[ospf6d] Fix ospf6d crash if removing interface with no area

ospf6d will crash if attempting to remove interface when no areas have been
defined Check if any areas have been defined.  Should prevent use of empty
pointer.

diff --git a/ospf6d/ospf6_top.c b/ospf6d/ospf6_top.c
index 2d4d3caf29b5220d59bf2492f35e2d53da8f2396..5808428b9fc38664c7720c3b4f3a255ec7a83b20 100644 (file)
--- a/ospf6d/ospf6_top.c
+++ b/ospf6d/ospf6_top.c
@@ -403,6 +403,13 @@ DEFUN (no_ospf6_interface_area,
       return CMD_SUCCESS;
     }
 
+  /* Verify Area */
+  if (oi->area == NULL)
+    {
+      vty_out (vty, "No such Area-ID: %s%s", argv[1], VNL);
+      return CMD_SUCCESS;
+    }
+
   if (oi->area->area_id != area_id)
     {
       vty_out (vty, "Wrong Area-ID: %s is attached to area %s%s",