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%3Ba=su...

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