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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>
This commit is contained in:
Eric Dumazet 2009-09-03 16:08:06 +02:00 committed by Pekka Enberg
parent 5788d8ad6c
commit 8a3d271deb
1 changed files with 1 additions and 1 deletions
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mm/slub.c
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@ -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); slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
print_section("Padding", end - remainder, remainder); 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; return 0;
} }