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Message-Id: <1341747464-1772-4-git-send-email-Julia.Lawall@lip6.fr> Date: Sun, 8 Jul 2012 13:37:40 +0200 From: Julia Lawall <Julia.Lawall@...6.fr> To: Christoph Lameter <cl@...ux-foundation.org> Cc: kernel-janitors@...r.kernel.org, Pekka Enberg <penberg@...nel.org>, Matt Mackall <mpm@...enic.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: [PATCH 3/7] mm/slub.c: remove invalid reference to list iterator variable From: Julia Lawall <Julia.Lawall@...6.fr> If list_for_each_entry, etc complete a traversal of the list, the iterator variable ends up pointing to an address at an offset from the list head, and not a meaningful structure. Thus this value should not be used after the end of the iterator. The patch replaces s->name by al->name, which is referenced nearby. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr> --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index cc4ed03..ef9bf01 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5395,7 +5395,7 @@ static int __init slab_sysfs_init(void) err = sysfs_slab_alias(al->s, al->name); if (err) printk(KERN_ERR "SLUB: Unable to add boot slab alias" - " %s to sysfs\n", s->name); + " %s to sysfs\n", al->name); kfree(al); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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