commit cbef1e102003edb236c6b2319ab269ccef963731 upstream.
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 <sven@xxxxxxxxxxxxx>
Signed-off-by: Marek Lindner <mareklindner@xxxxxxxxxxxxx>
Signed-off-by: Simon Wunderlich <sw@xxxxxxxxxxxxxxxxxx>
---
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 ce9743aa8a14..ce5b991707d0 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -565,6 +565,7 @@ static void batadv_orig_node_release(struct batadv_orig_node *orig_node)
struct batadv_neigh_node *neigh_node;
struct batadv_orig_ifinfo *orig_ifinfo;
struct batadv_orig_node_vlan *vlan;
+ struct batadv_orig_ifinfo *last_candidate;
spin_lock_bh(&orig_node->neigh_list_lock);
@@ -580,8 +581,14 @@ static void batadv_orig_node_release(struct batadv_orig_node *orig_node)
hlist_del_rcu(&orig_ifinfo->list);
batadv_orig_ifinfo_free_ref(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_free_ref(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
