From af0a171c07174661db71f92e442d4e6e90984b77 Mon Sep 17 00:00:00 2001 From: Marek Lindner Date: Thu, 24 Apr 2014 03:41:26 +0800 Subject: batman-adv: fix NULL pointer dereferences MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Was introduced with 4c8755d69cbde2ec464a39c932aed0a83f9ff89f ("batman-adv: Send multicast packets to nodes with a WANT_ALL flag") Reported-by: Sven Eckelmann Signed-off-by: Marek Lindner Acked-by: Antonio Quartulli Signed-off-by: Linus Lüssing Signed-off-by: Antonio Quartulli --- net/batman-adv/multicast.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/batman-adv') diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index 8c7ca811de6e..96b66fd30f96 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -415,7 +415,7 @@ batadv_mcast_forw_ipv4_node_get(struct batadv_priv *bat_priv) hlist_for_each_entry_rcu(tmp_orig_node, &bat_priv->mcast.want_all_ipv4_list, mcast_want_all_ipv4_node) { - if (!atomic_inc_not_zero(&orig_node->refcount)) + if (!atomic_inc_not_zero(&tmp_orig_node->refcount)) continue; orig_node = tmp_orig_node; @@ -442,7 +442,7 @@ batadv_mcast_forw_ipv6_node_get(struct batadv_priv *bat_priv) hlist_for_each_entry_rcu(tmp_orig_node, &bat_priv->mcast.want_all_ipv6_list, mcast_want_all_ipv6_node) { - if (!atomic_inc_not_zero(&orig_node->refcount)) + if (!atomic_inc_not_zero(&tmp_orig_node->refcount)) continue; orig_node = tmp_orig_node; @@ -493,7 +493,7 @@ batadv_mcast_forw_unsnoop_node_get(struct batadv_priv *bat_priv) hlist_for_each_entry_rcu(tmp_orig_node, &bat_priv->mcast.want_all_unsnoopables_list, mcast_want_all_unsnoopables_node) { - if (!atomic_inc_not_zero(&orig_node->refcount)) + if (!atomic_inc_not_zero(&tmp_orig_node->refcount)) continue; orig_node = tmp_orig_node; -- cgit v1.2.3