Commit 8a3d271d authored Sep 03, 2009 by Eric Dumazet Committed by Pekka Enberg Sep 14, 2009

slub: fix slab_pad_check()



When SLAB_POISON is used and slab_pad_check() finds an overwrite of the
slab padding, we call restore_bytes() on the whole slab, not only
on the padding.

Acked-by: Christoph Lameer <cl@linux-foundation.org>
Reported-by: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

parent 5788d8ad

mm/slub.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -655,7 +655,7 @@ static int slab_pad_check(struct kmem_cache s, struct page page)
		slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
		print_section("Padding", end - remainder, remainder);

		restore_bytes(s, "slab padding", POISON_INUSE, start, end);
		restore_bytes(s, "slab padding", POISON_INUSE, end - remainder, end);
		return 0;
		}