Subject: [merged] ipc-shmc-check-for-integer-overflow-during-shmget.patch removed from -mm tree To: manfred@xxxxxxxxxxxxxxxx,davidlohr@xxxxxx,kosaki.motohiro@xxxxxxxxxxxxxx,mtk.manpages@xxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Mon, 09 Jun 2014 12:37:22 -0700 The patch titled Subject: ipc/shm.c: check for integer overflow during shmget. has been removed from the -mm tree. Its filename was ipc-shmc-check-for-integer-overflow-during-shmget.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx> Subject: 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@xxxxxxxxxxxxxxxx> Acked-by: Davidlohr Bueso <davidlohr@xxxxxx> Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Acked-by: Michael Kerrisk <mtk.manpages@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- ipc/shm.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN ipc/shm.c~ipc-shmc-check-for-integer-overflow-during-shmget ipc/shm.c --- a/ipc/shm.c~ipc-shmc-check-for-integer-overflow-during-shmget +++ a/ipc/shm.c @@ -493,6 +493,9 @@ static int newseg(struct ipc_namespace * if (size < SHMMIN || size > ns->shm_ctlmax) return -EINVAL; + if (numpages << PAGE_SHIFT < size) + return -ENOSPC; + if (ns->shm_tot + numpages < ns->shm_tot || ns->shm_tot + numpages > ns->shm_ctlall) return -ENOSPC; _ Patches currently in -mm which might be from manfred@xxxxxxxxxxxxxxxx are origin.patch slab-leaks3-default-y.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html