This is a note to let you know that I've just added the patch titled
netfilter: nfnetlink_queue: reject verdict request from different portid
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-nfnetlink_queue-reject-verdict-request-from-different-portid.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 00a3101f561816e58de054a470484996f78eb5eb Mon Sep 17 00:00:00 2001
From: Liping Zhang <liping.zhang@xxxxxxxxxxxxxx>
Date: Mon, 8 Aug 2016 22:07:27 +0800
Subject: netfilter: nfnetlink_queue: reject verdict request from different portid
From: Liping Zhang <liping.zhang@xxxxxxxxxxxxxx>
commit 00a3101f561816e58de054a470484996f78eb5eb upstream.
Like NFQNL_MSG_VERDICT_BATCH do, we should also reject the verdict
request when the portid is not same with the initial portid(maybe
from another process).
Fixes: 97d32cf9440d ("netfilter: nfnetlink_queue: batch verdict support")
Signed-off-by: Liping Zhang <liping.zhang@xxxxxxxxxxxxxx>
Reviewed-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Acked-by: Michal Kubecek <mkubecek@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nfnetlink_queue.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1053,10 +1053,8 @@ nfqnl_recv_verdict(struct sock *ctnl, st
struct net *net = sock_net(ctnl);
struct nfnl_queue_net *q = nfnl_queue_pernet(net);
- queue = instance_lookup(q, queue_num);
- if (!queue)
- queue = verdict_instance_lookup(q, queue_num,
- NETLINK_CB(skb).portid);
+ queue = verdict_instance_lookup(q, queue_num,
+ NETLINK_CB(skb).portid);
if (IS_ERR(queue))
return PTR_ERR(queue);
Patches currently in stable-queue which might be from liping.zhang@xxxxxxxxxxxxxx are
queue-4.4/netfilter-nf_ct_expect-remove-the-redundant-slash-when-policy-name-is-empty.patch
queue-4.4/netfilter-nfnetlink_queue-reject-verdict-request-from-different-portid.patch