct inode *inode = path->dentry->d_inode;
75954+ int retval;
75955
75956- if (inode->i_op->getattr)
75957- return inode->i_op->getattr(path->mnt, path->dentry, stat);
75958+ if (inode->i_op->getattr) {
75959+ retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
75960+ if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
75961+ stat->atime = stat->ctime;
75962+ stat->mtime = stat->ctime;
75963+ }
75964+ return retval;
75965+ }
75966
75967 generic_fillattr(inode, stat);
75968 return 0;
75969diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
75970index 0b45ff4..edf9d3a 100644
75971--- a/fs/sysfs/dir.c
75972+++ b/fs/sysfs/dir.c
75973@@ -33,6 +33,10 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
75974 kfree(buf);
75975 }
75976
75977+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
75978+extern int grsec_enable_sysfs_restrict;
75979+#endif
75980+
75981 /**
75982 * sysfs_create_dir_ns - create a directory for an object with a namespace tag
75983 * @kobj: object we're creating directory for
75984@@ -41,9 +45,16 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
75985 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
75986 {
75987 struct kernfs_node *parent, *kn;
75988+ const char *name;
75989+ umode_t mode = S_IRWXU | S_IRUGO | S_IXUGO;
75990+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
75991+ const char *parent_name;
75992+#endif
75993
75994 BUG_ON(!kobj);
75995
75996+ name = kobject_name(kobj);
75997+
75998 if (kobj->parent)
75999 parent = kobj->parent->sd;
76000 else
76001@@ -52,11 +63,24 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
76002 if (!parent)
76003 return -ENOENT;
76004
76005- kn = kernfs_create_dir_ns(parent, kobject_name(kobj),
76006- S_IRWXU | S_IRUGO | S_IXUGO, kobj, ns);
76007+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
76008+ parent_name = parent->name;
76009+ mode = S_IRWXU;
76010+
76011+ if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
76012+ (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
76013+ (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse") || !strcmp(name, "ecryptfs"))) ||
76014+ (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
76015+ mode = S_IRWXU | S_IRUGO | S_IXUGO;
76016+ if (!grsec_enable_sysfs_restrict)
76017+ mode = S_IRWXU | S_IRUGO | S_IXUGO;
76018+#endif
76019+
76020+ kn = kernfs_create_dir_ns(parent, name,
76021+ mode, kobj, ns);
76022 if (IS_ERR(kn)) {
76023 if (PTR_ERR(kn) == -EEXIST)
76024- sysfs_warn_dup(parent, kobject_name(kobj));
76025+ sysfs_warn_dup(parent, name);
76026 return PTR_ERR(kn);
76027 }
76028
76029diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
76030index 69d4889..a810bd4 100644
76031--- a/fs/sysv/sysv.h
76032+++ b/fs/sysv/sysv.h
76033@@ -188,7 +188,7 @@ static inline u32 PDP_swab(u32 x)
76034 #endif
76035 }
76036
76037-static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
76038+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
76039 {
76040 if (sbi->s_bytesex == BYTESEX_PDP)
76041 return PDP_swab((__force __u32)n);
76042diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
76043index fb08b0c..65fcc7e 100644
76044--- a/fs/ubifs/io.c
76045+++ b/fs/ubifs/io.c
76046@@ -155,7 +155,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
76047 return err;
76048 }
76049
76050-int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
76051+int __intentional_overflow(-1) ubifs_leb_unmap(struct ubifs_info *c, int lnum)
76052 {
76053 int err;
76054
76055diff --git a/fs/udf/misc.c b/fs/udf/misc.c
76056index c175b4d..8f36a16 100644
76057--- a/fs/udf/misc.c
76058+++ b/fs/udf/misc.c
76059@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
76060
76061 u8 udf_tag_checksum(const struct tag *t)
76062 {
76063- u8 *data = (u8 *)t;
76064+ const u8 *data = (const u8 *)t;
76065 u8 checksum = 0;
76066 int i;
76067 for (i = 0; i < sizeof(struct tag); ++i)
76068diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
76069index 8d974c4..b82f6ec 100644
76070--- a/fs/ufs/swab.h
76071+++ b/fs/ufs/swab.h
76072@@ -22,7 +22,7 @@ enum {
76073 BYTESEX_BE
76074 };
76075
76076-static inline u64
76077+static inline u64 __intentional_overflow(-1)
76078 fs64_to_cpu(struct super_block *sbp, __fs64 n)
76079 {
76080 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
76081@@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
76082 return (__force __fs64)cpu_to_be64(n);
76083 }
76084
76085-static inline u32
76086+static inline u32 __intentional_overflow(-1)
76087 fs32_to_cpu(struct super_block *sbp, __fs32 n)
76088 {
76089 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
76090diff --git a/fs/utimes.c b/fs/utimes.c
76091index aa138d6..5f3a811 100644
76092--- a/fs/utimes.c
76093+++ b/fs/utimes.c
76094@@ -1,6 +1,7 @@
76095 #include <linux/compiler.h>
76096 #include <linux/file.h>
76097 #include <linux/fs.h>
76098+#include <linux/security.h>
76099 #include <linux/linkage.h>
76100 #include <linux/mount.h>
76101 #include <linux/namei.h>
76102@@ -103,6 +104,12 @@ static int utimes_common(struct path *path, struct timespec *times)
76103 }
76104 }
76105 retry_deleg:
76106+
76107+ if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
76108+ error = -EACCES;
76109+ goto mnt_drop_write_and_out;
76110+ }
76111+
76112 mutex_lock(&inode->i_mutex);
76113 error = notify_change(path->dentry, &newattrs, &delegated_inode);
76114 mutex_unlock(&inode->i_mutex);
76115diff --git a/fs/xattr.c b/fs/xattr.c
76116index 4ef6985..a6cd6567 100644
76117--- a/fs/xattr.c
76118+++ b/fs/xattr.c
76119@@ -227,6 +227,27 @@ int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
76120 return rc;
76121 }
76122
76123+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
76124+ssize_t
76125+pax_getxattr(struct dentry *dentry, void *value, size_t size)
76126+{
76127+ struct inode *inode = dentry->d_inode;
76128+ ssize_t error;
76129+
76130+ error = inode_permission(inode, MAY_EXEC);
76131+ if (error)
76132+ return error;
76133+
76134+ if (inode->i_op->getxattr)
76135+ error = inode->i_op->getxattr(dentry, XATTR_NAME_PAX_FLAGS, value, size);
76136+ else
76137+ error = -EOPNOTSUPP;
76138+
76139+ return error;
76140+}
76141+EXPORT_SYMBOL(pax_getxattr);
76142+#endif
76143+
76144 ssize_t
76145 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
76146 {
76147@@ -319,7 +340,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
76148 * Extended attribute SET operations
76149 */
76150 static long
76151-setxattr(struct dentry *d, const char __user *name, const void __user *value,
76152+setxattr(struct path *path, const char __user *name, const void __user *value,
76153 size_t size, int flags)
76154 {
76155 int error;
76156@@ -355,7 +376,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
76157 posix_acl_fix_xattr_from_user(kvalue, size);
76158 }
76159
76160- error = vfs_setxattr(d, kname, kvalue, size, flags);
76161+ if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
76162+ error = -EACCES;
76163+ goto out;
76164+ }
76165+
76166+ error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
76167 out:
76168 if (vvalue)
76169 vfree(vvalue);
76170@@ -376,7 +402,7 @@ retry:
76171 return error;
76172 error = mnt_want_write(path.mnt);
76173 if (!error) {
76174- error = setxattr(path.dentry, name, value, size, flags);
76175+ error = setxattr(&path, name, value, size, flags);
76176 mnt_drop_write(path.mnt);
76177 }
76178 path_put(&path);
76179@@ -412,7 +438,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
76180 audit_file(f.file);
76181 error = mnt_want_write_file(f.file);
76182 if (!error) {
76183- error = setxattr(f.file->f_path.dentry, name, value, size, flags);
76184+ error = setxattr(&f.file->f_path, name, value, size, flags);
76185 mnt_drop_write_file(f.file);
76186 }
76187 fdput(f);
76188@@ -598,7 +624,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
76189 * Extended attribute REMOVE operations
76190 */
76191 static long
76192-removexattr(struct dentry *d, const char __user *name)
76193+removexattr(struct path *path, const char __user *name)
76194 {
76195 int error;
76196 char kname[XATTR_NAME_MAX + 1];
76197@@ -609,7 +635,10 @@ removexattr(struct dentry *d, const char __user *name)
76198 if (error < 0)
76199 return error;
76200
76201- return vfs_removexattr(d, kname);
76202+ if (!gr_acl_handle_removexattr(path->dentry, path->mnt))
76203+ return -EACCES;
76204+
76205+ return vfs_removexattr(path->dentry, kname);
76206 }
76207
76208 static int path_removexattr(const char __user *pathname,
76209@@ -623,7 +652,7 @@ retry:
76210 return error;
76211 error = mnt_want_write(path.mnt);
76212 if (!error) {
76213- error = removexattr(path.dentry, name);
76214+ error = removexattr(&path, name);
76215 mnt_drop_write(path.mnt);
76216 }
76217 path_put(&path);
76218@@ -649,14 +678,16 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
76219 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
76220 {
76221 struct fd f = fdget(fd);
76222+ struct path *path;
76223 int error = -EBADF;
76224
76225 if (!f.file)
76226 return error;
76227+ path = &f.file->f_path;
76228 audit_file(f.file);
76229 error = mnt_want_write_file(f.file);
76230 if (!error) {
76231- error = removexattr(f.file->f_path.dentry, name);
76232+ error = removexattr(path, name);
76233 mnt_drop_write_file(f.file);
76234 }
76235 fdput(f);
76236diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
76237index 61ec015..7c18807 100644
76238--- a/fs/xfs/libxfs/xfs_bmap.c
76239+++ b/fs/xfs/libxfs/xfs_bmap.c
76240@@ -580,7 +580,7 @@ xfs_bmap_validate_ret(
76241
76242 #else
76243 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork) do { } while (0)
76244-#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
76245+#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do { } while (0)
76246 #endif /* DEBUG */
76247
76248 /*
76249diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
76250index 098cd78..724d3f8 100644
76251--- a/fs/xfs/xfs_dir2_readdir.c
76252+++ b/fs/xfs/xfs_dir2_readdir.c
76253@@ -140,7 +140,12 @@ xfs_dir2_sf_getdents(
76254 ino = dp->d_ops->sf_get_ino(sfp, sfep);
76255 filetype = dp->d_ops->sf_get_ftype(sfep);
76256 ctx->pos = off & 0x7fffffff;
76257- if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
76258+ if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
76259+ char name[sfep->namelen];
76260+ memcpy(name, sfep->name, sfep->namelen);
76261+ if (!dir_emit(ctx, name, sfep->namelen, ino, xfs_dir3_get_dtype(dp->i_mount, filetype)))
76262+ return 0;
76263+ } else if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
76264 xfs_dir3_get_dtype(dp->i_mount, filetype)))
76265 return 0;
76266 sfep = dp->d_ops->sf_nextentry(sfp, sfep);
76267diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
76268index ac4feae..386d551 100644
76269--- a/fs/xfs/xfs_ioctl.c
76270+++ b/fs/xfs/xfs_ioctl.c
76271@@ -120,7 +120,7 @@ xfs_find_handle(
76272 }
76273
76274 error = -EFAULT;
76275- if (copy_to_user(hreq->ohandle, &handle, hsize) ||
76276+ if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
76277 copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
76278 goto out_put;
76279
76280diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
76281index c31d2c2..6ec8f62 100644
76282--- a/fs/xfs/xfs_linux.h
76283+++ b/fs/xfs/xfs_linux.h
76284@@ -234,7 +234,7 @@ static inline kgid_t xfs_gid_to_kgid(__uint32_t gid)
76285 * of the compiler which do not like us using do_div in the middle
76286 * of large functions.
76287 */
76288-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
76289+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
76290 {
76291 __u32 mod;
76292
76293@@ -290,7 +290,7 @@ static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
76294 return 0;
76295 }
76296 #else
76297-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
76298+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
76299 {
76300 __u32 mod;
76301
76302diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
76303new file mode 100644
76304index 0000000..31f8fe4
76305--- /dev/null
76306+++ b/grsecurity/Kconfig
76307@@ -0,0 +1,1182 @@
76308+#
76309+# grecurity configuration
76310+#
76311+menu "Memory Protections"
76312+depends on GRKERNSEC
76313+
76314+config GRKERNSEC_KMEM
76315+ bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
76316+ default y if GRKERNSEC_CONFIG_AUTO
76317+ select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
76318+ help
76319+ If you say Y here, /dev/kmem and /dev/mem won't be allowed to
76320+ be written to or read from to modify or leak the contents of the running
76321+ kernel. /dev/port will also not be allowed to be opened, writing to
76322+ /dev/cpu/*/msr will be prevented, and support for kexec will be removed.
76323+ If you have module support disabled, enabling this will close up several
76324+ ways that are currently used to insert malicious code into the running
76325+ kernel.
76326+
76327+ Even with this feature enabled, we still highly recommend that
76328+ you use the RBAC system, as it is still possible for an attacker to
76329+ modify the running kernel through other more obscure methods.
76330+
76331+ It is highly recommended that you say Y here if you meet all the
76332+ conditions above.
76333+
76334+config GRKERNSEC_VM86
76335+ bool "Restrict VM86 mode"
76336+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76337+ depends on X86_32
76338+
76339+ help
76340+ If you say Y here, only processes with CAP_SYS_RAWIO will be able to
76341+ make use of a special execution mode on 32bit x86 processors called
76342+ Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain
76343+ video cards and will still work with this option enabled. The purpose
76344+ of the option is to prevent exploitation of emulation errors in
76345+ virtualization of vm86 mode like the one discovered in VMWare in 2009.
76346+ Nearly all users should be able to enable this option.
76347+
76348+config GRKERNSEC_IO
76349+ bool "Disable privileged I/O"
76350+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76351+ depends on X86
76352+ select RTC_CLASS
76353+ select RTC_INTF_DEV
76354+ select RTC_DRV_CMOS
76355+
76356+ help
76357+ If you say Y here, all ioperm and iopl calls will return an error.
76358+ Ioperm and iopl can be used to modify the running kernel.
76359+ Unfortunately, some programs need this access to operate properly,
76360+ the most notable of which are XFree86 and hwclock. hwclock can be
76361+ remedied by having RTC support in the kernel, so real-time
76362+ clock support is enabled if this option is enabled, to ensure
76363+ that hwclock operates correctly. If hwclock still does not work,
76364+ either update udev or symlink /dev/rtc to /dev/rtc0.
76365+
76366+ If you're using XFree86 or a version of Xorg from 2012 or earlier,
76367+ you may not be able to boot into a graphical environment with this
76368+ option enabled. In this case, you should use the RBAC system instead.
76369+
76370+config GRKERNSEC_BPF_HARDEN
76371+ bool "Harden BPF interpreter"
76372+ default y if GRKERNSEC_CONFIG_AUTO
76373+ help
76374+ Unlike previous versions of grsecurity that hardened both the BPF
76375+ interpreted code against corruption at rest as well as the JIT code
76376+ against JIT-spray attacks and attacker-controlled immediate values
76377+ for ROP, this feature will enforce disabling of the new eBPF JIT engine
76378+ and will ensure the interpreted code is read-only at rest. This feature
76379+ may be removed at a later time when eBPF stabilizes to entirely revert
76380+ back to the more secure pre-3.16 BPF interpreter/JIT.
76381+
76382+ If you're using KERNEXEC, it's recommended that you enable this option
76383+ to supplement the hardening of the kernel.
76384+
76385+config GRKERNSEC_PERF_HARDEN
76386+ bool "Disable unprivileged PERF_EVENTS usage by default"
76387+ default y if GRKERNSEC_CONFIG_AUTO
76388+ depends on PERF_EVENTS
76389+ help
76390+ If you say Y here, the range of acceptable values for the
76391+ /proc/sys/kernel/perf_event_paranoid sysctl will be expanded to allow and
76392+ default to a new value: 3. When the sysctl is set to this value, no
76393+ unprivileged use of the PERF_EVENTS syscall interface will be permitted.
76394+
76395+ Though PERF_EVENTS can be used legitimately for performance monitoring
76396+ and low-level application profiling, it is forced on regardless of
76397+ configuration, has been at fault for several vulnerabilities, and
76398+ creates new opportunities for side channels and other information leaks.
76399+
76400+ This feature puts PERF_EVENTS into a secure default state and permits
76401+ the administrator to change out of it temporarily if unprivileged
76402+ application profiling is needed.
76403+
76404+config GRKERNSEC_RAND_THREADSTACK
76405+ bool "Insert random gaps between thread stacks"
76406+ default y if GRKERNSEC_CONFIG_AUTO
76407+ depends on PAX_RANDMMAP && !PPC
76408+ help
76409+ If you say Y here, a random-sized gap will be enforced between allocated
76410+ thread stacks. Glibc's NPTL and other threading libraries that
76411+ pass MAP_STACK to the kernel for thread stack allocation are supported.
76412+ The implementation currently provides 8 bits of entropy for the gap.
76413+
76414+ Many distributions do not compile threaded remote services with the
76415+ -fstack-check argument to GCC, causing the variable-sized stack-based
76416+ allocator, alloca(), to not probe the stack on allocation. This
76417+ permits an unbounded alloca() to skip over any guard page and potentially
76418+ modify another thread's stack reliably. An enforced random gap
76419+ reduces the reliability of such an attack and increases the chance
76420+ that such a read/write to another thread's stack instead lands in
76421+ an unmapped area, causing a crash and triggering grsecurity's
76422+ anti-bruteforcing logic.
76423+
76424+config GRKERNSEC_PROC_MEMMAP
76425+ bool "Harden ASLR against information leaks and entropy reduction"
76426+ default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
76427+ depends on PAX_NOEXEC || PAX_ASLR
76428+ help
76429+ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
76430+ give no information about the addresses of its mappings if
76431+ PaX features that rely on random addresses are enabled on the task.
76432+ In addition to sanitizing this information and disabling other
76433+ dangerous sources of information, this option causes reads of sensitive
76434+ /proc/<pid> entries where the file descriptor was opened in a different
76435+ task than the one performing the read. Such attempts are logged.
76436+ This option also limits argv/env strings for suid/sgid binaries
76437+ to 512KB to prevent a complete exhaustion of the stack entropy provided
76438+ by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid
76439+ binaries to prevent alternative mmap layouts from being abused.
76440+
76441+ If you use PaX it is essential that you say Y here as it closes up
76442+ several holes that make full ASLR useless locally.
76443+
76444+
76445+config GRKERNSEC_KSTACKOVERFLOW
76446+ bool "Prevent kernel stack overflows"
76447+ default y if GRKERNSEC_CONFIG_AUTO
76448+ depends on !IA64 && 64BIT
76449+ help
76450+ If you say Y here, the kernel's process stacks will be allocated
76451+ with vmalloc instead of the kernel's default allocator. This
76452+ introduces guard pages that in combination with the alloca checking
76453+ of the STACKLEAK feature prevents all forms of kernel process stack
76454+ overflow abuse. Note that this is different from kernel stack
76455+ buffer overflows.
76456+
76457+config GRKERNSEC_BRUTE
76458+ bool "Deter exploit bruteforcing"
76459+ default y if GRKERNSEC_CONFIG_AUTO
76460+ help
76461+ If you say Y here, attempts to bruteforce exploits against forking
76462+ daemons such as apache or sshd, as well as against suid/sgid binaries
76463+ will be deterred. When a child of a forking daemon is killed by PaX
76464+ or crashes due to an illegal instruction or other suspicious signal,
76465+ the parent process will be delayed 30 seconds upon every subsequent
76466+ fork until the administrator is able to assess the situation and
76467+ restart the daemon.
76468+ In the suid/sgid case, the attempt is logged, the user has all their
76469+ existing instances of the suid/sgid binary terminated and will
76470+ be unable to execute any suid/sgid binaries for 15 minutes.
76471+
76472+ It is recommended that you also enable signal logging in the auditing
76473+ section so that logs are generated when a process triggers a suspicious
76474+ signal.
76475+ If the sysctl option is enabled, a sysctl option with name
76476+ "deter_bruteforce" is created.
76477+
76478+config GRKERNSEC_MODHARDEN
76479+ bool "Harden module auto-loading"
76480+ default y if GRKERNSEC_CONFIG_AUTO
76481+ depends on MODULES
76482+ help
76483+ If you say Y here, module auto-loading in response to use of some
76484+ feature implemented by an unloaded module will be restricted to
76485+ root users. Enabling this option helps defend against attacks
76486+ by unprivileged users who abuse the auto-loading behavior to
76487+ cause a vulnerable module to load that is then exploited.
76488+
76489+ If this option prevents a legitimate use of auto-loading for a
76490+ non-root user, the administrator can execute modprobe manually
76491+ with the exact name of the module mentioned in the alert log.
76492+ Alternatively, the administrator can add the module to the list
76493+ of modules loaded at boot by modifying init scripts.
76494+
76495+ Modification of init scripts will most likely be needed on
76496+ Ubuntu servers with encrypted home directory support enabled,
76497+ as the first non-root user logging in will cause the ecb(aes),
76498+ ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded.
76499+
76500+config GRKERNSEC_HIDESYM
76501+ bool "Hide kernel symbols"
76502+ default y if GRKERNSEC_CONFIG_AUTO
76503+ select PAX_USERCOPY_SLABS
76504+ help
76505+ If you say Y here, getting information on loaded modules, and
76506+ displaying all kernel symbols through a syscall will be restricted
76507+ to users with CAP_SYS_MODULE. For software compatibility reasons,
76508+ /proc/kallsyms will be restricted to the root user. The RBAC
76509+ system can hide that entry even from root.
76510+
76511+ This option also prevents leaking of kernel addresses through
76512+ several /proc entries.
76513+
76514+ Note that this option is only effective provided the following
76515+ conditions are met:
76516+ 1) The kernel using grsecurity is not precompiled by some distribution
76517+ 2) You have also enabled GRKERNSEC_DMESG
76518+ 3) You are using the RBAC system and hiding other files such as your
76519+ kernel image and System.map. Alternatively, enabling this option
76520+ causes the permissions on /boot, /lib/modules, and the kernel
76521+ source directory to change at compile time to prevent
76522+ reading by non-root users.
76523+ If the above conditions are met, this option will aid in providing a
76524+ useful protection against local kernel exploitation of overflows
76525+ and arbitrary read/write vulnerabilities.
76526+
76527+ It is highly recommended that you enable GRKERNSEC_PERF_HARDEN
76528+ in addition to this feature.
76529+
76530+config GRKERNSEC_RANDSTRUCT
76531+ bool "Randomize layout of sensitive kernel structures"
76532+ default y if GRKERNSEC_CONFIG_AUTO
76533+ select GRKERNSEC_HIDESYM
76534+ select MODVERSIONS if MODULES
76535+ help
76536+ If you say Y here, the layouts of a number of sensitive kernel
76537+ structures (task, fs, cred, etc) and all structures composed entirely
76538+ of function pointers (aka "ops" structs) will be randomized at compile-time.
76539+ This can introduce the requirement of an additional infoleak
76540+ vulnerability for exploits targeting these structure types.
76541+
76542+ Enabling this feature will introduce some performance impact, slightly
76543+ increase memory usage, and prevent the use of forensic tools like
76544+ Volatility against the system (unless the kernel source tree isn't
76545+ cleaned after kernel installation).
76546+
76547+ The seed used for compilation is located at tools/gcc/randomize_layout_seed.h.
76548+ It remains after a make clean to allow for external modules to be compiled
76549+ with the existing seed and will be removed by a make mrproper or
76550+ make distclean.
76551+
76552+ Note that the implementation requires gcc 4.6.4. or newer. You may need
76553+ to install the supporting headers explicitly in addition to the normal
76554+ gcc package.
76555+
76556+config GRKERNSEC_RANDSTRUCT_PERFORMANCE
76557+ bool "Use cacheline-aware structure randomization"
76558+ depends on GRKERNSEC_RANDSTRUCT
76559+ default y if GRKERNSEC_CONFIG_PRIORITY_PERF
76560+ help
76561+ If you say Y here, the RANDSTRUCT randomization will make a best effort
76562+ at restricting randomization to cacheline-sized groups of elements. It
76563+ will further not randomize bitfields in structures. This reduces the
76564+ performance hit of RANDSTRUCT at the cost of weakened randomization.
76565+
76566+config GRKERNSEC_KERN_LOCKOUT
76567+ bool "Active kernel exploit response"
76568+ default y if GRKERNSEC_CONFIG_AUTO
76569+ depends on X86 || ARM || PPC || SPARC
76570+ help
76571+ If you say Y here, when a PaX alert is triggered due to suspicious
76572+ activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
76573+ or an OOPS occurs due to bad memory accesses, instead of just
76574+ terminating the offending process (and potentially allowing
76575+ a subsequent exploit from the same user), we will take one of two
76576+ actions:
76577+ If the user was root, we will panic the system
76578+ If the user was non-root, we will log the attempt, terminate
76579+ all processes owned by the user, then prevent them from creating
76580+ any new processes until the system is restarted
76581+ This deters repeated kernel exploitation/bruteforcing attempts
76582+ and is useful for later forensics.
76583+
76584+config GRKERNSEC_OLD_ARM_USERLAND
76585+ bool "Old ARM userland compatibility"
76586+ depends on ARM && (CPU_V6 || CPU_V6K || CPU_V7)
76587+ help
76588+ If you say Y here, stubs of executable code to perform such operations
76589+ as "compare-exchange" will be placed at fixed locations in the ARM vector
76590+ table. This is unfortunately needed for old ARM userland meant to run
76591+ across a wide range of processors. Without this option enabled,
76592+ the get_tls and data memory barrier stubs will be emulated by the kernel,
76593+ which is enough for Linaro userlands or other userlands designed for v6
76594+ and newer ARM CPUs. It's recommended that you try without this option enabled
76595+ first, and only enable it if your userland does not boot (it will likely fail
76596+ at init time).
76597+
76598+endmenu
76599+menu "Role Based Access Control Options"
76600+depends on GRKERNSEC
76601+
76602+config GRKERNSEC_RBAC_DEBUG
76603+ bool
76604+
76605+config GRKERNSEC_NO_RBAC
76606+ bool "Disable RBAC system"
76607+ help
76608+ If you say Y here, the /dev/grsec device will be removed from the kernel,
76609+ preventing the RBAC system from being enabled. You should only say Y
76610+ here if you have no intention of using the RBAC system, so as to prevent
76611+ an attacker with root access from misusing the RBAC system to hide files
76612+ and processes when loadable module support and /dev/[k]mem have been
76613+ locked down.
76614+
76615+config GRKERNSEC_ACL_HIDEKERN
76616+ bool "Hide kernel processes"
76617+ help
76618+ If you say Y here, all kernel threads will be hidden to all
76619+ processes but those whose subject has the "view hidden processes"
76620+ flag.
76621+
76622+config GRKERNSEC_ACL_MAXTRIES
76623+ int "Maximum tries before password lockout"
76624+ default 3
76625+ help
76626+ This option enforces the maximum number of times a user can attempt
76627+ to authorize themselves with the grsecurity RBAC system before being
76628+ denied the ability to attempt authorization again for a specified time.
76629+ The lower the number, the harder it will be to brute-force a password.
76630+
76631+config GRKERNSEC_ACL_TIMEOUT
76632+ int "Time to wait after max password tries, in seconds"
76633+ default 30
76634+ help
76635+ This option specifies the time the user must wait after attempting to
76636+ authorize to the RBAC system with the maximum number of invalid
76637+ passwords. The higher the number, the harder it will be to brute-force
76638+ a password.
76639+
76640+endmenu
76641+menu "Filesystem Protections"
76642+depends on GRKERNSEC
76643+
76644+config GRKERNSEC_PROC
76645+ bool "Proc restrictions"
76646+ default y if GRKERNSEC_CONFIG_AUTO
76647+ help
76648+ If you say Y here, the permissions of the /proc filesystem
76649+ will be altered to enhance system security and privacy. You MUST
76650+ choose either a user only restriction or a user and group restriction.
76651+ Depending upon the option you choose, you can either restrict users to
76652+ see only the processes they themselves run, or choose a group that can
76653+ view all processes and files normally restricted to root if you choose
76654+ the "restrict to user only" option. NOTE: If you're running identd or
76655+ ntpd as a non-root user, you will have to run it as the group you
76656+ specify here.
76657+
76658+config GRKERNSEC_PROC_USER
76659+ bool "Restrict /proc to user only"
76660+ depends on GRKERNSEC_PROC
76661+ help
76662+ If you say Y here, non-root users will only be able to view their own
76663+ processes, and restricts them from viewing network-related information,
76664+ and viewing kernel symbol and module information.
76665+
76666+config GRKERNSEC_PROC_USERGROUP
76667+ bool "Allow special group"
76668+ default y if GRKERNSEC_CONFIG_AUTO
76669+ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
76670+ help
76671+ If you say Y here, you will be able to select a group that will be
76672+ able to view all processes and network-related information. If you've
76673+ enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
76674+ remain hidden. This option is useful if you want to run identd as
76675+ a non-root user. The group you select may also be chosen at boot time
76676+ via "grsec_proc_gid=" on the kernel commandline.
76677+
76678+config GRKERNSEC_PROC_GID
76679+ int "GID for special group"
76680+ depends on GRKERNSEC_PROC_USERGROUP
76681+ default 1001
76682+
76683+config GRKERNSEC_PROC_ADD
76684+ bool "Additional restrictions"
76685+ default y if GRKERNSEC_CONFIG_AUTO
76686+ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
76687+ help
76688+ If you say Y here, additional restrictions will be placed on
76689+ /proc that keep normal users from viewing device information and
76690+ slabinfo information that could be useful for exploits.
76691+
76692+config GRKERNSEC_LINK
76693+ bool "Linking restrictions"
76694+ default y if GRKERNSEC_CONFIG_AUTO
76695+ help
76696+ If you say Y here, /tmp race exploits will be prevented, since users
76697+ will no longer be able to follow symlinks owned by other users in
76698+ world-writable +t directories (e.g. /tmp), unless the owner of the
76699+ symlink is the owner of the directory. users will also not be
76700+ able to hardlink to files they do not own. If the sysctl option is
76701+ enabled, a sysctl option with name "linking_restrictions" is created.
76702+
76703+config GRKERNSEC_SYMLINKOWN
76704+ bool "Kernel-enforced SymlinksIfOwnerMatch"
76705+ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
76706+ help
76707+ Apache's SymlinksIfOwnerMatch option has an inherent race condition
76708+ that prevents it from being used as a security feature. As Apache
76709+ verifies the symlink by performing a stat() against the target of
76710+ the symlink before it is followed, an attacker can setup a symlink
76711+ to point to a same-owned file, then replace the symlink with one
76712+ that targets another user's file just after Apache "validates" the
76713+ symlink -- a classic TOCTOU race. If you say Y here, a complete,
76714+ race-free replacement for Apache's "SymlinksIfOwnerMatch" option
76715+ will be in place for the group you specify. If the sysctl option
76716+ is enabled, a sysctl option with name "enforce_symlinksifowner" is
76717+ created.
76718+
76719+config GRKERNSEC_SYMLINKOWN_GID
76720+ int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
76721+ depends on GRKERNSEC_SYMLINKOWN
76722+ default 1006
76723+ help
76724+ Setting this GID determines what group kernel-enforced
76725+ SymlinksIfOwnerMatch will be enabled for. If the sysctl option
76726+ is enabled, a sysctl option with name "symlinkown_gid" is created.
76727+
76728+config GRKERNSEC_FIFO
76729+ bool "FIFO restrictions"
76730+ default y if GRKERNSEC_CONFIG_AUTO
76731+ help
76732+ If you say Y here, users will not be able to write to FIFOs they don't
76733+ own in world-writable +t directories (e.g. /tmp), unless the owner of
76734+ the FIFO is the same owner of the directory it's held in. If the sysctl
76735+ option is enabled, a sysctl option with name "fifo_restrictions" is
76736+ created.
76737+
76738+config GRKERNSEC_SYSFS_RESTRICT
76739+ bool "Sysfs/debugfs restriction"
76740+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76741+ depends on SYSFS
76742+ help
76743+ If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
76744+ any filesystem normally mounted under it (e.g. debugfs) will be
76745+ mostly accessible only by root. These filesystems generally provide access
76746+ to hardware and debug information that isn't appropriate for unprivileged
76747+ users of the system. Sysfs and debugfs have also become a large source
76748+ of new vulnerabilities, ranging from infoleaks to local compromise.
76749+ There has been very little oversight with an eye toward security involved
76750+ in adding new exporters of information to these filesystems, so their
76751+ use is discouraged.
76752+ For reasons of compatibility, a few directories have been whitelisted
76753+ for access by non-root users:
76754+ /sys/fs/selinux
76755+ /sys/fs/fuse
76756+ /sys/devices/system/cpu
76757+
76758+config GRKERNSEC_ROFS
76759+ bool "Runtime read-only mount protection"
76760+ depends on SYSCTL
76761+ help
76762+ If you say Y here, a sysctl option with name "romount_protect" will
76763+ be created. By setting this option to 1 at runtime, filesystems
76764+ will be protected in the following ways:
76765+ * No new writable mounts will be allowed
76766+ * Existing read-only mounts won't be able to be remounted read/write
76767+ * Write operations will be denied on all block devices
76768+ This option acts independently of grsec_lock: once it is set to 1,
76769+ it cannot be turned off. Therefore, please be mindful of the resulting
76770+ behavior if this option is enabled in an init script on a read-only
76771+ filesystem.
76772+ Also be aware that as with other root-focused features, GRKERNSEC_KMEM
76773+ and GRKERNSEC_IO should be enabled and module loading disabled via
76774+ config or at runtime.
76775+ This feature is mainly intended for secure embedded systems.
76776+
76777+
76778+config GRKERNSEC_DEVICE_SIDECHANNEL
76779+ bool "Eliminate stat/notify-based device sidechannels"
76780+ default y if GRKERNSEC_CONFIG_AUTO
76781+ help
76782+ If you say Y here, timing analyses on block or character
76783+ devices like /dev/ptmx using stat or inotify/dnotify/fanotify
76784+ will be thwarted for unprivileged users. If a process without
76785+ CAP_MKNOD stats such a device, the last access and last modify times
76786+ will match the device's create time. No access or modify events
76787+ will be triggered through inotify/dnotify/fanotify for such devices.
76788+ This feature will prevent attacks that may at a minimum
76789+ allow an attacker to determine the administrator's password length.
76790+
76791+config GRKERNSEC_CHROOT
76792+ bool "Chroot jail restrictions"
76793+ default y if GRKERNSEC_CONFIG_AUTO
76794+ help
76795+ If you say Y here, you will be able to choose several options that will
76796+ make breaking out of a chrooted jail much more difficult. If you
76797+ encounter no software incompatibilities with the following options, it
76798+ is recommended that you enable each one.
76799+
76800+ Note that the chroot restrictions are not intended to apply to "chroots"
76801+ to directories that are simple bind mounts of the global root filesystem.
76802+ For several other reasons, a user shouldn't expect any significant
76803+ security by performing such a chroot.
76804+
76805+config GRKERNSEC_CHROOT_MOUNT
76806+ bool "Deny mounts"
76807+ default y if GRKERNSEC_CONFIG_AUTO
76808+ depends on GRKERNSEC_CHROOT
76809+ help
76810+ If you say Y here, processes inside a chroot will not be able to
76811+ mount or remount filesystems. If the sysctl option is enabled, a
76812+ sysctl option with name "chroot_deny_mount" is created.
76813+
76814+config GRKERNSEC_CHROOT_DOUBLE
76815+ bool "Deny double-chroots"
76816+ default y if GRKERNSEC_CONFIG_AUTO
76817+ depends on GRKERNSEC_CHROOT
76818+ help
76819+ If you say Y here, processes inside a chroot will not be able to chroot
76820+ again outside the chroot. This is a widely used method of breaking
76821+ out of a chroot jail and should not be allowed. If the sysctl
76822+ option is enabled, a sysctl option with name
76823+ "chroot_deny_chroot" is created.
76824+
76825+config GRKERNSEC_CHROOT_PIVOT
76826+ bool "Deny pivot_root in chroot"
76827+ default y if GRKERNSEC_CONFIG_AUTO
76828+ depends on GRKERNSEC_CHROOT
76829+ help
76830+ If you say Y here, processes inside a chroot will not be able to use
76831+ a function called pivot_root() that was introduced in Linux 2.3.41. It
76832+ works similar to chroot in that it changes the root filesystem. This
76833+ function could be misused in a chrooted process to attempt to break out
76834+ of the chroot, and therefore should not be allowed. If the sysctl
76835+ option is enabled, a sysctl option with name "chroot_deny_pivot" is
76836+ created.
76837+
76838+config GRKERNSEC_CHROOT_CHDIR
76839+ bool "Enforce chdir(\"/\") on all chroots"
76840+ default y if GRKERNSEC_CONFIG_AUTO
76841+ depends on GRKERNSEC_CHROOT
76842+ help
76843+ If you say Y here, the current working directory of all newly-chrooted
76844+ applications will be set to the the root directory of the chroot.
76845+ The man page on chroot(2) states:
76846+ Note that this call does not change the current working
76847+ directory, so that `.' can be outside the tree rooted at
76848+ `/'. In particular, the super-user can escape from a
76849+ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
76850+
76851+ It is recommended that you say Y here, since it's not known to break
76852+ any software. If the sysctl option is enabled, a sysctl option with
76853+ name "chroot_enforce_chdir" is created.
76854+
76855+config GRKERNSEC_CHROOT_CHMOD
76856+ bool "Deny (f)chmod +s"
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 chmod
76861+ or fchmod files to make them have suid or sgid bits. This protects
76862+ against another published method of breaking a chroot. If the sysctl
76863+ option is enabled, a sysctl option with name "chroot_deny_chmod" is
76864+ created.
76865+
76866+config GRKERNSEC_CHROOT_FCHDIR
76867+ bool "Deny fchdir and fhandle out of chroot"
76868+ default y if GRKERNSEC_CONFIG_AUTO
76869+ depends on GRKERNSEC_CHROOT
76870+ help
76871+ If you say Y here, a well-known method of breaking chroots by fchdir'ing
76872+ to a file descriptor of the chrooting process that points to a directory
76873+ outside the filesystem will be stopped. Additionally, this option prevents
76874+ use of the recently-created syscall for opening files by a guessable "file
76875+ handle" inside a chroot. If the sysctl option is enabled, a sysctl option
76876+ with name "chroot_deny_fchdir" is created.
76877+
76878+config GRKERNSEC_CHROOT_MKNOD
76879+ bool "Deny mknod"
76880+ default y if GRKERNSEC_CONFIG_AUTO
76881+ depends on GRKERNSEC_CHROOT
76882+ help
76883+ If you say Y here, processes inside a chroot will not be allowed to
76884+ mknod. The problem with using mknod inside a chroot is that it
76885+ would allow an attacker to create a device entry that is the same
76886+ as one on the physical root of your system, which could range from
76887+ anything from the console device to a device for your harddrive (which
76888+ they could then use to wipe the drive or steal data). It is recommended
76889+ that you say Y here, unless you run into software incompatibilities.
76890+ If the sysctl option is enabled, a sysctl option with name
76891+ "chroot_deny_mknod" is created.
76892+
76893+config GRKERNSEC_CHROOT_SHMAT
76894+ bool "Deny shmat() out of chroot"
76895+ default y if GRKERNSEC_CONFIG_AUTO
76896+ depends on GRKERNSEC_CHROOT
76897+ help
76898+ If you say Y here, processes inside a chroot will not be able to attach
76899+ to shared memory segments that were created outside of the chroot jail.
76900+ It is recommended that you say Y here. If the sysctl option is enabled,
76901+ a sysctl option with name "chroot_deny_shmat" is created.
76902+
76903+config GRKERNSEC_CHROOT_UNIX
76904+ bool "Deny access to abstract AF_UNIX sockets out of chroot"
76905+ default y if GRKERNSEC_CONFIG_AUTO
76906+ depends on GRKERNSEC_CHROOT
76907+ help
76908+ If you say Y here, processes inside a chroot will not be able to
76909+ connect to abstract (meaning not belonging to a filesystem) Unix
76910+ domain sockets that were bound outside of a chroot. It is recommended
76911+ that you say Y here. If the sysctl option is enabled, a sysctl option
76912+ with name "chroot_deny_unix" is created.
76913+
76914+config GRKERNSEC_CHROOT_FINDTASK
76915+ bool "Protect outside processes"
76916+ default y if GRKERNSEC_CONFIG_AUTO
76917+ depends on GRKERNSEC_CHROOT
76918+ help
76919+ If you say Y here, processes inside a chroot will not be able to
76920+ kill, send signals with fcntl, ptrace, capget, getpgid, setpgid,
76921+ getsid, or view any process outside of the chroot. If the sysctl
76922+ option is enabled, a sysctl option with name "chroot_findtask" is
76923+ created.
76924+
76925+config GRKERNSEC_CHROOT_NICE
76926+ bool "Restrict priority changes"
76927+ default y if GRKERNSEC_CONFIG_AUTO
76928+ depends on GRKERNSEC_CHROOT
76929+ help
76930+ If you say Y here, processes inside a chroot will not be able to raise
76931+ the priority of processes in the chroot, or alter the priority of
76932+ processes outside the chroot. This provides more security than simply
76933+ removing CAP_SYS_NICE from the process' capability set. If the
76934+ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
76935+ is created.
76936+
76937+config GRKERNSEC_CHROOT_SYSCTL
76938+ bool "Deny sysctl writes"
76939+ default y if GRKERNSEC_CONFIG_AUTO
76940+ depends on GRKERNSEC_CHROOT
76941+ help
76942+ If you say Y here, an attacker in a chroot will not be able to
76943+ write to sysctl entries, either by sysctl(2) or through a /proc
76944+ interface. It is strongly recommended that you say Y here. If the
76945+ sysctl option is enabled, a sysctl option with name
76946+ "chroot_deny_sysctl" is created.
76947+
76948+config GRKERNSEC_CHROOT_RENAME
76949+ bool "Deny bad renames"
76950+ default y if GRKERNSEC_CONFIG_AUTO
76951+ depends on GRKERNSEC_CHROOT
76952+ help
76953+ If you say Y here, an attacker in a chroot will not be able to
76954+ abuse the ability to create double chroots to break out of the
76955+ chroot by exploiting a race condition between a rename of a directory
76956+ within a chroot against an open of a symlink with relative path
76957+ components. This feature will likewise prevent an accomplice outside
76958+ a chroot from enabling a user inside the chroot to break out and make
76959+ use of their credentials on the global filesystem. Enabling this
76960+ feature is essential to prevent root users from breaking out of a
76961+ chroot. If the sysctl option is enabled, a sysctl option with name
76962+ "chroot_deny_bad_rename" is created.
76963+
76964+config GRKERNSEC_CHROOT_CAPS
76965+ bool "Capability restrictions"
76966+ default y if GRKERNSEC_CONFIG_AUTO
76967+ depends on GRKERNSEC_CHROOT
76968+ help
76969+ If you say Y here, the capabilities on all processes within a
76970+ chroot jail will be lowered to stop module insertion, raw i/o,
76971+ system and net admin tasks, rebooting the system, modifying immutable
76972+ files, modifying IPC owned by another, and changing the system time.
76973+ This is left an option because it can break some apps. Disable this
76974+ if your chrooted apps are having problems performing those kinds of
76975+ tasks. If the sysctl option is enabled, a sysctl option with
76976+ name "chroot_caps" is created.
76977+
76978+config GRKERNSEC_CHROOT_INITRD
76979+ bool "Exempt initrd tasks from restrictions"
76980+ default y if GRKERNSEC_CONFIG_AUTO
76981+ depends on GRKERNSEC_CHROOT && BLK_DEV_INITRD
76982+ help
76983+ If you say Y here, tasks started prior to init will be exempted from
76984+ grsecurity's chroot restrictions. This option is mainly meant to
76985+ resolve Plymouth's performing privileged operations unnecessarily
76986+ in a chroot.
76987+
76988+endmenu
76989+menu "Kernel Auditing"
76990+depends on GRKERNSEC
76991+
76992+config GRKERNSEC_AUDIT_GROUP
76993+ bool "Single group for auditing"
76994+ help
76995+ If you say Y here, the exec and chdir logging features will only operate
76996+ on a group you specify. This option is recommended if you only want to
76997+ watch certain users instead of having a large amount of logs from the
76998+ entire system. If the sysctl option is enabled, a sysctl option with
76999+ name "audit_group" is created.
77000+
77001+config GRKERNSEC_AUDIT_GID
77002+ int "GID for auditing"
77003+ depends on GRKERNSEC_AUDIT_GROUP
77004+ default 1007
77005+
77006+config GRKERNSEC_EXECLOG
77007+ bool "Exec logging"
77008+ help
77009+ If you say Y here, all execve() calls will be logged (since the
77010+ other exec*() calls are frontends to execve(), all execution
77011+ will be logged). Useful for shell-servers that like to keep track
77012+ of their users. If the sysctl option is enabled, a sysctl option with
77013+ name "exec_logging" is created.
77014+ WARNING: This option when enabled will produce a LOT of logs, especially
77015+ on an active system.
77016+
77017+config GRKERNSEC_RESLOG
77018+ bool "Resource logging"
77019+ default y if GRKERNSEC_CONFIG_AUTO
77020+ help
77021+ If you say Y here, all attempts to overstep resource limits will
77022+ be logged with the resource name, the requested size, and the current
77023+ limit. It is highly recommended that you say Y here. If the sysctl
77024+ option is enabled, a sysctl option with name "resource_logging" is
77025+ created. If the RBAC system is enabled, the sysctl value is ignored.
77026+
77027+config GRKERNSEC_CHROOT_EXECLOG
77028+ bool "Log execs within chroot"
77029+ help
77030+ If you say Y here, all executions inside a chroot jail will be logged
77031+ to syslog. This can cause a large amount of logs if certain
77032+ applications (eg. djb's daemontools) are installed on the system, and
77033+ is therefore left as an option. If the sysctl option is enabled, a
77034+ sysctl option with name "chroot_execlog" is created.
77035+
77036+config GRKERNSEC_AUDIT_PTRACE
77037+ bool "Ptrace logging"
77038+ help
77039+ If you say Y here, all attempts to attach to a process via ptrace
77040+ will be logged. If the sysctl option is enabled, a sysctl option
77041+ with name "audit_ptrace" is created.
77042+
77043+config GRKERNSEC_AUDIT_CHDIR
77044+ bool "Chdir logging"
77045+ help
77046+ If you say Y here, all chdir() calls will be logged. If the sysctl
77047+ option is enabled, a sysctl option with name "audit_chdir" is created.
77048+
77049+config GRKERNSEC_AUDIT_MOUNT
77050+ bool "(Un)Mount logging"
77051+ help
77052+ If you say Y here, all mounts and unmounts will be logged. If the
77053+ sysctl option is enabled, a sysctl option with name "audit_mount" is
77054+ created.
77055+
77056+config GRKERNSEC_SIGNAL
77057+ bool "Signal logging"
77058+ default y if GRKERNSEC_CONFIG_AUTO
77059+ help
77060+ If you say Y here, certain important signals will be logged, such as
77061+ SIGSEGV, which will as a result inform you of when a error in a program
77062+ occurred, which in some cases could mean a possible exploit attempt.
77063+ If the sysctl option is enabled, a sysctl option with name
77064+ "signal_logging" is created.
77065+
77066+config GRKERNSEC_FORKFAIL
77067+ bool "Fork failure logging"
77068+ help
77069+ If you say Y here, all failed fork() attempts will be logged.
77070+ This could suggest a fork bomb, or someone attempting to overstep
77071+ their process limit. If the sysctl option is enabled, a sysctl option
77072+ with name "forkfail_logging" is created.
77073+
77074+config GRKERNSEC_TIME
77075+ bool "Time change logging"
77076+ default y if GRKERNSEC_CONFIG_AUTO
77077+ help
77078+ If you say Y here, any changes of the system clock will be logged.
77079+ If the sysctl option is enabled, a sysctl option with name
77080+ "timechange_logging" is created.
77081+
77082+config GRKERNSEC_PROC_IPADDR
77083+ bool "/proc/<pid>/ipaddr support"
77084+ default y if GRKERNSEC_CONFIG_AUTO
77085+ help
77086+ If you say Y here, a new entry will be added to each /proc/<pid>
77087+ directory that contains the IP address of the person using the task.
77088+ The IP is carried across local TCP and AF_UNIX stream sockets.
77089+ This information can be useful for IDS/IPSes to perform remote response
77090+ to a local attack. The entry is readable by only the owner of the
77091+ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
77092+ the RBAC system), and thus does not create privacy concerns.
77093+
77094+config GRKERNSEC_RWXMAP_LOG
77095+ bool 'Denied RWX mmap/mprotect logging'
77096+ default y if GRKERNSEC_CONFIG_AUTO
77097+ depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
77098+ help
77099+ If you say Y here, calls to mmap() and mprotect() with explicit
77100+ usage of PROT_WRITE and PROT_EXEC together will be logged when
77101+ denied by the PAX_MPROTECT feature. This feature will also
77102+ log other problematic scenarios that can occur when PAX_MPROTECT
77103+ is enabled on a binary, like textrels and PT_GNU_STACK. If the
77104+ sysctl option is enabled, a sysctl option with name "rwxmap_logging"
77105+ is created.
77106+
77107+endmenu
77108+
77109+menu "Executable Protections"
77110+depends on GRKERNSEC
77111+
77112+config GRKERNSEC_DMESG
77113+ bool "Dmesg(8) restriction"
77114+ default y if GRKERNSEC_CONFIG_AUTO
77115+ help
77116+ If you say Y here, non-root users will not be able to use dmesg(8)
77117+ to view the contents of the kernel's circular log buffer.
77118+ The kernel's log buffer often contains kernel addresses and other
77119+ identifying information useful to an attacker in fingerprinting a
77120+ system for a targeted exploit.
77121+ If the sysctl option is enabled, a sysctl option with name "dmesg" is
77122+ created.
77123+
77124+config GRKERNSEC_HARDEN_PTRACE
77125+ bool "Deter ptrace-based process snooping"
77126+ default y if GRKERNSEC_CONFIG_AUTO
77127+ help
77128+ If you say Y here, TTY sniffers and other malicious monitoring
77129+ programs implemented through ptrace will be defeated. If you
77130+ have been using the RBAC system, this option has already been
77131+ enabled for several years for all users, with the ability to make
77132+ fine-grained exceptions.
77133+
77134+ This option only affects the ability of non-root users to ptrace
77135+ processes that are not a descendent of the ptracing process.
77136+ This means that strace ./binary and gdb ./binary will still work,
77137+ but attaching to arbitrary processes will not. If the sysctl
77138+ option is enabled, a sysctl option with name "harden_ptrace" is
77139+ created.
77140+
77141+config GRKERNSEC_PTRACE_READEXEC
77142+ bool "Require read access to ptrace sensitive binaries"
77143+ default y if GRKERNSEC_CONFIG_AUTO
77144+ help
77145+ If you say Y here, unprivileged users will not be able to ptrace unreadable
77146+ binaries. This option is useful in environments that
77147+ remove the read bits (e.g. file mode 4711) from suid binaries to
77148+ prevent infoleaking of their contents. This option adds
77149+ consistency to the use of that file mode, as the binary could normally
77150+ be read out when run without privileges while ptracing.
77151+
77152+ If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
77153+ is created.
77154+
77155+config GRKERNSEC_SETXID
77156+ bool "Enforce consistent multithreaded privileges"
77157+ default y if GRKERNSEC_CONFIG_AUTO
77158+ depends on (X86 || SPARC64 || PPC || ARM || MIPS)
77159+ help
77160+ If you say Y here, a change from a root uid to a non-root uid
77161+ in a multithreaded application will cause the resulting uids,
77162+ gids, supplementary groups, and capabilities in that thread
77163+ to be propagated to the other threads of the process. In most
77164+ cases this is unnecessary, as glibc will emulate this behavior
77165+ on behalf of the application. Other libcs do not act in the
77166+ same way, allowing the other threads of the process to continue
77167+ running with root privileges. If the sysctl option is enabled,
77168+ a sysctl option with name "consistent_setxid" is created.
77169+
77170+config GRKERNSEC_HARDEN_IPC
77171+ bool "Disallow access to overly-permissive IPC objects"
77172+ default y if GRKERNSEC_CONFIG_AUTO
77173+ depends on SYSVIPC
77174+ help
77175+ If you say Y here, access to overly-permissive IPC objects (shared
77176+ memory, message queues, and semaphores) will be denied for processes
77177+ given the following criteria beyond normal permission checks:
77178+ 1) If the IPC object is world-accessible and the euid doesn't match
77179+ that of the creator or current uid for the IPC object
77180+ 2) If the IPC object is group-accessible and the egid doesn't
77181+ match that of the creator or current gid for the IPC object
77182+ It's a common error to grant too much permission to these objects,
77183+ with impact ranging from denial of service and information leaking to
77184+ privilege escalation. This feature was developed in response to
77185+ research by Tim Brown:
77186+ http://labs.portcullis.co.uk/whitepapers/memory-squatting-attacks-on-system-v-shared-memory/
77187+ who found hundreds of such insecure usages. Processes with
77188+ CAP_IPC_OWNER are still permitted to access these IPC objects.
77189+ If the sysctl option is enabled, a sysctl option with name
77190+ "harden_ipc" is created.
77191+
77192+config GRKERNSEC_TPE
77193+ bool "Trusted Path Execution (TPE)"
77194+ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
77195+ help
77196+ If you say Y here, you will be able to choose a gid to add to the
77197+ supplementary groups of users you want to mark as "untrusted."
77198+ These users will not be able to execute any files that are not in
77199+ root-owned directories writable only by root. If the sysctl option
77200+ is enabled, a sysctl option with name "tpe" is created.
77201+
77202+config GRKERNSEC_TPE_ALL
77203+ bool "Partially restrict all non-root users"
77204+ depends on GRKERNSEC_TPE
77205+ help
77206+ If you say Y here, all non-root users will be covered under
77207+ a weaker TPE restriction. This is separate from, and in addition to,
77208+ the main TPE options that you have selected elsewhere. Thus, if a
77209+ "trusted" GID is chosen, this restriction applies to even that GID.
77210+ Under this restriction, all non-root users will only be allowed to
77211+ execute files in directories they own that are not group or
77212+ world-writable, or in directories owned by root and writable only by
77213+ root. If the sysctl option is enabled, a sysctl option with name
77214+ "tpe_restrict_all" is created.
77215+
77216+config GRKERNSEC_TPE_INVERT
77217+ bool "Invert GID option"
77218+ depends on GRKERNSEC_TPE
77219+ help
77220+ If you say Y here, the group you specify in the TPE configuration will
77221+ decide what group TPE restrictions will be *disabled* for. This
77222+ option is useful if you want TPE restrictions to be applied to most
77223+ users on the system. If the sysctl option is enabled, a sysctl option
77224+ with name "tpe_invert" is created. Unlike other sysctl options, this
77225+ entry will default to on for backward-compatibility.
77226+
77227+config GRKERNSEC_TPE_GID
77228+ int
77229+ default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
77230+ default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
77231+
77232+config GRKERNSEC_TPE_UNTRUSTED_GID
77233+ int "GID for TPE-untrusted users"
77234+ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
77235+ default 1005
77236+ help
77237+ Setting this GID determines what group TPE restrictions will be
77238+ *enabled* for. If the sysctl option is enabled, a sysctl option
77239+ with name "tpe_gid" is created.
77240+
77241+config GRKERNSEC_TPE_TRUSTED_GID
77242+ int "GID for TPE-trusted users"
77243+ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
77244+ default 1005
77245+ help
77246+ Setting this GID determines what group TPE restrictions will be
77247+ *disabled* for. If the sysctl option is enabled, a sysctl option
77248+ with name "tpe_gid" is created.
77249+
77250+endmenu
77251+menu "Network Protections"
77252+depends on GRKERNSEC
77253+
77254+config GRKERNSEC_BLACKHOLE
77255+ bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
77256+ default y if GRKERNSEC_CONFIG_AUTO
77257+ depends on NET
77258+ help
77259+ If you say Y here, neither TCP resets nor ICMP
77260+ destination-unreachable packets will be sent in response to packets
77261+ sent to ports for which no associated listening process exists.
77262+ It will also prevent the sending of ICMP protocol unreachable packets
77263+ in response to packets with unknown protocols.
77264+ This feature supports both IPV4 and IPV6 and exempts the
77265+ loopback interface from blackholing. Enabling this feature
77266+ makes a host more resilient to DoS attacks and reduces network
77267+ visibility against scanners.
77268+
77269+ The blackhole feature as-implemented is equivalent to the FreeBSD
77270+ blackhole feature, as it prevents RST responses to all packets, not
77271+ just SYNs. Under most application behavior this causes no
77272+ problems, but applications (like haproxy) may not close certain
77273+ connections in a way that cleanly terminates them on the remote
77274+ end, leaving the remote host in LAST_ACK state. Because of this
77275+ side-effect and to prevent intentional LAST_ACK DoSes, this
77276+ feature also adds automatic mitigation against such attacks.
77277+ The mitigation drastically reduces the amount of time a socket
77278+ can spend in LAST_ACK state. If you're using haproxy and not
77279+ all servers it connects to have this option enabled, consider
77280+ disabling this feature on the haproxy host.
77281+
77282+ If the sysctl option is enabled, two sysctl options with names
77283+ "ip_blackhole" and "lastack_retries" will be created.
77284+ While "ip_blackhole" takes the standard zero/non-zero on/off
77285+ toggle, "lastack_retries" uses the same kinds of values as
77286+ "tcp_retries1" and "tcp_retries2". The default value of 4
77287+ prevents a socket from lasting more than 45 seconds in LAST_ACK
77288+ state.
77289+
77290+config GRKERNSEC_NO_SIMULT_CONNECT
77291+ bool "Disable TCP Simultaneous Connect"
77292+ default y if GRKERNSEC_CONFIG_AUTO
77293+ depends on NET
77294+ help
77295+ If you say Y here, a feature by Willy Tarreau will be enabled that
77296+ removes a weakness in Linux's strict implementation of TCP that
77297+ allows two clients to connect to each other without either entering
77298+ a listening state. The weakness allows an attacker to easily prevent
77299+ a client from connecting to a known server provided the source port
77300+ for the connection is guessed correctly.
77301+
77302+ As the weakness could be used to prevent an antivirus or IPS from
77303+ fetching updates, or prevent an SSL gateway from fetching a CRL,
77304+ it should be eliminated by enabling this option. Though Linux is
77305+ one of few operating systems supporting simultaneous connect, it
77306+ has no legitimate use in practice and is rarely supported by firewalls.
77307+
77308+config GRKERNSEC_SOCKET
77309+ bool "Socket restrictions"
77310+ depends on NET
77311+ help
77312+ If you say Y here, you will be able to choose from several options.
77313+ If you assign a GID on your system and add it to the supplementary
77314+ groups of users you want to restrict socket access to, this patch
77315+ will perform up to three things, based on the option(s) you choose.
77316+
77317+config GRKERNSEC_SOCKET_ALL
77318+ bool "Deny any sockets to group"
77319+ depends on GRKERNSEC_SOCKET
77320+ help
77321+ If you say Y here, you will be able to choose a GID of whose users will
77322+ be unable to connect to other hosts from your machine or run server
77323+ applications from your machine. If the sysctl option is enabled, a
77324+ sysctl option with name "socket_all" is created.
77325+
77326+config GRKERNSEC_SOCKET_ALL_GID
77327+ int "GID to deny all sockets for"
77328+ depends on GRKERNSEC_SOCKET_ALL
77329+ default 1004
77330+ help
77331+ Here you can choose the GID to disable socket access for. Remember to
77332+ add the users you want socket access disabled for to the GID
77333+ specified here. If the sysctl option is enabled, a sysctl option
77334+ with name "socket_all_gid" is created.
77335+
77336+config GRKERNSEC_SOCKET_CLIENT
77337+ bool "Deny client sockets to group"
77338+ depends on GRKERNSEC_SOCKET
77339+ help
77340+ If you say Y here, you will be able to choose a GID of whose users will
77341+ be unable to connect to other hosts from your machine, but will be
77342+ able to run servers. If this option is enabled, all users in the group
77343+ you specify will have to use passive mode when initiating ftp transfers
77344+ from the shell on your machine. If the sysctl option is enabled, a
77345+ sysctl option with name "socket_client" is created.
77346+
77347+config GRKERNSEC_SOCKET_CLIENT_GID
77348+ int "GID to deny client sockets for"
77349+ depends on GRKERNSEC_SOCKET_CLIENT
77350+ default 1003
77351+ help
77352+ Here you can choose the GID to disable client socket access for.
77353+ Remember to add the users you want client socket access disabled for to
77354+ the GID specified here. If the sysctl option is enabled, a sysctl
77355+ option with name "socket_client_gid" is created.
77356+
77357+config GRKERNSEC_SOCKET_SERVER
77358+ bool "Deny server sockets to group"
77359+ depends on GRKERNSEC_SOCKET
77360+ help
77361+ If you say Y here, you will be able to choose a GID of whose users will
77362+ be unable to run server applications from your machine. If the sysctl
77363+ option is enabled, a sysctl option with name "socket_server" is created.
77364+
77365+config GRKERNSEC_SOCKET_SERVER_GID
77366+ int "GID to deny server sockets for"
77367+ depends on GRKERNSEC_SOCKET_SERVER
77368+ default 1002
77369+ help
77370+ Here you can choose the GID to disable server socket access for.
77371+ Remember to add the users you want server socket access disabled for to
77372+ the GID specified here. If the sysctl option is enabled, a sysctl
77373+ option with name "socket_server_gid" is created.
77374+
77375+endmenu
77376+
77377+menu "Physical Protections"
77378+depends on GRKERNSEC
77379+
77380+config GRKERNSEC_DENYUSB
77381+ bool "Deny new USB connections after toggle"
77382+ default y if GRKERNSEC_CONFIG_AUTO
77383+ depends on SYSCTL && USB_SUPPORT
77384+ help
77385+ If you say Y here, a new sysctl option with name "deny_new_usb"
77386+ will be created. Setting its value to 1 will prevent any new
77387+ USB devices from being recognized by the OS. Any attempted USB
77388+ device insertion will be logged. This option is intended to be
77389+ used against custom USB devices designed to exploit vulnerabilities
77390+ in various USB device drivers.
77391+
77392+ For greatest effectiveness, this sysctl should be set after any
77393+ relevant init scripts. This option is safe to enable in distros
77394+ as each user can choose whether or not to toggle the sysctl.
77395+
77396+config GRKERNSEC_DENYUSB_FORCE
77397+ bool "Reject all USB devices not connected at boot"
77398+ select USB
77399+ depends on GRKERNSEC_DENYUSB
77400+ help
77401+ If you say Y here, a variant of GRKERNSEC_DENYUSB will be enabled
77402+ that doesn't involve a sysctl entry. This option should only be
77403+ enabled if you're sure you want to deny all new USB connections
77404+ at runtime and don't want to modify init scripts. This should not
77405+ be enabled by distros. It forces the core USB code to be built
77406+ into the kernel image so that all devices connected at boot time
77407+ can be recognized and new USB device connections can be prevented
77408+ prior to init running.
77409+
77410+endmenu
77411+
77412+menu "Sysctl Support"
77413+depends on GRKERNSEC && SYSCTL
77414+
77415+config GRKERNSEC_SYSCTL
77416+ bool "Sysctl support"
77417+ default y if GRKERNSEC_CONFIG_AUTO
77418+ help
77419+ If you say Y here, you will be able to change the options that
77420+ grsecurity runs with at bootup, without having to recompile your
77421+ kernel. You can echo values to files in /proc/sys/kernel/grsecurity
77422+ to enable (1) or disable (0) various features. All the sysctl entries
77423+ are mutable until the "grsec_lock" entry is set to a non-zero value.
77424+ All features enabled in the kernel configuration are disabled at boot
77425+ if you do not say Y to the "Turn on features by default" option.
77426+ All options should be set at startup, and the grsec_lock entry should
77427+ be set to a non-zero value after all the options are set.
77428+ *THIS IS EXTREMELY IMPORTANT*
77429+
77430+config GRKERNSEC_SYSCTL_DISTRO
77431+ bool "Extra sysctl support for distro makers (READ HELP)"
77432+ depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
77433+ help
77434+ If you say Y here, additional sysctl options will be created
77435+ for features that affect processes running as root. Therefore,
77436+ it is critical when using this option that the grsec_lock entry be
77437+ enabled after boot. Only distros with prebuilt kernel packages
77438+ with this option enabled that can ensure grsec_lock is enabled
77439+ after boot should use this option.
77440+ *Failure to set grsec_lock after boot makes all grsec features
77441+ this option covers useless*
77442+
77443+ Currently this option creates the following sysctl entries:
77444+ "Disable Privileged I/O": "disable_priv_io"
77445+
77446+config GRKERNSEC_SYSCTL_ON
77447+ bool "Turn on features by default"
77448+ default y if GRKERNSEC_CONFIG_AUTO
77449+ depends on GRKERNSEC_SYSCTL
77450+ help
77451+ If you say Y here, instead of having all features enabled in the
77452+ kernel configuration disabled at boot time, the features will be
77453+ enabled at boot time. It is recommended you say Y here unless
77454+ there is some reason you would want all sysctl-tunable features to
77455+ be disabled by default. As mentioned elsewhere, it is important
77456+ to enable the grsec_lock entry once you have finished modifying
77457+ the sysctl entries.
77458+
77459+endmenu
77460+menu "Logging Options"
77461+depends on GRKERNSEC
77462+
77463+config GRKERNSEC_FLOODTIME
77464+ int "Seconds in between log messages (minimum)"
77465+ default 10
77466+ help
77467+ This option allows you to enforce the number of seconds between
77468+ grsecurity log messages. The default should be suitable for most
77469+ people, however, if you choose to change it, choose a value small enough
77470+ to allow informative logs to be produced, but large enough to
77471+ prevent flooding.
77472+
77473+ Setting both this value and GRKERNSEC_FLOODBURST to 0 will disable
77474+ any rate limiting on grsecurity log messages.
77475+
77476+config GRKERNSEC_FLOODBURST
77477+ int "Number of messages in a burst (maximum)"
77478+ default 6
77479+ help
77480+ This option allows you to choose the maximum number of messages allowed
77481+ within the flood time interval you chose in a separate option. The
77482+ default should be suitable for most people, however if you find that
77483+ many of your logs are being interpreted as flooding, you may want to
77484+ raise this value.
77485+
77486+ Setting both this value and GRKERNSEC_FLOODTIME to 0 will disable
77487+ any rate limiting on grsecurity log messages.
77488+
77489+endmenu
77490diff --git a/grsecurity/Makefile b/grsecurity/Makefile
77491new file mode 100644
77492index 0000000..30ababb
77493--- /dev/null
77494+++ b/grsecurity/Makefile
77495@@ -0,0 +1,54 @@
77496+# grsecurity – access control and security hardening for Linux
77497+# All code in this directory and various hooks located throughout the Linux kernel are
77498+# Copyright (C) 2001-2014 Bradley Spengler, Open Source Security, Inc.
77499+# http://www.grsecurity.net spender@grsecurity.net
77500+#
77501+# This program is free software; you can redistribute it and/or
77502+# modify it under the terms of the GNU General Public License version 2
77503+# as published by the Free Software Foundation.
77504+#
77505+# This program is distributed in the hope that it will be useful,
77506+# but WITHOUT ANY WARRANTY; without even the implied warranty of
77507+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
77508+# GNU General Public License for more details.
77509+#
77510+# You should have received a copy of the GNU General Public License
77511+# along with this program; if not, write to the Free Software
77512+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
77513+
77514+KBUILD_CFLAGS += -Werror
77515+
77516+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
77517+ grsec_mount.o grsec_sig.o grsec_sysctl.o \
77518+ grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o \
77519+ grsec_usb.o grsec_ipc.o grsec_proc.o
77520+
77521+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
77522+ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
77523+ gracl_learn.o grsec_log.o gracl_policy.o
77524+ifdef CONFIG_COMPAT
77525+obj-$(CONFIG_GRKERNSEC) += gracl_compat.o
77526+endif
77527+
77528+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
77529+
77530+ifdef CONFIG_NET
77531+obj-y += grsec_sock.o
77532+obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
77533+endif
77534+
77535+ifndef CONFIG_GRKERNSEC
77536+obj-y += grsec_disabled.o
77537+endif
77538+
77539+ifdef CONFIG_GRKERNSEC_HIDESYM
77540+extra-y := grsec_hidesym.o
77541+$(obj)/grsec_hidesym.o:
77542+ @-chmod -f 500 /boot
77543+ @-chmod -f 500 /lib/modules
77544+ @-chmod -f 500 /lib64/modules
77545+ @-chmod -f 500 /lib32/modules
77546+ @-chmod -f 700 .
77547+ @-chmod -f 700 $(objtree)
77548+ @echo ' grsec: protected kernel image paths'
77549+endif
77550diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
77551new file mode 100644
77552index 0000000..811af1f
77553--- /dev/null
77554+++ b/grsecurity/gracl.c
77555@@ -0,0 +1,2749 @@
77556+#include <linux/kernel.h>
77557+#include <linux/module.h>
77558+#include <linux/sched.h>
77559+#include <linux/mm.h>
77560+#include <linux/file.h>
77561+#include <linux/fs.h>
77562+#include <linux/namei.h>
77563+#include <linux/mount.h>
77564+#include <linux/tty.h>
77565+#include <linux/proc_fs.h>
77566+#include <linux/lglock.h>
77567+#include <linux/slab.h>
77568+#include <linux/vmalloc.h>
77569+#include <linux/types.h>
77570+#include <linux/sysctl.h>
77571+#include <linux/netdevice.h>
77572+#include <linux/ptrace.h>
77573+#include <linux/gracl.h>
77574+#include <linux/gralloc.h>
77575+#include <linux/security.h>
77576+#include <linux/grinternal.h>
77577+#include <linux/pid_namespace.h>
77578+#include <linux/stop_machine.h>
77579+#include <linux/fdtable.h>
77580+#include <linux/percpu.h>
77581+#include <linux/lglock.h>
77582+#include <linux/hugetlb.h>
77583+#include <linux/posix-timers.h>
77584+#include <linux/prefetch.h>
77585+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77586+#include <linux/magic.h>
77587+#include <linux/pagemap.h>
77588+#include "../fs/btrfs/async-thread.h"
77589+#include "../fs/btrfs/ctree.h"
77590+#include "../fs/btrfs/btrfs_inode.h"
77591+#endif
77592+#include "../fs/mount.h"
77593+
77594+#include <asm/uaccess.h>
77595+#include <asm/errno.h>
77596+#include <asm/mman.h>
77597+
77598+#define FOR_EACH_ROLE_START(role) \
77599+ role = running_polstate.role_list; \
77600+ while (role) {
77601+
77602+#define FOR_EACH_ROLE_END(role) \
77603+ role = role->prev; \
77604+ }
77605+
77606+extern struct path gr_real_root;
77607+
77608+static struct gr_policy_state running_polstate;
77609+struct gr_policy_state *polstate = &running_polstate;
77610+extern struct gr_alloc_state *current_alloc_state;
77611+
77612+extern char *gr_shared_page[4];
77613+DEFINE_RWLOCK(gr_inode_lock);
77614+
77615+static unsigned int gr_status __read_only = GR_STATUS_INIT;
77616+
77617+#ifdef CONFIG_NET
77618+extern struct vfsmount *sock_mnt;
77619+#endif
77620+
77621+extern struct vfsmount *pipe_mnt;
77622+extern struct vfsmount *shm_mnt;
77623+
77624+#ifdef CONFIG_HUGETLBFS
77625+extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
77626+#endif
77627+
77628+extern u16 acl_sp_role_value;
77629+extern struct acl_object_label *fakefs_obj_rw;
77630+extern struct acl_object_label *fakefs_obj_rwx;
77631+
77632+int gr_acl_is_enabled(void)
77633+{
77634+ return (gr_status & GR_READY);
77635+}
77636+
77637+void gr_enable_rbac_system(void)
77638+{
77639+ pax_open_kernel();
77640+ gr_status |= GR_READY;
77641+ pax_close_kernel();
77642+}
77643+
77644+int gr_rbac_disable(void *unused)
77645+{
77646+ pax_open_kernel();
77647+ gr_status &= ~GR_READY;
77648+ pax_close_kernel();
77649+
77650+ return 0;
77651+}
77652+
77653+static inline dev_t __get_dev(const struct dentry *dentry)
77654+{
77655+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77656+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
77657+ return BTRFS_I(dentry->d_inode)->root->anon_dev;
77658+ else
77659+#endif
77660+ return dentry->d_sb->s_dev;
77661+}
77662+
77663+static inline u64 __get_ino(const struct dentry *dentry)
77664+{
77665+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77666+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
77667+ return btrfs_ino(dentry->d_inode);
77668+ else
77669+#endif
77670+ return dentry->d_inode->i_ino;
77671+}
77672+
77673+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
77674+{
77675+ return __get_dev(dentry);
77676+}
77677+
77678+u64 gr_get_ino_from_dentry(struct dentry *dentry)
77679+{
77680+ return __get_ino(dentry);
77681+}
77682+
77683+static char gr_task_roletype_to_char(struct task_struct *task)
77684+{
77685+ switch (task->role->roletype &
77686+ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
77687+ GR_ROLE_SPECIAL)) {
77688+ case GR_ROLE_DEFAULT:
77689+ return 'D';
77690+ case GR_ROLE_USER:
77691+ return 'U';
77692+ case GR_ROLE_GROUP:
77693+ return 'G';
77694+ case GR_ROLE_SPECIAL:
77695+ return 'S';
77696+ }
77697+
77698+ return 'X';
77699+}
77700+
77701+char gr_roletype_to_char(void)
77702+{
77703+ return gr_task_roletype_to_char(current);
77704+}
77705+
77706+int
77707+gr_acl_tpe_check(void)
77708+{
77709+ if (unlikely(!(gr_status & GR_READY)))
77710+ return 0;
77711+ if (current->role->roletype & GR_ROLE_TPE)
77712+ return 1;
77713+ else
77714+ return 0;
77715+}
77716+
77717+int
77718+gr_handle_rawio(const struct inode *inode)
77719+{
77720+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
77721+ if (inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR)) &&
77722+ grsec_enable_chroot_caps && proc_is_chrooted(current) &&
77723+ !capable(CAP_SYS_RAWIO))
77724+ return 1;
77725+#endif
77726+ return 0;
77727+}
77728+
77729+int
77730+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
77731+{
77732+ if (likely(lena != lenb))
77733+ return 0;
77734+
77735+ return !memcmp(a, b, lena);
77736+}
77737+
77738+static int prepend(char **buffer, int *buflen, const char *str, int namelen)
77739+{
77740+ *buflen -= namelen;
77741+ if (*buflen < 0)
77742+ return -ENAMETOOLONG;
77743+ *buffer -= namelen;
77744+ memcpy(*buffer, str, namelen);
77745+ return 0;
77746+}
77747+
77748+static int prepend_name(char **buffer, int *buflen, struct qstr *name)
77749+{
77750+ return prepend(buffer, buflen, name->name, name->len);
77751+}
77752+
77753+static int prepend_path(const struct path *path, struct path *root,
77754+ char **buffer, int *buflen)
77755+{
77756+ struct dentry *dentry = path->dentry;
77757+ struct vfsmount *vfsmnt = path->mnt;
77758+ struct mount *mnt = real_mount(vfsmnt);
77759+ bool slash = false;
77760+ int error = 0;
77761+
77762+ while (dentry != root->dentry || vfsmnt != root->mnt) {
77763+ struct dentry * parent;
77764+
77765+ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
77766+ /* Global root? */
77767+ if (!mnt_has_parent(mnt)) {
77768+ goto out;
77769+ }
77770+ dentry = mnt->mnt_mountpoint;
77771+ mnt = mnt->mnt_parent;
77772+ vfsmnt = &mnt->mnt;
77773+ continue;
77774+ }
77775+ parent = dentry->d_parent;
77776+ prefetch(parent);
77777+ spin_lock(&dentry->d_lock);
77778+ error = prepend_name(buffer, buflen, &dentry->d_name);
77779+ spin_unlock(&dentry->d_lock);
77780+ if (!error)
77781+ error = prepend(buffer, buflen, "/", 1);
77782+ if (error)
77783+ break;
77784+
77785+ slash = true;
77786+ dentry = parent;
77787+ }
77788+
77789+out:
77790+ if (!error && !slash)
77791+ error = prepend(buffer, buflen, "/", 1);
77792+
77793+ return error;
77794+}
77795+
77796+/* this must be called with mount_lock and rename_lock held */
77797+
77798+static char *__our_d_path(const struct path *path, struct path *root,
77799+ char *buf, int buflen)
77800+{
77801+ char *res = buf + buflen;
77802+ int error;
77803+
77804+ prepend(&res, &buflen, "\0", 1);
77805+ error = prepend_path(path, root, &res, &buflen);
77806+ if (error)
77807+ return ERR_PTR(error);
77808+
77809+ return res;
77810+}
77811+
77812+static char *
77813+gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
77814+{
77815+ char *retval;
77816+
77817+ retval = __our_d_path(path, root, buf, buflen);
77818+ if (unlikely(IS_ERR(retval)))
77819+ retval = strcpy(buf, "<path too long>");
77820+ else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
77821+ retval[1] = '\0';
77822+
77823+ return retval;
77824+}
77825+
77826+static char *
77827+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
77828+ char *buf, int buflen)
77829+{
77830+ struct path path;
77831+ char *res;
77832+
77833+ path.dentry = (struct dentry *)dentry;
77834+ path.mnt = (struct vfsmount *)vfsmnt;
77835+
77836+ /* we can use gr_real_root.dentry, gr_real_root.mnt, because this is only called
77837+ by the RBAC system */
77838+ res = gen_full_path(&path, &gr_real_root, buf, buflen);
77839+
77840+ return res;
77841+}
77842+
77843+static char *
77844+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
77845+ char *buf, int buflen)
77846+{
77847+ char *res;
77848+ struct path path;
77849+ struct path root;
77850+ struct task_struct *reaper = init_pid_ns.child_reaper;
77851+
77852+ path.dentry = (struct dentry *)dentry;
77853+ path.mnt = (struct vfsmount *)vfsmnt;
77854+
77855+ /* we can't use gr_real_root.dentry, gr_real_root.mnt, because they belong only to the RBAC system */
77856+ get_fs_root(reaper->fs, &root);
77857+
77858+ read_seqlock_excl(&mount_lock);
77859+ write_seqlock(&rename_lock);
77860+ res = gen_full_path(&path, &root, buf, buflen);
77861+ write_sequnlock(&rename_lock);
77862+ read_sequnlock_excl(&mount_lock);
77863+
77864+ path_put(&root);
77865+ return res;
77866+}
77867+
77868+char *
77869+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
77870+{
77871+ char *ret;
77872+ read_seqlock_excl(&mount_lock);
77873+ write_seqlock(&rename_lock);
77874+ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
77875+ PAGE_SIZE);
77876+ write_sequnlock(&rename_lock);
77877+ read_sequnlock_excl(&mount_lock);
77878+ return ret;
77879+}
77880+
77881+static char *
77882+gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
77883+{
77884+ char *ret;
77885+ char *buf;
77886+ int buflen;
77887+
77888+ read_seqlock_excl(&mount_lock);
77889+ write_seqlock(&rename_lock);
77890+ buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
77891+ ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
77892+ buflen = (int)(ret - buf);
77893+ if (buflen >= 5)
77894+ prepend(&ret, &buflen, "/proc", 5);
77895+ else
77896+ ret = strcpy(buf, "<path too long>");
77897+ write_sequnlock(&rename_lock);
77898+ read_sequnlock_excl(&mount_lock);
77899+ return ret;
77900+}
77901+
77902+char *
77903+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
77904+{
77905+ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
77906+ PAGE_SIZE);
77907+}
77908+
77909+char *
77910+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
77911+{
77912+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
77913+ PAGE_SIZE);
77914+}
77915+
77916+char *
77917+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
77918+{
77919+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
77920+ PAGE_SIZE);
77921+}
77922+
77923+char *
77924+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
77925+{
77926+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
77927+ PAGE_SIZE);
77928+}
77929+
77930+char *
77931+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
77932+{
77933+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
77934+ PAGE_SIZE);
77935+}
77936+
77937+__u32
77938+to_gr_audit(const __u32 reqmode)
77939+{
77940+ /* masks off auditable permission flags, then shifts them to create
77941+ auditing flags, and adds the special case of append auditing if
77942+ we're requesting write */
77943+ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
77944+}
77945+
77946+struct acl_role_label *
77947+__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid,
77948+ const gid_t gid)
77949+{
77950+ unsigned int index = gr_rhash(uid, GR_ROLE_USER, state->acl_role_set.r_size);
77951+ struct acl_role_label *match;
77952+ struct role_allowed_ip *ipp;
77953+ unsigned int x;
77954+ u32 curr_ip = task->signal->saved_ip;
77955+
77956+ match = state->acl_role_set.r_hash[index];
77957+
77958+ while (match) {
77959+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
77960+ for (x = 0; x < match->domain_child_num; x++) {
77961+ if (match->domain_children[x] == uid)
77962+ goto found;
77963+ }
77964+ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
77965+ break;
77966+ match = match->next;
77967+ }
77968+found:
77969+ if (match == NULL) {
77970+ try_group:
77971+ index = gr_rhash(gid, GR_ROLE_GROUP, state->acl_role_set.r_size);
77972+ match = state->acl_role_set.r_hash[index];
77973+
77974+ while (match) {
77975+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
77976+ for (x = 0; x < match->domain_child_num; x++) {
77977+ if (match->domain_children[x] == gid)
77978+ goto found2;
77979+ }
77980+ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
77981+ break;
77982+ match = match->next;
77983+ }
77984+found2:
77985+ if (match == NULL)
77986+ match = state->default_role;
77987+ if (match->allowed_ips == NULL)
77988+ return match;
77989+ else {
77990+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
77991+ if (likely
77992+ ((ntohl(curr_ip) & ipp->netmask) ==
77993+ (ntohl(ipp->addr) & ipp->netmask)))
77994+ return match;
77995+ }
77996+ match = state->default_role;
77997+ }
77998+ } else if (match->allowed_ips == NULL) {
77999+ return match;
78000+ } else {
78001+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
78002+ if (likely
78003+ ((ntohl(curr_ip) & ipp->netmask) ==
78004+ (ntohl(ipp->addr) & ipp->netmask)))
78005+ return match;
78006+ }
78007+ goto try_group;
78008+ }
78009+
78010+ return match;
78011+}
78012+
78013+static struct acl_role_label *
78014+lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
78015+ const gid_t gid)
78016+{
78017+ return __lookup_acl_role_label(&running_polstate, task, uid, gid);
78018+}
78019+
78020+struct acl_subject_label *
78021+lookup_acl_subj_label(const u64 ino, const dev_t dev,
78022+ const struct acl_role_label *role)
78023+{
78024+ unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
78025+ struct acl_subject_label *match;
78026+
78027+ match = role->subj_hash[index];
78028+
78029+ while (match && (match->inode != ino || match->device != dev ||
78030+ (match->mode & GR_DELETED))) {
78031+ match = match->next;
78032+ }
78033+
78034+ if (match && !(match->mode & GR_DELETED))
78035+ return match;
78036+ else
78037+ return NULL;
78038+}
78039+
78040+struct acl_subject_label *
78041+lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev,
78042+ const struct acl_role_label *role)
78043+{
78044+ unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
78045+ struct acl_subject_label *match;
78046+
78047+ match = role->subj_hash[index];
78048+
78049+ while (match && (match->inode != ino || match->device != dev ||
78050+ !(match->mode & GR_DELETED))) {
78051+ match = match->next;
78052+ }
78053+
78054+ if (match && (match->mode & GR_DELETED))
78055+ return match;
78056+ else
78057+ return NULL;
78058+}
78059+
78060+static struct acl_object_label *
78061+lookup_acl_obj_label(const u64 ino, const dev_t dev,
78062+ const struct acl_subject_label *subj)
78063+{
78064+ unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
78065+ struct acl_object_label *match;
78066+
78067+ match = subj->obj_hash[index];
78068+
78069+ while (match && (match->inode != ino || match->device != dev ||
78070+ (match->mode & GR_DELETED))) {
78071+ match = match->next;
78072+ }
78073+
78074+ if (match && !(match->mode & GR_DELETED))
78075+ return match;
78076+ else
78077+ return NULL;
78078+}
78079+
78080+static struct acl_object_label *
78081+lookup_acl_obj_label_create(const u64 ino, const dev_t dev,
78082+ const struct acl_subject_label *subj)
78083+{
78084+ unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
78085+ struct acl_object_label *match;
78086+
78087+ match = subj->obj_hash[index];
78088+
78089+ while (match && (match->inode != ino || match->device != dev ||
78090+ !(match->mode & GR_DELETED))) {
78091+ match = match->next;
78092+ }
78093+
78094+ if (match && (match->mode & GR_DELETED))
78095+ return match;
78096+
78097+ match = subj->obj_hash[index];
78098+
78099+ while (match && (match->inode != ino || match->device != dev ||
78100+ (match->mode & GR_DELETED))) {
78101+ match = match->next;
78102+ }
78103+
78104+ if (match && !(match->mode & GR_DELETED))
78105+ return match;
78106+ else
78107+ return NULL;
78108+}
78109+
78110+struct name_entry *
78111+__lookup_name_entry(const struct gr_policy_state *state, const char *name)
78112+{
78113+ unsigned int len = strlen(name);
78114+ unsigned int key = full_name_hash(name, len);
78115+ unsigned int index = key % state->name_set.n_size;
78116+ struct name_entry *match;
78117+
78118+ match = state->name_set.n_hash[index];
78119+
78120+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
78121+ match = match->next;
78122+
78123+ return match;
78124+}
78125+
78126+static struct name_entry *
78127+lookup_name_entry(const char *name)
78128+{
78129+ return __lookup_name_entry(&running_polstate, name);
78130+}
78131+
78132+static struct name_entry *
78133+lookup_name_entry_create(const char *name)
78134+{
78135+ unsigned int len = strlen(name);
78136+ unsigned int key = full_name_hash(name, len);
78137+ unsigned int index = key % running_polstate.name_set.n_size;
78138+ struct name_entry *match;
78139+
78140+ match = running_polstate.name_set.n_hash[index];
78141+
78142+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
78143+ !match->deleted))
78144+ match = match->next;
78145+
78146+ if (match && match->deleted)
78147+ return match;
78148+
78149+ match = running_polstate.name_set.n_hash[index];
78150+
78151+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
78152+ match->deleted))
78153+ match = match->next;
78154+
78155+ if (match && !match->deleted)
78156+ return match;
78157+ else
78158+ return NULL;
78159+}
78160+
78161+static struct inodev_entry *
78162+lookup_inodev_entry(const u64 ino, const dev_t dev)
78163+{
78164+ unsigned int index = gr_fhash(ino, dev, running_polstate.inodev_set.i_size);
78165+ struct inodev_entry *match;
78166+
78167+ match = running_polstate.inodev_set.i_hash[index];
78168+
78169+ while (match && (match->nentry->inode != ino || match->nentry->device != dev))
78170+ match = match->next;
78171+
78172+ return match;
78173+}
78174+
78175+void
78176+__insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry)
78177+{
78178+ unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
78179+ state->inodev_set.i_size);
78180+ struct inodev_entry **curr;
78181+
78182+ entry->prev = NULL;
78183+
78184+ curr = &state->inodev_set.i_hash[index];
78185+ if (*curr != NULL)
78186+ (*curr)->prev = entry;
78187+
78188+ entry->next = *curr;
78189+ *curr = entry;
78190+
78191+ return;
78192+}
78193+
78194+static void
78195+insert_inodev_entry(struct inodev_entry *entry)
78196+{
78197+ __insert_inodev_entry(&running_polstate, entry);
78198+}
78199+
78200+void
78201+insert_acl_obj_label(struct acl_object_label *obj,
78202+ struct acl_subject_label *subj)
78203+{
78204+ unsigned int index =
78205+ gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
78206+ struct acl_object_label **curr;
78207+
78208+ obj->prev = NULL;
78209+
78210+ curr = &subj->obj_hash[index];
78211+ if (*curr != NULL)
78212+ (*curr)->prev = obj;
78213+
78214+ obj->next = *curr;
78215+ *curr = obj;
78216+
78217+ return;
78218+}
78219+
78220+void
78221+insert_acl_subj_label(struct acl_subject_label *obj,
78222+ struct acl_role_label *role)
78223+{
78224+ unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
78225+ struct acl_subject_label **curr;
78226+
78227+ obj->prev = NULL;
78228+
78229+ curr = &role->subj_hash[index];
78230+ if (*curr != NULL)
78231+ (*curr)->prev = obj;
78232+
78233+ obj->next = *curr;
78234+ *curr = obj;
78235+
78236+ return;
78237+}
78238+
78239+/* derived from glibc fnmatch() 0: match, 1: no match*/
78240+
78241+static int
78242+glob_match(const char *p, const char *n)
78243+{
78244+ char c;
78245+
78246+ while ((c = *p++) != '\0') {
78247+ switch (c) {
78248+ case '?':
78249+ if (*n == '\0')
78250+ return 1;
78251+ else if (*n == '/')
78252+ return 1;
78253+ break;
78254+ case '\\':
78255+ if (*n != c)
78256+ return 1;
78257+ break;
78258+ case '*':
78259+ for (c = *p++; c == '?' || c == '*'; c = *p++) {
78260+ if (*n == '/')
78261+ return 1;
78262+ else if (c == '?') {
78263+ if (*n == '\0')
78264+ return 1;
78265+ else
78266+ ++n;
78267+ }
78268+ }
78269+ if (c == '\0') {
78270+ return 0;
78271+ } else {
78272+ const char *endp;
78273+
78274+ if ((endp = strchr(n, '/')) == NULL)
78275+ endp = n + strlen(n);
78276+
78277+ if (c == '[') {
78278+ for (--p; n < endp; ++n)
78279+ if (!glob_match(p, n))
78280+ return 0;
78281+ } else if (c == '/') {
78282+ while (*n != '\0' && *n != '/')
78283+ ++n;
78284+ if (*n == '/' && !glob_match(p, n + 1))
78285+ return 0;
78286+ } else {
78287+ for (--p; n < endp; ++n)
78288+ if (*n == c && !glob_match(p, n))
78289+ return 0;
78290+ }
78291+
78292+ return 1;
78293+ }
78294+ case '[':
78295+ {
78296+ int not;
78297+ char cold;
78298+
78299+ if (*n == '\0' || *n == '/')
78300+ return 1;
78301+
78302+ not = (*p == '!' || *p == '^');
78303+ if (not)
78304+ ++p;
78305+
78306+ c = *p++;
78307+ for (;;) {
78308+ unsigned char fn = (unsigned char)*n;
78309+
78310+ if (c == '\0')
78311+ return 1;
78312+ else {
78313+ if (c == fn)
78314+ goto matched;
78315+ cold = c;
78316+ c = *p++;
78317+
78318+ if (c == '-' && *p != ']') {
78319+ unsigned char cend = *p++;
78320+
78321+ if (cend == '\0')
78322+ return 1;
78323+
78324+ if (cold <= fn && fn <= cend)
78325+ goto matched;
78326+
78327+ c = *p++;
78328+ }
78329+ }
78330+
78331+ if (c == ']')
78332+ break;
78333+ }
78334+ if (!not)
78335+ return 1;
78336+ break;
78337+ matched:
78338+ while (c != ']') {
78339+ if (c == '\0')
78340+ return 1;
78341+
78342+ c = *p++;
78343+ }
78344+ if (not)
78345+ return 1;
78346+ }
78347+ break;
78348+ default:
78349+ if (c != *n)
78350+ return 1;
78351+ }
78352+
78353+ ++n;
78354+ }
78355+
78356+ if (*n == '\0')
78357+ return 0;
78358+
78359+ if (*n == '/')
78360+ return 0;
78361+
78362+ return 1;
78363+}
78364+
78365+static struct acl_object_label *
78366+chk_glob_label(struct acl_object_label *globbed,
78367+ const struct dentry *dentry, const struct vfsmount *mnt, char **path)
78368+{
78369+ struct acl_object_label *tmp;
78370+
78371+ if (*path == NULL)
78372+ *path = gr_to_filename_nolock(dentry, mnt);
78373+
78374+ tmp = globbed;
78375+
78376+ while (tmp) {
78377+ if (!glob_match(tmp->filename, *path))
78378+ return tmp;
78379+ tmp = tmp->next;
78380+ }
78381+
78382+ return NULL;
78383+}
78384+
78385+static struct acl_object_label *
78386+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
78387+ const u64 curr_ino, const dev_t curr_dev,
78388+ const struct acl_subject_label *subj, char **path, const int checkglob)
78389+{
78390+ struct acl_subject_label *tmpsubj;
78391+ struct acl_object_label *retval;
78392+ struct acl_object_label *retval2;
78393+
78394+ tmpsubj = (struct acl_subject_label *) subj;
78395+ read_lock(&gr_inode_lock);
78396+ do {
78397+ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
78398+ if (retval) {
78399+ if (checkglob && retval->globbed) {
78400+ retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
78401+ if (retval2)
78402+ retval = retval2;
78403+ }
78404+ break;
78405+ }
78406+ } while ((tmpsubj = tmpsubj->parent_subject));
78407+ read_unlock(&gr_inode_lock);
78408+
78409+ return retval;
78410+}
78411+
78412+static struct acl_object_label *
78413+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
78414+ struct dentry *curr_dentry,
78415+ const struct acl_subject_label *subj, char **path, const int checkglob)
78416+{
78417+ int newglob = checkglob;
78418+ u64 inode;
78419+ dev_t device;
78420+
78421+ /* if we aren't checking a subdirectory of the original path yet, don't do glob checking
78422+ as we don't want a / * rule to match instead of the / object
78423+ don't do this for create lookups that call this function though, since they're looking up
78424+ on the parent and thus need globbing checks on all paths
78425+ */
78426+ if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
78427+ newglob = GR_NO_GLOB;
78428+
78429+ spin_lock(&curr_dentry->d_lock);
78430+ inode = __get_ino(curr_dentry);
78431+ device = __get_dev(curr_dentry);
78432+ spin_unlock(&curr_dentry->d_lock);
78433+
78434+ return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
78435+}
78436+
78437+#ifdef CONFIG_HUGETLBFS
78438+static inline bool
78439+is_hugetlbfs_mnt(const struct vfsmount *mnt)
78440+{
78441+ int i;
78442+ for (i = 0; i < HUGE_MAX_HSTATE; i++) {
78443+ if (unlikely(hugetlbfs_vfsmount[i] == mnt))
78444+ return true;
78445+ }
78446+
78447+ return false;
78448+}
78449+#endif
78450+
78451+static struct acl_object_label *
78452+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78453+ const struct acl_subject_label *subj, char *path, const int checkglob)
78454+{
78455+ struct dentry *dentry = (struct dentry *) l_dentry;
78456+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
78457+ struct mount *real_mnt = real_mount(mnt);
78458+ struct acl_object_label *retval;
78459+ struct dentry *parent;
78460+
78461+ read_seqlock_excl(&mount_lock);
78462+ write_seqlock(&rename_lock);
78463+
78464+ if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
78465+#ifdef CONFIG_NET
78466+ mnt == sock_mnt ||
78467+#endif
78468+#ifdef CONFIG_HUGETLBFS
78469+ (is_hugetlbfs_mnt(mnt) && dentry->d_inode->i_nlink == 0) ||
78470+#endif
78471+ /* ignore Eric Biederman */
78472+ IS_PRIVATE(l_dentry->d_inode))) {
78473+ retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
78474+ goto out;
78475+ }
78476+
78477+ for (;;) {
78478+ if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
78479+ break;
78480+
78481+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
78482+ if (!mnt_has_parent(real_mnt))
78483+ break;
78484+
78485+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78486+ if (retval != NULL)
78487+ goto out;
78488+
78489+ dentry = real_mnt->mnt_mountpoint;
78490+ real_mnt = real_mnt->mnt_parent;
78491+ mnt = &real_mnt->mnt;
78492+ continue;
78493+ }
78494+
78495+ parent = dentry->d_parent;
78496+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78497+ if (retval != NULL)
78498+ goto out;
78499+
78500+ dentry = parent;
78501+ }
78502+
78503+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78504+
78505+ /* gr_real_root is pinned so we don't have to hold a reference */
78506+ if (retval == NULL)
78507+ retval = full_lookup(l_dentry, l_mnt, gr_real_root.dentry, subj, &path, checkglob);
78508+out:
78509+ write_sequnlock(&rename_lock);
78510+ read_sequnlock_excl(&mount_lock);
78511+
78512+ BUG_ON(retval == NULL);
78513+
78514+ return retval;
78515+}
78516+
78517+static struct acl_object_label *
78518+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78519+ const struct acl_subject_label *subj)
78520+{
78521+ char *path = NULL;
78522+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
78523+}
78524+
78525+static struct acl_object_label *
78526+chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78527+ const struct acl_subject_label *subj)
78528+{
78529+ char *path = NULL;
78530+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
78531+}
78532+
78533+static struct acl_object_label *
78534+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78535+ const struct acl_subject_label *subj, char *path)
78536+{
78537+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
78538+}
78539+
78540+struct acl_subject_label *
78541+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78542+ const struct acl_role_label *role)
78543+{
78544+ struct dentry *dentry = (struct dentry *) l_dentry;
78545+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
78546+ struct mount *real_mnt = real_mount(mnt);
78547+ struct acl_subject_label *retval;
78548+ struct dentry *parent;
78549+
78550+ read_seqlock_excl(&mount_lock);
78551+ write_seqlock(&rename_lock);
78552+
78553+ for (;;) {
78554+ if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
78555+ break;
78556+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
78557+ if (!mnt_has_parent(real_mnt))
78558+ break;
78559+
78560+ spin_lock(&dentry->d_lock);
78561+ read_lock(&gr_inode_lock);
78562+ retval =
78563+ lookup_acl_subj_label(__get_ino(dentry),
78564+ __get_dev(dentry), role);
78565+ read_unlock(&gr_inode_lock);
78566+ spin_unlock(&dentry->d_lock);
78567+ if (retval != NULL)
78568+ goto out;
78569+
78570+ dentry = real_mnt->mnt_mountpoint;
78571+ real_mnt = real_mnt->mnt_parent;
78572+ mnt = &real_mnt->mnt;
78573+ continue;
78574+ }
78575+
78576+ spin_lock(&dentry->d_lock);
78577+ read_lock(&gr_inode_lock);
78578+ retval = lookup_acl_subj_label(__get_ino(dentry),
78579+ __get_dev(dentry), role);
78580+ read_unlock(&gr_inode_lock);
78581+ parent = dentry->d_parent;
78582+ spin_unlock(&dentry->d_lock);
78583+
78584+ if (retval != NULL)
78585+ goto out;
78586+
78587+ dentry = parent;
78588+ }
78589+
78590+ spin_lock(&dentry->d_lock);
78591+ read_lock(&gr_inode_lock);
78592+ retval = lookup_acl_subj_label(__get_ino(dentry),
78593+ __get_dev(dentry), role);
78594+ read_unlock(&gr_inode_lock);
78595+ spin_unlock(&dentry->d_lock);
78596+
78597+ if (unlikely(retval == NULL)) {
78598+ /* gr_real_root is pinned, we don't need to hold a reference */
78599+ read_lock(&gr_inode_lock);
78600+ retval = lookup_acl_subj_label(__get_ino(gr_real_root.dentry),
78601+ __get_dev(gr_real_root.dentry), role);
78602+ read_unlock(&gr_inode_lock);
78603+ }
78604+out:
78605+ write_sequnlock(&rename_lock);
78606+ read_sequnlock_excl(&mount_lock);
78607+
78608+ BUG_ON(retval == NULL);
78609+
78610+ return retval;
78611+}
78612+
78613+void
78614+assign_special_role(const char *rolename)
78615+{
78616+ struct acl_object_label *obj;
78617+ struct acl_role_label *r;
78618+ struct acl_role_label *assigned = NULL;
78619+ struct task_struct *tsk;
78620+ struct file *filp;
78621+
78622+ FOR_EACH_ROLE_START(r)
78623+ if (!strcmp(rolename, r->rolename) &&
78624+ (r->roletype & GR_ROLE_SPECIAL)) {
78625+ assigned = r;
78626+ break;
78627+ }
78628+ FOR_EACH_ROLE_END(r)
78629+
78630+ if (!assigned)
78631+ return;
78632+
78633+ read_lock(&tasklist_lock);
78634+ read_lock(&grsec_exec_file_lock);
78635+
78636+ tsk = current->real_parent;
78637+ if (tsk == NULL)
78638+ goto out_unlock;
78639+
78640+ filp = tsk->exec_file;
78641+ if (filp == NULL)
78642+ goto out_unlock;
78643+
78644+ tsk->is_writable = 0;
78645+ tsk->inherited = 0;
78646+
78647+ tsk->acl_sp_role = 1;
78648+ tsk->acl_role_id = ++acl_sp_role_value;
78649+ tsk->role = assigned;
78650+ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
78651+
78652+ /* ignore additional mmap checks for processes that are writable
78653+ by the default ACL */
78654+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
78655+ if (unlikely(obj->mode & GR_WRITE))
78656+ tsk->is_writable = 1;
78657+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
78658+ if (unlikely(obj->mode & GR_WRITE))
78659+ tsk->is_writable = 1;
78660+
78661+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
78662+ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename,
78663+ tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
78664+#endif
78665+
78666+out_unlock:
78667+ read_unlock(&grsec_exec_file_lock);
78668+ read_unlock(&tasklist_lock);
78669+ return;
78670+}
78671+
78672+
78673+static void
78674+gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
78675+{
78676+ struct task_struct *task = current;
78677+ const struct cred *cred = current_cred();
78678+
78679+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
78680+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78681+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78682+ 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
78683+
78684+ return;
78685+}
78686+
78687+static void
78688+gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
78689+{
78690+ struct task_struct *task = current;
78691+ const struct cred *cred = current_cred();
78692+
78693+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
78694+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78695+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78696+ 'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
78697+
78698+ return;
78699+}
78700+
78701+static void
78702+gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
78703+{
78704+ struct task_struct *task = current;
78705+ const struct cred *cred = current_cred();
78706+
78707+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
78708+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78709+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78710+ 'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
78711+
78712+ return;
78713+}
78714+
78715+static void
78716+gr_set_proc_res(struct task_struct *task)
78717+{
78718+ struct acl_subject_label *proc;
78719+ unsigned short i;
78720+
78721+ proc = task->acl;
78722+
78723+ if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
78724+ return;
78725+
78726+ for (i = 0; i < RLIM_NLIMITS; i++) {
78727+ unsigned long rlim_cur, rlim_max;
78728+
78729+ if (!(proc->resmask & (1U << i)))
78730+ continue;
78731+
78732+ rlim_cur = proc->res[i].rlim_cur;
78733+ rlim_max = proc->res[i].rlim_max;
78734+
78735+ if (i == RLIMIT_NOFILE) {
78736+ unsigned long saved_sysctl_nr_open = sysctl_nr_open;
78737+ if (rlim_cur > saved_sysctl_nr_open)
78738+ rlim_cur = saved_sysctl_nr_open;
78739+ if (rlim_max > saved_sysctl_nr_open)
78740+ rlim_max = saved_sysctl_nr_open;
78741+ }
78742+
78743+ task->signal->rlim[i].rlim_cur = rlim_cur;
78744+ task->signal->rlim[i].rlim_max = rlim_max;
78745+
78746+ if (i == RLIMIT_CPU)
78747+ update_rlimit_cpu(task, rlim_cur);
78748+ }
78749+
78750+ return;
78751+}
78752+
78753+/* both of the below must be called with
78754+ rcu_read_lock();
78755+ read_lock(&tasklist_lock);
78756+ read_lock(&grsec_exec_file_lock);
78757+ except in the case of gr_set_role_label() (for __gr_get_subject_for_task)
78758+*/
78759+
78760+struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback)
78761+{
78762+ char *tmpname;
78763+ struct acl_subject_label *tmpsubj;
78764+ struct file *filp;
78765+ struct name_entry *nmatch;
78766+
78767+ filp = task->exec_file;
78768+ if (filp == NULL)
78769+ return NULL;
78770+
78771+ /* the following is to apply the correct subject
78772+ on binaries running when the RBAC system
78773+ is enabled, when the binaries have been
78774+ replaced or deleted since their execution
78775+ -----
78776+ when the RBAC system starts, the inode/dev
78777+ from exec_file will be one the RBAC system
78778+ is unaware of. It only knows the inode/dev
78779+ of the present file on disk, or the absence
78780+ of it.
78781+ */
78782+
78783+ if (filename)
78784+ nmatch = __lookup_name_entry(state, filename);
78785+ else {
78786+ preempt_disable();
78787+ tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
78788+
78789+ nmatch = __lookup_name_entry(state, tmpname);
78790+ preempt_enable();
78791+ }
78792+ tmpsubj = NULL;
78793+ if (nmatch) {
78794+ if (nmatch->deleted)
78795+ tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
78796+ else
78797+ tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
78798+ }
78799+ /* this also works for the reload case -- if we don't match a potentially inherited subject
78800+ then we fall back to a normal lookup based on the binary's ino/dev
78801+ */
78802+ if (tmpsubj == NULL && fallback)
78803+ tmpsubj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, task->role);
78804+
78805+ return tmpsubj;
78806+}
78807+
78808+static struct acl_subject_label *gr_get_subject_for_task(struct task_struct *task, const char *filename, int fallback)
78809+{
78810+ return __gr_get_subject_for_task(&running_polstate, task, filename, fallback);
78811+}
78812+
78813+void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj)
78814+{
78815+ struct acl_object_label *obj;
78816+ struct file *filp;
78817+
78818+ filp = task->exec_file;
78819+
78820+ task->acl = subj;
78821+ task->is_writable = 0;
78822+ /* ignore additional mmap checks for processes that are writable
78823+ by the default ACL */
78824+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, state->default_role->root_label);
78825+ if (unlikely(obj->mode & GR_WRITE))
78826+ task->is_writable = 1;
78827+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
78828+ if (unlikely(obj->mode & GR_WRITE))
78829+ task->is_writable = 1;
78830+
78831+ gr_set_proc_res(task);
78832+
78833+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
78834+ 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);
78835+#endif
78836+}
78837+
78838+static void gr_apply_subject_to_task(struct task_struct *task, struct acl_subject_label *subj)
78839+{
78840+ __gr_apply_subject_to_task(&running_polstate, task, subj);
78841+}
78842+
78843+__u32
78844+gr_search_file(const struct dentry * dentry, const __u32 mode,
78845+ const struct vfsmount * mnt)
78846+{
78847+ __u32 retval = mode;
78848+ struct acl_subject_label *curracl;
78849+ struct acl_object_label *currobj;
78850+
78851+ if (unlikely(!(gr_status & GR_READY)))
78852+ return (mode & ~GR_AUDITS);
78853+
78854+ curracl = current->acl;
78855+
78856+ currobj = chk_obj_label(dentry, mnt, curracl);
78857+ retval = currobj->mode & mode;
78858+
78859+ /* if we're opening a specified transfer file for writing
78860+ (e.g. /dev/initctl), then transfer our role to init
78861+ */
78862+ if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
78863+ current->role->roletype & GR_ROLE_PERSIST)) {
78864+ struct task_struct *task = init_pid_ns.child_reaper;
78865+
78866+ if (task->role != current->role) {
78867+ struct acl_subject_label *subj;
78868+
78869+ task->acl_sp_role = 0;
78870+ task->acl_role_id = current->acl_role_id;
78871+ task->role = current->role;
78872+ rcu_read_lock();
78873+ read_lock(&grsec_exec_file_lock);
78874+ subj = gr_get_subject_for_task(task, NULL, 1);
78875+ gr_apply_subject_to_task(task, subj);
78876+ read_unlock(&grsec_exec_file_lock);
78877+ rcu_read_unlock();
78878+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
78879+ }
78880+ }
78881+
78882+ if (unlikely
78883+ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
78884+ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
78885+ __u32 new_mode = mode;
78886+
78887+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
78888+
78889+ retval = new_mode;
78890+
78891+ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
78892+ new_mode |= GR_INHERIT;
78893+
78894+ if (!(mode & GR_NOLEARN))
78895+ gr_log_learn(dentry, mnt, new_mode);
78896+ }
78897+
78898+ return retval;
78899+}
78900+
78901+struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
78902+ const struct dentry *parent,
78903+ const struct vfsmount *mnt)
78904+{
78905+ struct name_entry *match;
78906+ struct acl_object_label *matchpo;
78907+ struct acl_subject_label *curracl;
78908+ char *path;
78909+
78910+ if (unlikely(!(gr_status & GR_READY)))
78911+ return NULL;
78912+
78913+ preempt_disable();
78914+ path = gr_to_filename_rbac(new_dentry, mnt);
78915+ match = lookup_name_entry_create(path);
78916+
78917+ curracl = current->acl;
78918+
78919+ if (match) {
78920+ read_lock(&gr_inode_lock);
78921+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
78922+ read_unlock(&gr_inode_lock);
78923+
78924+ if (matchpo) {
78925+ preempt_enable();
78926+ return matchpo;
78927+ }
78928+ }
78929+
78930+ // lookup parent
78931+
78932+ matchpo = chk_obj_create_label(parent, mnt, curracl, path);
78933+
78934+ preempt_enable();
78935+ return matchpo;
78936+}
78937+
78938+__u32
78939+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
78940+ const struct vfsmount * mnt, const __u32 mode)
78941+{
78942+ struct acl_object_label *matchpo;
78943+ __u32 retval;
78944+
78945+ if (unlikely(!(gr_status & GR_READY)))
78946+ return (mode & ~GR_AUDITS);
78947+
78948+ matchpo = gr_get_create_object(new_dentry, parent, mnt);
78949+
78950+ retval = matchpo->mode & mode;
78951+
78952+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
78953+ && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
78954+ __u32 new_mode = mode;
78955+
78956+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
78957+
78958+ gr_log_learn(new_dentry, mnt, new_mode);
78959+ return new_mode;
78960+ }
78961+
78962+ return retval;
78963+}
78964+
78965+__u32
78966+gr_check_link(const struct dentry * new_dentry,
78967+ const struct dentry * parent_dentry,
78968+ const struct vfsmount * parent_mnt,
78969+ const struct dentry * old_dentry, const struct vfsmount * old_mnt)
78970+{
78971+ struct acl_object_label *obj;
78972+ __u32 oldmode, newmode;
78973+ __u32 needmode;
78974+ __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
78975+ GR_DELETE | GR_INHERIT;
78976+
78977+ if (unlikely(!(gr_status & GR_READY)))
78978+ return (GR_CREATE | GR_LINK);
78979+
78980+ obj = chk_obj_label(old_dentry, old_mnt, current->acl);
78981+ oldmode = obj->mode;
78982+
78983+ obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
78984+ newmode = obj->mode;
78985+
78986+ needmode = newmode & checkmodes;
78987+
78988+ // old name for hardlink must have at least the permissions of the new name
78989+ if ((oldmode & needmode) != needmode)
78990+ goto bad;
78991+
78992+ // if old name had restrictions/auditing, make sure the new name does as well
78993+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
78994+
78995+ // don't allow hardlinking of suid/sgid/fcapped files without permission
78996+ if (is_privileged_binary(old_dentry))
78997+ needmode |= GR_SETID;
78998+
78999+ if ((newmode & needmode) != needmode)
79000+ goto bad;
79001+
79002+ // enforce minimum permissions
79003+ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
79004+ return newmode;
79005+bad:
79006+ needmode = oldmode;
79007+ if (is_privileged_binary(old_dentry))
79008+ needmode |= GR_SETID;
79009+
79010+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
79011+ gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
79012+ return (GR_CREATE | GR_LINK);
79013+ } else if (newmode & GR_SUPPRESS)
79014+ return GR_SUPPRESS;
79015+ else
79016+ return 0;
79017+}
79018+
79019+int
79020+gr_check_hidden_task(const struct task_struct *task)
79021+{
79022+ if (unlikely(!(gr_status & GR_READY)))
79023+ return 0;
79024+
79025+ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
79026+ return 1;
79027+
79028+ return 0;
79029+}
79030+
79031+int
79032+gr_check_protected_task(const struct task_struct *task)
79033+{
79034+ if (unlikely(!(gr_status & GR_READY) || !task))
79035+ return 0;
79036+
79037+ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
79038+ task->acl != current->acl)
79039+ return 1;
79040+
79041+ return 0;
79042+}
79043+
79044+int
79045+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
79046+{
79047+ struct task_struct *p;
79048+ int ret = 0;
79049+
79050+ if (unlikely(!(gr_status & GR_READY) || !pid))
79051+ return ret;
79052+
79053+ read_lock(&tasklist_lock);
79054+ do_each_pid_task(pid, type, p) {
79055+ if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
79056+ p->acl != current->acl) {
79057+ ret = 1;
79058+ goto out;
79059+ }
79060+ } while_each_pid_task(pid, type, p);
79061+out:
79062+ read_unlock(&tasklist_lock);
79063+
79064+ return ret;
79065+}
79066+
79067+void
79068+gr_copy_label(struct task_struct *tsk)
79069+{
79070+ struct task_struct *p = current;
79071+
79072+ tsk->inherited = p->inherited;
79073+ tsk->acl_sp_role = 0;
79074+ tsk->acl_role_id = p->acl_role_id;
79075+ tsk->acl = p->acl;
79076+ tsk->role = p->role;
79077+ tsk->signal->used_accept = 0;
79078+ tsk->signal->curr_ip = p->signal->curr_ip;
79079+ tsk->signal->saved_ip = p->signal->saved_ip;
79080+ if (p->exec_file)
79081+ get_file(p->exec_file);
79082+ tsk->exec_file = p->exec_file;
79083+ tsk->is_writable = p->is_writable;
79084+ if (unlikely(p->signal->used_accept)) {
79085+ p->signal->curr_ip = 0;
79086+ p->signal->saved_ip = 0;
79087+ }
79088+
79089+ return;
79090+}
79091+
79092+extern int gr_process_kernel_setuid_ban(struct user_struct *user);
79093+
79094+int
79095+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
79096+{
79097+ unsigned int i;
79098+ __u16 num;
79099+ uid_t *uidlist;
79100+ uid_t curuid;
79101+ int realok = 0;
79102+ int effectiveok = 0;
79103+ int fsok = 0;
79104+ uid_t globalreal, globaleffective, globalfs;
79105+
79106+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT)
79107+ struct user_struct *user;
79108+
79109+ if (!uid_valid(real))
79110+ goto skipit;
79111+
79112+ /* find user based on global namespace */
79113+
79114+ globalreal = GR_GLOBAL_UID(real);
79115+
79116+ user = find_user(make_kuid(&init_user_ns, globalreal));
79117+ if (user == NULL)
79118+ goto skipit;
79119+
79120+ if (gr_process_kernel_setuid_ban(user)) {
79121+ /* for find_user */
79122+ free_uid(user);
79123+ return 1;
79124+ }
79125+
79126+ /* for find_user */
79127+ free_uid(user);
79128+
79129+skipit:
79130+#endif
79131+
79132+ if (unlikely(!(gr_status & GR_READY)))
79133+ return 0;
79134+
79135+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
79136+ gr_log_learn_uid_change(real, effective, fs);
79137+
79138+ num = current->acl->user_trans_num;
79139+ uidlist = current->acl->user_transitions;
79140+
79141+ if (uidlist == NULL)
79142+ return 0;
79143+
79144+ if (!uid_valid(real)) {
79145+ realok = 1;
79146+ globalreal = (uid_t)-1;
79147+ } else {
79148+ globalreal = GR_GLOBAL_UID(real);
79149+ }
79150+ if (!uid_valid(effective)) {
79151+ effectiveok = 1;
79152+ globaleffective = (uid_t)-1;
79153+ } else {
79154+ globaleffective = GR_GLOBAL_UID(effective);
79155+ }
79156+ if (!uid_valid(fs)) {
79157+ fsok = 1;
79158+ globalfs = (uid_t)-1;
79159+ } else {
79160+ globalfs = GR_GLOBAL_UID(fs);
79161+ }
79162+
79163+ if (current->acl->user_trans_type & GR_ID_ALLOW) {
79164+ for (i = 0; i < num; i++) {
79165+ curuid = uidlist[i];
79166+ if (globalreal == curuid)
79167+ realok = 1;
79168+ if (globaleffective == curuid)
79169+ effectiveok = 1;
79170+ if (globalfs == curuid)
79171+ fsok = 1;
79172+ }
79173+ } else if (current->acl->user_trans_type & GR_ID_DENY) {
79174+ for (i = 0; i < num; i++) {
79175+ curuid = uidlist[i];
79176+ if (globalreal == curuid)
79177+ break;
79178+ if (globaleffective == curuid)
79179+ break;
79180+ if (globalfs == curuid)
79181+ break;
79182+ }
79183+ /* not in deny list */
79184+ if (i == num) {
79185+ realok = 1;
79186+ effectiveok = 1;
79187+ fsok = 1;
79188+ }
79189+ }
79190+
79191+ if (realok && effectiveok && fsok)
79192+ return 0;
79193+ else {
79194+ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
79195+ return 1;
79196+ }
79197+}
79198+
79199+int
79200+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
79201+{
79202+ unsigned int i;
79203+ __u16 num;
79204+ gid_t *gidlist;
79205+ gid_t curgid;
79206+ int realok = 0;
79207+ int effectiveok = 0;
79208+ int fsok = 0;
79209+ gid_t globalreal, globaleffective, globalfs;
79210+
79211+ if (unlikely(!(gr_status & GR_READY)))
79212+ return 0;
79213+
79214+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
79215+ gr_log_learn_gid_change(real, effective, fs);
79216+
79217+ num = current->acl->group_trans_num;
79218+ gidlist = current->acl->group_transitions;
79219+
79220+ if (gidlist == NULL)
79221+ return 0;
79222+
79223+ if (!gid_valid(real)) {
79224+ realok = 1;
79225+ globalreal = (gid_t)-1;
79226+ } else {
79227+ globalreal = GR_GLOBAL_GID(real);
79228+ }
79229+ if (!gid_valid(effective)) {
79230+ effectiveok = 1;
79231+ globaleffective = (gid_t)-1;
79232+ } else {
79233+ globaleffective = GR_GLOBAL_GID(effective);
79234+ }
79235+ if (!gid_valid(fs)) {
79236+ fsok = 1;
79237+ globalfs = (gid_t)-1;
79238+ } else {
79239+ globalfs = GR_GLOBAL_GID(fs);
79240+ }
79241+
79242+ if (current->acl->group_trans_type & GR_ID_ALLOW) {
79243+ for (i = 0; i < num; i++) {
79244+ curgid = gidlist[i];
79245+ if (globalreal == curgid)
79246+ realok = 1;
79247+ if (globaleffective == curgid)
79248+ effectiveok = 1;
79249+ if (globalfs == curgid)
79250+ fsok = 1;
79251+ }
79252+ } else if (current->acl->group_trans_type & GR_ID_DENY) {
79253+ for (i = 0; i < num; i++) {
79254+ curgid = gidlist[i];
79255+ if (globalreal == curgid)
79256+ break;
79257+ if (globaleffective == curgid)
79258+ break;
79259+ if (globalfs == curgid)
79260+ break;
79261+ }
79262+ /* not in deny list */
79263+ if (i == num) {
79264+ realok = 1;
79265+ effectiveok = 1;
79266+ fsok = 1;
79267+ }
79268+ }
79269+
79270+ if (realok && effectiveok && fsok)
79271+ return 0;
79272+ else {
79273+ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
79274+ return 1;
79275+ }
79276+}
79277+
79278+extern int gr_acl_is_capable(const int cap);
79279+
79280+void
79281+gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
79282+{
79283+ struct acl_role_label *role = task->role;
79284+ struct acl_role_label *origrole = role;
79285+ struct acl_subject_label *subj = NULL;
79286+ struct acl_object_label *obj;
79287+ struct file *filp;
79288+ uid_t uid;
79289+ gid_t gid;
79290+
79291+ if (unlikely(!(gr_status & GR_READY)))
79292+ return;
79293+
79294+ uid = GR_GLOBAL_UID(kuid);
79295+ gid = GR_GLOBAL_GID(kgid);
79296+
79297+ filp = task->exec_file;
79298+
79299+ /* kernel process, we'll give them the kernel role */
79300+ if (unlikely(!filp)) {
79301+ task->role = running_polstate.kernel_role;
79302+ task->acl = running_polstate.kernel_role->root_label;
79303+ return;
79304+ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) {
79305+ /* save the current ip at time of role lookup so that the proper
79306+ IP will be learned for role_allowed_ip */
79307+ task->signal->saved_ip = task->signal->curr_ip;
79308+ role = lookup_acl_role_label(task, uid, gid);
79309+ }
79310+
79311+ /* don't change the role if we're not a privileged process */
79312+ if (role && task->role != role &&
79313+ (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
79314+ ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
79315+ return;
79316+
79317+ task->role = role;
79318+
79319+ if (task->inherited) {
79320+ /* if we reached our subject through inheritance, then first see
79321+ if there's a subject of the same name in the new role that has
79322+ an object that would result in the same inherited subject
79323+ */
79324+ subj = gr_get_subject_for_task(task, task->acl->filename, 0);
79325+ if (subj) {
79326+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, subj);
79327+ if (!(obj->mode & GR_INHERIT))
79328+ subj = NULL;
79329+ }
79330+
79331+ }
79332+ if (subj == NULL) {
79333+ /* otherwise:
79334+ perform subject lookup in possibly new role
79335+ we can use this result below in the case where role == task->role
79336+ */
79337+ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
79338+ }
79339+
79340+ /* if we changed uid/gid, but result in the same role
79341+ and are using inheritance, don't lose the inherited subject
79342+ if current subject is other than what normal lookup
79343+ would result in, we arrived via inheritance, don't
79344+ lose subject
79345+ */
79346+ if (role != origrole || (!(task->acl->mode & GR_INHERITLEARN) &&
79347+ (subj == task->acl)))
79348+ task->acl = subj;
79349+
79350+ /* leave task->inherited unaffected */
79351+
79352+ task->is_writable = 0;
79353+
79354+ /* ignore additional mmap checks for processes that are writable
79355+ by the default ACL */
79356+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
79357+ if (unlikely(obj->mode & GR_WRITE))
79358+ task->is_writable = 1;
79359+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
79360+ if (unlikely(obj->mode & GR_WRITE))
79361+ task->is_writable = 1;
79362+
79363+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
79364+ 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);
79365+#endif
79366+
79367+ gr_set_proc_res(task);
79368+
79369+ return;
79370+}
79371+
79372+int
79373+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
79374+ const int unsafe_flags)
79375+{
79376+ struct task_struct *task = current;
79377+ struct acl_subject_label *newacl;
79378+ struct acl_object_label *obj;
79379+ __u32 retmode;
79380+
79381+ if (unlikely(!(gr_status & GR_READY)))
79382+ return 0;
79383+
79384+ newacl = chk_subj_label(dentry, mnt, task->role);
79385+
79386+ /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
79387+ did an exec
79388+ */
79389+ rcu_read_lock();
79390+ read_lock(&tasklist_lock);
79391+ if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
79392+ (task->parent->acl->mode & GR_POVERRIDE))) {
79393+ read_unlock(&tasklist_lock);
79394+ rcu_read_unlock();
79395+ goto skip_check;
79396+ }
79397+ read_unlock(&tasklist_lock);
79398+ rcu_read_unlock();
79399+
79400+ if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
79401+ !(task->role->roletype & GR_ROLE_GOD) &&
79402+ !gr_search_file(dentry, GR_PTRACERD, mnt) &&
79403+ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
79404+ if (unsafe_flags & LSM_UNSAFE_SHARE)
79405+ gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
79406+ else
79407+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
79408+ return -EACCES;
79409+ }
79410+
79411+skip_check:
79412+
79413+ obj = chk_obj_label(dentry, mnt, task->acl);
79414+ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
79415+
79416+ if (!(task->acl->mode & GR_INHERITLEARN) &&
79417+ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
79418+ if (obj->nested)
79419+ task->acl = obj->nested;
79420+ else
79421+ task->acl = newacl;
79422+ task->inherited = 0;
79423+ } else {
79424+ task->inherited = 1;
79425+ if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
79426+ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
79427+ }
79428+
79429+ task->is_writable = 0;
79430+
79431+ /* ignore additional mmap checks for processes that are writable
79432+ by the default ACL */
79433+ obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
79434+ if (unlikely(obj->mode & GR_WRITE))
79435+ task->is_writable = 1;
79436+ obj = chk_obj_label(dentry, mnt, task->role->root_label);
79437+ if (unlikely(obj->mode & GR_WRITE))
79438+ task->is_writable = 1;
79439+
79440+ gr_set_proc_res(task);
79441+
79442+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
79443+ 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);
79444+#endif
79445+ return 0;
79446+}
79447+
79448+/* always called with valid inodev ptr */
79449+static void
79450+do_handle_delete(struct inodev_entry *inodev, const u64 ino, const dev_t dev)
79451+{
79452+ struct acl_object_label *matchpo;
79453+ struct acl_subject_label *matchps;
79454+ struct acl_subject_label *subj;
79455+ struct acl_role_label *role;
79456+ unsigned int x;
79457+
79458+ FOR_EACH_ROLE_START(role)
79459+ FOR_EACH_SUBJECT_START(role, subj, x)
79460+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
79461+ matchpo->mode |= GR_DELETED;
79462+ FOR_EACH_SUBJECT_END(subj,x)
79463+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
79464+ /* nested subjects aren't in the role's subj_hash table */
79465+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
79466+ matchpo->mode |= GR_DELETED;
79467+ FOR_EACH_NESTED_SUBJECT_END(subj)
79468+ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
79469+ matchps->mode |= GR_DELETED;
79470+ FOR_EACH_ROLE_END(role)
79471+
79472+ inodev->nentry->deleted = 1;
79473+
79474+ return;
79475+}
79476+
79477+void
79478+gr_handle_delete(const u64 ino, const dev_t dev)
79479+{
79480+ struct inodev_entry *inodev;
79481+
79482+ if (unlikely(!(gr_status & GR_READY)))
79483+ return;
79484+
79485+ write_lock(&gr_inode_lock);
79486+ inodev = lookup_inodev_entry(ino, dev);
79487+ if (inodev != NULL)
79488+ do_handle_delete(inodev, ino, dev);
79489+ write_unlock(&gr_inode_lock);
79490+
79491+ return;
79492+}
79493+
79494+static void
79495+update_acl_obj_label(const u64 oldinode, const dev_t olddevice,
79496+ const u64 newinode, const dev_t newdevice,
79497+ struct acl_subject_label *subj)
79498+{
79499+ unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
79500+ struct acl_object_label *match;
79501+
79502+ match = subj->obj_hash[index];
79503+
79504+ while (match && (match->inode != oldinode ||
79505+ match->device != olddevice ||
79506+ !(match->mode & GR_DELETED)))
79507+ match = match->next;
79508+
79509+ if (match && (match->inode == oldinode)
79510+ && (match->device == olddevice)
79511+ && (match->mode & GR_DELETED)) {
79512+ if (match->prev == NULL) {
79513+ subj->obj_hash[index] = match->next;
79514+ if (match->next != NULL)
79515+ match->next->prev = NULL;
79516+ } else {
79517+ match->prev->next = match->next;
79518+ if (match->next != NULL)
79519+ match->next->prev = match->prev;
79520+ }
79521+ match->prev = NULL;
79522+ match->next = NULL;
79523+ match->inode = newinode;
79524+ match->device = newdevice;
79525+ match->mode &= ~GR_DELETED;
79526+
79527+ insert_acl_obj_label(match, subj);
79528+ }
79529+
79530+ return;
79531+}
79532+
79533+static void
79534+update_acl_subj_label(const u64 oldinode, const dev_t olddevice,
79535+ const u64 newinode, const dev_t newdevice,
79536+ struct acl_role_label *role)
79537+{
79538+ unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
79539+ struct acl_subject_label *match;
79540+
79541+ match = role->subj_hash[index];
79542+
79543+ while (match && (match->inode != oldinode ||
79544+ match->device != olddevice ||
79545+ !(match->mode & GR_DELETED)))
79546+ match = match->next;
79547+
79548+ if (match && (match->inode == oldinode)
79549+ && (match->device == olddevice)
79550+ && (match->mode & GR_DELETED)) {
79551+ if (match->prev == NULL) {
79552+ role->subj_hash[index] = match->next;
79553+ if (match->next != NULL)
79554+ match->next->prev = NULL;
79555+ } else {
79556+ match->prev->next = match->next;
79557+ if (match->next != NULL)
79558+ match->next->prev = match->prev;
79559+ }
79560+ match->prev = NULL;
79561+ match->next = NULL;
79562+ match->inode = newinode;
79563+ match->device = newdevice;
79564+ match->mode &= ~GR_DELETED;
79565+
79566+ insert_acl_subj_label(match, role);
79567+ }
79568+
79569+ return;
79570+}
79571+
79572+static void
79573+update_inodev_entry(const u64 oldinode, const dev_t olddevice,
79574+ const u64 newinode, const dev_t newdevice)
79575+{
79576+ unsigned int index = gr_fhash(oldinode, olddevice, running_polstate.inodev_set.i_size);
79577+ struct inodev_entry *match;
79578+
79579+ match = running_polstate.inodev_set.i_hash[index];
79580+
79581+ while (match && (match->nentry->inode != oldinode ||
79582+ match->nentry->device != olddevice || !match->nentry->deleted))
79583+ match = match->next;
79584+
79585+ if (match && (match->nentry->inode == oldinode)
79586+ && (match->nentry->device == olddevice) &&
79587+ match->nentry->deleted) {
79588+ if (match->prev == NULL) {
79589+ running_polstate.inodev_set.i_hash[index] = match->next;
79590+ if (match->next != NULL)
79591+ match->next->prev = NULL;
79592+ } else {
79593+ match->prev->next = match->next;
79594+ if (match->next != NULL)
79595+ match->next->prev = match->prev;
79596+ }
79597+ match->prev = NULL;
79598+ match->next = NULL;
79599+ match->nentry->inode = newinode;
79600+ match->nentry->device = newdevice;
79601+ match->nentry->deleted = 0;
79602+
79603+ insert_inodev_entry(match);
79604+ }
79605+
79606+ return;
79607+}
79608+
79609+static void
79610+__do_handle_create(const struct name_entry *matchn, u64 ino, dev_t dev)
79611+{
79612+ struct acl_subject_label *subj;
79613+ struct acl_role_label *role;
79614+ unsigned int x;
79615+
79616+ FOR_EACH_ROLE_START(role)
79617+ update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
79618+
79619+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
79620+ if ((subj->inode == ino) && (subj->device == dev)) {
79621+ subj->inode = ino;
79622+ subj->device = dev;
79623+ }
79624+ /* nested subjects aren't in the role's subj_hash table */
79625+ update_acl_obj_label(matchn->inode, matchn->device,
79626+ ino, dev, subj);
79627+ FOR_EACH_NESTED_SUBJECT_END(subj)
79628+ FOR_EACH_SUBJECT_START(role, subj, x)
79629+ update_acl_obj_label(matchn->inode, matchn->device,
79630+ ino, dev, subj);
79631+ FOR_EACH_SUBJECT_END(subj,x)
79632+ FOR_EACH_ROLE_END(role)
79633+
79634+ update_inodev_entry(matchn->inode, matchn->device, ino, dev);
79635+
79636+ return;
79637+}
79638+
79639+static void
79640+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
79641+ const struct vfsmount *mnt)
79642+{
79643+ u64 ino = __get_ino(dentry);
79644+ dev_t dev = __get_dev(dentry);
79645+
79646+ __do_handle_create(matchn, ino, dev);
79647+
79648+ return;
79649+}
79650+
79651+void
79652+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
79653+{
79654+ struct name_entry *matchn;
79655+
79656+ if (unlikely(!(gr_status & GR_READY)))
79657+ return;
79658+
79659+ preempt_disable();
79660+ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
79661+
79662+ if (unlikely((unsigned long)matchn)) {
79663+ write_lock(&gr_inode_lock);
79664+ do_handle_create(matchn, dentry, mnt);
79665+ write_unlock(&gr_inode_lock);
79666+ }
79667+ preempt_enable();
79668+
79669+ return;
79670+}
79671+
79672+void
79673+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
79674+{
79675+ struct name_entry *matchn;
79676+
79677+ if (unlikely(!(gr_status & GR_READY)))
79678+ return;
79679+
79680+ preempt_disable();
79681+ matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
79682+
79683+ if (unlikely((unsigned long)matchn)) {
79684+ write_lock(&gr_inode_lock);
79685+ __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
79686+ write_unlock(&gr_inode_lock);
79687+ }
79688+ preempt_enable();
79689+
79690+ return;
79691+}
79692+
79693+void
79694+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
79695+ struct dentry *old_dentry,
79696+ struct dentry *new_dentry,
79697+ struct vfsmount *mnt, const __u8 replace, unsigned int flags)
79698+{
79699+ struct name_entry *matchn;
79700+ struct name_entry *matchn2 = NULL;
79701+ struct inodev_entry *inodev;
79702+ struct inode *inode = new_dentry->d_inode;
79703+ u64 old_ino = __get_ino(old_dentry);
79704+ dev_t old_dev = __get_dev(old_dentry);
79705+ unsigned int exchange = flags & RENAME_EXCHANGE;
79706+
79707+ /* vfs_rename swaps the name and parent link for old_dentry and
79708+ new_dentry
79709+ at this point, old_dentry has the new name, parent link, and inode
79710+ for the renamed file
79711+ if a file is being replaced by a rename, new_dentry has the inode
79712+ and name for the replaced file
79713+ */
79714+
79715+ if (unlikely(!(gr_status & GR_READY)))
79716+ return;
79717+
79718+ preempt_disable();
79719+ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
79720+
79721+ /* exchange cases:
79722+ a filename exists for the source, but not dest
79723+ do a recreate on source
79724+ a filename exists for the dest, but not source
79725+ do a recreate on dest
79726+ a filename exists for both source and dest
79727+ delete source and dest, then create source and dest
79728+ a filename exists for neither source nor dest
79729+ no updates needed
79730+
79731+ the name entry lookups get us the old inode/dev associated with
79732+ each name, so do the deletes first (if possible) so that when
79733+ we do the create, we pick up on the right entries
79734+ */
79735+
79736+ if (exchange)
79737+ matchn2 = lookup_name_entry(gr_to_filename_rbac(new_dentry, mnt));
79738+
79739+ /* we wouldn't have to check d_inode if it weren't for
79740+ NFS silly-renaming
79741+ */
79742+
79743+ write_lock(&gr_inode_lock);
79744+ if (unlikely((replace || exchange) && inode)) {
79745+ u64 new_ino = __get_ino(new_dentry);
79746+ dev_t new_dev = __get_dev(new_dentry);
79747+
79748+ inodev = lookup_inodev_entry(new_ino, new_dev);
79749+ if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
79750+ do_handle_delete(inodev, new_ino, new_dev);
79751+ }
79752+
79753+ inodev = lookup_inodev_entry(old_ino, old_dev);
79754+ if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
79755+ do_handle_delete(inodev, old_ino, old_dev);
79756+
79757+ if (unlikely(matchn != NULL))
79758+ do_handle_create(matchn, old_dentry, mnt);
79759+
79760+ if (unlikely(matchn2 != NULL))
79761+ do_handle_create(matchn2, new_dentry, mnt);
79762+
79763+ write_unlock(&gr_inode_lock);
79764+ preempt_enable();
79765+
79766+ return;
79767+}
79768+
79769+#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
79770+static const unsigned long res_learn_bumps[GR_NLIMITS] = {
79771+ [RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
79772+ [RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
79773+ [RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
79774+ [RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
79775+ [RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
79776+ [RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
79777+ [RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
79778+ [RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
79779+ [RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
79780+ [RLIMIT_AS] = GR_RLIM_AS_BUMP,
79781+ [RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
79782+ [RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
79783+ [RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
79784+ [RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
79785+ [RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
79786+ [RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
79787+};
79788+
79789+void
79790+gr_learn_resource(const struct task_struct *task,
79791+ const int res, const unsigned long wanted, const int gt)
79792+{
79793+ struct acl_subject_label *acl;
79794+ const struct cred *cred;
79795+
79796+ if (unlikely((gr_status & GR_READY) &&
79797+ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
79798+ goto skip_reslog;
79799+
79800+ gr_log_resource(task, res, wanted, gt);
79801+skip_reslog:
79802+
79803+ if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
79804+ return;
79805+
79806+ acl = task->acl;
79807+
79808+ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
79809+ !(acl->resmask & (1U << (unsigned short) res))))
79810+ return;
79811+
79812+ if (wanted >= acl->res[res].rlim_cur) {
79813+ unsigned long res_add;
79814+
79815+ res_add = wanted + res_learn_bumps[res];
79816+
79817+ acl->res[res].rlim_cur = res_add;
79818+
79819+ if (wanted > acl->res[res].rlim_max)
79820+ acl->res[res].rlim_max = res_add;
79821+
79822+ /* only log the subject filename, since resource logging is supported for
79823+ single-subject learning only */
79824+ rcu_read_lock();
79825+ cred = __task_cred(task);
79826+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
79827+ task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
79828+ acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
79829+ "", (unsigned long) res, &task->signal->saved_ip);
79830+ rcu_read_unlock();
79831+ }
79832+
79833+ return;
79834+}
79835+EXPORT_SYMBOL_GPL(gr_learn_resource);
79836+#endif
79837+
79838+#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
79839+void
79840+pax_set_initial_flags(struct linux_binprm *bprm)
79841+{
79842+ struct task_struct *task = current;
79843+ struct acl_subject_label *proc;
79844+ unsigned long flags;
79845+
79846+ if (unlikely(!(gr_status & GR_READY)))
79847+ return;
79848+
79849+ flags = pax_get_flags(task);
79850+
79851+ proc = task->acl;
79852+
79853+ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
79854+ flags &= ~MF_PAX_PAGEEXEC;
79855+ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
79856+ flags &= ~MF_PAX_SEGMEXEC;
79857+ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
79858+ flags &= ~MF_PAX_RANDMMAP;
79859+ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
79860+ flags &= ~MF_PAX_EMUTRAMP;
79861+ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
79862+ flags &= ~MF_PAX_MPROTECT;
79863+
79864+ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
79865+ flags |= MF_PAX_PAGEEXEC;
79866+ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
79867+ flags |= MF_PAX_SEGMEXEC;
79868+ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
79869+ flags |= MF_PAX_RANDMMAP;
79870+ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
79871+ flags |= MF_PAX_EMUTRAMP;
79872+ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
79873+ flags |= MF_PAX_MPROTECT;
79874+
79875+ pax_set_flags(task, flags);
79876+
79877+ return;
79878+}
79879+#endif
79880+
79881+int
79882+gr_handle_proc_ptrace(struct task_struct *task)
79883+{
79884+ struct file *filp;
79885+ struct task_struct *tmp = task;
79886+ struct task_struct *curtemp = current;
79887+ __u32 retmode;
79888+
79889+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
79890+ if (unlikely(!(gr_status & GR_READY)))
79891+ return 0;
79892+#endif
79893+
79894+ read_lock(&tasklist_lock);
79895+ read_lock(&grsec_exec_file_lock);
79896+ filp = task->exec_file;
79897+
79898+ while (task_pid_nr(tmp) > 0) {
79899+ if (tmp == curtemp)
79900+ break;
79901+ tmp = tmp->real_parent;
79902+ }
79903+
79904+ if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
79905+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) {
79906+ read_unlock(&grsec_exec_file_lock);
79907+ read_unlock(&tasklist_lock);
79908+ return 1;
79909+ }
79910+
79911+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
79912+ if (!(gr_status & GR_READY)) {
79913+ read_unlock(&grsec_exec_file_lock);
79914+ read_unlock(&tasklist_lock);
79915+ return 0;
79916+ }
79917+#endif
79918+
79919+ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
79920+ read_unlock(&grsec_exec_file_lock);
79921+ read_unlock(&tasklist_lock);
79922+
79923+ if (retmode & GR_NOPTRACE)
79924+ return 1;
79925+
79926+ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
79927+ && (current->acl != task->acl || (current->acl != current->role->root_label
79928+ && task_pid_nr(current) != task_pid_nr(task))))
79929+ return 1;
79930+
79931+ return 0;
79932+}
79933+
79934+void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
79935+{
79936+ if (unlikely(!(gr_status & GR_READY)))
79937+ return;
79938+
79939+ if (!(current->role->roletype & GR_ROLE_GOD))
79940+ return;
79941+
79942+ seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
79943+ p->role->rolename, gr_task_roletype_to_char(p),
79944+ p->acl->filename);
79945+}
79946+
79947+int
79948+gr_handle_ptrace(struct task_struct *task, const long request)
79949+{
79950+ struct task_struct *tmp = task;
79951+ struct task_struct *curtemp = current;
79952+ __u32 retmode;
79953+
79954+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
79955+ if (unlikely(!(gr_status & GR_READY)))
79956+ return 0;
79957+#endif
79958+ if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
79959+ read_lock(&tasklist_lock);
79960+ while (task_pid_nr(tmp) > 0) {
79961+ if (tmp == curtemp)
79962+ break;
79963+ tmp = tmp->real_parent;
79964+ }
79965+
79966+ if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
79967+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) {
79968+ read_unlock(&tasklist_lock);
79969+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
79970+ return 1;
79971+ }
79972+ read_unlock(&tasklist_lock);
79973+ }
79974+
79975+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
79976+ if (!(gr_status & GR_READY))
79977+ return 0;
79978+#endif
79979+
79980+ read_lock(&grsec_exec_file_lock);
79981+ if (unlikely(!task->exec_file)) {
79982+ read_unlock(&grsec_exec_file_lock);
79983+ return 0;
79984+ }
79985+
79986+ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
79987+ read_unlock(&grsec_exec_file_lock);
79988+
79989+ if (retmode & GR_NOPTRACE) {
79990+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
79991+ return 1;
79992+ }
79993+
79994+ if (retmode & GR_PTRACERD) {
79995+ switch (request) {
79996+ case PTRACE_SEIZE:
79997+ case PTRACE_POKETEXT:
79998+ case PTRACE_POKEDATA:
79999+ case PTRACE_POKEUSR:
80000+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
80001+ case PTRACE_SETREGS:
80002+ case PTRACE_SETFPREGS:
80003+#endif
80004+#ifdef CONFIG_X86
80005+ case PTRACE_SETFPXREGS:
80006+#endif
80007+#ifdef CONFIG_ALTIVEC
80008+ case PTRACE_SETVRREGS:
80009+#endif
80010+ return 1;
80011+ default:
80012+ return 0;
80013+ }
80014+ } else if (!(current->acl->mode & GR_POVERRIDE) &&
80015+ !(current->role->roletype & GR_ROLE_GOD) &&
80016+ (current->acl != task->acl)) {
80017+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
80018+ return 1;
80019+ }
80020+
80021+ return 0;
80022+}
80023+
80024+static int is_writable_mmap(const struct file *filp)
80025+{
80026+ struct task_struct *task = current;
80027+ struct acl_object_label *obj, *obj2;
80028+
80029+ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
80030+ !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))) {
80031+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
80032+ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
80033+ task->role->root_label);
80034+ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
80035+ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
80036+ return 1;
80037+ }
80038+ }
80039+ return 0;
80040+}
80041+
80042+int
80043+gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
80044+{
80045+ __u32 mode;
80046+
80047+ if (unlikely(!file || !(prot & PROT_EXEC)))
80048+ return 1;
80049+
80050+ if (is_writable_mmap(file))
80051+ return 0;
80052+
80053+ mode =
80054+ gr_search_file(file->f_path.dentry,
80055+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
80056+ file->f_path.mnt);
80057+
80058+ if (!gr_tpe_allow(file))
80059+ return 0;
80060+
80061+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
80062+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80063+ return 0;
80064+ } else if (unlikely(!(mode & GR_EXEC))) {
80065+ return 0;
80066+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
80067+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80068+ return 1;
80069+ }
80070+
80071+ return 1;
80072+}
80073+
80074+int
80075+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
80076+{
80077+ __u32 mode;
80078+
80079+ if (unlikely(!file || !(prot & PROT_EXEC)))
80080+ return 1;
80081+
80082+ if (is_writable_mmap(file))
80083+ return 0;
80084+
80085+ mode =
80086+ gr_search_file(file->f_path.dentry,
80087+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
80088+ file->f_path.mnt);
80089+
80090+ if (!gr_tpe_allow(file))
80091+ return 0;
80092+
80093+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
80094+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80095+ return 0;
80096+ } else if (unlikely(!(mode & GR_EXEC))) {
80097+ return 0;
80098+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
80099+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80100+ return 1;
80101+ }
80102+
80103+ return 1;
80104+}
80105+
80106+void
80107+gr_acl_handle_psacct(struct task_struct *task, const long code)
80108+{
80109+ unsigned long runtime, cputime;
80110+ cputime_t utime, stime;
80111+ unsigned int wday, cday;
80112+ __u8 whr, chr;
80113+ __u8 wmin, cmin;
80114+ __u8 wsec, csec;
80115+ struct timespec curtime, starttime;
80116+
80117+ if (unlikely(!(gr_status & GR_READY) || !task->acl ||
80118+ !(task->acl->mode & GR_PROCACCT)))
80119+ return;
80120+
80121+ curtime = ns_to_timespec(ktime_get_ns());
80122+ starttime = ns_to_timespec(task->start_time);
80123+ runtime = curtime.tv_sec - starttime.tv_sec;
80124+ wday = runtime / (60 * 60 * 24);
80125+ runtime -= wday * (60 * 60 * 24);
80126+ whr = runtime / (60 * 60);
80127+ runtime -= whr * (60 * 60);
80128+ wmin = runtime / 60;
80129+ runtime -= wmin * 60;
80130+ wsec = runtime;
80131+
80132+ task_cputime(task, &utime, &stime);
80133+ cputime = cputime_to_secs(utime + stime);
80134+ cday = cputime / (60 * 60 * 24);
80135+ cputime -= cday * (60 * 60 * 24);
80136+ chr = cputime / (60 * 60);
80137+ cputime -= chr * (60 * 60);
80138+ cmin = cputime / 60;
80139+ cputime -= cmin * 60;
80140+ csec = cputime;
80141+
80142+ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
80143+
80144+ return;
80145+}
80146+
80147+#ifdef CONFIG_TASKSTATS
80148+int gr_is_taskstats_denied(int pid)
80149+{
80150+ struct task_struct *task;
80151+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80152+ const struct cred *cred;
80153+#endif
80154+ int ret = 0;
80155+
80156+ /* restrict taskstats viewing to un-chrooted root users
80157+ who have the 'view' subject flag if the RBAC system is enabled
80158+ */
80159+
80160+ rcu_read_lock();
80161+ read_lock(&tasklist_lock);
80162+ task = find_task_by_vpid(pid);
80163+ if (task) {
80164+#ifdef CONFIG_GRKERNSEC_CHROOT
80165+ if (proc_is_chrooted(task))
80166+ ret = -EACCES;
80167+#endif
80168+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80169+ cred = __task_cred(task);
80170+#ifdef CONFIG_GRKERNSEC_PROC_USER
80171+ if (gr_is_global_nonroot(cred->uid))
80172+ ret = -EACCES;
80173+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80174+ if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
80175+ ret = -EACCES;
80176+#endif
80177+#endif
80178+ if (gr_status & GR_READY) {
80179+ if (!(task->acl->mode & GR_VIEW))
80180+ ret = -EACCES;
80181+ }
80182+ } else
80183+ ret = -ENOENT;
80184+
80185+ read_unlock(&tasklist_lock);
80186+ rcu_read_unlock();
80187+
80188+ return ret;
80189+}
80190+#endif
80191+
80192+/* AUXV entries are filled via a descendant of search_binary_handler
80193+ after we've already applied the subject for the target
80194+*/
80195+int gr_acl_enable_at_secure(void)
80196+{
80197+ if (unlikely(!(gr_status & GR_READY)))
80198+ return 0;
80199+
80200+ if (current->acl->mode & GR_ATSECURE)
80201+ return 1;
80202+
80203+ return 0;
80204+}
80205+
80206+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const u64 ino)
80207+{
80208+ struct task_struct *task = current;
80209+ struct dentry *dentry = file->f_path.dentry;
80210+ struct vfsmount *mnt = file->f_path.mnt;
80211+ struct acl_object_label *obj, *tmp;
80212+ struct acl_subject_label *subj;
80213+ unsigned int bufsize;
80214+ int is_not_root;
80215+ char *path;
80216+ dev_t dev = __get_dev(dentry);
80217+
80218+ if (unlikely(!(gr_status & GR_READY)))
80219+ return 1;
80220+
80221+ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
80222+ return 1;
80223+
80224+ /* ignore Eric Biederman */
80225+ if (IS_PRIVATE(dentry->d_inode))
80226+ return 1;
80227+
80228+ subj = task->acl;
80229+ read_lock(&gr_inode_lock);
80230+ do {
80231+ obj = lookup_acl_obj_label(ino, dev, subj);
80232+ if (obj != NULL) {
80233+ read_unlock(&gr_inode_lock);
80234+ return (obj->mode & GR_FIND) ? 1 : 0;
80235+ }
80236+ } while ((subj = subj->parent_subject));
80237+ read_unlock(&gr_inode_lock);
80238+
80239+ /* this is purely an optimization since we're looking for an object
80240+ for the directory we're doing a readdir on
80241+ if it's possible for any globbed object to match the entry we're
80242+ filling into the directory, then the object we find here will be
80243+ an anchor point with attached globbed objects
80244+ */
80245+ obj = chk_obj_label_noglob(dentry, mnt, task->acl);
80246+ if (obj->globbed == NULL)
80247+ return (obj->mode & GR_FIND) ? 1 : 0;
80248+
80249+ is_not_root = ((obj->filename[0] == '/') &&
80250+ (obj->filename[1] == '\0')) ? 0 : 1;
80251+ bufsize = PAGE_SIZE - namelen - is_not_root;
80252+
80253+ /* check bufsize > PAGE_SIZE || bufsize == 0 */
80254+ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
80255+ return 1;
80256+
80257+ preempt_disable();
80258+ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
80259+ bufsize);
80260+
80261+ bufsize = strlen(path);
80262+
80263+ /* if base is "/", don't append an additional slash */
80264+ if (is_not_root)
80265+ *(path + bufsize) = '/';
80266+ memcpy(path + bufsize + is_not_root, name, namelen);
80267+ *(path + bufsize + namelen + is_not_root) = '\0';
80268+
80269+ tmp = obj->globbed;
80270+ while (tmp) {
80271+ if (!glob_match(tmp->filename, path)) {
80272+ preempt_enable();
80273+ return (tmp->mode & GR_FIND) ? 1 : 0;
80274+ }
80275+ tmp = tmp->next;
80276+ }
80277+ preempt_enable();
80278+ return (obj->mode & GR_FIND) ? 1 : 0;
80279+}
80280+
80281+void gr_put_exec_file(struct task_struct *task)
80282+{
80283+ struct file *filp;
80284+
80285+ write_lock(&grsec_exec_file_lock);
80286+ filp = task->exec_file;
80287+ task->exec_file = NULL;
80288+ write_unlock(&grsec_exec_file_lock);
80289+
80290+ if (filp)
80291+ fput(filp);
80292+
80293+ return;
80294+}
80295+
80296+
80297+#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
80298+EXPORT_SYMBOL_GPL(gr_acl_is_enabled);
80299+#endif
80300+#ifdef CONFIG_SECURITY
80301+EXPORT_SYMBOL_GPL(gr_check_user_change);
80302+EXPORT_SYMBOL_GPL(gr_check_group_change);
80303+#endif
80304+
80305diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
80306new file mode 100644
80307index 0000000..9adc75c
80308--- /dev/null
80309+++ b/grsecurity/gracl_alloc.c
80310@@ -0,0 +1,105 @@
80311+#include <linux/kernel.h>
80312+#include <linux/mm.h>
80313+#include <linux/slab.h>
80314+#include <linux/vmalloc.h>
80315+#include <linux/gracl.h>
80316+#include <linux/grsecurity.h>
80317+
80318+static struct gr_alloc_state __current_alloc_state = { 1, 1, NULL };
80319+struct gr_alloc_state *current_alloc_state = &__current_alloc_state;
80320+
80321+static int
80322+alloc_pop(void)
80323+{
80324+ if (current_alloc_state->alloc_stack_next == 1)
80325+ return 0;
80326+
80327+ kfree(current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 2]);
80328+
80329+ current_alloc_state->alloc_stack_next--;
80330+
80331+ return 1;
80332+}
80333+
80334+static int
80335+alloc_push(void *buf)
80336+{
80337+ if (current_alloc_state->alloc_stack_next >= current_alloc_state->alloc_stack_size)
80338+ return 1;
80339+
80340+ current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 1] = buf;
80341+
80342+ current_alloc_state->alloc_stack_next++;
80343+
80344+ return 0;
80345+}
80346+
80347+void *
80348+acl_alloc(unsigned long len)
80349+{
80350+ void *ret = NULL;
80351+
80352+ if (!len || len > PAGE_SIZE)
80353+ goto out;
80354+
80355+ ret = kmalloc(len, GFP_KERNEL);
80356+
80357+ if (ret) {
80358+ if (alloc_push(ret)) {
80359+ kfree(ret);
80360+ ret = NULL;
80361+ }
80362+ }
80363+
80364+out:
80365+ return ret;
80366+}
80367+
80368+void *
80369+acl_alloc_num(unsigned long num, unsigned long len)
80370+{
80371+ if (!len || (num > (PAGE_SIZE / len)))
80372+ return NULL;
80373+
80374+ return acl_alloc(num * len);
80375+}
80376+
80377+void
80378+acl_free_all(void)
80379+{
80380+ if (!current_alloc_state->alloc_stack)
80381+ return;
80382+
80383+ while (alloc_pop()) ;
80384+
80385+ if (current_alloc_state->alloc_stack) {
80386+ if ((current_alloc_state->alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
80387+ kfree(current_alloc_state->alloc_stack);
80388+ else
80389+ vfree(current_alloc_state->alloc_stack);
80390+ }
80391+
80392+ current_alloc_state->alloc_stack = NULL;
80393+ current_alloc_state->alloc_stack_size = 1;
80394+ current_alloc_state->alloc_stack_next = 1;
80395+
80396+ return;
80397+}
80398+
80399+int
80400+acl_alloc_stack_init(unsigned long size)
80401+{
80402+ if ((size * sizeof (void *)) <= PAGE_SIZE)
80403+ current_alloc_state->alloc_stack =
80404+ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
80405+ else
80406+ current_alloc_state->alloc_stack = (void **) vmalloc(size * sizeof (void *));
80407+
80408+ current_alloc_state->alloc_stack_size = size;
80409+ current_alloc_state->alloc_stack_next = 1;
80410+
80411+ if (!current_alloc_state->alloc_stack)
80412+ return 0;
80413+ else
80414+ return 1;
80415+}
80416diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
80417new file mode 100644
80418index 0000000..1a94c11
80419--- /dev/null
80420+++ b/grsecurity/gracl_cap.c
80421@@ -0,0 +1,127 @@
80422+#include <linux/kernel.h>
80423+#include <linux/module.h>
80424+#include <linux/sched.h>
80425+#include <linux/gracl.h>
80426+#include <linux/grsecurity.h>
80427+#include <linux/grinternal.h>
80428+
80429+extern const char *captab_log[];
80430+extern int captab_log_entries;
80431+
80432+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
80433+{
80434+ struct acl_subject_label *curracl;
80435+
80436+ if (!gr_acl_is_enabled())
80437+ return 1;
80438+
80439+ curracl = task->acl;
80440+
80441+ if (curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
80442+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
80443+ task->role->roletype, GR_GLOBAL_UID(cred->uid),
80444+ GR_GLOBAL_GID(cred->gid), task->exec_file ?
80445+ gr_to_filename(task->exec_file->f_path.dentry,
80446+ task->exec_file->f_path.mnt) : curracl->filename,
80447+ curracl->filename, 0UL,
80448+ 0UL, "", (unsigned long) cap, &task->signal->saved_ip);
80449+ return 1;
80450+ }
80451+
80452+ return 0;
80453+}
80454+
80455+int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
80456+{
80457+ struct acl_subject_label *curracl;
80458+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
80459+ kernel_cap_t cap_audit = __cap_empty_set;
80460+
80461+ if (!gr_acl_is_enabled())
80462+ return 1;
80463+
80464+ curracl = task->acl;
80465+
80466+ cap_drop = curracl->cap_lower;
80467+ cap_mask = curracl->cap_mask;
80468+ cap_audit = curracl->cap_invert_audit;
80469+
80470+ while ((curracl = curracl->parent_subject)) {
80471+ /* if the cap isn't specified in the current computed mask but is specified in the
80472+ current level subject, and is lowered in the current level subject, then add
80473+ it to the set of dropped capabilities
80474+ otherwise, add the current level subject's mask to the current computed mask
80475+ */
80476+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
80477+ cap_raise(cap_mask, cap);
80478+ if (cap_raised(curracl->cap_lower, cap))
80479+ cap_raise(cap_drop, cap);
80480+ if (cap_raised(curracl->cap_invert_audit, cap))
80481+ cap_raise(cap_audit, cap);
80482+ }
80483+ }
80484+
80485+ if (!cap_raised(cap_drop, cap)) {
80486+ if (cap_raised(cap_audit, cap))
80487+ gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
80488+ return 1;
80489+ }
80490+
80491+ /* only learn the capability use if the process has the capability in the
80492+ general case, the two uses in sys.c of gr_learn_cap are an exception
80493+ to this rule to ensure any role transition involves what the full-learned
80494+ policy believes in a privileged process
80495+ */
80496+ if (cap_raised(cred->cap_effective, cap) && gr_learn_cap(task, cred, cap))
80497+ return 1;
80498+
80499+ if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
80500+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
80501+
80502+ return 0;
80503+}
80504+
80505+int
80506+gr_acl_is_capable(const int cap)
80507+{
80508+ return gr_task_acl_is_capable(current, current_cred(), cap);
80509+}
80510+
80511+int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
80512+{
80513+ struct acl_subject_label *curracl;
80514+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
80515+
80516+ if (!gr_acl_is_enabled())
80517+ return 1;
80518+
80519+ curracl = task->acl;
80520+
80521+ cap_drop = curracl->cap_lower;
80522+ cap_mask = curracl->cap_mask;
80523+
80524+ while ((curracl = curracl->parent_subject)) {
80525+ /* if the cap isn't specified in the current computed mask but is specified in the
80526+ current level subject, and is lowered in the current level subject, then add
80527+ it to the set of dropped capabilities
80528+ otherwise, add the current level subject's mask to the current computed mask
80529+ */
80530+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
80531+ cap_raise(cap_mask, cap);
80532+ if (cap_raised(curracl->cap_lower, cap))
80533+ cap_raise(cap_drop, cap);
80534+ }
80535+ }
80536+
80537+ if (!cap_raised(cap_drop, cap))
80538+ return 1;
80539+
80540+ return 0;
80541+}
80542+
80543+int
80544+gr_acl_is_capable_nolog(const int cap)
80545+{
80546+ return gr_task_acl_is_capable_nolog(current, cap);
80547+}
80548+
80549diff --git a/grsecurity/gracl_compat.c b/grsecurity/gracl_compat.c
80550new file mode 100644
80551index 0000000..a43dd06
80552--- /dev/null
80553+++ b/grsecurity/gracl_compat.c
80554@@ -0,0 +1,269 @@
80555+#include <linux/kernel.h>
80556+#include <linux/gracl.h>
80557+#include <linux/compat.h>
80558+#include <linux/gracl_compat.h>
80559+
80560+#include <asm/uaccess.h>
80561+
80562+int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap)
80563+{
80564+ struct gr_arg_wrapper_compat uwrapcompat;
80565+
80566+ if (copy_from_user(&uwrapcompat, buf, sizeof(uwrapcompat)))
80567+ return -EFAULT;
80568+
80569+ if ((uwrapcompat.version != GRSECURITY_VERSION) ||
80570+ (uwrapcompat.size != sizeof(struct gr_arg_compat)))
80571+ return -EINVAL;
80572+
80573+ uwrap->arg = compat_ptr(uwrapcompat.arg);
80574+ uwrap->version = uwrapcompat.version;
80575+ uwrap->size = sizeof(struct gr_arg);
80576+
80577+ return 0;
80578+}
80579+
80580+int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg)
80581+{
80582+ struct gr_arg_compat argcompat;
80583+
80584+ if (copy_from_user(&argcompat, buf, sizeof(argcompat)))
80585+ return -EFAULT;
80586+
80587+ arg->role_db.r_table = compat_ptr(argcompat.role_db.r_table);
80588+ arg->role_db.num_pointers = argcompat.role_db.num_pointers;
80589+ arg->role_db.num_roles = argcompat.role_db.num_roles;
80590+ arg->role_db.num_domain_children = argcompat.role_db.num_domain_children;
80591+ arg->role_db.num_subjects = argcompat.role_db.num_subjects;
80592+ arg->role_db.num_objects = argcompat.role_db.num_objects;
80593+
80594+ memcpy(&arg->pw, &argcompat.pw, sizeof(arg->pw));
80595+ memcpy(&arg->salt, &argcompat.salt, sizeof(arg->salt));
80596+ memcpy(&arg->sum, &argcompat.sum, sizeof(arg->sum));
80597+ memcpy(&arg->sp_role, &argcompat.sp_role, sizeof(arg->sp_role));
80598+ arg->sprole_pws = compat_ptr(argcompat.sprole_pws);
80599+ arg->segv_device = argcompat.segv_device;
80600+ arg->segv_inode = argcompat.segv_inode;
80601+ arg->segv_uid = argcompat.segv_uid;
80602+ arg->num_sprole_pws = argcompat.num_sprole_pws;
80603+ arg->mode = argcompat.mode;
80604+
80605+ return 0;
80606+}
80607+
80608+int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp)
80609+{
80610+ struct acl_object_label_compat objcompat;
80611+
80612+ if (copy_from_user(&objcompat, userp, sizeof(objcompat)))
80613+ return -EFAULT;
80614+
80615+ obj->filename = compat_ptr(objcompat.filename);
80616+ obj->inode = objcompat.inode;
80617+ obj->device = objcompat.device;
80618+ obj->mode = objcompat.mode;
80619+
80620+ obj->nested = compat_ptr(objcompat.nested);
80621+ obj->globbed = compat_ptr(objcompat.globbed);
80622+
80623+ obj->prev = compat_ptr(objcompat.prev);
80624+ obj->next = compat_ptr(objcompat.next);
80625+
80626+ return 0;
80627+}
80628+
80629+int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp)
80630+{
80631+ unsigned int i;
80632+ struct acl_subject_label_compat subjcompat;
80633+
80634+ if (copy_from_user(&subjcompat, userp, sizeof(subjcompat)))
80635+ return -EFAULT;
80636+
80637+ subj->filename = compat_ptr(subjcompat.filename);
80638+ subj->inode = subjcompat.inode;
80639+ subj->device = subjcompat.device;
80640+ subj->mode = subjcompat.mode;
80641+ subj->cap_mask = subjcompat.cap_mask;
80642+ subj->cap_lower = subjcompat.cap_lower;
80643+ subj->cap_invert_audit = subjcompat.cap_invert_audit;
80644+
80645+ for (i = 0; i < GR_NLIMITS; i++) {
80646+ if (subjcompat.res[i].rlim_cur == COMPAT_RLIM_INFINITY)
80647+ subj->res[i].rlim_cur = RLIM_INFINITY;
80648+ else
80649+ subj->res[i].rlim_cur = subjcompat.res[i].rlim_cur;
80650+ if (subjcompat.res[i].rlim_max == COMPAT_RLIM_INFINITY)
80651+ subj->res[i].rlim_max = RLIM_INFINITY;
80652+ else
80653+ subj->res[i].rlim_max = subjcompat.res[i].rlim_max;
80654+ }
80655+ subj->resmask = subjcompat.resmask;
80656+
80657+ subj->user_trans_type = subjcompat.user_trans_type;
80658+ subj->group_trans_type = subjcompat.group_trans_type;
80659+ subj->user_transitions = compat_ptr(subjcompat.user_transitions);
80660+ subj->group_transitions = compat_ptr(subjcompat.group_transitions);
80661+ subj->user_trans_num = subjcompat.user_trans_num;
80662+ subj->group_trans_num = subjcompat.group_trans_num;
80663+
80664+ memcpy(&subj->sock_families, &subjcompat.sock_families, sizeof(subj->sock_families));
80665+ memcpy(&subj->ip_proto, &subjcompat.ip_proto, sizeof(subj->ip_proto));
80666+ subj->ip_type = subjcompat.ip_type;
80667+ subj->ips = compat_ptr(subjcompat.ips);
80668+ subj->ip_num = subjcompat.ip_num;
80669+ subj->inaddr_any_override = subjcompat.inaddr_any_override;
80670+
80671+ subj->crashes = subjcompat.crashes;
80672+ subj->expires = subjcompat.expires;
80673+
80674+ subj->parent_subject = compat_ptr(subjcompat.parent_subject);
80675+ subj->hash = compat_ptr(subjcompat.hash);
80676+ subj->prev = compat_ptr(subjcompat.prev);
80677+ subj->next = compat_ptr(subjcompat.next);
80678+
80679+ subj->obj_hash = compat_ptr(subjcompat.obj_hash);
80680+ subj->obj_hash_size = subjcompat.obj_hash_size;
80681+ subj->pax_flags = subjcompat.pax_flags;
80682+
80683+ return 0;
80684+}
80685+
80686+int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp)
80687+{
80688+ struct acl_role_label_compat rolecompat;
80689+
80690+ if (copy_from_user(&rolecompat, userp, sizeof(rolecompat)))
80691+ return -EFAULT;
80692+
80693+ role->rolename = compat_ptr(rolecompat.rolename);
80694+ role->uidgid = rolecompat.uidgid;
80695+ role->roletype = rolecompat.roletype;
80696+
80697+ role->auth_attempts = rolecompat.auth_attempts;
80698+ role->expires = rolecompat.expires;
80699+
80700+ role->root_label = compat_ptr(rolecompat.root_label);
80701+ role->hash = compat_ptr(rolecompat.hash);
80702+
80703+ role->prev = compat_ptr(rolecompat.prev);
80704+ role->next = compat_ptr(rolecompat.next);
80705+
80706+ role->transitions = compat_ptr(rolecompat.transitions);
80707+ role->allowed_ips = compat_ptr(rolecompat.allowed_ips);
80708+ role->domain_children = compat_ptr(rolecompat.domain_children);
80709+ role->domain_child_num = rolecompat.domain_child_num;
80710+
80711+ role->umask = rolecompat.umask;
80712+
80713+ role->subj_hash = compat_ptr(rolecompat.subj_hash);
80714+ role->subj_hash_size = rolecompat.subj_hash_size;
80715+
80716+ return 0;
80717+}
80718+
80719+int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
80720+{
80721+ struct role_allowed_ip_compat roleip_compat;
80722+
80723+ if (copy_from_user(&roleip_compat, userp, sizeof(roleip_compat)))
80724+ return -EFAULT;
80725+
80726+ roleip->addr = roleip_compat.addr;
80727+ roleip->netmask = roleip_compat.netmask;
80728+
80729+ roleip->prev = compat_ptr(roleip_compat.prev);
80730+ roleip->next = compat_ptr(roleip_compat.next);
80731+
80732+ return 0;
80733+}
80734+
80735+int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp)
80736+{
80737+ struct role_transition_compat trans_compat;
80738+
80739+ if (copy_from_user(&trans_compat, userp, sizeof(trans_compat)))
80740+ return -EFAULT;
80741+
80742+ trans->rolename = compat_ptr(trans_compat.rolename);
80743+
80744+ trans->prev = compat_ptr(trans_compat.prev);
80745+ trans->next = compat_ptr(trans_compat.next);
80746+
80747+ return 0;
80748+
80749+}
80750+
80751+int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
80752+{
80753+ struct gr_hash_struct_compat hash_compat;
80754+
80755+ if (copy_from_user(&hash_compat, userp, sizeof(hash_compat)))
80756+ return -EFAULT;
80757+
80758+ hash->table = compat_ptr(hash_compat.table);
80759+ hash->nametable = compat_ptr(hash_compat.nametable);
80760+ hash->first = compat_ptr(hash_compat.first);
80761+
80762+ hash->table_size = hash_compat.table_size;
80763+ hash->used_size = hash_compat.used_size;
80764+
80765+ hash->type = hash_compat.type;
80766+
80767+ return 0;
80768+}
80769+
80770+int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp)
80771+{
80772+ compat_uptr_t ptrcompat;
80773+
80774+ if (copy_from_user(&ptrcompat, userp + (idx * sizeof(ptrcompat)), sizeof(ptrcompat)))
80775+ return -EFAULT;
80776+
80777+ *(void **)ptr = compat_ptr(ptrcompat);
80778+
80779+ return 0;
80780+}
80781+
80782+int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp)
80783+{
80784+ struct acl_ip_label_compat ip_compat;
80785+
80786+ if (copy_from_user(&ip_compat, userp, sizeof(ip_compat)))
80787+ return -EFAULT;
80788+
80789+ ip->iface = compat_ptr(ip_compat.iface);
80790+ ip->addr = ip_compat.addr;
80791+ ip->netmask = ip_compat.netmask;
80792+ ip->low = ip_compat.low;
80793+ ip->high = ip_compat.high;
80794+ ip->mode = ip_compat.mode;
80795+ ip->type = ip_compat.type;
80796+
80797+ memcpy(&ip->proto, &ip_compat.proto, sizeof(ip->proto));
80798+
80799+ ip->prev = compat_ptr(ip_compat.prev);
80800+ ip->next = compat_ptr(ip_compat.next);
80801+
80802+ return 0;
80803+}
80804+
80805+int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
80806+{
80807+ struct sprole_pw_compat pw_compat;
80808+
80809+ if (copy_from_user(&pw_compat, (const void *)userp + (sizeof(pw_compat) * idx), sizeof(pw_compat)))
80810+ return -EFAULT;
80811+
80812+ pw->rolename = compat_ptr(pw_compat.rolename);
80813+ memcpy(&pw->salt, pw_compat.salt, sizeof(pw->salt));
80814+ memcpy(&pw->sum, pw_compat.sum, sizeof(pw->sum));
80815+
80816+ return 0;
80817+}
80818+
80819+size_t get_gr_arg_wrapper_size_compat(void)
80820+{
80821+ return sizeof(struct gr_arg_wrapper_compat);
80822+}
80823+
80824diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
80825new file mode 100644
80826index 0000000..8ee8e4f
80827--- /dev/null
80828+++ b/grsecurity/gracl_fs.c
80829@@ -0,0 +1,447 @@
80830+#include <linux/kernel.h>
80831+#include <linux/sched.h>
80832+#include <linux/types.h>
80833+#include <linux/fs.h>
80834+#include <linux/file.h>
80835+#include <linux/stat.h>
80836+#include <linux/grsecurity.h>
80837+#include <linux/grinternal.h>
80838+#include <linux/gracl.h>
80839+
80840+umode_t
80841+gr_acl_umask(void)
80842+{
80843+ if (unlikely(!gr_acl_is_enabled()))
80844+ return 0;
80845+
80846+ return current->role->umask;
80847+}
80848+
80849+__u32
80850+gr_acl_handle_hidden_file(const struct dentry * dentry,
80851+ const struct vfsmount * mnt)
80852+{
80853+ __u32 mode;
80854+
80855+ if (unlikely(d_is_negative(dentry)))
80856+ return GR_FIND;
80857+
80858+ mode =
80859+ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
80860+
80861+ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
80862+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
80863+ return mode;
80864+ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
80865+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
80866+ return 0;
80867+ } else if (unlikely(!(mode & GR_FIND)))
80868+ return 0;
80869+
80870+ return GR_FIND;
80871+}
80872+
80873+__u32
80874+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
80875+ int acc_mode)
80876+{
80877+ __u32 reqmode = GR_FIND;
80878+ __u32 mode;
80879+
80880+ if (unlikely(d_is_negative(dentry)))
80881+ return reqmode;
80882+
80883+ if (acc_mode & MAY_APPEND)
80884+ reqmode |= GR_APPEND;
80885+ else if (acc_mode & MAY_WRITE)
80886+ reqmode |= GR_WRITE;
80887+ if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
80888+ reqmode |= GR_READ;
80889+
80890+ mode =
80891+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
80892+ mnt);
80893+
80894+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
80895+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
80896+ reqmode & GR_READ ? " reading" : "",
80897+ reqmode & GR_WRITE ? " writing" : reqmode &
80898+ GR_APPEND ? " appending" : "");
80899+ return reqmode;
80900+ } else
80901+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
80902+ {
80903+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
80904+ reqmode & GR_READ ? " reading" : "",
80905+ reqmode & GR_WRITE ? " writing" : reqmode &
80906+ GR_APPEND ? " appending" : "");
80907+ return 0;
80908+ } else if (unlikely((mode & reqmode) != reqmode))
80909+ return 0;
80910+
80911+ return reqmode;
80912+}
80913+
80914+__u32
80915+gr_acl_handle_creat(const struct dentry * dentry,
80916+ const struct dentry * p_dentry,
80917+ const struct vfsmount * p_mnt, int open_flags, int acc_mode,
80918+ const int imode)
80919+{
80920+ __u32 reqmode = GR_WRITE | GR_CREATE;
80921+ __u32 mode;
80922+
80923+ if (acc_mode & MAY_APPEND)
80924+ reqmode |= GR_APPEND;
80925+ // if a directory was required or the directory already exists, then
80926+ // don't count this open as a read
80927+ if ((acc_mode & MAY_READ) &&
80928+ !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
80929+ reqmode |= GR_READ;
80930+ if ((open_flags & O_CREAT) &&
80931+ ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
80932+ reqmode |= GR_SETID;
80933+
80934+ mode =
80935+ gr_check_create(dentry, p_dentry, p_mnt,
80936+ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
80937+
80938+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
80939+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
80940+ reqmode & GR_READ ? " reading" : "",
80941+ reqmode & GR_WRITE ? " writing" : reqmode &
80942+ GR_APPEND ? " appending" : "");
80943+ return reqmode;
80944+ } else
80945+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
80946+ {
80947+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
80948+ reqmode & GR_READ ? " reading" : "",
80949+ reqmode & GR_WRITE ? " writing" : reqmode &
80950+ GR_APPEND ? " appending" : "");
80951+ return 0;
80952+ } else if (unlikely((mode & reqmode) != reqmode))
80953+ return 0;
80954+
80955+ return reqmode;
80956+}
80957+
80958+__u32
80959+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
80960+ const int fmode)
80961+{
80962+ __u32 mode, reqmode = GR_FIND;
80963+
80964+ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
80965+ reqmode |= GR_EXEC;
80966+ if (fmode & S_IWOTH)
80967+ reqmode |= GR_WRITE;
80968+ if (fmode & S_IROTH)
80969+ reqmode |= GR_READ;
80970+
80971+ mode =
80972+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
80973+ mnt);
80974+
80975+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
80976+ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
80977+ reqmode & GR_READ ? " reading" : "",
80978+ reqmode & GR_WRITE ? " writing" : "",
80979+ reqmode & GR_EXEC ? " executing" : "");
80980+ return reqmode;
80981+ } else
80982+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
80983+ {
80984+ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
80985+ reqmode & GR_READ ? " reading" : "",
80986+ reqmode & GR_WRITE ? " writing" : "",
80987+ reqmode & GR_EXEC ? " executing" : "");
80988+ return 0;
80989+ } else if (unlikely((mode & reqmode) != reqmode))
80990+ return 0;
80991+
80992+ return reqmode;
80993+}
80994+
80995+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
80996+{
80997+ __u32 mode;
80998+
80999+ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
81000+
81001+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
81002+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
81003+ return mode;
81004+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
81005+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
81006+ return 0;
81007+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
81008+ return 0;
81009+
81010+ return (reqmode);
81011+}
81012+
81013+__u32
81014+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
81015+{
81016+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
81017+}
81018+
81019+__u32
81020+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
81021+{
81022+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
81023+}
81024+
81025+__u32
81026+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
81027+{
81028+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
81029+}
81030+
81031+__u32
81032+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
81033+{
81034+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
81035+}
81036+
81037+__u32
81038+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
81039+ umode_t *modeptr)
81040+{
81041+ umode_t mode;
81042+
81043+ *modeptr &= ~gr_acl_umask();
81044+ mode = *modeptr;
81045+
81046+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
81047+ return 1;
81048+
81049+ if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
81050+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
81051+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
81052+ GR_CHMOD_ACL_MSG);
81053+ } else {
81054+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
81055+ }
81056+}
81057+
81058+__u32
81059+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
81060+{
81061+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
81062+}
81063+
81064+__u32
81065+gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
81066+{
81067+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
81068+}
81069+
81070+__u32
81071+gr_acl_handle_removexattr(const struct dentry *dentry, const struct vfsmount *mnt)
81072+{
81073+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_REMOVEXATTR_ACL_MSG);
81074+}
81075+
81076+__u32
81077+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
81078+{
81079+ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
81080+}
81081+
81082+__u32
81083+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
81084+{
81085+ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
81086+ GR_UNIXCONNECT_ACL_MSG);
81087+}
81088+
81089+/* hardlinks require at minimum create and link permission,
81090+ any additional privilege required is based on the
81091+ privilege of the file being linked to
81092+*/
81093+__u32
81094+gr_acl_handle_link(const struct dentry * new_dentry,
81095+ const struct dentry * parent_dentry,
81096+ const struct vfsmount * parent_mnt,
81097+ const struct dentry * old_dentry,
81098+ const struct vfsmount * old_mnt, const struct filename *to)
81099+{
81100+ __u32 mode;
81101+ __u32 needmode = GR_CREATE | GR_LINK;
81102+ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
81103+
81104+ mode =
81105+ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
81106+ old_mnt);
81107+
81108+ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
81109+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
81110+ return mode;
81111+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
81112+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
81113+ return 0;
81114+ } else if (unlikely((mode & needmode) != needmode))
81115+ return 0;
81116+
81117+ return 1;
81118+}
81119+
81120+__u32
81121+gr_acl_handle_symlink(const struct dentry * new_dentry,
81122+ const struct dentry * parent_dentry,
81123+ const struct vfsmount * parent_mnt, const struct filename *from)
81124+{
81125+ __u32 needmode = GR_WRITE | GR_CREATE;
81126+ __u32 mode;
81127+
81128+ mode =
81129+ gr_check_create(new_dentry, parent_dentry, parent_mnt,
81130+ GR_CREATE | GR_AUDIT_CREATE |
81131+ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
81132+
81133+ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
81134+ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
81135+ return mode;
81136+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
81137+ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
81138+ return 0;
81139+ } else if (unlikely((mode & needmode) != needmode))
81140+ return 0;
81141+
81142+ return (GR_WRITE | GR_CREATE);
81143+}
81144+
81145+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)
81146+{
81147+ __u32 mode;
81148+
81149+ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
81150+
81151+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
81152+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
81153+ return mode;
81154+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
81155+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
81156+ return 0;
81157+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
81158+ return 0;
81159+
81160+ return (reqmode);
81161+}
81162+
81163+__u32
81164+gr_acl_handle_mknod(const struct dentry * new_dentry,
81165+ const struct dentry * parent_dentry,
81166+ const struct vfsmount * parent_mnt,
81167+ const int mode)
81168+{
81169+ __u32 reqmode = GR_WRITE | GR_CREATE;
81170+ if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
81171+ reqmode |= GR_SETID;
81172+
81173+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
81174+ reqmode, GR_MKNOD_ACL_MSG);
81175+}
81176+
81177+__u32
81178+gr_acl_handle_mkdir(const struct dentry *new_dentry,
81179+ const struct dentry *parent_dentry,
81180+ const struct vfsmount *parent_mnt)
81181+{
81182+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
81183+ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
81184+}
81185+
81186+#define RENAME_CHECK_SUCCESS(old, new) \
81187+ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
81188+ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
81189+
81190+int
81191+gr_acl_handle_rename(struct dentry *new_dentry,
81192+ struct dentry *parent_dentry,
81193+ const struct vfsmount *parent_mnt,
81194+ struct dentry *old_dentry,
81195+ struct inode *old_parent_inode,
81196+ struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags)
81197+{
81198+ __u32 comp1, comp2;
81199+ int error = 0;
81200+
81201+ if (unlikely(!gr_acl_is_enabled()))
81202+ return 0;
81203+
81204+ if (flags & RENAME_EXCHANGE) {
81205+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
81206+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81207+ GR_SUPPRESS, parent_mnt);
81208+ comp2 =
81209+ gr_search_file(old_dentry,
81210+ GR_READ | GR_WRITE | GR_AUDIT_READ |
81211+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
81212+ } else if (d_is_negative(new_dentry)) {
81213+ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
81214+ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
81215+ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
81216+ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
81217+ GR_DELETE | GR_AUDIT_DELETE |
81218+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81219+ GR_SUPPRESS, old_mnt);
81220+ } else {
81221+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
81222+ GR_CREATE | GR_DELETE |
81223+ GR_AUDIT_CREATE | GR_AUDIT_DELETE |
81224+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81225+ GR_SUPPRESS, parent_mnt);
81226+ comp2 =
81227+ gr_search_file(old_dentry,
81228+ GR_READ | GR_WRITE | GR_AUDIT_READ |
81229+ GR_DELETE | GR_AUDIT_DELETE |
81230+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
81231+ }
81232+
81233+ if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
81234+ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
81235+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
81236+ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
81237+ && !(comp2 & GR_SUPPRESS)) {
81238+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
81239+ error = -EACCES;
81240+ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
81241+ error = -EACCES;
81242+
81243+ return error;
81244+}
81245+
81246+void
81247+gr_acl_handle_exit(void)
81248+{
81249+ u16 id;
81250+ char *rolename;
81251+
81252+ if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
81253+ !(current->role->roletype & GR_ROLE_PERSIST))) {
81254+ id = current->acl_role_id;
81255+ rolename = current->role->rolename;
81256+ gr_set_acls(1);
81257+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
81258+ }
81259+
81260+ gr_put_exec_file(current);
81261+ return;
81262+}
81263+
81264+int
81265+gr_acl_handle_procpidmem(const struct task_struct *task)
81266+{
81267+ if (unlikely(!gr_acl_is_enabled()))
81268+ return 0;
81269+
81270+ if (task != current && (task->acl->mode & GR_PROTPROCFD) &&
81271+ !(current->acl->mode & GR_POVERRIDE) &&
81272+ !(current->role->roletype & GR_ROLE_GOD))
81273+ return -EACCES;
81274+
81275+ return 0;
81276+}
81277diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
81278new file mode 100644
81279index 0000000..f056b81
81280--- /dev/null
81281+++ b/grsecurity/gracl_ip.c
81282@@ -0,0 +1,386 @@
81283+#include <linux/kernel.h>
81284+#include <asm/uaccess.h>
81285+#include <asm/errno.h>
81286+#include <net/sock.h>
81287+#include <linux/file.h>
81288+#include <linux/fs.h>
81289+#include <linux/net.h>
81290+#include <linux/in.h>
81291+#include <linux/skbuff.h>
81292+#include <linux/ip.h>
81293+#include <linux/udp.h>
81294+#include <linux/types.h>
81295+#include <linux/sched.h>
81296+#include <linux/netdevice.h>
81297+#include <linux/inetdevice.h>
81298+#include <linux/gracl.h>
81299+#include <linux/grsecurity.h>
81300+#include <linux/grinternal.h>
81301+
81302+#define GR_BIND 0x01
81303+#define GR_CONNECT 0x02
81304+#define GR_INVERT 0x04
81305+#define GR_BINDOVERRIDE 0x08
81306+#define GR_CONNECTOVERRIDE 0x10
81307+#define GR_SOCK_FAMILY 0x20
81308+
81309+static const char * gr_protocols[IPPROTO_MAX] = {
81310+ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
81311+ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
81312+ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
81313+ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
81314+ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
81315+ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
81316+ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
81317+ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
81318+ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
81319+ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
81320+ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
81321+ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
81322+ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
81323+ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
81324+ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
81325+ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
81326+ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
81327+ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
81328+ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
81329+ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
81330+ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
81331+ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
81332+ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
81333+ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
81334+ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
81335+ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
81336+ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
81337+ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
81338+ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
81339+ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
81340+ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
81341+ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
81342+ };
81343+
81344+static const char * gr_socktypes[SOCK_MAX] = {
81345+ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
81346+ "unknown:7", "unknown:8", "unknown:9", "packet"
81347+ };
81348+
81349+static const char * gr_sockfamilies[AF_MAX+1] = {
81350+ "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
81351+ "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
81352+ "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
81353+ "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
81354+ };
81355+
81356+const char *
81357+gr_proto_to_name(unsigned char proto)
81358+{
81359+ return gr_protocols[proto];
81360+}
81361+
81362+const char *
81363+gr_socktype_to_name(unsigned char type)
81364+{
81365+ return gr_socktypes[type];
81366+}
81367+
81368+const char *
81369+gr_sockfamily_to_name(unsigned char family)
81370+{
81371+ return gr_sockfamilies[family];
81372+}
81373+
81374+extern const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
81375+
81376+int
81377+gr_search_socket(const int domain, const int type, const int protocol)
81378+{
81379+ struct acl_subject_label *curr;
81380+ const struct cred *cred = current_cred();
81381+
81382+ if (unlikely(!gr_acl_is_enabled()))
81383+ goto exit;
81384+
81385+ if ((domain < 0) || (type < 0) || (protocol < 0) ||
81386+ (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
81387+ goto exit; // let the kernel handle it
81388+
81389+ curr = current->acl;
81390+
81391+ if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
81392+ /* the family is allowed, if this is PF_INET allow it only if
81393+ the extra sock type/protocol checks pass */
81394+ if (domain == PF_INET)
81395+ goto inet_check;
81396+ goto exit;
81397+ } else {
81398+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81399+ __u32 fakeip = 0;
81400+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81401+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81402+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81403+ gr_to_filename(current->exec_file->f_path.dentry,
81404+ current->exec_file->f_path.mnt) :
81405+ curr->filename, curr->filename,
81406+ &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
81407+ &current->signal->saved_ip);
81408+ goto exit;
81409+ }
81410+ goto exit_fail;
81411+ }
81412+
81413+inet_check:
81414+ /* the rest of this checking is for IPv4 only */
81415+ if (!curr->ips)
81416+ goto exit;
81417+
81418+ if ((curr->ip_type & (1U << type)) &&
81419+ (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
81420+ goto exit;
81421+
81422+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81423+ /* we don't place acls on raw sockets , and sometimes
81424+ dgram/ip sockets are opened for ioctl and not
81425+ bind/connect, so we'll fake a bind learn log */
81426+ if (type == SOCK_RAW || type == SOCK_PACKET) {
81427+ __u32 fakeip = 0;
81428+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81429+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81430+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81431+ gr_to_filename(current->exec_file->f_path.dentry,
81432+ current->exec_file->f_path.mnt) :
81433+ curr->filename, curr->filename,
81434+ &fakeip, 0, type,
81435+ protocol, GR_CONNECT, &current->signal->saved_ip);
81436+ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
81437+ __u32 fakeip = 0;
81438+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81439+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81440+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81441+ gr_to_filename(current->exec_file->f_path.dentry,
81442+ current->exec_file->f_path.mnt) :
81443+ curr->filename, curr->filename,
81444+ &fakeip, 0, type,
81445+ protocol, GR_BIND, &current->signal->saved_ip);
81446+ }
81447+ /* we'll log when they use connect or bind */
81448+ goto exit;
81449+ }
81450+
81451+exit_fail:
81452+ if (domain == PF_INET)
81453+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain),
81454+ gr_socktype_to_name(type), gr_proto_to_name(protocol));
81455+ else if (rcu_access_pointer(net_families[domain]) != NULL)
81456+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain),
81457+ gr_socktype_to_name(type), protocol);
81458+
81459+ return 0;
81460+exit:
81461+ return 1;
81462+}
81463+
81464+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)
81465+{
81466+ if ((ip->mode & mode) &&
81467+ (ip_port >= ip->low) &&
81468+ (ip_port <= ip->high) &&
81469+ ((ntohl(ip_addr) & our_netmask) ==
81470+ (ntohl(our_addr) & our_netmask))
81471+ && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
81472+ && (ip->type & (1U << type))) {
81473+ if (ip->mode & GR_INVERT)
81474+ return 2; // specifically denied
81475+ else
81476+ return 1; // allowed
81477+ }
81478+
81479+ return 0; // not specifically allowed, may continue parsing
81480+}
81481+
81482+static int
81483+gr_search_connectbind(const int full_mode, struct sock *sk,
81484+ struct sockaddr_in *addr, const int type)
81485+{
81486+ char iface[IFNAMSIZ] = {0};
81487+ struct acl_subject_label *curr;
81488+ struct acl_ip_label *ip;
81489+ struct inet_sock *isk;
81490+ struct net_device *dev;
81491+ struct in_device *idev;
81492+ unsigned long i;
81493+ int ret;
81494+ int mode = full_mode & (GR_BIND | GR_CONNECT);
81495+ __u32 ip_addr = 0;
81496+ __u32 our_addr;
81497+ __u32 our_netmask;
81498+ char *p;
81499+ __u16 ip_port = 0;
81500+ const struct cred *cred = current_cred();
81501+
81502+ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
81503+ return 0;
81504+
81505+ curr = current->acl;
81506+ isk = inet_sk(sk);
81507+
81508+ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
81509+ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
81510+ addr->sin_addr.s_addr = curr->inaddr_any_override;
81511+ if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
81512+ struct sockaddr_in saddr;
81513+ int err;
81514+
81515+ saddr.sin_family = AF_INET;
81516+ saddr.sin_addr.s_addr = curr->inaddr_any_override;
81517+ saddr.sin_port = isk->inet_sport;
81518+
81519+ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
81520+ if (err)
81521+ return err;
81522+
81523+ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
81524+ if (err)
81525+ return err;
81526+ }
81527+
81528+ if (!curr->ips)
81529+ return 0;
81530+
81531+ ip_addr = addr->sin_addr.s_addr;
81532+ ip_port = ntohs(addr->sin_port);
81533+
81534+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81535+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81536+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81537+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81538+ gr_to_filename(current->exec_file->f_path.dentry,
81539+ current->exec_file->f_path.mnt) :
81540+ curr->filename, curr->filename,
81541+ &ip_addr, ip_port, type,
81542+ sk->sk_protocol, mode, &current->signal->saved_ip);
81543+ return 0;
81544+ }
81545+
81546+ for (i = 0; i < curr->ip_num; i++) {
81547+ ip = *(curr->ips + i);
81548+ if (ip->iface != NULL) {
81549+ strncpy(iface, ip->iface, IFNAMSIZ - 1);
81550+ p = strchr(iface, ':');
81551+ if (p != NULL)
81552+ *p = '\0';
81553+ dev = dev_get_by_name(sock_net(sk), iface);
81554+ if (dev == NULL)
81555+ continue;
81556+ idev = in_dev_get(dev);
81557+ if (idev == NULL) {
81558+ dev_put(dev);
81559+ continue;
81560+ }
81561+ rcu_read_lock();
81562+ for_ifa(idev) {
81563+ if (!strcmp(ip->iface, ifa->ifa_label)) {
81564+ our_addr = ifa->ifa_address;
81565+ our_netmask = 0xffffffff;
81566+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
81567+ if (ret == 1) {
81568+ rcu_read_unlock();
81569+ in_dev_put(idev);
81570+ dev_put(dev);
81571+ return 0;
81572+ } else if (ret == 2) {
81573+ rcu_read_unlock();
81574+ in_dev_put(idev);
81575+ dev_put(dev);
81576+ goto denied;
81577+ }
81578+ }
81579+ } endfor_ifa(idev);
81580+ rcu_read_unlock();
81581+ in_dev_put(idev);
81582+ dev_put(dev);
81583+ } else {
81584+ our_addr = ip->addr;
81585+ our_netmask = ip->netmask;
81586+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
81587+ if (ret == 1)
81588+ return 0;
81589+ else if (ret == 2)
81590+ goto denied;
81591+ }
81592+ }
81593+
81594+denied:
81595+ if (mode == GR_BIND)
81596+ 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));
81597+ else if (mode == GR_CONNECT)
81598+ 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));
81599+
81600+ return -EACCES;
81601+}
81602+
81603+int
81604+gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
81605+{
81606+ /* always allow disconnection of dgram sockets with connect */
81607+ if (addr->sin_family == AF_UNSPEC)
81608+ return 0;
81609+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
81610+}
81611+
81612+int
81613+gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
81614+{
81615+ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
81616+}
81617+
81618+int gr_search_listen(struct socket *sock)
81619+{
81620+ struct sock *sk = sock->sk;
81621+ struct sockaddr_in addr;
81622+
81623+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
81624+ addr.sin_port = inet_sk(sk)->inet_sport;
81625+
81626+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
81627+}
81628+
81629+int gr_search_accept(struct socket *sock)
81630+{
81631+ struct sock *sk = sock->sk;
81632+ struct sockaddr_in addr;
81633+
81634+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
81635+ addr.sin_port = inet_sk(sk)->inet_sport;
81636+
81637+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
81638+}
81639+
81640+int
81641+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
81642+{
81643+ if (addr)
81644+ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
81645+ else {
81646+ struct sockaddr_in sin;
81647+ const struct inet_sock *inet = inet_sk(sk);
81648+
81649+ sin.sin_addr.s_addr = inet->inet_daddr;
81650+ sin.sin_port = inet->inet_dport;
81651+
81652+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
81653+ }
81654+}
81655+
81656+int
81657+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
81658+{
81659+ struct sockaddr_in sin;
81660+
81661+ if (unlikely(skb->len < sizeof (struct udphdr)))
81662+ return 0; // skip this packet
81663+
81664+ sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
81665+ sin.sin_port = udp_hdr(skb)->source;
81666+
81667+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
81668+}
81669diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
81670new file mode 100644
81671index 0000000..25f54ef
81672--- /dev/null
81673+++ b/grsecurity/gracl_learn.c
81674@@ -0,0 +1,207 @@
81675+#include <linux/kernel.h>
81676+#include <linux/mm.h>
81677+#include <linux/sched.h>
81678+#include <linux/poll.h>
81679+#include <linux/string.h>
81680+#include <linux/file.h>
81681+#include <linux/types.h>
81682+#include <linux/vmalloc.h>
81683+#include <linux/grinternal.h>
81684+
81685+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
81686+ size_t count, loff_t *ppos);
81687+extern int gr_acl_is_enabled(void);
81688+
81689+static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
81690+static int gr_learn_attached;
81691+
81692+/* use a 512k buffer */
81693+#define LEARN_BUFFER_SIZE (512 * 1024)
81694+
81695+static DEFINE_SPINLOCK(gr_learn_lock);
81696+static DEFINE_MUTEX(gr_learn_user_mutex);
81697+
81698+/* we need to maintain two buffers, so that the kernel context of grlearn
81699+ uses a semaphore around the userspace copying, and the other kernel contexts
81700+ use a spinlock when copying into the buffer, since they cannot sleep
81701+*/
81702+static char *learn_buffer;
81703+static char *learn_buffer_user;
81704+static int learn_buffer_len;
81705+static int learn_buffer_user_len;
81706+
81707+static ssize_t
81708+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
81709+{
81710+ DECLARE_WAITQUEUE(wait, current);
81711+ ssize_t retval = 0;
81712+
81713+ add_wait_queue(&learn_wait, &wait);
81714+ set_current_state(TASK_INTERRUPTIBLE);
81715+ do {
81716+ mutex_lock(&gr_learn_user_mutex);
81717+ spin_lock(&gr_learn_lock);
81718+ if (learn_buffer_len)
81719+ break;
81720+ spin_unlock(&gr_learn_lock);
81721+ mutex_unlock(&gr_learn_user_mutex);
81722+ if (file->f_flags & O_NONBLOCK) {
81723+ retval = -EAGAIN;
81724+ goto out;
81725+ }
81726+ if (signal_pending(current)) {
81727+ retval = -ERESTARTSYS;
81728+ goto out;
81729+ }
81730+
81731+ schedule();
81732+ } while (1);
81733+
81734+ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
81735+ learn_buffer_user_len = learn_buffer_len;
81736+ retval = learn_buffer_len;
81737+ learn_buffer_len = 0;
81738+
81739+ spin_unlock(&gr_learn_lock);
81740+
81741+ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
81742+ retval = -EFAULT;
81743+
81744+ mutex_unlock(&gr_learn_user_mutex);
81745+out:
81746+ set_current_state(TASK_RUNNING);
81747+ remove_wait_queue(&learn_wait, &wait);
81748+ return retval;
81749+}
81750+
81751+static unsigned int
81752+poll_learn(struct file * file, poll_table * wait)
81753+{
81754+ poll_wait(file, &learn_wait, wait);
81755+
81756+ if (learn_buffer_len)
81757+ return (POLLIN | POLLRDNORM);
81758+
81759+ return 0;
81760+}
81761+
81762+void
81763+gr_clear_learn_entries(void)
81764+{
81765+ char *tmp;
81766+
81767+ mutex_lock(&gr_learn_user_mutex);
81768+ spin_lock(&gr_learn_lock);
81769+ tmp = learn_buffer;
81770+ learn_buffer = NULL;
81771+ spin_unlock(&gr_learn_lock);
81772+ if (tmp)
81773+ vfree(tmp);
81774+ if (learn_buffer_user != NULL) {
81775+ vfree(learn_buffer_user);
81776+ learn_buffer_user = NULL;
81777+ }
81778+ learn_buffer_len = 0;
81779+ mutex_unlock(&gr_learn_user_mutex);
81780+
81781+ return;
81782+}
81783+
81784+void
81785+gr_add_learn_entry(const char *fmt, ...)
81786+{
81787+ va_list args;
81788+ unsigned int len;
81789+
81790+ if (!gr_learn_attached)
81791+ return;
81792+
81793+ spin_lock(&gr_learn_lock);
81794+
81795+ /* leave a gap at the end so we know when it's "full" but don't have to
81796+ compute the exact length of the string we're trying to append
81797+ */
81798+ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
81799+ spin_unlock(&gr_learn_lock);
81800+ wake_up_interruptible(&learn_wait);
81801+ return;
81802+ }
81803+ if (learn_buffer == NULL) {
81804+ spin_unlock(&gr_learn_lock);
81805+ return;
81806+ }
81807+
81808+ va_start(args, fmt);
81809+ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
81810+ va_end(args);
81811+
81812+ learn_buffer_len += len + 1;
81813+
81814+ spin_unlock(&gr_learn_lock);
81815+ wake_up_interruptible(&learn_wait);
81816+
81817+ return;
81818+}
81819+
81820+static int
81821+open_learn(struct inode *inode, struct file *file)
81822+{
81823+ if (file->f_mode & FMODE_READ && gr_learn_attached)
81824+ return -EBUSY;
81825+ if (file->f_mode & FMODE_READ) {
81826+ int retval = 0;
81827+ mutex_lock(&gr_learn_user_mutex);
81828+ if (learn_buffer == NULL)
81829+ learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
81830+ if (learn_buffer_user == NULL)
81831+ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
81832+ if (learn_buffer == NULL) {
81833+ retval = -ENOMEM;
81834+ goto out_error;
81835+ }
81836+ if (learn_buffer_user == NULL) {
81837+ retval = -ENOMEM;
81838+ goto out_error;
81839+ }
81840+ learn_buffer_len = 0;
81841+ learn_buffer_user_len = 0;
81842+ gr_learn_attached = 1;
81843+out_error:
81844+ mutex_unlock(&gr_learn_user_mutex);
81845+ return retval;
81846+ }
81847+ return 0;
81848+}
81849+
81850+static int
81851+close_learn(struct inode *inode, struct file *file)
81852+{
81853+ if (file->f_mode & FMODE_READ) {
81854+ char *tmp = NULL;
81855+ mutex_lock(&gr_learn_user_mutex);
81856+ spin_lock(&gr_learn_lock);
81857+ tmp = learn_buffer;
81858+ learn_buffer = NULL;
81859+ spin_unlock(&gr_learn_lock);
81860+ if (tmp)
81861+ vfree(tmp);
81862+ if (learn_buffer_user != NULL) {
81863+ vfree(learn_buffer_user);
81864+ learn_buffer_user = NULL;
81865+ }
81866+ learn_buffer_len = 0;
81867+ learn_buffer_user_len = 0;
81868+ gr_learn_attached = 0;
81869+ mutex_unlock(&gr_learn_user_mutex);
81870+ }
81871+
81872+ return 0;
81873+}
81874+
81875+const struct file_operations grsec_fops = {
81876+ .read = read_learn,
81877+ .write = write_grsec_handler,
81878+ .open = open_learn,
81879+ .release = close_learn,
81880+ .poll = poll_learn,
81881+};
81882diff --git a/grsecurity/gracl_policy.c b/grsecurity/gracl_policy.c
81883new file mode 100644
81884index 0000000..fd26052
81885--- /dev/null
81886+++ b/grsecurity/gracl_policy.c
81887@@ -0,0 +1,1781 @@
81888+#include <linux/kernel.h>
81889+#include <linux/module.h>
81890+#include <linux/sched.h>
81891+#include <linux/mm.h>
81892+#include <linux/file.h>
81893+#include <linux/fs.h>
81894+#include <linux/namei.h>
81895+#include <linux/mount.h>
81896+#include <linux/tty.h>
81897+#include <linux/proc_fs.h>
81898+#include <linux/lglock.h>
81899+#include <linux/slab.h>
81900+#include <linux/vmalloc.h>
81901+#include <linux/types.h>
81902+#include <linux/sysctl.h>
81903+#include <linux/netdevice.h>
81904+#include <linux/ptrace.h>
81905+#include <linux/gracl.h>
81906+#include <linux/gralloc.h>
81907+#include <linux/security.h>
81908+#include <linux/grinternal.h>
81909+#include <linux/pid_namespace.h>
81910+#include <linux/stop_machine.h>
81911+#include <linux/fdtable.h>
81912+#include <linux/percpu.h>
81913+#include <linux/lglock.h>
81914+#include <linux/hugetlb.h>
81915+#include <linux/posix-timers.h>
81916+#include "../fs/mount.h"
81917+
81918+#include <asm/uaccess.h>
81919+#include <asm/errno.h>
81920+#include <asm/mman.h>
81921+
81922+extern struct gr_policy_state *polstate;
81923+
81924+#define FOR_EACH_ROLE_START(role) \
81925+ role = polstate->role_list; \
81926+ while (role) {
81927+
81928+#define FOR_EACH_ROLE_END(role) \
81929+ role = role->prev; \
81930+ }
81931+
81932+struct path gr_real_root;
81933+
81934+extern struct gr_alloc_state *current_alloc_state;
81935+
81936+u16 acl_sp_role_value;
81937+
81938+static DEFINE_MUTEX(gr_dev_mutex);
81939+
81940+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
81941+extern void gr_clear_learn_entries(void);
81942+
81943+struct gr_arg *gr_usermode __read_only;
81944+unsigned char *gr_system_salt __read_only;
81945+unsigned char *gr_system_sum __read_only;
81946+
81947+static unsigned int gr_auth_attempts = 0;
81948+static unsigned long gr_auth_expires = 0UL;
81949+
81950+struct acl_object_label *fakefs_obj_rw;
81951+struct acl_object_label *fakefs_obj_rwx;
81952+
81953+extern int gr_init_uidset(void);
81954+extern void gr_free_uidset(void);
81955+extern void gr_remove_uid(uid_t uid);
81956+extern int gr_find_uid(uid_t uid);
81957+
81958+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);
81959+extern void __gr_apply_subject_to_task(struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj);
81960+extern int gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb);
81961+extern void __insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry);
81962+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);
81963+extern void insert_acl_obj_label(struct acl_object_label *obj, struct acl_subject_label *subj);
81964+extern void insert_acl_subj_label(struct acl_subject_label *obj, struct acl_role_label *role);
81965+extern struct name_entry * __lookup_name_entry(const struct gr_policy_state *state, const char *name);
81966+extern char *gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt);
81967+extern struct acl_subject_label *lookup_acl_subj_label(const u64 ino, const dev_t dev, const struct acl_role_label *role);
81968+extern struct acl_subject_label *lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev, const struct acl_role_label *role);
81969+extern void assign_special_role(const char *rolename);
81970+extern struct acl_subject_label *chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, const struct acl_role_label *role);
81971+extern int gr_rbac_disable(void *unused);
81972+extern void gr_enable_rbac_system(void);
81973+
81974+static int copy_acl_object_label_normal(struct acl_object_label *obj, const struct acl_object_label *userp)
81975+{
81976+ if (copy_from_user(obj, userp, sizeof(struct acl_object_label)))
81977+ return -EFAULT;
81978+
81979+ return 0;
81980+}
81981+
81982+static int copy_acl_ip_label_normal(struct acl_ip_label *ip, const struct acl_ip_label *userp)
81983+{
81984+ if (copy_from_user(ip, userp, sizeof(struct acl_ip_label)))
81985+ return -EFAULT;
81986+
81987+ return 0;
81988+}
81989+
81990+static int copy_acl_subject_label_normal(struct acl_subject_label *subj, const struct acl_subject_label *userp)
81991+{
81992+ if (copy_from_user(subj, userp, sizeof(struct acl_subject_label)))
81993+ return -EFAULT;
81994+
81995+ return 0;
81996+}
81997+
81998+static int copy_acl_role_label_normal(struct acl_role_label *role, const struct acl_role_label *userp)
81999+{
82000+ if (copy_from_user(role, userp, sizeof(struct acl_role_label)))
82001+ return -EFAULT;
82002+
82003+ return 0;
82004+}
82005+
82006+static int copy_role_allowed_ip_normal(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
82007+{
82008+ if (copy_from_user(roleip, userp, sizeof(struct role_allowed_ip)))
82009+ return -EFAULT;
82010+
82011+ return 0;
82012+}
82013+
82014+static int copy_sprole_pw_normal(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
82015+{
82016+ if (copy_from_user(pw, userp + idx, sizeof(struct sprole_pw)))
82017+ return -EFAULT;
82018+
82019+ return 0;
82020+}
82021+
82022+static int copy_gr_hash_struct_normal(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
82023+{
82024+ if (copy_from_user(hash, userp, sizeof(struct gr_hash_struct)))
82025+ return -EFAULT;
82026+
82027+ return 0;
82028+}
82029+
82030+static int copy_role_transition_normal(struct role_transition *trans, const struct role_transition *userp)
82031+{
82032+ if (copy_from_user(trans, userp, sizeof(struct role_transition)))
82033+ return -EFAULT;
82034+
82035+ return 0;
82036+}
82037+
82038+int copy_pointer_from_array_normal(void *ptr, unsigned long idx, const void *userp)
82039+{
82040+ if (copy_from_user(ptr, userp + (idx * sizeof(void *)), sizeof(void *)))
82041+ return -EFAULT;
82042+
82043+ return 0;
82044+}
82045+
82046+static int copy_gr_arg_wrapper_normal(const char __user *buf, struct gr_arg_wrapper *uwrap)
82047+{
82048+ if (copy_from_user(uwrap, buf, sizeof (struct gr_arg_wrapper)))
82049+ return -EFAULT;
82050+
82051+ if ((uwrap->version != GRSECURITY_VERSION) ||
82052+ (uwrap->size != sizeof(struct gr_arg)))
82053+ return -EINVAL;
82054+
82055+ return 0;
82056+}
82057+
82058+static int copy_gr_arg_normal(const struct gr_arg __user *buf, struct gr_arg *arg)
82059+{
82060+ if (copy_from_user(arg, buf, sizeof (struct gr_arg)))
82061+ return -EFAULT;
82062+
82063+ return 0;
82064+}
82065+
82066+static size_t get_gr_arg_wrapper_size_normal(void)
82067+{
82068+ return sizeof(struct gr_arg_wrapper);
82069+}
82070+
82071+#ifdef CONFIG_COMPAT
82072+extern int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap);
82073+extern int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg);
82074+extern int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp);
82075+extern int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp);
82076+extern int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp);
82077+extern int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp);
82078+extern int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp);
82079+extern int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp);
82080+extern int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp);
82081+extern int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp);
82082+extern int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp);
82083+extern size_t get_gr_arg_wrapper_size_compat(void);
82084+
82085+int (* copy_gr_arg_wrapper)(const char *buf, struct gr_arg_wrapper *uwrap) __read_only;
82086+int (* copy_gr_arg)(const struct gr_arg *buf, struct gr_arg *arg) __read_only;
82087+int (* copy_acl_object_label)(struct acl_object_label *obj, const struct acl_object_label *userp) __read_only;
82088+int (* copy_acl_subject_label)(struct acl_subject_label *subj, const struct acl_subject_label *userp) __read_only;
82089+int (* copy_acl_role_label)(struct acl_role_label *role, const struct acl_role_label *userp) __read_only;
82090+int (* copy_acl_ip_label)(struct acl_ip_label *ip, const struct acl_ip_label *userp) __read_only;
82091+int (* copy_pointer_from_array)(void *ptr, unsigned long idx, const void *userp) __read_only;
82092+int (* copy_sprole_pw)(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp) __read_only;
82093+int (* copy_gr_hash_struct)(struct gr_hash_struct *hash, const struct gr_hash_struct *userp) __read_only;
82094+int (* copy_role_transition)(struct role_transition *trans, const struct role_transition *userp) __read_only;
82095+int (* copy_role_allowed_ip)(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp) __read_only;
82096+size_t (* get_gr_arg_wrapper_size)(void) __read_only;
82097+
82098+#else
82099+#define copy_gr_arg_wrapper copy_gr_arg_wrapper_normal
82100+#define copy_gr_arg copy_gr_arg_normal
82101+#define copy_gr_hash_struct copy_gr_hash_struct_normal
82102+#define copy_acl_object_label copy_acl_object_label_normal
82103+#define copy_acl_subject_label copy_acl_subject_label_normal
82104+#define copy_acl_role_label copy_acl_role_label_normal
82105+#define copy_acl_ip_label copy_acl_ip_label_normal
82106+#define copy_pointer_from_array copy_pointer_from_array_normal
82107+#define copy_sprole_pw copy_sprole_pw_normal
82108+#define copy_role_transition copy_role_transition_normal
82109+#define copy_role_allowed_ip copy_role_allowed_ip_normal
82110+#define get_gr_arg_wrapper_size get_gr_arg_wrapper_size_normal
82111+#endif
82112+
82113+static struct acl_subject_label *
82114+lookup_subject_map(const struct acl_subject_label *userp)
82115+{
82116+ unsigned int index = gr_shash(userp, polstate->subj_map_set.s_size);
82117+ struct subject_map *match;
82118+
82119+ match = polstate->subj_map_set.s_hash[index];
82120+
82121+ while (match && match->user != userp)
82122+ match = match->next;
82123+
82124+ if (match != NULL)
82125+ return match->kernel;
82126+ else
82127+ return NULL;
82128+}
82129+
82130+static void
82131+insert_subj_map_entry(struct subject_map *subjmap)
82132+{
82133+ unsigned int index = gr_shash(subjmap->user, polstate->subj_map_set.s_size);
82134+ struct subject_map **curr;
82135+
82136+ subjmap->prev = NULL;
82137+
82138+ curr = &polstate->subj_map_set.s_hash[index];
82139+ if (*curr != NULL)
82140+ (*curr)->prev = subjmap;
82141+
82142+ subjmap->next = *curr;
82143+ *curr = subjmap;
82144+
82145+ return;
82146+}
82147+
82148+static void
82149+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
82150+{
82151+ unsigned int index =
82152+ gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), polstate->acl_role_set.r_size);
82153+ struct acl_role_label **curr;
82154+ struct acl_role_label *tmp, *tmp2;
82155+
82156+ curr = &polstate->acl_role_set.r_hash[index];
82157+
82158+ /* simple case, slot is empty, just set it to our role */
82159+ if (*curr == NULL) {
82160+ *curr = role;
82161+ } else {
82162+ /* example:
82163+ 1 -> 2 -> 3 (adding 2 -> 3 to here)
82164+ 2 -> 3
82165+ */
82166+ /* first check to see if we can already be reached via this slot */
82167+ tmp = *curr;
82168+ while (tmp && tmp != role)
82169+ tmp = tmp->next;
82170+ if (tmp == role) {
82171+ /* we don't need to add ourselves to this slot's chain */
82172+ return;
82173+ }
82174+ /* we need to add ourselves to this chain, two cases */
82175+ if (role->next == NULL) {
82176+ /* simple case, append the current chain to our role */
82177+ role->next = *curr;
82178+ *curr = role;
82179+ } else {
82180+ /* 1 -> 2 -> 3 -> 4
82181+ 2 -> 3 -> 4
82182+ 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
82183+ */
82184+ /* trickier case: walk our role's chain until we find
82185+ the role for the start of the current slot's chain */
82186+ tmp = role;
82187+ tmp2 = *curr;
82188+ while (tmp->next && tmp->next != tmp2)
82189+ tmp = tmp->next;
82190+ if (tmp->next == tmp2) {
82191+ /* from example above, we found 3, so just
82192+ replace this slot's chain with ours */
82193+ *curr = role;
82194+ } else {
82195+ /* we didn't find a subset of our role's chain
82196+ in the current slot's chain, so append their
82197+ chain to ours, and set us as the first role in
82198+ the slot's chain
82199+
82200+ we could fold this case with the case above,
82201+ but making it explicit for clarity
82202+ */
82203+ tmp->next = tmp2;
82204+ *curr = role;
82205+ }
82206+ }
82207+ }
82208+
82209+ return;
82210+}
82211+
82212+static void
82213+insert_acl_role_label(struct acl_role_label *role)
82214+{
82215+ int i;
82216+
82217+ if (polstate->role_list == NULL) {
82218+ polstate->role_list = role;
82219+ role->prev = NULL;
82220+ } else {
82221+ role->prev = polstate->role_list;
82222+ polstate->role_list = role;
82223+ }
82224+
82225+ /* used for hash chains */
82226+ role->next = NULL;
82227+
82228+ if (role->roletype & GR_ROLE_DOMAIN) {
82229+ for (i = 0; i < role->domain_child_num; i++)
82230+ __insert_acl_role_label(role, role->domain_children[i]);
82231+ } else
82232+ __insert_acl_role_label(role, role->uidgid);
82233+}
82234+
82235+static int
82236+insert_name_entry(char *name, const u64 inode, const dev_t device, __u8 deleted)
82237+{
82238+ struct name_entry **curr, *nentry;
82239+ struct inodev_entry *ientry;
82240+ unsigned int len = strlen(name);
82241+ unsigned int key = full_name_hash(name, len);
82242+ unsigned int index = key % polstate->name_set.n_size;
82243+
82244+ curr = &polstate->name_set.n_hash[index];
82245+
82246+ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
82247+ curr = &((*curr)->next);
82248+
82249+ if (*curr != NULL)
82250+ return 1;
82251+
82252+ nentry = acl_alloc(sizeof (struct name_entry));
82253+ if (nentry == NULL)
82254+ return 0;
82255+ ientry = acl_alloc(sizeof (struct inodev_entry));
82256+ if (ientry == NULL)
82257+ return 0;
82258+ ientry->nentry = nentry;
82259+
82260+ nentry->key = key;
82261+ nentry->name = name;
82262+ nentry->inode = inode;
82263+ nentry->device = device;
82264+ nentry->len = len;
82265+ nentry->deleted = deleted;
82266+
82267+ nentry->prev = NULL;
82268+ curr = &polstate->name_set.n_hash[index];
82269+ if (*curr != NULL)
82270+ (*curr)->prev = nentry;
82271+ nentry->next = *curr;
82272+ *curr = nentry;
82273+
82274+ /* insert us into the table searchable by inode/dev */
82275+ __insert_inodev_entry(polstate, ientry);
82276+
82277+ return 1;
82278+}
82279+
82280+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
82281+
82282+static void *
82283+create_table(__u32 * len, int elementsize)
82284+{
82285+ unsigned int table_sizes[] = {
82286+ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
82287+ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
82288+ 4194301, 8388593, 16777213, 33554393, 67108859
82289+ };
82290+ void *newtable = NULL;
82291+ unsigned int pwr = 0;
82292+
82293+ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
82294+ table_sizes[pwr] <= *len)
82295+ pwr++;
82296+
82297+ if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
82298+ return newtable;
82299+
82300+ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
82301+ newtable =
82302+ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
82303+ else
82304+ newtable = vmalloc(table_sizes[pwr] * elementsize);
82305+
82306+ *len = table_sizes[pwr];
82307+
82308+ return newtable;
82309+}
82310+
82311+static int
82312+init_variables(const struct gr_arg *arg, bool reload)
82313+{
82314+ struct task_struct *reaper = init_pid_ns.child_reaper;
82315+ unsigned int stacksize;
82316+
82317+ polstate->subj_map_set.s_size = arg->role_db.num_subjects;
82318+ polstate->acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
82319+ polstate->name_set.n_size = arg->role_db.num_objects;
82320+ polstate->inodev_set.i_size = arg->role_db.num_objects;
82321+
82322+ if (!polstate->subj_map_set.s_size || !polstate->acl_role_set.r_size ||
82323+ !polstate->name_set.n_size || !polstate->inodev_set.i_size)
82324+ return 1;
82325+
82326+ if (!reload) {
82327+ if (!gr_init_uidset())
82328+ return 1;
82329+ }
82330+
82331+ /* set up the stack that holds allocation info */
82332+
82333+ stacksize = arg->role_db.num_pointers + 5;
82334+
82335+ if (!acl_alloc_stack_init(stacksize))
82336+ return 1;
82337+
82338+ if (!reload) {
82339+ /* grab reference for the real root dentry and vfsmount */
82340+ get_fs_root(reaper->fs, &gr_real_root);
82341+
82342+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
82343+ 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);
82344+#endif
82345+
82346+ fakefs_obj_rw = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
82347+ if (fakefs_obj_rw == NULL)
82348+ return 1;
82349+ fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
82350+
82351+ fakefs_obj_rwx = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
82352+ if (fakefs_obj_rwx == NULL)
82353+ return 1;
82354+ fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
82355+ }
82356+
82357+ polstate->subj_map_set.s_hash =
82358+ (struct subject_map **) create_table(&polstate->subj_map_set.s_size, sizeof(void *));
82359+ polstate->acl_role_set.r_hash =
82360+ (struct acl_role_label **) create_table(&polstate->acl_role_set.r_size, sizeof(void *));
82361+ polstate->name_set.n_hash = (struct name_entry **) create_table(&polstate->name_set.n_size, sizeof(void *));
82362+ polstate->inodev_set.i_hash =
82363+ (struct inodev_entry **) create_table(&polstate->inodev_set.i_size, sizeof(void *));
82364+
82365+ if (!polstate->subj_map_set.s_hash || !polstate->acl_role_set.r_hash ||
82366+ !polstate->name_set.n_hash || !polstate->inodev_set.i_hash)
82367+ return 1;
82368+
82369+ memset(polstate->subj_map_set.s_hash, 0,
82370+ sizeof(struct subject_map *) * polstate->subj_map_set.s_size);
82371+ memset(polstate->acl_role_set.r_hash, 0,
82372+ sizeof (struct acl_role_label *) * polstate->acl_role_set.r_size);
82373+ memset(polstate->name_set.n_hash, 0,
82374+ sizeof (struct name_entry *) * polstate->name_set.n_size);
82375+ memset(polstate->inodev_set.i_hash, 0,
82376+ sizeof (struct inodev_entry *) * polstate->inodev_set.i_size);
82377+
82378+ return 0;
82379+}
82380+
82381+/* free information not needed after startup
82382+ currently contains user->kernel pointer mappings for subjects
82383+*/
82384+
82385+static void
82386+free_init_variables(void)
82387+{
82388+ __u32 i;
82389+
82390+ if (polstate->subj_map_set.s_hash) {
82391+ for (i = 0; i < polstate->subj_map_set.s_size; i++) {
82392+ if (polstate->subj_map_set.s_hash[i]) {
82393+ kfree(polstate->subj_map_set.s_hash[i]);
82394+ polstate->subj_map_set.s_hash[i] = NULL;
82395+ }
82396+ }
82397+
82398+ if ((polstate->subj_map_set.s_size * sizeof (struct subject_map *)) <=
82399+ PAGE_SIZE)
82400+ kfree(polstate->subj_map_set.s_hash);
82401+ else
82402+ vfree(polstate->subj_map_set.s_hash);
82403+ }
82404+
82405+ return;
82406+}
82407+
82408+static void
82409+free_variables(bool reload)
82410+{
82411+ struct acl_subject_label *s;
82412+ struct acl_role_label *r;
82413+ struct task_struct *task, *task2;
82414+ unsigned int x;
82415+
82416+ if (!reload) {
82417+ gr_clear_learn_entries();
82418+
82419+ read_lock(&tasklist_lock);
82420+ do_each_thread(task2, task) {
82421+ task->acl_sp_role = 0;
82422+ task->acl_role_id = 0;
82423+ task->inherited = 0;
82424+ task->acl = NULL;
82425+ task->role = NULL;
82426+ } while_each_thread(task2, task);
82427+ read_unlock(&tasklist_lock);
82428+
82429+ kfree(fakefs_obj_rw);
82430+ fakefs_obj_rw = NULL;
82431+ kfree(fakefs_obj_rwx);
82432+ fakefs_obj_rwx = NULL;
82433+
82434+ /* release the reference to the real root dentry and vfsmount */
82435+ path_put(&gr_real_root);
82436+ memset(&gr_real_root, 0, sizeof(gr_real_root));
82437+ }
82438+
82439+ /* free all object hash tables */
82440+
82441+ FOR_EACH_ROLE_START(r)
82442+ if (r->subj_hash == NULL)
82443+ goto next_role;
82444+ FOR_EACH_SUBJECT_START(r, s, x)
82445+ if (s->obj_hash == NULL)
82446+ break;
82447+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
82448+ kfree(s->obj_hash);
82449+ else
82450+ vfree(s->obj_hash);
82451+ FOR_EACH_SUBJECT_END(s, x)
82452+ FOR_EACH_NESTED_SUBJECT_START(r, s)
82453+ if (s->obj_hash == NULL)
82454+ break;
82455+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
82456+ kfree(s->obj_hash);
82457+ else
82458+ vfree(s->obj_hash);
82459+ FOR_EACH_NESTED_SUBJECT_END(s)
82460+ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
82461+ kfree(r->subj_hash);
82462+ else
82463+ vfree(r->subj_hash);
82464+ r->subj_hash = NULL;
82465+next_role:
82466+ FOR_EACH_ROLE_END(r)
82467+
82468+ acl_free_all();
82469+
82470+ if (polstate->acl_role_set.r_hash) {
82471+ if ((polstate->acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
82472+ PAGE_SIZE)
82473+ kfree(polstate->acl_role_set.r_hash);
82474+ else
82475+ vfree(polstate->acl_role_set.r_hash);
82476+ }
82477+ if (polstate->name_set.n_hash) {
82478+ if ((polstate->name_set.n_size * sizeof (struct name_entry *)) <=
82479+ PAGE_SIZE)
82480+ kfree(polstate->name_set.n_hash);
82481+ else
82482+ vfree(polstate->name_set.n_hash);
82483+ }
82484+
82485+ if (polstate->inodev_set.i_hash) {
82486+ if ((polstate->inodev_set.i_size * sizeof (struct inodev_entry *)) <=
82487+ PAGE_SIZE)
82488+ kfree(polstate->inodev_set.i_hash);
82489+ else
82490+ vfree(polstate->inodev_set.i_hash);
82491+ }
82492+
82493+ if (!reload)
82494+ gr_free_uidset();
82495+
82496+ memset(&polstate->name_set, 0, sizeof (struct name_db));
82497+ memset(&polstate->inodev_set, 0, sizeof (struct inodev_db));
82498+ memset(&polstate->acl_role_set, 0, sizeof (struct acl_role_db));
82499+ memset(&polstate->subj_map_set, 0, sizeof (struct acl_subj_map_db));
82500+
82501+ polstate->default_role = NULL;
82502+ polstate->kernel_role = NULL;
82503+ polstate->role_list = NULL;
82504+
82505+ return;
82506+}
82507+
82508+static struct acl_subject_label *
82509+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
82510+
82511+static int alloc_and_copy_string(char **name, unsigned int maxlen)
82512+{
82513+ unsigned int len = strnlen_user(*name, maxlen);
82514+ char *tmp;
82515+
82516+ if (!len || len >= maxlen)
82517+ return -EINVAL;
82518+
82519+ if ((tmp = (char *) acl_alloc(len)) == NULL)
82520+ return -ENOMEM;
82521+
82522+ if (copy_from_user(tmp, *name, len))
82523+ return -EFAULT;
82524+
82525+ tmp[len-1] = '\0';
82526+ *name = tmp;
82527+
82528+ return 0;
82529+}
82530+
82531+static int
82532+copy_user_glob(struct acl_object_label *obj)
82533+{
82534+ struct acl_object_label *g_tmp, **guser;
82535+ int error;
82536+
82537+ if (obj->globbed == NULL)
82538+ return 0;
82539+
82540+ guser = &obj->globbed;
82541+ while (*guser) {
82542+ g_tmp = (struct acl_object_label *)
82543+ acl_alloc(sizeof (struct acl_object_label));
82544+ if (g_tmp == NULL)
82545+ return -ENOMEM;
82546+
82547+ if (copy_acl_object_label(g_tmp, *guser))
82548+ return -EFAULT;
82549+
82550+ error = alloc_and_copy_string(&g_tmp->filename, PATH_MAX);
82551+ if (error)
82552+ return error;
82553+
82554+ *guser = g_tmp;
82555+ guser = &(g_tmp->next);
82556+ }
82557+
82558+ return 0;
82559+}
82560+
82561+static int
82562+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
82563+ struct acl_role_label *role)
82564+{
82565+ struct acl_object_label *o_tmp;
82566+ int ret;
82567+
82568+ while (userp) {
82569+ if ((o_tmp = (struct acl_object_label *)
82570+ acl_alloc(sizeof (struct acl_object_label))) == NULL)
82571+ return -ENOMEM;
82572+
82573+ if (copy_acl_object_label(o_tmp, userp))
82574+ return -EFAULT;
82575+
82576+ userp = o_tmp->prev;
82577+
82578+ ret = alloc_and_copy_string(&o_tmp->filename, PATH_MAX);
82579+ if (ret)
82580+ return ret;
82581+
82582+ insert_acl_obj_label(o_tmp, subj);
82583+ if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
82584+ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
82585+ return -ENOMEM;
82586+
82587+ ret = copy_user_glob(o_tmp);
82588+ if (ret)
82589+ return ret;
82590+
82591+ if (o_tmp->nested) {
82592+ int already_copied;
82593+
82594+ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
82595+ if (IS_ERR(o_tmp->nested))
82596+ return PTR_ERR(o_tmp->nested);
82597+
82598+ /* insert into nested subject list if we haven't copied this one yet
82599+ to prevent duplicate entries */
82600+ if (!already_copied) {
82601+ o_tmp->nested->next = role->hash->first;
82602+ role->hash->first = o_tmp->nested;
82603+ }
82604+ }
82605+ }
82606+
82607+ return 0;
82608+}
82609+
82610+static __u32
82611+count_user_subjs(struct acl_subject_label *userp)
82612+{
82613+ struct acl_subject_label s_tmp;
82614+ __u32 num = 0;
82615+
82616+ while (userp) {
82617+ if (copy_acl_subject_label(&s_tmp, userp))
82618+ break;
82619+
82620+ userp = s_tmp.prev;
82621+ }
82622+
82623+ return num;
82624+}
82625+
82626+static int
82627+copy_user_allowedips(struct acl_role_label *rolep)
82628+{
82629+ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
82630+
82631+ ruserip = rolep->allowed_ips;
82632+
82633+ while (ruserip) {
82634+ rlast = rtmp;
82635+
82636+ if ((rtmp = (struct role_allowed_ip *)
82637+ acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
82638+ return -ENOMEM;
82639+
82640+ if (copy_role_allowed_ip(rtmp, ruserip))
82641+ return -EFAULT;
82642+
82643+ ruserip = rtmp->prev;
82644+
82645+ if (!rlast) {
82646+ rtmp->prev = NULL;
82647+ rolep->allowed_ips = rtmp;
82648+ } else {
82649+ rlast->next = rtmp;
82650+ rtmp->prev = rlast;
82651+ }
82652+
82653+ if (!ruserip)
82654+ rtmp->next = NULL;
82655+ }
82656+
82657+ return 0;
82658+}
82659+
82660+static int
82661+copy_user_transitions(struct acl_role_label *rolep)
82662+{
82663+ struct role_transition *rusertp, *rtmp = NULL, *rlast;
82664+ int error;
82665+
82666+ rusertp = rolep->transitions;
82667+
82668+ while (rusertp) {
82669+ rlast = rtmp;
82670+
82671+ if ((rtmp = (struct role_transition *)
82672+ acl_alloc(sizeof (struct role_transition))) == NULL)
82673+ return -ENOMEM;
82674+
82675+ if (copy_role_transition(rtmp, rusertp))
82676+ return -EFAULT;
82677+
82678+ rusertp = rtmp->prev;
82679+
82680+ error = alloc_and_copy_string(&rtmp->rolename, GR_SPROLE_LEN);
82681+ if (error)
82682+ return error;
82683+
82684+ if (!rlast) {
82685+ rtmp->prev = NULL;
82686+ rolep->transitions = rtmp;
82687+ } else {
82688+ rlast->next = rtmp;
82689+ rtmp->prev = rlast;
82690+ }
82691+
82692+ if (!rusertp)
82693+ rtmp->next = NULL;
82694+ }
82695+
82696+ return 0;
82697+}
82698+
82699+static __u32 count_user_objs(const struct acl_object_label __user *userp)
82700+{
82701+ struct acl_object_label o_tmp;
82702+ __u32 num = 0;
82703+
82704+ while (userp) {
82705+ if (copy_acl_object_label(&o_tmp, userp))
82706+ break;
82707+
82708+ userp = o_tmp.prev;
82709+ num++;
82710+ }
82711+
82712+ return num;
82713+}
82714+
82715+static struct acl_subject_label *
82716+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
82717+{
82718+ struct acl_subject_label *s_tmp = NULL, *s_tmp2;
82719+ __u32 num_objs;
82720+ struct acl_ip_label **i_tmp, *i_utmp2;
82721+ struct gr_hash_struct ghash;
82722+ struct subject_map *subjmap;
82723+ unsigned int i_num;
82724+ int err;
82725+
82726+ if (already_copied != NULL)
82727+ *already_copied = 0;
82728+
82729+ s_tmp = lookup_subject_map(userp);
82730+
82731+ /* we've already copied this subject into the kernel, just return
82732+ the reference to it, and don't copy it over again
82733+ */
82734+ if (s_tmp) {
82735+ if (already_copied != NULL)
82736+ *already_copied = 1;
82737+ return(s_tmp);
82738+ }
82739+
82740+ if ((s_tmp = (struct acl_subject_label *)
82741+ acl_alloc(sizeof (struct acl_subject_label))) == NULL)
82742+ return ERR_PTR(-ENOMEM);
82743+
82744+ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
82745+ if (subjmap == NULL)
82746+ return ERR_PTR(-ENOMEM);
82747+
82748+ subjmap->user = userp;
82749+ subjmap->kernel = s_tmp;
82750+ insert_subj_map_entry(subjmap);
82751+
82752+ if (copy_acl_subject_label(s_tmp, userp))
82753+ return ERR_PTR(-EFAULT);
82754+
82755+ err = alloc_and_copy_string(&s_tmp->filename, PATH_MAX);
82756+ if (err)
82757+ return ERR_PTR(err);
82758+
82759+ if (!strcmp(s_tmp->filename, "/"))
82760+ role->root_label = s_tmp;
82761+
82762+ if (copy_gr_hash_struct(&ghash, s_tmp->hash))
82763+ return ERR_PTR(-EFAULT);
82764+
82765+ /* copy user and group transition tables */
82766+
82767+ if (s_tmp->user_trans_num) {
82768+ uid_t *uidlist;
82769+
82770+ uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
82771+ if (uidlist == NULL)
82772+ return ERR_PTR(-ENOMEM);
82773+ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
82774+ return ERR_PTR(-EFAULT);
82775+
82776+ s_tmp->user_transitions = uidlist;
82777+ }
82778+
82779+ if (s_tmp->group_trans_num) {
82780+ gid_t *gidlist;
82781+
82782+ gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
82783+ if (gidlist == NULL)
82784+ return ERR_PTR(-ENOMEM);
82785+ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
82786+ return ERR_PTR(-EFAULT);
82787+
82788+ s_tmp->group_transitions = gidlist;
82789+ }
82790+
82791+ /* set up object hash table */
82792+ num_objs = count_user_objs(ghash.first);
82793+
82794+ s_tmp->obj_hash_size = num_objs;
82795+ s_tmp->obj_hash =
82796+ (struct acl_object_label **)
82797+ create_table(&(s_tmp->obj_hash_size), sizeof(void *));
82798+
82799+ if (!s_tmp->obj_hash)
82800+ return ERR_PTR(-ENOMEM);
82801+
82802+ memset(s_tmp->obj_hash, 0,
82803+ s_tmp->obj_hash_size *
82804+ sizeof (struct acl_object_label *));
82805+
82806+ /* add in objects */
82807+ err = copy_user_objs(ghash.first, s_tmp, role);
82808+
82809+ if (err)
82810+ return ERR_PTR(err);
82811+
82812+ /* set pointer for parent subject */
82813+ if (s_tmp->parent_subject) {
82814+ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
82815+
82816+ if (IS_ERR(s_tmp2))
82817+ return s_tmp2;
82818+
82819+ s_tmp->parent_subject = s_tmp2;
82820+ }
82821+
82822+ /* add in ip acls */
82823+
82824+ if (!s_tmp->ip_num) {
82825+ s_tmp->ips = NULL;
82826+ goto insert;
82827+ }
82828+
82829+ i_tmp =
82830+ (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
82831+ sizeof (struct acl_ip_label *));
82832+
82833+ if (!i_tmp)
82834+ return ERR_PTR(-ENOMEM);
82835+
82836+ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
82837+ *(i_tmp + i_num) =
82838+ (struct acl_ip_label *)
82839+ acl_alloc(sizeof (struct acl_ip_label));
82840+ if (!*(i_tmp + i_num))
82841+ return ERR_PTR(-ENOMEM);
82842+
82843+ if (copy_pointer_from_array(&i_utmp2, i_num, s_tmp->ips))
82844+ return ERR_PTR(-EFAULT);
82845+
82846+ if (copy_acl_ip_label(*(i_tmp + i_num), i_utmp2))
82847+ return ERR_PTR(-EFAULT);
82848+
82849+ if ((*(i_tmp + i_num))->iface == NULL)
82850+ continue;
82851+
82852+ err = alloc_and_copy_string(&(*(i_tmp + i_num))->iface, IFNAMSIZ);
82853+ if (err)
82854+ return ERR_PTR(err);
82855+ }
82856+
82857+ s_tmp->ips = i_tmp;
82858+
82859+insert:
82860+ if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
82861+ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
82862+ return ERR_PTR(-ENOMEM);
82863+
82864+ return s_tmp;
82865+}
82866+
82867+static int
82868+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
82869+{
82870+ struct acl_subject_label s_pre;
82871+ struct acl_subject_label * ret;
82872+ int err;
82873+
82874+ while (userp) {
82875+ if (copy_acl_subject_label(&s_pre, userp))
82876+ return -EFAULT;
82877+
82878+ ret = do_copy_user_subj(userp, role, NULL);
82879+
82880+ err = PTR_ERR(ret);
82881+ if (IS_ERR(ret))
82882+ return err;
82883+
82884+ insert_acl_subj_label(ret, role);
82885+
82886+ userp = s_pre.prev;
82887+ }
82888+
82889+ return 0;
82890+}
82891+
82892+static int
82893+copy_user_acl(struct gr_arg *arg)
82894+{
82895+ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
82896+ struct acl_subject_label *subj_list;
82897+ struct sprole_pw *sptmp;
82898+ struct gr_hash_struct *ghash;
82899+ uid_t *domainlist;
82900+ unsigned int r_num;
82901+ int err = 0;
82902+ __u16 i;
82903+ __u32 num_subjs;
82904+
82905+ /* we need a default and kernel role */
82906+ if (arg->role_db.num_roles < 2)
82907+ return -EINVAL;
82908+
82909+ /* copy special role authentication info from userspace */
82910+
82911+ polstate->num_sprole_pws = arg->num_sprole_pws;
82912+ polstate->acl_special_roles = (struct sprole_pw **) acl_alloc_num(polstate->num_sprole_pws, sizeof(struct sprole_pw *));
82913+
82914+ if (!polstate->acl_special_roles && polstate->num_sprole_pws)
82915+ return -ENOMEM;
82916+
82917+ for (i = 0; i < polstate->num_sprole_pws; i++) {
82918+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
82919+ if (!sptmp)
82920+ return -ENOMEM;
82921+ if (copy_sprole_pw(sptmp, i, arg->sprole_pws))
82922+ return -EFAULT;
82923+
82924+ err = alloc_and_copy_string((char **)&sptmp->rolename, GR_SPROLE_LEN);
82925+ if (err)
82926+ return err;
82927+
82928+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
82929+ printk(KERN_ALERT "Copying special role %s\n", sptmp->rolename);
82930+#endif
82931+
82932+ polstate->acl_special_roles[i] = sptmp;
82933+ }
82934+
82935+ r_utmp = (struct acl_role_label **) arg->role_db.r_table;
82936+
82937+ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
82938+ r_tmp = acl_alloc(sizeof (struct acl_role_label));
82939+
82940+ if (!r_tmp)
82941+ return -ENOMEM;
82942+
82943+ if (copy_pointer_from_array(&r_utmp2, r_num, r_utmp))
82944+ return -EFAULT;
82945+
82946+ if (copy_acl_role_label(r_tmp, r_utmp2))
82947+ return -EFAULT;
82948+
82949+ err = alloc_and_copy_string(&r_tmp->rolename, GR_SPROLE_LEN);
82950+ if (err)
82951+ return err;
82952+
82953+ if (!strcmp(r_tmp->rolename, "default")
82954+ && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
82955+ polstate->default_role = r_tmp;
82956+ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
82957+ polstate->kernel_role = r_tmp;
82958+ }
82959+
82960+ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
82961+ return -ENOMEM;
82962+
82963+ if (copy_gr_hash_struct(ghash, r_tmp->hash))
82964+ return -EFAULT;
82965+
82966+ r_tmp->hash = ghash;
82967+
82968+ num_subjs = count_user_subjs(r_tmp->hash->first);
82969+
82970+ r_tmp->subj_hash_size = num_subjs;
82971+ r_tmp->subj_hash =
82972+ (struct acl_subject_label **)
82973+ create_table(&(r_tmp->subj_hash_size), sizeof(void *));
82974+
82975+ if (!r_tmp->subj_hash)
82976+ return -ENOMEM;
82977+
82978+ err = copy_user_allowedips(r_tmp);
82979+ if (err)
82980+ return err;
82981+
82982+ /* copy domain info */
82983+ if (r_tmp->domain_children != NULL) {
82984+ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
82985+ if (domainlist == NULL)
82986+ return -ENOMEM;
82987+
82988+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
82989+ return -EFAULT;
82990+
82991+ r_tmp->domain_children = domainlist;
82992+ }
82993+
82994+ err = copy_user_transitions(r_tmp);
82995+ if (err)
82996+ return err;
82997+
82998+ memset(r_tmp->subj_hash, 0,
82999+ r_tmp->subj_hash_size *
83000+ sizeof (struct acl_subject_label *));
83001+
83002+ /* acquire the list of subjects, then NULL out
83003+ the list prior to parsing the subjects for this role,
83004+ as during this parsing the list is replaced with a list
83005+ of *nested* subjects for the role
83006+ */
83007+ subj_list = r_tmp->hash->first;
83008+
83009+ /* set nested subject list to null */
83010+ r_tmp->hash->first = NULL;
83011+
83012+ err = copy_user_subjs(subj_list, r_tmp);
83013+
83014+ if (err)
83015+ return err;
83016+
83017+ insert_acl_role_label(r_tmp);
83018+ }
83019+
83020+ if (polstate->default_role == NULL || polstate->kernel_role == NULL)
83021+ return -EINVAL;
83022+
83023+ return err;
83024+}
83025+
83026+static int gracl_reload_apply_policies(void *reload)
83027+{
83028+ struct gr_reload_state *reload_state = (struct gr_reload_state *)reload;
83029+ struct task_struct *task, *task2;
83030+ struct acl_role_label *role, *rtmp;
83031+ struct acl_subject_label *subj;
83032+ const struct cred *cred;
83033+ int role_applied;
83034+ int ret = 0;
83035+
83036+ memcpy(&reload_state->oldpolicy, reload_state->oldpolicy_ptr, sizeof(struct gr_policy_state));
83037+ memcpy(&reload_state->oldalloc, reload_state->oldalloc_ptr, sizeof(struct gr_alloc_state));
83038+
83039+ /* first make sure we'll be able to apply the new policy cleanly */
83040+ do_each_thread(task2, task) {
83041+ if (task->exec_file == NULL)
83042+ continue;
83043+ role_applied = 0;
83044+ if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
83045+ /* preserve special roles */
83046+ FOR_EACH_ROLE_START(role)
83047+ if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
83048+ rtmp = task->role;
83049+ task->role = role;
83050+ role_applied = 1;
83051+ break;
83052+ }
83053+ FOR_EACH_ROLE_END(role)
83054+ }
83055+ if (!role_applied) {
83056+ cred = __task_cred(task);
83057+ rtmp = task->role;
83058+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83059+ }
83060+ /* this handles non-nested inherited subjects, nested subjects will still
83061+ be dropped currently */
83062+ subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
83063+ task->tmpacl = __gr_get_subject_for_task(polstate, task, NULL, 1);
83064+ /* change the role back so that we've made no modifications to the policy */
83065+ task->role = rtmp;
83066+
83067+ if (subj == NULL || task->tmpacl == NULL) {
83068+ ret = -EINVAL;
83069+ goto out;
83070+ }
83071+ } while_each_thread(task2, task);
83072+
83073+ /* now actually apply the policy */
83074+
83075+ do_each_thread(task2, task) {
83076+ if (task->exec_file) {
83077+ role_applied = 0;
83078+ if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
83079+ /* preserve special roles */
83080+ FOR_EACH_ROLE_START(role)
83081+ if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
83082+ task->role = role;
83083+ role_applied = 1;
83084+ break;
83085+ }
83086+ FOR_EACH_ROLE_END(role)
83087+ }
83088+ if (!role_applied) {
83089+ cred = __task_cred(task);
83090+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83091+ }
83092+ /* this handles non-nested inherited subjects, nested subjects will still
83093+ be dropped currently */
83094+ if (!reload_state->oldmode && task->inherited)
83095+ subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
83096+ else {
83097+ /* looked up and tagged to the task previously */
83098+ subj = task->tmpacl;
83099+ }
83100+ /* subj will be non-null */
83101+ __gr_apply_subject_to_task(polstate, task, subj);
83102+ if (reload_state->oldmode) {
83103+ task->acl_role_id = 0;
83104+ task->acl_sp_role = 0;
83105+ task->inherited = 0;
83106+ }
83107+ } else {
83108+ // it's a kernel process
83109+ task->role = polstate->kernel_role;
83110+ task->acl = polstate->kernel_role->root_label;
83111+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
83112+ task->acl->mode &= ~GR_PROCFIND;
83113+#endif
83114+ }
83115+ } while_each_thread(task2, task);
83116+
83117+ memcpy(reload_state->oldpolicy_ptr, &reload_state->newpolicy, sizeof(struct gr_policy_state));
83118+ memcpy(reload_state->oldalloc_ptr, &reload_state->newalloc, sizeof(struct gr_alloc_state));
83119+
83120+out:
83121+
83122+ return ret;
83123+}
83124+
83125+static int gracl_reload(struct gr_arg *args, unsigned char oldmode)
83126+{
83127+ struct gr_reload_state new_reload_state = { };
83128+ int err;
83129+
83130+ new_reload_state.oldpolicy_ptr = polstate;
83131+ new_reload_state.oldalloc_ptr = current_alloc_state;
83132+ new_reload_state.oldmode = oldmode;
83133+
83134+ current_alloc_state = &new_reload_state.newalloc;
83135+ polstate = &new_reload_state.newpolicy;
83136+
83137+ /* everything relevant is now saved off, copy in the new policy */
83138+ if (init_variables(args, true)) {
83139+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
83140+ err = -ENOMEM;
83141+ goto error;
83142+ }
83143+
83144+ err = copy_user_acl(args);
83145+ free_init_variables();
83146+ if (err)
83147+ goto error;
83148+ /* the new policy is copied in, with the old policy available via saved_state
83149+ first go through applying roles, making sure to preserve special roles
83150+ then apply new subjects, making sure to preserve inherited and nested subjects,
83151+ though currently only inherited subjects will be preserved
83152+ */
83153+ err = stop_machine(gracl_reload_apply_policies, &new_reload_state, NULL);
83154+ if (err)
83155+ goto error;
83156+
83157+ /* we've now applied the new policy, so restore the old policy state to free it */
83158+ polstate = &new_reload_state.oldpolicy;
83159+ current_alloc_state = &new_reload_state.oldalloc;
83160+ free_variables(true);
83161+
83162+ /* oldpolicy/oldalloc_ptr point to the new policy/alloc states as they were copied
83163+ to running_polstate/current_alloc_state inside stop_machine
83164+ */
83165+ err = 0;
83166+ goto out;
83167+error:
83168+ /* on error of loading the new policy, we'll just keep the previous
83169+ policy set around
83170+ */
83171+ free_variables(true);
83172+
83173+ /* doesn't affect runtime, but maintains consistent state */
83174+out:
83175+ polstate = new_reload_state.oldpolicy_ptr;
83176+ current_alloc_state = new_reload_state.oldalloc_ptr;
83177+
83178+ return err;
83179+}
83180+
83181+static int
83182+gracl_init(struct gr_arg *args)
83183+{
83184+ int error = 0;
83185+
83186+ memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
83187+ memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
83188+
83189+ if (init_variables(args, false)) {
83190+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
83191+ error = -ENOMEM;
83192+ goto out;
83193+ }
83194+
83195+ error = copy_user_acl(args);
83196+ free_init_variables();
83197+ if (error)
83198+ goto out;
83199+
83200+ error = gr_set_acls(0);
83201+ if (error)
83202+ goto out;
83203+
83204+ gr_enable_rbac_system();
83205+
83206+ return 0;
83207+
83208+out:
83209+ free_variables(false);
83210+ return error;
83211+}
83212+
83213+static int
83214+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
83215+ unsigned char **sum)
83216+{
83217+ struct acl_role_label *r;
83218+ struct role_allowed_ip *ipp;
83219+ struct role_transition *trans;
83220+ unsigned int i;
83221+ int found = 0;
83222+ u32 curr_ip = current->signal->curr_ip;
83223+
83224+ current->signal->saved_ip = curr_ip;
83225+
83226+ /* check transition table */
83227+
83228+ for (trans = current->role->transitions; trans; trans = trans->next) {
83229+ if (!strcmp(rolename, trans->rolename)) {
83230+ found = 1;
83231+ break;
83232+ }
83233+ }
83234+
83235+ if (!found)
83236+ return 0;
83237+
83238+ /* handle special roles that do not require authentication
83239+ and check ip */
83240+
83241+ FOR_EACH_ROLE_START(r)
83242+ if (!strcmp(rolename, r->rolename) &&
83243+ (r->roletype & GR_ROLE_SPECIAL)) {
83244+ found = 0;
83245+ if (r->allowed_ips != NULL) {
83246+ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
83247+ if ((ntohl(curr_ip) & ipp->netmask) ==
83248+ (ntohl(ipp->addr) & ipp->netmask))
83249+ found = 1;
83250+ }
83251+ } else
83252+ found = 2;
83253+ if (!found)
83254+ return 0;
83255+
83256+ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
83257+ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
83258+ *salt = NULL;
83259+ *sum = NULL;
83260+ return 1;
83261+ }
83262+ }
83263+ FOR_EACH_ROLE_END(r)
83264+
83265+ for (i = 0; i < polstate->num_sprole_pws; i++) {
83266+ if (!strcmp(rolename, polstate->acl_special_roles[i]->rolename)) {
83267+ *salt = polstate->acl_special_roles[i]->salt;
83268+ *sum = polstate->acl_special_roles[i]->sum;
83269+ return 1;
83270+ }
83271+ }
83272+
83273+ return 0;
83274+}
83275+
83276+int gr_check_secure_terminal(struct task_struct *task)
83277+{
83278+ struct task_struct *p, *p2, *p3;
83279+ struct files_struct *files;
83280+ struct fdtable *fdt;
83281+ struct file *our_file = NULL, *file;
83282+ int i;
83283+
83284+ if (task->signal->tty == NULL)
83285+ return 1;
83286+
83287+ files = get_files_struct(task);
83288+ if (files != NULL) {
83289+ rcu_read_lock();
83290+ fdt = files_fdtable(files);
83291+ for (i=0; i < fdt->max_fds; i++) {
83292+ file = fcheck_files(files, i);
83293+ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
83294+ get_file(file);
83295+ our_file = file;
83296+ }
83297+ }
83298+ rcu_read_unlock();
83299+ put_files_struct(files);
83300+ }
83301+
83302+ if (our_file == NULL)
83303+ return 1;
83304+
83305+ read_lock(&tasklist_lock);
83306+ do_each_thread(p2, p) {
83307+ files = get_files_struct(p);
83308+ if (files == NULL ||
83309+ (p->signal && p->signal->tty == task->signal->tty)) {
83310+ if (files != NULL)
83311+ put_files_struct(files);
83312+ continue;
83313+ }
83314+ rcu_read_lock();
83315+ fdt = files_fdtable(files);
83316+ for (i=0; i < fdt->max_fds; i++) {
83317+ file = fcheck_files(files, i);
83318+ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
83319+ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
83320+ p3 = task;
83321+ while (task_pid_nr(p3) > 0) {
83322+ if (p3 == p)
83323+ break;
83324+ p3 = p3->real_parent;
83325+ }
83326+ if (p3 == p)
83327+ break;
83328+ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
83329+ gr_handle_alertkill(p);
83330+ rcu_read_unlock();
83331+ put_files_struct(files);
83332+ read_unlock(&tasklist_lock);
83333+ fput(our_file);
83334+ return 0;
83335+ }
83336+ }
83337+ rcu_read_unlock();
83338+ put_files_struct(files);
83339+ } while_each_thread(p2, p);
83340+ read_unlock(&tasklist_lock);
83341+
83342+ fput(our_file);
83343+ return 1;
83344+}
83345+
83346+ssize_t
83347+write_grsec_handler(struct file *file, const char __user * buf, size_t count, loff_t *ppos)
83348+{
83349+ struct gr_arg_wrapper uwrap;
83350+ unsigned char *sprole_salt = NULL;
83351+ unsigned char *sprole_sum = NULL;
83352+ int error = 0;
83353+ int error2 = 0;
83354+ size_t req_count = 0;
83355+ unsigned char oldmode = 0;
83356+
83357+ mutex_lock(&gr_dev_mutex);
83358+
83359+ if (gr_acl_is_enabled() && !(current->acl->mode & GR_KERNELAUTH)) {
83360+ error = -EPERM;
83361+ goto out;
83362+ }
83363+
83364+#ifdef CONFIG_COMPAT
83365+ pax_open_kernel();
83366+ if (is_compat_task()) {
83367+ copy_gr_arg_wrapper = &copy_gr_arg_wrapper_compat;
83368+ copy_gr_arg = &copy_gr_arg_compat;
83369+ copy_acl_object_label = &copy_acl_object_label_compat;
83370+ copy_acl_subject_label = &copy_acl_subject_label_compat;
83371+ copy_acl_role_label = &copy_acl_role_label_compat;
83372+ copy_acl_ip_label = &copy_acl_ip_label_compat;
83373+ copy_role_allowed_ip = &copy_role_allowed_ip_compat;
83374+ copy_role_transition = &copy_role_transition_compat;
83375+ copy_sprole_pw = &copy_sprole_pw_compat;
83376+ copy_gr_hash_struct = &copy_gr_hash_struct_compat;
83377+ copy_pointer_from_array = &copy_pointer_from_array_compat;
83378+ get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_compat;
83379+ } else {
83380+ copy_gr_arg_wrapper = &copy_gr_arg_wrapper_normal;
83381+ copy_gr_arg = &copy_gr_arg_normal;
83382+ copy_acl_object_label = &copy_acl_object_label_normal;
83383+ copy_acl_subject_label = &copy_acl_subject_label_normal;
83384+ copy_acl_role_label = &copy_acl_role_label_normal;
83385+ copy_acl_ip_label = &copy_acl_ip_label_normal;
83386+ copy_role_allowed_ip = &copy_role_allowed_ip_normal;
83387+ copy_role_transition = &copy_role_transition_normal;
83388+ copy_sprole_pw = &copy_sprole_pw_normal;
83389+ copy_gr_hash_struct = &copy_gr_hash_struct_normal;
83390+ copy_pointer_from_array = &copy_pointer_from_array_normal;
83391+ get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_normal;
83392+ }
83393+ pax_close_kernel();
83394+#endif
83395+
83396+ req_count = get_gr_arg_wrapper_size();
83397+
83398+ if (count != req_count) {
83399+ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)req_count);
83400+ error = -EINVAL;
83401+ goto out;
83402+ }
83403+
83404+
83405+ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
83406+ gr_auth_expires = 0;
83407+ gr_auth_attempts = 0;
83408+ }
83409+
83410+ error = copy_gr_arg_wrapper(buf, &uwrap);
83411+ if (error)
83412+ goto out;
83413+
83414+ error = copy_gr_arg(uwrap.arg, gr_usermode);
83415+ if (error)
83416+ goto out;
83417+
83418+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
83419+ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
83420+ time_after(gr_auth_expires, get_seconds())) {
83421+ error = -EBUSY;
83422+ goto out;
83423+ }
83424+
83425+ /* if non-root trying to do anything other than use a special role,
83426+ do not attempt authentication, do not count towards authentication
83427+ locking
83428+ */
83429+
83430+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
83431+ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
83432+ gr_is_global_nonroot(current_uid())) {
83433+ error = -EPERM;
83434+ goto out;
83435+ }
83436+
83437+ /* ensure pw and special role name are null terminated */
83438+
83439+ gr_usermode->pw[GR_PW_LEN - 1] = '\0';
83440+ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
83441+
83442+ /* Okay.
83443+ * We have our enough of the argument structure..(we have yet
83444+ * to copy_from_user the tables themselves) . Copy the tables
83445+ * only if we need them, i.e. for loading operations. */
83446+
83447+ switch (gr_usermode->mode) {
83448+ case GR_STATUS:
83449+ if (gr_acl_is_enabled()) {
83450+ error = 1;
83451+ if (!gr_check_secure_terminal(current))
83452+ error = 3;
83453+ } else
83454+ error = 2;
83455+ goto out;
83456+ case GR_SHUTDOWN:
83457+ if (gr_acl_is_enabled() && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83458+ stop_machine(gr_rbac_disable, NULL, NULL);
83459+ free_variables(false);
83460+ memset(gr_usermode, 0, sizeof(struct gr_arg));
83461+ memset(gr_system_salt, 0, GR_SALT_LEN);
83462+ memset(gr_system_sum, 0, GR_SHA_LEN);
83463+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
83464+ } else if (gr_acl_is_enabled()) {
83465+ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
83466+ error = -EPERM;
83467+ } else {
83468+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
83469+ error = -EAGAIN;
83470+ }
83471+ break;
83472+ case GR_ENABLE:
83473+ if (!gr_acl_is_enabled() && !(error2 = gracl_init(gr_usermode)))
83474+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
83475+ else {
83476+ if (gr_acl_is_enabled())
83477+ error = -EAGAIN;
83478+ else
83479+ error = error2;
83480+ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
83481+ }
83482+ break;
83483+ case GR_OLDRELOAD:
83484+ oldmode = 1;
83485+ case GR_RELOAD:
83486+ if (!gr_acl_is_enabled()) {
83487+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
83488+ error = -EAGAIN;
83489+ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83490+ error2 = gracl_reload(gr_usermode, oldmode);
83491+ if (!error2)
83492+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
83493+ else {
83494+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
83495+ error = error2;
83496+ }
83497+ } else {
83498+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
83499+ error = -EPERM;
83500+ }
83501+ break;
83502+ case GR_SEGVMOD:
83503+ if (unlikely(!gr_acl_is_enabled())) {
83504+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
83505+ error = -EAGAIN;
83506+ break;
83507+ }
83508+
83509+ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83510+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
83511+ if (gr_usermode->segv_device && gr_usermode->segv_inode) {
83512+ struct acl_subject_label *segvacl;
83513+ segvacl =
83514+ lookup_acl_subj_label(gr_usermode->segv_inode,
83515+ gr_usermode->segv_device,
83516+ current->role);
83517+ if (segvacl) {
83518+ segvacl->crashes = 0;
83519+ segvacl->expires = 0;
83520+ }
83521+ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
83522+ gr_remove_uid(gr_usermode->segv_uid);
83523+ }
83524+ } else {
83525+ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
83526+ error = -EPERM;
83527+ }
83528+ break;
83529+ case GR_SPROLE:
83530+ case GR_SPROLEPAM:
83531+ if (unlikely(!gr_acl_is_enabled())) {
83532+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
83533+ error = -EAGAIN;
83534+ break;
83535+ }
83536+
83537+ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
83538+ current->role->expires = 0;
83539+ current->role->auth_attempts = 0;
83540+ }
83541+
83542+ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
83543+ time_after(current->role->expires, get_seconds())) {
83544+ error = -EBUSY;
83545+ goto out;
83546+ }
83547+
83548+ if (lookup_special_role_auth
83549+ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
83550+ && ((!sprole_salt && !sprole_sum)
83551+ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
83552+ char *p = "";
83553+ assign_special_role(gr_usermode->sp_role);
83554+ read_lock(&tasklist_lock);
83555+ if (current->real_parent)
83556+ p = current->real_parent->role->rolename;
83557+ read_unlock(&tasklist_lock);
83558+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
83559+ p, acl_sp_role_value);
83560+ } else {
83561+ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
83562+ error = -EPERM;
83563+ if(!(current->role->auth_attempts++))
83564+ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
83565+
83566+ goto out;
83567+ }
83568+ break;
83569+ case GR_UNSPROLE:
83570+ if (unlikely(!gr_acl_is_enabled())) {
83571+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
83572+ error = -EAGAIN;
83573+ break;
83574+ }
83575+
83576+ if (current->role->roletype & GR_ROLE_SPECIAL) {
83577+ char *p = "";
83578+ int i = 0;
83579+
83580+ read_lock(&tasklist_lock);
83581+ if (current->real_parent) {
83582+ p = current->real_parent->role->rolename;
83583+ i = current->real_parent->acl_role_id;
83584+ }
83585+ read_unlock(&tasklist_lock);
83586+
83587+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
83588+ gr_set_acls(1);
83589+ } else {
83590+ error = -EPERM;
83591+ goto out;
83592+ }
83593+ break;
83594+ default:
83595+ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
83596+ error = -EINVAL;
83597+ break;
83598+ }
83599+
83600+ if (error != -EPERM)
83601+ goto out;
83602+
83603+ if(!(gr_auth_attempts++))
83604+ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
83605+
83606+ out:
83607+ mutex_unlock(&gr_dev_mutex);
83608+
83609+ if (!error)
83610+ error = req_count;
83611+
83612+ return error;
83613+}
83614+
83615+int
83616+gr_set_acls(const int type)
83617+{
83618+ struct task_struct *task, *task2;
83619+ struct acl_role_label *role = current->role;
83620+ struct acl_subject_label *subj;
83621+ __u16 acl_role_id = current->acl_role_id;
83622+ const struct cred *cred;
83623+ int ret;
83624+
83625+ rcu_read_lock();
83626+ read_lock(&tasklist_lock);
83627+ read_lock(&grsec_exec_file_lock);
83628+ do_each_thread(task2, task) {
83629+ /* check to see if we're called from the exit handler,
83630+ if so, only replace ACLs that have inherited the admin
83631+ ACL */
83632+
83633+ if (type && (task->role != role ||
83634+ task->acl_role_id != acl_role_id))
83635+ continue;
83636+
83637+ task->acl_role_id = 0;
83638+ task->acl_sp_role = 0;
83639+ task->inherited = 0;
83640+
83641+ if (task->exec_file) {
83642+ cred = __task_cred(task);
83643+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83644+ subj = __gr_get_subject_for_task(polstate, task, NULL, 1);
83645+ if (subj == NULL) {
83646+ ret = -EINVAL;
83647+ read_unlock(&grsec_exec_file_lock);
83648+ read_unlock(&tasklist_lock);
83649+ rcu_read_unlock();
83650+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
83651+ return ret;
83652+ }
83653+ __gr_apply_subject_to_task(polstate, task, subj);
83654+ } else {
83655+ // it's a kernel process
83656+ task->role = polstate->kernel_role;
83657+ task->acl = polstate->kernel_role->root_label;
83658+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
83659+ task->acl->mode &= ~GR_PROCFIND;
83660+#endif
83661+ }
83662+ } while_each_thread(task2, task);
83663+ read_unlock(&grsec_exec_file_lock);
83664+ read_unlock(&tasklist_lock);
83665+ rcu_read_unlock();
83666+
83667+ return 0;
83668+}
83669diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
83670new file mode 100644
83671index 0000000..39645c9
83672--- /dev/null
83673+++ b/grsecurity/gracl_res.c
83674@@ -0,0 +1,68 @@
83675+#include <linux/kernel.h>
83676+#include <linux/sched.h>
83677+#include <linux/gracl.h>
83678+#include <linux/grinternal.h>
83679+
83680+static const char *restab_log[] = {
83681+ [RLIMIT_CPU] = "RLIMIT_CPU",
83682+ [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
83683+ [RLIMIT_DATA] = "RLIMIT_DATA",
83684+ [RLIMIT_STACK] = "RLIMIT_STACK",
83685+ [RLIMIT_CORE] = "RLIMIT_CORE",
83686+ [RLIMIT_RSS] = "RLIMIT_RSS",
83687+ [RLIMIT_NPROC] = "RLIMIT_NPROC",
83688+ [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
83689+ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
83690+ [RLIMIT_AS] = "RLIMIT_AS",
83691+ [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
83692+ [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
83693+ [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
83694+ [RLIMIT_NICE] = "RLIMIT_NICE",
83695+ [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
83696+ [RLIMIT_RTTIME] = "RLIMIT_RTTIME",
83697+ [GR_CRASH_RES] = "RLIMIT_CRASH"
83698+};
83699+
83700+void
83701+gr_log_resource(const struct task_struct *task,
83702+ const int res, const unsigned long wanted, const int gt)
83703+{
83704+ const struct cred *cred;
83705+ unsigned long rlim;
83706+
83707+ if (!gr_acl_is_enabled() && !grsec_resource_logging)
83708+ return;
83709+
83710+ // not yet supported resource
83711+ if (unlikely(!restab_log[res]))
83712+ return;
83713+
83714+ if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
83715+ rlim = task_rlimit_max(task, res);
83716+ else
83717+ rlim = task_rlimit(task, res);
83718+
83719+ if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
83720+ return;
83721+
83722+ rcu_read_lock();
83723+ cred = __task_cred(task);
83724+
83725+ if (res == RLIMIT_NPROC &&
83726+ (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) ||
83727+ cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
83728+ goto out_rcu_unlock;
83729+ else if (res == RLIMIT_MEMLOCK &&
83730+ cap_raised(cred->cap_effective, CAP_IPC_LOCK))
83731+ goto out_rcu_unlock;
83732+ else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
83733+ goto out_rcu_unlock;
83734+ rcu_read_unlock();
83735+
83736+ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
83737+
83738+ return;
83739+out_rcu_unlock:
83740+ rcu_read_unlock();
83741+ return;
83742+}
83743diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
83744new file mode 100644
83745index 0000000..35d9e65
83746--- /dev/null
83747+++ b/grsecurity/gracl_segv.c
83748@@ -0,0 +1,324 @@
83749+#include <linux/kernel.h>
83750+#include <linux/mm.h>
83751+#include <asm/uaccess.h>
83752+#include <asm/errno.h>
83753+#include <asm/mman.h>
83754+#include <net/sock.h>
83755+#include <linux/file.h>
83756+#include <linux/fs.h>
83757+#include <linux/net.h>
83758+#include <linux/in.h>
83759+#include <linux/slab.h>
83760+#include <linux/types.h>
83761+#include <linux/sched.h>
83762+#include <linux/timer.h>
83763+#include <linux/gracl.h>
83764+#include <linux/grsecurity.h>
83765+#include <linux/grinternal.h>
83766+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83767+#include <linux/magic.h>
83768+#include <linux/pagemap.h>
83769+#include "../fs/btrfs/async-thread.h"
83770+#include "../fs/btrfs/ctree.h"
83771+#include "../fs/btrfs/btrfs_inode.h"
83772+#endif
83773+
83774+static struct crash_uid *uid_set;
83775+static unsigned short uid_used;
83776+static DEFINE_SPINLOCK(gr_uid_lock);
83777+extern rwlock_t gr_inode_lock;
83778+extern struct acl_subject_label *
83779+ lookup_acl_subj_label(const u64 inode, const dev_t dev,
83780+ struct acl_role_label *role);
83781+
83782+static inline dev_t __get_dev(const struct dentry *dentry)
83783+{
83784+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83785+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
83786+ return BTRFS_I(dentry->d_inode)->root->anon_dev;
83787+ else
83788+#endif
83789+ return dentry->d_sb->s_dev;
83790+}
83791+
83792+static inline u64 __get_ino(const struct dentry *dentry)
83793+{
83794+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83795+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
83796+ return btrfs_ino(dentry->d_inode);
83797+ else
83798+#endif
83799+ return dentry->d_inode->i_ino;
83800+}
83801+
83802+int
83803+gr_init_uidset(void)
83804+{
83805+ uid_set =
83806+ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
83807+ uid_used = 0;
83808+
83809+ return uid_set ? 1 : 0;
83810+}
83811+
83812+void
83813+gr_free_uidset(void)
83814+{
83815+ if (uid_set) {
83816+ struct crash_uid *tmpset;
83817+ spin_lock(&gr_uid_lock);
83818+ tmpset = uid_set;
83819+ uid_set = NULL;
83820+ uid_used = 0;
83821+ spin_unlock(&gr_uid_lock);
83822+ if (tmpset)
83823+ kfree(tmpset);
83824+ }
83825+
83826+ return;
83827+}
83828+
83829+int
83830+gr_find_uid(const uid_t uid)
83831+{
83832+ struct crash_uid *tmp = uid_set;
83833+ uid_t buid;
83834+ int low = 0, high = uid_used - 1, mid;
83835+
83836+ while (high >= low) {
83837+ mid = (low + high) >> 1;
83838+ buid = tmp[mid].uid;
83839+ if (buid == uid)
83840+ return mid;
83841+ if (buid > uid)
83842+ high = mid - 1;
83843+ if (buid < uid)
83844+ low = mid + 1;
83845+ }
83846+
83847+ return -1;
83848+}
83849+
83850+static void
83851+gr_insertsort(void)
83852+{
83853+ unsigned short i, j;
83854+ struct crash_uid index;
83855+
83856+ for (i = 1; i < uid_used; i++) {
83857+ index = uid_set[i];
83858+ j = i;
83859+ while ((j > 0) && uid_set[j - 1].uid > index.uid) {
83860+ uid_set[j] = uid_set[j - 1];
83861+ j--;
83862+ }
83863+ uid_set[j] = index;
83864+ }
83865+
83866+ return;
83867+}
83868+
83869+static void
83870+gr_insert_uid(const kuid_t kuid, const unsigned long expires)
83871+{
83872+ int loc;
83873+ uid_t uid = GR_GLOBAL_UID(kuid);
83874+
83875+ if (uid_used == GR_UIDTABLE_MAX)
83876+ return;
83877+
83878+ loc = gr_find_uid(uid);
83879+
83880+ if (loc >= 0) {
83881+ uid_set[loc].expires = expires;
83882+ return;
83883+ }
83884+
83885+ uid_set[uid_used].uid = uid;
83886+ uid_set[uid_used].expires = expires;
83887+ uid_used++;
83888+
83889+ gr_insertsort();
83890+
83891+ return;
83892+}
83893+
83894+void
83895+gr_remove_uid(const unsigned short loc)
83896+{
83897+ unsigned short i;
83898+
83899+ for (i = loc + 1; i < uid_used; i++)
83900+ uid_set[i - 1] = uid_set[i];
83901+
83902+ uid_used--;
83903+
83904+ return;
83905+}
83906+
83907+int
83908+gr_check_crash_uid(const kuid_t kuid)
83909+{
83910+ int loc;
83911+ int ret = 0;
83912+ uid_t uid;
83913+
83914+ if (unlikely(!gr_acl_is_enabled()))
83915+ return 0;
83916+
83917+ uid = GR_GLOBAL_UID(kuid);
83918+
83919+ spin_lock(&gr_uid_lock);
83920+ loc = gr_find_uid(uid);
83921+
83922+ if (loc < 0)
83923+ goto out_unlock;
83924+
83925+ if (time_before_eq(uid_set[loc].expires, get_seconds()))
83926+ gr_remove_uid(loc);
83927+ else
83928+ ret = 1;
83929+
83930+out_unlock:
83931+ spin_unlock(&gr_uid_lock);
83932+ return ret;
83933+}
83934+
83935+static int
83936+proc_is_setxid(const struct cred *cred)
83937+{
83938+ if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
83939+ !uid_eq(cred->uid, cred->fsuid))
83940+ return 1;
83941+ if (!gid_eq(cred->gid, cred->egid) || !gid_eq(cred->gid, cred->sgid) ||
83942+ !gid_eq(cred->gid, cred->fsgid))
83943+ return 1;
83944+
83945+ return 0;
83946+}
83947+
83948+extern int gr_fake_force_sig(int sig, struct task_struct *t);
83949+
83950+void
83951+gr_handle_crash(struct task_struct *task, const int sig)
83952+{
83953+ struct acl_subject_label *curr;
83954+ struct task_struct *tsk, *tsk2;
83955+ const struct cred *cred;
83956+ const struct cred *cred2;
83957+
83958+ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
83959+ return;
83960+
83961+ if (unlikely(!gr_acl_is_enabled()))
83962+ return;
83963+
83964+ curr = task->acl;
83965+
83966+ if (!(curr->resmask & (1U << GR_CRASH_RES)))
83967+ return;
83968+
83969+ if (time_before_eq(curr->expires, get_seconds())) {
83970+ curr->expires = 0;
83971+ curr->crashes = 0;
83972+ }
83973+
83974+ curr->crashes++;
83975+
83976+ if (!curr->expires)
83977+ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
83978+
83979+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
83980+ time_after(curr->expires, get_seconds())) {
83981+ rcu_read_lock();
83982+ cred = __task_cred(task);
83983+ if (gr_is_global_nonroot(cred->uid) && proc_is_setxid(cred)) {
83984+ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
83985+ spin_lock(&gr_uid_lock);
83986+ gr_insert_uid(cred->uid, curr->expires);
83987+ spin_unlock(&gr_uid_lock);
83988+ curr->expires = 0;
83989+ curr->crashes = 0;
83990+ read_lock(&tasklist_lock);
83991+ do_each_thread(tsk2, tsk) {
83992+ cred2 = __task_cred(tsk);
83993+ if (tsk != task && uid_eq(cred2->uid, cred->uid))
83994+ gr_fake_force_sig(SIGKILL, tsk);
83995+ } while_each_thread(tsk2, tsk);
83996+ read_unlock(&tasklist_lock);
83997+ } else {
83998+ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
83999+ read_lock(&tasklist_lock);
84000+ read_lock(&grsec_exec_file_lock);
84001+ do_each_thread(tsk2, tsk) {
84002+ if (likely(tsk != task)) {
84003+ // if this thread has the same subject as the one that triggered
84004+ // RES_CRASH and it's the same binary, kill it
84005+ if (tsk->acl == task->acl && gr_is_same_file(tsk->exec_file, task->exec_file))
84006+ gr_fake_force_sig(SIGKILL, tsk);
84007+ }
84008+ } while_each_thread(tsk2, tsk);
84009+ read_unlock(&grsec_exec_file_lock);
84010+ read_unlock(&tasklist_lock);
84011+ }
84012+ rcu_read_unlock();
84013+ }
84014+
84015+ return;
84016+}
84017+
84018+int
84019+gr_check_crash_exec(const struct file *filp)
84020+{
84021+ struct acl_subject_label *curr;
84022+ struct dentry *dentry;
84023+
84024+ if (unlikely(!gr_acl_is_enabled()))
84025+ return 0;
84026+
84027+ read_lock(&gr_inode_lock);
84028+ dentry = filp->f_path.dentry;
84029+ curr = lookup_acl_subj_label(__get_ino(dentry), __get_dev(dentry),
84030+ current->role);
84031+ read_unlock(&gr_inode_lock);
84032+
84033+ if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
84034+ (!curr->crashes && !curr->expires))
84035+ return 0;
84036+
84037+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
84038+ time_after(curr->expires, get_seconds()))
84039+ return 1;
84040+ else if (time_before_eq(curr->expires, get_seconds())) {
84041+ curr->crashes = 0;
84042+ curr->expires = 0;
84043+ }
84044+
84045+ return 0;
84046+}
84047+
84048+void
84049+gr_handle_alertkill(struct task_struct *task)
84050+{
84051+ struct acl_subject_label *curracl;
84052+ __u32 curr_ip;
84053+ struct task_struct *p, *p2;
84054+
84055+ if (unlikely(!gr_acl_is_enabled()))
84056+ return;
84057+
84058+ curracl = task->acl;
84059+ curr_ip = task->signal->curr_ip;
84060+
84061+ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
84062+ read_lock(&tasklist_lock);
84063+ do_each_thread(p2, p) {
84064+ if (p->signal->curr_ip == curr_ip)
84065+ gr_fake_force_sig(SIGKILL, p);
84066+ } while_each_thread(p2, p);
84067+ read_unlock(&tasklist_lock);
84068+ } else if (curracl->mode & GR_KILLPROC)
84069+ gr_fake_force_sig(SIGKILL, task);
84070+
84071+ return;
84072+}
84073diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
84074new file mode 100644
84075index 0000000..6b0c9cc
84076--- /dev/null
84077+++ b/grsecurity/gracl_shm.c
84078@@ -0,0 +1,40 @@
84079+#include <linux/kernel.h>
84080+#include <linux/mm.h>
84081+#include <linux/sched.h>
84082+#include <linux/file.h>
84083+#include <linux/ipc.h>
84084+#include <linux/gracl.h>
84085+#include <linux/grsecurity.h>
84086+#include <linux/grinternal.h>
84087+
84088+int
84089+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84090+ const u64 shm_createtime, const kuid_t cuid, const int shmid)
84091+{
84092+ struct task_struct *task;
84093+
84094+ if (!gr_acl_is_enabled())
84095+ return 1;
84096+
84097+ rcu_read_lock();
84098+ read_lock(&tasklist_lock);
84099+
84100+ task = find_task_by_vpid(shm_cprid);
84101+
84102+ if (unlikely(!task))
84103+ task = find_task_by_vpid(shm_lapid);
84104+
84105+ if (unlikely(task && (time_before_eq64(task->start_time, shm_createtime) ||
84106+ (task_pid_nr(task) == shm_lapid)) &&
84107+ (task->acl->mode & GR_PROTSHM) &&
84108+ (task->acl != current->acl))) {
84109+ read_unlock(&tasklist_lock);
84110+ rcu_read_unlock();
84111+ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
84112+ return 0;
84113+ }
84114+ read_unlock(&tasklist_lock);
84115+ rcu_read_unlock();
84116+
84117+ return 1;
84118+}
84119diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
84120new file mode 100644
84121index 0000000..bc0be01
84122--- /dev/null
84123+++ b/grsecurity/grsec_chdir.c
84124@@ -0,0 +1,19 @@
84125+#include <linux/kernel.h>
84126+#include <linux/sched.h>
84127+#include <linux/fs.h>
84128+#include <linux/file.h>
84129+#include <linux/grsecurity.h>
84130+#include <linux/grinternal.h>
84131+
84132+void
84133+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
84134+{
84135+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
84136+ if ((grsec_enable_chdir && grsec_enable_group &&
84137+ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
84138+ !grsec_enable_group)) {
84139+ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
84140+ }
84141+#endif
84142+ return;
84143+}
84144diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
84145new file mode 100644
84146index 0000000..114ea4f
84147--- /dev/null
84148+++ b/grsecurity/grsec_chroot.c
84149@@ -0,0 +1,467 @@
84150+#include <linux/kernel.h>
84151+#include <linux/module.h>
84152+#include <linux/sched.h>
84153+#include <linux/file.h>
84154+#include <linux/fs.h>
84155+#include <linux/mount.h>
84156+#include <linux/types.h>
84157+#include "../fs/mount.h"
84158+#include <linux/grsecurity.h>
84159+#include <linux/grinternal.h>
84160+
84161+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84162+int gr_init_ran;
84163+#endif
84164+
84165+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
84166+{
84167+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84168+ struct dentry *tmpd = dentry;
84169+
84170+ read_seqlock_excl(&mount_lock);
84171+ write_seqlock(&rename_lock);
84172+
84173+ while (tmpd != mnt->mnt_root) {
84174+ atomic_inc(&tmpd->chroot_refcnt);
84175+ tmpd = tmpd->d_parent;
84176+ }
84177+ atomic_inc(&tmpd->chroot_refcnt);
84178+
84179+ write_sequnlock(&rename_lock);
84180+ read_sequnlock_excl(&mount_lock);
84181+#endif
84182+}
84183+
84184+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
84185+{
84186+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84187+ struct dentry *tmpd = dentry;
84188+
84189+ read_seqlock_excl(&mount_lock);
84190+ write_seqlock(&rename_lock);
84191+
84192+ while (tmpd != mnt->mnt_root) {
84193+ atomic_dec(&tmpd->chroot_refcnt);
84194+ tmpd = tmpd->d_parent;
84195+ }
84196+ atomic_dec(&tmpd->chroot_refcnt);
84197+
84198+ write_sequnlock(&rename_lock);
84199+ read_sequnlock_excl(&mount_lock);
84200+#endif
84201+}
84202+
84203+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84204+static struct dentry *get_closest_chroot(struct dentry *dentry)
84205+{
84206+ write_seqlock(&rename_lock);
84207+ do {
84208+ if (atomic_read(&dentry->chroot_refcnt)) {
84209+ write_sequnlock(&rename_lock);
84210+ return dentry;
84211+ }
84212+ dentry = dentry->d_parent;
84213+ } while (!IS_ROOT(dentry));
84214+ write_sequnlock(&rename_lock);
84215+ return NULL;
84216+}
84217+#endif
84218+
84219+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
84220+ struct dentry *newdentry, struct vfsmount *newmnt)
84221+{
84222+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84223+ struct dentry *chroot;
84224+
84225+ if (unlikely(!grsec_enable_chroot_rename))
84226+ return 0;
84227+
84228+ if (likely(!proc_is_chrooted(current) && gr_is_global_root(current_uid())))
84229+ return 0;
84230+
84231+ chroot = get_closest_chroot(olddentry);
84232+
84233+ if (chroot == NULL)
84234+ return 0;
84235+
84236+ if (is_subdir(newdentry, chroot))
84237+ return 0;
84238+
84239+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_RENAME_MSG, olddentry, oldmnt);
84240+
84241+ return 1;
84242+#else
84243+ return 0;
84244+#endif
84245+}
84246+
84247+void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
84248+{
84249+#ifdef CONFIG_GRKERNSEC
84250+ if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
84251+ path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
84252+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84253+ && gr_init_ran
84254+#endif
84255+ )
84256+ task->gr_is_chrooted = 1;
84257+ else {
84258+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84259+ if (task_pid_nr(task) == 1 && !gr_init_ran)
84260+ gr_init_ran = 1;
84261+#endif
84262+ task->gr_is_chrooted = 0;
84263+ }
84264+
84265+ task->gr_chroot_dentry = path->dentry;
84266+#endif
84267+ return;
84268+}
84269+
84270+void gr_clear_chroot_entries(struct task_struct *task)
84271+{
84272+#ifdef CONFIG_GRKERNSEC
84273+ task->gr_is_chrooted = 0;
84274+ task->gr_chroot_dentry = NULL;
84275+#endif
84276+ return;
84277+}
84278+
84279+int
84280+gr_handle_chroot_unix(const pid_t pid)
84281+{
84282+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
84283+ struct task_struct *p;
84284+
84285+ if (unlikely(!grsec_enable_chroot_unix))
84286+ return 1;
84287+
84288+ if (likely(!proc_is_chrooted(current)))
84289+ return 1;
84290+
84291+ rcu_read_lock();
84292+ read_lock(&tasklist_lock);
84293+ p = find_task_by_vpid_unrestricted(pid);
84294+ if (unlikely(p && !have_same_root(current, p))) {
84295+ read_unlock(&tasklist_lock);
84296+ rcu_read_unlock();
84297+ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
84298+ return 0;
84299+ }
84300+ read_unlock(&tasklist_lock);
84301+ rcu_read_unlock();
84302+#endif
84303+ return 1;
84304+}
84305+
84306+int
84307+gr_handle_chroot_nice(void)
84308+{
84309+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
84310+ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
84311+ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
84312+ return -EPERM;
84313+ }
84314+#endif
84315+ return 0;
84316+}
84317+
84318+int
84319+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
84320+{
84321+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
84322+ if (grsec_enable_chroot_nice && (niceval < task_nice(p))
84323+ && proc_is_chrooted(current)) {
84324+ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
84325+ return -EACCES;
84326+ }
84327+#endif
84328+ return 0;
84329+}
84330+
84331+int
84332+gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
84333+{
84334+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
84335+ struct task_struct *p;
84336+ int ret = 0;
84337+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
84338+ return ret;
84339+
84340+ read_lock(&tasklist_lock);
84341+ do_each_pid_task(pid, type, p) {
84342+ if (!have_same_root(current, p)) {
84343+ ret = 1;
84344+ goto out;
84345+ }
84346+ } while_each_pid_task(pid, type, p);
84347+out:
84348+ read_unlock(&tasklist_lock);
84349+ return ret;
84350+#endif
84351+ return 0;
84352+}
84353+
84354+int
84355+gr_pid_is_chrooted(struct task_struct *p)
84356+{
84357+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
84358+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
84359+ return 0;
84360+
84361+ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
84362+ !have_same_root(current, p)) {
84363+ return 1;
84364+ }
84365+#endif
84366+ return 0;
84367+}
84368+
84369+EXPORT_SYMBOL_GPL(gr_pid_is_chrooted);
84370+
84371+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
84372+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
84373+{
84374+ struct path path, currentroot;
84375+ int ret = 0;
84376+
84377+ path.dentry = (struct dentry *)u_dentry;
84378+ path.mnt = (struct vfsmount *)u_mnt;
84379+ get_fs_root(current->fs, &currentroot);
84380+ if (path_is_under(&path, &currentroot))
84381+ ret = 1;
84382+ path_put(&currentroot);
84383+
84384+ return ret;
84385+}
84386+#endif
84387+
84388+int
84389+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
84390+{
84391+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
84392+ if (!grsec_enable_chroot_fchdir)
84393+ return 1;
84394+
84395+ if (!proc_is_chrooted(current))
84396+ return 1;
84397+ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
84398+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
84399+ return 0;
84400+ }
84401+#endif
84402+ return 1;
84403+}
84404+
84405+int
84406+gr_chroot_fhandle(void)
84407+{
84408+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
84409+ if (!grsec_enable_chroot_fchdir)
84410+ return 1;
84411+
84412+ if (!proc_is_chrooted(current))
84413+ return 1;
84414+ else {
84415+ gr_log_noargs(GR_DONT_AUDIT, GR_CHROOT_FHANDLE_MSG);
84416+ return 0;
84417+ }
84418+#endif
84419+ return 1;
84420+}
84421+
84422+int
84423+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84424+ const u64 shm_createtime)
84425+{
84426+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
84427+ struct task_struct *p;
84428+
84429+ if (unlikely(!grsec_enable_chroot_shmat))
84430+ return 1;
84431+
84432+ if (likely(!proc_is_chrooted(current)))
84433+ return 1;
84434+
84435+ rcu_read_lock();
84436+ read_lock(&tasklist_lock);
84437+
84438+ if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
84439+ if (time_before_eq64(p->start_time, shm_createtime)) {
84440+ if (have_same_root(current, p)) {
84441+ goto allow;
84442+ } else {
84443+ read_unlock(&tasklist_lock);
84444+ rcu_read_unlock();
84445+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
84446+ return 0;
84447+ }
84448+ }
84449+ /* creator exited, pid reuse, fall through to next check */
84450+ }
84451+ if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
84452+ if (unlikely(!have_same_root(current, p))) {
84453+ read_unlock(&tasklist_lock);
84454+ rcu_read_unlock();
84455+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
84456+ return 0;
84457+ }
84458+ }
84459+
84460+allow:
84461+ read_unlock(&tasklist_lock);
84462+ rcu_read_unlock();
84463+#endif
84464+ return 1;
84465+}
84466+
84467+void
84468+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
84469+{
84470+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
84471+ if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
84472+ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
84473+#endif
84474+ return;
84475+}
84476+
84477+int
84478+gr_handle_chroot_mknod(const struct dentry *dentry,
84479+ const struct vfsmount *mnt, const int mode)
84480+{
84481+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
84482+ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
84483+ proc_is_chrooted(current)) {
84484+ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
84485+ return -EPERM;
84486+ }
84487+#endif
84488+ return 0;
84489+}
84490+
84491+int
84492+gr_handle_chroot_mount(const struct dentry *dentry,
84493+ const struct vfsmount *mnt, const char *dev_name)
84494+{
84495+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
84496+ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
84497+ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
84498+ return -EPERM;
84499+ }
84500+#endif
84501+ return 0;
84502+}
84503+
84504+int
84505+gr_handle_chroot_pivot(void)
84506+{
84507+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
84508+ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
84509+ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
84510+ return -EPERM;
84511+ }
84512+#endif
84513+ return 0;
84514+}
84515+
84516+int
84517+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
84518+{
84519+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
84520+ if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
84521+ !gr_is_outside_chroot(dentry, mnt)) {
84522+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
84523+ return -EPERM;
84524+ }
84525+#endif
84526+ return 0;
84527+}
84528+
84529+extern const char *captab_log[];
84530+extern int captab_log_entries;
84531+
84532+int
84533+gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
84534+{
84535+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84536+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
84537+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
84538+ if (cap_raised(chroot_caps, cap)) {
84539+ if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
84540+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
84541+ }
84542+ return 0;
84543+ }
84544+ }
84545+#endif
84546+ return 1;
84547+}
84548+
84549+int
84550+gr_chroot_is_capable(const int cap)
84551+{
84552+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84553+ return gr_task_chroot_is_capable(current, current_cred(), cap);
84554+#endif
84555+ return 1;
84556+}
84557+
84558+int
84559+gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
84560+{
84561+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84562+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
84563+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
84564+ if (cap_raised(chroot_caps, cap)) {
84565+ return 0;
84566+ }
84567+ }
84568+#endif
84569+ return 1;
84570+}
84571+
84572+int
84573+gr_chroot_is_capable_nolog(const int cap)
84574+{
84575+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84576+ return gr_task_chroot_is_capable_nolog(current, cap);
84577+#endif
84578+ return 1;
84579+}
84580+
84581+int
84582+gr_handle_chroot_sysctl(const int op)
84583+{
84584+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
84585+ if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
84586+ proc_is_chrooted(current))
84587+ return -EACCES;
84588+#endif
84589+ return 0;
84590+}
84591+
84592+void
84593+gr_handle_chroot_chdir(const struct path *path)
84594+{
84595+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
84596+ if (grsec_enable_chroot_chdir)
84597+ set_fs_pwd(current->fs, path);
84598+#endif
84599+ return;
84600+}
84601+
84602+int
84603+gr_handle_chroot_chmod(const struct dentry *dentry,
84604+ const struct vfsmount *mnt, const int mode)
84605+{
84606+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
84607+ /* allow chmod +s on directories, but not files */
84608+ if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
84609+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
84610+ proc_is_chrooted(current)) {
84611+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
84612+ return -EPERM;
84613+ }
84614+#endif
84615+ return 0;
84616+}
84617diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
84618new file mode 100644
84619index 0000000..946f750
84620--- /dev/null
84621+++ b/grsecurity/grsec_disabled.c
84622@@ -0,0 +1,445 @@
84623+#include <linux/kernel.h>
84624+#include <linux/module.h>
84625+#include <linux/sched.h>
84626+#include <linux/file.h>
84627+#include <linux/fs.h>
84628+#include <linux/kdev_t.h>
84629+#include <linux/net.h>
84630+#include <linux/in.h>
84631+#include <linux/ip.h>
84632+#include <linux/skbuff.h>
84633+#include <linux/sysctl.h>
84634+
84635+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
84636+void
84637+pax_set_initial_flags(struct linux_binprm *bprm)
84638+{
84639+ return;
84640+}
84641+#endif
84642+
84643+#ifdef CONFIG_SYSCTL
84644+__u32
84645+gr_handle_sysctl(const struct ctl_table * table, const int op)
84646+{
84647+ return 0;
84648+}
84649+#endif
84650+
84651+#ifdef CONFIG_TASKSTATS
84652+int gr_is_taskstats_denied(int pid)
84653+{
84654+ return 0;
84655+}
84656+#endif
84657+
84658+int
84659+gr_acl_is_enabled(void)
84660+{
84661+ return 0;
84662+}
84663+
84664+int
84665+gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
84666+{
84667+ return 0;
84668+}
84669+
84670+void
84671+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
84672+{
84673+ return;
84674+}
84675+
84676+int
84677+gr_handle_rawio(const struct inode *inode)
84678+{
84679+ return 0;
84680+}
84681+
84682+void
84683+gr_acl_handle_psacct(struct task_struct *task, const long code)
84684+{
84685+ return;
84686+}
84687+
84688+int
84689+gr_handle_ptrace(struct task_struct *task, const long request)
84690+{
84691+ return 0;
84692+}
84693+
84694+int
84695+gr_handle_proc_ptrace(struct task_struct *task)
84696+{
84697+ return 0;
84698+}
84699+
84700+int
84701+gr_set_acls(const int type)
84702+{
84703+ return 0;
84704+}
84705+
84706+int
84707+gr_check_hidden_task(const struct task_struct *tsk)
84708+{
84709+ return 0;
84710+}
84711+
84712+int
84713+gr_check_protected_task(const struct task_struct *task)
84714+{
84715+ return 0;
84716+}
84717+
84718+int
84719+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
84720+{
84721+ return 0;
84722+}
84723+
84724+void
84725+gr_copy_label(struct task_struct *tsk)
84726+{
84727+ return;
84728+}
84729+
84730+void
84731+gr_set_pax_flags(struct task_struct *task)
84732+{
84733+ return;
84734+}
84735+
84736+int
84737+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
84738+ const int unsafe_share)
84739+{
84740+ return 0;
84741+}
84742+
84743+void
84744+gr_handle_delete(const u64 ino, const dev_t dev)
84745+{
84746+ return;
84747+}
84748+
84749+void
84750+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
84751+{
84752+ return;
84753+}
84754+
84755+void
84756+gr_handle_crash(struct task_struct *task, const int sig)
84757+{
84758+ return;
84759+}
84760+
84761+int
84762+gr_check_crash_exec(const struct file *filp)
84763+{
84764+ return 0;
84765+}
84766+
84767+int
84768+gr_check_crash_uid(const kuid_t uid)
84769+{
84770+ return 0;
84771+}
84772+
84773+void
84774+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
84775+ struct dentry *old_dentry,
84776+ struct dentry *new_dentry,
84777+ struct vfsmount *mnt, const __u8 replace, unsigned int flags)
84778+{
84779+ return;
84780+}
84781+
84782+int
84783+gr_search_socket(const int family, const int type, const int protocol)
84784+{
84785+ return 1;
84786+}
84787+
84788+int
84789+gr_search_connectbind(const int mode, const struct socket *sock,
84790+ const struct sockaddr_in *addr)
84791+{
84792+ return 0;
84793+}
84794+
84795+void
84796+gr_handle_alertkill(struct task_struct *task)
84797+{
84798+ return;
84799+}
84800+
84801+__u32
84802+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
84803+{
84804+ return 1;
84805+}
84806+
84807+__u32
84808+gr_acl_handle_hidden_file(const struct dentry * dentry,
84809+ const struct vfsmount * mnt)
84810+{
84811+ return 1;
84812+}
84813+
84814+__u32
84815+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
84816+ int acc_mode)
84817+{
84818+ return 1;
84819+}
84820+
84821+__u32
84822+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
84823+{
84824+ return 1;
84825+}
84826+
84827+__u32
84828+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
84829+{
84830+ return 1;
84831+}
84832+
84833+int
84834+gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
84835+ unsigned int *vm_flags)
84836+{
84837+ return 1;
84838+}
84839+
84840+__u32
84841+gr_acl_handle_truncate(const struct dentry * dentry,
84842+ const struct vfsmount * mnt)
84843+{
84844+ return 1;
84845+}
84846+
84847+__u32
84848+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
84849+{
84850+ return 1;
84851+}
84852+
84853+__u32
84854+gr_acl_handle_access(const struct dentry * dentry,
84855+ const struct vfsmount * mnt, const int fmode)
84856+{
84857+ return 1;
84858+}
84859+
84860+__u32
84861+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
84862+ umode_t *mode)
84863+{
84864+ return 1;
84865+}
84866+
84867+__u32
84868+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
84869+{
84870+ return 1;
84871+}
84872+
84873+__u32
84874+gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
84875+{
84876+ return 1;
84877+}
84878+
84879+__u32
84880+gr_acl_handle_removexattr(const struct dentry * dentry, const struct vfsmount * mnt)
84881+{
84882+ return 1;
84883+}
84884+
84885+void
84886+grsecurity_init(void)
84887+{
84888+ return;
84889+}
84890+
84891+umode_t gr_acl_umask(void)
84892+{
84893+ return 0;
84894+}
84895+
84896+__u32
84897+gr_acl_handle_mknod(const struct dentry * new_dentry,
84898+ const struct dentry * parent_dentry,
84899+ const struct vfsmount * parent_mnt,
84900+ const int mode)
84901+{
84902+ return 1;
84903+}
84904+
84905+__u32
84906+gr_acl_handle_mkdir(const struct dentry * new_dentry,
84907+ const struct dentry * parent_dentry,
84908+ const struct vfsmount * parent_mnt)
84909+{
84910+ return 1;
84911+}
84912+
84913+__u32
84914+gr_acl_handle_symlink(const struct dentry * new_dentry,
84915+ const struct dentry * parent_dentry,
84916+ const struct vfsmount * parent_mnt, const struct filename *from)
84917+{
84918+ return 1;
84919+}
84920+
84921+__u32
84922+gr_acl_handle_link(const struct dentry * new_dentry,
84923+ const struct dentry * parent_dentry,
84924+ const struct vfsmount * parent_mnt,
84925+ const struct dentry * old_dentry,
84926+ const struct vfsmount * old_mnt, const struct filename *to)
84927+{
84928+ return 1;
84929+}
84930+
84931+int
84932+gr_acl_handle_rename(const struct dentry *new_dentry,
84933+ const struct dentry *parent_dentry,
84934+ const struct vfsmount *parent_mnt,
84935+ const struct dentry *old_dentry,
84936+ const struct inode *old_parent_inode,
84937+ const struct vfsmount *old_mnt, const struct filename *newname,
84938+ unsigned int flags)
84939+{
84940+ return 0;
84941+}
84942+
84943+int
84944+gr_acl_handle_filldir(const struct file *file, const char *name,
84945+ const int namelen, const u64 ino)
84946+{
84947+ return 1;
84948+}
84949+
84950+int
84951+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84952+ const u64 shm_createtime, const kuid_t cuid, const int shmid)
84953+{
84954+ return 1;
84955+}
84956+
84957+int
84958+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
84959+{
84960+ return 0;
84961+}
84962+
84963+int
84964+gr_search_accept(const struct socket *sock)
84965+{
84966+ return 0;
84967+}
84968+
84969+int
84970+gr_search_listen(const struct socket *sock)
84971+{
84972+ return 0;
84973+}
84974+
84975+int
84976+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
84977+{
84978+ return 0;
84979+}
84980+
84981+__u32
84982+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
84983+{
84984+ return 1;
84985+}
84986+
84987+__u32
84988+gr_acl_handle_creat(const struct dentry * dentry,
84989+ const struct dentry * p_dentry,
84990+ const struct vfsmount * p_mnt, int open_flags, int acc_mode,
84991+ const int imode)
84992+{
84993+ return 1;
84994+}
84995+
84996+void
84997+gr_acl_handle_exit(void)
84998+{
84999+ return;
85000+}
85001+
85002+int
85003+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
85004+{
85005+ return 1;
85006+}
85007+
85008+void
85009+gr_set_role_label(const kuid_t uid, const kgid_t gid)
85010+{
85011+ return;
85012+}
85013+
85014+int
85015+gr_acl_handle_procpidmem(const struct task_struct *task)
85016+{
85017+ return 0;
85018+}
85019+
85020+int
85021+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
85022+{
85023+ return 0;
85024+}
85025+
85026+int
85027+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
85028+{
85029+ return 0;
85030+}
85031+
85032+int
85033+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
85034+{
85035+ return 0;
85036+}
85037+
85038+int
85039+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
85040+{
85041+ return 0;
85042+}
85043+
85044+int gr_acl_enable_at_secure(void)
85045+{
85046+ return 0;
85047+}
85048+
85049+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
85050+{
85051+ return dentry->d_sb->s_dev;
85052+}
85053+
85054+u64 gr_get_ino_from_dentry(struct dentry *dentry)
85055+{
85056+ return dentry->d_inode->i_ino;
85057+}
85058+
85059+void gr_put_exec_file(struct task_struct *task)
85060+{
85061+ return;
85062+}
85063+
85064+#ifdef CONFIG_SECURITY
85065+EXPORT_SYMBOL_GPL(gr_check_user_change);
85066+EXPORT_SYMBOL_GPL(gr_check_group_change);
85067+#endif
85068diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
85069new file mode 100644
85070index 0000000..fb7531e
85071--- /dev/null
85072+++ b/grsecurity/grsec_exec.c
85073@@ -0,0 +1,189 @@
85074+#include <linux/kernel.h>
85075+#include <linux/sched.h>
85076+#include <linux/file.h>
85077+#include <linux/binfmts.h>
85078+#include <linux/fs.h>
85079+#include <linux/types.h>
85080+#include <linux/grdefs.h>
85081+#include <linux/grsecurity.h>
85082+#include <linux/grinternal.h>
85083+#include <linux/capability.h>
85084+#include <linux/module.h>
85085+#include <linux/compat.h>
85086+
85087+#include <asm/uaccess.h>
85088+
85089+#ifdef CONFIG_GRKERNSEC_EXECLOG
85090+static char gr_exec_arg_buf[132];
85091+static DEFINE_MUTEX(gr_exec_arg_mutex);
85092+#endif
85093+
85094+struct user_arg_ptr {
85095+#ifdef CONFIG_COMPAT
85096+ bool is_compat;
85097+#endif
85098+ union {
85099+ const char __user *const __user *native;
85100+#ifdef CONFIG_COMPAT
85101+ const compat_uptr_t __user *compat;
85102+#endif
85103+ } ptr;
85104+};
85105+
85106+extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
85107+
85108+void
85109+gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
85110+{
85111+#ifdef CONFIG_GRKERNSEC_EXECLOG
85112+ char *grarg = gr_exec_arg_buf;
85113+ unsigned int i, x, execlen = 0;
85114+ char c;
85115+
85116+ if (!((grsec_enable_execlog && grsec_enable_group &&
85117+ in_group_p(grsec_audit_gid))
85118+ || (grsec_enable_execlog && !grsec_enable_group)))
85119+ return;
85120+
85121+ mutex_lock(&gr_exec_arg_mutex);
85122+ memset(grarg, 0, sizeof(gr_exec_arg_buf));
85123+
85124+ for (i = 0; i < bprm->argc && execlen < 128; i++) {
85125+ const char __user *p;
85126+ unsigned int len;
85127+
85128+ p = get_user_arg_ptr(argv, i);
85129+ if (IS_ERR(p))
85130+ goto log;
85131+
85132+ len = strnlen_user(p, 128 - execlen);
85133+ if (len > 128 - execlen)
85134+ len = 128 - execlen;
85135+ else if (len > 0)
85136+ len--;
85137+ if (copy_from_user(grarg + execlen, p, len))
85138+ goto log;
85139+
85140+ /* rewrite unprintable characters */
85141+ for (x = 0; x < len; x++) {
85142+ c = *(grarg + execlen + x);
85143+ if (c < 32 || c > 126)
85144+ *(grarg + execlen + x) = ' ';
85145+ }
85146+
85147+ execlen += len;
85148+ *(grarg + execlen) = ' ';
85149+ *(grarg + execlen + 1) = '\0';
85150+ execlen++;
85151+ }
85152+
85153+ log:
85154+ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
85155+ bprm->file->f_path.mnt, grarg);
85156+ mutex_unlock(&gr_exec_arg_mutex);
85157+#endif
85158+ return;
85159+}
85160+
85161+#ifdef CONFIG_GRKERNSEC
85162+extern int gr_acl_is_capable(const int cap);
85163+extern int gr_acl_is_capable_nolog(const int cap);
85164+extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
85165+extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
85166+extern int gr_chroot_is_capable(const int cap);
85167+extern int gr_chroot_is_capable_nolog(const int cap);
85168+extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
85169+extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
85170+#endif
85171+
85172+const char *captab_log[] = {
85173+ "CAP_CHOWN",
85174+ "CAP_DAC_OVERRIDE",
85175+ "CAP_DAC_READ_SEARCH",
85176+ "CAP_FOWNER",
85177+ "CAP_FSETID",
85178+ "CAP_KILL",
85179+ "CAP_SETGID",
85180+ "CAP_SETUID",
85181+ "CAP_SETPCAP",
85182+ "CAP_LINUX_IMMUTABLE",
85183+ "CAP_NET_BIND_SERVICE",
85184+ "CAP_NET_BROADCAST",
85185+ "CAP_NET_ADMIN",
85186+ "CAP_NET_RAW",
85187+ "CAP_IPC_LOCK",
85188+ "CAP_IPC_OWNER",
85189+ "CAP_SYS_MODULE",
85190+ "CAP_SYS_RAWIO",
85191+ "CAP_SYS_CHROOT",
85192+ "CAP_SYS_PTRACE",
85193+ "CAP_SYS_PACCT",
85194+ "CAP_SYS_ADMIN",
85195+ "CAP_SYS_BOOT",
85196+ "CAP_SYS_NICE",
85197+ "CAP_SYS_RESOURCE",
85198+ "CAP_SYS_TIME",
85199+ "CAP_SYS_TTY_CONFIG",
85200+ "CAP_MKNOD",
85201+ "CAP_LEASE",
85202+ "CAP_AUDIT_WRITE",
85203+ "CAP_AUDIT_CONTROL",
85204+ "CAP_SETFCAP",
85205+ "CAP_MAC_OVERRIDE",
85206+ "CAP_MAC_ADMIN",
85207+ "CAP_SYSLOG",
85208+ "CAP_WAKE_ALARM",
85209+ "CAP_BLOCK_SUSPEND",
85210+ "CAP_AUDIT_READ"
85211+};
85212+
85213+int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
85214+
85215+int gr_is_capable(const int cap)
85216+{
85217+#ifdef CONFIG_GRKERNSEC
85218+ if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
85219+ return 1;
85220+ return 0;
85221+#else
85222+ return 1;
85223+#endif
85224+}
85225+
85226+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
85227+{
85228+#ifdef CONFIG_GRKERNSEC
85229+ if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
85230+ return 1;
85231+ return 0;
85232+#else
85233+ return 1;
85234+#endif
85235+}
85236+
85237+int gr_is_capable_nolog(const int cap)
85238+{
85239+#ifdef CONFIG_GRKERNSEC
85240+ if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
85241+ return 1;
85242+ return 0;
85243+#else
85244+ return 1;
85245+#endif
85246+}
85247+
85248+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
85249+{
85250+#ifdef CONFIG_GRKERNSEC
85251+ if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
85252+ return 1;
85253+ return 0;
85254+#else
85255+ return 1;
85256+#endif
85257+}
85258+
85259+EXPORT_SYMBOL_GPL(gr_is_capable);
85260+EXPORT_SYMBOL_GPL(gr_is_capable_nolog);
85261+EXPORT_SYMBOL_GPL(gr_task_is_capable);
85262+EXPORT_SYMBOL_GPL(gr_task_is_capable_nolog);
85263diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
85264new file mode 100644
85265index 0000000..06cc6ea
85266--- /dev/null
85267+++ b/grsecurity/grsec_fifo.c
85268@@ -0,0 +1,24 @@
85269+#include <linux/kernel.h>
85270+#include <linux/sched.h>
85271+#include <linux/fs.h>
85272+#include <linux/file.h>
85273+#include <linux/grinternal.h>
85274+
85275+int
85276+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
85277+ const struct dentry *dir, const int flag, const int acc_mode)
85278+{
85279+#ifdef CONFIG_GRKERNSEC_FIFO
85280+ const struct cred *cred = current_cred();
85281+
85282+ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
85283+ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
85284+ !uid_eq(dentry->d_inode->i_uid, dir->d_inode->i_uid) &&
85285+ !uid_eq(cred->fsuid, dentry->d_inode->i_uid)) {
85286+ if (!inode_permission(dentry->d_inode, acc_mode))
85287+ 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));
85288+ return -EACCES;
85289+ }
85290+#endif
85291+ return 0;
85292+}
85293diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
85294new file mode 100644
85295index 0000000..8ca18bf
85296--- /dev/null
85297+++ b/grsecurity/grsec_fork.c
85298@@ -0,0 +1,23 @@
85299+#include <linux/kernel.h>
85300+#include <linux/sched.h>
85301+#include <linux/grsecurity.h>
85302+#include <linux/grinternal.h>
85303+#include <linux/errno.h>
85304+
85305+void
85306+gr_log_forkfail(const int retval)
85307+{
85308+#ifdef CONFIG_GRKERNSEC_FORKFAIL
85309+ if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
85310+ switch (retval) {
85311+ case -EAGAIN:
85312+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
85313+ break;
85314+ case -ENOMEM:
85315+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
85316+ break;
85317+ }
85318+ }
85319+#endif
85320+ return;
85321+}
85322diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
85323new file mode 100644
85324index 0000000..4ed9e7d
85325--- /dev/null
85326+++ b/grsecurity/grsec_init.c
85327@@ -0,0 +1,290 @@
85328+#include <linux/kernel.h>
85329+#include <linux/sched.h>
85330+#include <linux/mm.h>
85331+#include <linux/gracl.h>
85332+#include <linux/slab.h>
85333+#include <linux/vmalloc.h>
85334+#include <linux/percpu.h>
85335+#include <linux/module.h>
85336+
85337+int grsec_enable_ptrace_readexec;
85338+int grsec_enable_setxid;
85339+int grsec_enable_symlinkown;
85340+kgid_t grsec_symlinkown_gid;
85341+int grsec_enable_brute;
85342+int grsec_enable_link;
85343+int grsec_enable_dmesg;
85344+int grsec_enable_harden_ptrace;
85345+int grsec_enable_harden_ipc;
85346+int grsec_enable_fifo;
85347+int grsec_enable_execlog;
85348+int grsec_enable_signal;
85349+int grsec_enable_forkfail;
85350+int grsec_enable_audit_ptrace;
85351+int grsec_enable_time;
85352+int grsec_enable_group;
85353+kgid_t grsec_audit_gid;
85354+int grsec_enable_chdir;
85355+int grsec_enable_mount;
85356+int grsec_enable_rofs;
85357+int grsec_deny_new_usb;
85358+int grsec_enable_chroot_findtask;
85359+int grsec_enable_chroot_mount;
85360+int grsec_enable_chroot_shmat;
85361+int grsec_enable_chroot_fchdir;
85362+int grsec_enable_chroot_double;
85363+int grsec_enable_chroot_pivot;
85364+int grsec_enable_chroot_chdir;
85365+int grsec_enable_chroot_chmod;
85366+int grsec_enable_chroot_mknod;
85367+int grsec_enable_chroot_nice;
85368+int grsec_enable_chroot_execlog;
85369+int grsec_enable_chroot_caps;
85370+int grsec_enable_chroot_rename;
85371+int grsec_enable_chroot_sysctl;
85372+int grsec_enable_chroot_unix;
85373+int grsec_enable_tpe;
85374+kgid_t grsec_tpe_gid;
85375+int grsec_enable_blackhole;
85376+#ifdef CONFIG_IPV6_MODULE
85377+EXPORT_SYMBOL_GPL(grsec_enable_blackhole);
85378+#endif
85379+int grsec_lastack_retries;
85380+int grsec_enable_tpe_all;
85381+int grsec_enable_tpe_invert;
85382+int grsec_enable_socket_all;
85383+kgid_t grsec_socket_all_gid;
85384+int grsec_enable_socket_client;
85385+kgid_t grsec_socket_client_gid;
85386+int grsec_enable_socket_server;
85387+kgid_t grsec_socket_server_gid;
85388+int grsec_resource_logging;
85389+int grsec_disable_privio;
85390+int grsec_enable_log_rwxmaps;
85391+int grsec_lock;
85392+
85393+DEFINE_SPINLOCK(grsec_alert_lock);
85394+unsigned long grsec_alert_wtime = 0;
85395+unsigned long grsec_alert_fyet = 0;
85396+
85397+DEFINE_SPINLOCK(grsec_audit_lock);
85398+
85399+DEFINE_RWLOCK(grsec_exec_file_lock);
85400+
85401+char *gr_shared_page[4];
85402+
85403+char *gr_alert_log_fmt;
85404+char *gr_audit_log_fmt;
85405+char *gr_alert_log_buf;
85406+char *gr_audit_log_buf;
85407+
85408+extern struct gr_arg *gr_usermode;
85409+extern unsigned char *gr_system_salt;
85410+extern unsigned char *gr_system_sum;
85411+
85412+void __init
85413+grsecurity_init(void)
85414+{
85415+ int j;
85416+ /* create the per-cpu shared pages */
85417+
85418+#ifdef CONFIG_X86
85419+ memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
85420+#endif
85421+
85422+ for (j = 0; j < 4; j++) {
85423+ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
85424+ if (gr_shared_page[j] == NULL) {
85425+ panic("Unable to allocate grsecurity shared page");
85426+ return;
85427+ }
85428+ }
85429+
85430+ /* allocate log buffers */
85431+ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
85432+ if (!gr_alert_log_fmt) {
85433+ panic("Unable to allocate grsecurity alert log format buffer");
85434+ return;
85435+ }
85436+ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
85437+ if (!gr_audit_log_fmt) {
85438+ panic("Unable to allocate grsecurity audit log format buffer");
85439+ return;
85440+ }
85441+ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
85442+ if (!gr_alert_log_buf) {
85443+ panic("Unable to allocate grsecurity alert log buffer");
85444+ return;
85445+ }
85446+ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
85447+ if (!gr_audit_log_buf) {
85448+ panic("Unable to allocate grsecurity audit log buffer");
85449+ return;
85450+ }
85451+
85452+ /* allocate memory for authentication structure */
85453+ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
85454+ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
85455+ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
85456+
85457+ if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
85458+ panic("Unable to allocate grsecurity authentication structure");
85459+ return;
85460+ }
85461+
85462+#ifdef CONFIG_GRKERNSEC_IO
85463+#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
85464+ grsec_disable_privio = 1;
85465+#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
85466+ grsec_disable_privio = 1;
85467+#else
85468+ grsec_disable_privio = 0;
85469+#endif
85470+#endif
85471+
85472+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
85473+ /* for backward compatibility, tpe_invert always defaults to on if
85474+ enabled in the kernel
85475+ */
85476+ grsec_enable_tpe_invert = 1;
85477+#endif
85478+
85479+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
85480+#ifndef CONFIG_GRKERNSEC_SYSCTL
85481+ grsec_lock = 1;
85482+#endif
85483+
85484+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
85485+ grsec_enable_log_rwxmaps = 1;
85486+#endif
85487+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
85488+ grsec_enable_group = 1;
85489+ grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
85490+#endif
85491+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
85492+ grsec_enable_ptrace_readexec = 1;
85493+#endif
85494+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
85495+ grsec_enable_chdir = 1;
85496+#endif
85497+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
85498+ grsec_enable_harden_ptrace = 1;
85499+#endif
85500+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
85501+ grsec_enable_harden_ipc = 1;
85502+#endif
85503+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
85504+ grsec_enable_mount = 1;
85505+#endif
85506+#ifdef CONFIG_GRKERNSEC_LINK
85507+ grsec_enable_link = 1;
85508+#endif
85509+#ifdef CONFIG_GRKERNSEC_BRUTE
85510+ grsec_enable_brute = 1;
85511+#endif
85512+#ifdef CONFIG_GRKERNSEC_DMESG
85513+ grsec_enable_dmesg = 1;
85514+#endif
85515+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
85516+ grsec_enable_blackhole = 1;
85517+ grsec_lastack_retries = 4;
85518+#endif
85519+#ifdef CONFIG_GRKERNSEC_FIFO
85520+ grsec_enable_fifo = 1;
85521+#endif
85522+#ifdef CONFIG_GRKERNSEC_EXECLOG
85523+ grsec_enable_execlog = 1;
85524+#endif
85525+#ifdef CONFIG_GRKERNSEC_SETXID
85526+ grsec_enable_setxid = 1;
85527+#endif
85528+#ifdef CONFIG_GRKERNSEC_SIGNAL
85529+ grsec_enable_signal = 1;
85530+#endif
85531+#ifdef CONFIG_GRKERNSEC_FORKFAIL
85532+ grsec_enable_forkfail = 1;
85533+#endif
85534+#ifdef CONFIG_GRKERNSEC_TIME
85535+ grsec_enable_time = 1;
85536+#endif
85537+#ifdef CONFIG_GRKERNSEC_RESLOG
85538+ grsec_resource_logging = 1;
85539+#endif
85540+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
85541+ grsec_enable_chroot_findtask = 1;
85542+#endif
85543+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
85544+ grsec_enable_chroot_unix = 1;
85545+#endif
85546+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
85547+ grsec_enable_chroot_mount = 1;
85548+#endif
85549+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
85550+ grsec_enable_chroot_fchdir = 1;
85551+#endif
85552+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
85553+ grsec_enable_chroot_shmat = 1;
85554+#endif
85555+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
85556+ grsec_enable_audit_ptrace = 1;
85557+#endif
85558+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
85559+ grsec_enable_chroot_double = 1;
85560+#endif
85561+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
85562+ grsec_enable_chroot_pivot = 1;
85563+#endif
85564+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
85565+ grsec_enable_chroot_chdir = 1;
85566+#endif
85567+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
85568+ grsec_enable_chroot_chmod = 1;
85569+#endif
85570+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
85571+ grsec_enable_chroot_mknod = 1;
85572+#endif
85573+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
85574+ grsec_enable_chroot_nice = 1;
85575+#endif
85576+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
85577+ grsec_enable_chroot_execlog = 1;
85578+#endif
85579+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
85580+ grsec_enable_chroot_caps = 1;
85581+#endif
85582+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
85583+ grsec_enable_chroot_rename = 1;
85584+#endif
85585+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
85586+ grsec_enable_chroot_sysctl = 1;
85587+#endif
85588+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
85589+ grsec_enable_symlinkown = 1;
85590+ grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
85591+#endif
85592+#ifdef CONFIG_GRKERNSEC_TPE
85593+ grsec_enable_tpe = 1;
85594+ grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
85595+#ifdef CONFIG_GRKERNSEC_TPE_ALL
85596+ grsec_enable_tpe_all = 1;
85597+#endif
85598+#endif
85599+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
85600+ grsec_enable_socket_all = 1;
85601+ grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
85602+#endif
85603+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
85604+ grsec_enable_socket_client = 1;
85605+ grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
85606+#endif
85607+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
85608+ grsec_enable_socket_server = 1;
85609+ grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
85610+#endif
85611+#endif
85612+#ifdef CONFIG_GRKERNSEC_DENYUSB_FORCE
85613+ grsec_deny_new_usb = 1;
85614+#endif
85615+
85616+ return;
85617+}
85618diff --git a/grsecurity/grsec_ipc.c b/grsecurity/grsec_ipc.c
85619new file mode 100644
85620index 0000000..1773300
85621--- /dev/null
85622+++ b/grsecurity/grsec_ipc.c
85623@@ -0,0 +1,48 @@
85624+#include <linux/kernel.h>
85625+#include <linux/mm.h>
85626+#include <linux/sched.h>
85627+#include <linux/file.h>
85628+#include <linux/ipc.h>
85629+#include <linux/ipc_namespace.h>
85630+#include <linux/grsecurity.h>
85631+#include <linux/grinternal.h>
85632+
85633+int
85634+gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode)
85635+{
85636+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
85637+ int write;
85638+ int orig_granted_mode;
85639+ kuid_t euid;
85640+ kgid_t egid;
85641+
85642+ if (!grsec_enable_harden_ipc)
85643+ return 1;
85644+
85645+ euid = current_euid();
85646+ egid = current_egid();
85647+
85648+ write = requested_mode & 00002;
85649+ orig_granted_mode = ipcp->mode;
85650+
85651+ if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid))
85652+ orig_granted_mode >>= 6;
85653+ else {
85654+ /* if likely wrong permissions, lock to user */
85655+ if (orig_granted_mode & 0007)
85656+ orig_granted_mode = 0;
85657+ /* otherwise do a egid-only check */
85658+ else if (gid_eq(egid, ipcp->cgid) || gid_eq(egid, ipcp->gid))
85659+ orig_granted_mode >>= 3;
85660+ /* otherwise, no access */
85661+ else
85662+ orig_granted_mode = 0;
85663+ }
85664+ if (!(requested_mode & ~granted_mode & 0007) && (requested_mode & ~orig_granted_mode & 0007) &&
85665+ !ns_capable_nolog(ns->user_ns, CAP_IPC_OWNER)) {
85666+ gr_log_str_int(GR_DONT_AUDIT, GR_IPC_DENIED_MSG, write ? "write" : "read", GR_GLOBAL_UID(ipcp->cuid));
85667+ return 0;
85668+ }
85669+#endif
85670+ return 1;
85671+}
85672diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
85673new file mode 100644
85674index 0000000..5e05e20
85675--- /dev/null
85676+++ b/grsecurity/grsec_link.c
85677@@ -0,0 +1,58 @@
85678+#include <linux/kernel.h>
85679+#include <linux/sched.h>
85680+#include <linux/fs.h>
85681+#include <linux/file.h>
85682+#include <linux/grinternal.h>
85683+
85684+int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
85685+{
85686+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
85687+ const struct inode *link_inode = link->dentry->d_inode;
85688+
85689+ if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
85690+ /* ignore root-owned links, e.g. /proc/self */
85691+ gr_is_global_nonroot(link_inode->i_uid) && target &&
85692+ !uid_eq(link_inode->i_uid, target->i_uid)) {
85693+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
85694+ return 1;
85695+ }
85696+#endif
85697+ return 0;
85698+}
85699+
85700+int
85701+gr_handle_follow_link(const struct inode *parent,
85702+ const struct inode *inode,
85703+ const struct dentry *dentry, const struct vfsmount *mnt)
85704+{
85705+#ifdef CONFIG_GRKERNSEC_LINK
85706+ const struct cred *cred = current_cred();
85707+
85708+ if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
85709+ (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
85710+ (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
85711+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
85712+ return -EACCES;
85713+ }
85714+#endif
85715+ return 0;
85716+}
85717+
85718+int
85719+gr_handle_hardlink(const struct dentry *dentry,
85720+ const struct vfsmount *mnt,
85721+ struct inode *inode, const int mode, const struct filename *to)
85722+{
85723+#ifdef CONFIG_GRKERNSEC_LINK
85724+ const struct cred *cred = current_cred();
85725+
85726+ if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
85727+ (!S_ISREG(mode) || is_privileged_binary(dentry) ||
85728+ (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
85729+ !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
85730+ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to->name);
85731+ return -EPERM;
85732+ }
85733+#endif
85734+ return 0;
85735+}
85736diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
85737new file mode 100644
85738index 0000000..dbe0a6b
85739--- /dev/null
85740+++ b/grsecurity/grsec_log.c
85741@@ -0,0 +1,341 @@
85742+#include <linux/kernel.h>
85743+#include <linux/sched.h>
85744+#include <linux/file.h>
85745+#include <linux/tty.h>
85746+#include <linux/fs.h>
85747+#include <linux/mm.h>
85748+#include <linux/grinternal.h>
85749+
85750+#ifdef CONFIG_TREE_PREEMPT_RCU
85751+#define DISABLE_PREEMPT() preempt_disable()
85752+#define ENABLE_PREEMPT() preempt_enable()
85753+#else
85754+#define DISABLE_PREEMPT()
85755+#define ENABLE_PREEMPT()
85756+#endif
85757+
85758+#define BEGIN_LOCKS(x) \
85759+ DISABLE_PREEMPT(); \
85760+ rcu_read_lock(); \
85761+ read_lock(&tasklist_lock); \
85762+ read_lock(&grsec_exec_file_lock); \
85763+ if (x != GR_DO_AUDIT) \
85764+ spin_lock(&grsec_alert_lock); \
85765+ else \
85766+ spin_lock(&grsec_audit_lock)
85767+
85768+#define END_LOCKS(x) \
85769+ if (x != GR_DO_AUDIT) \
85770+ spin_unlock(&grsec_alert_lock); \
85771+ else \
85772+ spin_unlock(&grsec_audit_lock); \
85773+ read_unlock(&grsec_exec_file_lock); \
85774+ read_unlock(&tasklist_lock); \
85775+ rcu_read_unlock(); \
85776+ ENABLE_PREEMPT(); \
85777+ if (x == GR_DONT_AUDIT) \
85778+ gr_handle_alertkill(current)
85779+
85780+enum {
85781+ FLOODING,
85782+ NO_FLOODING
85783+};
85784+
85785+extern char *gr_alert_log_fmt;
85786+extern char *gr_audit_log_fmt;
85787+extern char *gr_alert_log_buf;
85788+extern char *gr_audit_log_buf;
85789+
85790+static int gr_log_start(int audit)
85791+{
85792+ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
85793+ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
85794+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85795+#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
85796+ unsigned long curr_secs = get_seconds();
85797+
85798+ if (audit == GR_DO_AUDIT)
85799+ goto set_fmt;
85800+
85801+ if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
85802+ grsec_alert_wtime = curr_secs;
85803+ grsec_alert_fyet = 0;
85804+ } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
85805+ && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
85806+ grsec_alert_fyet++;
85807+ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
85808+ grsec_alert_wtime = curr_secs;
85809+ grsec_alert_fyet++;
85810+ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
85811+ return FLOODING;
85812+ }
85813+ else return FLOODING;
85814+
85815+set_fmt:
85816+#endif
85817+ memset(buf, 0, PAGE_SIZE);
85818+ if (current->signal->curr_ip && gr_acl_is_enabled()) {
85819+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
85820+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
85821+ } else if (current->signal->curr_ip) {
85822+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
85823+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
85824+ } else if (gr_acl_is_enabled()) {
85825+ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
85826+ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
85827+ } else {
85828+ sprintf(fmt, "%s%s", loglevel, "grsec: ");
85829+ strcpy(buf, fmt);
85830+ }
85831+
85832+ return NO_FLOODING;
85833+}
85834+
85835+static void gr_log_middle(int audit, const char *msg, va_list ap)
85836+ __attribute__ ((format (printf, 2, 0)));
85837+
85838+static void gr_log_middle(int audit, const char *msg, va_list ap)
85839+{
85840+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85841+ unsigned int len = strlen(buf);
85842+
85843+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
85844+
85845+ return;
85846+}
85847+
85848+static void gr_log_middle_varargs(int audit, const char *msg, ...)
85849+ __attribute__ ((format (printf, 2, 3)));
85850+
85851+static void gr_log_middle_varargs(int audit, const char *msg, ...)
85852+{
85853+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85854+ unsigned int len = strlen(buf);
85855+ va_list ap;
85856+
85857+ va_start(ap, msg);
85858+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
85859+ va_end(ap);
85860+
85861+ return;
85862+}
85863+
85864+static void gr_log_end(int audit, int append_default)
85865+{
85866+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85867+ if (append_default) {
85868+ struct task_struct *task = current;
85869+ struct task_struct *parent = task->real_parent;
85870+ const struct cred *cred = __task_cred(task);
85871+ const struct cred *pcred = __task_cred(parent);
85872+ unsigned int len = strlen(buf);
85873+
85874+ 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));
85875+ }
85876+
85877+ printk("%s\n", buf);
85878+
85879+ return;
85880+}
85881+
85882+void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
85883+{
85884+ int logtype;
85885+ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
85886+ char *str1 = NULL, *str2 = NULL, *str3 = NULL;
85887+ void *voidptr = NULL;
85888+ int num1 = 0, num2 = 0;
85889+ unsigned long ulong1 = 0, ulong2 = 0;
85890+ struct dentry *dentry = NULL;
85891+ struct vfsmount *mnt = NULL;
85892+ struct file *file = NULL;
85893+ struct task_struct *task = NULL;
85894+ struct vm_area_struct *vma = NULL;
85895+ const struct cred *cred, *pcred;
85896+ va_list ap;
85897+
85898+ BEGIN_LOCKS(audit);
85899+ logtype = gr_log_start(audit);
85900+ if (logtype == FLOODING) {
85901+ END_LOCKS(audit);
85902+ return;
85903+ }
85904+ va_start(ap, argtypes);
85905+ switch (argtypes) {
85906+ case GR_TTYSNIFF:
85907+ task = va_arg(ap, struct task_struct *);
85908+ 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));
85909+ break;
85910+ case GR_SYSCTL_HIDDEN:
85911+ str1 = va_arg(ap, char *);
85912+ gr_log_middle_varargs(audit, msg, result, str1);
85913+ break;
85914+ case GR_RBAC:
85915+ dentry = va_arg(ap, struct dentry *);
85916+ mnt = va_arg(ap, struct vfsmount *);
85917+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
85918+ break;
85919+ case GR_RBAC_STR:
85920+ dentry = va_arg(ap, struct dentry *);
85921+ mnt = va_arg(ap, struct vfsmount *);
85922+ str1 = va_arg(ap, char *);
85923+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
85924+ break;
85925+ case GR_STR_RBAC:
85926+ str1 = va_arg(ap, char *);
85927+ dentry = va_arg(ap, struct dentry *);
85928+ mnt = va_arg(ap, struct vfsmount *);
85929+ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
85930+ break;
85931+ case GR_RBAC_MODE2:
85932+ dentry = va_arg(ap, struct dentry *);
85933+ mnt = va_arg(ap, struct vfsmount *);
85934+ str1 = va_arg(ap, char *);
85935+ str2 = va_arg(ap, char *);
85936+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
85937+ break;
85938+ case GR_RBAC_MODE3:
85939+ dentry = va_arg(ap, struct dentry *);
85940+ mnt = va_arg(ap, struct vfsmount *);
85941+ str1 = va_arg(ap, char *);
85942+ str2 = va_arg(ap, char *);
85943+ str3 = va_arg(ap, char *);
85944+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
85945+ break;
85946+ case GR_FILENAME:
85947+ dentry = va_arg(ap, struct dentry *);
85948+ mnt = va_arg(ap, struct vfsmount *);
85949+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
85950+ break;
85951+ case GR_STR_FILENAME:
85952+ str1 = va_arg(ap, char *);
85953+ dentry = va_arg(ap, struct dentry *);
85954+ mnt = va_arg(ap, struct vfsmount *);
85955+ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
85956+ break;
85957+ case GR_FILENAME_STR:
85958+ dentry = va_arg(ap, struct dentry *);
85959+ mnt = va_arg(ap, struct vfsmount *);
85960+ str1 = va_arg(ap, char *);
85961+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
85962+ break;
85963+ case GR_FILENAME_TWO_INT:
85964+ dentry = va_arg(ap, struct dentry *);
85965+ mnt = va_arg(ap, struct vfsmount *);
85966+ num1 = va_arg(ap, int);
85967+ num2 = va_arg(ap, int);
85968+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
85969+ break;
85970+ case GR_FILENAME_TWO_INT_STR:
85971+ dentry = va_arg(ap, struct dentry *);
85972+ mnt = va_arg(ap, struct vfsmount *);
85973+ num1 = va_arg(ap, int);
85974+ num2 = va_arg(ap, int);
85975+ str1 = va_arg(ap, char *);
85976+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
85977+ break;
85978+ case GR_TEXTREL:
85979+ file = va_arg(ap, struct file *);
85980+ ulong1 = va_arg(ap, unsigned long);
85981+ ulong2 = va_arg(ap, unsigned long);
85982+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
85983+ break;
85984+ case GR_PTRACE:
85985+ task = va_arg(ap, struct task_struct *);
85986+ 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));
85987+ break;
85988+ case GR_RESOURCE:
85989+ task = va_arg(ap, struct task_struct *);
85990+ cred = __task_cred(task);
85991+ pcred = __task_cred(task->real_parent);
85992+ ulong1 = va_arg(ap, unsigned long);
85993+ str1 = va_arg(ap, char *);
85994+ ulong2 = va_arg(ap, unsigned long);
85995+ 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));
85996+ break;
85997+ case GR_CAP:
85998+ task = va_arg(ap, struct task_struct *);
85999+ cred = __task_cred(task);
86000+ pcred = __task_cred(task->real_parent);
86001+ str1 = va_arg(ap, char *);
86002+ 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));
86003+ break;
86004+ case GR_SIG:
86005+ str1 = va_arg(ap, char *);
86006+ voidptr = va_arg(ap, void *);
86007+ gr_log_middle_varargs(audit, msg, str1, voidptr);
86008+ break;
86009+ case GR_SIG2:
86010+ task = va_arg(ap, struct task_struct *);
86011+ cred = __task_cred(task);
86012+ pcred = __task_cred(task->real_parent);
86013+ num1 = va_arg(ap, int);
86014+ 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));
86015+ break;
86016+ case GR_CRASH1:
86017+ task = va_arg(ap, struct task_struct *);
86018+ cred = __task_cred(task);
86019+ pcred = __task_cred(task->real_parent);
86020+ ulong1 = va_arg(ap, unsigned long);
86021+ 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);
86022+ break;
86023+ case GR_CRASH2:
86024+ task = va_arg(ap, struct task_struct *);
86025+ cred = __task_cred(task);
86026+ pcred = __task_cred(task->real_parent);
86027+ ulong1 = va_arg(ap, unsigned long);
86028+ 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);
86029+ break;
86030+ case GR_RWXMAP:
86031+ file = va_arg(ap, struct file *);
86032+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
86033+ break;
86034+ case GR_RWXMAPVMA:
86035+ vma = va_arg(ap, struct vm_area_struct *);
86036+ if (vma->vm_file)
86037+ str1 = gr_to_filename(vma->vm_file->f_path.dentry, vma->vm_file->f_path.mnt);
86038+ else if (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
86039+ str1 = "<stack>";
86040+ else if (vma->vm_start <= current->mm->brk &&
86041+ vma->vm_end >= current->mm->start_brk)
86042+ str1 = "<heap>";
86043+ else
86044+ str1 = "<anonymous mapping>";
86045+ gr_log_middle_varargs(audit, msg, str1);
86046+ break;
86047+ case GR_PSACCT:
86048+ {
86049+ unsigned int wday, cday;
86050+ __u8 whr, chr;
86051+ __u8 wmin, cmin;
86052+ __u8 wsec, csec;
86053+ char cur_tty[64] = { 0 };
86054+ char parent_tty[64] = { 0 };
86055+
86056+ task = va_arg(ap, struct task_struct *);
86057+ wday = va_arg(ap, unsigned int);
86058+ cday = va_arg(ap, unsigned int);
86059+ whr = va_arg(ap, int);
86060+ chr = va_arg(ap, int);
86061+ wmin = va_arg(ap, int);
86062+ cmin = va_arg(ap, int);
86063+ wsec = va_arg(ap, int);
86064+ csec = va_arg(ap, int);
86065+ ulong1 = va_arg(ap, unsigned long);
86066+ cred = __task_cred(task);
86067+ pcred = __task_cred(task->real_parent);
86068+
86069+ 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));
86070+ }
86071+ break;
86072+ default:
86073+ gr_log_middle(audit, msg, ap);
86074+ }
86075+ va_end(ap);
86076+ // these don't need DEFAULTSECARGS printed on the end
86077+ if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
86078+ gr_log_end(audit, 0);
86079+ else
86080+ gr_log_end(audit, 1);
86081+ END_LOCKS(audit);
86082+}
86083diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
86084new file mode 100644
86085index 0000000..0e39d8c
86086--- /dev/null
86087+++ b/grsecurity/grsec_mem.c
86088@@ -0,0 +1,48 @@
86089+#include <linux/kernel.h>
86090+#include <linux/sched.h>
86091+#include <linux/mm.h>
86092+#include <linux/mman.h>
86093+#include <linux/module.h>
86094+#include <linux/grinternal.h>
86095+
86096+void gr_handle_msr_write(void)
86097+{
86098+ gr_log_noargs(GR_DONT_AUDIT, GR_MSRWRITE_MSG);
86099+ return;
86100+}
86101+EXPORT_SYMBOL_GPL(gr_handle_msr_write);
86102+
86103+void
86104+gr_handle_ioperm(void)
86105+{
86106+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
86107+ return;
86108+}
86109+
86110+void
86111+gr_handle_iopl(void)
86112+{
86113+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
86114+ return;
86115+}
86116+
86117+void
86118+gr_handle_mem_readwrite(u64 from, u64 to)
86119+{
86120+ gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
86121+ return;
86122+}
86123+
86124+void
86125+gr_handle_vm86(void)
86126+{
86127+ gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
86128+ return;
86129+}
86130+
86131+void
86132+gr_log_badprocpid(const char *entry)
86133+{
86134+ gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
86135+ return;
86136+}
86137diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
86138new file mode 100644
86139index 0000000..6f9eb73
86140--- /dev/null
86141+++ b/grsecurity/grsec_mount.c
86142@@ -0,0 +1,65 @@
86143+#include <linux/kernel.h>
86144+#include <linux/sched.h>
86145+#include <linux/mount.h>
86146+#include <linux/major.h>
86147+#include <linux/grsecurity.h>
86148+#include <linux/grinternal.h>
86149+
86150+void
86151+gr_log_remount(const char *devname, const int retval)
86152+{
86153+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86154+ if (grsec_enable_mount && (retval >= 0))
86155+ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
86156+#endif
86157+ return;
86158+}
86159+
86160+void
86161+gr_log_unmount(const char *devname, const int retval)
86162+{
86163+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86164+ if (grsec_enable_mount && (retval >= 0))
86165+ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
86166+#endif
86167+ return;
86168+}
86169+
86170+void
86171+gr_log_mount(const char *from, struct path *to, const int retval)
86172+{
86173+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86174+ if (grsec_enable_mount && (retval >= 0))
86175+ gr_log_str_fs(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to->dentry, to->mnt);
86176+#endif
86177+ return;
86178+}
86179+
86180+int
86181+gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
86182+{
86183+#ifdef CONFIG_GRKERNSEC_ROFS
86184+ if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
86185+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
86186+ return -EPERM;
86187+ } else
86188+ return 0;
86189+#endif
86190+ return 0;
86191+}
86192+
86193+int
86194+gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
86195+{
86196+#ifdef CONFIG_GRKERNSEC_ROFS
86197+ struct inode *inode = dentry->d_inode;
86198+
86199+ if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
86200+ inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR))) {
86201+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
86202+ return -EPERM;
86203+ } else
86204+ return 0;
86205+#endif
86206+ return 0;
86207+}
86208diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
86209new file mode 100644
86210index 0000000..6ee9d50
86211--- /dev/null
86212+++ b/grsecurity/grsec_pax.c
86213@@ -0,0 +1,45 @@
86214+#include <linux/kernel.h>
86215+#include <linux/sched.h>
86216+#include <linux/mm.h>
86217+#include <linux/file.h>
86218+#include <linux/grinternal.h>
86219+#include <linux/grsecurity.h>
86220+
86221+void
86222+gr_log_textrel(struct vm_area_struct * vma)
86223+{
86224+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86225+ if (grsec_enable_log_rwxmaps)
86226+ gr_log_textrel_ulong_ulong(GR_DONT_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
86227+#endif
86228+ return;
86229+}
86230+
86231+void gr_log_ptgnustack(struct file *file)
86232+{
86233+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86234+ if (grsec_enable_log_rwxmaps)
86235+ gr_log_rwxmap(GR_DONT_AUDIT, GR_PTGNUSTACK_MSG, file);
86236+#endif
86237+ return;
86238+}
86239+
86240+void
86241+gr_log_rwxmmap(struct file *file)
86242+{
86243+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86244+ if (grsec_enable_log_rwxmaps)
86245+ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
86246+#endif
86247+ return;
86248+}
86249+
86250+void
86251+gr_log_rwxmprotect(struct vm_area_struct *vma)
86252+{
86253+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86254+ if (grsec_enable_log_rwxmaps)
86255+ gr_log_rwxmap_vma(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, vma);
86256+#endif
86257+ return;
86258+}
86259diff --git a/grsecurity/grsec_proc.c b/grsecurity/grsec_proc.c
86260new file mode 100644
86261index 0000000..2005a3a
86262--- /dev/null
86263+++ b/grsecurity/grsec_proc.c
86264@@ -0,0 +1,20 @@
86265+#include <linux/kernel.h>
86266+#include <linux/sched.h>
86267+#include <linux/grsecurity.h>
86268+#include <linux/grinternal.h>
86269+
86270+int gr_proc_is_restricted(void)
86271+{
86272+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
86273+ const struct cred *cred = current_cred();
86274+#endif
86275+
86276+#ifdef CONFIG_GRKERNSEC_PROC_USER
86277+ if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
86278+ return -EACCES;
86279+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
86280+ if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
86281+ return -EACCES;
86282+#endif
86283+ return 0;
86284+}
86285diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
86286new file mode 100644
86287index 0000000..f7f29aa
86288--- /dev/null
86289+++ b/grsecurity/grsec_ptrace.c
86290@@ -0,0 +1,30 @@
86291+#include <linux/kernel.h>
86292+#include <linux/sched.h>
86293+#include <linux/grinternal.h>
86294+#include <linux/security.h>
86295+
86296+void
86297+gr_audit_ptrace(struct task_struct *task)
86298+{
86299+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
86300+ if (grsec_enable_audit_ptrace)
86301+ gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
86302+#endif
86303+ return;
86304+}
86305+
86306+int
86307+gr_ptrace_readexec(struct file *file, int unsafe_flags)
86308+{
86309+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
86310+ const struct dentry *dentry = file->f_path.dentry;
86311+ const struct vfsmount *mnt = file->f_path.mnt;
86312+
86313+ if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) &&
86314+ (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
86315+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
86316+ return -EACCES;
86317+ }
86318+#endif
86319+ return 0;
86320+}
86321diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
86322new file mode 100644
86323index 0000000..3860c7e
86324--- /dev/null
86325+++ b/grsecurity/grsec_sig.c
86326@@ -0,0 +1,236 @@
86327+#include <linux/kernel.h>
86328+#include <linux/sched.h>
86329+#include <linux/fs.h>
86330+#include <linux/delay.h>
86331+#include <linux/grsecurity.h>
86332+#include <linux/grinternal.h>
86333+#include <linux/hardirq.h>
86334+
86335+char *signames[] = {
86336+ [SIGSEGV] = "Segmentation fault",
86337+ [SIGILL] = "Illegal instruction",
86338+ [SIGABRT] = "Abort",
86339+ [SIGBUS] = "Invalid alignment/Bus error"
86340+};
86341+
86342+void
86343+gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
86344+{
86345+#ifdef CONFIG_GRKERNSEC_SIGNAL
86346+ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
86347+ (sig == SIGABRT) || (sig == SIGBUS))) {
86348+ if (task_pid_nr(t) == task_pid_nr(current)) {
86349+ gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
86350+ } else {
86351+ gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
86352+ }
86353+ }
86354+#endif
86355+ return;
86356+}
86357+
86358+int
86359+gr_handle_signal(const struct task_struct *p, const int sig)
86360+{
86361+#ifdef CONFIG_GRKERNSEC
86362+ /* ignore the 0 signal for protected task checks */
86363+ if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
86364+ gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
86365+ return -EPERM;
86366+ } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
86367+ return -EPERM;
86368+ }
86369+#endif
86370+ return 0;
86371+}
86372+
86373+#ifdef CONFIG_GRKERNSEC
86374+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
86375+
86376+int gr_fake_force_sig(int sig, struct task_struct *t)
86377+{
86378+ unsigned long int flags;
86379+ int ret, blocked, ignored;
86380+ struct k_sigaction *action;
86381+
86382+ spin_lock_irqsave(&t->sighand->siglock, flags);
86383+ action = &t->sighand->action[sig-1];
86384+ ignored = action->sa.sa_handler == SIG_IGN;
86385+ blocked = sigismember(&t->blocked, sig);
86386+ if (blocked || ignored) {
86387+ action->sa.sa_handler = SIG_DFL;
86388+ if (blocked) {
86389+ sigdelset(&t->blocked, sig);
86390+ recalc_sigpending_and_wake(t);
86391+ }
86392+ }
86393+ if (action->sa.sa_handler == SIG_DFL)
86394+ t->signal->flags &= ~SIGNAL_UNKILLABLE;
86395+ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
86396+
86397+ spin_unlock_irqrestore(&t->sighand->siglock, flags);
86398+
86399+ return ret;
86400+}
86401+#endif
86402+
86403+#define GR_USER_BAN_TIME (15 * 60)
86404+#define GR_DAEMON_BRUTE_TIME (30 * 60)
86405+
86406+void gr_handle_brute_attach(int dumpable)
86407+{
86408+#ifdef CONFIG_GRKERNSEC_BRUTE
86409+ struct task_struct *p = current;
86410+ kuid_t uid = GLOBAL_ROOT_UID;
86411+ int daemon = 0;
86412+
86413+ if (!grsec_enable_brute)
86414+ return;
86415+
86416+ rcu_read_lock();
86417+ read_lock(&tasklist_lock);
86418+ read_lock(&grsec_exec_file_lock);
86419+ if (p->real_parent && gr_is_same_file(p->real_parent->exec_file, p->exec_file)) {
86420+ p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
86421+ p->real_parent->brute = 1;
86422+ daemon = 1;
86423+ } else {
86424+ const struct cred *cred = __task_cred(p), *cred2;
86425+ struct task_struct *tsk, *tsk2;
86426+
86427+ if (dumpable != SUID_DUMP_USER && gr_is_global_nonroot(cred->uid)) {
86428+ struct user_struct *user;
86429+
86430+ uid = cred->uid;
86431+
86432+ /* this is put upon execution past expiration */
86433+ user = find_user(uid);
86434+ if (user == NULL)
86435+ goto unlock;
86436+ user->suid_banned = 1;
86437+ user->suid_ban_expires = get_seconds() + GR_USER_BAN_TIME;
86438+ if (user->suid_ban_expires == ~0UL)
86439+ user->suid_ban_expires--;
86440+
86441+ /* only kill other threads of the same binary, from the same user */
86442+ do_each_thread(tsk2, tsk) {
86443+ cred2 = __task_cred(tsk);
86444+ if (tsk != p && uid_eq(cred2->uid, uid) && gr_is_same_file(tsk->exec_file, p->exec_file))
86445+ gr_fake_force_sig(SIGKILL, tsk);
86446+ } while_each_thread(tsk2, tsk);
86447+ }
86448+ }
86449+unlock:
86450+ read_unlock(&grsec_exec_file_lock);
86451+ read_unlock(&tasklist_lock);
86452+ rcu_read_unlock();
86453+
86454+ if (gr_is_global_nonroot(uid))
86455+ 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);
86456+ else if (daemon)
86457+ gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
86458+
86459+#endif
86460+ return;
86461+}
86462+
86463+void gr_handle_brute_check(void)
86464+{
86465+#ifdef CONFIG_GRKERNSEC_BRUTE
86466+ struct task_struct *p = current;
86467+
86468+ if (unlikely(p->brute)) {
86469+ if (!grsec_enable_brute)
86470+ p->brute = 0;
86471+ else if (time_before(get_seconds(), p->brute_expires))
86472+ msleep(30 * 1000);
86473+ }
86474+#endif
86475+ return;
86476+}
86477+
86478+void gr_handle_kernel_exploit(void)
86479+{
86480+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86481+ const struct cred *cred;
86482+ struct task_struct *tsk, *tsk2;
86483+ struct user_struct *user;
86484+ kuid_t uid;
86485+
86486+ if (in_irq() || in_serving_softirq() || in_nmi())
86487+ panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
86488+
86489+ uid = current_uid();
86490+
86491+ if (gr_is_global_root(uid))
86492+ panic("grsec: halting the system due to suspicious kernel crash caused by root");
86493+ else {
86494+ /* kill all the processes of this user, hold a reference
86495+ to their creds struct, and prevent them from creating
86496+ another process until system reset
86497+ */
86498+ printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
86499+ GR_GLOBAL_UID(uid));
86500+ /* we intentionally leak this ref */
86501+ user = get_uid(current->cred->user);
86502+ if (user)
86503+ user->kernel_banned = 1;
86504+
86505+ /* kill all processes of this user */
86506+ read_lock(&tasklist_lock);
86507+ do_each_thread(tsk2, tsk) {
86508+ cred = __task_cred(tsk);
86509+ if (uid_eq(cred->uid, uid))
86510+ gr_fake_force_sig(SIGKILL, tsk);
86511+ } while_each_thread(tsk2, tsk);
86512+ read_unlock(&tasklist_lock);
86513+ }
86514+#endif
86515+}
86516+
86517+#ifdef CONFIG_GRKERNSEC_BRUTE
86518+static bool suid_ban_expired(struct user_struct *user)
86519+{
86520+ if (user->suid_ban_expires != ~0UL && time_after_eq(get_seconds(), user->suid_ban_expires)) {
86521+ user->suid_banned = 0;
86522+ user->suid_ban_expires = 0;
86523+ free_uid(user);
86524+ return true;
86525+ }
86526+
86527+ return false;
86528+}
86529+#endif
86530+
86531+int gr_process_kernel_exec_ban(void)
86532+{
86533+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86534+ if (unlikely(current->cred->user->kernel_banned))
86535+ return -EPERM;
86536+#endif
86537+ return 0;
86538+}
86539+
86540+int gr_process_kernel_setuid_ban(struct user_struct *user)
86541+{
86542+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86543+ if (unlikely(user->kernel_banned))
86544+ gr_fake_force_sig(SIGKILL, current);
86545+#endif
86546+ return 0;
86547+}
86548+
86549+int gr_process_suid_exec_ban(const struct linux_binprm *bprm)
86550+{
86551+#ifdef CONFIG_GRKERNSEC_BRUTE
86552+ struct user_struct *user = current->cred->user;
86553+ if (unlikely(user->suid_banned)) {
86554+ if (suid_ban_expired(user))
86555+ return 0;
86556+ /* disallow execution of suid binaries only */
86557+ else if (!uid_eq(bprm->cred->euid, current->cred->uid))
86558+ return -EPERM;
86559+ }
86560+#endif
86561+ return 0;
86562+}
86563diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
86564new file mode 100644
86565index 0000000..a523bd2
86566--- /dev/null
86567+++ b/grsecurity/grsec_sock.c
86568@@ -0,0 +1,244 @@
86569+#include <linux/kernel.h>
86570+#include <linux/module.h>
86571+#include <linux/sched.h>
86572+#include <linux/file.h>
86573+#include <linux/net.h>
86574+#include <linux/in.h>
86575+#include <linux/ip.h>
86576+#include <net/sock.h>
86577+#include <net/inet_sock.h>
86578+#include <linux/grsecurity.h>
86579+#include <linux/grinternal.h>
86580+#include <linux/gracl.h>
86581+
86582+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
86583+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
86584+
86585+EXPORT_SYMBOL_GPL(gr_search_udp_recvmsg);
86586+EXPORT_SYMBOL_GPL(gr_search_udp_sendmsg);
86587+
86588+#ifdef CONFIG_UNIX_MODULE
86589+EXPORT_SYMBOL_GPL(gr_acl_handle_unix);
86590+EXPORT_SYMBOL_GPL(gr_acl_handle_mknod);
86591+EXPORT_SYMBOL_GPL(gr_handle_chroot_unix);
86592+EXPORT_SYMBOL_GPL(gr_handle_create);
86593+#endif
86594+
86595+#ifdef CONFIG_GRKERNSEC
86596+#define gr_conn_table_size 32749
86597+struct conn_table_entry {
86598+ struct conn_table_entry *next;
86599+ struct signal_struct *sig;
86600+};
86601+
86602+struct conn_table_entry *gr_conn_table[gr_conn_table_size];
86603+DEFINE_SPINLOCK(gr_conn_table_lock);
86604+
86605+extern const char * gr_socktype_to_name(unsigned char type);
86606+extern const char * gr_proto_to_name(unsigned char proto);
86607+extern const char * gr_sockfamily_to_name(unsigned char family);
86608+
86609+static int
86610+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
86611+{
86612+ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
86613+}
86614+
86615+static int
86616+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
86617+ __u16 sport, __u16 dport)
86618+{
86619+ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
86620+ sig->gr_sport == sport && sig->gr_dport == dport))
86621+ return 1;
86622+ else
86623+ return 0;
86624+}
86625+
86626+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
86627+{
86628+ struct conn_table_entry **match;
86629+ unsigned int index;
86630+
86631+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
86632+ sig->gr_sport, sig->gr_dport,
86633+ gr_conn_table_size);
86634+
86635+ newent->sig = sig;
86636+
86637+ match = &gr_conn_table[index];
86638+ newent->next = *match;
86639+ *match = newent;
86640+
86641+ return;
86642+}
86643+
86644+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
86645+{
86646+ struct conn_table_entry *match, *last = NULL;
86647+ unsigned int index;
86648+
86649+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
86650+ sig->gr_sport, sig->gr_dport,
86651+ gr_conn_table_size);
86652+
86653+ match = gr_conn_table[index];
86654+ while (match && !conn_match(match->sig,
86655+ sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
86656+ sig->gr_dport)) {
86657+ last = match;
86658+ match = match->next;
86659+ }
86660+
86661+ if (match) {
86662+ if (last)
86663+ last->next = match->next;
86664+ else
86665+ gr_conn_table[index] = NULL;
86666+ kfree(match);
86667+ }
86668+
86669+ return;
86670+}
86671+
86672+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
86673+ __u16 sport, __u16 dport)
86674+{
86675+ struct conn_table_entry *match;
86676+ unsigned int index;
86677+
86678+ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
86679+
86680+ match = gr_conn_table[index];
86681+ while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
86682+ match = match->next;
86683+
86684+ if (match)
86685+ return match->sig;
86686+ else
86687+ return NULL;
86688+}
86689+
86690+#endif
86691+
86692+void gr_update_task_in_ip_table(const struct inet_sock *inet)
86693+{
86694+#ifdef CONFIG_GRKERNSEC
86695+ struct signal_struct *sig = current->signal;
86696+ struct conn_table_entry *newent;
86697+
86698+ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
86699+ if (newent == NULL)
86700+ return;
86701+ /* no bh lock needed since we are called with bh disabled */
86702+ spin_lock(&gr_conn_table_lock);
86703+ gr_del_task_from_ip_table_nolock(sig);
86704+ sig->gr_saddr = inet->inet_rcv_saddr;
86705+ sig->gr_daddr = inet->inet_daddr;
86706+ sig->gr_sport = inet->inet_sport;
86707+ sig->gr_dport = inet->inet_dport;
86708+ gr_add_to_task_ip_table_nolock(sig, newent);
86709+ spin_unlock(&gr_conn_table_lock);
86710+#endif
86711+ return;
86712+}
86713+
86714+void gr_del_task_from_ip_table(struct task_struct *task)
86715+{
86716+#ifdef CONFIG_GRKERNSEC
86717+ spin_lock_bh(&gr_conn_table_lock);
86718+ gr_del_task_from_ip_table_nolock(task->signal);
86719+ spin_unlock_bh(&gr_conn_table_lock);
86720+#endif
86721+ return;
86722+}
86723+
86724+void
86725+gr_attach_curr_ip(const struct sock *sk)
86726+{
86727+#ifdef CONFIG_GRKERNSEC
86728+ struct signal_struct *p, *set;
86729+ const struct inet_sock *inet = inet_sk(sk);
86730+
86731+ if (unlikely(sk->sk_protocol != IPPROTO_TCP))
86732+ return;
86733+
86734+ set = current->signal;
86735+
86736+ spin_lock_bh(&gr_conn_table_lock);
86737+ p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
86738+ inet->inet_dport, inet->inet_sport);
86739+ if (unlikely(p != NULL)) {
86740+ set->curr_ip = p->curr_ip;
86741+ set->used_accept = 1;
86742+ gr_del_task_from_ip_table_nolock(p);
86743+ spin_unlock_bh(&gr_conn_table_lock);
86744+ return;
86745+ }
86746+ spin_unlock_bh(&gr_conn_table_lock);
86747+
86748+ set->curr_ip = inet->inet_daddr;
86749+ set->used_accept = 1;
86750+#endif
86751+ return;
86752+}
86753+
86754+int
86755+gr_handle_sock_all(const int family, const int type, const int protocol)
86756+{
86757+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
86758+ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
86759+ (family != AF_UNIX)) {
86760+ if (family == AF_INET)
86761+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
86762+ else
86763+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
86764+ return -EACCES;
86765+ }
86766+#endif
86767+ return 0;
86768+}
86769+
86770+int
86771+gr_handle_sock_server(const struct sockaddr *sck)
86772+{
86773+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
86774+ if (grsec_enable_socket_server &&
86775+ in_group_p(grsec_socket_server_gid) &&
86776+ sck && (sck->sa_family != AF_UNIX) &&
86777+ (sck->sa_family != AF_LOCAL)) {
86778+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
86779+ return -EACCES;
86780+ }
86781+#endif
86782+ return 0;
86783+}
86784+
86785+int
86786+gr_handle_sock_server_other(const struct sock *sck)
86787+{
86788+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
86789+ if (grsec_enable_socket_server &&
86790+ in_group_p(grsec_socket_server_gid) &&
86791+ sck && (sck->sk_family != AF_UNIX) &&
86792+ (sck->sk_family != AF_LOCAL)) {
86793+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
86794+ return -EACCES;
86795+ }
86796+#endif
86797+ return 0;
86798+}
86799+
86800+int
86801+gr_handle_sock_client(const struct sockaddr *sck)
86802+{
86803+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
86804+ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
86805+ sck && (sck->sa_family != AF_UNIX) &&
86806+ (sck->sa_family != AF_LOCAL)) {
86807+ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
86808+ return -EACCES;
86809+ }
86810+#endif
86811+ return 0;
86812+}
86813diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
86814new file mode 100644
86815index 0000000..cce889e
86816--- /dev/null
86817+++ b/grsecurity/grsec_sysctl.c
86818@@ -0,0 +1,488 @@
86819+#include <linux/kernel.h>
86820+#include <linux/sched.h>
86821+#include <linux/sysctl.h>
86822+#include <linux/grsecurity.h>
86823+#include <linux/grinternal.h>
86824+
86825+int
86826+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
86827+{
86828+#ifdef CONFIG_GRKERNSEC_SYSCTL
86829+ if (dirname == NULL || name == NULL)
86830+ return 0;
86831+ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
86832+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
86833+ return -EACCES;
86834+ }
86835+#endif
86836+ return 0;
86837+}
86838+
86839+#if defined(CONFIG_GRKERNSEC_ROFS) || defined(CONFIG_GRKERNSEC_DENYUSB)
86840+static int __maybe_unused __read_only one = 1;
86841+#endif
86842+
86843+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) || \
86844+ defined(CONFIG_GRKERNSEC_DENYUSB)
86845+struct ctl_table grsecurity_table[] = {
86846+#ifdef CONFIG_GRKERNSEC_SYSCTL
86847+#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
86848+#ifdef CONFIG_GRKERNSEC_IO
86849+ {
86850+ .procname = "disable_priv_io",
86851+ .data = &grsec_disable_privio,
86852+ .maxlen = sizeof(int),
86853+ .mode = 0600,
86854+ .proc_handler = &proc_dointvec,
86855+ },
86856+#endif
86857+#endif
86858+#ifdef CONFIG_GRKERNSEC_LINK
86859+ {
86860+ .procname = "linking_restrictions",
86861+ .data = &grsec_enable_link,
86862+ .maxlen = sizeof(int),
86863+ .mode = 0600,
86864+ .proc_handler = &proc_dointvec,
86865+ },
86866+#endif
86867+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
86868+ {
86869+ .procname = "enforce_symlinksifowner",
86870+ .data = &grsec_enable_symlinkown,
86871+ .maxlen = sizeof(int),
86872+ .mode = 0600,
86873+ .proc_handler = &proc_dointvec,
86874+ },
86875+ {
86876+ .procname = "symlinkown_gid",
86877+ .data = &grsec_symlinkown_gid,
86878+ .maxlen = sizeof(int),
86879+ .mode = 0600,
86880+ .proc_handler = &proc_dointvec,
86881+ },
86882+#endif
86883+#ifdef CONFIG_GRKERNSEC_BRUTE
86884+ {
86885+ .procname = "deter_bruteforce",
86886+ .data = &grsec_enable_brute,
86887+ .maxlen = sizeof(int),
86888+ .mode = 0600,
86889+ .proc_handler = &proc_dointvec,
86890+ },
86891+#endif
86892+#ifdef CONFIG_GRKERNSEC_FIFO
86893+ {
86894+ .procname = "fifo_restrictions",
86895+ .data = &grsec_enable_fifo,
86896+ .maxlen = sizeof(int),
86897+ .mode = 0600,
86898+ .proc_handler = &proc_dointvec,
86899+ },
86900+#endif
86901+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
86902+ {
86903+ .procname = "ptrace_readexec",
86904+ .data = &grsec_enable_ptrace_readexec,
86905+ .maxlen = sizeof(int),
86906+ .mode = 0600,
86907+ .proc_handler = &proc_dointvec,
86908+ },
86909+#endif
86910+#ifdef CONFIG_GRKERNSEC_SETXID
86911+ {
86912+ .procname = "consistent_setxid",
86913+ .data = &grsec_enable_setxid,
86914+ .maxlen = sizeof(int),
86915+ .mode = 0600,
86916+ .proc_handler = &proc_dointvec,
86917+ },
86918+#endif
86919+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
86920+ {
86921+ .procname = "ip_blackhole",
86922+ .data = &grsec_enable_blackhole,
86923+ .maxlen = sizeof(int),
86924+ .mode = 0600,
86925+ .proc_handler = &proc_dointvec,
86926+ },
86927+ {
86928+ .procname = "lastack_retries",
86929+ .data = &grsec_lastack_retries,
86930+ .maxlen = sizeof(int),
86931+ .mode = 0600,
86932+ .proc_handler = &proc_dointvec,
86933+ },
86934+#endif
86935+#ifdef CONFIG_GRKERNSEC_EXECLOG
86936+ {
86937+ .procname = "exec_logging",
86938+ .data = &grsec_enable_execlog,
86939+ .maxlen = sizeof(int),
86940+ .mode = 0600,
86941+ .proc_handler = &proc_dointvec,
86942+ },
86943+#endif
86944+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86945+ {
86946+ .procname = "rwxmap_logging",
86947+ .data = &grsec_enable_log_rwxmaps,
86948+ .maxlen = sizeof(int),
86949+ .mode = 0600,
86950+ .proc_handler = &proc_dointvec,
86951+ },
86952+#endif
86953+#ifdef CONFIG_GRKERNSEC_SIGNAL
86954+ {
86955+ .procname = "signal_logging",
86956+ .data = &grsec_enable_signal,
86957+ .maxlen = sizeof(int),
86958+ .mode = 0600,
86959+ .proc_handler = &proc_dointvec,
86960+ },
86961+#endif
86962+#ifdef CONFIG_GRKERNSEC_FORKFAIL
86963+ {
86964+ .procname = "forkfail_logging",
86965+ .data = &grsec_enable_forkfail,
86966+ .maxlen = sizeof(int),
86967+ .mode = 0600,
86968+ .proc_handler = &proc_dointvec,
86969+ },
86970+#endif
86971+#ifdef CONFIG_GRKERNSEC_TIME
86972+ {
86973+ .procname = "timechange_logging",
86974+ .data = &grsec_enable_time,
86975+ .maxlen = sizeof(int),
86976+ .mode = 0600,
86977+ .proc_handler = &proc_dointvec,
86978+ },
86979+#endif
86980+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
86981+ {
86982+ .procname = "chroot_deny_shmat",
86983+ .data = &grsec_enable_chroot_shmat,
86984+ .maxlen = sizeof(int),
86985+ .mode = 0600,
86986+ .proc_handler = &proc_dointvec,
86987+ },
86988+#endif
86989+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
86990+ {
86991+ .procname = "chroot_deny_unix",
86992+ .data = &grsec_enable_chroot_unix,
86993+ .maxlen = sizeof(int),
86994+ .mode = 0600,
86995+ .proc_handler = &proc_dointvec,
86996+ },
86997+#endif
86998+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
86999+ {
87000+ .procname = "chroot_deny_mount",
87001+ .data = &grsec_enable_chroot_mount,
87002+ .maxlen = sizeof(int),
87003+ .mode = 0600,
87004+ .proc_handler = &proc_dointvec,
87005+ },
87006+#endif
87007+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
87008+ {
87009+ .procname = "chroot_deny_fchdir",
87010+ .data = &grsec_enable_chroot_fchdir,
87011+ .maxlen = sizeof(int),
87012+ .mode = 0600,
87013+ .proc_handler = &proc_dointvec,
87014+ },
87015+#endif
87016+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
87017+ {
87018+ .procname = "chroot_deny_chroot",
87019+ .data = &grsec_enable_chroot_double,
87020+ .maxlen = sizeof(int),
87021+ .mode = 0600,
87022+ .proc_handler = &proc_dointvec,
87023+ },
87024+#endif
87025+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
87026+ {
87027+ .procname = "chroot_deny_pivot",
87028+ .data = &grsec_enable_chroot_pivot,
87029+ .maxlen = sizeof(int),
87030+ .mode = 0600,
87031+ .proc_handler = &proc_dointvec,
87032+ },
87033+#endif
87034+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
87035+ {
87036+ .procname = "chroot_enforce_chdir",
87037+ .data = &grsec_enable_chroot_chdir,
87038+ .maxlen = sizeof(int),
87039+ .mode = 0600,
87040+ .proc_handler = &proc_dointvec,
87041+ },
87042+#endif
87043+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
87044+ {
87045+ .procname = "chroot_deny_chmod",
87046+ .data = &grsec_enable_chroot_chmod,
87047+ .maxlen = sizeof(int),
87048+ .mode = 0600,
87049+ .proc_handler = &proc_dointvec,
87050+ },
87051+#endif
87052+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
87053+ {
87054+ .procname = "chroot_deny_mknod",
87055+ .data = &grsec_enable_chroot_mknod,
87056+ .maxlen = sizeof(int),
87057+ .mode = 0600,
87058+ .proc_handler = &proc_dointvec,
87059+ },
87060+#endif
87061+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
87062+ {
87063+ .procname = "chroot_restrict_nice",
87064+ .data = &grsec_enable_chroot_nice,
87065+ .maxlen = sizeof(int),
87066+ .mode = 0600,
87067+ .proc_handler = &proc_dointvec,
87068+ },
87069+#endif
87070+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
87071+ {
87072+ .procname = "chroot_execlog",
87073+ .data = &grsec_enable_chroot_execlog,
87074+ .maxlen = sizeof(int),
87075+ .mode = 0600,
87076+ .proc_handler = &proc_dointvec,
87077+ },
87078+#endif
87079+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
87080+ {
87081+ .procname = "chroot_caps",
87082+ .data = &grsec_enable_chroot_caps,
87083+ .maxlen = sizeof(int),
87084+ .mode = 0600,
87085+ .proc_handler = &proc_dointvec,
87086+ },
87087+#endif
87088+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
87089+ {
87090+ .procname = "chroot_deny_bad_rename",
87091+ .data = &grsec_enable_chroot_rename,
87092+ .maxlen = sizeof(int),
87093+ .mode = 0600,
87094+ .proc_handler = &proc_dointvec,
87095+ },
87096+#endif
87097+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
87098+ {
87099+ .procname = "chroot_deny_sysctl",
87100+ .data = &grsec_enable_chroot_sysctl,
87101+ .maxlen = sizeof(int),
87102+ .mode = 0600,
87103+ .proc_handler = &proc_dointvec,
87104+ },
87105+#endif
87106+#ifdef CONFIG_GRKERNSEC_TPE
87107+ {
87108+ .procname = "tpe",
87109+ .data = &grsec_enable_tpe,
87110+ .maxlen = sizeof(int),
87111+ .mode = 0600,
87112+ .proc_handler = &proc_dointvec,
87113+ },
87114+ {
87115+ .procname = "tpe_gid",
87116+ .data = &grsec_tpe_gid,
87117+ .maxlen = sizeof(int),
87118+ .mode = 0600,
87119+ .proc_handler = &proc_dointvec,
87120+ },
87121+#endif
87122+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
87123+ {
87124+ .procname = "tpe_invert",
87125+ .data = &grsec_enable_tpe_invert,
87126+ .maxlen = sizeof(int),
87127+ .mode = 0600,
87128+ .proc_handler = &proc_dointvec,
87129+ },
87130+#endif
87131+#ifdef CONFIG_GRKERNSEC_TPE_ALL
87132+ {
87133+ .procname = "tpe_restrict_all",
87134+ .data = &grsec_enable_tpe_all,
87135+ .maxlen = sizeof(int),
87136+ .mode = 0600,
87137+ .proc_handler = &proc_dointvec,
87138+ },
87139+#endif
87140+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
87141+ {
87142+ .procname = "socket_all",
87143+ .data = &grsec_enable_socket_all,
87144+ .maxlen = sizeof(int),
87145+ .mode = 0600,
87146+ .proc_handler = &proc_dointvec,
87147+ },
87148+ {
87149+ .procname = "socket_all_gid",
87150+ .data = &grsec_socket_all_gid,
87151+ .maxlen = sizeof(int),
87152+ .mode = 0600,
87153+ .proc_handler = &proc_dointvec,
87154+ },
87155+#endif
87156+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
87157+ {
87158+ .procname = "socket_client",
87159+ .data = &grsec_enable_socket_client,
87160+ .maxlen = sizeof(int),
87161+ .mode = 0600,
87162+ .proc_handler = &proc_dointvec,
87163+ },
87164+ {
87165+ .procname = "socket_client_gid",
87166+ .data = &grsec_socket_client_gid,
87167+ .maxlen = sizeof(int),
87168+ .mode = 0600,
87169+ .proc_handler = &proc_dointvec,
87170+ },
87171+#endif
87172+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
87173+ {
87174+ .procname = "socket_server",
87175+ .data = &grsec_enable_socket_server,
87176+ .maxlen = sizeof(int),
87177+ .mode = 0600,
87178+ .proc_handler = &proc_dointvec,
87179+ },
87180+ {
87181+ .procname = "socket_server_gid",
87182+ .data = &grsec_socket_server_gid,
87183+ .maxlen = sizeof(int),
87184+ .mode = 0600,
87185+ .proc_handler = &proc_dointvec,
87186+ },
87187+#endif
87188+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
87189+ {
87190+ .procname = "audit_group",
87191+ .data = &grsec_enable_group,
87192+ .maxlen = sizeof(int),
87193+ .mode = 0600,
87194+ .proc_handler = &proc_dointvec,
87195+ },
87196+ {
87197+ .procname = "audit_gid",
87198+ .data = &grsec_audit_gid,
87199+ .maxlen = sizeof(int),
87200+ .mode = 0600,
87201+ .proc_handler = &proc_dointvec,
87202+ },
87203+#endif
87204+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
87205+ {
87206+ .procname = "audit_chdir",
87207+ .data = &grsec_enable_chdir,
87208+ .maxlen = sizeof(int),
87209+ .mode = 0600,
87210+ .proc_handler = &proc_dointvec,
87211+ },
87212+#endif
87213+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
87214+ {
87215+ .procname = "audit_mount",
87216+ .data = &grsec_enable_mount,
87217+ .maxlen = sizeof(int),
87218+ .mode = 0600,
87219+ .proc_handler = &proc_dointvec,
87220+ },
87221+#endif
87222+#ifdef CONFIG_GRKERNSEC_DMESG
87223+ {
87224+ .procname = "dmesg",
87225+ .data = &grsec_enable_dmesg,
87226+ .maxlen = sizeof(int),
87227+ .mode = 0600,
87228+ .proc_handler = &proc_dointvec,
87229+ },
87230+#endif
87231+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
87232+ {
87233+ .procname = "chroot_findtask",
87234+ .data = &grsec_enable_chroot_findtask,
87235+ .maxlen = sizeof(int),
87236+ .mode = 0600,
87237+ .proc_handler = &proc_dointvec,
87238+ },
87239+#endif
87240+#ifdef CONFIG_GRKERNSEC_RESLOG
87241+ {
87242+ .procname = "resource_logging",
87243+ .data = &grsec_resource_logging,
87244+ .maxlen = sizeof(int),
87245+ .mode = 0600,
87246+ .proc_handler = &proc_dointvec,
87247+ },
87248+#endif
87249+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
87250+ {
87251+ .procname = "audit_ptrace",
87252+ .data = &grsec_enable_audit_ptrace,
87253+ .maxlen = sizeof(int),
87254+ .mode = 0600,
87255+ .proc_handler = &proc_dointvec,
87256+ },
87257+#endif
87258+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
87259+ {
87260+ .procname = "harden_ptrace",
87261+ .data = &grsec_enable_harden_ptrace,
87262+ .maxlen = sizeof(int),
87263+ .mode = 0600,
87264+ .proc_handler = &proc_dointvec,
87265+ },
87266+#endif
87267+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
87268+ {
87269+ .procname = "harden_ipc",
87270+ .data = &grsec_enable_harden_ipc,
87271+ .maxlen = sizeof(int),
87272+ .mode = 0600,
87273+ .proc_handler = &proc_dointvec,
87274+ },
87275+#endif
87276+ {
87277+ .procname = "grsec_lock",
87278+ .data = &grsec_lock,
87279+ .maxlen = sizeof(int),
87280+ .mode = 0600,
87281+ .proc_handler = &proc_dointvec,
87282+ },
87283+#endif
87284+#ifdef CONFIG_GRKERNSEC_ROFS
87285+ {
87286+ .procname = "romount_protect",
87287+ .data = &grsec_enable_rofs,
87288+ .maxlen = sizeof(int),
87289+ .mode = 0600,
87290+ .proc_handler = &proc_dointvec_minmax,
87291+ .extra1 = &one,
87292+ .extra2 = &one,
87293+ },
87294+#endif
87295+#if defined(CONFIG_GRKERNSEC_DENYUSB) && !defined(CONFIG_GRKERNSEC_DENYUSB_FORCE)
87296+ {
87297+ .procname = "deny_new_usb",
87298+ .data = &grsec_deny_new_usb,
87299+ .maxlen = sizeof(int),
87300+ .mode = 0600,
87301+ .proc_handler = &proc_dointvec,
87302+ },
87303+#endif
87304+ { }
87305+};
87306+#endif
87307diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
87308new file mode 100644
87309index 0000000..61b514e
87310--- /dev/null
87311+++ b/grsecurity/grsec_time.c
87312@@ -0,0 +1,16 @@
87313+#include <linux/kernel.h>
87314+#include <linux/sched.h>
87315+#include <linux/grinternal.h>
87316+#include <linux/module.h>
87317+
87318+void
87319+gr_log_timechange(void)
87320+{
87321+#ifdef CONFIG_GRKERNSEC_TIME
87322+ if (grsec_enable_time)
87323+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
87324+#endif
87325+ return;
87326+}
87327+
87328+EXPORT_SYMBOL_GPL(gr_log_timechange);
87329diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
87330new file mode 100644
87331index 0000000..d1953de
87332--- /dev/null
87333+++ b/grsecurity/grsec_tpe.c
87334@@ -0,0 +1,78 @@
87335+#include <linux/kernel.h>
87336+#include <linux/sched.h>
87337+#include <linux/file.h>
87338+#include <linux/fs.h>
87339+#include <linux/grinternal.h>
87340+
87341+extern int gr_acl_tpe_check(void);
87342+
87343+int
87344+gr_tpe_allow(const struct file *file)
87345+{
87346+#ifdef CONFIG_GRKERNSEC
87347+ struct inode *inode = file->f_path.dentry->d_parent->d_inode;
87348+ struct inode *file_inode = file->f_path.dentry->d_inode;
87349+ const struct cred *cred = current_cred();
87350+ char *msg = NULL;
87351+ char *msg2 = NULL;
87352+
87353+ // never restrict root
87354+ if (gr_is_global_root(cred->uid))
87355+ return 1;
87356+
87357+ if (grsec_enable_tpe) {
87358+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
87359+ if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
87360+ msg = "not being in trusted group";
87361+ else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
87362+ msg = "being in untrusted group";
87363+#else
87364+ if (in_group_p(grsec_tpe_gid))
87365+ msg = "being in untrusted group";
87366+#endif
87367+ }
87368+ if (!msg && gr_acl_tpe_check())
87369+ msg = "being in untrusted role";
87370+
87371+ // not in any affected group/role
87372+ if (!msg)
87373+ goto next_check;
87374+
87375+ if (gr_is_global_nonroot(inode->i_uid))
87376+ msg2 = "file in non-root-owned directory";
87377+ else if (inode->i_mode & S_IWOTH)
87378+ msg2 = "file in world-writable directory";
87379+ else if (inode->i_mode & S_IWGRP)
87380+ msg2 = "file in group-writable directory";
87381+ else if (file_inode->i_mode & S_IWOTH)
87382+ msg2 = "file is world-writable";
87383+
87384+ if (msg && msg2) {
87385+ char fullmsg[70] = {0};
87386+ snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
87387+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
87388+ return 0;
87389+ }
87390+ msg = NULL;
87391+next_check:
87392+#ifdef CONFIG_GRKERNSEC_TPE_ALL
87393+ if (!grsec_enable_tpe || !grsec_enable_tpe_all)
87394+ return 1;
87395+
87396+ if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
87397+ msg = "directory not owned by user";
87398+ else if (inode->i_mode & S_IWOTH)
87399+ msg = "file in world-writable directory";
87400+ else if (inode->i_mode & S_IWGRP)
87401+ msg = "file in group-writable directory";
87402+ else if (file_inode->i_mode & S_IWOTH)
87403+ msg = "file is world-writable";
87404+
87405+ if (msg) {
87406+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
87407+ return 0;
87408+ }
87409+#endif
87410+#endif
87411+ return 1;
87412+}
87413diff --git a/grsecurity/grsec_usb.c b/grsecurity/grsec_usb.c
87414new file mode 100644
87415index 0000000..ae02d8e
87416--- /dev/null
87417+++ b/grsecurity/grsec_usb.c
87418@@ -0,0 +1,15 @@
87419+#include <linux/kernel.h>
87420+#include <linux/grinternal.h>
87421+#include <linux/module.h>
87422+
87423+int gr_handle_new_usb(void)
87424+{
87425+#ifdef CONFIG_GRKERNSEC_DENYUSB
87426+ if (grsec_deny_new_usb) {
87427+ printk(KERN_ALERT "grsec: denied insert of new USB device\n");
87428+ return 1;
87429+ }
87430+#endif
87431+ return 0;
87432+}
87433+EXPORT_SYMBOL_GPL(gr_handle_new_usb);
87434diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
87435new file mode 100644
87436index 0000000..158b330
87437--- /dev/null
87438+++ b/grsecurity/grsum.c
87439@@ -0,0 +1,64 @@
87440+#include <linux/err.h>
87441+#include <linux/kernel.h>
87442+#include <linux/sched.h>
87443+#include <linux/mm.h>
87444+#include <linux/scatterlist.h>
87445+#include <linux/crypto.h>
87446+#include <linux/gracl.h>
87447+
87448+
87449+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
87450+#error "crypto and sha256 must be built into the kernel"
87451+#endif
87452+
87453+int
87454+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
87455+{
87456+ struct crypto_hash *tfm;
87457+ struct hash_desc desc;
87458+ struct scatterlist sg[2];
87459+ unsigned char temp_sum[GR_SHA_LEN] __attribute__((aligned(__alignof__(unsigned long))));
87460+ unsigned long *tmpsumptr = (unsigned long *)temp_sum;
87461+ unsigned long *sumptr = (unsigned long *)sum;
87462+ int cryptres;
87463+ int retval = 1;
87464+ volatile int mismatched = 0;
87465+ volatile int dummy = 0;
87466+ unsigned int i;
87467+
87468+ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
87469+ if (IS_ERR(tfm)) {
87470+ /* should never happen, since sha256 should be built in */
87471+ memset(entry->pw, 0, GR_PW_LEN);
87472+ return 1;
87473+ }
87474+
87475+ sg_init_table(sg, 2);
87476+ sg_set_buf(&sg[0], salt, GR_SALT_LEN);
87477+ sg_set_buf(&sg[1], entry->pw, strlen(entry->pw));
87478+
87479+ desc.tfm = tfm;
87480+ desc.flags = 0;
87481+
87482+ cryptres = crypto_hash_digest(&desc, sg, GR_SALT_LEN + strlen(entry->pw),
87483+ temp_sum);
87484+
87485+ memset(entry->pw, 0, GR_PW_LEN);
87486+
87487+ if (cryptres)
87488+ goto out;
87489+
87490+ for (i = 0; i < GR_SHA_LEN/sizeof(tmpsumptr[0]); i++)
87491+ if (sumptr[i] != tmpsumptr[i])
87492+ mismatched = 1;
87493+ else
87494+ dummy = 1; // waste a cycle
87495+
87496+ if (!mismatched)
87497+ retval = dummy - 1;
87498+
87499+out:
87500+ crypto_free_hash(tfm);
87501+
87502+ return retval;
87503+}
87504diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
87505index 5bdab6b..9ae82fe 100644
87506--- a/include/asm-generic/4level-fixup.h
87507+++ b/include/asm-generic/4level-fixup.h
87508@@ -14,8 +14,10 @@
87509 #define pmd_alloc(mm, pud, address) \
87510 ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
87511 NULL: pmd_offset(pud, address))
87512+#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
87513
87514 #define pud_alloc(mm, pgd, address) (pgd)
87515+#define pud_alloc_kernel(mm, pgd, address) pud_alloc((mm), (pgd), (address))
87516 #define pud_offset(pgd, start) (pgd)
87517 #define pud_none(pud) 0
87518 #define pud_bad(pud) 0
87519diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
87520index b7babf0..1e4b4f1 100644
87521--- a/include/asm-generic/atomic-long.h
87522+++ b/include/asm-generic/atomic-long.h
87523@@ -22,6 +22,12 @@
87524
87525 typedef atomic64_t atomic_long_t;
87526
87527+#ifdef CONFIG_PAX_REFCOUNT
87528+typedef atomic64_unchecked_t atomic_long_unchecked_t;
87529+#else
87530+typedef atomic64_t atomic_long_unchecked_t;
87531+#endif
87532+
87533 #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i)
87534
87535 static inline long atomic_long_read(atomic_long_t *l)
87536@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
87537 return (long)atomic64_read(v);
87538 }
87539
87540+#ifdef CONFIG_PAX_REFCOUNT
87541+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
87542+{
87543+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87544+
87545+ return (long)atomic64_read_unchecked(v);
87546+}
87547+#endif
87548+
87549 static inline void atomic_long_set(atomic_long_t *l, long i)
87550 {
87551 atomic64_t *v = (atomic64_t *)l;
87552@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
87553 atomic64_set(v, i);
87554 }
87555
87556+#ifdef CONFIG_PAX_REFCOUNT
87557+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
87558+{
87559+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87560+
87561+ atomic64_set_unchecked(v, i);
87562+}
87563+#endif
87564+
87565 static inline void atomic_long_inc(atomic_long_t *l)
87566 {
87567 atomic64_t *v = (atomic64_t *)l;
87568@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
87569 atomic64_inc(v);
87570 }
87571
87572+#ifdef CONFIG_PAX_REFCOUNT
87573+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
87574+{
87575+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87576+
87577+ atomic64_inc_unchecked(v);
87578+}
87579+#endif
87580+
87581 static inline void atomic_long_dec(atomic_long_t *l)
87582 {
87583 atomic64_t *v = (atomic64_t *)l;
87584@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
87585 atomic64_dec(v);
87586 }
87587
87588+#ifdef CONFIG_PAX_REFCOUNT
87589+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
87590+{
87591+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87592+
87593+ atomic64_dec_unchecked(v);
87594+}
87595+#endif
87596+
87597 static inline void atomic_long_add(long i, atomic_long_t *l)
87598 {
87599 atomic64_t *v = (atomic64_t *)l;
87600@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
87601 atomic64_add(i, v);
87602 }
87603
87604+#ifdef CONFIG_PAX_REFCOUNT
87605+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
87606+{
87607+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87608+
87609+ atomic64_add_unchecked(i, v);
87610+}
87611+#endif
87612+
87613 static inline void atomic_long_sub(long i, atomic_long_t *l)
87614 {
87615 atomic64_t *v = (atomic64_t *)l;
87616@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
87617 atomic64_sub(i, v);
87618 }
87619
87620+#ifdef CONFIG_PAX_REFCOUNT
87621+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
87622+{
87623+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87624+
87625+ atomic64_sub_unchecked(i, v);
87626+}
87627+#endif
87628+
87629 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
87630 {
87631 atomic64_t *v = (atomic64_t *)l;
87632@@ -94,13 +154,22 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
87633 return atomic64_add_negative(i, v);
87634 }
87635
87636-static inline long atomic_long_add_return(long i, atomic_long_t *l)
87637+static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
87638 {
87639 atomic64_t *v = (atomic64_t *)l;
87640
87641 return (long)atomic64_add_return(i, v);
87642 }
87643
87644+#ifdef CONFIG_PAX_REFCOUNT
87645+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
87646+{
87647+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87648+
87649+ return (long)atomic64_add_return_unchecked(i, v);
87650+}
87651+#endif
87652+
87653 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
87654 {
87655 atomic64_t *v = (atomic64_t *)l;
87656@@ -115,6 +184,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
87657 return (long)atomic64_inc_return(v);
87658 }
87659
87660+#ifdef CONFIG_PAX_REFCOUNT
87661+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
87662+{
87663+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87664+
87665+ return (long)atomic64_inc_return_unchecked(v);
87666+}
87667+#endif
87668+
87669 static inline long atomic_long_dec_return(atomic_long_t *l)
87670 {
87671 atomic64_t *v = (atomic64_t *)l;
87672@@ -140,6 +218,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
87673
87674 typedef atomic_t atomic_long_t;
87675
87676+#ifdef CONFIG_PAX_REFCOUNT
87677+typedef atomic_unchecked_t atomic_long_unchecked_t;
87678+#else
87679+typedef atomic_t atomic_long_unchecked_t;
87680+#endif
87681+
87682 #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i)
87683 static inline long atomic_long_read(atomic_long_t *l)
87684 {
87685@@ -148,6 +232,15 @@ static inline long atomic_long_read(atomic_long_t *l)
87686 return (long)atomic_read(v);
87687 }
87688
87689+#ifdef CONFIG_PAX_REFCOUNT
87690+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
87691+{
87692+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87693+
87694+ return (long)atomic_read_unchecked(v);
87695+}
87696+#endif
87697+
87698 static inline void atomic_long_set(atomic_long_t *l, long i)
87699 {
87700 atomic_t *v = (atomic_t *)l;
87701@@ -155,6 +248,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
87702 atomic_set(v, i);
87703 }
87704
87705+#ifdef CONFIG_PAX_REFCOUNT
87706+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
87707+{
87708+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87709+
87710+ atomic_set_unchecked(v, i);
87711+}
87712+#endif
87713+
87714 static inline void atomic_long_inc(atomic_long_t *l)
87715 {
87716 atomic_t *v = (atomic_t *)l;
87717@@ -162,6 +264,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
87718 atomic_inc(v);
87719 }
87720
87721+#ifdef CONFIG_PAX_REFCOUNT
87722+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
87723+{
87724+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87725+
87726+ atomic_inc_unchecked(v);
87727+}
87728+#endif
87729+
87730 static inline void atomic_long_dec(atomic_long_t *l)
87731 {
87732 atomic_t *v = (atomic_t *)l;
87733@@ -169,6 +280,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
87734 atomic_dec(v);
87735 }
87736
87737+#ifdef CONFIG_PAX_REFCOUNT
87738+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
87739+{
87740+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87741+
87742+ atomic_dec_unchecked(v);
87743+}
87744+#endif
87745+
87746 static inline void atomic_long_add(long i, atomic_long_t *l)
87747 {
87748 atomic_t *v = (atomic_t *)l;
87749@@ -176,6 +296,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
87750 atomic_add(i, v);
87751 }
87752
87753+#ifdef CONFIG_PAX_REFCOUNT
87754+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
87755+{
87756+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87757+
87758+ atomic_add_unchecked(i, v);
87759+}
87760+#endif
87761+
87762 static inline void atomic_long_sub(long i, atomic_long_t *l)
87763 {
87764 atomic_t *v = (atomic_t *)l;
87765@@ -183,6 +312,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
87766 atomic_sub(i, v);
87767 }
87768
87769+#ifdef CONFIG_PAX_REFCOUNT
87770+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
87771+{
87772+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87773+
87774+ atomic_sub_unchecked(i, v);
87775+}
87776+#endif
87777+
87778 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
87779 {
87780 atomic_t *v = (atomic_t *)l;
87781@@ -211,13 +349,23 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
87782 return atomic_add_negative(i, v);
87783 }
87784
87785-static inline long atomic_long_add_return(long i, atomic_long_t *l)
87786+static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
87787 {
87788 atomic_t *v = (atomic_t *)l;
87789
87790 return (long)atomic_add_return(i, v);
87791 }
87792
87793+#ifdef CONFIG_PAX_REFCOUNT
87794+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
87795+{
87796+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87797+
87798+ return (long)atomic_add_return_unchecked(i, v);
87799+}
87800+
87801+#endif
87802+
87803 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
87804 {
87805 atomic_t *v = (atomic_t *)l;
87806@@ -232,6 +380,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
87807 return (long)atomic_inc_return(v);
87808 }
87809
87810+#ifdef CONFIG_PAX_REFCOUNT
87811+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
87812+{
87813+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87814+
87815+ return (long)atomic_inc_return_unchecked(v);
87816+}
87817+#endif
87818+
87819 static inline long atomic_long_dec_return(atomic_long_t *l)
87820 {
87821 atomic_t *v = (atomic_t *)l;
87822@@ -255,4 +412,57 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
87823
87824 #endif /* BITS_PER_LONG == 64 */
87825
87826+#ifdef CONFIG_PAX_REFCOUNT
87827+static inline void pax_refcount_needs_these_functions(void)
87828+{
87829+ atomic_read_unchecked((atomic_unchecked_t *)NULL);
87830+ atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
87831+ atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
87832+ atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
87833+ atomic_inc_unchecked((atomic_unchecked_t *)NULL);
87834+ (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
87835+ atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
87836+ atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
87837+ atomic_dec_unchecked((atomic_unchecked_t *)NULL);
87838+ atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
87839+ (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
87840+#ifdef CONFIG_X86
87841+ atomic_clear_mask_unchecked(0, NULL);
87842+ atomic_set_mask_unchecked(0, NULL);
87843+#endif
87844+
87845+ atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
87846+ atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
87847+ atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
87848+ atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
87849+ atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
87850+ atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
87851+ atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
87852+ atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
87853+}
87854+#else
87855+#define atomic_read_unchecked(v) atomic_read(v)
87856+#define atomic_set_unchecked(v, i) atomic_set((v), (i))
87857+#define atomic_add_unchecked(i, v) atomic_add((i), (v))
87858+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
87859+#define atomic_inc_unchecked(v) atomic_inc(v)
87860+#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
87861+#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
87862+#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
87863+#define atomic_dec_unchecked(v) atomic_dec(v)
87864+#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
87865+#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
87866+#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
87867+#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
87868+
87869+#define atomic_long_read_unchecked(v) atomic_long_read(v)
87870+#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
87871+#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
87872+#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
87873+#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
87874+#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
87875+#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
87876+#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
87877+#endif
87878+
87879 #endif /* _ASM_GENERIC_ATOMIC_LONG_H */
87880diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
87881index 30ad9c8..c70c170 100644
87882--- a/include/asm-generic/atomic64.h
87883+++ b/include/asm-generic/atomic64.h
87884@@ -16,6 +16,8 @@ typedef struct {
87885 long long counter;
87886 } atomic64_t;
87887
87888+typedef atomic64_t atomic64_unchecked_t;
87889+
87890 #define ATOMIC64_INIT(i) { (i) }
87891
87892 extern long long atomic64_read(const atomic64_t *v);
87893@@ -51,4 +53,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u);
87894 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
87895 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
87896
87897+#define atomic64_read_unchecked(v) atomic64_read(v)
87898+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
87899+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
87900+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
87901+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
87902+#define atomic64_inc_unchecked(v) atomic64_inc(v)
87903+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
87904+#define atomic64_dec_unchecked(v) atomic64_dec(v)
87905+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
87906+
87907 #endif /* _ASM_GENERIC_ATOMIC64_H */
87908diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
87909index f5c40b0..e902f9d 100644
87910--- a/include/asm-generic/barrier.h
87911+++ b/include/asm-generic/barrier.h
87912@@ -82,7 +82,7 @@
87913 do { \
87914 compiletime_assert_atomic_type(*p); \
87915 smp_mb(); \
87916- ACCESS_ONCE(*p) = (v); \
87917+ ACCESS_ONCE_RW(*p) = (v); \
87918 } while (0)
87919
87920 #define smp_load_acquire(p) \
87921diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
87922index a60a7cc..0fe12f2 100644
87923--- a/include/asm-generic/bitops/__fls.h
87924+++ b/include/asm-generic/bitops/__fls.h
87925@@ -9,7 +9,7 @@
87926 *
87927 * Undefined if no set bit exists, so code should check against 0 first.
87928 */
87929-static __always_inline unsigned long __fls(unsigned long word)
87930+static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
87931 {
87932 int num = BITS_PER_LONG - 1;
87933
87934diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
87935index 0576d1f..dad6c71 100644
87936--- a/include/asm-generic/bitops/fls.h
87937+++ b/include/asm-generic/bitops/fls.h
87938@@ -9,7 +9,7 @@
87939 * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
87940 */
87941
87942-static __always_inline int fls(int x)
87943+static __always_inline int __intentional_overflow(-1) fls(int x)
87944 {
87945 int r = 32;
87946
87947diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
87948index b097cf8..3d40e14 100644
87949--- a/include/asm-generic/bitops/fls64.h
87950+++ b/include/asm-generic/bitops/fls64.h
87951@@ -15,7 +15,7 @@
87952 * at position 64.
87953 */
87954 #if BITS_PER_LONG == 32
87955-static __always_inline int fls64(__u64 x)
87956+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
87957 {
87958 __u32 h = x >> 32;
87959 if (h)
87960@@ -23,7 +23,7 @@ static __always_inline int fls64(__u64 x)
87961 return fls(x);
87962 }
87963 #elif BITS_PER_LONG == 64
87964-static __always_inline int fls64(__u64 x)
87965+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
87966 {
87967 if (x == 0)
87968 return 0;
87969diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
87970index 630dd23..8c1dcb6b 100644
87971--- a/include/asm-generic/bug.h
87972+++ b/include/asm-generic/bug.h
87973@@ -62,13 +62,13 @@ struct bug_entry {
87974 * to provide better diagnostics.
87975 */
87976 #ifndef __WARN_TAINT
87977-extern __printf(3, 4)
87978+extern __printf(3, 4) __nocapture(1, 3, 4)
87979 void warn_slowpath_fmt(const char *file, const int line,
87980 const char *fmt, ...);
87981-extern __printf(4, 5)
87982+extern __printf(4, 5) __nocapture(1, 4, 5)
87983 void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint,
87984 const char *fmt, ...);
87985-extern void warn_slowpath_null(const char *file, const int line);
87986+extern __nocapture(1) void warn_slowpath_null(const char *file, const int line);
87987 #define WANT_WARN_ON_SLOWPATH
87988 #define __WARN() warn_slowpath_null(__FILE__, __LINE__)
87989 #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg)
87990diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
87991index 1bfcfe5..e04c5c9 100644
87992--- a/include/asm-generic/cache.h
87993+++ b/include/asm-generic/cache.h
87994@@ -6,7 +6,7 @@
87995 * cache lines need to provide their own cache.h.
87996 */
87997
87998-#define L1_CACHE_SHIFT 5
87999-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
88000+#define L1_CACHE_SHIFT 5UL
88001+#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT)
88002
88003 #endif /* __ASM_GENERIC_CACHE_H */
88004diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
88005index 0d68a1e..b74a761 100644
88006--- a/include/asm-generic/emergency-restart.h
88007+++ b/include/asm-generic/emergency-restart.h
88008@@ -1,7 +1,7 @@
88009 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
88010 #define _ASM_GENERIC_EMERGENCY_RESTART_H
88011
88012-static inline void machine_emergency_restart(void)
88013+static inline __noreturn void machine_emergency_restart(void)
88014 {
88015 machine_restart(NULL);
88016 }
88017diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
88018index 90f99c7..00ce236 100644
88019--- a/include/asm-generic/kmap_types.h
88020+++ b/include/asm-generic/kmap_types.h
88021@@ -2,9 +2,9 @@
88022 #define _ASM_GENERIC_KMAP_TYPES_H
88023
88024 #ifdef __WITH_KM_FENCE
88025-# define KM_TYPE_NR 41
88026+# define KM_TYPE_NR 42
88027 #else
88028-# define KM_TYPE_NR 20
88029+# define KM_TYPE_NR 21
88030 #endif
88031
88032 #endif
88033diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
88034index 9ceb03b..62b0b8f 100644
88035--- a/include/asm-generic/local.h
88036+++ b/include/asm-generic/local.h
88037@@ -23,24 +23,37 @@ typedef struct
88038 atomic_long_t a;
88039 } local_t;
88040
88041+typedef struct {
88042+ atomic_long_unchecked_t a;
88043+} local_unchecked_t;
88044+
88045 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
88046
88047 #define local_read(l) atomic_long_read(&(l)->a)
88048+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
88049 #define local_set(l,i) atomic_long_set((&(l)->a),(i))
88050+#define local_set_unchecked(l,i) atomic_long_set_unchecked((&(l)->a),(i))
88051 #define local_inc(l) atomic_long_inc(&(l)->a)
88052+#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
88053 #define local_dec(l) atomic_long_dec(&(l)->a)
88054+#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
88055 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
88056+#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
88057 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
88058+#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
88059
88060 #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
88061 #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
88062 #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
88063 #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
88064 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
88065+#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
88066 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
88067 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
88068+#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
88069
88070 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
88071+#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
88072 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
88073 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
88074 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
88075diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
88076index 725612b..9cc513a 100644
88077--- a/include/asm-generic/pgtable-nopmd.h
88078+++ b/include/asm-generic/pgtable-nopmd.h
88079@@ -1,14 +1,19 @@
88080 #ifndef _PGTABLE_NOPMD_H
88081 #define _PGTABLE_NOPMD_H
88082
88083-#ifndef __ASSEMBLY__
88084-
88085 #include <asm-generic/pgtable-nopud.h>
88086
88087-struct mm_struct;
88088-
88089 #define __PAGETABLE_PMD_FOLDED
88090
88091+#define PMD_SHIFT PUD_SHIFT
88092+#define PTRS_PER_PMD 1
88093+#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT)
88094+#define PMD_MASK (~(PMD_SIZE-1))
88095+
88096+#ifndef __ASSEMBLY__
88097+
88098+struct mm_struct;
88099+
88100 /*
88101 * Having the pmd type consist of a pud gets the size right, and allows
88102 * us to conceptually access the pud entry that this pmd is folded into
88103@@ -16,11 +21,6 @@ struct mm_struct;
88104 */
88105 typedef struct { pud_t pud; } pmd_t;
88106
88107-#define PMD_SHIFT PUD_SHIFT
88108-#define PTRS_PER_PMD 1
88109-#define PMD_SIZE (1UL << PMD_SHIFT)
88110-#define PMD_MASK (~(PMD_SIZE-1))
88111-
88112 /*
88113 * The "pud_xxx()" functions here are trivial for a folded two-level
88114 * setup: the pmd is never bad, and a pmd always exists (as it's folded
88115diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
88116index 810431d..0ec4804f 100644
88117--- a/include/asm-generic/pgtable-nopud.h
88118+++ b/include/asm-generic/pgtable-nopud.h
88119@@ -1,10 +1,15 @@
88120 #ifndef _PGTABLE_NOPUD_H
88121 #define _PGTABLE_NOPUD_H
88122
88123-#ifndef __ASSEMBLY__
88124-
88125 #define __PAGETABLE_PUD_FOLDED
88126
88127+#define PUD_SHIFT PGDIR_SHIFT
88128+#define PTRS_PER_PUD 1
88129+#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT)
88130+#define PUD_MASK (~(PUD_SIZE-1))
88131+
88132+#ifndef __ASSEMBLY__
88133+
88134 /*
88135 * Having the pud type consist of a pgd gets the size right, and allows
88136 * us to conceptually access the pgd entry that this pud is folded into
88137@@ -12,11 +17,6 @@
88138 */
88139 typedef struct { pgd_t pgd; } pud_t;
88140
88141-#define PUD_SHIFT PGDIR_SHIFT
88142-#define PTRS_PER_PUD 1
88143-#define PUD_SIZE (1UL << PUD_SHIFT)
88144-#define PUD_MASK (~(PUD_SIZE-1))
88145-
88146 /*
88147 * The "pgd_xxx()" functions here are trivial for a folded two-level
88148 * setup: the pud is never bad, and a pud always exists (as it's folded
88149@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { }
88150 #define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
88151
88152 #define pgd_populate(mm, pgd, pud) do { } while (0)
88153+#define pgd_populate_kernel(mm, pgd, pud) do { } while (0)
88154 /*
88155 * (puds are folded into pgds so this doesn't get actually called,
88156 * but the define is needed for a generic inline function.)
88157diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
88158index 4d46085..f4e92ef 100644
88159--- a/include/asm-generic/pgtable.h
88160+++ b/include/asm-generic/pgtable.h
88161@@ -689,6 +689,22 @@ static inline int pmd_protnone(pmd_t pmd)
88162 }
88163 #endif /* CONFIG_NUMA_BALANCING */
88164
88165+#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
88166+#ifdef CONFIG_PAX_KERNEXEC
88167+#error KERNEXEC requires pax_open_kernel
88168+#else
88169+static inline unsigned long pax_open_kernel(void) { return 0; }
88170+#endif
88171+#endif
88172+
88173+#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
88174+#ifdef CONFIG_PAX_KERNEXEC
88175+#error KERNEXEC requires pax_close_kernel
88176+#else
88177+static inline unsigned long pax_close_kernel(void) { return 0; }
88178+#endif
88179+#endif
88180+
88181 #endif /* CONFIG_MMU */
88182
88183 #endif /* !__ASSEMBLY__ */
88184diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
88185index 72d8803..cb9749c 100644
88186--- a/include/asm-generic/uaccess.h
88187+++ b/include/asm-generic/uaccess.h
88188@@ -343,4 +343,20 @@ clear_user(void __user *to, unsigned long n)
88189 return __clear_user(to, n);
88190 }
88191
88192+#ifndef __HAVE_ARCH_PAX_OPEN_USERLAND
88193+#ifdef CONFIG_PAX_MEMORY_UDEREF
88194+#error UDEREF requires pax_open_userland
88195+#else
88196+static inline unsigned long pax_open_userland(void) { return 0; }
88197+#endif
88198+#endif
88199+
88200+#ifndef __HAVE_ARCH_PAX_CLOSE_USERLAND
88201+#ifdef CONFIG_PAX_MEMORY_UDEREF
88202+#error UDEREF requires pax_close_userland
88203+#else
88204+static inline unsigned long pax_close_userland(void) { return 0; }
88205+#endif
88206+#endif
88207+
88208 #endif /* __ASM_GENERIC_UACCESS_H */
88209diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
88210index ac78910..8b5f068 100644
88211--- a/include/asm-generic/vmlinux.lds.h
88212+++ b/include/asm-generic/vmlinux.lds.h
88213@@ -234,6 +234,7 @@
88214 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
88215 VMLINUX_SYMBOL(__start_rodata) = .; \
88216 *(.rodata) *(.rodata.*) \
88217+ *(.data..read_only) \
88218 *(__vermagic) /* Kernel version magic */ \
88219 . = ALIGN(8); \
88220 VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \
88221@@ -492,6 +493,7 @@
88222 KERNEL_CTORS() \
88223 MCOUNT_REC() \
88224 *(.init.rodata) \
88225+ *(.init.rodata.*) \
88226 FTRACE_EVENTS() \
88227 TRACE_SYSCALLS() \
88228 KPROBE_BLACKLIST() \
88229@@ -511,6 +513,8 @@
88230
88231 #define EXIT_DATA \
88232 *(.exit.data) \
88233+ *(.exit.rodata) \
88234+ *(.exit.rodata.*) \
88235 MEM_DISCARD(exit.data) \
88236 MEM_DISCARD(exit.rodata)
88237
88238@@ -727,17 +731,18 @@
88239 * section in the linker script will go there too. @phdr should have
88240 * a leading colon.
88241 *
88242- * Note that this macros defines __per_cpu_load as an absolute symbol.
88243+ * Note that this macros defines per_cpu_load as an absolute symbol.
88244 * If there is no need to put the percpu section at a predetermined
88245 * address, use PERCPU_SECTION.
88246 */
88247 #define PERCPU_VADDR(cacheline, vaddr, phdr) \
88248- VMLINUX_SYMBOL(__per_cpu_load) = .; \
88249- .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
88250+ per_cpu_load = .; \
88251+ .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \
88252 - LOAD_OFFSET) { \
88253+ VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \
88254 PERCPU_INPUT(cacheline) \
88255 } phdr \
88256- . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
88257+ . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
88258
88259 /**
88260 * PERCPU_SECTION - define output section for percpu area, simple version
88261diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
88262index 623a59c..1e79ab9 100644
88263--- a/include/crypto/algapi.h
88264+++ b/include/crypto/algapi.h
88265@@ -34,7 +34,7 @@ struct crypto_type {
88266 unsigned int maskclear;
88267 unsigned int maskset;
88268 unsigned int tfmsize;
88269-};
88270+} __do_const;
88271
88272 struct crypto_instance {
88273 struct crypto_alg alg;
88274diff --git a/include/drm/drmP.h b/include/drm/drmP.h
88275index e928625..ff97886 100644
88276--- a/include/drm/drmP.h
88277+++ b/include/drm/drmP.h
88278@@ -59,6 +59,7 @@
88279
88280 #include <asm/mman.h>
88281 #include <asm/pgalloc.h>
88282+#include <asm/local.h>
88283 #include <asm/uaccess.h>
88284
88285 #include <uapi/drm/drm.h>
88286@@ -133,17 +134,18 @@ void drm_err(const char *format, ...);
88287 /*@{*/
88288
88289 /* driver capabilities and requirements mask */
88290-#define DRIVER_USE_AGP 0x1
88291-#define DRIVER_PCI_DMA 0x8
88292-#define DRIVER_SG 0x10
88293-#define DRIVER_HAVE_DMA 0x20
88294-#define DRIVER_HAVE_IRQ 0x40
88295-#define DRIVER_IRQ_SHARED 0x80
88296-#define DRIVER_GEM 0x1000
88297-#define DRIVER_MODESET 0x2000
88298-#define DRIVER_PRIME 0x4000
88299-#define DRIVER_RENDER 0x8000
88300-#define DRIVER_ATOMIC 0x10000
88301+#define DRIVER_USE_AGP 0x1
88302+#define DRIVER_PCI_DMA 0x8
88303+#define DRIVER_SG 0x10
88304+#define DRIVER_HAVE_DMA 0x20
88305+#define DRIVER_HAVE_IRQ 0x40
88306+#define DRIVER_IRQ_SHARED 0x80
88307+#define DRIVER_GEM 0x1000
88308+#define DRIVER_MODESET 0x2000
88309+#define DRIVER_PRIME 0x4000
88310+#define DRIVER_RENDER 0x8000
88311+#define DRIVER_ATOMIC 0x10000
88312+#define DRIVER_KMS_LEGACY_CONTEXT 0x20000
88313
88314 /***********************************************************************/
88315 /** \name Macros to make printk easier */
88316@@ -224,10 +226,12 @@ void drm_err(const char *format, ...);
88317 * \param cmd command.
88318 * \param arg argument.
88319 */
88320-typedef int drm_ioctl_t(struct drm_device *dev, void *data,
88321+typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
88322+ struct drm_file *file_priv);
88323+typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
88324 struct drm_file *file_priv);
88325
88326-typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
88327+typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
88328 unsigned long arg);
88329
88330 #define DRM_IOCTL_NR(n) _IOC_NR(n)
88331@@ -243,10 +247,10 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
88332 struct drm_ioctl_desc {
88333 unsigned int cmd;
88334 int flags;
88335- drm_ioctl_t *func;
88336+ drm_ioctl_t func;
88337 unsigned int cmd_drv;
88338 const char *name;
88339-};
88340+} __do_const;
88341
88342 /**
88343 * Creates a driver or general drm_ioctl_desc array entry for the given
88344@@ -632,7 +636,8 @@ struct drm_info_list {
88345 int (*show)(struct seq_file*, void*); /** show callback */
88346 u32 driver_features; /**< Required driver features for this entry */
88347 void *data;
88348-};
88349+} __do_const;
88350+typedef struct drm_info_list __no_const drm_info_list_no_const;
88351
88352 /**
88353 * debugfs node structure. This structure represents a debugfs file.
88354@@ -716,7 +721,7 @@ struct drm_device {
88355
88356 /** \name Usage Counters */
88357 /*@{ */
88358- int open_count; /**< Outstanding files open, protected by drm_global_mutex. */
88359+ local_t open_count; /**< Outstanding files open, protected by drm_global_mutex. */
88360 spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */
88361 int buf_use; /**< Buffers in use -- cannot alloc */
88362 atomic_t buf_alloc; /**< Buffer allocation in progress */
88363diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
88364index c250a22..59d2094 100644
88365--- a/include/drm/drm_crtc_helper.h
88366+++ b/include/drm/drm_crtc_helper.h
88367@@ -160,7 +160,7 @@ struct drm_encoder_helper_funcs {
88368 int (*atomic_check)(struct drm_encoder *encoder,
88369 struct drm_crtc_state *crtc_state,
88370 struct drm_connector_state *conn_state);
88371-};
88372+} __no_const;
88373
88374 /**
88375 * struct drm_connector_helper_funcs - helper operations for connectors
88376diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
88377index d016dc5..3951fe0 100644
88378--- a/include/drm/i915_pciids.h
88379+++ b/include/drm/i915_pciids.h
88380@@ -37,7 +37,7 @@
88381 */
88382 #define INTEL_VGA_DEVICE(id, info) { \
88383 0x8086, id, \
88384- ~0, ~0, \
88385+ PCI_ANY_ID, PCI_ANY_ID, \
88386 0x030000, 0xff0000, \
88387 (unsigned long) info }
88388
88389diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
88390index 72dcbe8..8db58d7 100644
88391--- a/include/drm/ttm/ttm_memory.h
88392+++ b/include/drm/ttm/ttm_memory.h
88393@@ -48,7 +48,7 @@
88394
88395 struct ttm_mem_shrink {
88396 int (*do_shrink) (struct ttm_mem_shrink *);
88397-};
88398+} __no_const;
88399
88400 /**
88401 * struct ttm_mem_global - Global memory accounting structure.
88402diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
88403index 49a8284..9643967 100644
88404--- a/include/drm/ttm/ttm_page_alloc.h
88405+++ b/include/drm/ttm/ttm_page_alloc.h
88406@@ -80,6 +80,7 @@ void ttm_dma_page_alloc_fini(void);
88407 */
88408 extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
88409
88410+struct device;
88411 extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
88412 extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
88413
88414diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
88415index 4b840e8..155d235 100644
88416--- a/include/keys/asymmetric-subtype.h
88417+++ b/include/keys/asymmetric-subtype.h
88418@@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
88419 /* Verify the signature on a key of this subtype (optional) */
88420 int (*verify_signature)(const struct key *key,
88421 const struct public_key_signature *sig);
88422-};
88423+} __do_const;
88424
88425 /**
88426 * asymmetric_key_subtype - Get the subtype from an asymmetric key
88427diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
88428index c1da539..1dcec55 100644
88429--- a/include/linux/atmdev.h
88430+++ b/include/linux/atmdev.h
88431@@ -28,7 +28,7 @@ struct compat_atm_iobuf {
88432 #endif
88433
88434 struct k_atm_aal_stats {
88435-#define __HANDLE_ITEM(i) atomic_t i
88436+#define __HANDLE_ITEM(i) atomic_unchecked_t i
88437 __AAL_STAT_ITEMS
88438 #undef __HANDLE_ITEM
88439 };
88440@@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
88441 int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
88442 int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
88443 struct module *owner;
88444-};
88445+} __do_const ;
88446
88447 struct atmphy_ops {
88448 int (*start)(struct atm_dev *dev);
88449diff --git a/include/linux/atomic.h b/include/linux/atomic.h
88450index 5b08a85..60922fb 100644
88451--- a/include/linux/atomic.h
88452+++ b/include/linux/atomic.h
88453@@ -12,7 +12,7 @@
88454 * Atomically adds @a to @v, so long as @v was not already @u.
88455 * Returns non-zero if @v was not @u, and zero otherwise.
88456 */
88457-static inline int atomic_add_unless(atomic_t *v, int a, int u)
88458+static inline int __intentional_overflow(-1) atomic_add_unless(atomic_t *v, int a, int u)
88459 {
88460 return __atomic_add_unless(v, a, u) != u;
88461 }
88462diff --git a/include/linux/audit.h b/include/linux/audit.h
88463index c2e7e3a..8bfc0e1 100644
88464--- a/include/linux/audit.h
88465+++ b/include/linux/audit.h
88466@@ -223,7 +223,7 @@ static inline void audit_ptrace(struct task_struct *t)
88467 extern unsigned int audit_serial(void);
88468 extern int auditsc_get_stamp(struct audit_context *ctx,
88469 struct timespec *t, unsigned int *serial);
88470-extern int audit_set_loginuid(kuid_t loginuid);
88471+extern int __intentional_overflow(-1) audit_set_loginuid(kuid_t loginuid);
88472
88473 static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
88474 {
88475diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
88476index 576e463..28fd926 100644
88477--- a/include/linux/binfmts.h
88478+++ b/include/linux/binfmts.h
88479@@ -44,7 +44,7 @@ struct linux_binprm {
88480 unsigned interp_flags;
88481 unsigned interp_data;
88482 unsigned long loader, exec;
88483-};
88484+} __randomize_layout;
88485
88486 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
88487 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
88488@@ -77,8 +77,10 @@ struct linux_binfmt {
88489 int (*load_binary)(struct linux_binprm *);
88490 int (*load_shlib)(struct file *);
88491 int (*core_dump)(struct coredump_params *cprm);
88492+ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
88493+ void (*handle_mmap)(struct file *);
88494 unsigned long min_coredump; /* minimal dump size */
88495-};
88496+} __do_const __randomize_layout;
88497
88498 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
88499
88500diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
88501index dbfbf49..10be372 100644
88502--- a/include/linux/bitmap.h
88503+++ b/include/linux/bitmap.h
88504@@ -299,7 +299,7 @@ static inline int bitmap_full(const unsigned long *src, unsigned int nbits)
88505 return __bitmap_full(src, nbits);
88506 }
88507
88508-static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
88509+static inline int __intentional_overflow(-1) bitmap_weight(const unsigned long *src, unsigned int nbits)
88510 {
88511 if (small_const_nbits(nbits))
88512 return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
88513diff --git a/include/linux/bitops.h b/include/linux/bitops.h
88514index 5d858e0..336c1d9 100644
88515--- a/include/linux/bitops.h
88516+++ b/include/linux/bitops.h
88517@@ -105,7 +105,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
88518 * @word: value to rotate
88519 * @shift: bits to roll
88520 */
88521-static inline __u32 rol32(__u32 word, unsigned int shift)
88522+static inline __u32 __intentional_overflow(-1) rol32(__u32 word, unsigned int shift)
88523 {
88524 return (word << shift) | (word >> (32 - shift));
88525 }
88526@@ -115,7 +115,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
88527 * @word: value to rotate
88528 * @shift: bits to roll
88529 */
88530-static inline __u32 ror32(__u32 word, unsigned int shift)
88531+static inline __u32 __intentional_overflow(-1) ror32(__u32 word, unsigned int shift)
88532 {
88533 return (word >> shift) | (word << (32 - shift));
88534 }
88535@@ -171,7 +171,7 @@ static inline __s32 sign_extend32(__u32 value, int index)
88536 return (__s32)(value << shift) >> shift;
88537 }
88538
88539-static inline unsigned fls_long(unsigned long l)
88540+static inline unsigned __intentional_overflow(-1) fls_long(unsigned long l)
88541 {
88542 if (sizeof(l) == 4)
88543 return fls(l);
88544diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
88545index 7f9a516..8889453 100644
88546--- a/include/linux/blkdev.h
88547+++ b/include/linux/blkdev.h
88548@@ -1616,7 +1616,7 @@ struct block_device_operations {
88549 /* this callback is with swap_lock and sometimes page table lock held */
88550 void (*swap_slot_free_notify) (struct block_device *, unsigned long);
88551 struct module *owner;
88552-};
88553+} __do_const;
88554
88555 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
88556 unsigned long);
88557diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
88558index afc1343..9735539 100644
88559--- a/include/linux/blktrace_api.h
88560+++ b/include/linux/blktrace_api.h
88561@@ -25,7 +25,7 @@ struct blk_trace {
88562 struct dentry *dropped_file;
88563 struct dentry *msg_file;
88564 struct list_head running_list;
88565- atomic_t dropped;
88566+ atomic_unchecked_t dropped;
88567 };
88568
88569 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
88570diff --git a/include/linux/cache.h b/include/linux/cache.h
88571index 17e7e82..1d7da26 100644
88572--- a/include/linux/cache.h
88573+++ b/include/linux/cache.h
88574@@ -16,6 +16,14 @@
88575 #define __read_mostly
88576 #endif
88577
88578+#ifndef __read_only
88579+#ifdef CONFIG_PAX_KERNEXEC
88580+#error KERNEXEC requires __read_only
88581+#else
88582+#define __read_only __read_mostly
88583+#endif
88584+#endif
88585+
88586 #ifndef ____cacheline_aligned
88587 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
88588 #endif
88589diff --git a/include/linux/capability.h b/include/linux/capability.h
88590index aa93e5e..985a1b0 100644
88591--- a/include/linux/capability.h
88592+++ b/include/linux/capability.h
88593@@ -214,9 +214,14 @@ extern bool has_ns_capability_noaudit(struct task_struct *t,
88594 extern bool capable(int cap);
88595 extern bool ns_capable(struct user_namespace *ns, int cap);
88596 extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
88597+extern bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap);
88598 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
88599+extern bool capable_nolog(int cap);
88600+extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
88601
88602 /* audit system wants to get cap info from files as well */
88603 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
88604
88605+extern int is_privileged_binary(const struct dentry *dentry);
88606+
88607 #endif /* !_LINUX_CAPABILITY_H */
88608diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
88609index 8609d57..86e4d79 100644
88610--- a/include/linux/cdrom.h
88611+++ b/include/linux/cdrom.h
88612@@ -87,7 +87,6 @@ struct cdrom_device_ops {
88613
88614 /* driver specifications */
88615 const int capability; /* capability flags */
88616- int n_minors; /* number of active minor devices */
88617 /* handle uniform packets for scsi type devices (scsi,atapi) */
88618 int (*generic_packet) (struct cdrom_device_info *,
88619 struct packet_command *);
88620diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
88621index 4ce9056..86caac6 100644
88622--- a/include/linux/cleancache.h
88623+++ b/include/linux/cleancache.h
88624@@ -31,7 +31,7 @@ struct cleancache_ops {
88625 void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
88626 void (*invalidate_inode)(int, struct cleancache_filekey);
88627 void (*invalidate_fs)(int);
88628-};
88629+} __no_const;
88630
88631 extern struct cleancache_ops *
88632 cleancache_register_ops(struct cleancache_ops *ops);
88633diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
88634index 5591ea7..61b77ce 100644
88635--- a/include/linux/clk-provider.h
88636+++ b/include/linux/clk-provider.h
88637@@ -195,6 +195,7 @@ struct clk_ops {
88638 void (*init)(struct clk_hw *hw);
88639 int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
88640 };
88641+typedef struct clk_ops __no_const clk_ops_no_const;
88642
88643 /**
88644 * struct clk_init_data - holds init data that's common to all clocks and is
88645diff --git a/include/linux/compat.h b/include/linux/compat.h
88646index ab25814..d1540d1 100644
88647--- a/include/linux/compat.h
88648+++ b/include/linux/compat.h
88649@@ -316,7 +316,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
88650 compat_size_t __user *len_ptr);
88651
88652 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
88653-asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
88654+asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
88655 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
88656 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
88657 compat_ssize_t msgsz, int msgflg);
88658@@ -325,7 +325,7 @@ asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
88659 long compat_sys_msgctl(int first, int second, void __user *uptr);
88660 long compat_sys_shmctl(int first, int second, void __user *uptr);
88661 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
88662- unsigned nsems, const struct compat_timespec __user *timeout);
88663+ compat_long_t nsems, const struct compat_timespec __user *timeout);
88664 asmlinkage long compat_sys_keyctl(u32 option,
88665 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
88666 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
88667@@ -439,7 +439,7 @@ extern int compat_ptrace_request(struct task_struct *child,
88668 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
88669 compat_ulong_t addr, compat_ulong_t data);
88670 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
88671- compat_long_t addr, compat_long_t data);
88672+ compat_ulong_t addr, compat_ulong_t data);
88673
88674 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
88675 /*
88676diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
88677index cdf13ca..ba5e086 100644
88678--- a/include/linux/compiler-gcc.h
88679+++ b/include/linux/compiler-gcc.h
88680@@ -94,8 +94,8 @@
88681 */
88682 #define __pure __attribute__((pure))
88683 #define __aligned(x) __attribute__((aligned(x)))
88684-#define __printf(a, b) __attribute__((format(printf, a, b)))
88685-#define __scanf(a, b) __attribute__((format(scanf, a, b)))
88686+#define __printf(a, b) __attribute__((format(printf, a, b))) __nocapture(a, b)
88687+#define __scanf(a, b) __attribute__((format(scanf, a, b))) __nocapture(a, b)
88688 #define noinline __attribute__((noinline))
88689 #define __attribute_const__ __attribute__((__const__))
88690 #define __maybe_unused __attribute__((unused))
88691diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
88692index 769e198..7ee7cb5 100644
88693--- a/include/linux/compiler-gcc4.h
88694+++ b/include/linux/compiler-gcc4.h
88695@@ -39,9 +39,38 @@
88696 # define __compiletime_warning(message) __attribute__((warning(message)))
88697 # define __compiletime_error(message) __attribute__((error(message)))
88698 #endif /* __CHECKER__ */
88699+
88700+#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
88701+#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
88702+#define __bos0(ptr) __bos((ptr), 0)
88703+#define __bos1(ptr) __bos((ptr), 1)
88704 #endif /* GCC_VERSION >= 40300 */
88705
88706 #if GCC_VERSION >= 40500
88707+
88708+#ifdef RANDSTRUCT_PLUGIN
88709+#define __randomize_layout __attribute__((randomize_layout))
88710+#define __no_randomize_layout __attribute__((no_randomize_layout))
88711+#endif
88712+
88713+#ifdef CONSTIFY_PLUGIN
88714+#define __no_const __attribute__((no_const))
88715+#define __do_const __attribute__((do_const))
88716+#endif
88717+
88718+#ifdef SIZE_OVERFLOW_PLUGIN
88719+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
88720+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
88721+#endif
88722+
88723+#ifdef LATENT_ENTROPY_PLUGIN
88724+#define __latent_entropy __attribute__((latent_entropy))
88725+#endif
88726+
88727+#ifdef INITIFY_PLUGIN
88728+#define __nocapture(...) __attribute__((nocapture(__VA_ARGS__)))
88729+#endif
88730+
88731 /*
88732 * Mark a position in code as unreachable. This can be used to
88733 * suppress control flow warnings after asm blocks that transfer
88734diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
88735index efee493..8aa8f6b 100644
88736--- a/include/linux/compiler-gcc5.h
88737+++ b/include/linux/compiler-gcc5.h
88738@@ -28,6 +28,34 @@
88739 # define __compiletime_error(message) __attribute__((error(message)))
88740 #endif /* __CHECKER__ */
88741
88742+#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
88743+#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
88744+#define __bos0(ptr) __bos((ptr), 0)
88745+#define __bos1(ptr) __bos((ptr), 1)
88746+
88747+#ifdef RANDSTRUCT_PLUGIN
88748+#define __randomize_layout __attribute__((randomize_layout))
88749+#define __no_randomize_layout __attribute__((no_randomize_layout))
88750+#endif
88751+
88752+#ifdef CONSTIFY_PLUGIN
88753+#define __no_const __attribute__((no_const))
88754+#define __do_const __attribute__((do_const))
88755+#endif
88756+
88757+#ifdef SIZE_OVERFLOW_PLUGIN
88758+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
88759+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
88760+#endif
88761+
88762+#ifdef LATENT_ENTROPY_PLUGIN
88763+#define __latent_entropy __attribute__((latent_entropy))
88764+#endif
88765+
88766+#ifdef INITIFY_PLUGIN
88767+#define __nocapture(...) __attribute__((nocapture(__VA_ARGS__)))
88768+#endif
88769+
88770 /*
88771 * Mark a position in code as unreachable. This can be used to
88772 * suppress control flow warnings after asm blocks that transfer
88773diff --git a/include/linux/compiler.h b/include/linux/compiler.h
88774index 1b45e4a..eff29a7 100644
88775--- a/include/linux/compiler.h
88776+++ b/include/linux/compiler.h
88777@@ -5,11 +5,14 @@
88778
88779 #ifdef __CHECKER__
88780 # define __user __attribute__((noderef, address_space(1)))
88781+# define __force_user __force __user
88782 # define __kernel __attribute__((address_space(0)))
88783+# define __force_kernel __force __kernel
88784 # define __safe __attribute__((safe))
88785 # define __force __attribute__((force))
88786 # define __nocast __attribute__((nocast))
88787 # define __iomem __attribute__((noderef, address_space(2)))
88788+# define __force_iomem __force __iomem
88789 # define __must_hold(x) __attribute__((context(x,1,1)))
88790 # define __acquires(x) __attribute__((context(x,0,1)))
88791 # define __releases(x) __attribute__((context(x,1,0)))
88792@@ -17,20 +20,37 @@
88793 # define __release(x) __context__(x,-1)
88794 # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
88795 # define __percpu __attribute__((noderef, address_space(3)))
88796+# define __force_percpu __force __percpu
88797 #ifdef CONFIG_SPARSE_RCU_POINTER
88798 # define __rcu __attribute__((noderef, address_space(4)))
88799+# define __force_rcu __force __rcu
88800 #else
88801 # define __rcu
88802+# define __force_rcu
88803 #endif
88804 extern void __chk_user_ptr(const volatile void __user *);
88805 extern void __chk_io_ptr(const volatile void __iomem *);
88806 #else
88807-# define __user
88808-# define __kernel
88809+# ifdef CHECKER_PLUGIN
88810+//# define __user
88811+//# define __force_user
88812+//# define __kernel
88813+//# define __force_kernel
88814+# else
88815+# ifdef STRUCTLEAK_PLUGIN
88816+# define __user __attribute__((user))
88817+# else
88818+# define __user
88819+# endif
88820+# define __force_user
88821+# define __kernel
88822+# define __force_kernel
88823+# endif
88824 # define __safe
88825 # define __force
88826 # define __nocast
88827 # define __iomem
88828+# define __force_iomem
88829 # define __chk_user_ptr(x) (void)0
88830 # define __chk_io_ptr(x) (void)0
88831 # define __builtin_warning(x, y...) (1)
88832@@ -41,7 +61,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
88833 # define __release(x) (void)0
88834 # define __cond_lock(x,c) (c)
88835 # define __percpu
88836+# define __force_percpu
88837 # define __rcu
88838+# define __force_rcu
88839 #endif
88840
88841 /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
88842@@ -205,32 +227,32 @@ static __always_inline void data_access_exceeds_word_size(void)
88843 static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
88844 {
88845 switch (size) {
88846- case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
88847- case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
88848- case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
88849+ case 1: *(__u8 *)res = *(const volatile __u8 *)p; break;
88850+ case 2: *(__u16 *)res = *(const volatile __u16 *)p; break;
88851+ case 4: *(__u32 *)res = *(const volatile __u32 *)p; break;
88852 #ifdef CONFIG_64BIT
88853- case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
88854+ case 8: *(__u64 *)res = *(const volatile __u64 *)p; break;
88855 #endif
88856 default:
88857 barrier();
88858- __builtin_memcpy((void *)res, (const void *)p, size);
88859+ __builtin_memcpy(res, (const void *)p, size);
88860 data_access_exceeds_word_size();
88861 barrier();
88862 }
88863 }
88864
88865-static __always_inline void __write_once_size(volatile void *p, void *res, int size)
88866+static __always_inline void __write_once_size(volatile void *p, const void *res, int size)
88867 {
88868 switch (size) {
88869- case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
88870- case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
88871- case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
88872+ case 1: *(volatile __u8 *)p = *(const __u8 *)res; break;
88873+ case 2: *(volatile __u16 *)p = *(const __u16 *)res; break;
88874+ case 4: *(volatile __u32 *)p = *(const __u32 *)res; break;
88875 #ifdef CONFIG_64BIT
88876- case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
88877+ case 8: *(volatile __u64 *)p = *(const __u64 *)res; break;
88878 #endif
88879 default:
88880 barrier();
88881- __builtin_memcpy((void *)p, (const void *)res, size);
88882+ __builtin_memcpy((void *)p, res, size);
88883 data_access_exceeds_word_size();
88884 barrier();
88885 }
88886@@ -364,6 +386,38 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88887 # define __attribute_const__ /* unimplemented */
88888 #endif
88889
88890+#ifndef __randomize_layout
88891+# define __randomize_layout
88892+#endif
88893+
88894+#ifndef __no_randomize_layout
88895+# define __no_randomize_layout
88896+#endif
88897+
88898+#ifndef __no_const
88899+# define __no_const
88900+#endif
88901+
88902+#ifndef __do_const
88903+# define __do_const
88904+#endif
88905+
88906+#ifndef __size_overflow
88907+# define __size_overflow(...)
88908+#endif
88909+
88910+#ifndef __intentional_overflow
88911+# define __intentional_overflow(...)
88912+#endif
88913+
88914+#ifndef __latent_entropy
88915+# define __latent_entropy
88916+#endif
88917+
88918+#ifndef __nocapture
88919+# define __nocapture(...)
88920+#endif
88921+
88922 /*
88923 * Tell gcc if a function is cold. The compiler will assume any path
88924 * directly leading to the call is unlikely.
88925@@ -373,6 +427,22 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88926 #define __cold
88927 #endif
88928
88929+#ifndef __alloc_size
88930+#define __alloc_size(...)
88931+#endif
88932+
88933+#ifndef __bos
88934+#define __bos(ptr, arg)
88935+#endif
88936+
88937+#ifndef __bos0
88938+#define __bos0(ptr)
88939+#endif
88940+
88941+#ifndef __bos1
88942+#define __bos1(ptr)
88943+#endif
88944+
88945 /* Simple shorthand for a section definition */
88946 #ifndef __section
88947 # define __section(S) __attribute__ ((__section__(#S)))
88948@@ -387,6 +457,8 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88949 # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
88950 #endif
88951
88952+#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))
88953+
88954 /* Is this type a native word size -- useful for atomic operations */
88955 #ifndef __native_word
88956 # define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
88957@@ -466,8 +538,9 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88958 */
88959 #define __ACCESS_ONCE(x) ({ \
88960 __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \
88961- (volatile typeof(x) *)&(x); })
88962+ (volatile const typeof(x) *)&(x); })
88963 #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
88964+#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
88965
88966 /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
88967 #ifdef CONFIG_KPROBES
88968diff --git a/include/linux/completion.h b/include/linux/completion.h
88969index 5d5aaae..0ea9b84 100644
88970--- a/include/linux/completion.h
88971+++ b/include/linux/completion.h
88972@@ -90,16 +90,16 @@ static inline void reinit_completion(struct completion *x)
88973
88974 extern void wait_for_completion(struct completion *);
88975 extern void wait_for_completion_io(struct completion *);
88976-extern int wait_for_completion_interruptible(struct completion *x);
88977-extern int wait_for_completion_killable(struct completion *x);
88978+extern int wait_for_completion_interruptible(struct completion *x) __intentional_overflow(-1);
88979+extern int wait_for_completion_killable(struct completion *x) __intentional_overflow(-1);
88980 extern unsigned long wait_for_completion_timeout(struct completion *x,
88981- unsigned long timeout);
88982+ unsigned long timeout) __intentional_overflow(-1);
88983 extern unsigned long wait_for_completion_io_timeout(struct completion *x,
88984- unsigned long timeout);
88985+ unsigned long timeout) __intentional_overflow(-1);
88986 extern long wait_for_completion_interruptible_timeout(
88987- struct completion *x, unsigned long timeout);
88988+ struct completion *x, unsigned long timeout) __intentional_overflow(-1);
88989 extern long wait_for_completion_killable_timeout(
88990- struct completion *x, unsigned long timeout);
88991+ struct completion *x, unsigned long timeout) __intentional_overflow(-1);
88992 extern bool try_wait_for_completion(struct completion *x);
88993 extern bool completion_done(struct completion *x);
88994
88995diff --git a/include/linux/configfs.h b/include/linux/configfs.h
88996index 34025df..d94bbbc 100644
88997--- a/include/linux/configfs.h
88998+++ b/include/linux/configfs.h
88999@@ -125,7 +125,7 @@ struct configfs_attribute {
89000 const char *ca_name;
89001 struct module *ca_owner;
89002 umode_t ca_mode;
89003-};
89004+} __do_const;
89005
89006 /*
89007 * Users often need to create attribute structures for their configurable
89008diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
89009index 2ee4888..0451f5e 100644
89010--- a/include/linux/cpufreq.h
89011+++ b/include/linux/cpufreq.h
89012@@ -207,6 +207,7 @@ struct global_attr {
89013 ssize_t (*store)(struct kobject *a, struct attribute *b,
89014 const char *c, size_t count);
89015 };
89016+typedef struct global_attr __no_const global_attr_no_const;
89017
89018 #define define_one_global_ro(_name) \
89019 static struct global_attr _name = \
89020@@ -278,7 +279,7 @@ struct cpufreq_driver {
89021 bool boost_supported;
89022 bool boost_enabled;
89023 int (*set_boost)(int state);
89024-};
89025+} __do_const;
89026
89027 /* flags */
89028 #define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
89029diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
89030index 9c5e892..feb34e0 100644
89031--- a/include/linux/cpuidle.h
89032+++ b/include/linux/cpuidle.h
89033@@ -59,7 +59,8 @@ struct cpuidle_state {
89034 void (*enter_freeze) (struct cpuidle_device *dev,
89035 struct cpuidle_driver *drv,
89036 int index);
89037-};
89038+} __do_const;
89039+typedef struct cpuidle_state __no_const cpuidle_state_no_const;
89040
89041 /* Idle State Flags */
89042 #define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
89043@@ -227,7 +228,7 @@ struct cpuidle_governor {
89044 void (*reflect) (struct cpuidle_device *dev, int index);
89045
89046 struct module *owner;
89047-};
89048+} __do_const;
89049
89050 #ifdef CONFIG_CPU_IDLE
89051 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
89052diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
89053index 086549a..a572d94 100644
89054--- a/include/linux/cpumask.h
89055+++ b/include/linux/cpumask.h
89056@@ -126,17 +126,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
89057 }
89058
89059 /* Valid inputs for n are -1 and 0. */
89060-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89061+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
89062 {
89063 return n+1;
89064 }
89065
89066-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89067+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
89068 {
89069 return n+1;
89070 }
89071
89072-static inline unsigned int cpumask_next_and(int n,
89073+static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
89074 const struct cpumask *srcp,
89075 const struct cpumask *andp)
89076 {
89077@@ -182,7 +182,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
89078 *
89079 * Returns >= nr_cpu_ids if no further cpus set.
89080 */
89081-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89082+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
89083 {
89084 /* -1 is a legal arg here. */
89085 if (n != -1)
89086@@ -197,7 +197,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89087 *
89088 * Returns >= nr_cpu_ids if no further cpus unset.
89089 */
89090-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89091+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
89092 {
89093 /* -1 is a legal arg here. */
89094 if (n != -1)
89095@@ -205,7 +205,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89096 return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
89097 }
89098
89099-int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
89100+int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
89101 int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
89102 int cpumask_set_cpu_local_first(int i, int numa_node, cpumask_t *dstp);
89103
89104@@ -472,7 +472,7 @@ static inline bool cpumask_full(const struct cpumask *srcp)
89105 * cpumask_weight - Count of bits in *srcp
89106 * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
89107 */
89108-static inline unsigned int cpumask_weight(const struct cpumask *srcp)
89109+static inline unsigned int __intentional_overflow(-1) cpumask_weight(const struct cpumask *srcp)
89110 {
89111 return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
89112 }
89113diff --git a/include/linux/cred.h b/include/linux/cred.h
89114index 2fb2ca2..d6a3340 100644
89115--- a/include/linux/cred.h
89116+++ b/include/linux/cred.h
89117@@ -35,7 +35,7 @@ struct group_info {
89118 int nblocks;
89119 kgid_t small_block[NGROUPS_SMALL];
89120 kgid_t *blocks[0];
89121-};
89122+} __randomize_layout;
89123
89124 /**
89125 * get_group_info - Get a reference to a group info structure
89126@@ -137,7 +137,7 @@ struct cred {
89127 struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
89128 struct group_info *group_info; /* supplementary groups for euid/fsgid */
89129 struct rcu_head rcu; /* RCU deletion hook */
89130-};
89131+} __randomize_layout;
89132
89133 extern void __put_cred(struct cred *);
89134 extern void exit_creds(struct task_struct *);
89135@@ -195,6 +195,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
89136 static inline void validate_process_creds(void)
89137 {
89138 }
89139+static inline void validate_task_creds(struct task_struct *task)
89140+{
89141+}
89142 #endif
89143
89144 /**
89145@@ -332,6 +335,7 @@ static inline void put_cred(const struct cred *_cred)
89146
89147 #define task_uid(task) (task_cred_xxx((task), uid))
89148 #define task_euid(task) (task_cred_xxx((task), euid))
89149+#define task_securebits(task) (task_cred_xxx((task), securebits))
89150
89151 #define current_cred_xxx(xxx) \
89152 ({ \
89153diff --git a/include/linux/crypto.h b/include/linux/crypto.h
89154index fb5ef16..05d1e59 100644
89155--- a/include/linux/crypto.h
89156+++ b/include/linux/crypto.h
89157@@ -626,7 +626,7 @@ struct cipher_tfm {
89158 const u8 *key, unsigned int keylen);
89159 void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
89160 void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
89161-};
89162+} __no_const;
89163
89164 struct hash_tfm {
89165 int (*init)(struct hash_desc *desc);
89166@@ -647,13 +647,13 @@ struct compress_tfm {
89167 int (*cot_decompress)(struct crypto_tfm *tfm,
89168 const u8 *src, unsigned int slen,
89169 u8 *dst, unsigned int *dlen);
89170-};
89171+} __no_const;
89172
89173 struct rng_tfm {
89174 int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
89175 unsigned int dlen);
89176 int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
89177-};
89178+} __no_const;
89179
89180 #define crt_ablkcipher crt_u.ablkcipher
89181 #define crt_aead crt_u.aead
89182diff --git a/include/linux/ctype.h b/include/linux/ctype.h
89183index 653589e..4ef254a 100644
89184--- a/include/linux/ctype.h
89185+++ b/include/linux/ctype.h
89186@@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
89187 * Fast implementation of tolower() for internal usage. Do not use in your
89188 * code.
89189 */
89190-static inline char _tolower(const char c)
89191+static inline unsigned char _tolower(const unsigned char c)
89192 {
89193 return c | 0x20;
89194 }
89195diff --git a/include/linux/dcache.h b/include/linux/dcache.h
89196index d835879..c8e5b92 100644
89197--- a/include/linux/dcache.h
89198+++ b/include/linux/dcache.h
89199@@ -123,6 +123,9 @@ struct dentry {
89200 unsigned long d_time; /* used by d_revalidate */
89201 void *d_fsdata; /* fs-specific data */
89202
89203+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
89204+ atomic_t chroot_refcnt; /* tracks use of directory in chroot */
89205+#endif
89206 struct list_head d_lru; /* LRU list */
89207 struct list_head d_child; /* child of parent list */
89208 struct list_head d_subdirs; /* our children */
89209@@ -133,7 +136,7 @@ struct dentry {
89210 struct hlist_node d_alias; /* inode alias list */
89211 struct rcu_head d_rcu;
89212 } d_u;
89213-};
89214+} __randomize_layout;
89215
89216 /*
89217 * dentry->d_lock spinlock nesting subclasses:
89218@@ -319,7 +322,7 @@ extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
89219
89220 static inline unsigned d_count(const struct dentry *dentry)
89221 {
89222- return dentry->d_lockref.count;
89223+ return __lockref_read(&dentry->d_lockref);
89224 }
89225
89226 /*
89227@@ -347,7 +350,7 @@ extern char *dentry_path(struct dentry *, char *, int);
89228 static inline struct dentry *dget_dlock(struct dentry *dentry)
89229 {
89230 if (dentry)
89231- dentry->d_lockref.count++;
89232+ __lockref_inc(&dentry->d_lockref);
89233 return dentry;
89234 }
89235
89236diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
89237index 7925bf0..d5143d2 100644
89238--- a/include/linux/decompress/mm.h
89239+++ b/include/linux/decompress/mm.h
89240@@ -77,7 +77,7 @@ static void free(void *where)
89241 * warnings when not needed (indeed large_malloc / large_free are not
89242 * needed by inflate */
89243
89244-#define malloc(a) kmalloc(a, GFP_KERNEL)
89245+#define malloc(a) kmalloc((a), GFP_KERNEL)
89246 #define free(a) kfree(a)
89247
89248 #define large_malloc(a) vmalloc(a)
89249diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
89250index ce447f0..83c66bd 100644
89251--- a/include/linux/devfreq.h
89252+++ b/include/linux/devfreq.h
89253@@ -114,7 +114,7 @@ struct devfreq_governor {
89254 int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
89255 int (*event_handler)(struct devfreq *devfreq,
89256 unsigned int event, void *data);
89257-};
89258+} __do_const;
89259
89260 /**
89261 * struct devfreq - Device devfreq structure
89262diff --git a/include/linux/device.h b/include/linux/device.h
89263index 0eb8ee2..c603b6a 100644
89264--- a/include/linux/device.h
89265+++ b/include/linux/device.h
89266@@ -311,7 +311,7 @@ struct subsys_interface {
89267 struct list_head node;
89268 int (*add_dev)(struct device *dev, struct subsys_interface *sif);
89269 int (*remove_dev)(struct device *dev, struct subsys_interface *sif);
89270-};
89271+} __do_const;
89272
89273 int subsys_interface_register(struct subsys_interface *sif);
89274 void subsys_interface_unregister(struct subsys_interface *sif);
89275@@ -507,7 +507,7 @@ struct device_type {
89276 void (*release)(struct device *dev);
89277
89278 const struct dev_pm_ops *pm;
89279-};
89280+} __do_const;
89281
89282 /* interface for exporting device attributes */
89283 struct device_attribute {
89284@@ -517,11 +517,12 @@ struct device_attribute {
89285 ssize_t (*store)(struct device *dev, struct device_attribute *attr,
89286 const char *buf, size_t count);
89287 };
89288+typedef struct device_attribute __no_const device_attribute_no_const;
89289
89290 struct dev_ext_attribute {
89291 struct device_attribute attr;
89292 void *var;
89293-};
89294+} __do_const;
89295
89296 ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
89297 char *buf);
89298diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
89299index c3007cb..43efc8c 100644
89300--- a/include/linux/dma-mapping.h
89301+++ b/include/linux/dma-mapping.h
89302@@ -60,7 +60,7 @@ struct dma_map_ops {
89303 u64 (*get_required_mask)(struct device *dev);
89304 #endif
89305 int is_phys;
89306-};
89307+} __do_const;
89308
89309 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
89310
89311diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
89312index b6997a0..108be6c 100644
89313--- a/include/linux/dmaengine.h
89314+++ b/include/linux/dmaengine.h
89315@@ -1133,9 +1133,9 @@ struct dma_pinned_list {
89316 struct dma_pinned_list *dma_pin_iovec_pages(struct iovec *iov, size_t len);
89317 void dma_unpin_iovec_pages(struct dma_pinned_list* pinned_list);
89318
89319-dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
89320+dma_cookie_t __intentional_overflow(0) dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
89321 struct dma_pinned_list *pinned_list, unsigned char *kdata, size_t len);
89322-dma_cookie_t dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
89323+dma_cookie_t __intentional_overflow(0) dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
89324 struct dma_pinned_list *pinned_list, struct page *page,
89325 unsigned int offset, size_t len);
89326
89327diff --git a/include/linux/efi.h b/include/linux/efi.h
89328index cf7e431..d239dce 100644
89329--- a/include/linux/efi.h
89330+++ b/include/linux/efi.h
89331@@ -1056,6 +1056,7 @@ struct efivar_operations {
89332 efi_set_variable_nonblocking_t *set_variable_nonblocking;
89333 efi_query_variable_store_t *query_variable_store;
89334 };
89335+typedef struct efivar_operations __no_const efivar_operations_no_const;
89336
89337 struct efivars {
89338 /*
89339diff --git a/include/linux/elf.h b/include/linux/elf.h
89340index 20fa8d8..3d0dd18 100644
89341--- a/include/linux/elf.h
89342+++ b/include/linux/elf.h
89343@@ -29,6 +29,7 @@ extern Elf32_Dyn _DYNAMIC [];
89344 #define elf_note elf32_note
89345 #define elf_addr_t Elf32_Off
89346 #define Elf_Half Elf32_Half
89347+#define elf_dyn Elf32_Dyn
89348
89349 #else
89350
89351@@ -39,6 +40,7 @@ extern Elf64_Dyn _DYNAMIC [];
89352 #define elf_note elf64_note
89353 #define elf_addr_t Elf64_Off
89354 #define Elf_Half Elf64_Half
89355+#define elf_dyn Elf64_Dyn
89356
89357 #endif
89358
89359diff --git a/include/linux/err.h b/include/linux/err.h
89360index a729120..6ede2c9 100644
89361--- a/include/linux/err.h
89362+++ b/include/linux/err.h
89363@@ -20,12 +20,12 @@
89364
89365 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
89366
89367-static inline void * __must_check ERR_PTR(long error)
89368+static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
89369 {
89370 return (void *) error;
89371 }
89372
89373-static inline long __must_check PTR_ERR(__force const void *ptr)
89374+static inline long __must_check __intentional_overflow(-1) PTR_ERR(__force const void *ptr)
89375 {
89376 return (long) ptr;
89377 }
89378diff --git a/include/linux/extcon.h b/include/linux/extcon.h
89379index 36f49c4..a2a1f4c 100644
89380--- a/include/linux/extcon.h
89381+++ b/include/linux/extcon.h
89382@@ -135,7 +135,7 @@ struct extcon_dev {
89383 /* /sys/class/extcon/.../mutually_exclusive/... */
89384 struct attribute_group attr_g_muex;
89385 struct attribute **attrs_muex;
89386- struct device_attribute *d_attrs_muex;
89387+ device_attribute_no_const *d_attrs_muex;
89388 };
89389
89390 /**
89391diff --git a/include/linux/fb.h b/include/linux/fb.h
89392index 043f328..180ccbf 100644
89393--- a/include/linux/fb.h
89394+++ b/include/linux/fb.h
89395@@ -305,7 +305,8 @@ struct fb_ops {
89396 /* called at KDB enter and leave time to prepare the console */
89397 int (*fb_debug_enter)(struct fb_info *info);
89398 int (*fb_debug_leave)(struct fb_info *info);
89399-};
89400+} __do_const;
89401+typedef struct fb_ops __no_const fb_ops_no_const;
89402
89403 #ifdef CONFIG_FB_TILEBLITTING
89404 #define FB_TILE_CURSOR_NONE 0
89405diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
89406index 230f87b..1fd0485 100644
89407--- a/include/linux/fdtable.h
89408+++ b/include/linux/fdtable.h
89409@@ -100,7 +100,7 @@ struct files_struct *get_files_struct(struct task_struct *);
89410 void put_files_struct(struct files_struct *fs);
89411 void reset_files_struct(struct files_struct *);
89412 int unshare_files(struct files_struct **);
89413-struct files_struct *dup_fd(struct files_struct *, int *);
89414+struct files_struct *dup_fd(struct files_struct *, int *) __latent_entropy;
89415 void do_close_on_exec(struct files_struct *);
89416 int iterate_fd(struct files_struct *, unsigned,
89417 int (*)(const void *, struct file *, unsigned),
89418diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
89419index 8293262..2b3b8bd 100644
89420--- a/include/linux/frontswap.h
89421+++ b/include/linux/frontswap.h
89422@@ -11,7 +11,7 @@ struct frontswap_ops {
89423 int (*load)(unsigned, pgoff_t, struct page *);
89424 void (*invalidate_page)(unsigned, pgoff_t);
89425 void (*invalidate_area)(unsigned);
89426-};
89427+} __no_const;
89428
89429 extern bool frontswap_enabled;
89430 extern struct frontswap_ops *
89431diff --git a/include/linux/fs.h b/include/linux/fs.h
89432index 52cc449..31f35cb 100644
89433--- a/include/linux/fs.h
89434+++ b/include/linux/fs.h
89435@@ -410,7 +410,7 @@ struct address_space {
89436 spinlock_t private_lock; /* for use by the address_space */
89437 struct list_head private_list; /* ditto */
89438 void *private_data; /* ditto */
89439-} __attribute__((aligned(sizeof(long))));
89440+} __attribute__((aligned(sizeof(long)))) __randomize_layout;
89441 /*
89442 * On most architectures that alignment is already the case; but
89443 * must be enforced here for CRIS, to let the least significant bit
89444@@ -453,7 +453,7 @@ struct block_device {
89445 int bd_fsfreeze_count;
89446 /* Mutex for freeze */
89447 struct mutex bd_fsfreeze_mutex;
89448-};
89449+} __randomize_layout;
89450
89451 /*
89452 * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
89453@@ -639,7 +639,7 @@ struct inode {
89454 #endif
89455
89456 void *i_private; /* fs or device private pointer */
89457-};
89458+} __randomize_layout;
89459
89460 static inline int inode_unhashed(struct inode *inode)
89461 {
89462@@ -834,7 +834,7 @@ struct file {
89463 struct list_head f_tfile_llink;
89464 #endif /* #ifdef CONFIG_EPOLL */
89465 struct address_space *f_mapping;
89466-} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
89467+} __attribute__((aligned(4))) __randomize_layout; /* lest something weird decides that 2 is OK */
89468
89469 struct file_handle {
89470 __u32 handle_bytes;
89471@@ -962,7 +962,7 @@ struct file_lock {
89472 int state; /* state of grant or error if -ve */
89473 } afs;
89474 } fl_u;
89475-};
89476+} __randomize_layout;
89477
89478 struct file_lock_context {
89479 spinlock_t flc_lock;
89480@@ -1316,7 +1316,7 @@ struct super_block {
89481 * Indicates how deep in a filesystem stack this SB is
89482 */
89483 int s_stack_depth;
89484-};
89485+} __randomize_layout;
89486
89487 extern struct timespec current_fs_time(struct super_block *sb);
89488
89489@@ -1570,7 +1570,8 @@ struct file_operations {
89490 #ifndef CONFIG_MMU
89491 unsigned (*mmap_capabilities)(struct file *);
89492 #endif
89493-};
89494+} __do_const __randomize_layout;
89495+typedef struct file_operations __no_const file_operations_no_const;
89496
89497 struct inode_operations {
89498 struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
89499@@ -2269,7 +2270,7 @@ extern int register_chrdev_region(dev_t, unsigned, const char *);
89500 extern int __register_chrdev(unsigned int major, unsigned int baseminor,
89501 unsigned int count, const char *name,
89502 const struct file_operations *fops);
89503-extern void __unregister_chrdev(unsigned int major, unsigned int baseminor,
89504+extern __nocapture(4) void __unregister_chrdev(unsigned int major, unsigned int baseminor,
89505 unsigned int count, const char *name);
89506 extern void unregister_chrdev_region(dev_t, unsigned);
89507 extern void chrdev_show(struct seq_file *,off_t);
89508@@ -2918,4 +2919,14 @@ static inline bool dir_relax(struct inode *inode)
89509 return !IS_DEADDIR(inode);
89510 }
89511
89512+static inline bool is_sidechannel_device(const struct inode *inode)
89513+{
89514+#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
89515+ umode_t mode = inode->i_mode;
89516+ return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
89517+#else
89518+ return false;
89519+#endif
89520+}
89521+
89522 #endif /* _LINUX_FS_H */
89523diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
89524index 0efc3e6..fd23610 100644
89525--- a/include/linux/fs_struct.h
89526+++ b/include/linux/fs_struct.h
89527@@ -6,13 +6,13 @@
89528 #include <linux/seqlock.h>
89529
89530 struct fs_struct {
89531- int users;
89532+ atomic_t users;
89533 spinlock_t lock;
89534 seqcount_t seq;
89535 int umask;
89536 int in_exec;
89537 struct path root, pwd;
89538-};
89539+} __randomize_layout;
89540
89541 extern struct kmem_cache *fs_cachep;
89542
89543diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
89544index 7714849..a4a5c7a 100644
89545--- a/include/linux/fscache-cache.h
89546+++ b/include/linux/fscache-cache.h
89547@@ -113,7 +113,7 @@ struct fscache_operation {
89548 fscache_operation_release_t release;
89549 };
89550
89551-extern atomic_t fscache_op_debug_id;
89552+extern atomic_unchecked_t fscache_op_debug_id;
89553 extern void fscache_op_work_func(struct work_struct *work);
89554
89555 extern void fscache_enqueue_operation(struct fscache_operation *);
89556@@ -135,7 +135,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
89557 INIT_WORK(&op->work, fscache_op_work_func);
89558 atomic_set(&op->usage, 1);
89559 op->state = FSCACHE_OP_ST_INITIALISED;
89560- op->debug_id = atomic_inc_return(&fscache_op_debug_id);
89561+ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
89562 op->processor = processor;
89563 op->release = release;
89564 INIT_LIST_HEAD(&op->pend_link);
89565diff --git a/include/linux/fscache.h b/include/linux/fscache.h
89566index 115bb81..e7b812b 100644
89567--- a/include/linux/fscache.h
89568+++ b/include/linux/fscache.h
89569@@ -152,7 +152,7 @@ struct fscache_cookie_def {
89570 * - this is mandatory for any object that may have data
89571 */
89572 void (*now_uncached)(void *cookie_netfs_data);
89573-};
89574+} __do_const;
89575
89576 /*
89577 * fscache cached network filesystem type
89578diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
89579index 7ee1774..72505b8 100644
89580--- a/include/linux/fsnotify.h
89581+++ b/include/linux/fsnotify.h
89582@@ -197,6 +197,9 @@ static inline void fsnotify_access(struct file *file)
89583 struct inode *inode = file_inode(file);
89584 __u32 mask = FS_ACCESS;
89585
89586+ if (is_sidechannel_device(inode))
89587+ return;
89588+
89589 if (S_ISDIR(inode->i_mode))
89590 mask |= FS_ISDIR;
89591
89592@@ -215,6 +218,9 @@ static inline void fsnotify_modify(struct file *file)
89593 struct inode *inode = file_inode(file);
89594 __u32 mask = FS_MODIFY;
89595
89596+ if (is_sidechannel_device(inode))
89597+ return;
89598+
89599 if (S_ISDIR(inode->i_mode))
89600 mask |= FS_ISDIR;
89601
89602@@ -317,7 +323,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
89603 */
89604 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
89605 {
89606- return kstrdup(name, GFP_KERNEL);
89607+ return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
89608 }
89609
89610 /*
89611diff --git a/include/linux/genhd.h b/include/linux/genhd.h
89612index ec274e0..e678159 100644
89613--- a/include/linux/genhd.h
89614+++ b/include/linux/genhd.h
89615@@ -194,7 +194,7 @@ struct gendisk {
89616 struct kobject *slave_dir;
89617
89618 struct timer_rand_state *random;
89619- atomic_t sync_io; /* RAID */
89620+ atomic_unchecked_t sync_io; /* RAID */
89621 struct disk_events *ev;
89622 #ifdef CONFIG_BLK_DEV_INTEGRITY
89623 struct blk_integrity *integrity;
89624@@ -435,7 +435,7 @@ extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
89625 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
89626
89627 /* drivers/char/random.c */
89628-extern void add_disk_randomness(struct gendisk *disk);
89629+extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
89630 extern void rand_initialize_disk(struct gendisk *disk);
89631
89632 static inline sector_t get_start_sect(struct block_device *bdev)
89633diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
89634index 667c311..abac2a7 100644
89635--- a/include/linux/genl_magic_func.h
89636+++ b/include/linux/genl_magic_func.h
89637@@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
89638 },
89639
89640 #define ZZZ_genl_ops CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
89641-static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
89642+static struct genl_ops ZZZ_genl_ops[] = {
89643 #include GENL_MAGIC_INCLUDE_FILE
89644 };
89645
89646diff --git a/include/linux/gfp.h b/include/linux/gfp.h
89647index 51bd1e7..0486343 100644
89648--- a/include/linux/gfp.h
89649+++ b/include/linux/gfp.h
89650@@ -34,6 +34,13 @@ struct vm_area_struct;
89651 #define ___GFP_NO_KSWAPD 0x400000u
89652 #define ___GFP_OTHER_NODE 0x800000u
89653 #define ___GFP_WRITE 0x1000000u
89654+
89655+#ifdef CONFIG_PAX_USERCOPY_SLABS
89656+#define ___GFP_USERCOPY 0x2000000u
89657+#else
89658+#define ___GFP_USERCOPY 0
89659+#endif
89660+
89661 /* If the above are modified, __GFP_BITS_SHIFT may need updating */
89662
89663 /*
89664@@ -90,6 +97,7 @@ struct vm_area_struct;
89665 #define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD)
89666 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
89667 #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */
89668+#define __GFP_USERCOPY ((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
89669
89670 /*
89671 * This may seem redundant, but it's a way of annotating false positives vs.
89672@@ -97,7 +105,7 @@ struct vm_area_struct;
89673 */
89674 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
89675
89676-#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */
89677+#define __GFP_BITS_SHIFT 26 /* Room for N __GFP_FOO bits */
89678 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
89679
89680 /* This equals 0, but use constants in case they ever change */
89681@@ -152,6 +160,8 @@ struct vm_area_struct;
89682 /* 4GB DMA on some platforms */
89683 #define GFP_DMA32 __GFP_DMA32
89684
89685+#define GFP_USERCOPY __GFP_USERCOPY
89686+
89687 /* Convert GFP flags to their corresponding migrate type */
89688 static inline int gfpflags_to_migratetype(const gfp_t gfp_flags)
89689 {
89690diff --git a/include/linux/gracl.h b/include/linux/gracl.h
89691new file mode 100644
89692index 0000000..91858e4
89693--- /dev/null
89694+++ b/include/linux/gracl.h
89695@@ -0,0 +1,342 @@
89696+#ifndef GR_ACL_H
89697+#define GR_ACL_H
89698+
89699+#include <linux/grdefs.h>
89700+#include <linux/resource.h>
89701+#include <linux/capability.h>
89702+#include <linux/dcache.h>
89703+#include <asm/resource.h>
89704+
89705+/* Major status information */
89706+
89707+#define GR_VERSION "grsecurity 3.1"
89708+#define GRSECURITY_VERSION 0x3100
89709+
89710+enum {
89711+ GR_SHUTDOWN = 0,
89712+ GR_ENABLE = 1,
89713+ GR_SPROLE = 2,
89714+ GR_OLDRELOAD = 3,
89715+ GR_SEGVMOD = 4,
89716+ GR_STATUS = 5,
89717+ GR_UNSPROLE = 6,
89718+ GR_PASSSET = 7,
89719+ GR_SPROLEPAM = 8,
89720+ GR_RELOAD = 9,
89721+};
89722+
89723+/* Password setup definitions
89724+ * kernel/grhash.c */
89725+enum {
89726+ GR_PW_LEN = 128,
89727+ GR_SALT_LEN = 16,
89728+ GR_SHA_LEN = 32,
89729+};
89730+
89731+enum {
89732+ GR_SPROLE_LEN = 64,
89733+};
89734+
89735+enum {
89736+ GR_NO_GLOB = 0,
89737+ GR_REG_GLOB,
89738+ GR_CREATE_GLOB
89739+};
89740+
89741+#define GR_NLIMITS 32
89742+
89743+/* Begin Data Structures */
89744+
89745+struct sprole_pw {
89746+ unsigned char *rolename;
89747+ unsigned char salt[GR_SALT_LEN];
89748+ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
89749+};
89750+
89751+struct name_entry {
89752+ __u32 key;
89753+ u64 inode;
89754+ dev_t device;
89755+ char *name;
89756+ __u16 len;
89757+ __u8 deleted;
89758+ struct name_entry *prev;
89759+ struct name_entry *next;
89760+};
89761+
89762+struct inodev_entry {
89763+ struct name_entry *nentry;
89764+ struct inodev_entry *prev;
89765+ struct inodev_entry *next;
89766+};
89767+
89768+struct acl_role_db {
89769+ struct acl_role_label **r_hash;
89770+ __u32 r_size;
89771+};
89772+
89773+struct inodev_db {
89774+ struct inodev_entry **i_hash;
89775+ __u32 i_size;
89776+};
89777+
89778+struct name_db {
89779+ struct name_entry **n_hash;
89780+ __u32 n_size;
89781+};
89782+
89783+struct crash_uid {
89784+ uid_t uid;
89785+ unsigned long expires;
89786+};
89787+
89788+struct gr_hash_struct {
89789+ void **table;
89790+ void **nametable;
89791+ void *first;
89792+ __u32 table_size;
89793+ __u32 used_size;
89794+ int type;
89795+};
89796+
89797+/* Userspace Grsecurity ACL data structures */
89798+
89799+struct acl_subject_label {
89800+ char *filename;
89801+ u64 inode;
89802+ dev_t device;
89803+ __u32 mode;
89804+ kernel_cap_t cap_mask;
89805+ kernel_cap_t cap_lower;
89806+ kernel_cap_t cap_invert_audit;
89807+
89808+ struct rlimit res[GR_NLIMITS];
89809+ __u32 resmask;
89810+
89811+ __u8 user_trans_type;
89812+ __u8 group_trans_type;
89813+ uid_t *user_transitions;
89814+ gid_t *group_transitions;
89815+ __u16 user_trans_num;
89816+ __u16 group_trans_num;
89817+
89818+ __u32 sock_families[2];
89819+ __u32 ip_proto[8];
89820+ __u32 ip_type;
89821+ struct acl_ip_label **ips;
89822+ __u32 ip_num;
89823+ __u32 inaddr_any_override;
89824+
89825+ __u32 crashes;
89826+ unsigned long expires;
89827+
89828+ struct acl_subject_label *parent_subject;
89829+ struct gr_hash_struct *hash;
89830+ struct acl_subject_label *prev;
89831+ struct acl_subject_label *next;
89832+
89833+ struct acl_object_label **obj_hash;
89834+ __u32 obj_hash_size;
89835+ __u16 pax_flags;
89836+};
89837+
89838+struct role_allowed_ip {
89839+ __u32 addr;
89840+ __u32 netmask;
89841+
89842+ struct role_allowed_ip *prev;
89843+ struct role_allowed_ip *next;
89844+};
89845+
89846+struct role_transition {
89847+ char *rolename;
89848+
89849+ struct role_transition *prev;
89850+ struct role_transition *next;
89851+};
89852+
89853+struct acl_role_label {
89854+ char *rolename;
89855+ uid_t uidgid;
89856+ __u16 roletype;
89857+
89858+ __u16 auth_attempts;
89859+ unsigned long expires;
89860+
89861+ struct acl_subject_label *root_label;
89862+ struct gr_hash_struct *hash;
89863+
89864+ struct acl_role_label *prev;
89865+ struct acl_role_label *next;
89866+
89867+ struct role_transition *transitions;
89868+ struct role_allowed_ip *allowed_ips;
89869+ uid_t *domain_children;
89870+ __u16 domain_child_num;
89871+
89872+ umode_t umask;
89873+
89874+ struct acl_subject_label **subj_hash;
89875+ __u32 subj_hash_size;
89876+};
89877+
89878+struct user_acl_role_db {
89879+ struct acl_role_label **r_table;
89880+ __u32 num_pointers; /* Number of allocations to track */
89881+ __u32 num_roles; /* Number of roles */
89882+ __u32 num_domain_children; /* Number of domain children */
89883+ __u32 num_subjects; /* Number of subjects */
89884+ __u32 num_objects; /* Number of objects */
89885+};
89886+
89887+struct acl_object_label {
89888+ char *filename;
89889+ u64 inode;
89890+ dev_t device;
89891+ __u32 mode;
89892+
89893+ struct acl_subject_label *nested;
89894+ struct acl_object_label *globbed;
89895+
89896+ /* next two structures not used */
89897+
89898+ struct acl_object_label *prev;
89899+ struct acl_object_label *next;
89900+};
89901+
89902+struct acl_ip_label {
89903+ char *iface;
89904+ __u32 addr;
89905+ __u32 netmask;
89906+ __u16 low, high;
89907+ __u8 mode;
89908+ __u32 type;
89909+ __u32 proto[8];
89910+
89911+ /* next two structures not used */
89912+
89913+ struct acl_ip_label *prev;
89914+ struct acl_ip_label *next;
89915+};
89916+
89917+struct gr_arg {
89918+ struct user_acl_role_db role_db;
89919+ unsigned char pw[GR_PW_LEN];
89920+ unsigned char salt[GR_SALT_LEN];
89921+ unsigned char sum[GR_SHA_LEN];
89922+ unsigned char sp_role[GR_SPROLE_LEN];
89923+ struct sprole_pw *sprole_pws;
89924+ dev_t segv_device;
89925+ u64 segv_inode;
89926+ uid_t segv_uid;
89927+ __u16 num_sprole_pws;
89928+ __u16 mode;
89929+};
89930+
89931+struct gr_arg_wrapper {
89932+ struct gr_arg *arg;
89933+ __u32 version;
89934+ __u32 size;
89935+};
89936+
89937+struct subject_map {
89938+ struct acl_subject_label *user;
89939+ struct acl_subject_label *kernel;
89940+ struct subject_map *prev;
89941+ struct subject_map *next;
89942+};
89943+
89944+struct acl_subj_map_db {
89945+ struct subject_map **s_hash;
89946+ __u32 s_size;
89947+};
89948+
89949+struct gr_policy_state {
89950+ struct sprole_pw **acl_special_roles;
89951+ __u16 num_sprole_pws;
89952+ struct acl_role_label *kernel_role;
89953+ struct acl_role_label *role_list;
89954+ struct acl_role_label *default_role;
89955+ struct acl_role_db acl_role_set;
89956+ struct acl_subj_map_db subj_map_set;
89957+ struct name_db name_set;
89958+ struct inodev_db inodev_set;
89959+};
89960+
89961+struct gr_alloc_state {
89962+ unsigned long alloc_stack_next;
89963+ unsigned long alloc_stack_size;
89964+ void **alloc_stack;
89965+};
89966+
89967+struct gr_reload_state {
89968+ struct gr_policy_state oldpolicy;
89969+ struct gr_alloc_state oldalloc;
89970+ struct gr_policy_state newpolicy;
89971+ struct gr_alloc_state newalloc;
89972+ struct gr_policy_state *oldpolicy_ptr;
89973+ struct gr_alloc_state *oldalloc_ptr;
89974+ unsigned char oldmode;
89975+};
89976+
89977+/* End Data Structures Section */
89978+
89979+/* Hash functions generated by empirical testing by Brad Spengler
89980+ Makes good use of the low bits of the inode. Generally 0-1 times
89981+ in loop for successful match. 0-3 for unsuccessful match.
89982+ Shift/add algorithm with modulus of table size and an XOR*/
89983+
89984+static __inline__ unsigned int
89985+gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
89986+{
89987+ return ((((uid + type) << (16 + type)) ^ uid) % sz);
89988+}
89989+
89990+ static __inline__ unsigned int
89991+gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
89992+{
89993+ return ((const unsigned long)userp % sz);
89994+}
89995+
89996+static __inline__ unsigned int
89997+gr_fhash(const u64 ino, const dev_t dev, const unsigned int sz)
89998+{
89999+ unsigned int rem;
90000+ div_u64_rem((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9)), sz, &rem);
90001+ return rem;
90002+}
90003+
90004+static __inline__ unsigned int
90005+gr_nhash(const char *name, const __u16 len, const unsigned int sz)
90006+{
90007+ return full_name_hash((const unsigned char *)name, len) % sz;
90008+}
90009+
90010+#define FOR_EACH_SUBJECT_START(role,subj,iter) \
90011+ subj = NULL; \
90012+ iter = 0; \
90013+ while (iter < role->subj_hash_size) { \
90014+ if (subj == NULL) \
90015+ subj = role->subj_hash[iter]; \
90016+ if (subj == NULL) { \
90017+ iter++; \
90018+ continue; \
90019+ }
90020+
90021+#define FOR_EACH_SUBJECT_END(subj,iter) \
90022+ subj = subj->next; \
90023+ if (subj == NULL) \
90024+ iter++; \
90025+ }
90026+
90027+
90028+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
90029+ subj = role->hash->first; \
90030+ while (subj != NULL) {
90031+
90032+#define FOR_EACH_NESTED_SUBJECT_END(subj) \
90033+ subj = subj->next; \
90034+ }
90035+
90036+#endif
90037+
90038diff --git a/include/linux/gracl_compat.h b/include/linux/gracl_compat.h
90039new file mode 100644
90040index 0000000..af64092
90041--- /dev/null
90042+++ b/include/linux/gracl_compat.h
90043@@ -0,0 +1,156 @@
90044+#ifndef GR_ACL_COMPAT_H
90045+#define GR_ACL_COMPAT_H
90046+
90047+#include <linux/resource.h>
90048+#include <asm/resource.h>
90049+
90050+struct sprole_pw_compat {
90051+ compat_uptr_t rolename;
90052+ unsigned char salt[GR_SALT_LEN];
90053+ unsigned char sum[GR_SHA_LEN];
90054+};
90055+
90056+struct gr_hash_struct_compat {
90057+ compat_uptr_t table;
90058+ compat_uptr_t nametable;
90059+ compat_uptr_t first;
90060+ __u32 table_size;
90061+ __u32 used_size;
90062+ int type;
90063+};
90064+
90065+struct acl_subject_label_compat {
90066+ compat_uptr_t filename;
90067+ compat_u64 inode;
90068+ __u32 device;
90069+ __u32 mode;
90070+ kernel_cap_t cap_mask;
90071+ kernel_cap_t cap_lower;
90072+ kernel_cap_t cap_invert_audit;
90073+
90074+ struct compat_rlimit res[GR_NLIMITS];
90075+ __u32 resmask;
90076+
90077+ __u8 user_trans_type;
90078+ __u8 group_trans_type;
90079+ compat_uptr_t user_transitions;
90080+ compat_uptr_t group_transitions;
90081+ __u16 user_trans_num;
90082+ __u16 group_trans_num;
90083+
90084+ __u32 sock_families[2];
90085+ __u32 ip_proto[8];
90086+ __u32 ip_type;
90087+ compat_uptr_t ips;
90088+ __u32 ip_num;
90089+ __u32 inaddr_any_override;
90090+
90091+ __u32 crashes;
90092+ compat_ulong_t expires;
90093+
90094+ compat_uptr_t parent_subject;
90095+ compat_uptr_t hash;
90096+ compat_uptr_t prev;
90097+ compat_uptr_t next;
90098+
90099+ compat_uptr_t obj_hash;
90100+ __u32 obj_hash_size;
90101+ __u16 pax_flags;
90102+};
90103+
90104+struct role_allowed_ip_compat {
90105+ __u32 addr;
90106+ __u32 netmask;
90107+
90108+ compat_uptr_t prev;
90109+ compat_uptr_t next;
90110+};
90111+
90112+struct role_transition_compat {
90113+ compat_uptr_t rolename;
90114+
90115+ compat_uptr_t prev;
90116+ compat_uptr_t next;
90117+};
90118+
90119+struct acl_role_label_compat {
90120+ compat_uptr_t rolename;
90121+ uid_t uidgid;
90122+ __u16 roletype;
90123+
90124+ __u16 auth_attempts;
90125+ compat_ulong_t expires;
90126+
90127+ compat_uptr_t root_label;
90128+ compat_uptr_t hash;
90129+
90130+ compat_uptr_t prev;
90131+ compat_uptr_t next;
90132+
90133+ compat_uptr_t transitions;
90134+ compat_uptr_t allowed_ips;
90135+ compat_uptr_t domain_children;
90136+ __u16 domain_child_num;
90137+
90138+ umode_t umask;
90139+
90140+ compat_uptr_t subj_hash;
90141+ __u32 subj_hash_size;
90142+};
90143+
90144+struct user_acl_role_db_compat {
90145+ compat_uptr_t r_table;
90146+ __u32 num_pointers;
90147+ __u32 num_roles;
90148+ __u32 num_domain_children;
90149+ __u32 num_subjects;
90150+ __u32 num_objects;
90151+};
90152+
90153+struct acl_object_label_compat {
90154+ compat_uptr_t filename;
90155+ compat_u64 inode;
90156+ __u32 device;
90157+ __u32 mode;
90158+
90159+ compat_uptr_t nested;
90160+ compat_uptr_t globbed;
90161+
90162+ compat_uptr_t prev;
90163+ compat_uptr_t next;
90164+};
90165+
90166+struct acl_ip_label_compat {
90167+ compat_uptr_t iface;
90168+ __u32 addr;
90169+ __u32 netmask;
90170+ __u16 low, high;
90171+ __u8 mode;
90172+ __u32 type;
90173+ __u32 proto[8];
90174+
90175+ compat_uptr_t prev;
90176+ compat_uptr_t next;
90177+};
90178+
90179+struct gr_arg_compat {
90180+ struct user_acl_role_db_compat role_db;
90181+ unsigned char pw[GR_PW_LEN];
90182+ unsigned char salt[GR_SALT_LEN];
90183+ unsigned char sum[GR_SHA_LEN];
90184+ unsigned char sp_role[GR_SPROLE_LEN];
90185+ compat_uptr_t sprole_pws;
90186+ __u32 segv_device;
90187+ compat_u64 segv_inode;
90188+ uid_t segv_uid;
90189+ __u16 num_sprole_pws;
90190+ __u16 mode;
90191+};
90192+
90193+struct gr_arg_wrapper_compat {
90194+ compat_uptr_t arg;
90195+ __u32 version;
90196+ __u32 size;
90197+};
90198+
90199+#endif
90200diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
90201new file mode 100644
90202index 0000000..323ecf2
90203--- /dev/null
90204+++ b/include/linux/gralloc.h
90205@@ -0,0 +1,9 @@
90206+#ifndef __GRALLOC_H
90207+#define __GRALLOC_H
90208+
90209+void acl_free_all(void);
90210+int acl_alloc_stack_init(unsigned long size);
90211+void *acl_alloc(unsigned long len);
90212+void *acl_alloc_num(unsigned long num, unsigned long len);
90213+
90214+#endif
90215diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
90216new file mode 100644
90217index 0000000..be66033
90218--- /dev/null
90219+++ b/include/linux/grdefs.h
90220@@ -0,0 +1,140 @@
90221+#ifndef GRDEFS_H
90222+#define GRDEFS_H
90223+
90224+/* Begin grsecurity status declarations */
90225+
90226+enum {
90227+ GR_READY = 0x01,
90228+ GR_STATUS_INIT = 0x00 // disabled state
90229+};
90230+
90231+/* Begin ACL declarations */
90232+
90233+/* Role flags */
90234+
90235+enum {
90236+ GR_ROLE_USER = 0x0001,
90237+ GR_ROLE_GROUP = 0x0002,
90238+ GR_ROLE_DEFAULT = 0x0004,
90239+ GR_ROLE_SPECIAL = 0x0008,
90240+ GR_ROLE_AUTH = 0x0010,
90241+ GR_ROLE_NOPW = 0x0020,
90242+ GR_ROLE_GOD = 0x0040,
90243+ GR_ROLE_LEARN = 0x0080,
90244+ GR_ROLE_TPE = 0x0100,
90245+ GR_ROLE_DOMAIN = 0x0200,
90246+ GR_ROLE_PAM = 0x0400,
90247+ GR_ROLE_PERSIST = 0x0800
90248+};
90249+
90250+/* ACL Subject and Object mode flags */
90251+enum {
90252+ GR_DELETED = 0x80000000
90253+};
90254+
90255+/* ACL Object-only mode flags */
90256+enum {
90257+ GR_READ = 0x00000001,
90258+ GR_APPEND = 0x00000002,
90259+ GR_WRITE = 0x00000004,
90260+ GR_EXEC = 0x00000008,
90261+ GR_FIND = 0x00000010,
90262+ GR_INHERIT = 0x00000020,
90263+ GR_SETID = 0x00000040,
90264+ GR_CREATE = 0x00000080,
90265+ GR_DELETE = 0x00000100,
90266+ GR_LINK = 0x00000200,
90267+ GR_AUDIT_READ = 0x00000400,
90268+ GR_AUDIT_APPEND = 0x00000800,
90269+ GR_AUDIT_WRITE = 0x00001000,
90270+ GR_AUDIT_EXEC = 0x00002000,
90271+ GR_AUDIT_FIND = 0x00004000,
90272+ GR_AUDIT_INHERIT= 0x00008000,
90273+ GR_AUDIT_SETID = 0x00010000,
90274+ GR_AUDIT_CREATE = 0x00020000,
90275+ GR_AUDIT_DELETE = 0x00040000,
90276+ GR_AUDIT_LINK = 0x00080000,
90277+ GR_PTRACERD = 0x00100000,
90278+ GR_NOPTRACE = 0x00200000,
90279+ GR_SUPPRESS = 0x00400000,
90280+ GR_NOLEARN = 0x00800000,
90281+ GR_INIT_TRANSFER= 0x01000000
90282+};
90283+
90284+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
90285+ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
90286+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
90287+
90288+/* ACL subject-only mode flags */
90289+enum {
90290+ GR_KILL = 0x00000001,
90291+ GR_VIEW = 0x00000002,
90292+ GR_PROTECTED = 0x00000004,
90293+ GR_LEARN = 0x00000008,
90294+ GR_OVERRIDE = 0x00000010,
90295+ /* just a placeholder, this mode is only used in userspace */
90296+ GR_DUMMY = 0x00000020,
90297+ GR_PROTSHM = 0x00000040,
90298+ GR_KILLPROC = 0x00000080,
90299+ GR_KILLIPPROC = 0x00000100,
90300+ /* just a placeholder, this mode is only used in userspace */
90301+ GR_NOTROJAN = 0x00000200,
90302+ GR_PROTPROCFD = 0x00000400,
90303+ GR_PROCACCT = 0x00000800,
90304+ GR_RELAXPTRACE = 0x00001000,
90305+ //GR_NESTED = 0x00002000,
90306+ GR_INHERITLEARN = 0x00004000,
90307+ GR_PROCFIND = 0x00008000,
90308+ GR_POVERRIDE = 0x00010000,
90309+ GR_KERNELAUTH = 0x00020000,
90310+ GR_ATSECURE = 0x00040000,
90311+ GR_SHMEXEC = 0x00080000
90312+};
90313+
90314+enum {
90315+ GR_PAX_ENABLE_SEGMEXEC = 0x0001,
90316+ GR_PAX_ENABLE_PAGEEXEC = 0x0002,
90317+ GR_PAX_ENABLE_MPROTECT = 0x0004,
90318+ GR_PAX_ENABLE_RANDMMAP = 0x0008,
90319+ GR_PAX_ENABLE_EMUTRAMP = 0x0010,
90320+ GR_PAX_DISABLE_SEGMEXEC = 0x0100,
90321+ GR_PAX_DISABLE_PAGEEXEC = 0x0200,
90322+ GR_PAX_DISABLE_MPROTECT = 0x0400,
90323+ GR_PAX_DISABLE_RANDMMAP = 0x0800,
90324+ GR_PAX_DISABLE_EMUTRAMP = 0x1000,
90325+};
90326+
90327+enum {
90328+ GR_ID_USER = 0x01,
90329+ GR_ID_GROUP = 0x02,
90330+};
90331+
90332+enum {
90333+ GR_ID_ALLOW = 0x01,
90334+ GR_ID_DENY = 0x02,
90335+};
90336+
90337+#define GR_CRASH_RES 31
90338+#define GR_UIDTABLE_MAX 500
90339+
90340+/* begin resource learning section */
90341+enum {
90342+ GR_RLIM_CPU_BUMP = 60,
90343+ GR_RLIM_FSIZE_BUMP = 50000,
90344+ GR_RLIM_DATA_BUMP = 10000,
90345+ GR_RLIM_STACK_BUMP = 1000,
90346+ GR_RLIM_CORE_BUMP = 10000,
90347+ GR_RLIM_RSS_BUMP = 500000,
90348+ GR_RLIM_NPROC_BUMP = 1,
90349+ GR_RLIM_NOFILE_BUMP = 5,
90350+ GR_RLIM_MEMLOCK_BUMP = 50000,
90351+ GR_RLIM_AS_BUMP = 500000,
90352+ GR_RLIM_LOCKS_BUMP = 2,
90353+ GR_RLIM_SIGPENDING_BUMP = 5,
90354+ GR_RLIM_MSGQUEUE_BUMP = 10000,
90355+ GR_RLIM_NICE_BUMP = 1,
90356+ GR_RLIM_RTPRIO_BUMP = 1,
90357+ GR_RLIM_RTTIME_BUMP = 1000000
90358+};
90359+
90360+#endif
90361diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
90362new file mode 100644
90363index 0000000..fb1de5d
90364--- /dev/null
90365+++ b/include/linux/grinternal.h
90366@@ -0,0 +1,230 @@
90367+#ifndef __GRINTERNAL_H
90368+#define __GRINTERNAL_H
90369+
90370+#ifdef CONFIG_GRKERNSEC
90371+
90372+#include <linux/fs.h>
90373+#include <linux/mnt_namespace.h>
90374+#include <linux/nsproxy.h>
90375+#include <linux/gracl.h>
90376+#include <linux/grdefs.h>
90377+#include <linux/grmsg.h>
90378+
90379+void gr_add_learn_entry(const char *fmt, ...)
90380+ __attribute__ ((format (printf, 1, 2)));
90381+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
90382+ const struct vfsmount *mnt);
90383+__u32 gr_check_create(const struct dentry *new_dentry,
90384+ const struct dentry *parent,
90385+ const struct vfsmount *mnt, const __u32 mode);
90386+int gr_check_protected_task(const struct task_struct *task);
90387+__u32 to_gr_audit(const __u32 reqmode);
90388+int gr_set_acls(const int type);
90389+int gr_acl_is_enabled(void);
90390+char gr_roletype_to_char(void);
90391+
90392+void gr_handle_alertkill(struct task_struct *task);
90393+char *gr_to_filename(const struct dentry *dentry,
90394+ const struct vfsmount *mnt);
90395+char *gr_to_filename1(const struct dentry *dentry,
90396+ const struct vfsmount *mnt);
90397+char *gr_to_filename2(const struct dentry *dentry,
90398+ const struct vfsmount *mnt);
90399+char *gr_to_filename3(const struct dentry *dentry,
90400+ const struct vfsmount *mnt);
90401+
90402+extern int grsec_enable_ptrace_readexec;
90403+extern int grsec_enable_harden_ptrace;
90404+extern int grsec_enable_link;
90405+extern int grsec_enable_fifo;
90406+extern int grsec_enable_execve;
90407+extern int grsec_enable_shm;
90408+extern int grsec_enable_execlog;
90409+extern int grsec_enable_signal;
90410+extern int grsec_enable_audit_ptrace;
90411+extern int grsec_enable_forkfail;
90412+extern int grsec_enable_time;
90413+extern int grsec_enable_rofs;
90414+extern int grsec_deny_new_usb;
90415+extern int grsec_enable_chroot_shmat;
90416+extern int grsec_enable_chroot_mount;
90417+extern int grsec_enable_chroot_double;
90418+extern int grsec_enable_chroot_pivot;
90419+extern int grsec_enable_chroot_chdir;
90420+extern int grsec_enable_chroot_chmod;
90421+extern int grsec_enable_chroot_mknod;
90422+extern int grsec_enable_chroot_fchdir;
90423+extern int grsec_enable_chroot_nice;
90424+extern int grsec_enable_chroot_execlog;
90425+extern int grsec_enable_chroot_caps;
90426+extern int grsec_enable_chroot_rename;
90427+extern int grsec_enable_chroot_sysctl;
90428+extern int grsec_enable_chroot_unix;
90429+extern int grsec_enable_symlinkown;
90430+extern kgid_t grsec_symlinkown_gid;
90431+extern int grsec_enable_tpe;
90432+extern kgid_t grsec_tpe_gid;
90433+extern int grsec_enable_tpe_all;
90434+extern int grsec_enable_tpe_invert;
90435+extern int grsec_enable_socket_all;
90436+extern kgid_t grsec_socket_all_gid;
90437+extern int grsec_enable_socket_client;
90438+extern kgid_t grsec_socket_client_gid;
90439+extern int grsec_enable_socket_server;
90440+extern kgid_t grsec_socket_server_gid;
90441+extern kgid_t grsec_audit_gid;
90442+extern int grsec_enable_group;
90443+extern int grsec_enable_log_rwxmaps;
90444+extern int grsec_enable_mount;
90445+extern int grsec_enable_chdir;
90446+extern int grsec_resource_logging;
90447+extern int grsec_enable_blackhole;
90448+extern int grsec_lastack_retries;
90449+extern int grsec_enable_brute;
90450+extern int grsec_enable_harden_ipc;
90451+extern int grsec_lock;
90452+
90453+extern spinlock_t grsec_alert_lock;
90454+extern unsigned long grsec_alert_wtime;
90455+extern unsigned long grsec_alert_fyet;
90456+
90457+extern spinlock_t grsec_audit_lock;
90458+
90459+extern rwlock_t grsec_exec_file_lock;
90460+
90461+#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
90462+ gr_to_filename2((tsk)->exec_file->f_path.dentry, \
90463+ (tsk)->exec_file->f_path.mnt) : "/")
90464+
90465+#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
90466+ gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
90467+ (tsk)->real_parent->exec_file->f_path.mnt) : "/")
90468+
90469+#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
90470+ gr_to_filename((tsk)->exec_file->f_path.dentry, \
90471+ (tsk)->exec_file->f_path.mnt) : "/")
90472+
90473+#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
90474+ gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
90475+ (tsk)->real_parent->exec_file->f_path.mnt) : "/")
90476+
90477+#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted)
90478+
90479+#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
90480+
90481+static inline bool gr_is_same_file(const struct file *file1, const struct file *file2)
90482+{
90483+ if (file1 && file2) {
90484+ const struct inode *inode1 = file1->f_path.dentry->d_inode;
90485+ const struct inode *inode2 = file2->f_path.dentry->d_inode;
90486+ if (inode1->i_ino == inode2->i_ino && inode1->i_sb->s_dev == inode2->i_sb->s_dev)
90487+ return true;
90488+ }
90489+
90490+ return false;
90491+}
90492+
90493+#define GR_CHROOT_CAPS {{ \
90494+ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
90495+ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
90496+ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
90497+ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
90498+ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
90499+ CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
90500+ CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
90501+
90502+#define security_learn(normal_msg,args...) \
90503+({ \
90504+ read_lock(&grsec_exec_file_lock); \
90505+ gr_add_learn_entry(normal_msg "\n", ## args); \
90506+ read_unlock(&grsec_exec_file_lock); \
90507+})
90508+
90509+enum {
90510+ GR_DO_AUDIT,
90511+ GR_DONT_AUDIT,
90512+ /* used for non-audit messages that we shouldn't kill the task on */
90513+ GR_DONT_AUDIT_GOOD
90514+};
90515+
90516+enum {
90517+ GR_TTYSNIFF,
90518+ GR_RBAC,
90519+ GR_RBAC_STR,
90520+ GR_STR_RBAC,
90521+ GR_RBAC_MODE2,
90522+ GR_RBAC_MODE3,
90523+ GR_FILENAME,
90524+ GR_SYSCTL_HIDDEN,
90525+ GR_NOARGS,
90526+ GR_ONE_INT,
90527+ GR_ONE_INT_TWO_STR,
90528+ GR_ONE_STR,
90529+ GR_STR_INT,
90530+ GR_TWO_STR_INT,
90531+ GR_TWO_INT,
90532+ GR_TWO_U64,
90533+ GR_THREE_INT,
90534+ GR_FIVE_INT_TWO_STR,
90535+ GR_TWO_STR,
90536+ GR_THREE_STR,
90537+ GR_FOUR_STR,
90538+ GR_STR_FILENAME,
90539+ GR_FILENAME_STR,
90540+ GR_FILENAME_TWO_INT,
90541+ GR_FILENAME_TWO_INT_STR,
90542+ GR_TEXTREL,
90543+ GR_PTRACE,
90544+ GR_RESOURCE,
90545+ GR_CAP,
90546+ GR_SIG,
90547+ GR_SIG2,
90548+ GR_CRASH1,
90549+ GR_CRASH2,
90550+ GR_PSACCT,
90551+ GR_RWXMAP,
90552+ GR_RWXMAPVMA
90553+};
90554+
90555+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
90556+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
90557+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
90558+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
90559+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
90560+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
90561+#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)
90562+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
90563+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
90564+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
90565+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
90566+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
90567+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
90568+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
90569+#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
90570+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
90571+#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)
90572+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
90573+#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
90574+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
90575+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
90576+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
90577+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
90578+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
90579+#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)
90580+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
90581+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
90582+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
90583+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
90584+#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
90585+#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
90586+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
90587+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
90588+#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)
90589+#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
90590+#define gr_log_rwxmap_vma(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAPVMA, str)
90591+
90592+void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
90593+
90594+#endif
90595+
90596+#endif
90597diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
90598new file mode 100644
90599index 0000000..26ef560
90600--- /dev/null
90601+++ b/include/linux/grmsg.h
90602@@ -0,0 +1,118 @@
90603+#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"
90604+#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"
90605+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
90606+#define GR_STOPMOD_MSG "denied modification of module state by "
90607+#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
90608+#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
90609+#define GR_IOPERM_MSG "denied use of ioperm() by "
90610+#define GR_IOPL_MSG "denied use of iopl() by "
90611+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
90612+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
90613+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
90614+#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
90615+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
90616+#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"
90617+#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"
90618+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
90619+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
90620+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
90621+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
90622+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
90623+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
90624+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
90625+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
90626+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
90627+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
90628+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
90629+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
90630+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
90631+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
90632+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
90633+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
90634+#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
90635+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
90636+#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
90637+#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
90638+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
90639+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
90640+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
90641+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
90642+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
90643+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
90644+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
90645+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
90646+#define GR_CHROOT_RENAME_MSG "denied bad rename of %.950s out of a chroot by "
90647+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
90648+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
90649+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
90650+#define GR_CHROOT_FHANDLE_MSG "denied use of file handles inside chroot by "
90651+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
90652+#define GR_SETXATTR_ACL_MSG "%s setting extended attribute of %.950s by "
90653+#define GR_REMOVEXATTR_ACL_MSG "%s removing extended attribute of %.950s by "
90654+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
90655+#define GR_INITF_ACL_MSG "init_variables() failed %s by "
90656+#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"
90657+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
90658+#define GR_SHUTS_ACL_MSG "shutdown auth success for "
90659+#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
90660+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
90661+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
90662+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
90663+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
90664+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
90665+#define GR_ENABLEF_ACL_MSG "unable to load %s for "
90666+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
90667+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
90668+#define GR_RELOADF_ACL_MSG "failed reload of %s for "
90669+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
90670+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
90671+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
90672+#define GR_SPROLEF_ACL_MSG "special role %s failure for "
90673+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
90674+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
90675+#define GR_INVMODE_ACL_MSG "invalid mode %d by "
90676+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
90677+#define GR_FAILFORK_MSG "failed fork with errno %s by "
90678+#define GR_NICE_CHROOT_MSG "denied priority change by "
90679+#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
90680+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
90681+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
90682+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
90683+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
90684+#define GR_TIME_MSG "time set by "
90685+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
90686+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
90687+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
90688+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
90689+#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
90690+#define GR_BIND_MSG "denied bind() by "
90691+#define GR_CONNECT_MSG "denied connect() by "
90692+#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
90693+#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
90694+#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"
90695+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
90696+#define GR_CAP_ACL_MSG "use of %s denied for "
90697+#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
90698+#define GR_CAP_ACL_MSG2 "use of %s permitted for "
90699+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
90700+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
90701+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
90702+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
90703+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
90704+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
90705+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
90706+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
90707+#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
90708+#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
90709+#define GR_TEXTREL_AUDIT_MSG "denied text relocation in %.950s, VMA:0x%08lx 0x%08lx by "
90710+#define GR_PTGNUSTACK_MSG "denied marking stack executable as requested by PT_GNU_STACK marking in %.950s by "
90711+#define GR_VM86_MSG "denied use of vm86 by "
90712+#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
90713+#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
90714+#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
90715+#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
90716+#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
90717+#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 "
90718+#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 "
90719+#define GR_IPC_DENIED_MSG "denied %s of overly-permissive IPC object with creator uid %u by "
90720+#define GR_MSRWRITE_MSG "denied write to CPU MSR by "
90721diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
90722new file mode 100644
90723index 0000000..63c1850
90724--- /dev/null
90725+++ b/include/linux/grsecurity.h
90726@@ -0,0 +1,250 @@
90727+#ifndef GR_SECURITY_H
90728+#define GR_SECURITY_H
90729+#include <linux/fs.h>
90730+#include <linux/fs_struct.h>
90731+#include <linux/binfmts.h>
90732+#include <linux/gracl.h>
90733+
90734+/* notify of brain-dead configs */
90735+#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
90736+#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
90737+#endif
90738+#if defined(CONFIG_GRKERNSEC_PROC) && !defined(CONFIG_GRKERNSEC_PROC_USER) && !defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
90739+#error "CONFIG_GRKERNSEC_PROC enabled, but neither CONFIG_GRKERNSEC_PROC_USER nor CONFIG_GRKERNSEC_PROC_USERGROUP enabled"
90740+#endif
90741+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
90742+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
90743+#endif
90744+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
90745+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
90746+#endif
90747+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
90748+#error "CONFIG_PAX enabled, but no PaX options are enabled."
90749+#endif
90750+
90751+int gr_handle_new_usb(void);
90752+
90753+void gr_handle_brute_attach(int dumpable);
90754+void gr_handle_brute_check(void);
90755+void gr_handle_kernel_exploit(void);
90756+
90757+char gr_roletype_to_char(void);
90758+
90759+int gr_proc_is_restricted(void);
90760+
90761+int gr_acl_enable_at_secure(void);
90762+
90763+int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
90764+int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
90765+
90766+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap);
90767+
90768+void gr_del_task_from_ip_table(struct task_struct *p);
90769+
90770+int gr_pid_is_chrooted(struct task_struct *p);
90771+int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
90772+int gr_handle_chroot_nice(void);
90773+int gr_handle_chroot_sysctl(const int op);
90774+int gr_handle_chroot_setpriority(struct task_struct *p,
90775+ const int niceval);
90776+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
90777+int gr_chroot_fhandle(void);
90778+int gr_handle_chroot_chroot(const struct dentry *dentry,
90779+ const struct vfsmount *mnt);
90780+void gr_handle_chroot_chdir(const struct path *path);
90781+int gr_handle_chroot_chmod(const struct dentry *dentry,
90782+ const struct vfsmount *mnt, const int mode);
90783+int gr_handle_chroot_mknod(const struct dentry *dentry,
90784+ const struct vfsmount *mnt, const int mode);
90785+int gr_handle_chroot_mount(const struct dentry *dentry,
90786+ const struct vfsmount *mnt,
90787+ const char *dev_name);
90788+int gr_handle_chroot_pivot(void);
90789+int gr_handle_chroot_unix(const pid_t pid);
90790+
90791+int gr_handle_rawio(const struct inode *inode);
90792+
90793+void gr_handle_ioperm(void);
90794+void gr_handle_iopl(void);
90795+void gr_handle_msr_write(void);
90796+
90797+umode_t gr_acl_umask(void);
90798+
90799+int gr_tpe_allow(const struct file *file);
90800+
90801+void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
90802+void gr_clear_chroot_entries(struct task_struct *task);
90803+
90804+void gr_log_forkfail(const int retval);
90805+void gr_log_timechange(void);
90806+void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
90807+void gr_log_chdir(const struct dentry *dentry,
90808+ const struct vfsmount *mnt);
90809+void gr_log_chroot_exec(const struct dentry *dentry,
90810+ const struct vfsmount *mnt);
90811+void gr_log_remount(const char *devname, const int retval);
90812+void gr_log_unmount(const char *devname, const int retval);
90813+void gr_log_mount(const char *from, struct path *to, const int retval);
90814+void gr_log_textrel(struct vm_area_struct *vma);
90815+void gr_log_ptgnustack(struct file *file);
90816+void gr_log_rwxmmap(struct file *file);
90817+void gr_log_rwxmprotect(struct vm_area_struct *vma);
90818+
90819+int gr_handle_follow_link(const struct inode *parent,
90820+ const struct inode *inode,
90821+ const struct dentry *dentry,
90822+ const struct vfsmount *mnt);
90823+int gr_handle_fifo(const struct dentry *dentry,
90824+ const struct vfsmount *mnt,
90825+ const struct dentry *dir, const int flag,
90826+ const int acc_mode);
90827+int gr_handle_hardlink(const struct dentry *dentry,
90828+ const struct vfsmount *mnt,
90829+ struct inode *inode,
90830+ const int mode, const struct filename *to);
90831+
90832+int gr_is_capable(const int cap);
90833+int gr_is_capable_nolog(const int cap);
90834+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
90835+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
90836+
90837+void gr_copy_label(struct task_struct *tsk);
90838+void gr_handle_crash(struct task_struct *task, const int sig);
90839+int gr_handle_signal(const struct task_struct *p, const int sig);
90840+int gr_check_crash_uid(const kuid_t uid);
90841+int gr_check_protected_task(const struct task_struct *task);
90842+int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
90843+int gr_acl_handle_mmap(const struct file *file,
90844+ const unsigned long prot);
90845+int gr_acl_handle_mprotect(const struct file *file,
90846+ const unsigned long prot);
90847+int gr_check_hidden_task(const struct task_struct *tsk);
90848+__u32 gr_acl_handle_truncate(const struct dentry *dentry,
90849+ const struct vfsmount *mnt);
90850+__u32 gr_acl_handle_utime(const struct dentry *dentry,
90851+ const struct vfsmount *mnt);
90852+__u32 gr_acl_handle_access(const struct dentry *dentry,
90853+ const struct vfsmount *mnt, const int fmode);
90854+__u32 gr_acl_handle_chmod(const struct dentry *dentry,
90855+ const struct vfsmount *mnt, umode_t *mode);
90856+__u32 gr_acl_handle_chown(const struct dentry *dentry,
90857+ const struct vfsmount *mnt);
90858+__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
90859+ const struct vfsmount *mnt);
90860+__u32 gr_acl_handle_removexattr(const struct dentry *dentry,
90861+ const struct vfsmount *mnt);
90862+int gr_handle_ptrace(struct task_struct *task, const long request);
90863+int gr_handle_proc_ptrace(struct task_struct *task);
90864+__u32 gr_acl_handle_execve(const struct dentry *dentry,
90865+ const struct vfsmount *mnt);
90866+int gr_check_crash_exec(const struct file *filp);
90867+int gr_acl_is_enabled(void);
90868+void gr_set_role_label(struct task_struct *task, const kuid_t uid,
90869+ const kgid_t gid);
90870+int gr_set_proc_label(const struct dentry *dentry,
90871+ const struct vfsmount *mnt,
90872+ const int unsafe_flags);
90873+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
90874+ const struct vfsmount *mnt);
90875+__u32 gr_acl_handle_open(const struct dentry *dentry,
90876+ const struct vfsmount *mnt, int acc_mode);
90877+__u32 gr_acl_handle_creat(const struct dentry *dentry,
90878+ const struct dentry *p_dentry,
90879+ const struct vfsmount *p_mnt,
90880+ int open_flags, int acc_mode, const int imode);
90881+void gr_handle_create(const struct dentry *dentry,
90882+ const struct vfsmount *mnt);
90883+void gr_handle_proc_create(const struct dentry *dentry,
90884+ const struct inode *inode);
90885+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
90886+ const struct dentry *parent_dentry,
90887+ const struct vfsmount *parent_mnt,
90888+ const int mode);
90889+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
90890+ const struct dentry *parent_dentry,
90891+ const struct vfsmount *parent_mnt);
90892+__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
90893+ const struct vfsmount *mnt);
90894+void gr_handle_delete(const u64 ino, const dev_t dev);
90895+__u32 gr_acl_handle_unlink(const struct dentry *dentry,
90896+ const struct vfsmount *mnt);
90897+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
90898+ const struct dentry *parent_dentry,
90899+ const struct vfsmount *parent_mnt,
90900+ const struct filename *from);
90901+__u32 gr_acl_handle_link(const struct dentry *new_dentry,
90902+ const struct dentry *parent_dentry,
90903+ const struct vfsmount *parent_mnt,
90904+ const struct dentry *old_dentry,
90905+ const struct vfsmount *old_mnt, const struct filename *to);
90906+int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
90907+int gr_acl_handle_rename(struct dentry *new_dentry,
90908+ struct dentry *parent_dentry,
90909+ const struct vfsmount *parent_mnt,
90910+ struct dentry *old_dentry,
90911+ struct inode *old_parent_inode,
90912+ struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags);
90913+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
90914+ struct dentry *old_dentry,
90915+ struct dentry *new_dentry,
90916+ struct vfsmount *mnt, const __u8 replace, unsigned int flags);
90917+__u32 gr_check_link(const struct dentry *new_dentry,
90918+ const struct dentry *parent_dentry,
90919+ const struct vfsmount *parent_mnt,
90920+ const struct dentry *old_dentry,
90921+ const struct vfsmount *old_mnt);
90922+int gr_acl_handle_filldir(const struct file *file, const char *name,
90923+ const unsigned int namelen, const u64 ino);
90924+
90925+__u32 gr_acl_handle_unix(const struct dentry *dentry,
90926+ const struct vfsmount *mnt);
90927+void gr_acl_handle_exit(void);
90928+void gr_acl_handle_psacct(struct task_struct *task, const long code);
90929+int gr_acl_handle_procpidmem(const struct task_struct *task);
90930+int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
90931+int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
90932+void gr_audit_ptrace(struct task_struct *task);
90933+dev_t gr_get_dev_from_dentry(struct dentry *dentry);
90934+u64 gr_get_ino_from_dentry(struct dentry *dentry);
90935+void gr_put_exec_file(struct task_struct *task);
90936+
90937+int gr_ptrace_readexec(struct file *file, int unsafe_flags);
90938+
90939+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
90940+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
90941+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
90942+ struct dentry *newdentry, struct vfsmount *newmnt);
90943+
90944+#ifdef CONFIG_GRKERNSEC_RESLOG
90945+extern void gr_log_resource(const struct task_struct *task, const int res,
90946+ const unsigned long wanted, const int gt);
90947+#else
90948+static inline void gr_log_resource(const struct task_struct *task, const int res,
90949+ const unsigned long wanted, const int gt)
90950+{
90951+}
90952+#endif
90953+
90954+#ifdef CONFIG_GRKERNSEC
90955+void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
90956+void gr_handle_vm86(void);
90957+void gr_handle_mem_readwrite(u64 from, u64 to);
90958+
90959+void gr_log_badprocpid(const char *entry);
90960+
90961+extern int grsec_enable_dmesg;
90962+extern int grsec_disable_privio;
90963+
90964+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
90965+extern kgid_t grsec_proc_gid;
90966+#endif
90967+
90968+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
90969+extern int grsec_enable_chroot_findtask;
90970+#endif
90971+#ifdef CONFIG_GRKERNSEC_SETXID
90972+extern int grsec_enable_setxid;
90973+#endif
90974+#endif
90975+
90976+#endif
90977diff --git a/include/linux/grsock.h b/include/linux/grsock.h
90978new file mode 100644
90979index 0000000..e7ffaaf
90980--- /dev/null
90981+++ b/include/linux/grsock.h
90982@@ -0,0 +1,19 @@
90983+#ifndef __GRSOCK_H
90984+#define __GRSOCK_H
90985+
90986+extern void gr_attach_curr_ip(const struct sock *sk);
90987+extern int gr_handle_sock_all(const int family, const int type,
90988+ const int protocol);
90989+extern int gr_handle_sock_server(const struct sockaddr *sck);
90990+extern int gr_handle_sock_server_other(const struct sock *sck);
90991+extern int gr_handle_sock_client(const struct sockaddr *sck);
90992+extern int gr_search_connect(struct socket * sock,
90993+ struct sockaddr_in * addr);
90994+extern int gr_search_bind(struct socket * sock,
90995+ struct sockaddr_in * addr);
90996+extern int gr_search_listen(struct socket * sock);
90997+extern int gr_search_accept(struct socket * sock);
90998+extern int gr_search_socket(const int domain, const int type,
90999+ const int protocol);
91000+
91001+#endif
91002diff --git a/include/linux/highmem.h b/include/linux/highmem.h
91003index 9286a46..373f27f 100644
91004--- a/include/linux/highmem.h
91005+++ b/include/linux/highmem.h
91006@@ -189,6 +189,18 @@ static inline void clear_highpage(struct page *page)
91007 kunmap_atomic(kaddr);
91008 }
91009
91010+static inline void sanitize_highpage(struct page *page)
91011+{
91012+ void *kaddr;
91013+ unsigned long flags;
91014+
91015+ local_irq_save(flags);
91016+ kaddr = kmap_atomic(page);
91017+ clear_page(kaddr);
91018+ kunmap_atomic(kaddr);
91019+ local_irq_restore(flags);
91020+}
91021+
91022 static inline void zero_user_segments(struct page *page,
91023 unsigned start1, unsigned end1,
91024 unsigned start2, unsigned end2)
91025diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
91026index 1c7b89a..7dda400 100644
91027--- a/include/linux/hwmon-sysfs.h
91028+++ b/include/linux/hwmon-sysfs.h
91029@@ -25,7 +25,8 @@
91030 struct sensor_device_attribute{
91031 struct device_attribute dev_attr;
91032 int index;
91033-};
91034+} __do_const;
91035+typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
91036 #define to_sensor_dev_attr(_dev_attr) \
91037 container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
91038
91039@@ -41,7 +42,8 @@ struct sensor_device_attribute_2 {
91040 struct device_attribute dev_attr;
91041 u8 index;
91042 u8 nr;
91043-};
91044+} __do_const;
91045+typedef struct sensor_device_attribute_2 __no_const sensor_device_attribute_2_no_const;
91046 #define to_sensor_dev_attr_2(_dev_attr) \
91047 container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
91048
91049diff --git a/include/linux/i2c.h b/include/linux/i2c.h
91050index f17da50..2f8b203 100644
91051--- a/include/linux/i2c.h
91052+++ b/include/linux/i2c.h
91053@@ -409,6 +409,7 @@ struct i2c_algorithm {
91054 int (*unreg_slave)(struct i2c_client *client);
91055 #endif
91056 };
91057+typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
91058
91059 /**
91060 * struct i2c_bus_recovery_info - I2C bus recovery information
91061diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
91062index aff7ad8..3942bbd 100644
91063--- a/include/linux/if_pppox.h
91064+++ b/include/linux/if_pppox.h
91065@@ -76,7 +76,7 @@ struct pppox_proto {
91066 int (*ioctl)(struct socket *sock, unsigned int cmd,
91067 unsigned long arg);
91068 struct module *owner;
91069-};
91070+} __do_const;
91071
91072 extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
91073 extern void unregister_pppox_proto(int proto_num);
91074diff --git a/include/linux/init.h b/include/linux/init.h
91075index 2df8e8d..3e1280d 100644
91076--- a/include/linux/init.h
91077+++ b/include/linux/init.h
91078@@ -37,9 +37,17 @@
91079 * section.
91080 */
91081
91082+#define add_init_latent_entropy __latent_entropy
91083+
91084+#ifdef CONFIG_MEMORY_HOTPLUG
91085+#define add_meminit_latent_entropy
91086+#else
91087+#define add_meminit_latent_entropy __latent_entropy
91088+#endif
91089+
91090 /* These are for everybody (although not all archs will actually
91091 discard it in modules) */
91092-#define __init __section(.init.text) __cold notrace
91093+#define __init __section(.init.text) __cold notrace add_init_latent_entropy
91094 #define __initdata __section(.init.data)
91095 #define __initconst __constsection(.init.rodata)
91096 #define __exitdata __section(.exit.data)
91097@@ -100,7 +108,7 @@
91098 #define __cpuexitconst
91099
91100 /* Used for MEMORY_HOTPLUG */
91101-#define __meminit __section(.meminit.text) __cold notrace
91102+#define __meminit __section(.meminit.text) __cold notrace add_meminit_latent_entropy
91103 #define __meminitdata __section(.meminit.data)
91104 #define __meminitconst __constsection(.meminit.rodata)
91105 #define __memexit __section(.memexit.text) __exitused __cold notrace
91106diff --git a/include/linux/init_task.h b/include/linux/init_task.h
91107index 696d223..6d6b39f 100644
91108--- a/include/linux/init_task.h
91109+++ b/include/linux/init_task.h
91110@@ -158,6 +158,12 @@ extern struct task_group root_task_group;
91111
91112 #define INIT_TASK_COMM "swapper"
91113
91114+#ifdef CONFIG_X86
91115+#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
91116+#else
91117+#define INIT_TASK_THREAD_INFO
91118+#endif
91119+
91120 #ifdef CONFIG_RT_MUTEXES
91121 # define INIT_RT_MUTEXES(tsk) \
91122 .pi_waiters = RB_ROOT, \
91123@@ -224,6 +230,7 @@ extern struct task_group root_task_group;
91124 RCU_POINTER_INITIALIZER(cred, &init_cred), \
91125 .comm = INIT_TASK_COMM, \
91126 .thread = INIT_THREAD, \
91127+ INIT_TASK_THREAD_INFO \
91128 .fs = &init_fs, \
91129 .files = &init_files, \
91130 .signal = &init_signals, \
91131diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
91132index 2e88580..f6a99a0 100644
91133--- a/include/linux/interrupt.h
91134+++ b/include/linux/interrupt.h
91135@@ -420,8 +420,8 @@ extern const char * const softirq_to_name[NR_SOFTIRQS];
91136
91137 struct softirq_action
91138 {
91139- void (*action)(struct softirq_action *);
91140-};
91141+ void (*action)(void);
91142+} __no_const;
91143
91144 asmlinkage void do_softirq(void);
91145 asmlinkage void __do_softirq(void);
91146@@ -435,7 +435,7 @@ static inline void do_softirq_own_stack(void)
91147 }
91148 #endif
91149
91150-extern void open_softirq(int nr, void (*action)(struct softirq_action *));
91151+extern void open_softirq(int nr, void (*action)(void));
91152 extern void softirq_init(void);
91153 extern void __raise_softirq_irqoff(unsigned int nr);
91154
91155diff --git a/include/linux/iommu.h b/include/linux/iommu.h
91156index 38daa45..4de4317 100644
91157--- a/include/linux/iommu.h
91158+++ b/include/linux/iommu.h
91159@@ -147,7 +147,7 @@ struct iommu_ops {
91160
91161 unsigned long pgsize_bitmap;
91162 void *priv;
91163-};
91164+} __do_const;
91165
91166 #define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
91167 #define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */
91168diff --git a/include/linux/ioport.h b/include/linux/ioport.h
91169index 2c525022..345b106 100644
91170--- a/include/linux/ioport.h
91171+++ b/include/linux/ioport.h
91172@@ -161,7 +161,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
91173 int adjust_resource(struct resource *res, resource_size_t start,
91174 resource_size_t size);
91175 resource_size_t resource_alignment(struct resource *res);
91176-static inline resource_size_t resource_size(const struct resource *res)
91177+static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
91178 {
91179 return res->end - res->start + 1;
91180 }
91181diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
91182index 1eee6bc..9cf4912 100644
91183--- a/include/linux/ipc_namespace.h
91184+++ b/include/linux/ipc_namespace.h
91185@@ -60,7 +60,7 @@ struct ipc_namespace {
91186 struct user_namespace *user_ns;
91187
91188 struct ns_common ns;
91189-};
91190+} __randomize_layout;
91191
91192 extern struct ipc_namespace init_ipc_ns;
91193 extern atomic_t nr_ipc_ns;
91194diff --git a/include/linux/irq.h b/include/linux/irq.h
91195index d09ec7a..f373eb5 100644
91196--- a/include/linux/irq.h
91197+++ b/include/linux/irq.h
91198@@ -364,7 +364,8 @@ struct irq_chip {
91199 void (*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg);
91200
91201 unsigned long flags;
91202-};
91203+} __do_const;
91204+typedef struct irq_chip __no_const irq_chip_no_const;
91205
91206 /*
91207 * irq_chip specific flags
91208diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
91209index 71d706d..817cdec 100644
91210--- a/include/linux/irqchip/arm-gic.h
91211+++ b/include/linux/irqchip/arm-gic.h
91212@@ -95,7 +95,7 @@
91213
91214 struct device_node;
91215
91216-extern struct irq_chip gic_arch_extn;
91217+extern irq_chip_no_const gic_arch_extn;
91218
91219 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
91220 u32 offset, struct device_node *);
91221diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
91222index dd1109f..4f4fdda 100644
91223--- a/include/linux/irqdesc.h
91224+++ b/include/linux/irqdesc.h
91225@@ -61,7 +61,7 @@ struct irq_desc {
91226 unsigned int irq_count; /* For detecting broken IRQs */
91227 unsigned long last_unhandled; /* Aging timer for unhandled count */
91228 unsigned int irqs_unhandled;
91229- atomic_t threads_handled;
91230+ atomic_unchecked_t threads_handled;
91231 int threads_handled_last;
91232 raw_spinlock_t lock;
91233 struct cpumask *percpu_enabled;
91234diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
91235index 676d730..8d3a1ad 100644
91236--- a/include/linux/irqdomain.h
91237+++ b/include/linux/irqdomain.h
91238@@ -40,6 +40,7 @@ struct device_node;
91239 struct irq_domain;
91240 struct of_device_id;
91241 struct irq_chip;
91242+typedef struct irq_chip __no_const irq_chip_no_const;
91243 struct irq_data;
91244
91245 /* Number of irqs reserved for a legacy isa controller */
91246diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
91247index c367cbd..c9b79e6 100644
91248--- a/include/linux/jiffies.h
91249+++ b/include/linux/jiffies.h
91250@@ -280,20 +280,20 @@ extern unsigned long preset_lpj;
91251 /*
91252 * Convert various time units to each other:
91253 */
91254-extern unsigned int jiffies_to_msecs(const unsigned long j);
91255-extern unsigned int jiffies_to_usecs(const unsigned long j);
91256+extern unsigned int jiffies_to_msecs(const unsigned long j) __intentional_overflow(-1);
91257+extern unsigned int jiffies_to_usecs(const unsigned long j) __intentional_overflow(-1);
91258
91259-static inline u64 jiffies_to_nsecs(const unsigned long j)
91260+static inline u64 __intentional_overflow(-1) jiffies_to_nsecs(const unsigned long j)
91261 {
91262 return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
91263 }
91264
91265-extern unsigned long msecs_to_jiffies(const unsigned int m);
91266-extern unsigned long usecs_to_jiffies(const unsigned int u);
91267+extern unsigned long msecs_to_jiffies(const unsigned int m) __intentional_overflow(-1);
91268+extern unsigned long usecs_to_jiffies(const unsigned int u) __intentional_overflow(-1);
91269 extern unsigned long timespec_to_jiffies(const struct timespec *value);
91270 extern void jiffies_to_timespec(const unsigned long jiffies,
91271- struct timespec *value);
91272-extern unsigned long timeval_to_jiffies(const struct timeval *value);
91273+ struct timespec *value) __intentional_overflow(-1);
91274+extern unsigned long timeval_to_jiffies(const struct timeval *value) __intentional_overflow(-1);
91275 extern void jiffies_to_timeval(const unsigned long jiffies,
91276 struct timeval *value);
91277
91278diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
91279index 6883e19..e854fcb 100644
91280--- a/include/linux/kallsyms.h
91281+++ b/include/linux/kallsyms.h
91282@@ -15,7 +15,8 @@
91283
91284 struct module;
91285
91286-#ifdef CONFIG_KALLSYMS
91287+#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
91288+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
91289 /* Lookup the address for a symbol. Returns 0 if not found. */
91290 unsigned long kallsyms_lookup_name(const char *name);
91291
91292@@ -106,6 +107,21 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
91293 /* Stupid that this does nothing, but I didn't create this mess. */
91294 #define __print_symbol(fmt, addr)
91295 #endif /*CONFIG_KALLSYMS*/
91296+#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or
91297+ arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
91298+extern unsigned long kallsyms_lookup_name(const char *name);
91299+extern void __print_symbol(const char *fmt, unsigned long address);
91300+extern int sprint_backtrace(char *buffer, unsigned long address);
91301+extern int sprint_symbol(char *buffer, unsigned long address);
91302+extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
91303+const char *kallsyms_lookup(unsigned long addr,
91304+ unsigned long *symbolsize,
91305+ unsigned long *offset,
91306+ char **modname, char *namebuf);
91307+extern int kallsyms_lookup_size_offset(unsigned long addr,
91308+ unsigned long *symbolsize,
91309+ unsigned long *offset);
91310+#endif
91311
91312 /* This macro allows us to keep printk typechecking */
91313 static __printf(1, 2)
91314diff --git a/include/linux/kernel.h b/include/linux/kernel.h
91315index d6d630d..feea1f5 100644
91316--- a/include/linux/kernel.h
91317+++ b/include/linux/kernel.h
91318@@ -378,7 +378,7 @@ static inline int __must_check kstrtos32_from_user(const char __user *s, size_t
91319 /* Obsolete, do not use. Use kstrto<foo> instead */
91320
91321 extern unsigned long simple_strtoul(const char *,char **,unsigned int);
91322-extern long simple_strtol(const char *,char **,unsigned int);
91323+extern long simple_strtol(const char *,char **,unsigned int) __intentional_overflow(-1);
91324 extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
91325 extern long long simple_strtoll(const char *,char **,unsigned int);
91326
91327diff --git a/include/linux/key-type.h b/include/linux/key-type.h
91328index ff9f1d3..6712be5 100644
91329--- a/include/linux/key-type.h
91330+++ b/include/linux/key-type.h
91331@@ -152,7 +152,7 @@ struct key_type {
91332 /* internal fields */
91333 struct list_head link; /* link in types list */
91334 struct lock_class_key lock_class; /* key->sem lock class */
91335-};
91336+} __do_const;
91337
91338 extern struct key_type key_type_keyring;
91339
91340diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
91341index e465bb1..19f605fd 100644
91342--- a/include/linux/kgdb.h
91343+++ b/include/linux/kgdb.h
91344@@ -52,7 +52,7 @@ extern int kgdb_connected;
91345 extern int kgdb_io_module_registered;
91346
91347 extern atomic_t kgdb_setting_breakpoint;
91348-extern atomic_t kgdb_cpu_doing_single_step;
91349+extern atomic_unchecked_t kgdb_cpu_doing_single_step;
91350
91351 extern struct task_struct *kgdb_usethread;
91352 extern struct task_struct *kgdb_contthread;
91353@@ -254,7 +254,7 @@ struct kgdb_arch {
91354 void (*correct_hw_break)(void);
91355
91356 void (*enable_nmi)(bool on);
91357-};
91358+} __do_const;
91359
91360 /**
91361 * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
91362@@ -279,7 +279,7 @@ struct kgdb_io {
91363 void (*pre_exception) (void);
91364 void (*post_exception) (void);
91365 int is_console;
91366-};
91367+} __do_const;
91368
91369 extern struct kgdb_arch arch_kgdb_ops;
91370
91371diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h
91372index e705467..a92471d 100644
91373--- a/include/linux/kmemleak.h
91374+++ b/include/linux/kmemleak.h
91375@@ -27,7 +27,7 @@
91376
91377 extern void kmemleak_init(void) __ref;
91378 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
91379- gfp_t gfp) __ref;
91380+ gfp_t gfp) __ref __size_overflow(2);
91381 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size) __ref;
91382 extern void kmemleak_free(const void *ptr) __ref;
91383 extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
91384@@ -62,7 +62,7 @@ static inline void kmemleak_erase(void **ptr)
91385 static inline void kmemleak_init(void)
91386 {
91387 }
91388-static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
91389+static inline void __size_overflow(2) kmemleak_alloc(const void *ptr, size_t size, int min_count,
91390 gfp_t gfp)
91391 {
91392 }
91393diff --git a/include/linux/kmod.h b/include/linux/kmod.h
91394index 0555cc6..40116ce 100644
91395--- a/include/linux/kmod.h
91396+++ b/include/linux/kmod.h
91397@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
91398 * usually useless though. */
91399 extern __printf(2, 3)
91400 int __request_module(bool wait, const char *name, ...);
91401+extern __printf(3, 4)
91402+int ___request_module(bool wait, char *param_name, const char *name, ...);
91403 #define request_module(mod...) __request_module(true, mod)
91404 #define request_module_nowait(mod...) __request_module(false, mod)
91405 #define try_then_request_module(x, mod...) \
91406@@ -57,6 +59,9 @@ struct subprocess_info {
91407 struct work_struct work;
91408 struct completion *complete;
91409 char *path;
91410+#ifdef CONFIG_GRKERNSEC
91411+ char *origpath;
91412+#endif
91413 char **argv;
91414 char **envp;
91415 int wait;
91416diff --git a/include/linux/kobject.h b/include/linux/kobject.h
91417index 2d61b90..a1d0a13 100644
91418--- a/include/linux/kobject.h
91419+++ b/include/linux/kobject.h
91420@@ -118,7 +118,7 @@ struct kobj_type {
91421 struct attribute **default_attrs;
91422 const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
91423 const void *(*namespace)(struct kobject *kobj);
91424-};
91425+} __do_const;
91426
91427 struct kobj_uevent_env {
91428 char *argv[3];
91429@@ -142,6 +142,7 @@ struct kobj_attribute {
91430 ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
91431 const char *buf, size_t count);
91432 };
91433+typedef struct kobj_attribute __no_const kobj_attribute_no_const;
91434
91435 extern const struct sysfs_ops kobj_sysfs_ops;
91436
91437@@ -169,7 +170,7 @@ struct kset {
91438 spinlock_t list_lock;
91439 struct kobject kobj;
91440 const struct kset_uevent_ops *uevent_ops;
91441-};
91442+} __randomize_layout;
91443
91444 extern void kset_init(struct kset *kset);
91445 extern int __must_check kset_register(struct kset *kset);
91446diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
91447index df32d25..fb52e27 100644
91448--- a/include/linux/kobject_ns.h
91449+++ b/include/linux/kobject_ns.h
91450@@ -44,7 +44,7 @@ struct kobj_ns_type_operations {
91451 const void *(*netlink_ns)(struct sock *sk);
91452 const void *(*initial_ns)(void);
91453 void (*drop_ns)(void *);
91454-};
91455+} __do_const;
91456
91457 int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
91458 int kobj_ns_type_registered(enum kobj_ns_type type);
91459diff --git a/include/linux/kref.h b/include/linux/kref.h
91460index 484604d..0f6c5b6 100644
91461--- a/include/linux/kref.h
91462+++ b/include/linux/kref.h
91463@@ -68,7 +68,7 @@ static inline void kref_get(struct kref *kref)
91464 static inline int kref_sub(struct kref *kref, unsigned int count,
91465 void (*release)(struct kref *kref))
91466 {
91467- WARN_ON(release == NULL);
91468+ BUG_ON(release == NULL);
91469
91470 if (atomic_sub_and_test((int) count, &kref->refcount)) {
91471 release(kref);
91472diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
91473index d12b210..d91fd76 100644
91474--- a/include/linux/kvm_host.h
91475+++ b/include/linux/kvm_host.h
91476@@ -455,7 +455,7 @@ static inline void kvm_irqfd_exit(void)
91477 {
91478 }
91479 #endif
91480-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
91481+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
91482 struct module *module);
91483 void kvm_exit(void);
91484
91485@@ -633,7 +633,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
91486 struct kvm_guest_debug *dbg);
91487 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
91488
91489-int kvm_arch_init(void *opaque);
91490+int kvm_arch_init(const void *opaque);
91491 void kvm_arch_exit(void);
91492
91493 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
91494diff --git a/include/linux/libata.h b/include/linux/libata.h
91495index 6b08cc1..248c5e9 100644
91496--- a/include/linux/libata.h
91497+++ b/include/linux/libata.h
91498@@ -980,7 +980,7 @@ struct ata_port_operations {
91499 * fields must be pointers.
91500 */
91501 const struct ata_port_operations *inherits;
91502-};
91503+} __do_const;
91504
91505 struct ata_port_info {
91506 unsigned long flags;
91507diff --git a/include/linux/linkage.h b/include/linux/linkage.h
91508index a6a42dd..6c5ebce 100644
91509--- a/include/linux/linkage.h
91510+++ b/include/linux/linkage.h
91511@@ -36,6 +36,7 @@
91512 #endif
91513
91514 #define __page_aligned_data __section(.data..page_aligned) __aligned(PAGE_SIZE)
91515+#define __page_aligned_rodata __read_only __aligned(PAGE_SIZE)
91516 #define __page_aligned_bss __section(.bss..page_aligned) __aligned(PAGE_SIZE)
91517
91518 /*
91519diff --git a/include/linux/list.h b/include/linux/list.h
91520index feb773c..98f3075 100644
91521--- a/include/linux/list.h
91522+++ b/include/linux/list.h
91523@@ -113,6 +113,19 @@ extern void __list_del_entry(struct list_head *entry);
91524 extern void list_del(struct list_head *entry);
91525 #endif
91526
91527+extern void __pax_list_add(struct list_head *new,
91528+ struct list_head *prev,
91529+ struct list_head *next);
91530+static inline void pax_list_add(struct list_head *new, struct list_head *head)
91531+{
91532+ __pax_list_add(new, head, head->next);
91533+}
91534+static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
91535+{
91536+ __pax_list_add(new, head->prev, head);
91537+}
91538+extern void pax_list_del(struct list_head *entry);
91539+
91540 /**
91541 * list_replace - replace old entry by new one
91542 * @old : the element to be replaced
91543@@ -146,6 +159,8 @@ static inline void list_del_init(struct list_head *entry)
91544 INIT_LIST_HEAD(entry);
91545 }
91546
91547+extern void pax_list_del_init(struct list_head *entry);
91548+
91549 /**
91550 * list_move - delete from one list and add as another's head
91551 * @list: the entry to move
91552diff --git a/include/linux/lockref.h b/include/linux/lockref.h
91553index b10b122..d37b3de 100644
91554--- a/include/linux/lockref.h
91555+++ b/include/linux/lockref.h
91556@@ -28,7 +28,7 @@ struct lockref {
91557 #endif
91558 struct {
91559 spinlock_t lock;
91560- int count;
91561+ atomic_t count;
91562 };
91563 };
91564 };
91565@@ -43,9 +43,29 @@ extern void lockref_mark_dead(struct lockref *);
91566 extern int lockref_get_not_dead(struct lockref *);
91567
91568 /* Must be called under spinlock for reliable results */
91569-static inline int __lockref_is_dead(const struct lockref *l)
91570+static inline int __lockref_is_dead(const struct lockref *lockref)
91571 {
91572- return ((int)l->count < 0);
91573+ return atomic_read(&lockref->count) < 0;
91574+}
91575+
91576+static inline int __lockref_read(const struct lockref *lockref)
91577+{
91578+ return atomic_read(&lockref->count);
91579+}
91580+
91581+static inline void __lockref_set(struct lockref *lockref, int count)
91582+{
91583+ atomic_set(&lockref->count, count);
91584+}
91585+
91586+static inline void __lockref_inc(struct lockref *lockref)
91587+{
91588+ atomic_inc(&lockref->count);
91589+}
91590+
91591+static inline void __lockref_dec(struct lockref *lockref)
91592+{
91593+ atomic_dec(&lockref->count);
91594 }
91595
91596 #endif /* __LINUX_LOCKREF_H */
91597diff --git a/include/linux/math64.h b/include/linux/math64.h
91598index c45c089..298841c 100644
91599--- a/include/linux/math64.h
91600+++ b/include/linux/math64.h
91601@@ -15,7 +15,7 @@
91602 * This is commonly provided by 32bit archs to provide an optimized 64bit
91603 * divide.
91604 */
91605-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91606+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91607 {
91608 *remainder = dividend % divisor;
91609 return dividend / divisor;
91610@@ -42,7 +42,7 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
91611 /**
91612 * div64_u64 - unsigned 64bit divide with 64bit divisor
91613 */
91614-static inline u64 div64_u64(u64 dividend, u64 divisor)
91615+static inline u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
91616 {
91617 return dividend / divisor;
91618 }
91619@@ -61,7 +61,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
91620 #define div64_ul(x, y) div_u64((x), (y))
91621
91622 #ifndef div_u64_rem
91623-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91624+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91625 {
91626 *remainder = do_div(dividend, divisor);
91627 return dividend;
91628@@ -77,7 +77,7 @@ extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder);
91629 #endif
91630
91631 #ifndef div64_u64
91632-extern u64 div64_u64(u64 dividend, u64 divisor);
91633+extern u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor);
91634 #endif
91635
91636 #ifndef div64_s64
91637@@ -94,7 +94,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
91638 * divide.
91639 */
91640 #ifndef div_u64
91641-static inline u64 div_u64(u64 dividend, u32 divisor)
91642+static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
91643 {
91644 u32 remainder;
91645 return div_u64_rem(dividend, divisor, &remainder);
91646diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
91647index 3d385c8..deacb6a 100644
91648--- a/include/linux/mempolicy.h
91649+++ b/include/linux/mempolicy.h
91650@@ -91,6 +91,10 @@ static inline struct mempolicy *mpol_dup(struct mempolicy *pol)
91651 }
91652
91653 #define vma_policy(vma) ((vma)->vm_policy)
91654+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
91655+{
91656+ vma->vm_policy = pol;
91657+}
91658
91659 static inline void mpol_get(struct mempolicy *pol)
91660 {
91661@@ -229,6 +233,9 @@ static inline void mpol_free_shared_policy(struct shared_policy *p)
91662 }
91663
91664 #define vma_policy(vma) NULL
91665+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
91666+{
91667+}
91668
91669 static inline int
91670 vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
91671diff --git a/include/linux/mm.h b/include/linux/mm.h
91672index 47a9392..ef645bc 100644
91673--- a/include/linux/mm.h
91674+++ b/include/linux/mm.h
91675@@ -135,6 +135,11 @@ extern unsigned int kobjsize(const void *objp);
91676
91677 #define VM_DONTCOPY 0x00020000 /* Do not copy this vma on fork */
91678 #define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */
91679+
91680+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
91681+#define VM_PAGEEXEC 0x00080000 /* vma->vm_page_prot needs special handling */
91682+#endif
91683+
91684 #define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */
91685 #define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */
91686 #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
91687@@ -254,8 +259,8 @@ struct vm_operations_struct {
91688 /* called by access_process_vm when get_user_pages() fails, typically
91689 * for use by special VMAs that can switch between memory and hardware
91690 */
91691- int (*access)(struct vm_area_struct *vma, unsigned long addr,
91692- void *buf, int len, int write);
91693+ ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
91694+ void *buf, size_t len, int write);
91695
91696 /* Called by the /proc/PID/maps code to ask the vma whether it
91697 * has a special name. Returning non-NULL will also cause this
91698@@ -293,6 +298,7 @@ struct vm_operations_struct {
91699 struct page *(*find_special_page)(struct vm_area_struct *vma,
91700 unsigned long addr);
91701 };
91702+typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
91703
91704 struct mmu_gather;
91705 struct inode;
91706@@ -1213,8 +1219,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
91707 unsigned long *pfn);
91708 int follow_phys(struct vm_area_struct *vma, unsigned long address,
91709 unsigned int flags, unsigned long *prot, resource_size_t *phys);
91710-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
91711- void *buf, int len, int write);
91712+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
91713+ void *buf, size_t len, int write);
91714
91715 static inline void unmap_shared_mapping_range(struct address_space *mapping,
91716 loff_t const holebegin, loff_t const holelen)
91717@@ -1254,9 +1260,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
91718 }
91719 #endif
91720
91721-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
91722-extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
91723- void *buf, int len, int write);
91724+extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
91725+extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
91726+ void *buf, size_t len, int write);
91727
91728 long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
91729 unsigned long start, unsigned long nr_pages,
91730@@ -1299,34 +1305,6 @@ int set_page_dirty_lock(struct page *page);
91731 int clear_page_dirty_for_io(struct page *page);
91732 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
91733
91734-/* Is the vma a continuation of the stack vma above it? */
91735-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
91736-{
91737- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
91738-}
91739-
91740-static inline int stack_guard_page_start(struct vm_area_struct *vma,
91741- unsigned long addr)
91742-{
91743- return (vma->vm_flags & VM_GROWSDOWN) &&
91744- (vma->vm_start == addr) &&
91745- !vma_growsdown(vma->vm_prev, addr);
91746-}
91747-
91748-/* Is the vma a continuation of the stack vma below it? */
91749-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
91750-{
91751- return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
91752-}
91753-
91754-static inline int stack_guard_page_end(struct vm_area_struct *vma,
91755- unsigned long addr)
91756-{
91757- return (vma->vm_flags & VM_GROWSUP) &&
91758- (vma->vm_end == addr) &&
91759- !vma_growsup(vma->vm_next, addr);
91760-}
91761-
91762 extern struct task_struct *task_of_stack(struct task_struct *task,
91763 struct vm_area_struct *vma, bool in_group);
91764
91765@@ -1449,8 +1427,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
91766 {
91767 return 0;
91768 }
91769+
91770+static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
91771+ unsigned long address)
91772+{
91773+ return 0;
91774+}
91775 #else
91776 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
91777+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
91778 #endif
91779
91780 #if defined(__PAGETABLE_PMD_FOLDED) || !defined(CONFIG_MMU)
91781@@ -1460,6 +1445,12 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
91782 return 0;
91783 }
91784
91785+static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
91786+ unsigned long address)
91787+{
91788+ return 0;
91789+}
91790+
91791 static inline void mm_nr_pmds_init(struct mm_struct *mm) {}
91792
91793 static inline unsigned long mm_nr_pmds(struct mm_struct *mm)
91794@@ -1472,6 +1463,7 @@ static inline void mm_dec_nr_pmds(struct mm_struct *mm) {}
91795
91796 #else
91797 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
91798+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
91799
91800 static inline void mm_nr_pmds_init(struct mm_struct *mm)
91801 {
91802@@ -1509,11 +1501,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
91803 NULL: pud_offset(pgd, address);
91804 }
91805
91806+static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
91807+{
91808+ return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
91809+ NULL: pud_offset(pgd, address);
91810+}
91811+
91812 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
91813 {
91814 return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
91815 NULL: pmd_offset(pud, address);
91816 }
91817+
91818+static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
91819+{
91820+ return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
91821+ NULL: pmd_offset(pud, address);
91822+}
91823 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
91824
91825 #if USE_SPLIT_PTE_PTLOCKS
91826@@ -1890,12 +1894,23 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
91827 bool *need_rmap_locks);
91828 extern void exit_mmap(struct mm_struct *);
91829
91830+#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
91831+extern void gr_learn_resource(const struct task_struct *task, const int res,
91832+ const unsigned long wanted, const int gt);
91833+#else
91834+static inline void gr_learn_resource(const struct task_struct *task, const int res,
91835+ const unsigned long wanted, const int gt)
91836+{
91837+}
91838+#endif
91839+
91840 static inline int check_data_rlimit(unsigned long rlim,
91841 unsigned long new,
91842 unsigned long start,
91843 unsigned long end_data,
91844 unsigned long start_data)
91845 {
91846+ gr_learn_resource(current, RLIMIT_DATA, (new - start) + (end_data - start_data), 1);
91847 if (rlim < RLIM_INFINITY) {
91848 if (((new - start) + (end_data - start_data)) > rlim)
91849 return -ENOSPC;
91850@@ -1920,7 +1935,7 @@ extern int install_special_mapping(struct mm_struct *mm,
91851 unsigned long addr, unsigned long len,
91852 unsigned long flags, struct page **pages);
91853
91854-extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
91855+extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) __intentional_overflow(-1);
91856
91857 extern unsigned long mmap_region(struct file *file, unsigned long addr,
91858 unsigned long len, vm_flags_t vm_flags, unsigned long pgoff);
91859@@ -1928,6 +1943,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
91860 unsigned long len, unsigned long prot, unsigned long flags,
91861 unsigned long pgoff, unsigned long *populate);
91862 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
91863+extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
91864
91865 #ifdef CONFIG_MMU
91866 extern int __mm_populate(unsigned long addr, unsigned long len,
91867@@ -1956,10 +1972,11 @@ struct vm_unmapped_area_info {
91868 unsigned long high_limit;
91869 unsigned long align_mask;
91870 unsigned long align_offset;
91871+ unsigned long threadstack_offset;
91872 };
91873
91874-extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
91875-extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
91876+extern unsigned long unmapped_area(const struct vm_unmapped_area_info *info);
91877+extern unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info);
91878
91879 /*
91880 * Search for an unmapped address range.
91881@@ -1971,7 +1988,7 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
91882 * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
91883 */
91884 static inline unsigned long
91885-vm_unmapped_area(struct vm_unmapped_area_info *info)
91886+vm_unmapped_area(const struct vm_unmapped_area_info *info)
91887 {
91888 if (!(info->flags & VM_UNMAPPED_AREA_TOPDOWN))
91889 return unmapped_area(info);
91890@@ -2033,6 +2050,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
91891 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
91892 struct vm_area_struct **pprev);
91893
91894+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
91895+extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
91896+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
91897+
91898 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
91899 NULL if none. Assume start_addr < end_addr. */
91900 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
91901@@ -2062,10 +2083,10 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
91902 }
91903
91904 #ifdef CONFIG_MMU
91905-pgprot_t vm_get_page_prot(unsigned long vm_flags);
91906+pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
91907 void vma_set_page_prot(struct vm_area_struct *vma);
91908 #else
91909-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
91910+static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
91911 {
91912 return __pgprot(0);
91913 }
91914@@ -2127,6 +2148,11 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
91915 static inline void vm_stat_account(struct mm_struct *mm,
91916 unsigned long flags, struct file *file, long pages)
91917 {
91918+
91919+#ifdef CONFIG_PAX_RANDMMAP
91920+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
91921+#endif
91922+
91923 mm->total_vm += pages;
91924 }
91925 #endif /* CONFIG_PROC_FS */
91926@@ -2229,7 +2255,7 @@ extern int unpoison_memory(unsigned long pfn);
91927 extern int sysctl_memory_failure_early_kill;
91928 extern int sysctl_memory_failure_recovery;
91929 extern void shake_page(struct page *p, int access);
91930-extern atomic_long_t num_poisoned_pages;
91931+extern atomic_long_unchecked_t num_poisoned_pages;
91932 extern int soft_offline_page(struct page *page, int flags);
91933
91934 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
91935@@ -2280,5 +2306,11 @@ void __init setup_nr_node_ids(void);
91936 static inline void setup_nr_node_ids(void) {}
91937 #endif
91938
91939+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
91940+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
91941+#else
91942+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
91943+#endif
91944+
91945 #endif /* __KERNEL__ */
91946 #endif /* _LINUX_MM_H */
91947diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
91948index 199a03a..7328440 100644
91949--- a/include/linux/mm_types.h
91950+++ b/include/linux/mm_types.h
91951@@ -313,7 +313,9 @@ struct vm_area_struct {
91952 #ifdef CONFIG_NUMA
91953 struct mempolicy *vm_policy; /* NUMA policy for the VMA */
91954 #endif
91955-};
91956+
91957+ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
91958+} __randomize_layout;
91959
91960 struct core_thread {
91961 struct task_struct *task;
91962@@ -464,7 +466,25 @@ struct mm_struct {
91963 /* address of the bounds directory */
91964 void __user *bd_addr;
91965 #endif
91966-};
91967+
91968+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
91969+ unsigned long pax_flags;
91970+#endif
91971+
91972+#ifdef CONFIG_PAX_DLRESOLVE
91973+ unsigned long call_dl_resolve;
91974+#endif
91975+
91976+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
91977+ unsigned long call_syscall;
91978+#endif
91979+
91980+#ifdef CONFIG_PAX_ASLR
91981+ unsigned long delta_mmap; /* randomized offset */
91982+ unsigned long delta_stack; /* randomized offset */
91983+#endif
91984+
91985+} __randomize_layout;
91986
91987 static inline void mm_init_cpumask(struct mm_struct *mm)
91988 {
91989diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
91990index 160448f..7b332b7 100644
91991--- a/include/linux/mmc/core.h
91992+++ b/include/linux/mmc/core.h
91993@@ -79,7 +79,7 @@ struct mmc_command {
91994 #define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK)
91995
91996 unsigned int retries; /* max number of retries */
91997- unsigned int error; /* command error */
91998+ int error; /* command error */
91999
92000 /*
92001 * Standard errno values are used for errors, but some have specific
92002diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
92003index c5d5278..f0b68c8 100644
92004--- a/include/linux/mmiotrace.h
92005+++ b/include/linux/mmiotrace.h
92006@@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
92007 /* Called from ioremap.c */
92008 extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
92009 void __iomem *addr);
92010-extern void mmiotrace_iounmap(volatile void __iomem *addr);
92011+extern void mmiotrace_iounmap(const volatile void __iomem *addr);
92012
92013 /* For anyone to insert markers. Remember trailing newline. */
92014 extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
92015@@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
92016 {
92017 }
92018
92019-static inline void mmiotrace_iounmap(volatile void __iomem *addr)
92020+static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
92021 {
92022 }
92023
92024diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
92025index 2782df4..abe756e 100644
92026--- a/include/linux/mmzone.h
92027+++ b/include/linux/mmzone.h
92028@@ -526,7 +526,7 @@ struct zone {
92029
92030 ZONE_PADDING(_pad3_)
92031 /* Zone statistics */
92032- atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
92033+ atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
92034 } ____cacheline_internodealigned_in_smp;
92035
92036 enum zone_flags {
92037diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
92038index e530533..c9620c7 100644
92039--- a/include/linux/mod_devicetable.h
92040+++ b/include/linux/mod_devicetable.h
92041@@ -139,7 +139,7 @@ struct usb_device_id {
92042 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
92043 #define USB_DEVICE_ID_MATCH_INT_NUMBER 0x0400
92044
92045-#define HID_ANY_ID (~0)
92046+#define HID_ANY_ID (~0U)
92047 #define HID_BUS_ANY 0xffff
92048 #define HID_GROUP_ANY 0x0000
92049
92050@@ -470,7 +470,7 @@ struct dmi_system_id {
92051 const char *ident;
92052 struct dmi_strmatch matches[4];
92053 void *driver_data;
92054-};
92055+} __do_const;
92056 /*
92057 * struct dmi_device_id appears during expansion of
92058 * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
92059diff --git a/include/linux/module.h b/include/linux/module.h
92060index b03485b..a26974f 100644
92061--- a/include/linux/module.h
92062+++ b/include/linux/module.h
92063@@ -17,9 +17,11 @@
92064 #include <linux/moduleparam.h>
92065 #include <linux/jump_label.h>
92066 #include <linux/export.h>
92067+#include <linux/fs.h>
92068
92069 #include <linux/percpu.h>
92070 #include <asm/module.h>
92071+#include <asm/pgtable.h>
92072
92073 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
92074 #define MODULE_SIG_STRING "~Module signature appended~\n"
92075@@ -42,7 +44,7 @@ struct module_kobject {
92076 struct kobject *drivers_dir;
92077 struct module_param_attrs *mp;
92078 struct completion *kobj_completion;
92079-};
92080+} __randomize_layout;
92081
92082 struct module_attribute {
92083 struct attribute attr;
92084@@ -54,12 +56,13 @@ struct module_attribute {
92085 int (*test)(struct module *);
92086 void (*free)(struct module *);
92087 };
92088+typedef struct module_attribute __no_const module_attribute_no_const;
92089
92090 struct module_version_attribute {
92091 struct module_attribute mattr;
92092 const char *module_name;
92093 const char *version;
92094-} __attribute__ ((__aligned__(sizeof(void *))));
92095+} __do_const __attribute__ ((__aligned__(sizeof(void *))));
92096
92097 extern ssize_t __modver_version_show(struct module_attribute *,
92098 struct module_kobject *, char *);
92099@@ -221,7 +224,7 @@ struct module {
92100
92101 /* Sysfs stuff. */
92102 struct module_kobject mkobj;
92103- struct module_attribute *modinfo_attrs;
92104+ module_attribute_no_const *modinfo_attrs;
92105 const char *version;
92106 const char *srcversion;
92107 struct kobject *holders_dir;
92108@@ -270,19 +273,16 @@ struct module {
92109 int (*init)(void);
92110
92111 /* If this is non-NULL, vfree after init() returns */
92112- void *module_init;
92113+ void *module_init_rx, *module_init_rw;
92114
92115 /* Here is the actual code + data, vfree'd on unload. */
92116- void *module_core;
92117+ void *module_core_rx, *module_core_rw;
92118
92119 /* Here are the sizes of the init and core sections */
92120- unsigned int init_size, core_size;
92121+ unsigned int init_size_rw, core_size_rw;
92122
92123 /* The size of the executable code in each section. */
92124- unsigned int init_text_size, core_text_size;
92125-
92126- /* Size of RO sections of the module (text+rodata) */
92127- unsigned int init_ro_size, core_ro_size;
92128+ unsigned int init_size_rx, core_size_rx;
92129
92130 /* Arch-specific module values */
92131 struct mod_arch_specific arch;
92132@@ -338,6 +338,10 @@ struct module {
92133 #ifdef CONFIG_EVENT_TRACING
92134 struct ftrace_event_call **trace_events;
92135 unsigned int num_trace_events;
92136+ struct file_operations trace_id;
92137+ struct file_operations trace_enable;
92138+ struct file_operations trace_format;
92139+ struct file_operations trace_filter;
92140 #endif
92141 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
92142 unsigned int num_ftrace_callsites;
92143@@ -365,7 +369,7 @@ struct module {
92144 ctor_fn_t *ctors;
92145 unsigned int num_ctors;
92146 #endif
92147-};
92148+} __randomize_layout;
92149 #ifndef MODULE_ARCH_INIT
92150 #define MODULE_ARCH_INIT {}
92151 #endif
92152@@ -386,18 +390,48 @@ bool is_module_address(unsigned long addr);
92153 bool is_module_percpu_address(unsigned long addr);
92154 bool is_module_text_address(unsigned long addr);
92155
92156+static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
92157+{
92158+
92159+#ifdef CONFIG_PAX_KERNEXEC
92160+ if (ktla_ktva(addr) >= (unsigned long)start &&
92161+ ktla_ktva(addr) < (unsigned long)start + size)
92162+ return 1;
92163+#endif
92164+
92165+ return ((void *)addr >= start && (void *)addr < start + size);
92166+}
92167+
92168+static inline int within_module_core_rx(unsigned long addr, const struct module *mod)
92169+{
92170+ return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
92171+}
92172+
92173+static inline int within_module_core_rw(unsigned long addr, const struct module *mod)
92174+{
92175+ return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
92176+}
92177+
92178+static inline int within_module_init_rx(unsigned long addr, const struct module *mod)
92179+{
92180+ return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
92181+}
92182+
92183+static inline int within_module_init_rw(unsigned long addr, const struct module *mod)
92184+{
92185+ return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
92186+}
92187+
92188 static inline bool within_module_core(unsigned long addr,
92189 const struct module *mod)
92190 {
92191- return (unsigned long)mod->module_core <= addr &&
92192- addr < (unsigned long)mod->module_core + mod->core_size;
92193+ return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
92194 }
92195
92196 static inline bool within_module_init(unsigned long addr,
92197 const struct module *mod)
92198 {
92199- return (unsigned long)mod->module_init <= addr &&
92200- addr < (unsigned long)mod->module_init + mod->init_size;
92201+ return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
92202 }
92203
92204 static inline bool within_module(unsigned long addr, const struct module *mod)
92205diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
92206index 4d0cb9b..3169ac7 100644
92207--- a/include/linux/moduleloader.h
92208+++ b/include/linux/moduleloader.h
92209@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
92210 sections. Returns NULL on failure. */
92211 void *module_alloc(unsigned long size);
92212
92213+#ifdef CONFIG_PAX_KERNEXEC
92214+void *module_alloc_exec(unsigned long size);
92215+#else
92216+#define module_alloc_exec(x) module_alloc(x)
92217+#endif
92218+
92219 /* Free memory returned from module_alloc. */
92220 void module_memfree(void *module_region);
92221
92222+#ifdef CONFIG_PAX_KERNEXEC
92223+void module_memfree_exec(void *module_region);
92224+#else
92225+#define module_memfree_exec(x) module_memfree((x))
92226+#endif
92227+
92228 /*
92229 * Apply the given relocation to the (simplified) ELF. Return -error
92230 * or 0.
92231@@ -45,8 +57,10 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
92232 unsigned int relsec,
92233 struct module *me)
92234 {
92235+#ifdef CONFIG_MODULES
92236 printk(KERN_ERR "module %s: REL relocation unsupported\n",
92237 module_name(me));
92238+#endif
92239 return -ENOEXEC;
92240 }
92241 #endif
92242@@ -68,8 +82,10 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
92243 unsigned int relsec,
92244 struct module *me)
92245 {
92246+#ifdef CONFIG_MODULES
92247 printk(KERN_ERR "module %s: REL relocation unsupported\n",
92248 module_name(me));
92249+#endif
92250 return -ENOEXEC;
92251 }
92252 #endif
92253diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
92254index 1c9effa..1160bdd 100644
92255--- a/include/linux/moduleparam.h
92256+++ b/include/linux/moduleparam.h
92257@@ -323,7 +323,7 @@ static inline void __kernel_param_unlock(void)
92258 * @len is usually just sizeof(string).
92259 */
92260 #define module_param_string(name, string, len, perm) \
92261- static const struct kparam_string __param_string_##name \
92262+ static const struct kparam_string __param_string_##name __used \
92263 = { len, string }; \
92264 __module_param_call(MODULE_PARAM_PREFIX, name, \
92265 &param_ops_string, \
92266@@ -467,7 +467,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
92267 */
92268 #define module_param_array_named(name, array, type, nump, perm) \
92269 param_check_##type(name, &(array)[0]); \
92270- static const struct kparam_array __param_arr_##name \
92271+ static const struct kparam_array __param_arr_##name __used \
92272 = { .max = ARRAY_SIZE(array), .num = nump, \
92273 .ops = &param_ops_##type, \
92274 .elemsize = sizeof(array[0]), .elem = array }; \
92275diff --git a/include/linux/mount.h b/include/linux/mount.h
92276index 564beee..653be6f 100644
92277--- a/include/linux/mount.h
92278+++ b/include/linux/mount.h
92279@@ -67,7 +67,7 @@ struct vfsmount {
92280 struct dentry *mnt_root; /* root of the mounted tree */
92281 struct super_block *mnt_sb; /* pointer to superblock */
92282 int mnt_flags;
92283-};
92284+} __randomize_layout;
92285
92286 struct file; /* forward dec */
92287 struct path;
92288diff --git a/include/linux/namei.h b/include/linux/namei.h
92289index c899077..b9a2010 100644
92290--- a/include/linux/namei.h
92291+++ b/include/linux/namei.h
92292@@ -71,8 +71,8 @@ extern struct dentry *lock_rename(struct dentry *, struct dentry *);
92293 extern void unlock_rename(struct dentry *, struct dentry *);
92294
92295 extern void nd_jump_link(struct nameidata *nd, struct path *path);
92296-extern void nd_set_link(struct nameidata *nd, char *path);
92297-extern char *nd_get_link(struct nameidata *nd);
92298+extern void nd_set_link(struct nameidata *nd, const char *path);
92299+extern const char *nd_get_link(const struct nameidata *nd);
92300
92301 static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
92302 {
92303diff --git a/include/linux/net.h b/include/linux/net.h
92304index 17d8339..81656c0 100644
92305--- a/include/linux/net.h
92306+++ b/include/linux/net.h
92307@@ -192,7 +192,7 @@ struct net_proto_family {
92308 int (*create)(struct net *net, struct socket *sock,
92309 int protocol, int kern);
92310 struct module *owner;
92311-};
92312+} __do_const;
92313
92314 struct iovec;
92315 struct kvec;
92316diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
92317index 2787388..1dd8e88 100644
92318--- a/include/linux/netdevice.h
92319+++ b/include/linux/netdevice.h
92320@@ -1198,6 +1198,7 @@ struct net_device_ops {
92321 u8 state);
92322 #endif
92323 };
92324+typedef struct net_device_ops __no_const net_device_ops_no_const;
92325
92326 /**
92327 * enum net_device_priv_flags - &struct net_device priv_flags
92328@@ -1546,10 +1547,10 @@ struct net_device {
92329
92330 struct net_device_stats stats;
92331
92332- atomic_long_t rx_dropped;
92333- atomic_long_t tx_dropped;
92334+ atomic_long_unchecked_t rx_dropped;
92335+ atomic_long_unchecked_t tx_dropped;
92336
92337- atomic_t carrier_changes;
92338+ atomic_unchecked_t carrier_changes;
92339
92340 #ifdef CONFIG_WIRELESS_EXT
92341 const struct iw_handler_def * wireless_handlers;
92342diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
92343index 2517ece..0bbfcfb 100644
92344--- a/include/linux/netfilter.h
92345+++ b/include/linux/netfilter.h
92346@@ -85,7 +85,7 @@ struct nf_sockopt_ops {
92347 #endif
92348 /* Use the module struct to lock set/get code in place */
92349 struct module *owner;
92350-};
92351+} __do_const;
92352
92353 /* Function to register/unregister hook points. */
92354 int nf_register_hook(struct nf_hook_ops *reg);
92355diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
92356index e955d47..04a5338 100644
92357--- a/include/linux/netfilter/nfnetlink.h
92358+++ b/include/linux/netfilter/nfnetlink.h
92359@@ -19,7 +19,7 @@ struct nfnl_callback {
92360 const struct nlattr * const cda[]);
92361 const struct nla_policy *policy; /* netlink attribute policy */
92362 const u_int16_t attr_count; /* number of nlattr's */
92363-};
92364+} __do_const;
92365
92366 struct nfnetlink_subsystem {
92367 const char *name;
92368diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
92369new file mode 100644
92370index 0000000..33f4af8
92371--- /dev/null
92372+++ b/include/linux/netfilter/xt_gradm.h
92373@@ -0,0 +1,9 @@
92374+#ifndef _LINUX_NETFILTER_XT_GRADM_H
92375+#define _LINUX_NETFILTER_XT_GRADM_H 1
92376+
92377+struct xt_gradm_mtinfo {
92378+ __u16 flags;
92379+ __u16 invflags;
92380+};
92381+
92382+#endif
92383diff --git a/include/linux/nls.h b/include/linux/nls.h
92384index 520681b..2b7fabb 100644
92385--- a/include/linux/nls.h
92386+++ b/include/linux/nls.h
92387@@ -31,7 +31,7 @@ struct nls_table {
92388 const unsigned char *charset2upper;
92389 struct module *owner;
92390 struct nls_table *next;
92391-};
92392+} __do_const;
92393
92394 /* this value hold the maximum octet of charset */
92395 #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
92396@@ -46,7 +46,7 @@ enum utf16_endian {
92397 /* nls_base.c */
92398 extern int __register_nls(struct nls_table *, struct module *);
92399 extern int unregister_nls(struct nls_table *);
92400-extern struct nls_table *load_nls(char *);
92401+extern struct nls_table *load_nls(const char *);
92402 extern void unload_nls(struct nls_table *);
92403 extern struct nls_table *load_nls_default(void);
92404 #define register_nls(nls) __register_nls((nls), THIS_MODULE)
92405diff --git a/include/linux/notifier.h b/include/linux/notifier.h
92406index d14a4c3..a078786 100644
92407--- a/include/linux/notifier.h
92408+++ b/include/linux/notifier.h
92409@@ -54,7 +54,8 @@ struct notifier_block {
92410 notifier_fn_t notifier_call;
92411 struct notifier_block __rcu *next;
92412 int priority;
92413-};
92414+} __do_const;
92415+typedef struct notifier_block __no_const notifier_block_no_const;
92416
92417 struct atomic_notifier_head {
92418 spinlock_t lock;
92419diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
92420index b2a0f15..4d7da32 100644
92421--- a/include/linux/oprofile.h
92422+++ b/include/linux/oprofile.h
92423@@ -138,9 +138,9 @@ int oprofilefs_create_ulong(struct dentry * root,
92424 int oprofilefs_create_ro_ulong(struct dentry * root,
92425 char const * name, ulong * val);
92426
92427-/** Create a file for read-only access to an atomic_t. */
92428+/** Create a file for read-only access to an atomic_unchecked_t. */
92429 int oprofilefs_create_ro_atomic(struct dentry * root,
92430- char const * name, atomic_t * val);
92431+ char const * name, atomic_unchecked_t * val);
92432
92433 /** create a directory */
92434 struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name);
92435diff --git a/include/linux/padata.h b/include/linux/padata.h
92436index 4386946..f50c615 100644
92437--- a/include/linux/padata.h
92438+++ b/include/linux/padata.h
92439@@ -129,7 +129,7 @@ struct parallel_data {
92440 struct padata_serial_queue __percpu *squeue;
92441 atomic_t reorder_objects;
92442 atomic_t refcnt;
92443- atomic_t seq_nr;
92444+ atomic_unchecked_t seq_nr;
92445 struct padata_cpumask cpumask;
92446 spinlock_t lock ____cacheline_aligned;
92447 unsigned int processed;
92448diff --git a/include/linux/path.h b/include/linux/path.h
92449index d137218..be0c176 100644
92450--- a/include/linux/path.h
92451+++ b/include/linux/path.h
92452@@ -1,13 +1,15 @@
92453 #ifndef _LINUX_PATH_H
92454 #define _LINUX_PATH_H
92455
92456+#include <linux/compiler.h>
92457+
92458 struct dentry;
92459 struct vfsmount;
92460
92461 struct path {
92462 struct vfsmount *mnt;
92463 struct dentry *dentry;
92464-};
92465+} __randomize_layout;
92466
92467 extern void path_get(const struct path *);
92468 extern void path_put(const struct path *);
92469diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
92470index 8c78950..0d74ed9 100644
92471--- a/include/linux/pci_hotplug.h
92472+++ b/include/linux/pci_hotplug.h
92473@@ -71,7 +71,8 @@ struct hotplug_slot_ops {
92474 int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
92475 int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
92476 int (*reset_slot) (struct hotplug_slot *slot, int probe);
92477-};
92478+} __do_const;
92479+typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
92480
92481 /**
92482 * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
92483diff --git a/include/linux/percpu.h b/include/linux/percpu.h
92484index caebf2a..4c3ae9d 100644
92485--- a/include/linux/percpu.h
92486+++ b/include/linux/percpu.h
92487@@ -34,7 +34,7 @@
92488 * preallocate for this. Keep PERCPU_DYNAMIC_RESERVE equal to or
92489 * larger than PERCPU_DYNAMIC_EARLY_SIZE.
92490 */
92491-#define PERCPU_DYNAMIC_EARLY_SLOTS 128
92492+#define PERCPU_DYNAMIC_EARLY_SLOTS 256
92493 #define PERCPU_DYNAMIC_EARLY_SIZE (12 << 10)
92494
92495 /*
92496diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
92497index 2b62198..2b74233 100644
92498--- a/include/linux/perf_event.h
92499+++ b/include/linux/perf_event.h
92500@@ -343,8 +343,8 @@ struct perf_event {
92501
92502 enum perf_event_active_state state;
92503 unsigned int attach_state;
92504- local64_t count;
92505- atomic64_t child_count;
92506+ local64_t count; /* PaX: fix it one day */
92507+ atomic64_unchecked_t child_count;
92508
92509 /*
92510 * These are the total time in nanoseconds that the event
92511@@ -395,8 +395,8 @@ struct perf_event {
92512 * These accumulate total time (in nanoseconds) that children
92513 * events have been enabled and running, respectively.
92514 */
92515- atomic64_t child_total_time_enabled;
92516- atomic64_t child_total_time_running;
92517+ atomic64_unchecked_t child_total_time_enabled;
92518+ atomic64_unchecked_t child_total_time_running;
92519
92520 /*
92521 * Protect attach/detach and child_list:
92522@@ -752,7 +752,7 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
92523 entry->ip[entry->nr++] = ip;
92524 }
92525
92526-extern int sysctl_perf_event_paranoid;
92527+extern int sysctl_perf_event_legitimately_concerned;
92528 extern int sysctl_perf_event_mlock;
92529 extern int sysctl_perf_event_sample_rate;
92530 extern int sysctl_perf_cpu_time_max_percent;
92531@@ -767,19 +767,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
92532 loff_t *ppos);
92533
92534
92535+static inline bool perf_paranoid_any(void)
92536+{
92537+ return sysctl_perf_event_legitimately_concerned > 2;
92538+}
92539+
92540 static inline bool perf_paranoid_tracepoint_raw(void)
92541 {
92542- return sysctl_perf_event_paranoid > -1;
92543+ return sysctl_perf_event_legitimately_concerned > -1;
92544 }
92545
92546 static inline bool perf_paranoid_cpu(void)
92547 {
92548- return sysctl_perf_event_paranoid > 0;
92549+ return sysctl_perf_event_legitimately_concerned > 0;
92550 }
92551
92552 static inline bool perf_paranoid_kernel(void)
92553 {
92554- return sysctl_perf_event_paranoid > 1;
92555+ return sysctl_perf_event_legitimately_concerned > 1;
92556 }
92557
92558 extern void perf_event_init(void);
92559@@ -912,7 +917,7 @@ struct perf_pmu_events_attr {
92560 struct device_attribute attr;
92561 u64 id;
92562 const char *event_str;
92563-};
92564+} __do_const;
92565
92566 ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
92567 char *page);
92568diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
92569index 918b117..7af374b7 100644
92570--- a/include/linux/pid_namespace.h
92571+++ b/include/linux/pid_namespace.h
92572@@ -45,7 +45,7 @@ struct pid_namespace {
92573 int hide_pid;
92574 int reboot; /* group exit code if this pidns was rebooted */
92575 struct ns_common ns;
92576-};
92577+} __randomize_layout;
92578
92579 extern struct pid_namespace init_pid_ns;
92580
92581diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
92582index eb8b8ac..62649e1 100644
92583--- a/include/linux/pipe_fs_i.h
92584+++ b/include/linux/pipe_fs_i.h
92585@@ -47,10 +47,10 @@ struct pipe_inode_info {
92586 struct mutex mutex;
92587 wait_queue_head_t wait;
92588 unsigned int nrbufs, curbuf, buffers;
92589- unsigned int readers;
92590- unsigned int writers;
92591- unsigned int files;
92592- unsigned int waiting_writers;
92593+ atomic_t readers;
92594+ atomic_t writers;
92595+ atomic_t files;
92596+ atomic_t waiting_writers;
92597 unsigned int r_counter;
92598 unsigned int w_counter;
92599 struct page *tmp_page;
92600diff --git a/include/linux/pm.h b/include/linux/pm.h
92601index e2f1be6..78a0506 100644
92602--- a/include/linux/pm.h
92603+++ b/include/linux/pm.h
92604@@ -608,6 +608,7 @@ struct dev_pm_domain {
92605 struct dev_pm_ops ops;
92606 void (*detach)(struct device *dev, bool power_off);
92607 };
92608+typedef struct dev_pm_domain __no_const dev_pm_domain_no_const;
92609
92610 /*
92611 * The PM_EVENT_ messages are also used by drivers implementing the legacy
92612diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
92613index 080e778..cbdaef7 100644
92614--- a/include/linux/pm_domain.h
92615+++ b/include/linux/pm_domain.h
92616@@ -39,11 +39,11 @@ struct gpd_dev_ops {
92617 int (*save_state)(struct device *dev);
92618 int (*restore_state)(struct device *dev);
92619 bool (*active_wakeup)(struct device *dev);
92620-};
92621+} __no_const;
92622
92623 struct gpd_cpuidle_data {
92624 unsigned int saved_exit_latency;
92625- struct cpuidle_state *idle_state;
92626+ cpuidle_state_no_const *idle_state;
92627 };
92628
92629 struct generic_pm_domain {
92630diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
92631index 30e84d4..22278b4 100644
92632--- a/include/linux/pm_runtime.h
92633+++ b/include/linux/pm_runtime.h
92634@@ -115,7 +115,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
92635
92636 static inline void pm_runtime_mark_last_busy(struct device *dev)
92637 {
92638- ACCESS_ONCE(dev->power.last_busy) = jiffies;
92639+ ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
92640 }
92641
92642 static inline bool pm_runtime_is_irq_safe(struct device *dev)
92643diff --git a/include/linux/pnp.h b/include/linux/pnp.h
92644index 6512e9c..ec27fa2 100644
92645--- a/include/linux/pnp.h
92646+++ b/include/linux/pnp.h
92647@@ -298,7 +298,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
92648 struct pnp_fixup {
92649 char id[7];
92650 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
92651-};
92652+} __do_const;
92653
92654 /* config parameters */
92655 #define PNP_CONFIG_NORMAL 0x0001
92656diff --git a/include/linux/poison.h b/include/linux/poison.h
92657index 2110a81..13a11bb 100644
92658--- a/include/linux/poison.h
92659+++ b/include/linux/poison.h
92660@@ -19,8 +19,8 @@
92661 * under normal circumstances, used to verify that nobody uses
92662 * non-initialized list entries.
92663 */
92664-#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
92665-#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
92666+#define LIST_POISON1 ((void *) (long)0xFFFFFF01)
92667+#define LIST_POISON2 ((void *) (long)0xFFFFFF02)
92668
92669 /********** include/linux/timer.h **********/
92670 /*
92671diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
92672index d8b187c3..9a9257a 100644
92673--- a/include/linux/power/smartreflex.h
92674+++ b/include/linux/power/smartreflex.h
92675@@ -238,7 +238,7 @@ struct omap_sr_class_data {
92676 int (*notify)(struct omap_sr *sr, u32 status);
92677 u8 notify_flags;
92678 u8 class_type;
92679-};
92680+} __do_const;
92681
92682 /**
92683 * struct omap_sr_nvalue_table - Smartreflex n-target value info
92684diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
92685index 4ea1d37..80f4b33 100644
92686--- a/include/linux/ppp-comp.h
92687+++ b/include/linux/ppp-comp.h
92688@@ -84,7 +84,7 @@ struct compressor {
92689 struct module *owner;
92690 /* Extra skb space needed by the compressor algorithm */
92691 unsigned int comp_extra;
92692-};
92693+} __do_const;
92694
92695 /*
92696 * The return value from decompress routine is the length of the
92697diff --git a/include/linux/preempt.h b/include/linux/preempt.h
92698index de83b4e..c4b997d 100644
92699--- a/include/linux/preempt.h
92700+++ b/include/linux/preempt.h
92701@@ -27,11 +27,16 @@ extern void preempt_count_sub(int val);
92702 #define preempt_count_dec_and_test() __preempt_count_dec_and_test()
92703 #endif
92704
92705+#define raw_preempt_count_add(val) __preempt_count_add(val)
92706+#define raw_preempt_count_sub(val) __preempt_count_sub(val)
92707+
92708 #define __preempt_count_inc() __preempt_count_add(1)
92709 #define __preempt_count_dec() __preempt_count_sub(1)
92710
92711 #define preempt_count_inc() preempt_count_add(1)
92712+#define raw_preempt_count_inc() raw_preempt_count_add(1)
92713 #define preempt_count_dec() preempt_count_sub(1)
92714+#define raw_preempt_count_dec() raw_preempt_count_sub(1)
92715
92716 #ifdef CONFIG_PREEMPT_COUNT
92717
92718@@ -41,6 +46,12 @@ do { \
92719 barrier(); \
92720 } while (0)
92721
92722+#define raw_preempt_disable() \
92723+do { \
92724+ raw_preempt_count_inc(); \
92725+ barrier(); \
92726+} while (0)
92727+
92728 #define sched_preempt_enable_no_resched() \
92729 do { \
92730 barrier(); \
92731@@ -49,6 +60,12 @@ do { \
92732
92733 #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
92734
92735+#define raw_preempt_enable_no_resched() \
92736+do { \
92737+ barrier(); \
92738+ raw_preempt_count_dec(); \
92739+} while (0)
92740+
92741 #ifdef CONFIG_PREEMPT
92742 #define preempt_enable() \
92743 do { \
92744@@ -113,8 +130,10 @@ do { \
92745 * region.
92746 */
92747 #define preempt_disable() barrier()
92748+#define raw_preempt_disable() barrier()
92749 #define sched_preempt_enable_no_resched() barrier()
92750 #define preempt_enable_no_resched() barrier()
92751+#define raw_preempt_enable_no_resched() barrier()
92752 #define preempt_enable() barrier()
92753 #define preempt_check_resched() do { } while (0)
92754
92755@@ -128,11 +147,13 @@ do { \
92756 /*
92757 * Modules have no business playing preemption tricks.
92758 */
92759+#ifndef CONFIG_PAX_KERNEXEC
92760 #undef sched_preempt_enable_no_resched
92761 #undef preempt_enable_no_resched
92762 #undef preempt_enable_no_resched_notrace
92763 #undef preempt_check_resched
92764 #endif
92765+#endif
92766
92767 #define preempt_set_need_resched() \
92768 do { \
92769diff --git a/include/linux/printk.h b/include/linux/printk.h
92770index baa3f97..168cff1 100644
92771--- a/include/linux/printk.h
92772+++ b/include/linux/printk.h
92773@@ -121,6 +121,7 @@ void early_printk(const char *s, ...) { }
92774 #endif
92775
92776 typedef int(*printk_func_t)(const char *fmt, va_list args);
92777+extern int kptr_restrict;
92778
92779 #ifdef CONFIG_PRINTK
92780 asmlinkage __printf(5, 0)
92781@@ -156,7 +157,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
92782
92783 extern int printk_delay_msec;
92784 extern int dmesg_restrict;
92785-extern int kptr_restrict;
92786
92787 extern void wake_up_klogd(void);
92788
92789diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
92790index b97bf2e..f14c92d4 100644
92791--- a/include/linux/proc_fs.h
92792+++ b/include/linux/proc_fs.h
92793@@ -17,8 +17,11 @@ extern void proc_flush_task(struct task_struct *);
92794 extern struct proc_dir_entry *proc_symlink(const char *,
92795 struct proc_dir_entry *, const char *);
92796 extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
92797+extern struct proc_dir_entry *proc_mkdir_restrict(const char *, struct proc_dir_entry *);
92798 extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
92799 struct proc_dir_entry *, void *);
92800+extern struct proc_dir_entry *proc_mkdir_data_restrict(const char *, umode_t,
92801+ struct proc_dir_entry *, void *);
92802 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
92803 struct proc_dir_entry *);
92804
92805@@ -34,6 +37,19 @@ static inline struct proc_dir_entry *proc_create(
92806 return proc_create_data(name, mode, parent, proc_fops, NULL);
92807 }
92808
92809+static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
92810+ struct proc_dir_entry *parent, const struct file_operations *proc_fops)
92811+{
92812+#ifdef CONFIG_GRKERNSEC_PROC_USER
92813+ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
92814+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
92815+ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
92816+#else
92817+ return proc_create_data(name, mode, parent, proc_fops, NULL);
92818+#endif
92819+}
92820+
92821+
92822 extern void proc_set_size(struct proc_dir_entry *, loff_t);
92823 extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
92824 extern void *PDE_DATA(const struct inode *);
92825@@ -56,8 +72,12 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
92826 struct proc_dir_entry *parent,const char *dest) { return NULL;}
92827 static inline struct proc_dir_entry *proc_mkdir(const char *name,
92828 struct proc_dir_entry *parent) {return NULL;}
92829+static inline struct proc_dir_entry *proc_mkdir_restrict(const char *name,
92830+ struct proc_dir_entry *parent) { return NULL; }
92831 static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
92832 umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
92833+static inline struct proc_dir_entry *proc_mkdir_data_restrict(const char *name,
92834+ umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
92835 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
92836 umode_t mode, struct proc_dir_entry *parent) { return NULL; }
92837 #define proc_create(name, mode, parent, proc_fops) ({NULL;})
92838@@ -79,7 +99,7 @@ struct net;
92839 static inline struct proc_dir_entry *proc_net_mkdir(
92840 struct net *net, const char *name, struct proc_dir_entry *parent)
92841 {
92842- return proc_mkdir_data(name, 0, parent, net);
92843+ return proc_mkdir_data_restrict(name, 0, parent, net);
92844 }
92845
92846 #endif /* _LINUX_PROC_FS_H */
92847diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
92848index 42dfc61..8113a99 100644
92849--- a/include/linux/proc_ns.h
92850+++ b/include/linux/proc_ns.h
92851@@ -16,7 +16,7 @@ struct proc_ns_operations {
92852 struct ns_common *(*get)(struct task_struct *task);
92853 void (*put)(struct ns_common *ns);
92854 int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
92855-};
92856+} __do_const __randomize_layout;
92857
92858 extern const struct proc_ns_operations netns_operations;
92859 extern const struct proc_ns_operations utsns_operations;
92860diff --git a/include/linux/quota.h b/include/linux/quota.h
92861index d534e8e..782e604 100644
92862--- a/include/linux/quota.h
92863+++ b/include/linux/quota.h
92864@@ -75,7 +75,7 @@ struct kqid { /* Type in which we store the quota identifier */
92865
92866 extern bool qid_eq(struct kqid left, struct kqid right);
92867 extern bool qid_lt(struct kqid left, struct kqid right);
92868-extern qid_t from_kqid(struct user_namespace *to, struct kqid qid);
92869+extern qid_t from_kqid(struct user_namespace *to, struct kqid qid) __intentional_overflow(-1);
92870 extern qid_t from_kqid_munged(struct user_namespace *to, struct kqid qid);
92871 extern bool qid_valid(struct kqid qid);
92872
92873diff --git a/include/linux/random.h b/include/linux/random.h
92874index b05856e..0a9f14e 100644
92875--- a/include/linux/random.h
92876+++ b/include/linux/random.h
92877@@ -9,9 +9,19 @@
92878 #include <uapi/linux/random.h>
92879
92880 extern void add_device_randomness(const void *, unsigned int);
92881+
92882+static inline void add_latent_entropy(void)
92883+{
92884+
92885+#ifdef LATENT_ENTROPY_PLUGIN
92886+ add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
92887+#endif
92888+
92889+}
92890+
92891 extern void add_input_randomness(unsigned int type, unsigned int code,
92892- unsigned int value);
92893-extern void add_interrupt_randomness(int irq, int irq_flags);
92894+ unsigned int value) __latent_entropy;
92895+extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
92896
92897 extern void get_random_bytes(void *buf, int nbytes);
92898 extern void get_random_bytes_arch(void *buf, int nbytes);
92899@@ -22,10 +32,10 @@ extern int random_int_secret_init(void);
92900 extern const struct file_operations random_fops, urandom_fops;
92901 #endif
92902
92903-unsigned int get_random_int(void);
92904+unsigned int __intentional_overflow(-1) get_random_int(void);
92905 unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
92906
92907-u32 prandom_u32(void);
92908+u32 prandom_u32(void) __intentional_overflow(-1);
92909 void prandom_bytes(void *buf, size_t nbytes);
92910 void prandom_seed(u32 seed);
92911 void prandom_reseed_late(void);
92912@@ -37,6 +47,11 @@ struct rnd_state {
92913 u32 prandom_u32_state(struct rnd_state *state);
92914 void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
92915
92916+static inline unsigned long __intentional_overflow(-1) pax_get_random_long(void)
92917+{
92918+ return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
92919+}
92920+
92921 /**
92922 * prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
92923 * @ep_ro: right open interval endpoint
92924@@ -49,7 +64,7 @@ void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
92925 *
92926 * Returns: pseudo-random number in interval [0, ep_ro)
92927 */
92928-static inline u32 prandom_u32_max(u32 ep_ro)
92929+static inline u32 __intentional_overflow(-1) prandom_u32_max(u32 ep_ro)
92930 {
92931 return (u32)(((u64) prandom_u32() * ep_ro) >> 32);
92932 }
92933diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
92934index 378c5ee..aa84a47 100644
92935--- a/include/linux/rbtree_augmented.h
92936+++ b/include/linux/rbtree_augmented.h
92937@@ -90,7 +90,9 @@ rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new) \
92938 old->rbaugmented = rbcompute(old); \
92939 } \
92940 rbstatic const struct rb_augment_callbacks rbname = { \
92941- rbname ## _propagate, rbname ## _copy, rbname ## _rotate \
92942+ .propagate = rbname ## _propagate, \
92943+ .copy = rbname ## _copy, \
92944+ .rotate = rbname ## _rotate \
92945 };
92946
92947
92948diff --git a/include/linux/rculist.h b/include/linux/rculist.h
92949index a18b16f..2683096 100644
92950--- a/include/linux/rculist.h
92951+++ b/include/linux/rculist.h
92952@@ -29,8 +29,8 @@
92953 */
92954 static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
92955 {
92956- ACCESS_ONCE(list->next) = list;
92957- ACCESS_ONCE(list->prev) = list;
92958+ ACCESS_ONCE_RW(list->next) = list;
92959+ ACCESS_ONCE_RW(list->prev) = list;
92960 }
92961
92962 /*
92963@@ -59,6 +59,9 @@ void __list_add_rcu(struct list_head *new,
92964 struct list_head *prev, struct list_head *next);
92965 #endif
92966
92967+void __pax_list_add_rcu(struct list_head *new,
92968+ struct list_head *prev, struct list_head *next);
92969+
92970 /**
92971 * list_add_rcu - add a new entry to rcu-protected list
92972 * @new: new entry to be added
92973@@ -80,6 +83,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
92974 __list_add_rcu(new, head, head->next);
92975 }
92976
92977+static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
92978+{
92979+ __pax_list_add_rcu(new, head, head->next);
92980+}
92981+
92982 /**
92983 * list_add_tail_rcu - add a new entry to rcu-protected list
92984 * @new: new entry to be added
92985@@ -102,6 +110,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
92986 __list_add_rcu(new, head->prev, head);
92987 }
92988
92989+static inline void pax_list_add_tail_rcu(struct list_head *new,
92990+ struct list_head *head)
92991+{
92992+ __pax_list_add_rcu(new, head->prev, head);
92993+}
92994+
92995 /**
92996 * list_del_rcu - deletes entry from list without re-initialization
92997 * @entry: the element to delete from the list.
92998@@ -132,6 +146,8 @@ static inline void list_del_rcu(struct list_head *entry)
92999 entry->prev = LIST_POISON2;
93000 }
93001
93002+extern void pax_list_del_rcu(struct list_head *entry);
93003+
93004 /**
93005 * hlist_del_init_rcu - deletes entry from hash list with re-initialization
93006 * @n: the element to delete from the hash list.
93007diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
93008index 7809749..1cd9315 100644
93009--- a/include/linux/rcupdate.h
93010+++ b/include/linux/rcupdate.h
93011@@ -333,7 +333,7 @@ extern struct srcu_struct tasks_rcu_exit_srcu;
93012 do { \
93013 rcu_all_qs(); \
93014 if (ACCESS_ONCE((t)->rcu_tasks_holdout)) \
93015- ACCESS_ONCE((t)->rcu_tasks_holdout) = false; \
93016+ ACCESS_ONCE_RW((t)->rcu_tasks_holdout) = false; \
93017 } while (0)
93018 #else /* #ifdef CONFIG_TASKS_RCU */
93019 #define TASKS_RCU(x) do { } while (0)
93020diff --git a/include/linux/reboot.h b/include/linux/reboot.h
93021index 67fc8fc..a90f7d8 100644
93022--- a/include/linux/reboot.h
93023+++ b/include/linux/reboot.h
93024@@ -47,9 +47,9 @@ extern void do_kernel_restart(char *cmd);
93025 */
93026
93027 extern void migrate_to_reboot_cpu(void);
93028-extern void machine_restart(char *cmd);
93029-extern void machine_halt(void);
93030-extern void machine_power_off(void);
93031+extern void machine_restart(char *cmd) __noreturn;
93032+extern void machine_halt(void) __noreturn;
93033+extern void machine_power_off(void) __noreturn;
93034
93035 extern void machine_shutdown(void);
93036 struct pt_regs;
93037@@ -60,9 +60,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
93038 */
93039
93040 extern void kernel_restart_prepare(char *cmd);
93041-extern void kernel_restart(char *cmd);
93042-extern void kernel_halt(void);
93043-extern void kernel_power_off(void);
93044+extern void kernel_restart(char *cmd) __noreturn;
93045+extern void kernel_halt(void) __noreturn;
93046+extern void kernel_power_off(void) __noreturn;
93047
93048 extern int C_A_D; /* for sysctl */
93049 void ctrl_alt_del(void);
93050@@ -76,7 +76,7 @@ extern int orderly_poweroff(bool force);
93051 * Emergency restart, callable from an interrupt handler.
93052 */
93053
93054-extern void emergency_restart(void);
93055+extern void emergency_restart(void) __noreturn;
93056 #include <asm/emergency-restart.h>
93057
93058 #endif /* _LINUX_REBOOT_H */
93059diff --git a/include/linux/regset.h b/include/linux/regset.h
93060index 8e0c9fe..ac4d221 100644
93061--- a/include/linux/regset.h
93062+++ b/include/linux/regset.h
93063@@ -161,7 +161,8 @@ struct user_regset {
93064 unsigned int align;
93065 unsigned int bias;
93066 unsigned int core_note_type;
93067-};
93068+} __do_const;
93069+typedef struct user_regset __no_const user_regset_no_const;
93070
93071 /**
93072 * struct user_regset_view - available regsets
93073diff --git a/include/linux/relay.h b/include/linux/relay.h
93074index d7c8359..818daf5 100644
93075--- a/include/linux/relay.h
93076+++ b/include/linux/relay.h
93077@@ -157,7 +157,7 @@ struct rchan_callbacks
93078 * The callback should return 0 if successful, negative if not.
93079 */
93080 int (*remove_buf_file)(struct dentry *dentry);
93081-};
93082+} __no_const;
93083
93084 /*
93085 * CONFIG_RELAY kernel API, kernel/relay.c
93086diff --git a/include/linux/rio.h b/include/linux/rio.h
93087index 6bda06f..bf39a9b 100644
93088--- a/include/linux/rio.h
93089+++ b/include/linux/rio.h
93090@@ -358,7 +358,7 @@ struct rio_ops {
93091 int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart,
93092 u64 rstart, u32 size, u32 flags);
93093 void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
93094-};
93095+} __no_const;
93096
93097 #define RIO_RESOURCE_MEM 0x00000100
93098 #define RIO_RESOURCE_DOORBELL 0x00000200
93099diff --git a/include/linux/rmap.h b/include/linux/rmap.h
93100index c4c559a..6ba9a26 100644
93101--- a/include/linux/rmap.h
93102+++ b/include/linux/rmap.h
93103@@ -154,8 +154,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
93104 void anon_vma_init(void); /* create anon_vma_cachep */
93105 int anon_vma_prepare(struct vm_area_struct *);
93106 void unlink_anon_vmas(struct vm_area_struct *);
93107-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
93108-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
93109+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
93110+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
93111
93112 static inline void anon_vma_merge(struct vm_area_struct *vma,
93113 struct vm_area_struct *next)
93114diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
93115index ed8f9e70..999bc96 100644
93116--- a/include/linux/scatterlist.h
93117+++ b/include/linux/scatterlist.h
93118@@ -1,6 +1,7 @@
93119 #ifndef _LINUX_SCATTERLIST_H
93120 #define _LINUX_SCATTERLIST_H
93121
93122+#include <linux/sched.h>
93123 #include <linux/string.h>
93124 #include <linux/bug.h>
93125 #include <linux/mm.h>
93126@@ -114,6 +115,12 @@ static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
93127 #ifdef CONFIG_DEBUG_SG
93128 BUG_ON(!virt_addr_valid(buf));
93129 #endif
93130+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93131+ if (object_starts_on_stack(buf)) {
93132+ void *adjbuf = buf - current->stack + current->lowmem_stack;
93133+ sg_set_page(sg, virt_to_page(adjbuf), buflen, offset_in_page(adjbuf));
93134+ } else
93135+#endif
93136 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
93137 }
93138
93139diff --git a/include/linux/sched.h b/include/linux/sched.h
93140index 51348f7..8c8b0ba 100644
93141--- a/include/linux/sched.h
93142+++ b/include/linux/sched.h
93143@@ -133,6 +133,7 @@ struct fs_struct;
93144 struct perf_event_context;
93145 struct blk_plug;
93146 struct filename;
93147+struct linux_binprm;
93148
93149 #define VMACACHE_BITS 2
93150 #define VMACACHE_SIZE (1U << VMACACHE_BITS)
93151@@ -420,7 +421,7 @@ extern char __sched_text_start[], __sched_text_end[];
93152 extern int in_sched_functions(unsigned long addr);
93153
93154 #define MAX_SCHEDULE_TIMEOUT LONG_MAX
93155-extern signed long schedule_timeout(signed long timeout);
93156+extern signed long schedule_timeout(signed long timeout) __intentional_overflow(-1);
93157 extern signed long schedule_timeout_interruptible(signed long timeout);
93158 extern signed long schedule_timeout_killable(signed long timeout);
93159 extern signed long schedule_timeout_uninterruptible(signed long timeout);
93160@@ -438,6 +439,19 @@ struct nsproxy;
93161 struct user_namespace;
93162
93163 #ifdef CONFIG_MMU
93164+
93165+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
93166+extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
93167+#else
93168+static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
93169+{
93170+ return 0;
93171+}
93172+#endif
93173+
93174+extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
93175+extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
93176+
93177 extern void arch_pick_mmap_layout(struct mm_struct *mm);
93178 extern unsigned long
93179 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
93180@@ -736,6 +750,17 @@ struct signal_struct {
93181 #ifdef CONFIG_TASKSTATS
93182 struct taskstats *stats;
93183 #endif
93184+
93185+#ifdef CONFIG_GRKERNSEC
93186+ u32 curr_ip;
93187+ u32 saved_ip;
93188+ u32 gr_saddr;
93189+ u32 gr_daddr;
93190+ u16 gr_sport;
93191+ u16 gr_dport;
93192+ u8 used_accept:1;
93193+#endif
93194+
93195 #ifdef CONFIG_AUDIT
93196 unsigned audit_tty;
93197 unsigned audit_tty_log_passwd;
93198@@ -762,7 +787,7 @@ struct signal_struct {
93199 struct mutex cred_guard_mutex; /* guard against foreign influences on
93200 * credential calculations
93201 * (notably. ptrace) */
93202-};
93203+} __randomize_layout;
93204
93205 /*
93206 * Bits in flags field of signal_struct.
93207@@ -815,6 +840,14 @@ struct user_struct {
93208 struct key *session_keyring; /* UID's default session keyring */
93209 #endif
93210
93211+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
93212+ unsigned char kernel_banned;
93213+#endif
93214+#ifdef CONFIG_GRKERNSEC_BRUTE
93215+ unsigned char suid_banned;
93216+ unsigned long suid_ban_expires;
93217+#endif
93218+
93219 /* Hash table maintenance information */
93220 struct hlist_node uidhash_node;
93221 kuid_t uid;
93222@@ -822,7 +855,7 @@ struct user_struct {
93223 #ifdef CONFIG_PERF_EVENTS
93224 atomic_long_t locked_vm;
93225 #endif
93226-};
93227+} __randomize_layout;
93228
93229 extern int uids_sysfs_init(void);
93230
93231@@ -1286,6 +1319,9 @@ enum perf_event_task_context {
93232 struct task_struct {
93233 volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
93234 void *stack;
93235+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93236+ void *lowmem_stack;
93237+#endif
93238 atomic_t usage;
93239 unsigned int flags; /* per process flags, defined below */
93240 unsigned int ptrace;
93241@@ -1419,8 +1455,8 @@ struct task_struct {
93242 struct list_head thread_node;
93243
93244 struct completion *vfork_done; /* for vfork() */
93245- int __user *set_child_tid; /* CLONE_CHILD_SETTID */
93246- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
93247+ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
93248+ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
93249
93250 cputime_t utime, stime, utimescaled, stimescaled;
93251 cputime_t gtime;
93252@@ -1445,11 +1481,6 @@ struct task_struct {
93253 struct task_cputime cputime_expires;
93254 struct list_head cpu_timers[3];
93255
93256-/* process credentials */
93257- const struct cred __rcu *real_cred; /* objective and real subjective task
93258- * credentials (COW) */
93259- const struct cred __rcu *cred; /* effective (overridable) subjective task
93260- * credentials (COW) */
93261 char comm[TASK_COMM_LEN]; /* executable name excluding path
93262 - access with [gs]et_task_comm (which lock
93263 it with task_lock())
93264@@ -1467,6 +1498,10 @@ struct task_struct {
93265 #endif
93266 /* CPU-specific state of this task */
93267 struct thread_struct thread;
93268+/* thread_info moved to task_struct */
93269+#ifdef CONFIG_X86
93270+ struct thread_info tinfo;
93271+#endif
93272 /* filesystem information */
93273 struct fs_struct *fs;
93274 /* open file information */
93275@@ -1541,6 +1576,10 @@ struct task_struct {
93276 gfp_t lockdep_reclaim_gfp;
93277 #endif
93278
93279+/* process credentials */
93280+ const struct cred __rcu *real_cred; /* objective and real subjective task
93281+ * credentials (COW) */
93282+
93283 /* journalling filesystem info */
93284 void *journal_info;
93285
93286@@ -1579,6 +1618,10 @@ struct task_struct {
93287 /* cg_list protected by css_set_lock and tsk->alloc_lock */
93288 struct list_head cg_list;
93289 #endif
93290+
93291+ const struct cred __rcu *cred; /* effective (overridable) subjective task
93292+ * credentials (COW) */
93293+
93294 #ifdef CONFIG_FUTEX
93295 struct robust_list_head __user *robust_list;
93296 #ifdef CONFIG_COMPAT
93297@@ -1690,7 +1733,7 @@ struct task_struct {
93298 * Number of functions that haven't been traced
93299 * because of depth overrun.
93300 */
93301- atomic_t trace_overrun;
93302+ atomic_unchecked_t trace_overrun;
93303 /* Pause for the tracing */
93304 atomic_t tracing_graph_pause;
93305 #endif
93306@@ -1718,7 +1761,78 @@ struct task_struct {
93307 #ifdef CONFIG_DEBUG_ATOMIC_SLEEP
93308 unsigned long task_state_change;
93309 #endif
93310-};
93311+
93312+#ifdef CONFIG_GRKERNSEC
93313+ /* grsecurity */
93314+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
93315+ u64 exec_id;
93316+#endif
93317+#ifdef CONFIG_GRKERNSEC_SETXID
93318+ const struct cred *delayed_cred;
93319+#endif
93320+ struct dentry *gr_chroot_dentry;
93321+ struct acl_subject_label *acl;
93322+ struct acl_subject_label *tmpacl;
93323+ struct acl_role_label *role;
93324+ struct file *exec_file;
93325+ unsigned long brute_expires;
93326+ u16 acl_role_id;
93327+ u8 inherited;
93328+ /* is this the task that authenticated to the special role */
93329+ u8 acl_sp_role;
93330+ u8 is_writable;
93331+ u8 brute;
93332+ u8 gr_is_chrooted;
93333+#endif
93334+
93335+} __randomize_layout;
93336+
93337+#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
93338+#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
93339+#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
93340+#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
93341+/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
93342+#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
93343+
93344+#ifdef CONFIG_PAX_SOFTMODE
93345+extern int pax_softmode;
93346+#endif
93347+
93348+extern int pax_check_flags(unsigned long *);
93349+#define PAX_PARSE_FLAGS_FALLBACK (~0UL)
93350+
93351+/* if tsk != current then task_lock must be held on it */
93352+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
93353+static inline unsigned long pax_get_flags(struct task_struct *tsk)
93354+{
93355+ if (likely(tsk->mm))
93356+ return tsk->mm->pax_flags;
93357+ else
93358+ return 0UL;
93359+}
93360+
93361+/* if tsk != current then task_lock must be held on it */
93362+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
93363+{
93364+ if (likely(tsk->mm)) {
93365+ tsk->mm->pax_flags = flags;
93366+ return 0;
93367+ }
93368+ return -EINVAL;
93369+}
93370+#endif
93371+
93372+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
93373+extern void pax_set_initial_flags(struct linux_binprm *bprm);
93374+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
93375+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
93376+#endif
93377+
93378+struct path;
93379+extern char *pax_get_path(const struct path *path, char *buf, int buflen);
93380+extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
93381+extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
93382+extern void pax_report_refcount_overflow(struct pt_regs *regs);
93383
93384 /* Future-safe accessor for struct task_struct's cpus_allowed. */
93385 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
93386@@ -1801,7 +1915,7 @@ struct pid_namespace;
93387 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
93388 struct pid_namespace *ns);
93389
93390-static inline pid_t task_pid_nr(struct task_struct *tsk)
93391+static inline pid_t task_pid_nr(const struct task_struct *tsk)
93392 {
93393 return tsk->pid;
93394 }
93395@@ -2169,6 +2283,25 @@ extern u64 sched_clock_cpu(int cpu);
93396
93397 extern void sched_clock_init(void);
93398
93399+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93400+static inline void populate_stack(void)
93401+{
93402+ struct task_struct *curtask = current;
93403+ int c;
93404+ int *ptr = curtask->stack;
93405+ int *end = curtask->stack + THREAD_SIZE;
93406+
93407+ while (ptr < end) {
93408+ c = *(volatile int *)ptr;
93409+ ptr += PAGE_SIZE/sizeof(int);
93410+ }
93411+}
93412+#else
93413+static inline void populate_stack(void)
93414+{
93415+}
93416+#endif
93417+
93418 #ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
93419 static inline void sched_clock_tick(void)
93420 {
93421@@ -2302,7 +2435,9 @@ void yield(void);
93422 extern struct exec_domain default_exec_domain;
93423
93424 union thread_union {
93425+#ifndef CONFIG_X86
93426 struct thread_info thread_info;
93427+#endif
93428 unsigned long stack[THREAD_SIZE/sizeof(long)];
93429 };
93430
93431@@ -2335,6 +2470,7 @@ extern struct pid_namespace init_pid_ns;
93432 */
93433
93434 extern struct task_struct *find_task_by_vpid(pid_t nr);
93435+extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
93436 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
93437 struct pid_namespace *ns);
93438
93439@@ -2499,7 +2635,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
93440 extern void exit_itimers(struct signal_struct *);
93441 extern void flush_itimer_signals(void);
93442
93443-extern void do_group_exit(int);
93444+extern __noreturn void do_group_exit(int);
93445
93446 extern int do_execve(struct filename *,
93447 const char __user * const __user *,
93448@@ -2720,9 +2856,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
93449 #define task_stack_end_corrupted(task) \
93450 (*(end_of_stack(task)) != STACK_END_MAGIC)
93451
93452-static inline int object_is_on_stack(void *obj)
93453+static inline int object_starts_on_stack(const void *obj)
93454 {
93455- void *stack = task_stack_page(current);
93456+ const void *stack = task_stack_page(current);
93457
93458 return (obj >= stack) && (obj < (stack + THREAD_SIZE));
93459 }
93460diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
93461index 596a0e0..bea77ec 100644
93462--- a/include/linux/sched/sysctl.h
93463+++ b/include/linux/sched/sysctl.h
93464@@ -34,6 +34,7 @@ enum { sysctl_hung_task_timeout_secs = 0 };
93465 #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
93466
93467 extern int sysctl_max_map_count;
93468+extern unsigned long sysctl_heap_stack_gap;
93469
93470 extern unsigned int sysctl_sched_latency;
93471 extern unsigned int sysctl_sched_min_granularity;
93472diff --git a/include/linux/security.h b/include/linux/security.h
93473index a1b7dbd..036f47f 100644
93474--- a/include/linux/security.h
93475+++ b/include/linux/security.h
93476@@ -27,6 +27,7 @@
93477 #include <linux/slab.h>
93478 #include <linux/err.h>
93479 #include <linux/string.h>
93480+#include <linux/grsecurity.h>
93481
93482 struct linux_binprm;
93483 struct cred;
93484@@ -116,8 +117,6 @@ struct seq_file;
93485
93486 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
93487
93488-void reset_security_ops(void);
93489-
93490 #ifdef CONFIG_MMU
93491 extern unsigned long mmap_min_addr;
93492 extern unsigned long dac_mmap_min_addr;
93493@@ -1756,7 +1755,7 @@ struct security_operations {
93494 struct audit_context *actx);
93495 void (*audit_rule_free) (void *lsmrule);
93496 #endif /* CONFIG_AUDIT */
93497-};
93498+} __randomize_layout;
93499
93500 /* prototypes */
93501 extern int security_init(void);
93502diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
93503index dc368b8..e895209 100644
93504--- a/include/linux/semaphore.h
93505+++ b/include/linux/semaphore.h
93506@@ -37,7 +37,7 @@ static inline void sema_init(struct semaphore *sem, int val)
93507 }
93508
93509 extern void down(struct semaphore *sem);
93510-extern int __must_check down_interruptible(struct semaphore *sem);
93511+extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
93512 extern int __must_check down_killable(struct semaphore *sem);
93513 extern int __must_check down_trylock(struct semaphore *sem);
93514 extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
93515diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
93516index afbb1fd..e1d205d 100644
93517--- a/include/linux/seq_file.h
93518+++ b/include/linux/seq_file.h
93519@@ -27,6 +27,9 @@ struct seq_file {
93520 struct mutex lock;
93521 const struct seq_operations *op;
93522 int poll_event;
93523+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
93524+ u64 exec_id;
93525+#endif
93526 #ifdef CONFIG_USER_NS
93527 struct user_namespace *user_ns;
93528 #endif
93529@@ -39,6 +42,7 @@ struct seq_operations {
93530 void * (*next) (struct seq_file *m, void *v, loff_t *pos);
93531 int (*show) (struct seq_file *m, void *v);
93532 };
93533+typedef struct seq_operations __no_const seq_operations_no_const;
93534
93535 #define SEQ_SKIP 1
93536
93537@@ -111,6 +115,7 @@ void seq_pad(struct seq_file *m, char c);
93538
93539 char *mangle_path(char *s, const char *p, const char *esc);
93540 int seq_open(struct file *, const struct seq_operations *);
93541+int seq_open_restrict(struct file *, const struct seq_operations *);
93542 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
93543 loff_t seq_lseek(struct file *, loff_t, int);
93544 int seq_release(struct inode *, struct file *);
93545@@ -128,6 +133,7 @@ int seq_path_root(struct seq_file *m, const struct path *path,
93546 const struct path *root, const char *esc);
93547
93548 int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
93549+int single_open_restrict(struct file *, int (*)(struct seq_file *, void *), void *);
93550 int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
93551 int single_release(struct inode *, struct file *);
93552 void *__seq_open_private(struct file *, const struct seq_operations *, int);
93553diff --git a/include/linux/shm.h b/include/linux/shm.h
93554index 6fb8016..ab4465e 100644
93555--- a/include/linux/shm.h
93556+++ b/include/linux/shm.h
93557@@ -22,6 +22,10 @@ struct shmid_kernel /* private to the kernel */
93558 /* The task created the shm object. NULL if the task is dead. */
93559 struct task_struct *shm_creator;
93560 struct list_head shm_clist; /* list by creator */
93561+#ifdef CONFIG_GRKERNSEC
93562+ u64 shm_createtime;
93563+ pid_t shm_lapid;
93564+#endif
93565 };
93566
93567 /* shm_mode upper byte flags */
93568diff --git a/include/linux/signal.h b/include/linux/signal.h
93569index ab1e039..ad4229e 100644
93570--- a/include/linux/signal.h
93571+++ b/include/linux/signal.h
93572@@ -289,7 +289,7 @@ static inline void allow_signal(int sig)
93573 * know it'll be handled, so that they don't get converted to
93574 * SIGKILL or just silently dropped.
93575 */
93576- kernel_sigaction(sig, (__force __sighandler_t)2);
93577+ kernel_sigaction(sig, (__force_user __sighandler_t)2);
93578 }
93579
93580 static inline void disallow_signal(int sig)
93581diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
93582index bdccc4b..e9f8670 100644
93583--- a/include/linux/skbuff.h
93584+++ b/include/linux/skbuff.h
93585@@ -771,7 +771,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
93586 int node);
93587 struct sk_buff *__build_skb(void *data, unsigned int frag_size);
93588 struct sk_buff *build_skb(void *data, unsigned int frag_size);
93589-static inline struct sk_buff *alloc_skb(unsigned int size,
93590+static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
93591 gfp_t priority)
93592 {
93593 return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
93594@@ -1967,7 +1967,7 @@ static inline u32 skb_inner_network_header_len(const struct sk_buff *skb)
93595 return skb->inner_transport_header - skb->inner_network_header;
93596 }
93597
93598-static inline int skb_network_offset(const struct sk_buff *skb)
93599+static inline int __intentional_overflow(0) skb_network_offset(const struct sk_buff *skb)
93600 {
93601 return skb_network_header(skb) - skb->data;
93602 }
93603@@ -2027,7 +2027,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
93604 * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
93605 */
93606 #ifndef NET_SKB_PAD
93607-#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
93608+#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES)
93609 #endif
93610
93611 int ___pskb_trim(struct sk_buff *skb, unsigned int len);
93612@@ -2669,9 +2669,9 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
93613 int *err);
93614 unsigned int datagram_poll(struct file *file, struct socket *sock,
93615 struct poll_table_struct *wait);
93616-int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
93617+int __intentional_overflow(0) skb_copy_datagram_iter(const struct sk_buff *from, int offset,
93618 struct iov_iter *to, int size);
93619-static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
93620+static inline int __intentional_overflow(2,4) skb_copy_datagram_msg(const struct sk_buff *from, int offset,
93621 struct msghdr *msg, int size)
93622 {
93623 return skb_copy_datagram_iter(from, offset, &msg->msg_iter, size);
93624@@ -3193,6 +3193,9 @@ static inline void nf_reset(struct sk_buff *skb)
93625 nf_bridge_put(skb->nf_bridge);
93626 skb->nf_bridge = NULL;
93627 #endif
93628+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
93629+ skb->nf_trace = 0;
93630+#endif
93631 }
93632
93633 static inline void nf_reset_trace(struct sk_buff *skb)
93634diff --git a/include/linux/slab.h b/include/linux/slab.h
93635index 76f1fee..d95e6d2 100644
93636--- a/include/linux/slab.h
93637+++ b/include/linux/slab.h
93638@@ -14,15 +14,29 @@
93639 #include <linux/gfp.h>
93640 #include <linux/types.h>
93641 #include <linux/workqueue.h>
93642-
93643+#include <linux/err.h>
93644
93645 /*
93646 * Flags to pass to kmem_cache_create().
93647 * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
93648 */
93649 #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */
93650+
93651+#ifdef CONFIG_PAX_USERCOPY_SLABS
93652+#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */
93653+#else
93654+#define SLAB_USERCOPY 0x00000000UL
93655+#endif
93656+
93657 #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */
93658 #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */
93659+
93660+#ifdef CONFIG_PAX_MEMORY_SANITIZE
93661+#define SLAB_NO_SANITIZE 0x00001000UL /* PaX: Do not sanitize objs on free */
93662+#else
93663+#define SLAB_NO_SANITIZE 0x00000000UL
93664+#endif
93665+
93666 #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */
93667 #define SLAB_CACHE_DMA 0x00004000UL /* Use GFP_DMA memory */
93668 #define SLAB_STORE_USER 0x00010000UL /* DEBUG: Store the last owner for bug hunting */
93669@@ -98,10 +112,13 @@
93670 * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
93671 * Both make kfree a no-op.
93672 */
93673-#define ZERO_SIZE_PTR ((void *)16)
93674+#define ZERO_SIZE_PTR \
93675+({ \
93676+ BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
93677+ (void *)(-MAX_ERRNO-1L); \
93678+})
93679
93680-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
93681- (unsigned long)ZERO_SIZE_PTR)
93682+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
93683
93684 #include <linux/kmemleak.h>
93685 #include <linux/kasan.h>
93686@@ -143,6 +160,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
93687 void kfree(const void *);
93688 void kzfree(const void *);
93689 size_t ksize(const void *);
93690+const char *check_heap_object(const void *ptr, unsigned long n);
93691+bool is_usercopy_object(const void *ptr);
93692
93693 /*
93694 * Some archs want to perform DMA into kmalloc caches and need a guaranteed
93695@@ -235,6 +254,10 @@ extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
93696 extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
93697 #endif
93698
93699+#ifdef CONFIG_PAX_USERCOPY_SLABS
93700+extern struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
93701+#endif
93702+
93703 /*
93704 * Figure out which kmalloc slab an allocation of a certain size
93705 * belongs to.
93706@@ -243,7 +266,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
93707 * 2 = 120 .. 192 bytes
93708 * n = 2^(n-1) .. 2^n -1
93709 */
93710-static __always_inline int kmalloc_index(size_t size)
93711+static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
93712 {
93713 if (!size)
93714 return 0;
93715@@ -286,15 +309,15 @@ static __always_inline int kmalloc_index(size_t size)
93716 }
93717 #endif /* !CONFIG_SLOB */
93718
93719-void *__kmalloc(size_t size, gfp_t flags);
93720+void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1);
93721 void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags);
93722 void kmem_cache_free(struct kmem_cache *, void *);
93723
93724 #ifdef CONFIG_NUMA
93725-void *__kmalloc_node(size_t size, gfp_t flags, int node);
93726+void *__kmalloc_node(size_t size, gfp_t flags, int node) __alloc_size(1) __size_overflow(1);
93727 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
93728 #else
93729-static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
93730+static __always_inline void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
93731 {
93732 return __kmalloc(size, flags);
93733 }
93734diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
93735index 33d0490..70a6313 100644
93736--- a/include/linux/slab_def.h
93737+++ b/include/linux/slab_def.h
93738@@ -40,7 +40,7 @@ struct kmem_cache {
93739 /* 4) cache creation/removal */
93740 const char *name;
93741 struct list_head list;
93742- int refcount;
93743+ atomic_t refcount;
93744 int object_size;
93745 int align;
93746
93747@@ -56,10 +56,14 @@ struct kmem_cache {
93748 unsigned long node_allocs;
93749 unsigned long node_frees;
93750 unsigned long node_overflow;
93751- atomic_t allochit;
93752- atomic_t allocmiss;
93753- atomic_t freehit;
93754- atomic_t freemiss;
93755+ atomic_unchecked_t allochit;
93756+ atomic_unchecked_t allocmiss;
93757+ atomic_unchecked_t freehit;
93758+ atomic_unchecked_t freemiss;
93759+#ifdef CONFIG_PAX_MEMORY_SANITIZE
93760+ atomic_unchecked_t sanitized;
93761+ atomic_unchecked_t not_sanitized;
93762+#endif
93763
93764 /*
93765 * If debugging is enabled, then the allocator can add additional
93766diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
93767index 3388511..6252f90 100644
93768--- a/include/linux/slub_def.h
93769+++ b/include/linux/slub_def.h
93770@@ -74,7 +74,7 @@ struct kmem_cache {
93771 struct kmem_cache_order_objects max;
93772 struct kmem_cache_order_objects min;
93773 gfp_t allocflags; /* gfp flags to use on each alloc */
93774- int refcount; /* Refcount for slab cache destroy */
93775+ atomic_t refcount; /* Refcount for slab cache destroy */
93776 void (*ctor)(void *);
93777 int inuse; /* Offset to metadata */
93778 int align; /* Alignment */
93779diff --git a/include/linux/smp.h b/include/linux/smp.h
93780index be91db2..3f23232 100644
93781--- a/include/linux/smp.h
93782+++ b/include/linux/smp.h
93783@@ -183,7 +183,9 @@ static inline void smp_init(void) { }
93784 #endif
93785
93786 #define get_cpu() ({ preempt_disable(); smp_processor_id(); })
93787+#define raw_get_cpu() ({ raw_preempt_disable(); raw_smp_processor_id(); })
93788 #define put_cpu() preempt_enable()
93789+#define raw_put_cpu_no_resched() raw_preempt_enable_no_resched()
93790
93791 /*
93792 * Callback to arch code if there's nosmp or maxcpus=0 on the
93793diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
93794index 46cca4c..3323536 100644
93795--- a/include/linux/sock_diag.h
93796+++ b/include/linux/sock_diag.h
93797@@ -11,7 +11,7 @@ struct sock;
93798 struct sock_diag_handler {
93799 __u8 family;
93800 int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
93801-};
93802+} __do_const;
93803
93804 int sock_diag_register(const struct sock_diag_handler *h);
93805 void sock_diag_unregister(const struct sock_diag_handler *h);
93806diff --git a/include/linux/sonet.h b/include/linux/sonet.h
93807index 680f9a3..f13aeb0 100644
93808--- a/include/linux/sonet.h
93809+++ b/include/linux/sonet.h
93810@@ -7,7 +7,7 @@
93811 #include <uapi/linux/sonet.h>
93812
93813 struct k_sonet_stats {
93814-#define __HANDLE_ITEM(i) atomic_t i
93815+#define __HANDLE_ITEM(i) atomic_unchecked_t i
93816 __SONET_ITEMS
93817 #undef __HANDLE_ITEM
93818 };
93819diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
93820index 07d8e53..dc934c9 100644
93821--- a/include/linux/sunrpc/addr.h
93822+++ b/include/linux/sunrpc/addr.h
93823@@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
93824 {
93825 switch (sap->sa_family) {
93826 case AF_INET:
93827- return ntohs(((struct sockaddr_in *)sap)->sin_port);
93828+ return ntohs(((const struct sockaddr_in *)sap)->sin_port);
93829 case AF_INET6:
93830- return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
93831+ return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
93832 }
93833 return 0;
93834 }
93835@@ -58,7 +58,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
93836 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
93837 const struct sockaddr *src)
93838 {
93839- const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
93840+ const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
93841 struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
93842
93843 dsin->sin_family = ssin->sin_family;
93844@@ -164,7 +164,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
93845 if (sa->sa_family != AF_INET6)
93846 return 0;
93847
93848- return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
93849+ return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
93850 }
93851
93852 #endif /* _LINUX_SUNRPC_ADDR_H */
93853diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
93854index 598ba80..d90cba6 100644
93855--- a/include/linux/sunrpc/clnt.h
93856+++ b/include/linux/sunrpc/clnt.h
93857@@ -100,7 +100,7 @@ struct rpc_procinfo {
93858 unsigned int p_timer; /* Which RTT timer to use */
93859 u32 p_statidx; /* Which procedure to account */
93860 const char * p_name; /* name of procedure */
93861-};
93862+} __do_const;
93863
93864 #ifdef __KERNEL__
93865
93866diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
93867index fae6fb9..023fbcd 100644
93868--- a/include/linux/sunrpc/svc.h
93869+++ b/include/linux/sunrpc/svc.h
93870@@ -420,7 +420,7 @@ struct svc_procedure {
93871 unsigned int pc_count; /* call count */
93872 unsigned int pc_cachetype; /* cache info (NFS) */
93873 unsigned int pc_xdrressize; /* maximum size of XDR reply */
93874-};
93875+} __do_const;
93876
93877 /*
93878 * Function prototypes.
93879diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
93880index df8edf8..d140fec 100644
93881--- a/include/linux/sunrpc/svc_rdma.h
93882+++ b/include/linux/sunrpc/svc_rdma.h
93883@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
93884 extern unsigned int svcrdma_max_requests;
93885 extern unsigned int svcrdma_max_req_size;
93886
93887-extern atomic_t rdma_stat_recv;
93888-extern atomic_t rdma_stat_read;
93889-extern atomic_t rdma_stat_write;
93890-extern atomic_t rdma_stat_sq_starve;
93891-extern atomic_t rdma_stat_rq_starve;
93892-extern atomic_t rdma_stat_rq_poll;
93893-extern atomic_t rdma_stat_rq_prod;
93894-extern atomic_t rdma_stat_sq_poll;
93895-extern atomic_t rdma_stat_sq_prod;
93896+extern atomic_unchecked_t rdma_stat_recv;
93897+extern atomic_unchecked_t rdma_stat_read;
93898+extern atomic_unchecked_t rdma_stat_write;
93899+extern atomic_unchecked_t rdma_stat_sq_starve;
93900+extern atomic_unchecked_t rdma_stat_rq_starve;
93901+extern atomic_unchecked_t rdma_stat_rq_poll;
93902+extern atomic_unchecked_t rdma_stat_rq_prod;
93903+extern atomic_unchecked_t rdma_stat_sq_poll;
93904+extern atomic_unchecked_t rdma_stat_sq_prod;
93905
93906 /*
93907 * Contexts are built when an RDMA request is created and are a
93908diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
93909index 8d71d65..f79586e 100644
93910--- a/include/linux/sunrpc/svcauth.h
93911+++ b/include/linux/sunrpc/svcauth.h
93912@@ -120,7 +120,7 @@ struct auth_ops {
93913 int (*release)(struct svc_rqst *rq);
93914 void (*domain_release)(struct auth_domain *);
93915 int (*set_client)(struct svc_rqst *rq);
93916-};
93917+} __do_const;
93918
93919 #define SVC_GARBAGE 1
93920 #define SVC_SYSERR 2
93921diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
93922index e7a018e..49f8b17 100644
93923--- a/include/linux/swiotlb.h
93924+++ b/include/linux/swiotlb.h
93925@@ -60,7 +60,8 @@ extern void
93926
93927 extern void
93928 swiotlb_free_coherent(struct device *hwdev, size_t size,
93929- void *vaddr, dma_addr_t dma_handle);
93930+ void *vaddr, dma_addr_t dma_handle,
93931+ struct dma_attrs *attrs);
93932
93933 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
93934 unsigned long offset, size_t size,
93935diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
93936index 76d1e38..200776e 100644
93937--- a/include/linux/syscalls.h
93938+++ b/include/linux/syscalls.h
93939@@ -102,7 +102,12 @@ union bpf_attr;
93940 #define __TYPE_IS_L(t) (__same_type((t)0, 0L))
93941 #define __TYPE_IS_UL(t) (__same_type((t)0, 0UL))
93942 #define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
93943-#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
93944+#define __SC_LONG(t, a) __typeof__( \
93945+ __builtin_choose_expr( \
93946+ sizeof(t) > sizeof(int), \
93947+ (t) 0, \
93948+ __builtin_choose_expr(__type_is_unsigned(t), 0UL, 0L) \
93949+ )) a
93950 #define __SC_CAST(t, a) (t) a
93951 #define __SC_ARGS(t, a) a
93952 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
93953@@ -384,11 +389,11 @@ asmlinkage long sys_sync(void);
93954 asmlinkage long sys_fsync(unsigned int fd);
93955 asmlinkage long sys_fdatasync(unsigned int fd);
93956 asmlinkage long sys_bdflush(int func, long data);
93957-asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
93958- char __user *type, unsigned long flags,
93959+asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
93960+ const char __user *type, unsigned long flags,
93961 void __user *data);
93962-asmlinkage long sys_umount(char __user *name, int flags);
93963-asmlinkage long sys_oldumount(char __user *name);
93964+asmlinkage long sys_umount(const char __user *name, int flags);
93965+asmlinkage long sys_oldumount(const char __user *name);
93966 asmlinkage long sys_truncate(const char __user *path, long length);
93967 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
93968 asmlinkage long sys_stat(const char __user *filename,
93969@@ -604,7 +609,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
93970 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
93971 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
93972 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
93973- struct sockaddr __user *, int);
93974+ struct sockaddr __user *, int) __intentional_overflow(0);
93975 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
93976 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
93977 unsigned int vlen, unsigned flags);
93978@@ -663,10 +668,10 @@ asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
93979
93980 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
93981 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
93982- unsigned nsops);
93983+ long nsops);
93984 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
93985 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
93986- unsigned nsops,
93987+ long nsops,
93988 const struct timespec __user *timeout);
93989 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
93990 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
93991diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
93992index 27b3b0b..e093dd9 100644
93993--- a/include/linux/syscore_ops.h
93994+++ b/include/linux/syscore_ops.h
93995@@ -16,7 +16,7 @@ struct syscore_ops {
93996 int (*suspend)(void);
93997 void (*resume)(void);
93998 void (*shutdown)(void);
93999-};
94000+} __do_const;
94001
94002 extern void register_syscore_ops(struct syscore_ops *ops);
94003 extern void unregister_syscore_ops(struct syscore_ops *ops);
94004diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
94005index b7361f8..341a15a 100644
94006--- a/include/linux/sysctl.h
94007+++ b/include/linux/sysctl.h
94008@@ -39,6 +39,8 @@ typedef int proc_handler (struct ctl_table *ctl, int write,
94009
94010 extern int proc_dostring(struct ctl_table *, int,
94011 void __user *, size_t *, loff_t *);
94012+extern int proc_dostring_modpriv(struct ctl_table *, int,
94013+ void __user *, size_t *, loff_t *);
94014 extern int proc_dointvec(struct ctl_table *, int,
94015 void __user *, size_t *, loff_t *);
94016 extern int proc_dointvec_minmax(struct ctl_table *, int,
94017@@ -113,7 +115,8 @@ struct ctl_table
94018 struct ctl_table_poll *poll;
94019 void *extra1;
94020 void *extra2;
94021-};
94022+} __do_const __randomize_layout;
94023+typedef struct ctl_table __no_const ctl_table_no_const;
94024
94025 struct ctl_node {
94026 struct rb_node node;
94027diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
94028index ddad161..a3efd26 100644
94029--- a/include/linux/sysfs.h
94030+++ b/include/linux/sysfs.h
94031@@ -34,7 +34,8 @@ struct attribute {
94032 struct lock_class_key *key;
94033 struct lock_class_key skey;
94034 #endif
94035-};
94036+} __do_const;
94037+typedef struct attribute __no_const attribute_no_const;
94038
94039 /**
94040 * sysfs_attr_init - initialize a dynamically allocated sysfs attribute
94041@@ -63,7 +64,8 @@ struct attribute_group {
94042 struct attribute *, int);
94043 struct attribute **attrs;
94044 struct bin_attribute **bin_attrs;
94045-};
94046+} __do_const;
94047+typedef struct attribute_group __no_const attribute_group_no_const;
94048
94049 /**
94050 * Use these macros to make defining attributes easier. See include/linux/device.h
94051@@ -137,7 +139,8 @@ struct bin_attribute {
94052 char *, loff_t, size_t);
94053 int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
94054 struct vm_area_struct *vma);
94055-};
94056+} __do_const;
94057+typedef struct bin_attribute __no_const bin_attribute_no_const;
94058
94059 /**
94060 * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
94061diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
94062index 387fa7d..3fcde6b 100644
94063--- a/include/linux/sysrq.h
94064+++ b/include/linux/sysrq.h
94065@@ -16,6 +16,7 @@
94066
94067 #include <linux/errno.h>
94068 #include <linux/types.h>
94069+#include <linux/compiler.h>
94070
94071 /* Possible values of bitmask for enabling sysrq functions */
94072 /* 0x0001 is reserved for enable everything */
94073@@ -33,7 +34,7 @@ struct sysrq_key_op {
94074 char *help_msg;
94075 char *action_msg;
94076 int enable_mask;
94077-};
94078+} __do_const;
94079
94080 #ifdef CONFIG_MAGIC_SYSRQ
94081
94082diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
94083index ff307b5..f1a4468 100644
94084--- a/include/linux/thread_info.h
94085+++ b/include/linux/thread_info.h
94086@@ -145,6 +145,13 @@ static inline bool test_and_clear_restore_sigmask(void)
94087 #error "no set_restore_sigmask() provided and default one won't work"
94088 #endif
94089
94090+extern void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size);
94091+
94092+static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
94093+{
94094+ __check_object_size(ptr, n, to_user, __builtin_constant_p(n));
94095+}
94096+
94097 #endif /* __KERNEL__ */
94098
94099 #endif /* _LINUX_THREAD_INFO_H */
94100diff --git a/include/linux/tty.h b/include/linux/tty.h
94101index 358a337..8829c1f 100644
94102--- a/include/linux/tty.h
94103+++ b/include/linux/tty.h
94104@@ -225,7 +225,7 @@ struct tty_port {
94105 const struct tty_port_operations *ops; /* Port operations */
94106 spinlock_t lock; /* Lock protecting tty field */
94107 int blocked_open; /* Waiting to open */
94108- int count; /* Usage count */
94109+ atomic_t count; /* Usage count */
94110 wait_queue_head_t open_wait; /* Open waiters */
94111 wait_queue_head_t close_wait; /* Close waiters */
94112 wait_queue_head_t delta_msr_wait; /* Modem status change */
94113@@ -313,7 +313,7 @@ struct tty_struct {
94114 /* If the tty has a pending do_SAK, queue it here - akpm */
94115 struct work_struct SAK_work;
94116 struct tty_port *port;
94117-};
94118+} __randomize_layout;
94119
94120 /* Each of a tty's open files has private_data pointing to tty_file_private */
94121 struct tty_file_private {
94122@@ -572,7 +572,7 @@ extern int tty_port_open(struct tty_port *port,
94123 struct tty_struct *tty, struct file *filp);
94124 static inline int tty_port_users(struct tty_port *port)
94125 {
94126- return port->count + port->blocked_open;
94127+ return atomic_read(&port->count) + port->blocked_open;
94128 }
94129
94130 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
94131diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
94132index 92e337c..f46757b 100644
94133--- a/include/linux/tty_driver.h
94134+++ b/include/linux/tty_driver.h
94135@@ -291,7 +291,7 @@ struct tty_operations {
94136 void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
94137 #endif
94138 const struct file_operations *proc_fops;
94139-};
94140+} __do_const __randomize_layout;
94141
94142 struct tty_driver {
94143 int magic; /* magic number for this structure */
94144@@ -325,7 +325,7 @@ struct tty_driver {
94145
94146 const struct tty_operations *ops;
94147 struct list_head tty_drivers;
94148-};
94149+} __randomize_layout;
94150
94151 extern struct list_head tty_drivers;
94152
94153diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
94154index 00c9d68..bc0188b 100644
94155--- a/include/linux/tty_ldisc.h
94156+++ b/include/linux/tty_ldisc.h
94157@@ -215,7 +215,7 @@ struct tty_ldisc_ops {
94158
94159 struct module *owner;
94160
94161- int refcount;
94162+ atomic_t refcount;
94163 };
94164
94165 struct tty_ldisc {
94166diff --git a/include/linux/types.h b/include/linux/types.h
94167index 6747247..fc7ec8b 100644
94168--- a/include/linux/types.h
94169+++ b/include/linux/types.h
94170@@ -174,10 +174,26 @@ typedef struct {
94171 int counter;
94172 } atomic_t;
94173
94174+#ifdef CONFIG_PAX_REFCOUNT
94175+typedef struct {
94176+ int counter;
94177+} atomic_unchecked_t;
94178+#else
94179+typedef atomic_t atomic_unchecked_t;
94180+#endif
94181+
94182 #ifdef CONFIG_64BIT
94183 typedef struct {
94184 long counter;
94185 } atomic64_t;
94186+
94187+#ifdef CONFIG_PAX_REFCOUNT
94188+typedef struct {
94189+ long counter;
94190+} atomic64_unchecked_t;
94191+#else
94192+typedef atomic64_t atomic64_unchecked_t;
94193+#endif
94194 #endif
94195
94196 struct list_head {
94197diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
94198index ecd3319..8a36ded 100644
94199--- a/include/linux/uaccess.h
94200+++ b/include/linux/uaccess.h
94201@@ -75,11 +75,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
94202 long ret; \
94203 mm_segment_t old_fs = get_fs(); \
94204 \
94205- set_fs(KERNEL_DS); \
94206 pagefault_disable(); \
94207- ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \
94208- pagefault_enable(); \
94209+ set_fs(KERNEL_DS); \
94210+ ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \
94211 set_fs(old_fs); \
94212+ pagefault_enable(); \
94213 ret; \
94214 })
94215
94216diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
94217index 2d1f9b6..d7a9fce 100644
94218--- a/include/linux/uidgid.h
94219+++ b/include/linux/uidgid.h
94220@@ -175,4 +175,9 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
94221
94222 #endif /* CONFIG_USER_NS */
94223
94224+#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
94225+#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
94226+#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
94227+#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
94228+
94229 #endif /* _LINUX_UIDGID_H */
94230diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
94231index 32c0e83..671eb35 100644
94232--- a/include/linux/uio_driver.h
94233+++ b/include/linux/uio_driver.h
94234@@ -67,7 +67,7 @@ struct uio_device {
94235 struct module *owner;
94236 struct device *dev;
94237 int minor;
94238- atomic_t event;
94239+ atomic_unchecked_t event;
94240 struct fasync_struct *async_queue;
94241 wait_queue_head_t wait;
94242 struct uio_info *info;
94243diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
94244index 99c1b4d..562e6f3 100644
94245--- a/include/linux/unaligned/access_ok.h
94246+++ b/include/linux/unaligned/access_ok.h
94247@@ -4,34 +4,34 @@
94248 #include <linux/kernel.h>
94249 #include <asm/byteorder.h>
94250
94251-static inline u16 get_unaligned_le16(const void *p)
94252+static inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
94253 {
94254- return le16_to_cpup((__le16 *)p);
94255+ return le16_to_cpup((const __le16 *)p);
94256 }
94257
94258-static inline u32 get_unaligned_le32(const void *p)
94259+static inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
94260 {
94261- return le32_to_cpup((__le32 *)p);
94262+ return le32_to_cpup((const __le32 *)p);
94263 }
94264
94265-static inline u64 get_unaligned_le64(const void *p)
94266+static inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
94267 {
94268- return le64_to_cpup((__le64 *)p);
94269+ return le64_to_cpup((const __le64 *)p);
94270 }
94271
94272-static inline u16 get_unaligned_be16(const void *p)
94273+static inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
94274 {
94275- return be16_to_cpup((__be16 *)p);
94276+ return be16_to_cpup((const __be16 *)p);
94277 }
94278
94279-static inline u32 get_unaligned_be32(const void *p)
94280+static inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
94281 {
94282- return be32_to_cpup((__be32 *)p);
94283+ return be32_to_cpup((const __be32 *)p);
94284 }
94285
94286-static inline u64 get_unaligned_be64(const void *p)
94287+static inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
94288 {
94289- return be64_to_cpup((__be64 *)p);
94290+ return be64_to_cpup((const __be64 *)p);
94291 }
94292
94293 static inline void put_unaligned_le16(u16 val, void *p)
94294diff --git a/include/linux/usb.h b/include/linux/usb.h
94295index 447fe29..9fc875f 100644
94296--- a/include/linux/usb.h
94297+++ b/include/linux/usb.h
94298@@ -592,7 +592,7 @@ struct usb_device {
94299 int maxchild;
94300
94301 u32 quirks;
94302- atomic_t urbnum;
94303+ atomic_unchecked_t urbnum;
94304
94305 unsigned long active_duration;
94306
94307@@ -1676,7 +1676,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
94308
94309 extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
94310 __u8 request, __u8 requesttype, __u16 value, __u16 index,
94311- void *data, __u16 size, int timeout);
94312+ void *data, __u16 size, int timeout) __intentional_overflow(-1);
94313 extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
94314 void *data, int len, int *actual_length, int timeout);
94315 extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
94316diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
94317index 9fd9e48..e2c5f35 100644
94318--- a/include/linux/usb/renesas_usbhs.h
94319+++ b/include/linux/usb/renesas_usbhs.h
94320@@ -39,7 +39,7 @@ enum {
94321 */
94322 struct renesas_usbhs_driver_callback {
94323 int (*notify_hotplug)(struct platform_device *pdev);
94324-};
94325+} __no_const;
94326
94327 /*
94328 * callback functions for platform
94329diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
94330index 8297e5b..0dfae27 100644
94331--- a/include/linux/user_namespace.h
94332+++ b/include/linux/user_namespace.h
94333@@ -39,7 +39,7 @@ struct user_namespace {
94334 struct key *persistent_keyring_register;
94335 struct rw_semaphore persistent_keyring_register_sem;
94336 #endif
94337-};
94338+} __randomize_layout;
94339
94340 extern struct user_namespace init_user_ns;
94341
94342diff --git a/include/linux/utsname.h b/include/linux/utsname.h
94343index 5093f58..c103e58 100644
94344--- a/include/linux/utsname.h
94345+++ b/include/linux/utsname.h
94346@@ -25,7 +25,7 @@ struct uts_namespace {
94347 struct new_utsname name;
94348 struct user_namespace *user_ns;
94349 struct ns_common ns;
94350-};
94351+} __randomize_layout;
94352 extern struct uts_namespace init_uts_ns;
94353
94354 #ifdef CONFIG_UTS_NS
94355diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
94356index 6f8fbcf..4efc177 100644
94357--- a/include/linux/vermagic.h
94358+++ b/include/linux/vermagic.h
94359@@ -25,9 +25,42 @@
94360 #define MODULE_ARCH_VERMAGIC ""
94361 #endif
94362
94363+#ifdef CONFIG_PAX_REFCOUNT
94364+#define MODULE_PAX_REFCOUNT "REFCOUNT "
94365+#else
94366+#define MODULE_PAX_REFCOUNT ""
94367+#endif
94368+
94369+#ifdef CONSTIFY_PLUGIN
94370+#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
94371+#else
94372+#define MODULE_CONSTIFY_PLUGIN ""
94373+#endif
94374+
94375+#ifdef STACKLEAK_PLUGIN
94376+#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
94377+#else
94378+#define MODULE_STACKLEAK_PLUGIN ""
94379+#endif
94380+
94381+#ifdef RANDSTRUCT_PLUGIN
94382+#include <generated/randomize_layout_hash.h>
94383+#define MODULE_RANDSTRUCT_PLUGIN "RANDSTRUCT_PLUGIN_" RANDSTRUCT_HASHED_SEED
94384+#else
94385+#define MODULE_RANDSTRUCT_PLUGIN
94386+#endif
94387+
94388+#ifdef CONFIG_GRKERNSEC
94389+#define MODULE_GRSEC "GRSEC "
94390+#else
94391+#define MODULE_GRSEC ""
94392+#endif
94393+
94394 #define VERMAGIC_STRING \
94395 UTS_RELEASE " " \
94396 MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
94397 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
94398- MODULE_ARCH_VERMAGIC
94399+ MODULE_ARCH_VERMAGIC \
94400+ MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
94401+ MODULE_GRSEC MODULE_RANDSTRUCT_PLUGIN
94402
94403diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
94404index b483abd..af305ad 100644
94405--- a/include/linux/vga_switcheroo.h
94406+++ b/include/linux/vga_switcheroo.h
94407@@ -63,9 +63,9 @@ int vga_switcheroo_get_client_state(struct pci_dev *dev);
94408
94409 void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic);
94410
94411-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain);
94412+int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain);
94413 void vga_switcheroo_fini_domain_pm_ops(struct device *dev);
94414-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain);
94415+int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain);
94416 #else
94417
94418 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
94419@@ -82,9 +82,9 @@ static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return
94420
94421 static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}
94422
94423-static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
94424+static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
94425 static inline void vga_switcheroo_fini_domain_pm_ops(struct device *dev) {}
94426-static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
94427+static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
94428
94429 #endif
94430 #endif /* _LINUX_VGA_SWITCHEROO_H_ */
94431diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
94432index 0ec5983..cc61051 100644
94433--- a/include/linux/vmalloc.h
94434+++ b/include/linux/vmalloc.h
94435@@ -18,6 +18,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
94436 #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
94437 #define VM_NO_GUARD 0x00000040 /* don't add guard page */
94438 #define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
94439+
94440+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
94441+#define VM_KERNEXEC 0x00000100 /* allocate from executable kernel memory range */
94442+#endif
94443+
94444 /* bits [20..32] reserved for arch specific ioremap internals */
94445
94446 /*
94447@@ -86,6 +91,10 @@ extern void *vmap(struct page **pages, unsigned int count,
94448 unsigned long flags, pgprot_t prot);
94449 extern void vunmap(const void *addr);
94450
94451+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
94452+extern void unmap_process_stacks(struct task_struct *task);
94453+#endif
94454+
94455 extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
94456 unsigned long uaddr, void *kaddr,
94457 unsigned long size);
94458@@ -150,7 +159,7 @@ extern void free_vm_area(struct vm_struct *area);
94459
94460 /* for /dev/kmem */
94461 extern long vread(char *buf, char *addr, unsigned long count);
94462-extern long vwrite(char *buf, char *addr, unsigned long count);
94463+extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
94464
94465 /*
94466 * Internals. Dont't use..
94467diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
94468index 82e7db7..f8ce3d0 100644
94469--- a/include/linux/vmstat.h
94470+++ b/include/linux/vmstat.h
94471@@ -108,18 +108,18 @@ static inline void vm_events_fold_cpu(int cpu)
94472 /*
94473 * Zone based page accounting with per cpu differentials.
94474 */
94475-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
94476+extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
94477
94478 static inline void zone_page_state_add(long x, struct zone *zone,
94479 enum zone_stat_item item)
94480 {
94481- atomic_long_add(x, &zone->vm_stat[item]);
94482- atomic_long_add(x, &vm_stat[item]);
94483+ atomic_long_add_unchecked(x, &zone->vm_stat[item]);
94484+ atomic_long_add_unchecked(x, &vm_stat[item]);
94485 }
94486
94487-static inline unsigned long global_page_state(enum zone_stat_item item)
94488+static inline unsigned long __intentional_overflow(-1) global_page_state(enum zone_stat_item item)
94489 {
94490- long x = atomic_long_read(&vm_stat[item]);
94491+ long x = atomic_long_read_unchecked(&vm_stat[item]);
94492 #ifdef CONFIG_SMP
94493 if (x < 0)
94494 x = 0;
94495@@ -127,10 +127,10 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
94496 return x;
94497 }
94498
94499-static inline unsigned long zone_page_state(struct zone *zone,
94500+static inline unsigned long __intentional_overflow(-1) zone_page_state(struct zone *zone,
94501 enum zone_stat_item item)
94502 {
94503- long x = atomic_long_read(&zone->vm_stat[item]);
94504+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
94505 #ifdef CONFIG_SMP
94506 if (x < 0)
94507 x = 0;
94508@@ -147,7 +147,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
94509 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
94510 enum zone_stat_item item)
94511 {
94512- long x = atomic_long_read(&zone->vm_stat[item]);
94513+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
94514
94515 #ifdef CONFIG_SMP
94516 int cpu;
94517@@ -234,14 +234,14 @@ static inline void __mod_zone_page_state(struct zone *zone,
94518
94519 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
94520 {
94521- atomic_long_inc(&zone->vm_stat[item]);
94522- atomic_long_inc(&vm_stat[item]);
94523+ atomic_long_inc_unchecked(&zone->vm_stat[item]);
94524+ atomic_long_inc_unchecked(&vm_stat[item]);
94525 }
94526
94527 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
94528 {
94529- atomic_long_dec(&zone->vm_stat[item]);
94530- atomic_long_dec(&vm_stat[item]);
94531+ atomic_long_dec_unchecked(&zone->vm_stat[item]);
94532+ atomic_long_dec_unchecked(&vm_stat[item]);
94533 }
94534
94535 static inline void __inc_zone_page_state(struct page *page,
94536diff --git a/include/linux/xattr.h b/include/linux/xattr.h
94537index 91b0a68..0e9adf6 100644
94538--- a/include/linux/xattr.h
94539+++ b/include/linux/xattr.h
94540@@ -28,7 +28,7 @@ struct xattr_handler {
94541 size_t size, int handler_flags);
94542 int (*set)(struct dentry *dentry, const char *name, const void *buffer,
94543 size_t size, int flags, int handler_flags);
94544-};
94545+} __do_const;
94546
94547 struct xattr {
94548 const char *name;
94549@@ -37,6 +37,9 @@ struct xattr {
94550 };
94551
94552 ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
94553+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
94554+ssize_t pax_getxattr(struct dentry *, void *, size_t);
94555+#endif
94556 ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
94557 ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
94558 int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
94559diff --git a/include/linux/zlib.h b/include/linux/zlib.h
94560index 92dbbd3..13ab0b3 100644
94561--- a/include/linux/zlib.h
94562+++ b/include/linux/zlib.h
94563@@ -31,6 +31,7 @@
94564 #define _ZLIB_H
94565
94566 #include <linux/zconf.h>
94567+#include <linux/compiler.h>
94568
94569 /* zlib deflate based on ZLIB_VERSION "1.1.3" */
94570 /* zlib inflate based on ZLIB_VERSION "1.2.3" */
94571@@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
94572
94573 /* basic functions */
94574
94575-extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
94576+extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
94577 /*
94578 Returns the number of bytes that needs to be allocated for a per-
94579 stream workspace with the specified parameters. A pointer to this
94580diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
94581index 3e4fddf..5ec9104 100644
94582--- a/include/media/v4l2-dev.h
94583+++ b/include/media/v4l2-dev.h
94584@@ -75,7 +75,7 @@ struct v4l2_file_operations {
94585 int (*mmap) (struct file *, struct vm_area_struct *);
94586 int (*open) (struct file *);
94587 int (*release) (struct file *);
94588-};
94589+} __do_const;
94590
94591 /*
94592 * Newer version of video_device, handled by videodev2.c
94593diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
94594index ffb69da..040393e 100644
94595--- a/include/media/v4l2-device.h
94596+++ b/include/media/v4l2-device.h
94597@@ -95,7 +95,7 @@ int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4
94598 this function returns 0. If the name ends with a digit (e.g. cx18),
94599 then the name will be set to cx18-0 since cx180 looks really odd. */
94600 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
94601- atomic_t *instance);
94602+ atomic_unchecked_t *instance);
94603
94604 /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
94605 Since the parent disappears this ensures that v4l2_dev doesn't have an
94606diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
94607index 2a25dec..bf6dd8a 100644
94608--- a/include/net/9p/transport.h
94609+++ b/include/net/9p/transport.h
94610@@ -62,7 +62,7 @@ struct p9_trans_module {
94611 int (*cancelled)(struct p9_client *, struct p9_req_t *req);
94612 int (*zc_request)(struct p9_client *, struct p9_req_t *,
94613 char *, char *, int , int, int, int);
94614-};
94615+} __do_const;
94616
94617 void v9fs_register_trans(struct p9_trans_module *m);
94618 void v9fs_unregister_trans(struct p9_trans_module *m);
94619diff --git a/include/net/af_unix.h b/include/net/af_unix.h
94620index a175ba4..196eb8242 100644
94621--- a/include/net/af_unix.h
94622+++ b/include/net/af_unix.h
94623@@ -36,7 +36,7 @@ struct unix_skb_parms {
94624 u32 secid; /* Security ID */
94625 #endif
94626 u32 consumed;
94627-};
94628+} __randomize_layout;
94629
94630 #define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb))
94631 #define UNIXSID(skb) (&UNIXCB((skb)).secid)
94632diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
94633index 2239a37..a83461f 100644
94634--- a/include/net/bluetooth/l2cap.h
94635+++ b/include/net/bluetooth/l2cap.h
94636@@ -609,7 +609,7 @@ struct l2cap_ops {
94637 struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
94638 unsigned long hdr_len,
94639 unsigned long len, int nb);
94640-};
94641+} __do_const;
94642
94643 struct l2cap_conn {
94644 struct hci_conn *hcon;
94645diff --git a/include/net/bonding.h b/include/net/bonding.h
94646index fda6fee..dbdf83c 100644
94647--- a/include/net/bonding.h
94648+++ b/include/net/bonding.h
94649@@ -665,7 +665,7 @@ extern struct rtnl_link_ops bond_link_ops;
94650
94651 static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
94652 {
94653- atomic_long_inc(&dev->tx_dropped);
94654+ atomic_long_inc_unchecked(&dev->tx_dropped);
94655 dev_kfree_skb_any(skb);
94656 }
94657
94658diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
94659index f2ae33d..c457cf0 100644
94660--- a/include/net/caif/cfctrl.h
94661+++ b/include/net/caif/cfctrl.h
94662@@ -52,7 +52,7 @@ struct cfctrl_rsp {
94663 void (*radioset_rsp)(void);
94664 void (*reject_rsp)(struct cflayer *layer, u8 linkid,
94665 struct cflayer *client_layer);
94666-};
94667+} __no_const;
94668
94669 /* Link Setup Parameters for CAIF-Links. */
94670 struct cfctrl_link_param {
94671@@ -101,8 +101,8 @@ struct cfctrl_request_info {
94672 struct cfctrl {
94673 struct cfsrvl serv;
94674 struct cfctrl_rsp res;
94675- atomic_t req_seq_no;
94676- atomic_t rsp_seq_no;
94677+ atomic_unchecked_t req_seq_no;
94678+ atomic_unchecked_t rsp_seq_no;
94679 struct list_head list;
94680 /* Protects from simultaneous access to first_req list */
94681 spinlock_t info_list_lock;
94682diff --git a/include/net/flow.h b/include/net/flow.h
94683index 8109a15..504466d 100644
94684--- a/include/net/flow.h
94685+++ b/include/net/flow.h
94686@@ -231,6 +231,6 @@ void flow_cache_fini(struct net *net);
94687
94688 void flow_cache_flush(struct net *net);
94689 void flow_cache_flush_deferred(struct net *net);
94690-extern atomic_t flow_cache_genid;
94691+extern atomic_unchecked_t flow_cache_genid;
94692
94693 #endif
94694diff --git a/include/net/genetlink.h b/include/net/genetlink.h
94695index 0574abd..0f16881 100644
94696--- a/include/net/genetlink.h
94697+++ b/include/net/genetlink.h
94698@@ -130,7 +130,7 @@ struct genl_ops {
94699 u8 cmd;
94700 u8 internal_flags;
94701 u8 flags;
94702-};
94703+} __do_const;
94704
94705 int __genl_register_family(struct genl_family *family);
94706
94707diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
94708index 0f712c0..cd762c4 100644
94709--- a/include/net/gro_cells.h
94710+++ b/include/net/gro_cells.h
94711@@ -27,7 +27,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
94712 cell = this_cpu_ptr(gcells->cells);
94713
94714 if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
94715- atomic_long_inc(&dev->rx_dropped);
94716+ atomic_long_inc_unchecked(&dev->rx_dropped);
94717 kfree_skb(skb);
94718 return;
94719 }
94720diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
94721index 5976bde..3a81660 100644
94722--- a/include/net/inet_connection_sock.h
94723+++ b/include/net/inet_connection_sock.h
94724@@ -63,7 +63,7 @@ struct inet_connection_sock_af_ops {
94725 int (*bind_conflict)(const struct sock *sk,
94726 const struct inet_bind_bucket *tb, bool relax);
94727 void (*mtu_reduced)(struct sock *sk);
94728-};
94729+} __do_const;
94730
94731 /** inet_connection_sock - INET connection oriented sock
94732 *
94733diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
94734index 80479ab..0c3f647 100644
94735--- a/include/net/inetpeer.h
94736+++ b/include/net/inetpeer.h
94737@@ -47,7 +47,7 @@ struct inet_peer {
94738 */
94739 union {
94740 struct {
94741- atomic_t rid; /* Frag reception counter */
94742+ atomic_unchecked_t rid; /* Frag reception counter */
94743 };
94744 struct rcu_head rcu;
94745 struct inet_peer *gc_next;
94746diff --git a/include/net/ip.h b/include/net/ip.h
94747index 6cc1eaf..14059b0 100644
94748--- a/include/net/ip.h
94749+++ b/include/net/ip.h
94750@@ -317,7 +317,7 @@ static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb)
94751 }
94752 }
94753
94754-u32 ip_idents_reserve(u32 hash, int segs);
94755+u32 ip_idents_reserve(u32 hash, int segs) __intentional_overflow(-1);
94756 void __ip_select_ident(struct iphdr *iph, int segs);
94757
94758 static inline void ip_select_ident_segs(struct sk_buff *skb, struct sock *sk, int segs)
94759diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
94760index 5bd120e4..03fb812 100644
94761--- a/include/net/ip_fib.h
94762+++ b/include/net/ip_fib.h
94763@@ -170,7 +170,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
94764
94765 #define FIB_RES_SADDR(net, res) \
94766 ((FIB_RES_NH(res).nh_saddr_genid == \
94767- atomic_read(&(net)->ipv4.dev_addr_genid)) ? \
94768+ atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \
94769 FIB_RES_NH(res).nh_saddr : \
94770 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
94771 #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
94772diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
94773index 615b20b..fd4cbd8 100644
94774--- a/include/net/ip_vs.h
94775+++ b/include/net/ip_vs.h
94776@@ -534,7 +534,7 @@ struct ip_vs_conn {
94777 struct ip_vs_conn *control; /* Master control connection */
94778 atomic_t n_control; /* Number of controlled ones */
94779 struct ip_vs_dest *dest; /* real server */
94780- atomic_t in_pkts; /* incoming packet counter */
94781+ atomic_unchecked_t in_pkts; /* incoming packet counter */
94782
94783 /* Packet transmitter for different forwarding methods. If it
94784 * mangles the packet, it must return NF_DROP or better NF_STOLEN,
94785@@ -682,7 +682,7 @@ struct ip_vs_dest {
94786 __be16 port; /* port number of the server */
94787 union nf_inet_addr addr; /* IP address of the server */
94788 volatile unsigned int flags; /* dest status flags */
94789- atomic_t conn_flags; /* flags to copy to conn */
94790+ atomic_unchecked_t conn_flags; /* flags to copy to conn */
94791 atomic_t weight; /* server weight */
94792
94793 atomic_t refcnt; /* reference counter */
94794@@ -928,11 +928,11 @@ struct netns_ipvs {
94795 /* ip_vs_lblc */
94796 int sysctl_lblc_expiration;
94797 struct ctl_table_header *lblc_ctl_header;
94798- struct ctl_table *lblc_ctl_table;
94799+ ctl_table_no_const *lblc_ctl_table;
94800 /* ip_vs_lblcr */
94801 int sysctl_lblcr_expiration;
94802 struct ctl_table_header *lblcr_ctl_header;
94803- struct ctl_table *lblcr_ctl_table;
94804+ ctl_table_no_const *lblcr_ctl_table;
94805 /* ip_vs_est */
94806 struct list_head est_list; /* estimator list */
94807 spinlock_t est_lock;
94808diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
94809index 8d4f588..2e37ad2 100644
94810--- a/include/net/irda/ircomm_tty.h
94811+++ b/include/net/irda/ircomm_tty.h
94812@@ -33,6 +33,7 @@
94813 #include <linux/termios.h>
94814 #include <linux/timer.h>
94815 #include <linux/tty.h> /* struct tty_struct */
94816+#include <asm/local.h>
94817
94818 #include <net/irda/irias_object.h>
94819 #include <net/irda/ircomm_core.h>
94820diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
94821index 714cc9a..ea05f3e 100644
94822--- a/include/net/iucv/af_iucv.h
94823+++ b/include/net/iucv/af_iucv.h
94824@@ -149,7 +149,7 @@ struct iucv_skb_cb {
94825 struct iucv_sock_list {
94826 struct hlist_head head;
94827 rwlock_t lock;
94828- atomic_t autobind_name;
94829+ atomic_unchecked_t autobind_name;
94830 };
94831
94832 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
94833diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
94834index f3be818..bf46196 100644
94835--- a/include/net/llc_c_ac.h
94836+++ b/include/net/llc_c_ac.h
94837@@ -87,7 +87,7 @@
94838 #define LLC_CONN_AC_STOP_SENDACK_TMR 70
94839 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING 71
94840
94841-typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
94842+typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
94843
94844 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
94845 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
94846diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
94847index 3948cf1..83b28c4 100644
94848--- a/include/net/llc_c_ev.h
94849+++ b/include/net/llc_c_ev.h
94850@@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
94851 return (struct llc_conn_state_ev *)skb->cb;
94852 }
94853
94854-typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
94855-typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
94856+typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
94857+typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
94858
94859 int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
94860 int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
94861diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
94862index 48f3f89..0e92c50 100644
94863--- a/include/net/llc_c_st.h
94864+++ b/include/net/llc_c_st.h
94865@@ -37,7 +37,7 @@ struct llc_conn_state_trans {
94866 u8 next_state;
94867 const llc_conn_ev_qfyr_t *ev_qualifiers;
94868 const llc_conn_action_t *ev_actions;
94869-};
94870+} __do_const;
94871
94872 struct llc_conn_state {
94873 u8 current_state;
94874diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
94875index a61b98c..aade1eb 100644
94876--- a/include/net/llc_s_ac.h
94877+++ b/include/net/llc_s_ac.h
94878@@ -23,7 +23,7 @@
94879 #define SAP_ACT_TEST_IND 9
94880
94881 /* All action functions must look like this */
94882-typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
94883+typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
94884
94885 int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
94886 int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
94887diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
94888index c4359e2..76dbc4a 100644
94889--- a/include/net/llc_s_st.h
94890+++ b/include/net/llc_s_st.h
94891@@ -20,7 +20,7 @@ struct llc_sap_state_trans {
94892 llc_sap_ev_t ev;
94893 u8 next_state;
94894 const llc_sap_action_t *ev_actions;
94895-};
94896+} __do_const;
94897
94898 struct llc_sap_state {
94899 u8 curr_state;
94900diff --git a/include/net/mac80211.h b/include/net/mac80211.h
94901index d52914b..2b13cec 100644
94902--- a/include/net/mac80211.h
94903+++ b/include/net/mac80211.h
94904@@ -4915,7 +4915,7 @@ struct rate_control_ops {
94905 void (*remove_sta_debugfs)(void *priv, void *priv_sta);
94906
94907 u32 (*get_expected_throughput)(void *priv_sta);
94908-};
94909+} __do_const;
94910
94911 static inline int rate_supported(struct ieee80211_sta *sta,
94912 enum ieee80211_band band,
94913diff --git a/include/net/neighbour.h b/include/net/neighbour.h
94914index 76f7084..8f36e39 100644
94915--- a/include/net/neighbour.h
94916+++ b/include/net/neighbour.h
94917@@ -163,7 +163,7 @@ struct neigh_ops {
94918 void (*error_report)(struct neighbour *, struct sk_buff *);
94919 int (*output)(struct neighbour *, struct sk_buff *);
94920 int (*connected_output)(struct neighbour *, struct sk_buff *);
94921-};
94922+} __do_const;
94923
94924 struct pneigh_entry {
94925 struct pneigh_entry *next;
94926@@ -217,7 +217,7 @@ struct neigh_table {
94927 struct neigh_statistics __percpu *stats;
94928 struct neigh_hash_table __rcu *nht;
94929 struct pneigh_entry **phash_buckets;
94930-};
94931+} __randomize_layout;
94932
94933 enum {
94934 NEIGH_ARP_TABLE = 0,
94935diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
94936index 36faf49..6927638 100644
94937--- a/include/net/net_namespace.h
94938+++ b/include/net/net_namespace.h
94939@@ -131,8 +131,8 @@ struct net {
94940 struct netns_ipvs *ipvs;
94941 #endif
94942 struct sock *diag_nlsk;
94943- atomic_t fnhe_genid;
94944-};
94945+ atomic_unchecked_t fnhe_genid;
94946+} __randomize_layout;
94947
94948 #include <linux/seq_file_net.h>
94949
94950@@ -288,7 +288,11 @@ static inline struct net *read_pnet(struct net * const *pnet)
94951 #define __net_init __init
94952 #define __net_exit __exit_refok
94953 #define __net_initdata __initdata
94954+#ifdef CONSTIFY_PLUGIN
94955 #define __net_initconst __initconst
94956+#else
94957+#define __net_initconst __initdata
94958+#endif
94959 #endif
94960
94961 int peernet2id(struct net *net, struct net *peer);
94962@@ -301,7 +305,7 @@ struct pernet_operations {
94963 void (*exit_batch)(struct list_head *net_exit_list);
94964 int *id;
94965 size_t size;
94966-};
94967+} __do_const;
94968
94969 /*
94970 * Use these carefully. If you implement a network device and it
94971@@ -349,12 +353,12 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
94972
94973 static inline int rt_genid_ipv4(struct net *net)
94974 {
94975- return atomic_read(&net->ipv4.rt_genid);
94976+ return atomic_read_unchecked(&net->ipv4.rt_genid);
94977 }
94978
94979 static inline void rt_genid_bump_ipv4(struct net *net)
94980 {
94981- atomic_inc(&net->ipv4.rt_genid);
94982+ atomic_inc_unchecked(&net->ipv4.rt_genid);
94983 }
94984
94985 extern void (*__fib6_flush_trees)(struct net *net);
94986@@ -381,12 +385,12 @@ static inline void rt_genid_bump_all(struct net *net)
94987
94988 static inline int fnhe_genid(struct net *net)
94989 {
94990- return atomic_read(&net->fnhe_genid);
94991+ return atomic_read_unchecked(&net->fnhe_genid);
94992 }
94993
94994 static inline void fnhe_genid_bump(struct net *net)
94995 {
94996- atomic_inc(&net->fnhe_genid);
94997+ atomic_inc_unchecked(&net->fnhe_genid);
94998 }
94999
95000 #endif /* __NET_NET_NAMESPACE_H */
95001diff --git a/include/net/netlink.h b/include/net/netlink.h
95002index e010ee8..405b9f4 100644
95003--- a/include/net/netlink.h
95004+++ b/include/net/netlink.h
95005@@ -518,7 +518,7 @@ static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
95006 {
95007 if (mark) {
95008 WARN_ON((unsigned char *) mark < skb->data);
95009- skb_trim(skb, (unsigned char *) mark - skb->data);
95010+ skb_trim(skb, (const unsigned char *) mark - skb->data);
95011 }
95012 }
95013
95014diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
95015index 29d6a94..235d3d84 100644
95016--- a/include/net/netns/conntrack.h
95017+++ b/include/net/netns/conntrack.h
95018@@ -14,10 +14,10 @@ struct nf_conntrack_ecache;
95019 struct nf_proto_net {
95020 #ifdef CONFIG_SYSCTL
95021 struct ctl_table_header *ctl_table_header;
95022- struct ctl_table *ctl_table;
95023+ ctl_table_no_const *ctl_table;
95024 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
95025 struct ctl_table_header *ctl_compat_header;
95026- struct ctl_table *ctl_compat_table;
95027+ ctl_table_no_const *ctl_compat_table;
95028 #endif
95029 #endif
95030 unsigned int users;
95031@@ -60,7 +60,7 @@ struct nf_ip_net {
95032 struct nf_icmp_net icmpv6;
95033 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
95034 struct ctl_table_header *ctl_table_header;
95035- struct ctl_table *ctl_table;
95036+ ctl_table_no_const *ctl_table;
95037 #endif
95038 };
95039
95040diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
95041index dbe2254..ed0c151 100644
95042--- a/include/net/netns/ipv4.h
95043+++ b/include/net/netns/ipv4.h
95044@@ -87,7 +87,7 @@ struct netns_ipv4 {
95045
95046 struct ping_group_range ping_group_range;
95047
95048- atomic_t dev_addr_genid;
95049+ atomic_unchecked_t dev_addr_genid;
95050
95051 #ifdef CONFIG_SYSCTL
95052 unsigned long *sysctl_local_reserved_ports;
95053@@ -101,6 +101,6 @@ struct netns_ipv4 {
95054 struct fib_rules_ops *mr_rules_ops;
95055 #endif
95056 #endif
95057- atomic_t rt_genid;
95058+ atomic_unchecked_t rt_genid;
95059 };
95060 #endif
95061diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
95062index 69ae41f..4f94868 100644
95063--- a/include/net/netns/ipv6.h
95064+++ b/include/net/netns/ipv6.h
95065@@ -75,8 +75,8 @@ struct netns_ipv6 {
95066 struct fib_rules_ops *mr6_rules_ops;
95067 #endif
95068 #endif
95069- atomic_t dev_addr_genid;
95070- atomic_t fib6_sernum;
95071+ atomic_unchecked_t dev_addr_genid;
95072+ atomic_unchecked_t fib6_sernum;
95073 };
95074
95075 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
95076diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
95077index 730d82a..045f2c4 100644
95078--- a/include/net/netns/xfrm.h
95079+++ b/include/net/netns/xfrm.h
95080@@ -78,7 +78,7 @@ struct netns_xfrm {
95081
95082 /* flow cache part */
95083 struct flow_cache flow_cache_global;
95084- atomic_t flow_cache_genid;
95085+ atomic_unchecked_t flow_cache_genid;
95086 struct list_head flow_cache_gc_list;
95087 spinlock_t flow_cache_gc_lock;
95088 struct work_struct flow_cache_gc_work;
95089diff --git a/include/net/ping.h b/include/net/ping.h
95090index cc16d41..664f40b 100644
95091--- a/include/net/ping.h
95092+++ b/include/net/ping.h
95093@@ -54,7 +54,7 @@ struct ping_iter_state {
95094
95095 extern struct proto ping_prot;
95096 #if IS_ENABLED(CONFIG_IPV6)
95097-extern struct pingv6_ops pingv6_ops;
95098+extern struct pingv6_ops *pingv6_ops;
95099 #endif
95100
95101 struct pingfakehdr {
95102diff --git a/include/net/protocol.h b/include/net/protocol.h
95103index d6fcc1f..ca277058 100644
95104--- a/include/net/protocol.h
95105+++ b/include/net/protocol.h
95106@@ -49,7 +49,7 @@ struct net_protocol {
95107 * socket lookup?
95108 */
95109 icmp_strict_tag_validation:1;
95110-};
95111+} __do_const;
95112
95113 #if IS_ENABLED(CONFIG_IPV6)
95114 struct inet6_protocol {
95115@@ -62,7 +62,7 @@ struct inet6_protocol {
95116 u8 type, u8 code, int offset,
95117 __be32 info);
95118 unsigned int flags; /* INET6_PROTO_xxx */
95119-};
95120+} __do_const;
95121
95122 #define INET6_PROTO_NOPOLICY 0x1
95123 #define INET6_PROTO_FINAL 0x2
95124diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
95125index 6c6d539..af70817 100644
95126--- a/include/net/rtnetlink.h
95127+++ b/include/net/rtnetlink.h
95128@@ -95,7 +95,7 @@ struct rtnl_link_ops {
95129 const struct net_device *dev,
95130 const struct net_device *slave_dev);
95131 struct net *(*get_link_net)(const struct net_device *dev);
95132-};
95133+} __do_const;
95134
95135 int __rtnl_link_register(struct rtnl_link_ops *ops);
95136 void __rtnl_link_unregister(struct rtnl_link_ops *ops);
95137diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
95138index 4a5b9a3..ca27d73 100644
95139--- a/include/net/sctp/checksum.h
95140+++ b/include/net/sctp/checksum.h
95141@@ -61,8 +61,8 @@ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
95142 unsigned int offset)
95143 {
95144 struct sctphdr *sh = sctp_hdr(skb);
95145- __le32 ret, old = sh->checksum;
95146- const struct skb_checksum_ops ops = {
95147+ __le32 ret, old = sh->checksum;
95148+ static const struct skb_checksum_ops ops = {
95149 .update = sctp_csum_update,
95150 .combine = sctp_csum_combine,
95151 };
95152diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
95153index 487ef34..d457f98 100644
95154--- a/include/net/sctp/sm.h
95155+++ b/include/net/sctp/sm.h
95156@@ -80,7 +80,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
95157 typedef struct {
95158 sctp_state_fn_t *fn;
95159 const char *name;
95160-} sctp_sm_table_entry_t;
95161+} __do_const sctp_sm_table_entry_t;
95162
95163 /* A naming convention of "sctp_sf_xxx" applies to all the state functions
95164 * currently in use.
95165@@ -292,7 +292,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
95166 __u32 sctp_generate_tsn(const struct sctp_endpoint *);
95167
95168 /* Extern declarations for major data structures. */
95169-extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
95170+extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
95171
95172
95173 /* Get the size of a DATA chunk payload. */
95174diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
95175index 2bb2fcf..d17c291 100644
95176--- a/include/net/sctp/structs.h
95177+++ b/include/net/sctp/structs.h
95178@@ -509,7 +509,7 @@ struct sctp_pf {
95179 void (*to_sk_saddr)(union sctp_addr *, struct sock *sk);
95180 void (*to_sk_daddr)(union sctp_addr *, struct sock *sk);
95181 struct sctp_af *af;
95182-};
95183+} __do_const;
95184
95185
95186 /* Structure to track chunk fragments that have been acked, but peer
95187diff --git a/include/net/sock.h b/include/net/sock.h
95188index e4079c2..79c5d3a 100644
95189--- a/include/net/sock.h
95190+++ b/include/net/sock.h
95191@@ -362,7 +362,7 @@ struct sock {
95192 unsigned int sk_napi_id;
95193 unsigned int sk_ll_usec;
95194 #endif
95195- atomic_t sk_drops;
95196+ atomic_unchecked_t sk_drops;
95197 int sk_rcvbuf;
95198
95199 struct sk_filter __rcu *sk_filter;
95200@@ -1039,7 +1039,7 @@ struct proto {
95201 void (*destroy_cgroup)(struct mem_cgroup *memcg);
95202 struct cg_proto *(*proto_cgroup)(struct mem_cgroup *memcg);
95203 #endif
95204-};
95205+} __randomize_layout;
95206
95207 /*
95208 * Bits in struct cg_proto.flags
95209@@ -1212,7 +1212,7 @@ static inline void memcg_memory_allocated_sub(struct cg_proto *prot,
95210 page_counter_uncharge(&prot->memory_allocated, amt);
95211 }
95212
95213-static inline long
95214+static inline long __intentional_overflow(-1)
95215 sk_memory_allocated(const struct sock *sk)
95216 {
95217 struct proto *prot = sk->sk_prot;
95218@@ -1778,7 +1778,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
95219 }
95220
95221 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
95222- struct iov_iter *from, char *to,
95223+ struct iov_iter *from, unsigned char *to,
95224 int copy, int offset)
95225 {
95226 if (skb->ip_summed == CHECKSUM_NONE) {
95227@@ -2025,7 +2025,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
95228 }
95229 }
95230
95231-struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
95232+struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
95233
95234 /**
95235 * sk_page_frag - return an appropriate page_frag
95236diff --git a/include/net/tcp.h b/include/net/tcp.h
95237index 8d6b983..5813205 100644
95238--- a/include/net/tcp.h
95239+++ b/include/net/tcp.h
95240@@ -516,7 +516,7 @@ void tcp_retransmit_timer(struct sock *sk);
95241 void tcp_xmit_retransmit_queue(struct sock *);
95242 void tcp_simple_retransmit(struct sock *);
95243 int tcp_trim_head(struct sock *, struct sk_buff *, u32);
95244-int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t);
95245+int __intentional_overflow(3) tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t);
95246
95247 void tcp_send_probe0(struct sock *);
95248 void tcp_send_partial(struct sock *);
95249@@ -694,8 +694,8 @@ static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
95250 * If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately.
95251 */
95252 struct tcp_skb_cb {
95253- __u32 seq; /* Starting sequence number */
95254- __u32 end_seq; /* SEQ + FIN + SYN + datalen */
95255+ __u32 seq __intentional_overflow(0); /* Starting sequence number */
95256+ __u32 end_seq __intentional_overflow(0); /* SEQ + FIN + SYN + datalen */
95257 union {
95258 /* Note : tcp_tw_isn is used in input path only
95259 * (isn chosen by tcp_timewait_state_process())
95260@@ -720,7 +720,7 @@ struct tcp_skb_cb {
95261
95262 __u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */
95263 /* 1 byte hole */
95264- __u32 ack_seq; /* Sequence number ACK'd */
95265+ __u32 ack_seq __intentional_overflow(0); /* Sequence number ACK'd */
95266 union {
95267 struct inet_skb_parm h4;
95268 #if IS_ENABLED(CONFIG_IPV6)
95269diff --git a/include/net/xfrm.h b/include/net/xfrm.h
95270index dc4865e..152ee4c 100644
95271--- a/include/net/xfrm.h
95272+++ b/include/net/xfrm.h
95273@@ -285,7 +285,6 @@ struct xfrm_dst;
95274 struct xfrm_policy_afinfo {
95275 unsigned short family;
95276 struct dst_ops *dst_ops;
95277- void (*garbage_collect)(struct net *net);
95278 struct dst_entry *(*dst_lookup)(struct net *net, int tos,
95279 const xfrm_address_t *saddr,
95280 const xfrm_address_t *daddr);
95281@@ -303,7 +302,7 @@ struct xfrm_policy_afinfo {
95282 struct net_device *dev,
95283 const struct flowi *fl);
95284 struct dst_entry *(*blackhole_route)(struct net *net, struct dst_entry *orig);
95285-};
95286+} __do_const;
95287
95288 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
95289 int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
95290@@ -342,7 +341,7 @@ struct xfrm_state_afinfo {
95291 int (*transport_finish)(struct sk_buff *skb,
95292 int async);
95293 void (*local_error)(struct sk_buff *skb, u32 mtu);
95294-};
95295+} __do_const;
95296
95297 int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
95298 int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
95299@@ -437,7 +436,7 @@ struct xfrm_mode {
95300 struct module *owner;
95301 unsigned int encap;
95302 int flags;
95303-};
95304+} __do_const;
95305
95306 /* Flags for xfrm_mode. */
95307 enum {
95308@@ -534,7 +533,7 @@ struct xfrm_policy {
95309 struct timer_list timer;
95310
95311 struct flow_cache_object flo;
95312- atomic_t genid;
95313+ atomic_unchecked_t genid;
95314 u32 priority;
95315 u32 index;
95316 struct xfrm_mark mark;
95317@@ -1167,6 +1166,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
95318 }
95319
95320 void xfrm_garbage_collect(struct net *net);
95321+void xfrm_garbage_collect_deferred(struct net *net);
95322
95323 #else
95324
95325@@ -1205,6 +1205,9 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
95326 static inline void xfrm_garbage_collect(struct net *net)
95327 {
95328 }
95329+static inline void xfrm_garbage_collect_deferred(struct net *net)
95330+{
95331+}
95332 #endif
95333
95334 static __inline__
95335diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
95336index 1017e0b..227aa4d 100644
95337--- a/include/rdma/iw_cm.h
95338+++ b/include/rdma/iw_cm.h
95339@@ -122,7 +122,7 @@ struct iw_cm_verbs {
95340 int backlog);
95341
95342 int (*destroy_listen)(struct iw_cm_id *cm_id);
95343-};
95344+} __no_const;
95345
95346 /**
95347 * iw_create_cm_id - Create an IW CM identifier.
95348diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
95349index 93d14da..734b3d8 100644
95350--- a/include/scsi/libfc.h
95351+++ b/include/scsi/libfc.h
95352@@ -771,6 +771,7 @@ struct libfc_function_template {
95353 */
95354 void (*disc_stop_final) (struct fc_lport *);
95355 };
95356+typedef struct libfc_function_template __no_const libfc_function_template_no_const;
95357
95358 /**
95359 * struct fc_disc - Discovery context
95360@@ -875,7 +876,7 @@ struct fc_lport {
95361 struct fc_vport *vport;
95362
95363 /* Operational Information */
95364- struct libfc_function_template tt;
95365+ libfc_function_template_no_const tt;
95366 u8 link_up;
95367 u8 qfull;
95368 enum fc_lport_state state;
95369diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
95370index a4c9336..d6f8f34 100644
95371--- a/include/scsi/scsi_device.h
95372+++ b/include/scsi/scsi_device.h
95373@@ -185,9 +185,9 @@ struct scsi_device {
95374 unsigned int max_device_blocked; /* what device_blocked counts down from */
95375 #define SCSI_DEFAULT_DEVICE_BLOCKED 3
95376
95377- atomic_t iorequest_cnt;
95378- atomic_t iodone_cnt;
95379- atomic_t ioerr_cnt;
95380+ atomic_unchecked_t iorequest_cnt;
95381+ atomic_unchecked_t iodone_cnt;
95382+ atomic_unchecked_t ioerr_cnt;
95383
95384 struct device sdev_gendev,
95385 sdev_dev;
95386diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
95387index 007a0bc..7188db8 100644
95388--- a/include/scsi/scsi_transport_fc.h
95389+++ b/include/scsi/scsi_transport_fc.h
95390@@ -756,7 +756,8 @@ struct fc_function_template {
95391 unsigned long show_host_system_hostname:1;
95392
95393 unsigned long disable_target_scan:1;
95394-};
95395+} __do_const;
95396+typedef struct fc_function_template __no_const fc_function_template_no_const;
95397
95398
95399 /**
95400diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
95401index f48089d..73abe48 100644
95402--- a/include/sound/compress_driver.h
95403+++ b/include/sound/compress_driver.h
95404@@ -130,7 +130,7 @@ struct snd_compr_ops {
95405 struct snd_compr_caps *caps);
95406 int (*get_codec_caps) (struct snd_compr_stream *stream,
95407 struct snd_compr_codec_caps *codec);
95408-};
95409+} __no_const;
95410
95411 /**
95412 * struct snd_compr: Compressed device
95413diff --git a/include/sound/soc.h b/include/sound/soc.h
95414index 0d1ade1..34e77d3 100644
95415--- a/include/sound/soc.h
95416+++ b/include/sound/soc.h
95417@@ -856,7 +856,7 @@ struct snd_soc_codec_driver {
95418 enum snd_soc_dapm_type, int);
95419
95420 bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */
95421-};
95422+} __do_const;
95423
95424 /* SoC platform interface */
95425 struct snd_soc_platform_driver {
95426@@ -883,7 +883,7 @@ struct snd_soc_platform_driver {
95427 const struct snd_compr_ops *compr_ops;
95428
95429 int (*bespoke_trigger)(struct snd_pcm_substream *, int);
95430-};
95431+} __do_const;
95432
95433 struct snd_soc_dai_link_component {
95434 const char *name;
95435diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
95436index 985ca4c..b55b54a 100644
95437--- a/include/target/target_core_base.h
95438+++ b/include/target/target_core_base.h
95439@@ -767,7 +767,7 @@ struct se_device {
95440 atomic_long_t write_bytes;
95441 /* Active commands on this virtual SE device */
95442 atomic_t simple_cmds;
95443- atomic_t dev_ordered_id;
95444+ atomic_unchecked_t dev_ordered_id;
95445 atomic_t dev_ordered_sync;
95446 atomic_t dev_qf_count;
95447 int export_count;
95448diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
95449new file mode 100644
95450index 0000000..fb634b7
95451--- /dev/null
95452+++ b/include/trace/events/fs.h
95453@@ -0,0 +1,53 @@
95454+#undef TRACE_SYSTEM
95455+#define TRACE_SYSTEM fs
95456+
95457+#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
95458+#define _TRACE_FS_H
95459+
95460+#include <linux/fs.h>
95461+#include <linux/tracepoint.h>
95462+
95463+TRACE_EVENT(do_sys_open,
95464+
95465+ TP_PROTO(const char *filename, int flags, int mode),
95466+
95467+ TP_ARGS(filename, flags, mode),
95468+
95469+ TP_STRUCT__entry(
95470+ __string( filename, filename )
95471+ __field( int, flags )
95472+ __field( int, mode )
95473+ ),
95474+
95475+ TP_fast_assign(
95476+ __assign_str(filename, filename);
95477+ __entry->flags = flags;
95478+ __entry->mode = mode;
95479+ ),
95480+
95481+ TP_printk("\"%s\" %x %o",
95482+ __get_str(filename), __entry->flags, __entry->mode)
95483+);
95484+
95485+TRACE_EVENT(open_exec,
95486+
95487+ TP_PROTO(const char *filename),
95488+
95489+ TP_ARGS(filename),
95490+
95491+ TP_STRUCT__entry(
95492+ __string( filename, filename )
95493+ ),
95494+
95495+ TP_fast_assign(
95496+ __assign_str(filename, filename);
95497+ ),
95498+
95499+ TP_printk("\"%s\"",
95500+ __get_str(filename))
95501+);
95502+
95503+#endif /* _TRACE_FS_H */
95504+
95505+/* This part must be outside protection */
95506+#include <trace/define_trace.h>
95507diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
95508index 3608beb..df39d8a 100644
95509--- a/include/trace/events/irq.h
95510+++ b/include/trace/events/irq.h
95511@@ -36,7 +36,7 @@ struct softirq_action;
95512 */
95513 TRACE_EVENT(irq_handler_entry,
95514
95515- TP_PROTO(int irq, struct irqaction *action),
95516+ TP_PROTO(int irq, const struct irqaction *action),
95517
95518 TP_ARGS(irq, action),
95519
95520@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
95521 */
95522 TRACE_EVENT(irq_handler_exit,
95523
95524- TP_PROTO(int irq, struct irqaction *action, int ret),
95525+ TP_PROTO(int irq, const struct irqaction *action, int ret),
95526
95527 TP_ARGS(irq, action, ret),
95528
95529diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
95530index 6eed16b..3e05750 100644
95531--- a/include/uapi/drm/i915_drm.h
95532+++ b/include/uapi/drm/i915_drm.h
95533@@ -347,6 +347,7 @@ typedef struct drm_i915_irq_wait {
95534 #define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
95535 #define I915_PARAM_MMAP_VERSION 30
95536 #define I915_PARAM_HAS_BSD2 31
95537+#define I915_PARAM_HAS_LEGACY_CONTEXT 35
95538
95539 typedef struct drm_i915_getparam {
95540 int param;
95541diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
95542index 7caf44c..23c6f27 100644
95543--- a/include/uapi/linux/a.out.h
95544+++ b/include/uapi/linux/a.out.h
95545@@ -39,6 +39,14 @@ enum machine_type {
95546 M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
95547 };
95548
95549+/* Constants for the N_FLAGS field */
95550+#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
95551+#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
95552+#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
95553+#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
95554+/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
95555+#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
95556+
95557 #if !defined (N_MAGIC)
95558 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
95559 #endif
95560diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
95561index 22b6ad3..aeba37e 100644
95562--- a/include/uapi/linux/bcache.h
95563+++ b/include/uapi/linux/bcache.h
95564@@ -5,6 +5,7 @@
95565 * Bcache on disk data structures
95566 */
95567
95568+#include <linux/compiler.h>
95569 #include <asm/types.h>
95570
95571 #define BITMASK(name, type, field, offset, size) \
95572@@ -20,8 +21,8 @@ static inline void SET_##name(type *k, __u64 v) \
95573 /* Btree keys - all units are in sectors */
95574
95575 struct bkey {
95576- __u64 high;
95577- __u64 low;
95578+ __u64 high __intentional_overflow(-1);
95579+ __u64 low __intentional_overflow(-1);
95580 __u64 ptr[];
95581 };
95582
95583diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
95584index d876736..ccce5c0 100644
95585--- a/include/uapi/linux/byteorder/little_endian.h
95586+++ b/include/uapi/linux/byteorder/little_endian.h
95587@@ -42,51 +42,51 @@
95588
95589 static inline __le64 __cpu_to_le64p(const __u64 *p)
95590 {
95591- return (__force __le64)*p;
95592+ return (__force const __le64)*p;
95593 }
95594-static inline __u64 __le64_to_cpup(const __le64 *p)
95595+static inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
95596 {
95597- return (__force __u64)*p;
95598+ return (__force const __u64)*p;
95599 }
95600 static inline __le32 __cpu_to_le32p(const __u32 *p)
95601 {
95602- return (__force __le32)*p;
95603+ return (__force const __le32)*p;
95604 }
95605 static inline __u32 __le32_to_cpup(const __le32 *p)
95606 {
95607- return (__force __u32)*p;
95608+ return (__force const __u32)*p;
95609 }
95610 static inline __le16 __cpu_to_le16p(const __u16 *p)
95611 {
95612- return (__force __le16)*p;
95613+ return (__force const __le16)*p;
95614 }
95615 static inline __u16 __le16_to_cpup(const __le16 *p)
95616 {
95617- return (__force __u16)*p;
95618+ return (__force const __u16)*p;
95619 }
95620 static inline __be64 __cpu_to_be64p(const __u64 *p)
95621 {
95622- return (__force __be64)__swab64p(p);
95623+ return (__force const __be64)__swab64p(p);
95624 }
95625 static inline __u64 __be64_to_cpup(const __be64 *p)
95626 {
95627- return __swab64p((__u64 *)p);
95628+ return __swab64p((const __u64 *)p);
95629 }
95630 static inline __be32 __cpu_to_be32p(const __u32 *p)
95631 {
95632- return (__force __be32)__swab32p(p);
95633+ return (__force const __be32)__swab32p(p);
95634 }
95635-static inline __u32 __be32_to_cpup(const __be32 *p)
95636+static inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
95637 {
95638- return __swab32p((__u32 *)p);
95639+ return __swab32p((const __u32 *)p);
95640 }
95641 static inline __be16 __cpu_to_be16p(const __u16 *p)
95642 {
95643- return (__force __be16)__swab16p(p);
95644+ return (__force const __be16)__swab16p(p);
95645 }
95646 static inline __u16 __be16_to_cpup(const __be16 *p)
95647 {
95648- return __swab16p((__u16 *)p);
95649+ return __swab16p((const __u16 *)p);
95650 }
95651 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
95652 #define __le64_to_cpus(x) do { (void)(x); } while (0)
95653diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
95654index 71e1d0e..6cc9caf 100644
95655--- a/include/uapi/linux/elf.h
95656+++ b/include/uapi/linux/elf.h
95657@@ -37,6 +37,17 @@ typedef __s64 Elf64_Sxword;
95658 #define PT_GNU_EH_FRAME 0x6474e550
95659
95660 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
95661+#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
95662+
95663+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
95664+
95665+/* Constants for the e_flags field */
95666+#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
95667+#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
95668+#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
95669+#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
95670+/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
95671+#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
95672
95673 /*
95674 * Extended Numbering
95675@@ -94,6 +105,8 @@ typedef __s64 Elf64_Sxword;
95676 #define DT_DEBUG 21
95677 #define DT_TEXTREL 22
95678 #define DT_JMPREL 23
95679+#define DT_FLAGS 30
95680+ #define DF_TEXTREL 0x00000004
95681 #define DT_ENCODING 32
95682 #define OLD_DT_LOOS 0x60000000
95683 #define DT_LOOS 0x6000000d
95684@@ -240,6 +253,19 @@ typedef struct elf64_hdr {
95685 #define PF_W 0x2
95686 #define PF_X 0x1
95687
95688+#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
95689+#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
95690+#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
95691+#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
95692+#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
95693+#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
95694+/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
95695+/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
95696+#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
95697+#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
95698+#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
95699+#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
95700+
95701 typedef struct elf32_phdr{
95702 Elf32_Word p_type;
95703 Elf32_Off p_offset;
95704@@ -332,6 +358,8 @@ typedef struct elf64_shdr {
95705 #define EI_OSABI 7
95706 #define EI_PAD 8
95707
95708+#define EI_PAX 14
95709+
95710 #define ELFMAG0 0x7f /* EI_MAG */
95711 #define ELFMAG1 'E'
95712 #define ELFMAG2 'L'
95713diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
95714index aa169c4..6a2771d 100644
95715--- a/include/uapi/linux/personality.h
95716+++ b/include/uapi/linux/personality.h
95717@@ -30,6 +30,7 @@ enum {
95718 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
95719 ADDR_NO_RANDOMIZE | \
95720 ADDR_COMPAT_LAYOUT | \
95721+ ADDR_LIMIT_3GB | \
95722 MMAP_PAGE_ZERO)
95723
95724 /*
95725diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
95726index 7530e74..e714828 100644
95727--- a/include/uapi/linux/screen_info.h
95728+++ b/include/uapi/linux/screen_info.h
95729@@ -43,7 +43,8 @@ struct screen_info {
95730 __u16 pages; /* 0x32 */
95731 __u16 vesa_attributes; /* 0x34 */
95732 __u32 capabilities; /* 0x36 */
95733- __u8 _reserved[6]; /* 0x3a */
95734+ __u16 vesapm_size; /* 0x3a */
95735+ __u8 _reserved[4]; /* 0x3c */
95736 } __attribute__((packed));
95737
95738 #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
95739diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
95740index 0e011eb..82681b1 100644
95741--- a/include/uapi/linux/swab.h
95742+++ b/include/uapi/linux/swab.h
95743@@ -43,7 +43,7 @@
95744 * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
95745 */
95746
95747-static inline __attribute_const__ __u16 __fswab16(__u16 val)
95748+static inline __intentional_overflow(-1) __attribute_const__ __u16 __fswab16(__u16 val)
95749 {
95750 #ifdef __HAVE_BUILTIN_BSWAP16__
95751 return __builtin_bswap16(val);
95752@@ -54,7 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
95753 #endif
95754 }
95755
95756-static inline __attribute_const__ __u32 __fswab32(__u32 val)
95757+static inline __intentional_overflow(-1) __attribute_const__ __u32 __fswab32(__u32 val)
95758 {
95759 #ifdef __HAVE_BUILTIN_BSWAP32__
95760 return __builtin_bswap32(val);
95761@@ -65,7 +65,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
95762 #endif
95763 }
95764
95765-static inline __attribute_const__ __u64 __fswab64(__u64 val)
95766+static inline __intentional_overflow(-1) __attribute_const__ __u64 __fswab64(__u64 val)
95767 {
95768 #ifdef __HAVE_BUILTIN_BSWAP64__
95769 return __builtin_bswap64(val);
95770diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
95771index 1590c49..5eab462 100644
95772--- a/include/uapi/linux/xattr.h
95773+++ b/include/uapi/linux/xattr.h
95774@@ -73,5 +73,9 @@
95775 #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default"
95776 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
95777
95778+/* User namespace */
95779+#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
95780+#define XATTR_PAX_FLAGS_SUFFIX "flags"
95781+#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
95782
95783 #endif /* _UAPI_LINUX_XATTR_H */
95784diff --git a/include/video/udlfb.h b/include/video/udlfb.h
95785index f9466fa..f4e2b81 100644
95786--- a/include/video/udlfb.h
95787+++ b/include/video/udlfb.h
95788@@ -53,10 +53,10 @@ struct dlfb_data {
95789 u32 pseudo_palette[256];
95790 int blank_mode; /*one of FB_BLANK_ */
95791 /* blit-only rendering path metrics, exposed through sysfs */
95792- atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
95793- atomic_t bytes_identical; /* saved effort with backbuffer comparison */
95794- atomic_t bytes_sent; /* to usb, after compression including overhead */
95795- atomic_t cpu_kcycles_used; /* transpired during pixel processing */
95796+ atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
95797+ atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
95798+ atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
95799+ atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
95800 };
95801
95802 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
95803diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
95804index 30f5362..8ed8ac9 100644
95805--- a/include/video/uvesafb.h
95806+++ b/include/video/uvesafb.h
95807@@ -122,6 +122,7 @@ struct uvesafb_par {
95808 u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
95809 u8 pmi_setpal; /* PMI for palette changes */
95810 u16 *pmi_base; /* protected mode interface location */
95811+ u8 *pmi_code; /* protected mode code location */
95812 void *pmi_start;
95813 void *pmi_pal;
95814 u8 *vbe_state_orig; /*
95815diff --git a/init/Kconfig b/init/Kconfig
95816index f5dbc6d..8259396 100644
95817--- a/init/Kconfig
95818+++ b/init/Kconfig
95819@@ -1136,6 +1136,7 @@ endif # CGROUPS
95820
95821 config CHECKPOINT_RESTORE
95822 bool "Checkpoint/restore support" if EXPERT
95823+ depends on !GRKERNSEC
95824 default n
95825 help
95826 Enables additional kernel features in a sake of checkpoint/restore.
95827@@ -1646,7 +1647,7 @@ config SLUB_DEBUG
95828
95829 config COMPAT_BRK
95830 bool "Disable heap randomization"
95831- default y
95832+ default n
95833 help
95834 Randomizing heap placement makes heap exploits harder, but it
95835 also breaks ancient binaries (including anything libc5 based).
95836@@ -1977,7 +1978,7 @@ config INIT_ALL_POSSIBLE
95837 config STOP_MACHINE
95838 bool
95839 default y
95840- depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
95841+ depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
95842 help
95843 Need stop_machine() primitive.
95844
95845diff --git a/init/Makefile b/init/Makefile
95846index 7bc47ee..6da2dc7 100644
95847--- a/init/Makefile
95848+++ b/init/Makefile
95849@@ -2,6 +2,9 @@
95850 # Makefile for the linux kernel.
95851 #
95852
95853+ccflags-y := $(GCC_PLUGINS_CFLAGS)
95854+asflags-y := $(GCC_PLUGINS_AFLAGS)
95855+
95856 obj-y := main.o version.o mounts.o
95857 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
95858 obj-y += noinitramfs.o
95859diff --git a/init/do_mounts.c b/init/do_mounts.c
95860index eb41008..f5dbbf9 100644
95861--- a/init/do_mounts.c
95862+++ b/init/do_mounts.c
95863@@ -360,11 +360,11 @@ static void __init get_fs_names(char *page)
95864 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
95865 {
95866 struct super_block *s;
95867- int err = sys_mount(name, "/root", fs, flags, data);
95868+ int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
95869 if (err)
95870 return err;
95871
95872- sys_chdir("/root");
95873+ sys_chdir((const char __force_user *)"/root");
95874 s = current->fs->pwd.dentry->d_sb;
95875 ROOT_DEV = s->s_dev;
95876 printk(KERN_INFO
95877@@ -487,18 +487,18 @@ void __init change_floppy(char *fmt, ...)
95878 va_start(args, fmt);
95879 vsprintf(buf, fmt, args);
95880 va_end(args);
95881- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
95882+ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
95883 if (fd >= 0) {
95884 sys_ioctl(fd, FDEJECT, 0);
95885 sys_close(fd);
95886 }
95887 printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
95888- fd = sys_open("/dev/console", O_RDWR, 0);
95889+ fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
95890 if (fd >= 0) {
95891 sys_ioctl(fd, TCGETS, (long)&termios);
95892 termios.c_lflag &= ~ICANON;
95893 sys_ioctl(fd, TCSETSF, (long)&termios);
95894- sys_read(fd, &c, 1);
95895+ sys_read(fd, (char __user *)&c, 1);
95896 termios.c_lflag |= ICANON;
95897 sys_ioctl(fd, TCSETSF, (long)&termios);
95898 sys_close(fd);
95899@@ -592,8 +592,8 @@ void __init prepare_namespace(void)
95900 mount_root();
95901 out:
95902 devtmpfs_mount("dev");
95903- sys_mount(".", "/", NULL, MS_MOVE, NULL);
95904- sys_chroot(".");
95905+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
95906+ sys_chroot((const char __force_user *)".");
95907 }
95908
95909 static bool is_tmpfs;
95910diff --git a/init/do_mounts.h b/init/do_mounts.h
95911index f5b978a..69dbfe8 100644
95912--- a/init/do_mounts.h
95913+++ b/init/do_mounts.h
95914@@ -15,15 +15,15 @@ extern int root_mountflags;
95915
95916 static inline int create_dev(char *name, dev_t dev)
95917 {
95918- sys_unlink(name);
95919- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
95920+ sys_unlink((char __force_user *)name);
95921+ return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
95922 }
95923
95924 #if BITS_PER_LONG == 32
95925 static inline u32 bstat(char *name)
95926 {
95927 struct stat64 stat;
95928- if (sys_stat64(name, &stat) != 0)
95929+ if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
95930 return 0;
95931 if (!S_ISBLK(stat.st_mode))
95932 return 0;
95933@@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
95934 static inline u32 bstat(char *name)
95935 {
95936 struct stat stat;
95937- if (sys_newstat(name, &stat) != 0)
95938+ if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
95939 return 0;
95940 if (!S_ISBLK(stat.st_mode))
95941 return 0;
95942diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
95943index 3e0878e..8a9d7a0 100644
95944--- a/init/do_mounts_initrd.c
95945+++ b/init/do_mounts_initrd.c
95946@@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
95947 {
95948 sys_unshare(CLONE_FS | CLONE_FILES);
95949 /* stdin/stdout/stderr for /linuxrc */
95950- sys_open("/dev/console", O_RDWR, 0);
95951+ sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
95952 sys_dup(0);
95953 sys_dup(0);
95954 /* move initrd over / and chdir/chroot in initrd root */
95955- sys_chdir("/root");
95956- sys_mount(".", "/", NULL, MS_MOVE, NULL);
95957- sys_chroot(".");
95958+ sys_chdir((const char __force_user *)"/root");
95959+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
95960+ sys_chroot((const char __force_user *)".");
95961 sys_setsid();
95962 return 0;
95963 }
95964@@ -59,8 +59,8 @@ static void __init handle_initrd(void)
95965 create_dev("/dev/root.old", Root_RAM0);
95966 /* mount initrd on rootfs' /root */
95967 mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
95968- sys_mkdir("/old", 0700);
95969- sys_chdir("/old");
95970+ sys_mkdir((const char __force_user *)"/old", 0700);
95971+ sys_chdir((const char __force_user *)"/old");
95972
95973 /* try loading default modules from initrd */
95974 load_default_modules();
95975@@ -80,31 +80,31 @@ static void __init handle_initrd(void)
95976 current->flags &= ~PF_FREEZER_SKIP;
95977
95978 /* move initrd to rootfs' /old */
95979- sys_mount("..", ".", NULL, MS_MOVE, NULL);
95980+ sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
95981 /* switch root and cwd back to / of rootfs */
95982- sys_chroot("..");
95983+ sys_chroot((const char __force_user *)"..");
95984
95985 if (new_decode_dev(real_root_dev) == Root_RAM0) {
95986- sys_chdir("/old");
95987+ sys_chdir((const char __force_user *)"/old");
95988 return;
95989 }
95990
95991- sys_chdir("/");
95992+ sys_chdir((const char __force_user *)"/");
95993 ROOT_DEV = new_decode_dev(real_root_dev);
95994 mount_root();
95995
95996 printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
95997- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
95998+ error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
95999 if (!error)
96000 printk("okay\n");
96001 else {
96002- int fd = sys_open("/dev/root.old", O_RDWR, 0);
96003+ int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
96004 if (error == -ENOENT)
96005 printk("/initrd does not exist. Ignored.\n");
96006 else
96007 printk("failed\n");
96008 printk(KERN_NOTICE "Unmounting old root\n");
96009- sys_umount("/old", MNT_DETACH);
96010+ sys_umount((char __force_user *)"/old", MNT_DETACH);
96011 printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
96012 if (fd < 0) {
96013 error = fd;
96014@@ -127,11 +127,11 @@ int __init initrd_load(void)
96015 * mounted in the normal path.
96016 */
96017 if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
96018- sys_unlink("/initrd.image");
96019+ sys_unlink((const char __force_user *)"/initrd.image");
96020 handle_initrd();
96021 return 1;
96022 }
96023 }
96024- sys_unlink("/initrd.image");
96025+ sys_unlink((const char __force_user *)"/initrd.image");
96026 return 0;
96027 }
96028diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
96029index 8cb6db5..d729f50 100644
96030--- a/init/do_mounts_md.c
96031+++ b/init/do_mounts_md.c
96032@@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
96033 partitioned ? "_d" : "", minor,
96034 md_setup_args[ent].device_names);
96035
96036- fd = sys_open(name, 0, 0);
96037+ fd = sys_open((char __force_user *)name, 0, 0);
96038 if (fd < 0) {
96039 printk(KERN_ERR "md: open failed - cannot start "
96040 "array %s\n", name);
96041@@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
96042 * array without it
96043 */
96044 sys_close(fd);
96045- fd = sys_open(name, 0, 0);
96046+ fd = sys_open((char __force_user *)name, 0, 0);
96047 sys_ioctl(fd, BLKRRPART, 0);
96048 }
96049 sys_close(fd);
96050@@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
96051
96052 wait_for_device_probe();
96053
96054- fd = sys_open("/dev/md0", 0, 0);
96055+ fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
96056 if (fd >= 0) {
96057 sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
96058 sys_close(fd);
96059diff --git a/init/init_task.c b/init/init_task.c
96060index ba0a7f36..2bcf1d5 100644
96061--- a/init/init_task.c
96062+++ b/init/init_task.c
96063@@ -22,5 +22,9 @@ EXPORT_SYMBOL(init_task);
96064 * Initial thread structure. Alignment of this is handled by a special
96065 * linker map entry.
96066 */
96067+#ifdef CONFIG_X86
96068+union thread_union init_thread_union __init_task_data;
96069+#else
96070 union thread_union init_thread_union __init_task_data =
96071 { INIT_THREAD_INFO(init_task) };
96072+#endif
96073diff --git a/init/initramfs.c b/init/initramfs.c
96074index ad1bd77..dca2c1b 100644
96075--- a/init/initramfs.c
96076+++ b/init/initramfs.c
96077@@ -25,7 +25,7 @@ static ssize_t __init xwrite(int fd, const char *p, size_t count)
96078
96079 /* sys_write only can write MAX_RW_COUNT aka 2G-4K bytes at most */
96080 while (count) {
96081- ssize_t rv = sys_write(fd, p, count);
96082+ ssize_t rv = sys_write(fd, (char __force_user *)p, count);
96083
96084 if (rv < 0) {
96085 if (rv == -EINTR || rv == -EAGAIN)
96086@@ -107,7 +107,7 @@ static void __init free_hash(void)
96087 }
96088 }
96089
96090-static long __init do_utime(char *filename, time_t mtime)
96091+static long __init do_utime(char __force_user *filename, time_t mtime)
96092 {
96093 struct timespec t[2];
96094
96095@@ -142,7 +142,7 @@ static void __init dir_utime(void)
96096 struct dir_entry *de, *tmp;
96097 list_for_each_entry_safe(de, tmp, &dir_list, list) {
96098 list_del(&de->list);
96099- do_utime(de->name, de->mtime);
96100+ do_utime((char __force_user *)de->name, de->mtime);
96101 kfree(de->name);
96102 kfree(de);
96103 }
96104@@ -304,7 +304,7 @@ static int __init maybe_link(void)
96105 if (nlink >= 2) {
96106 char *old = find_link(major, minor, ino, mode, collected);
96107 if (old)
96108- return (sys_link(old, collected) < 0) ? -1 : 1;
96109+ return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
96110 }
96111 return 0;
96112 }
96113@@ -313,11 +313,11 @@ static void __init clean_path(char *path, umode_t fmode)
96114 {
96115 struct stat st;
96116
96117- if (!sys_newlstat(path, &st) && (st.st_mode ^ fmode) & S_IFMT) {
96118+ if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode ^ fmode) & S_IFMT) {
96119 if (S_ISDIR(st.st_mode))
96120- sys_rmdir(path);
96121+ sys_rmdir((char __force_user *)path);
96122 else
96123- sys_unlink(path);
96124+ sys_unlink((char __force_user *)path);
96125 }
96126 }
96127
96128@@ -338,7 +338,7 @@ static int __init do_name(void)
96129 int openflags = O_WRONLY|O_CREAT;
96130 if (ml != 1)
96131 openflags |= O_TRUNC;
96132- wfd = sys_open(collected, openflags, mode);
96133+ wfd = sys_open((char __force_user *)collected, openflags, mode);
96134
96135 if (wfd >= 0) {
96136 sys_fchown(wfd, uid, gid);
96137@@ -350,17 +350,17 @@ static int __init do_name(void)
96138 }
96139 }
96140 } else if (S_ISDIR(mode)) {
96141- sys_mkdir(collected, mode);
96142- sys_chown(collected, uid, gid);
96143- sys_chmod(collected, mode);
96144+ sys_mkdir((char __force_user *)collected, mode);
96145+ sys_chown((char __force_user *)collected, uid, gid);
96146+ sys_chmod((char __force_user *)collected, mode);
96147 dir_add(collected, mtime);
96148 } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
96149 S_ISFIFO(mode) || S_ISSOCK(mode)) {
96150 if (maybe_link() == 0) {
96151- sys_mknod(collected, mode, rdev);
96152- sys_chown(collected, uid, gid);
96153- sys_chmod(collected, mode);
96154- do_utime(collected, mtime);
96155+ sys_mknod((char __force_user *)collected, mode, rdev);
96156+ sys_chown((char __force_user *)collected, uid, gid);
96157+ sys_chmod((char __force_user *)collected, mode);
96158+ do_utime((char __force_user *)collected, mtime);
96159 }
96160 }
96161 return 0;
96162@@ -372,7 +372,7 @@ static int __init do_copy(void)
96163 if (xwrite(wfd, victim, body_len) != body_len)
96164 error("write error");
96165 sys_close(wfd);
96166- do_utime(vcollected, mtime);
96167+ do_utime((char __force_user *)vcollected, mtime);
96168 kfree(vcollected);
96169 eat(body_len);
96170 state = SkipIt;
96171@@ -390,9 +390,9 @@ static int __init do_symlink(void)
96172 {
96173 collected[N_ALIGN(name_len) + body_len] = '\0';
96174 clean_path(collected, 0);
96175- sys_symlink(collected + N_ALIGN(name_len), collected);
96176- sys_lchown(collected, uid, gid);
96177- do_utime(collected, mtime);
96178+ sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
96179+ sys_lchown((char __force_user *)collected, uid, gid);
96180+ do_utime((char __force_user *)collected, mtime);
96181 state = SkipIt;
96182 next_state = Reset;
96183 return 0;
96184diff --git a/init/main.c b/init/main.c
96185index 6f0f1c5f..a542824 100644
96186--- a/init/main.c
96187+++ b/init/main.c
96188@@ -96,6 +96,8 @@ extern void radix_tree_init(void);
96189 static inline void mark_rodata_ro(void) { }
96190 #endif
96191
96192+extern void grsecurity_init(void);
96193+
96194 /*
96195 * Debug helper: via this flag we know that we are in 'early bootup code'
96196 * where only the boot processor is running with IRQ disabled. This means
96197@@ -157,6 +159,85 @@ static int __init set_reset_devices(char *str)
96198
96199 __setup("reset_devices", set_reset_devices);
96200
96201+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
96202+kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
96203+static int __init setup_grsec_proc_gid(char *str)
96204+{
96205+ grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
96206+ return 1;
96207+}
96208+__setup("grsec_proc_gid=", setup_grsec_proc_gid);
96209+#endif
96210+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
96211+int grsec_enable_sysfs_restrict = 1;
96212+static int __init setup_grsec_sysfs_restrict(char *str)
96213+{
96214+ if (!simple_strtol(str, NULL, 0))
96215+ grsec_enable_sysfs_restrict = 0;
96216+ return 1;
96217+}
96218+__setup("grsec_sysfs_restrict", setup_grsec_sysfs_restrict);
96219+#endif
96220+
96221+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
96222+unsigned long pax_user_shadow_base __read_only;
96223+EXPORT_SYMBOL(pax_user_shadow_base);
96224+extern char pax_enter_kernel_user[];
96225+extern char pax_exit_kernel_user[];
96226+#endif
96227+
96228+#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
96229+static int __init setup_pax_nouderef(char *str)
96230+{
96231+#ifdef CONFIG_X86_32
96232+ unsigned int cpu;
96233+ struct desc_struct *gdt;
96234+
96235+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
96236+ gdt = get_cpu_gdt_table(cpu);
96237+ gdt[GDT_ENTRY_KERNEL_DS].type = 3;
96238+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
96239+ gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
96240+ gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
96241+ }
96242+ loadsegment(ds, __KERNEL_DS);
96243+ loadsegment(es, __KERNEL_DS);
96244+ loadsegment(ss, __KERNEL_DS);
96245+#else
96246+ memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
96247+ memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
96248+ clone_pgd_mask = ~(pgdval_t)0UL;
96249+ pax_user_shadow_base = 0UL;
96250+ setup_clear_cpu_cap(X86_FEATURE_PCID);
96251+ setup_clear_cpu_cap(X86_FEATURE_INVPCID);
96252+#endif
96253+
96254+ return 0;
96255+}
96256+early_param("pax_nouderef", setup_pax_nouderef);
96257+
96258+#ifdef CONFIG_X86_64
96259+static int __init setup_pax_weakuderef(char *str)
96260+{
96261+ if (clone_pgd_mask != ~(pgdval_t)0UL)
96262+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
96263+ return 1;
96264+}
96265+__setup("pax_weakuderef", setup_pax_weakuderef);
96266+#endif
96267+#endif
96268+
96269+#ifdef CONFIG_PAX_SOFTMODE
96270+int pax_softmode;
96271+
96272+static int __init setup_pax_softmode(char *str)
96273+{
96274+ get_option(&str, &pax_softmode);
96275+ return 1;
96276+}
96277+__setup("pax_softmode=", setup_pax_softmode);
96278+#endif
96279+
96280 static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
96281 const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
96282 static const char *panic_later, *panic_param;
96283@@ -722,7 +803,7 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
96284 struct blacklist_entry *entry;
96285 char *fn_name;
96286
96287- fn_name = kasprintf(GFP_KERNEL, "%pf", fn);
96288+ fn_name = kasprintf(GFP_KERNEL, "%pX", fn);
96289 if (!fn_name)
96290 return false;
96291
96292@@ -774,7 +855,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
96293 {
96294 int count = preempt_count();
96295 int ret;
96296- char msgbuf[64];
96297+ const char *msg1 = "", *msg2 = "";
96298
96299 if (initcall_blacklisted(fn))
96300 return -EPERM;
96301@@ -784,18 +865,17 @@ int __init_or_module do_one_initcall(initcall_t fn)
96302 else
96303 ret = fn();
96304
96305- msgbuf[0] = 0;
96306-
96307 if (preempt_count() != count) {
96308- sprintf(msgbuf, "preemption imbalance ");
96309+ msg1 = " preemption imbalance";
96310 preempt_count_set(count);
96311 }
96312 if (irqs_disabled()) {
96313- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
96314+ msg2 = " disabled interrupts";
96315 local_irq_enable();
96316 }
96317- WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);
96318+ WARN(*msg1 || *msg2, "initcall %pF returned with%s%s\n", fn, msg1, msg2);
96319
96320+ add_latent_entropy();
96321 return ret;
96322 }
96323
96324@@ -901,8 +981,8 @@ static int run_init_process(const char *init_filename)
96325 {
96326 argv_init[0] = init_filename;
96327 return do_execve(getname_kernel(init_filename),
96328- (const char __user *const __user *)argv_init,
96329- (const char __user *const __user *)envp_init);
96330+ (const char __user *const __force_user *)argv_init,
96331+ (const char __user *const __force_user *)envp_init);
96332 }
96333
96334 static int try_to_run_init_process(const char *init_filename)
96335@@ -919,6 +999,10 @@ static int try_to_run_init_process(const char *init_filename)
96336 return ret;
96337 }
96338
96339+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
96340+extern int gr_init_ran;
96341+#endif
96342+
96343 static noinline void __init kernel_init_freeable(void);
96344
96345 static int __ref kernel_init(void *unused)
96346@@ -943,6 +1027,11 @@ static int __ref kernel_init(void *unused)
96347 ramdisk_execute_command, ret);
96348 }
96349
96350+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
96351+ /* if no initrd was used, be extra sure we enforce chroot restrictions */
96352+ gr_init_ran = 1;
96353+#endif
96354+
96355 /*
96356 * We try each of these until one succeeds.
96357 *
96358@@ -998,7 +1087,7 @@ static noinline void __init kernel_init_freeable(void)
96359 do_basic_setup();
96360
96361 /* Open the /dev/console on the rootfs, this should never fail */
96362- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
96363+ if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
96364 pr_err("Warning: unable to open an initial console.\n");
96365
96366 (void) sys_dup(0);
96367@@ -1011,11 +1100,13 @@ static noinline void __init kernel_init_freeable(void)
96368 if (!ramdisk_execute_command)
96369 ramdisk_execute_command = "/init";
96370
96371- if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
96372+ if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
96373 ramdisk_execute_command = NULL;
96374 prepare_namespace();
96375 }
96376
96377+ grsecurity_init();
96378+
96379 /*
96380 * Ok, we have completed the initial bootup, and
96381 * we're essentially up and running. Get rid of the
96382diff --git a/ipc/compat.c b/ipc/compat.c
96383index 9b3c85f..5266b0f 100644
96384--- a/ipc/compat.c
96385+++ b/ipc/compat.c
96386@@ -396,7 +396,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
96387 COMPAT_SHMLBA);
96388 if (err < 0)
96389 return err;
96390- return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
96391+ return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
96392 }
96393 case SHMDT:
96394 return sys_shmdt(compat_ptr(ptr));
96395@@ -747,7 +747,7 @@ COMPAT_SYSCALL_DEFINE3(shmctl, int, first, int, second, void __user *, uptr)
96396 }
96397
96398 COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
96399- unsigned, nsops,
96400+ compat_long_t, nsops,
96401 const struct compat_timespec __user *, timeout)
96402 {
96403 struct timespec __user *ts64;
96404diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
96405index 8ad93c2..efd80f8 100644
96406--- a/ipc/ipc_sysctl.c
96407+++ b/ipc/ipc_sysctl.c
96408@@ -30,7 +30,7 @@ static void *get_ipc(struct ctl_table *table)
96409 static int proc_ipc_dointvec(struct ctl_table *table, int write,
96410 void __user *buffer, size_t *lenp, loff_t *ppos)
96411 {
96412- struct ctl_table ipc_table;
96413+ ctl_table_no_const ipc_table;
96414
96415 memcpy(&ipc_table, table, sizeof(ipc_table));
96416 ipc_table.data = get_ipc(table);
96417@@ -41,7 +41,7 @@ static int proc_ipc_dointvec(struct ctl_table *table, int write,
96418 static int proc_ipc_dointvec_minmax(struct ctl_table *table, int write,
96419 void __user *buffer, size_t *lenp, loff_t *ppos)
96420 {
96421- struct ctl_table ipc_table;
96422+ ctl_table_no_const ipc_table;
96423
96424 memcpy(&ipc_table, table, sizeof(ipc_table));
96425 ipc_table.data = get_ipc(table);
96426@@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
96427 static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
96428 void __user *buffer, size_t *lenp, loff_t *ppos)
96429 {
96430- struct ctl_table ipc_table;
96431+ ctl_table_no_const ipc_table;
96432 memcpy(&ipc_table, table, sizeof(ipc_table));
96433 ipc_table.data = get_ipc(table);
96434
96435@@ -76,7 +76,7 @@ static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
96436 static int proc_ipc_auto_msgmni(struct ctl_table *table, int write,
96437 void __user *buffer, size_t *lenp, loff_t *ppos)
96438 {
96439- struct ctl_table ipc_table;
96440+ ctl_table_no_const ipc_table;
96441 int dummy = 0;
96442
96443 memcpy(&ipc_table, table, sizeof(ipc_table));
96444diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
96445index 68d4e95..1477ded 100644
96446--- a/ipc/mq_sysctl.c
96447+++ b/ipc/mq_sysctl.c
96448@@ -25,7 +25,7 @@ static void *get_mq(struct ctl_table *table)
96449 static int proc_mq_dointvec(struct ctl_table *table, int write,
96450 void __user *buffer, size_t *lenp, loff_t *ppos)
96451 {
96452- struct ctl_table mq_table;
96453+ ctl_table_no_const mq_table;
96454 memcpy(&mq_table, table, sizeof(mq_table));
96455 mq_table.data = get_mq(table);
96456
96457@@ -35,7 +35,7 @@ static int proc_mq_dointvec(struct ctl_table *table, int write,
96458 static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
96459 void __user *buffer, size_t *lenp, loff_t *ppos)
96460 {
96461- struct ctl_table mq_table;
96462+ ctl_table_no_const mq_table;
96463 memcpy(&mq_table, table, sizeof(mq_table));
96464 mq_table.data = get_mq(table);
96465
96466diff --git a/ipc/mqueue.c b/ipc/mqueue.c
96467index 7635a1c..7432cb6 100644
96468--- a/ipc/mqueue.c
96469+++ b/ipc/mqueue.c
96470@@ -278,6 +278,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
96471 mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
96472 info->attr.mq_msgsize);
96473
96474+ gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
96475 spin_lock(&mq_lock);
96476 if (u->mq_bytes + mq_bytes < u->mq_bytes ||
96477 u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
96478diff --git a/ipc/sem.c b/ipc/sem.c
96479index 9284211..bca5b1b 100644
96480--- a/ipc/sem.c
96481+++ b/ipc/sem.c
96482@@ -1780,7 +1780,7 @@ static int get_queue_result(struct sem_queue *q)
96483 }
96484
96485 SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
96486- unsigned, nsops, const struct timespec __user *, timeout)
96487+ long, nsops, const struct timespec __user *, timeout)
96488 {
96489 int error = -EINVAL;
96490 struct sem_array *sma;
96491@@ -2015,7 +2015,7 @@ out_free:
96492 }
96493
96494 SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
96495- unsigned, nsops)
96496+ long, nsops)
96497 {
96498 return sys_semtimedop(semid, tsops, nsops, NULL);
96499 }
96500diff --git a/ipc/shm.c b/ipc/shm.c
96501index 19633b4..d454904 100644
96502--- a/ipc/shm.c
96503+++ b/ipc/shm.c
96504@@ -72,6 +72,14 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
96505 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
96506 #endif
96507
96508+#ifdef CONFIG_GRKERNSEC
96509+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
96510+ const u64 shm_createtime, const kuid_t cuid,
96511+ const int shmid);
96512+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
96513+ const u64 shm_createtime);
96514+#endif
96515+
96516 void shm_init_ns(struct ipc_namespace *ns)
96517 {
96518 ns->shm_ctlmax = SHMMAX;
96519@@ -560,6 +568,9 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
96520 shp->shm_lprid = 0;
96521 shp->shm_atim = shp->shm_dtim = 0;
96522 shp->shm_ctim = get_seconds();
96523+#ifdef CONFIG_GRKERNSEC
96524+ shp->shm_createtime = ktime_get_ns();
96525+#endif
96526 shp->shm_segsz = size;
96527 shp->shm_nattch = 0;
96528 shp->shm_file = file;
96529@@ -1096,6 +1107,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96530 f_mode = FMODE_READ | FMODE_WRITE;
96531 }
96532 if (shmflg & SHM_EXEC) {
96533+
96534+#ifdef CONFIG_PAX_MPROTECT
96535+ if (current->mm->pax_flags & MF_PAX_MPROTECT)
96536+ goto out;
96537+#endif
96538+
96539 prot |= PROT_EXEC;
96540 acc_mode |= S_IXUGO;
96541 }
96542@@ -1120,6 +1137,15 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96543 if (err)
96544 goto out_unlock;
96545
96546+#ifdef CONFIG_GRKERNSEC
96547+ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
96548+ shp->shm_perm.cuid, shmid) ||
96549+ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
96550+ err = -EACCES;
96551+ goto out_unlock;
96552+ }
96553+#endif
96554+
96555 ipc_lock_object(&shp->shm_perm);
96556
96557 /* check if shm_destroy() is tearing down shp */
96558@@ -1132,6 +1158,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96559 path = shp->shm_file->f_path;
96560 path_get(&path);
96561 shp->shm_nattch++;
96562+#ifdef CONFIG_GRKERNSEC
96563+ shp->shm_lapid = current->pid;
96564+#endif
96565 size = i_size_read(path.dentry->d_inode);
96566 ipc_unlock_object(&shp->shm_perm);
96567 rcu_read_unlock();
96568diff --git a/ipc/util.c b/ipc/util.c
96569index 106bed0..f851429 100644
96570--- a/ipc/util.c
96571+++ b/ipc/util.c
96572@@ -71,6 +71,8 @@ struct ipc_proc_iface {
96573 int (*show)(struct seq_file *, void *);
96574 };
96575
96576+extern int gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode);
96577+
96578 /**
96579 * ipc_init - initialise ipc subsystem
96580 *
96581@@ -497,6 +499,10 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
96582 granted_mode >>= 6;
96583 else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
96584 granted_mode >>= 3;
96585+
96586+ if (!gr_ipc_permitted(ns, ipcp, requested_mode, granted_mode))
96587+ return -1;
96588+
96589 /* is there some bit set in requested_mode but not in granted_mode? */
96590 if ((requested_mode & ~granted_mode & 0007) &&
96591 !ns_capable(ns->user_ns, CAP_IPC_OWNER))
96592diff --git a/kernel/audit.c b/kernel/audit.c
96593index 72ab759..757deba 100644
96594--- a/kernel/audit.c
96595+++ b/kernel/audit.c
96596@@ -122,7 +122,7 @@ u32 audit_sig_sid = 0;
96597 3) suppressed due to audit_rate_limit
96598 4) suppressed due to audit_backlog_limit
96599 */
96600-static atomic_t audit_lost = ATOMIC_INIT(0);
96601+static atomic_unchecked_t audit_lost = ATOMIC_INIT(0);
96602
96603 /* The netlink socket. */
96604 static struct sock *audit_sock;
96605@@ -256,7 +256,7 @@ void audit_log_lost(const char *message)
96606 unsigned long now;
96607 int print;
96608
96609- atomic_inc(&audit_lost);
96610+ atomic_inc_unchecked(&audit_lost);
96611
96612 print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
96613
96614@@ -273,7 +273,7 @@ void audit_log_lost(const char *message)
96615 if (print) {
96616 if (printk_ratelimit())
96617 pr_warn("audit_lost=%u audit_rate_limit=%u audit_backlog_limit=%u\n",
96618- atomic_read(&audit_lost),
96619+ atomic_read_unchecked(&audit_lost),
96620 audit_rate_limit,
96621 audit_backlog_limit);
96622 audit_panic(message);
96623@@ -831,7 +831,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
96624 s.pid = audit_pid;
96625 s.rate_limit = audit_rate_limit;
96626 s.backlog_limit = audit_backlog_limit;
96627- s.lost = atomic_read(&audit_lost);
96628+ s.lost = atomic_read_unchecked(&audit_lost);
96629 s.backlog = skb_queue_len(&audit_skb_queue);
96630 s.feature_bitmap = AUDIT_FEATURE_BITMAP_ALL;
96631 s.backlog_wait_time = audit_backlog_wait_time;
96632diff --git a/kernel/auditsc.c b/kernel/auditsc.c
96633index dc4ae70..2a2bddc 100644
96634--- a/kernel/auditsc.c
96635+++ b/kernel/auditsc.c
96636@@ -1955,7 +1955,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
96637 }
96638
96639 /* global counter which is incremented every time something logs in */
96640-static atomic_t session_id = ATOMIC_INIT(0);
96641+static atomic_unchecked_t session_id = ATOMIC_INIT(0);
96642
96643 static int audit_set_loginuid_perm(kuid_t loginuid)
96644 {
96645@@ -2022,7 +2022,7 @@ int audit_set_loginuid(kuid_t loginuid)
96646
96647 /* are we setting or clearing? */
96648 if (uid_valid(loginuid))
96649- sessionid = (unsigned int)atomic_inc_return(&session_id);
96650+ sessionid = (unsigned int)atomic_inc_return_unchecked(&session_id);
96651
96652 task->sessionid = sessionid;
96653 task->loginuid = loginuid;
96654diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
96655index 0c5796e..a9414e2 100644
96656--- a/kernel/bpf/core.c
96657+++ b/kernel/bpf/core.c
96658@@ -143,14 +143,17 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
96659 * random section of illegal instructions.
96660 */
96661 size = round_up(proglen + sizeof(*hdr) + 128, PAGE_SIZE);
96662- hdr = module_alloc(size);
96663+ hdr = module_alloc_exec(size);
96664 if (hdr == NULL)
96665 return NULL;
96666
96667 /* Fill space with illegal/arch-dep instructions. */
96668 bpf_fill_ill_insns(hdr, size);
96669
96670+ pax_open_kernel();
96671 hdr->pages = size / PAGE_SIZE;
96672+ pax_close_kernel();
96673+
96674 hole = min_t(unsigned int, size - (proglen + sizeof(*hdr)),
96675 PAGE_SIZE - sizeof(*hdr));
96676 start = (prandom_u32() % hole) & ~(alignment - 1);
96677@@ -163,7 +166,7 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
96678
96679 void bpf_jit_binary_free(struct bpf_binary_header *hdr)
96680 {
96681- module_memfree(hdr);
96682+ module_memfree_exec(hdr);
96683 }
96684 #endif /* CONFIG_BPF_JIT */
96685
96686diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
96687index 536edc2..d28c85d 100644
96688--- a/kernel/bpf/syscall.c
96689+++ b/kernel/bpf/syscall.c
96690@@ -548,11 +548,15 @@ SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, siz
96691 int err;
96692
96693 /* the syscall is limited to root temporarily. This restriction will be
96694- * lifted when security audit is clean. Note that eBPF+tracing must have
96695- * this restriction, since it may pass kernel data to user space
96696+ * lifted by upstream when a half-assed security audit is clean. Note
96697+ * that eBPF+tracing must have this restriction, since it may pass
96698+ * kernel data to user space
96699 */
96700 if (!capable(CAP_SYS_ADMIN))
96701 return -EPERM;
96702+#ifdef CONFIG_GRKERNSEC
96703+ return -EPERM;
96704+#endif
96705
96706 if (!access_ok(VERIFY_READ, uattr, 1))
96707 return -EFAULT;
96708diff --git a/kernel/capability.c b/kernel/capability.c
96709index 989f5bf..d317ca0 100644
96710--- a/kernel/capability.c
96711+++ b/kernel/capability.c
96712@@ -192,6 +192,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
96713 * before modification is attempted and the application
96714 * fails.
96715 */
96716+ if (tocopy > ARRAY_SIZE(kdata))
96717+ return -EFAULT;
96718+
96719 if (copy_to_user(dataptr, kdata, tocopy
96720 * sizeof(struct __user_cap_data_struct))) {
96721 return -EFAULT;
96722@@ -297,10 +300,11 @@ bool has_ns_capability(struct task_struct *t,
96723 int ret;
96724
96725 rcu_read_lock();
96726- ret = security_capable(__task_cred(t), ns, cap);
96727+ ret = security_capable(__task_cred(t), ns, cap) == 0 &&
96728+ gr_task_is_capable(t, __task_cred(t), cap);
96729 rcu_read_unlock();
96730
96731- return (ret == 0);
96732+ return ret;
96733 }
96734
96735 /**
96736@@ -337,10 +341,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
96737 int ret;
96738
96739 rcu_read_lock();
96740- ret = security_capable_noaudit(__task_cred(t), ns, cap);
96741+ ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
96742 rcu_read_unlock();
96743
96744- return (ret == 0);
96745+ return ret;
96746 }
96747
96748 /**
96749@@ -378,7 +382,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
96750 BUG();
96751 }
96752
96753- if (security_capable(current_cred(), ns, cap) == 0) {
96754+ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
96755 current->flags |= PF_SUPERPRIV;
96756 return true;
96757 }
96758@@ -386,6 +390,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
96759 }
96760 EXPORT_SYMBOL(ns_capable);
96761
96762+bool ns_capable_nolog(struct user_namespace *ns, int cap)
96763+{
96764+ if (unlikely(!cap_valid(cap))) {
96765+ printk(KERN_CRIT "capable_nolog() called with invalid cap=%u\n", cap);
96766+ BUG();
96767+ }
96768+
96769+ if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
96770+ current->flags |= PF_SUPERPRIV;
96771+ return true;
96772+ }
96773+ return false;
96774+}
96775+EXPORT_SYMBOL(ns_capable_nolog);
96776+
96777 /**
96778 * file_ns_capable - Determine if the file's opener had a capability in effect
96779 * @file: The file we want to check
96780@@ -427,6 +446,12 @@ bool capable(int cap)
96781 }
96782 EXPORT_SYMBOL(capable);
96783
96784+bool capable_nolog(int cap)
96785+{
96786+ return ns_capable_nolog(&init_user_ns, cap);
96787+}
96788+EXPORT_SYMBOL(capable_nolog);
96789+
96790 /**
96791 * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
96792 * @inode: The inode in question
96793@@ -444,3 +469,12 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
96794 kgid_has_mapping(ns, inode->i_gid);
96795 }
96796 EXPORT_SYMBOL(capable_wrt_inode_uidgid);
96797+
96798+bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap)
96799+{
96800+ struct user_namespace *ns = current_user_ns();
96801+
96802+ return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
96803+ kgid_has_mapping(ns, inode->i_gid);
96804+}
96805+EXPORT_SYMBOL(capable_wrt_inode_uidgid_nolog);
96806diff --git a/kernel/cgroup.c b/kernel/cgroup.c
96807index 29a7b2c..a64e30a 100644
96808--- a/kernel/cgroup.c
96809+++ b/kernel/cgroup.c
96810@@ -5347,6 +5347,9 @@ static void cgroup_release_agent(struct work_struct *work)
96811 if (!pathbuf || !agentbuf)
96812 goto out;
96813
96814+ if (agentbuf[0] == '\0')
96815+ goto out;
96816+
96817 path = cgroup_path(cgrp, pathbuf, PATH_MAX);
96818 if (!path)
96819 goto out;
96820@@ -5532,7 +5535,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
96821 struct task_struct *task;
96822 int count = 0;
96823
96824- seq_printf(seq, "css_set %p\n", cset);
96825+ seq_printf(seq, "css_set %pK\n", cset);
96826
96827 list_for_each_entry(task, &cset->tasks, cg_list) {
96828 if (count++ > MAX_TASKS_SHOWN_PER_CSS)
96829diff --git a/kernel/compat.c b/kernel/compat.c
96830index 24f0061..ea80802 100644
96831--- a/kernel/compat.c
96832+++ b/kernel/compat.c
96833@@ -13,6 +13,7 @@
96834
96835 #include <linux/linkage.h>
96836 #include <linux/compat.h>
96837+#include <linux/module.h>
96838 #include <linux/errno.h>
96839 #include <linux/time.h>
96840 #include <linux/signal.h>
96841@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
96842 mm_segment_t oldfs;
96843 long ret;
96844
96845- restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
96846+ restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
96847 oldfs = get_fs();
96848 set_fs(KERNEL_DS);
96849 ret = hrtimer_nanosleep_restart(restart);
96850@@ -252,7 +253,7 @@ COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
96851 oldfs = get_fs();
96852 set_fs(KERNEL_DS);
96853 ret = hrtimer_nanosleep(&tu,
96854- rmtp ? (struct timespec __user *)&rmt : NULL,
96855+ rmtp ? (struct timespec __force_user *)&rmt : NULL,
96856 HRTIMER_MODE_REL, CLOCK_MONOTONIC);
96857 set_fs(oldfs);
96858
96859@@ -378,7 +379,7 @@ COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set)
96860 mm_segment_t old_fs = get_fs();
96861
96862 set_fs(KERNEL_DS);
96863- ret = sys_sigpending((old_sigset_t __user *) &s);
96864+ ret = sys_sigpending((old_sigset_t __force_user *) &s);
96865 set_fs(old_fs);
96866 if (ret == 0)
96867 ret = put_user(s, set);
96868@@ -468,7 +469,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
96869 mm_segment_t old_fs = get_fs();
96870
96871 set_fs(KERNEL_DS);
96872- ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r);
96873+ ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
96874 set_fs(old_fs);
96875
96876 if (!ret) {
96877@@ -550,8 +551,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
96878 set_fs (KERNEL_DS);
96879 ret = sys_wait4(pid,
96880 (stat_addr ?
96881- (unsigned int __user *) &status : NULL),
96882- options, (struct rusage __user *) &r);
96883+ (unsigned int __force_user *) &status : NULL),
96884+ options, (struct rusage __force_user *) &r);
96885 set_fs (old_fs);
96886
96887 if (ret > 0) {
96888@@ -577,8 +578,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
96889 memset(&info, 0, sizeof(info));
96890
96891 set_fs(KERNEL_DS);
96892- ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
96893- uru ? (struct rusage __user *)&ru : NULL);
96894+ ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
96895+ uru ? (struct rusage __force_user *)&ru : NULL);
96896 set_fs(old_fs);
96897
96898 if ((ret < 0) || (info.si_signo == 0))
96899@@ -712,8 +713,8 @@ COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
96900 oldfs = get_fs();
96901 set_fs(KERNEL_DS);
96902 err = sys_timer_settime(timer_id, flags,
96903- (struct itimerspec __user *) &newts,
96904- (struct itimerspec __user *) &oldts);
96905+ (struct itimerspec __force_user *) &newts,
96906+ (struct itimerspec __force_user *) &oldts);
96907 set_fs(oldfs);
96908 if (!err && old && put_compat_itimerspec(old, &oldts))
96909 return -EFAULT;
96910@@ -730,7 +731,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
96911 oldfs = get_fs();
96912 set_fs(KERNEL_DS);
96913 err = sys_timer_gettime(timer_id,
96914- (struct itimerspec __user *) &ts);
96915+ (struct itimerspec __force_user *) &ts);
96916 set_fs(oldfs);
96917 if (!err && put_compat_itimerspec(setting, &ts))
96918 return -EFAULT;
96919@@ -749,7 +750,7 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
96920 oldfs = get_fs();
96921 set_fs(KERNEL_DS);
96922 err = sys_clock_settime(which_clock,
96923- (struct timespec __user *) &ts);
96924+ (struct timespec __force_user *) &ts);
96925 set_fs(oldfs);
96926 return err;
96927 }
96928@@ -764,7 +765,7 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
96929 oldfs = get_fs();
96930 set_fs(KERNEL_DS);
96931 err = sys_clock_gettime(which_clock,
96932- (struct timespec __user *) &ts);
96933+ (struct timespec __force_user *) &ts);
96934 set_fs(oldfs);
96935 if (!err && compat_put_timespec(&ts, tp))
96936 return -EFAULT;
96937@@ -784,7 +785,7 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
96938
96939 oldfs = get_fs();
96940 set_fs(KERNEL_DS);
96941- ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
96942+ ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
96943 set_fs(oldfs);
96944
96945 err = compat_put_timex(utp, &txc);
96946@@ -804,7 +805,7 @@ COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
96947 oldfs = get_fs();
96948 set_fs(KERNEL_DS);
96949 err = sys_clock_getres(which_clock,
96950- (struct timespec __user *) &ts);
96951+ (struct timespec __force_user *) &ts);
96952 set_fs(oldfs);
96953 if (!err && tp && compat_put_timespec(&ts, tp))
96954 return -EFAULT;
96955@@ -818,7 +819,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
96956 struct timespec tu;
96957 struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
96958
96959- restart->nanosleep.rmtp = (struct timespec __user *) &tu;
96960+ restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
96961 oldfs = get_fs();
96962 set_fs(KERNEL_DS);
96963 err = clock_nanosleep_restart(restart);
96964@@ -850,8 +851,8 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
96965 oldfs = get_fs();
96966 set_fs(KERNEL_DS);
96967 err = sys_clock_nanosleep(which_clock, flags,
96968- (struct timespec __user *) &in,
96969- (struct timespec __user *) &out);
96970+ (struct timespec __force_user *) &in,
96971+ (struct timespec __force_user *) &out);
96972 set_fs(oldfs);
96973
96974 if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
96975@@ -1145,7 +1146,7 @@ COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
96976 mm_segment_t old_fs = get_fs();
96977
96978 set_fs(KERNEL_DS);
96979- ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
96980+ ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
96981 set_fs(old_fs);
96982 if (compat_put_timespec(&t, interval))
96983 return -EFAULT;
96984diff --git a/kernel/configs.c b/kernel/configs.c
96985index c18b1f1..b9a0132 100644
96986--- a/kernel/configs.c
96987+++ b/kernel/configs.c
96988@@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
96989 struct proc_dir_entry *entry;
96990
96991 /* create the current config file */
96992+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
96993+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
96994+ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
96995+ &ikconfig_file_ops);
96996+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
96997+ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
96998+ &ikconfig_file_ops);
96999+#endif
97000+#else
97001 entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
97002 &ikconfig_file_ops);
97003+#endif
97004+
97005 if (!entry)
97006 return -ENOMEM;
97007
97008diff --git a/kernel/cred.c b/kernel/cred.c
97009index e0573a4..26c0fd3 100644
97010--- a/kernel/cred.c
97011+++ b/kernel/cred.c
97012@@ -164,6 +164,16 @@ void exit_creds(struct task_struct *tsk)
97013 validate_creds(cred);
97014 alter_cred_subscribers(cred, -1);
97015 put_cred(cred);
97016+
97017+#ifdef CONFIG_GRKERNSEC_SETXID
97018+ cred = (struct cred *) tsk->delayed_cred;
97019+ if (cred != NULL) {
97020+ tsk->delayed_cred = NULL;
97021+ validate_creds(cred);
97022+ alter_cred_subscribers(cred, -1);
97023+ put_cred(cred);
97024+ }
97025+#endif
97026 }
97027
97028 /**
97029@@ -411,7 +421,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
97030 * Always returns 0 thus allowing this function to be tail-called at the end
97031 * of, say, sys_setgid().
97032 */
97033-int commit_creds(struct cred *new)
97034+static int __commit_creds(struct cred *new)
97035 {
97036 struct task_struct *task = current;
97037 const struct cred *old = task->real_cred;
97038@@ -430,6 +440,8 @@ int commit_creds(struct cred *new)
97039
97040 get_cred(new); /* we will require a ref for the subj creds too */
97041
97042+ gr_set_role_label(task, new->uid, new->gid);
97043+
97044 /* dumpability changes */
97045 if (!uid_eq(old->euid, new->euid) ||
97046 !gid_eq(old->egid, new->egid) ||
97047@@ -479,6 +491,105 @@ int commit_creds(struct cred *new)
97048 put_cred(old);
97049 return 0;
97050 }
97051+#ifdef CONFIG_GRKERNSEC_SETXID
97052+extern int set_user(struct cred *new);
97053+
97054+void gr_delayed_cred_worker(void)
97055+{
97056+ const struct cred *new = current->delayed_cred;
97057+ struct cred *ncred;
97058+
97059+ current->delayed_cred = NULL;
97060+
97061+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
97062+ // from doing get_cred on it when queueing this
97063+ put_cred(new);
97064+ return;
97065+ } else if (new == NULL)
97066+ return;
97067+
97068+ ncred = prepare_creds();
97069+ if (!ncred)
97070+ goto die;
97071+ // uids
97072+ ncred->uid = new->uid;
97073+ ncred->euid = new->euid;
97074+ ncred->suid = new->suid;
97075+ ncred->fsuid = new->fsuid;
97076+ // gids
97077+ ncred->gid = new->gid;
97078+ ncred->egid = new->egid;
97079+ ncred->sgid = new->sgid;
97080+ ncred->fsgid = new->fsgid;
97081+ // groups
97082+ set_groups(ncred, new->group_info);
97083+ // caps
97084+ ncred->securebits = new->securebits;
97085+ ncred->cap_inheritable = new->cap_inheritable;
97086+ ncred->cap_permitted = new->cap_permitted;
97087+ ncred->cap_effective = new->cap_effective;
97088+ ncred->cap_bset = new->cap_bset;
97089+
97090+ if (set_user(ncred)) {
97091+ abort_creds(ncred);
97092+ goto die;
97093+ }
97094+
97095+ // from doing get_cred on it when queueing this
97096+ put_cred(new);
97097+
97098+ __commit_creds(ncred);
97099+ return;
97100+die:
97101+ // from doing get_cred on it when queueing this
97102+ put_cred(new);
97103+ do_group_exit(SIGKILL);
97104+}
97105+#endif
97106+
97107+int commit_creds(struct cred *new)
97108+{
97109+#ifdef CONFIG_GRKERNSEC_SETXID
97110+ int ret;
97111+ int schedule_it = 0;
97112+ struct task_struct *t;
97113+ unsigned oldsecurebits = current_cred()->securebits;
97114+
97115+ /* we won't get called with tasklist_lock held for writing
97116+ and interrupts disabled as the cred struct in that case is
97117+ init_cred
97118+ */
97119+ if (grsec_enable_setxid && !current_is_single_threaded() &&
97120+ uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
97121+ !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
97122+ schedule_it = 1;
97123+ }
97124+ ret = __commit_creds(new);
97125+ if (schedule_it) {
97126+ rcu_read_lock();
97127+ read_lock(&tasklist_lock);
97128+ for (t = next_thread(current); t != current;
97129+ t = next_thread(t)) {
97130+ /* we'll check if the thread has uid 0 in
97131+ * the delayed worker routine
97132+ */
97133+ if (task_securebits(t) == oldsecurebits &&
97134+ t->delayed_cred == NULL) {
97135+ t->delayed_cred = get_cred(new);
97136+ set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
97137+ set_tsk_need_resched(t);
97138+ }
97139+ }
97140+ read_unlock(&tasklist_lock);
97141+ rcu_read_unlock();
97142+ }
97143+
97144+ return ret;
97145+#else
97146+ return __commit_creds(new);
97147+#endif
97148+}
97149+
97150 EXPORT_SYMBOL(commit_creds);
97151
97152 /**
97153diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
97154index 0874e2e..5b32cc9 100644
97155--- a/kernel/debug/debug_core.c
97156+++ b/kernel/debug/debug_core.c
97157@@ -127,7 +127,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
97158 */
97159 static atomic_t masters_in_kgdb;
97160 static atomic_t slaves_in_kgdb;
97161-static atomic_t kgdb_break_tasklet_var;
97162+static atomic_unchecked_t kgdb_break_tasklet_var;
97163 atomic_t kgdb_setting_breakpoint;
97164
97165 struct task_struct *kgdb_usethread;
97166@@ -137,7 +137,7 @@ int kgdb_single_step;
97167 static pid_t kgdb_sstep_pid;
97168
97169 /* to keep track of the CPU which is doing the single stepping*/
97170-atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
97171+atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
97172
97173 /*
97174 * If you are debugging a problem where roundup (the collection of
97175@@ -552,7 +552,7 @@ return_normal:
97176 * kernel will only try for the value of sstep_tries before
97177 * giving up and continuing on.
97178 */
97179- if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
97180+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
97181 (kgdb_info[cpu].task &&
97182 kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
97183 atomic_set(&kgdb_active, -1);
97184@@ -654,8 +654,8 @@ cpu_master_loop:
97185 }
97186
97187 kgdb_restore:
97188- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
97189- int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
97190+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
97191+ int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
97192 if (kgdb_info[sstep_cpu].task)
97193 kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
97194 else
97195@@ -949,18 +949,18 @@ static void kgdb_unregister_callbacks(void)
97196 static void kgdb_tasklet_bpt(unsigned long ing)
97197 {
97198 kgdb_breakpoint();
97199- atomic_set(&kgdb_break_tasklet_var, 0);
97200+ atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
97201 }
97202
97203 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
97204
97205 void kgdb_schedule_breakpoint(void)
97206 {
97207- if (atomic_read(&kgdb_break_tasklet_var) ||
97208+ if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
97209 atomic_read(&kgdb_active) != -1 ||
97210 atomic_read(&kgdb_setting_breakpoint))
97211 return;
97212- atomic_inc(&kgdb_break_tasklet_var);
97213+ atomic_inc_unchecked(&kgdb_break_tasklet_var);
97214 tasklet_schedule(&kgdb_tasklet_breakpoint);
97215 }
97216 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
97217diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
97218index 41213454..861e178 100644
97219--- a/kernel/debug/kdb/kdb_main.c
97220+++ b/kernel/debug/kdb/kdb_main.c
97221@@ -2021,7 +2021,7 @@ static int kdb_lsmod(int argc, const char **argv)
97222 continue;
97223
97224 kdb_printf("%-20s%8u 0x%p ", mod->name,
97225- mod->core_size, (void *)mod);
97226+ mod->core_size_rx + mod->core_size_rw, (void *)mod);
97227 #ifdef CONFIG_MODULE_UNLOAD
97228 kdb_printf("%4d ", module_refcount(mod));
97229 #endif
97230@@ -2031,7 +2031,7 @@ static int kdb_lsmod(int argc, const char **argv)
97231 kdb_printf(" (Loading)");
97232 else
97233 kdb_printf(" (Live)");
97234- kdb_printf(" 0x%p", mod->module_core);
97235+ kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
97236
97237 #ifdef CONFIG_MODULE_UNLOAD
97238 {
97239diff --git a/kernel/events/core.c b/kernel/events/core.c
97240index 2fabc06..79cceec 100644
97241--- a/kernel/events/core.c
97242+++ b/kernel/events/core.c
97243@@ -170,8 +170,15 @@ static struct srcu_struct pmus_srcu;
97244 * 0 - disallow raw tracepoint access for unpriv
97245 * 1 - disallow cpu events for unpriv
97246 * 2 - disallow kernel profiling for unpriv
97247+ * 3 - disallow all unpriv perf event use
97248 */
97249-int sysctl_perf_event_paranoid __read_mostly = 1;
97250+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
97251+int sysctl_perf_event_legitimately_concerned __read_mostly = 3;
97252+#elif defined(CONFIG_GRKERNSEC_HIDESYM)
97253+int sysctl_perf_event_legitimately_concerned __read_mostly = 2;
97254+#else
97255+int sysctl_perf_event_legitimately_concerned __read_mostly = 1;
97256+#endif
97257
97258 /* Minimum for 512 kiB + 1 user control page */
97259 int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
97260@@ -197,7 +204,7 @@ void update_perf_cpu_limits(void)
97261
97262 tmp *= sysctl_perf_cpu_time_max_percent;
97263 do_div(tmp, 100);
97264- ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
97265+ ACCESS_ONCE_RW(perf_sample_allowed_ns) = tmp;
97266 }
97267
97268 static int perf_rotate_context(struct perf_cpu_context *cpuctx);
97269@@ -303,7 +310,7 @@ void perf_sample_event_took(u64 sample_len_ns)
97270 }
97271 }
97272
97273-static atomic64_t perf_event_id;
97274+static atomic64_unchecked_t perf_event_id;
97275
97276 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
97277 enum event_type_t event_type);
97278@@ -3220,7 +3227,7 @@ static void __perf_event_read(void *info)
97279
97280 static inline u64 perf_event_count(struct perf_event *event)
97281 {
97282- return local64_read(&event->count) + atomic64_read(&event->child_count);
97283+ return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
97284 }
97285
97286 static u64 perf_event_read(struct perf_event *event)
97287@@ -3656,9 +3663,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
97288 mutex_lock(&event->child_mutex);
97289 total += perf_event_read(event);
97290 *enabled += event->total_time_enabled +
97291- atomic64_read(&event->child_total_time_enabled);
97292+ atomic64_read_unchecked(&event->child_total_time_enabled);
97293 *running += event->total_time_running +
97294- atomic64_read(&event->child_total_time_running);
97295+ atomic64_read_unchecked(&event->child_total_time_running);
97296
97297 list_for_each_entry(child, &event->child_list, child_list) {
97298 total += perf_event_read(child);
97299@@ -4147,10 +4154,10 @@ void perf_event_update_userpage(struct perf_event *event)
97300 userpg->offset -= local64_read(&event->hw.prev_count);
97301
97302 userpg->time_enabled = enabled +
97303- atomic64_read(&event->child_total_time_enabled);
97304+ atomic64_read_unchecked(&event->child_total_time_enabled);
97305
97306 userpg->time_running = running +
97307- atomic64_read(&event->child_total_time_running);
97308+ atomic64_read_unchecked(&event->child_total_time_running);
97309
97310 arch_perf_update_userpage(event, userpg, now);
97311
97312@@ -4740,7 +4747,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
97313
97314 /* Data. */
97315 sp = perf_user_stack_pointer(regs);
97316- rem = __output_copy_user(handle, (void *) sp, dump_size);
97317+ rem = __output_copy_user(handle, (void __user *) sp, dump_size);
97318 dyn_size = dump_size - rem;
97319
97320 perf_output_skip(handle, rem);
97321@@ -4831,11 +4838,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
97322 values[n++] = perf_event_count(event);
97323 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
97324 values[n++] = enabled +
97325- atomic64_read(&event->child_total_time_enabled);
97326+ atomic64_read_unchecked(&event->child_total_time_enabled);
97327 }
97328 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
97329 values[n++] = running +
97330- atomic64_read(&event->child_total_time_running);
97331+ atomic64_read_unchecked(&event->child_total_time_running);
97332 }
97333 if (read_format & PERF_FORMAT_ID)
97334 values[n++] = primary_event_id(event);
97335@@ -7180,7 +7187,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
97336 event->parent = parent_event;
97337
97338 event->ns = get_pid_ns(task_active_pid_ns(current));
97339- event->id = atomic64_inc_return(&perf_event_id);
97340+ event->id = atomic64_inc_return_unchecked(&perf_event_id);
97341
97342 event->state = PERF_EVENT_STATE_INACTIVE;
97343
97344@@ -7470,6 +7477,11 @@ SYSCALL_DEFINE5(perf_event_open,
97345 if (flags & ~PERF_FLAG_ALL)
97346 return -EINVAL;
97347
97348+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
97349+ if (perf_paranoid_any() && !capable(CAP_SYS_ADMIN))
97350+ return -EACCES;
97351+#endif
97352+
97353 err = perf_copy_attr(attr_uptr, &attr);
97354 if (err)
97355 return err;
97356@@ -7892,10 +7904,10 @@ static void sync_child_event(struct perf_event *child_event,
97357 /*
97358 * Add back the child's count to the parent's count:
97359 */
97360- atomic64_add(child_val, &parent_event->child_count);
97361- atomic64_add(child_event->total_time_enabled,
97362+ atomic64_add_unchecked(child_val, &parent_event->child_count);
97363+ atomic64_add_unchecked(child_event->total_time_enabled,
97364 &parent_event->child_total_time_enabled);
97365- atomic64_add(child_event->total_time_running,
97366+ atomic64_add_unchecked(child_event->total_time_running,
97367 &parent_event->child_total_time_running);
97368
97369 /*
97370diff --git a/kernel/events/internal.h b/kernel/events/internal.h
97371index 569b2187..19940d9 100644
97372--- a/kernel/events/internal.h
97373+++ b/kernel/events/internal.h
97374@@ -81,10 +81,10 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
97375 return rb->nr_pages << (PAGE_SHIFT + page_order(rb));
97376 }
97377
97378-#define DEFINE_OUTPUT_COPY(func_name, memcpy_func) \
97379+#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user) \
97380 static inline unsigned long \
97381 func_name(struct perf_output_handle *handle, \
97382- const void *buf, unsigned long len) \
97383+ const void user *buf, unsigned long len) \
97384 { \
97385 unsigned long size, written; \
97386 \
97387@@ -117,7 +117,7 @@ memcpy_common(void *dst, const void *src, unsigned long n)
97388 return 0;
97389 }
97390
97391-DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
97392+DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
97393
97394 static inline unsigned long
97395 memcpy_skip(void *dst, const void *src, unsigned long n)
97396@@ -125,7 +125,7 @@ memcpy_skip(void *dst, const void *src, unsigned long n)
97397 return 0;
97398 }
97399
97400-DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
97401+DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip, )
97402
97403 #ifndef arch_perf_out_copy_user
97404 #define arch_perf_out_copy_user arch_perf_out_copy_user
97405@@ -143,7 +143,7 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
97406 }
97407 #endif
97408
97409-DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
97410+DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
97411
97412 /* Callchain handling */
97413 extern struct perf_callchain_entry *
97414diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
97415index cb346f2..e4dc317 100644
97416--- a/kernel/events/uprobes.c
97417+++ b/kernel/events/uprobes.c
97418@@ -1670,7 +1670,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr)
97419 {
97420 struct page *page;
97421 uprobe_opcode_t opcode;
97422- int result;
97423+ long result;
97424
97425 pagefault_disable();
97426 result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
97427diff --git a/kernel/exit.c b/kernel/exit.c
97428index feff10b..f623dd5 100644
97429--- a/kernel/exit.c
97430+++ b/kernel/exit.c
97431@@ -171,6 +171,10 @@ void release_task(struct task_struct *p)
97432 struct task_struct *leader;
97433 int zap_leader;
97434 repeat:
97435+#ifdef CONFIG_NET
97436+ gr_del_task_from_ip_table(p);
97437+#endif
97438+
97439 /* don't need to get the RCU readlock here - the process is dead and
97440 * can't be modifying its own credentials. But shut RCU-lockdep up */
97441 rcu_read_lock();
97442@@ -656,6 +660,8 @@ void do_exit(long code)
97443 int group_dead;
97444 TASKS_RCU(int tasks_rcu_i);
97445
97446+ set_fs(USER_DS);
97447+
97448 profile_task_exit(tsk);
97449
97450 WARN_ON(blk_needs_flush_plug(tsk));
97451@@ -672,7 +678,6 @@ void do_exit(long code)
97452 * mm_release()->clear_child_tid() from writing to a user-controlled
97453 * kernel address.
97454 */
97455- set_fs(USER_DS);
97456
97457 ptrace_event(PTRACE_EVENT_EXIT, code);
97458
97459@@ -730,6 +735,9 @@ void do_exit(long code)
97460 tsk->exit_code = code;
97461 taskstats_exit(tsk, group_dead);
97462
97463+ gr_acl_handle_psacct(tsk, code);
97464+ gr_acl_handle_exit();
97465+
97466 exit_mm(tsk);
97467
97468 if (group_dead)
97469@@ -849,7 +857,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
97470 * Take down every thread in the group. This is called by fatal signals
97471 * as well as by sys_exit_group (below).
97472 */
97473-void
97474+__noreturn void
97475 do_group_exit(int exit_code)
97476 {
97477 struct signal_struct *sig = current->signal;
97478diff --git a/kernel/fork.c b/kernel/fork.c
97479index cf65139..704476e 100644
97480--- a/kernel/fork.c
97481+++ b/kernel/fork.c
97482@@ -177,12 +177,54 @@ static void free_thread_info(struct thread_info *ti)
97483 void thread_info_cache_init(void)
97484 {
97485 thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
97486- THREAD_SIZE, 0, NULL);
97487+ THREAD_SIZE, SLAB_USERCOPY, NULL);
97488 BUG_ON(thread_info_cache == NULL);
97489 }
97490 # endif
97491 #endif
97492
97493+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97494+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
97495+ int node, void **lowmem_stack)
97496+{
97497+ struct page *pages[THREAD_SIZE / PAGE_SIZE];
97498+ void *ret = NULL;
97499+ unsigned int i;
97500+
97501+ *lowmem_stack = alloc_thread_info_node(tsk, node);
97502+ if (*lowmem_stack == NULL)
97503+ goto out;
97504+
97505+ for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
97506+ pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
97507+
97508+ /* use VM_IOREMAP to gain THREAD_SIZE alignment */
97509+ ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
97510+ if (ret == NULL) {
97511+ free_thread_info(*lowmem_stack);
97512+ *lowmem_stack = NULL;
97513+ }
97514+
97515+out:
97516+ return ret;
97517+}
97518+
97519+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
97520+{
97521+ unmap_process_stacks(tsk);
97522+}
97523+#else
97524+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
97525+ int node, void **lowmem_stack)
97526+{
97527+ return alloc_thread_info_node(tsk, node);
97528+}
97529+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
97530+{
97531+ free_thread_info(ti);
97532+}
97533+#endif
97534+
97535 /* SLAB cache for signal_struct structures (tsk->signal) */
97536 static struct kmem_cache *signal_cachep;
97537
97538@@ -201,18 +243,22 @@ struct kmem_cache *vm_area_cachep;
97539 /* SLAB cache for mm_struct structures (tsk->mm) */
97540 static struct kmem_cache *mm_cachep;
97541
97542-static void account_kernel_stack(struct thread_info *ti, int account)
97543+static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
97544 {
97545+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97546+ struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
97547+#else
97548 struct zone *zone = page_zone(virt_to_page(ti));
97549+#endif
97550
97551 mod_zone_page_state(zone, NR_KERNEL_STACK, account);
97552 }
97553
97554 void free_task(struct task_struct *tsk)
97555 {
97556- account_kernel_stack(tsk->stack, -1);
97557+ account_kernel_stack(tsk, tsk->stack, -1);
97558 arch_release_thread_info(tsk->stack);
97559- free_thread_info(tsk->stack);
97560+ gr_free_thread_info(tsk, tsk->stack);
97561 rt_mutex_debug_task_free(tsk);
97562 ftrace_graph_exit_task(tsk);
97563 put_seccomp_filter(tsk);
97564@@ -306,6 +352,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97565 {
97566 struct task_struct *tsk;
97567 struct thread_info *ti;
97568+ void *lowmem_stack;
97569 int node = tsk_fork_get_node(orig);
97570 int err;
97571
97572@@ -313,7 +360,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97573 if (!tsk)
97574 return NULL;
97575
97576- ti = alloc_thread_info_node(tsk, node);
97577+ ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
97578 if (!ti)
97579 goto free_tsk;
97580
97581@@ -322,6 +369,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97582 goto free_ti;
97583
97584 tsk->stack = ti;
97585+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97586+ tsk->lowmem_stack = lowmem_stack;
97587+#endif
97588 #ifdef CONFIG_SECCOMP
97589 /*
97590 * We must handle setting up seccomp filters once we're under
97591@@ -338,7 +388,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97592 set_task_stack_end_magic(tsk);
97593
97594 #ifdef CONFIG_CC_STACKPROTECTOR
97595- tsk->stack_canary = get_random_int();
97596+ tsk->stack_canary = pax_get_random_long();
97597 #endif
97598
97599 /*
97600@@ -352,24 +402,89 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97601 tsk->splice_pipe = NULL;
97602 tsk->task_frag.page = NULL;
97603
97604- account_kernel_stack(ti, 1);
97605+ account_kernel_stack(tsk, ti, 1);
97606
97607 return tsk;
97608
97609 free_ti:
97610- free_thread_info(ti);
97611+ gr_free_thread_info(tsk, ti);
97612 free_tsk:
97613 free_task_struct(tsk);
97614 return NULL;
97615 }
97616
97617 #ifdef CONFIG_MMU
97618-static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97619+static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
97620+{
97621+ struct vm_area_struct *tmp;
97622+ unsigned long charge;
97623+ struct file *file;
97624+ int retval;
97625+
97626+ charge = 0;
97627+ if (mpnt->vm_flags & VM_ACCOUNT) {
97628+ unsigned long len = vma_pages(mpnt);
97629+
97630+ if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
97631+ goto fail_nomem;
97632+ charge = len;
97633+ }
97634+ tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
97635+ if (!tmp)
97636+ goto fail_nomem;
97637+ *tmp = *mpnt;
97638+ tmp->vm_mm = mm;
97639+ INIT_LIST_HEAD(&tmp->anon_vma_chain);
97640+ retval = vma_dup_policy(mpnt, tmp);
97641+ if (retval)
97642+ goto fail_nomem_policy;
97643+ if (anon_vma_fork(tmp, mpnt))
97644+ goto fail_nomem_anon_vma_fork;
97645+ tmp->vm_flags &= ~VM_LOCKED;
97646+ tmp->vm_next = tmp->vm_prev = NULL;
97647+ tmp->vm_mirror = NULL;
97648+ file = tmp->vm_file;
97649+ if (file) {
97650+ struct inode *inode = file_inode(file);
97651+ struct address_space *mapping = file->f_mapping;
97652+
97653+ get_file(file);
97654+ if (tmp->vm_flags & VM_DENYWRITE)
97655+ atomic_dec(&inode->i_writecount);
97656+ i_mmap_lock_write(mapping);
97657+ if (tmp->vm_flags & VM_SHARED)
97658+ atomic_inc(&mapping->i_mmap_writable);
97659+ flush_dcache_mmap_lock(mapping);
97660+ /* insert tmp into the share list, just after mpnt */
97661+ vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
97662+ flush_dcache_mmap_unlock(mapping);
97663+ i_mmap_unlock_write(mapping);
97664+ }
97665+
97666+ /*
97667+ * Clear hugetlb-related page reserves for children. This only
97668+ * affects MAP_PRIVATE mappings. Faults generated by the child
97669+ * are not guaranteed to succeed, even if read-only
97670+ */
97671+ if (is_vm_hugetlb_page(tmp))
97672+ reset_vma_resv_huge_pages(tmp);
97673+
97674+ return tmp;
97675+
97676+fail_nomem_anon_vma_fork:
97677+ mpol_put(vma_policy(tmp));
97678+fail_nomem_policy:
97679+ kmem_cache_free(vm_area_cachep, tmp);
97680+fail_nomem:
97681+ vm_unacct_memory(charge);
97682+ return NULL;
97683+}
97684+
97685+static __latent_entropy int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97686 {
97687 struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
97688 struct rb_node **rb_link, *rb_parent;
97689 int retval;
97690- unsigned long charge;
97691
97692 uprobe_start_dup_mmap();
97693 down_write(&oldmm->mmap_sem);
97694@@ -397,51 +512,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97695
97696 prev = NULL;
97697 for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
97698- struct file *file;
97699-
97700 if (mpnt->vm_flags & VM_DONTCOPY) {
97701 vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
97702 -vma_pages(mpnt));
97703 continue;
97704 }
97705- charge = 0;
97706- if (mpnt->vm_flags & VM_ACCOUNT) {
97707- unsigned long len = vma_pages(mpnt);
97708-
97709- if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
97710- goto fail_nomem;
97711- charge = len;
97712- }
97713- tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
97714- if (!tmp)
97715- goto fail_nomem;
97716- *tmp = *mpnt;
97717- INIT_LIST_HEAD(&tmp->anon_vma_chain);
97718- retval = vma_dup_policy(mpnt, tmp);
97719- if (retval)
97720- goto fail_nomem_policy;
97721- tmp->vm_mm = mm;
97722- if (anon_vma_fork(tmp, mpnt))
97723- goto fail_nomem_anon_vma_fork;
97724- tmp->vm_flags &= ~VM_LOCKED;
97725- tmp->vm_next = tmp->vm_prev = NULL;
97726- file = tmp->vm_file;
97727- if (file) {
97728- struct inode *inode = file_inode(file);
97729- struct address_space *mapping = file->f_mapping;
97730-
97731- get_file(file);
97732- if (tmp->vm_flags & VM_DENYWRITE)
97733- atomic_dec(&inode->i_writecount);
97734- i_mmap_lock_write(mapping);
97735- if (tmp->vm_flags & VM_SHARED)
97736- atomic_inc(&mapping->i_mmap_writable);
97737- flush_dcache_mmap_lock(mapping);
97738- /* insert tmp into the share list, just after mpnt */
97739- vma_interval_tree_insert_after(tmp, mpnt,
97740- &mapping->i_mmap);
97741- flush_dcache_mmap_unlock(mapping);
97742- i_mmap_unlock_write(mapping);
97743+ tmp = dup_vma(mm, oldmm, mpnt);
97744+ if (!tmp) {
97745+ retval = -ENOMEM;
97746+ goto out;
97747 }
97748
97749 /*
97750@@ -473,6 +552,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97751 if (retval)
97752 goto out;
97753 }
97754+
97755+#ifdef CONFIG_PAX_SEGMEXEC
97756+ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
97757+ struct vm_area_struct *mpnt_m;
97758+
97759+ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
97760+ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
97761+
97762+ if (!mpnt->vm_mirror)
97763+ continue;
97764+
97765+ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
97766+ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
97767+ mpnt->vm_mirror = mpnt_m;
97768+ } else {
97769+ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
97770+ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
97771+ mpnt_m->vm_mirror->vm_mirror = mpnt_m;
97772+ mpnt->vm_mirror->vm_mirror = mpnt;
97773+ }
97774+ }
97775+ BUG_ON(mpnt_m);
97776+ }
97777+#endif
97778+
97779 /* a new mm has just been created */
97780 arch_dup_mmap(oldmm, mm);
97781 retval = 0;
97782@@ -482,14 +586,6 @@ out:
97783 up_write(&oldmm->mmap_sem);
97784 uprobe_end_dup_mmap();
97785 return retval;
97786-fail_nomem_anon_vma_fork:
97787- mpol_put(vma_policy(tmp));
97788-fail_nomem_policy:
97789- kmem_cache_free(vm_area_cachep, tmp);
97790-fail_nomem:
97791- retval = -ENOMEM;
97792- vm_unacct_memory(charge);
97793- goto out;
97794 }
97795
97796 static inline int mm_alloc_pgd(struct mm_struct *mm)
97797@@ -739,8 +835,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
97798 return ERR_PTR(err);
97799
97800 mm = get_task_mm(task);
97801- if (mm && mm != current->mm &&
97802- !ptrace_may_access(task, mode)) {
97803+ if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
97804+ (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
97805 mmput(mm);
97806 mm = ERR_PTR(-EACCES);
97807 }
97808@@ -943,13 +1039,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
97809 spin_unlock(&fs->lock);
97810 return -EAGAIN;
97811 }
97812- fs->users++;
97813+ atomic_inc(&fs->users);
97814 spin_unlock(&fs->lock);
97815 return 0;
97816 }
97817 tsk->fs = copy_fs_struct(fs);
97818 if (!tsk->fs)
97819 return -ENOMEM;
97820+ /* Carry through gr_chroot_dentry and is_chrooted instead
97821+ of recomputing it here. Already copied when the task struct
97822+ is duplicated. This allows pivot_root to not be treated as
97823+ a chroot
97824+ */
97825+ //gr_set_chroot_entries(tsk, &tsk->fs->root);
97826+
97827 return 0;
97828 }
97829
97830@@ -1187,7 +1290,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
97831 * parts of the process environment (as per the clone
97832 * flags). The actual kick-off is left to the caller.
97833 */
97834-static struct task_struct *copy_process(unsigned long clone_flags,
97835+static __latent_entropy struct task_struct *copy_process(unsigned long clone_flags,
97836 unsigned long stack_start,
97837 unsigned long stack_size,
97838 int __user *child_tidptr,
97839@@ -1258,6 +1361,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
97840 DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
97841 #endif
97842 retval = -EAGAIN;
97843+
97844+ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
97845+
97846 if (atomic_read(&p->real_cred->user->processes) >=
97847 task_rlimit(p, RLIMIT_NPROC)) {
97848 if (p->real_cred->user != INIT_USER &&
97849@@ -1507,6 +1613,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
97850 goto bad_fork_free_pid;
97851 }
97852
97853+ /* synchronizes with gr_set_acls()
97854+ we need to call this past the point of no return for fork()
97855+ */
97856+ gr_copy_label(p);
97857+
97858 if (likely(p->pid)) {
97859 ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
97860
97861@@ -1597,6 +1708,8 @@ bad_fork_cleanup_count:
97862 bad_fork_free:
97863 free_task(p);
97864 fork_out:
97865+ gr_log_forkfail(retval);
97866+
97867 return ERR_PTR(retval);
97868 }
97869
97870@@ -1658,6 +1771,7 @@ long do_fork(unsigned long clone_flags,
97871
97872 p = copy_process(clone_flags, stack_start, stack_size,
97873 child_tidptr, NULL, trace);
97874+ add_latent_entropy();
97875 /*
97876 * Do this prior waking up the new thread - the thread pointer
97877 * might get invalid after that point, if the thread exits quickly.
97878@@ -1674,6 +1788,8 @@ long do_fork(unsigned long clone_flags,
97879 if (clone_flags & CLONE_PARENT_SETTID)
97880 put_user(nr, parent_tidptr);
97881
97882+ gr_handle_brute_check();
97883+
97884 if (clone_flags & CLONE_VFORK) {
97885 p->vfork_done = &vfork;
97886 init_completion(&vfork);
97887@@ -1792,7 +1908,7 @@ void __init proc_caches_init(void)
97888 mm_cachep = kmem_cache_create("mm_struct",
97889 sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
97890 SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL);
97891- vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC);
97892+ vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC | SLAB_NO_SANITIZE);
97893 mmap_init();
97894 nsproxy_cache_init();
97895 }
97896@@ -1832,7 +1948,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
97897 return 0;
97898
97899 /* don't need lock here; in the worst case we'll do useless copy */
97900- if (fs->users == 1)
97901+ if (atomic_read(&fs->users) == 1)
97902 return 0;
97903
97904 *new_fsp = copy_fs_struct(fs);
97905@@ -1944,7 +2060,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
97906 fs = current->fs;
97907 spin_lock(&fs->lock);
97908 current->fs = new_fs;
97909- if (--fs->users)
97910+ gr_set_chroot_entries(current, &current->fs->root);
97911+ if (atomic_dec_return(&fs->users))
97912 new_fs = NULL;
97913 else
97914 new_fs = fs;
97915diff --git a/kernel/futex.c b/kernel/futex.c
97916index 2a5e383..878bac6 100644
97917--- a/kernel/futex.c
97918+++ b/kernel/futex.c
97919@@ -201,7 +201,7 @@ struct futex_pi_state {
97920 atomic_t refcount;
97921
97922 union futex_key key;
97923-};
97924+} __randomize_layout;
97925
97926 /**
97927 * struct futex_q - The hashed futex queue entry, one per waiting task
97928@@ -235,7 +235,7 @@ struct futex_q {
97929 struct rt_mutex_waiter *rt_waiter;
97930 union futex_key *requeue_pi_key;
97931 u32 bitset;
97932-};
97933+} __randomize_layout;
97934
97935 static const struct futex_q futex_q_init = {
97936 /* list gets initialized in queue_me()*/
97937@@ -402,6 +402,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
97938 struct page *page, *page_head;
97939 int err, ro = 0;
97940
97941+#ifdef CONFIG_PAX_SEGMEXEC
97942+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
97943+ return -EFAULT;
97944+#endif
97945+
97946 /*
97947 * The futex address must be "naturally" aligned.
97948 */
97949@@ -601,7 +606,7 @@ static int cmpxchg_futex_value_locked(u32 *curval, u32 __user *uaddr,
97950
97951 static int get_futex_value_locked(u32 *dest, u32 __user *from)
97952 {
97953- int ret;
97954+ unsigned long ret;
97955
97956 pagefault_disable();
97957 ret = __copy_from_user_inatomic(dest, from, sizeof(u32));
97958@@ -3006,6 +3011,7 @@ static void __init futex_detect_cmpxchg(void)
97959 {
97960 #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
97961 u32 curval;
97962+ mm_segment_t oldfs;
97963
97964 /*
97965 * This will fail and we want it. Some arch implementations do
97966@@ -3017,8 +3023,11 @@ static void __init futex_detect_cmpxchg(void)
97967 * implementation, the non-functional ones will return
97968 * -ENOSYS.
97969 */
97970+ oldfs = get_fs();
97971+ set_fs(USER_DS);
97972 if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
97973 futex_cmpxchg_enabled = 1;
97974+ set_fs(oldfs);
97975 #endif
97976 }
97977
97978diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
97979index 55c8c93..9ba7ad6 100644
97980--- a/kernel/futex_compat.c
97981+++ b/kernel/futex_compat.c
97982@@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
97983 return 0;
97984 }
97985
97986-static void __user *futex_uaddr(struct robust_list __user *entry,
97987+static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
97988 compat_long_t futex_offset)
97989 {
97990 compat_uptr_t base = ptr_to_compat(entry);
97991diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
97992index b358a80..fc25240 100644
97993--- a/kernel/gcov/base.c
97994+++ b/kernel/gcov/base.c
97995@@ -114,11 +114,6 @@ void gcov_enable_events(void)
97996 }
97997
97998 #ifdef CONFIG_MODULES
97999-static inline int within(void *addr, void *start, unsigned long size)
98000-{
98001- return ((addr >= start) && (addr < start + size));
98002-}
98003-
98004 /* Update list and generate events when modules are unloaded. */
98005 static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
98006 void *data)
98007@@ -133,7 +128,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
98008
98009 /* Remove entries located in module from linked list. */
98010 while ((info = gcov_info_next(info))) {
98011- if (within(info, mod->module_core, mod->core_size)) {
98012+ if (within_module_core_rw((unsigned long)info, mod)) {
98013 gcov_info_unlink(prev, info);
98014 if (gcov_events_enabled)
98015 gcov_event(GCOV_REMOVE, info);
98016diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
98017index 886d09e..c7ff4e5 100644
98018--- a/kernel/irq/manage.c
98019+++ b/kernel/irq/manage.c
98020@@ -874,7 +874,7 @@ static int irq_thread(void *data)
98021
98022 action_ret = handler_fn(desc, action);
98023 if (action_ret == IRQ_HANDLED)
98024- atomic_inc(&desc->threads_handled);
98025+ atomic_inc_unchecked(&desc->threads_handled);
98026
98027 wake_threads_waitq(desc);
98028 }
98029diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
98030index e2514b0..de3dfe0 100644
98031--- a/kernel/irq/spurious.c
98032+++ b/kernel/irq/spurious.c
98033@@ -337,7 +337,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
98034 * count. We just care about the count being
98035 * different than the one we saw before.
98036 */
98037- handled = atomic_read(&desc->threads_handled);
98038+ handled = atomic_read_unchecked(&desc->threads_handled);
98039 handled |= SPURIOUS_DEFERRED;
98040 if (handled != desc->threads_handled_last) {
98041 action_ret = IRQ_HANDLED;
98042diff --git a/kernel/jump_label.c b/kernel/jump_label.c
98043index 9019f15..9a3c42e 100644
98044--- a/kernel/jump_label.c
98045+++ b/kernel/jump_label.c
98046@@ -14,6 +14,7 @@
98047 #include <linux/err.h>
98048 #include <linux/static_key.h>
98049 #include <linux/jump_label_ratelimit.h>
98050+#include <linux/mm.h>
98051
98052 #ifdef HAVE_JUMP_LABEL
98053
98054@@ -51,7 +52,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
98055
98056 size = (((unsigned long)stop - (unsigned long)start)
98057 / sizeof(struct jump_entry));
98058+ pax_open_kernel();
98059 sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
98060+ pax_close_kernel();
98061 }
98062
98063 static void jump_label_update(struct static_key *key, int enable);
98064@@ -363,10 +366,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
98065 struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
98066 struct jump_entry *iter;
98067
98068+ pax_open_kernel();
98069 for (iter = iter_start; iter < iter_stop; iter++) {
98070 if (within_module_init(iter->code, mod))
98071 iter->code = 0;
98072 }
98073+ pax_close_kernel();
98074 }
98075
98076 static int
98077diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
98078index 5c5987f..bc502b0 100644
98079--- a/kernel/kallsyms.c
98080+++ b/kernel/kallsyms.c
98081@@ -11,6 +11,9 @@
98082 * Changed the compression method from stem compression to "table lookup"
98083 * compression (see scripts/kallsyms.c for a more complete description)
98084 */
98085+#ifdef CONFIG_GRKERNSEC_HIDESYM
98086+#define __INCLUDED_BY_HIDESYM 1
98087+#endif
98088 #include <linux/kallsyms.h>
98089 #include <linux/module.h>
98090 #include <linux/init.h>
98091@@ -54,12 +57,33 @@ extern const unsigned long kallsyms_markers[] __weak;
98092
98093 static inline int is_kernel_inittext(unsigned long addr)
98094 {
98095+ if (system_state != SYSTEM_BOOTING)
98096+ return 0;
98097+
98098 if (addr >= (unsigned long)_sinittext
98099 && addr <= (unsigned long)_einittext)
98100 return 1;
98101 return 0;
98102 }
98103
98104+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98105+#ifdef CONFIG_MODULES
98106+static inline int is_module_text(unsigned long addr)
98107+{
98108+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
98109+ return 1;
98110+
98111+ addr = ktla_ktva(addr);
98112+ return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
98113+}
98114+#else
98115+static inline int is_module_text(unsigned long addr)
98116+{
98117+ return 0;
98118+}
98119+#endif
98120+#endif
98121+
98122 static inline int is_kernel_text(unsigned long addr)
98123 {
98124 if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
98125@@ -70,13 +94,28 @@ static inline int is_kernel_text(unsigned long addr)
98126
98127 static inline int is_kernel(unsigned long addr)
98128 {
98129+
98130+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98131+ if (is_kernel_text(addr) || is_kernel_inittext(addr))
98132+ return 1;
98133+
98134+ if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
98135+#else
98136 if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
98137+#endif
98138+
98139 return 1;
98140 return in_gate_area_no_mm(addr);
98141 }
98142
98143 static int is_ksym_addr(unsigned long addr)
98144 {
98145+
98146+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98147+ if (is_module_text(addr))
98148+ return 0;
98149+#endif
98150+
98151 if (all_var)
98152 return is_kernel(addr);
98153
98154@@ -481,7 +520,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
98155
98156 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
98157 {
98158- iter->name[0] = '\0';
98159 iter->nameoff = get_symbol_offset(new_pos);
98160 iter->pos = new_pos;
98161 }
98162@@ -529,6 +567,11 @@ static int s_show(struct seq_file *m, void *p)
98163 {
98164 struct kallsym_iter *iter = m->private;
98165
98166+#ifdef CONFIG_GRKERNSEC_HIDESYM
98167+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
98168+ return 0;
98169+#endif
98170+
98171 /* Some debugging symbols have no name. Ignore them. */
98172 if (!iter->name[0])
98173 return 0;
98174@@ -542,6 +585,7 @@ static int s_show(struct seq_file *m, void *p)
98175 */
98176 type = iter->exported ? toupper(iter->type) :
98177 tolower(iter->type);
98178+
98179 seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
98180 type, iter->name, iter->module_name);
98181 } else
98182diff --git a/kernel/kcmp.c b/kernel/kcmp.c
98183index 0aa69ea..a7fcafb 100644
98184--- a/kernel/kcmp.c
98185+++ b/kernel/kcmp.c
98186@@ -100,6 +100,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
98187 struct task_struct *task1, *task2;
98188 int ret;
98189
98190+#ifdef CONFIG_GRKERNSEC
98191+ return -ENOSYS;
98192+#endif
98193+
98194 rcu_read_lock();
98195
98196 /*
98197diff --git a/kernel/kexec.c b/kernel/kexec.c
98198index 38c25b1..12b3f69 100644
98199--- a/kernel/kexec.c
98200+++ b/kernel/kexec.c
98201@@ -1348,7 +1348,8 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
98202 compat_ulong_t, flags)
98203 {
98204 struct compat_kexec_segment in;
98205- struct kexec_segment out, __user *ksegments;
98206+ struct kexec_segment out;
98207+ struct kexec_segment __user *ksegments;
98208 unsigned long i, result;
98209
98210 /* Don't allow clients that don't understand the native
98211diff --git a/kernel/kmod.c b/kernel/kmod.c
98212index 2777f40..a689506 100644
98213--- a/kernel/kmod.c
98214+++ b/kernel/kmod.c
98215@@ -68,7 +68,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
98216 kfree(info->argv);
98217 }
98218
98219-static int call_modprobe(char *module_name, int wait)
98220+static int call_modprobe(char *module_name, char *module_param, int wait)
98221 {
98222 struct subprocess_info *info;
98223 static char *envp[] = {
98224@@ -78,7 +78,7 @@ static int call_modprobe(char *module_name, int wait)
98225 NULL
98226 };
98227
98228- char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
98229+ char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
98230 if (!argv)
98231 goto out;
98232
98233@@ -90,7 +90,8 @@ static int call_modprobe(char *module_name, int wait)
98234 argv[1] = "-q";
98235 argv[2] = "--";
98236 argv[3] = module_name; /* check free_modprobe_argv() */
98237- argv[4] = NULL;
98238+ argv[4] = module_param;
98239+ argv[5] = NULL;
98240
98241 info = call_usermodehelper_setup(modprobe_path, argv, envp, GFP_KERNEL,
98242 NULL, free_modprobe_argv, NULL);
98243@@ -122,9 +123,8 @@ out:
98244 * If module auto-loading support is disabled then this function
98245 * becomes a no-operation.
98246 */
98247-int __request_module(bool wait, const char *fmt, ...)
98248+static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
98249 {
98250- va_list args;
98251 char module_name[MODULE_NAME_LEN];
98252 unsigned int max_modprobes;
98253 int ret;
98254@@ -143,9 +143,7 @@ int __request_module(bool wait, const char *fmt, ...)
98255 if (!modprobe_path[0])
98256 return 0;
98257
98258- va_start(args, fmt);
98259- ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
98260- va_end(args);
98261+ ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
98262 if (ret >= MODULE_NAME_LEN)
98263 return -ENAMETOOLONG;
98264
98265@@ -153,6 +151,20 @@ int __request_module(bool wait, const char *fmt, ...)
98266 if (ret)
98267 return ret;
98268
98269+#ifdef CONFIG_GRKERNSEC_MODHARDEN
98270+ if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
98271+ /* hack to workaround consolekit/udisks stupidity */
98272+ read_lock(&tasklist_lock);
98273+ if (!strcmp(current->comm, "mount") &&
98274+ current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
98275+ read_unlock(&tasklist_lock);
98276+ printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
98277+ return -EPERM;
98278+ }
98279+ read_unlock(&tasklist_lock);
98280+ }
98281+#endif
98282+
98283 /* If modprobe needs a service that is in a module, we get a recursive
98284 * loop. Limit the number of running kmod threads to max_threads/2 or
98285 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method
98286@@ -181,16 +193,61 @@ int __request_module(bool wait, const char *fmt, ...)
98287
98288 trace_module_request(module_name, wait, _RET_IP_);
98289
98290- ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
98291+ ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
98292
98293 atomic_dec(&kmod_concurrent);
98294 return ret;
98295 }
98296+
98297+int ___request_module(bool wait, char *module_param, const char *fmt, ...)
98298+{
98299+ va_list args;
98300+ int ret;
98301+
98302+ va_start(args, fmt);
98303+ ret = ____request_module(wait, module_param, fmt, args);
98304+ va_end(args);
98305+
98306+ return ret;
98307+}
98308+
98309+int __request_module(bool wait, const char *fmt, ...)
98310+{
98311+ va_list args;
98312+ int ret;
98313+
98314+#ifdef CONFIG_GRKERNSEC_MODHARDEN
98315+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
98316+ char module_param[MODULE_NAME_LEN];
98317+
98318+ memset(module_param, 0, sizeof(module_param));
98319+
98320+ snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
98321+
98322+ va_start(args, fmt);
98323+ ret = ____request_module(wait, module_param, fmt, args);
98324+ va_end(args);
98325+
98326+ return ret;
98327+ }
98328+#endif
98329+
98330+ va_start(args, fmt);
98331+ ret = ____request_module(wait, NULL, fmt, args);
98332+ va_end(args);
98333+
98334+ return ret;
98335+}
98336+
98337 EXPORT_SYMBOL(__request_module);
98338 #endif /* CONFIG_MODULES */
98339
98340 static void call_usermodehelper_freeinfo(struct subprocess_info *info)
98341 {
98342+#ifdef CONFIG_GRKERNSEC
98343+ kfree(info->path);
98344+ info->path = info->origpath;
98345+#endif
98346 if (info->cleanup)
98347 (*info->cleanup)(info);
98348 kfree(info);
98349@@ -232,6 +289,21 @@ static int ____call_usermodehelper(void *data)
98350 */
98351 set_user_nice(current, 0);
98352
98353+#ifdef CONFIG_GRKERNSEC
98354+ /* this is race-free as far as userland is concerned as we copied
98355+ out the path to be used prior to this point and are now operating
98356+ on that copy
98357+ */
98358+ if ((strncmp(sub_info->path, "/sbin/", 6) && strncmp(sub_info->path, "/usr/lib/", 9) &&
98359+ strncmp(sub_info->path, "/lib/", 5) && strncmp(sub_info->path, "/lib64/", 7) &&
98360+ strncmp(sub_info->path, "/usr/libexec/", 13) && strncmp(sub_info->path, "/usr/bin/", 9) &&
98361+ strcmp(sub_info->path, "/usr/share/apport/apport")) || strstr(sub_info->path, "..")) {
98362+ printk(KERN_ALERT "grsec: denied exec of usermode helper binary %.950s located outside of permitted system paths\n", sub_info->path);
98363+ retval = -EPERM;
98364+ goto out;
98365+ }
98366+#endif
98367+
98368 retval = -ENOMEM;
98369 new = prepare_kernel_cred(current);
98370 if (!new)
98371@@ -254,8 +326,8 @@ static int ____call_usermodehelper(void *data)
98372 commit_creds(new);
98373
98374 retval = do_execve(getname_kernel(sub_info->path),
98375- (const char __user *const __user *)sub_info->argv,
98376- (const char __user *const __user *)sub_info->envp);
98377+ (const char __user *const __force_user *)sub_info->argv,
98378+ (const char __user *const __force_user *)sub_info->envp);
98379 out:
98380 sub_info->retval = retval;
98381 /* wait_for_helper() will call umh_complete if UHM_WAIT_PROC. */
98382@@ -288,7 +360,7 @@ static int wait_for_helper(void *data)
98383 *
98384 * Thus the __user pointer cast is valid here.
98385 */
98386- sys_wait4(pid, (int __user *)&ret, 0, NULL);
98387+ sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
98388
98389 /*
98390 * If ret is 0, either ____call_usermodehelper failed and the
98391@@ -510,7 +582,12 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
98392 goto out;
98393
98394 INIT_WORK(&sub_info->work, __call_usermodehelper);
98395+#ifdef CONFIG_GRKERNSEC
98396+ sub_info->origpath = path;
98397+ sub_info->path = kstrdup(path, gfp_mask);
98398+#else
98399 sub_info->path = path;
98400+#endif
98401 sub_info->argv = argv;
98402 sub_info->envp = envp;
98403
98404@@ -612,7 +689,7 @@ EXPORT_SYMBOL(call_usermodehelper);
98405 static int proc_cap_handler(struct ctl_table *table, int write,
98406 void __user *buffer, size_t *lenp, loff_t *ppos)
98407 {
98408- struct ctl_table t;
98409+ ctl_table_no_const t;
98410 unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
98411 kernel_cap_t new_cap;
98412 int err, i;
98413diff --git a/kernel/kprobes.c b/kernel/kprobes.c
98414index c90e417..e6c515d 100644
98415--- a/kernel/kprobes.c
98416+++ b/kernel/kprobes.c
98417@@ -31,6 +31,9 @@
98418 * <jkenisto@us.ibm.com> and Prasanna S Panchamukhi
98419 * <prasanna@in.ibm.com> added function-return probes.
98420 */
98421+#ifdef CONFIG_GRKERNSEC_HIDESYM
98422+#define __INCLUDED_BY_HIDESYM 1
98423+#endif
98424 #include <linux/kprobes.h>
98425 #include <linux/hash.h>
98426 #include <linux/init.h>
98427@@ -122,12 +125,12 @@ enum kprobe_slot_state {
98428
98429 static void *alloc_insn_page(void)
98430 {
98431- return module_alloc(PAGE_SIZE);
98432+ return module_alloc_exec(PAGE_SIZE);
98433 }
98434
98435 static void free_insn_page(void *page)
98436 {
98437- module_memfree(page);
98438+ module_memfree_exec(page);
98439 }
98440
98441 struct kprobe_insn_cache kprobe_insn_slots = {
98442@@ -2198,11 +2201,11 @@ static void report_probe(struct seq_file *pi, struct kprobe *p,
98443 kprobe_type = "k";
98444
98445 if (sym)
98446- seq_printf(pi, "%p %s %s+0x%x %s ",
98447+ seq_printf(pi, "%pK %s %s+0x%x %s ",
98448 p->addr, kprobe_type, sym, offset,
98449 (modname ? modname : " "));
98450 else
98451- seq_printf(pi, "%p %s %p ",
98452+ seq_printf(pi, "%pK %s %pK ",
98453 p->addr, kprobe_type, p->addr);
98454
98455 if (!pp)
98456diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
98457index 6683cce..daf8999 100644
98458--- a/kernel/ksysfs.c
98459+++ b/kernel/ksysfs.c
98460@@ -50,6 +50,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
98461 {
98462 if (count+1 > UEVENT_HELPER_PATH_LEN)
98463 return -ENOENT;
98464+ if (!capable(CAP_SYS_ADMIN))
98465+ return -EPERM;
98466 memcpy(uevent_helper, buf, count);
98467 uevent_helper[count] = '\0';
98468 if (count && uevent_helper[count-1] == '\n')
98469@@ -176,7 +178,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
98470 return count;
98471 }
98472
98473-static struct bin_attribute notes_attr = {
98474+static bin_attribute_no_const notes_attr __read_only = {
98475 .attr = {
98476 .name = "notes",
98477 .mode = S_IRUGO,
98478diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
98479index ba77ab5..d6a3e20 100644
98480--- a/kernel/locking/lockdep.c
98481+++ b/kernel/locking/lockdep.c
98482@@ -599,6 +599,10 @@ static int static_obj(void *obj)
98483 end = (unsigned long) &_end,
98484 addr = (unsigned long) obj;
98485
98486+#ifdef CONFIG_PAX_KERNEXEC
98487+ start = ktla_ktva(start);
98488+#endif
98489+
98490 /*
98491 * static variable?
98492 */
98493@@ -743,6 +747,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
98494 if (!static_obj(lock->key)) {
98495 debug_locks_off();
98496 printk("INFO: trying to register non-static key.\n");
98497+ printk("lock:%pS key:%pS.\n", lock, lock->key);
98498 printk("the code is fine but needs lockdep annotation.\n");
98499 printk("turning off the locking correctness validator.\n");
98500 dump_stack();
98501@@ -3088,7 +3093,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
98502 if (!class)
98503 return 0;
98504 }
98505- atomic_inc((atomic_t *)&class->ops);
98506+ atomic_long_inc_unchecked((atomic_long_unchecked_t *)&class->ops);
98507 if (very_verbose(class)) {
98508 printk("\nacquire class [%p] %s", class->key, class->name);
98509 if (class->name_version > 1)
98510diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
98511index ef43ac4..2720dfa 100644
98512--- a/kernel/locking/lockdep_proc.c
98513+++ b/kernel/locking/lockdep_proc.c
98514@@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
98515 return 0;
98516 }
98517
98518- seq_printf(m, "%p", class->key);
98519+ seq_printf(m, "%pK", class->key);
98520 #ifdef CONFIG_DEBUG_LOCKDEP
98521 seq_printf(m, " OPS:%8ld", class->ops);
98522 #endif
98523@@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
98524
98525 list_for_each_entry(entry, &class->locks_after, entry) {
98526 if (entry->distance == 1) {
98527- seq_printf(m, " -> [%p] ", entry->class->key);
98528+ seq_printf(m, " -> [%pK] ", entry->class->key);
98529 print_name(m, entry->class);
98530 seq_puts(m, "\n");
98531 }
98532@@ -152,7 +152,7 @@ static int lc_show(struct seq_file *m, void *v)
98533 if (!class->key)
98534 continue;
98535
98536- seq_printf(m, "[%p] ", class->key);
98537+ seq_printf(m, "[%pK] ", class->key);
98538 print_name(m, class);
98539 seq_puts(m, "\n");
98540 }
98541@@ -496,7 +496,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
98542 if (!i)
98543 seq_line(m, '-', 40-namelen, namelen);
98544
98545- snprintf(ip, sizeof(ip), "[<%p>]",
98546+ snprintf(ip, sizeof(ip), "[<%pK>]",
98547 (void *)class->contention_point[i]);
98548 seq_printf(m, "%40s %14lu %29s %pS\n",
98549 name, stats->contention_point[i],
98550@@ -511,7 +511,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
98551 if (!i)
98552 seq_line(m, '-', 40-namelen, namelen);
98553
98554- snprintf(ip, sizeof(ip), "[<%p>]",
98555+ snprintf(ip, sizeof(ip), "[<%pK>]",
98556 (void *)class->contending_point[i]);
98557 seq_printf(m, "%40s %14lu %29s %pS\n",
98558 name, stats->contending_point[i],
98559diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
98560index d1fe2ba..180cd65e 100644
98561--- a/kernel/locking/mcs_spinlock.h
98562+++ b/kernel/locking/mcs_spinlock.h
98563@@ -78,7 +78,7 @@ void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
98564 */
98565 return;
98566 }
98567- ACCESS_ONCE(prev->next) = node;
98568+ ACCESS_ONCE_RW(prev->next) = node;
98569
98570 /* Wait until the lock holder passes the lock down. */
98571 arch_mcs_spin_lock_contended(&node->locked);
98572diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
98573index 3ef3736..9c951fa 100644
98574--- a/kernel/locking/mutex-debug.c
98575+++ b/kernel/locking/mutex-debug.c
98576@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
98577 }
98578
98579 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98580- struct thread_info *ti)
98581+ struct task_struct *task)
98582 {
98583 SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
98584
98585 /* Mark the current thread as blocked on the lock: */
98586- ti->task->blocked_on = waiter;
98587+ task->blocked_on = waiter;
98588 }
98589
98590 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98591- struct thread_info *ti)
98592+ struct task_struct *task)
98593 {
98594 DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
98595- DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
98596- DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
98597- ti->task->blocked_on = NULL;
98598+ DEBUG_LOCKS_WARN_ON(waiter->task != task);
98599+ DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
98600+ task->blocked_on = NULL;
98601
98602 list_del_init(&waiter->list);
98603 waiter->task = NULL;
98604diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
98605index 0799fd3..d06ae3b 100644
98606--- a/kernel/locking/mutex-debug.h
98607+++ b/kernel/locking/mutex-debug.h
98608@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
98609 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
98610 extern void debug_mutex_add_waiter(struct mutex *lock,
98611 struct mutex_waiter *waiter,
98612- struct thread_info *ti);
98613+ struct task_struct *task);
98614 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98615- struct thread_info *ti);
98616+ struct task_struct *task);
98617 extern void debug_mutex_unlock(struct mutex *lock);
98618 extern void debug_mutex_init(struct mutex *lock, const char *name,
98619 struct lock_class_key *key);
98620diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
98621index 94674e5..de4966f 100644
98622--- a/kernel/locking/mutex.c
98623+++ b/kernel/locking/mutex.c
98624@@ -542,7 +542,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
98625 goto skip_wait;
98626
98627 debug_mutex_lock_common(lock, &waiter);
98628- debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
98629+ debug_mutex_add_waiter(lock, &waiter, task);
98630
98631 /* add waiting tasks to the end of the waitqueue (FIFO): */
98632 list_add_tail(&waiter.list, &lock->wait_list);
98633@@ -589,7 +589,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
98634 }
98635 __set_task_state(task, TASK_RUNNING);
98636
98637- mutex_remove_waiter(lock, &waiter, current_thread_info());
98638+ mutex_remove_waiter(lock, &waiter, task);
98639 /* set it to 0 if there are no waiters left: */
98640 if (likely(list_empty(&lock->wait_list)))
98641 atomic_set(&lock->count, 0);
98642@@ -610,7 +610,7 @@ skip_wait:
98643 return 0;
98644
98645 err:
98646- mutex_remove_waiter(lock, &waiter, task_thread_info(task));
98647+ mutex_remove_waiter(lock, &waiter, task);
98648 spin_unlock_mutex(&lock->wait_lock, flags);
98649 debug_mutex_free_waiter(&waiter);
98650 mutex_release(&lock->dep_map, 1, ip);
98651diff --git a/kernel/locking/osq_lock.c b/kernel/locking/osq_lock.c
98652index c112d00..1946ad9 100644
98653--- a/kernel/locking/osq_lock.c
98654+++ b/kernel/locking/osq_lock.c
98655@@ -98,7 +98,7 @@ bool osq_lock(struct optimistic_spin_queue *lock)
98656
98657 prev = decode_cpu(old);
98658 node->prev = prev;
98659- ACCESS_ONCE(prev->next) = node;
98660+ ACCESS_ONCE_RW(prev->next) = node;
98661
98662 /*
98663 * Normally @prev is untouchable after the above store; because at that
98664@@ -170,8 +170,8 @@ unqueue:
98665 * it will wait in Step-A.
98666 */
98667
98668- ACCESS_ONCE(next->prev) = prev;
98669- ACCESS_ONCE(prev->next) = next;
98670+ ACCESS_ONCE_RW(next->prev) = prev;
98671+ ACCESS_ONCE_RW(prev->next) = next;
98672
98673 return false;
98674 }
98675@@ -193,11 +193,11 @@ void osq_unlock(struct optimistic_spin_queue *lock)
98676 node = this_cpu_ptr(&osq_node);
98677 next = xchg(&node->next, NULL);
98678 if (next) {
98679- ACCESS_ONCE(next->locked) = 1;
98680+ ACCESS_ONCE_RW(next->locked) = 1;
98681 return;
98682 }
98683
98684 next = osq_wait_next(lock, node, NULL);
98685 if (next)
98686- ACCESS_ONCE(next->locked) = 1;
98687+ ACCESS_ONCE_RW(next->locked) = 1;
98688 }
98689diff --git a/kernel/locking/rtmutex-tester.c b/kernel/locking/rtmutex-tester.c
98690index 1d96dd0..994ff19 100644
98691--- a/kernel/locking/rtmutex-tester.c
98692+++ b/kernel/locking/rtmutex-tester.c
98693@@ -22,7 +22,7 @@
98694 #define MAX_RT_TEST_MUTEXES 8
98695
98696 static spinlock_t rttest_lock;
98697-static atomic_t rttest_event;
98698+static atomic_unchecked_t rttest_event;
98699
98700 struct test_thread_data {
98701 int opcode;
98702@@ -63,7 +63,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98703
98704 case RTTEST_LOCKCONT:
98705 td->mutexes[td->opdata] = 1;
98706- td->event = atomic_add_return(1, &rttest_event);
98707+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98708 return 0;
98709
98710 case RTTEST_RESET:
98711@@ -76,7 +76,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98712 return 0;
98713
98714 case RTTEST_RESETEVENT:
98715- atomic_set(&rttest_event, 0);
98716+ atomic_set_unchecked(&rttest_event, 0);
98717 return 0;
98718
98719 default:
98720@@ -93,9 +93,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98721 return ret;
98722
98723 td->mutexes[id] = 1;
98724- td->event = atomic_add_return(1, &rttest_event);
98725+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98726 rt_mutex_lock(&mutexes[id]);
98727- td->event = atomic_add_return(1, &rttest_event);
98728+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98729 td->mutexes[id] = 4;
98730 return 0;
98731
98732@@ -106,9 +106,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98733 return ret;
98734
98735 td->mutexes[id] = 1;
98736- td->event = atomic_add_return(1, &rttest_event);
98737+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98738 ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
98739- td->event = atomic_add_return(1, &rttest_event);
98740+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98741 td->mutexes[id] = ret ? 0 : 4;
98742 return ret ? -EINTR : 0;
98743
98744@@ -117,9 +117,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98745 if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
98746 return ret;
98747
98748- td->event = atomic_add_return(1, &rttest_event);
98749+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98750 rt_mutex_unlock(&mutexes[id]);
98751- td->event = atomic_add_return(1, &rttest_event);
98752+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98753 td->mutexes[id] = 0;
98754 return 0;
98755
98756@@ -166,7 +166,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98757 break;
98758
98759 td->mutexes[dat] = 2;
98760- td->event = atomic_add_return(1, &rttest_event);
98761+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98762 break;
98763
98764 default:
98765@@ -186,7 +186,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98766 return;
98767
98768 td->mutexes[dat] = 3;
98769- td->event = atomic_add_return(1, &rttest_event);
98770+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98771 break;
98772
98773 case RTTEST_LOCKNOWAIT:
98774@@ -198,7 +198,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98775 return;
98776
98777 td->mutexes[dat] = 1;
98778- td->event = atomic_add_return(1, &rttest_event);
98779+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98780 return;
98781
98782 default:
98783diff --git a/kernel/module.c b/kernel/module.c
98784index ec53f59..67d9655 100644
98785--- a/kernel/module.c
98786+++ b/kernel/module.c
98787@@ -59,6 +59,7 @@
98788 #include <linux/jump_label.h>
98789 #include <linux/pfn.h>
98790 #include <linux/bsearch.h>
98791+#include <linux/grsecurity.h>
98792 #include <uapi/linux/module.h>
98793 #include "module-internal.h"
98794
98795@@ -155,7 +156,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
98796
98797 /* Bounds of module allocation, for speeding __module_address.
98798 * Protected by module_mutex. */
98799-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
98800+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
98801+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
98802
98803 int register_module_notifier(struct notifier_block *nb)
98804 {
98805@@ -322,7 +324,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
98806 return true;
98807
98808 list_for_each_entry_rcu(mod, &modules, list) {
98809- struct symsearch arr[] = {
98810+ struct symsearch modarr[] = {
98811 { mod->syms, mod->syms + mod->num_syms, mod->crcs,
98812 NOT_GPL_ONLY, false },
98813 { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
98814@@ -347,7 +349,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
98815 if (mod->state == MODULE_STATE_UNFORMED)
98816 continue;
98817
98818- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
98819+ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
98820 return true;
98821 }
98822 return false;
98823@@ -487,7 +489,7 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
98824 if (!pcpusec->sh_size)
98825 return 0;
98826
98827- if (align > PAGE_SIZE) {
98828+ if (align-1 >= PAGE_SIZE) {
98829 pr_warn("%s: per-cpu alignment %li > %li\n",
98830 mod->name, align, PAGE_SIZE);
98831 align = PAGE_SIZE;
98832@@ -1053,7 +1055,7 @@ struct module_attribute module_uevent =
98833 static ssize_t show_coresize(struct module_attribute *mattr,
98834 struct module_kobject *mk, char *buffer)
98835 {
98836- return sprintf(buffer, "%u\n", mk->mod->core_size);
98837+ return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
98838 }
98839
98840 static struct module_attribute modinfo_coresize =
98841@@ -1062,7 +1064,7 @@ static struct module_attribute modinfo_coresize =
98842 static ssize_t show_initsize(struct module_attribute *mattr,
98843 struct module_kobject *mk, char *buffer)
98844 {
98845- return sprintf(buffer, "%u\n", mk->mod->init_size);
98846+ return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw);
98847 }
98848
98849 static struct module_attribute modinfo_initsize =
98850@@ -1154,12 +1156,29 @@ static int check_version(Elf_Shdr *sechdrs,
98851 goto bad_version;
98852 }
98853
98854+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
98855+ /*
98856+ * avoid potentially printing jibberish on attempted load
98857+ * of a module randomized with a different seed
98858+ */
98859+ pr_warn("no symbol version for %s\n", symname);
98860+#else
98861 pr_warn("%s: no symbol version for %s\n", mod->name, symname);
98862+#endif
98863 return 0;
98864
98865 bad_version:
98866+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
98867+ /*
98868+ * avoid potentially printing jibberish on attempted load
98869+ * of a module randomized with a different seed
98870+ */
98871+ pr_warn("attempted module disagrees about version of symbol %s\n",
98872+ symname);
98873+#else
98874 pr_warn("%s: disagrees about version of symbol %s\n",
98875 mod->name, symname);
98876+#endif
98877 return 0;
98878 }
98879
98880@@ -1281,7 +1300,7 @@ resolve_symbol_wait(struct module *mod,
98881 */
98882 #ifdef CONFIG_SYSFS
98883
98884-#ifdef CONFIG_KALLSYMS
98885+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
98886 static inline bool sect_empty(const Elf_Shdr *sect)
98887 {
98888 return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
98889@@ -1419,7 +1438,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
98890 {
98891 unsigned int notes, loaded, i;
98892 struct module_notes_attrs *notes_attrs;
98893- struct bin_attribute *nattr;
98894+ bin_attribute_no_const *nattr;
98895
98896 /* failed to create section attributes, so can't create notes */
98897 if (!mod->sect_attrs)
98898@@ -1531,7 +1550,7 @@ static void del_usage_links(struct module *mod)
98899 static int module_add_modinfo_attrs(struct module *mod)
98900 {
98901 struct module_attribute *attr;
98902- struct module_attribute *temp_attr;
98903+ module_attribute_no_const *temp_attr;
98904 int error = 0;
98905 int i;
98906
98907@@ -1741,21 +1760,21 @@ static void set_section_ro_nx(void *base,
98908
98909 static void unset_module_core_ro_nx(struct module *mod)
98910 {
98911- set_page_attributes(mod->module_core + mod->core_text_size,
98912- mod->module_core + mod->core_size,
98913+ set_page_attributes(mod->module_core_rw,
98914+ mod->module_core_rw + mod->core_size_rw,
98915 set_memory_x);
98916- set_page_attributes(mod->module_core,
98917- mod->module_core + mod->core_ro_size,
98918+ set_page_attributes(mod->module_core_rx,
98919+ mod->module_core_rx + mod->core_size_rx,
98920 set_memory_rw);
98921 }
98922
98923 static void unset_module_init_ro_nx(struct module *mod)
98924 {
98925- set_page_attributes(mod->module_init + mod->init_text_size,
98926- mod->module_init + mod->init_size,
98927+ set_page_attributes(mod->module_init_rw,
98928+ mod->module_init_rw + mod->init_size_rw,
98929 set_memory_x);
98930- set_page_attributes(mod->module_init,
98931- mod->module_init + mod->init_ro_size,
98932+ set_page_attributes(mod->module_init_rx,
98933+ mod->module_init_rx + mod->init_size_rx,
98934 set_memory_rw);
98935 }
98936
98937@@ -1768,14 +1787,14 @@ void set_all_modules_text_rw(void)
98938 list_for_each_entry_rcu(mod, &modules, list) {
98939 if (mod->state == MODULE_STATE_UNFORMED)
98940 continue;
98941- if ((mod->module_core) && (mod->core_text_size)) {
98942- set_page_attributes(mod->module_core,
98943- mod->module_core + mod->core_text_size,
98944+ if ((mod->module_core_rx) && (mod->core_size_rx)) {
98945+ set_page_attributes(mod->module_core_rx,
98946+ mod->module_core_rx + mod->core_size_rx,
98947 set_memory_rw);
98948 }
98949- if ((mod->module_init) && (mod->init_text_size)) {
98950- set_page_attributes(mod->module_init,
98951- mod->module_init + mod->init_text_size,
98952+ if ((mod->module_init_rx) && (mod->init_size_rx)) {
98953+ set_page_attributes(mod->module_init_rx,
98954+ mod->module_init_rx + mod->init_size_rx,
98955 set_memory_rw);
98956 }
98957 }
98958@@ -1791,14 +1810,14 @@ void set_all_modules_text_ro(void)
98959 list_for_each_entry_rcu(mod, &modules, list) {
98960 if (mod->state == MODULE_STATE_UNFORMED)
98961 continue;
98962- if ((mod->module_core) && (mod->core_text_size)) {
98963- set_page_attributes(mod->module_core,
98964- mod->module_core + mod->core_text_size,
98965+ if ((mod->module_core_rx) && (mod->core_size_rx)) {
98966+ set_page_attributes(mod->module_core_rx,
98967+ mod->module_core_rx + mod->core_size_rx,
98968 set_memory_ro);
98969 }
98970- if ((mod->module_init) && (mod->init_text_size)) {
98971- set_page_attributes(mod->module_init,
98972- mod->module_init + mod->init_text_size,
98973+ if ((mod->module_init_rx) && (mod->init_size_rx)) {
98974+ set_page_attributes(mod->module_init_rx,
98975+ mod->module_init_rx + mod->init_size_rx,
98976 set_memory_ro);
98977 }
98978 }
98979@@ -1807,7 +1826,15 @@ void set_all_modules_text_ro(void)
98980 #else
98981 static inline void set_section_ro_nx(void *base, unsigned long text_size, unsigned long ro_size, unsigned long total_size) { }
98982 static void unset_module_core_ro_nx(struct module *mod) { }
98983-static void unset_module_init_ro_nx(struct module *mod) { }
98984+static void unset_module_init_ro_nx(struct module *mod)
98985+{
98986+
98987+#ifdef CONFIG_PAX_KERNEXEC
98988+ set_memory_nx((unsigned long)mod->module_init_rx, PFN_UP(mod->init_size_rx));
98989+ set_memory_rw((unsigned long)mod->module_init_rx, PFN_UP(mod->init_size_rx));
98990+#endif
98991+
98992+}
98993 #endif
98994
98995 void __weak module_memfree(void *module_region)
98996@@ -1861,16 +1888,19 @@ static void free_module(struct module *mod)
98997 /* This may be NULL, but that's OK */
98998 unset_module_init_ro_nx(mod);
98999 module_arch_freeing_init(mod);
99000- module_memfree(mod->module_init);
99001+ module_memfree(mod->module_init_rw);
99002+ module_memfree_exec(mod->module_init_rx);
99003 kfree(mod->args);
99004 percpu_modfree(mod);
99005
99006 /* Free lock-classes; relies on the preceding sync_rcu(). */
99007- lockdep_free_key_range(mod->module_core, mod->core_size);
99008+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
99009+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
99010
99011 /* Finally, free the core (containing the module structure) */
99012 unset_module_core_ro_nx(mod);
99013- module_memfree(mod->module_core);
99014+ module_memfree_exec(mod->module_core_rx);
99015+ module_memfree(mod->module_core_rw);
99016
99017 #ifdef CONFIG_MPU
99018 update_protections(current->mm);
99019@@ -1939,9 +1969,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99020 int ret = 0;
99021 const struct kernel_symbol *ksym;
99022
99023+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99024+ int is_fs_load = 0;
99025+ int register_filesystem_found = 0;
99026+ char *p;
99027+
99028+ p = strstr(mod->args, "grsec_modharden_fs");
99029+ if (p) {
99030+ char *endptr = p + sizeof("grsec_modharden_fs") - 1;
99031+ /* copy \0 as well */
99032+ memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
99033+ is_fs_load = 1;
99034+ }
99035+#endif
99036+
99037 for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
99038 const char *name = info->strtab + sym[i].st_name;
99039
99040+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99041+ /* it's a real shame this will never get ripped and copied
99042+ upstream! ;(
99043+ */
99044+ if (is_fs_load && !strcmp(name, "register_filesystem"))
99045+ register_filesystem_found = 1;
99046+#endif
99047+
99048 switch (sym[i].st_shndx) {
99049 case SHN_COMMON:
99050 /* Ignore common symbols */
99051@@ -1966,7 +2018,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99052 ksym = resolve_symbol_wait(mod, info, name);
99053 /* Ok if resolved. */
99054 if (ksym && !IS_ERR(ksym)) {
99055+ pax_open_kernel();
99056 sym[i].st_value = ksym->value;
99057+ pax_close_kernel();
99058 break;
99059 }
99060
99061@@ -1985,11 +2039,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99062 secbase = (unsigned long)mod_percpu(mod);
99063 else
99064 secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
99065+ pax_open_kernel();
99066 sym[i].st_value += secbase;
99067+ pax_close_kernel();
99068 break;
99069 }
99070 }
99071
99072+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99073+ if (is_fs_load && !register_filesystem_found) {
99074+ printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
99075+ ret = -EPERM;
99076+ }
99077+#endif
99078+
99079 return ret;
99080 }
99081
99082@@ -2073,22 +2136,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
99083 || s->sh_entsize != ~0UL
99084 || strstarts(sname, ".init"))
99085 continue;
99086- s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
99087+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
99088+ s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
99089+ else
99090+ s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
99091 pr_debug("\t%s\n", sname);
99092 }
99093- switch (m) {
99094- case 0: /* executable */
99095- mod->core_size = debug_align(mod->core_size);
99096- mod->core_text_size = mod->core_size;
99097- break;
99098- case 1: /* RO: text and ro-data */
99099- mod->core_size = debug_align(mod->core_size);
99100- mod->core_ro_size = mod->core_size;
99101- break;
99102- case 3: /* whole core */
99103- mod->core_size = debug_align(mod->core_size);
99104- break;
99105- }
99106 }
99107
99108 pr_debug("Init section allocation order:\n");
99109@@ -2102,23 +2155,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
99110 || s->sh_entsize != ~0UL
99111 || !strstarts(sname, ".init"))
99112 continue;
99113- s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
99114- | INIT_OFFSET_MASK);
99115+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
99116+ s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
99117+ else
99118+ s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
99119+ s->sh_entsize |= INIT_OFFSET_MASK;
99120 pr_debug("\t%s\n", sname);
99121 }
99122- switch (m) {
99123- case 0: /* executable */
99124- mod->init_size = debug_align(mod->init_size);
99125- mod->init_text_size = mod->init_size;
99126- break;
99127- case 1: /* RO: text and ro-data */
99128- mod->init_size = debug_align(mod->init_size);
99129- mod->init_ro_size = mod->init_size;
99130- break;
99131- case 3: /* whole init */
99132- mod->init_size = debug_align(mod->init_size);
99133- break;
99134- }
99135 }
99136 }
99137
99138@@ -2291,7 +2334,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
99139
99140 /* Put symbol section at end of init part of module. */
99141 symsect->sh_flags |= SHF_ALLOC;
99142- symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
99143+ symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
99144 info->index.sym) | INIT_OFFSET_MASK;
99145 pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
99146
99147@@ -2308,16 +2351,16 @@ static void layout_symtab(struct module *mod, struct load_info *info)
99148 }
99149
99150 /* Append room for core symbols at end of core part. */
99151- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
99152- info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
99153- mod->core_size += strtab_size;
99154- mod->core_size = debug_align(mod->core_size);
99155+ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
99156+ info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
99157+ mod->core_size_rx += strtab_size;
99158+ mod->core_size_rx = debug_align(mod->core_size_rx);
99159
99160 /* Put string table section at end of init part of module. */
99161 strsect->sh_flags |= SHF_ALLOC;
99162- strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
99163+ strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
99164 info->index.str) | INIT_OFFSET_MASK;
99165- mod->init_size = debug_align(mod->init_size);
99166+ mod->init_size_rx = debug_align(mod->init_size_rx);
99167 pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
99168 }
99169
99170@@ -2334,12 +2377,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
99171 /* Make sure we get permanent strtab: don't use info->strtab. */
99172 mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
99173
99174+ pax_open_kernel();
99175+
99176 /* Set types up while we still have access to sections. */
99177 for (i = 0; i < mod->num_symtab; i++)
99178 mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
99179
99180- mod->core_symtab = dst = mod->module_core + info->symoffs;
99181- mod->core_strtab = s = mod->module_core + info->stroffs;
99182+ mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
99183+ mod->core_strtab = s = mod->module_core_rx + info->stroffs;
99184 src = mod->symtab;
99185 for (ndst = i = 0; i < mod->num_symtab; i++) {
99186 if (i == 0 ||
99187@@ -2351,6 +2396,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
99188 }
99189 }
99190 mod->core_num_syms = ndst;
99191+
99192+ pax_close_kernel();
99193 }
99194 #else
99195 static inline void layout_symtab(struct module *mod, struct load_info *info)
99196@@ -2384,17 +2431,33 @@ void * __weak module_alloc(unsigned long size)
99197 return vmalloc_exec(size);
99198 }
99199
99200-static void *module_alloc_update_bounds(unsigned long size)
99201+static void *module_alloc_update_bounds_rw(unsigned long size)
99202 {
99203 void *ret = module_alloc(size);
99204
99205 if (ret) {
99206 mutex_lock(&module_mutex);
99207 /* Update module bounds. */
99208- if ((unsigned long)ret < module_addr_min)
99209- module_addr_min = (unsigned long)ret;
99210- if ((unsigned long)ret + size > module_addr_max)
99211- module_addr_max = (unsigned long)ret + size;
99212+ if ((unsigned long)ret < module_addr_min_rw)
99213+ module_addr_min_rw = (unsigned long)ret;
99214+ if ((unsigned long)ret + size > module_addr_max_rw)
99215+ module_addr_max_rw = (unsigned long)ret + size;
99216+ mutex_unlock(&module_mutex);
99217+ }
99218+ return ret;
99219+}
99220+
99221+static void *module_alloc_update_bounds_rx(unsigned long size)
99222+{
99223+ void *ret = module_alloc_exec(size);
99224+
99225+ if (ret) {
99226+ mutex_lock(&module_mutex);
99227+ /* Update module bounds. */
99228+ if ((unsigned long)ret < module_addr_min_rx)
99229+ module_addr_min_rx = (unsigned long)ret;
99230+ if ((unsigned long)ret + size > module_addr_max_rx)
99231+ module_addr_max_rx = (unsigned long)ret + size;
99232 mutex_unlock(&module_mutex);
99233 }
99234 return ret;
99235@@ -2665,7 +2728,15 @@ static struct module *setup_load_info(struct load_info *info, int flags)
99236 mod = (void *)info->sechdrs[info->index.mod].sh_addr;
99237
99238 if (info->index.sym == 0) {
99239+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
99240+ /*
99241+ * avoid potentially printing jibberish on attempted load
99242+ * of a module randomized with a different seed
99243+ */
99244+ pr_warn("module has no symbols (stripped?)\n");
99245+#else
99246 pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
99247+#endif
99248 return ERR_PTR(-ENOEXEC);
99249 }
99250
99251@@ -2681,8 +2752,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
99252 static int check_modinfo(struct module *mod, struct load_info *info, int flags)
99253 {
99254 const char *modmagic = get_modinfo(info, "vermagic");
99255+ const char *license = get_modinfo(info, "license");
99256 int err;
99257
99258+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
99259+ if (!license || !license_is_gpl_compatible(license))
99260+ return -ENOEXEC;
99261+#endif
99262+
99263 if (flags & MODULE_INIT_IGNORE_VERMAGIC)
99264 modmagic = NULL;
99265
99266@@ -2707,7 +2784,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
99267 }
99268
99269 /* Set up license info based on the info section */
99270- set_license(mod, get_modinfo(info, "license"));
99271+ set_license(mod, license);
99272
99273 return 0;
99274 }
99275@@ -2801,7 +2878,7 @@ static int move_module(struct module *mod, struct load_info *info)
99276 void *ptr;
99277
99278 /* Do the allocs. */
99279- ptr = module_alloc_update_bounds(mod->core_size);
99280+ ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
99281 /*
99282 * The pointer to this block is stored in the module structure
99283 * which is inside the block. Just mark it as not being a
99284@@ -2811,11 +2888,11 @@ static int move_module(struct module *mod, struct load_info *info)
99285 if (!ptr)
99286 return -ENOMEM;
99287
99288- memset(ptr, 0, mod->core_size);
99289- mod->module_core = ptr;
99290+ memset(ptr, 0, mod->core_size_rw);
99291+ mod->module_core_rw = ptr;
99292
99293- if (mod->init_size) {
99294- ptr = module_alloc_update_bounds(mod->init_size);
99295+ if (mod->init_size_rw) {
99296+ ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
99297 /*
99298 * The pointer to this block is stored in the module structure
99299 * which is inside the block. This block doesn't need to be
99300@@ -2824,13 +2901,45 @@ static int move_module(struct module *mod, struct load_info *info)
99301 */
99302 kmemleak_ignore(ptr);
99303 if (!ptr) {
99304- module_memfree(mod->module_core);
99305+ module_memfree(mod->module_core_rw);
99306 return -ENOMEM;
99307 }
99308- memset(ptr, 0, mod->init_size);
99309- mod->module_init = ptr;
99310+ memset(ptr, 0, mod->init_size_rw);
99311+ mod->module_init_rw = ptr;
99312 } else
99313- mod->module_init = NULL;
99314+ mod->module_init_rw = NULL;
99315+
99316+ ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
99317+ kmemleak_not_leak(ptr);
99318+ if (!ptr) {
99319+ if (mod->module_init_rw)
99320+ module_memfree(mod->module_init_rw);
99321+ module_memfree(mod->module_core_rw);
99322+ return -ENOMEM;
99323+ }
99324+
99325+ pax_open_kernel();
99326+ memset(ptr, 0, mod->core_size_rx);
99327+ pax_close_kernel();
99328+ mod->module_core_rx = ptr;
99329+
99330+ if (mod->init_size_rx) {
99331+ ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
99332+ kmemleak_ignore(ptr);
99333+ if (!ptr && mod->init_size_rx) {
99334+ module_memfree_exec(mod->module_core_rx);
99335+ if (mod->module_init_rw)
99336+ module_memfree(mod->module_init_rw);
99337+ module_memfree(mod->module_core_rw);
99338+ return -ENOMEM;
99339+ }
99340+
99341+ pax_open_kernel();
99342+ memset(ptr, 0, mod->init_size_rx);
99343+ pax_close_kernel();
99344+ mod->module_init_rx = ptr;
99345+ } else
99346+ mod->module_init_rx = NULL;
99347
99348 /* Transfer each section which specifies SHF_ALLOC */
99349 pr_debug("final section addresses:\n");
99350@@ -2841,16 +2950,45 @@ static int move_module(struct module *mod, struct load_info *info)
99351 if (!(shdr->sh_flags & SHF_ALLOC))
99352 continue;
99353
99354- if (shdr->sh_entsize & INIT_OFFSET_MASK)
99355- dest = mod->module_init
99356- + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99357- else
99358- dest = mod->module_core + shdr->sh_entsize;
99359+ if (shdr->sh_entsize & INIT_OFFSET_MASK) {
99360+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
99361+ dest = mod->module_init_rw
99362+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99363+ else
99364+ dest = mod->module_init_rx
99365+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99366+ } else {
99367+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
99368+ dest = mod->module_core_rw + shdr->sh_entsize;
99369+ else
99370+ dest = mod->module_core_rx + shdr->sh_entsize;
99371+ }
99372+
99373+ if (shdr->sh_type != SHT_NOBITS) {
99374+
99375+#ifdef CONFIG_PAX_KERNEXEC
99376+#ifdef CONFIG_X86_64
99377+ if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
99378+ set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
99379+#endif
99380+ if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
99381+ pax_open_kernel();
99382+ memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
99383+ pax_close_kernel();
99384+ } else
99385+#endif
99386
99387- if (shdr->sh_type != SHT_NOBITS)
99388 memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
99389+ }
99390 /* Update sh_addr to point to copy in image. */
99391- shdr->sh_addr = (unsigned long)dest;
99392+
99393+#ifdef CONFIG_PAX_KERNEXEC
99394+ if (shdr->sh_flags & SHF_EXECINSTR)
99395+ shdr->sh_addr = ktva_ktla((unsigned long)dest);
99396+ else
99397+#endif
99398+
99399+ shdr->sh_addr = (unsigned long)dest;
99400 pr_debug("\t0x%lx %s\n",
99401 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
99402 }
99403@@ -2907,12 +3045,12 @@ static void flush_module_icache(const struct module *mod)
99404 * Do it before processing of module parameters, so the module
99405 * can provide parameter accessor functions of its own.
99406 */
99407- if (mod->module_init)
99408- flush_icache_range((unsigned long)mod->module_init,
99409- (unsigned long)mod->module_init
99410- + mod->init_size);
99411- flush_icache_range((unsigned long)mod->module_core,
99412- (unsigned long)mod->module_core + mod->core_size);
99413+ if (mod->module_init_rx)
99414+ flush_icache_range((unsigned long)mod->module_init_rx,
99415+ (unsigned long)mod->module_init_rx
99416+ + mod->init_size_rx);
99417+ flush_icache_range((unsigned long)mod->module_core_rx,
99418+ (unsigned long)mod->module_core_rx + mod->core_size_rx);
99419
99420 set_fs(old_fs);
99421 }
99422@@ -2970,8 +3108,10 @@ static void module_deallocate(struct module *mod, struct load_info *info)
99423 {
99424 percpu_modfree(mod);
99425 module_arch_freeing_init(mod);
99426- module_memfree(mod->module_init);
99427- module_memfree(mod->module_core);
99428+ module_memfree_exec(mod->module_init_rx);
99429+ module_memfree_exec(mod->module_core_rx);
99430+ module_memfree(mod->module_init_rw);
99431+ module_memfree(mod->module_core_rw);
99432 }
99433
99434 int __weak module_finalize(const Elf_Ehdr *hdr,
99435@@ -2984,7 +3124,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
99436 static int post_relocation(struct module *mod, const struct load_info *info)
99437 {
99438 /* Sort exception table now relocations are done. */
99439+ pax_open_kernel();
99440 sort_extable(mod->extable, mod->extable + mod->num_exentries);
99441+ pax_close_kernel();
99442
99443 /* Copy relocated percpu area over. */
99444 percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
99445@@ -3032,13 +3174,15 @@ static void do_mod_ctors(struct module *mod)
99446 /* For freeing module_init on success, in case kallsyms traversing */
99447 struct mod_initfree {
99448 struct rcu_head rcu;
99449- void *module_init;
99450+ void *module_init_rw;
99451+ void *module_init_rx;
99452 };
99453
99454 static void do_free_init(struct rcu_head *head)
99455 {
99456 struct mod_initfree *m = container_of(head, struct mod_initfree, rcu);
99457- module_memfree(m->module_init);
99458+ module_memfree(m->module_init_rw);
99459+ module_memfree_exec(m->module_init_rx);
99460 kfree(m);
99461 }
99462
99463@@ -3058,7 +3202,8 @@ static noinline int do_init_module(struct module *mod)
99464 ret = -ENOMEM;
99465 goto fail;
99466 }
99467- freeinit->module_init = mod->module_init;
99468+ freeinit->module_init_rw = mod->module_init_rw;
99469+ freeinit->module_init_rx = mod->module_init_rx;
99470
99471 /*
99472 * We want to find out whether @mod uses async during init. Clear
99473@@ -3117,10 +3262,10 @@ static noinline int do_init_module(struct module *mod)
99474 #endif
99475 unset_module_init_ro_nx(mod);
99476 module_arch_freeing_init(mod);
99477- mod->module_init = NULL;
99478- mod->init_size = 0;
99479- mod->init_ro_size = 0;
99480- mod->init_text_size = 0;
99481+ mod->module_init_rw = NULL;
99482+ mod->module_init_rx = NULL;
99483+ mod->init_size_rw = 0;
99484+ mod->init_size_rx = 0;
99485 /*
99486 * We want to free module_init, but be aware that kallsyms may be
99487 * walking this with preempt disabled. In all the failure paths,
99488@@ -3208,16 +3353,16 @@ static int complete_formation(struct module *mod, struct load_info *info)
99489 module_bug_finalize(info->hdr, info->sechdrs, mod);
99490
99491 /* Set RO and NX regions for core */
99492- set_section_ro_nx(mod->module_core,
99493- mod->core_text_size,
99494- mod->core_ro_size,
99495- mod->core_size);
99496+ set_section_ro_nx(mod->module_core_rx,
99497+ mod->core_size_rx,
99498+ mod->core_size_rx,
99499+ mod->core_size_rx);
99500
99501 /* Set RO and NX regions for init */
99502- set_section_ro_nx(mod->module_init,
99503- mod->init_text_size,
99504- mod->init_ro_size,
99505- mod->init_size);
99506+ set_section_ro_nx(mod->module_init_rx,
99507+ mod->init_size_rx,
99508+ mod->init_size_rx,
99509+ mod->init_size_rx);
99510
99511 /* Mark state as coming so strong_try_module_get() ignores us,
99512 * but kallsyms etc. can see us. */
99513@@ -3301,9 +3446,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
99514 if (err)
99515 goto free_unload;
99516
99517+ /* Now copy in args */
99518+ mod->args = strndup_user(uargs, ~0UL >> 1);
99519+ if (IS_ERR(mod->args)) {
99520+ err = PTR_ERR(mod->args);
99521+ goto free_unload;
99522+ }
99523+
99524 /* Set up MODINFO_ATTR fields */
99525 setup_modinfo(mod, info);
99526
99527+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99528+ {
99529+ char *p, *p2;
99530+
99531+ if (strstr(mod->args, "grsec_modharden_netdev")) {
99532+ 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);
99533+ err = -EPERM;
99534+ goto free_modinfo;
99535+ } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
99536+ p += sizeof("grsec_modharden_normal") - 1;
99537+ p2 = strstr(p, "_");
99538+ if (p2) {
99539+ *p2 = '\0';
99540+ printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
99541+ *p2 = '_';
99542+ }
99543+ err = -EPERM;
99544+ goto free_modinfo;
99545+ }
99546+ }
99547+#endif
99548+
99549 /* Fix up syms, so that st_value is a pointer to location. */
99550 err = simplify_symbols(mod, info);
99551 if (err < 0)
99552@@ -3319,13 +3493,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
99553
99554 flush_module_icache(mod);
99555
99556- /* Now copy in args */
99557- mod->args = strndup_user(uargs, ~0UL >> 1);
99558- if (IS_ERR(mod->args)) {
99559- err = PTR_ERR(mod->args);
99560- goto free_arch_cleanup;
99561- }
99562-
99563 dynamic_debug_setup(info->debug, info->num_debug);
99564
99565 /* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
99566@@ -3373,11 +3540,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
99567 ddebug_cleanup:
99568 dynamic_debug_remove(info->debug);
99569 synchronize_sched();
99570- kfree(mod->args);
99571- free_arch_cleanup:
99572 module_arch_cleanup(mod);
99573 free_modinfo:
99574 free_modinfo(mod);
99575+ kfree(mod->args);
99576 free_unload:
99577 module_unload_free(mod);
99578 unlink_mod:
99579@@ -3390,7 +3556,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
99580 mutex_unlock(&module_mutex);
99581 free_module:
99582 /* Free lock-classes; relies on the preceding sync_rcu() */
99583- lockdep_free_key_range(mod->module_core, mod->core_size);
99584+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
99585+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
99586
99587 module_deallocate(mod, info);
99588 free_copy:
99589@@ -3467,10 +3634,16 @@ static const char *get_ksymbol(struct module *mod,
99590 unsigned long nextval;
99591
99592 /* At worse, next value is at end of module */
99593- if (within_module_init(addr, mod))
99594- nextval = (unsigned long)mod->module_init+mod->init_text_size;
99595+ if (within_module_init_rx(addr, mod))
99596+ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
99597+ else if (within_module_init_rw(addr, mod))
99598+ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
99599+ else if (within_module_core_rx(addr, mod))
99600+ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
99601+ else if (within_module_core_rw(addr, mod))
99602+ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
99603 else
99604- nextval = (unsigned long)mod->module_core+mod->core_text_size;
99605+ return NULL;
99606
99607 /* Scan for closest preceding symbol, and next symbol. (ELF
99608 starts real symbols at 1). */
99609@@ -3718,7 +3891,7 @@ static int m_show(struct seq_file *m, void *p)
99610 return 0;
99611
99612 seq_printf(m, "%s %u",
99613- mod->name, mod->init_size + mod->core_size);
99614+ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
99615 print_unload_info(m, mod);
99616
99617 /* Informative for users. */
99618@@ -3727,7 +3900,7 @@ static int m_show(struct seq_file *m, void *p)
99619 mod->state == MODULE_STATE_COMING ? "Loading" :
99620 "Live");
99621 /* Used by oprofile and other similar tools. */
99622- seq_printf(m, " 0x%pK", mod->module_core);
99623+ seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
99624
99625 /* Taints info */
99626 if (mod->taints)
99627@@ -3763,7 +3936,17 @@ static const struct file_operations proc_modules_operations = {
99628
99629 static int __init proc_modules_init(void)
99630 {
99631+#ifndef CONFIG_GRKERNSEC_HIDESYM
99632+#ifdef CONFIG_GRKERNSEC_PROC_USER
99633+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
99634+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
99635+ proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
99636+#else
99637 proc_create("modules", 0, NULL, &proc_modules_operations);
99638+#endif
99639+#else
99640+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
99641+#endif
99642 return 0;
99643 }
99644 module_init(proc_modules_init);
99645@@ -3824,7 +4007,8 @@ struct module *__module_address(unsigned long addr)
99646 {
99647 struct module *mod;
99648
99649- if (addr < module_addr_min || addr > module_addr_max)
99650+ if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
99651+ (addr < module_addr_min_rw || addr > module_addr_max_rw))
99652 return NULL;
99653
99654 list_for_each_entry_rcu(mod, &modules, list) {
99655@@ -3865,11 +4049,20 @@ bool is_module_text_address(unsigned long addr)
99656 */
99657 struct module *__module_text_address(unsigned long addr)
99658 {
99659- struct module *mod = __module_address(addr);
99660+ struct module *mod;
99661+
99662+#ifdef CONFIG_X86_32
99663+ addr = ktla_ktva(addr);
99664+#endif
99665+
99666+ if (addr < module_addr_min_rx || addr > module_addr_max_rx)
99667+ return NULL;
99668+
99669+ mod = __module_address(addr);
99670+
99671 if (mod) {
99672 /* Make sure it's within the text section. */
99673- if (!within(addr, mod->module_init, mod->init_text_size)
99674- && !within(addr, mod->module_core, mod->core_text_size))
99675+ if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
99676 mod = NULL;
99677 }
99678 return mod;
99679diff --git a/kernel/notifier.c b/kernel/notifier.c
99680index ae9fc7c..5085fbf 100644
99681--- a/kernel/notifier.c
99682+++ b/kernel/notifier.c
99683@@ -5,6 +5,7 @@
99684 #include <linux/rcupdate.h>
99685 #include <linux/vmalloc.h>
99686 #include <linux/reboot.h>
99687+#include <linux/mm.h>
99688
99689 /*
99690 * Notifier list for kernel code which wants to be called
99691@@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
99692 while ((*nl) != NULL) {
99693 if (n->priority > (*nl)->priority)
99694 break;
99695- nl = &((*nl)->next);
99696+ nl = (struct notifier_block **)&((*nl)->next);
99697 }
99698- n->next = *nl;
99699+ pax_open_kernel();
99700+ *(const void **)&n->next = *nl;
99701 rcu_assign_pointer(*nl, n);
99702+ pax_close_kernel();
99703 return 0;
99704 }
99705
99706@@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
99707 return 0;
99708 if (n->priority > (*nl)->priority)
99709 break;
99710- nl = &((*nl)->next);
99711+ nl = (struct notifier_block **)&((*nl)->next);
99712 }
99713- n->next = *nl;
99714+ pax_open_kernel();
99715+ *(const void **)&n->next = *nl;
99716 rcu_assign_pointer(*nl, n);
99717+ pax_close_kernel();
99718 return 0;
99719 }
99720
99721@@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
99722 {
99723 while ((*nl) != NULL) {
99724 if ((*nl) == n) {
99725+ pax_open_kernel();
99726 rcu_assign_pointer(*nl, n->next);
99727+ pax_close_kernel();
99728 return 0;
99729 }
99730- nl = &((*nl)->next);
99731+ nl = (struct notifier_block **)&((*nl)->next);
99732 }
99733 return -ENOENT;
99734 }
99735diff --git a/kernel/padata.c b/kernel/padata.c
99736index b38bea9..91acfbe 100644
99737--- a/kernel/padata.c
99738+++ b/kernel/padata.c
99739@@ -54,7 +54,7 @@ static int padata_cpu_hash(struct parallel_data *pd)
99740 * seq_nr mod. number of cpus in use.
99741 */
99742
99743- seq_nr = atomic_inc_return(&pd->seq_nr);
99744+ seq_nr = atomic_inc_return_unchecked(&pd->seq_nr);
99745 cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
99746
99747 return padata_index_to_cpu(pd, cpu_index);
99748@@ -428,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
99749 padata_init_pqueues(pd);
99750 padata_init_squeues(pd);
99751 setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
99752- atomic_set(&pd->seq_nr, -1);
99753+ atomic_set_unchecked(&pd->seq_nr, -1);
99754 atomic_set(&pd->reorder_objects, 0);
99755 atomic_set(&pd->refcnt, 0);
99756 pd->pinst = pinst;
99757diff --git a/kernel/panic.c b/kernel/panic.c
99758index 8136ad7..15c857b 100644
99759--- a/kernel/panic.c
99760+++ b/kernel/panic.c
99761@@ -54,7 +54,7 @@ EXPORT_SYMBOL(panic_blink);
99762 /*
99763 * Stop ourself in panic -- architecture code may override this
99764 */
99765-void __weak panic_smp_self_stop(void)
99766+void __weak __noreturn panic_smp_self_stop(void)
99767 {
99768 while (1)
99769 cpu_relax();
99770@@ -425,7 +425,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
99771 disable_trace_on_warning();
99772
99773 pr_warn("------------[ cut here ]------------\n");
99774- pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS()\n",
99775+ pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pA()\n",
99776 raw_smp_processor_id(), current->pid, file, line, caller);
99777
99778 if (args)
99779@@ -490,7 +490,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
99780 */
99781 __visible void __stack_chk_fail(void)
99782 {
99783- panic("stack-protector: Kernel stack is corrupted in: %p\n",
99784+ dump_stack();
99785+ panic("stack-protector: Kernel stack is corrupted in: %pA\n",
99786 __builtin_return_address(0));
99787 }
99788 EXPORT_SYMBOL(__stack_chk_fail);
99789diff --git a/kernel/pid.c b/kernel/pid.c
99790index cd36a5e..11f185d 100644
99791--- a/kernel/pid.c
99792+++ b/kernel/pid.c
99793@@ -33,6 +33,7 @@
99794 #include <linux/rculist.h>
99795 #include <linux/bootmem.h>
99796 #include <linux/hash.h>
99797+#include <linux/security.h>
99798 #include <linux/pid_namespace.h>
99799 #include <linux/init_task.h>
99800 #include <linux/syscalls.h>
99801@@ -47,7 +48,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
99802
99803 int pid_max = PID_MAX_DEFAULT;
99804
99805-#define RESERVED_PIDS 300
99806+#define RESERVED_PIDS 500
99807
99808 int pid_max_min = RESERVED_PIDS + 1;
99809 int pid_max_max = PID_MAX_LIMIT;
99810@@ -450,10 +451,18 @@ EXPORT_SYMBOL(pid_task);
99811 */
99812 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
99813 {
99814+ struct task_struct *task;
99815+
99816 rcu_lockdep_assert(rcu_read_lock_held(),
99817 "find_task_by_pid_ns() needs rcu_read_lock()"
99818 " protection");
99819- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
99820+
99821+ task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
99822+
99823+ if (gr_pid_is_chrooted(task))
99824+ return NULL;
99825+
99826+ return task;
99827 }
99828
99829 struct task_struct *find_task_by_vpid(pid_t vnr)
99830@@ -461,6 +470,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
99831 return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
99832 }
99833
99834+struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
99835+{
99836+ rcu_lockdep_assert(rcu_read_lock_held(),
99837+ "find_task_by_pid_ns() needs rcu_read_lock()"
99838+ " protection");
99839+ return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
99840+}
99841+
99842 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
99843 {
99844 struct pid *pid;
99845diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
99846index a65ba13..f600dbb 100644
99847--- a/kernel/pid_namespace.c
99848+++ b/kernel/pid_namespace.c
99849@@ -274,7 +274,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
99850 void __user *buffer, size_t *lenp, loff_t *ppos)
99851 {
99852 struct pid_namespace *pid_ns = task_active_pid_ns(current);
99853- struct ctl_table tmp = *table;
99854+ ctl_table_no_const tmp = *table;
99855
99856 if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
99857 return -EPERM;
99858diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
99859index 7e01f78..f5da19d 100644
99860--- a/kernel/power/Kconfig
99861+++ b/kernel/power/Kconfig
99862@@ -24,6 +24,8 @@ config HIBERNATE_CALLBACKS
99863 config HIBERNATION
99864 bool "Hibernation (aka 'suspend to disk')"
99865 depends on SWAP && ARCH_HIBERNATION_POSSIBLE
99866+ depends on !GRKERNSEC_KMEM
99867+ depends on !PAX_MEMORY_SANITIZE
99868 select HIBERNATE_CALLBACKS
99869 select LZO_COMPRESS
99870 select LZO_DECOMPRESS
99871diff --git a/kernel/power/process.c b/kernel/power/process.c
99872index 564f786..361a18e 100644
99873--- a/kernel/power/process.c
99874+++ b/kernel/power/process.c
99875@@ -35,6 +35,7 @@ static int try_to_freeze_tasks(bool user_only)
99876 unsigned int elapsed_msecs;
99877 bool wakeup = false;
99878 int sleep_usecs = USEC_PER_MSEC;
99879+ bool timedout = false;
99880
99881 do_gettimeofday(&start);
99882
99883@@ -45,13 +46,20 @@ static int try_to_freeze_tasks(bool user_only)
99884
99885 while (true) {
99886 todo = 0;
99887+ if (time_after(jiffies, end_time))
99888+ timedout = true;
99889 read_lock(&tasklist_lock);
99890 for_each_process_thread(g, p) {
99891 if (p == current || !freeze_task(p))
99892 continue;
99893
99894- if (!freezer_should_skip(p))
99895+ if (!freezer_should_skip(p)) {
99896 todo++;
99897+ if (timedout) {
99898+ printk(KERN_ERR "Task refusing to freeze:\n");
99899+ sched_show_task(p);
99900+ }
99901+ }
99902 }
99903 read_unlock(&tasklist_lock);
99904
99905@@ -60,7 +68,7 @@ static int try_to_freeze_tasks(bool user_only)
99906 todo += wq_busy;
99907 }
99908
99909- if (!todo || time_after(jiffies, end_time))
99910+ if (!todo || timedout)
99911 break;
99912
99913 if (pm_wakeup_pending()) {
99914diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
99915index bb0635b..9aff9f3 100644
99916--- a/kernel/printk/printk.c
99917+++ b/kernel/printk/printk.c
99918@@ -486,6 +486,11 @@ int check_syslog_permissions(int type, bool from_file)
99919 if (from_file && type != SYSLOG_ACTION_OPEN)
99920 return 0;
99921
99922+#ifdef CONFIG_GRKERNSEC_DMESG
99923+ if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
99924+ return -EPERM;
99925+#endif
99926+
99927 if (syslog_action_restricted(type)) {
99928 if (capable(CAP_SYSLOG))
99929 return 0;
99930diff --git a/kernel/profile.c b/kernel/profile.c
99931index a7bcd28..5b368fa 100644
99932--- a/kernel/profile.c
99933+++ b/kernel/profile.c
99934@@ -37,7 +37,7 @@ struct profile_hit {
99935 #define NR_PROFILE_HIT (PAGE_SIZE/sizeof(struct profile_hit))
99936 #define NR_PROFILE_GRP (NR_PROFILE_HIT/PROFILE_GRPSZ)
99937
99938-static atomic_t *prof_buffer;
99939+static atomic_unchecked_t *prof_buffer;
99940 static unsigned long prof_len, prof_shift;
99941
99942 int prof_on __read_mostly;
99943@@ -256,7 +256,7 @@ static void profile_flip_buffers(void)
99944 hits[i].pc = 0;
99945 continue;
99946 }
99947- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
99948+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
99949 hits[i].hits = hits[i].pc = 0;
99950 }
99951 }
99952@@ -317,9 +317,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
99953 * Add the current hit(s) and flush the write-queue out
99954 * to the global buffer:
99955 */
99956- atomic_add(nr_hits, &prof_buffer[pc]);
99957+ atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
99958 for (i = 0; i < NR_PROFILE_HIT; ++i) {
99959- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
99960+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
99961 hits[i].pc = hits[i].hits = 0;
99962 }
99963 out:
99964@@ -394,7 +394,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
99965 {
99966 unsigned long pc;
99967 pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
99968- atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
99969+ atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
99970 }
99971 #endif /* !CONFIG_SMP */
99972
99973@@ -489,7 +489,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
99974 return -EFAULT;
99975 buf++; p++; count--; read++;
99976 }
99977- pnt = (char *)prof_buffer + p - sizeof(atomic_t);
99978+ pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
99979 if (copy_to_user(buf, (void *)pnt, count))
99980 return -EFAULT;
99981 read += count;
99982@@ -520,7 +520,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
99983 }
99984 #endif
99985 profile_discard_flip_buffers();
99986- memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
99987+ memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
99988 return count;
99989 }
99990
99991diff --git a/kernel/ptrace.c b/kernel/ptrace.c
99992index 9a34bd8..38d90e5 100644
99993--- a/kernel/ptrace.c
99994+++ b/kernel/ptrace.c
99995@@ -321,7 +321,7 @@ static int ptrace_attach(struct task_struct *task, long request,
99996 if (seize)
99997 flags |= PT_SEIZED;
99998 rcu_read_lock();
99999- if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
100000+ if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
100001 flags |= PT_PTRACE_CAP;
100002 rcu_read_unlock();
100003 task->ptrace = flags;
100004@@ -515,7 +515,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
100005 break;
100006 return -EIO;
100007 }
100008- if (copy_to_user(dst, buf, retval))
100009+ if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
100010 return -EFAULT;
100011 copied += retval;
100012 src += retval;
100013@@ -803,7 +803,7 @@ int ptrace_request(struct task_struct *child, long request,
100014 bool seized = child->ptrace & PT_SEIZED;
100015 int ret = -EIO;
100016 siginfo_t siginfo, *si;
100017- void __user *datavp = (void __user *) data;
100018+ void __user *datavp = (__force void __user *) data;
100019 unsigned long __user *datalp = datavp;
100020 unsigned long flags;
100021
100022@@ -1049,14 +1049,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
100023 goto out;
100024 }
100025
100026+ if (gr_handle_ptrace(child, request)) {
100027+ ret = -EPERM;
100028+ goto out_put_task_struct;
100029+ }
100030+
100031 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
100032 ret = ptrace_attach(child, request, addr, data);
100033 /*
100034 * Some architectures need to do book-keeping after
100035 * a ptrace attach.
100036 */
100037- if (!ret)
100038+ if (!ret) {
100039 arch_ptrace_attach(child);
100040+ gr_audit_ptrace(child);
100041+ }
100042 goto out_put_task_struct;
100043 }
100044
100045@@ -1084,7 +1091,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
100046 copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
100047 if (copied != sizeof(tmp))
100048 return -EIO;
100049- return put_user(tmp, (unsigned long __user *)data);
100050+ return put_user(tmp, (__force unsigned long __user *)data);
100051 }
100052
100053 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
100054@@ -1177,7 +1184,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
100055 }
100056
100057 COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
100058- compat_long_t, addr, compat_long_t, data)
100059+ compat_ulong_t, addr, compat_ulong_t, data)
100060 {
100061 struct task_struct *child;
100062 long ret;
100063@@ -1193,14 +1200,21 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
100064 goto out;
100065 }
100066
100067+ if (gr_handle_ptrace(child, request)) {
100068+ ret = -EPERM;
100069+ goto out_put_task_struct;
100070+ }
100071+
100072 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
100073 ret = ptrace_attach(child, request, addr, data);
100074 /*
100075 * Some architectures need to do book-keeping after
100076 * a ptrace attach.
100077 */
100078- if (!ret)
100079+ if (!ret) {
100080 arch_ptrace_attach(child);
100081+ gr_audit_ptrace(child);
100082+ }
100083 goto out_put_task_struct;
100084 }
100085
100086diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
100087index 30d42aa..cac5d66 100644
100088--- a/kernel/rcu/rcutorture.c
100089+++ b/kernel/rcu/rcutorture.c
100090@@ -134,12 +134,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
100091 rcu_torture_count) = { 0 };
100092 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
100093 rcu_torture_batch) = { 0 };
100094-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
100095-static atomic_t n_rcu_torture_alloc;
100096-static atomic_t n_rcu_torture_alloc_fail;
100097-static atomic_t n_rcu_torture_free;
100098-static atomic_t n_rcu_torture_mberror;
100099-static atomic_t n_rcu_torture_error;
100100+static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
100101+static atomic_unchecked_t n_rcu_torture_alloc;
100102+static atomic_unchecked_t n_rcu_torture_alloc_fail;
100103+static atomic_unchecked_t n_rcu_torture_free;
100104+static atomic_unchecked_t n_rcu_torture_mberror;
100105+static atomic_unchecked_t n_rcu_torture_error;
100106 static long n_rcu_torture_barrier_error;
100107 static long n_rcu_torture_boost_ktrerror;
100108 static long n_rcu_torture_boost_rterror;
100109@@ -148,7 +148,7 @@ static long n_rcu_torture_boosts;
100110 static long n_rcu_torture_timers;
100111 static long n_barrier_attempts;
100112 static long n_barrier_successes;
100113-static atomic_long_t n_cbfloods;
100114+static atomic_long_unchecked_t n_cbfloods;
100115 static struct list_head rcu_torture_removed;
100116
100117 static int rcu_torture_writer_state;
100118@@ -211,11 +211,11 @@ rcu_torture_alloc(void)
100119
100120 spin_lock_bh(&rcu_torture_lock);
100121 if (list_empty(&rcu_torture_freelist)) {
100122- atomic_inc(&n_rcu_torture_alloc_fail);
100123+ atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
100124 spin_unlock_bh(&rcu_torture_lock);
100125 return NULL;
100126 }
100127- atomic_inc(&n_rcu_torture_alloc);
100128+ atomic_inc_unchecked(&n_rcu_torture_alloc);
100129 p = rcu_torture_freelist.next;
100130 list_del_init(p);
100131 spin_unlock_bh(&rcu_torture_lock);
100132@@ -228,7 +228,7 @@ rcu_torture_alloc(void)
100133 static void
100134 rcu_torture_free(struct rcu_torture *p)
100135 {
100136- atomic_inc(&n_rcu_torture_free);
100137+ atomic_inc_unchecked(&n_rcu_torture_free);
100138 spin_lock_bh(&rcu_torture_lock);
100139 list_add_tail(&p->rtort_free, &rcu_torture_freelist);
100140 spin_unlock_bh(&rcu_torture_lock);
100141@@ -308,7 +308,7 @@ rcu_torture_pipe_update_one(struct rcu_torture *rp)
100142 i = rp->rtort_pipe_count;
100143 if (i > RCU_TORTURE_PIPE_LEN)
100144 i = RCU_TORTURE_PIPE_LEN;
100145- atomic_inc(&rcu_torture_wcount[i]);
100146+ atomic_inc_unchecked(&rcu_torture_wcount[i]);
100147 if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
100148 rp->rtort_mbtest = 0;
100149 return true;
100150@@ -796,7 +796,7 @@ rcu_torture_cbflood(void *arg)
100151 VERBOSE_TOROUT_STRING("rcu_torture_cbflood task started");
100152 do {
100153 schedule_timeout_interruptible(cbflood_inter_holdoff);
100154- atomic_long_inc(&n_cbfloods);
100155+ atomic_long_inc_unchecked(&n_cbfloods);
100156 WARN_ON(signal_pending(current));
100157 for (i = 0; i < cbflood_n_burst; i++) {
100158 for (j = 0; j < cbflood_n_per_burst; j++) {
100159@@ -915,7 +915,7 @@ rcu_torture_writer(void *arg)
100160 i = old_rp->rtort_pipe_count;
100161 if (i > RCU_TORTURE_PIPE_LEN)
100162 i = RCU_TORTURE_PIPE_LEN;
100163- atomic_inc(&rcu_torture_wcount[i]);
100164+ atomic_inc_unchecked(&rcu_torture_wcount[i]);
100165 old_rp->rtort_pipe_count++;
100166 switch (synctype[torture_random(&rand) % nsynctypes]) {
100167 case RTWS_DEF_FREE:
100168@@ -1036,7 +1036,7 @@ static void rcu_torture_timer(unsigned long unused)
100169 return;
100170 }
100171 if (p->rtort_mbtest == 0)
100172- atomic_inc(&n_rcu_torture_mberror);
100173+ atomic_inc_unchecked(&n_rcu_torture_mberror);
100174 spin_lock(&rand_lock);
100175 cur_ops->read_delay(&rand);
100176 n_rcu_torture_timers++;
100177@@ -1111,7 +1111,7 @@ rcu_torture_reader(void *arg)
100178 continue;
100179 }
100180 if (p->rtort_mbtest == 0)
100181- atomic_inc(&n_rcu_torture_mberror);
100182+ atomic_inc_unchecked(&n_rcu_torture_mberror);
100183 cur_ops->read_delay(&rand);
100184 preempt_disable();
100185 pipe_count = p->rtort_pipe_count;
100186@@ -1180,11 +1180,11 @@ rcu_torture_stats_print(void)
100187 rcu_torture_current,
100188 rcu_torture_current_version,
100189 list_empty(&rcu_torture_freelist),
100190- atomic_read(&n_rcu_torture_alloc),
100191- atomic_read(&n_rcu_torture_alloc_fail),
100192- atomic_read(&n_rcu_torture_free));
100193+ atomic_read_unchecked(&n_rcu_torture_alloc),
100194+ atomic_read_unchecked(&n_rcu_torture_alloc_fail),
100195+ atomic_read_unchecked(&n_rcu_torture_free));
100196 pr_cont("rtmbe: %d rtbke: %ld rtbre: %ld ",
100197- atomic_read(&n_rcu_torture_mberror),
100198+ atomic_read_unchecked(&n_rcu_torture_mberror),
100199 n_rcu_torture_boost_ktrerror,
100200 n_rcu_torture_boost_rterror);
100201 pr_cont("rtbf: %ld rtb: %ld nt: %ld ",
100202@@ -1196,17 +1196,17 @@ rcu_torture_stats_print(void)
100203 n_barrier_successes,
100204 n_barrier_attempts,
100205 n_rcu_torture_barrier_error);
100206- pr_cont("cbflood: %ld\n", atomic_long_read(&n_cbfloods));
100207+ pr_cont("cbflood: %ld\n", atomic_long_read_unchecked(&n_cbfloods));
100208
100209 pr_alert("%s%s ", torture_type, TORTURE_FLAG);
100210- if (atomic_read(&n_rcu_torture_mberror) != 0 ||
100211+ if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
100212 n_rcu_torture_barrier_error != 0 ||
100213 n_rcu_torture_boost_ktrerror != 0 ||
100214 n_rcu_torture_boost_rterror != 0 ||
100215 n_rcu_torture_boost_failure != 0 ||
100216 i > 1) {
100217 pr_cont("%s", "!!! ");
100218- atomic_inc(&n_rcu_torture_error);
100219+ atomic_inc_unchecked(&n_rcu_torture_error);
100220 WARN_ON_ONCE(1);
100221 }
100222 pr_cont("Reader Pipe: ");
100223@@ -1223,7 +1223,7 @@ rcu_torture_stats_print(void)
100224 pr_alert("%s%s ", torture_type, TORTURE_FLAG);
100225 pr_cont("Free-Block Circulation: ");
100226 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
100227- pr_cont(" %d", atomic_read(&rcu_torture_wcount[i]));
100228+ pr_cont(" %d", atomic_read_unchecked(&rcu_torture_wcount[i]));
100229 }
100230 pr_cont("\n");
100231
100232@@ -1570,7 +1570,7 @@ rcu_torture_cleanup(void)
100233
100234 rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
100235
100236- if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
100237+ if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
100238 rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
100239 else if (torture_onoff_failures())
100240 rcu_torture_print_module_parms(cur_ops,
100241@@ -1695,18 +1695,18 @@ rcu_torture_init(void)
100242
100243 rcu_torture_current = NULL;
100244 rcu_torture_current_version = 0;
100245- atomic_set(&n_rcu_torture_alloc, 0);
100246- atomic_set(&n_rcu_torture_alloc_fail, 0);
100247- atomic_set(&n_rcu_torture_free, 0);
100248- atomic_set(&n_rcu_torture_mberror, 0);
100249- atomic_set(&n_rcu_torture_error, 0);
100250+ atomic_set_unchecked(&n_rcu_torture_alloc, 0);
100251+ atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
100252+ atomic_set_unchecked(&n_rcu_torture_free, 0);
100253+ atomic_set_unchecked(&n_rcu_torture_mberror, 0);
100254+ atomic_set_unchecked(&n_rcu_torture_error, 0);
100255 n_rcu_torture_barrier_error = 0;
100256 n_rcu_torture_boost_ktrerror = 0;
100257 n_rcu_torture_boost_rterror = 0;
100258 n_rcu_torture_boost_failure = 0;
100259 n_rcu_torture_boosts = 0;
100260 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
100261- atomic_set(&rcu_torture_wcount[i], 0);
100262+ atomic_set_unchecked(&rcu_torture_wcount[i], 0);
100263 for_each_possible_cpu(cpu) {
100264 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
100265 per_cpu(rcu_torture_count, cpu)[i] = 0;
100266diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
100267index cc9ceca..ce075a6 100644
100268--- a/kernel/rcu/tiny.c
100269+++ b/kernel/rcu/tiny.c
100270@@ -42,7 +42,7 @@
100271 /* Forward declarations for tiny_plugin.h. */
100272 struct rcu_ctrlblk;
100273 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
100274-static void rcu_process_callbacks(struct softirq_action *unused);
100275+static void rcu_process_callbacks(void);
100276 static void __call_rcu(struct rcu_head *head,
100277 void (*func)(struct rcu_head *rcu),
100278 struct rcu_ctrlblk *rcp);
100279@@ -210,7 +210,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
100280 false));
100281 }
100282
100283-static void rcu_process_callbacks(struct softirq_action *unused)
100284+static __latent_entropy void rcu_process_callbacks(void)
100285 {
100286 __rcu_process_callbacks(&rcu_sched_ctrlblk);
100287 __rcu_process_callbacks(&rcu_bh_ctrlblk);
100288diff --git a/kernel/rcu/tiny_plugin.h b/kernel/rcu/tiny_plugin.h
100289index f94e209..d2985bd 100644
100290--- a/kernel/rcu/tiny_plugin.h
100291+++ b/kernel/rcu/tiny_plugin.h
100292@@ -150,10 +150,10 @@ static void check_cpu_stall(struct rcu_ctrlblk *rcp)
100293 rcp->name, rcp->ticks_this_gp, DYNTICK_TASK_EXIT_IDLE,
100294 jiffies - rcp->gp_start, rcp->qlen);
100295 dump_stack();
100296- ACCESS_ONCE(rcp->jiffies_stall) = jiffies +
100297+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies +
100298 3 * rcu_jiffies_till_stall_check() + 3;
100299 } else if (ULONG_CMP_GE(j, js)) {
100300- ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100301+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100302 }
100303 }
100304
100305@@ -161,7 +161,7 @@ static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp)
100306 {
100307 rcp->ticks_this_gp = 0;
100308 rcp->gp_start = jiffies;
100309- ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100310+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100311 }
100312
100313 static void check_cpu_stalls(void)
100314diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
100315index 48d640c..9401d30 100644
100316--- a/kernel/rcu/tree.c
100317+++ b/kernel/rcu/tree.c
100318@@ -268,7 +268,7 @@ static void rcu_momentary_dyntick_idle(void)
100319 */
100320 rdtp = this_cpu_ptr(&rcu_dynticks);
100321 smp_mb__before_atomic(); /* Earlier stuff before QS. */
100322- atomic_add(2, &rdtp->dynticks); /* QS. */
100323+ atomic_add_unchecked(2, &rdtp->dynticks); /* QS. */
100324 smp_mb__after_atomic(); /* Later stuff after QS. */
100325 break;
100326 }
100327@@ -580,9 +580,9 @@ static void rcu_eqs_enter_common(long long oldval, bool user)
100328 rcu_prepare_for_idle();
100329 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
100330 smp_mb__before_atomic(); /* See above. */
100331- atomic_inc(&rdtp->dynticks);
100332+ atomic_inc_unchecked(&rdtp->dynticks);
100333 smp_mb__after_atomic(); /* Force ordering with next sojourn. */
100334- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
100335+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
100336 rcu_dynticks_task_enter();
100337
100338 /*
100339@@ -703,10 +703,10 @@ static void rcu_eqs_exit_common(long long oldval, int user)
100340
100341 rcu_dynticks_task_exit();
100342 smp_mb__before_atomic(); /* Force ordering w/previous sojourn. */
100343- atomic_inc(&rdtp->dynticks);
100344+ atomic_inc_unchecked(&rdtp->dynticks);
100345 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
100346 smp_mb__after_atomic(); /* See above. */
100347- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100348+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100349 rcu_cleanup_after_idle();
100350 trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
100351 if (!user && !is_idle_task(current)) {
100352@@ -840,12 +840,12 @@ void rcu_nmi_enter(void)
100353 * to be in the outermost NMI handler that interrupted an RCU-idle
100354 * period (observation due to Andy Lutomirski).
100355 */
100356- if (!(atomic_read(&rdtp->dynticks) & 0x1)) {
100357+ if (!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)) {
100358 smp_mb__before_atomic(); /* Force delay from prior write. */
100359- atomic_inc(&rdtp->dynticks);
100360+ atomic_inc_unchecked(&rdtp->dynticks);
100361 /* atomic_inc() before later RCU read-side crit sects */
100362 smp_mb__after_atomic(); /* See above. */
100363- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100364+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100365 incby = 1;
100366 }
100367 rdtp->dynticks_nmi_nesting += incby;
100368@@ -870,7 +870,7 @@ void rcu_nmi_exit(void)
100369 * to us!)
100370 */
100371 WARN_ON_ONCE(rdtp->dynticks_nmi_nesting <= 0);
100372- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100373+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100374
100375 /*
100376 * If the nesting level is not 1, the CPU wasn't RCU-idle, so
100377@@ -885,9 +885,9 @@ void rcu_nmi_exit(void)
100378 rdtp->dynticks_nmi_nesting = 0;
100379 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
100380 smp_mb__before_atomic(); /* See above. */
100381- atomic_inc(&rdtp->dynticks);
100382+ atomic_inc_unchecked(&rdtp->dynticks);
100383 smp_mb__after_atomic(); /* Force delay to next write. */
100384- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
100385+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
100386 }
100387
100388 /**
100389@@ -900,7 +900,7 @@ void rcu_nmi_exit(void)
100390 */
100391 bool notrace __rcu_is_watching(void)
100392 {
100393- return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
100394+ return atomic_read_unchecked(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
100395 }
100396
100397 /**
100398@@ -983,7 +983,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
100399 static int dyntick_save_progress_counter(struct rcu_data *rdp,
100400 bool *isidle, unsigned long *maxj)
100401 {
100402- rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
100403+ rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
100404 rcu_sysidle_check_cpu(rdp, isidle, maxj);
100405 if ((rdp->dynticks_snap & 0x1) == 0) {
100406 trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
100407@@ -991,7 +991,7 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp,
100408 } else {
100409 if (ULONG_CMP_LT(ACCESS_ONCE(rdp->gpnum) + ULONG_MAX / 4,
100410 rdp->mynode->gpnum))
100411- ACCESS_ONCE(rdp->gpwrap) = true;
100412+ ACCESS_ONCE_RW(rdp->gpwrap) = true;
100413 return 0;
100414 }
100415 }
100416@@ -1009,7 +1009,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
100417 int *rcrmp;
100418 unsigned int snap;
100419
100420- curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
100421+ curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
100422 snap = (unsigned int)rdp->dynticks_snap;
100423
100424 /*
100425@@ -1072,10 +1072,10 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
100426 rdp->rsp->gp_start + jiffies_till_sched_qs) ||
100427 ULONG_CMP_GE(jiffies, rdp->rsp->jiffies_resched)) {
100428 if (!(ACCESS_ONCE(*rcrmp) & rdp->rsp->flavor_mask)) {
100429- ACCESS_ONCE(rdp->cond_resched_completed) =
100430+ ACCESS_ONCE_RW(rdp->cond_resched_completed) =
100431 ACCESS_ONCE(rdp->mynode->completed);
100432 smp_mb(); /* ->cond_resched_completed before *rcrmp. */
100433- ACCESS_ONCE(*rcrmp) =
100434+ ACCESS_ONCE_RW(*rcrmp) =
100435 ACCESS_ONCE(*rcrmp) + rdp->rsp->flavor_mask;
100436 resched_cpu(rdp->cpu); /* Force CPU into scheduler. */
100437 rdp->rsp->jiffies_resched += 5; /* Enable beating. */
100438@@ -1097,7 +1097,7 @@ static void record_gp_stall_check_time(struct rcu_state *rsp)
100439 rsp->gp_start = j;
100440 smp_wmb(); /* Record start time before stall time. */
100441 j1 = rcu_jiffies_till_stall_check();
100442- ACCESS_ONCE(rsp->jiffies_stall) = j + j1;
100443+ ACCESS_ONCE_RW(rsp->jiffies_stall) = j + j1;
100444 rsp->jiffies_resched = j + j1 / 2;
100445 rsp->n_force_qs_gpstart = ACCESS_ONCE(rsp->n_force_qs);
100446 }
100447@@ -1156,7 +1156,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gpnum)
100448 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100449 return;
100450 }
100451- ACCESS_ONCE(rsp->jiffies_stall) = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
100452+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
100453 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100454
100455 /*
100456@@ -1240,7 +1240,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
100457
100458 raw_spin_lock_irqsave(&rnp->lock, flags);
100459 if (ULONG_CMP_GE(jiffies, ACCESS_ONCE(rsp->jiffies_stall)))
100460- ACCESS_ONCE(rsp->jiffies_stall) = jiffies +
100461+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies +
100462 3 * rcu_jiffies_till_stall_check() + 3;
100463 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100464
100465@@ -1324,7 +1324,7 @@ void rcu_cpu_stall_reset(void)
100466 struct rcu_state *rsp;
100467
100468 for_each_rcu_flavor(rsp)
100469- ACCESS_ONCE(rsp->jiffies_stall) = jiffies + ULONG_MAX / 2;
100470+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies + ULONG_MAX / 2;
100471 }
100472
100473 /*
100474@@ -1671,7 +1671,7 @@ static bool __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp,
100475 rdp->rcu_qs_ctr_snap = __this_cpu_read(rcu_qs_ctr);
100476 rdp->qs_pending = !!(rnp->qsmask & rdp->grpmask);
100477 zero_cpu_stall_ticks(rdp);
100478- ACCESS_ONCE(rdp->gpwrap) = false;
100479+ ACCESS_ONCE_RW(rdp->gpwrap) = false;
100480 }
100481 return ret;
100482 }
100483@@ -1706,7 +1706,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100484 struct rcu_data *rdp;
100485 struct rcu_node *rnp = rcu_get_root(rsp);
100486
100487- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100488+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100489 rcu_bind_gp_kthread();
100490 raw_spin_lock_irq(&rnp->lock);
100491 smp_mb__after_unlock_lock();
100492@@ -1715,7 +1715,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100493 raw_spin_unlock_irq(&rnp->lock);
100494 return 0;
100495 }
100496- ACCESS_ONCE(rsp->gp_flags) = 0; /* Clear all flags: New grace period. */
100497+ ACCESS_ONCE_RW(rsp->gp_flags) = 0; /* Clear all flags: New grace period. */
100498
100499 if (WARN_ON_ONCE(rcu_gp_in_progress(rsp))) {
100500 /*
100501@@ -1756,9 +1756,9 @@ static int rcu_gp_init(struct rcu_state *rsp)
100502 rdp = this_cpu_ptr(rsp->rda);
100503 rcu_preempt_check_blocked_tasks(rnp);
100504 rnp->qsmask = rnp->qsmaskinit;
100505- ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
100506+ ACCESS_ONCE_RW(rnp->gpnum) = rsp->gpnum;
100507 WARN_ON_ONCE(rnp->completed != rsp->completed);
100508- ACCESS_ONCE(rnp->completed) = rsp->completed;
100509+ ACCESS_ONCE_RW(rnp->completed) = rsp->completed;
100510 if (rnp == rdp->mynode)
100511 (void)__note_gp_changes(rsp, rnp, rdp);
100512 rcu_preempt_boost_start_gp(rnp);
100513@@ -1767,7 +1767,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100514 rnp->grphi, rnp->qsmask);
100515 raw_spin_unlock_irq(&rnp->lock);
100516 cond_resched_rcu_qs();
100517- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100518+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100519 }
100520
100521 mutex_unlock(&rsp->onoff_mutex);
100522@@ -1784,7 +1784,7 @@ static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
100523 unsigned long maxj;
100524 struct rcu_node *rnp = rcu_get_root(rsp);
100525
100526- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100527+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100528 rsp->n_force_qs++;
100529 if (fqs_state == RCU_SAVE_DYNTICK) {
100530 /* Collect dyntick-idle snapshots. */
100531@@ -1805,7 +1805,7 @@ static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
100532 if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
100533 raw_spin_lock_irq(&rnp->lock);
100534 smp_mb__after_unlock_lock();
100535- ACCESS_ONCE(rsp->gp_flags) =
100536+ ACCESS_ONCE_RW(rsp->gp_flags) =
100537 ACCESS_ONCE(rsp->gp_flags) & ~RCU_GP_FLAG_FQS;
100538 raw_spin_unlock_irq(&rnp->lock);
100539 }
100540@@ -1823,7 +1823,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100541 struct rcu_data *rdp;
100542 struct rcu_node *rnp = rcu_get_root(rsp);
100543
100544- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100545+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100546 raw_spin_lock_irq(&rnp->lock);
100547 smp_mb__after_unlock_lock();
100548 gp_duration = jiffies - rsp->gp_start;
100549@@ -1852,7 +1852,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100550 rcu_for_each_node_breadth_first(rsp, rnp) {
100551 raw_spin_lock_irq(&rnp->lock);
100552 smp_mb__after_unlock_lock();
100553- ACCESS_ONCE(rnp->completed) = rsp->gpnum;
100554+ ACCESS_ONCE_RW(rnp->completed) = rsp->gpnum;
100555 rdp = this_cpu_ptr(rsp->rda);
100556 if (rnp == rdp->mynode)
100557 needgp = __note_gp_changes(rsp, rnp, rdp) || needgp;
100558@@ -1860,7 +1860,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100559 nocb += rcu_future_gp_cleanup(rsp, rnp);
100560 raw_spin_unlock_irq(&rnp->lock);
100561 cond_resched_rcu_qs();
100562- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100563+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100564 }
100565 rnp = rcu_get_root(rsp);
100566 raw_spin_lock_irq(&rnp->lock);
100567@@ -1868,14 +1868,14 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100568 rcu_nocb_gp_set(rnp, nocb);
100569
100570 /* Declare grace period done. */
100571- ACCESS_ONCE(rsp->completed) = rsp->gpnum;
100572+ ACCESS_ONCE_RW(rsp->completed) = rsp->gpnum;
100573 trace_rcu_grace_period(rsp->name, rsp->completed, TPS("end"));
100574 rsp->fqs_state = RCU_GP_IDLE;
100575 rdp = this_cpu_ptr(rsp->rda);
100576 /* Advance CBs to reduce false positives below. */
100577 needgp = rcu_advance_cbs(rsp, rnp, rdp) || needgp;
100578 if (needgp || cpu_needs_another_gp(rsp, rdp)) {
100579- ACCESS_ONCE(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100580+ ACCESS_ONCE_RW(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100581 trace_rcu_grace_period(rsp->name,
100582 ACCESS_ONCE(rsp->gpnum),
100583 TPS("newreq"));
100584@@ -1910,7 +1910,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
100585 if (rcu_gp_init(rsp))
100586 break;
100587 cond_resched_rcu_qs();
100588- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100589+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100590 WARN_ON(signal_pending(current));
100591 trace_rcu_grace_period(rsp->name,
100592 ACCESS_ONCE(rsp->gpnum),
100593@@ -1954,11 +1954,11 @@ static int __noreturn rcu_gp_kthread(void *arg)
100594 ACCESS_ONCE(rsp->gpnum),
100595 TPS("fqsend"));
100596 cond_resched_rcu_qs();
100597- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100598+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100599 } else {
100600 /* Deal with stray signal. */
100601 cond_resched_rcu_qs();
100602- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100603+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100604 WARN_ON(signal_pending(current));
100605 trace_rcu_grace_period(rsp->name,
100606 ACCESS_ONCE(rsp->gpnum),
100607@@ -2003,7 +2003,7 @@ rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
100608 */
100609 return false;
100610 }
100611- ACCESS_ONCE(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100612+ ACCESS_ONCE_RW(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100613 trace_rcu_grace_period(rsp->name, ACCESS_ONCE(rsp->gpnum),
100614 TPS("newreq"));
100615
100616@@ -2228,7 +2228,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
100617 rsp->qlen += rdp->qlen;
100618 rdp->n_cbs_orphaned += rdp->qlen;
100619 rdp->qlen_lazy = 0;
100620- ACCESS_ONCE(rdp->qlen) = 0;
100621+ ACCESS_ONCE_RW(rdp->qlen) = 0;
100622 }
100623
100624 /*
100625@@ -2490,7 +2490,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
100626 }
100627 smp_mb(); /* List handling before counting for rcu_barrier(). */
100628 rdp->qlen_lazy -= count_lazy;
100629- ACCESS_ONCE(rdp->qlen) = rdp->qlen - count;
100630+ ACCESS_ONCE_RW(rdp->qlen) = rdp->qlen - count;
100631 rdp->n_cbs_invoked += count;
100632
100633 /* Reinstate batch limit if we have worked down the excess. */
100634@@ -2647,7 +2647,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
100635 raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
100636 return; /* Someone beat us to it. */
100637 }
100638- ACCESS_ONCE(rsp->gp_flags) =
100639+ ACCESS_ONCE_RW(rsp->gp_flags) =
100640 ACCESS_ONCE(rsp->gp_flags) | RCU_GP_FLAG_FQS;
100641 raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
100642 rcu_gp_kthread_wake(rsp);
100643@@ -2693,7 +2693,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
100644 /*
100645 * Do RCU core processing for the current CPU.
100646 */
100647-static void rcu_process_callbacks(struct softirq_action *unused)
100648+static void rcu_process_callbacks(void)
100649 {
100650 struct rcu_state *rsp;
100651
100652@@ -2805,7 +2805,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
100653 WARN_ON_ONCE((unsigned long)head & 0x1); /* Misaligned rcu_head! */
100654 if (debug_rcu_head_queue(head)) {
100655 /* Probable double call_rcu(), so leak the callback. */
100656- ACCESS_ONCE(head->func) = rcu_leak_callback;
100657+ ACCESS_ONCE_RW(head->func) = rcu_leak_callback;
100658 WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
100659 return;
100660 }
100661@@ -2833,7 +2833,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
100662 local_irq_restore(flags);
100663 return;
100664 }
100665- ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
100666+ ACCESS_ONCE_RW(rdp->qlen) = rdp->qlen + 1;
100667 if (lazy)
100668 rdp->qlen_lazy++;
100669 else
100670@@ -3106,11 +3106,11 @@ void synchronize_sched_expedited(void)
100671 * counter wrap on a 32-bit system. Quite a few more CPUs would of
100672 * course be required on a 64-bit system.
100673 */
100674- if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
100675+ if (ULONG_CMP_GE((ulong)atomic_long_read_unchecked(&rsp->expedited_start),
100676 (ulong)atomic_long_read(&rsp->expedited_done) +
100677 ULONG_MAX / 8)) {
100678 synchronize_sched();
100679- atomic_long_inc(&rsp->expedited_wrap);
100680+ atomic_long_inc_unchecked(&rsp->expedited_wrap);
100681 return;
100682 }
100683
100684@@ -3118,12 +3118,12 @@ void synchronize_sched_expedited(void)
100685 * Take a ticket. Note that atomic_inc_return() implies a
100686 * full memory barrier.
100687 */
100688- snap = atomic_long_inc_return(&rsp->expedited_start);
100689+ snap = atomic_long_inc_return_unchecked(&rsp->expedited_start);
100690 firstsnap = snap;
100691 if (!try_get_online_cpus()) {
100692 /* CPU hotplug operation in flight, fall back to normal GP. */
100693 wait_rcu_gp(call_rcu_sched);
100694- atomic_long_inc(&rsp->expedited_normal);
100695+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100696 return;
100697 }
100698 WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
100699@@ -3136,7 +3136,7 @@ void synchronize_sched_expedited(void)
100700 for_each_cpu(cpu, cm) {
100701 struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
100702
100703- if (!(atomic_add_return(0, &rdtp->dynticks) & 0x1))
100704+ if (!(atomic_add_return_unchecked(0, &rdtp->dynticks) & 0x1))
100705 cpumask_clear_cpu(cpu, cm);
100706 }
100707 if (cpumask_weight(cm) == 0)
100708@@ -3151,14 +3151,14 @@ void synchronize_sched_expedited(void)
100709 synchronize_sched_expedited_cpu_stop,
100710 NULL) == -EAGAIN) {
100711 put_online_cpus();
100712- atomic_long_inc(&rsp->expedited_tryfail);
100713+ atomic_long_inc_unchecked(&rsp->expedited_tryfail);
100714
100715 /* Check to see if someone else did our work for us. */
100716 s = atomic_long_read(&rsp->expedited_done);
100717 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
100718 /* ensure test happens before caller kfree */
100719 smp_mb__before_atomic(); /* ^^^ */
100720- atomic_long_inc(&rsp->expedited_workdone1);
100721+ atomic_long_inc_unchecked(&rsp->expedited_workdone1);
100722 free_cpumask_var(cm);
100723 return;
100724 }
100725@@ -3168,7 +3168,7 @@ void synchronize_sched_expedited(void)
100726 udelay(trycount * num_online_cpus());
100727 } else {
100728 wait_rcu_gp(call_rcu_sched);
100729- atomic_long_inc(&rsp->expedited_normal);
100730+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100731 free_cpumask_var(cm);
100732 return;
100733 }
100734@@ -3178,7 +3178,7 @@ void synchronize_sched_expedited(void)
100735 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
100736 /* ensure test happens before caller kfree */
100737 smp_mb__before_atomic(); /* ^^^ */
100738- atomic_long_inc(&rsp->expedited_workdone2);
100739+ atomic_long_inc_unchecked(&rsp->expedited_workdone2);
100740 free_cpumask_var(cm);
100741 return;
100742 }
100743@@ -3193,14 +3193,14 @@ void synchronize_sched_expedited(void)
100744 if (!try_get_online_cpus()) {
100745 /* CPU hotplug operation in flight, use normal GP. */
100746 wait_rcu_gp(call_rcu_sched);
100747- atomic_long_inc(&rsp->expedited_normal);
100748+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100749 free_cpumask_var(cm);
100750 return;
100751 }
100752- snap = atomic_long_read(&rsp->expedited_start);
100753+ snap = atomic_long_read_unchecked(&rsp->expedited_start);
100754 smp_mb(); /* ensure read is before try_stop_cpus(). */
100755 }
100756- atomic_long_inc(&rsp->expedited_stoppedcpus);
100757+ atomic_long_inc_unchecked(&rsp->expedited_stoppedcpus);
100758
100759 all_cpus_idle:
100760 free_cpumask_var(cm);
100761@@ -3212,16 +3212,16 @@ all_cpus_idle:
100762 * than we did already did their update.
100763 */
100764 do {
100765- atomic_long_inc(&rsp->expedited_done_tries);
100766+ atomic_long_inc_unchecked(&rsp->expedited_done_tries);
100767 s = atomic_long_read(&rsp->expedited_done);
100768 if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
100769 /* ensure test happens before caller kfree */
100770 smp_mb__before_atomic(); /* ^^^ */
100771- atomic_long_inc(&rsp->expedited_done_lost);
100772+ atomic_long_inc_unchecked(&rsp->expedited_done_lost);
100773 break;
100774 }
100775 } while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
100776- atomic_long_inc(&rsp->expedited_done_exit);
100777+ atomic_long_inc_unchecked(&rsp->expedited_done_exit);
100778
100779 put_online_cpus();
100780 }
100781@@ -3431,7 +3431,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
100782 * ACCESS_ONCE() to prevent the compiler from speculating
100783 * the increment to precede the early-exit check.
100784 */
100785- ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100786+ ACCESS_ONCE_RW(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100787 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
100788 _rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
100789 smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
100790@@ -3487,7 +3487,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
100791
100792 /* Increment ->n_barrier_done to prevent duplicate work. */
100793 smp_mb(); /* Keep increment after above mechanism. */
100794- ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100795+ ACCESS_ONCE_RW(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100796 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
100797 _rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
100798 smp_mb(); /* Keep increment before caller's subsequent code. */
100799@@ -3532,7 +3532,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
100800 rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
100801 rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
100802 WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
100803- WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
100804+ WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
100805 rdp->cpu = cpu;
100806 rdp->rsp = rsp;
100807 rcu_boot_init_nocb_percpu_data(rdp);
100808@@ -3565,8 +3565,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
100809 init_callback_list(rdp); /* Re-enable callbacks on this CPU. */
100810 rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
100811 rcu_sysidle_init_percpu_data(rdp->dynticks);
100812- atomic_set(&rdp->dynticks->dynticks,
100813- (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
100814+ atomic_set_unchecked(&rdp->dynticks->dynticks,
100815+ (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
100816 raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
100817
100818 /* Add CPU to rcu_node bitmasks. */
100819diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
100820index 119de39..f07d31a 100644
100821--- a/kernel/rcu/tree.h
100822+++ b/kernel/rcu/tree.h
100823@@ -86,11 +86,11 @@ struct rcu_dynticks {
100824 long long dynticks_nesting; /* Track irq/process nesting level. */
100825 /* Process level is worth LLONG_MAX/2. */
100826 int dynticks_nmi_nesting; /* Track NMI nesting level. */
100827- atomic_t dynticks; /* Even value for idle, else odd. */
100828+ atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
100829 #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
100830 long long dynticks_idle_nesting;
100831 /* irq/process nesting level from idle. */
100832- atomic_t dynticks_idle; /* Even value for idle, else odd. */
100833+ atomic_unchecked_t dynticks_idle;/* Even value for idle, else odd. */
100834 /* "Idle" excludes userspace execution. */
100835 unsigned long dynticks_idle_jiffies;
100836 /* End of last non-NMI non-idle period. */
100837@@ -457,17 +457,17 @@ struct rcu_state {
100838 /* _rcu_barrier(). */
100839 /* End of fields guarded by barrier_mutex. */
100840
100841- atomic_long_t expedited_start; /* Starting ticket. */
100842- atomic_long_t expedited_done; /* Done ticket. */
100843- atomic_long_t expedited_wrap; /* # near-wrap incidents. */
100844- atomic_long_t expedited_tryfail; /* # acquisition failures. */
100845- atomic_long_t expedited_workdone1; /* # done by others #1. */
100846- atomic_long_t expedited_workdone2; /* # done by others #2. */
100847- atomic_long_t expedited_normal; /* # fallbacks to normal. */
100848- atomic_long_t expedited_stoppedcpus; /* # successful stop_cpus. */
100849- atomic_long_t expedited_done_tries; /* # tries to update _done. */
100850- atomic_long_t expedited_done_lost; /* # times beaten to _done. */
100851- atomic_long_t expedited_done_exit; /* # times exited _done loop. */
100852+ atomic_long_unchecked_t expedited_start; /* Starting ticket. */
100853+ atomic_long_t expedited_done; /* Done ticket. */
100854+ atomic_long_unchecked_t expedited_wrap; /* # near-wrap incidents. */
100855+ atomic_long_unchecked_t expedited_tryfail; /* # acquisition failures. */
100856+ atomic_long_unchecked_t expedited_workdone1; /* # done by others #1. */
100857+ atomic_long_unchecked_t expedited_workdone2; /* # done by others #2. */
100858+ atomic_long_unchecked_t expedited_normal; /* # fallbacks to normal. */
100859+ atomic_long_unchecked_t expedited_stoppedcpus; /* # successful stop_cpus. */
100860+ atomic_long_unchecked_t expedited_done_tries; /* # tries to update _done. */
100861+ atomic_long_unchecked_t expedited_done_lost; /* # times beaten to _done. */
100862+ atomic_long_unchecked_t expedited_done_exit; /* # times exited _done loop. */
100863
100864 unsigned long jiffies_force_qs; /* Time at which to invoke */
100865 /* force_quiescent_state(). */
100866diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
100867index 0a571e9..fbfd611 100644
100868--- a/kernel/rcu/tree_plugin.h
100869+++ b/kernel/rcu/tree_plugin.h
100870@@ -619,7 +619,7 @@ static int rcu_preempted_readers_exp(struct rcu_node *rnp)
100871 static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
100872 {
100873 return !rcu_preempted_readers_exp(rnp) &&
100874- ACCESS_ONCE(rnp->expmask) == 0;
100875+ ACCESS_ONCE_RW(rnp->expmask) == 0;
100876 }
100877
100878 /*
100879@@ -780,7 +780,7 @@ void synchronize_rcu_expedited(void)
100880
100881 /* Clean up and exit. */
100882 smp_mb(); /* ensure expedited GP seen before counter increment. */
100883- ACCESS_ONCE(sync_rcu_preempt_exp_count) =
100884+ ACCESS_ONCE_RW(sync_rcu_preempt_exp_count) =
100885 sync_rcu_preempt_exp_count + 1;
100886 unlock_mb_ret:
100887 mutex_unlock(&sync_rcu_preempt_exp_mutex);
100888@@ -1290,7 +1290,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
100889 free_cpumask_var(cm);
100890 }
100891
100892-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
100893+static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
100894 .store = &rcu_cpu_kthread_task,
100895 .thread_should_run = rcu_cpu_kthread_should_run,
100896 .thread_fn = rcu_cpu_kthread,
100897@@ -1761,7 +1761,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
100898 print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
100899 pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u fqs=%ld %s\n",
100900 cpu, ticks_value, ticks_title,
100901- atomic_read(&rdtp->dynticks) & 0xfff,
100902+ atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
100903 rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
100904 rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
100905 ACCESS_ONCE(rsp->n_force_qs) - rsp->n_force_qs_gpstart,
100906@@ -1906,7 +1906,7 @@ static void wake_nocb_leader(struct rcu_data *rdp, bool force)
100907 return;
100908 if (ACCESS_ONCE(rdp_leader->nocb_leader_sleep) || force) {
100909 /* Prior smp_mb__after_atomic() orders against prior enqueue. */
100910- ACCESS_ONCE(rdp_leader->nocb_leader_sleep) = false;
100911+ ACCESS_ONCE_RW(rdp_leader->nocb_leader_sleep) = false;
100912 wake_up(&rdp_leader->nocb_wq);
100913 }
100914 }
100915@@ -1978,7 +1978,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
100916 atomic_long_add(rhcount, &rdp->nocb_q_count);
100917 /* rcu_barrier() relies on ->nocb_q_count add before xchg. */
100918 old_rhpp = xchg(&rdp->nocb_tail, rhtp);
100919- ACCESS_ONCE(*old_rhpp) = rhp;
100920+ ACCESS_ONCE_RW(*old_rhpp) = rhp;
100921 atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
100922 smp_mb__after_atomic(); /* Store *old_rhpp before _wake test. */
100923
100924@@ -2167,7 +2167,7 @@ wait_again:
100925 continue; /* No CBs here, try next follower. */
100926
100927 /* Move callbacks to wait-for-GP list, which is empty. */
100928- ACCESS_ONCE(rdp->nocb_head) = NULL;
100929+ ACCESS_ONCE_RW(rdp->nocb_head) = NULL;
100930 rdp->nocb_gp_tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
100931 gotcbs = true;
100932 }
100933@@ -2288,7 +2288,7 @@ static int rcu_nocb_kthread(void *arg)
100934 list = ACCESS_ONCE(rdp->nocb_follower_head);
100935 BUG_ON(!list);
100936 trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, "WokeNonEmpty");
100937- ACCESS_ONCE(rdp->nocb_follower_head) = NULL;
100938+ ACCESS_ONCE_RW(rdp->nocb_follower_head) = NULL;
100939 tail = xchg(&rdp->nocb_follower_tail, &rdp->nocb_follower_head);
100940
100941 /* Each pass through the following loop invokes a callback. */
100942@@ -2338,7 +2338,7 @@ static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
100943 if (!rcu_nocb_need_deferred_wakeup(rdp))
100944 return;
100945 ndw = ACCESS_ONCE(rdp->nocb_defer_wakeup);
100946- ACCESS_ONCE(rdp->nocb_defer_wakeup) = RCU_NOGP_WAKE_NOT;
100947+ ACCESS_ONCE_RW(rdp->nocb_defer_wakeup) = RCU_NOGP_WAKE_NOT;
100948 wake_nocb_leader(rdp, ndw == RCU_NOGP_WAKE_FORCE);
100949 trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWake"));
100950 }
100951@@ -2461,7 +2461,7 @@ static void rcu_spawn_one_nocb_kthread(struct rcu_state *rsp, int cpu)
100952 t = kthread_run(rcu_nocb_kthread, rdp_spawn,
100953 "rcuo%c/%d", rsp->abbr, cpu);
100954 BUG_ON(IS_ERR(t));
100955- ACCESS_ONCE(rdp_spawn->nocb_kthread) = t;
100956+ ACCESS_ONCE_RW(rdp_spawn->nocb_kthread) = t;
100957 }
100958
100959 /*
100960@@ -2666,11 +2666,11 @@ static void rcu_sysidle_enter(int irq)
100961
100962 /* Record start of fully idle period. */
100963 j = jiffies;
100964- ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
100965+ ACCESS_ONCE_RW(rdtp->dynticks_idle_jiffies) = j;
100966 smp_mb__before_atomic();
100967- atomic_inc(&rdtp->dynticks_idle);
100968+ atomic_inc_unchecked(&rdtp->dynticks_idle);
100969 smp_mb__after_atomic();
100970- WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
100971+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1);
100972 }
100973
100974 /*
100975@@ -2741,9 +2741,9 @@ static void rcu_sysidle_exit(int irq)
100976
100977 /* Record end of idle period. */
100978 smp_mb__before_atomic();
100979- atomic_inc(&rdtp->dynticks_idle);
100980+ atomic_inc_unchecked(&rdtp->dynticks_idle);
100981 smp_mb__after_atomic();
100982- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
100983+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1));
100984
100985 /*
100986 * If we are the timekeeping CPU, we are permitted to be non-idle
100987@@ -2788,7 +2788,7 @@ static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
100988 WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
100989
100990 /* Pick up current idle and NMI-nesting counter and check. */
100991- cur = atomic_read(&rdtp->dynticks_idle);
100992+ cur = atomic_read_unchecked(&rdtp->dynticks_idle);
100993 if (cur & 0x1) {
100994 *isidle = false; /* We are not idle! */
100995 return;
100996@@ -2837,7 +2837,7 @@ static void rcu_sysidle(unsigned long j)
100997 case RCU_SYSIDLE_NOT:
100998
100999 /* First time all are idle, so note a short idle period. */
101000- ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
101001+ ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_SHORT;
101002 break;
101003
101004 case RCU_SYSIDLE_SHORT:
101005@@ -2875,7 +2875,7 @@ static void rcu_sysidle_cancel(void)
101006 {
101007 smp_mb();
101008 if (full_sysidle_state > RCU_SYSIDLE_SHORT)
101009- ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
101010+ ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_NOT;
101011 }
101012
101013 /*
101014@@ -2927,7 +2927,7 @@ static void rcu_sysidle_cb(struct rcu_head *rhp)
101015 smp_mb(); /* grace period precedes setting inuse. */
101016
101017 rshp = container_of(rhp, struct rcu_sysidle_head, rh);
101018- ACCESS_ONCE(rshp->inuse) = 0;
101019+ ACCESS_ONCE_RW(rshp->inuse) = 0;
101020 }
101021
101022 /*
101023@@ -3080,7 +3080,7 @@ static void rcu_bind_gp_kthread(void)
101024 static void rcu_dynticks_task_enter(void)
101025 {
101026 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
101027- ACCESS_ONCE(current->rcu_tasks_idle_cpu) = smp_processor_id();
101028+ ACCESS_ONCE_RW(current->rcu_tasks_idle_cpu) = smp_processor_id();
101029 #endif /* #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL) */
101030 }
101031
101032@@ -3088,6 +3088,6 @@ static void rcu_dynticks_task_enter(void)
101033 static void rcu_dynticks_task_exit(void)
101034 {
101035 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
101036- ACCESS_ONCE(current->rcu_tasks_idle_cpu) = -1;
101037+ ACCESS_ONCE_RW(current->rcu_tasks_idle_cpu) = -1;
101038 #endif /* #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL) */
101039 }
101040diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
101041index fbb6240..f6c5097 100644
101042--- a/kernel/rcu/tree_trace.c
101043+++ b/kernel/rcu/tree_trace.c
101044@@ -125,7 +125,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
101045 rdp->rcu_qs_ctr_snap == per_cpu(rcu_qs_ctr, rdp->cpu),
101046 rdp->qs_pending);
101047 seq_printf(m, " dt=%d/%llx/%d df=%lu",
101048- atomic_read(&rdp->dynticks->dynticks),
101049+ atomic_read_unchecked(&rdp->dynticks->dynticks),
101050 rdp->dynticks->dynticks_nesting,
101051 rdp->dynticks->dynticks_nmi_nesting,
101052 rdp->dynticks_fqs);
101053@@ -186,17 +186,17 @@ static int show_rcuexp(struct seq_file *m, void *v)
101054 struct rcu_state *rsp = (struct rcu_state *)m->private;
101055
101056 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",
101057- atomic_long_read(&rsp->expedited_start),
101058+ atomic_long_read_unchecked(&rsp->expedited_start),
101059 atomic_long_read(&rsp->expedited_done),
101060- atomic_long_read(&rsp->expedited_wrap),
101061- atomic_long_read(&rsp->expedited_tryfail),
101062- atomic_long_read(&rsp->expedited_workdone1),
101063- atomic_long_read(&rsp->expedited_workdone2),
101064- atomic_long_read(&rsp->expedited_normal),
101065- atomic_long_read(&rsp->expedited_stoppedcpus),
101066- atomic_long_read(&rsp->expedited_done_tries),
101067- atomic_long_read(&rsp->expedited_done_lost),
101068- atomic_long_read(&rsp->expedited_done_exit));
101069+ atomic_long_read_unchecked(&rsp->expedited_wrap),
101070+ atomic_long_read_unchecked(&rsp->expedited_tryfail),
101071+ atomic_long_read_unchecked(&rsp->expedited_workdone1),
101072+ atomic_long_read_unchecked(&rsp->expedited_workdone2),
101073+ atomic_long_read_unchecked(&rsp->expedited_normal),
101074+ atomic_long_read_unchecked(&rsp->expedited_stoppedcpus),
101075+ atomic_long_read_unchecked(&rsp->expedited_done_tries),
101076+ atomic_long_read_unchecked(&rsp->expedited_done_lost),
101077+ atomic_long_read_unchecked(&rsp->expedited_done_exit));
101078 return 0;
101079 }
101080
101081diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
101082index e0d31a3..f4dafe3 100644
101083--- a/kernel/rcu/update.c
101084+++ b/kernel/rcu/update.c
101085@@ -342,10 +342,10 @@ int rcu_jiffies_till_stall_check(void)
101086 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
101087 */
101088 if (till_stall_check < 3) {
101089- ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
101090+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
101091 till_stall_check = 3;
101092 } else if (till_stall_check > 300) {
101093- ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
101094+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
101095 till_stall_check = 300;
101096 }
101097 return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
101098@@ -501,7 +501,7 @@ static void check_holdout_task(struct task_struct *t,
101099 !ACCESS_ONCE(t->on_rq) ||
101100 (IS_ENABLED(CONFIG_NO_HZ_FULL) &&
101101 !is_idle_task(t) && t->rcu_tasks_idle_cpu >= 0)) {
101102- ACCESS_ONCE(t->rcu_tasks_holdout) = false;
101103+ ACCESS_ONCE_RW(t->rcu_tasks_holdout) = false;
101104 list_del_init(&t->rcu_tasks_holdout_list);
101105 put_task_struct(t);
101106 return;
101107@@ -589,7 +589,7 @@ static int __noreturn rcu_tasks_kthread(void *arg)
101108 !is_idle_task(t)) {
101109 get_task_struct(t);
101110 t->rcu_tasks_nvcsw = ACCESS_ONCE(t->nvcsw);
101111- ACCESS_ONCE(t->rcu_tasks_holdout) = true;
101112+ ACCESS_ONCE_RW(t->rcu_tasks_holdout) = true;
101113 list_add(&t->rcu_tasks_holdout_list,
101114 &rcu_tasks_holdouts);
101115 }
101116@@ -686,7 +686,7 @@ static void rcu_spawn_tasks_kthread(void)
101117 t = kthread_run(rcu_tasks_kthread, NULL, "rcu_tasks_kthread");
101118 BUG_ON(IS_ERR(t));
101119 smp_mb(); /* Ensure others see full kthread. */
101120- ACCESS_ONCE(rcu_tasks_kthread_ptr) = t;
101121+ ACCESS_ONCE_RW(rcu_tasks_kthread_ptr) = t;
101122 mutex_unlock(&rcu_tasks_kthread_mutex);
101123 }
101124
101125diff --git a/kernel/resource.c b/kernel/resource.c
101126index 19f2357..ebe7f35 100644
101127--- a/kernel/resource.c
101128+++ b/kernel/resource.c
101129@@ -162,8 +162,18 @@ static const struct file_operations proc_iomem_operations = {
101130
101131 static int __init ioresources_init(void)
101132 {
101133+#ifdef CONFIG_GRKERNSEC_PROC_ADD
101134+#ifdef CONFIG_GRKERNSEC_PROC_USER
101135+ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
101136+ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
101137+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
101138+ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
101139+ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
101140+#endif
101141+#else
101142 proc_create("ioports", 0, NULL, &proc_ioports_operations);
101143 proc_create("iomem", 0, NULL, &proc_iomem_operations);
101144+#endif
101145 return 0;
101146 }
101147 __initcall(ioresources_init);
101148diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
101149index eae160d..c9aa22e 100644
101150--- a/kernel/sched/auto_group.c
101151+++ b/kernel/sched/auto_group.c
101152@@ -11,7 +11,7 @@
101153
101154 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
101155 static struct autogroup autogroup_default;
101156-static atomic_t autogroup_seq_nr;
101157+static atomic_unchecked_t autogroup_seq_nr;
101158
101159 void __init autogroup_init(struct task_struct *init_task)
101160 {
101161@@ -79,7 +79,7 @@ static inline struct autogroup *autogroup_create(void)
101162
101163 kref_init(&ag->kref);
101164 init_rwsem(&ag->lock);
101165- ag->id = atomic_inc_return(&autogroup_seq_nr);
101166+ ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
101167 ag->tg = tg;
101168 #ifdef CONFIG_RT_GROUP_SCHED
101169 /*
101170diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
101171index 8d0f35d..c16360d 100644
101172--- a/kernel/sched/completion.c
101173+++ b/kernel/sched/completion.c
101174@@ -205,7 +205,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible);
101175 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
101176 * or number of jiffies left till timeout) if completed.
101177 */
101178-long __sched
101179+long __sched __intentional_overflow(-1)
101180 wait_for_completion_interruptible_timeout(struct completion *x,
101181 unsigned long timeout)
101182 {
101183@@ -222,7 +222,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
101184 *
101185 * Return: -ERESTARTSYS if interrupted, 0 if completed.
101186 */
101187-int __sched wait_for_completion_killable(struct completion *x)
101188+int __sched __intentional_overflow(-1) wait_for_completion_killable(struct completion *x)
101189 {
101190 long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
101191 if (t == -ERESTARTSYS)
101192@@ -243,7 +243,7 @@ EXPORT_SYMBOL(wait_for_completion_killable);
101193 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
101194 * or number of jiffies left till timeout) if completed.
101195 */
101196-long __sched
101197+long __sched __intentional_overflow(-1)
101198 wait_for_completion_killable_timeout(struct completion *x,
101199 unsigned long timeout)
101200 {
101201diff --git a/kernel/sched/core.c b/kernel/sched/core.c
101202index 3d5f6f6..a94298f 100644
101203--- a/kernel/sched/core.c
101204+++ b/kernel/sched/core.c
101205@@ -1862,7 +1862,7 @@ void set_numabalancing_state(bool enabled)
101206 int sysctl_numa_balancing(struct ctl_table *table, int write,
101207 void __user *buffer, size_t *lenp, loff_t *ppos)
101208 {
101209- struct ctl_table t;
101210+ ctl_table_no_const t;
101211 int err;
101212 int state = numabalancing_enabled;
101213
101214@@ -2312,8 +2312,10 @@ context_switch(struct rq *rq, struct task_struct *prev,
101215 next->active_mm = oldmm;
101216 atomic_inc(&oldmm->mm_count);
101217 enter_lazy_tlb(oldmm, next);
101218- } else
101219+ } else {
101220 switch_mm(oldmm, mm, next);
101221+ populate_stack();
101222+ }
101223
101224 if (!prev->mm) {
101225 prev->active_mm = NULL;
101226@@ -3124,6 +3126,8 @@ int can_nice(const struct task_struct *p, const int nice)
101227 /* convert nice value [19,-20] to rlimit style value [1,40] */
101228 int nice_rlim = nice_to_rlimit(nice);
101229
101230+ gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
101231+
101232 return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
101233 capable(CAP_SYS_NICE));
101234 }
101235@@ -3150,7 +3154,8 @@ SYSCALL_DEFINE1(nice, int, increment)
101236 nice = task_nice(current) + increment;
101237
101238 nice = clamp_val(nice, MIN_NICE, MAX_NICE);
101239- if (increment < 0 && !can_nice(current, nice))
101240+ if (increment < 0 && (!can_nice(current, nice) ||
101241+ gr_handle_chroot_nice()))
101242 return -EPERM;
101243
101244 retval = security_task_setnice(current, nice);
101245@@ -3459,6 +3464,7 @@ recheck:
101246 if (policy != p->policy && !rlim_rtprio)
101247 return -EPERM;
101248
101249+ gr_learn_resource(p, RLIMIT_RTPRIO, attr->sched_priority, 1);
101250 /* can't increase priority */
101251 if (attr->sched_priority > p->rt_priority &&
101252 attr->sched_priority > rlim_rtprio)
101253@@ -4946,6 +4952,7 @@ void idle_task_exit(void)
101254
101255 if (mm != &init_mm) {
101256 switch_mm(mm, &init_mm, current);
101257+ populate_stack();
101258 finish_arch_post_lock_switch();
101259 }
101260 mmdrop(mm);
101261@@ -5041,7 +5048,7 @@ static void migrate_tasks(unsigned int dead_cpu)
101262
101263 #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL)
101264
101265-static struct ctl_table sd_ctl_dir[] = {
101266+static ctl_table_no_const sd_ctl_dir[] __read_only = {
101267 {
101268 .procname = "sched_domain",
101269 .mode = 0555,
101270@@ -5058,17 +5065,17 @@ static struct ctl_table sd_ctl_root[] = {
101271 {}
101272 };
101273
101274-static struct ctl_table *sd_alloc_ctl_entry(int n)
101275+static ctl_table_no_const *sd_alloc_ctl_entry(int n)
101276 {
101277- struct ctl_table *entry =
101278+ ctl_table_no_const *entry =
101279 kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
101280
101281 return entry;
101282 }
101283
101284-static void sd_free_ctl_entry(struct ctl_table **tablep)
101285+static void sd_free_ctl_entry(ctl_table_no_const *tablep)
101286 {
101287- struct ctl_table *entry;
101288+ ctl_table_no_const *entry;
101289
101290 /*
101291 * In the intermediate directories, both the child directory and
101292@@ -5076,22 +5083,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
101293 * will always be set. In the lowest directory the names are
101294 * static strings and all have proc handlers.
101295 */
101296- for (entry = *tablep; entry->mode; entry++) {
101297- if (entry->child)
101298- sd_free_ctl_entry(&entry->child);
101299+ for (entry = tablep; entry->mode; entry++) {
101300+ if (entry->child) {
101301+ sd_free_ctl_entry(entry->child);
101302+ pax_open_kernel();
101303+ entry->child = NULL;
101304+ pax_close_kernel();
101305+ }
101306 if (entry->proc_handler == NULL)
101307 kfree(entry->procname);
101308 }
101309
101310- kfree(*tablep);
101311- *tablep = NULL;
101312+ kfree(tablep);
101313 }
101314
101315 static int min_load_idx = 0;
101316 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
101317
101318 static void
101319-set_table_entry(struct ctl_table *entry,
101320+set_table_entry(ctl_table_no_const *entry,
101321 const char *procname, void *data, int maxlen,
101322 umode_t mode, proc_handler *proc_handler,
101323 bool load_idx)
101324@@ -5111,7 +5121,7 @@ set_table_entry(struct ctl_table *entry,
101325 static struct ctl_table *
101326 sd_alloc_ctl_domain_table(struct sched_domain *sd)
101327 {
101328- struct ctl_table *table = sd_alloc_ctl_entry(14);
101329+ ctl_table_no_const *table = sd_alloc_ctl_entry(14);
101330
101331 if (table == NULL)
101332 return NULL;
101333@@ -5149,9 +5159,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
101334 return table;
101335 }
101336
101337-static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
101338+static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
101339 {
101340- struct ctl_table *entry, *table;
101341+ ctl_table_no_const *entry, *table;
101342 struct sched_domain *sd;
101343 int domain_num = 0, i;
101344 char buf[32];
101345@@ -5178,11 +5188,13 @@ static struct ctl_table_header *sd_sysctl_header;
101346 static void register_sched_domain_sysctl(void)
101347 {
101348 int i, cpu_num = num_possible_cpus();
101349- struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
101350+ ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
101351 char buf[32];
101352
101353 WARN_ON(sd_ctl_dir[0].child);
101354+ pax_open_kernel();
101355 sd_ctl_dir[0].child = entry;
101356+ pax_close_kernel();
101357
101358 if (entry == NULL)
101359 return;
101360@@ -5205,8 +5217,12 @@ static void unregister_sched_domain_sysctl(void)
101361 if (sd_sysctl_header)
101362 unregister_sysctl_table(sd_sysctl_header);
101363 sd_sysctl_header = NULL;
101364- if (sd_ctl_dir[0].child)
101365- sd_free_ctl_entry(&sd_ctl_dir[0].child);
101366+ if (sd_ctl_dir[0].child) {
101367+ sd_free_ctl_entry(sd_ctl_dir[0].child);
101368+ pax_open_kernel();
101369+ sd_ctl_dir[0].child = NULL;
101370+ pax_close_kernel();
101371+ }
101372 }
101373 #else
101374 static void register_sched_domain_sysctl(void)
101375diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
101376index 241213b..6a64c91 100644
101377--- a/kernel/sched/fair.c
101378+++ b/kernel/sched/fair.c
101379@@ -2092,7 +2092,7 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
101380
101381 static void reset_ptenuma_scan(struct task_struct *p)
101382 {
101383- ACCESS_ONCE(p->mm->numa_scan_seq)++;
101384+ ACCESS_ONCE_RW(p->mm->numa_scan_seq)++;
101385 p->mm->numa_scan_offset = 0;
101386 }
101387
101388@@ -7656,7 +7656,7 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
101389 * run_rebalance_domains is triggered when needed from the scheduler tick.
101390 * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
101391 */
101392-static void run_rebalance_domains(struct softirq_action *h)
101393+static __latent_entropy void run_rebalance_domains(void)
101394 {
101395 struct rq *this_rq = this_rq();
101396 enum cpu_idle_type idle = this_rq->idle_balance ?
101397diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
101398index dc0f435..ae2e085 100644
101399--- a/kernel/sched/sched.h
101400+++ b/kernel/sched/sched.h
101401@@ -1200,7 +1200,7 @@ struct sched_class {
101402 #ifdef CONFIG_FAIR_GROUP_SCHED
101403 void (*task_move_group) (struct task_struct *p, int on_rq);
101404 #endif
101405-};
101406+} __do_const;
101407
101408 static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
101409 {
101410diff --git a/kernel/signal.c b/kernel/signal.c
101411index a390499..ebe9a21 100644
101412--- a/kernel/signal.c
101413+++ b/kernel/signal.c
101414@@ -53,12 +53,12 @@ static struct kmem_cache *sigqueue_cachep;
101415
101416 int print_fatal_signals __read_mostly;
101417
101418-static void __user *sig_handler(struct task_struct *t, int sig)
101419+static __sighandler_t sig_handler(struct task_struct *t, int sig)
101420 {
101421 return t->sighand->action[sig - 1].sa.sa_handler;
101422 }
101423
101424-static int sig_handler_ignored(void __user *handler, int sig)
101425+static int sig_handler_ignored(__sighandler_t handler, int sig)
101426 {
101427 /* Is it explicitly or implicitly ignored? */
101428 return handler == SIG_IGN ||
101429@@ -67,7 +67,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
101430
101431 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
101432 {
101433- void __user *handler;
101434+ __sighandler_t handler;
101435
101436 handler = sig_handler(t, sig);
101437
101438@@ -372,6 +372,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
101439 atomic_inc(&user->sigpending);
101440 rcu_read_unlock();
101441
101442+ if (!override_rlimit)
101443+ gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
101444+
101445 if (override_rlimit ||
101446 atomic_read(&user->sigpending) <=
101447 task_rlimit(t, RLIMIT_SIGPENDING)) {
101448@@ -499,7 +502,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
101449
101450 int unhandled_signal(struct task_struct *tsk, int sig)
101451 {
101452- void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
101453+ __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
101454 if (is_global_init(tsk))
101455 return 1;
101456 if (handler != SIG_IGN && handler != SIG_DFL)
101457@@ -793,6 +796,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
101458 }
101459 }
101460
101461+ /* allow glibc communication via tgkill to other threads in our
101462+ thread group */
101463+ if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
101464+ sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
101465+ && gr_handle_signal(t, sig))
101466+ return -EPERM;
101467+
101468 return security_task_kill(t, info, sig, 0);
101469 }
101470
101471@@ -1176,7 +1186,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
101472 return send_signal(sig, info, p, 1);
101473 }
101474
101475-static int
101476+int
101477 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101478 {
101479 return send_signal(sig, info, t, 0);
101480@@ -1213,6 +1223,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101481 unsigned long int flags;
101482 int ret, blocked, ignored;
101483 struct k_sigaction *action;
101484+ int is_unhandled = 0;
101485
101486 spin_lock_irqsave(&t->sighand->siglock, flags);
101487 action = &t->sighand->action[sig-1];
101488@@ -1227,9 +1238,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101489 }
101490 if (action->sa.sa_handler == SIG_DFL)
101491 t->signal->flags &= ~SIGNAL_UNKILLABLE;
101492+ if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
101493+ is_unhandled = 1;
101494 ret = specific_send_sig_info(sig, info, t);
101495 spin_unlock_irqrestore(&t->sighand->siglock, flags);
101496
101497+ /* only deal with unhandled signals, java etc trigger SIGSEGV during
101498+ normal operation */
101499+ if (is_unhandled) {
101500+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
101501+ gr_handle_crash(t, sig);
101502+ }
101503+
101504 return ret;
101505 }
101506
101507@@ -1310,8 +1330,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
101508 ret = check_kill_permission(sig, info, p);
101509 rcu_read_unlock();
101510
101511- if (!ret && sig)
101512+ if (!ret && sig) {
101513 ret = do_send_sig_info(sig, info, p, true);
101514+ if (!ret)
101515+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
101516+ }
101517
101518 return ret;
101519 }
101520@@ -2915,7 +2938,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
101521 int error = -ESRCH;
101522
101523 rcu_read_lock();
101524- p = find_task_by_vpid(pid);
101525+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
101526+ /* allow glibc communication via tgkill to other threads in our
101527+ thread group */
101528+ if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
101529+ sig == (SIGRTMIN+1) && tgid == info->si_pid)
101530+ p = find_task_by_vpid_unrestricted(pid);
101531+ else
101532+#endif
101533+ p = find_task_by_vpid(pid);
101534 if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
101535 error = check_kill_permission(sig, info, p);
101536 /*
101537@@ -3248,8 +3279,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
101538 }
101539 seg = get_fs();
101540 set_fs(KERNEL_DS);
101541- ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
101542- (stack_t __force __user *) &uoss,
101543+ ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
101544+ (stack_t __force_user *) &uoss,
101545 compat_user_stack_pointer());
101546 set_fs(seg);
101547 if (ret >= 0 && uoss_ptr) {
101548diff --git a/kernel/smpboot.c b/kernel/smpboot.c
101549index 40190f2..8861d40 100644
101550--- a/kernel/smpboot.c
101551+++ b/kernel/smpboot.c
101552@@ -290,7 +290,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
101553 }
101554 smpboot_unpark_thread(plug_thread, cpu);
101555 }
101556- list_add(&plug_thread->list, &hotplug_threads);
101557+ pax_list_add(&plug_thread->list, &hotplug_threads);
101558 out:
101559 mutex_unlock(&smpboot_threads_lock);
101560 put_online_cpus();
101561@@ -308,7 +308,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
101562 {
101563 get_online_cpus();
101564 mutex_lock(&smpboot_threads_lock);
101565- list_del(&plug_thread->list);
101566+ pax_list_del(&plug_thread->list);
101567 smpboot_destroy_threads(plug_thread);
101568 mutex_unlock(&smpboot_threads_lock);
101569 put_online_cpus();
101570diff --git a/kernel/softirq.c b/kernel/softirq.c
101571index 479e443..66d845e1 100644
101572--- a/kernel/softirq.c
101573+++ b/kernel/softirq.c
101574@@ -53,7 +53,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
101575 EXPORT_SYMBOL(irq_stat);
101576 #endif
101577
101578-static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
101579+static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
101580
101581 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
101582
101583@@ -270,7 +270,7 @@ restart:
101584 kstat_incr_softirqs_this_cpu(vec_nr);
101585
101586 trace_softirq_entry(vec_nr);
101587- h->action(h);
101588+ h->action();
101589 trace_softirq_exit(vec_nr);
101590 if (unlikely(prev_count != preempt_count())) {
101591 pr_err("huh, entered softirq %u %s %p with preempt_count %08x, exited with %08x?\n",
101592@@ -430,7 +430,7 @@ void __raise_softirq_irqoff(unsigned int nr)
101593 or_softirq_pending(1UL << nr);
101594 }
101595
101596-void open_softirq(int nr, void (*action)(struct softirq_action *))
101597+void __init open_softirq(int nr, void (*action)(void))
101598 {
101599 softirq_vec[nr].action = action;
101600 }
101601@@ -482,7 +482,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
101602 }
101603 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
101604
101605-static void tasklet_action(struct softirq_action *a)
101606+static void tasklet_action(void)
101607 {
101608 struct tasklet_struct *list;
101609
101610@@ -518,7 +518,7 @@ static void tasklet_action(struct softirq_action *a)
101611 }
101612 }
101613
101614-static void tasklet_hi_action(struct softirq_action *a)
101615+static __latent_entropy void tasklet_hi_action(void)
101616 {
101617 struct tasklet_struct *list;
101618
101619@@ -744,7 +744,7 @@ static struct notifier_block cpu_nfb = {
101620 .notifier_call = cpu_callback
101621 };
101622
101623-static struct smp_hotplug_thread softirq_threads = {
101624+static struct smp_hotplug_thread softirq_threads __read_only = {
101625 .store = &ksoftirqd,
101626 .thread_should_run = ksoftirqd_should_run,
101627 .thread_fn = run_ksoftirqd,
101628diff --git a/kernel/sys.c b/kernel/sys.c
101629index a03d9cd..55dbe9c 100644
101630--- a/kernel/sys.c
101631+++ b/kernel/sys.c
101632@@ -160,6 +160,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
101633 error = -EACCES;
101634 goto out;
101635 }
101636+
101637+ if (gr_handle_chroot_setpriority(p, niceval)) {
101638+ error = -EACCES;
101639+ goto out;
101640+ }
101641+
101642 no_nice = security_task_setnice(p, niceval);
101643 if (no_nice) {
101644 error = no_nice;
101645@@ -365,6 +371,20 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
101646 goto error;
101647 }
101648
101649+ if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
101650+ goto error;
101651+
101652+ if (!gid_eq(new->gid, old->gid)) {
101653+ /* make sure we generate a learn log for what will
101654+ end up being a role transition after a full-learning
101655+ policy is generated
101656+ CAP_SETGID is required to perform a transition
101657+ we may not log a CAP_SETGID check above, e.g.
101658+ in the case where new rgid = old egid
101659+ */
101660+ gr_learn_cap(current, new, CAP_SETGID);
101661+ }
101662+
101663 if (rgid != (gid_t) -1 ||
101664 (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
101665 new->sgid = new->egid;
101666@@ -400,6 +420,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
101667 old = current_cred();
101668
101669 retval = -EPERM;
101670+
101671+ if (gr_check_group_change(kgid, kgid, kgid))
101672+ goto error;
101673+
101674 if (ns_capable(old->user_ns, CAP_SETGID))
101675 new->gid = new->egid = new->sgid = new->fsgid = kgid;
101676 else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
101677@@ -417,7 +441,7 @@ error:
101678 /*
101679 * change the user struct in a credentials set to match the new UID
101680 */
101681-static int set_user(struct cred *new)
101682+int set_user(struct cred *new)
101683 {
101684 struct user_struct *new_user;
101685
101686@@ -497,7 +521,18 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
101687 goto error;
101688 }
101689
101690+ if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
101691+ goto error;
101692+
101693 if (!uid_eq(new->uid, old->uid)) {
101694+ /* make sure we generate a learn log for what will
101695+ end up being a role transition after a full-learning
101696+ policy is generated
101697+ CAP_SETUID is required to perform a transition
101698+ we may not log a CAP_SETUID check above, e.g.
101699+ in the case where new ruid = old euid
101700+ */
101701+ gr_learn_cap(current, new, CAP_SETUID);
101702 retval = set_user(new);
101703 if (retval < 0)
101704 goto error;
101705@@ -547,6 +582,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
101706 old = current_cred();
101707
101708 retval = -EPERM;
101709+
101710+ if (gr_check_crash_uid(kuid))
101711+ goto error;
101712+ if (gr_check_user_change(kuid, kuid, kuid))
101713+ goto error;
101714+
101715 if (ns_capable(old->user_ns, CAP_SETUID)) {
101716 new->suid = new->uid = kuid;
101717 if (!uid_eq(kuid, old->uid)) {
101718@@ -616,6 +657,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
101719 goto error;
101720 }
101721
101722+ if (gr_check_user_change(kruid, keuid, INVALID_UID))
101723+ goto error;
101724+
101725 if (ruid != (uid_t) -1) {
101726 new->uid = kruid;
101727 if (!uid_eq(kruid, old->uid)) {
101728@@ -700,6 +744,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
101729 goto error;
101730 }
101731
101732+ if (gr_check_group_change(krgid, kegid, INVALID_GID))
101733+ goto error;
101734+
101735 if (rgid != (gid_t) -1)
101736 new->gid = krgid;
101737 if (egid != (gid_t) -1)
101738@@ -764,12 +811,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
101739 uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
101740 ns_capable(old->user_ns, CAP_SETUID)) {
101741 if (!uid_eq(kuid, old->fsuid)) {
101742+ if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
101743+ goto error;
101744+
101745 new->fsuid = kuid;
101746 if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
101747 goto change_okay;
101748 }
101749 }
101750
101751+error:
101752 abort_creds(new);
101753 return old_fsuid;
101754
101755@@ -802,12 +853,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
101756 if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->egid) ||
101757 gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
101758 ns_capable(old->user_ns, CAP_SETGID)) {
101759+ if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
101760+ goto error;
101761+
101762 if (!gid_eq(kgid, old->fsgid)) {
101763 new->fsgid = kgid;
101764 goto change_okay;
101765 }
101766 }
101767
101768+error:
101769 abort_creds(new);
101770 return old_fsgid;
101771
101772@@ -1185,19 +1240,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
101773 return -EFAULT;
101774
101775 down_read(&uts_sem);
101776- error = __copy_to_user(&name->sysname, &utsname()->sysname,
101777+ error = __copy_to_user(name->sysname, &utsname()->sysname,
101778 __OLD_UTS_LEN);
101779 error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
101780- error |= __copy_to_user(&name->nodename, &utsname()->nodename,
101781+ error |= __copy_to_user(name->nodename, &utsname()->nodename,
101782 __OLD_UTS_LEN);
101783 error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
101784- error |= __copy_to_user(&name->release, &utsname()->release,
101785+ error |= __copy_to_user(name->release, &utsname()->release,
101786 __OLD_UTS_LEN);
101787 error |= __put_user(0, name->release + __OLD_UTS_LEN);
101788- error |= __copy_to_user(&name->version, &utsname()->version,
101789+ error |= __copy_to_user(name->version, &utsname()->version,
101790 __OLD_UTS_LEN);
101791 error |= __put_user(0, name->version + __OLD_UTS_LEN);
101792- error |= __copy_to_user(&name->machine, &utsname()->machine,
101793+ error |= __copy_to_user(name->machine, &utsname()->machine,
101794 __OLD_UTS_LEN);
101795 error |= __put_user(0, name->machine + __OLD_UTS_LEN);
101796 up_read(&uts_sem);
101797@@ -1398,6 +1453,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
101798 */
101799 new_rlim->rlim_cur = 1;
101800 }
101801+ /* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
101802+ is changed to a lower value. Since tasks can be created by the same
101803+ user in between this limit change and an execve by this task, force
101804+ a recheck only for this task by setting PF_NPROC_EXCEEDED
101805+ */
101806+ if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
101807+ tsk->flags |= PF_NPROC_EXCEEDED;
101808 }
101809 if (!retval) {
101810 if (old_rlim)
101811diff --git a/kernel/sysctl.c b/kernel/sysctl.c
101812index ce410bb..cd276f0 100644
101813--- a/kernel/sysctl.c
101814+++ b/kernel/sysctl.c
101815@@ -94,7 +94,6 @@
101816
101817
101818 #if defined(CONFIG_SYSCTL)
101819-
101820 /* External variables not in a header file. */
101821 extern int max_threads;
101822 extern int suid_dumpable;
101823@@ -115,19 +114,20 @@ extern int sysctl_nr_trim_pages;
101824
101825 /* Constants used for minimum and maximum */
101826 #ifdef CONFIG_LOCKUP_DETECTOR
101827-static int sixty = 60;
101828+static int sixty __read_only = 60;
101829 #endif
101830
101831-static int __maybe_unused neg_one = -1;
101832+static int __maybe_unused neg_one __read_only = -1;
101833
101834-static int zero;
101835-static int __maybe_unused one = 1;
101836-static int __maybe_unused two = 2;
101837-static int __maybe_unused four = 4;
101838-static unsigned long one_ul = 1;
101839-static int one_hundred = 100;
101840+static int zero __read_only = 0;
101841+static int __maybe_unused one __read_only = 1;
101842+static int __maybe_unused two __read_only = 2;
101843+static int __maybe_unused three __read_only = 3;
101844+static int __maybe_unused four __read_only = 4;
101845+static unsigned long one_ul __read_only = 1;
101846+static int one_hundred __read_only = 100;
101847 #ifdef CONFIG_PRINTK
101848-static int ten_thousand = 10000;
101849+static int ten_thousand __read_only = 10000;
101850 #endif
101851
101852 /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
101853@@ -181,10 +181,8 @@ static int proc_taint(struct ctl_table *table, int write,
101854 void __user *buffer, size_t *lenp, loff_t *ppos);
101855 #endif
101856
101857-#ifdef CONFIG_PRINTK
101858 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
101859 void __user *buffer, size_t *lenp, loff_t *ppos);
101860-#endif
101861
101862 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
101863 void __user *buffer, size_t *lenp, loff_t *ppos);
101864@@ -215,6 +213,8 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write,
101865
101866 #endif
101867
101868+extern struct ctl_table grsecurity_table[];
101869+
101870 static struct ctl_table kern_table[];
101871 static struct ctl_table vm_table[];
101872 static struct ctl_table fs_table[];
101873@@ -229,6 +229,20 @@ extern struct ctl_table epoll_table[];
101874 int sysctl_legacy_va_layout;
101875 #endif
101876
101877+#ifdef CONFIG_PAX_SOFTMODE
101878+static struct ctl_table pax_table[] = {
101879+ {
101880+ .procname = "softmode",
101881+ .data = &pax_softmode,
101882+ .maxlen = sizeof(unsigned int),
101883+ .mode = 0600,
101884+ .proc_handler = &proc_dointvec,
101885+ },
101886+
101887+ { }
101888+};
101889+#endif
101890+
101891 /* The default sysctl tables: */
101892
101893 static struct ctl_table sysctl_base_table[] = {
101894@@ -277,6 +291,22 @@ static int max_extfrag_threshold = 1000;
101895 #endif
101896
101897 static struct ctl_table kern_table[] = {
101898+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
101899+ {
101900+ .procname = "grsecurity",
101901+ .mode = 0500,
101902+ .child = grsecurity_table,
101903+ },
101904+#endif
101905+
101906+#ifdef CONFIG_PAX_SOFTMODE
101907+ {
101908+ .procname = "pax",
101909+ .mode = 0500,
101910+ .child = pax_table,
101911+ },
101912+#endif
101913+
101914 {
101915 .procname = "sched_child_runs_first",
101916 .data = &sysctl_sched_child_runs_first,
101917@@ -649,7 +679,7 @@ static struct ctl_table kern_table[] = {
101918 .data = &modprobe_path,
101919 .maxlen = KMOD_PATH_LEN,
101920 .mode = 0644,
101921- .proc_handler = proc_dostring,
101922+ .proc_handler = proc_dostring_modpriv,
101923 },
101924 {
101925 .procname = "modules_disabled",
101926@@ -816,16 +846,20 @@ static struct ctl_table kern_table[] = {
101927 .extra1 = &zero,
101928 .extra2 = &one,
101929 },
101930+#endif
101931 {
101932 .procname = "kptr_restrict",
101933 .data = &kptr_restrict,
101934 .maxlen = sizeof(int),
101935 .mode = 0644,
101936 .proc_handler = proc_dointvec_minmax_sysadmin,
101937+#ifdef CONFIG_GRKERNSEC_HIDESYM
101938+ .extra1 = &two,
101939+#else
101940 .extra1 = &zero,
101941+#endif
101942 .extra2 = &two,
101943 },
101944-#endif
101945 {
101946 .procname = "ngroups_max",
101947 .data = &ngroups_max,
101948@@ -1072,10 +1106,17 @@ static struct ctl_table kern_table[] = {
101949 */
101950 {
101951 .procname = "perf_event_paranoid",
101952- .data = &sysctl_perf_event_paranoid,
101953- .maxlen = sizeof(sysctl_perf_event_paranoid),
101954+ .data = &sysctl_perf_event_legitimately_concerned,
101955+ .maxlen = sizeof(sysctl_perf_event_legitimately_concerned),
101956 .mode = 0644,
101957- .proc_handler = proc_dointvec,
101958+ /* go ahead, be a hero */
101959+ .proc_handler = proc_dointvec_minmax_sysadmin,
101960+ .extra1 = &neg_one,
101961+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
101962+ .extra2 = &three,
101963+#else
101964+ .extra2 = &two,
101965+#endif
101966 },
101967 {
101968 .procname = "perf_event_mlock_kb",
101969@@ -1348,6 +1389,13 @@ static struct ctl_table vm_table[] = {
101970 .proc_handler = proc_dointvec_minmax,
101971 .extra1 = &zero,
101972 },
101973+ {
101974+ .procname = "heap_stack_gap",
101975+ .data = &sysctl_heap_stack_gap,
101976+ .maxlen = sizeof(sysctl_heap_stack_gap),
101977+ .mode = 0644,
101978+ .proc_handler = proc_doulongvec_minmax,
101979+ },
101980 #else
101981 {
101982 .procname = "nr_trim_pages",
101983@@ -1830,6 +1878,16 @@ int proc_dostring(struct ctl_table *table, int write,
101984 (char __user *)buffer, lenp, ppos);
101985 }
101986
101987+int proc_dostring_modpriv(struct ctl_table *table, int write,
101988+ void __user *buffer, size_t *lenp, loff_t *ppos)
101989+{
101990+ if (write && !capable(CAP_SYS_MODULE))
101991+ return -EPERM;
101992+
101993+ return _proc_do_string(table->data, table->maxlen, write,
101994+ buffer, lenp, ppos);
101995+}
101996+
101997 static size_t proc_skip_spaces(char **buf)
101998 {
101999 size_t ret;
102000@@ -1935,6 +1993,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
102001 len = strlen(tmp);
102002 if (len > *size)
102003 len = *size;
102004+ if (len > sizeof(tmp))
102005+ len = sizeof(tmp);
102006 if (copy_to_user(*buf, tmp, len))
102007 return -EFAULT;
102008 *size -= len;
102009@@ -2112,7 +2172,7 @@ int proc_dointvec(struct ctl_table *table, int write,
102010 static int proc_taint(struct ctl_table *table, int write,
102011 void __user *buffer, size_t *lenp, loff_t *ppos)
102012 {
102013- struct ctl_table t;
102014+ ctl_table_no_const t;
102015 unsigned long tmptaint = get_taint();
102016 int err;
102017
102018@@ -2140,7 +2200,6 @@ static int proc_taint(struct ctl_table *table, int write,
102019 return err;
102020 }
102021
102022-#ifdef CONFIG_PRINTK
102023 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
102024 void __user *buffer, size_t *lenp, loff_t *ppos)
102025 {
102026@@ -2149,7 +2208,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
102027
102028 return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
102029 }
102030-#endif
102031
102032 struct do_proc_dointvec_minmax_conv_param {
102033 int *min;
102034@@ -2709,6 +2767,12 @@ int proc_dostring(struct ctl_table *table, int write,
102035 return -ENOSYS;
102036 }
102037
102038+int proc_dostring_modpriv(struct ctl_table *table, int write,
102039+ void __user *buffer, size_t *lenp, loff_t *ppos)
102040+{
102041+ return -ENOSYS;
102042+}
102043+
102044 int proc_dointvec(struct ctl_table *table, int write,
102045 void __user *buffer, size_t *lenp, loff_t *ppos)
102046 {
102047@@ -2765,5 +2829,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
102048 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
102049 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
102050 EXPORT_SYMBOL(proc_dostring);
102051+EXPORT_SYMBOL(proc_dostring_modpriv);
102052 EXPORT_SYMBOL(proc_doulongvec_minmax);
102053 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
102054diff --git a/kernel/taskstats.c b/kernel/taskstats.c
102055index 21f82c2..c1984e5 100644
102056--- a/kernel/taskstats.c
102057+++ b/kernel/taskstats.c
102058@@ -28,9 +28,12 @@
102059 #include <linux/fs.h>
102060 #include <linux/file.h>
102061 #include <linux/pid_namespace.h>
102062+#include <linux/grsecurity.h>
102063 #include <net/genetlink.h>
102064 #include <linux/atomic.h>
102065
102066+extern int gr_is_taskstats_denied(int pid);
102067+
102068 /*
102069 * Maximum length of a cpumask that can be specified in
102070 * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
102071@@ -567,6 +570,9 @@ err:
102072
102073 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
102074 {
102075+ if (gr_is_taskstats_denied(current->pid))
102076+ return -EACCES;
102077+
102078 if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
102079 return cmd_attr_register_cpumask(info);
102080 else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
102081diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
102082index 1b001ed..55ef9e4 100644
102083--- a/kernel/time/alarmtimer.c
102084+++ b/kernel/time/alarmtimer.c
102085@@ -823,7 +823,7 @@ static int __init alarmtimer_init(void)
102086 struct platform_device *pdev;
102087 int error = 0;
102088 int i;
102089- struct k_clock alarm_clock = {
102090+ static struct k_clock alarm_clock = {
102091 .clock_getres = alarm_clock_getres,
102092 .clock_get = alarm_clock_get,
102093 .timer_create = alarm_timer_create,
102094diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
102095index bee0c1f..a23fe2d 100644
102096--- a/kernel/time/hrtimer.c
102097+++ b/kernel/time/hrtimer.c
102098@@ -1391,7 +1391,7 @@ void hrtimer_peek_ahead_timers(void)
102099 local_irq_restore(flags);
102100 }
102101
102102-static void run_hrtimer_softirq(struct softirq_action *h)
102103+static __latent_entropy void run_hrtimer_softirq(void)
102104 {
102105 hrtimer_peek_ahead_timers();
102106 }
102107diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
102108index 0075da7..63cc872 100644
102109--- a/kernel/time/posix-cpu-timers.c
102110+++ b/kernel/time/posix-cpu-timers.c
102111@@ -1449,14 +1449,14 @@ struct k_clock clock_posix_cpu = {
102112
102113 static __init int init_posix_cpu_timers(void)
102114 {
102115- struct k_clock process = {
102116+ static struct k_clock process = {
102117 .clock_getres = process_cpu_clock_getres,
102118 .clock_get = process_cpu_clock_get,
102119 .timer_create = process_cpu_timer_create,
102120 .nsleep = process_cpu_nsleep,
102121 .nsleep_restart = process_cpu_nsleep_restart,
102122 };
102123- struct k_clock thread = {
102124+ static struct k_clock thread = {
102125 .clock_getres = thread_cpu_clock_getres,
102126 .clock_get = thread_cpu_clock_get,
102127 .timer_create = thread_cpu_timer_create,
102128diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
102129index 31ea01f..7fc61ef 100644
102130--- a/kernel/time/posix-timers.c
102131+++ b/kernel/time/posix-timers.c
102132@@ -43,6 +43,7 @@
102133 #include <linux/hash.h>
102134 #include <linux/posix-clock.h>
102135 #include <linux/posix-timers.h>
102136+#include <linux/grsecurity.h>
102137 #include <linux/syscalls.h>
102138 #include <linux/wait.h>
102139 #include <linux/workqueue.h>
102140@@ -124,7 +125,7 @@ static DEFINE_SPINLOCK(hash_lock);
102141 * which we beg off on and pass to do_sys_settimeofday().
102142 */
102143
102144-static struct k_clock posix_clocks[MAX_CLOCKS];
102145+static struct k_clock *posix_clocks[MAX_CLOCKS];
102146
102147 /*
102148 * These ones are defined below.
102149@@ -277,7 +278,7 @@ static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
102150 */
102151 static __init int init_posix_timers(void)
102152 {
102153- struct k_clock clock_realtime = {
102154+ static struct k_clock clock_realtime = {
102155 .clock_getres = hrtimer_get_res,
102156 .clock_get = posix_clock_realtime_get,
102157 .clock_set = posix_clock_realtime_set,
102158@@ -289,7 +290,7 @@ static __init int init_posix_timers(void)
102159 .timer_get = common_timer_get,
102160 .timer_del = common_timer_del,
102161 };
102162- struct k_clock clock_monotonic = {
102163+ static struct k_clock clock_monotonic = {
102164 .clock_getres = hrtimer_get_res,
102165 .clock_get = posix_ktime_get_ts,
102166 .nsleep = common_nsleep,
102167@@ -299,19 +300,19 @@ static __init int init_posix_timers(void)
102168 .timer_get = common_timer_get,
102169 .timer_del = common_timer_del,
102170 };
102171- struct k_clock clock_monotonic_raw = {
102172+ static struct k_clock clock_monotonic_raw = {
102173 .clock_getres = hrtimer_get_res,
102174 .clock_get = posix_get_monotonic_raw,
102175 };
102176- struct k_clock clock_realtime_coarse = {
102177+ static struct k_clock clock_realtime_coarse = {
102178 .clock_getres = posix_get_coarse_res,
102179 .clock_get = posix_get_realtime_coarse,
102180 };
102181- struct k_clock clock_monotonic_coarse = {
102182+ static struct k_clock clock_monotonic_coarse = {
102183 .clock_getres = posix_get_coarse_res,
102184 .clock_get = posix_get_monotonic_coarse,
102185 };
102186- struct k_clock clock_tai = {
102187+ static struct k_clock clock_tai = {
102188 .clock_getres = hrtimer_get_res,
102189 .clock_get = posix_get_tai,
102190 .nsleep = common_nsleep,
102191@@ -321,7 +322,7 @@ static __init int init_posix_timers(void)
102192 .timer_get = common_timer_get,
102193 .timer_del = common_timer_del,
102194 };
102195- struct k_clock clock_boottime = {
102196+ static struct k_clock clock_boottime = {
102197 .clock_getres = hrtimer_get_res,
102198 .clock_get = posix_get_boottime,
102199 .nsleep = common_nsleep,
102200@@ -533,7 +534,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
102201 return;
102202 }
102203
102204- posix_clocks[clock_id] = *new_clock;
102205+ posix_clocks[clock_id] = new_clock;
102206 }
102207 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
102208
102209@@ -579,9 +580,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
102210 return (id & CLOCKFD_MASK) == CLOCKFD ?
102211 &clock_posix_dynamic : &clock_posix_cpu;
102212
102213- if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
102214+ if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
102215 return NULL;
102216- return &posix_clocks[id];
102217+ return posix_clocks[id];
102218 }
102219
102220 static int common_timer_create(struct k_itimer *new_timer)
102221@@ -599,7 +600,7 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
102222 struct k_clock *kc = clockid_to_kclock(which_clock);
102223 struct k_itimer *new_timer;
102224 int error, new_timer_id;
102225- sigevent_t event;
102226+ sigevent_t event = { };
102227 int it_id_set = IT_ID_NOT_SET;
102228
102229 if (!kc)
102230@@ -1014,6 +1015,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
102231 if (copy_from_user(&new_tp, tp, sizeof (*tp)))
102232 return -EFAULT;
102233
102234+ /* only the CLOCK_REALTIME clock can be set, all other clocks
102235+ have their clock_set fptr set to a nosettime dummy function
102236+ CLOCK_REALTIME has a NULL clock_set fptr which causes it to
102237+ call common_clock_set, which calls do_sys_settimeofday, which
102238+ we hook
102239+ */
102240+
102241 return kc->clock_set(which_clock, &new_tp);
102242 }
102243
102244diff --git a/kernel/time/time.c b/kernel/time/time.c
102245index 2c85b77..6530536 100644
102246--- a/kernel/time/time.c
102247+++ b/kernel/time/time.c
102248@@ -173,6 +173,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
102249 return error;
102250
102251 if (tz) {
102252+ /* we log in do_settimeofday called below, so don't log twice
102253+ */
102254+ if (!tv)
102255+ gr_log_timechange();
102256+
102257 sys_tz = *tz;
102258 update_vsyscall_tz();
102259 if (firsttime) {
102260diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
102261index 91db941..a371671 100644
102262--- a/kernel/time/timekeeping.c
102263+++ b/kernel/time/timekeeping.c
102264@@ -15,6 +15,7 @@
102265 #include <linux/init.h>
102266 #include <linux/mm.h>
102267 #include <linux/sched.h>
102268+#include <linux/grsecurity.h>
102269 #include <linux/syscore_ops.h>
102270 #include <linux/clocksource.h>
102271 #include <linux/jiffies.h>
102272@@ -802,6 +803,8 @@ int do_settimeofday64(const struct timespec64 *ts)
102273 if (!timespec64_valid_strict(ts))
102274 return -EINVAL;
102275
102276+ gr_log_timechange();
102277+
102278 raw_spin_lock_irqsave(&timekeeper_lock, flags);
102279 write_seqcount_begin(&tk_core.seq);
102280
102281diff --git a/kernel/time/timer.c b/kernel/time/timer.c
102282index 2d3f5c5..7ed7dc5 100644
102283--- a/kernel/time/timer.c
102284+++ b/kernel/time/timer.c
102285@@ -1393,7 +1393,7 @@ void update_process_times(int user_tick)
102286 /*
102287 * This function runs timers and the timer-tq in bottom half context.
102288 */
102289-static void run_timer_softirq(struct softirq_action *h)
102290+static __latent_entropy void run_timer_softirq(void)
102291 {
102292 struct tvec_base *base = __this_cpu_read(tvec_bases);
102293
102294@@ -1456,7 +1456,7 @@ static void process_timeout(unsigned long __data)
102295 *
102296 * In all cases the return value is guaranteed to be non-negative.
102297 */
102298-signed long __sched schedule_timeout(signed long timeout)
102299+signed long __sched __intentional_overflow(-1) schedule_timeout(signed long timeout)
102300 {
102301 struct timer_list timer;
102302 unsigned long expire;
102303diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
102304index 61ed862..3b52c65 100644
102305--- a/kernel/time/timer_list.c
102306+++ b/kernel/time/timer_list.c
102307@@ -45,12 +45,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
102308
102309 static void print_name_offset(struct seq_file *m, void *sym)
102310 {
102311+#ifdef CONFIG_GRKERNSEC_HIDESYM
102312+ SEQ_printf(m, "<%p>", NULL);
102313+#else
102314 char symname[KSYM_NAME_LEN];
102315
102316 if (lookup_symbol_name((unsigned long)sym, symname) < 0)
102317 SEQ_printf(m, "<%pK>", sym);
102318 else
102319 SEQ_printf(m, "%s", symname);
102320+#endif
102321 }
102322
102323 static void
102324@@ -119,7 +123,11 @@ next_one:
102325 static void
102326 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
102327 {
102328+#ifdef CONFIG_GRKERNSEC_HIDESYM
102329+ SEQ_printf(m, " .base: %p\n", NULL);
102330+#else
102331 SEQ_printf(m, " .base: %pK\n", base);
102332+#endif
102333 SEQ_printf(m, " .index: %d\n",
102334 base->index);
102335 SEQ_printf(m, " .resolution: %Lu nsecs\n",
102336@@ -362,7 +370,11 @@ static int __init init_timer_list_procfs(void)
102337 {
102338 struct proc_dir_entry *pe;
102339
102340+#ifdef CONFIG_GRKERNSEC_PROC_ADD
102341+ pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
102342+#else
102343 pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
102344+#endif
102345 if (!pe)
102346 return -ENOMEM;
102347 return 0;
102348diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
102349index 1fb08f2..ca4bb1e 100644
102350--- a/kernel/time/timer_stats.c
102351+++ b/kernel/time/timer_stats.c
102352@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
102353 static unsigned long nr_entries;
102354 static struct entry entries[MAX_ENTRIES];
102355
102356-static atomic_t overflow_count;
102357+static atomic_unchecked_t overflow_count;
102358
102359 /*
102360 * The entries are in a hash-table, for fast lookup:
102361@@ -140,7 +140,7 @@ static void reset_entries(void)
102362 nr_entries = 0;
102363 memset(entries, 0, sizeof(entries));
102364 memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
102365- atomic_set(&overflow_count, 0);
102366+ atomic_set_unchecked(&overflow_count, 0);
102367 }
102368
102369 static struct entry *alloc_entry(void)
102370@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
102371 if (likely(entry))
102372 entry->count++;
102373 else
102374- atomic_inc(&overflow_count);
102375+ atomic_inc_unchecked(&overflow_count);
102376
102377 out_unlock:
102378 raw_spin_unlock_irqrestore(lock, flags);
102379@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
102380
102381 static void print_name_offset(struct seq_file *m, unsigned long addr)
102382 {
102383+#ifdef CONFIG_GRKERNSEC_HIDESYM
102384+ seq_printf(m, "<%p>", NULL);
102385+#else
102386 char symname[KSYM_NAME_LEN];
102387
102388 if (lookup_symbol_name(addr, symname) < 0)
102389- seq_printf(m, "<%p>", (void *)addr);
102390+ seq_printf(m, "<%pK>", (void *)addr);
102391 else
102392 seq_printf(m, "%s", symname);
102393+#endif
102394 }
102395
102396 static int tstats_show(struct seq_file *m, void *v)
102397@@ -300,8 +304,8 @@ static int tstats_show(struct seq_file *m, void *v)
102398
102399 seq_puts(m, "Timer Stats Version: v0.3\n");
102400 seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
102401- if (atomic_read(&overflow_count))
102402- seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
102403+ if (atomic_read_unchecked(&overflow_count))
102404+ seq_printf(m, "Overflow: %d entries\n", atomic_read_unchecked(&overflow_count));
102405 seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
102406
102407 for (i = 0; i < nr_entries; i++) {
102408@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
102409 {
102410 struct proc_dir_entry *pe;
102411
102412+#ifdef CONFIG_GRKERNSEC_PROC_ADD
102413+ pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
102414+#else
102415 pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
102416+#endif
102417 if (!pe)
102418 return -ENOMEM;
102419 return 0;
102420diff --git a/kernel/torture.c b/kernel/torture.c
102421index dd70993..0bf694b 100644
102422--- a/kernel/torture.c
102423+++ b/kernel/torture.c
102424@@ -482,7 +482,7 @@ static int torture_shutdown_notify(struct notifier_block *unused1,
102425 mutex_lock(&fullstop_mutex);
102426 if (ACCESS_ONCE(fullstop) == FULLSTOP_DONTSTOP) {
102427 VERBOSE_TOROUT_STRING("Unscheduled system shutdown detected");
102428- ACCESS_ONCE(fullstop) = FULLSTOP_SHUTDOWN;
102429+ ACCESS_ONCE_RW(fullstop) = FULLSTOP_SHUTDOWN;
102430 } else {
102431 pr_warn("Concurrent rmmod and shutdown illegal!\n");
102432 }
102433@@ -549,14 +549,14 @@ static int torture_stutter(void *arg)
102434 if (!torture_must_stop()) {
102435 if (stutter > 1) {
102436 schedule_timeout_interruptible(stutter - 1);
102437- ACCESS_ONCE(stutter_pause_test) = 2;
102438+ ACCESS_ONCE_RW(stutter_pause_test) = 2;
102439 }
102440 schedule_timeout_interruptible(1);
102441- ACCESS_ONCE(stutter_pause_test) = 1;
102442+ ACCESS_ONCE_RW(stutter_pause_test) = 1;
102443 }
102444 if (!torture_must_stop())
102445 schedule_timeout_interruptible(stutter);
102446- ACCESS_ONCE(stutter_pause_test) = 0;
102447+ ACCESS_ONCE_RW(stutter_pause_test) = 0;
102448 torture_shutdown_absorb("torture_stutter");
102449 } while (!torture_must_stop());
102450 torture_kthread_stopping("torture_stutter");
102451@@ -648,7 +648,7 @@ bool torture_cleanup_begin(void)
102452 schedule_timeout_uninterruptible(10);
102453 return true;
102454 }
102455- ACCESS_ONCE(fullstop) = FULLSTOP_RMMOD;
102456+ ACCESS_ONCE_RW(fullstop) = FULLSTOP_RMMOD;
102457 mutex_unlock(&fullstop_mutex);
102458 torture_shutdown_cleanup();
102459 torture_shuffle_cleanup();
102460diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
102461index 483cecf..ac46091 100644
102462--- a/kernel/trace/blktrace.c
102463+++ b/kernel/trace/blktrace.c
102464@@ -328,7 +328,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
102465 struct blk_trace *bt = filp->private_data;
102466 char buf[16];
102467
102468- snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
102469+ snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
102470
102471 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
102472 }
102473@@ -386,7 +386,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
102474 return 1;
102475
102476 bt = buf->chan->private_data;
102477- atomic_inc(&bt->dropped);
102478+ atomic_inc_unchecked(&bt->dropped);
102479 return 0;
102480 }
102481
102482@@ -487,7 +487,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
102483
102484 bt->dir = dir;
102485 bt->dev = dev;
102486- atomic_set(&bt->dropped, 0);
102487+ atomic_set_unchecked(&bt->dropped, 0);
102488 INIT_LIST_HEAD(&bt->running_list);
102489
102490 ret = -EIO;
102491diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
102492index 4f22802..bd268b1 100644
102493--- a/kernel/trace/ftrace.c
102494+++ b/kernel/trace/ftrace.c
102495@@ -2382,12 +2382,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
102496 if (unlikely(ftrace_disabled))
102497 return 0;
102498
102499+ ret = ftrace_arch_code_modify_prepare();
102500+ FTRACE_WARN_ON(ret);
102501+ if (ret)
102502+ return 0;
102503+
102504 ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
102505+ FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
102506 if (ret) {
102507 ftrace_bug(ret, rec);
102508- return 0;
102509 }
102510- return 1;
102511+ return ret ? 0 : 1;
102512 }
102513
102514 /*
102515@@ -4776,8 +4781,10 @@ static int ftrace_process_locs(struct module *mod,
102516 if (!count)
102517 return 0;
102518
102519+ pax_open_kernel();
102520 sort(start, count, sizeof(*start),
102521 ftrace_cmp_ips, ftrace_swap_ips);
102522+ pax_close_kernel();
102523
102524 start_pg = ftrace_allocate_pages(count);
102525 if (!start_pg)
102526@@ -5653,7 +5660,7 @@ static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
102527
102528 if (t->ret_stack == NULL) {
102529 atomic_set(&t->tracing_graph_pause, 0);
102530- atomic_set(&t->trace_overrun, 0);
102531+ atomic_set_unchecked(&t->trace_overrun, 0);
102532 t->curr_ret_stack = -1;
102533 /* Make sure the tasks see the -1 first: */
102534 smp_wmb();
102535@@ -5876,7 +5883,7 @@ static void
102536 graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
102537 {
102538 atomic_set(&t->tracing_graph_pause, 0);
102539- atomic_set(&t->trace_overrun, 0);
102540+ atomic_set_unchecked(&t->trace_overrun, 0);
102541 t->ftrace_timestamp = 0;
102542 /* make curr_ret_stack visible before we add the ret_stack */
102543 smp_wmb();
102544diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
102545index 922048a..bb71a55 100644
102546--- a/kernel/trace/ring_buffer.c
102547+++ b/kernel/trace/ring_buffer.c
102548@@ -348,9 +348,9 @@ struct buffer_data_page {
102549 */
102550 struct buffer_page {
102551 struct list_head list; /* list of buffer pages */
102552- local_t write; /* index for next write */
102553+ local_unchecked_t write; /* index for next write */
102554 unsigned read; /* index for next read */
102555- local_t entries; /* entries on this page */
102556+ local_unchecked_t entries; /* entries on this page */
102557 unsigned long real_end; /* real end of data */
102558 struct buffer_data_page *page; /* Actual data page */
102559 };
102560@@ -471,11 +471,11 @@ struct ring_buffer_per_cpu {
102561 unsigned long last_overrun;
102562 local_t entries_bytes;
102563 local_t entries;
102564- local_t overrun;
102565- local_t commit_overrun;
102566- local_t dropped_events;
102567+ local_unchecked_t overrun;
102568+ local_unchecked_t commit_overrun;
102569+ local_unchecked_t dropped_events;
102570 local_t committing;
102571- local_t commits;
102572+ local_unchecked_t commits;
102573 unsigned long read;
102574 unsigned long read_bytes;
102575 u64 write_stamp;
102576@@ -1045,8 +1045,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
102577 *
102578 * We add a counter to the write field to denote this.
102579 */
102580- old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
102581- old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
102582+ old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
102583+ old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
102584
102585 /*
102586 * Just make sure we have seen our old_write and synchronize
102587@@ -1074,8 +1074,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
102588 * cmpxchg to only update if an interrupt did not already
102589 * do it for us. If the cmpxchg fails, we don't care.
102590 */
102591- (void)local_cmpxchg(&next_page->write, old_write, val);
102592- (void)local_cmpxchg(&next_page->entries, old_entries, eval);
102593+ (void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
102594+ (void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
102595
102596 /*
102597 * No need to worry about races with clearing out the commit.
102598@@ -1443,12 +1443,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
102599
102600 static inline unsigned long rb_page_entries(struct buffer_page *bpage)
102601 {
102602- return local_read(&bpage->entries) & RB_WRITE_MASK;
102603+ return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
102604 }
102605
102606 static inline unsigned long rb_page_write(struct buffer_page *bpage)
102607 {
102608- return local_read(&bpage->write) & RB_WRITE_MASK;
102609+ return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
102610 }
102611
102612 static int
102613@@ -1543,7 +1543,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages)
102614 * bytes consumed in ring buffer from here.
102615 * Increment overrun to account for the lost events.
102616 */
102617- local_add(page_entries, &cpu_buffer->overrun);
102618+ local_add_unchecked(page_entries, &cpu_buffer->overrun);
102619 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
102620 }
102621
102622@@ -2105,7 +2105,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
102623 * it is our responsibility to update
102624 * the counters.
102625 */
102626- local_add(entries, &cpu_buffer->overrun);
102627+ local_add_unchecked(entries, &cpu_buffer->overrun);
102628 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
102629
102630 /*
102631@@ -2255,7 +2255,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102632 if (tail == BUF_PAGE_SIZE)
102633 tail_page->real_end = 0;
102634
102635- local_sub(length, &tail_page->write);
102636+ local_sub_unchecked(length, &tail_page->write);
102637 return;
102638 }
102639
102640@@ -2290,7 +2290,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102641 rb_event_set_padding(event);
102642
102643 /* Set the write back to the previous setting */
102644- local_sub(length, &tail_page->write);
102645+ local_sub_unchecked(length, &tail_page->write);
102646 return;
102647 }
102648
102649@@ -2302,7 +2302,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102650
102651 /* Set write to end of buffer */
102652 length = (tail + length) - BUF_PAGE_SIZE;
102653- local_sub(length, &tail_page->write);
102654+ local_sub_unchecked(length, &tail_page->write);
102655 }
102656
102657 /*
102658@@ -2328,7 +2328,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102659 * about it.
102660 */
102661 if (unlikely(next_page == commit_page)) {
102662- local_inc(&cpu_buffer->commit_overrun);
102663+ local_inc_unchecked(&cpu_buffer->commit_overrun);
102664 goto out_reset;
102665 }
102666
102667@@ -2358,7 +2358,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102668 * this is easy, just stop here.
102669 */
102670 if (!(buffer->flags & RB_FL_OVERWRITE)) {
102671- local_inc(&cpu_buffer->dropped_events);
102672+ local_inc_unchecked(&cpu_buffer->dropped_events);
102673 goto out_reset;
102674 }
102675
102676@@ -2384,7 +2384,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102677 cpu_buffer->tail_page) &&
102678 (cpu_buffer->commit_page ==
102679 cpu_buffer->reader_page))) {
102680- local_inc(&cpu_buffer->commit_overrun);
102681+ local_inc_unchecked(&cpu_buffer->commit_overrun);
102682 goto out_reset;
102683 }
102684 }
102685@@ -2432,7 +2432,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
102686 length += RB_LEN_TIME_EXTEND;
102687
102688 tail_page = cpu_buffer->tail_page;
102689- write = local_add_return(length, &tail_page->write);
102690+ write = local_add_return_unchecked(length, &tail_page->write);
102691
102692 /* set write to only the index of the write */
102693 write &= RB_WRITE_MASK;
102694@@ -2456,7 +2456,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
102695 kmemcheck_annotate_bitfield(event, bitfield);
102696 rb_update_event(cpu_buffer, event, length, add_timestamp, delta);
102697
102698- local_inc(&tail_page->entries);
102699+ local_inc_unchecked(&tail_page->entries);
102700
102701 /*
102702 * If this is the first commit on the page, then update
102703@@ -2489,7 +2489,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102704
102705 if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
102706 unsigned long write_mask =
102707- local_read(&bpage->write) & ~RB_WRITE_MASK;
102708+ local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
102709 unsigned long event_length = rb_event_length(event);
102710 /*
102711 * This is on the tail page. It is possible that
102712@@ -2499,7 +2499,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102713 */
102714 old_index += write_mask;
102715 new_index += write_mask;
102716- index = local_cmpxchg(&bpage->write, old_index, new_index);
102717+ index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
102718 if (index == old_index) {
102719 /* update counters */
102720 local_sub(event_length, &cpu_buffer->entries_bytes);
102721@@ -2514,7 +2514,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102722 static void rb_start_commit(struct ring_buffer_per_cpu *cpu_buffer)
102723 {
102724 local_inc(&cpu_buffer->committing);
102725- local_inc(&cpu_buffer->commits);
102726+ local_inc_unchecked(&cpu_buffer->commits);
102727 }
102728
102729 static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102730@@ -2526,7 +2526,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102731 return;
102732
102733 again:
102734- commits = local_read(&cpu_buffer->commits);
102735+ commits = local_read_unchecked(&cpu_buffer->commits);
102736 /* synchronize with interrupts */
102737 barrier();
102738 if (local_read(&cpu_buffer->committing) == 1)
102739@@ -2542,7 +2542,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102740 * updating of the commit page and the clearing of the
102741 * committing counter.
102742 */
102743- if (unlikely(local_read(&cpu_buffer->commits) != commits) &&
102744+ if (unlikely(local_read_unchecked(&cpu_buffer->commits) != commits) &&
102745 !local_read(&cpu_buffer->committing)) {
102746 local_inc(&cpu_buffer->committing);
102747 goto again;
102748@@ -2572,7 +2572,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
102749 barrier();
102750 if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) {
102751 local_dec(&cpu_buffer->committing);
102752- local_dec(&cpu_buffer->commits);
102753+ local_dec_unchecked(&cpu_buffer->commits);
102754 return NULL;
102755 }
102756 #endif
102757@@ -2901,7 +2901,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
102758
102759 /* Do the likely case first */
102760 if (likely(bpage->page == (void *)addr)) {
102761- local_dec(&bpage->entries);
102762+ local_dec_unchecked(&bpage->entries);
102763 return;
102764 }
102765
102766@@ -2913,7 +2913,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
102767 start = bpage;
102768 do {
102769 if (bpage->page == (void *)addr) {
102770- local_dec(&bpage->entries);
102771+ local_dec_unchecked(&bpage->entries);
102772 return;
102773 }
102774 rb_inc_page(cpu_buffer, &bpage);
102775@@ -3197,7 +3197,7 @@ static inline unsigned long
102776 rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
102777 {
102778 return local_read(&cpu_buffer->entries) -
102779- (local_read(&cpu_buffer->overrun) + cpu_buffer->read);
102780+ (local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
102781 }
102782
102783 /**
102784@@ -3286,7 +3286,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
102785 return 0;
102786
102787 cpu_buffer = buffer->buffers[cpu];
102788- ret = local_read(&cpu_buffer->overrun);
102789+ ret = local_read_unchecked(&cpu_buffer->overrun);
102790
102791 return ret;
102792 }
102793@@ -3309,7 +3309,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
102794 return 0;
102795
102796 cpu_buffer = buffer->buffers[cpu];
102797- ret = local_read(&cpu_buffer->commit_overrun);
102798+ ret = local_read_unchecked(&cpu_buffer->commit_overrun);
102799
102800 return ret;
102801 }
102802@@ -3331,7 +3331,7 @@ ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu)
102803 return 0;
102804
102805 cpu_buffer = buffer->buffers[cpu];
102806- ret = local_read(&cpu_buffer->dropped_events);
102807+ ret = local_read_unchecked(&cpu_buffer->dropped_events);
102808
102809 return ret;
102810 }
102811@@ -3394,7 +3394,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
102812 /* if you care about this being correct, lock the buffer */
102813 for_each_buffer_cpu(buffer, cpu) {
102814 cpu_buffer = buffer->buffers[cpu];
102815- overruns += local_read(&cpu_buffer->overrun);
102816+ overruns += local_read_unchecked(&cpu_buffer->overrun);
102817 }
102818
102819 return overruns;
102820@@ -3565,8 +3565,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
102821 /*
102822 * Reset the reader page to size zero.
102823 */
102824- local_set(&cpu_buffer->reader_page->write, 0);
102825- local_set(&cpu_buffer->reader_page->entries, 0);
102826+ local_set_unchecked(&cpu_buffer->reader_page->write, 0);
102827+ local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
102828 local_set(&cpu_buffer->reader_page->page->commit, 0);
102829 cpu_buffer->reader_page->real_end = 0;
102830
102831@@ -3600,7 +3600,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
102832 * want to compare with the last_overrun.
102833 */
102834 smp_mb();
102835- overwrite = local_read(&(cpu_buffer->overrun));
102836+ overwrite = local_read_unchecked(&(cpu_buffer->overrun));
102837
102838 /*
102839 * Here's the tricky part.
102840@@ -4172,8 +4172,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
102841
102842 cpu_buffer->head_page
102843 = list_entry(cpu_buffer->pages, struct buffer_page, list);
102844- local_set(&cpu_buffer->head_page->write, 0);
102845- local_set(&cpu_buffer->head_page->entries, 0);
102846+ local_set_unchecked(&cpu_buffer->head_page->write, 0);
102847+ local_set_unchecked(&cpu_buffer->head_page->entries, 0);
102848 local_set(&cpu_buffer->head_page->page->commit, 0);
102849
102850 cpu_buffer->head_page->read = 0;
102851@@ -4183,18 +4183,18 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
102852
102853 INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
102854 INIT_LIST_HEAD(&cpu_buffer->new_pages);
102855- local_set(&cpu_buffer->reader_page->write, 0);
102856- local_set(&cpu_buffer->reader_page->entries, 0);
102857+ local_set_unchecked(&cpu_buffer->reader_page->write, 0);
102858+ local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
102859 local_set(&cpu_buffer->reader_page->page->commit, 0);
102860 cpu_buffer->reader_page->read = 0;
102861
102862 local_set(&cpu_buffer->entries_bytes, 0);
102863- local_set(&cpu_buffer->overrun, 0);
102864- local_set(&cpu_buffer->commit_overrun, 0);
102865- local_set(&cpu_buffer->dropped_events, 0);
102866+ local_set_unchecked(&cpu_buffer->overrun, 0);
102867+ local_set_unchecked(&cpu_buffer->commit_overrun, 0);
102868+ local_set_unchecked(&cpu_buffer->dropped_events, 0);
102869 local_set(&cpu_buffer->entries, 0);
102870 local_set(&cpu_buffer->committing, 0);
102871- local_set(&cpu_buffer->commits, 0);
102872+ local_set_unchecked(&cpu_buffer->commits, 0);
102873 cpu_buffer->read = 0;
102874 cpu_buffer->read_bytes = 0;
102875
102876@@ -4595,8 +4595,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
102877 rb_init_page(bpage);
102878 bpage = reader->page;
102879 reader->page = *data_page;
102880- local_set(&reader->write, 0);
102881- local_set(&reader->entries, 0);
102882+ local_set_unchecked(&reader->write, 0);
102883+ local_set_unchecked(&reader->entries, 0);
102884 reader->read = 0;
102885 *data_page = bpage;
102886
102887diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
102888index 62c6506..5c25989 100644
102889--- a/kernel/trace/trace.c
102890+++ b/kernel/trace/trace.c
102891@@ -3500,7 +3500,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
102892 return 0;
102893 }
102894
102895-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled)
102896+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled)
102897 {
102898 /* do nothing if flag is already set */
102899 if (!!(trace_flags & mask) == !!enabled)
102900diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
102901index dd8205a..1aae87a 100644
102902--- a/kernel/trace/trace.h
102903+++ b/kernel/trace/trace.h
102904@@ -1271,7 +1271,7 @@ extern const char *__stop___tracepoint_str[];
102905 void trace_printk_init_buffers(void);
102906 void trace_printk_start_comm(void);
102907 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
102908-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
102909+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled);
102910
102911 /*
102912 * Normal trace_printk() and friends allocates special buffers
102913diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
102914index 57b67b1..66082a9 100644
102915--- a/kernel/trace/trace_clock.c
102916+++ b/kernel/trace/trace_clock.c
102917@@ -124,7 +124,7 @@ u64 notrace trace_clock_global(void)
102918 return now;
102919 }
102920
102921-static atomic64_t trace_counter;
102922+static atomic64_unchecked_t trace_counter;
102923
102924 /*
102925 * trace_clock_counter(): simply an atomic counter.
102926@@ -133,5 +133,5 @@ static atomic64_t trace_counter;
102927 */
102928 u64 notrace trace_clock_counter(void)
102929 {
102930- return atomic64_add_return(1, &trace_counter);
102931+ return atomic64_inc_return_unchecked(&trace_counter);
102932 }
102933diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
102934index a9c10a3..1864f6b 100644
102935--- a/kernel/trace/trace_events.c
102936+++ b/kernel/trace/trace_events.c
102937@@ -1762,7 +1762,6 @@ __trace_early_add_new_event(struct ftrace_event_call *call,
102938 return 0;
102939 }
102940
102941-struct ftrace_module_file_ops;
102942 static void __add_event_to_tracers(struct ftrace_event_call *call);
102943
102944 /* Add an additional event_call dynamically */
102945diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
102946index b6fce36..d9f11a3 100644
102947--- a/kernel/trace/trace_functions_graph.c
102948+++ b/kernel/trace/trace_functions_graph.c
102949@@ -133,7 +133,7 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
102950
102951 /* The return trace stack is full */
102952 if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
102953- atomic_inc(&current->trace_overrun);
102954+ atomic_inc_unchecked(&current->trace_overrun);
102955 return -EBUSY;
102956 }
102957
102958@@ -230,7 +230,7 @@ ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,
102959 *ret = current->ret_stack[index].ret;
102960 trace->func = current->ret_stack[index].func;
102961 trace->calltime = current->ret_stack[index].calltime;
102962- trace->overrun = atomic_read(&current->trace_overrun);
102963+ trace->overrun = atomic_read_unchecked(&current->trace_overrun);
102964 trace->depth = index;
102965 }
102966
102967diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
102968index 7a9ba62..2e0e4a1 100644
102969--- a/kernel/trace/trace_mmiotrace.c
102970+++ b/kernel/trace/trace_mmiotrace.c
102971@@ -24,7 +24,7 @@ struct header_iter {
102972 static struct trace_array *mmio_trace_array;
102973 static bool overrun_detected;
102974 static unsigned long prev_overruns;
102975-static atomic_t dropped_count;
102976+static atomic_unchecked_t dropped_count;
102977
102978 static void mmio_reset_data(struct trace_array *tr)
102979 {
102980@@ -124,7 +124,7 @@ static void mmio_close(struct trace_iterator *iter)
102981
102982 static unsigned long count_overruns(struct trace_iterator *iter)
102983 {
102984- unsigned long cnt = atomic_xchg(&dropped_count, 0);
102985+ unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
102986 unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer);
102987
102988 if (over > prev_overruns)
102989@@ -307,7 +307,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
102990 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
102991 sizeof(*entry), 0, pc);
102992 if (!event) {
102993- atomic_inc(&dropped_count);
102994+ atomic_inc_unchecked(&dropped_count);
102995 return;
102996 }
102997 entry = ring_buffer_event_data(event);
102998@@ -337,7 +337,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
102999 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
103000 sizeof(*entry), 0, pc);
103001 if (!event) {
103002- atomic_inc(&dropped_count);
103003+ atomic_inc_unchecked(&dropped_count);
103004 return;
103005 }
103006 entry = ring_buffer_event_data(event);
103007diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
103008index 692bf71..6d9a9cd 100644
103009--- a/kernel/trace/trace_output.c
103010+++ b/kernel/trace/trace_output.c
103011@@ -751,14 +751,16 @@ int register_ftrace_event(struct trace_event *event)
103012 goto out;
103013 }
103014
103015+ pax_open_kernel();
103016 if (event->funcs->trace == NULL)
103017- event->funcs->trace = trace_nop_print;
103018+ *(void **)&event->funcs->trace = trace_nop_print;
103019 if (event->funcs->raw == NULL)
103020- event->funcs->raw = trace_nop_print;
103021+ *(void **)&event->funcs->raw = trace_nop_print;
103022 if (event->funcs->hex == NULL)
103023- event->funcs->hex = trace_nop_print;
103024+ *(void **)&event->funcs->hex = trace_nop_print;
103025 if (event->funcs->binary == NULL)
103026- event->funcs->binary = trace_nop_print;
103027+ *(void **)&event->funcs->binary = trace_nop_print;
103028+ pax_close_kernel();
103029
103030 key = event->type & (EVENT_HASHSIZE - 1);
103031
103032diff --git a/kernel/trace/trace_seq.c b/kernel/trace/trace_seq.c
103033index e694c9f..6775a38 100644
103034--- a/kernel/trace/trace_seq.c
103035+++ b/kernel/trace/trace_seq.c
103036@@ -337,7 +337,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
103037 return 0;
103038 }
103039
103040- seq_buf_path(&s->seq, path, "\n");
103041+ seq_buf_path(&s->seq, path, "\n\\");
103042
103043 if (unlikely(seq_buf_has_overflowed(&s->seq))) {
103044 s->seq.len = save_len;
103045diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
103046index c3e4fcf..ef6cc43 100644
103047--- a/kernel/trace/trace_stack.c
103048+++ b/kernel/trace/trace_stack.c
103049@@ -88,7 +88,7 @@ check_stack(unsigned long ip, unsigned long *stack)
103050 return;
103051
103052 /* we do not handle interrupt stacks yet */
103053- if (!object_is_on_stack(stack))
103054+ if (!object_starts_on_stack(stack))
103055 return;
103056
103057 local_irq_save(flags);
103058diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
103059index f97f6e3..d367b48 100644
103060--- a/kernel/trace/trace_syscalls.c
103061+++ b/kernel/trace/trace_syscalls.c
103062@@ -590,6 +590,8 @@ static int perf_sysenter_enable(struct ftrace_event_call *call)
103063 int num;
103064
103065 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103066+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103067+ return -EINVAL;
103068
103069 mutex_lock(&syscall_trace_lock);
103070 if (!sys_perf_refcount_enter)
103071@@ -610,6 +612,8 @@ static void perf_sysenter_disable(struct ftrace_event_call *call)
103072 int num;
103073
103074 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103075+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103076+ return;
103077
103078 mutex_lock(&syscall_trace_lock);
103079 sys_perf_refcount_enter--;
103080@@ -662,6 +666,8 @@ static int perf_sysexit_enable(struct ftrace_event_call *call)
103081 int num;
103082
103083 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103084+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103085+ return -EINVAL;
103086
103087 mutex_lock(&syscall_trace_lock);
103088 if (!sys_perf_refcount_exit)
103089@@ -682,6 +688,8 @@ static void perf_sysexit_disable(struct ftrace_event_call *call)
103090 int num;
103091
103092 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103093+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103094+ return;
103095
103096 mutex_lock(&syscall_trace_lock);
103097 sys_perf_refcount_exit--;
103098diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
103099index 4109f83..fe1f830 100644
103100--- a/kernel/user_namespace.c
103101+++ b/kernel/user_namespace.c
103102@@ -83,6 +83,21 @@ int create_user_ns(struct cred *new)
103103 !kgid_has_mapping(parent_ns, group))
103104 return -EPERM;
103105
103106+#ifdef CONFIG_GRKERNSEC
103107+ /*
103108+ * This doesn't really inspire confidence:
103109+ * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
103110+ * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
103111+ * Increases kernel attack surface in areas developers
103112+ * previously cared little about ("low importance due
103113+ * to requiring "root" capability")
103114+ * To be removed when this code receives *proper* review
103115+ */
103116+ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
103117+ !capable(CAP_SETGID))
103118+ return -EPERM;
103119+#endif
103120+
103121 ns = kmem_cache_zalloc(user_ns_cachep, GFP_KERNEL);
103122 if (!ns)
103123 return -ENOMEM;
103124@@ -980,7 +995,7 @@ static int userns_install(struct nsproxy *nsproxy, struct ns_common *ns)
103125 if (atomic_read(&current->mm->mm_users) > 1)
103126 return -EINVAL;
103127
103128- if (current->fs->users != 1)
103129+ if (atomic_read(&current->fs->users) != 1)
103130 return -EINVAL;
103131
103132 if (!ns_capable(user_ns, CAP_SYS_ADMIN))
103133diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
103134index c8eac43..4b5f08f 100644
103135--- a/kernel/utsname_sysctl.c
103136+++ b/kernel/utsname_sysctl.c
103137@@ -47,7 +47,7 @@ static void put_uts(struct ctl_table *table, int write, void *which)
103138 static int proc_do_uts_string(struct ctl_table *table, int write,
103139 void __user *buffer, size_t *lenp, loff_t *ppos)
103140 {
103141- struct ctl_table uts_table;
103142+ ctl_table_no_const uts_table;
103143 int r;
103144 memcpy(&uts_table, table, sizeof(uts_table));
103145 uts_table.data = get_uts(table, write);
103146diff --git a/kernel/watchdog.c b/kernel/watchdog.c
103147index 3174bf8..3553520 100644
103148--- a/kernel/watchdog.c
103149+++ b/kernel/watchdog.c
103150@@ -572,7 +572,7 @@ static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
103151 static void watchdog_nmi_disable(unsigned int cpu) { return; }
103152 #endif /* CONFIG_HARDLOCKUP_DETECTOR */
103153
103154-static struct smp_hotplug_thread watchdog_threads = {
103155+static struct smp_hotplug_thread watchdog_threads __read_only = {
103156 .store = &softlockup_watchdog,
103157 .thread_should_run = watchdog_should_run,
103158 .thread_fn = watchdog,
103159diff --git a/kernel/workqueue.c b/kernel/workqueue.c
103160index 41ff75b..5ad683a 100644
103161--- a/kernel/workqueue.c
103162+++ b/kernel/workqueue.c
103163@@ -4564,7 +4564,7 @@ static void rebind_workers(struct worker_pool *pool)
103164 WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
103165 worker_flags |= WORKER_REBOUND;
103166 worker_flags &= ~WORKER_UNBOUND;
103167- ACCESS_ONCE(worker->flags) = worker_flags;
103168+ ACCESS_ONCE_RW(worker->flags) = worker_flags;
103169 }
103170
103171 spin_unlock_irq(&pool->lock);
103172diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
103173index c5cefb3..a4241e3 100644
103174--- a/lib/Kconfig.debug
103175+++ b/lib/Kconfig.debug
103176@@ -923,7 +923,7 @@ config DEBUG_MUTEXES
103177
103178 config DEBUG_WW_MUTEX_SLOWPATH
103179 bool "Wait/wound mutex debugging: Slowpath testing"
103180- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103181+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103182 select DEBUG_LOCK_ALLOC
103183 select DEBUG_SPINLOCK
103184 select DEBUG_MUTEXES
103185@@ -940,7 +940,7 @@ config DEBUG_WW_MUTEX_SLOWPATH
103186
103187 config DEBUG_LOCK_ALLOC
103188 bool "Lock debugging: detect incorrect freeing of live locks"
103189- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103190+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103191 select DEBUG_SPINLOCK
103192 select DEBUG_MUTEXES
103193 select LOCKDEP
103194@@ -954,7 +954,7 @@ config DEBUG_LOCK_ALLOC
103195
103196 config PROVE_LOCKING
103197 bool "Lock debugging: prove locking correctness"
103198- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103199+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103200 select LOCKDEP
103201 select DEBUG_SPINLOCK
103202 select DEBUG_MUTEXES
103203@@ -1005,7 +1005,7 @@ config LOCKDEP
103204
103205 config LOCK_STAT
103206 bool "Lock usage statistics"
103207- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103208+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103209 select LOCKDEP
103210 select DEBUG_SPINLOCK
103211 select DEBUG_MUTEXES
103212@@ -1467,6 +1467,7 @@ config LATENCYTOP
103213 depends on DEBUG_KERNEL
103214 depends on STACKTRACE_SUPPORT
103215 depends on PROC_FS
103216+ depends on !GRKERNSEC_HIDESYM
103217 select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
103218 select KALLSYMS
103219 select KALLSYMS_ALL
103220@@ -1483,7 +1484,7 @@ config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
103221 config DEBUG_STRICT_USER_COPY_CHECKS
103222 bool "Strict user copy size checks"
103223 depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
103224- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
103225+ depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
103226 help
103227 Enabling this option turns a certain set of sanity checks for user
103228 copy operations into compile time failures.
103229@@ -1614,7 +1615,7 @@ endmenu # runtime tests
103230
103231 config PROVIDE_OHCI1394_DMA_INIT
103232 bool "Remote debugging over FireWire early on boot"
103233- depends on PCI && X86
103234+ depends on PCI && X86 && !GRKERNSEC
103235 help
103236 If you want to debug problems which hang or crash the kernel early
103237 on boot and the crashing machine has a FireWire port, you can use
103238diff --git a/lib/Makefile b/lib/Makefile
103239index 58f74d2..08e011f 100644
103240--- a/lib/Makefile
103241+++ b/lib/Makefile
103242@@ -59,7 +59,7 @@ obj-$(CONFIG_BTREE) += btree.o
103243 obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
103244 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
103245 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
103246-obj-$(CONFIG_DEBUG_LIST) += list_debug.o
103247+obj-y += list_debug.o
103248 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
103249
103250 ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
103251diff --git a/lib/average.c b/lib/average.c
103252index 114d1be..ab0350c 100644
103253--- a/lib/average.c
103254+++ b/lib/average.c
103255@@ -55,7 +55,7 @@ struct ewma *ewma_add(struct ewma *avg, unsigned long val)
103256 {
103257 unsigned long internal = ACCESS_ONCE(avg->internal);
103258
103259- ACCESS_ONCE(avg->internal) = internal ?
103260+ ACCESS_ONCE_RW(avg->internal) = internal ?
103261 (((internal << avg->weight) - internal) +
103262 (val << avg->factor)) >> avg->weight :
103263 (val << avg->factor);
103264diff --git a/lib/bitmap.c b/lib/bitmap.c
103265index d456f4c1..29a0308 100644
103266--- a/lib/bitmap.c
103267+++ b/lib/bitmap.c
103268@@ -264,7 +264,7 @@ int __bitmap_subset(const unsigned long *bitmap1,
103269 }
103270 EXPORT_SYMBOL(__bitmap_subset);
103271
103272-int __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
103273+int __intentional_overflow(-1) __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
103274 {
103275 unsigned int k, lim = bits/BITS_PER_LONG;
103276 int w = 0;
103277@@ -391,7 +391,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
103278 {
103279 int c, old_c, totaldigits, ndigits, nchunks, nbits;
103280 u32 chunk;
103281- const char __user __force *ubuf = (const char __user __force *)buf;
103282+ const char __user *ubuf = (const char __force_user *)buf;
103283
103284 bitmap_zero(maskp, nmaskbits);
103285
103286@@ -476,7 +476,7 @@ int bitmap_parse_user(const char __user *ubuf,
103287 {
103288 if (!access_ok(VERIFY_READ, ubuf, ulen))
103289 return -EFAULT;
103290- return __bitmap_parse((const char __force *)ubuf,
103291+ return __bitmap_parse((const char __force_kernel *)ubuf,
103292 ulen, 1, maskp, nmaskbits);
103293
103294 }
103295@@ -535,7 +535,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
103296 {
103297 unsigned a, b;
103298 int c, old_c, totaldigits;
103299- const char __user __force *ubuf = (const char __user __force *)buf;
103300+ const char __user *ubuf = (const char __force_user *)buf;
103301 int exp_digit, in_range;
103302
103303 totaldigits = c = 0;
103304@@ -630,7 +630,7 @@ int bitmap_parselist_user(const char __user *ubuf,
103305 {
103306 if (!access_ok(VERIFY_READ, ubuf, ulen))
103307 return -EFAULT;
103308- return __bitmap_parselist((const char __force *)ubuf,
103309+ return __bitmap_parselist((const char __force_kernel *)ubuf,
103310 ulen, 1, maskp, nmaskbits);
103311 }
103312 EXPORT_SYMBOL(bitmap_parselist_user);
103313diff --git a/lib/bug.c b/lib/bug.c
103314index 0c3bd95..5a615a1 100644
103315--- a/lib/bug.c
103316+++ b/lib/bug.c
103317@@ -145,6 +145,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
103318 return BUG_TRAP_TYPE_NONE;
103319
103320 bug = find_bug(bugaddr);
103321+ if (!bug)
103322+ return BUG_TRAP_TYPE_NONE;
103323
103324 file = NULL;
103325 line = 0;
103326diff --git a/lib/debugobjects.c b/lib/debugobjects.c
103327index 547f7f9..a6d4ba0 100644
103328--- a/lib/debugobjects.c
103329+++ b/lib/debugobjects.c
103330@@ -289,7 +289,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
103331 if (limit > 4)
103332 return;
103333
103334- is_on_stack = object_is_on_stack(addr);
103335+ is_on_stack = object_starts_on_stack(addr);
103336 if (is_on_stack == onstack)
103337 return;
103338
103339diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
103340index 6dd0335..1e9c239 100644
103341--- a/lib/decompress_bunzip2.c
103342+++ b/lib/decompress_bunzip2.c
103343@@ -665,7 +665,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, long len,
103344
103345 /* Fourth byte (ascii '1'-'9'), indicates block size in units of 100k of
103346 uncompressed data. Allocate intermediate buffer for block. */
103347- bd->dbufSize = 100000*(i-BZh0);
103348+ i -= BZh0;
103349+ bd->dbufSize = 100000 * i;
103350
103351 bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
103352 if (!bd->dbuf)
103353diff --git a/lib/div64.c b/lib/div64.c
103354index 4382ad7..08aa558 100644
103355--- a/lib/div64.c
103356+++ b/lib/div64.c
103357@@ -59,7 +59,7 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
103358 EXPORT_SYMBOL(__div64_32);
103359
103360 #ifndef div_s64_rem
103361-s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
103362+s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
103363 {
103364 u64 quotient;
103365
103366@@ -130,7 +130,7 @@ EXPORT_SYMBOL(div64_u64_rem);
103367 * 'http://www.hackersdelight.org/HDcode/newCode/divDouble.c.txt'
103368 */
103369 #ifndef div64_u64
103370-u64 div64_u64(u64 dividend, u64 divisor)
103371+u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
103372 {
103373 u32 high = divisor >> 32;
103374 u64 quot;
103375diff --git a/lib/dma-debug.c b/lib/dma-debug.c
103376index 9722bd2..0d826f4 100644
103377--- a/lib/dma-debug.c
103378+++ b/lib/dma-debug.c
103379@@ -979,7 +979,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
103380
103381 void dma_debug_add_bus(struct bus_type *bus)
103382 {
103383- struct notifier_block *nb;
103384+ notifier_block_no_const *nb;
103385
103386 if (dma_debug_disabled())
103387 return;
103388@@ -1161,7 +1161,7 @@ static void check_unmap(struct dma_debug_entry *ref)
103389
103390 static void check_for_stack(struct device *dev, void *addr)
103391 {
103392- if (object_is_on_stack(addr))
103393+ if (object_starts_on_stack(addr))
103394 err_printk(dev, NULL, "DMA-API: device driver maps memory from "
103395 "stack [addr=%p]\n", addr);
103396 }
103397diff --git a/lib/inflate.c b/lib/inflate.c
103398index 013a761..c28f3fc 100644
103399--- a/lib/inflate.c
103400+++ b/lib/inflate.c
103401@@ -269,7 +269,7 @@ static void free(void *where)
103402 malloc_ptr = free_mem_ptr;
103403 }
103404 #else
103405-#define malloc(a) kmalloc(a, GFP_KERNEL)
103406+#define malloc(a) kmalloc((a), GFP_KERNEL)
103407 #define free(a) kfree(a)
103408 #endif
103409
103410diff --git a/lib/ioremap.c b/lib/ioremap.c
103411index 0c9216c..863bd89 100644
103412--- a/lib/ioremap.c
103413+++ b/lib/ioremap.c
103414@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
103415 unsigned long next;
103416
103417 phys_addr -= addr;
103418- pmd = pmd_alloc(&init_mm, pud, addr);
103419+ pmd = pmd_alloc_kernel(&init_mm, pud, addr);
103420 if (!pmd)
103421 return -ENOMEM;
103422 do {
103423@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
103424 unsigned long next;
103425
103426 phys_addr -= addr;
103427- pud = pud_alloc(&init_mm, pgd, addr);
103428+ pud = pud_alloc_kernel(&init_mm, pgd, addr);
103429 if (!pud)
103430 return -ENOMEM;
103431 do {
103432diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
103433index bd2bea9..6b3c95e 100644
103434--- a/lib/is_single_threaded.c
103435+++ b/lib/is_single_threaded.c
103436@@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
103437 struct task_struct *p, *t;
103438 bool ret;
103439
103440+ if (!mm)
103441+ return true;
103442+
103443 if (atomic_read(&task->signal->live) != 1)
103444 return false;
103445
103446diff --git a/lib/kobject.c b/lib/kobject.c
103447index 03d4ab3..46f6374 100644
103448--- a/lib/kobject.c
103449+++ b/lib/kobject.c
103450@@ -931,9 +931,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
103451
103452
103453 static DEFINE_SPINLOCK(kobj_ns_type_lock);
103454-static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
103455+static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
103456
103457-int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
103458+int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
103459 {
103460 enum kobj_ns_type type = ops->type;
103461 int error;
103462diff --git a/lib/list_debug.c b/lib/list_debug.c
103463index c24c2f7..f0296f4 100644
103464--- a/lib/list_debug.c
103465+++ b/lib/list_debug.c
103466@@ -11,7 +11,9 @@
103467 #include <linux/bug.h>
103468 #include <linux/kernel.h>
103469 #include <linux/rculist.h>
103470+#include <linux/mm.h>
103471
103472+#ifdef CONFIG_DEBUG_LIST
103473 /*
103474 * Insert a new entry between two known consecutive entries.
103475 *
103476@@ -19,21 +21,40 @@
103477 * the prev/next entries already!
103478 */
103479
103480+static bool __list_add_debug(struct list_head *new,
103481+ struct list_head *prev,
103482+ struct list_head *next)
103483+{
103484+ if (unlikely(next->prev != prev)) {
103485+ printk(KERN_ERR "list_add corruption. next->prev should be "
103486+ "prev (%p), but was %p. (next=%p).\n",
103487+ prev, next->prev, next);
103488+ BUG();
103489+ return false;
103490+ }
103491+ if (unlikely(prev->next != next)) {
103492+ printk(KERN_ERR "list_add corruption. prev->next should be "
103493+ "next (%p), but was %p. (prev=%p).\n",
103494+ next, prev->next, prev);
103495+ BUG();
103496+ return false;
103497+ }
103498+ if (unlikely(new == prev || new == next)) {
103499+ printk(KERN_ERR "list_add double add: new=%p, prev=%p, next=%p.\n",
103500+ new, prev, next);
103501+ BUG();
103502+ return false;
103503+ }
103504+ return true;
103505+}
103506+
103507 void __list_add(struct list_head *new,
103508- struct list_head *prev,
103509- struct list_head *next)
103510+ struct list_head *prev,
103511+ struct list_head *next)
103512 {
103513- WARN(next->prev != prev,
103514- "list_add corruption. next->prev should be "
103515- "prev (%p), but was %p. (next=%p).\n",
103516- prev, next->prev, next);
103517- WARN(prev->next != next,
103518- "list_add corruption. prev->next should be "
103519- "next (%p), but was %p. (prev=%p).\n",
103520- next, prev->next, prev);
103521- WARN(new == prev || new == next,
103522- "list_add double add: new=%p, prev=%p, next=%p.\n",
103523- new, prev, next);
103524+ if (!__list_add_debug(new, prev, next))
103525+ return;
103526+
103527 next->prev = new;
103528 new->next = next;
103529 new->prev = prev;
103530@@ -41,28 +62,46 @@ void __list_add(struct list_head *new,
103531 }
103532 EXPORT_SYMBOL(__list_add);
103533
103534-void __list_del_entry(struct list_head *entry)
103535+static bool __list_del_entry_debug(struct list_head *entry)
103536 {
103537 struct list_head *prev, *next;
103538
103539 prev = entry->prev;
103540 next = entry->next;
103541
103542- if (WARN(next == LIST_POISON1,
103543- "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
103544- entry, LIST_POISON1) ||
103545- WARN(prev == LIST_POISON2,
103546- "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
103547- entry, LIST_POISON2) ||
103548- WARN(prev->next != entry,
103549- "list_del corruption. prev->next should be %p, "
103550- "but was %p\n", entry, prev->next) ||
103551- WARN(next->prev != entry,
103552- "list_del corruption. next->prev should be %p, "
103553- "but was %p\n", entry, next->prev))
103554+ if (unlikely(next == LIST_POISON1)) {
103555+ printk(KERN_ERR "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
103556+ entry, LIST_POISON1);
103557+ BUG();
103558+ return false;
103559+ }
103560+ if (unlikely(prev == LIST_POISON2)) {
103561+ printk(KERN_ERR "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
103562+ entry, LIST_POISON2);
103563+ BUG();
103564+ return false;
103565+ }
103566+ if (unlikely(entry->prev->next != entry)) {
103567+ printk(KERN_ERR "list_del corruption. prev->next should be %p, "
103568+ "but was %p\n", entry, prev->next);
103569+ BUG();
103570+ return false;
103571+ }
103572+ if (unlikely(entry->next->prev != entry)) {
103573+ printk(KERN_ERR "list_del corruption. next->prev should be %p, "
103574+ "but was %p\n", entry, next->prev);
103575+ BUG();
103576+ return false;
103577+ }
103578+ return true;
103579+}
103580+
103581+void __list_del_entry(struct list_head *entry)
103582+{
103583+ if (!__list_del_entry_debug(entry))
103584 return;
103585
103586- __list_del(prev, next);
103587+ __list_del(entry->prev, entry->next);
103588 }
103589 EXPORT_SYMBOL(__list_del_entry);
103590
103591@@ -86,15 +125,85 @@ EXPORT_SYMBOL(list_del);
103592 void __list_add_rcu(struct list_head *new,
103593 struct list_head *prev, struct list_head *next)
103594 {
103595- WARN(next->prev != prev,
103596- "list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
103597- prev, next->prev, next);
103598- WARN(prev->next != next,
103599- "list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
103600- next, prev->next, prev);
103601+ if (!__list_add_debug(new, prev, next))
103602+ return;
103603+
103604 new->next = next;
103605 new->prev = prev;
103606 rcu_assign_pointer(list_next_rcu(prev), new);
103607 next->prev = new;
103608 }
103609 EXPORT_SYMBOL(__list_add_rcu);
103610+#endif
103611+
103612+void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
103613+{
103614+#ifdef CONFIG_DEBUG_LIST
103615+ if (!__list_add_debug(new, prev, next))
103616+ return;
103617+#endif
103618+
103619+ pax_open_kernel();
103620+ next->prev = new;
103621+ new->next = next;
103622+ new->prev = prev;
103623+ prev->next = new;
103624+ pax_close_kernel();
103625+}
103626+EXPORT_SYMBOL(__pax_list_add);
103627+
103628+void pax_list_del(struct list_head *entry)
103629+{
103630+#ifdef CONFIG_DEBUG_LIST
103631+ if (!__list_del_entry_debug(entry))
103632+ return;
103633+#endif
103634+
103635+ pax_open_kernel();
103636+ __list_del(entry->prev, entry->next);
103637+ entry->next = LIST_POISON1;
103638+ entry->prev = LIST_POISON2;
103639+ pax_close_kernel();
103640+}
103641+EXPORT_SYMBOL(pax_list_del);
103642+
103643+void pax_list_del_init(struct list_head *entry)
103644+{
103645+ pax_open_kernel();
103646+ __list_del(entry->prev, entry->next);
103647+ INIT_LIST_HEAD(entry);
103648+ pax_close_kernel();
103649+}
103650+EXPORT_SYMBOL(pax_list_del_init);
103651+
103652+void __pax_list_add_rcu(struct list_head *new,
103653+ struct list_head *prev, struct list_head *next)
103654+{
103655+#ifdef CONFIG_DEBUG_LIST
103656+ if (!__list_add_debug(new, prev, next))
103657+ return;
103658+#endif
103659+
103660+ pax_open_kernel();
103661+ new->next = next;
103662+ new->prev = prev;
103663+ rcu_assign_pointer(list_next_rcu(prev), new);
103664+ next->prev = new;
103665+ pax_close_kernel();
103666+}
103667+EXPORT_SYMBOL(__pax_list_add_rcu);
103668+
103669+void pax_list_del_rcu(struct list_head *entry)
103670+{
103671+#ifdef CONFIG_DEBUG_LIST
103672+ if (!__list_del_entry_debug(entry))
103673+ return;
103674+#endif
103675+
103676+ pax_open_kernel();
103677+ __list_del(entry->prev, entry->next);
103678+ entry->next = LIST_POISON1;
103679+ entry->prev = LIST_POISON2;
103680+ pax_close_kernel();
103681+}
103682+EXPORT_SYMBOL(pax_list_del_rcu);
103683diff --git a/lib/lockref.c b/lib/lockref.c
103684index ecb9a66..a044fc5 100644
103685--- a/lib/lockref.c
103686+++ b/lib/lockref.c
103687@@ -48,13 +48,13 @@
103688 void lockref_get(struct lockref *lockref)
103689 {
103690 CMPXCHG_LOOP(
103691- new.count++;
103692+ __lockref_inc(&new);
103693 ,
103694 return;
103695 );
103696
103697 spin_lock(&lockref->lock);
103698- lockref->count++;
103699+ __lockref_inc(lockref);
103700 spin_unlock(&lockref->lock);
103701 }
103702 EXPORT_SYMBOL(lockref_get);
103703@@ -69,8 +69,8 @@ int lockref_get_not_zero(struct lockref *lockref)
103704 int retval;
103705
103706 CMPXCHG_LOOP(
103707- new.count++;
103708- if (old.count <= 0)
103709+ __lockref_inc(&new);
103710+ if (__lockref_read(&old) <= 0)
103711 return 0;
103712 ,
103713 return 1;
103714@@ -78,8 +78,8 @@ int lockref_get_not_zero(struct lockref *lockref)
103715
103716 spin_lock(&lockref->lock);
103717 retval = 0;
103718- if (lockref->count > 0) {
103719- lockref->count++;
103720+ if (__lockref_read(lockref) > 0) {
103721+ __lockref_inc(lockref);
103722 retval = 1;
103723 }
103724 spin_unlock(&lockref->lock);
103725@@ -96,17 +96,17 @@ EXPORT_SYMBOL(lockref_get_not_zero);
103726 int lockref_get_or_lock(struct lockref *lockref)
103727 {
103728 CMPXCHG_LOOP(
103729- new.count++;
103730- if (old.count <= 0)
103731+ __lockref_inc(&new);
103732+ if (__lockref_read(&old) <= 0)
103733 break;
103734 ,
103735 return 1;
103736 );
103737
103738 spin_lock(&lockref->lock);
103739- if (lockref->count <= 0)
103740+ if (__lockref_read(lockref) <= 0)
103741 return 0;
103742- lockref->count++;
103743+ __lockref_inc(lockref);
103744 spin_unlock(&lockref->lock);
103745 return 1;
103746 }
103747@@ -122,11 +122,11 @@ EXPORT_SYMBOL(lockref_get_or_lock);
103748 int lockref_put_return(struct lockref *lockref)
103749 {
103750 CMPXCHG_LOOP(
103751- new.count--;
103752- if (old.count <= 0)
103753+ __lockref_dec(&new);
103754+ if (__lockref_read(&old) <= 0)
103755 return -1;
103756 ,
103757- return new.count;
103758+ return __lockref_read(&new);
103759 );
103760 return -1;
103761 }
103762@@ -140,17 +140,17 @@ EXPORT_SYMBOL(lockref_put_return);
103763 int lockref_put_or_lock(struct lockref *lockref)
103764 {
103765 CMPXCHG_LOOP(
103766- new.count--;
103767- if (old.count <= 1)
103768+ __lockref_dec(&new);
103769+ if (__lockref_read(&old) <= 1)
103770 break;
103771 ,
103772 return 1;
103773 );
103774
103775 spin_lock(&lockref->lock);
103776- if (lockref->count <= 1)
103777+ if (__lockref_read(lockref) <= 1)
103778 return 0;
103779- lockref->count--;
103780+ __lockref_dec(lockref);
103781 spin_unlock(&lockref->lock);
103782 return 1;
103783 }
103784@@ -163,7 +163,7 @@ EXPORT_SYMBOL(lockref_put_or_lock);
103785 void lockref_mark_dead(struct lockref *lockref)
103786 {
103787 assert_spin_locked(&lockref->lock);
103788- lockref->count = -128;
103789+ __lockref_set(lockref, -128);
103790 }
103791 EXPORT_SYMBOL(lockref_mark_dead);
103792
103793@@ -177,8 +177,8 @@ int lockref_get_not_dead(struct lockref *lockref)
103794 int retval;
103795
103796 CMPXCHG_LOOP(
103797- new.count++;
103798- if (old.count < 0)
103799+ __lockref_inc(&new);
103800+ if (__lockref_read(&old) < 0)
103801 return 0;
103802 ,
103803 return 1;
103804@@ -186,8 +186,8 @@ int lockref_get_not_dead(struct lockref *lockref)
103805
103806 spin_lock(&lockref->lock);
103807 retval = 0;
103808- if (lockref->count >= 0) {
103809- lockref->count++;
103810+ if (__lockref_read(lockref) >= 0) {
103811+ __lockref_inc(lockref);
103812 retval = 1;
103813 }
103814 spin_unlock(&lockref->lock);
103815diff --git a/lib/nlattr.c b/lib/nlattr.c
103816index f5907d2..36072be 100644
103817--- a/lib/nlattr.c
103818+++ b/lib/nlattr.c
103819@@ -278,6 +278,8 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count)
103820 {
103821 int minlen = min_t(int, count, nla_len(src));
103822
103823+ BUG_ON(minlen < 0);
103824+
103825 memcpy(dest, nla_data(src), minlen);
103826 if (count > minlen)
103827 memset(dest + minlen, 0, count - minlen);
103828diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
103829index 6111bcb..02e816b 100644
103830--- a/lib/percpu-refcount.c
103831+++ b/lib/percpu-refcount.c
103832@@ -31,7 +31,7 @@
103833 * atomic_long_t can't hit 0 before we've added up all the percpu refs.
103834 */
103835
103836-#define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 1))
103837+#define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 2))
103838
103839 static DECLARE_WAIT_QUEUE_HEAD(percpu_ref_switch_waitq);
103840
103841diff --git a/lib/radix-tree.c b/lib/radix-tree.c
103842index 3d2aa27..a472f20 100644
103843--- a/lib/radix-tree.c
103844+++ b/lib/radix-tree.c
103845@@ -67,7 +67,7 @@ struct radix_tree_preload {
103846 int nr;
103847 struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
103848 };
103849-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
103850+static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
103851
103852 static inline void *ptr_to_indirect(void *ptr)
103853 {
103854diff --git a/lib/random32.c b/lib/random32.c
103855index 0bee183..526f12f 100644
103856--- a/lib/random32.c
103857+++ b/lib/random32.c
103858@@ -47,7 +47,7 @@ static inline void prandom_state_selftest(void)
103859 }
103860 #endif
103861
103862-static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
103863+static DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
103864
103865 /**
103866 * prandom_u32_state - seeded pseudo-random number generator.
103867diff --git a/lib/rbtree.c b/lib/rbtree.c
103868index c16c81a..4dcbda1 100644
103869--- a/lib/rbtree.c
103870+++ b/lib/rbtree.c
103871@@ -380,7 +380,9 @@ static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
103872 static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
103873
103874 static const struct rb_augment_callbacks dummy_callbacks = {
103875- dummy_propagate, dummy_copy, dummy_rotate
103876+ .propagate = dummy_propagate,
103877+ .copy = dummy_copy,
103878+ .rotate = dummy_rotate
103879 };
103880
103881 void rb_insert_color(struct rb_node *node, struct rb_root *root)
103882diff --git a/lib/show_mem.c b/lib/show_mem.c
103883index adc98e18..0ce83c2 100644
103884--- a/lib/show_mem.c
103885+++ b/lib/show_mem.c
103886@@ -49,6 +49,6 @@ void show_mem(unsigned int filter)
103887 quicklist_total_size());
103888 #endif
103889 #ifdef CONFIG_MEMORY_FAILURE
103890- printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
103891+ printk("%lu pages hwpoisoned\n", atomic_long_read_unchecked(&num_poisoned_pages));
103892 #endif
103893 }
103894diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
103895index e0af6ff..fcc9f15 100644
103896--- a/lib/strncpy_from_user.c
103897+++ b/lib/strncpy_from_user.c
103898@@ -22,7 +22,7 @@
103899 */
103900 static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
103901 {
103902- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
103903+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
103904 long res = 0;
103905
103906 /*
103907diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
103908index a28df52..3d55877 100644
103909--- a/lib/strnlen_user.c
103910+++ b/lib/strnlen_user.c
103911@@ -26,7 +26,7 @@
103912 */
103913 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
103914 {
103915- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
103916+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
103917 long align, res = 0;
103918 unsigned long c;
103919
103920diff --git a/lib/swiotlb.c b/lib/swiotlb.c
103921index 4abda07..b9d3765 100644
103922--- a/lib/swiotlb.c
103923+++ b/lib/swiotlb.c
103924@@ -682,7 +682,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
103925
103926 void
103927 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
103928- dma_addr_t dev_addr)
103929+ dma_addr_t dev_addr, struct dma_attrs *attrs)
103930 {
103931 phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
103932
103933diff --git a/lib/test-hexdump.c b/lib/test-hexdump.c
103934index daf29a39..56f44ac 100644
103935--- a/lib/test-hexdump.c
103936+++ b/lib/test-hexdump.c
103937@@ -18,26 +18,26 @@ static const unsigned char data_b[] = {
103938
103939 static const unsigned char data_a[] = ".2.{....p..$}.4...1.....L...C...";
103940
103941-static const char *test_data_1_le[] __initconst = {
103942+static const char * const test_data_1_le[] __initconst = {
103943 "be", "32", "db", "7b", "0a", "18", "93", "b2",
103944 "70", "ba", "c4", "24", "7d", "83", "34", "9b",
103945 "a6", "9c", "31", "ad", "9c", "0f", "ac", "e9",
103946 "4c", "d1", "19", "99", "43", "b1", "af", "0c",
103947 };
103948
103949-static const char *test_data_2_le[] __initconst = {
103950+static const char * const test_data_2_le[] __initconst = {
103951 "32be", "7bdb", "180a", "b293",
103952 "ba70", "24c4", "837d", "9b34",
103953 "9ca6", "ad31", "0f9c", "e9ac",
103954 "d14c", "9919", "b143", "0caf",
103955 };
103956
103957-static const char *test_data_4_le[] __initconst = {
103958+static const char * const test_data_4_le[] __initconst = {
103959 "7bdb32be", "b293180a", "24c4ba70", "9b34837d",
103960 "ad319ca6", "e9ac0f9c", "9919d14c", "0cafb143",
103961 };
103962
103963-static const char *test_data_8_le[] __initconst = {
103964+static const char * const test_data_8_le[] __initconst = {
103965 "b293180a7bdb32be", "9b34837d24c4ba70",
103966 "e9ac0f9cad319ca6", "0cafb1439919d14c",
103967 };
103968diff --git a/lib/usercopy.c b/lib/usercopy.c
103969index 4f5b1dd..7cab418 100644
103970--- a/lib/usercopy.c
103971+++ b/lib/usercopy.c
103972@@ -7,3 +7,9 @@ void copy_from_user_overflow(void)
103973 WARN(1, "Buffer overflow detected!\n");
103974 }
103975 EXPORT_SYMBOL(copy_from_user_overflow);
103976+
103977+void copy_to_user_overflow(void)
103978+{
103979+ WARN(1, "Buffer overflow detected!\n");
103980+}
103981+EXPORT_SYMBOL(copy_to_user_overflow);
103982diff --git a/lib/vsprintf.c b/lib/vsprintf.c
103983index b235c96..343ffc1 100644
103984--- a/lib/vsprintf.c
103985+++ b/lib/vsprintf.c
103986@@ -16,6 +16,9 @@
103987 * - scnprintf and vscnprintf
103988 */
103989
103990+#ifdef CONFIG_GRKERNSEC_HIDESYM
103991+#define __INCLUDED_BY_HIDESYM 1
103992+#endif
103993 #include <stdarg.h>
103994 #include <linux/module.h> /* for KSYM_SYMBOL_LEN */
103995 #include <linux/types.h>
103996@@ -626,7 +629,7 @@ char *symbol_string(char *buf, char *end, void *ptr,
103997 #ifdef CONFIG_KALLSYMS
103998 if (*fmt == 'B')
103999 sprint_backtrace(sym, value);
104000- else if (*fmt != 'f' && *fmt != 's')
104001+ else if (*fmt != 'f' && *fmt != 's' && *fmt != 'X')
104002 sprint_symbol(sym, value);
104003 else
104004 sprint_symbol_no_offset(sym, value);
104005@@ -1322,7 +1325,11 @@ char *address_val(char *buf, char *end, const void *addr,
104006 return number(buf, end, num, spec);
104007 }
104008
104009+#ifdef CONFIG_GRKERNSEC_HIDESYM
104010+int kptr_restrict __read_mostly = 2;
104011+#else
104012 int kptr_restrict __read_mostly;
104013+#endif
104014
104015 /*
104016 * Show a '%p' thing. A kernel extension is that the '%p' is followed
104017@@ -1333,8 +1340,10 @@ int kptr_restrict __read_mostly;
104018 *
104019 * - 'F' For symbolic function descriptor pointers with offset
104020 * - 'f' For simple symbolic function names without offset
104021+ * - 'X' For simple symbolic function names without offset approved for use with GRKERNSEC_HIDESYM
104022 * - 'S' For symbolic direct pointers with offset
104023 * - 's' For symbolic direct pointers without offset
104024+ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
104025 * - '[FfSs]R' as above with __builtin_extract_return_addr() translation
104026 * - 'B' For backtraced symbolic direct pointers with offset
104027 * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
104028@@ -1417,12 +1426,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104029
104030 if (!ptr && *fmt != 'K') {
104031 /*
104032- * Print (null) with the same width as a pointer so it makes
104033+ * Print (nil) with the same width as a pointer so it makes
104034 * tabular output look nice.
104035 */
104036 if (spec.field_width == -1)
104037 spec.field_width = default_width;
104038- return string(buf, end, "(null)", spec);
104039+ return string(buf, end, "(nil)", spec);
104040 }
104041
104042 switch (*fmt) {
104043@@ -1432,6 +1441,14 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104044 /* Fallthrough */
104045 case 'S':
104046 case 's':
104047+#ifdef CONFIG_GRKERNSEC_HIDESYM
104048+ break;
104049+#else
104050+ return symbol_string(buf, end, ptr, spec, fmt);
104051+#endif
104052+ case 'X':
104053+ ptr = dereference_function_descriptor(ptr);
104054+ case 'A':
104055 case 'B':
104056 return symbol_string(buf, end, ptr, spec, fmt);
104057 case 'R':
104058@@ -1496,6 +1513,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104059 va_end(va);
104060 return buf;
104061 }
104062+ case 'P':
104063+ break;
104064 case 'K':
104065 /*
104066 * %pK cannot be used in IRQ context because its test
104067@@ -1553,6 +1572,22 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104068 ((const struct file *)ptr)->f_path.dentry,
104069 spec, fmt);
104070 }
104071+
104072+#ifdef CONFIG_GRKERNSEC_HIDESYM
104073+ /* 'P' = approved pointers to copy to userland,
104074+ as in the /proc/kallsyms case, as we make it display nothing
104075+ for non-root users, and the real contents for root users
104076+ 'X' = approved simple symbols
104077+ Also ignore 'K' pointers, since we force their NULLing for non-root users
104078+ above
104079+ */
104080+ if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'X' && *fmt != 'K' && is_usercopy_object(buf)) {
104081+ printk(KERN_ALERT "grsec: kernel infoleak detected! Please report this log to spender@grsecurity.net.\n");
104082+ dump_stack();
104083+ ptr = NULL;
104084+ }
104085+#endif
104086+
104087 spec.flags |= SMALL;
104088 if (spec.field_width == -1) {
104089 spec.field_width = default_width;
104090@@ -2254,11 +2289,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
104091 typeof(type) value; \
104092 if (sizeof(type) == 8) { \
104093 args = PTR_ALIGN(args, sizeof(u32)); \
104094- *(u32 *)&value = *(u32 *)args; \
104095- *((u32 *)&value + 1) = *(u32 *)(args + 4); \
104096+ *(u32 *)&value = *(const u32 *)args; \
104097+ *((u32 *)&value + 1) = *(const u32 *)(args + 4); \
104098 } else { \
104099 args = PTR_ALIGN(args, sizeof(type)); \
104100- value = *(typeof(type) *)args; \
104101+ value = *(const typeof(type) *)args; \
104102 } \
104103 args += sizeof(type); \
104104 value; \
104105@@ -2321,7 +2356,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
104106 case FORMAT_TYPE_STR: {
104107 const char *str_arg = args;
104108 args += strlen(str_arg) + 1;
104109- str = string(str, end, (char *)str_arg, spec);
104110+ str = string(str, end, str_arg, spec);
104111 break;
104112 }
104113
104114diff --git a/localversion-grsec b/localversion-grsec
104115new file mode 100644
104116index 0000000..7cd6065
104117--- /dev/null
104118+++ b/localversion-grsec
104119@@ -0,0 +1 @@
104120+-grsec
104121diff --git a/mm/Kconfig b/mm/Kconfig
104122index a03131b..1b1bafb 100644
104123--- a/mm/Kconfig
104124+++ b/mm/Kconfig
104125@@ -342,10 +342,11 @@ config KSM
104126 root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
104127
104128 config DEFAULT_MMAP_MIN_ADDR
104129- int "Low address space to protect from user allocation"
104130+ int "Low address space to protect from user allocation"
104131 depends on MMU
104132- default 4096
104133- help
104134+ default 32768 if ALPHA || ARM || PARISC || SPARC32
104135+ default 65536
104136+ help
104137 This is the portion of low virtual memory which should be protected
104138 from userspace allocation. Keeping a user from writing to low pages
104139 can help reduce the impact of kernel NULL pointer bugs.
104140@@ -376,7 +377,7 @@ config MEMORY_FAILURE
104141
104142 config HWPOISON_INJECT
104143 tristate "HWPoison pages injector"
104144- depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
104145+ depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
104146 select PROC_PAGE_MONITOR
104147
104148 config NOMMU_INITIAL_TRIM_EXCESS
104149diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
104150index 957d3da..1d34e20 100644
104151--- a/mm/Kconfig.debug
104152+++ b/mm/Kconfig.debug
104153@@ -10,6 +10,7 @@ config PAGE_EXTENSION
104154 config DEBUG_PAGEALLOC
104155 bool "Debug page memory allocations"
104156 depends on DEBUG_KERNEL
104157+ depends on !PAX_MEMORY_SANITIZE
104158 depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
104159 depends on !KMEMCHECK
104160 select PAGE_EXTENSION
104161diff --git a/mm/backing-dev.c b/mm/backing-dev.c
104162index 6dc4580..e031ec1 100644
104163--- a/mm/backing-dev.c
104164+++ b/mm/backing-dev.c
104165@@ -12,7 +12,7 @@
104166 #include <linux/device.h>
104167 #include <trace/events/writeback.h>
104168
104169-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
104170+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
104171
104172 struct backing_dev_info noop_backing_dev_info = {
104173 .name = "noop",
104174@@ -474,7 +474,7 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name)
104175 return err;
104176
104177 err = bdi_register(bdi, NULL, "%.28s-%ld", name,
104178- atomic_long_inc_return(&bdi_seq));
104179+ atomic_long_inc_return_unchecked(&bdi_seq));
104180 if (err) {
104181 bdi_destroy(bdi);
104182 return err;
104183diff --git a/mm/filemap.c b/mm/filemap.c
104184index ad72420..0a20ef2 100644
104185--- a/mm/filemap.c
104186+++ b/mm/filemap.c
104187@@ -2097,7 +2097,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
104188 struct address_space *mapping = file->f_mapping;
104189
104190 if (!mapping->a_ops->readpage)
104191- return -ENOEXEC;
104192+ return -ENODEV;
104193 file_accessed(file);
104194 vma->vm_ops = &generic_file_vm_ops;
104195 return 0;
104196@@ -2275,6 +2275,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
104197 *pos = i_size_read(inode);
104198
104199 if (limit != RLIM_INFINITY) {
104200+ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
104201 if (*pos >= limit) {
104202 send_sig(SIGXFSZ, current, 0);
104203 return -EFBIG;
104204diff --git a/mm/gup.c b/mm/gup.c
104205index a6e24e2..72dd2cf 100644
104206--- a/mm/gup.c
104207+++ b/mm/gup.c
104208@@ -265,11 +265,6 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma,
104209 unsigned int fault_flags = 0;
104210 int ret;
104211
104212- /* For mlock, just skip the stack guard page. */
104213- if ((*flags & FOLL_MLOCK) &&
104214- (stack_guard_page_start(vma, address) ||
104215- stack_guard_page_end(vma, address + PAGE_SIZE)))
104216- return -ENOENT;
104217 if (*flags & FOLL_WRITE)
104218 fault_flags |= FAULT_FLAG_WRITE;
104219 if (nonblocking)
104220@@ -435,14 +430,14 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
104221 if (!(gup_flags & FOLL_FORCE))
104222 gup_flags |= FOLL_NUMA;
104223
104224- do {
104225+ while (nr_pages) {
104226 struct page *page;
104227 unsigned int foll_flags = gup_flags;
104228 unsigned int page_increm;
104229
104230 /* first iteration or cross vma bound */
104231 if (!vma || start >= vma->vm_end) {
104232- vma = find_extend_vma(mm, start);
104233+ vma = find_vma(mm, start);
104234 if (!vma && in_gate_area(mm, start)) {
104235 int ret;
104236 ret = get_gate_page(mm, start & PAGE_MASK,
104237@@ -454,7 +449,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
104238 goto next_page;
104239 }
104240
104241- if (!vma || check_vma_flags(vma, gup_flags))
104242+ if (!vma || start < vma->vm_start || check_vma_flags(vma, gup_flags))
104243 return i ? : -EFAULT;
104244 if (is_vm_hugetlb_page(vma)) {
104245 i = follow_hugetlb_page(mm, vma, pages, vmas,
104246@@ -509,7 +504,7 @@ next_page:
104247 i += page_increm;
104248 start += page_increm * PAGE_SIZE;
104249 nr_pages -= page_increm;
104250- } while (nr_pages);
104251+ }
104252 return i;
104253 }
104254 EXPORT_SYMBOL(__get_user_pages);
104255diff --git a/mm/highmem.c b/mm/highmem.c
104256index 123bcd3..0de52ba 100644
104257--- a/mm/highmem.c
104258+++ b/mm/highmem.c
104259@@ -195,8 +195,9 @@ static void flush_all_zero_pkmaps(void)
104260 * So no dangers, even with speculative execution.
104261 */
104262 page = pte_page(pkmap_page_table[i]);
104263+ pax_open_kernel();
104264 pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
104265-
104266+ pax_close_kernel();
104267 set_page_address(page, NULL);
104268 need_flush = 1;
104269 }
104270@@ -259,9 +260,11 @@ start:
104271 }
104272 }
104273 vaddr = PKMAP_ADDR(last_pkmap_nr);
104274+
104275+ pax_open_kernel();
104276 set_pte_at(&init_mm, vaddr,
104277 &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
104278-
104279+ pax_close_kernel();
104280 pkmap_count[last_pkmap_nr] = 1;
104281 set_page_address(page, (void *)vaddr);
104282
104283diff --git a/mm/hugetlb.c b/mm/hugetlb.c
104284index caad3c5..4f68807 100644
104285--- a/mm/hugetlb.c
104286+++ b/mm/hugetlb.c
104287@@ -2260,6 +2260,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
104288 struct ctl_table *table, int write,
104289 void __user *buffer, size_t *length, loff_t *ppos)
104290 {
104291+ ctl_table_no_const t;
104292 struct hstate *h = &default_hstate;
104293 unsigned long tmp = h->max_huge_pages;
104294 int ret;
104295@@ -2267,9 +2268,10 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
104296 if (!hugepages_supported())
104297 return -ENOTSUPP;
104298
104299- table->data = &tmp;
104300- table->maxlen = sizeof(unsigned long);
104301- ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
104302+ t = *table;
104303+ t.data = &tmp;
104304+ t.maxlen = sizeof(unsigned long);
104305+ ret = proc_doulongvec_minmax(&t, write, buffer, length, ppos);
104306 if (ret)
104307 goto out;
104308
104309@@ -2304,6 +2306,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
104310 struct hstate *h = &default_hstate;
104311 unsigned long tmp;
104312 int ret;
104313+ ctl_table_no_const hugetlb_table;
104314
104315 if (!hugepages_supported())
104316 return -ENOTSUPP;
104317@@ -2313,9 +2316,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
104318 if (write && hstate_is_gigantic(h))
104319 return -EINVAL;
104320
104321- table->data = &tmp;
104322- table->maxlen = sizeof(unsigned long);
104323- ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
104324+ hugetlb_table = *table;
104325+ hugetlb_table.data = &tmp;
104326+ hugetlb_table.maxlen = sizeof(unsigned long);
104327+ ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
104328 if (ret)
104329 goto out;
104330
104331@@ -2800,6 +2804,27 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
104332 i_mmap_unlock_write(mapping);
104333 }
104334
104335+#ifdef CONFIG_PAX_SEGMEXEC
104336+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
104337+{
104338+ struct mm_struct *mm = vma->vm_mm;
104339+ struct vm_area_struct *vma_m;
104340+ unsigned long address_m;
104341+ pte_t *ptep_m;
104342+
104343+ vma_m = pax_find_mirror_vma(vma);
104344+ if (!vma_m)
104345+ return;
104346+
104347+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
104348+ address_m = address + SEGMEXEC_TASK_SIZE;
104349+ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
104350+ get_page(page_m);
104351+ hugepage_add_anon_rmap(page_m, vma_m, address_m);
104352+ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
104353+}
104354+#endif
104355+
104356 /*
104357 * Hugetlb_cow() should be called with page lock of the original hugepage held.
104358 * Called with hugetlb_instantiation_mutex held and pte_page locked so we
104359@@ -2912,6 +2937,11 @@ retry_avoidcopy:
104360 make_huge_pte(vma, new_page, 1));
104361 page_remove_rmap(old_page);
104362 hugepage_add_new_anon_rmap(new_page, vma, address);
104363+
104364+#ifdef CONFIG_PAX_SEGMEXEC
104365+ pax_mirror_huge_pte(vma, address, new_page);
104366+#endif
104367+
104368 /* Make the old page be freed below */
104369 new_page = old_page;
104370 }
104371@@ -3072,6 +3102,10 @@ retry:
104372 && (vma->vm_flags & VM_SHARED)));
104373 set_huge_pte_at(mm, address, ptep, new_pte);
104374
104375+#ifdef CONFIG_PAX_SEGMEXEC
104376+ pax_mirror_huge_pte(vma, address, page);
104377+#endif
104378+
104379 if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
104380 /* Optimization, do the COW without a second fault */
104381 ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
104382@@ -3139,6 +3173,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
104383 struct address_space *mapping;
104384 int need_wait_lock = 0;
104385
104386+#ifdef CONFIG_PAX_SEGMEXEC
104387+ struct vm_area_struct *vma_m;
104388+#endif
104389+
104390 address &= huge_page_mask(h);
104391
104392 ptep = huge_pte_offset(mm, address);
104393@@ -3152,6 +3190,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
104394 VM_FAULT_SET_HINDEX(hstate_index(h));
104395 }
104396
104397+#ifdef CONFIG_PAX_SEGMEXEC
104398+ vma_m = pax_find_mirror_vma(vma);
104399+ if (vma_m) {
104400+ unsigned long address_m;
104401+
104402+ if (vma->vm_start > vma_m->vm_start) {
104403+ address_m = address;
104404+ address -= SEGMEXEC_TASK_SIZE;
104405+ vma = vma_m;
104406+ h = hstate_vma(vma);
104407+ } else
104408+ address_m = address + SEGMEXEC_TASK_SIZE;
104409+
104410+ if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
104411+ return VM_FAULT_OOM;
104412+ address_m &= HPAGE_MASK;
104413+ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
104414+ }
104415+#endif
104416+
104417 ptep = huge_pte_alloc(mm, address, huge_page_size(h));
104418 if (!ptep)
104419 return VM_FAULT_OOM;
104420diff --git a/mm/internal.h b/mm/internal.h
104421index a96da5b..42ebd54 100644
104422--- a/mm/internal.h
104423+++ b/mm/internal.h
104424@@ -156,6 +156,7 @@ __find_buddy_index(unsigned long page_idx, unsigned int order)
104425
104426 extern int __isolate_free_page(struct page *page, unsigned int order);
104427 extern void __free_pages_bootmem(struct page *page, unsigned int order);
104428+extern void free_compound_page(struct page *page);
104429 extern void prep_compound_page(struct page *page, unsigned long order);
104430 #ifdef CONFIG_MEMORY_FAILURE
104431 extern bool is_free_buddy_page(struct page *page);
104432@@ -411,7 +412,7 @@ extern u32 hwpoison_filter_enable;
104433
104434 extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
104435 unsigned long, unsigned long,
104436- unsigned long, unsigned long);
104437+ unsigned long, unsigned long) __intentional_overflow(-1);
104438
104439 extern void set_pageblock_order(void);
104440 unsigned long reclaim_clean_pages_from_list(struct zone *zone,
104441diff --git a/mm/kmemleak.c b/mm/kmemleak.c
104442index 5405aff..483406d 100644
104443--- a/mm/kmemleak.c
104444+++ b/mm/kmemleak.c
104445@@ -365,7 +365,7 @@ static void print_unreferenced(struct seq_file *seq,
104446
104447 for (i = 0; i < object->trace_len; i++) {
104448 void *ptr = (void *)object->trace[i];
104449- seq_printf(seq, " [<%p>] %pS\n", ptr, ptr);
104450+ seq_printf(seq, " [<%pP>] %pA\n", ptr, ptr);
104451 }
104452 }
104453
104454@@ -1911,7 +1911,7 @@ static int __init kmemleak_late_init(void)
104455 return -ENOMEM;
104456 }
104457
104458- dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
104459+ dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
104460 &kmemleak_fops);
104461 if (!dentry)
104462 pr_warning("Failed to create the debugfs kmemleak file\n");
104463diff --git a/mm/maccess.c b/mm/maccess.c
104464index d53adf9..03a24bf 100644
104465--- a/mm/maccess.c
104466+++ b/mm/maccess.c
104467@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
104468 set_fs(KERNEL_DS);
104469 pagefault_disable();
104470 ret = __copy_from_user_inatomic(dst,
104471- (__force const void __user *)src, size);
104472+ (const void __force_user *)src, size);
104473 pagefault_enable();
104474 set_fs(old_fs);
104475
104476@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
104477
104478 set_fs(KERNEL_DS);
104479 pagefault_disable();
104480- ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
104481+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
104482 pagefault_enable();
104483 set_fs(old_fs);
104484
104485diff --git a/mm/madvise.c b/mm/madvise.c
104486index d551475..8fdd7f3 100644
104487--- a/mm/madvise.c
104488+++ b/mm/madvise.c
104489@@ -51,6 +51,10 @@ static long madvise_behavior(struct vm_area_struct *vma,
104490 pgoff_t pgoff;
104491 unsigned long new_flags = vma->vm_flags;
104492
104493+#ifdef CONFIG_PAX_SEGMEXEC
104494+ struct vm_area_struct *vma_m;
104495+#endif
104496+
104497 switch (behavior) {
104498 case MADV_NORMAL:
104499 new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
104500@@ -126,6 +130,13 @@ success:
104501 /*
104502 * vm_flags is protected by the mmap_sem held in write mode.
104503 */
104504+
104505+#ifdef CONFIG_PAX_SEGMEXEC
104506+ vma_m = pax_find_mirror_vma(vma);
104507+ if (vma_m)
104508+ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
104509+#endif
104510+
104511 vma->vm_flags = new_flags;
104512
104513 out:
104514@@ -277,11 +288,27 @@ static long madvise_dontneed(struct vm_area_struct *vma,
104515 struct vm_area_struct **prev,
104516 unsigned long start, unsigned long end)
104517 {
104518+
104519+#ifdef CONFIG_PAX_SEGMEXEC
104520+ struct vm_area_struct *vma_m;
104521+#endif
104522+
104523 *prev = vma;
104524 if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
104525 return -EINVAL;
104526
104527 zap_page_range(vma, start, end - start, NULL);
104528+
104529+#ifdef CONFIG_PAX_SEGMEXEC
104530+ vma_m = pax_find_mirror_vma(vma);
104531+ if (vma_m) {
104532+ if (vma_m->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
104533+ return -EINVAL;
104534+
104535+ zap_page_range(vma_m, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
104536+ }
104537+#endif
104538+
104539 return 0;
104540 }
104541
104542@@ -484,6 +511,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
104543 if (end < start)
104544 return error;
104545
104546+#ifdef CONFIG_PAX_SEGMEXEC
104547+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
104548+ if (end > SEGMEXEC_TASK_SIZE)
104549+ return error;
104550+ } else
104551+#endif
104552+
104553+ if (end > TASK_SIZE)
104554+ return error;
104555+
104556 error = 0;
104557 if (end == start)
104558 return error;
104559diff --git a/mm/memory-failure.c b/mm/memory-failure.c
104560index 72a5224..51ba846 100644
104561--- a/mm/memory-failure.c
104562+++ b/mm/memory-failure.c
104563@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
104564
104565 int sysctl_memory_failure_recovery __read_mostly = 1;
104566
104567-atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
104568+atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
104569
104570 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
104571
104572@@ -198,7 +198,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
104573 pfn, t->comm, t->pid);
104574 si.si_signo = SIGBUS;
104575 si.si_errno = 0;
104576- si.si_addr = (void *)addr;
104577+ si.si_addr = (void __user *)addr;
104578 #ifdef __ARCH_SI_TRAPNO
104579 si.si_trapno = trapno;
104580 #endif
104581@@ -779,7 +779,7 @@ static struct page_state {
104582 unsigned long res;
104583 char *msg;
104584 int (*action)(struct page *p, unsigned long pfn);
104585-} error_states[] = {
104586+} __do_const error_states[] = {
104587 { reserved, reserved, "reserved kernel", me_kernel },
104588 /*
104589 * free pages are specially detected outside this table:
104590@@ -1087,7 +1087,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104591 nr_pages = 1 << compound_order(hpage);
104592 else /* normal page or thp */
104593 nr_pages = 1;
104594- atomic_long_add(nr_pages, &num_poisoned_pages);
104595+ atomic_long_add_unchecked(nr_pages, &num_poisoned_pages);
104596
104597 /*
104598 * We need/can do nothing about count=0 pages.
104599@@ -1116,7 +1116,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104600 if (PageHWPoison(hpage)) {
104601 if ((hwpoison_filter(p) && TestClearPageHWPoison(p))
104602 || (p != hpage && TestSetPageHWPoison(hpage))) {
104603- atomic_long_sub(nr_pages, &num_poisoned_pages);
104604+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104605 unlock_page(hpage);
104606 return 0;
104607 }
104608@@ -1184,14 +1184,14 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104609 */
104610 if (!PageHWPoison(p)) {
104611 printk(KERN_ERR "MCE %#lx: just unpoisoned\n", pfn);
104612- atomic_long_sub(nr_pages, &num_poisoned_pages);
104613+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104614 put_page(hpage);
104615 res = 0;
104616 goto out;
104617 }
104618 if (hwpoison_filter(p)) {
104619 if (TestClearPageHWPoison(p))
104620- atomic_long_sub(nr_pages, &num_poisoned_pages);
104621+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104622 unlock_page(hpage);
104623 put_page(hpage);
104624 return 0;
104625@@ -1421,7 +1421,7 @@ int unpoison_memory(unsigned long pfn)
104626 return 0;
104627 }
104628 if (TestClearPageHWPoison(p))
104629- atomic_long_dec(&num_poisoned_pages);
104630+ atomic_long_dec_unchecked(&num_poisoned_pages);
104631 pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
104632 return 0;
104633 }
104634@@ -1435,7 +1435,7 @@ int unpoison_memory(unsigned long pfn)
104635 */
104636 if (TestClearPageHWPoison(page)) {
104637 pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
104638- atomic_long_sub(nr_pages, &num_poisoned_pages);
104639+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104640 freeit = 1;
104641 if (PageHuge(page))
104642 clear_page_hwpoison_huge_page(page);
104643@@ -1560,11 +1560,11 @@ static int soft_offline_huge_page(struct page *page, int flags)
104644 if (PageHuge(page)) {
104645 set_page_hwpoison_huge_page(hpage);
104646 dequeue_hwpoisoned_huge_page(hpage);
104647- atomic_long_add(1 << compound_order(hpage),
104648+ atomic_long_add_unchecked(1 << compound_order(hpage),
104649 &num_poisoned_pages);
104650 } else {
104651 SetPageHWPoison(page);
104652- atomic_long_inc(&num_poisoned_pages);
104653+ atomic_long_inc_unchecked(&num_poisoned_pages);
104654 }
104655 }
104656 return ret;
104657@@ -1603,7 +1603,7 @@ static int __soft_offline_page(struct page *page, int flags)
104658 put_page(page);
104659 pr_info("soft_offline: %#lx: invalidated\n", pfn);
104660 SetPageHWPoison(page);
104661- atomic_long_inc(&num_poisoned_pages);
104662+ atomic_long_inc_unchecked(&num_poisoned_pages);
104663 return 0;
104664 }
104665
104666@@ -1652,7 +1652,7 @@ static int __soft_offline_page(struct page *page, int flags)
104667 if (!is_free_buddy_page(page))
104668 pr_info("soft offline: %#lx: page leaked\n",
104669 pfn);
104670- atomic_long_inc(&num_poisoned_pages);
104671+ atomic_long_inc_unchecked(&num_poisoned_pages);
104672 }
104673 } else {
104674 pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
104675@@ -1722,11 +1722,11 @@ int soft_offline_page(struct page *page, int flags)
104676 if (PageHuge(page)) {
104677 set_page_hwpoison_huge_page(hpage);
104678 if (!dequeue_hwpoisoned_huge_page(hpage))
104679- atomic_long_add(1 << compound_order(hpage),
104680+ atomic_long_add_unchecked(1 << compound_order(hpage),
104681 &num_poisoned_pages);
104682 } else {
104683 if (!TestSetPageHWPoison(page))
104684- atomic_long_inc(&num_poisoned_pages);
104685+ atomic_long_inc_unchecked(&num_poisoned_pages);
104686 }
104687 }
104688 unset_migratetype_isolate(page, MIGRATE_MOVABLE);
104689diff --git a/mm/memory.c b/mm/memory.c
104690index 97839f5..4bc5530 100644
104691--- a/mm/memory.c
104692+++ b/mm/memory.c
104693@@ -414,6 +414,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
104694 free_pte_range(tlb, pmd, addr);
104695 } while (pmd++, addr = next, addr != end);
104696
104697+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
104698 start &= PUD_MASK;
104699 if (start < floor)
104700 return;
104701@@ -429,6 +430,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
104702 pud_clear(pud);
104703 pmd_free_tlb(tlb, pmd, start);
104704 mm_dec_nr_pmds(tlb->mm);
104705+#endif
104706 }
104707
104708 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104709@@ -448,6 +450,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104710 free_pmd_range(tlb, pud, addr, next, floor, ceiling);
104711 } while (pud++, addr = next, addr != end);
104712
104713+#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
104714 start &= PGDIR_MASK;
104715 if (start < floor)
104716 return;
104717@@ -462,6 +465,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104718 pud = pud_offset(pgd, start);
104719 pgd_clear(pgd);
104720 pud_free_tlb(tlb, pud, start);
104721+#endif
104722+
104723 }
104724
104725 /*
104726@@ -691,10 +696,10 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
104727 * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y
104728 */
104729 if (vma->vm_ops)
104730- printk(KERN_ALERT "vma->vm_ops->fault: %pSR\n",
104731+ printk(KERN_ALERT "vma->vm_ops->fault: %pAR\n",
104732 vma->vm_ops->fault);
104733 if (vma->vm_file)
104734- printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
104735+ printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pAR\n",
104736 vma->vm_file->f_op->mmap);
104737 dump_stack();
104738 add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
104739@@ -1464,6 +1469,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
104740 page_add_file_rmap(page);
104741 set_pte_at(mm, addr, pte, mk_pte(page, prot));
104742
104743+#ifdef CONFIG_PAX_SEGMEXEC
104744+ pax_mirror_file_pte(vma, addr, page, ptl);
104745+#endif
104746+
104747 retval = 0;
104748 pte_unmap_unlock(pte, ptl);
104749 return retval;
104750@@ -1508,9 +1517,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
104751 if (!page_count(page))
104752 return -EINVAL;
104753 if (!(vma->vm_flags & VM_MIXEDMAP)) {
104754+
104755+#ifdef CONFIG_PAX_SEGMEXEC
104756+ struct vm_area_struct *vma_m;
104757+#endif
104758+
104759 BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
104760 BUG_ON(vma->vm_flags & VM_PFNMAP);
104761 vma->vm_flags |= VM_MIXEDMAP;
104762+
104763+#ifdef CONFIG_PAX_SEGMEXEC
104764+ vma_m = pax_find_mirror_vma(vma);
104765+ if (vma_m)
104766+ vma_m->vm_flags |= VM_MIXEDMAP;
104767+#endif
104768+
104769 }
104770 return insert_page(vma, addr, page, vma->vm_page_prot);
104771 }
104772@@ -1593,6 +1614,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
104773 unsigned long pfn)
104774 {
104775 BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
104776+ BUG_ON(vma->vm_mirror);
104777
104778 if (addr < vma->vm_start || addr >= vma->vm_end)
104779 return -EFAULT;
104780@@ -1840,7 +1862,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
104781
104782 BUG_ON(pud_huge(*pud));
104783
104784- pmd = pmd_alloc(mm, pud, addr);
104785+ pmd = (mm == &init_mm) ?
104786+ pmd_alloc_kernel(mm, pud, addr) :
104787+ pmd_alloc(mm, pud, addr);
104788 if (!pmd)
104789 return -ENOMEM;
104790 do {
104791@@ -1860,7 +1884,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
104792 unsigned long next;
104793 int err;
104794
104795- pud = pud_alloc(mm, pgd, addr);
104796+ pud = (mm == &init_mm) ?
104797+ pud_alloc_kernel(mm, pgd, addr) :
104798+ pud_alloc(mm, pgd, addr);
104799 if (!pud)
104800 return -ENOMEM;
104801 do {
104802@@ -1982,6 +2008,185 @@ static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page,
104803 return ret;
104804 }
104805
104806+#ifdef CONFIG_PAX_SEGMEXEC
104807+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
104808+{
104809+ struct mm_struct *mm = vma->vm_mm;
104810+ spinlock_t *ptl;
104811+ pte_t *pte, entry;
104812+
104813+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
104814+ entry = *pte;
104815+ if (!pte_present(entry)) {
104816+ if (!pte_none(entry)) {
104817+ free_swap_and_cache(pte_to_swp_entry(entry));
104818+ pte_clear_not_present_full(mm, address, pte, 0);
104819+ }
104820+ } else {
104821+ struct page *page;
104822+
104823+ flush_cache_page(vma, address, pte_pfn(entry));
104824+ entry = ptep_clear_flush(vma, address, pte);
104825+ BUG_ON(pte_dirty(entry));
104826+ page = vm_normal_page(vma, address, entry);
104827+ if (page) {
104828+ update_hiwater_rss(mm);
104829+ if (PageAnon(page))
104830+ dec_mm_counter_fast(mm, MM_ANONPAGES);
104831+ else
104832+ dec_mm_counter_fast(mm, MM_FILEPAGES);
104833+ page_remove_rmap(page);
104834+ page_cache_release(page);
104835+ }
104836+ }
104837+ pte_unmap_unlock(pte, ptl);
104838+}
104839+
104840+/* PaX: if vma is mirrored, synchronize the mirror's PTE
104841+ *
104842+ * the ptl of the lower mapped page is held on entry and is not released on exit
104843+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
104844+ */
104845+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
104846+{
104847+ struct mm_struct *mm = vma->vm_mm;
104848+ unsigned long address_m;
104849+ spinlock_t *ptl_m;
104850+ struct vm_area_struct *vma_m;
104851+ pmd_t *pmd_m;
104852+ pte_t *pte_m, entry_m;
104853+
104854+ BUG_ON(!page_m || !PageAnon(page_m));
104855+
104856+ vma_m = pax_find_mirror_vma(vma);
104857+ if (!vma_m)
104858+ return;
104859+
104860+ BUG_ON(!PageLocked(page_m));
104861+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
104862+ address_m = address + SEGMEXEC_TASK_SIZE;
104863+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
104864+ pte_m = pte_offset_map(pmd_m, address_m);
104865+ ptl_m = pte_lockptr(mm, pmd_m);
104866+ if (ptl != ptl_m) {
104867+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
104868+ if (!pte_none(*pte_m))
104869+ goto out;
104870+ }
104871+
104872+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
104873+ page_cache_get(page_m);
104874+ page_add_anon_rmap(page_m, vma_m, address_m);
104875+ inc_mm_counter_fast(mm, MM_ANONPAGES);
104876+ set_pte_at(mm, address_m, pte_m, entry_m);
104877+ update_mmu_cache(vma_m, address_m, pte_m);
104878+out:
104879+ if (ptl != ptl_m)
104880+ spin_unlock(ptl_m);
104881+ pte_unmap(pte_m);
104882+ unlock_page(page_m);
104883+}
104884+
104885+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
104886+{
104887+ struct mm_struct *mm = vma->vm_mm;
104888+ unsigned long address_m;
104889+ spinlock_t *ptl_m;
104890+ struct vm_area_struct *vma_m;
104891+ pmd_t *pmd_m;
104892+ pte_t *pte_m, entry_m;
104893+
104894+ BUG_ON(!page_m || PageAnon(page_m));
104895+
104896+ vma_m = pax_find_mirror_vma(vma);
104897+ if (!vma_m)
104898+ return;
104899+
104900+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
104901+ address_m = address + SEGMEXEC_TASK_SIZE;
104902+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
104903+ pte_m = pte_offset_map(pmd_m, address_m);
104904+ ptl_m = pte_lockptr(mm, pmd_m);
104905+ if (ptl != ptl_m) {
104906+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
104907+ if (!pte_none(*pte_m))
104908+ goto out;
104909+ }
104910+
104911+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
104912+ page_cache_get(page_m);
104913+ page_add_file_rmap(page_m);
104914+ inc_mm_counter_fast(mm, MM_FILEPAGES);
104915+ set_pte_at(mm, address_m, pte_m, entry_m);
104916+ update_mmu_cache(vma_m, address_m, pte_m);
104917+out:
104918+ if (ptl != ptl_m)
104919+ spin_unlock(ptl_m);
104920+ pte_unmap(pte_m);
104921+}
104922+
104923+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
104924+{
104925+ struct mm_struct *mm = vma->vm_mm;
104926+ unsigned long address_m;
104927+ spinlock_t *ptl_m;
104928+ struct vm_area_struct *vma_m;
104929+ pmd_t *pmd_m;
104930+ pte_t *pte_m, entry_m;
104931+
104932+ vma_m = pax_find_mirror_vma(vma);
104933+ if (!vma_m)
104934+ return;
104935+
104936+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
104937+ address_m = address + SEGMEXEC_TASK_SIZE;
104938+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
104939+ pte_m = pte_offset_map(pmd_m, address_m);
104940+ ptl_m = pte_lockptr(mm, pmd_m);
104941+ if (ptl != ptl_m) {
104942+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
104943+ if (!pte_none(*pte_m))
104944+ goto out;
104945+ }
104946+
104947+ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
104948+ set_pte_at(mm, address_m, pte_m, entry_m);
104949+out:
104950+ if (ptl != ptl_m)
104951+ spin_unlock(ptl_m);
104952+ pte_unmap(pte_m);
104953+}
104954+
104955+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
104956+{
104957+ struct page *page_m;
104958+ pte_t entry;
104959+
104960+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
104961+ goto out;
104962+
104963+ entry = *pte;
104964+ page_m = vm_normal_page(vma, address, entry);
104965+ if (!page_m)
104966+ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
104967+ else if (PageAnon(page_m)) {
104968+ if (pax_find_mirror_vma(vma)) {
104969+ pte_unmap_unlock(pte, ptl);
104970+ lock_page(page_m);
104971+ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
104972+ if (pte_same(entry, *pte))
104973+ pax_mirror_anon_pte(vma, address, page_m, ptl);
104974+ else
104975+ unlock_page(page_m);
104976+ }
104977+ } else
104978+ pax_mirror_file_pte(vma, address, page_m, ptl);
104979+
104980+out:
104981+ pte_unmap_unlock(pte, ptl);
104982+}
104983+#endif
104984+
104985 /*
104986 * This routine handles present pages, when users try to write
104987 * to a shared page. It is done by copying the page to a new address
104988@@ -2172,6 +2377,12 @@ gotten:
104989 */
104990 page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
104991 if (likely(pte_same(*page_table, orig_pte))) {
104992+
104993+#ifdef CONFIG_PAX_SEGMEXEC
104994+ if (pax_find_mirror_vma(vma))
104995+ BUG_ON(!trylock_page(new_page));
104996+#endif
104997+
104998 if (old_page) {
104999 if (!PageAnon(old_page)) {
105000 dec_mm_counter_fast(mm, MM_FILEPAGES);
105001@@ -2225,6 +2436,10 @@ gotten:
105002 page_remove_rmap(old_page);
105003 }
105004
105005+#ifdef CONFIG_PAX_SEGMEXEC
105006+ pax_mirror_anon_pte(vma, address, new_page, ptl);
105007+#endif
105008+
105009 /* Free the old page.. */
105010 new_page = old_page;
105011 ret |= VM_FAULT_WRITE;
105012@@ -2483,6 +2698,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
105013 swap_free(entry);
105014 if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
105015 try_to_free_swap(page);
105016+
105017+#ifdef CONFIG_PAX_SEGMEXEC
105018+ if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
105019+#endif
105020+
105021 unlock_page(page);
105022 if (page != swapcache) {
105023 /*
105024@@ -2506,6 +2726,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
105025
105026 /* No need to invalidate - it was non-present before */
105027 update_mmu_cache(vma, address, page_table);
105028+
105029+#ifdef CONFIG_PAX_SEGMEXEC
105030+ pax_mirror_anon_pte(vma, address, page, ptl);
105031+#endif
105032+
105033 unlock:
105034 pte_unmap_unlock(page_table, ptl);
105035 out:
105036@@ -2525,40 +2750,6 @@ out_release:
105037 }
105038
105039 /*
105040- * This is like a special single-page "expand_{down|up}wards()",
105041- * except we must first make sure that 'address{-|+}PAGE_SIZE'
105042- * doesn't hit another vma.
105043- */
105044-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
105045-{
105046- address &= PAGE_MASK;
105047- if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
105048- struct vm_area_struct *prev = vma->vm_prev;
105049-
105050- /*
105051- * Is there a mapping abutting this one below?
105052- *
105053- * That's only ok if it's the same stack mapping
105054- * that has gotten split..
105055- */
105056- if (prev && prev->vm_end == address)
105057- return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
105058-
105059- return expand_downwards(vma, address - PAGE_SIZE);
105060- }
105061- if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
105062- struct vm_area_struct *next = vma->vm_next;
105063-
105064- /* As VM_GROWSDOWN but s/below/above/ */
105065- if (next && next->vm_start == address + PAGE_SIZE)
105066- return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
105067-
105068- return expand_upwards(vma, address + PAGE_SIZE);
105069- }
105070- return 0;
105071-}
105072-
105073-/*
105074 * We enter with non-exclusive mmap_sem (to exclude vma changes,
105075 * but allow concurrent faults), and pte mapped but not yet locked.
105076 * We return with mmap_sem still held, but pte unmapped and unlocked.
105077@@ -2568,27 +2759,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
105078 unsigned int flags)
105079 {
105080 struct mem_cgroup *memcg;
105081- struct page *page;
105082+ struct page *page = NULL;
105083 spinlock_t *ptl;
105084 pte_t entry;
105085
105086- pte_unmap(page_table);
105087-
105088- /* Check if we need to add a guard page to the stack */
105089- if (check_stack_guard_page(vma, address) < 0)
105090- return VM_FAULT_SIGSEGV;
105091-
105092- /* Use the zero-page for reads */
105093 if (!(flags & FAULT_FLAG_WRITE) && !mm_forbids_zeropage(mm)) {
105094 entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
105095 vma->vm_page_prot));
105096- page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
105097+ ptl = pte_lockptr(mm, pmd);
105098+ spin_lock(ptl);
105099 if (!pte_none(*page_table))
105100 goto unlock;
105101 goto setpte;
105102 }
105103
105104 /* Allocate our own private page. */
105105+ pte_unmap(page_table);
105106+
105107 if (unlikely(anon_vma_prepare(vma)))
105108 goto oom;
105109 page = alloc_zeroed_user_highpage_movable(vma, address);
105110@@ -2612,6 +2799,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
105111 if (!pte_none(*page_table))
105112 goto release;
105113
105114+#ifdef CONFIG_PAX_SEGMEXEC
105115+ if (pax_find_mirror_vma(vma))
105116+ BUG_ON(!trylock_page(page));
105117+#endif
105118+
105119 inc_mm_counter_fast(mm, MM_ANONPAGES);
105120 page_add_new_anon_rmap(page, vma, address);
105121 mem_cgroup_commit_charge(page, memcg, false);
105122@@ -2621,6 +2813,12 @@ setpte:
105123
105124 /* No need to invalidate - it was non-present before */
105125 update_mmu_cache(vma, address, page_table);
105126+
105127+#ifdef CONFIG_PAX_SEGMEXEC
105128+ if (page)
105129+ pax_mirror_anon_pte(vma, address, page, ptl);
105130+#endif
105131+
105132 unlock:
105133 pte_unmap_unlock(page_table, ptl);
105134 return 0;
105135@@ -2853,6 +3051,11 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105136 return ret;
105137 }
105138 do_set_pte(vma, address, fault_page, pte, false, false);
105139+
105140+#ifdef CONFIG_PAX_SEGMEXEC
105141+ pax_mirror_file_pte(vma, address, fault_page, ptl);
105142+#endif
105143+
105144 unlock_page(fault_page);
105145 unlock_out:
105146 pte_unmap_unlock(pte, ptl);
105147@@ -2904,7 +3107,18 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105148 }
105149 goto uncharge_out;
105150 }
105151+
105152+#ifdef CONFIG_PAX_SEGMEXEC
105153+ if (pax_find_mirror_vma(vma))
105154+ BUG_ON(!trylock_page(new_page));
105155+#endif
105156+
105157 do_set_pte(vma, address, new_page, pte, true, true);
105158+
105159+#ifdef CONFIG_PAX_SEGMEXEC
105160+ pax_mirror_anon_pte(vma, address, new_page, ptl);
105161+#endif
105162+
105163 mem_cgroup_commit_charge(new_page, memcg, false);
105164 lru_cache_add_active_or_unevictable(new_page, vma);
105165 pte_unmap_unlock(pte, ptl);
105166@@ -2962,6 +3176,11 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105167 return ret;
105168 }
105169 do_set_pte(vma, address, fault_page, pte, true, false);
105170+
105171+#ifdef CONFIG_PAX_SEGMEXEC
105172+ pax_mirror_file_pte(vma, address, fault_page, ptl);
105173+#endif
105174+
105175 pte_unmap_unlock(pte, ptl);
105176
105177 if (set_page_dirty(fault_page))
105178@@ -3185,6 +3404,12 @@ static int handle_pte_fault(struct mm_struct *mm,
105179 if (flags & FAULT_FLAG_WRITE)
105180 flush_tlb_fix_spurious_fault(vma, address);
105181 }
105182+
105183+#ifdef CONFIG_PAX_SEGMEXEC
105184+ pax_mirror_pte(vma, address, pte, pmd, ptl);
105185+ return 0;
105186+#endif
105187+
105188 unlock:
105189 pte_unmap_unlock(pte, ptl);
105190 return 0;
105191@@ -3204,9 +3429,41 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105192 pmd_t *pmd;
105193 pte_t *pte;
105194
105195+#ifdef CONFIG_PAX_SEGMEXEC
105196+ struct vm_area_struct *vma_m;
105197+#endif
105198+
105199 if (unlikely(is_vm_hugetlb_page(vma)))
105200 return hugetlb_fault(mm, vma, address, flags);
105201
105202+#ifdef CONFIG_PAX_SEGMEXEC
105203+ vma_m = pax_find_mirror_vma(vma);
105204+ if (vma_m) {
105205+ unsigned long address_m;
105206+ pgd_t *pgd_m;
105207+ pud_t *pud_m;
105208+ pmd_t *pmd_m;
105209+
105210+ if (vma->vm_start > vma_m->vm_start) {
105211+ address_m = address;
105212+ address -= SEGMEXEC_TASK_SIZE;
105213+ vma = vma_m;
105214+ } else
105215+ address_m = address + SEGMEXEC_TASK_SIZE;
105216+
105217+ pgd_m = pgd_offset(mm, address_m);
105218+ pud_m = pud_alloc(mm, pgd_m, address_m);
105219+ if (!pud_m)
105220+ return VM_FAULT_OOM;
105221+ pmd_m = pmd_alloc(mm, pud_m, address_m);
105222+ if (!pmd_m)
105223+ return VM_FAULT_OOM;
105224+ if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
105225+ return VM_FAULT_OOM;
105226+ pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
105227+ }
105228+#endif
105229+
105230 pgd = pgd_offset(mm, address);
105231 pud = pud_alloc(mm, pgd, address);
105232 if (!pud)
105233@@ -3341,6 +3598,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
105234 spin_unlock(&mm->page_table_lock);
105235 return 0;
105236 }
105237+
105238+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
105239+{
105240+ pud_t *new = pud_alloc_one(mm, address);
105241+ if (!new)
105242+ return -ENOMEM;
105243+
105244+ smp_wmb(); /* See comment in __pte_alloc */
105245+
105246+ spin_lock(&mm->page_table_lock);
105247+ if (pgd_present(*pgd)) /* Another has populated it */
105248+ pud_free(mm, new);
105249+ else
105250+ pgd_populate_kernel(mm, pgd, new);
105251+ spin_unlock(&mm->page_table_lock);
105252+ return 0;
105253+}
105254 #endif /* __PAGETABLE_PUD_FOLDED */
105255
105256 #ifndef __PAGETABLE_PMD_FOLDED
105257@@ -3373,6 +3647,32 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
105258 spin_unlock(&mm->page_table_lock);
105259 return 0;
105260 }
105261+
105262+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
105263+{
105264+ pmd_t *new = pmd_alloc_one(mm, address);
105265+ if (!new)
105266+ return -ENOMEM;
105267+
105268+ smp_wmb(); /* See comment in __pte_alloc */
105269+
105270+ spin_lock(&mm->page_table_lock);
105271+#ifndef __ARCH_HAS_4LEVEL_HACK
105272+ if (!pud_present(*pud)) {
105273+ mm_inc_nr_pmds(mm);
105274+ pud_populate_kernel(mm, pud, new);
105275+ } else /* Another has populated it */
105276+ pmd_free(mm, new);
105277+#else
105278+ if (!pgd_present(*pud)) {
105279+ mm_inc_nr_pmds(mm);
105280+ pgd_populate_kernel(mm, pud, new);
105281+ } else /* Another has populated it */
105282+ pmd_free(mm, new);
105283+#endif /* __ARCH_HAS_4LEVEL_HACK */
105284+ spin_unlock(&mm->page_table_lock);
105285+ return 0;
105286+}
105287 #endif /* __PAGETABLE_PMD_FOLDED */
105288
105289 static int __follow_pte(struct mm_struct *mm, unsigned long address,
105290@@ -3482,8 +3782,8 @@ out:
105291 return ret;
105292 }
105293
105294-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
105295- void *buf, int len, int write)
105296+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
105297+ void *buf, size_t len, int write)
105298 {
105299 resource_size_t phys_addr;
105300 unsigned long prot = 0;
105301@@ -3509,8 +3809,8 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
105302 * Access another process' address space as given in mm. If non-NULL, use the
105303 * given task for page fault accounting.
105304 */
105305-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105306- unsigned long addr, void *buf, int len, int write)
105307+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105308+ unsigned long addr, void *buf, size_t len, int write)
105309 {
105310 struct vm_area_struct *vma;
105311 void *old_buf = buf;
105312@@ -3518,7 +3818,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105313 down_read(&mm->mmap_sem);
105314 /* ignore errors, just check how much was successfully transferred */
105315 while (len) {
105316- int bytes, ret, offset;
105317+ ssize_t bytes, ret, offset;
105318 void *maddr;
105319 struct page *page = NULL;
105320
105321@@ -3579,8 +3879,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105322 *
105323 * The caller must hold a reference on @mm.
105324 */
105325-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
105326- void *buf, int len, int write)
105327+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
105328+ void *buf, size_t len, int write)
105329 {
105330 return __access_remote_vm(NULL, mm, addr, buf, len, write);
105331 }
105332@@ -3590,11 +3890,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
105333 * Source/target buffer must be kernel space,
105334 * Do not walk the page table directly, use get_user_pages
105335 */
105336-int access_process_vm(struct task_struct *tsk, unsigned long addr,
105337- void *buf, int len, int write)
105338+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
105339+ void *buf, size_t len, int write)
105340 {
105341 struct mm_struct *mm;
105342- int ret;
105343+ ssize_t ret;
105344
105345 mm = get_task_mm(tsk);
105346 if (!mm)
105347diff --git a/mm/mempolicy.c b/mm/mempolicy.c
105348index de5dc5e..68a4ea3 100644
105349--- a/mm/mempolicy.c
105350+++ b/mm/mempolicy.c
105351@@ -703,6 +703,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
105352 unsigned long vmstart;
105353 unsigned long vmend;
105354
105355+#ifdef CONFIG_PAX_SEGMEXEC
105356+ struct vm_area_struct *vma_m;
105357+#endif
105358+
105359 vma = find_vma(mm, start);
105360 if (!vma || vma->vm_start > start)
105361 return -EFAULT;
105362@@ -746,6 +750,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
105363 err = vma_replace_policy(vma, new_pol);
105364 if (err)
105365 goto out;
105366+
105367+#ifdef CONFIG_PAX_SEGMEXEC
105368+ vma_m = pax_find_mirror_vma(vma);
105369+ if (vma_m) {
105370+ err = vma_replace_policy(vma_m, new_pol);
105371+ if (err)
105372+ goto out;
105373+ }
105374+#endif
105375+
105376 }
105377
105378 out:
105379@@ -1160,6 +1174,17 @@ static long do_mbind(unsigned long start, unsigned long len,
105380
105381 if (end < start)
105382 return -EINVAL;
105383+
105384+#ifdef CONFIG_PAX_SEGMEXEC
105385+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
105386+ if (end > SEGMEXEC_TASK_SIZE)
105387+ return -EINVAL;
105388+ } else
105389+#endif
105390+
105391+ if (end > TASK_SIZE)
105392+ return -EINVAL;
105393+
105394 if (end == start)
105395 return 0;
105396
105397@@ -1385,8 +1410,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
105398 */
105399 tcred = __task_cred(task);
105400 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
105401- !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
105402- !capable(CAP_SYS_NICE)) {
105403+ !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
105404 rcu_read_unlock();
105405 err = -EPERM;
105406 goto out_put;
105407@@ -1417,6 +1441,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
105408 goto out;
105409 }
105410
105411+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
105412+ if (mm != current->mm &&
105413+ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
105414+ mmput(mm);
105415+ err = -EPERM;
105416+ goto out;
105417+ }
105418+#endif
105419+
105420 err = do_migrate_pages(mm, old, new,
105421 capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
105422
105423diff --git a/mm/migrate.c b/mm/migrate.c
105424index 85e0426..be49beb 100644
105425--- a/mm/migrate.c
105426+++ b/mm/migrate.c
105427@@ -1472,8 +1472,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
105428 */
105429 tcred = __task_cred(task);
105430 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
105431- !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
105432- !capable(CAP_SYS_NICE)) {
105433+ !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
105434 rcu_read_unlock();
105435 err = -EPERM;
105436 goto out;
105437diff --git a/mm/mlock.c b/mm/mlock.c
105438index 8a54cd2..92f1747 100644
105439--- a/mm/mlock.c
105440+++ b/mm/mlock.c
105441@@ -14,6 +14,7 @@
105442 #include <linux/pagevec.h>
105443 #include <linux/mempolicy.h>
105444 #include <linux/syscalls.h>
105445+#include <linux/security.h>
105446 #include <linux/sched.h>
105447 #include <linux/export.h>
105448 #include <linux/rmap.h>
105449@@ -613,7 +614,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
105450 {
105451 unsigned long nstart, end, tmp;
105452 struct vm_area_struct * vma, * prev;
105453- int error;
105454+ int error = 0;
105455
105456 VM_BUG_ON(start & ~PAGE_MASK);
105457 VM_BUG_ON(len != PAGE_ALIGN(len));
105458@@ -622,6 +623,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
105459 return -EINVAL;
105460 if (end == start)
105461 return 0;
105462+ if (end > TASK_SIZE)
105463+ return -EINVAL;
105464+
105465 vma = find_vma(current->mm, start);
105466 if (!vma || vma->vm_start > start)
105467 return -ENOMEM;
105468@@ -633,6 +637,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
105469 for (nstart = start ; ; ) {
105470 vm_flags_t newflags;
105471
105472+#ifdef CONFIG_PAX_SEGMEXEC
105473+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
105474+ break;
105475+#endif
105476+
105477 /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
105478
105479 newflags = vma->vm_flags & ~VM_LOCKED;
105480@@ -746,6 +755,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
105481 locked += current->mm->locked_vm;
105482
105483 /* check against resource limits */
105484+ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
105485 if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
105486 error = do_mlock(start, len, 1);
105487
105488@@ -783,6 +793,11 @@ static int do_mlockall(int flags)
105489 for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
105490 vm_flags_t newflags;
105491
105492+#ifdef CONFIG_PAX_SEGMEXEC
105493+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
105494+ break;
105495+#endif
105496+
105497 newflags = vma->vm_flags & ~VM_LOCKED;
105498 if (flags & MCL_CURRENT)
105499 newflags |= VM_LOCKED;
105500@@ -814,8 +829,10 @@ SYSCALL_DEFINE1(mlockall, int, flags)
105501 lock_limit >>= PAGE_SHIFT;
105502
105503 ret = -ENOMEM;
105504+
105505+ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
105506+
105507 down_write(&current->mm->mmap_sem);
105508-
105509 if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
105510 capable(CAP_IPC_LOCK))
105511 ret = do_mlockall(flags);
105512diff --git a/mm/mm_init.c b/mm/mm_init.c
105513index 5f420f7..dd42fb1b 100644
105514--- a/mm/mm_init.c
105515+++ b/mm/mm_init.c
105516@@ -177,7 +177,7 @@ static int __meminit mm_compute_batch_notifier(struct notifier_block *self,
105517 return NOTIFY_OK;
105518 }
105519
105520-static struct notifier_block compute_batch_nb __meminitdata = {
105521+static struct notifier_block compute_batch_nb __meminitconst = {
105522 .notifier_call = mm_compute_batch_notifier,
105523 .priority = IPC_CALLBACK_PRI, /* use lowest priority */
105524 };
105525diff --git a/mm/mmap.c b/mm/mmap.c
105526index 9ec50a3..0476e2d 100644
105527--- a/mm/mmap.c
105528+++ b/mm/mmap.c
105529@@ -41,6 +41,7 @@
105530 #include <linux/notifier.h>
105531 #include <linux/memory.h>
105532 #include <linux/printk.h>
105533+#include <linux/random.h>
105534
105535 #include <asm/uaccess.h>
105536 #include <asm/cacheflush.h>
105537@@ -57,6 +58,16 @@
105538 #define arch_rebalance_pgtables(addr, len) (addr)
105539 #endif
105540
105541+static inline void verify_mm_writelocked(struct mm_struct *mm)
105542+{
105543+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
105544+ if (unlikely(down_read_trylock(&mm->mmap_sem))) {
105545+ up_read(&mm->mmap_sem);
105546+ BUG();
105547+ }
105548+#endif
105549+}
105550+
105551 static void unmap_region(struct mm_struct *mm,
105552 struct vm_area_struct *vma, struct vm_area_struct *prev,
105553 unsigned long start, unsigned long end);
105554@@ -76,16 +87,25 @@ static void unmap_region(struct mm_struct *mm,
105555 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
105556 *
105557 */
105558-pgprot_t protection_map[16] = {
105559+pgprot_t protection_map[16] __read_only = {
105560 __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
105561 __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
105562 };
105563
105564-pgprot_t vm_get_page_prot(unsigned long vm_flags)
105565+pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
105566 {
105567- return __pgprot(pgprot_val(protection_map[vm_flags &
105568+ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
105569 (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
105570 pgprot_val(arch_vm_get_page_prot(vm_flags)));
105571+
105572+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
105573+ if (!(__supported_pte_mask & _PAGE_NX) &&
105574+ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
105575+ (vm_flags & (VM_READ | VM_WRITE)))
105576+ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
105577+#endif
105578+
105579+ return prot;
105580 }
105581 EXPORT_SYMBOL(vm_get_page_prot);
105582
105583@@ -114,6 +134,7 @@ unsigned long sysctl_overcommit_kbytes __read_mostly;
105584 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
105585 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
105586 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
105587+unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
105588 /*
105589 * Make sure vm_committed_as in one cacheline and not cacheline shared with
105590 * other variables. It can be updated by several CPUs frequently.
105591@@ -271,6 +292,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
105592 struct vm_area_struct *next = vma->vm_next;
105593
105594 might_sleep();
105595+ BUG_ON(vma->vm_mirror);
105596 if (vma->vm_ops && vma->vm_ops->close)
105597 vma->vm_ops->close(vma);
105598 if (vma->vm_file)
105599@@ -284,6 +306,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len);
105600
105601 SYSCALL_DEFINE1(brk, unsigned long, brk)
105602 {
105603+ unsigned long rlim;
105604 unsigned long retval;
105605 unsigned long newbrk, oldbrk;
105606 struct mm_struct *mm = current->mm;
105607@@ -314,7 +337,13 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
105608 * segment grow beyond its set limit the in case where the limit is
105609 * not page aligned -Ram Gupta
105610 */
105611- if (check_data_rlimit(rlimit(RLIMIT_DATA), brk, mm->start_brk,
105612+ rlim = rlimit(RLIMIT_DATA);
105613+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
105614+ /* force a minimum 16MB brk heap on setuid/setgid binaries */
105615+ if (rlim < PAGE_SIZE && (get_dumpable(mm) != SUID_DUMP_USER) && gr_is_global_nonroot(current_uid()))
105616+ rlim = 4096 * PAGE_SIZE;
105617+#endif
105618+ if (check_data_rlimit(rlim, brk, mm->start_brk,
105619 mm->end_data, mm->start_data))
105620 goto out;
105621
105622@@ -967,6 +996,12 @@ static int
105623 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
105624 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
105625 {
105626+
105627+#ifdef CONFIG_PAX_SEGMEXEC
105628+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
105629+ return 0;
105630+#endif
105631+
105632 if (is_mergeable_vma(vma, file, vm_flags) &&
105633 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
105634 if (vma->vm_pgoff == vm_pgoff)
105635@@ -986,6 +1021,12 @@ static int
105636 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
105637 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
105638 {
105639+
105640+#ifdef CONFIG_PAX_SEGMEXEC
105641+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
105642+ return 0;
105643+#endif
105644+
105645 if (is_mergeable_vma(vma, file, vm_flags) &&
105646 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
105647 pgoff_t vm_pglen;
105648@@ -1035,6 +1076,13 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105649 struct vm_area_struct *area, *next;
105650 int err;
105651
105652+#ifdef CONFIG_PAX_SEGMEXEC
105653+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
105654+ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
105655+
105656+ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
105657+#endif
105658+
105659 /*
105660 * We later require that vma->vm_flags == vm_flags,
105661 * so this tests vma->vm_flags & VM_SPECIAL, too.
105662@@ -1050,6 +1098,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105663 if (next && next->vm_end == end) /* cases 6, 7, 8 */
105664 next = next->vm_next;
105665
105666+#ifdef CONFIG_PAX_SEGMEXEC
105667+ if (prev)
105668+ prev_m = pax_find_mirror_vma(prev);
105669+ if (area)
105670+ area_m = pax_find_mirror_vma(area);
105671+ if (next)
105672+ next_m = pax_find_mirror_vma(next);
105673+#endif
105674+
105675 /*
105676 * Can it merge with the predecessor?
105677 */
105678@@ -1069,9 +1126,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105679 /* cases 1, 6 */
105680 err = vma_adjust(prev, prev->vm_start,
105681 next->vm_end, prev->vm_pgoff, NULL);
105682- } else /* cases 2, 5, 7 */
105683+
105684+#ifdef CONFIG_PAX_SEGMEXEC
105685+ if (!err && prev_m)
105686+ err = vma_adjust(prev_m, prev_m->vm_start,
105687+ next_m->vm_end, prev_m->vm_pgoff, NULL);
105688+#endif
105689+
105690+ } else { /* cases 2, 5, 7 */
105691 err = vma_adjust(prev, prev->vm_start,
105692 end, prev->vm_pgoff, NULL);
105693+
105694+#ifdef CONFIG_PAX_SEGMEXEC
105695+ if (!err && prev_m)
105696+ err = vma_adjust(prev_m, prev_m->vm_start,
105697+ end_m, prev_m->vm_pgoff, NULL);
105698+#endif
105699+
105700+ }
105701 if (err)
105702 return NULL;
105703 khugepaged_enter_vma_merge(prev, vm_flags);
105704@@ -1085,12 +1157,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105705 mpol_equal(policy, vma_policy(next)) &&
105706 can_vma_merge_before(next, vm_flags,
105707 anon_vma, file, pgoff+pglen)) {
105708- if (prev && addr < prev->vm_end) /* case 4 */
105709+ if (prev && addr < prev->vm_end) { /* case 4 */
105710 err = vma_adjust(prev, prev->vm_start,
105711 addr, prev->vm_pgoff, NULL);
105712- else /* cases 3, 8 */
105713+
105714+#ifdef CONFIG_PAX_SEGMEXEC
105715+ if (!err && prev_m)
105716+ err = vma_adjust(prev_m, prev_m->vm_start,
105717+ addr_m, prev_m->vm_pgoff, NULL);
105718+#endif
105719+
105720+ } else { /* cases 3, 8 */
105721 err = vma_adjust(area, addr, next->vm_end,
105722 next->vm_pgoff - pglen, NULL);
105723+
105724+#ifdef CONFIG_PAX_SEGMEXEC
105725+ if (!err && area_m)
105726+ err = vma_adjust(area_m, addr_m, next_m->vm_end,
105727+ next_m->vm_pgoff - pglen, NULL);
105728+#endif
105729+
105730+ }
105731 if (err)
105732 return NULL;
105733 khugepaged_enter_vma_merge(area, vm_flags);
105734@@ -1199,8 +1286,10 @@ none:
105735 void vm_stat_account(struct mm_struct *mm, unsigned long flags,
105736 struct file *file, long pages)
105737 {
105738- const unsigned long stack_flags
105739- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
105740+
105741+#ifdef CONFIG_PAX_RANDMMAP
105742+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
105743+#endif
105744
105745 mm->total_vm += pages;
105746
105747@@ -1208,7 +1297,7 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
105748 mm->shared_vm += pages;
105749 if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
105750 mm->exec_vm += pages;
105751- } else if (flags & stack_flags)
105752+ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
105753 mm->stack_vm += pages;
105754 }
105755 #endif /* CONFIG_PROC_FS */
105756@@ -1238,6 +1327,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
105757 locked += mm->locked_vm;
105758 lock_limit = rlimit(RLIMIT_MEMLOCK);
105759 lock_limit >>= PAGE_SHIFT;
105760+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
105761 if (locked > lock_limit && !capable(CAP_IPC_LOCK))
105762 return -EAGAIN;
105763 }
105764@@ -1264,7 +1354,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105765 * (the exception is when the underlying filesystem is noexec
105766 * mounted, in which case we dont add PROT_EXEC.)
105767 */
105768- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
105769+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
105770 if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
105771 prot |= PROT_EXEC;
105772
105773@@ -1290,7 +1380,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105774 /* Obtain the address to map to. we verify (or select) it and ensure
105775 * that it represents a valid section of the address space.
105776 */
105777- addr = get_unmapped_area(file, addr, len, pgoff, flags);
105778+ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
105779 if (addr & ~PAGE_MASK)
105780 return addr;
105781
105782@@ -1301,6 +1391,43 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105783 vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
105784 mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
105785
105786+#ifdef CONFIG_PAX_MPROTECT
105787+ if (mm->pax_flags & MF_PAX_MPROTECT) {
105788+
105789+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
105790+ if (file && !pgoff && (vm_flags & VM_EXEC) && mm->binfmt &&
105791+ mm->binfmt->handle_mmap)
105792+ mm->binfmt->handle_mmap(file);
105793+#endif
105794+
105795+#ifndef CONFIG_PAX_MPROTECT_COMPAT
105796+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
105797+ gr_log_rwxmmap(file);
105798+
105799+#ifdef CONFIG_PAX_EMUPLT
105800+ vm_flags &= ~VM_EXEC;
105801+#else
105802+ return -EPERM;
105803+#endif
105804+
105805+ }
105806+
105807+ if (!(vm_flags & VM_EXEC))
105808+ vm_flags &= ~VM_MAYEXEC;
105809+#else
105810+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
105811+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
105812+#endif
105813+ else
105814+ vm_flags &= ~VM_MAYWRITE;
105815+ }
105816+#endif
105817+
105818+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
105819+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
105820+ vm_flags &= ~VM_PAGEEXEC;
105821+#endif
105822+
105823 if (flags & MAP_LOCKED)
105824 if (!can_do_mlock())
105825 return -EPERM;
105826@@ -1388,6 +1515,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105827 vm_flags |= VM_NORESERVE;
105828 }
105829
105830+ if (!gr_acl_handle_mmap(file, prot))
105831+ return -EACCES;
105832+
105833 addr = mmap_region(file, addr, len, vm_flags, pgoff);
105834 if (!IS_ERR_VALUE(addr) &&
105835 ((vm_flags & VM_LOCKED) ||
105836@@ -1481,7 +1611,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
105837 vm_flags_t vm_flags = vma->vm_flags;
105838
105839 /* If it was private or non-writable, the write bit is already clear */
105840- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
105841+ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
105842 return 0;
105843
105844 /* The backer wishes to know when pages are first written to? */
105845@@ -1532,7 +1662,22 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
105846 struct rb_node **rb_link, *rb_parent;
105847 unsigned long charged = 0;
105848
105849+#ifdef CONFIG_PAX_SEGMEXEC
105850+ struct vm_area_struct *vma_m = NULL;
105851+#endif
105852+
105853+ /*
105854+ * mm->mmap_sem is required to protect against another thread
105855+ * changing the mappings in case we sleep.
105856+ */
105857+ verify_mm_writelocked(mm);
105858+
105859 /* Check against address space limit. */
105860+
105861+#ifdef CONFIG_PAX_RANDMMAP
105862+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
105863+#endif
105864+
105865 if (!may_expand_vm(mm, len >> PAGE_SHIFT)) {
105866 unsigned long nr_pages;
105867
105868@@ -1551,11 +1696,10 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
105869
105870 /* Clear old maps */
105871 error = -ENOMEM;
105872-munmap_back:
105873 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
105874 if (do_munmap(mm, addr, len))
105875 return -ENOMEM;
105876- goto munmap_back;
105877+ BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
105878 }
105879
105880 /*
105881@@ -1586,6 +1730,16 @@ munmap_back:
105882 goto unacct_error;
105883 }
105884
105885+#ifdef CONFIG_PAX_SEGMEXEC
105886+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
105887+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
105888+ if (!vma_m) {
105889+ error = -ENOMEM;
105890+ goto free_vma;
105891+ }
105892+ }
105893+#endif
105894+
105895 vma->vm_mm = mm;
105896 vma->vm_start = addr;
105897 vma->vm_end = addr + len;
105898@@ -1616,6 +1770,13 @@ munmap_back:
105899 if (error)
105900 goto unmap_and_free_vma;
105901
105902+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
105903+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
105904+ vma->vm_flags |= VM_PAGEEXEC;
105905+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
105906+ }
105907+#endif
105908+
105909 /* Can addr have changed??
105910 *
105911 * Answer: Yes, several device drivers can do it in their
105912@@ -1634,6 +1795,12 @@ munmap_back:
105913 }
105914
105915 vma_link(mm, vma, prev, rb_link, rb_parent);
105916+
105917+#ifdef CONFIG_PAX_SEGMEXEC
105918+ if (vma_m)
105919+ BUG_ON(pax_mirror_vma(vma_m, vma));
105920+#endif
105921+
105922 /* Once vma denies write, undo our temporary denial count */
105923 if (file) {
105924 if (vm_flags & VM_SHARED)
105925@@ -1646,6 +1813,7 @@ out:
105926 perf_event_mmap(vma);
105927
105928 vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
105929+ track_exec_limit(mm, addr, addr + len, vm_flags);
105930 if (vm_flags & VM_LOCKED) {
105931 if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
105932 vma == get_gate_vma(current->mm)))
105933@@ -1683,6 +1851,12 @@ allow_write_and_free_vma:
105934 if (vm_flags & VM_DENYWRITE)
105935 allow_write_access(file);
105936 free_vma:
105937+
105938+#ifdef CONFIG_PAX_SEGMEXEC
105939+ if (vma_m)
105940+ kmem_cache_free(vm_area_cachep, vma_m);
105941+#endif
105942+
105943 kmem_cache_free(vm_area_cachep, vma);
105944 unacct_error:
105945 if (charged)
105946@@ -1690,7 +1864,63 @@ unacct_error:
105947 return error;
105948 }
105949
105950-unsigned long unmapped_area(struct vm_unmapped_area_info *info)
105951+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
105952+unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
105953+{
105954+ if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
105955+ return ((prandom_u32() & 0xFF) + 1) << PAGE_SHIFT;
105956+
105957+ return 0;
105958+}
105959+#endif
105960+
105961+bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
105962+{
105963+ if (!vma) {
105964+#ifdef CONFIG_STACK_GROWSUP
105965+ if (addr > sysctl_heap_stack_gap)
105966+ vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
105967+ else
105968+ vma = find_vma(current->mm, 0);
105969+ if (vma && (vma->vm_flags & VM_GROWSUP))
105970+ return false;
105971+#endif
105972+ return true;
105973+ }
105974+
105975+ if (addr + len > vma->vm_start)
105976+ return false;
105977+
105978+ if (vma->vm_flags & VM_GROWSDOWN)
105979+ return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
105980+#ifdef CONFIG_STACK_GROWSUP
105981+ else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
105982+ return addr - vma->vm_prev->vm_end >= sysctl_heap_stack_gap;
105983+#endif
105984+ else if (offset)
105985+ return offset <= vma->vm_start - addr - len;
105986+
105987+ return true;
105988+}
105989+
105990+unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
105991+{
105992+ if (vma->vm_start < len)
105993+ return -ENOMEM;
105994+
105995+ if (!(vma->vm_flags & VM_GROWSDOWN)) {
105996+ if (offset <= vma->vm_start - len)
105997+ return vma->vm_start - len - offset;
105998+ else
105999+ return -ENOMEM;
106000+ }
106001+
106002+ if (sysctl_heap_stack_gap <= vma->vm_start - len)
106003+ return vma->vm_start - len - sysctl_heap_stack_gap;
106004+ return -ENOMEM;
106005+}
106006+
106007+unsigned long unmapped_area(const struct vm_unmapped_area_info *info)
106008 {
106009 /*
106010 * We implement the search by looking for an rbtree node that
106011@@ -1738,11 +1968,29 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
106012 }
106013 }
106014
106015- gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
106016+ gap_start = vma->vm_prev ? vma->vm_prev->vm_end: 0;
106017 check_current:
106018 /* Check if current node has a suitable gap */
106019 if (gap_start > high_limit)
106020 return -ENOMEM;
106021+
106022+ if (gap_end - gap_start > info->threadstack_offset)
106023+ gap_start += info->threadstack_offset;
106024+ else
106025+ gap_start = gap_end;
106026+
106027+ if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
106028+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106029+ gap_start += sysctl_heap_stack_gap;
106030+ else
106031+ gap_start = gap_end;
106032+ }
106033+ if (vma->vm_flags & VM_GROWSDOWN) {
106034+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106035+ gap_end -= sysctl_heap_stack_gap;
106036+ else
106037+ gap_end = gap_start;
106038+ }
106039 if (gap_end >= low_limit && gap_end - gap_start >= length)
106040 goto found;
106041
106042@@ -1792,7 +2040,7 @@ found:
106043 return gap_start;
106044 }
106045
106046-unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
106047+unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info)
106048 {
106049 struct mm_struct *mm = current->mm;
106050 struct vm_area_struct *vma;
106051@@ -1846,6 +2094,24 @@ check_current:
106052 gap_end = vma->vm_start;
106053 if (gap_end < low_limit)
106054 return -ENOMEM;
106055+
106056+ if (gap_end - gap_start > info->threadstack_offset)
106057+ gap_end -= info->threadstack_offset;
106058+ else
106059+ gap_end = gap_start;
106060+
106061+ if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
106062+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106063+ gap_start += sysctl_heap_stack_gap;
106064+ else
106065+ gap_start = gap_end;
106066+ }
106067+ if (vma->vm_flags & VM_GROWSDOWN) {
106068+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106069+ gap_end -= sysctl_heap_stack_gap;
106070+ else
106071+ gap_end = gap_start;
106072+ }
106073 if (gap_start <= high_limit && gap_end - gap_start >= length)
106074 goto found;
106075
106076@@ -1909,6 +2175,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106077 struct mm_struct *mm = current->mm;
106078 struct vm_area_struct *vma;
106079 struct vm_unmapped_area_info info;
106080+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
106081
106082 if (len > TASK_SIZE - mmap_min_addr)
106083 return -ENOMEM;
106084@@ -1916,11 +2183,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106085 if (flags & MAP_FIXED)
106086 return addr;
106087
106088+#ifdef CONFIG_PAX_RANDMMAP
106089+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
106090+#endif
106091+
106092 if (addr) {
106093 addr = PAGE_ALIGN(addr);
106094 vma = find_vma(mm, addr);
106095 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
106096- (!vma || addr + len <= vma->vm_start))
106097+ check_heap_stack_gap(vma, addr, len, offset))
106098 return addr;
106099 }
106100
106101@@ -1929,6 +2200,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106102 info.low_limit = mm->mmap_base;
106103 info.high_limit = TASK_SIZE;
106104 info.align_mask = 0;
106105+ info.threadstack_offset = offset;
106106 return vm_unmapped_area(&info);
106107 }
106108 #endif
106109@@ -1947,6 +2219,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106110 struct mm_struct *mm = current->mm;
106111 unsigned long addr = addr0;
106112 struct vm_unmapped_area_info info;
106113+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
106114
106115 /* requested length too big for entire address space */
106116 if (len > TASK_SIZE - mmap_min_addr)
106117@@ -1955,12 +2228,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106118 if (flags & MAP_FIXED)
106119 return addr;
106120
106121+#ifdef CONFIG_PAX_RANDMMAP
106122+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
106123+#endif
106124+
106125 /* requesting a specific address */
106126 if (addr) {
106127 addr = PAGE_ALIGN(addr);
106128 vma = find_vma(mm, addr);
106129 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
106130- (!vma || addr + len <= vma->vm_start))
106131+ check_heap_stack_gap(vma, addr, len, offset))
106132 return addr;
106133 }
106134
106135@@ -1969,6 +2246,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106136 info.low_limit = max(PAGE_SIZE, mmap_min_addr);
106137 info.high_limit = mm->mmap_base;
106138 info.align_mask = 0;
106139+ info.threadstack_offset = offset;
106140 addr = vm_unmapped_area(&info);
106141
106142 /*
106143@@ -1981,6 +2259,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106144 VM_BUG_ON(addr != -ENOMEM);
106145 info.flags = 0;
106146 info.low_limit = TASK_UNMAPPED_BASE;
106147+
106148+#ifdef CONFIG_PAX_RANDMMAP
106149+ if (mm->pax_flags & MF_PAX_RANDMMAP)
106150+ info.low_limit += mm->delta_mmap;
106151+#endif
106152+
106153 info.high_limit = TASK_SIZE;
106154 addr = vm_unmapped_area(&info);
106155 }
106156@@ -2081,6 +2365,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
106157 return vma;
106158 }
106159
106160+#ifdef CONFIG_PAX_SEGMEXEC
106161+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
106162+{
106163+ struct vm_area_struct *vma_m;
106164+
106165+ BUG_ON(!vma || vma->vm_start >= vma->vm_end);
106166+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
106167+ BUG_ON(vma->vm_mirror);
106168+ return NULL;
106169+ }
106170+ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
106171+ vma_m = vma->vm_mirror;
106172+ BUG_ON(!vma_m || vma_m->vm_mirror != vma);
106173+ BUG_ON(vma->vm_file != vma_m->vm_file);
106174+ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
106175+ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
106176+ BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
106177+ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
106178+ return vma_m;
106179+}
106180+#endif
106181+
106182 /*
106183 * Verify that the stack growth is acceptable and
106184 * update accounting. This is shared with both the
106185@@ -2098,8 +2404,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106186
106187 /* Stack limit test */
106188 actual_size = size;
106189- if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
106190- actual_size -= PAGE_SIZE;
106191+ gr_learn_resource(current, RLIMIT_STACK, actual_size, 1);
106192 if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
106193 return -ENOMEM;
106194
106195@@ -2110,6 +2415,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106196 locked = mm->locked_vm + grow;
106197 limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
106198 limit >>= PAGE_SHIFT;
106199+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
106200 if (locked > limit && !capable(CAP_IPC_LOCK))
106201 return -ENOMEM;
106202 }
106203@@ -2139,37 +2445,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106204 * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
106205 * vma is the last one with address > vma->vm_end. Have to extend vma.
106206 */
106207+#ifndef CONFIG_IA64
106208+static
106209+#endif
106210 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
106211 {
106212 int error;
106213+ bool locknext;
106214
106215 if (!(vma->vm_flags & VM_GROWSUP))
106216 return -EFAULT;
106217
106218+ /* Also guard against wrapping around to address 0. */
106219+ if (address < PAGE_ALIGN(address+1))
106220+ address = PAGE_ALIGN(address+1);
106221+ else
106222+ return -ENOMEM;
106223+
106224 /*
106225 * We must make sure the anon_vma is allocated
106226 * so that the anon_vma locking is not a noop.
106227 */
106228 if (unlikely(anon_vma_prepare(vma)))
106229 return -ENOMEM;
106230+ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
106231+ if (locknext && anon_vma_prepare(vma->vm_next))
106232+ return -ENOMEM;
106233 vma_lock_anon_vma(vma);
106234+ if (locknext)
106235+ vma_lock_anon_vma(vma->vm_next);
106236
106237 /*
106238 * vma->vm_start/vm_end cannot change under us because the caller
106239 * is required to hold the mmap_sem in read mode. We need the
106240- * anon_vma lock to serialize against concurrent expand_stacks.
106241- * Also guard against wrapping around to address 0.
106242+ * anon_vma locks to serialize against concurrent expand_stacks
106243+ * and expand_upwards.
106244 */
106245- if (address < PAGE_ALIGN(address+4))
106246- address = PAGE_ALIGN(address+4);
106247- else {
106248- vma_unlock_anon_vma(vma);
106249- return -ENOMEM;
106250- }
106251 error = 0;
106252
106253 /* Somebody else might have raced and expanded it already */
106254- if (address > vma->vm_end) {
106255+ 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)
106256+ error = -ENOMEM;
106257+ else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
106258 unsigned long size, grow;
106259
106260 size = address - vma->vm_start;
106261@@ -2204,6 +2521,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
106262 }
106263 }
106264 }
106265+ if (locknext)
106266+ vma_unlock_anon_vma(vma->vm_next);
106267 vma_unlock_anon_vma(vma);
106268 khugepaged_enter_vma_merge(vma, vma->vm_flags);
106269 validate_mm(vma->vm_mm);
106270@@ -2218,6 +2537,8 @@ int expand_downwards(struct vm_area_struct *vma,
106271 unsigned long address)
106272 {
106273 int error;
106274+ bool lockprev = false;
106275+ struct vm_area_struct *prev;
106276
106277 /*
106278 * We must make sure the anon_vma is allocated
106279@@ -2231,6 +2552,15 @@ int expand_downwards(struct vm_area_struct *vma,
106280 if (error)
106281 return error;
106282
106283+ prev = vma->vm_prev;
106284+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
106285+ lockprev = prev && (prev->vm_flags & VM_GROWSUP);
106286+#endif
106287+ if (lockprev && anon_vma_prepare(prev))
106288+ return -ENOMEM;
106289+ if (lockprev)
106290+ vma_lock_anon_vma(prev);
106291+
106292 vma_lock_anon_vma(vma);
106293
106294 /*
106295@@ -2240,9 +2570,17 @@ int expand_downwards(struct vm_area_struct *vma,
106296 */
106297
106298 /* Somebody else might have raced and expanded it already */
106299- if (address < vma->vm_start) {
106300+ if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
106301+ error = -ENOMEM;
106302+ else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
106303 unsigned long size, grow;
106304
106305+#ifdef CONFIG_PAX_SEGMEXEC
106306+ struct vm_area_struct *vma_m;
106307+
106308+ vma_m = pax_find_mirror_vma(vma);
106309+#endif
106310+
106311 size = vma->vm_end - address;
106312 grow = (vma->vm_start - address) >> PAGE_SHIFT;
106313
106314@@ -2267,13 +2605,27 @@ int expand_downwards(struct vm_area_struct *vma,
106315 vma->vm_pgoff -= grow;
106316 anon_vma_interval_tree_post_update_vma(vma);
106317 vma_gap_update(vma);
106318+
106319+#ifdef CONFIG_PAX_SEGMEXEC
106320+ if (vma_m) {
106321+ anon_vma_interval_tree_pre_update_vma(vma_m);
106322+ vma_m->vm_start -= grow << PAGE_SHIFT;
106323+ vma_m->vm_pgoff -= grow;
106324+ anon_vma_interval_tree_post_update_vma(vma_m);
106325+ vma_gap_update(vma_m);
106326+ }
106327+#endif
106328+
106329 spin_unlock(&vma->vm_mm->page_table_lock);
106330
106331+ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
106332 perf_event_mmap(vma);
106333 }
106334 }
106335 }
106336 vma_unlock_anon_vma(vma);
106337+ if (lockprev)
106338+ vma_unlock_anon_vma(prev);
106339 khugepaged_enter_vma_merge(vma, vma->vm_flags);
106340 validate_mm(vma->vm_mm);
106341 return error;
106342@@ -2373,6 +2725,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
106343 do {
106344 long nrpages = vma_pages(vma);
106345
106346+#ifdef CONFIG_PAX_SEGMEXEC
106347+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
106348+ vma = remove_vma(vma);
106349+ continue;
106350+ }
106351+#endif
106352+
106353 if (vma->vm_flags & VM_ACCOUNT)
106354 nr_accounted += nrpages;
106355 vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
106356@@ -2417,6 +2776,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
106357 insertion_point = (prev ? &prev->vm_next : &mm->mmap);
106358 vma->vm_prev = NULL;
106359 do {
106360+
106361+#ifdef CONFIG_PAX_SEGMEXEC
106362+ if (vma->vm_mirror) {
106363+ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
106364+ vma->vm_mirror->vm_mirror = NULL;
106365+ vma->vm_mirror->vm_flags &= ~VM_EXEC;
106366+ vma->vm_mirror = NULL;
106367+ }
106368+#endif
106369+
106370 vma_rb_erase(vma, &mm->mm_rb);
106371 mm->map_count--;
106372 tail_vma = vma;
106373@@ -2444,14 +2813,33 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106374 struct vm_area_struct *new;
106375 int err = -ENOMEM;
106376
106377+#ifdef CONFIG_PAX_SEGMEXEC
106378+ struct vm_area_struct *vma_m, *new_m = NULL;
106379+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
106380+#endif
106381+
106382 if (is_vm_hugetlb_page(vma) && (addr &
106383 ~(huge_page_mask(hstate_vma(vma)))))
106384 return -EINVAL;
106385
106386+#ifdef CONFIG_PAX_SEGMEXEC
106387+ vma_m = pax_find_mirror_vma(vma);
106388+#endif
106389+
106390 new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
106391 if (!new)
106392 goto out_err;
106393
106394+#ifdef CONFIG_PAX_SEGMEXEC
106395+ if (vma_m) {
106396+ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
106397+ if (!new_m) {
106398+ kmem_cache_free(vm_area_cachep, new);
106399+ goto out_err;
106400+ }
106401+ }
106402+#endif
106403+
106404 /* most fields are the same, copy all, and then fixup */
106405 *new = *vma;
106406
106407@@ -2464,6 +2852,22 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106408 new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
106409 }
106410
106411+#ifdef CONFIG_PAX_SEGMEXEC
106412+ if (vma_m) {
106413+ *new_m = *vma_m;
106414+ INIT_LIST_HEAD(&new_m->anon_vma_chain);
106415+ new_m->vm_mirror = new;
106416+ new->vm_mirror = new_m;
106417+
106418+ if (new_below)
106419+ new_m->vm_end = addr_m;
106420+ else {
106421+ new_m->vm_start = addr_m;
106422+ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
106423+ }
106424+ }
106425+#endif
106426+
106427 err = vma_dup_policy(vma, new);
106428 if (err)
106429 goto out_free_vma;
106430@@ -2484,6 +2888,38 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106431 else
106432 err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
106433
106434+#ifdef CONFIG_PAX_SEGMEXEC
106435+ if (!err && vma_m) {
106436+ struct mempolicy *pol = vma_policy(new);
106437+
106438+ if (anon_vma_clone(new_m, vma_m))
106439+ goto out_free_mpol;
106440+
106441+ mpol_get(pol);
106442+ set_vma_policy(new_m, pol);
106443+
106444+ if (new_m->vm_file)
106445+ get_file(new_m->vm_file);
106446+
106447+ if (new_m->vm_ops && new_m->vm_ops->open)
106448+ new_m->vm_ops->open(new_m);
106449+
106450+ if (new_below)
106451+ err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
106452+ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
106453+ else
106454+ err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
106455+
106456+ if (err) {
106457+ if (new_m->vm_ops && new_m->vm_ops->close)
106458+ new_m->vm_ops->close(new_m);
106459+ if (new_m->vm_file)
106460+ fput(new_m->vm_file);
106461+ mpol_put(pol);
106462+ }
106463+ }
106464+#endif
106465+
106466 /* Success. */
106467 if (!err)
106468 return 0;
106469@@ -2493,10 +2929,18 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106470 new->vm_ops->close(new);
106471 if (new->vm_file)
106472 fput(new->vm_file);
106473- unlink_anon_vmas(new);
106474 out_free_mpol:
106475 mpol_put(vma_policy(new));
106476 out_free_vma:
106477+
106478+#ifdef CONFIG_PAX_SEGMEXEC
106479+ if (new_m) {
106480+ unlink_anon_vmas(new_m);
106481+ kmem_cache_free(vm_area_cachep, new_m);
106482+ }
106483+#endif
106484+
106485+ unlink_anon_vmas(new);
106486 kmem_cache_free(vm_area_cachep, new);
106487 out_err:
106488 return err;
106489@@ -2509,6 +2953,15 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106490 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106491 unsigned long addr, int new_below)
106492 {
106493+
106494+#ifdef CONFIG_PAX_SEGMEXEC
106495+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
106496+ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
106497+ if (mm->map_count >= sysctl_max_map_count-1)
106498+ return -ENOMEM;
106499+ } else
106500+#endif
106501+
106502 if (mm->map_count >= sysctl_max_map_count)
106503 return -ENOMEM;
106504
106505@@ -2520,11 +2973,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106506 * work. This now handles partial unmappings.
106507 * Jeremy Fitzhardinge <jeremy@goop.org>
106508 */
106509+#ifdef CONFIG_PAX_SEGMEXEC
106510 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106511 {
106512+ int ret = __do_munmap(mm, start, len);
106513+ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
106514+ return ret;
106515+
106516+ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
106517+}
106518+
106519+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106520+#else
106521+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106522+#endif
106523+{
106524 unsigned long end;
106525 struct vm_area_struct *vma, *prev, *last;
106526
106527+ /*
106528+ * mm->mmap_sem is required to protect against another thread
106529+ * changing the mappings in case we sleep.
106530+ */
106531+ verify_mm_writelocked(mm);
106532+
106533 if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
106534 return -EINVAL;
106535
106536@@ -2602,6 +3074,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106537 /* Fix up all other VM information */
106538 remove_vma_list(mm, vma);
106539
106540+ track_exec_limit(mm, start, end, 0UL);
106541+
106542 return 0;
106543 }
106544
106545@@ -2610,6 +3084,13 @@ int vm_munmap(unsigned long start, size_t len)
106546 int ret;
106547 struct mm_struct *mm = current->mm;
106548
106549+
106550+#ifdef CONFIG_PAX_SEGMEXEC
106551+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
106552+ (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
106553+ return -EINVAL;
106554+#endif
106555+
106556 down_write(&mm->mmap_sem);
106557 ret = do_munmap(mm, start, len);
106558 up_write(&mm->mmap_sem);
106559@@ -2656,6 +3137,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
106560 down_write(&mm->mmap_sem);
106561 vma = find_vma(mm, start);
106562
106563+#ifdef CONFIG_PAX_SEGMEXEC
106564+ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
106565+ goto out;
106566+#endif
106567+
106568 if (!vma || !(vma->vm_flags & VM_SHARED))
106569 goto out;
106570
106571@@ -2692,16 +3178,6 @@ out:
106572 return ret;
106573 }
106574
106575-static inline void verify_mm_writelocked(struct mm_struct *mm)
106576-{
106577-#ifdef CONFIG_DEBUG_VM
106578- if (unlikely(down_read_trylock(&mm->mmap_sem))) {
106579- WARN_ON(1);
106580- up_read(&mm->mmap_sem);
106581- }
106582-#endif
106583-}
106584-
106585 /*
106586 * this is really a simplified "do_mmap". it only handles
106587 * anonymous maps. eventually we may be able to do some
106588@@ -2715,6 +3191,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106589 struct rb_node **rb_link, *rb_parent;
106590 pgoff_t pgoff = addr >> PAGE_SHIFT;
106591 int error;
106592+ unsigned long charged;
106593
106594 len = PAGE_ALIGN(len);
106595 if (!len)
106596@@ -2722,10 +3199,24 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106597
106598 flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
106599
106600+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
106601+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
106602+ flags &= ~VM_EXEC;
106603+
106604+#ifdef CONFIG_PAX_MPROTECT
106605+ if (mm->pax_flags & MF_PAX_MPROTECT)
106606+ flags &= ~VM_MAYEXEC;
106607+#endif
106608+
106609+ }
106610+#endif
106611+
106612 error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
106613 if (error & ~PAGE_MASK)
106614 return error;
106615
106616+ charged = len >> PAGE_SHIFT;
106617+
106618 error = mlock_future_check(mm, mm->def_flags, len);
106619 if (error)
106620 return error;
106621@@ -2739,21 +3230,20 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106622 /*
106623 * Clear old maps. this also does some error checking for us
106624 */
106625- munmap_back:
106626 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
106627 if (do_munmap(mm, addr, len))
106628 return -ENOMEM;
106629- goto munmap_back;
106630+ BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
106631 }
106632
106633 /* Check against address space limits *after* clearing old maps... */
106634- if (!may_expand_vm(mm, len >> PAGE_SHIFT))
106635+ if (!may_expand_vm(mm, charged))
106636 return -ENOMEM;
106637
106638 if (mm->map_count > sysctl_max_map_count)
106639 return -ENOMEM;
106640
106641- if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
106642+ if (security_vm_enough_memory_mm(mm, charged))
106643 return -ENOMEM;
106644
106645 /* Can we just expand an old private anonymous mapping? */
106646@@ -2767,7 +3257,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106647 */
106648 vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106649 if (!vma) {
106650- vm_unacct_memory(len >> PAGE_SHIFT);
106651+ vm_unacct_memory(charged);
106652 return -ENOMEM;
106653 }
106654
106655@@ -2781,10 +3271,11 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106656 vma_link(mm, vma, prev, rb_link, rb_parent);
106657 out:
106658 perf_event_mmap(vma);
106659- mm->total_vm += len >> PAGE_SHIFT;
106660+ mm->total_vm += charged;
106661 if (flags & VM_LOCKED)
106662- mm->locked_vm += (len >> PAGE_SHIFT);
106663+ mm->locked_vm += charged;
106664 vma->vm_flags |= VM_SOFTDIRTY;
106665+ track_exec_limit(mm, addr, addr + len, flags);
106666 return addr;
106667 }
106668
106669@@ -2846,6 +3337,7 @@ void exit_mmap(struct mm_struct *mm)
106670 while (vma) {
106671 if (vma->vm_flags & VM_ACCOUNT)
106672 nr_accounted += vma_pages(vma);
106673+ vma->vm_mirror = NULL;
106674 vma = remove_vma(vma);
106675 }
106676 vm_unacct_memory(nr_accounted);
106677@@ -2860,6 +3352,13 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
106678 struct vm_area_struct *prev;
106679 struct rb_node **rb_link, *rb_parent;
106680
106681+#ifdef CONFIG_PAX_SEGMEXEC
106682+ struct vm_area_struct *vma_m = NULL;
106683+#endif
106684+
106685+ if (security_mmap_addr(vma->vm_start))
106686+ return -EPERM;
106687+
106688 /*
106689 * The vm_pgoff of a purely anonymous vma should be irrelevant
106690 * until its first write fault, when page's anon_vma and index
106691@@ -2883,7 +3382,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
106692 security_vm_enough_memory_mm(mm, vma_pages(vma)))
106693 return -ENOMEM;
106694
106695+#ifdef CONFIG_PAX_SEGMEXEC
106696+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
106697+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106698+ if (!vma_m)
106699+ return -ENOMEM;
106700+ }
106701+#endif
106702+
106703 vma_link(mm, vma, prev, rb_link, rb_parent);
106704+
106705+#ifdef CONFIG_PAX_SEGMEXEC
106706+ if (vma_m)
106707+ BUG_ON(pax_mirror_vma(vma_m, vma));
106708+#endif
106709+
106710 return 0;
106711 }
106712
106713@@ -2902,6 +3415,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
106714 struct rb_node **rb_link, *rb_parent;
106715 bool faulted_in_anon_vma = true;
106716
106717+ BUG_ON(vma->vm_mirror);
106718+
106719 /*
106720 * If anonymous vma has not yet been faulted, update new pgoff
106721 * to match new location, to increase its chance of merging.
106722@@ -2966,6 +3481,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
106723 return NULL;
106724 }
106725
106726+#ifdef CONFIG_PAX_SEGMEXEC
106727+long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
106728+{
106729+ struct vm_area_struct *prev_m;
106730+ struct rb_node **rb_link_m, *rb_parent_m;
106731+ struct mempolicy *pol_m;
106732+
106733+ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
106734+ BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
106735+ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
106736+ *vma_m = *vma;
106737+ INIT_LIST_HEAD(&vma_m->anon_vma_chain);
106738+ if (anon_vma_clone(vma_m, vma))
106739+ return -ENOMEM;
106740+ pol_m = vma_policy(vma_m);
106741+ mpol_get(pol_m);
106742+ set_vma_policy(vma_m, pol_m);
106743+ vma_m->vm_start += SEGMEXEC_TASK_SIZE;
106744+ vma_m->vm_end += SEGMEXEC_TASK_SIZE;
106745+ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
106746+ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
106747+ if (vma_m->vm_file)
106748+ get_file(vma_m->vm_file);
106749+ if (vma_m->vm_ops && vma_m->vm_ops->open)
106750+ vma_m->vm_ops->open(vma_m);
106751+ BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
106752+ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
106753+ vma_m->vm_mirror = vma;
106754+ vma->vm_mirror = vma_m;
106755+ return 0;
106756+}
106757+#endif
106758+
106759 /*
106760 * Return true if the calling process may expand its vm space by the passed
106761 * number of pages
106762@@ -2977,6 +3525,7 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
106763
106764 lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
106765
106766+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
106767 if (cur + npages > lim)
106768 return 0;
106769 return 1;
106770@@ -3059,6 +3608,22 @@ static struct vm_area_struct *__install_special_mapping(
106771 vma->vm_start = addr;
106772 vma->vm_end = addr + len;
106773
106774+#ifdef CONFIG_PAX_MPROTECT
106775+ if (mm->pax_flags & MF_PAX_MPROTECT) {
106776+#ifndef CONFIG_PAX_MPROTECT_COMPAT
106777+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
106778+ return ERR_PTR(-EPERM);
106779+ if (!(vm_flags & VM_EXEC))
106780+ vm_flags &= ~VM_MAYEXEC;
106781+#else
106782+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
106783+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
106784+#endif
106785+ else
106786+ vm_flags &= ~VM_MAYWRITE;
106787+ }
106788+#endif
106789+
106790 vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY;
106791 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
106792
106793diff --git a/mm/mprotect.c b/mm/mprotect.c
106794index 8858483..8145fa5 100644
106795--- a/mm/mprotect.c
106796+++ b/mm/mprotect.c
106797@@ -24,10 +24,18 @@
106798 #include <linux/migrate.h>
106799 #include <linux/perf_event.h>
106800 #include <linux/ksm.h>
106801+#include <linux/sched/sysctl.h>
106802+
106803+#ifdef CONFIG_PAX_MPROTECT
106804+#include <linux/elf.h>
106805+#include <linux/binfmts.h>
106806+#endif
106807+
106808 #include <asm/uaccess.h>
106809 #include <asm/pgtable.h>
106810 #include <asm/cacheflush.h>
106811 #include <asm/tlbflush.h>
106812+#include <asm/mmu_context.h>
106813
106814 /*
106815 * For a prot_numa update we only hold mmap_sem for read so there is a
106816@@ -252,6 +260,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
106817 return pages;
106818 }
106819
106820+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
106821+/* called while holding the mmap semaphor for writing except stack expansion */
106822+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
106823+{
106824+ unsigned long oldlimit, newlimit = 0UL;
106825+
106826+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
106827+ return;
106828+
106829+ spin_lock(&mm->page_table_lock);
106830+ oldlimit = mm->context.user_cs_limit;
106831+ if ((prot & VM_EXEC) && oldlimit < end)
106832+ /* USER_CS limit moved up */
106833+ newlimit = end;
106834+ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
106835+ /* USER_CS limit moved down */
106836+ newlimit = start;
106837+
106838+ if (newlimit) {
106839+ mm->context.user_cs_limit = newlimit;
106840+
106841+#ifdef CONFIG_SMP
106842+ wmb();
106843+ cpus_clear(mm->context.cpu_user_cs_mask);
106844+ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
106845+#endif
106846+
106847+ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
106848+ }
106849+ spin_unlock(&mm->page_table_lock);
106850+ if (newlimit == end) {
106851+ struct vm_area_struct *vma = find_vma(mm, oldlimit);
106852+
106853+ for (; vma && vma->vm_start < end; vma = vma->vm_next)
106854+ if (is_vm_hugetlb_page(vma))
106855+ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
106856+ else
106857+ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
106858+ }
106859+}
106860+#endif
106861+
106862 int
106863 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
106864 unsigned long start, unsigned long end, unsigned long newflags)
106865@@ -264,11 +314,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
106866 int error;
106867 int dirty_accountable = 0;
106868
106869+#ifdef CONFIG_PAX_SEGMEXEC
106870+ struct vm_area_struct *vma_m = NULL;
106871+ unsigned long start_m, end_m;
106872+
106873+ start_m = start + SEGMEXEC_TASK_SIZE;
106874+ end_m = end + SEGMEXEC_TASK_SIZE;
106875+#endif
106876+
106877 if (newflags == oldflags) {
106878 *pprev = vma;
106879 return 0;
106880 }
106881
106882+ if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
106883+ struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
106884+
106885+ if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
106886+ return -ENOMEM;
106887+
106888+ if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
106889+ return -ENOMEM;
106890+ }
106891+
106892 /*
106893 * If we make a private mapping writable we increase our commit;
106894 * but (without finer accounting) cannot reduce our commit if we
106895@@ -285,6 +353,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
106896 }
106897 }
106898
106899+#ifdef CONFIG_PAX_SEGMEXEC
106900+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
106901+ if (start != vma->vm_start) {
106902+ error = split_vma(mm, vma, start, 1);
106903+ if (error)
106904+ goto fail;
106905+ BUG_ON(!*pprev || (*pprev)->vm_next == vma);
106906+ *pprev = (*pprev)->vm_next;
106907+ }
106908+
106909+ if (end != vma->vm_end) {
106910+ error = split_vma(mm, vma, end, 0);
106911+ if (error)
106912+ goto fail;
106913+ }
106914+
106915+ if (pax_find_mirror_vma(vma)) {
106916+ error = __do_munmap(mm, start_m, end_m - start_m);
106917+ if (error)
106918+ goto fail;
106919+ } else {
106920+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106921+ if (!vma_m) {
106922+ error = -ENOMEM;
106923+ goto fail;
106924+ }
106925+ vma->vm_flags = newflags;
106926+ error = pax_mirror_vma(vma_m, vma);
106927+ if (error) {
106928+ vma->vm_flags = oldflags;
106929+ goto fail;
106930+ }
106931+ }
106932+ }
106933+#endif
106934+
106935 /*
106936 * First try to merge with previous and/or next vma.
106937 */
106938@@ -315,7 +419,19 @@ success:
106939 * vm_flags and vm_page_prot are protected by the mmap_sem
106940 * held in write mode.
106941 */
106942+
106943+#ifdef CONFIG_PAX_SEGMEXEC
106944+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
106945+ pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
106946+#endif
106947+
106948 vma->vm_flags = newflags;
106949+
106950+#ifdef CONFIG_PAX_MPROTECT
106951+ if (mm->binfmt && mm->binfmt->handle_mprotect)
106952+ mm->binfmt->handle_mprotect(vma, newflags);
106953+#endif
106954+
106955 dirty_accountable = vma_wants_writenotify(vma);
106956 vma_set_page_prot(vma);
106957
106958@@ -351,6 +467,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
106959 end = start + len;
106960 if (end <= start)
106961 return -ENOMEM;
106962+
106963+#ifdef CONFIG_PAX_SEGMEXEC
106964+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
106965+ if (end > SEGMEXEC_TASK_SIZE)
106966+ return -EINVAL;
106967+ } else
106968+#endif
106969+
106970+ if (end > TASK_SIZE)
106971+ return -EINVAL;
106972+
106973 if (!arch_validate_prot(prot))
106974 return -EINVAL;
106975
106976@@ -358,7 +485,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
106977 /*
106978 * Does the application expect PROT_READ to imply PROT_EXEC:
106979 */
106980- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
106981+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
106982 prot |= PROT_EXEC;
106983
106984 vm_flags = calc_vm_prot_bits(prot);
106985@@ -390,6 +517,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
106986 if (start > vma->vm_start)
106987 prev = vma;
106988
106989+#ifdef CONFIG_PAX_MPROTECT
106990+ if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
106991+ current->mm->binfmt->handle_mprotect(vma, vm_flags);
106992+#endif
106993+
106994 for (nstart = start ; ; ) {
106995 unsigned long newflags;
106996
106997@@ -400,6 +532,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
106998
106999 /* newflags >> 4 shift VM_MAY% in place of VM_% */
107000 if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
107001+ if (prot & (PROT_WRITE | PROT_EXEC))
107002+ gr_log_rwxmprotect(vma);
107003+
107004+ error = -EACCES;
107005+ goto out;
107006+ }
107007+
107008+ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
107009 error = -EACCES;
107010 goto out;
107011 }
107012@@ -414,6 +554,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107013 error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
107014 if (error)
107015 goto out;
107016+
107017+ track_exec_limit(current->mm, nstart, tmp, vm_flags);
107018+
107019 nstart = tmp;
107020
107021 if (nstart < prev->vm_end)
107022diff --git a/mm/mremap.c b/mm/mremap.c
107023index 2dc44b1..caa1819 100644
107024--- a/mm/mremap.c
107025+++ b/mm/mremap.c
107026@@ -142,6 +142,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
107027 continue;
107028 pte = ptep_get_and_clear(mm, old_addr, old_pte);
107029 pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
107030+
107031+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
107032+ if (!(__supported_pte_mask & _PAGE_NX) && pte_present(pte) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
107033+ pte = pte_exprotect(pte);
107034+#endif
107035+
107036 pte = move_soft_dirty_pte(pte);
107037 set_pte_at(mm, new_addr, new_pte, pte);
107038 }
107039@@ -350,6 +356,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
107040 if (is_vm_hugetlb_page(vma))
107041 goto Einval;
107042
107043+#ifdef CONFIG_PAX_SEGMEXEC
107044+ if (pax_find_mirror_vma(vma))
107045+ goto Einval;
107046+#endif
107047+
107048 /* We can't remap across vm area boundaries */
107049 if (old_len > vma->vm_end - addr)
107050 goto Efault;
107051@@ -405,20 +416,25 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
107052 unsigned long ret = -EINVAL;
107053 unsigned long charged = 0;
107054 unsigned long map_flags;
107055+ unsigned long pax_task_size = TASK_SIZE;
107056
107057 if (new_addr & ~PAGE_MASK)
107058 goto out;
107059
107060- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
107061+#ifdef CONFIG_PAX_SEGMEXEC
107062+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
107063+ pax_task_size = SEGMEXEC_TASK_SIZE;
107064+#endif
107065+
107066+ pax_task_size -= PAGE_SIZE;
107067+
107068+ if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
107069 goto out;
107070
107071 /* Check if the location we're moving into overlaps the
107072 * old location at all, and fail if it does.
107073 */
107074- if ((new_addr <= addr) && (new_addr+new_len) > addr)
107075- goto out;
107076-
107077- if ((addr <= new_addr) && (addr+old_len) > new_addr)
107078+ if (addr + old_len > new_addr && new_addr + new_len > addr)
107079 goto out;
107080
107081 ret = do_munmap(mm, new_addr, new_len);
107082@@ -487,6 +503,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107083 unsigned long ret = -EINVAL;
107084 unsigned long charged = 0;
107085 bool locked = false;
107086+ unsigned long pax_task_size = TASK_SIZE;
107087
107088 if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
107089 return ret;
107090@@ -508,6 +525,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107091 if (!new_len)
107092 return ret;
107093
107094+#ifdef CONFIG_PAX_SEGMEXEC
107095+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
107096+ pax_task_size = SEGMEXEC_TASK_SIZE;
107097+#endif
107098+
107099+ pax_task_size -= PAGE_SIZE;
107100+
107101+ if (new_len > pax_task_size || addr > pax_task_size-new_len ||
107102+ old_len > pax_task_size || addr > pax_task_size-old_len)
107103+ return ret;
107104+
107105 down_write(&current->mm->mmap_sem);
107106
107107 if (flags & MREMAP_FIXED) {
107108@@ -558,6 +586,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107109 new_addr = addr;
107110 }
107111 ret = addr;
107112+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
107113 goto out;
107114 }
107115 }
107116@@ -581,7 +610,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107117 goto out;
107118 }
107119
107120+ map_flags = vma->vm_flags;
107121 ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
107122+ if (!(ret & ~PAGE_MASK)) {
107123+ track_exec_limit(current->mm, addr, addr + old_len, 0UL);
107124+ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
107125+ }
107126 }
107127 out:
107128 if (ret & ~PAGE_MASK)
107129diff --git a/mm/nommu.c b/mm/nommu.c
107130index 3fba2dc..fdad748 100644
107131--- a/mm/nommu.c
107132+++ b/mm/nommu.c
107133@@ -72,7 +72,6 @@ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
107134 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
107135 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
107136 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
107137-int heap_stack_gap = 0;
107138
107139 atomic_long_t mmap_pages_allocated;
107140
107141@@ -892,15 +891,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
107142 EXPORT_SYMBOL(find_vma);
107143
107144 /*
107145- * find a VMA
107146- * - we don't extend stack VMAs under NOMMU conditions
107147- */
107148-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
107149-{
107150- return find_vma(mm, addr);
107151-}
107152-
107153-/*
107154 * expand a stack to a given address
107155 * - not supported under NOMMU conditions
107156 */
107157@@ -1585,6 +1575,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
107158
107159 /* most fields are the same, copy all, and then fixup */
107160 *new = *vma;
107161+ INIT_LIST_HEAD(&new->anon_vma_chain);
107162 *region = *vma->vm_region;
107163 new->vm_region = region;
107164
107165@@ -2007,8 +1998,8 @@ void filemap_map_pages(struct vm_area_struct *vma, struct vm_fault *vmf)
107166 }
107167 EXPORT_SYMBOL(filemap_map_pages);
107168
107169-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107170- unsigned long addr, void *buf, int len, int write)
107171+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107172+ unsigned long addr, void *buf, size_t len, int write)
107173 {
107174 struct vm_area_struct *vma;
107175
107176@@ -2049,8 +2040,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107177 *
107178 * The caller must hold a reference on @mm.
107179 */
107180-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
107181- void *buf, int len, int write)
107182+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
107183+ void *buf, size_t len, int write)
107184 {
107185 return __access_remote_vm(NULL, mm, addr, buf, len, write);
107186 }
107187@@ -2059,7 +2050,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
107188 * Access another process' address space.
107189 * - source/target buffer must be kernel space
107190 */
107191-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
107192+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
107193 {
107194 struct mm_struct *mm;
107195
107196diff --git a/mm/page-writeback.c b/mm/page-writeback.c
107197index ad05f2f..cee723a 100644
107198--- a/mm/page-writeback.c
107199+++ b/mm/page-writeback.c
107200@@ -664,7 +664,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
107201 * card's bdi_dirty may rush to many times higher than bdi_setpoint.
107202 * - the bdi dirty thresh drops quickly due to change of JBOD workload
107203 */
107204-static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
107205+static unsigned long __intentional_overflow(-1) bdi_position_ratio(struct backing_dev_info *bdi,
107206 unsigned long thresh,
107207 unsigned long bg_thresh,
107208 unsigned long dirty,
107209diff --git a/mm/page_alloc.c b/mm/page_alloc.c
107210index 40e2942..0eb29a2 100644
107211--- a/mm/page_alloc.c
107212+++ b/mm/page_alloc.c
107213@@ -61,6 +61,7 @@
107214 #include <linux/hugetlb.h>
107215 #include <linux/sched/rt.h>
107216 #include <linux/page_owner.h>
107217+#include <linux/random.h>
107218
107219 #include <asm/sections.h>
107220 #include <asm/tlbflush.h>
107221@@ -357,7 +358,7 @@ out:
107222 * This usage means that zero-order pages may not be compound.
107223 */
107224
107225-static void free_compound_page(struct page *page)
107226+void free_compound_page(struct page *page)
107227 {
107228 __free_pages_ok(page, compound_order(page));
107229 }
107230@@ -480,7 +481,7 @@ static inline void clear_page_guard(struct zone *zone, struct page *page,
107231 __mod_zone_freepage_state(zone, (1 << order), migratetype);
107232 }
107233 #else
107234-struct page_ext_operations debug_guardpage_ops = { NULL, };
107235+struct page_ext_operations debug_guardpage_ops = { .need = NULL, .init = NULL };
107236 static inline void set_page_guard(struct zone *zone, struct page *page,
107237 unsigned int order, int migratetype) {}
107238 static inline void clear_page_guard(struct zone *zone, struct page *page,
107239@@ -783,6 +784,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
107240 bool compound = PageCompound(page);
107241 int i, bad = 0;
107242
107243+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107244+ unsigned long index = 1UL << order;
107245+#endif
107246+
107247 VM_BUG_ON_PAGE(PageTail(page), page);
107248 VM_BUG_ON_PAGE(compound && compound_order(page) != order, page);
107249
107250@@ -809,6 +814,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
107251 debug_check_no_obj_freed(page_address(page),
107252 PAGE_SIZE << order);
107253 }
107254+
107255+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107256+ for (; index; --index)
107257+ sanitize_highpage(page + index - 1);
107258+#endif
107259+
107260 arch_free_page(page, order);
107261 kernel_map_pages(page, 1 << order, 0);
107262
107263@@ -832,6 +843,20 @@ static void __free_pages_ok(struct page *page, unsigned int order)
107264 local_irq_restore(flags);
107265 }
107266
107267+#ifdef CONFIG_PAX_LATENT_ENTROPY
107268+bool __meminitdata extra_latent_entropy;
107269+
107270+static int __init setup_pax_extra_latent_entropy(char *str)
107271+{
107272+ extra_latent_entropy = true;
107273+ return 0;
107274+}
107275+early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
107276+
107277+volatile u64 latent_entropy __latent_entropy;
107278+EXPORT_SYMBOL(latent_entropy);
107279+#endif
107280+
107281 void __init __free_pages_bootmem(struct page *page, unsigned int order)
107282 {
107283 unsigned int nr_pages = 1 << order;
107284@@ -847,6 +872,19 @@ void __init __free_pages_bootmem(struct page *page, unsigned int order)
107285 __ClearPageReserved(p);
107286 set_page_count(p, 0);
107287
107288+#ifdef CONFIG_PAX_LATENT_ENTROPY
107289+ if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
107290+ u64 hash = 0;
107291+ size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
107292+ const u64 *data = lowmem_page_address(page);
107293+
107294+ for (index = 0; index < end; index++)
107295+ hash ^= hash + data[index];
107296+ latent_entropy ^= hash;
107297+ add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
107298+ }
107299+#endif
107300+
107301 page_zone(page)->managed_pages += nr_pages;
107302 set_page_refcounted(page);
107303 __free_pages(page, order);
107304@@ -974,8 +1012,10 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
107305 kernel_map_pages(page, 1 << order, 1);
107306 kasan_alloc_pages(page, order);
107307
107308+#ifndef CONFIG_PAX_MEMORY_SANITIZE
107309 if (gfp_flags & __GFP_ZERO)
107310 prep_zero_page(page, order, gfp_flags);
107311+#endif
107312
107313 if (order && (gfp_flags & __GFP_COMP))
107314 prep_compound_page(page, order);
107315@@ -1699,7 +1739,7 @@ struct page *buffered_rmqueue(struct zone *preferred_zone,
107316 }
107317
107318 __mod_zone_page_state(zone, NR_ALLOC_BATCH, -(1 << order));
107319- if (atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
107320+ if (atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
107321 !test_bit(ZONE_FAIR_DEPLETED, &zone->flags))
107322 set_bit(ZONE_FAIR_DEPLETED, &zone->flags);
107323
107324@@ -2018,7 +2058,7 @@ static void reset_alloc_batches(struct zone *preferred_zone)
107325 do {
107326 mod_zone_page_state(zone, NR_ALLOC_BATCH,
107327 high_wmark_pages(zone) - low_wmark_pages(zone) -
107328- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
107329+ atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
107330 clear_bit(ZONE_FAIR_DEPLETED, &zone->flags);
107331 } while (zone++ != preferred_zone);
107332 }
107333@@ -5738,7 +5778,7 @@ static void __setup_per_zone_wmarks(void)
107334
107335 __mod_zone_page_state(zone, NR_ALLOC_BATCH,
107336 high_wmark_pages(zone) - low_wmark_pages(zone) -
107337- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
107338+ atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
107339
107340 setup_zone_migrate_reserve(zone);
107341 spin_unlock_irqrestore(&zone->lock, flags);
107342diff --git a/mm/percpu.c b/mm/percpu.c
107343index 73c97a5..508ee25 100644
107344--- a/mm/percpu.c
107345+++ b/mm/percpu.c
107346@@ -131,7 +131,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
107347 static unsigned int pcpu_high_unit_cpu __read_mostly;
107348
107349 /* the address of the first chunk which starts with the kernel static area */
107350-void *pcpu_base_addr __read_mostly;
107351+void *pcpu_base_addr __read_only;
107352 EXPORT_SYMBOL_GPL(pcpu_base_addr);
107353
107354 static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */
107355diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
107356index b159769..d07037f 100644
107357--- a/mm/process_vm_access.c
107358+++ b/mm/process_vm_access.c
107359@@ -13,6 +13,7 @@
107360 #include <linux/uio.h>
107361 #include <linux/sched.h>
107362 #include <linux/highmem.h>
107363+#include <linux/security.h>
107364 #include <linux/ptrace.h>
107365 #include <linux/slab.h>
107366 #include <linux/syscalls.h>
107367@@ -154,19 +155,19 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
107368 ssize_t iov_len;
107369 size_t total_len = iov_iter_count(iter);
107370
107371+ return -ENOSYS; // PaX: until properly audited
107372+
107373 /*
107374 * Work out how many pages of struct pages we're going to need
107375 * when eventually calling get_user_pages
107376 */
107377 for (i = 0; i < riovcnt; i++) {
107378 iov_len = rvec[i].iov_len;
107379- if (iov_len > 0) {
107380- nr_pages_iov = ((unsigned long)rvec[i].iov_base
107381- + iov_len)
107382- / PAGE_SIZE - (unsigned long)rvec[i].iov_base
107383- / PAGE_SIZE + 1;
107384- nr_pages = max(nr_pages, nr_pages_iov);
107385- }
107386+ if (iov_len <= 0)
107387+ continue;
107388+ nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
107389+ (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
107390+ nr_pages = max(nr_pages, nr_pages_iov);
107391 }
107392
107393 if (nr_pages == 0)
107394@@ -194,6 +195,11 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
107395 goto free_proc_pages;
107396 }
107397
107398+ if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
107399+ rc = -EPERM;
107400+ goto put_task_struct;
107401+ }
107402+
107403 mm = mm_access(task, PTRACE_MODE_ATTACH);
107404 if (!mm || IS_ERR(mm)) {
107405 rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
107406diff --git a/mm/rmap.c b/mm/rmap.c
107407index c161a14..8a069bb 100644
107408--- a/mm/rmap.c
107409+++ b/mm/rmap.c
107410@@ -166,6 +166,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107411 struct anon_vma *anon_vma = vma->anon_vma;
107412 struct anon_vma_chain *avc;
107413
107414+#ifdef CONFIG_PAX_SEGMEXEC
107415+ struct anon_vma_chain *avc_m = NULL;
107416+#endif
107417+
107418 might_sleep();
107419 if (unlikely(!anon_vma)) {
107420 struct mm_struct *mm = vma->vm_mm;
107421@@ -175,6 +179,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107422 if (!avc)
107423 goto out_enomem;
107424
107425+#ifdef CONFIG_PAX_SEGMEXEC
107426+ avc_m = anon_vma_chain_alloc(GFP_KERNEL);
107427+ if (!avc_m)
107428+ goto out_enomem_free_avc;
107429+#endif
107430+
107431 anon_vma = find_mergeable_anon_vma(vma);
107432 allocated = NULL;
107433 if (!anon_vma) {
107434@@ -188,6 +198,19 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107435 /* page_table_lock to protect against threads */
107436 spin_lock(&mm->page_table_lock);
107437 if (likely(!vma->anon_vma)) {
107438+
107439+#ifdef CONFIG_PAX_SEGMEXEC
107440+ struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
107441+
107442+ if (vma_m) {
107443+ BUG_ON(vma_m->anon_vma);
107444+ vma_m->anon_vma = anon_vma;
107445+ anon_vma_chain_link(vma_m, avc_m, anon_vma);
107446+ anon_vma->degree++;
107447+ avc_m = NULL;
107448+ }
107449+#endif
107450+
107451 vma->anon_vma = anon_vma;
107452 anon_vma_chain_link(vma, avc, anon_vma);
107453 /* vma reference or self-parent link for new root */
107454@@ -200,12 +223,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107455
107456 if (unlikely(allocated))
107457 put_anon_vma(allocated);
107458+
107459+#ifdef CONFIG_PAX_SEGMEXEC
107460+ if (unlikely(avc_m))
107461+ anon_vma_chain_free(avc_m);
107462+#endif
107463+
107464 if (unlikely(avc))
107465 anon_vma_chain_free(avc);
107466 }
107467 return 0;
107468
107469 out_enomem_free_avc:
107470+
107471+#ifdef CONFIG_PAX_SEGMEXEC
107472+ if (avc_m)
107473+ anon_vma_chain_free(avc_m);
107474+#endif
107475+
107476 anon_vma_chain_free(avc);
107477 out_enomem:
107478 return -ENOMEM;
107479@@ -249,7 +284,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
107480 * good chance of avoiding scanning the whole hierarchy when it searches where
107481 * page is mapped.
107482 */
107483-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
107484+int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
107485 {
107486 struct anon_vma_chain *avc, *pavc;
107487 struct anon_vma *root = NULL;
107488@@ -303,7 +338,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
107489 * the corresponding VMA in the parent process is attached to.
107490 * Returns 0 on success, non-zero on failure.
107491 */
107492-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
107493+int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
107494 {
107495 struct anon_vma_chain *avc;
107496 struct anon_vma *anon_vma;
107497@@ -423,8 +458,10 @@ static void anon_vma_ctor(void *data)
107498 void __init anon_vma_init(void)
107499 {
107500 anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
107501- 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor);
107502- anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain, SLAB_PANIC);
107503+ 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_NO_SANITIZE,
107504+ anon_vma_ctor);
107505+ anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain,
107506+ SLAB_PANIC|SLAB_NO_SANITIZE);
107507 }
107508
107509 /*
107510diff --git a/mm/shmem.c b/mm/shmem.c
107511index cf2d0ca..ec06b8b 100644
107512--- a/mm/shmem.c
107513+++ b/mm/shmem.c
107514@@ -33,7 +33,7 @@
107515 #include <linux/swap.h>
107516 #include <linux/aio.h>
107517
107518-static struct vfsmount *shm_mnt;
107519+struct vfsmount *shm_mnt;
107520
107521 #ifdef CONFIG_SHMEM
107522 /*
107523@@ -80,7 +80,7 @@ static struct vfsmount *shm_mnt;
107524 #define BOGO_DIRENT_SIZE 20
107525
107526 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
107527-#define SHORT_SYMLINK_LEN 128
107528+#define SHORT_SYMLINK_LEN 64
107529
107530 /*
107531 * shmem_fallocate communicates with shmem_fault or shmem_writepage via
107532@@ -2555,6 +2555,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
107533 static int shmem_xattr_validate(const char *name)
107534 {
107535 struct { const char *prefix; size_t len; } arr[] = {
107536+
107537+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
107538+ { XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN},
107539+#endif
107540+
107541 { XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN },
107542 { XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN }
107543 };
107544@@ -2610,6 +2615,15 @@ static int shmem_setxattr(struct dentry *dentry, const char *name,
107545 if (err)
107546 return err;
107547
107548+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
107549+ if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
107550+ if (strcmp(name, XATTR_NAME_PAX_FLAGS))
107551+ return -EOPNOTSUPP;
107552+ if (size > 8)
107553+ return -EINVAL;
107554+ }
107555+#endif
107556+
107557 return simple_xattr_set(&info->xattrs, name, value, size, flags);
107558 }
107559
107560@@ -2993,8 +3007,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
107561 int err = -ENOMEM;
107562
107563 /* Round up to L1_CACHE_BYTES to resist false sharing */
107564- sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
107565- L1_CACHE_BYTES), GFP_KERNEL);
107566+ sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
107567 if (!sbinfo)
107568 return -ENOMEM;
107569
107570diff --git a/mm/slab.c b/mm/slab.c
107571index c4b89ea..20990be 100644
107572--- a/mm/slab.c
107573+++ b/mm/slab.c
107574@@ -314,10 +314,12 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
107575 if ((x)->max_freeable < i) \
107576 (x)->max_freeable = i; \
107577 } while (0)
107578-#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit)
107579-#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss)
107580-#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit)
107581-#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss)
107582+#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit)
107583+#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss)
107584+#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit)
107585+#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss)
107586+#define STATS_INC_SANITIZED(x) atomic_inc_unchecked(&(x)->sanitized)
107587+#define STATS_INC_NOT_SANITIZED(x) atomic_inc_unchecked(&(x)->not_sanitized)
107588 #else
107589 #define STATS_INC_ACTIVE(x) do { } while (0)
107590 #define STATS_DEC_ACTIVE(x) do { } while (0)
107591@@ -334,6 +336,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
107592 #define STATS_INC_ALLOCMISS(x) do { } while (0)
107593 #define STATS_INC_FREEHIT(x) do { } while (0)
107594 #define STATS_INC_FREEMISS(x) do { } while (0)
107595+#define STATS_INC_SANITIZED(x) do { } while (0)
107596+#define STATS_INC_NOT_SANITIZED(x) do { } while (0)
107597 #endif
107598
107599 #if DEBUG
107600@@ -450,7 +454,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
107601 * reciprocal_divide(offset, cache->reciprocal_buffer_size)
107602 */
107603 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
107604- const struct page *page, void *obj)
107605+ const struct page *page, const void *obj)
107606 {
107607 u32 offset = (obj - page->s_mem);
107608 return reciprocal_divide(offset, cache->reciprocal_buffer_size);
107609@@ -1438,7 +1442,7 @@ void __init kmem_cache_init(void)
107610 * structures first. Without this, further allocations will bug.
107611 */
107612 kmalloc_caches[INDEX_NODE] = create_kmalloc_cache("kmalloc-node",
107613- kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS);
107614+ kmalloc_size(INDEX_NODE), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
107615 slab_state = PARTIAL_NODE;
107616
107617 slab_early_init = 0;
107618@@ -2059,7 +2063,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
107619
107620 cachep = find_mergeable(size, align, flags, name, ctor);
107621 if (cachep) {
107622- cachep->refcount++;
107623+ atomic_inc(&cachep->refcount);
107624
107625 /*
107626 * Adjust the object sizes so that we clear
107627@@ -3357,6 +3361,20 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
107628 struct array_cache *ac = cpu_cache_get(cachep);
107629
107630 check_irq_off();
107631+
107632+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107633+ if (cachep->flags & (SLAB_POISON | SLAB_NO_SANITIZE))
107634+ STATS_INC_NOT_SANITIZED(cachep);
107635+ else {
107636+ memset(objp, PAX_MEMORY_SANITIZE_VALUE, cachep->object_size);
107637+
107638+ if (cachep->ctor)
107639+ cachep->ctor(objp);
107640+
107641+ STATS_INC_SANITIZED(cachep);
107642+ }
107643+#endif
107644+
107645 kmemleak_free_recursive(objp, cachep->flags);
107646 objp = cache_free_debugcheck(cachep, objp, caller);
107647
107648@@ -3469,7 +3487,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller)
107649 return kmem_cache_alloc_node_trace(cachep, flags, node, size);
107650 }
107651
107652-void *__kmalloc_node(size_t size, gfp_t flags, int node)
107653+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
107654 {
107655 return __do_kmalloc_node(size, flags, node, _RET_IP_);
107656 }
107657@@ -3489,7 +3507,7 @@ EXPORT_SYMBOL(__kmalloc_node_track_caller);
107658 * @flags: the type of memory to allocate (see kmalloc).
107659 * @caller: function caller for debug tracking of the caller
107660 */
107661-static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
107662+static __always_inline void * __size_overflow(1) __do_kmalloc(size_t size, gfp_t flags,
107663 unsigned long caller)
107664 {
107665 struct kmem_cache *cachep;
107666@@ -3562,6 +3580,7 @@ void kfree(const void *objp)
107667
107668 if (unlikely(ZERO_OR_NULL_PTR(objp)))
107669 return;
107670+ VM_BUG_ON(!virt_addr_valid(objp));
107671 local_irq_save(flags);
107672 kfree_debugcheck(objp);
107673 c = virt_to_cache(objp);
107674@@ -3981,14 +4000,22 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
107675 }
107676 /* cpu stats */
107677 {
107678- unsigned long allochit = atomic_read(&cachep->allochit);
107679- unsigned long allocmiss = atomic_read(&cachep->allocmiss);
107680- unsigned long freehit = atomic_read(&cachep->freehit);
107681- unsigned long freemiss = atomic_read(&cachep->freemiss);
107682+ unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
107683+ unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
107684+ unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
107685+ unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
107686
107687 seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
107688 allochit, allocmiss, freehit, freemiss);
107689 }
107690+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107691+ {
107692+ unsigned long sanitized = atomic_read_unchecked(&cachep->sanitized);
107693+ unsigned long not_sanitized = atomic_read_unchecked(&cachep->not_sanitized);
107694+
107695+ seq_printf(m, " : pax %6lu %6lu", sanitized, not_sanitized);
107696+ }
107697+#endif
107698 #endif
107699 }
107700
107701@@ -4196,13 +4223,69 @@ static const struct file_operations proc_slabstats_operations = {
107702 static int __init slab_proc_init(void)
107703 {
107704 #ifdef CONFIG_DEBUG_SLAB_LEAK
107705- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
107706+ proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
107707 #endif
107708 return 0;
107709 }
107710 module_init(slab_proc_init);
107711 #endif
107712
107713+bool is_usercopy_object(const void *ptr)
107714+{
107715+ struct page *page;
107716+ struct kmem_cache *cachep;
107717+
107718+ if (ZERO_OR_NULL_PTR(ptr))
107719+ return false;
107720+
107721+ if (!slab_is_available())
107722+ return false;
107723+
107724+ if (!virt_addr_valid(ptr))
107725+ return false;
107726+
107727+ page = virt_to_head_page(ptr);
107728+
107729+ if (!PageSlab(page))
107730+ return false;
107731+
107732+ cachep = page->slab_cache;
107733+ return cachep->flags & SLAB_USERCOPY;
107734+}
107735+
107736+#ifdef CONFIG_PAX_USERCOPY
107737+const char *check_heap_object(const void *ptr, unsigned long n)
107738+{
107739+ struct page *page;
107740+ struct kmem_cache *cachep;
107741+ unsigned int objnr;
107742+ unsigned long offset;
107743+
107744+ if (ZERO_OR_NULL_PTR(ptr))
107745+ return "<null>";
107746+
107747+ if (!virt_addr_valid(ptr))
107748+ return NULL;
107749+
107750+ page = virt_to_head_page(ptr);
107751+
107752+ if (!PageSlab(page))
107753+ return NULL;
107754+
107755+ cachep = page->slab_cache;
107756+ if (!(cachep->flags & SLAB_USERCOPY))
107757+ return cachep->name;
107758+
107759+ objnr = obj_to_index(cachep, page, ptr);
107760+ BUG_ON(objnr >= cachep->num);
107761+ offset = ptr - index_to_obj(cachep, page, objnr) - obj_offset(cachep);
107762+ if (offset <= cachep->object_size && n <= cachep->object_size - offset)
107763+ return NULL;
107764+
107765+ return cachep->name;
107766+}
107767+#endif
107768+
107769 /**
107770 * ksize - get the actual amount of memory allocated for a given object
107771 * @objp: Pointer to the object
107772diff --git a/mm/slab.h b/mm/slab.h
107773index 4c3ac12..7b2e470 100644
107774--- a/mm/slab.h
107775+++ b/mm/slab.h
107776@@ -22,7 +22,7 @@ struct kmem_cache {
107777 unsigned int align; /* Alignment as calculated */
107778 unsigned long flags; /* Active flags on the slab */
107779 const char *name; /* Slab name for sysfs */
107780- int refcount; /* Use counter */
107781+ atomic_t refcount; /* Use counter */
107782 void (*ctor)(void *); /* Called on object slot creation */
107783 struct list_head list; /* List of all slab caches on the system */
107784 };
107785@@ -66,6 +66,20 @@ extern struct list_head slab_caches;
107786 /* The slab cache that manages slab cache information */
107787 extern struct kmem_cache *kmem_cache;
107788
107789+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107790+#ifdef CONFIG_X86_64
107791+#define PAX_MEMORY_SANITIZE_VALUE '\xfe'
107792+#else
107793+#define PAX_MEMORY_SANITIZE_VALUE '\xff'
107794+#endif
107795+enum pax_sanitize_mode {
107796+ PAX_SANITIZE_SLAB_OFF = 0,
107797+ PAX_SANITIZE_SLAB_FAST,
107798+ PAX_SANITIZE_SLAB_FULL,
107799+};
107800+extern enum pax_sanitize_mode pax_sanitize_slab;
107801+#endif
107802+
107803 unsigned long calculate_alignment(unsigned long flags,
107804 unsigned long align, unsigned long size);
107805
107806@@ -114,7 +128,8 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
107807
107808 /* Legal flag mask for kmem_cache_create(), for various configurations */
107809 #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
107810- SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
107811+ SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | \
107812+ SLAB_USERCOPY | SLAB_NO_SANITIZE)
107813
107814 #if defined(CONFIG_DEBUG_SLAB)
107815 #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
107816@@ -315,6 +330,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
107817 return s;
107818
107819 page = virt_to_head_page(x);
107820+
107821+ BUG_ON(!PageSlab(page));
107822+
107823 cachep = page->slab_cache;
107824 if (slab_equal_or_root(cachep, s))
107825 return cachep;
107826diff --git a/mm/slab_common.c b/mm/slab_common.c
107827index 999bb34..9843aea 100644
107828--- a/mm/slab_common.c
107829+++ b/mm/slab_common.c
107830@@ -25,11 +25,35 @@
107831
107832 #include "slab.h"
107833
107834-enum slab_state slab_state;
107835+enum slab_state slab_state __read_only;
107836 LIST_HEAD(slab_caches);
107837 DEFINE_MUTEX(slab_mutex);
107838 struct kmem_cache *kmem_cache;
107839
107840+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107841+enum pax_sanitize_mode pax_sanitize_slab __read_only = PAX_SANITIZE_SLAB_FAST;
107842+static int __init pax_sanitize_slab_setup(char *str)
107843+{
107844+ if (!str)
107845+ return 0;
107846+
107847+ if (!strcmp(str, "0") || !strcmp(str, "off")) {
107848+ pr_info("PaX slab sanitization: %s\n", "disabled");
107849+ pax_sanitize_slab = PAX_SANITIZE_SLAB_OFF;
107850+ } else if (!strcmp(str, "1") || !strcmp(str, "fast")) {
107851+ pr_info("PaX slab sanitization: %s\n", "fast");
107852+ pax_sanitize_slab = PAX_SANITIZE_SLAB_FAST;
107853+ } else if (!strcmp(str, "full")) {
107854+ pr_info("PaX slab sanitization: %s\n", "full");
107855+ pax_sanitize_slab = PAX_SANITIZE_SLAB_FULL;
107856+ } else
107857+ pr_err("PaX slab sanitization: unsupported option '%s'\n", str);
107858+
107859+ return 0;
107860+}
107861+early_param("pax_sanitize_slab", pax_sanitize_slab_setup);
107862+#endif
107863+
107864 /*
107865 * Set of flags that will prevent slab merging
107866 */
107867@@ -44,7 +68,7 @@ struct kmem_cache *kmem_cache;
107868 * Merge control. If this is set then no merging of slab caches will occur.
107869 * (Could be removed. This was introduced to pacify the merge skeptics.)
107870 */
107871-static int slab_nomerge;
107872+static int slab_nomerge = 1;
107873
107874 static int __init setup_slab_nomerge(char *str)
107875 {
107876@@ -217,7 +241,7 @@ int slab_unmergeable(struct kmem_cache *s)
107877 /*
107878 * We may have set a slab to be unmergeable during bootstrap.
107879 */
107880- if (s->refcount < 0)
107881+ if (atomic_read(&s->refcount) < 0)
107882 return 1;
107883
107884 return 0;
107885@@ -321,7 +345,7 @@ do_kmem_cache_create(const char *name, size_t object_size, size_t size,
107886 if (err)
107887 goto out_free_cache;
107888
107889- s->refcount = 1;
107890+ atomic_set(&s->refcount, 1);
107891 list_add(&s->list, &slab_caches);
107892 out:
107893 if (err)
107894@@ -386,6 +410,13 @@ kmem_cache_create(const char *name, size_t size, size_t align,
107895 */
107896 flags &= CACHE_CREATE_MASK;
107897
107898+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107899+ if (pax_sanitize_slab == PAX_SANITIZE_SLAB_OFF || (flags & SLAB_DESTROY_BY_RCU))
107900+ flags |= SLAB_NO_SANITIZE;
107901+ else if (pax_sanitize_slab == PAX_SANITIZE_SLAB_FULL)
107902+ flags &= ~SLAB_NO_SANITIZE;
107903+#endif
107904+
107905 s = __kmem_cache_alias(name, size, align, flags, ctor);
107906 if (s)
107907 goto out_unlock;
107908@@ -456,7 +487,7 @@ static void do_kmem_cache_release(struct list_head *release,
107909 rcu_barrier();
107910
107911 list_for_each_entry_safe(s, s2, release, list) {
107912-#ifdef SLAB_SUPPORTS_SYSFS
107913+#if defined(SLAB_SUPPORTS_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
107914 sysfs_slab_remove(s);
107915 #else
107916 slab_kmem_cache_release(s);
107917@@ -625,8 +656,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
107918
107919 mutex_lock(&slab_mutex);
107920
107921- s->refcount--;
107922- if (s->refcount)
107923+ if (!atomic_dec_and_test(&s->refcount))
107924 goto out_unlock;
107925
107926 for_each_memcg_cache_safe(c, c2, s) {
107927@@ -691,7 +721,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
107928 panic("Creation of kmalloc slab %s size=%zu failed. Reason %d\n",
107929 name, size, err);
107930
107931- s->refcount = -1; /* Exempt from merging for now */
107932+ atomic_set(&s->refcount, -1); /* Exempt from merging for now */
107933 }
107934
107935 struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
107936@@ -704,7 +734,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
107937
107938 create_boot_cache(s, name, size, flags);
107939 list_add(&s->list, &slab_caches);
107940- s->refcount = 1;
107941+ atomic_set(&s->refcount, 1);
107942 return s;
107943 }
107944
107945@@ -716,6 +746,11 @@ struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
107946 EXPORT_SYMBOL(kmalloc_dma_caches);
107947 #endif
107948
107949+#ifdef CONFIG_PAX_USERCOPY_SLABS
107950+struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
107951+EXPORT_SYMBOL(kmalloc_usercopy_caches);
107952+#endif
107953+
107954 /*
107955 * Conversion table for small slabs sizes / 8 to the index in the
107956 * kmalloc array. This is necessary for slabs < 192 since we have non power
107957@@ -780,6 +815,13 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
107958 return kmalloc_dma_caches[index];
107959
107960 #endif
107961+
107962+#ifdef CONFIG_PAX_USERCOPY_SLABS
107963+ if (unlikely((flags & GFP_USERCOPY)))
107964+ return kmalloc_usercopy_caches[index];
107965+
107966+#endif
107967+
107968 return kmalloc_caches[index];
107969 }
107970
107971@@ -836,7 +878,7 @@ void __init create_kmalloc_caches(unsigned long flags)
107972 for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
107973 if (!kmalloc_caches[i]) {
107974 kmalloc_caches[i] = create_kmalloc_cache(NULL,
107975- 1 << i, flags);
107976+ 1 << i, SLAB_USERCOPY | flags);
107977 }
107978
107979 /*
107980@@ -845,10 +887,10 @@ void __init create_kmalloc_caches(unsigned long flags)
107981 * earlier power of two caches
107982 */
107983 if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
107984- kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, flags);
107985+ kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, SLAB_USERCOPY | flags);
107986
107987 if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
107988- kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, flags);
107989+ kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, SLAB_USERCOPY | flags);
107990 }
107991
107992 /* Kmalloc array is now usable */
107993@@ -881,6 +923,23 @@ void __init create_kmalloc_caches(unsigned long flags)
107994 }
107995 }
107996 #endif
107997+
107998+#ifdef CONFIG_PAX_USERCOPY_SLABS
107999+ for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
108000+ struct kmem_cache *s = kmalloc_caches[i];
108001+
108002+ if (s) {
108003+ int size = kmalloc_size(i);
108004+ char *n = kasprintf(GFP_NOWAIT,
108005+ "usercopy-kmalloc-%d", size);
108006+
108007+ BUG_ON(!n);
108008+ kmalloc_usercopy_caches[i] = create_kmalloc_cache(n,
108009+ size, SLAB_USERCOPY | flags);
108010+ }
108011+ }
108012+#endif
108013+
108014 }
108015 #endif /* !CONFIG_SLOB */
108016
108017@@ -940,6 +999,9 @@ static void print_slabinfo_header(struct seq_file *m)
108018 seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
108019 "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
108020 seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
108021+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108022+ seq_puts(m, " : pax <sanitized> <not_sanitized>");
108023+#endif
108024 #endif
108025 seq_putc(m, '\n');
108026 }
108027@@ -1069,7 +1131,7 @@ static int __init slab_proc_init(void)
108028 module_init(slab_proc_init);
108029 #endif /* CONFIG_SLABINFO */
108030
108031-static __always_inline void *__do_krealloc(const void *p, size_t new_size,
108032+static __always_inline void * __size_overflow(2) __do_krealloc(const void *p, size_t new_size,
108033 gfp_t flags)
108034 {
108035 void *ret;
108036diff --git a/mm/slob.c b/mm/slob.c
108037index 94a7fed..cf3fb1a 100644
108038--- a/mm/slob.c
108039+++ b/mm/slob.c
108040@@ -157,7 +157,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
108041 /*
108042 * Return the size of a slob block.
108043 */
108044-static slobidx_t slob_units(slob_t *s)
108045+static slobidx_t slob_units(const slob_t *s)
108046 {
108047 if (s->units > 0)
108048 return s->units;
108049@@ -167,7 +167,7 @@ static slobidx_t slob_units(slob_t *s)
108050 /*
108051 * Return the next free slob block pointer after this one.
108052 */
108053-static slob_t *slob_next(slob_t *s)
108054+static slob_t *slob_next(const slob_t *s)
108055 {
108056 slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
108057 slobidx_t next;
108058@@ -182,14 +182,14 @@ static slob_t *slob_next(slob_t *s)
108059 /*
108060 * Returns true if s is the last free block in its page.
108061 */
108062-static int slob_last(slob_t *s)
108063+static int slob_last(const slob_t *s)
108064 {
108065 return !((unsigned long)slob_next(s) & ~PAGE_MASK);
108066 }
108067
108068-static void *slob_new_pages(gfp_t gfp, int order, int node)
108069+static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
108070 {
108071- void *page;
108072+ struct page *page;
108073
108074 #ifdef CONFIG_NUMA
108075 if (node != NUMA_NO_NODE)
108076@@ -201,14 +201,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
108077 if (!page)
108078 return NULL;
108079
108080- return page_address(page);
108081+ __SetPageSlab(page);
108082+ return page;
108083 }
108084
108085-static void slob_free_pages(void *b, int order)
108086+static void slob_free_pages(struct page *sp, int order)
108087 {
108088 if (current->reclaim_state)
108089 current->reclaim_state->reclaimed_slab += 1 << order;
108090- free_pages((unsigned long)b, order);
108091+ __ClearPageSlab(sp);
108092+ page_mapcount_reset(sp);
108093+ sp->private = 0;
108094+ __free_pages(sp, order);
108095 }
108096
108097 /*
108098@@ -313,15 +317,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
108099
108100 /* Not enough space: must allocate a new page */
108101 if (!b) {
108102- b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
108103- if (!b)
108104+ sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
108105+ if (!sp)
108106 return NULL;
108107- sp = virt_to_page(b);
108108- __SetPageSlab(sp);
108109+ b = page_address(sp);
108110
108111 spin_lock_irqsave(&slob_lock, flags);
108112 sp->units = SLOB_UNITS(PAGE_SIZE);
108113 sp->freelist = b;
108114+ sp->private = 0;
108115 INIT_LIST_HEAD(&sp->lru);
108116 set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
108117 set_slob_page_free(sp, slob_list);
108118@@ -337,7 +341,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
108119 /*
108120 * slob_free: entry point into the slob allocator.
108121 */
108122-static void slob_free(void *block, int size)
108123+static void slob_free(struct kmem_cache *c, void *block, int size)
108124 {
108125 struct page *sp;
108126 slob_t *prev, *next, *b = (slob_t *)block;
108127@@ -359,12 +363,15 @@ static void slob_free(void *block, int size)
108128 if (slob_page_free(sp))
108129 clear_slob_page_free(sp);
108130 spin_unlock_irqrestore(&slob_lock, flags);
108131- __ClearPageSlab(sp);
108132- page_mapcount_reset(sp);
108133- slob_free_pages(b, 0);
108134+ slob_free_pages(sp, 0);
108135 return;
108136 }
108137
108138+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108139+ if (pax_sanitize_slab && !(c && (c->flags & SLAB_NO_SANITIZE)))
108140+ memset(block, PAX_MEMORY_SANITIZE_VALUE, size);
108141+#endif
108142+
108143 if (!slob_page_free(sp)) {
108144 /* This slob page is about to become partially free. Easy! */
108145 sp->units = units;
108146@@ -424,11 +431,10 @@ out:
108147 */
108148
108149 static __always_inline void *
108150-__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108151+__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
108152 {
108153- unsigned int *m;
108154- int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108155- void *ret;
108156+ slob_t *m;
108157+ void *ret = NULL;
108158
108159 gfp &= gfp_allowed_mask;
108160
108161@@ -442,27 +448,45 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108162
108163 if (!m)
108164 return NULL;
108165- *m = size;
108166+ BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
108167+ BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
108168+ m[0].units = size;
108169+ m[1].units = align;
108170 ret = (void *)m + align;
108171
108172 trace_kmalloc_node(caller, ret,
108173 size, size + align, gfp, node);
108174 } else {
108175 unsigned int order = get_order(size);
108176+ struct page *page;
108177
108178 if (likely(order))
108179 gfp |= __GFP_COMP;
108180- ret = slob_new_pages(gfp, order, node);
108181+ page = slob_new_pages(gfp, order, node);
108182+ if (page) {
108183+ ret = page_address(page);
108184+ page->private = size;
108185+ }
108186
108187 trace_kmalloc_node(caller, ret,
108188 size, PAGE_SIZE << order, gfp, node);
108189 }
108190
108191- kmemleak_alloc(ret, size, 1, gfp);
108192 return ret;
108193 }
108194
108195-void *__kmalloc(size_t size, gfp_t gfp)
108196+static __always_inline void *
108197+__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108198+{
108199+ int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108200+ void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
108201+
108202+ if (!ZERO_OR_NULL_PTR(ret))
108203+ kmemleak_alloc(ret, size, 1, gfp);
108204+ return ret;
108205+}
108206+
108207+void * __size_overflow(1) __kmalloc(size_t size, gfp_t gfp)
108208 {
108209 return __do_kmalloc_node(size, gfp, NUMA_NO_NODE, _RET_IP_);
108210 }
108211@@ -491,34 +515,112 @@ void kfree(const void *block)
108212 return;
108213 kmemleak_free(block);
108214
108215+ VM_BUG_ON(!virt_addr_valid(block));
108216 sp = virt_to_page(block);
108217- if (PageSlab(sp)) {
108218+ VM_BUG_ON(!PageSlab(sp));
108219+ if (!sp->private) {
108220 int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108221- unsigned int *m = (unsigned int *)(block - align);
108222- slob_free(m, *m + align);
108223- } else
108224+ slob_t *m = (slob_t *)(block - align);
108225+ slob_free(NULL, m, m[0].units + align);
108226+ } else {
108227+ __ClearPageSlab(sp);
108228+ page_mapcount_reset(sp);
108229+ sp->private = 0;
108230 __free_pages(sp, compound_order(sp));
108231+ }
108232 }
108233 EXPORT_SYMBOL(kfree);
108234
108235+bool is_usercopy_object(const void *ptr)
108236+{
108237+ if (!slab_is_available())
108238+ return false;
108239+
108240+ // PAX: TODO
108241+
108242+ return false;
108243+}
108244+
108245+#ifdef CONFIG_PAX_USERCOPY
108246+const char *check_heap_object(const void *ptr, unsigned long n)
108247+{
108248+ struct page *page;
108249+ const slob_t *free;
108250+ const void *base;
108251+ unsigned long flags;
108252+
108253+ if (ZERO_OR_NULL_PTR(ptr))
108254+ return "<null>";
108255+
108256+ if (!virt_addr_valid(ptr))
108257+ return NULL;
108258+
108259+ page = virt_to_head_page(ptr);
108260+ if (!PageSlab(page))
108261+ return NULL;
108262+
108263+ if (page->private) {
108264+ base = page;
108265+ if (base <= ptr && n <= page->private - (ptr - base))
108266+ return NULL;
108267+ return "<slob>";
108268+ }
108269+
108270+ /* some tricky double walking to find the chunk */
108271+ spin_lock_irqsave(&slob_lock, flags);
108272+ base = (void *)((unsigned long)ptr & PAGE_MASK);
108273+ free = page->freelist;
108274+
108275+ while (!slob_last(free) && (void *)free <= ptr) {
108276+ base = free + slob_units(free);
108277+ free = slob_next(free);
108278+ }
108279+
108280+ while (base < (void *)free) {
108281+ slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
108282+ int size = SLOB_UNIT * SLOB_UNITS(m + align);
108283+ int offset;
108284+
108285+ if (ptr < base + align)
108286+ break;
108287+
108288+ offset = ptr - base - align;
108289+ if (offset >= m) {
108290+ base += size;
108291+ continue;
108292+ }
108293+
108294+ if (n > m - offset)
108295+ break;
108296+
108297+ spin_unlock_irqrestore(&slob_lock, flags);
108298+ return NULL;
108299+ }
108300+
108301+ spin_unlock_irqrestore(&slob_lock, flags);
108302+ return "<slob>";
108303+}
108304+#endif
108305+
108306 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
108307 size_t ksize(const void *block)
108308 {
108309 struct page *sp;
108310 int align;
108311- unsigned int *m;
108312+ slob_t *m;
108313
108314 BUG_ON(!block);
108315 if (unlikely(block == ZERO_SIZE_PTR))
108316 return 0;
108317
108318 sp = virt_to_page(block);
108319- if (unlikely(!PageSlab(sp)))
108320- return PAGE_SIZE << compound_order(sp);
108321+ VM_BUG_ON(!PageSlab(sp));
108322+ if (sp->private)
108323+ return sp->private;
108324
108325 align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108326- m = (unsigned int *)(block - align);
108327- return SLOB_UNITS(*m) * SLOB_UNIT;
108328+ m = (slob_t *)(block - align);
108329+ return SLOB_UNITS(m[0].units) * SLOB_UNIT;
108330 }
108331 EXPORT_SYMBOL(ksize);
108332
108333@@ -534,23 +636,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
108334
108335 void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
108336 {
108337- void *b;
108338+ void *b = NULL;
108339
108340 flags &= gfp_allowed_mask;
108341
108342 lockdep_trace_alloc(flags);
108343
108344+#ifdef CONFIG_PAX_USERCOPY_SLABS
108345+ b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
108346+#else
108347 if (c->size < PAGE_SIZE) {
108348 b = slob_alloc(c->size, flags, c->align, node);
108349 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
108350 SLOB_UNITS(c->size) * SLOB_UNIT,
108351 flags, node);
108352 } else {
108353- b = slob_new_pages(flags, get_order(c->size), node);
108354+ struct page *sp;
108355+
108356+ sp = slob_new_pages(flags, get_order(c->size), node);
108357+ if (sp) {
108358+ b = page_address(sp);
108359+ sp->private = c->size;
108360+ }
108361 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
108362 PAGE_SIZE << get_order(c->size),
108363 flags, node);
108364 }
108365+#endif
108366
108367 if (b && c->ctor)
108368 c->ctor(b);
108369@@ -567,7 +679,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
108370 EXPORT_SYMBOL(kmem_cache_alloc);
108371
108372 #ifdef CONFIG_NUMA
108373-void *__kmalloc_node(size_t size, gfp_t gfp, int node)
108374+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t gfp, int node)
108375 {
108376 return __do_kmalloc_node(size, gfp, node, _RET_IP_);
108377 }
108378@@ -580,12 +692,16 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t gfp, int node)
108379 EXPORT_SYMBOL(kmem_cache_alloc_node);
108380 #endif
108381
108382-static void __kmem_cache_free(void *b, int size)
108383+static void __kmem_cache_free(struct kmem_cache *c, void *b, int size)
108384 {
108385- if (size < PAGE_SIZE)
108386- slob_free(b, size);
108387+ struct page *sp;
108388+
108389+ sp = virt_to_page(b);
108390+ BUG_ON(!PageSlab(sp));
108391+ if (!sp->private)
108392+ slob_free(c, b, size);
108393 else
108394- slob_free_pages(b, get_order(size));
108395+ slob_free_pages(sp, get_order(size));
108396 }
108397
108398 static void kmem_rcu_free(struct rcu_head *head)
108399@@ -593,22 +709,36 @@ static void kmem_rcu_free(struct rcu_head *head)
108400 struct slob_rcu *slob_rcu = (struct slob_rcu *)head;
108401 void *b = (void *)slob_rcu - (slob_rcu->size - sizeof(struct slob_rcu));
108402
108403- __kmem_cache_free(b, slob_rcu->size);
108404+ __kmem_cache_free(NULL, b, slob_rcu->size);
108405 }
108406
108407 void kmem_cache_free(struct kmem_cache *c, void *b)
108408 {
108409+ int size = c->size;
108410+
108411+#ifdef CONFIG_PAX_USERCOPY_SLABS
108412+ if (size + c->align < PAGE_SIZE) {
108413+ size += c->align;
108414+ b -= c->align;
108415+ }
108416+#endif
108417+
108418 kmemleak_free_recursive(b, c->flags);
108419 if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
108420 struct slob_rcu *slob_rcu;
108421- slob_rcu = b + (c->size - sizeof(struct slob_rcu));
108422- slob_rcu->size = c->size;
108423+ slob_rcu = b + (size - sizeof(struct slob_rcu));
108424+ slob_rcu->size = size;
108425 call_rcu(&slob_rcu->head, kmem_rcu_free);
108426 } else {
108427- __kmem_cache_free(b, c->size);
108428+ __kmem_cache_free(c, b, size);
108429 }
108430
108431+#ifdef CONFIG_PAX_USERCOPY_SLABS
108432+ trace_kfree(_RET_IP_, b);
108433+#else
108434 trace_kmem_cache_free(_RET_IP_, b);
108435+#endif
108436+
108437 }
108438 EXPORT_SYMBOL(kmem_cache_free);
108439
108440diff --git a/mm/slub.c b/mm/slub.c
108441index 82c4737..55c316a 100644
108442--- a/mm/slub.c
108443+++ b/mm/slub.c
108444@@ -198,7 +198,7 @@ struct track {
108445
108446 enum track_item { TRACK_ALLOC, TRACK_FREE };
108447
108448-#ifdef CONFIG_SYSFS
108449+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108450 static int sysfs_slab_add(struct kmem_cache *);
108451 static int sysfs_slab_alias(struct kmem_cache *, const char *);
108452 static void memcg_propagate_slab_attrs(struct kmem_cache *s);
108453@@ -556,7 +556,7 @@ static void print_track(const char *s, struct track *t)
108454 if (!t->addr)
108455 return;
108456
108457- pr_err("INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
108458+ pr_err("INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
108459 s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
108460 #ifdef CONFIG_STACKTRACE
108461 {
108462@@ -2709,6 +2709,14 @@ static __always_inline void slab_free(struct kmem_cache *s,
108463
108464 slab_free_hook(s, x);
108465
108466+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108467+ if (!(s->flags & SLAB_NO_SANITIZE)) {
108468+ memset(x, PAX_MEMORY_SANITIZE_VALUE, s->object_size);
108469+ if (s->ctor)
108470+ s->ctor(x);
108471+ }
108472+#endif
108473+
108474 redo:
108475 /*
108476 * Determine the currently cpus per cpu slab.
108477@@ -3050,6 +3058,9 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)
108478 s->inuse = size;
108479
108480 if (((flags & (SLAB_DESTROY_BY_RCU | SLAB_POISON)) ||
108481+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108482+ (!(flags & SLAB_NO_SANITIZE)) ||
108483+#endif
108484 s->ctor)) {
108485 /*
108486 * Relocate free pointer after the object if it is not
108487@@ -3304,7 +3315,7 @@ static int __init setup_slub_min_objects(char *str)
108488
108489 __setup("slub_min_objects=", setup_slub_min_objects);
108490
108491-void *__kmalloc(size_t size, gfp_t flags)
108492+void * __size_overflow(1) __kmalloc(size_t size, gfp_t flags)
108493 {
108494 struct kmem_cache *s;
108495 void *ret;
108496@@ -3342,7 +3353,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
108497 return ptr;
108498 }
108499
108500-void *__kmalloc_node(size_t size, gfp_t flags, int node)
108501+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
108502 {
108503 struct kmem_cache *s;
108504 void *ret;
108505@@ -3390,6 +3401,59 @@ static size_t __ksize(const void *object)
108506 return slab_ksize(page->slab_cache);
108507 }
108508
108509+bool is_usercopy_object(const void *ptr)
108510+{
108511+ struct page *page;
108512+ struct kmem_cache *s;
108513+
108514+ if (ZERO_OR_NULL_PTR(ptr))
108515+ return false;
108516+
108517+ if (!slab_is_available())
108518+ return false;
108519+
108520+ if (!virt_addr_valid(ptr))
108521+ return false;
108522+
108523+ page = virt_to_head_page(ptr);
108524+
108525+ if (!PageSlab(page))
108526+ return false;
108527+
108528+ s = page->slab_cache;
108529+ return s->flags & SLAB_USERCOPY;
108530+}
108531+
108532+#ifdef CONFIG_PAX_USERCOPY
108533+const char *check_heap_object(const void *ptr, unsigned long n)
108534+{
108535+ struct page *page;
108536+ struct kmem_cache *s;
108537+ unsigned long offset;
108538+
108539+ if (ZERO_OR_NULL_PTR(ptr))
108540+ return "<null>";
108541+
108542+ if (!virt_addr_valid(ptr))
108543+ return NULL;
108544+
108545+ page = virt_to_head_page(ptr);
108546+
108547+ if (!PageSlab(page))
108548+ return NULL;
108549+
108550+ s = page->slab_cache;
108551+ if (!(s->flags & SLAB_USERCOPY))
108552+ return s->name;
108553+
108554+ offset = (ptr - page_address(page)) % s->size;
108555+ if (offset <= s->object_size && n <= s->object_size - offset)
108556+ return NULL;
108557+
108558+ return s->name;
108559+}
108560+#endif
108561+
108562 size_t ksize(const void *object)
108563 {
108564 size_t size = __ksize(object);
108565@@ -3410,6 +3474,7 @@ void kfree(const void *x)
108566 if (unlikely(ZERO_OR_NULL_PTR(x)))
108567 return;
108568
108569+ VM_BUG_ON(!virt_addr_valid(x));
108570 page = virt_to_head_page(x);
108571 if (unlikely(!PageSlab(page))) {
108572 BUG_ON(!PageCompound(page));
108573@@ -3726,7 +3791,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
108574
108575 s = find_mergeable(size, align, flags, name, ctor);
108576 if (s) {
108577- s->refcount++;
108578+ atomic_inc(&s->refcount);
108579
108580 /*
108581 * Adjust the object sizes so that we clear
108582@@ -3742,7 +3807,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
108583 }
108584
108585 if (sysfs_slab_alias(s, name)) {
108586- s->refcount--;
108587+ atomic_dec(&s->refcount);
108588 s = NULL;
108589 }
108590 }
108591@@ -3859,7 +3924,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
108592 }
108593 #endif
108594
108595-#ifdef CONFIG_SYSFS
108596+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108597 static int count_inuse(struct page *page)
108598 {
108599 return page->inuse;
108600@@ -4140,7 +4205,11 @@ static int list_locations(struct kmem_cache *s, char *buf,
108601 len += sprintf(buf + len, "%7ld ", l->count);
108602
108603 if (l->addr)
108604+#ifdef CONFIG_GRKERNSEC_HIDESYM
108605+ len += sprintf(buf + len, "%pS", NULL);
108606+#else
108607 len += sprintf(buf + len, "%pS", (void *)l->addr);
108608+#endif
108609 else
108610 len += sprintf(buf + len, "<not-available>");
108611
108612@@ -4238,12 +4307,12 @@ static void __init resiliency_test(void)
108613 validate_slab_cache(kmalloc_caches[9]);
108614 }
108615 #else
108616-#ifdef CONFIG_SYSFS
108617+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108618 static void resiliency_test(void) {};
108619 #endif
108620 #endif
108621
108622-#ifdef CONFIG_SYSFS
108623+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108624 enum slab_stat_type {
108625 SL_ALL, /* All slabs */
108626 SL_PARTIAL, /* Only partially allocated slabs */
108627@@ -4480,13 +4549,17 @@ static ssize_t ctor_show(struct kmem_cache *s, char *buf)
108628 {
108629 if (!s->ctor)
108630 return 0;
108631+#ifdef CONFIG_GRKERNSEC_HIDESYM
108632+ return sprintf(buf, "%pS\n", NULL);
108633+#else
108634 return sprintf(buf, "%pS\n", s->ctor);
108635+#endif
108636 }
108637 SLAB_ATTR_RO(ctor);
108638
108639 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
108640 {
108641- return sprintf(buf, "%d\n", s->refcount < 0 ? 0 : s->refcount - 1);
108642+ return sprintf(buf, "%d\n", atomic_read(&s->refcount) < 0 ? 0 : atomic_read(&s->refcount) - 1);
108643 }
108644 SLAB_ATTR_RO(aliases);
108645
108646@@ -4574,6 +4647,22 @@ static ssize_t cache_dma_show(struct kmem_cache *s, char *buf)
108647 SLAB_ATTR_RO(cache_dma);
108648 #endif
108649
108650+#ifdef CONFIG_PAX_USERCOPY_SLABS
108651+static ssize_t usercopy_show(struct kmem_cache *s, char *buf)
108652+{
108653+ return sprintf(buf, "%d\n", !!(s->flags & SLAB_USERCOPY));
108654+}
108655+SLAB_ATTR_RO(usercopy);
108656+#endif
108657+
108658+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108659+static ssize_t sanitize_show(struct kmem_cache *s, char *buf)
108660+{
108661+ return sprintf(buf, "%d\n", !(s->flags & SLAB_NO_SANITIZE));
108662+}
108663+SLAB_ATTR_RO(sanitize);
108664+#endif
108665+
108666 static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
108667 {
108668 return sprintf(buf, "%d\n", !!(s->flags & SLAB_DESTROY_BY_RCU));
108669@@ -4629,7 +4718,7 @@ static ssize_t trace_store(struct kmem_cache *s, const char *buf,
108670 * as well as cause other issues like converting a mergeable
108671 * cache into an umergeable one.
108672 */
108673- if (s->refcount > 1)
108674+ if (atomic_read(&s->refcount) > 1)
108675 return -EINVAL;
108676
108677 s->flags &= ~SLAB_TRACE;
108678@@ -4749,7 +4838,7 @@ static ssize_t failslab_show(struct kmem_cache *s, char *buf)
108679 static ssize_t failslab_store(struct kmem_cache *s, const char *buf,
108680 size_t length)
108681 {
108682- if (s->refcount > 1)
108683+ if (atomic_read(&s->refcount) > 1)
108684 return -EINVAL;
108685
108686 s->flags &= ~SLAB_FAILSLAB;
108687@@ -4916,6 +5005,12 @@ static struct attribute *slab_attrs[] = {
108688 #ifdef CONFIG_ZONE_DMA
108689 &cache_dma_attr.attr,
108690 #endif
108691+#ifdef CONFIG_PAX_USERCOPY_SLABS
108692+ &usercopy_attr.attr,
108693+#endif
108694+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108695+ &sanitize_attr.attr,
108696+#endif
108697 #ifdef CONFIG_NUMA
108698 &remote_node_defrag_ratio_attr.attr,
108699 #endif
108700@@ -5157,6 +5252,7 @@ static char *create_unique_id(struct kmem_cache *s)
108701 return name;
108702 }
108703
108704+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108705 static int sysfs_slab_add(struct kmem_cache *s)
108706 {
108707 int err;
108708@@ -5230,6 +5326,7 @@ void sysfs_slab_remove(struct kmem_cache *s)
108709 kobject_del(&s->kobj);
108710 kobject_put(&s->kobj);
108711 }
108712+#endif
108713
108714 /*
108715 * Need to buffer aliases during bootup until sysfs becomes
108716@@ -5243,6 +5340,7 @@ struct saved_alias {
108717
108718 static struct saved_alias *alias_list;
108719
108720+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108721 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
108722 {
108723 struct saved_alias *al;
108724@@ -5265,6 +5363,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
108725 alias_list = al;
108726 return 0;
108727 }
108728+#endif
108729
108730 static int __init slab_sysfs_init(void)
108731 {
108732diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
108733index 4cba9c2..b4f9fcc 100644
108734--- a/mm/sparse-vmemmap.c
108735+++ b/mm/sparse-vmemmap.c
108736@@ -131,7 +131,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
108737 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
108738 if (!p)
108739 return NULL;
108740- pud_populate(&init_mm, pud, p);
108741+ pud_populate_kernel(&init_mm, pud, p);
108742 }
108743 return pud;
108744 }
108745@@ -143,7 +143,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
108746 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
108747 if (!p)
108748 return NULL;
108749- pgd_populate(&init_mm, pgd, p);
108750+ pgd_populate_kernel(&init_mm, pgd, p);
108751 }
108752 return pgd;
108753 }
108754diff --git a/mm/sparse.c b/mm/sparse.c
108755index d1b48b6..6e8590e 100644
108756--- a/mm/sparse.c
108757+++ b/mm/sparse.c
108758@@ -750,7 +750,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
108759
108760 for (i = 0; i < PAGES_PER_SECTION; i++) {
108761 if (PageHWPoison(&memmap[i])) {
108762- atomic_long_sub(1, &num_poisoned_pages);
108763+ atomic_long_sub_unchecked(1, &num_poisoned_pages);
108764 ClearPageHWPoison(&memmap[i]);
108765 }
108766 }
108767diff --git a/mm/swap.c b/mm/swap.c
108768index cd3a5e6..40c0c8f 100644
108769--- a/mm/swap.c
108770+++ b/mm/swap.c
108771@@ -31,6 +31,7 @@
108772 #include <linux/memcontrol.h>
108773 #include <linux/gfp.h>
108774 #include <linux/uio.h>
108775+#include <linux/hugetlb.h>
108776
108777 #include "internal.h"
108778
108779@@ -77,6 +78,8 @@ static void __put_compound_page(struct page *page)
108780
108781 __page_cache_release(page);
108782 dtor = get_compound_page_dtor(page);
108783+ if (!PageHuge(page))
108784+ BUG_ON(dtor != free_compound_page);
108785 (*dtor)(page);
108786 }
108787
108788diff --git a/mm/swapfile.c b/mm/swapfile.c
108789index 63f55cc..31874e6 100644
108790--- a/mm/swapfile.c
108791+++ b/mm/swapfile.c
108792@@ -84,7 +84,7 @@ static DEFINE_MUTEX(swapon_mutex);
108793
108794 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
108795 /* Activity counter to indicate that a swapon or swapoff has occurred */
108796-static atomic_t proc_poll_event = ATOMIC_INIT(0);
108797+static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
108798
108799 static inline unsigned char swap_count(unsigned char ent)
108800 {
108801@@ -1944,7 +1944,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
108802 spin_unlock(&swap_lock);
108803
108804 err = 0;
108805- atomic_inc(&proc_poll_event);
108806+ atomic_inc_unchecked(&proc_poll_event);
108807 wake_up_interruptible(&proc_poll_wait);
108808
108809 out_dput:
108810@@ -1961,8 +1961,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
108811
108812 poll_wait(file, &proc_poll_wait, wait);
108813
108814- if (seq->poll_event != atomic_read(&proc_poll_event)) {
108815- seq->poll_event = atomic_read(&proc_poll_event);
108816+ if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
108817+ seq->poll_event = atomic_read_unchecked(&proc_poll_event);
108818 return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
108819 }
108820
108821@@ -2060,7 +2060,7 @@ static int swaps_open(struct inode *inode, struct file *file)
108822 return ret;
108823
108824 seq = file->private_data;
108825- seq->poll_event = atomic_read(&proc_poll_event);
108826+ seq->poll_event = atomic_read_unchecked(&proc_poll_event);
108827 return 0;
108828 }
108829
108830@@ -2520,7 +2520,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
108831 (frontswap_map) ? "FS" : "");
108832
108833 mutex_unlock(&swapon_mutex);
108834- atomic_inc(&proc_poll_event);
108835+ atomic_inc_unchecked(&proc_poll_event);
108836 wake_up_interruptible(&proc_poll_wait);
108837
108838 if (S_ISREG(inode->i_mode))
108839diff --git a/mm/util.c b/mm/util.c
108840index 3981ae9..28b585b 100644
108841--- a/mm/util.c
108842+++ b/mm/util.c
108843@@ -233,6 +233,12 @@ struct task_struct *task_of_stack(struct task_struct *task,
108844 void arch_pick_mmap_layout(struct mm_struct *mm)
108845 {
108846 mm->mmap_base = TASK_UNMAPPED_BASE;
108847+
108848+#ifdef CONFIG_PAX_RANDMMAP
108849+ if (mm->pax_flags & MF_PAX_RANDMMAP)
108850+ mm->mmap_base += mm->delta_mmap;
108851+#endif
108852+
108853 mm->get_unmapped_area = arch_get_unmapped_area;
108854 }
108855 #endif
108856@@ -403,6 +409,9 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen)
108857 if (!mm->arg_end)
108858 goto out_mm; /* Shh! No looking before we're done */
108859
108860+ if (gr_acl_handle_procpidmem(task))
108861+ goto out_mm;
108862+
108863 len = mm->arg_end - mm->arg_start;
108864
108865 if (len > buflen)
108866diff --git a/mm/vmalloc.c b/mm/vmalloc.c
108867index 49abccf..7bd1931 100644
108868--- a/mm/vmalloc.c
108869+++ b/mm/vmalloc.c
108870@@ -39,20 +39,65 @@ struct vfree_deferred {
108871 struct work_struct wq;
108872 };
108873 static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
108874+static DEFINE_PER_CPU(struct vfree_deferred, vunmap_deferred);
108875+
108876+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
108877+struct stack_deferred_llist {
108878+ struct llist_head list;
108879+ void *stack;
108880+ void *lowmem_stack;
108881+};
108882+
108883+struct stack_deferred {
108884+ struct stack_deferred_llist list;
108885+ struct work_struct wq;
108886+};
108887+
108888+static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
108889+#endif
108890
108891 static void __vunmap(const void *, int);
108892
108893-static void free_work(struct work_struct *w)
108894+static void vfree_work(struct work_struct *w)
108895 {
108896 struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
108897 struct llist_node *llnode = llist_del_all(&p->list);
108898 while (llnode) {
108899- void *p = llnode;
108900+ void *x = llnode;
108901 llnode = llist_next(llnode);
108902- __vunmap(p, 1);
108903+ __vunmap(x, 1);
108904 }
108905 }
108906
108907+static void vunmap_work(struct work_struct *w)
108908+{
108909+ struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
108910+ struct llist_node *llnode = llist_del_all(&p->list);
108911+ while (llnode) {
108912+ void *x = llnode;
108913+ llnode = llist_next(llnode);
108914+ __vunmap(x, 0);
108915+ }
108916+}
108917+
108918+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
108919+static void unmap_work(struct work_struct *w)
108920+{
108921+ struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
108922+ struct llist_node *llnode = llist_del_all(&p->list.list);
108923+ while (llnode) {
108924+ struct stack_deferred_llist *x =
108925+ llist_entry((struct llist_head *)llnode,
108926+ struct stack_deferred_llist, list);
108927+ void *stack = ACCESS_ONCE(x->stack);
108928+ void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
108929+ llnode = llist_next(llnode);
108930+ __vunmap(stack, 0);
108931+ free_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
108932+ }
108933+}
108934+#endif
108935+
108936 /*** Page table manipulation functions ***/
108937
108938 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
108939@@ -61,8 +106,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
108940
108941 pte = pte_offset_kernel(pmd, addr);
108942 do {
108943- pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
108944- WARN_ON(!pte_none(ptent) && !pte_present(ptent));
108945+
108946+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
108947+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
108948+ BUG_ON(!pte_exec(*pte));
108949+ set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
108950+ continue;
108951+ }
108952+#endif
108953+
108954+ {
108955+ pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
108956+ WARN_ON(!pte_none(ptent) && !pte_present(ptent));
108957+ }
108958 } while (pte++, addr += PAGE_SIZE, addr != end);
108959 }
108960
108961@@ -122,16 +178,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
108962 pte = pte_alloc_kernel(pmd, addr);
108963 if (!pte)
108964 return -ENOMEM;
108965+
108966+ pax_open_kernel();
108967 do {
108968 struct page *page = pages[*nr];
108969
108970- if (WARN_ON(!pte_none(*pte)))
108971+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
108972+ if (pgprot_val(prot) & _PAGE_NX)
108973+#endif
108974+
108975+ if (!pte_none(*pte)) {
108976+ pax_close_kernel();
108977+ WARN_ON(1);
108978 return -EBUSY;
108979- if (WARN_ON(!page))
108980+ }
108981+ if (!page) {
108982+ pax_close_kernel();
108983+ WARN_ON(1);
108984 return -ENOMEM;
108985+ }
108986 set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
108987 (*nr)++;
108988 } while (pte++, addr += PAGE_SIZE, addr != end);
108989+ pax_close_kernel();
108990 return 0;
108991 }
108992
108993@@ -141,7 +210,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
108994 pmd_t *pmd;
108995 unsigned long next;
108996
108997- pmd = pmd_alloc(&init_mm, pud, addr);
108998+ pmd = pmd_alloc_kernel(&init_mm, pud, addr);
108999 if (!pmd)
109000 return -ENOMEM;
109001 do {
109002@@ -158,7 +227,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
109003 pud_t *pud;
109004 unsigned long next;
109005
109006- pud = pud_alloc(&init_mm, pgd, addr);
109007+ pud = pud_alloc_kernel(&init_mm, pgd, addr);
109008 if (!pud)
109009 return -ENOMEM;
109010 do {
109011@@ -218,6 +287,12 @@ int is_vmalloc_or_module_addr(const void *x)
109012 if (addr >= MODULES_VADDR && addr < MODULES_END)
109013 return 1;
109014 #endif
109015+
109016+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
109017+ if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
109018+ return 1;
109019+#endif
109020+
109021 return is_vmalloc_addr(x);
109022 }
109023
109024@@ -238,8 +313,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
109025
109026 if (!pgd_none(*pgd)) {
109027 pud_t *pud = pud_offset(pgd, addr);
109028+#ifdef CONFIG_X86
109029+ if (!pud_large(*pud))
109030+#endif
109031 if (!pud_none(*pud)) {
109032 pmd_t *pmd = pmd_offset(pud, addr);
109033+#ifdef CONFIG_X86
109034+ if (!pmd_large(*pmd))
109035+#endif
109036 if (!pmd_none(*pmd)) {
109037 pte_t *ptep, pte;
109038
109039@@ -341,7 +422,7 @@ static void purge_vmap_area_lazy(void);
109040 * Allocate a region of KVA of the specified size and alignment, within the
109041 * vstart and vend.
109042 */
109043-static struct vmap_area *alloc_vmap_area(unsigned long size,
109044+static struct vmap_area * __size_overflow(1) alloc_vmap_area(unsigned long size,
109045 unsigned long align,
109046 unsigned long vstart, unsigned long vend,
109047 int node, gfp_t gfp_mask)
109048@@ -1182,13 +1263,27 @@ void __init vmalloc_init(void)
109049 for_each_possible_cpu(i) {
109050 struct vmap_block_queue *vbq;
109051 struct vfree_deferred *p;
109052+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109053+ struct stack_deferred *p2;
109054+#endif
109055
109056 vbq = &per_cpu(vmap_block_queue, i);
109057 spin_lock_init(&vbq->lock);
109058 INIT_LIST_HEAD(&vbq->free);
109059+
109060 p = &per_cpu(vfree_deferred, i);
109061 init_llist_head(&p->list);
109062- INIT_WORK(&p->wq, free_work);
109063+ INIT_WORK(&p->wq, vfree_work);
109064+
109065+ p = &per_cpu(vunmap_deferred, i);
109066+ init_llist_head(&p->list);
109067+ INIT_WORK(&p->wq, vunmap_work);
109068+
109069+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109070+ p2 = &per_cpu(stack_deferred, i);
109071+ init_llist_head(&p2->list.list);
109072+ INIT_WORK(&p2->wq, unmap_work);
109073+#endif
109074 }
109075
109076 /* Import existing vmlist entries. */
109077@@ -1313,6 +1408,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
109078 struct vm_struct *area;
109079
109080 BUG_ON(in_interrupt());
109081+
109082+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109083+ if (flags & VM_KERNEXEC) {
109084+ if (start != VMALLOC_START || end != VMALLOC_END)
109085+ return NULL;
109086+ start = (unsigned long)MODULES_EXEC_VADDR;
109087+ end = (unsigned long)MODULES_EXEC_END;
109088+ }
109089+#endif
109090+
109091 if (flags & VM_IOREMAP)
109092 align = 1ul << clamp(fls(size), PAGE_SHIFT, IOREMAP_MAX_ORDER);
109093
109094@@ -1510,13 +1615,36 @@ EXPORT_SYMBOL(vfree);
109095 */
109096 void vunmap(const void *addr)
109097 {
109098- BUG_ON(in_interrupt());
109099- might_sleep();
109100- if (addr)
109101+ if (!addr)
109102+ return;
109103+ if (unlikely(in_interrupt())) {
109104+ struct vfree_deferred *p = this_cpu_ptr(&vunmap_deferred);
109105+ if (llist_add((struct llist_node *)addr, &p->list))
109106+ schedule_work(&p->wq);
109107+ } else {
109108+ might_sleep();
109109 __vunmap(addr, 0);
109110+ }
109111 }
109112 EXPORT_SYMBOL(vunmap);
109113
109114+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109115+void unmap_process_stacks(struct task_struct *task)
109116+{
109117+ if (unlikely(in_interrupt())) {
109118+ struct stack_deferred *p = this_cpu_ptr(&stack_deferred);
109119+ struct stack_deferred_llist *list = task->stack;
109120+ list->stack = task->stack;
109121+ list->lowmem_stack = task->lowmem_stack;
109122+ if (llist_add((struct llist_node *)&list->list, &p->list.list))
109123+ schedule_work(&p->wq);
109124+ } else {
109125+ __vunmap(task->stack, 0);
109126+ free_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
109127+ }
109128+}
109129+#endif
109130+
109131 /**
109132 * vmap - map an array of pages into virtually contiguous space
109133 * @pages: array of page pointers
109134@@ -1537,6 +1665,11 @@ void *vmap(struct page **pages, unsigned int count,
109135 if (count > totalram_pages)
109136 return NULL;
109137
109138+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109139+ if (!(pgprot_val(prot) & _PAGE_NX))
109140+ flags |= VM_KERNEXEC;
109141+#endif
109142+
109143 area = get_vm_area_caller((count << PAGE_SHIFT), flags,
109144 __builtin_return_address(0));
109145 if (!area)
109146@@ -1641,6 +1774,14 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
109147 if (!size || (size >> PAGE_SHIFT) > totalram_pages)
109148 goto fail;
109149
109150+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109151+ if (!(pgprot_val(prot) & _PAGE_NX)) {
109152+ vm_flags |= VM_KERNEXEC;
109153+ start = VMALLOC_START;
109154+ end = VMALLOC_END;
109155+ }
109156+#endif
109157+
109158 area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
109159 vm_flags, start, end, node, gfp_mask, caller);
109160 if (!area)
109161@@ -1817,10 +1958,9 @@ EXPORT_SYMBOL(vzalloc_node);
109162 * For tight control over page level allocator and protection flags
109163 * use __vmalloc() instead.
109164 */
109165-
109166 void *vmalloc_exec(unsigned long size)
109167 {
109168- return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
109169+ return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
109170 NUMA_NO_NODE, __builtin_return_address(0));
109171 }
109172
109173@@ -2127,6 +2267,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
109174 {
109175 struct vm_struct *area;
109176
109177+ BUG_ON(vma->vm_mirror);
109178+
109179 size = PAGE_ALIGN(size);
109180
109181 if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
109182@@ -2609,7 +2751,11 @@ static int s_show(struct seq_file *m, void *p)
109183 v->addr, v->addr + v->size, v->size);
109184
109185 if (v->caller)
109186+#ifdef CONFIG_GRKERNSEC_HIDESYM
109187+ seq_printf(m, " %pK", v->caller);
109188+#else
109189 seq_printf(m, " %pS", v->caller);
109190+#endif
109191
109192 if (v->nr_pages)
109193 seq_printf(m, " pages=%d", v->nr_pages);
109194diff --git a/mm/vmstat.c b/mm/vmstat.c
109195index 4f5cd97..9fb715a 100644
109196--- a/mm/vmstat.c
109197+++ b/mm/vmstat.c
109198@@ -27,6 +27,7 @@
109199 #include <linux/mm_inline.h>
109200 #include <linux/page_ext.h>
109201 #include <linux/page_owner.h>
109202+#include <linux/grsecurity.h>
109203
109204 #include "internal.h"
109205
109206@@ -86,7 +87,7 @@ void vm_events_fold_cpu(int cpu)
109207 *
109208 * vm_stat contains the global counters
109209 */
109210-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
109211+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
109212 EXPORT_SYMBOL(vm_stat);
109213
109214 #ifdef CONFIG_SMP
109215@@ -438,7 +439,7 @@ static int fold_diff(int *diff)
109216
109217 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
109218 if (diff[i]) {
109219- atomic_long_add(diff[i], &vm_stat[i]);
109220+ atomic_long_add_unchecked(diff[i], &vm_stat[i]);
109221 changes++;
109222 }
109223 return changes;
109224@@ -476,7 +477,7 @@ static int refresh_cpu_vm_stats(void)
109225 v = this_cpu_xchg(p->vm_stat_diff[i], 0);
109226 if (v) {
109227
109228- atomic_long_add(v, &zone->vm_stat[i]);
109229+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109230 global_diff[i] += v;
109231 #ifdef CONFIG_NUMA
109232 /* 3 seconds idle till flush */
109233@@ -540,7 +541,7 @@ void cpu_vm_stats_fold(int cpu)
109234
109235 v = p->vm_stat_diff[i];
109236 p->vm_stat_diff[i] = 0;
109237- atomic_long_add(v, &zone->vm_stat[i]);
109238+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109239 global_diff[i] += v;
109240 }
109241 }
109242@@ -560,8 +561,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
109243 if (pset->vm_stat_diff[i]) {
109244 int v = pset->vm_stat_diff[i];
109245 pset->vm_stat_diff[i] = 0;
109246- atomic_long_add(v, &zone->vm_stat[i]);
109247- atomic_long_add(v, &vm_stat[i]);
109248+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109249+ atomic_long_add_unchecked(v, &vm_stat[i]);
109250 }
109251 }
109252 #endif
109253@@ -1293,10 +1294,22 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
109254 stat_items_size += sizeof(struct vm_event_state);
109255 #endif
109256
109257- v = kmalloc(stat_items_size, GFP_KERNEL);
109258+ v = kzalloc(stat_items_size, GFP_KERNEL);
109259 m->private = v;
109260 if (!v)
109261 return ERR_PTR(-ENOMEM);
109262+
109263+#ifdef CONFIG_GRKERNSEC_PROC_ADD
109264+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
109265+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
109266+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
109267+ && !in_group_p(grsec_proc_gid)
109268+#endif
109269+ )
109270+ return (unsigned long *)m->private + *pos;
109271+#endif
109272+#endif
109273+
109274 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
109275 v[i] = global_page_state(i);
109276 v += NR_VM_ZONE_STAT_ITEMS;
109277@@ -1528,10 +1541,16 @@ static int __init setup_vmstat(void)
109278 cpu_notifier_register_done();
109279 #endif
109280 #ifdef CONFIG_PROC_FS
109281- proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
109282- proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
109283- proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
109284- proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
109285+ {
109286+ mode_t gr_mode = S_IRUGO;
109287+#ifdef CONFIG_GRKERNSEC_PROC_ADD
109288+ gr_mode = S_IRUSR;
109289+#endif
109290+ proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
109291+ proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
109292+ proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
109293+ proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
109294+ }
109295 #endif
109296 return 0;
109297 }
109298diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
109299index 64c6bed..b79a5de 100644
109300--- a/net/8021q/vlan.c
109301+++ b/net/8021q/vlan.c
109302@@ -481,7 +481,7 @@ out:
109303 return NOTIFY_DONE;
109304 }
109305
109306-static struct notifier_block vlan_notifier_block __read_mostly = {
109307+static struct notifier_block vlan_notifier_block = {
109308 .notifier_call = vlan_device_event,
109309 };
109310
109311@@ -556,8 +556,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
109312 err = -EPERM;
109313 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
109314 break;
109315- if ((args.u.name_type >= 0) &&
109316- (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
109317+ if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
109318 struct vlan_net *vn;
109319
109320 vn = net_generic(net, vlan_net_id);
109321diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
109322index c92b52f..006c052 100644
109323--- a/net/8021q/vlan_netlink.c
109324+++ b/net/8021q/vlan_netlink.c
109325@@ -245,7 +245,7 @@ static struct net *vlan_get_link_net(const struct net_device *dev)
109326 return dev_net(real_dev);
109327 }
109328
109329-struct rtnl_link_ops vlan_link_ops __read_mostly = {
109330+struct rtnl_link_ops vlan_link_ops = {
109331 .kind = "vlan",
109332 .maxtype = IFLA_VLAN_MAX,
109333 .policy = vlan_policy,
109334diff --git a/net/9p/client.c b/net/9p/client.c
109335index e86a9bea..e91f70e 100644
109336--- a/net/9p/client.c
109337+++ b/net/9p/client.c
109338@@ -596,7 +596,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
109339 len - inline_len);
109340 } else {
109341 err = copy_from_user(ename + inline_len,
109342- uidata, len - inline_len);
109343+ (char __force_user *)uidata, len - inline_len);
109344 if (err) {
109345 err = -EFAULT;
109346 goto out_err;
109347@@ -1570,7 +1570,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
109348 kernel_buf = 1;
109349 indata = data;
109350 } else
109351- indata = (__force char *)udata;
109352+ indata = (__force_kernel char *)udata;
109353 /*
109354 * response header len is 11
109355 * PDU Header(7) + IO Size (4)
109356@@ -1645,7 +1645,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
109357 kernel_buf = 1;
109358 odata = data;
109359 } else
109360- odata = (char *)udata;
109361+ odata = (char __force_kernel *)udata;
109362 req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize,
109363 P9_ZC_HDR_SZ, kernel_buf, "dqd",
109364 fid->fid, offset, rsize);
109365diff --git a/net/9p/mod.c b/net/9p/mod.c
109366index 6ab36ae..6f1841b 100644
109367--- a/net/9p/mod.c
109368+++ b/net/9p/mod.c
109369@@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
109370 void v9fs_register_trans(struct p9_trans_module *m)
109371 {
109372 spin_lock(&v9fs_trans_lock);
109373- list_add_tail(&m->list, &v9fs_trans_list);
109374+ pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
109375 spin_unlock(&v9fs_trans_lock);
109376 }
109377 EXPORT_SYMBOL(v9fs_register_trans);
109378@@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
109379 void v9fs_unregister_trans(struct p9_trans_module *m)
109380 {
109381 spin_lock(&v9fs_trans_lock);
109382- list_del_init(&m->list);
109383+ pax_list_del_init((struct list_head *)&m->list);
109384 spin_unlock(&v9fs_trans_lock);
109385 }
109386 EXPORT_SYMBOL(v9fs_unregister_trans);
109387diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
109388index 80d08f6..de63fd1 100644
109389--- a/net/9p/trans_fd.c
109390+++ b/net/9p/trans_fd.c
109391@@ -428,7 +428,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
109392 oldfs = get_fs();
109393 set_fs(get_ds());
109394 /* The cast to a user pointer is valid due to the set_fs() */
109395- ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
109396+ ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
109397 set_fs(oldfs);
109398
109399 if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
109400diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
109401index af46bc4..f9adfcd 100644
109402--- a/net/appletalk/atalk_proc.c
109403+++ b/net/appletalk/atalk_proc.c
109404@@ -256,7 +256,7 @@ int __init atalk_proc_init(void)
109405 struct proc_dir_entry *p;
109406 int rc = -ENOMEM;
109407
109408- atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
109409+ atalk_proc_dir = proc_mkdir_restrict("atalk", init_net.proc_net);
109410 if (!atalk_proc_dir)
109411 goto out;
109412
109413diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
109414index 876fbe8..8bbea9f 100644
109415--- a/net/atm/atm_misc.c
109416+++ b/net/atm/atm_misc.c
109417@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
109418 if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
109419 return 1;
109420 atm_return(vcc, truesize);
109421- atomic_inc(&vcc->stats->rx_drop);
109422+ atomic_inc_unchecked(&vcc->stats->rx_drop);
109423 return 0;
109424 }
109425 EXPORT_SYMBOL(atm_charge);
109426@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
109427 }
109428 }
109429 atm_return(vcc, guess);
109430- atomic_inc(&vcc->stats->rx_drop);
109431+ atomic_inc_unchecked(&vcc->stats->rx_drop);
109432 return NULL;
109433 }
109434 EXPORT_SYMBOL(atm_alloc_charge);
109435@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
109436
109437 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
109438 {
109439-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
109440+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
109441 __SONET_ITEMS
109442 #undef __HANDLE_ITEM
109443 }
109444@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
109445
109446 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
109447 {
109448-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
109449+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
109450 __SONET_ITEMS
109451 #undef __HANDLE_ITEM
109452 }
109453diff --git a/net/atm/lec.c b/net/atm/lec.c
109454index 4b98f89..5a2f6cb 100644
109455--- a/net/atm/lec.c
109456+++ b/net/atm/lec.c
109457@@ -111,9 +111,9 @@ static inline void lec_arp_put(struct lec_arp_table *entry)
109458 }
109459
109460 static struct lane2_ops lane2_ops = {
109461- lane2_resolve, /* resolve, spec 3.1.3 */
109462- lane2_associate_req, /* associate_req, spec 3.1.4 */
109463- NULL /* associate indicator, spec 3.1.5 */
109464+ .resolve = lane2_resolve,
109465+ .associate_req = lane2_associate_req,
109466+ .associate_indicator = NULL
109467 };
109468
109469 static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
109470diff --git a/net/atm/lec.h b/net/atm/lec.h
109471index 4149db1..f2ab682 100644
109472--- a/net/atm/lec.h
109473+++ b/net/atm/lec.h
109474@@ -48,7 +48,7 @@ struct lane2_ops {
109475 const u8 *tlvs, u32 sizeoftlvs);
109476 void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
109477 const u8 *tlvs, u32 sizeoftlvs);
109478-};
109479+} __no_const;
109480
109481 /*
109482 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
109483diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
109484index d1b2d9a..d549f7f 100644
109485--- a/net/atm/mpoa_caches.c
109486+++ b/net/atm/mpoa_caches.c
109487@@ -535,30 +535,30 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
109488
109489
109490 static struct in_cache_ops ingress_ops = {
109491- in_cache_add_entry, /* add_entry */
109492- in_cache_get, /* get */
109493- in_cache_get_with_mask, /* get_with_mask */
109494- in_cache_get_by_vcc, /* get_by_vcc */
109495- in_cache_put, /* put */
109496- in_cache_remove_entry, /* remove_entry */
109497- cache_hit, /* cache_hit */
109498- clear_count_and_expired, /* clear_count */
109499- check_resolving_entries, /* check_resolving */
109500- refresh_entries, /* refresh */
109501- in_destroy_cache /* destroy_cache */
109502+ .add_entry = in_cache_add_entry,
109503+ .get = in_cache_get,
109504+ .get_with_mask = in_cache_get_with_mask,
109505+ .get_by_vcc = in_cache_get_by_vcc,
109506+ .put = in_cache_put,
109507+ .remove_entry = in_cache_remove_entry,
109508+ .cache_hit = cache_hit,
109509+ .clear_count = clear_count_and_expired,
109510+ .check_resolving = check_resolving_entries,
109511+ .refresh = refresh_entries,
109512+ .destroy_cache = in_destroy_cache
109513 };
109514
109515 static struct eg_cache_ops egress_ops = {
109516- eg_cache_add_entry, /* add_entry */
109517- eg_cache_get_by_cache_id, /* get_by_cache_id */
109518- eg_cache_get_by_tag, /* get_by_tag */
109519- eg_cache_get_by_vcc, /* get_by_vcc */
109520- eg_cache_get_by_src_ip, /* get_by_src_ip */
109521- eg_cache_put, /* put */
109522- eg_cache_remove_entry, /* remove_entry */
109523- update_eg_cache_entry, /* update */
109524- clear_expired, /* clear_expired */
109525- eg_destroy_cache /* destroy_cache */
109526+ .add_entry = eg_cache_add_entry,
109527+ .get_by_cache_id = eg_cache_get_by_cache_id,
109528+ .get_by_tag = eg_cache_get_by_tag,
109529+ .get_by_vcc = eg_cache_get_by_vcc,
109530+ .get_by_src_ip = eg_cache_get_by_src_ip,
109531+ .put = eg_cache_put,
109532+ .remove_entry = eg_cache_remove_entry,
109533+ .update = update_eg_cache_entry,
109534+ .clear_expired = clear_expired,
109535+ .destroy_cache = eg_destroy_cache
109536 };
109537
109538
109539diff --git a/net/atm/proc.c b/net/atm/proc.c
109540index bbb6461..cf04016 100644
109541--- a/net/atm/proc.c
109542+++ b/net/atm/proc.c
109543@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
109544 const struct k_atm_aal_stats *stats)
109545 {
109546 seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
109547- atomic_read(&stats->tx), atomic_read(&stats->tx_err),
109548- atomic_read(&stats->rx), atomic_read(&stats->rx_err),
109549- atomic_read(&stats->rx_drop));
109550+ atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
109551+ atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
109552+ atomic_read_unchecked(&stats->rx_drop));
109553 }
109554
109555 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
109556diff --git a/net/atm/resources.c b/net/atm/resources.c
109557index 0447d5d..3cf4728 100644
109558--- a/net/atm/resources.c
109559+++ b/net/atm/resources.c
109560@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
109561 static void copy_aal_stats(struct k_atm_aal_stats *from,
109562 struct atm_aal_stats *to)
109563 {
109564-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
109565+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
109566 __AAL_STAT_ITEMS
109567 #undef __HANDLE_ITEM
109568 }
109569@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
109570 static void subtract_aal_stats(struct k_atm_aal_stats *from,
109571 struct atm_aal_stats *to)
109572 {
109573-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
109574+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
109575 __AAL_STAT_ITEMS
109576 #undef __HANDLE_ITEM
109577 }
109578diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
109579index 919a5ce..cc6b444 100644
109580--- a/net/ax25/sysctl_net_ax25.c
109581+++ b/net/ax25/sysctl_net_ax25.c
109582@@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
109583 {
109584 char path[sizeof("net/ax25/") + IFNAMSIZ];
109585 int k;
109586- struct ctl_table *table;
109587+ ctl_table_no_const *table;
109588
109589 table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
109590 if (!table)
109591diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
109592index 00e00e0..710fcd2 100644
109593--- a/net/batman-adv/bat_iv_ogm.c
109594+++ b/net/batman-adv/bat_iv_ogm.c
109595@@ -312,7 +312,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
109596
109597 /* randomize initial seqno to avoid collision */
109598 get_random_bytes(&random_seqno, sizeof(random_seqno));
109599- atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
109600+ atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
109601
109602 hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
109603 ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
109604@@ -917,9 +917,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
109605 batadv_ogm_packet->tvlv_len = htons(tvlv_len);
109606
109607 /* change sequence number to network order */
109608- seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
109609+ seqno = (uint32_t)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
109610 batadv_ogm_packet->seqno = htonl(seqno);
109611- atomic_inc(&hard_iface->bat_iv.ogm_seqno);
109612+ atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
109613
109614 batadv_iv_ogm_slide_own_bcast_window(hard_iface);
109615
109616@@ -1596,7 +1596,7 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
109617 return;
109618
109619 /* could be changed by schedule_own_packet() */
109620- if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
109621+ if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
109622
109623 if (ogm_packet->flags & BATADV_DIRECTLINK)
109624 has_directlink_flag = true;
109625diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
109626index 3d1dcaa..4699f4e 100644
109627--- a/net/batman-adv/fragmentation.c
109628+++ b/net/batman-adv/fragmentation.c
109629@@ -449,7 +449,7 @@ bool batadv_frag_send_packet(struct sk_buff *skb,
109630 frag_header.packet_type = BATADV_UNICAST_FRAG;
109631 frag_header.version = BATADV_COMPAT_VERSION;
109632 frag_header.ttl = BATADV_TTL;
109633- frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
109634+ frag_header.seqno = htons(atomic_inc_return_unchecked(&bat_priv->frag_seqno));
109635 frag_header.reserved = 0;
109636 frag_header.no = 0;
109637 frag_header.total_size = htons(skb->len);
109638diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
109639index 5ec31d7..e371631 100644
109640--- a/net/batman-adv/soft-interface.c
109641+++ b/net/batman-adv/soft-interface.c
109642@@ -295,7 +295,7 @@ send:
109643 primary_if->net_dev->dev_addr);
109644
109645 /* set broadcast sequence number */
109646- seqno = atomic_inc_return(&bat_priv->bcast_seqno);
109647+ seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
109648 bcast_packet->seqno = htonl(seqno);
109649
109650 batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
109651@@ -760,7 +760,7 @@ static int batadv_softif_init_late(struct net_device *dev)
109652 atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
109653
109654 atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
109655- atomic_set(&bat_priv->bcast_seqno, 1);
109656+ atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
109657 atomic_set(&bat_priv->tt.vn, 0);
109658 atomic_set(&bat_priv->tt.local_changes, 0);
109659 atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
109660@@ -774,7 +774,7 @@ static int batadv_softif_init_late(struct net_device *dev)
109661
109662 /* randomize initial seqno to avoid collision */
109663 get_random_bytes(&random_seqno, sizeof(random_seqno));
109664- atomic_set(&bat_priv->frag_seqno, random_seqno);
109665+ atomic_set_unchecked(&bat_priv->frag_seqno, random_seqno);
109666
109667 bat_priv->primary_if = NULL;
109668 bat_priv->num_ifaces = 0;
109669@@ -982,7 +982,7 @@ int batadv_softif_is_valid(const struct net_device *net_dev)
109670 return 0;
109671 }
109672
109673-struct rtnl_link_ops batadv_link_ops __read_mostly = {
109674+struct rtnl_link_ops batadv_link_ops = {
109675 .kind = "batadv",
109676 .priv_size = sizeof(struct batadv_priv),
109677 .setup = batadv_softif_init_early,
109678diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
109679index 9398c3f..0e79657 100644
109680--- a/net/batman-adv/types.h
109681+++ b/net/batman-adv/types.h
109682@@ -67,7 +67,7 @@ enum batadv_dhcp_recipient {
109683 struct batadv_hard_iface_bat_iv {
109684 unsigned char *ogm_buff;
109685 int ogm_buff_len;
109686- atomic_t ogm_seqno;
109687+ atomic_unchecked_t ogm_seqno;
109688 };
109689
109690 /**
109691@@ -766,7 +766,7 @@ struct batadv_priv {
109692 atomic_t bonding;
109693 atomic_t fragmentation;
109694 atomic_t packet_size_max;
109695- atomic_t frag_seqno;
109696+ atomic_unchecked_t frag_seqno;
109697 #ifdef CONFIG_BATMAN_ADV_BLA
109698 atomic_t bridge_loop_avoidance;
109699 #endif
109700@@ -785,7 +785,7 @@ struct batadv_priv {
109701 #endif
109702 uint32_t isolation_mark;
109703 uint32_t isolation_mark_mask;
109704- atomic_t bcast_seqno;
109705+ atomic_unchecked_t bcast_seqno;
109706 atomic_t bcast_queue_left;
109707 atomic_t batman_queue_left;
109708 char num_ifaces;
109709diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
109710index 1d65c5b..43e55fd 100644
109711--- a/net/bluetooth/hci_sock.c
109712+++ b/net/bluetooth/hci_sock.c
109713@@ -1042,7 +1042,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
109714 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
109715 }
109716
109717- len = min_t(unsigned int, len, sizeof(uf));
109718+ len = min((size_t)len, sizeof(uf));
109719 if (copy_from_user(&uf, optval, len)) {
109720 err = -EFAULT;
109721 break;
109722diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
109723index 6ba33f9..4afc26f 100644
109724--- a/net/bluetooth/l2cap_core.c
109725+++ b/net/bluetooth/l2cap_core.c
109726@@ -3534,8 +3534,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
109727 break;
109728
109729 case L2CAP_CONF_RFC:
109730- if (olen == sizeof(rfc))
109731- memcpy(&rfc, (void *)val, olen);
109732+ if (olen != sizeof(rfc))
109733+ break;
109734+
109735+ memcpy(&rfc, (void *)val, olen);
109736
109737 if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
109738 rfc.mode != chan->mode)
109739diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
109740index 60694f0..32623ed 100644
109741--- a/net/bluetooth/l2cap_sock.c
109742+++ b/net/bluetooth/l2cap_sock.c
109743@@ -633,7 +633,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
109744 struct sock *sk = sock->sk;
109745 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
109746 struct l2cap_options opts;
109747- int len, err = 0;
109748+ int err = 0;
109749+ size_t len = optlen;
109750 u32 opt;
109751
109752 BT_DBG("sk %p", sk);
109753@@ -660,7 +661,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
109754 opts.max_tx = chan->max_tx;
109755 opts.txwin_size = chan->tx_win;
109756
109757- len = min_t(unsigned int, sizeof(opts), optlen);
109758+ len = min(sizeof(opts), len);
109759 if (copy_from_user((char *) &opts, optval, len)) {
109760 err = -EFAULT;
109761 break;
109762@@ -747,7 +748,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109763 struct bt_security sec;
109764 struct bt_power pwr;
109765 struct l2cap_conn *conn;
109766- int len, err = 0;
109767+ int err = 0;
109768+ size_t len = optlen;
109769 u32 opt;
109770
109771 BT_DBG("sk %p", sk);
109772@@ -771,7 +773,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109773
109774 sec.level = BT_SECURITY_LOW;
109775
109776- len = min_t(unsigned int, sizeof(sec), optlen);
109777+ len = min(sizeof(sec), len);
109778 if (copy_from_user((char *) &sec, optval, len)) {
109779 err = -EFAULT;
109780 break;
109781@@ -867,7 +869,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109782
109783 pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
109784
109785- len = min_t(unsigned int, sizeof(pwr), optlen);
109786+ len = min(sizeof(pwr), len);
109787 if (copy_from_user((char *) &pwr, optval, len)) {
109788 err = -EFAULT;
109789 break;
109790diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
109791index 3c6d2c8..6afc970 100644
109792--- a/net/bluetooth/rfcomm/sock.c
109793+++ b/net/bluetooth/rfcomm/sock.c
109794@@ -686,7 +686,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
109795 struct sock *sk = sock->sk;
109796 struct bt_security sec;
109797 int err = 0;
109798- size_t len;
109799+ size_t len = optlen;
109800 u32 opt;
109801
109802 BT_DBG("sk %p", sk);
109803@@ -708,7 +708,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
109804
109805 sec.level = BT_SECURITY_LOW;
109806
109807- len = min_t(unsigned int, sizeof(sec), optlen);
109808+ len = min(sizeof(sec), len);
109809 if (copy_from_user((char *) &sec, optval, len)) {
109810 err = -EFAULT;
109811 break;
109812diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
109813index 8e385a0..a5bdd8e 100644
109814--- a/net/bluetooth/rfcomm/tty.c
109815+++ b/net/bluetooth/rfcomm/tty.c
109816@@ -752,7 +752,7 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
109817 BT_DBG("tty %p id %d", tty, tty->index);
109818
109819 BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
109820- dev->channel, dev->port.count);
109821+ dev->channel, atomic_read(&dev->port.count));
109822
109823 err = tty_port_open(&dev->port, tty, filp);
109824 if (err)
109825@@ -775,7 +775,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
109826 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
109827
109828 BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
109829- dev->port.count);
109830+ atomic_read(&dev->port.count));
109831
109832 tty_port_close(&dev->port, tty, filp);
109833 }
109834diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
109835index 4fbcea0..69a6786 100644
109836--- a/net/bridge/br_netlink.c
109837+++ b/net/bridge/br_netlink.c
109838@@ -726,7 +726,7 @@ static struct rtnl_af_ops br_af_ops __read_mostly = {
109839 .get_link_af_size = br_get_link_af_size,
109840 };
109841
109842-struct rtnl_link_ops br_link_ops __read_mostly = {
109843+struct rtnl_link_ops br_link_ops = {
109844 .kind = "bridge",
109845 .priv_size = sizeof(struct net_bridge),
109846 .setup = br_dev_setup,
109847diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
109848index 91180a7..1301daa 100644
109849--- a/net/bridge/netfilter/ebtables.c
109850+++ b/net/bridge/netfilter/ebtables.c
109851@@ -1533,7 +1533,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
109852 tmp.valid_hooks = t->table->valid_hooks;
109853 }
109854 mutex_unlock(&ebt_mutex);
109855- if (copy_to_user(user, &tmp, *len) != 0) {
109856+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
109857 BUGPRINT("c2u Didn't work\n");
109858 ret = -EFAULT;
109859 break;
109860@@ -2339,7 +2339,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
109861 goto out;
109862 tmp.valid_hooks = t->valid_hooks;
109863
109864- if (copy_to_user(user, &tmp, *len) != 0) {
109865+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
109866 ret = -EFAULT;
109867 break;
109868 }
109869@@ -2350,7 +2350,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
109870 tmp.entries_size = t->table->entries_size;
109871 tmp.valid_hooks = t->table->valid_hooks;
109872
109873- if (copy_to_user(user, &tmp, *len) != 0) {
109874+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
109875 ret = -EFAULT;
109876 break;
109877 }
109878diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
109879index f5afda1..dcf770a 100644
109880--- a/net/caif/cfctrl.c
109881+++ b/net/caif/cfctrl.c
109882@@ -10,6 +10,7 @@
109883 #include <linux/spinlock.h>
109884 #include <linux/slab.h>
109885 #include <linux/pkt_sched.h>
109886+#include <linux/sched.h>
109887 #include <net/caif/caif_layer.h>
109888 #include <net/caif/cfpkt.h>
109889 #include <net/caif/cfctrl.h>
109890@@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
109891 memset(&dev_info, 0, sizeof(dev_info));
109892 dev_info.id = 0xff;
109893 cfsrvl_init(&this->serv, 0, &dev_info, false);
109894- atomic_set(&this->req_seq_no, 1);
109895- atomic_set(&this->rsp_seq_no, 1);
109896+ atomic_set_unchecked(&this->req_seq_no, 1);
109897+ atomic_set_unchecked(&this->rsp_seq_no, 1);
109898 this->serv.layer.receive = cfctrl_recv;
109899 sprintf(this->serv.layer.name, "ctrl");
109900 this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
109901@@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
109902 struct cfctrl_request_info *req)
109903 {
109904 spin_lock_bh(&ctrl->info_list_lock);
109905- atomic_inc(&ctrl->req_seq_no);
109906- req->sequence_no = atomic_read(&ctrl->req_seq_no);
109907+ atomic_inc_unchecked(&ctrl->req_seq_no);
109908+ req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
109909 list_add_tail(&req->list, &ctrl->list);
109910 spin_unlock_bh(&ctrl->info_list_lock);
109911 }
109912@@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
109913 if (p != first)
109914 pr_warn("Requests are not received in order\n");
109915
109916- atomic_set(&ctrl->rsp_seq_no,
109917+ atomic_set_unchecked(&ctrl->rsp_seq_no,
109918 p->sequence_no);
109919 list_del(&p->list);
109920 goto out;
109921diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
109922index 67a4a36..8d28068 100644
109923--- a/net/caif/chnl_net.c
109924+++ b/net/caif/chnl_net.c
109925@@ -515,7 +515,7 @@ static const struct nla_policy ipcaif_policy[IFLA_CAIF_MAX + 1] = {
109926 };
109927
109928
109929-static struct rtnl_link_ops ipcaif_link_ops __read_mostly = {
109930+static struct rtnl_link_ops ipcaif_link_ops = {
109931 .kind = "caif",
109932 .priv_size = sizeof(struct chnl_net),
109933 .setup = ipcaif_net_setup,
109934diff --git a/net/can/af_can.c b/net/can/af_can.c
109935index 32d710e..93bcf05 100644
109936--- a/net/can/af_can.c
109937+++ b/net/can/af_can.c
109938@@ -884,7 +884,7 @@ static const struct net_proto_family can_family_ops = {
109939 };
109940
109941 /* notifier block for netdevice event */
109942-static struct notifier_block can_netdev_notifier __read_mostly = {
109943+static struct notifier_block can_netdev_notifier = {
109944 .notifier_call = can_notifier,
109945 };
109946
109947diff --git a/net/can/bcm.c b/net/can/bcm.c
109948index ee9ffd9..dfdf3d4 100644
109949--- a/net/can/bcm.c
109950+++ b/net/can/bcm.c
109951@@ -1619,7 +1619,7 @@ static int __init bcm_module_init(void)
109952 }
109953
109954 /* create /proc/net/can-bcm directory */
109955- proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
109956+ proc_dir = proc_mkdir_restrict("can-bcm", init_net.proc_net);
109957 return 0;
109958 }
109959
109960diff --git a/net/can/gw.c b/net/can/gw.c
109961index a6f448e..5902171 100644
109962--- a/net/can/gw.c
109963+++ b/net/can/gw.c
109964@@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
109965 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
109966
109967 static HLIST_HEAD(cgw_list);
109968-static struct notifier_block notifier;
109969
109970 static struct kmem_cache *cgw_cache __read_mostly;
109971
109972@@ -948,6 +947,10 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
109973 return err;
109974 }
109975
109976+static struct notifier_block notifier = {
109977+ .notifier_call = cgw_notifier
109978+};
109979+
109980 static __init int cgw_module_init(void)
109981 {
109982 /* sanitize given module parameter */
109983@@ -963,7 +966,6 @@ static __init int cgw_module_init(void)
109984 return -ENOMEM;
109985
109986 /* set notifier */
109987- notifier.notifier_call = cgw_notifier;
109988 register_netdevice_notifier(&notifier);
109989
109990 if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
109991diff --git a/net/can/proc.c b/net/can/proc.c
109992index 1a19b98..df2b4ec 100644
109993--- a/net/can/proc.c
109994+++ b/net/can/proc.c
109995@@ -514,7 +514,7 @@ static void can_remove_proc_readentry(const char *name)
109996 void can_init_proc(void)
109997 {
109998 /* create /proc/net/can directory */
109999- can_dir = proc_mkdir("can", init_net.proc_net);
110000+ can_dir = proc_mkdir_restrict("can", init_net.proc_net);
110001
110002 if (!can_dir) {
110003 printk(KERN_INFO "can: failed to create /proc/net/can . "
110004diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
110005index a9f4ae4..ee19b92 100644
110006--- a/net/ceph/messenger.c
110007+++ b/net/ceph/messenger.c
110008@@ -188,7 +188,7 @@ static void con_fault(struct ceph_connection *con);
110009 #define MAX_ADDR_STR_LEN 64 /* 54 is enough */
110010
110011 static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
110012-static atomic_t addr_str_seq = ATOMIC_INIT(0);
110013+static atomic_unchecked_t addr_str_seq = ATOMIC_INIT(0);
110014
110015 static struct page *zero_page; /* used in certain error cases */
110016
110017@@ -199,7 +199,7 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss)
110018 struct sockaddr_in *in4 = (struct sockaddr_in *) ss;
110019 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) ss;
110020
110021- i = atomic_inc_return(&addr_str_seq) & ADDR_STR_COUNT_MASK;
110022+ i = atomic_inc_return_unchecked(&addr_str_seq) & ADDR_STR_COUNT_MASK;
110023 s = addr_str[i];
110024
110025 switch (ss->ss_family) {
110026diff --git a/net/compat.c b/net/compat.c
110027index f7bd286..76ea56a 100644
110028--- a/net/compat.c
110029+++ b/net/compat.c
110030@@ -100,20 +100,20 @@ ssize_t get_compat_msghdr(struct msghdr *kmsg,
110031
110032 #define CMSG_COMPAT_FIRSTHDR(msg) \
110033 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
110034- (struct compat_cmsghdr __user *)((msg)->msg_control) : \
110035+ (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \
110036 (struct compat_cmsghdr __user *)NULL)
110037
110038 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
110039 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
110040 (ucmlen) <= (unsigned long) \
110041 ((mhdr)->msg_controllen - \
110042- ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
110043+ ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
110044
110045 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
110046 struct compat_cmsghdr __user *cmsg, int cmsg_len)
110047 {
110048 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
110049- if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
110050+ if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
110051 msg->msg_controllen)
110052 return NULL;
110053 return (struct compat_cmsghdr __user *)ptr;
110054@@ -203,7 +203,7 @@ Efault:
110055
110056 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
110057 {
110058- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
110059+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
110060 struct compat_cmsghdr cmhdr;
110061 struct compat_timeval ctv;
110062 struct compat_timespec cts[3];
110063@@ -259,7 +259,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
110064
110065 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
110066 {
110067- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
110068+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
110069 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
110070 int fdnum = scm->fp->count;
110071 struct file **fp = scm->fp->fp;
110072@@ -347,7 +347,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
110073 return -EFAULT;
110074 old_fs = get_fs();
110075 set_fs(KERNEL_DS);
110076- err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
110077+ err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
110078 set_fs(old_fs);
110079
110080 return err;
110081@@ -408,7 +408,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
110082 len = sizeof(ktime);
110083 old_fs = get_fs();
110084 set_fs(KERNEL_DS);
110085- err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
110086+ err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
110087 set_fs(old_fs);
110088
110089 if (!err) {
110090@@ -551,7 +551,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110091 case MCAST_JOIN_GROUP:
110092 case MCAST_LEAVE_GROUP:
110093 {
110094- struct compat_group_req __user *gr32 = (void *)optval;
110095+ struct compat_group_req __user *gr32 = (void __user *)optval;
110096 struct group_req __user *kgr =
110097 compat_alloc_user_space(sizeof(struct group_req));
110098 u32 interface;
110099@@ -572,7 +572,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110100 case MCAST_BLOCK_SOURCE:
110101 case MCAST_UNBLOCK_SOURCE:
110102 {
110103- struct compat_group_source_req __user *gsr32 = (void *)optval;
110104+ struct compat_group_source_req __user *gsr32 = (void __user *)optval;
110105 struct group_source_req __user *kgsr = compat_alloc_user_space(
110106 sizeof(struct group_source_req));
110107 u32 interface;
110108@@ -593,7 +593,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110109 }
110110 case MCAST_MSFILTER:
110111 {
110112- struct compat_group_filter __user *gf32 = (void *)optval;
110113+ struct compat_group_filter __user *gf32 = (void __user *)optval;
110114 struct group_filter __user *kgf;
110115 u32 interface, fmode, numsrc;
110116
110117@@ -631,7 +631,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
110118 char __user *optval, int __user *optlen,
110119 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
110120 {
110121- struct compat_group_filter __user *gf32 = (void *)optval;
110122+ struct compat_group_filter __user *gf32 = (void __user *)optval;
110123 struct group_filter __user *kgf;
110124 int __user *koptlen;
110125 u32 interface, fmode, numsrc;
110126@@ -775,7 +775,7 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
110127
110128 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
110129 return -EINVAL;
110130- if (copy_from_user(a, args, nas[call]))
110131+ if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
110132 return -EFAULT;
110133 a0 = a[0];
110134 a1 = a[1];
110135diff --git a/net/core/datagram.c b/net/core/datagram.c
110136index df493d6..1145766 100644
110137--- a/net/core/datagram.c
110138+++ b/net/core/datagram.c
110139@@ -302,7 +302,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
110140 }
110141
110142 kfree_skb(skb);
110143- atomic_inc(&sk->sk_drops);
110144+ atomic_inc_unchecked(&sk->sk_drops);
110145 sk_mem_reclaim_partial(sk);
110146
110147 return err;
110148diff --git a/net/core/dev.c b/net/core/dev.c
110149index 22a53ac..1d19af7 100644
110150--- a/net/core/dev.c
110151+++ b/net/core/dev.c
110152@@ -1681,14 +1681,14 @@ int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
110153 {
110154 if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
110155 if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
110156- atomic_long_inc(&dev->rx_dropped);
110157+ atomic_long_inc_unchecked(&dev->rx_dropped);
110158 kfree_skb(skb);
110159 return NET_RX_DROP;
110160 }
110161 }
110162
110163 if (unlikely(!is_skb_forwardable(dev, skb))) {
110164- atomic_long_inc(&dev->rx_dropped);
110165+ atomic_long_inc_unchecked(&dev->rx_dropped);
110166 kfree_skb(skb);
110167 return NET_RX_DROP;
110168 }
110169@@ -2987,7 +2987,7 @@ recursion_alert:
110170 drop:
110171 rcu_read_unlock_bh();
110172
110173- atomic_long_inc(&dev->tx_dropped);
110174+ atomic_long_inc_unchecked(&dev->tx_dropped);
110175 kfree_skb_list(skb);
110176 return rc;
110177 out:
110178@@ -3336,7 +3336,7 @@ enqueue:
110179
110180 local_irq_restore(flags);
110181
110182- atomic_long_inc(&skb->dev->rx_dropped);
110183+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
110184 kfree_skb(skb);
110185 return NET_RX_DROP;
110186 }
110187@@ -3413,7 +3413,7 @@ int netif_rx_ni(struct sk_buff *skb)
110188 }
110189 EXPORT_SYMBOL(netif_rx_ni);
110190
110191-static void net_tx_action(struct softirq_action *h)
110192+static __latent_entropy void net_tx_action(void)
110193 {
110194 struct softnet_data *sd = this_cpu_ptr(&softnet_data);
110195
110196@@ -3751,7 +3751,7 @@ ncls:
110197 ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
110198 } else {
110199 drop:
110200- atomic_long_inc(&skb->dev->rx_dropped);
110201+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
110202 kfree_skb(skb);
110203 /* Jamal, now you will not able to escape explaining
110204 * me how you were going to use this. :-)
110205@@ -4640,7 +4640,7 @@ out_unlock:
110206 return work;
110207 }
110208
110209-static void net_rx_action(struct softirq_action *h)
110210+static __latent_entropy void net_rx_action(void)
110211 {
110212 struct softnet_data *sd = this_cpu_ptr(&softnet_data);
110213 unsigned long time_limit = jiffies + 2;
110214@@ -6676,8 +6676,8 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
110215 } else {
110216 netdev_stats_to_stats64(storage, &dev->stats);
110217 }
110218- storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
110219- storage->tx_dropped += atomic_long_read(&dev->tx_dropped);
110220+ storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
110221+ storage->tx_dropped += atomic_long_read_unchecked(&dev->tx_dropped);
110222 return storage;
110223 }
110224 EXPORT_SYMBOL(dev_get_stats);
110225diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
110226index b94b1d2..da3ed7c 100644
110227--- a/net/core/dev_ioctl.c
110228+++ b/net/core/dev_ioctl.c
110229@@ -368,8 +368,13 @@ void dev_load(struct net *net, const char *name)
110230 no_module = !dev;
110231 if (no_module && capable(CAP_NET_ADMIN))
110232 no_module = request_module("netdev-%s", name);
110233- if (no_module && capable(CAP_SYS_MODULE))
110234+ if (no_module && capable(CAP_SYS_MODULE)) {
110235+#ifdef CONFIG_GRKERNSEC_MODHARDEN
110236+ ___request_module(true, "grsec_modharden_netdev", "%s", name);
110237+#else
110238 request_module("%s", name);
110239+#endif
110240+ }
110241 }
110242 EXPORT_SYMBOL(dev_load);
110243
110244diff --git a/net/core/filter.c b/net/core/filter.c
110245index f6bdc2b..76eba8e 100644
110246--- a/net/core/filter.c
110247+++ b/net/core/filter.c
110248@@ -533,7 +533,11 @@ do_pass:
110249
110250 /* Unknown instruction. */
110251 default:
110252- goto err;
110253+ WARN(1, KERN_ALERT "Unknown sock filter code:%u jt:%u tf:%u k:%u\n",
110254+ fp->code, fp->jt, fp->jf, fp->k);
110255+ kfree(addrs);
110256+ BUG();
110257+ return -EINVAL;
110258 }
110259
110260 insn++;
110261@@ -577,7 +581,7 @@ static int check_load_and_stores(const struct sock_filter *filter, int flen)
110262 u16 *masks, memvalid = 0; /* One bit per cell, 16 cells */
110263 int pc, ret = 0;
110264
110265- BUILD_BUG_ON(BPF_MEMWORDS > 16);
110266+ BUILD_BUG_ON(BPF_MEMWORDS != 16);
110267
110268 masks = kmalloc_array(flen, sizeof(*masks), GFP_KERNEL);
110269 if (!masks)
110270@@ -992,7 +996,7 @@ int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog)
110271 if (!fp)
110272 return -ENOMEM;
110273
110274- memcpy(fp->insns, fprog->filter, fsize);
110275+ memcpy(fp->insns, (void __force_kernel *)fprog->filter, fsize);
110276
110277 fp->len = fprog->len;
110278 /* Since unattached filters are not copied back to user
110279diff --git a/net/core/flow.c b/net/core/flow.c
110280index 1033725..340f65d 100644
110281--- a/net/core/flow.c
110282+++ b/net/core/flow.c
110283@@ -65,7 +65,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
110284 static int flow_entry_valid(struct flow_cache_entry *fle,
110285 struct netns_xfrm *xfrm)
110286 {
110287- if (atomic_read(&xfrm->flow_cache_genid) != fle->genid)
110288+ if (atomic_read_unchecked(&xfrm->flow_cache_genid) != fle->genid)
110289 return 0;
110290 if (fle->object && !fle->object->ops->check(fle->object))
110291 return 0;
110292@@ -242,7 +242,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
110293 hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
110294 fcp->hash_count++;
110295 }
110296- } else if (likely(fle->genid == atomic_read(&net->xfrm.flow_cache_genid))) {
110297+ } else if (likely(fle->genid == atomic_read_unchecked(&net->xfrm.flow_cache_genid))) {
110298 flo = fle->object;
110299 if (!flo)
110300 goto ret_object;
110301@@ -263,7 +263,7 @@ nocache:
110302 }
110303 flo = resolver(net, key, family, dir, flo, ctx);
110304 if (fle) {
110305- fle->genid = atomic_read(&net->xfrm.flow_cache_genid);
110306+ fle->genid = atomic_read_unchecked(&net->xfrm.flow_cache_genid);
110307 if (!IS_ERR(flo))
110308 fle->object = flo;
110309 else
110310diff --git a/net/core/neighbour.c b/net/core/neighbour.c
110311index 70fe9e1..926784c 100644
110312--- a/net/core/neighbour.c
110313+++ b/net/core/neighbour.c
110314@@ -2806,7 +2806,7 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
110315 void __user *buffer, size_t *lenp, loff_t *ppos)
110316 {
110317 int size, ret;
110318- struct ctl_table tmp = *ctl;
110319+ ctl_table_no_const tmp = *ctl;
110320
110321 tmp.extra1 = &zero;
110322 tmp.extra2 = &unres_qlen_max;
110323@@ -2868,7 +2868,7 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
110324 void __user *buffer,
110325 size_t *lenp, loff_t *ppos)
110326 {
110327- struct ctl_table tmp = *ctl;
110328+ ctl_table_no_const tmp = *ctl;
110329 int ret;
110330
110331 tmp.extra1 = &zero;
110332diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
110333index 2bf8329..2eb1423 100644
110334--- a/net/core/net-procfs.c
110335+++ b/net/core/net-procfs.c
110336@@ -79,7 +79,13 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
110337 struct rtnl_link_stats64 temp;
110338 const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
110339
110340- seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110341+ if (gr_proc_is_restricted())
110342+ seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110343+ "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
110344+ dev->name, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL,
110345+ 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL);
110346+ else
110347+ seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110348 "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
110349 dev->name, stats->rx_bytes, stats->rx_packets,
110350 stats->rx_errors,
110351@@ -166,7 +172,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
110352 return 0;
110353 }
110354
110355-static const struct seq_operations dev_seq_ops = {
110356+const struct seq_operations dev_seq_ops = {
110357 .start = dev_seq_start,
110358 .next = dev_seq_next,
110359 .stop = dev_seq_stop,
110360@@ -196,7 +202,7 @@ static const struct seq_operations softnet_seq_ops = {
110361
110362 static int softnet_seq_open(struct inode *inode, struct file *file)
110363 {
110364- return seq_open(file, &softnet_seq_ops);
110365+ return seq_open_restrict(file, &softnet_seq_ops);
110366 }
110367
110368 static const struct file_operations softnet_seq_fops = {
110369@@ -283,8 +289,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
110370 else
110371 seq_printf(seq, "%04x", ntohs(pt->type));
110372
110373+#ifdef CONFIG_GRKERNSEC_HIDESYM
110374+ seq_printf(seq, " %-8s %pf\n",
110375+ pt->dev ? pt->dev->name : "", NULL);
110376+#else
110377 seq_printf(seq, " %-8s %pf\n",
110378 pt->dev ? pt->dev->name : "", pt->func);
110379+#endif
110380 }
110381
110382 return 0;
110383diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
110384index f2aa73b..0d1a1ea 100644
110385--- a/net/core/net-sysfs.c
110386+++ b/net/core/net-sysfs.c
110387@@ -279,7 +279,7 @@ static ssize_t carrier_changes_show(struct device *dev,
110388 {
110389 struct net_device *netdev = to_net_dev(dev);
110390 return sprintf(buf, fmt_dec,
110391- atomic_read(&netdev->carrier_changes));
110392+ atomic_read_unchecked(&netdev->carrier_changes));
110393 }
110394 static DEVICE_ATTR_RO(carrier_changes);
110395
110396diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
110397index 70d3450..eb7c528 100644
110398--- a/net/core/net_namespace.c
110399+++ b/net/core/net_namespace.c
110400@@ -663,7 +663,7 @@ static int __register_pernet_operations(struct list_head *list,
110401 int error;
110402 LIST_HEAD(net_exit_list);
110403
110404- list_add_tail(&ops->list, list);
110405+ pax_list_add_tail((struct list_head *)&ops->list, list);
110406 if (ops->init || (ops->id && ops->size)) {
110407 for_each_net(net) {
110408 error = ops_init(ops, net);
110409@@ -676,7 +676,7 @@ static int __register_pernet_operations(struct list_head *list,
110410
110411 out_undo:
110412 /* If I have an error cleanup all namespaces I initialized */
110413- list_del(&ops->list);
110414+ pax_list_del((struct list_head *)&ops->list);
110415 ops_exit_list(ops, &net_exit_list);
110416 ops_free_list(ops, &net_exit_list);
110417 return error;
110418@@ -687,7 +687,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
110419 struct net *net;
110420 LIST_HEAD(net_exit_list);
110421
110422- list_del(&ops->list);
110423+ pax_list_del((struct list_head *)&ops->list);
110424 for_each_net(net)
110425 list_add_tail(&net->exit_list, &net_exit_list);
110426 ops_exit_list(ops, &net_exit_list);
110427@@ -821,7 +821,7 @@ int register_pernet_device(struct pernet_operations *ops)
110428 mutex_lock(&net_mutex);
110429 error = register_pernet_operations(&pernet_list, ops);
110430 if (!error && (first_device == &pernet_list))
110431- first_device = &ops->list;
110432+ first_device = (struct list_head *)&ops->list;
110433 mutex_unlock(&net_mutex);
110434 return error;
110435 }
110436diff --git a/net/core/netpoll.c b/net/core/netpoll.c
110437index c126a87..10ad89d 100644
110438--- a/net/core/netpoll.c
110439+++ b/net/core/netpoll.c
110440@@ -377,7 +377,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
110441 struct udphdr *udph;
110442 struct iphdr *iph;
110443 struct ethhdr *eth;
110444- static atomic_t ip_ident;
110445+ static atomic_unchecked_t ip_ident;
110446 struct ipv6hdr *ip6h;
110447
110448 udp_len = len + sizeof(*udph);
110449@@ -448,7 +448,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
110450 put_unaligned(0x45, (unsigned char *)iph);
110451 iph->tos = 0;
110452 put_unaligned(htons(ip_len), &(iph->tot_len));
110453- iph->id = htons(atomic_inc_return(&ip_ident));
110454+ iph->id = htons(atomic_inc_return_unchecked(&ip_ident));
110455 iph->frag_off = 0;
110456 iph->ttl = 64;
110457 iph->protocol = IPPROTO_UDP;
110458diff --git a/net/core/pktgen.c b/net/core/pktgen.c
110459index 508155b..fad080f 100644
110460--- a/net/core/pktgen.c
110461+++ b/net/core/pktgen.c
110462@@ -3755,7 +3755,7 @@ static int __net_init pg_net_init(struct net *net)
110463 pn->net = net;
110464 INIT_LIST_HEAD(&pn->pktgen_threads);
110465 pn->pktgen_exiting = false;
110466- pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
110467+ pn->proc_dir = proc_mkdir_restrict(PG_PROC_DIR, pn->net->proc_net);
110468 if (!pn->proc_dir) {
110469 pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
110470 return -ENODEV;
110471diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
110472index 7ebed55..378bf34 100644
110473--- a/net/core/rtnetlink.c
110474+++ b/net/core/rtnetlink.c
110475@@ -61,7 +61,7 @@ struct rtnl_link {
110476 rtnl_doit_func doit;
110477 rtnl_dumpit_func dumpit;
110478 rtnl_calcit_func calcit;
110479-};
110480+} __no_const;
110481
110482 static DEFINE_MUTEX(rtnl_mutex);
110483
110484@@ -307,10 +307,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
110485 * to use the ops for creating device. So do not
110486 * fill up dellink as well. That disables rtnl_dellink.
110487 */
110488- if (ops->setup && !ops->dellink)
110489- ops->dellink = unregister_netdevice_queue;
110490+ if (ops->setup && !ops->dellink) {
110491+ pax_open_kernel();
110492+ *(void **)&ops->dellink = unregister_netdevice_queue;
110493+ pax_close_kernel();
110494+ }
110495
110496- list_add_tail(&ops->list, &link_ops);
110497+ pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
110498 return 0;
110499 }
110500 EXPORT_SYMBOL_GPL(__rtnl_link_register);
110501@@ -357,7 +360,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
110502 for_each_net(net) {
110503 __rtnl_kill_links(net, ops);
110504 }
110505- list_del(&ops->list);
110506+ pax_list_del((struct list_head *)&ops->list);
110507 }
110508 EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
110509
110510@@ -1047,7 +1050,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
110511 (dev->ifalias &&
110512 nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
110513 nla_put_u32(skb, IFLA_CARRIER_CHANGES,
110514- atomic_read(&dev->carrier_changes)))
110515+ atomic_read_unchecked(&dev->carrier_changes)))
110516 goto nla_put_failure;
110517
110518 if (1) {
110519diff --git a/net/core/scm.c b/net/core/scm.c
110520index 3b6899b..cf36238 100644
110521--- a/net/core/scm.c
110522+++ b/net/core/scm.c
110523@@ -209,7 +209,7 @@ EXPORT_SYMBOL(__scm_send);
110524 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
110525 {
110526 struct cmsghdr __user *cm
110527- = (__force struct cmsghdr __user *)msg->msg_control;
110528+ = (struct cmsghdr __force_user *)msg->msg_control;
110529 struct cmsghdr cmhdr;
110530 int cmlen = CMSG_LEN(len);
110531 int err;
110532@@ -232,7 +232,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
110533 err = -EFAULT;
110534 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
110535 goto out;
110536- if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
110537+ if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
110538 goto out;
110539 cmlen = CMSG_SPACE(len);
110540 if (msg->msg_controllen < cmlen)
110541@@ -248,7 +248,7 @@ EXPORT_SYMBOL(put_cmsg);
110542 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
110543 {
110544 struct cmsghdr __user *cm
110545- = (__force struct cmsghdr __user*)msg->msg_control;
110546+ = (struct cmsghdr __force_user *)msg->msg_control;
110547
110548 int fdmax = 0;
110549 int fdnum = scm->fp->count;
110550@@ -268,7 +268,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
110551 if (fdnum < fdmax)
110552 fdmax = fdnum;
110553
110554- for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
110555+ for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
110556 i++, cmfptr++)
110557 {
110558 struct socket *sock;
110559diff --git a/net/core/skbuff.c b/net/core/skbuff.c
110560index e9f9a15..6eb024e 100644
110561--- a/net/core/skbuff.c
110562+++ b/net/core/skbuff.c
110563@@ -2139,7 +2139,7 @@ EXPORT_SYMBOL(__skb_checksum);
110564 __wsum skb_checksum(const struct sk_buff *skb, int offset,
110565 int len, __wsum csum)
110566 {
110567- const struct skb_checksum_ops ops = {
110568+ static const struct skb_checksum_ops ops = {
110569 .update = csum_partial_ext,
110570 .combine = csum_block_add_ext,
110571 };
110572@@ -3379,12 +3379,14 @@ void __init skb_init(void)
110573 skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
110574 sizeof(struct sk_buff),
110575 0,
110576- SLAB_HWCACHE_ALIGN|SLAB_PANIC,
110577+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|
110578+ SLAB_NO_SANITIZE,
110579 NULL);
110580 skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
110581 sizeof(struct sk_buff_fclones),
110582 0,
110583- SLAB_HWCACHE_ALIGN|SLAB_PANIC,
110584+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|
110585+ SLAB_NO_SANITIZE,
110586 NULL);
110587 }
110588
110589diff --git a/net/core/sock.c b/net/core/sock.c
110590index 71e3e5f..ab90920 100644
110591--- a/net/core/sock.c
110592+++ b/net/core/sock.c
110593@@ -443,7 +443,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110594 struct sk_buff_head *list = &sk->sk_receive_queue;
110595
110596 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
110597- atomic_inc(&sk->sk_drops);
110598+ atomic_inc_unchecked(&sk->sk_drops);
110599 trace_sock_rcvqueue_full(sk, skb);
110600 return -ENOMEM;
110601 }
110602@@ -453,7 +453,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110603 return err;
110604
110605 if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
110606- atomic_inc(&sk->sk_drops);
110607+ atomic_inc_unchecked(&sk->sk_drops);
110608 return -ENOBUFS;
110609 }
110610
110611@@ -466,7 +466,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110612 skb_dst_force(skb);
110613
110614 spin_lock_irqsave(&list->lock, flags);
110615- skb->dropcount = atomic_read(&sk->sk_drops);
110616+ skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
110617 __skb_queue_tail(list, skb);
110618 spin_unlock_irqrestore(&list->lock, flags);
110619
110620@@ -486,7 +486,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
110621 skb->dev = NULL;
110622
110623 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) {
110624- atomic_inc(&sk->sk_drops);
110625+ atomic_inc_unchecked(&sk->sk_drops);
110626 goto discard_and_relse;
110627 }
110628 if (nested)
110629@@ -504,7 +504,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
110630 mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
110631 } else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
110632 bh_unlock_sock(sk);
110633- atomic_inc(&sk->sk_drops);
110634+ atomic_inc_unchecked(&sk->sk_drops);
110635 goto discard_and_relse;
110636 }
110637
110638@@ -910,6 +910,7 @@ set_rcvbuf:
110639 }
110640 break;
110641
110642+#ifndef GRKERNSEC_BPF_HARDEN
110643 case SO_ATTACH_BPF:
110644 ret = -EINVAL;
110645 if (optlen == sizeof(u32)) {
110646@@ -922,7 +923,7 @@ set_rcvbuf:
110647 ret = sk_attach_bpf(ufd, sk);
110648 }
110649 break;
110650-
110651+#endif
110652 case SO_DETACH_FILTER:
110653 ret = sk_detach_filter(sk);
110654 break;
110655@@ -1026,12 +1027,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110656 struct timeval tm;
110657 } v;
110658
110659- int lv = sizeof(int);
110660- int len;
110661+ unsigned int lv = sizeof(int);
110662+ unsigned int len;
110663
110664 if (get_user(len, optlen))
110665 return -EFAULT;
110666- if (len < 0)
110667+ if (len > INT_MAX)
110668 return -EINVAL;
110669
110670 memset(&v, 0, sizeof(v));
110671@@ -1169,11 +1170,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110672
110673 case SO_PEERNAME:
110674 {
110675- char address[128];
110676+ char address[_K_SS_MAXSIZE];
110677
110678 if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
110679 return -ENOTCONN;
110680- if (lv < len)
110681+ if (lv < len || sizeof address < len)
110682 return -EINVAL;
110683 if (copy_to_user(optval, address, len))
110684 return -EFAULT;
110685@@ -1258,7 +1259,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110686
110687 if (len > lv)
110688 len = lv;
110689- if (copy_to_user(optval, &v, len))
110690+ if (len > sizeof(v) || copy_to_user(optval, &v, len))
110691 return -EFAULT;
110692 lenout:
110693 if (put_user(len, optlen))
110694@@ -2375,7 +2376,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
110695 */
110696 smp_wmb();
110697 atomic_set(&sk->sk_refcnt, 1);
110698- atomic_set(&sk->sk_drops, 0);
110699+ atomic_set_unchecked(&sk->sk_drops, 0);
110700 }
110701 EXPORT_SYMBOL(sock_init_data);
110702
110703@@ -2503,6 +2504,7 @@ void sock_enable_timestamp(struct sock *sk, int flag)
110704 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
110705 int level, int type)
110706 {
110707+ struct sock_extended_err ee;
110708 struct sock_exterr_skb *serr;
110709 struct sk_buff *skb;
110710 int copied, err;
110711@@ -2524,7 +2526,8 @@ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
110712 sock_recv_timestamp(msg, sk, skb);
110713
110714 serr = SKB_EXT_ERR(skb);
110715- put_cmsg(msg, level, type, sizeof(serr->ee), &serr->ee);
110716+ ee = serr->ee;
110717+ put_cmsg(msg, level, type, sizeof ee, &ee);
110718
110719 msg->msg_flags |= MSG_ERRQUEUE;
110720 err = copied;
110721diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
110722index ad704c7..ca48aff 100644
110723--- a/net/core/sock_diag.c
110724+++ b/net/core/sock_diag.c
110725@@ -9,26 +9,33 @@
110726 #include <linux/inet_diag.h>
110727 #include <linux/sock_diag.h>
110728
110729-static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
110730+static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
110731 static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
110732 static DEFINE_MUTEX(sock_diag_table_mutex);
110733
110734 int sock_diag_check_cookie(void *sk, __u32 *cookie)
110735 {
110736+#ifndef CONFIG_GRKERNSEC_HIDESYM
110737 if ((cookie[0] != INET_DIAG_NOCOOKIE ||
110738 cookie[1] != INET_DIAG_NOCOOKIE) &&
110739 ((u32)(unsigned long)sk != cookie[0] ||
110740 (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
110741 return -ESTALE;
110742 else
110743+#endif
110744 return 0;
110745 }
110746 EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
110747
110748 void sock_diag_save_cookie(void *sk, __u32 *cookie)
110749 {
110750+#ifdef CONFIG_GRKERNSEC_HIDESYM
110751+ cookie[0] = 0;
110752+ cookie[1] = 0;
110753+#else
110754 cookie[0] = (u32)(unsigned long)sk;
110755 cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
110756+#endif
110757 }
110758 EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
110759
110760@@ -110,8 +117,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
110761 mutex_lock(&sock_diag_table_mutex);
110762 if (sock_diag_handlers[hndl->family])
110763 err = -EBUSY;
110764- else
110765+ else {
110766+ pax_open_kernel();
110767 sock_diag_handlers[hndl->family] = hndl;
110768+ pax_close_kernel();
110769+ }
110770 mutex_unlock(&sock_diag_table_mutex);
110771
110772 return err;
110773@@ -127,7 +137,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
110774
110775 mutex_lock(&sock_diag_table_mutex);
110776 BUG_ON(sock_diag_handlers[family] != hnld);
110777+ pax_open_kernel();
110778 sock_diag_handlers[family] = NULL;
110779+ pax_close_kernel();
110780 mutex_unlock(&sock_diag_table_mutex);
110781 }
110782 EXPORT_SYMBOL_GPL(sock_diag_unregister);
110783diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
110784index 8ce351f..2c388f7 100644
110785--- a/net/core/sysctl_net_core.c
110786+++ b/net/core/sysctl_net_core.c
110787@@ -36,7 +36,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
110788 {
110789 unsigned int orig_size, size;
110790 int ret, i;
110791- struct ctl_table tmp = {
110792+ ctl_table_no_const tmp = {
110793 .data = &size,
110794 .maxlen = sizeof(size),
110795 .mode = table->mode
110796@@ -204,7 +204,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
110797 void __user *buffer, size_t *lenp, loff_t *ppos)
110798 {
110799 char id[IFNAMSIZ];
110800- struct ctl_table tbl = {
110801+ ctl_table_no_const tbl = {
110802 .data = id,
110803 .maxlen = IFNAMSIZ,
110804 };
110805@@ -222,7 +222,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
110806 static int proc_do_rss_key(struct ctl_table *table, int write,
110807 void __user *buffer, size_t *lenp, loff_t *ppos)
110808 {
110809- struct ctl_table fake_table;
110810+ ctl_table_no_const fake_table;
110811 char buf[NETDEV_RSS_KEY_LEN * 3];
110812
110813 snprintf(buf, sizeof(buf), "%*phC", NETDEV_RSS_KEY_LEN, netdev_rss_key);
110814@@ -286,7 +286,7 @@ static struct ctl_table net_core_table[] = {
110815 .mode = 0444,
110816 .proc_handler = proc_do_rss_key,
110817 },
110818-#ifdef CONFIG_BPF_JIT
110819+#if defined(CONFIG_BPF_JIT) && !defined(CONFIG_GRKERNSEC_BPF_HARDEN)
110820 {
110821 .procname = "bpf_jit_enable",
110822 .data = &bpf_jit_enable,
110823@@ -411,13 +411,12 @@ static struct ctl_table netns_core_table[] = {
110824
110825 static __net_init int sysctl_core_net_init(struct net *net)
110826 {
110827- struct ctl_table *tbl;
110828+ ctl_table_no_const *tbl = NULL;
110829
110830 net->core.sysctl_somaxconn = SOMAXCONN;
110831
110832- tbl = netns_core_table;
110833 if (!net_eq(net, &init_net)) {
110834- tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
110835+ tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
110836 if (tbl == NULL)
110837 goto err_dup;
110838
110839@@ -427,17 +426,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
110840 if (net->user_ns != &init_user_ns) {
110841 tbl[0].procname = NULL;
110842 }
110843- }
110844-
110845- net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
110846+ net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
110847+ } else
110848+ net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
110849 if (net->core.sysctl_hdr == NULL)
110850 goto err_reg;
110851
110852 return 0;
110853
110854 err_reg:
110855- if (tbl != netns_core_table)
110856- kfree(tbl);
110857+ kfree(tbl);
110858 err_dup:
110859 return -ENOMEM;
110860 }
110861@@ -452,7 +450,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
110862 kfree(tbl);
110863 }
110864
110865-static __net_initdata struct pernet_operations sysctl_core_ops = {
110866+static __net_initconst struct pernet_operations sysctl_core_ops = {
110867 .init = sysctl_core_net_init,
110868 .exit = sysctl_core_net_exit,
110869 };
110870diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
110871index 8102286..a0c2755 100644
110872--- a/net/decnet/af_decnet.c
110873+++ b/net/decnet/af_decnet.c
110874@@ -466,6 +466,7 @@ static struct proto dn_proto = {
110875 .sysctl_rmem = sysctl_decnet_rmem,
110876 .max_header = DN_MAX_NSP_DATA_HEADER + 64,
110877 .obj_size = sizeof(struct dn_sock),
110878+ .slab_flags = SLAB_USERCOPY,
110879 };
110880
110881 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
110882diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
110883index b2c26b0..41f803e 100644
110884--- a/net/decnet/dn_dev.c
110885+++ b/net/decnet/dn_dev.c
110886@@ -201,7 +201,7 @@ static struct dn_dev_sysctl_table {
110887 .extra1 = &min_t3,
110888 .extra2 = &max_t3
110889 },
110890- {0}
110891+ { }
110892 },
110893 };
110894
110895diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
110896index 5325b54..a0d4d69 100644
110897--- a/net/decnet/sysctl_net_decnet.c
110898+++ b/net/decnet/sysctl_net_decnet.c
110899@@ -174,7 +174,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write,
110900
110901 if (len > *lenp) len = *lenp;
110902
110903- if (copy_to_user(buffer, addr, len))
110904+ if (len > sizeof addr || copy_to_user(buffer, addr, len))
110905 return -EFAULT;
110906
110907 *lenp = len;
110908@@ -237,7 +237,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write,
110909
110910 if (len > *lenp) len = *lenp;
110911
110912- if (copy_to_user(buffer, devname, len))
110913+ if (len > sizeof devname || copy_to_user(buffer, devname, len))
110914 return -EFAULT;
110915
110916 *lenp = len;
110917diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
110918index a2c7e4c..3dc9f67 100644
110919--- a/net/hsr/hsr_netlink.c
110920+++ b/net/hsr/hsr_netlink.c
110921@@ -102,7 +102,7 @@ nla_put_failure:
110922 return -EMSGSIZE;
110923 }
110924
110925-static struct rtnl_link_ops hsr_link_ops __read_mostly = {
110926+static struct rtnl_link_ops hsr_link_ops = {
110927 .kind = "hsr",
110928 .maxtype = IFLA_HSR_MAX,
110929 .policy = hsr_policy,
110930diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
110931index 055fbb7..c0dbe60 100644
110932--- a/net/ieee802154/6lowpan/core.c
110933+++ b/net/ieee802154/6lowpan/core.c
110934@@ -217,7 +217,7 @@ static void lowpan_dellink(struct net_device *dev, struct list_head *head)
110935 dev_put(real_dev);
110936 }
110937
110938-static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
110939+static struct rtnl_link_ops lowpan_link_ops = {
110940 .kind = "lowpan",
110941 .priv_size = sizeof(struct lowpan_dev_info),
110942 .setup = lowpan_setup,
110943diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
110944index f46e4d1..30231f1 100644
110945--- a/net/ieee802154/6lowpan/reassembly.c
110946+++ b/net/ieee802154/6lowpan/reassembly.c
110947@@ -435,14 +435,13 @@ static struct ctl_table lowpan_frags_ctl_table[] = {
110948
110949 static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
110950 {
110951- struct ctl_table *table;
110952+ ctl_table_no_const *table = NULL;
110953 struct ctl_table_header *hdr;
110954 struct netns_ieee802154_lowpan *ieee802154_lowpan =
110955 net_ieee802154_lowpan(net);
110956
110957- table = lowpan_frags_ns_ctl_table;
110958 if (!net_eq(net, &init_net)) {
110959- table = kmemdup(table, sizeof(lowpan_frags_ns_ctl_table),
110960+ table = kmemdup(lowpan_frags_ns_ctl_table, sizeof(lowpan_frags_ns_ctl_table),
110961 GFP_KERNEL);
110962 if (table == NULL)
110963 goto err_alloc;
110964@@ -457,9 +456,9 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
110965 /* Don't export sysctls to unprivileged users */
110966 if (net->user_ns != &init_user_ns)
110967 table[0].procname = NULL;
110968- }
110969-
110970- hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
110971+ hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
110972+ } else
110973+ hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", lowpan_frags_ns_ctl_table);
110974 if (hdr == NULL)
110975 goto err_reg;
110976
110977@@ -467,8 +466,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
110978 return 0;
110979
110980 err_reg:
110981- if (!net_eq(net, &init_net))
110982- kfree(table);
110983+ kfree(table);
110984 err_alloc:
110985 return -ENOMEM;
110986 }
110987diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
110988index d2e49ba..f78e8aa 100644
110989--- a/net/ipv4/af_inet.c
110990+++ b/net/ipv4/af_inet.c
110991@@ -1390,7 +1390,7 @@ int inet_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
110992 return ip_recv_error(sk, msg, len, addr_len);
110993 #if IS_ENABLED(CONFIG_IPV6)
110994 if (sk->sk_family == AF_INET6)
110995- return pingv6_ops.ipv6_recv_error(sk, msg, len, addr_len);
110996+ return pingv6_ops->ipv6_recv_error(sk, msg, len, addr_len);
110997 #endif
110998 return -EINVAL;
110999 }
111000diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
111001index 3a8985c..9d2a870 100644
111002--- a/net/ipv4/devinet.c
111003+++ b/net/ipv4/devinet.c
111004@@ -69,7 +69,8 @@
111005
111006 static struct ipv4_devconf ipv4_devconf = {
111007 .data = {
111008- [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
111009+ [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
111010+ [IPV4_DEVCONF_RP_FILTER - 1] = 1,
111011 [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
111012 [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
111013 [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
111014@@ -80,7 +81,8 @@ static struct ipv4_devconf ipv4_devconf = {
111015
111016 static struct ipv4_devconf ipv4_devconf_dflt = {
111017 .data = {
111018- [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
111019+ [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
111020+ [IPV4_DEVCONF_RP_FILTER - 1] = 1,
111021 [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
111022 [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
111023 [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
111024@@ -1549,7 +1551,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
111025 idx = 0;
111026 head = &net->dev_index_head[h];
111027 rcu_read_lock();
111028- cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
111029+ cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
111030 net->dev_base_seq;
111031 hlist_for_each_entry_rcu(dev, head, index_hlist) {
111032 if (idx < s_idx)
111033@@ -1868,7 +1870,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
111034 idx = 0;
111035 head = &net->dev_index_head[h];
111036 rcu_read_lock();
111037- cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
111038+ cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
111039 net->dev_base_seq;
111040 hlist_for_each_entry_rcu(dev, head, index_hlist) {
111041 if (idx < s_idx)
111042@@ -2103,7 +2105,7 @@ static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
111043 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
111044 DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
111045
111046-static struct devinet_sysctl_table {
111047+static const struct devinet_sysctl_table {
111048 struct ctl_table_header *sysctl_header;
111049 struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
111050 } devinet_sysctl = {
111051@@ -2235,7 +2237,7 @@ static __net_init int devinet_init_net(struct net *net)
111052 int err;
111053 struct ipv4_devconf *all, *dflt;
111054 #ifdef CONFIG_SYSCTL
111055- struct ctl_table *tbl = ctl_forward_entry;
111056+ ctl_table_no_const *tbl = NULL;
111057 struct ctl_table_header *forw_hdr;
111058 #endif
111059
111060@@ -2253,7 +2255,7 @@ static __net_init int devinet_init_net(struct net *net)
111061 goto err_alloc_dflt;
111062
111063 #ifdef CONFIG_SYSCTL
111064- tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
111065+ tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
111066 if (tbl == NULL)
111067 goto err_alloc_ctl;
111068
111069@@ -2273,7 +2275,10 @@ static __net_init int devinet_init_net(struct net *net)
111070 goto err_reg_dflt;
111071
111072 err = -ENOMEM;
111073- forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
111074+ if (!net_eq(net, &init_net))
111075+ forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
111076+ else
111077+ forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
111078 if (forw_hdr == NULL)
111079 goto err_reg_ctl;
111080 net->ipv4.forw_hdr = forw_hdr;
111081@@ -2289,8 +2294,7 @@ err_reg_ctl:
111082 err_reg_dflt:
111083 __devinet_sysctl_unregister(all);
111084 err_reg_all:
111085- if (tbl != ctl_forward_entry)
111086- kfree(tbl);
111087+ kfree(tbl);
111088 err_alloc_ctl:
111089 #endif
111090 if (dflt != &ipv4_devconf_dflt)
111091diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
111092index 23b9b3e..60cf0c4 100644
111093--- a/net/ipv4/fib_frontend.c
111094+++ b/net/ipv4/fib_frontend.c
111095@@ -1020,12 +1020,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
111096 #ifdef CONFIG_IP_ROUTE_MULTIPATH
111097 fib_sync_up(dev);
111098 #endif
111099- atomic_inc(&net->ipv4.dev_addr_genid);
111100+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111101 rt_cache_flush(dev_net(dev));
111102 break;
111103 case NETDEV_DOWN:
111104 fib_del_ifaddr(ifa, NULL);
111105- atomic_inc(&net->ipv4.dev_addr_genid);
111106+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111107 if (ifa->ifa_dev->ifa_list == NULL) {
111108 /* Last address was deleted from this interface.
111109 * Disable IP.
111110@@ -1063,7 +1063,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
111111 #ifdef CONFIG_IP_ROUTE_MULTIPATH
111112 fib_sync_up(dev);
111113 #endif
111114- atomic_inc(&net->ipv4.dev_addr_genid);
111115+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111116 rt_cache_flush(net);
111117 break;
111118 case NETDEV_DOWN:
111119diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
111120index 1e2090e..351a724 100644
111121--- a/net/ipv4/fib_semantics.c
111122+++ b/net/ipv4/fib_semantics.c
111123@@ -753,7 +753,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
111124 nh->nh_saddr = inet_select_addr(nh->nh_dev,
111125 nh->nh_gw,
111126 nh->nh_parent->fib_scope);
111127- nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
111128+ nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
111129
111130 return nh->nh_saddr;
111131 }
111132diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
111133index ff069f6..335e752 100644
111134--- a/net/ipv4/fou.c
111135+++ b/net/ipv4/fou.c
111136@@ -771,12 +771,12 @@ EXPORT_SYMBOL(gue_build_header);
111137
111138 #ifdef CONFIG_NET_FOU_IP_TUNNELS
111139
111140-static const struct ip_tunnel_encap_ops __read_mostly fou_iptun_ops = {
111141+static const struct ip_tunnel_encap_ops fou_iptun_ops = {
111142 .encap_hlen = fou_encap_hlen,
111143 .build_header = fou_build_header,
111144 };
111145
111146-static const struct ip_tunnel_encap_ops __read_mostly gue_iptun_ops = {
111147+static const struct ip_tunnel_encap_ops gue_iptun_ops = {
111148 .encap_hlen = gue_encap_hlen,
111149 .build_header = gue_build_header,
111150 };
111151diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
111152index 9111a4e..3576905 100644
111153--- a/net/ipv4/inet_hashtables.c
111154+++ b/net/ipv4/inet_hashtables.c
111155@@ -18,6 +18,7 @@
111156 #include <linux/sched.h>
111157 #include <linux/slab.h>
111158 #include <linux/wait.h>
111159+#include <linux/security.h>
111160
111161 #include <net/inet_connection_sock.h>
111162 #include <net/inet_hashtables.h>
111163@@ -49,6 +50,8 @@ static unsigned int inet_sk_ehashfn(const struct sock *sk)
111164 return inet_ehashfn(net, laddr, lport, faddr, fport);
111165 }
111166
111167+extern void gr_update_task_in_ip_table(const struct inet_sock *inet);
111168+
111169 /*
111170 * Allocate and initialize a new local port bind bucket.
111171 * The bindhash mutex for snum's hash chain must be held here.
111172@@ -554,6 +557,8 @@ ok:
111173 twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
111174 spin_unlock(&head->lock);
111175
111176+ gr_update_task_in_ip_table(inet_sk(sk));
111177+
111178 if (tw) {
111179 inet_twsk_deschedule(tw, death_row);
111180 while (twrefcnt) {
111181diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
111182index 241afd7..31b95d5 100644
111183--- a/net/ipv4/inetpeer.c
111184+++ b/net/ipv4/inetpeer.c
111185@@ -461,7 +461,7 @@ relookup:
111186 if (p) {
111187 p->daddr = *daddr;
111188 atomic_set(&p->refcnt, 1);
111189- atomic_set(&p->rid, 0);
111190+ atomic_set_unchecked(&p->rid, 0);
111191 p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
111192 p->rate_tokens = 0;
111193 /* 60*HZ is arbitrary, but chosen enough high so that the first
111194diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
111195index 145a50c..5dd8cc5 100644
111196--- a/net/ipv4/ip_fragment.c
111197+++ b/net/ipv4/ip_fragment.c
111198@@ -268,7 +268,7 @@ static int ip_frag_too_far(struct ipq *qp)
111199 return 0;
111200
111201 start = qp->rid;
111202- end = atomic_inc_return(&peer->rid);
111203+ end = atomic_inc_return_unchecked(&peer->rid);
111204 qp->rid = end;
111205
111206 rc = qp->q.fragments && (end - start) > max;
111207@@ -748,12 +748,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
111208
111209 static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111210 {
111211- struct ctl_table *table;
111212+ ctl_table_no_const *table = NULL;
111213 struct ctl_table_header *hdr;
111214
111215- table = ip4_frags_ns_ctl_table;
111216 if (!net_eq(net, &init_net)) {
111217- table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
111218+ table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
111219 if (table == NULL)
111220 goto err_alloc;
111221
111222@@ -767,9 +766,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111223 /* Don't export sysctls to unprivileged users */
111224 if (net->user_ns != &init_user_ns)
111225 table[0].procname = NULL;
111226- }
111227+ hdr = register_net_sysctl(net, "net/ipv4", table);
111228+ } else
111229+ hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
111230
111231- hdr = register_net_sysctl(net, "net/ipv4", table);
111232 if (hdr == NULL)
111233 goto err_reg;
111234
111235@@ -777,8 +777,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111236 return 0;
111237
111238 err_reg:
111239- if (!net_eq(net, &init_net))
111240- kfree(table);
111241+ kfree(table);
111242 err_alloc:
111243 return -ENOMEM;
111244 }
111245diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
111246index 6207275f..00323a2 100644
111247--- a/net/ipv4/ip_gre.c
111248+++ b/net/ipv4/ip_gre.c
111249@@ -115,7 +115,7 @@ static bool log_ecn_error = true;
111250 module_param(log_ecn_error, bool, 0644);
111251 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
111252
111253-static struct rtnl_link_ops ipgre_link_ops __read_mostly;
111254+static struct rtnl_link_ops ipgre_link_ops;
111255 static int ipgre_tunnel_init(struct net_device *dev);
111256
111257 static int ipgre_net_id __read_mostly;
111258@@ -817,7 +817,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
111259 [IFLA_GRE_ENCAP_DPORT] = { .type = NLA_U16 },
111260 };
111261
111262-static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
111263+static struct rtnl_link_ops ipgre_link_ops = {
111264 .kind = "gre",
111265 .maxtype = IFLA_GRE_MAX,
111266 .policy = ipgre_policy,
111267@@ -832,7 +832,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
111268 .get_link_net = ip_tunnel_get_link_net,
111269 };
111270
111271-static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
111272+static struct rtnl_link_ops ipgre_tap_ops = {
111273 .kind = "gretap",
111274 .maxtype = IFLA_GRE_MAX,
111275 .policy = ipgre_policy,
111276diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
111277index 3d4da2c..40f9c29 100644
111278--- a/net/ipv4/ip_input.c
111279+++ b/net/ipv4/ip_input.c
111280@@ -147,6 +147,10 @@
111281 #include <linux/mroute.h>
111282 #include <linux/netlink.h>
111283
111284+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111285+extern int grsec_enable_blackhole;
111286+#endif
111287+
111288 /*
111289 * Process Router Attention IP option (RFC 2113)
111290 */
111291@@ -223,6 +227,9 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
111292 if (!raw) {
111293 if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
111294 IP_INC_STATS_BH(net, IPSTATS_MIB_INUNKNOWNPROTOS);
111295+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111296+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
111297+#endif
111298 icmp_send(skb, ICMP_DEST_UNREACH,
111299 ICMP_PROT_UNREACH, 0);
111300 }
111301diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
111302index 5cd9927..8610b9f 100644
111303--- a/net/ipv4/ip_sockglue.c
111304+++ b/net/ipv4/ip_sockglue.c
111305@@ -1254,7 +1254,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
111306 len = min_t(unsigned int, len, opt->optlen);
111307 if (put_user(len, optlen))
111308 return -EFAULT;
111309- if (copy_to_user(optval, opt->__data, len))
111310+ if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
111311+ copy_to_user(optval, opt->__data, len))
111312 return -EFAULT;
111313 return 0;
111314 }
111315@@ -1388,7 +1389,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
111316 if (sk->sk_type != SOCK_STREAM)
111317 return -ENOPROTOOPT;
111318
111319- msg.msg_control = (__force void *) optval;
111320+ msg.msg_control = (__force_kernel void *) optval;
111321 msg.msg_controllen = len;
111322 msg.msg_flags = flags;
111323
111324diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
111325index 94efe14..1453fcc 100644
111326--- a/net/ipv4/ip_vti.c
111327+++ b/net/ipv4/ip_vti.c
111328@@ -45,7 +45,7 @@
111329 #include <net/net_namespace.h>
111330 #include <net/netns/generic.h>
111331
111332-static struct rtnl_link_ops vti_link_ops __read_mostly;
111333+static struct rtnl_link_ops vti_link_ops;
111334
111335 static int vti_net_id __read_mostly;
111336 static int vti_tunnel_init(struct net_device *dev);
111337@@ -519,7 +519,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
111338 [IFLA_VTI_REMOTE] = { .len = FIELD_SIZEOF(struct iphdr, daddr) },
111339 };
111340
111341-static struct rtnl_link_ops vti_link_ops __read_mostly = {
111342+static struct rtnl_link_ops vti_link_ops = {
111343 .kind = "vti",
111344 .maxtype = IFLA_VTI_MAX,
111345 .policy = vti_policy,
111346diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
111347index b26376e..fc3d733 100644
111348--- a/net/ipv4/ipconfig.c
111349+++ b/net/ipv4/ipconfig.c
111350@@ -333,7 +333,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
111351
111352 mm_segment_t oldfs = get_fs();
111353 set_fs(get_ds());
111354- res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
111355+ res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
111356 set_fs(oldfs);
111357 return res;
111358 }
111359@@ -344,7 +344,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
111360
111361 mm_segment_t oldfs = get_fs();
111362 set_fs(get_ds());
111363- res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
111364+ res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
111365 set_fs(oldfs);
111366 return res;
111367 }
111368@@ -355,7 +355,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
111369
111370 mm_segment_t oldfs = get_fs();
111371 set_fs(get_ds());
111372- res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
111373+ res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
111374 set_fs(oldfs);
111375 return res;
111376 }
111377diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
111378index 915d215..48d1db7 100644
111379--- a/net/ipv4/ipip.c
111380+++ b/net/ipv4/ipip.c
111381@@ -124,7 +124,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
111382 static int ipip_net_id __read_mostly;
111383
111384 static int ipip_tunnel_init(struct net_device *dev);
111385-static struct rtnl_link_ops ipip_link_ops __read_mostly;
111386+static struct rtnl_link_ops ipip_link_ops;
111387
111388 static int ipip_err(struct sk_buff *skb, u32 info)
111389 {
111390@@ -487,7 +487,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
111391 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NLA_U16 },
111392 };
111393
111394-static struct rtnl_link_ops ipip_link_ops __read_mostly = {
111395+static struct rtnl_link_ops ipip_link_ops = {
111396 .kind = "ipip",
111397 .maxtype = IFLA_IPTUN_MAX,
111398 .policy = ipip_policy,
111399diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
111400index f95b6f9..2ee2097 100644
111401--- a/net/ipv4/netfilter/arp_tables.c
111402+++ b/net/ipv4/netfilter/arp_tables.c
111403@@ -885,14 +885,14 @@ static int compat_table_info(const struct xt_table_info *info,
111404 #endif
111405
111406 static int get_info(struct net *net, void __user *user,
111407- const int *len, int compat)
111408+ int len, int compat)
111409 {
111410 char name[XT_TABLE_MAXNAMELEN];
111411 struct xt_table *t;
111412 int ret;
111413
111414- if (*len != sizeof(struct arpt_getinfo)) {
111415- duprintf("length %u != %Zu\n", *len,
111416+ if (len != sizeof(struct arpt_getinfo)) {
111417+ duprintf("length %u != %Zu\n", len,
111418 sizeof(struct arpt_getinfo));
111419 return -EINVAL;
111420 }
111421@@ -929,7 +929,7 @@ static int get_info(struct net *net, void __user *user,
111422 info.size = private->size;
111423 strcpy(info.name, name);
111424
111425- if (copy_to_user(user, &info, *len) != 0)
111426+ if (copy_to_user(user, &info, len) != 0)
111427 ret = -EFAULT;
111428 else
111429 ret = 0;
111430@@ -1690,7 +1690,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
111431
111432 switch (cmd) {
111433 case ARPT_SO_GET_INFO:
111434- ret = get_info(sock_net(sk), user, len, 1);
111435+ ret = get_info(sock_net(sk), user, *len, 1);
111436 break;
111437 case ARPT_SO_GET_ENTRIES:
111438 ret = compat_get_entries(sock_net(sk), user, len);
111439@@ -1735,7 +1735,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
111440
111441 switch (cmd) {
111442 case ARPT_SO_GET_INFO:
111443- ret = get_info(sock_net(sk), user, len, 0);
111444+ ret = get_info(sock_net(sk), user, *len, 0);
111445 break;
111446
111447 case ARPT_SO_GET_ENTRIES:
111448diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
111449index cf5e82f..75a20f5 100644
111450--- a/net/ipv4/netfilter/ip_tables.c
111451+++ b/net/ipv4/netfilter/ip_tables.c
111452@@ -1073,14 +1073,14 @@ static int compat_table_info(const struct xt_table_info *info,
111453 #endif
111454
111455 static int get_info(struct net *net, void __user *user,
111456- const int *len, int compat)
111457+ int len, int compat)
111458 {
111459 char name[XT_TABLE_MAXNAMELEN];
111460 struct xt_table *t;
111461 int ret;
111462
111463- if (*len != sizeof(struct ipt_getinfo)) {
111464- duprintf("length %u != %zu\n", *len,
111465+ if (len != sizeof(struct ipt_getinfo)) {
111466+ duprintf("length %u != %zu\n", len,
111467 sizeof(struct ipt_getinfo));
111468 return -EINVAL;
111469 }
111470@@ -1117,7 +1117,7 @@ static int get_info(struct net *net, void __user *user,
111471 info.size = private->size;
111472 strcpy(info.name, name);
111473
111474- if (copy_to_user(user, &info, *len) != 0)
111475+ if (copy_to_user(user, &info, len) != 0)
111476 ret = -EFAULT;
111477 else
111478 ret = 0;
111479@@ -1973,7 +1973,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
111480
111481 switch (cmd) {
111482 case IPT_SO_GET_INFO:
111483- ret = get_info(sock_net(sk), user, len, 1);
111484+ ret = get_info(sock_net(sk), user, *len, 1);
111485 break;
111486 case IPT_SO_GET_ENTRIES:
111487 ret = compat_get_entries(sock_net(sk), user, len);
111488@@ -2020,7 +2020,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
111489
111490 switch (cmd) {
111491 case IPT_SO_GET_INFO:
111492- ret = get_info(sock_net(sk), user, len, 0);
111493+ ret = get_info(sock_net(sk), user, *len, 0);
111494 break;
111495
111496 case IPT_SO_GET_ENTRIES:
111497diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
111498index e90f83a..3e6acca 100644
111499--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
111500+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
111501@@ -720,7 +720,7 @@ static int clusterip_net_init(struct net *net)
111502 spin_lock_init(&cn->lock);
111503
111504 #ifdef CONFIG_PROC_FS
111505- cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
111506+ cn->procdir = proc_mkdir_restrict("ipt_CLUSTERIP", net->proc_net);
111507 if (!cn->procdir) {
111508 pr_err("Unable to proc dir entry\n");
111509 return -ENOMEM;
111510diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
111511index 787b0d6..ab6c0ba 100644
111512--- a/net/ipv4/ping.c
111513+++ b/net/ipv4/ping.c
111514@@ -59,7 +59,7 @@ struct ping_table {
111515 };
111516
111517 static struct ping_table ping_table;
111518-struct pingv6_ops pingv6_ops;
111519+struct pingv6_ops *pingv6_ops;
111520 EXPORT_SYMBOL_GPL(pingv6_ops);
111521
111522 static u16 ping_port_rover;
111523@@ -359,7 +359,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
111524 return -ENODEV;
111525 }
111526 }
111527- has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
111528+ has_addr = pingv6_ops->ipv6_chk_addr(net, &addr->sin6_addr, dev,
111529 scoped);
111530 rcu_read_unlock();
111531
111532@@ -567,7 +567,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
111533 }
111534 #if IS_ENABLED(CONFIG_IPV6)
111535 } else if (skb->protocol == htons(ETH_P_IPV6)) {
111536- harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
111537+ harderr = pingv6_ops->icmpv6_err_convert(type, code, &err);
111538 #endif
111539 }
111540
111541@@ -585,7 +585,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
111542 info, (u8 *)icmph);
111543 #if IS_ENABLED(CONFIG_IPV6)
111544 } else if (family == AF_INET6) {
111545- pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
111546+ pingv6_ops->ipv6_icmp_error(sk, skb, err, 0,
111547 info, (u8 *)icmph);
111548 #endif
111549 }
111550@@ -919,10 +919,10 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
111551 }
111552
111553 if (inet6_sk(sk)->rxopt.all)
111554- pingv6_ops.ip6_datagram_recv_common_ctl(sk, msg, skb);
111555+ pingv6_ops->ip6_datagram_recv_common_ctl(sk, msg, skb);
111556 if (skb->protocol == htons(ETH_P_IPV6) &&
111557 inet6_sk(sk)->rxopt.all)
111558- pingv6_ops.ip6_datagram_recv_specific_ctl(sk, msg, skb);
111559+ pingv6_ops->ip6_datagram_recv_specific_ctl(sk, msg, skb);
111560 else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
111561 ip_cmsg_recv(msg, skb);
111562 #endif
111563@@ -1117,7 +1117,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
111564 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
111565 0, sock_i_ino(sp),
111566 atomic_read(&sp->sk_refcnt), sp,
111567- atomic_read(&sp->sk_drops));
111568+ atomic_read_unchecked(&sp->sk_drops));
111569 }
111570
111571 static int ping_v4_seq_show(struct seq_file *seq, void *v)
111572diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
111573index f027a70..2e64edc 100644
111574--- a/net/ipv4/raw.c
111575+++ b/net/ipv4/raw.c
111576@@ -324,7 +324,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
111577 int raw_rcv(struct sock *sk, struct sk_buff *skb)
111578 {
111579 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
111580- atomic_inc(&sk->sk_drops);
111581+ atomic_inc_unchecked(&sk->sk_drops);
111582 kfree_skb(skb);
111583 return NET_RX_DROP;
111584 }
111585@@ -773,16 +773,20 @@ static int raw_init(struct sock *sk)
111586
111587 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
111588 {
111589+ struct icmp_filter filter;
111590+
111591 if (optlen > sizeof(struct icmp_filter))
111592 optlen = sizeof(struct icmp_filter);
111593- if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
111594+ if (copy_from_user(&filter, optval, optlen))
111595 return -EFAULT;
111596+ raw_sk(sk)->filter = filter;
111597 return 0;
111598 }
111599
111600 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
111601 {
111602 int len, ret = -EFAULT;
111603+ struct icmp_filter filter;
111604
111605 if (get_user(len, optlen))
111606 goto out;
111607@@ -792,8 +796,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
111608 if (len > sizeof(struct icmp_filter))
111609 len = sizeof(struct icmp_filter);
111610 ret = -EFAULT;
111611- if (put_user(len, optlen) ||
111612- copy_to_user(optval, &raw_sk(sk)->filter, len))
111613+ filter = raw_sk(sk)->filter;
111614+ if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
111615 goto out;
111616 ret = 0;
111617 out: return ret;
111618@@ -1022,7 +1026,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
111619 0, 0L, 0,
111620 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
111621 0, sock_i_ino(sp),
111622- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
111623+ atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
111624 }
111625
111626 static int raw_seq_show(struct seq_file *seq, void *v)
111627diff --git a/net/ipv4/route.c b/net/ipv4/route.c
111628index 20fc020..3ba426f 100644
111629--- a/net/ipv4/route.c
111630+++ b/net/ipv4/route.c
111631@@ -228,7 +228,7 @@ static const struct seq_operations rt_cache_seq_ops = {
111632
111633 static int rt_cache_seq_open(struct inode *inode, struct file *file)
111634 {
111635- return seq_open(file, &rt_cache_seq_ops);
111636+ return seq_open_restrict(file, &rt_cache_seq_ops);
111637 }
111638
111639 static const struct file_operations rt_cache_seq_fops = {
111640@@ -319,7 +319,7 @@ static const struct seq_operations rt_cpu_seq_ops = {
111641
111642 static int rt_cpu_seq_open(struct inode *inode, struct file *file)
111643 {
111644- return seq_open(file, &rt_cpu_seq_ops);
111645+ return seq_open_restrict(file, &rt_cpu_seq_ops);
111646 }
111647
111648 static const struct file_operations rt_cpu_seq_fops = {
111649@@ -357,7 +357,7 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
111650
111651 static int rt_acct_proc_open(struct inode *inode, struct file *file)
111652 {
111653- return single_open(file, rt_acct_proc_show, NULL);
111654+ return single_open_restrict(file, rt_acct_proc_show, NULL);
111655 }
111656
111657 static const struct file_operations rt_acct_proc_fops = {
111658@@ -459,11 +459,11 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
111659
111660 #define IP_IDENTS_SZ 2048u
111661 struct ip_ident_bucket {
111662- atomic_t id;
111663+ atomic_unchecked_t id;
111664 u32 stamp32;
111665 };
111666
111667-static struct ip_ident_bucket *ip_idents __read_mostly;
111668+static struct ip_ident_bucket ip_idents[IP_IDENTS_SZ] __read_mostly;
111669
111670 /* In order to protect privacy, we add a perturbation to identifiers
111671 * if one generator is seldom used. This makes hard for an attacker
111672@@ -479,7 +479,7 @@ u32 ip_idents_reserve(u32 hash, int segs)
111673 if (old != now && cmpxchg(&bucket->stamp32, old, now) == old)
111674 delta = prandom_u32_max(now - old);
111675
111676- return atomic_add_return(segs + delta, &bucket->id) - segs;
111677+ return atomic_add_return_unchecked(segs + delta, &bucket->id) - segs;
111678 }
111679 EXPORT_SYMBOL(ip_idents_reserve);
111680
111681@@ -2639,34 +2639,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
111682 .maxlen = sizeof(int),
111683 .mode = 0200,
111684 .proc_handler = ipv4_sysctl_rtcache_flush,
111685+ .extra1 = &init_net,
111686 },
111687 { },
111688 };
111689
111690 static __net_init int sysctl_route_net_init(struct net *net)
111691 {
111692- struct ctl_table *tbl;
111693+ ctl_table_no_const *tbl = NULL;
111694
111695- tbl = ipv4_route_flush_table;
111696 if (!net_eq(net, &init_net)) {
111697- tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
111698+ tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
111699 if (tbl == NULL)
111700 goto err_dup;
111701
111702 /* Don't export sysctls to unprivileged users */
111703 if (net->user_ns != &init_user_ns)
111704 tbl[0].procname = NULL;
111705- }
111706- tbl[0].extra1 = net;
111707+ tbl[0].extra1 = net;
111708+ net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
111709+ } else
111710+ net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
111711
111712- net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
111713 if (net->ipv4.route_hdr == NULL)
111714 goto err_reg;
111715 return 0;
111716
111717 err_reg:
111718- if (tbl != ipv4_route_flush_table)
111719- kfree(tbl);
111720+ kfree(tbl);
111721 err_dup:
111722 return -ENOMEM;
111723 }
111724@@ -2689,8 +2689,8 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
111725
111726 static __net_init int rt_genid_init(struct net *net)
111727 {
111728- atomic_set(&net->ipv4.rt_genid, 0);
111729- atomic_set(&net->fnhe_genid, 0);
111730+ atomic_set_unchecked(&net->ipv4.rt_genid, 0);
111731+ atomic_set_unchecked(&net->fnhe_genid, 0);
111732 get_random_bytes(&net->ipv4.dev_addr_genid,
111733 sizeof(net->ipv4.dev_addr_genid));
111734 return 0;
111735@@ -2734,11 +2734,7 @@ int __init ip_rt_init(void)
111736 int rc = 0;
111737 int cpu;
111738
111739- ip_idents = kmalloc(IP_IDENTS_SZ * sizeof(*ip_idents), GFP_KERNEL);
111740- if (!ip_idents)
111741- panic("IP: failed to allocate ip_idents\n");
111742-
111743- prandom_bytes(ip_idents, IP_IDENTS_SZ * sizeof(*ip_idents));
111744+ prandom_bytes(ip_idents, sizeof(ip_idents));
111745
111746 for_each_possible_cpu(cpu) {
111747 struct uncached_list *ul = &per_cpu(rt_uncached_list, cpu);
111748diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
111749index d151539..5f5e247 100644
111750--- a/net/ipv4/sysctl_net_ipv4.c
111751+++ b/net/ipv4/sysctl_net_ipv4.c
111752@@ -60,7 +60,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
111753 container_of(table->data, struct net, ipv4.ip_local_ports.range);
111754 int ret;
111755 int range[2];
111756- struct ctl_table tmp = {
111757+ ctl_table_no_const tmp = {
111758 .data = &range,
111759 .maxlen = sizeof(range),
111760 .mode = table->mode,
111761@@ -118,7 +118,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write,
111762 int ret;
111763 gid_t urange[2];
111764 kgid_t low, high;
111765- struct ctl_table tmp = {
111766+ ctl_table_no_const tmp = {
111767 .data = &urange,
111768 .maxlen = sizeof(urange),
111769 .mode = table->mode,
111770@@ -149,7 +149,7 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
111771 void __user *buffer, size_t *lenp, loff_t *ppos)
111772 {
111773 char val[TCP_CA_NAME_MAX];
111774- struct ctl_table tbl = {
111775+ ctl_table_no_const tbl = {
111776 .data = val,
111777 .maxlen = TCP_CA_NAME_MAX,
111778 };
111779@@ -168,7 +168,7 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
111780 void __user *buffer, size_t *lenp,
111781 loff_t *ppos)
111782 {
111783- struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
111784+ ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
111785 int ret;
111786
111787 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
111788@@ -185,7 +185,7 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
111789 void __user *buffer, size_t *lenp,
111790 loff_t *ppos)
111791 {
111792- struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
111793+ ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
111794 int ret;
111795
111796 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
111797@@ -204,7 +204,7 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
111798 void __user *buffer, size_t *lenp,
111799 loff_t *ppos)
111800 {
111801- struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
111802+ ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
111803 struct tcp_fastopen_context *ctxt;
111804 int ret;
111805 u32 user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
111806@@ -888,13 +888,12 @@ static struct ctl_table ipv4_net_table[] = {
111807
111808 static __net_init int ipv4_sysctl_init_net(struct net *net)
111809 {
111810- struct ctl_table *table;
111811+ ctl_table_no_const *table = NULL;
111812
111813- table = ipv4_net_table;
111814 if (!net_eq(net, &init_net)) {
111815 int i;
111816
111817- table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
111818+ table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
111819 if (table == NULL)
111820 goto err_alloc;
111821
111822@@ -903,7 +902,10 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
111823 table[i].data += (void *)net - (void *)&init_net;
111824 }
111825
111826- net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
111827+ if (!net_eq(net, &init_net))
111828+ net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
111829+ else
111830+ net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
111831 if (net->ipv4.ipv4_hdr == NULL)
111832 goto err_reg;
111833
111834diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
111835index 995a225..e1e9183 100644
111836--- a/net/ipv4/tcp.c
111837+++ b/net/ipv4/tcp.c
111838@@ -520,8 +520,10 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
111839
111840 /* Race breaker. If space is freed after
111841 * wspace test but before the flags are set,
111842- * IO signal will be lost.
111843+ * IO signal will be lost. Memory barrier
111844+ * pairs with the input side.
111845 */
111846+ smp_mb__after_atomic();
111847 if (sk_stream_is_writeable(sk))
111848 mask |= POLLOUT | POLLWRNORM;
111849 }
111850diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
111851index f501ac04..0c5a1b2 100644
111852--- a/net/ipv4/tcp_input.c
111853+++ b/net/ipv4/tcp_input.c
111854@@ -767,7 +767,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
111855 * without any lock. We want to make sure compiler wont store
111856 * intermediate values in this location.
111857 */
111858- ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
111859+ ACCESS_ONCE_RW(sk->sk_pacing_rate) = min_t(u64, rate,
111860 sk->sk_max_pacing_rate);
111861 }
111862
111863@@ -4541,7 +4541,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
111864 * simplifies code)
111865 */
111866 static void
111867-tcp_collapse(struct sock *sk, struct sk_buff_head *list,
111868+__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
111869 struct sk_buff *head, struct sk_buff *tail,
111870 u32 start, u32 end)
111871 {
111872@@ -4799,6 +4799,8 @@ static void tcp_check_space(struct sock *sk)
111873 {
111874 if (sock_flag(sk, SOCK_QUEUE_SHRUNK)) {
111875 sock_reset_flag(sk, SOCK_QUEUE_SHRUNK);
111876+ /* pairs with tcp_poll() */
111877+ smp_mb__after_atomic();
111878 if (sk->sk_socket &&
111879 test_bit(SOCK_NOSPACE, &sk->sk_socket->flags))
111880 tcp_new_space(sk);
111881@@ -5525,6 +5527,7 @@ discard:
111882 tcp_paws_reject(&tp->rx_opt, 0))
111883 goto discard_and_undo;
111884
111885+#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
111886 if (th->syn) {
111887 /* We see SYN without ACK. It is attempt of
111888 * simultaneous connect with crossed SYNs.
111889@@ -5575,6 +5578,7 @@ discard:
111890 goto discard;
111891 #endif
111892 }
111893+#endif
111894 /* "fifth, if neither of the SYN or RST bits is set then
111895 * drop the segment and return."
111896 */
111897@@ -5621,7 +5625,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
111898 goto discard;
111899
111900 if (th->syn) {
111901- if (th->fin)
111902+ if (th->fin || th->urg || th->psh)
111903 goto discard;
111904 if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
111905 return 1;
111906diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
111907index f1756ee..8908cb0 100644
111908--- a/net/ipv4/tcp_ipv4.c
111909+++ b/net/ipv4/tcp_ipv4.c
111910@@ -89,6 +89,10 @@ int sysctl_tcp_tw_reuse __read_mostly;
111911 int sysctl_tcp_low_latency __read_mostly;
111912 EXPORT_SYMBOL(sysctl_tcp_low_latency);
111913
111914+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111915+extern int grsec_enable_blackhole;
111916+#endif
111917+
111918 #ifdef CONFIG_TCP_MD5SIG
111919 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
111920 __be32 daddr, __be32 saddr, const struct tcphdr *th);
111921@@ -1475,6 +1479,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
111922 return 0;
111923
111924 reset:
111925+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111926+ if (!grsec_enable_blackhole)
111927+#endif
111928 tcp_v4_send_reset(rsk, skb);
111929 discard:
111930 kfree_skb(skb);
111931@@ -1639,12 +1646,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
111932 TCP_SKB_CB(skb)->sacked = 0;
111933
111934 sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
111935- if (!sk)
111936+ if (!sk) {
111937+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111938+ ret = 1;
111939+#endif
111940 goto no_tcp_socket;
111941-
111942+ }
111943 process:
111944- if (sk->sk_state == TCP_TIME_WAIT)
111945+ if (sk->sk_state == TCP_TIME_WAIT) {
111946+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111947+ ret = 2;
111948+#endif
111949 goto do_time_wait;
111950+ }
111951
111952 if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
111953 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
111954@@ -1700,6 +1714,10 @@ csum_error:
111955 bad_packet:
111956 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
111957 } else {
111958+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111959+ if (!grsec_enable_blackhole || (ret == 1 &&
111960+ (skb->dev->flags & IFF_LOOPBACK)))
111961+#endif
111962 tcp_v4_send_reset(NULL, skb);
111963 }
111964
111965diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
111966index dd11ac7..c0872da 100644
111967--- a/net/ipv4/tcp_minisocks.c
111968+++ b/net/ipv4/tcp_minisocks.c
111969@@ -27,6 +27,10 @@
111970 #include <net/inet_common.h>
111971 #include <net/xfrm.h>
111972
111973+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111974+extern int grsec_enable_blackhole;
111975+#endif
111976+
111977 int sysctl_tcp_syncookies __read_mostly = 1;
111978 EXPORT_SYMBOL(sysctl_tcp_syncookies);
111979
111980@@ -785,7 +789,10 @@ embryonic_reset:
111981 * avoid becoming vulnerable to outside attack aiming at
111982 * resetting legit local connections.
111983 */
111984- req->rsk_ops->send_reset(sk, skb);
111985+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111986+ if (!grsec_enable_blackhole)
111987+#endif
111988+ req->rsk_ops->send_reset(sk, skb);
111989 } else if (fastopen) { /* received a valid RST pkt */
111990 reqsk_fastopen_remove(sk, req, true);
111991 tcp_reset(sk);
111992diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
111993index ebf5ff5..4d1ff32 100644
111994--- a/net/ipv4/tcp_probe.c
111995+++ b/net/ipv4/tcp_probe.c
111996@@ -236,7 +236,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
111997 if (cnt + width >= len)
111998 break;
111999
112000- if (copy_to_user(buf + cnt, tbuf, width))
112001+ if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
112002 return -EFAULT;
112003 cnt += width;
112004 }
112005diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
112006index 0732b78..a82bdc6 100644
112007--- a/net/ipv4/tcp_timer.c
112008+++ b/net/ipv4/tcp_timer.c
112009@@ -22,6 +22,10 @@
112010 #include <linux/gfp.h>
112011 #include <net/tcp.h>
112012
112013+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112014+extern int grsec_lastack_retries;
112015+#endif
112016+
112017 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
112018 int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
112019 int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
112020@@ -194,6 +198,13 @@ static int tcp_write_timeout(struct sock *sk)
112021 }
112022 }
112023
112024+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112025+ if ((sk->sk_state == TCP_LAST_ACK) &&
112026+ (grsec_lastack_retries > 0) &&
112027+ (grsec_lastack_retries < retry_until))
112028+ retry_until = grsec_lastack_retries;
112029+#endif
112030+
112031 if (retransmits_timed_out(sk, retry_until,
112032 syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
112033 /* Has it gone just too far? */
112034diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
112035index 97ef1f8b..e446c33 100644
112036--- a/net/ipv4/udp.c
112037+++ b/net/ipv4/udp.c
112038@@ -87,6 +87,7 @@
112039 #include <linux/types.h>
112040 #include <linux/fcntl.h>
112041 #include <linux/module.h>
112042+#include <linux/security.h>
112043 #include <linux/socket.h>
112044 #include <linux/sockios.h>
112045 #include <linux/igmp.h>
112046@@ -114,6 +115,10 @@
112047 #include <net/busy_poll.h>
112048 #include "udp_impl.h"
112049
112050+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112051+extern int grsec_enable_blackhole;
112052+#endif
112053+
112054 struct udp_table udp_table __read_mostly;
112055 EXPORT_SYMBOL(udp_table);
112056
112057@@ -608,6 +613,9 @@ static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk,
112058 return true;
112059 }
112060
112061+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
112062+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
112063+
112064 /*
112065 * This routine is called by the ICMP module when it gets some
112066 * sort of error condition. If err < 0 then the socket should
112067@@ -945,9 +953,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
112068 dport = usin->sin_port;
112069 if (dport == 0)
112070 return -EINVAL;
112071+
112072+ err = gr_search_udp_sendmsg(sk, usin);
112073+ if (err)
112074+ return err;
112075 } else {
112076 if (sk->sk_state != TCP_ESTABLISHED)
112077 return -EDESTADDRREQ;
112078+
112079+ err = gr_search_udp_sendmsg(sk, NULL);
112080+ if (err)
112081+ return err;
112082+
112083 daddr = inet->inet_daddr;
112084 dport = inet->inet_dport;
112085 /* Open fast path for connected socket.
112086@@ -1195,7 +1212,7 @@ static unsigned int first_packet_length(struct sock *sk)
112087 IS_UDPLITE(sk));
112088 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
112089 IS_UDPLITE(sk));
112090- atomic_inc(&sk->sk_drops);
112091+ atomic_inc_unchecked(&sk->sk_drops);
112092 __skb_unlink(skb, rcvq);
112093 __skb_queue_tail(&list_kill, skb);
112094 }
112095@@ -1275,6 +1292,10 @@ try_again:
112096 if (!skb)
112097 goto out;
112098
112099+ err = gr_search_udp_recvmsg(sk, skb);
112100+ if (err)
112101+ goto out_free;
112102+
112103 ulen = skb->len - sizeof(struct udphdr);
112104 copied = len;
112105 if (copied > ulen)
112106@@ -1307,7 +1328,7 @@ try_again:
112107 if (unlikely(err)) {
112108 trace_kfree_skb(skb, udp_recvmsg);
112109 if (!peeked) {
112110- atomic_inc(&sk->sk_drops);
112111+ atomic_inc_unchecked(&sk->sk_drops);
112112 UDP_INC_STATS_USER(sock_net(sk),
112113 UDP_MIB_INERRORS, is_udplite);
112114 }
112115@@ -1605,7 +1626,7 @@ csum_error:
112116 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
112117 drop:
112118 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
112119- atomic_inc(&sk->sk_drops);
112120+ atomic_inc_unchecked(&sk->sk_drops);
112121 kfree_skb(skb);
112122 return -1;
112123 }
112124@@ -1624,7 +1645,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
112125 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
112126
112127 if (!skb1) {
112128- atomic_inc(&sk->sk_drops);
112129+ atomic_inc_unchecked(&sk->sk_drops);
112130 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
112131 IS_UDPLITE(sk));
112132 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
112133@@ -1830,6 +1851,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
112134 goto csum_error;
112135
112136 UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
112137+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112138+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
112139+#endif
112140 icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
112141
112142 /*
112143@@ -2416,7 +2440,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
112144 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
112145 0, sock_i_ino(sp),
112146 atomic_read(&sp->sk_refcnt), sp,
112147- atomic_read(&sp->sk_drops));
112148+ atomic_read_unchecked(&sp->sk_drops));
112149 }
112150
112151 int udp4_seq_show(struct seq_file *seq, void *v)
112152diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
112153index 6156f68..d6ab46d 100644
112154--- a/net/ipv4/xfrm4_policy.c
112155+++ b/net/ipv4/xfrm4_policy.c
112156@@ -186,11 +186,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
112157 fl4->flowi4_tos = iph->tos;
112158 }
112159
112160-static inline int xfrm4_garbage_collect(struct dst_ops *ops)
112161+static int xfrm4_garbage_collect(struct dst_ops *ops)
112162 {
112163 struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
112164
112165- xfrm4_policy_afinfo.garbage_collect(net);
112166+ xfrm_garbage_collect_deferred(net);
112167 return (dst_entries_get_slow(ops) > ops->gc_thresh * 2);
112168 }
112169
112170@@ -269,19 +269,18 @@ static struct ctl_table xfrm4_policy_table[] = {
112171
112172 static int __net_init xfrm4_net_init(struct net *net)
112173 {
112174- struct ctl_table *table;
112175+ ctl_table_no_const *table = NULL;
112176 struct ctl_table_header *hdr;
112177
112178- table = xfrm4_policy_table;
112179 if (!net_eq(net, &init_net)) {
112180- table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
112181+ table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
112182 if (!table)
112183 goto err_alloc;
112184
112185 table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
112186- }
112187-
112188- hdr = register_net_sysctl(net, "net/ipv4", table);
112189+ hdr = register_net_sysctl(net, "net/ipv4", table);
112190+ } else
112191+ hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
112192 if (!hdr)
112193 goto err_reg;
112194
112195@@ -289,8 +288,7 @@ static int __net_init xfrm4_net_init(struct net *net)
112196 return 0;
112197
112198 err_reg:
112199- if (!net_eq(net, &init_net))
112200- kfree(table);
112201+ kfree(table);
112202 err_alloc:
112203 return -ENOMEM;
112204 }
112205diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
112206index b603002..0de5c88 100644
112207--- a/net/ipv6/addrconf.c
112208+++ b/net/ipv6/addrconf.c
112209@@ -171,7 +171,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
112210 .hop_limit = IPV6_DEFAULT_HOPLIMIT,
112211 .mtu6 = IPV6_MIN_MTU,
112212 .accept_ra = 1,
112213- .accept_redirects = 1,
112214+ .accept_redirects = 0,
112215 .autoconf = 1,
112216 .force_mld_version = 0,
112217 .mldv1_unsolicited_report_interval = 10 * HZ,
112218@@ -209,7 +209,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
112219 .hop_limit = IPV6_DEFAULT_HOPLIMIT,
112220 .mtu6 = IPV6_MIN_MTU,
112221 .accept_ra = 1,
112222- .accept_redirects = 1,
112223+ .accept_redirects = 0,
112224 .autoconf = 1,
112225 .force_mld_version = 0,
112226 .mldv1_unsolicited_report_interval = 10 * HZ,
112227@@ -607,7 +607,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb,
112228 idx = 0;
112229 head = &net->dev_index_head[h];
112230 rcu_read_lock();
112231- cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^
112232+ cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^
112233 net->dev_base_seq;
112234 hlist_for_each_entry_rcu(dev, head, index_hlist) {
112235 if (idx < s_idx)
112236@@ -2438,7 +2438,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
112237 p.iph.ihl = 5;
112238 p.iph.protocol = IPPROTO_IPV6;
112239 p.iph.ttl = 64;
112240- ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
112241+ ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
112242
112243 if (ops->ndo_do_ioctl) {
112244 mm_segment_t oldfs = get_fs();
112245@@ -3587,16 +3587,23 @@ static const struct file_operations if6_fops = {
112246 .release = seq_release_net,
112247 };
112248
112249+extern void register_ipv6_seq_ops_addr(struct seq_operations *addr);
112250+extern void unregister_ipv6_seq_ops_addr(void);
112251+
112252 static int __net_init if6_proc_net_init(struct net *net)
112253 {
112254- if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops))
112255+ register_ipv6_seq_ops_addr(&if6_seq_ops);
112256+ if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops)) {
112257+ unregister_ipv6_seq_ops_addr();
112258 return -ENOMEM;
112259+ }
112260 return 0;
112261 }
112262
112263 static void __net_exit if6_proc_net_exit(struct net *net)
112264 {
112265 remove_proc_entry("if_inet6", net->proc_net);
112266+ unregister_ipv6_seq_ops_addr();
112267 }
112268
112269 static struct pernet_operations if6_proc_net_ops = {
112270@@ -4215,7 +4222,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
112271 s_ip_idx = ip_idx = cb->args[2];
112272
112273 rcu_read_lock();
112274- cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
112275+ cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
112276 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
112277 idx = 0;
112278 head = &net->dev_index_head[h];
112279@@ -4864,7 +4871,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
112280 rt_genid_bump_ipv6(net);
112281 break;
112282 }
112283- atomic_inc(&net->ipv6.dev_addr_genid);
112284+ atomic_inc_unchecked(&net->ipv6.dev_addr_genid);
112285 }
112286
112287 static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
112288@@ -4884,7 +4891,7 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
112289 int *valp = ctl->data;
112290 int val = *valp;
112291 loff_t pos = *ppos;
112292- struct ctl_table lctl;
112293+ ctl_table_no_const lctl;
112294 int ret;
112295
112296 /*
112297@@ -4909,7 +4916,7 @@ int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
112298 {
112299 struct inet6_dev *idev = ctl->extra1;
112300 int min_mtu = IPV6_MIN_MTU;
112301- struct ctl_table lctl;
112302+ ctl_table_no_const lctl;
112303
112304 lctl = *ctl;
112305 lctl.extra1 = &min_mtu;
112306@@ -4984,7 +4991,7 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
112307 int *valp = ctl->data;
112308 int val = *valp;
112309 loff_t pos = *ppos;
112310- struct ctl_table lctl;
112311+ ctl_table_no_const lctl;
112312 int ret;
112313
112314 /*
112315diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
112316index e8c4400..a4cd5da 100644
112317--- a/net/ipv6/af_inet6.c
112318+++ b/net/ipv6/af_inet6.c
112319@@ -766,7 +766,7 @@ static int __net_init inet6_net_init(struct net *net)
112320 net->ipv6.sysctl.icmpv6_time = 1*HZ;
112321 net->ipv6.sysctl.flowlabel_consistency = 1;
112322 net->ipv6.sysctl.auto_flowlabels = 0;
112323- atomic_set(&net->ipv6.fib6_sernum, 1);
112324+ atomic_set_unchecked(&net->ipv6.fib6_sernum, 1);
112325
112326 err = ipv6_init_mibs(net);
112327 if (err)
112328diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
112329index ace8dac..bd6942d 100644
112330--- a/net/ipv6/datagram.c
112331+++ b/net/ipv6/datagram.c
112332@@ -957,5 +957,5 @@ void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
112333 0,
112334 sock_i_ino(sp),
112335 atomic_read(&sp->sk_refcnt), sp,
112336- atomic_read(&sp->sk_drops));
112337+ atomic_read_unchecked(&sp->sk_drops));
112338 }
112339diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
112340index a5e9519..16b7412 100644
112341--- a/net/ipv6/icmp.c
112342+++ b/net/ipv6/icmp.c
112343@@ -1005,7 +1005,7 @@ static struct ctl_table ipv6_icmp_table_template[] = {
112344
112345 struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
112346 {
112347- struct ctl_table *table;
112348+ ctl_table_no_const *table;
112349
112350 table = kmemdup(ipv6_icmp_table_template,
112351 sizeof(ipv6_icmp_table_template),
112352diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
112353index 263ef41..88c7be8 100644
112354--- a/net/ipv6/ip6_fib.c
112355+++ b/net/ipv6/ip6_fib.c
112356@@ -99,9 +99,9 @@ static int fib6_new_sernum(struct net *net)
112357 int new, old;
112358
112359 do {
112360- old = atomic_read(&net->ipv6.fib6_sernum);
112361+ old = atomic_read_unchecked(&net->ipv6.fib6_sernum);
112362 new = old < INT_MAX ? old + 1 : 1;
112363- } while (atomic_cmpxchg(&net->ipv6.fib6_sernum,
112364+ } while (atomic_cmpxchg_unchecked(&net->ipv6.fib6_sernum,
112365 old, new) != old);
112366 return new;
112367 }
112368diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
112369index bc28b7d..a08feea 100644
112370--- a/net/ipv6/ip6_gre.c
112371+++ b/net/ipv6/ip6_gre.c
112372@@ -71,8 +71,8 @@ struct ip6gre_net {
112373 struct net_device *fb_tunnel_dev;
112374 };
112375
112376-static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
112377-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly;
112378+static struct rtnl_link_ops ip6gre_link_ops;
112379+static struct rtnl_link_ops ip6gre_tap_ops;
112380 static int ip6gre_tunnel_init(struct net_device *dev);
112381 static void ip6gre_tunnel_setup(struct net_device *dev);
112382 static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
112383@@ -1289,7 +1289,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
112384 }
112385
112386
112387-static struct inet6_protocol ip6gre_protocol __read_mostly = {
112388+static struct inet6_protocol ip6gre_protocol = {
112389 .handler = ip6gre_rcv,
112390 .err_handler = ip6gre_err,
112391 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
112392@@ -1650,7 +1650,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
112393 [IFLA_GRE_FLAGS] = { .type = NLA_U32 },
112394 };
112395
112396-static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
112397+static struct rtnl_link_ops ip6gre_link_ops = {
112398 .kind = "ip6gre",
112399 .maxtype = IFLA_GRE_MAX,
112400 .policy = ip6gre_policy,
112401@@ -1665,7 +1665,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
112402 .get_link_net = ip6_tnl_get_link_net,
112403 };
112404
112405-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
112406+static struct rtnl_link_ops ip6gre_tap_ops = {
112407 .kind = "ip6gretap",
112408 .maxtype = IFLA_GRE_MAX,
112409 .policy = ip6gre_policy,
112410diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
112411index ddd94ec..b7cfefb 100644
112412--- a/net/ipv6/ip6_tunnel.c
112413+++ b/net/ipv6/ip6_tunnel.c
112414@@ -86,7 +86,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
112415
112416 static int ip6_tnl_dev_init(struct net_device *dev);
112417 static void ip6_tnl_dev_setup(struct net_device *dev);
112418-static struct rtnl_link_ops ip6_link_ops __read_mostly;
112419+static struct rtnl_link_ops ip6_link_ops;
112420
112421 static int ip6_tnl_net_id __read_mostly;
112422 struct ip6_tnl_net {
112423@@ -1780,7 +1780,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
112424 [IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
112425 };
112426
112427-static struct rtnl_link_ops ip6_link_ops __read_mostly = {
112428+static struct rtnl_link_ops ip6_link_ops = {
112429 .kind = "ip6tnl",
112430 .maxtype = IFLA_IPTUN_MAX,
112431 .policy = ip6_tnl_policy,
112432diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
112433index 5fb9e21..92bf04b 100644
112434--- a/net/ipv6/ip6_vti.c
112435+++ b/net/ipv6/ip6_vti.c
112436@@ -62,7 +62,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
112437
112438 static int vti6_dev_init(struct net_device *dev);
112439 static void vti6_dev_setup(struct net_device *dev);
112440-static struct rtnl_link_ops vti6_link_ops __read_mostly;
112441+static struct rtnl_link_ops vti6_link_ops;
112442
112443 static int vti6_net_id __read_mostly;
112444 struct vti6_net {
112445@@ -1004,7 +1004,7 @@ static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
112446 [IFLA_VTI_OKEY] = { .type = NLA_U32 },
112447 };
112448
112449-static struct rtnl_link_ops vti6_link_ops __read_mostly = {
112450+static struct rtnl_link_ops vti6_link_ops = {
112451 .kind = "vti6",
112452 .maxtype = IFLA_VTI_MAX,
112453 .policy = vti6_policy,
112454diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
112455index 8d766d9..dcdfea7 100644
112456--- a/net/ipv6/ipv6_sockglue.c
112457+++ b/net/ipv6/ipv6_sockglue.c
112458@@ -989,7 +989,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
112459 if (sk->sk_type != SOCK_STREAM)
112460 return -ENOPROTOOPT;
112461
112462- msg.msg_control = optval;
112463+ msg.msg_control = (void __force_kernel *)optval;
112464 msg.msg_controllen = len;
112465 msg.msg_flags = flags;
112466
112467diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
112468index bb00c6f..16c90d7 100644
112469--- a/net/ipv6/netfilter/ip6_tables.c
112470+++ b/net/ipv6/netfilter/ip6_tables.c
112471@@ -1083,14 +1083,14 @@ static int compat_table_info(const struct xt_table_info *info,
112472 #endif
112473
112474 static int get_info(struct net *net, void __user *user,
112475- const int *len, int compat)
112476+ int len, int compat)
112477 {
112478 char name[XT_TABLE_MAXNAMELEN];
112479 struct xt_table *t;
112480 int ret;
112481
112482- if (*len != sizeof(struct ip6t_getinfo)) {
112483- duprintf("length %u != %zu\n", *len,
112484+ if (len != sizeof(struct ip6t_getinfo)) {
112485+ duprintf("length %u != %zu\n", len,
112486 sizeof(struct ip6t_getinfo));
112487 return -EINVAL;
112488 }
112489@@ -1127,7 +1127,7 @@ static int get_info(struct net *net, void __user *user,
112490 info.size = private->size;
112491 strcpy(info.name, name);
112492
112493- if (copy_to_user(user, &info, *len) != 0)
112494+ if (copy_to_user(user, &info, len) != 0)
112495 ret = -EFAULT;
112496 else
112497 ret = 0;
112498@@ -1983,7 +1983,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
112499
112500 switch (cmd) {
112501 case IP6T_SO_GET_INFO:
112502- ret = get_info(sock_net(sk), user, len, 1);
112503+ ret = get_info(sock_net(sk), user, *len, 1);
112504 break;
112505 case IP6T_SO_GET_ENTRIES:
112506 ret = compat_get_entries(sock_net(sk), user, len);
112507@@ -2030,7 +2030,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
112508
112509 switch (cmd) {
112510 case IP6T_SO_GET_INFO:
112511- ret = get_info(sock_net(sk), user, len, 0);
112512+ ret = get_info(sock_net(sk), user, *len, 0);
112513 break;
112514
112515 case IP6T_SO_GET_ENTRIES:
112516diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
112517index 6f187c8..34b367f 100644
112518--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
112519+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
112520@@ -96,12 +96,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
112521
112522 static int nf_ct_frag6_sysctl_register(struct net *net)
112523 {
112524- struct ctl_table *table;
112525+ ctl_table_no_const *table = NULL;
112526 struct ctl_table_header *hdr;
112527
112528- table = nf_ct_frag6_sysctl_table;
112529 if (!net_eq(net, &init_net)) {
112530- table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
112531+ table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
112532 GFP_KERNEL);
112533 if (table == NULL)
112534 goto err_alloc;
112535@@ -112,9 +111,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
112536 table[2].data = &net->nf_frag.frags.high_thresh;
112537 table[2].extra1 = &net->nf_frag.frags.low_thresh;
112538 table[2].extra2 = &init_net.nf_frag.frags.high_thresh;
112539- }
112540-
112541- hdr = register_net_sysctl(net, "net/netfilter", table);
112542+ hdr = register_net_sysctl(net, "net/netfilter", table);
112543+ } else
112544+ hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
112545 if (hdr == NULL)
112546 goto err_reg;
112547
112548@@ -122,8 +121,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
112549 return 0;
112550
112551 err_reg:
112552- if (!net_eq(net, &init_net))
112553- kfree(table);
112554+ kfree(table);
112555 err_alloc:
112556 return -ENOMEM;
112557 }
112558diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
112559index a2dfff6..1e52e6d 100644
112560--- a/net/ipv6/ping.c
112561+++ b/net/ipv6/ping.c
112562@@ -241,6 +241,24 @@ static struct pernet_operations ping_v6_net_ops = {
112563 };
112564 #endif
112565
112566+static struct pingv6_ops real_pingv6_ops = {
112567+ .ipv6_recv_error = ipv6_recv_error,
112568+ .ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl,
112569+ .ip6_datagram_recv_specific_ctl = ip6_datagram_recv_specific_ctl,
112570+ .icmpv6_err_convert = icmpv6_err_convert,
112571+ .ipv6_icmp_error = ipv6_icmp_error,
112572+ .ipv6_chk_addr = ipv6_chk_addr,
112573+};
112574+
112575+static struct pingv6_ops dummy_pingv6_ops = {
112576+ .ipv6_recv_error = dummy_ipv6_recv_error,
112577+ .ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl,
112578+ .ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl,
112579+ .icmpv6_err_convert = dummy_icmpv6_err_convert,
112580+ .ipv6_icmp_error = dummy_ipv6_icmp_error,
112581+ .ipv6_chk_addr = dummy_ipv6_chk_addr,
112582+};
112583+
112584 int __init pingv6_init(void)
112585 {
112586 #ifdef CONFIG_PROC_FS
112587@@ -248,13 +266,7 @@ int __init pingv6_init(void)
112588 if (ret)
112589 return ret;
112590 #endif
112591- pingv6_ops.ipv6_recv_error = ipv6_recv_error;
112592- pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl;
112593- pingv6_ops.ip6_datagram_recv_specific_ctl =
112594- ip6_datagram_recv_specific_ctl;
112595- pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
112596- pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
112597- pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
112598+ pingv6_ops = &real_pingv6_ops;
112599 return inet6_register_protosw(&pingv6_protosw);
112600 }
112601
112602@@ -263,14 +275,9 @@ int __init pingv6_init(void)
112603 */
112604 void pingv6_exit(void)
112605 {
112606- pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
112607- pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl;
112608- pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl;
112609- pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
112610- pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
112611- pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
112612 #ifdef CONFIG_PROC_FS
112613 unregister_pernet_subsys(&ping_v6_net_ops);
112614 #endif
112615+ pingv6_ops = &dummy_pingv6_ops;
112616 inet6_unregister_protosw(&pingv6_protosw);
112617 }
112618diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
112619index 679253d0..70b653c 100644
112620--- a/net/ipv6/proc.c
112621+++ b/net/ipv6/proc.c
112622@@ -310,7 +310,7 @@ static int __net_init ipv6_proc_init_net(struct net *net)
112623 if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
112624 goto proc_snmp6_fail;
112625
112626- net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
112627+ net->mib.proc_net_devsnmp6 = proc_mkdir_restrict("dev_snmp6", net->proc_net);
112628 if (!net->mib.proc_net_devsnmp6)
112629 goto proc_dev_snmp6_fail;
112630 return 0;
112631diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
112632index dae7f1a..783b20d 100644
112633--- a/net/ipv6/raw.c
112634+++ b/net/ipv6/raw.c
112635@@ -388,7 +388,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
112636 {
112637 if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
112638 skb_checksum_complete(skb)) {
112639- atomic_inc(&sk->sk_drops);
112640+ atomic_inc_unchecked(&sk->sk_drops);
112641 kfree_skb(skb);
112642 return NET_RX_DROP;
112643 }
112644@@ -416,7 +416,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
112645 struct raw6_sock *rp = raw6_sk(sk);
112646
112647 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
112648- atomic_inc(&sk->sk_drops);
112649+ atomic_inc_unchecked(&sk->sk_drops);
112650 kfree_skb(skb);
112651 return NET_RX_DROP;
112652 }
112653@@ -440,7 +440,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
112654
112655 if (inet->hdrincl) {
112656 if (skb_checksum_complete(skb)) {
112657- atomic_inc(&sk->sk_drops);
112658+ atomic_inc_unchecked(&sk->sk_drops);
112659 kfree_skb(skb);
112660 return NET_RX_DROP;
112661 }
112662@@ -609,7 +609,7 @@ out:
112663 return err;
112664 }
112665
112666-static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
112667+static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, unsigned int length,
112668 struct flowi6 *fl6, struct dst_entry **dstp,
112669 unsigned int flags)
112670 {
112671@@ -915,12 +915,15 @@ do_confirm:
112672 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
112673 char __user *optval, int optlen)
112674 {
112675+ struct icmp6_filter filter;
112676+
112677 switch (optname) {
112678 case ICMPV6_FILTER:
112679 if (optlen > sizeof(struct icmp6_filter))
112680 optlen = sizeof(struct icmp6_filter);
112681- if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
112682+ if (copy_from_user(&filter, optval, optlen))
112683 return -EFAULT;
112684+ raw6_sk(sk)->filter = filter;
112685 return 0;
112686 default:
112687 return -ENOPROTOOPT;
112688@@ -933,6 +936,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
112689 char __user *optval, int __user *optlen)
112690 {
112691 int len;
112692+ struct icmp6_filter filter;
112693
112694 switch (optname) {
112695 case ICMPV6_FILTER:
112696@@ -944,7 +948,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
112697 len = sizeof(struct icmp6_filter);
112698 if (put_user(len, optlen))
112699 return -EFAULT;
112700- if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
112701+ filter = raw6_sk(sk)->filter;
112702+ if (len > sizeof filter || copy_to_user(optval, &filter, len))
112703 return -EFAULT;
112704 return 0;
112705 default:
112706diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
112707index d7d70e6..bd5e9fc 100644
112708--- a/net/ipv6/reassembly.c
112709+++ b/net/ipv6/reassembly.c
112710@@ -626,12 +626,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
112711
112712 static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112713 {
112714- struct ctl_table *table;
112715+ ctl_table_no_const *table = NULL;
112716 struct ctl_table_header *hdr;
112717
112718- table = ip6_frags_ns_ctl_table;
112719 if (!net_eq(net, &init_net)) {
112720- table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
112721+ table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
112722 if (table == NULL)
112723 goto err_alloc;
112724
112725@@ -645,9 +644,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112726 /* Don't export sysctls to unprivileged users */
112727 if (net->user_ns != &init_user_ns)
112728 table[0].procname = NULL;
112729- }
112730+ hdr = register_net_sysctl(net, "net/ipv6", table);
112731+ } else
112732+ hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
112733
112734- hdr = register_net_sysctl(net, "net/ipv6", table);
112735 if (hdr == NULL)
112736 goto err_reg;
112737
112738@@ -655,8 +655,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112739 return 0;
112740
112741 err_reg:
112742- if (!net_eq(net, &init_net))
112743- kfree(table);
112744+ kfree(table);
112745 err_alloc:
112746 return -ENOMEM;
112747 }
112748diff --git a/net/ipv6/route.c b/net/ipv6/route.c
112749index 4688bd4..584453d 100644
112750--- a/net/ipv6/route.c
112751+++ b/net/ipv6/route.c
112752@@ -3029,7 +3029,7 @@ struct ctl_table ipv6_route_table_template[] = {
112753
112754 struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
112755 {
112756- struct ctl_table *table;
112757+ ctl_table_no_const *table;
112758
112759 table = kmemdup(ipv6_route_table_template,
112760 sizeof(ipv6_route_table_template),
112761diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
112762index e4cbd57..02b1aaa 100644
112763--- a/net/ipv6/sit.c
112764+++ b/net/ipv6/sit.c
112765@@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
112766 static void ipip6_dev_free(struct net_device *dev);
112767 static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
112768 __be32 *v4dst);
112769-static struct rtnl_link_ops sit_link_ops __read_mostly;
112770+static struct rtnl_link_ops sit_link_ops;
112771
112772 static int sit_net_id __read_mostly;
112773 struct sit_net {
112774@@ -1751,7 +1751,7 @@ static void ipip6_dellink(struct net_device *dev, struct list_head *head)
112775 unregister_netdevice_queue(dev, head);
112776 }
112777
112778-static struct rtnl_link_ops sit_link_ops __read_mostly = {
112779+static struct rtnl_link_ops sit_link_ops = {
112780 .kind = "sit",
112781 .maxtype = IFLA_IPTUN_MAX,
112782 .policy = ipip6_policy,
112783diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
112784index c5c10fa..2577d51 100644
112785--- a/net/ipv6/sysctl_net_ipv6.c
112786+++ b/net/ipv6/sysctl_net_ipv6.c
112787@@ -78,7 +78,7 @@ static struct ctl_table ipv6_rotable[] = {
112788
112789 static int __net_init ipv6_sysctl_net_init(struct net *net)
112790 {
112791- struct ctl_table *ipv6_table;
112792+ ctl_table_no_const *ipv6_table;
112793 struct ctl_table *ipv6_route_table;
112794 struct ctl_table *ipv6_icmp_table;
112795 int err;
112796diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
112797index 1f5e622..8387d90 100644
112798--- a/net/ipv6/tcp_ipv6.c
112799+++ b/net/ipv6/tcp_ipv6.c
112800@@ -104,6 +104,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
112801 }
112802 }
112803
112804+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112805+extern int grsec_enable_blackhole;
112806+#endif
112807+
112808 static void tcp_v6_hash(struct sock *sk)
112809 {
112810 if (sk->sk_state != TCP_CLOSE) {
112811@@ -1345,6 +1349,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
112812 return 0;
112813
112814 reset:
112815+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112816+ if (!grsec_enable_blackhole)
112817+#endif
112818 tcp_v6_send_reset(sk, skb);
112819 discard:
112820 if (opt_skb)
112821@@ -1454,12 +1461,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
112822
112823 sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest,
112824 inet6_iif(skb));
112825- if (!sk)
112826+ if (!sk) {
112827+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112828+ ret = 1;
112829+#endif
112830 goto no_tcp_socket;
112831+ }
112832
112833 process:
112834- if (sk->sk_state == TCP_TIME_WAIT)
112835+ if (sk->sk_state == TCP_TIME_WAIT) {
112836+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112837+ ret = 2;
112838+#endif
112839 goto do_time_wait;
112840+ }
112841
112842 if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
112843 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
112844@@ -1510,6 +1525,10 @@ csum_error:
112845 bad_packet:
112846 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
112847 } else {
112848+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112849+ if (!grsec_enable_blackhole || (ret == 1 &&
112850+ (skb->dev->flags & IFF_LOOPBACK)))
112851+#endif
112852 tcp_v6_send_reset(NULL, skb);
112853 }
112854
112855diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
112856index d048d46..bf141c3 100644
112857--- a/net/ipv6/udp.c
112858+++ b/net/ipv6/udp.c
112859@@ -76,6 +76,10 @@ static unsigned int udp6_ehashfn(struct net *net,
112860 udp_ipv6_hash_secret + net_hash_mix(net));
112861 }
112862
112863+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112864+extern int grsec_enable_blackhole;
112865+#endif
112866+
112867 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
112868 {
112869 const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
112870@@ -448,7 +452,7 @@ try_again:
112871 if (unlikely(err)) {
112872 trace_kfree_skb(skb, udpv6_recvmsg);
112873 if (!peeked) {
112874- atomic_inc(&sk->sk_drops);
112875+ atomic_inc_unchecked(&sk->sk_drops);
112876 if (is_udp4)
112877 UDP_INC_STATS_USER(sock_net(sk),
112878 UDP_MIB_INERRORS,
112879@@ -714,7 +718,7 @@ csum_error:
112880 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
112881 drop:
112882 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
112883- atomic_inc(&sk->sk_drops);
112884+ atomic_inc_unchecked(&sk->sk_drops);
112885 kfree_skb(skb);
112886 return -1;
112887 }
112888@@ -753,7 +757,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
112889 if (likely(skb1 == NULL))
112890 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
112891 if (!skb1) {
112892- atomic_inc(&sk->sk_drops);
112893+ atomic_inc_unchecked(&sk->sk_drops);
112894 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
112895 IS_UDPLITE(sk));
112896 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
112897@@ -937,6 +941,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
112898 goto csum_error;
112899
112900 UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
112901+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112902+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
112903+#endif
112904 icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
112905
112906 kfree_skb(skb);
112907diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
112908index 8d2d01b4..313511e 100644
112909--- a/net/ipv6/xfrm6_policy.c
112910+++ b/net/ipv6/xfrm6_policy.c
112911@@ -224,11 +224,11 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
112912 }
112913 }
112914
112915-static inline int xfrm6_garbage_collect(struct dst_ops *ops)
112916+static int xfrm6_garbage_collect(struct dst_ops *ops)
112917 {
112918 struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
112919
112920- xfrm6_policy_afinfo.garbage_collect(net);
112921+ xfrm_garbage_collect_deferred(net);
112922 return dst_entries_get_fast(ops) > ops->gc_thresh * 2;
112923 }
112924
112925@@ -341,19 +341,19 @@ static struct ctl_table xfrm6_policy_table[] = {
112926
112927 static int __net_init xfrm6_net_init(struct net *net)
112928 {
112929- struct ctl_table *table;
112930+ ctl_table_no_const *table = NULL;
112931 struct ctl_table_header *hdr;
112932
112933- table = xfrm6_policy_table;
112934 if (!net_eq(net, &init_net)) {
112935- table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
112936+ table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
112937 if (!table)
112938 goto err_alloc;
112939
112940 table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
112941- }
112942+ hdr = register_net_sysctl(net, "net/ipv6", table);
112943+ } else
112944+ hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
112945
112946- hdr = register_net_sysctl(net, "net/ipv6", table);
112947 if (!hdr)
112948 goto err_reg;
112949
112950@@ -361,8 +361,7 @@ static int __net_init xfrm6_net_init(struct net *net)
112951 return 0;
112952
112953 err_reg:
112954- if (!net_eq(net, &init_net))
112955- kfree(table);
112956+ kfree(table);
112957 err_alloc:
112958 return -ENOMEM;
112959 }
112960diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
112961index c1d247e..9e5949d 100644
112962--- a/net/ipx/ipx_proc.c
112963+++ b/net/ipx/ipx_proc.c
112964@@ -289,7 +289,7 @@ int __init ipx_proc_init(void)
112965 struct proc_dir_entry *p;
112966 int rc = -ENOMEM;
112967
112968- ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
112969+ ipx_proc_dir = proc_mkdir_restrict("ipx", init_net.proc_net);
112970
112971 if (!ipx_proc_dir)
112972 goto out;
112973diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
112974index 683346d..cb0e12d 100644
112975--- a/net/irda/ircomm/ircomm_tty.c
112976+++ b/net/irda/ircomm/ircomm_tty.c
112977@@ -310,10 +310,10 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
112978 add_wait_queue(&port->open_wait, &wait);
112979
112980 pr_debug("%s(%d):block_til_ready before block on %s open_count=%d\n",
112981- __FILE__, __LINE__, tty->driver->name, port->count);
112982+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
112983
112984 spin_lock_irqsave(&port->lock, flags);
112985- port->count--;
112986+ atomic_dec(&port->count);
112987 port->blocked_open++;
112988 spin_unlock_irqrestore(&port->lock, flags);
112989
112990@@ -348,7 +348,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
112991 }
112992
112993 pr_debug("%s(%d):block_til_ready blocking on %s open_count=%d\n",
112994- __FILE__, __LINE__, tty->driver->name, port->count);
112995+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
112996
112997 schedule();
112998 }
112999@@ -358,12 +358,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
113000
113001 spin_lock_irqsave(&port->lock, flags);
113002 if (!tty_hung_up_p(filp))
113003- port->count++;
113004+ atomic_inc(&port->count);
113005 port->blocked_open--;
113006 spin_unlock_irqrestore(&port->lock, flags);
113007
113008 pr_debug("%s(%d):block_til_ready after blocking on %s open_count=%d\n",
113009- __FILE__, __LINE__, tty->driver->name, port->count);
113010+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
113011
113012 if (!retval)
113013 port->flags |= ASYNC_NORMAL_ACTIVE;
113014@@ -433,12 +433,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
113015
113016 /* ++ is not atomic, so this should be protected - Jean II */
113017 spin_lock_irqsave(&self->port.lock, flags);
113018- self->port.count++;
113019+ atomic_inc(&self->port.count);
113020 spin_unlock_irqrestore(&self->port.lock, flags);
113021 tty_port_tty_set(&self->port, tty);
113022
113023 pr_debug("%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
113024- self->line, self->port.count);
113025+ self->line, atomic_read(&self->port.count));
113026
113027 /* Not really used by us, but lets do it anyway */
113028 self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
113029@@ -961,7 +961,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
113030 tty_kref_put(port->tty);
113031 }
113032 port->tty = NULL;
113033- port->count = 0;
113034+ atomic_set(&port->count, 0);
113035 spin_unlock_irqrestore(&port->lock, flags);
113036
113037 wake_up_interruptible(&port->open_wait);
113038@@ -1308,7 +1308,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
113039 seq_putc(m, '\n');
113040
113041 seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
113042- seq_printf(m, "Open count: %d\n", self->port.count);
113043+ seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
113044 seq_printf(m, "Max data size: %d\n", self->max_data_size);
113045 seq_printf(m, "Max header size: %d\n", self->max_header_size);
113046
113047diff --git a/net/irda/irproc.c b/net/irda/irproc.c
113048index b9ac598..f88cc56 100644
113049--- a/net/irda/irproc.c
113050+++ b/net/irda/irproc.c
113051@@ -66,7 +66,7 @@ void __init irda_proc_register(void)
113052 {
113053 int i;
113054
113055- proc_irda = proc_mkdir("irda", init_net.proc_net);
113056+ proc_irda = proc_mkdir_restrict("irda", init_net.proc_net);
113057 if (proc_irda == NULL)
113058 return;
113059
113060diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
113061index 53d9311..cbaf99f 100644
113062--- a/net/iucv/af_iucv.c
113063+++ b/net/iucv/af_iucv.c
113064@@ -686,10 +686,10 @@ static void __iucv_auto_name(struct iucv_sock *iucv)
113065 {
113066 char name[12];
113067
113068- sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
113069+ sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
113070 while (__iucv_get_sock_by_name(name)) {
113071 sprintf(name, "%08x",
113072- atomic_inc_return(&iucv_sk_list.autobind_name));
113073+ atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
113074 }
113075 memcpy(iucv->src_name, name, 8);
113076 }
113077diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
113078index 2a6a1fd..6c112b0 100644
113079--- a/net/iucv/iucv.c
113080+++ b/net/iucv/iucv.c
113081@@ -702,7 +702,7 @@ static int iucv_cpu_notify(struct notifier_block *self,
113082 return NOTIFY_OK;
113083 }
113084
113085-static struct notifier_block __refdata iucv_cpu_notifier = {
113086+static struct notifier_block iucv_cpu_notifier = {
113087 .notifier_call = iucv_cpu_notify,
113088 };
113089
113090diff --git a/net/key/af_key.c b/net/key/af_key.c
113091index f8ac939..1e189bf 100644
113092--- a/net/key/af_key.c
113093+++ b/net/key/af_key.c
113094@@ -3049,10 +3049,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
113095 static u32 get_acqseq(void)
113096 {
113097 u32 res;
113098- static atomic_t acqseq;
113099+ static atomic_unchecked_t acqseq;
113100
113101 do {
113102- res = atomic_inc_return(&acqseq);
113103+ res = atomic_inc_return_unchecked(&acqseq);
113104 } while (!res);
113105 return res;
113106 }
113107diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
113108index 781b3a2..73a7434 100644
113109--- a/net/l2tp/l2tp_eth.c
113110+++ b/net/l2tp/l2tp_eth.c
113111@@ -42,12 +42,12 @@ struct l2tp_eth {
113112 struct sock *tunnel_sock;
113113 struct l2tp_session *session;
113114 struct list_head list;
113115- atomic_long_t tx_bytes;
113116- atomic_long_t tx_packets;
113117- atomic_long_t tx_dropped;
113118- atomic_long_t rx_bytes;
113119- atomic_long_t rx_packets;
113120- atomic_long_t rx_errors;
113121+ atomic_long_unchecked_t tx_bytes;
113122+ atomic_long_unchecked_t tx_packets;
113123+ atomic_long_unchecked_t tx_dropped;
113124+ atomic_long_unchecked_t rx_bytes;
113125+ atomic_long_unchecked_t rx_packets;
113126+ atomic_long_unchecked_t rx_errors;
113127 };
113128
113129 /* via l2tp_session_priv() */
113130@@ -98,10 +98,10 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
113131 int ret = l2tp_xmit_skb(session, skb, session->hdr_len);
113132
113133 if (likely(ret == NET_XMIT_SUCCESS)) {
113134- atomic_long_add(len, &priv->tx_bytes);
113135- atomic_long_inc(&priv->tx_packets);
113136+ atomic_long_add_unchecked(len, &priv->tx_bytes);
113137+ atomic_long_inc_unchecked(&priv->tx_packets);
113138 } else {
113139- atomic_long_inc(&priv->tx_dropped);
113140+ atomic_long_inc_unchecked(&priv->tx_dropped);
113141 }
113142 return NETDEV_TX_OK;
113143 }
113144@@ -111,12 +111,12 @@ static struct rtnl_link_stats64 *l2tp_eth_get_stats64(struct net_device *dev,
113145 {
113146 struct l2tp_eth *priv = netdev_priv(dev);
113147
113148- stats->tx_bytes = atomic_long_read(&priv->tx_bytes);
113149- stats->tx_packets = atomic_long_read(&priv->tx_packets);
113150- stats->tx_dropped = atomic_long_read(&priv->tx_dropped);
113151- stats->rx_bytes = atomic_long_read(&priv->rx_bytes);
113152- stats->rx_packets = atomic_long_read(&priv->rx_packets);
113153- stats->rx_errors = atomic_long_read(&priv->rx_errors);
113154+ stats->tx_bytes = atomic_long_read_unchecked(&priv->tx_bytes);
113155+ stats->tx_packets = atomic_long_read_unchecked(&priv->tx_packets);
113156+ stats->tx_dropped = atomic_long_read_unchecked(&priv->tx_dropped);
113157+ stats->rx_bytes = atomic_long_read_unchecked(&priv->rx_bytes);
113158+ stats->rx_packets = atomic_long_read_unchecked(&priv->rx_packets);
113159+ stats->rx_errors = atomic_long_read_unchecked(&priv->rx_errors);
113160 return stats;
113161 }
113162
113163@@ -167,15 +167,15 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
113164 nf_reset(skb);
113165
113166 if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) {
113167- atomic_long_inc(&priv->rx_packets);
113168- atomic_long_add(data_len, &priv->rx_bytes);
113169+ atomic_long_inc_unchecked(&priv->rx_packets);
113170+ atomic_long_add_unchecked(data_len, &priv->rx_bytes);
113171 } else {
113172- atomic_long_inc(&priv->rx_errors);
113173+ atomic_long_inc_unchecked(&priv->rx_errors);
113174 }
113175 return;
113176
113177 error:
113178- atomic_long_inc(&priv->rx_errors);
113179+ atomic_long_inc_unchecked(&priv->rx_errors);
113180 kfree_skb(skb);
113181 }
113182
113183diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
113184index 05dfc8aa..df6cfd7 100644
113185--- a/net/l2tp/l2tp_ip.c
113186+++ b/net/l2tp/l2tp_ip.c
113187@@ -608,7 +608,7 @@ static struct inet_protosw l2tp_ip_protosw = {
113188 .ops = &l2tp_ip_ops,
113189 };
113190
113191-static struct net_protocol l2tp_ip_protocol __read_mostly = {
113192+static const struct net_protocol l2tp_ip_protocol = {
113193 .handler = l2tp_ip_recv,
113194 .netns_ok = 1,
113195 };
113196diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
113197index 8611f1b..bc60a2d 100644
113198--- a/net/l2tp/l2tp_ip6.c
113199+++ b/net/l2tp/l2tp_ip6.c
113200@@ -757,7 +757,7 @@ static struct inet_protosw l2tp_ip6_protosw = {
113201 .ops = &l2tp_ip6_ops,
113202 };
113203
113204-static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
113205+static const struct inet6_protocol l2tp_ip6_protocol = {
113206 .handler = l2tp_ip6_recv,
113207 };
113208
113209diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
113210index 1a3c7e0..80f8b0c 100644
113211--- a/net/llc/llc_proc.c
113212+++ b/net/llc/llc_proc.c
113213@@ -247,7 +247,7 @@ int __init llc_proc_init(void)
113214 int rc = -ENOMEM;
113215 struct proc_dir_entry *p;
113216
113217- llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
113218+ llc_proc_dir = proc_mkdir_restrict("llc", init_net.proc_net);
113219 if (!llc_proc_dir)
113220 goto out;
113221
113222diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
113223index dd4ff36..3462997 100644
113224--- a/net/mac80211/cfg.c
113225+++ b/net/mac80211/cfg.c
113226@@ -581,7 +581,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
113227 ret = ieee80211_vif_use_channel(sdata, chandef,
113228 IEEE80211_CHANCTX_EXCLUSIVE);
113229 }
113230- } else if (local->open_count == local->monitors) {
113231+ } else if (local_read(&local->open_count) == local->monitors) {
113232 local->_oper_chandef = *chandef;
113233 ieee80211_hw_config(local, 0);
113234 }
113235@@ -3468,7 +3468,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
113236 else
113237 local->probe_req_reg--;
113238
113239- if (!local->open_count)
113240+ if (!local_read(&local->open_count))
113241 break;
113242
113243 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
113244@@ -3603,8 +3603,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
113245 if (chanctx_conf) {
113246 *chandef = sdata->vif.bss_conf.chandef;
113247 ret = 0;
113248- } else if (local->open_count > 0 &&
113249- local->open_count == local->monitors &&
113250+ } else if (local_read(&local->open_count) > 0 &&
113251+ local_read(&local->open_count) == local->monitors &&
113252 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
113253 if (local->use_chanctx)
113254 *chandef = local->monitor_chandef;
113255diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
113256index 8d53d65..a4ac794 100644
113257--- a/net/mac80211/ieee80211_i.h
113258+++ b/net/mac80211/ieee80211_i.h
113259@@ -29,6 +29,7 @@
113260 #include <net/ieee80211_radiotap.h>
113261 #include <net/cfg80211.h>
113262 #include <net/mac80211.h>
113263+#include <asm/local.h>
113264 #include "key.h"
113265 #include "sta_info.h"
113266 #include "debug.h"
113267@@ -1126,7 +1127,7 @@ struct ieee80211_local {
113268 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
113269 spinlock_t queue_stop_reason_lock;
113270
113271- int open_count;
113272+ local_t open_count;
113273 int monitors, cooked_mntrs;
113274 /* number of interfaces with corresponding FIF_ flags */
113275 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
113276diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
113277index 81a2751..c06a026 100644
113278--- a/net/mac80211/iface.c
113279+++ b/net/mac80211/iface.c
113280@@ -544,7 +544,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113281 break;
113282 }
113283
113284- if (local->open_count == 0) {
113285+ if (local_read(&local->open_count) == 0) {
113286 res = drv_start(local);
113287 if (res)
113288 goto err_del_bss;
113289@@ -591,7 +591,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113290 res = drv_add_interface(local, sdata);
113291 if (res)
113292 goto err_stop;
113293- } else if (local->monitors == 0 && local->open_count == 0) {
113294+ } else if (local->monitors == 0 && local_read(&local->open_count) == 0) {
113295 res = ieee80211_add_virtual_monitor(local);
113296 if (res)
113297 goto err_stop;
113298@@ -701,7 +701,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113299 atomic_inc(&local->iff_promiscs);
113300
113301 if (coming_up)
113302- local->open_count++;
113303+ local_inc(&local->open_count);
113304
113305 if (hw_reconf_flags)
113306 ieee80211_hw_config(local, hw_reconf_flags);
113307@@ -739,7 +739,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113308 err_del_interface:
113309 drv_remove_interface(local, sdata);
113310 err_stop:
113311- if (!local->open_count)
113312+ if (!local_read(&local->open_count))
113313 drv_stop(local);
113314 err_del_bss:
113315 sdata->bss = NULL;
113316@@ -907,7 +907,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113317 }
113318
113319 if (going_down)
113320- local->open_count--;
113321+ local_dec(&local->open_count);
113322
113323 switch (sdata->vif.type) {
113324 case NL80211_IFTYPE_AP_VLAN:
113325@@ -969,7 +969,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113326 }
113327 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
113328
113329- if (local->open_count == 0)
113330+ if (local_read(&local->open_count) == 0)
113331 ieee80211_clear_tx_pending(local);
113332
113333 /*
113334@@ -1012,7 +1012,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113335 if (cancel_scan)
113336 flush_delayed_work(&local->scan_work);
113337
113338- if (local->open_count == 0) {
113339+ if (local_read(&local->open_count) == 0) {
113340 ieee80211_stop_device(local);
113341
113342 /* no reconfiguring after stop! */
113343@@ -1023,7 +1023,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113344 ieee80211_configure_filter(local);
113345 ieee80211_hw_config(local, hw_reconf_flags);
113346
113347- if (local->monitors == local->open_count)
113348+ if (local->monitors == local_read(&local->open_count))
113349 ieee80211_add_virtual_monitor(local);
113350 }
113351
113352diff --git a/net/mac80211/main.c b/net/mac80211/main.c
113353index 5e09d35..e2fdbe2 100644
113354--- a/net/mac80211/main.c
113355+++ b/net/mac80211/main.c
113356@@ -175,7 +175,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
113357 changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
113358 IEEE80211_CONF_CHANGE_POWER);
113359
113360- if (changed && local->open_count) {
113361+ if (changed && local_read(&local->open_count)) {
113362 ret = drv_config(local, changed);
113363 /*
113364 * Goal:
113365diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
113366index ca405b6..6cc8bee 100644
113367--- a/net/mac80211/pm.c
113368+++ b/net/mac80211/pm.c
113369@@ -12,7 +12,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113370 struct ieee80211_sub_if_data *sdata;
113371 struct sta_info *sta;
113372
113373- if (!local->open_count)
113374+ if (!local_read(&local->open_count))
113375 goto suspend;
113376
113377 ieee80211_scan_cancel(local);
113378@@ -59,7 +59,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113379 cancel_work_sync(&local->dynamic_ps_enable_work);
113380 del_timer_sync(&local->dynamic_ps_timer);
113381
113382- local->wowlan = wowlan && local->open_count;
113383+ local->wowlan = wowlan && local_read(&local->open_count);
113384 if (local->wowlan) {
113385 int err = drv_suspend(local, wowlan);
113386 if (err < 0) {
113387@@ -126,7 +126,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113388 WARN_ON(!list_empty(&local->chanctx_list));
113389
113390 /* stop hardware - this must stop RX */
113391- if (local->open_count)
113392+ if (local_read(&local->open_count))
113393 ieee80211_stop_device(local);
113394
113395 suspend:
113396diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
113397index d53355b..21f583a 100644
113398--- a/net/mac80211/rate.c
113399+++ b/net/mac80211/rate.c
113400@@ -724,7 +724,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
113401
113402 ASSERT_RTNL();
113403
113404- if (local->open_count)
113405+ if (local_read(&local->open_count))
113406 return -EBUSY;
113407
113408 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
113409diff --git a/net/mac80211/util.c b/net/mac80211/util.c
113410index 747bdcf..eb2b981 100644
113411--- a/net/mac80211/util.c
113412+++ b/net/mac80211/util.c
113413@@ -1741,7 +1741,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113414 bool sched_scan_stopped = false;
113415
113416 /* nothing to do if HW shouldn't run */
113417- if (!local->open_count)
113418+ if (!local_read(&local->open_count))
113419 goto wake_up;
113420
113421 #ifdef CONFIG_PM
113422@@ -1993,7 +1993,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113423 local->in_reconfig = false;
113424 barrier();
113425
113426- if (local->monitors == local->open_count && local->monitors > 0)
113427+ if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
113428 ieee80211_add_virtual_monitor(local);
113429
113430 /*
113431@@ -2048,7 +2048,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113432 * If this is for hw restart things are still running.
113433 * We may want to change that later, however.
113434 */
113435- if (local->open_count && (!local->suspended || reconfig_due_to_wowlan))
113436+ if (local_read(&local->open_count) && (!local->suspended || reconfig_due_to_wowlan))
113437 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
113438
113439 if (!local->suspended)
113440@@ -2072,7 +2072,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113441 flush_delayed_work(&local->scan_work);
113442 }
113443
113444- if (local->open_count && !reconfig_due_to_wowlan)
113445+ if (local_read(&local->open_count) && !reconfig_due_to_wowlan)
113446 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND);
113447
113448 list_for_each_entry(sdata, &local->interfaces, list) {
113449diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
113450index b02660f..c0f791c 100644
113451--- a/net/netfilter/Kconfig
113452+++ b/net/netfilter/Kconfig
113453@@ -1122,6 +1122,16 @@ config NETFILTER_XT_MATCH_ESP
113454
113455 To compile it as a module, choose M here. If unsure, say N.
113456
113457+config NETFILTER_XT_MATCH_GRADM
113458+ tristate '"gradm" match support'
113459+ depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
113460+ depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
113461+ ---help---
113462+ The gradm match allows to match on grsecurity RBAC being enabled.
113463+ It is useful when iptables rules are applied early on bootup to
113464+ prevent connections to the machine (except from a trusted host)
113465+ while the RBAC system is disabled.
113466+
113467 config NETFILTER_XT_MATCH_HASHLIMIT
113468 tristate '"hashlimit" match support'
113469 depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
113470diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
113471index 89f73a9..e4e5bd9 100644
113472--- a/net/netfilter/Makefile
113473+++ b/net/netfilter/Makefile
113474@@ -139,6 +139,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
113475 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
113476 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
113477 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
113478+obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
113479 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
113480 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
113481 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
113482diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
113483index d259da3..6a32b2c 100644
113484--- a/net/netfilter/ipset/ip_set_core.c
113485+++ b/net/netfilter/ipset/ip_set_core.c
113486@@ -1952,7 +1952,7 @@ done:
113487 return ret;
113488 }
113489
113490-static struct nf_sockopt_ops so_set __read_mostly = {
113491+static struct nf_sockopt_ops so_set = {
113492 .pf = PF_INET,
113493 .get_optmin = SO_IP_SET,
113494 .get_optmax = SO_IP_SET + 1,
113495diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
113496index b0f7b62..0541842 100644
113497--- a/net/netfilter/ipvs/ip_vs_conn.c
113498+++ b/net/netfilter/ipvs/ip_vs_conn.c
113499@@ -572,7 +572,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
113500 /* Increase the refcnt counter of the dest */
113501 ip_vs_dest_hold(dest);
113502
113503- conn_flags = atomic_read(&dest->conn_flags);
113504+ conn_flags = atomic_read_unchecked(&dest->conn_flags);
113505 if (cp->protocol != IPPROTO_UDP)
113506 conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
113507 flags = cp->flags;
113508@@ -922,7 +922,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,
113509
113510 cp->control = NULL;
113511 atomic_set(&cp->n_control, 0);
113512- atomic_set(&cp->in_pkts, 0);
113513+ atomic_set_unchecked(&cp->in_pkts, 0);
113514
113515 cp->packet_xmit = NULL;
113516 cp->app = NULL;
113517@@ -1229,7 +1229,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
113518
113519 /* Don't drop the entry if its number of incoming packets is not
113520 located in [0, 8] */
113521- i = atomic_read(&cp->in_pkts);
113522+ i = atomic_read_unchecked(&cp->in_pkts);
113523 if (i > 8 || i < 0) return 0;
113524
113525 if (!todrop_rate[i]) return 0;
113526diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
113527index b87ca32..76c7799 100644
113528--- a/net/netfilter/ipvs/ip_vs_core.c
113529+++ b/net/netfilter/ipvs/ip_vs_core.c
113530@@ -568,7 +568,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
113531 ret = cp->packet_xmit(skb, cp, pd->pp, iph);
113532 /* do not touch skb anymore */
113533
113534- atomic_inc(&cp->in_pkts);
113535+ atomic_inc_unchecked(&cp->in_pkts);
113536 ip_vs_conn_put(cp);
113537 return ret;
113538 }
113539@@ -1723,7 +1723,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
113540 if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
113541 pkts = sysctl_sync_threshold(ipvs);
113542 else
113543- pkts = atomic_add_return(1, &cp->in_pkts);
113544+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113545
113546 if (ipvs->sync_state & IP_VS_STATE_MASTER)
113547 ip_vs_sync_conn(net, cp, pkts);
113548diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
113549index ed99448..3ba6cad 100644
113550--- a/net/netfilter/ipvs/ip_vs_ctl.c
113551+++ b/net/netfilter/ipvs/ip_vs_ctl.c
113552@@ -799,7 +799,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
113553 */
113554 ip_vs_rs_hash(ipvs, dest);
113555 }
113556- atomic_set(&dest->conn_flags, conn_flags);
113557+ atomic_set_unchecked(&dest->conn_flags, conn_flags);
113558
113559 /* bind the service */
113560 old_svc = rcu_dereference_protected(dest->svc, 1);
113561@@ -1664,7 +1664,7 @@ proc_do_sync_ports(struct ctl_table *table, int write,
113562 * align with netns init in ip_vs_control_net_init()
113563 */
113564
113565-static struct ctl_table vs_vars[] = {
113566+static ctl_table_no_const vs_vars[] __read_only = {
113567 {
113568 .procname = "amemthresh",
113569 .maxlen = sizeof(int),
113570@@ -1999,7 +1999,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
113571 " %-7s %-6d %-10d %-10d\n",
113572 &dest->addr.in6,
113573 ntohs(dest->port),
113574- ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
113575+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
113576 atomic_read(&dest->weight),
113577 atomic_read(&dest->activeconns),
113578 atomic_read(&dest->inactconns));
113579@@ -2010,7 +2010,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
113580 "%-7s %-6d %-10d %-10d\n",
113581 ntohl(dest->addr.ip),
113582 ntohs(dest->port),
113583- ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
113584+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
113585 atomic_read(&dest->weight),
113586 atomic_read(&dest->activeconns),
113587 atomic_read(&dest->inactconns));
113588@@ -2499,7 +2499,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
113589
113590 entry.addr = dest->addr.ip;
113591 entry.port = dest->port;
113592- entry.conn_flags = atomic_read(&dest->conn_flags);
113593+ entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
113594 entry.weight = atomic_read(&dest->weight);
113595 entry.u_threshold = dest->u_threshold;
113596 entry.l_threshold = dest->l_threshold;
113597@@ -3040,7 +3040,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
113598 if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
113599 nla_put_be16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
113600 nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
113601- (atomic_read(&dest->conn_flags) &
113602+ (atomic_read_unchecked(&dest->conn_flags) &
113603 IP_VS_CONN_F_FWD_MASK)) ||
113604 nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
113605 atomic_read(&dest->weight)) ||
113606@@ -3675,7 +3675,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
113607 {
113608 int idx;
113609 struct netns_ipvs *ipvs = net_ipvs(net);
113610- struct ctl_table *tbl;
113611+ ctl_table_no_const *tbl;
113612
113613 atomic_set(&ipvs->dropentry, 0);
113614 spin_lock_init(&ipvs->dropentry_lock);
113615diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
113616index 127f140..553d652 100644
113617--- a/net/netfilter/ipvs/ip_vs_lblc.c
113618+++ b/net/netfilter/ipvs/ip_vs_lblc.c
113619@@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
113620 * IPVS LBLC sysctl table
113621 */
113622 #ifdef CONFIG_SYSCTL
113623-static struct ctl_table vs_vars_table[] = {
113624+static ctl_table_no_const vs_vars_table[] __read_only = {
113625 {
113626 .procname = "lblc_expiration",
113627 .data = NULL,
113628diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
113629index 2229d2d..b32b785 100644
113630--- a/net/netfilter/ipvs/ip_vs_lblcr.c
113631+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
113632@@ -289,7 +289,7 @@ struct ip_vs_lblcr_table {
113633 * IPVS LBLCR sysctl table
113634 */
113635
113636-static struct ctl_table vs_vars_table[] = {
113637+static ctl_table_no_const vs_vars_table[] __read_only = {
113638 {
113639 .procname = "lblcr_expiration",
113640 .data = NULL,
113641diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
113642index d93ceeb..4556144 100644
113643--- a/net/netfilter/ipvs/ip_vs_sync.c
113644+++ b/net/netfilter/ipvs/ip_vs_sync.c
113645@@ -609,7 +609,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
113646 cp = cp->control;
113647 if (cp) {
113648 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
113649- pkts = atomic_add_return(1, &cp->in_pkts);
113650+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113651 else
113652 pkts = sysctl_sync_threshold(ipvs);
113653 ip_vs_sync_conn(net, cp->control, pkts);
113654@@ -771,7 +771,7 @@ control:
113655 if (!cp)
113656 return;
113657 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
113658- pkts = atomic_add_return(1, &cp->in_pkts);
113659+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113660 else
113661 pkts = sysctl_sync_threshold(ipvs);
113662 goto sloop;
113663@@ -902,7 +902,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
113664
113665 if (opt)
113666 memcpy(&cp->in_seq, opt, sizeof(*opt));
113667- atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
113668+ atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
113669 cp->state = state;
113670 cp->old_state = cp->state;
113671 /*
113672diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
113673index 3aedbda..6a63567 100644
113674--- a/net/netfilter/ipvs/ip_vs_xmit.c
113675+++ b/net/netfilter/ipvs/ip_vs_xmit.c
113676@@ -1214,7 +1214,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
113677 else
113678 rc = NF_ACCEPT;
113679 /* do not touch skb anymore */
113680- atomic_inc(&cp->in_pkts);
113681+ atomic_inc_unchecked(&cp->in_pkts);
113682 goto out;
113683 }
113684
113685@@ -1307,7 +1307,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
113686 else
113687 rc = NF_ACCEPT;
113688 /* do not touch skb anymore */
113689- atomic_inc(&cp->in_pkts);
113690+ atomic_inc_unchecked(&cp->in_pkts);
113691 goto out;
113692 }
113693
113694diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
113695index a4b5e2a..13b1de3 100644
113696--- a/net/netfilter/nf_conntrack_acct.c
113697+++ b/net/netfilter/nf_conntrack_acct.c
113698@@ -62,7 +62,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
113699 #ifdef CONFIG_SYSCTL
113700 static int nf_conntrack_acct_init_sysctl(struct net *net)
113701 {
113702- struct ctl_table *table;
113703+ ctl_table_no_const *table;
113704
113705 table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
113706 GFP_KERNEL);
113707diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
113708index 13fad86..18c984c 100644
113709--- a/net/netfilter/nf_conntrack_core.c
113710+++ b/net/netfilter/nf_conntrack_core.c
113711@@ -1733,6 +1733,10 @@ void nf_conntrack_init_end(void)
113712 #define DYING_NULLS_VAL ((1<<30)+1)
113713 #define TEMPLATE_NULLS_VAL ((1<<30)+2)
113714
113715+#ifdef CONFIG_GRKERNSEC_HIDESYM
113716+static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
113717+#endif
113718+
113719 int nf_conntrack_init_net(struct net *net)
113720 {
113721 int ret = -ENOMEM;
113722@@ -1758,7 +1762,11 @@ int nf_conntrack_init_net(struct net *net)
113723 if (!net->ct.stat)
113724 goto err_pcpu_lists;
113725
113726+#ifdef CONFIG_GRKERNSEC_HIDESYM
113727+ net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08x", atomic_inc_return_unchecked(&conntrack_cache_id));
113728+#else
113729 net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
113730+#endif
113731 if (!net->ct.slabname)
113732 goto err_slabname;
113733
113734diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
113735index 4e78c57..ec8fb74 100644
113736--- a/net/netfilter/nf_conntrack_ecache.c
113737+++ b/net/netfilter/nf_conntrack_ecache.c
113738@@ -264,7 +264,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
113739 #ifdef CONFIG_SYSCTL
113740 static int nf_conntrack_event_init_sysctl(struct net *net)
113741 {
113742- struct ctl_table *table;
113743+ ctl_table_no_const *table;
113744
113745 table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
113746 GFP_KERNEL);
113747diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
113748index bd9d315..989947e 100644
113749--- a/net/netfilter/nf_conntrack_helper.c
113750+++ b/net/netfilter/nf_conntrack_helper.c
113751@@ -57,7 +57,7 @@ static struct ctl_table helper_sysctl_table[] = {
113752
113753 static int nf_conntrack_helper_init_sysctl(struct net *net)
113754 {
113755- struct ctl_table *table;
113756+ ctl_table_no_const *table;
113757
113758 table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
113759 GFP_KERNEL);
113760diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
113761index b65d586..beec902 100644
113762--- a/net/netfilter/nf_conntrack_proto.c
113763+++ b/net/netfilter/nf_conntrack_proto.c
113764@@ -52,7 +52,7 @@ nf_ct_register_sysctl(struct net *net,
113765
113766 static void
113767 nf_ct_unregister_sysctl(struct ctl_table_header **header,
113768- struct ctl_table **table,
113769+ ctl_table_no_const **table,
113770 unsigned int users)
113771 {
113772 if (users > 0)
113773diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
113774index fc823fa..8311af3 100644
113775--- a/net/netfilter/nf_conntrack_standalone.c
113776+++ b/net/netfilter/nf_conntrack_standalone.c
113777@@ -468,7 +468,7 @@ static struct ctl_table nf_ct_netfilter_table[] = {
113778
113779 static int nf_conntrack_standalone_init_sysctl(struct net *net)
113780 {
113781- struct ctl_table *table;
113782+ ctl_table_no_const *table;
113783
113784 table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
113785 GFP_KERNEL);
113786diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
113787index 7a394df..bd91a8a 100644
113788--- a/net/netfilter/nf_conntrack_timestamp.c
113789+++ b/net/netfilter/nf_conntrack_timestamp.c
113790@@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
113791 #ifdef CONFIG_SYSCTL
113792 static int nf_conntrack_tstamp_init_sysctl(struct net *net)
113793 {
113794- struct ctl_table *table;
113795+ ctl_table_no_const *table;
113796
113797 table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
113798 GFP_KERNEL);
113799diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
113800index 675d12c..b36e825 100644
113801--- a/net/netfilter/nf_log.c
113802+++ b/net/netfilter/nf_log.c
113803@@ -386,7 +386,7 @@ static const struct file_operations nflog_file_ops = {
113804
113805 #ifdef CONFIG_SYSCTL
113806 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
113807-static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
113808+static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
113809
113810 static int nf_log_proc_dostring(struct ctl_table *table, int write,
113811 void __user *buffer, size_t *lenp, loff_t *ppos)
113812@@ -417,13 +417,15 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
113813 rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
113814 mutex_unlock(&nf_log_mutex);
113815 } else {
113816+ ctl_table_no_const nf_log_table = *table;
113817+
113818 mutex_lock(&nf_log_mutex);
113819 logger = nft_log_dereference(net->nf.nf_loggers[tindex]);
113820 if (!logger)
113821- table->data = "NONE";
113822+ nf_log_table.data = "NONE";
113823 else
113824- table->data = logger->name;
113825- r = proc_dostring(table, write, buffer, lenp, ppos);
113826+ nf_log_table.data = logger->name;
113827+ r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
113828 mutex_unlock(&nf_log_mutex);
113829 }
113830
113831diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
113832index c68c1e5..8b5d670 100644
113833--- a/net/netfilter/nf_sockopt.c
113834+++ b/net/netfilter/nf_sockopt.c
113835@@ -43,7 +43,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
113836 }
113837 }
113838
113839- list_add(&reg->list, &nf_sockopts);
113840+ pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
113841 out:
113842 mutex_unlock(&nf_sockopt_mutex);
113843 return ret;
113844@@ -53,7 +53,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
113845 void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
113846 {
113847 mutex_lock(&nf_sockopt_mutex);
113848- list_del(&reg->list);
113849+ pax_list_del((struct list_head *)&reg->list);
113850 mutex_unlock(&nf_sockopt_mutex);
113851 }
113852 EXPORT_SYMBOL(nf_unregister_sockopt);
113853diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
113854index 11d85b3..7fcc420 100644
113855--- a/net/netfilter/nfnetlink_log.c
113856+++ b/net/netfilter/nfnetlink_log.c
113857@@ -83,7 +83,7 @@ static int nfnl_log_net_id __read_mostly;
113858 struct nfnl_log_net {
113859 spinlock_t instances_lock;
113860 struct hlist_head instance_table[INSTANCE_BUCKETS];
113861- atomic_t global_seq;
113862+ atomic_unchecked_t global_seq;
113863 };
113864
113865 static struct nfnl_log_net *nfnl_log_pernet(struct net *net)
113866@@ -563,7 +563,7 @@ __build_packet_message(struct nfnl_log_net *log,
113867 /* global sequence number */
113868 if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
113869 nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
113870- htonl(atomic_inc_return(&log->global_seq))))
113871+ htonl(atomic_inc_return_unchecked(&log->global_seq))))
113872 goto nla_put_failure;
113873
113874 if (data_len) {
113875diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
113876index 65f3e2b..2e9d6a0 100644
113877--- a/net/netfilter/nft_compat.c
113878+++ b/net/netfilter/nft_compat.c
113879@@ -317,14 +317,7 @@ static void nft_match_eval(const struct nft_expr *expr,
113880 return;
113881 }
113882
113883- switch(ret) {
113884- case true:
113885- data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
113886- break;
113887- case false:
113888- data[NFT_REG_VERDICT].verdict = NFT_BREAK;
113889- break;
113890- }
113891+ data[NFT_REG_VERDICT].verdict = ret ? NFT_CONTINUE : NFT_BREAK;
113892 }
113893
113894 static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
113895diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
113896new file mode 100644
113897index 0000000..c566332
113898--- /dev/null
113899+++ b/net/netfilter/xt_gradm.c
113900@@ -0,0 +1,51 @@
113901+/*
113902+ * gradm match for netfilter
113903