diff options
| author | Xin Long <lucien.xin@gmail.com> | 2019-10-29 01:24:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:21:12 +0100 |
| commit | a1014da6569786109872df6af0200cdf952043ed (patch) | |
| tree | ea6e6092b03b98278088f8b56723e99d18ba17fc /net/ipv4/tcp_ipv4.c | |
| parent | af26f04e074fe94c4cd7a58edbb919b56b7cba4a (diff) | |
vxlan: check tun_info options_len properly
[ Upstream commit eadf52cf1852196a1363044dcda22fa5d7f296f7 ]
This patch is to improve the tun_info options_len by dropping
the skb when TUNNEL_VXLAN_OPT is set but options_len is less
than vxlan_metadata. This can void a potential out-of-bounds
access on ip_tun_info.
Fixes: ee122c79d422 ("vxlan: Flow based tunneling")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
0 files changed, 0 insertions, 0 deletions