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Commit 6a9eadcc authored by Li RongQing's avatar Li RongQing Committed by David S. Miller
Browse files

ipv6: release dst properly in ipip6_tunnel_xmit 



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

Fixes: 61c1db7f ("ipv6: sit: add GSO/TSO support")
Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
Acked-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4710b2ba

net/ipv6/sit.c

+3 −1
Original line number Diff line number Diff line
@@ -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)));