From ca208d065c064692a334dff8612b7049475d4214 Mon Sep 17 00:00:00 2001
From: Daniel Walton <dwalton@cumulusnetworks.com>
Date: Mon, 14 Dec 2015 19:40:27 +0000
Subject: [PATCH] zebra: Crash upon disabling a link

Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by:   Donald Sharp <sharpd@cumulusnetworks.com>

Ticket: CM-8514
---
 zebra/interface.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/zebra/interface.c b/zebra/interface.c
index cb4645c2f1..dcbc5a3b95 100644
--- a/zebra/interface.c
+++ b/zebra/interface.c
@@ -1770,6 +1770,9 @@ ipv6_address_configured (struct interface *ifp)
   struct connected *connected;
   struct listnode *node;
 
+  if (!ifp)
+    return 0;
+
   for (ALL_LIST_ELEMENTS_RO (ifp->connected, node, connected))
     if (CHECK_FLAG (connected->conf, ZEBRA_IFC_REAL) && (connected->address->family == AF_INET6))
       return 1;
-- 
2.39.5