From: Haishuang Yan yanhaishuang@cmss.chinamobile.com
[ Upstream commit f1925ca50deb48eddafc01bc12c2a17bfbf54425 ]
When __ip6_tnl_rcv fails, the tun_dst won't be freed, so call dst_release to free it in error code path.
Fixes: 8d79266bc48c ("ip6_tunnel: add collect_md mode to IPv6 tunnels") CC: Alexei Starovoitov ast@fb.com Tested-by: Zhang Shengju zhangshengju@cmss.chinamobile.com Signed-off-by: Haishuang Yan yanhaishuang@cmss.chinamobile.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- net/ipv6/ip6_tunnel.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index a2fcf7bdb597..5a009807ac2f 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -859,6 +859,8 @@ static int __ip6_tnl_rcv(struct ip6_tnl *tunnel, struct sk_buff *skb, return 0;
drop: + if (tun_dst) + dst_release((struct dst_entry *)tun_dst); kfree_skb(skb); return 0; }