From 4bd01d03e323377bbbd7609e29d8179bcb682deb Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 13 Jan 2018 14:37:44 +0100
Subject: [PATCH] prevent assertion failure

---
 src/transport/gnunet-service-transport_neighbours.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/transport/gnunet-service-transport_neighbours.c b/src/transport/gnunet-service-transport_neighbours.c
index e6e4de0f5..e124f1667 100644
--- a/src/transport/gnunet-service-transport_neighbours.c
+++ b/src/transport/gnunet-service-transport_neighbours.c
@@ -1407,6 +1407,14 @@ try_transmission_to_peer (struct NeighbourMapEntry *n)
   }
   if (NULL == mq)
     return;                     /* no more messages */
+  if (NULL == n->primary_address.address)
+  {
+    /* transmit_send_continuation() caused us to drop session,
+       can't try transmission anymore. */
+    return;
+  }
+
+
   GNUNET_CONTAINER_DLL_remove (n->messages_head,
                                n->messages_tail,
                                mq);
-- 
2.25.1