Kees Cook 6337067b2a task_struct: only use anon struct under randstruct plugin ...

commit 2cfe0d3009 upstream.

The original intent for always adding the anonymous struct in
task_struct was to make sure we had compiler coverage.

However, this caused pathological padding of 40 bytes at the start of
task_struct.  Instead, move the anonymous struct to being only used when
struct layout randomization is enabled.

Link: http://lkml.kernel.org/r/20180327213609.GA2964@beast
Fixes: 29e48ce87f ("task_struct: Allow randomized")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-24 09:36:22 +02:00

..

acpi

ACPI / EC: Fix regression related to PM ops support in ECDT device

2017-12-05 11:26:33 +01:00

asm-generic

mm/vmalloc: add interfaces to free unmapped page table

2018-03-28 18:24:38 +02:00

clocksource

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

crypto

crypto: af_alg - Fix race around ctx->rcvused by making it atomic_t

2018-03-03 10:24:29 +01:00

drm

drm/syncobj: Stop reusing the same struct file for all syncobj -> fd

2018-03-28 18:24:47 +02:00

dt-bindings

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

keys

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kvm

arm/arm64: KVM: Turn kvm_psci_version into a static inline

2018-02-16 20:22:55 +01:00

linux

task_struct: only use anon struct under randstruct plugin

2018-04-24 09:36:22 +02:00

math-emu

…

media

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

memory

…

misc

…

net

Bluetooth: Fix connection if directed advertising and privacy is used

2018-04-19 08:56:19 +02:00

pcmcia

…

ras

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rdma

RDMA/ucma: Introduce safer rdma_addr_size() variants

2018-04-08 14:26:29 +02:00

scsi

scsi: core: Avoid that ATA error handling can trigger a kernel hang or oops

2018-03-15 10:54:29 +01:00

soc

…

sound

ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization

2017-11-30 08:40:49 +00:00

target

target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK

2017-11-30 08:40:51 +00:00

trace

mmc: core: Fix tracepoint print of blk_addr and blksz

2018-03-28 18:24:30 +02:00

uapi

serial: 8250: Add Nuvoton NPCM UART

2018-04-08 14:26:30 +02:00

video

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xen

xen/balloon: Mark unallocated host memory as UNUSABLE

2018-03-03 10:24:28 +01:00