Linus Torvalds fbfd1d2862 ipc: fix double sem unlock in semctl error path ...

Fix another ipc locking buglet introduced by the scalability patches:
when semctl_down() was changed to delay the semaphore locking, one error
path for security_sem_semctl() went through the semaphore unlock logic
even though the semaphore had never been locked.

Introduced by commit 16df3674ef ("ipc,sem: do not hold ipc lock more
than necessary")

Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-05-04 17:19:59 -07:00

..

compat_mq.c

ipc: initialize structure memory to zero for compat functions

2010-10-27 18:03:13 -07:00

compat.c

get rid of union semop in sys_semctl(2) arguments

2013-03-05 15:14:16 -05:00

ipc_sysctl.c

ipc: add sysctl to specify desired next object id

2013-01-04 16:11:45 -08:00

ipcns_notifier.c

ipc: do not use a negative value to re-enable msgmni automatic recomputing

2008-07-25 10:53:42 -07:00

Makefile

Add generic sys_ipc wrapper

2010-03-12 15:52:32 -08:00

mq_sysctl.c

mqueue: separate mqueue default value from maximum value

2012-05-31 17:49:31 -07:00

mqueue.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-03-28 13:43:46 -07:00

msg.c

ipc/msg.c: use list_for_each_entry_[safe] for list traversing

2013-05-01 08:12:58 -07:00

msgutil.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

namespace.c

proc: Split the namespace stuff out into linux/proc_ns.h

2013-05-01 17:29:39 -04:00

sem.c

ipc: fix double sem unlock in semctl error path

2013-05-04 17:19:59 -07:00

shm.c

ipc: sysv shared memory limited to 8TiB

2013-05-01 08:12:58 -07:00

syscall.c

get rid of union semop in sys_semctl(2) arguments

2013-03-05 15:14:16 -05:00

util.c

ipc_schedule_free() can do vfree() directly now

2013-05-02 08:03:33 -07:00

util.h

ipc,sem: fine grained locking for semtimedop

2013-05-01 08:12:58 -07:00