From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Fri, 08 Nov 2013 09:45:33 +0000 Subject: [patch] metag: off by one in setup_bootmem_node() Message-Id: <20131108094533.GD27977@elgon.mountain> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kernel-janitors@vger.kernel.org If "nid = MAX_NUMNODES" then we write beyond the end of the node_data[] array. Signed-off-by: Dan Carpenter diff --git a/arch/metag/mm/numa.c b/arch/metag/mm/numa.c index 9ae578c..b172aa4 100644 --- a/arch/metag/mm/numa.c +++ b/arch/metag/mm/numa.c @@ -34,7 +34,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end) unsigned long pgdat_paddr; /* Don't allow bogus node assignment */ - BUG_ON(nid > MAX_NUMNODES || nid <= 0); + BUG_ON(nid >= MAX_NUMNODES || nid <= 0); start_pfn = start >> PAGE_SHIFT; end_pfn = end >> PAGE_SHIFT; From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [patch] metag: off by one in setup_bootmem_node() Date: Fri, 8 Nov 2013 12:45:33 +0300 Message-ID: <20131108094533.GD27977@elgon.mountain> Mime-Version: 1.0 Return-path: Content-Disposition: inline Sender: linux-metag-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: James Hogan Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org If "nid == MAX_NUMNODES" then we write beyond the end of the node_data[] array. Signed-off-by: Dan Carpenter diff --git a/arch/metag/mm/numa.c b/arch/metag/mm/numa.c index 9ae578c..b172aa4 100644 --- a/arch/metag/mm/numa.c +++ b/arch/metag/mm/numa.c @@ -34,7 +34,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end) unsigned long pgdat_paddr; /* Don't allow bogus node assignment */ - BUG_ON(nid > MAX_NUMNODES || nid <= 0); + BUG_ON(nid >= MAX_NUMNODES || nid <= 0); start_pfn = start >> PAGE_SHIFT; end_pfn = end >> PAGE_SHIFT; -- To unsubscribe from this list: send the line "unsubscribe linux-metag" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html