Patch "netlink: reset network header before passing to taps" has been added to the 3.16-stable tree

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

    netlink: reset network header before passing to taps

to the 3.16-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:
     netlink-reset-network-header-before-passing-to-taps.patch
and it can be found in the queue-3.16 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 Sun Oct 12 20:11:55 CEST 2014
From: Daniel Borkmann <dborkman@xxxxxxxxxx>
Date: Thu, 7 Aug 2014 22:22:47 +0200
Subject: netlink: reset network header before passing to taps

From: Daniel Borkmann <dborkman@xxxxxxxxxx>

[ Upstream commit 4e48ed883c72e78c5a910f8831ffe90c9b18f0ec ]

netlink doesn't set any network header offset thus when the skb is
being passed to tap devices via dev_queue_xmit_nit(), it emits klog
false positives due to it being unset like:

  ...
  [  124.990397] protocol 0000 is buggy, dev nlmon0
  [  124.990411] protocol 0000 is buggy, dev nlmon0
  ...

So just reset the network header before passing to the device; for
packet sockets that just means nothing will change - mac and net
offset hold the same value just as before.

Reported-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Daniel Borkmann <dborkman@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/netlink/af_netlink.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -205,7 +205,7 @@ static int __netlink_deliver_tap_skb(str
 		nskb->protocol = htons((u16) sk->sk_protocol);
 		nskb->pkt_type = netlink_is_kernel(sk) ?
 				 PACKET_KERNEL : PACKET_USER;
-
+		skb_reset_network_header(nskb);
 		ret = dev_queue_xmit(nskb);
 		if (unlikely(ret > 0))
 			ret = net_xmit_errno(ret);


Patches currently in stable-queue which might be from dborkman@xxxxxxxxxx are

queue-3.16/netlink-reset-network-header-before-passing-to-taps.patch
queue-3.16/net-filter-fix-possible-use-after-free.patch
queue-3.16/packet-handle-too-big-packets-for-packet_v3.patch
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