This missing check lead to a kernel crash when a hard_if is removed on a
node forwarding
untagged and tagged traffic (VLANID 0) to and from the mesh network.
Signed-off-by: Andreas Pape apape@phoenixcontact.com
---
translation-table.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/translation-table.c b/translation-table.c
index b20812b..4d3ab8d 100644
--- a/translation-table.c
+++ b/translation-table.c
@@ -1143,8 +1143,10 @@ static void batadv_tt_local_table_free(struct
batadv_priv *bat_priv)
/* decrease the reference held for this vlan */
vlan = batadv_softif_vlan_get(bat_priv,
tt_common_entry->vid);
- batadv_softif_vlan_free_ref(vlan);
- batadv_softif_vlan_free_ref(vlan);
+ if (vlan) {
+ batadv_softif_vlan_free_ref(vlan);
+ batadv_softif_vlan_free_ref(vlan);
+ }
batadv_tt_local_entry_free_ref(tt_local);
}
--
1.7.0.4
..................................................................
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