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: 797edd9e87ac ("batman-adv: add bonding again") Signed-off-by: Sven Eckelmann sven@narfation.org --- v2: - added new patch --- 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 40626b4..8208276 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -787,6 +787,7 @@ 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);
@@ -804,8 +805,14 @@ 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);