netdev - [PATCH] ipv6: Fix dst_release of invalid pointer

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Message-Id: <20100127070802.26065.73104.sendpatchset@krkumar2.in.ibm.com>
Date:	Wed, 27 Jan 2010 12:38:02 +0530
From:	Krishna Kumar <krkumar2@...ibm.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, Krishna Kumar <krkumar2@...ibm.com>
Subject: [PATCH] ipv6: Fix dst_release of invalid pointer

Fix dst_release on a invalid region.

Signed-off-by: Krishna Kumar <krkumar2@...ibm.com>
---
 net/ipv6/addrconf.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -ruNp org/net/ipv6/addrconf.c new/net/ipv6/addrconf.c
--- org/net/ipv6/addrconf.c	2010-01-27 10:03:28.000000000 +0530
+++ new/net/ipv6/addrconf.c	2010-01-27 10:04:00.000000000 +0530
@@ -823,7 +823,8 @@ static void ipv6_del_addr(struct inet6_i
 				rt->rt6i_flags |= RTF_EXPIRES;
 			}
 		}
-		dst_release(&rt->u.dst);
+		if (rt)
+			dst_release(&rt->u.dst);
 	}
 
 	in6_ifa_put(ifp);
--
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