ip6_tunnel: fix potential issue in __ip6_tnl_rcv
authorHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
Thu, 15 Jun 2017 02:29:30 +0000 (10:29 +0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 16 Jun 2017 16:01:29 +0000 (12:01 -0400)
commitf1925ca50deb48eddafc01bc12c2a17bfbf54425
tree3afadacefe7943286568cee13fc7a1382642d540
parent469f87e158628fe66dcbbce9dd5e7b7acfe934a9
ip6_tunnel: fix potential issue in __ip6_tnl_rcv

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>
net/ipv6/ip6_tunnel.c