Laura Abbott 93d022e256 x86/mm/32: Set the '__vmalloc_start_set' flag in initmem_init() ...

commit 861ce4a324 upstream.

'__vmalloc_start_set' currently only gets set in initmem_init() when
!CONFIG_NEED_MULTIPLE_NODES. This breaks detection of vmalloc address
with virt_addr_valid() with CONFIG_NEED_MULTIPLE_NODES=y, causing
a kernel crash:

  [mm/usercopy] 517e1fbeb6: kernel BUG at arch/x86/mm/physaddr.c:78!

Set '__vmalloc_start_set' appropriately for that case as well.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: dc16ecf7fd ("x86-32: use specific __vmalloc_start_set flag in __virt_addr_valid")
Link: http://lkml.kernel.org/r/1494278596-30373-1-git-send-email-labbott@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-06-26 07:13:09 +02:00

..

alpha

osf_wait4(): fix infoleak

2017-05-25 14:30:17 +02:00

arc

ARCv2: save r30 on kernel entry as gcc uses it for code-gen

2017-05-02 21:19:56 -07:00

arm

ARM: dts: imx6dl: Fix the VDD_ARM_CAP voltage for 396MHz operation

2017-06-17 06:39:35 +02:00

arm64

arm64: ensure extension of smp_store_release value

2017-06-14 13:16:27 +02:00

avr32

avr32: off by one in at32_init_pio()

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

blackfin

net: smc91x: fix SMC accesses

2016-09-30 10:18:37 +02:00

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

frv: fix clear_user()

2016-09-24 10:07:44 +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: R2-on-R6 MULTU/MADDU/MSUBU emulation bugfix

2017-05-14 13:32:57 +02:00

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 the fix of copy_from_user()

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

parisc

parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header

2017-02-01 08:30:53 +01:00

powerpc

powerpc/hotplug-mem: Fix missing endian conversion of aa_index

2017-06-14 13:16:25 +02:00

s390

s390/kvm: do not rely on the ILC on kvm host protection fauls

2017-06-17 06:39:38 +02:00

score

score: fix copy_from_user() and friends

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

sh

sh: fix copy_from_user()

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

sparc

sparc64: make string buffers large enough

2017-06-17 06:39:39 +02:00

tile

tile/ptrace: Preserve previous registers for short regset write

2017-02-01 08:30:52 +01:00

um

um: Don't discard .text.exit section

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

unicore32

…

x86

x86/mm/32: Set the '__vmalloc_start_set' flag in initmem_init()

2017-06-26 07:13:09 +02:00

xtensa

xtensa: don't use linux IRQ #0

2017-06-17 06:39:38 +02:00

.gitignore

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Kconfig

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