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| author | Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | 2017-06-15 10:29:30 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-16 12:01:29 -0400 |
| commit | f1925ca50deb48eddafc01bc12c2a17bfbf54425 (patch) | |
| tree | 3afadacefe7943286568cee13fc7a1382642d540 /net/ipv6 | |
| parent | 469f87e158628fe66dcbbce9dd5e7b7acfe934a9 (diff) | |
| download | linux-f1925ca50deb48eddafc01bc12c2a17bfbf54425.tar.gz linux-f1925ca50deb48eddafc01bc12c2a17bfbf54425.tar.bz2 linux-f1925ca50deb48eddafc01bc12c2a17bfbf54425.zip | |
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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index c3581973f5d7..035c0496b92a 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -858,6 +858,8 @@ 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; } |