[linux-next] LinuxNextTracking branch, master, updated. next-20140519

batman at open-mesh.org batman at open-mesh.org
Tue May 20 00:19:39 CEST 2014

The following commit has been merged in the master branch:
commit 16a4142363b11952d3aa76ac78004502c0c2fe6e
Author: Marek Lindner <mareklindner at neomailbox.ch>
Date:   Thu Apr 24 03:44:25 2014 +0800

    batman-adv: fix indirect hard_iface NULL dereference
    If hard_iface is NULL and goto out is made batadv_hardif_free_ref()
    doesn't check for NULL before dereferencing it to get to refcount.
    Introduced in cb1c92ec37fb70543d133a1fa7d9b54d6f8a1ecd
    ("batman-adv: add debugfs support to view multiif tables").
    Reported-by: Sven Eckelmann <sven at narfation.org>
    Signed-off-by: Marek Lindner <mareklindner at neomailbox.ch>
    Acked-by: Antonio Quartulli <antonio at meshcoding.com>
    Signed-off-by: Antonio Quartulli <antonio at meshcoding.com>

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 1785da3..6a48451 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -1079,7 +1079,8 @@ int batadv_orig_hardif_seq_print_text(struct seq_file *seq, void *offset)
 	bat_priv->bat_algo_ops->bat_orig_print(bat_priv, seq, hard_iface);
-	batadv_hardif_free_ref(hard_iface);
+	if (hard_iface)
+		batadv_hardif_free_ref(hard_iface);
 	return 0;


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