rtspsrc: check for NULL before doing strcmp

Check the connection and address type for NULL before doing strcmp and
crashing.

Fixes #612553

diff --git a/gst/rtsp/gstrtspsrc.c b/gst/rtsp/gstrtspsrc.c
index 3048bd2..59302b1 100644 (file)
--- a/gst/rtsp/gstrtspsrc.c
+++ b/gst/rtsp/gstrtspsrc.c
@@ -808,7 +808,10 @@ static void
 gst_rtspsrc_do_stream_connection (GstRTSPSrc * src, GstRTSPStream * stream,
     const GstSDPConnection * conn)
 {
-  if (strcmp (conn->nettype, "IN") != 0)
+  if (conn->nettype == NULL || strcmp (conn->nettype, "IN") != 0)
+    return;
+
+  if (conn->addrtype == NULL)
     return;
 
   /* check for IPV6 */