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authorManfred Spraul <manfred@colorfullife.com>2014-06-07 01:37:41 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-07 03:08:14 +0400
commit1376327ce1f790070ec7128b285e2d8965e760a5 (patch)
tree6d6c8b14231b487e476e0aa84775173be45ff455 /include/linux/shm.h
parent09c6eb1f651dad601f02435bbd79734954960c42 (diff)
downloadlinux-1376327ce1f790070ec7128b285e2d8965e760a5.tar.xz
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')
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