[ 22/73] ipv6-multicast: Fix memory leak in input path.

[Greg KH]

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Ben Greear <greearb@xxxxxxxxxxxxxxx>

[ Upstream commit 2015de5fe2a47086a3260802275932bfd810884e ]

Have to free the skb before returning if we fail
the fib lookup.

Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/ipv6/ip6mr.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2051,8 +2051,10 @@ int ip6_mr_input(struct sk_buff *skb)
 	int err;
 
 	err = ip6mr_fib_lookup(net, &fl6, &mrt);
-	if (err < 0)
+	if (err < 0) {
+		kfree_skb(skb);
 		return err;
+	}
 
 	read_lock(&mrt_lock);
 	cache = ip6mr_cache_find(mrt,


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