From: Haishuang Yan yanhaishuang@cmss.chinamobile.com
[ Upstream commit 469f87e158628fe66dcbbce9dd5e7b7acfe934a9 ]
When ip_tunnel_rcv fails, the tun_dst won't be freed, so call dst_release to free it in error code path.
Fixes: 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.") Acked-by: Eric Dumazet edumazet@google.com Acked-by: Pravin B Shelar pshelar@ovn.org 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/ipv4/ip_tunnel.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 96536a0d6e2d..a665eaab5db2 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -439,6 +439,8 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb, return 0;
drop: + if (tun_dst) + dst_release((struct dst_entry *)tun_dst); kfree_skb(skb); return 0; }