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| author |   Manfred Spraul <manfred@colorfullife.com> | 2014-06-06 14:37:41 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 16:08:14 -0700 |
| commit | 1376327ce1f790070ec7128b285e2d8965e760a5 (patch) | |
| tree | 6d6c8b14231b487e476e0aa84775173be45ff455 /include/linux/shm.h | |
| parent | ipc/shm.c: check for overflows of shm_tot (diff) | |
| download | wireguard-linux-1376327ce1f790070ec7128b285e2d8965e760a5.tar.xz wireguard-linux-1376327ce1f790070ec7128b285e2d8965e760a5.zip | |
ipc/shm.c: check for integer overflow during shmget.
SHMMAX is the upper limit for the size of a shared memory segment, counted
in bytes. The actual allocation is that size, rounded up to the next full
page.
Add a check that prevents the creation of segments where the rounded up
size causes an integer overflow.
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>
Diffstat (limited to 'include/linux/shm.h')
0 files changed, 0 insertions, 0 deletions