Andrey Ryabinin b17b901f0f x86/kasan: Write protect kasan zero shadow ...

commit 063fb3e56f6dd29b2633b678b837e1d904200e6f upstream.

After kasan_init() executed, no one is allowed to write to kasan_zero_page,
so write protect it.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/1452516679-32040-3-git-send-email-aryabinin@virtuozzo.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-01-10 09:27:08 +01:00

..

alpha

alpha: fix build failures

2017-12-25 14:22:16 +01:00

arc

ARC: Re-enable MMU upon Machine Check exception

2017-09-27 11:00:16 +02:00

arm

ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory

2017-12-25 14:22:13 +01:00

arm64

arm64: Initialise high_memory global variable earlier

2017-12-25 14:22:08 +01:00

avr32

avr32: off by one in at32_init_pio()

2016-10-07 15:23:45 +02:00

blackfin

pinctrl: adi2: Fix Kconfig build problem

2017-12-20 10:05:00 +01:00

c6x

c6x/ptrace: Remove useless PTRACE_SETREGSET implementation

2017-03-31 09:49:53 +02:00

cris

cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected

2017-01-12 11:22:48 +01:00

frv

mm: larger stack guard gap, between vmas

2017-06-26 07:13:11 +02:00

h8300

h8300/ptrace: Fix incorrect register transfer count

2017-03-31 09:49:53 +02:00

hexagon

hexagon: fix strncpy_from_user() error return

2016-09-24 10:07:44 +02:00

ia64

ia64: copy_from_user() should zero the destination on access_ok() failure

2016-09-24 10:07:46 +02:00

m32r

m32r: fix __get_user()

2016-09-24 10:07:43 +02:00

m68k

m68k: Fix ndelay() macro

2016-12-15 08:49:23 -08:00

metag

metag/uaccess: Check access_ok in strncpy_from_user

2017-05-25 14:30:16 +02:00

microblaze

microblaze: fix copy_from_user()

2016-09-24 10:07:43 +02:00

mips

MIPS: math-emu: Fix final emulation phase for certain instructions

2017-12-25 14:22:15 +01:00

mn10300

mn10300: copy_from_user() should zero on access_ok() failure...

2016-09-24 10:07:45 +02:00

nios2

nios2: reserve boot memory for device tree

2017-04-12 12:38:34 +02:00

openrisc

openrisc: fix issue handling 8 byte get_user calls

2017-12-20 10:04:54 +01:00

parisc

parisc: Fix validity check of pointer size argument in new CAS implementation

2017-11-30 08:37:24 +00:00

powerpc

powerpc/perf: Dereference BHRB entries safely

2018-01-02 20:33:21 +01:00

s390

s390: always save and restore all registers on context switch

2017-12-16 10:33:56 +01:00

score

score: fix copy_from_user() and friends

2016-09-24 10:07:44 +02:00

sh

serial: sh-sci: Fix register offsets for the IRDA serial port

2017-11-15 17:13:10 +01:00

sparc

sparc64/mm: set fields in deferred pages

2017-12-16 10:33:55 +01:00

tile

mm: larger stack guard gap, between vmas

2017-06-26 07:13:11 +02:00

um

um: Don't discard .text.exit section

2016-09-07 08:32:38 +02:00

unicore32

pwm: Changes for v4.4-rc1

2015-11-11 09:16:10 -08:00

x86

x86/kasan: Write protect kasan zero shadow

2018-01-10 09:27:08 +01:00

xtensa

mm: larger stack guard gap, between vmas

2017-06-26 07:13:11 +02:00

.gitignore

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Kconfig

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