Eric Biggers 557f16c7fe crypto: x86/chacha20 - avoid sleeping with preemption disabled ...

In chacha20-simd, clear the MAY_SLEEP flag in the blkcipher_desc to
prevent sleeping with preemption disabled, under kernel_fpu_begin().

This was fixed upstream incidentally by a large refactoring,
commit 9ae433bc79 ("crypto: chacha20 - convert generic and x86
versions to skcipher").  But syzkaller easily trips over this when
running on older kernels, as it's easily reachable via AF_ALG.
Therefore, this patch makes the minimal fix for older kernels.

Fixes: c9320b6dcb ("crypto: chacha20 - Add a SSSE3 SIMD variant for x86_64")
Cc: linux-crypto@vger.kernel.org
Cc: Martin Willi <martin@strongswan.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-01-13 10:05:32 +01:00

..

alpha

arch/alpha, termios: implement BOTHER, IBSHIFT and termios2

2018-11-21 09:27:42 +01:00

arc

ARC: io.h: Implement reads{x}()/writes{x}()

2018-12-21 14:09:52 +01:00

arm

ARM: imx: update the cpu power up timing setting on i.mx6sx

2019-01-13 10:05:31 +01:00

arm64

arm64: remove no-op -p linker flag

2018-12-01 09:46:36 +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

mm: replace get_user_pages() write/force parameters with gup_flags

2018-12-17 21:55:16 +01:00

frv

futex: Remove duplicated code and fix undefined behaviour

2018-05-26 08:48:50 +02:00

h8300

h8300/ptrace: Fix incorrect register transfer count

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

hexagon

hexagon: modify ffs() and fls() to return int

2018-10-10 08:52:12 +02:00

ia64

mm: replace get_user_pages() write/force parameters with gup_flags

2018-12-17 21:55:16 +01:00

m32r

m32r: fix __get_user()

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

m68k

m68k: fix "bad page state" oops on ColdFire boot

2018-08-24 13:26:57 +02:00

metag

metag/uaccess: Check access_ok in strncpy_from_user

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

microblaze

microblaze: Fix simpleImage format generation

2018-08-06 16:24:39 +02:00

mips

MIPS: Align kernel load address to 64KB

2019-01-13 10:05:31 +01:00

mn10300

mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy

2018-02-16 20:09:47 +01:00

nios2

nios2: reserve boot memory for device tree

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

openrisc

kthread: fix boot hang (regression) on MIPS/OpenRISC

2018-09-19 22:48:55 +02:00

parisc

parisc: Fix map_pages() to not overwrite existing pte entries

2018-11-21 09:27:30 +01:00

powerpc

powerpc: Fix COFF zImage booting on old powermacs

2019-01-13 10:05:31 +01:00

s390

mm: replace get_user_pages_unlocked() write/force parameters with gup_flags

2018-12-17 21:55:16 +01:00

score

score: fix copy_from_user() and friends

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

sh

mm: replace get_user_pages_unlocked() write/force parameters with gup_flags

2018-12-17 21:55:16 +01:00

sparc

mm: replace get_user_pages_unlocked() write/force parameters with gup_flags

2018-12-17 21:55:16 +01:00

tile

futex: Remove duplicated code and fix undefined behaviour

2018-05-26 08:48:50 +02:00

um

um: Give start_idle_thread() a return code

2018-11-27 16:08:00 +01:00

unicore32

Merge tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

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

x86

crypto: x86/chacha20 - avoid sleeping with preemption disabled

2019-01-13 10:05:32 +01:00

xtensa

xtensa: fix coprocessor context offset definitions

2018-12-13 09:21:26 +01:00

.gitignore

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Kconfig

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