From cbef1e102003edb236c6b2319ab269ccef963731 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Thu, 30 Jun 2016 21:41:13 +0200 Subject: [PATCH] batman-adv: Free last_bonding_candidate on release of orig_node The orig_ifinfo reference counter for last_bonding_candidate in batadv_orig_node has to be reduced when an originator node is released. Otherwise the orig_ifinfo is leaked and the reference counter the netdevice is not reduced correctly. Fixes: f3b3d9018975 ("batman-adv: add bonding again") Signed-off-by: Sven Eckelmann Signed-off-by: Marek Lindner Signed-off-by: Simon Wunderlich --- net/batman-adv/originator.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index fe2fcda4a984..ab8c4f9738fe 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -766,6 +766,7 @@ static void batadv_orig_node_release(struct kref *ref) struct batadv_orig_node *orig_node; struct batadv_orig_ifinfo *orig_ifinfo; struct batadv_orig_node_vlan *vlan; + struct batadv_orig_ifinfo *last_candidate; orig_node = container_of(ref, struct batadv_orig_node, refcount); @@ -783,8 +784,14 @@ static void batadv_orig_node_release(struct kref *ref) hlist_del_rcu(&orig_ifinfo->list); batadv_orig_ifinfo_put(orig_ifinfo); } + + last_candidate = orig_node->last_bonding_candidate; + orig_node->last_bonding_candidate = NULL; spin_unlock_bh(&orig_node->neigh_list_lock); + if (last_candidate) + batadv_orig_ifinfo_put(last_candidate); + spin_lock_bh(&orig_node->vlan_list_lock); hlist_for_each_entry_safe(vlan, node_tmp, &orig_node->vlan_list, list) { hlist_del_rcu(&vlan->list); -- 2.20.1