This is a note to let you know that I've just added the patch titled ip6_gre: remove the incorrect mtu limit for ipgre tap to the 4.14-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: ip6_gre-remove-the-incorrect-mtu-limit-for-ipgre-tap.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Wed Feb 28 16:23:28 CET 2018 From: Xin Long <lucien.xin@xxxxxxxxx> Date: Mon, 18 Dec 2017 14:25:09 +0800 Subject: ip6_gre: remove the incorrect mtu limit for ipgre tap From: Xin Long <lucien.xin@xxxxxxxxx> [ Upstream commit 2c52129a7d74d017320804c6928de770815c5f4a ] The same fix as the patch "ip_gre: remove the incorrect mtu limit for ipgre tap" is also needed for ip6_gre. Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking") Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/ipv6/ip6_gre.c | 1 + 1 file changed, 1 insertion(+) --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1335,6 +1335,7 @@ static void ip6gre_tap_setup(struct net_ ether_setup(dev); + dev->max_mtu = 0; dev->netdev_ops = &ip6gre_tap_netdev_ops; dev->needs_free_netdev = true; dev->priv_destructor = ip6gre_dev_free; Patches currently in stable-queue which might be from lucien.xin@xxxxxxxxx are queue-4.14/ip_gre-remove-the-incorrect-mtu-limit-for-ipgre-tap.patch queue-4.14/ip6_gre-remove-the-incorrect-mtu-limit-for-ipgre-tap.patch queue-4.14/ip6_tunnel-allow-ip6gre-dev-mtu-to-be-set-below-1280.patch queue-4.14/vxlan-update-skb-dst-pmtu-on-tx-path.patch queue-4.14/ip6_tunnel-get-the-min-mtu-properly-in-ip6_tnl_xmit.patch queue-4.14/sctp-fix-the-issue-that-a-__u16-variable-may-overflow-in-sctp_ulpq_renege.patch