Patch "netfilter: restart search if moved to other chain" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

netfilter: restart search if moved to other chain

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-restart-search-if-moved-to-other-chain.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 <[email protected]> know about it.

From: Florian Westphal <[email protected]>
Date: Thu, 25 Aug 2016 15:33:29 +0200
Subject: netfilter: restart search if moved to other chain

From: Florian Westphal <[email protected]>

commit 95a8d19f28e6b29377a880c6264391a62e07fccc upstream.

In case nf_conntrack_tuple_taken did not find a conflicting entry check that all entries in this hash slot were tested and restart in case an entry was moved to another chain.

---
 net/netfilter/nf_conntrack_core.c |    7 +++++++
 1 file changed, 7 insertions(+)

@@ -719,6 +719,7 @@ nf_conntrack_tuple_taken(const struct nf
 	 * least once for the stats anyway.
 	 */
 	rcu_read_lock_bh();
+ begin:
 	hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnnode) {
 		ct = nf_ct_tuplehash_to_ctrack(h);
 		if (ct != ignored_conntrack &&

@@ -730,6 +731,12 @@ nf_conntrack_tuple_taken(const struct nf
 		}
 		NF_CT_STAT_INC(net, searched);
 	}
+
+	if (get_nulls_value(n) != hash) {
+		NF_CT_STAT_INC(net, search_restart);
+		goto begin;
+	}
+
 	rcu_read_unlock_bh();
 
 	return 0;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/netfilter-x_tables-speed-up-jump-target-validation.patch queue-4.4/netfilter-arp_tables-fix-invoking-32bit-iptable-p-input-accept-failed-in-64bit-kernel.patch queue-4.4/netfilter-restart-search-if-moved-to-other-chain.patch queue-4.4/netfilter-nfnetlink_queue-reject-verdict-request-from-different-portid.patch