Commit 28e48603 authored by Xin Long's avatar Xin Long Committed by David S. Miller
Browse files

ip6_gre: fix a dst leak in ip6erspan_tunnel_xmit

In ip6erspan_tunnel_xmit(), if the skb will not be sent out, it has to
be freed on the tx_err path. Otherwise when deleting a netns, it would
cause dst/dev to leak, and dmesg shows:

  unregister_netdevice: waiting for lo to become free. Usage count = 1

Fixes: ef7baf5e

 ("ip6_gre: add ip6 erspan collect_md mode")
Signed-off-by: default avatarXin Long <>
Acked-by: default avatarWilliam Tu <>
Signed-off-by: default avatarDavid S. Miller <>
parent acdcecc6
......@@ -968,7 +968,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
if (unlikely(!tun_info ||
!(tun_info->mode & IP_TUNNEL_INFO_TX) ||
ip_tunnel_info_af(tun_info) != AF_INET6))
return -EINVAL;
goto tx_err;
key = &tun_info->key;
memset(&fl6, 0, sizeof(fl6));
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