linux/ipc
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
Makefile
mq_sysctl.c
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
namespace.c
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
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