[maint,v2,1/4] batman-adv: Fix orig_node_vlan leak on orig_node_release
Commit Message
batadv_orig_node_new uses batadv_orig_node_vlan_new to allocate a new
batadv_orig_node_vlan and add it to batadv_orig_node::vlan_list. References
to this list have also to be cleaned when the batadv_orig_node is removed.
Fixes: 21a57f6e7a3b ("batman-adv: make the TT CRC logic VLAN specific")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
--
v2:
- nothing changed
---
net/batman-adv/originator.c | 8 ++++++++
1 file changed, 8 insertions(+)
Comments
On Thursday, June 30, 2016 20:10:46 Sven Eckelmann wrote:
> batadv_orig_node_new uses batadv_orig_node_vlan_new to allocate a new
> batadv_orig_node_vlan and add it to batadv_orig_node::vlan_list. References
> to this list have also to be cleaned when the batadv_orig_node is removed.
>
> Fixes: 21a57f6e7a3b ("batman-adv: make the TT CRC logic VLAN specific")
> Signed-off-by: Sven Eckelmann <sven@narfation.org>
> --
> v2:
> - nothing changed
> ---
> net/batman-adv/originator.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
Applied in revision 719afd2.
Thanks,
Marek
@@ -786,6 +786,7 @@ static void batadv_orig_node_release(struct kref *ref)
struct batadv_neigh_node *neigh_node;
struct batadv_orig_node *orig_node;
struct batadv_orig_ifinfo *orig_ifinfo;
+ struct batadv_orig_node_vlan *vlan;
orig_node = container_of(ref, struct batadv_orig_node, refcount);
@@ -805,6 +806,13 @@ static void batadv_orig_node_release(struct kref *ref)
}
spin_unlock_bh(&orig_node->neigh_list_lock);
+ 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);
+ batadv_orig_node_vlan_put(vlan);
+ }
+ spin_unlock_bh(&orig_node->vlan_list_lock);
+
/* Free nc_nodes */
batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);