diff options
| author | Lorenzo Bianconi <lorenzo.bianconi@redhat.com> | 2019-04-06 17:16:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-08 16:16:47 -0700 |
| commit | 2a3cabae4536edbcb21d344e7aa8be7a584d2afb (patch) | |
| tree | 00ed4848635bab7f9a56eabc75776e4b4b82b495 /lib/sha1.c | |
| parent | 492b67e28ee5f2a2522fb72e3d3bcb990e461514 (diff) | |
net: ip6_gre: fix possible use-after-free in ip6erspan_rcv
erspan_v6 tunnels run __iptunnel_pull_header on received skbs to remove
erspan header. This can determine a possible use-after-free accessing
pkt_md pointer in ip6erspan_rcv since the packet will be 'uncloned'
running pskb_expand_head if it is a cloned gso skb (e.g if the packet has
been sent though a veth device). Fix it resetting pkt_md pointer after
__iptunnel_pull_header
Fixes: 1d7e2ed22f8d ("net: erspan: refactor existing erspan code")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/sha1.c')
0 files changed, 0 insertions, 0 deletions