diff options
| author | Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> | 2018-06-27 07:39:36 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-29 17:50:26 +0300 |
| commit | 256c87c17c53e60882a43dcf3e98f3bf859eaf6f (patch) | |
| tree | 7a2a26b4f7f498daa289ea986a0de6ed1fc3c694 /net/ipv4/ip_gre.c | |
| parent | 9d7298cd1dc55ebe053686f9bce74bfdcc812399 (diff) | |
| download | linux-256c87c17c53e60882a43dcf3e98f3bf859eaf6f.tar.xz | |
net: check tunnel option type in tunnel flags
Check the tunnel option type stored in tunnel flags when creating options
for tunnels. Thereby ensuring we do not set geneve, vxlan or erspan tunnel
options on interfaces that are not associated with them.
Make sure all users of the infrastructure set correct flags, for the BPF
helper we have to set all bits to keep backward compatibility.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_gre.c')
| -rw-r--r-- | net/ipv4/ip_gre.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 2d8efeecf619..c8ca5d8f0f75 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -587,6 +587,8 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev, goto err_free_skb; key = &tun_info->key; + if (!(tun_info->key.tun_flags & TUNNEL_ERSPAN_OPT)) + goto err_free_rt; md = ip_tunnel_info_opts(tun_info); if (!md) goto err_free_rt; |