Manfred Spraul 09c6eb1f65 ipc/shm.c: check for overflows of shm_tot ...

shm_tot counts the total number of pages used by shm segments.

If SHMALL is ULONG_MAX (or nearly ULONG_MAX), then the number can
overflow.  Subsequent calls to shmctl(,SHM_INFO,) would return wrong
values for shm_tot.

The patch adds a detection for overflows.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2014-06-06 16:08:14 -07:00

..

compat_mq.c

ipc, kernel: use Linux headers

2014-06-06 16:08:14 -07:00

compat.c

ipc, kernel: use Linux headers

2014-06-06 16:08:14 -07:00

ipc_sysctl.c

ipc: use device_initcall

2014-04-07 16:36:11 -07:00

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

ipc,mqueue: remove limits for the amount of system-wide queues

2014-02-25 15:25:45 -08:00

mqueue.c

ipc: use device_initcall

2014-04-07 16:36:11 -07:00

msg.c

ipc, kernel: clear whitespace

2014-06-06 16:08:14 -07:00

msgutil.c

ipc, msg: fix message length check for negative values

2013-11-13 12:09:36 +09:00

namespace.c

ipc: drop ipc_lock_by_ptr

2013-09-11 15:59:44 -07:00

sem.c

ipc, kernel: clear whitespace

2014-06-06 16:08:14 -07:00

shm.c

ipc/shm.c: check for overflows of shm_tot

2014-06-06 16:08:14 -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, kernel: clear whitespace

2014-06-06 16:08:14 -07:00

util.h

ipc, kernel: clear whitespace

2014-06-06 16:08:14 -07:00