| commit | 01f5bffad555f8e22a61f4b1261fe09cf1b96994 | [log] [tgz] |
|---|---|---|
| author | Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | Fri Jul 26 00:40:17 2019 +0800 |
| committer | David S. Miller <davem@davemloft.net> | Fri Jul 26 14:17:44 2019 -0700 |
| tree | a5131a096a2872bac0fcd888ebfd6c46ee174ed8 | |
| parent | c5d139697d5d9ecf9c7cd92d7d7838a173508900 [diff] |
ip6_tunnel: fix possible use-after-free on xmit
ip4ip6/ip6ip6 tunnels run iptunnel_handle_offloads on xmit which
can cause a possible use-after-free accessing iph/ipv6h pointer
since the packet will be 'uncloned' running pskb_expand_head if
it is a cloned gso skb.
Fixes: 0e9a709560db ("ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>