Linus Torvalds b9a5322779 Initialize msg/shm IPC objects before doing ipc_addid() ... As reported by Dmitry Vyukov, we really shouldn't do ipc_addid() before having initialized the IPC object state. Yes, we initialize the IPC object in a locked state, but with all the lockless RCU lookup work, that IPC object lock no longer means that the state cannot be seen. We already did this for the IPC semaphore code (see commit e8577d1f03: "ipc/sem.c: fully initialize sem_array before making it visible") but we clearly forgot about msg and shm. Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-09-30 12:48:40 -04:00
..
compat_mq.c	ipc, kernel: use Linux headers	2014-06-06 16:08:14 -07:00
compat.c	ipc: resolve shadow warnings	2014-10-14 02:18:23 +02:00
ipc_sysctl.c	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
Makefile	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
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: modify message queue accounting to not take kernel data structures into account	2015-08-07 04:39:39 +03:00
msg.c	Initialize msg/shm IPC objects before doing ipc_addid()	2015-09-30 12:48:40 -04:00
msgutil.c	ipc: convert invalid scenarios to use WARN_ON	2015-09-10 13:29:01 -07:00
namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
sem.c	ipc/sem.c: update/correct memory barriers	2015-08-14 15:56:32 -07:00
shm.c	Initialize msg/shm IPC objects before doing ipc_addid()	2015-09-30 12:48:40 -04:00
syscall.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
util.c	Initialize msg/shm IPC objects before doing ipc_addid()	2015-09-30 12:48:40 -04:00
util.h	ipc: rename ipc_obtain_object	2015-06-30 19:44:58 -07:00