From: kamatchi soundaram <kamatchi@tdd.sj.nec.com>
Subject: [zebra 19263] Another memory leak!! is zebra OSPF

   This memory leak gets into picture whenever any interface goes down.

 Problem found and desctription: Whenever the interface goes down, the
 "def_params" (member of ospf_if_info) structure memory is not freed.

 Fix made: added the following line to free the "def_params" memory of
 ospf_if_info before calling the  "XFREE(MTYPE_OSPF_IF_INFO, ifp->info);"
 The added line is:
       ospf_del_if_params ((struct ospf_if_params *) IF_DEF_PARAMS (ifp));
diff --git a/ospfd/ospf_interface.c b/ospfd/ospf_interface.c
index 83abf55..08bc7fb 100644
--- a/ospfd/ospf_interface.c
+++ b/ospfd/ospf_interface.c
@@ -643,6 +643,7 @@
 #endif /* HAVE_OPAQUE_LSA */
   route_table_finish (IF_OIFS (ifp));
   route_table_finish (IF_OIFS_PARAMS (ifp));
+  ospf_del_if_params ((struct ospf_if_params *) IF_DEF_PARAMS (ifp));
   XFREE (MTYPE_OSPF_IF_INFO, ifp->info);
   ifp->info = NULL;