From 67928c4041606f02725f3c95c4c0404e4532df1b Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Fri, 23 Sep 2011 13:11:01 +0000
Subject: [PATCH] ipv6-multicast: Fix memory leak in IPv6 multicast.
If reg_vif_xmit cannot find a routing entry, be sure to
free the skb before returning the error.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv6/ip6mr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 825d02fa6586..def0538e2413 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -696,8 +696,10 @@ static netdev_tx_t reg_vif_xmit(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);
dev->stats.tx_bytes += skb->len;