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ipv6: check return value for dst_alloc
author
Madalin Bucur
<madalin.bucur@freescale.com>
Mon, 26 Sep 2011 07:04:56 +0000
(07:04 +0000)
committer
David S. Miller
<davem@davemloft.net>
Tue, 27 Sep 2011 19:32:06 +0000
(15:32 -0400)
return value of dst_alloc must be checked before use
Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/route.c
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diff --git
a/net/ipv6/route.c
b/net/ipv6/route.c
index
1250f90
..
fb545ed
100644
(file)
--- a/
net/ipv6/route.c
+++ b/
net/ipv6/route.c
@@
-244,7
+244,9
@@
static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops,
{
struct rt6_info *rt = dst_alloc(ops, dev, 0, 0, flags);
- memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry));
+ if (rt != NULL)
+ memset(&rt->rt6i_table, 0,
+ sizeof(*rt) - sizeof(struct dst_entry));
return rt;
}