Patch "batman-adv: fix elp packet data reservation" has been added to the 4.7-stable tree

Patch "batman-adv: fix elp packet data reservation" has been added to the 4.7-stable tree

[gregkh]

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

    batman-adv: fix elp packet data reservation

to the 4.7-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:
     batman-adv-fix-elp-packet-data-reservation.patch
and it can be found in the queue-4.7 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 1e5d343b8f23770e8ac5d31f5c439826bdb35148 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
Date: Tue, 23 Aug 2016 03:13:03 +0200
Subject: batman-adv: fix elp packet data reservation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Linus Lüssing <linus.luessing@c0d3.blue>

commit 1e5d343b8f23770e8ac5d31f5c439826bdb35148 upstream.

The skb_reserve() call only reserved headroom for the mac header, but
not the elp packet header itself.

Fixing this by using skb_put()'ing towards the skb tail instead of
skb_push()'ing towards the skb head.

Fixes: d6f94d91f766 ("batman-adv: ELP - adding basic infrastructure")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/batman-adv/bat_v_elp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -334,7 +334,7 @@ int batadv_v_elp_iface_enable(struct bat
 		goto out;
 
 	skb_reserve(hard_iface->bat_v.elp_skb, ETH_HLEN + NET_IP_ALIGN);
-	elp_buff = skb_push(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
+	elp_buff = skb_put(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
 	elp_packet = (struct batadv_elp_packet *)elp_buff;
 	memset(elp_packet, 0, BATADV_ELP_HLEN);
 


Patches currently in stable-queue which might be from linus.luessing@c0d3.blue are

queue-4.7/batman-adv-fix-elp-packet-data-reservation.patch