From: Manfred Spraul <manfred@colorfullife.com>
Date: Fri, 6 Jun 2014 21:37:41 +0000 (-0700)
Subject: ipc/shm.c: check for integer overflow during shmget.
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~91^2~4^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1376327ce1f790070ec7128b285e2d8965e760a5;p=pandora-kernel.git

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>
---

Reading git-diff-tree failed