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ipv6: release dst properly in ipip6_tunnel_xmit

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if a dst is not attached to anywhere, it should be released before
exit ipip6_tunnel_xmit, otherwise cause dst memory leakage.

Fixes: 61c1db7fae ("ipv6: sit: add GSO/TSO support")
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li RongQing 2013-12-20 17:20:12 +08:00 committed by David S. Miller
parent 4710b2ba87
commit 6a9eadccff
1 changed files with 3 additions and 1 deletions
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4
net/ipv6/sit.c
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@ -966,8 +966,10 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
skb = iptunnel_handle_offloads(skb, false, SKB_GSO_SIT);
if (IS_ERR(skb))
if (IS_ERR(skb)) {
ip_rt_put(rt);
goto out;
}
err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos,
ttl, df, !net_eq(tunnel->net, dev_net(dev)));