Davidlohr Bueso 92c159863d ipc/sem.c: prevent queue.status tearing in semop ...

[ Upstream commit f075faa300acc4f6301e348acde0a4580ed5f77c ]

In order for load/store tearing prevention to work, _all_ accesses to
the variable in question need to be done around READ and WRITE_ONCE()
macros.  Ensure everyone does so for q->status variable for
semtimedop().

Link: http://lkml.kernel.org/r/20180717052654.676-1-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-05 09:26:30 +02:00

..

compat.c

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

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

ipc_sysctl.c

ipc/msg: increase MSGMNI, remove scaling

2014-12-13 12:42:52 -08:00

Makefile

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

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

mq_sysctl.c

ipc: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

mqueue.c

ipc: mqueue: Replace timespec with timespec64

2017-09-03 20:21:24 -04:00

msg.c

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

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

msgutil.c

ipc: convert ipc_namespace.count from atomic_t to refcount_t

2017-09-08 18:26:51 -07:00

namespace.c

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

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

sem.c

ipc/sem.c: prevent queue.status tearing in semop

2018-09-05 09:26:30 +02:00

shm.c

ipc/shm: fix shmat() nil address after round-down when remapping

2018-05-30 07:51:49 +02:00

syscall.c

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

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

util.c

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

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

util.h

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

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