linux-kernel - [PATCH 3.13 064/172] batman-adv: fix TT-TVLV parsing on OGM reception

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Date:	Tue,  4 Mar 2014 12:02:28 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Antonio Quartulli <antonio@...hcoding.com>,
	Marek Lindner <mareklindner@...mailbox.ch>
Subject: [PATCH 3.13 064/172] batman-adv: fix TT-TVLV parsing on OGM reception

3.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Antonio Quartulli <antonio@...hcoding.com>

[ Upstream commit e889241f45f9cecbc84a6ffed577083ab52e62ee ]

When accessing a TT-TVLV container in the OGM RX path
the variable pointing to the list of changes to apply is
altered by mistake.

This makes the TT component read data at the wrong position
in the OGM packet buffer.

Fix it by removing the bogus pointer alteration.

Signed-off-by: Antonio Quartulli <antonio@...hcoding.com>
Signed-off-by: Marek Lindner <mareklindner@...mailbox.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/batman-adv/translation-table.c |    1 -
 1 file changed, 1 deletion(-)

--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -3204,7 +3204,6 @@ static void batadv_tt_update_orig(struct
 
 		spin_lock_bh(&orig_node->tt_lock);
 
-		tt_change = (struct batadv_tvlv_tt_change *)tt_buff;
 		batadv_tt_update_changes(bat_priv, orig_node, tt_num_changes,
 					 ttvn, tt_change);
 


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