Commit aa0c2c68 authored by Liping Zhang's avatar Liping Zhang Committed by Pablo Neira Ayuso

netfilter: ctnetlink: reject new conntrack request with different l4proto

Currently, user can add a conntrack with different l4proto via nfnetlink.
For example, original tuple is TCP while reply tuple is SCTP. This is
invalid combination, we should report EINVAL to userspace.
Signed-off-by: default avatarLiping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 00a3101f
......@@ -1894,6 +1894,8 @@ static int ctnetlink_new_conntrack(struct net *net, struct sock *ctnl,
if (!cda[CTA_TUPLE_ORIG] || !cda[CTA_TUPLE_REPLY])
return -EINVAL;
if (otuple.dst.protonum != rtuple.dst.protonum)
return -EINVAL;
ct = ctnetlink_create_conntrack(net, &zone, cda, &otuple,
&rtuple, u3);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment