TT#74050 handle sinks with null addresses correctly

Change-Id: Ic2f2b840c4595e1d061cfd0cdf7465e8aeebb3ac
(cherry picked from commit 2a2e3f3fcc)

daemon/media_socket.c

@@ -981,6 +981,8 @@ void kernelize(struct packet_stream *stream) {
 		goto no_kernel;
 	if (stream->media->monologue->block_media || call->block_media)
 		goto no_kernel;
+	if (!stream->endpoint.address.family)
+		goto no_kernel;
 
         ilog(LOG_INFO, "Kernelizing media stream: %s:%d", sockaddr_print_buf(&stream->endpoint.address), stream->endpoint.port);
 
@@ -989,6 +991,8 @@ void kernelize(struct packet_stream *stream) {
 		ilog(LOG_WARNING, "Attempt to kernelize stream without sink");
 		goto no_kernel;
 	}
+	if (!sink->endpoint.address.family)
+		goto no_kernel;
 
 	determine_handler(stream, sink);