Patch "netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags" has been added to the 4.4-stable tree

Patch "netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags" has been added to the 4.4-stable tree

[gregkh]

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

    netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags

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-nf_dup_ipv6-set-again-flowi_flag_known_nh-at-flowi6_flags.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@vger.kernel.org> know about it.


>From 83170f3beccccd7ceb4f9a0ac0c4dc736afde90c Mon Sep 17 00:00:00 2001
From: Paolo Abeni <pabeni@redhat.com>
Date: Thu, 26 May 2016 19:08:10 +0200
Subject: netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags

From: Paolo Abeni <pabeni@redhat.com>

commit 83170f3beccccd7ceb4f9a0ac0c4dc736afde90c upstream.

With the commit 48e8aa6e3137 ("ipv6: Set FLOWI_FLAG_KNOWN_NH at
flowi6_flags") ip6_pol_route() callers were asked to to set the
FLOWI_FLAG_KNOWN_NH properly and xt_TEE was updated accordingly,
but with the later refactor in commit bbde9fc1824a ("netfilter:
factor out packet duplication for IPv4/IPv6") the flowi6_flags
update was lost.
This commit re-add it just before the routing decision.

Fixes: bbde9fc1824a ("netfilter: factor out packet duplication for IPv4/IPv6")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/ipv6/netfilter/nf_dup_ipv6.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/ipv6/netfilter/nf_dup_ipv6.c
+++ b/net/ipv6/netfilter/nf_dup_ipv6.c
@@ -33,6 +33,7 @@ static bool nf_dup_ipv6_route(struct net
 	fl6.daddr = *gw;
 	fl6.flowlabel = (__force __be32)(((iph->flow_lbl[0] & 0xF) << 16) |
 			(iph->flow_lbl[1] << 8) | iph->flow_lbl[2]);
+	fl6.flowi6_flags = FLOWI_FLAG_KNOWN_NH;
 	dst = ip6_route_output(net, NULL, &fl6);
 	if (dst->error) {
 		dst_release(dst);


Patches currently in stable-queue which might be from pabeni@redhat.com are

queue-4.4/netfilter-nf_dup_ipv6-set-again-flowi_flag_known_nh-at-flowi6_flags.patch