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Date: Wed, 22 Aug 2007 10:07:14 +0800 From: Shaohua Li <shaohua.li@...el.com> To: lkml <linux-kernel@...r.kernel.org> Cc: Andrew Morton <akpm@...ux-foundation.org>, clameter@....com Subject: [PATCH] get_nodes should ignore invalid node get_nodes doesn't check if nodes in node mask are valid, cause a kernel oops when an invalid node is used.. Signed-off-by: Shaohua Li <shaohua.li@...el.com> Index: linux/mm/mempolicy.c =================================================================== --- linux.orig/mm/mempolicy.c 2007-07-25 09:14:33.000000000 +0800 +++ linux/mm/mempolicy.c 2007-08-21 13:15:41.000000000 +0800 @@ -850,6 +850,8 @@ static int get_nodes(nodemask_t *nodes, if (copy_from_user(nodes_addr(*nodes), nmask, nlongs*sizeof(unsigned long))) return -EFAULT; nodes_addr(*nodes)[nlongs-1] &= endmask; + + nodes_and(*nodes, *nodes, node_online_map); return 0; } - 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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