From 800cb255ea7ae4e6b55095949bc84eb864c08b2e Mon Sep 17 00:00:00 2001
From: anryko <a.shvenke@gmail.com>
Date: Sun, 7 Jan 2018 15:43:29 +0100
Subject: Fixed potential NULL dereference.

---
 src/nat/gnunet-nat.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/nat/gnunet-nat.c b/src/nat/gnunet-nat.c
index b3cf2e946..72f343627 100644
--- a/src/nat/gnunet-nat.c
+++ b/src/nat/gnunet-nat.c
@@ -377,10 +377,16 @@ run (void *cls,
     ls = GNUNET_NETWORK_socket_create (af,
 				       SOCK_DGRAM,
 				       IPPROTO_UDP);
+    if (NULL == ls)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
+      "Failed to create socket\n");
+      goto fail_and_shutdown;
+    }
     if (GNUNET_OK !=
-	GNUNET_NETWORK_socket_bind (ls,
-				    local_sa,
-				    local_len))
+        GNUNET_NETWORK_socket_bind (ls,
+                                    local_sa,
+                                    local_len))
     {
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 		  "Failed to bind to %s: %s\n",
-- 
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