1 files changed, 4 insertions, 0 deletions
diff --git a/stream/realrtsp/real.c b/stream/realrtsp/real.c
index d81b265bab..b8f943c8e0 100644
--- a/stream/realrtsp/real.c
+++ b/stream/realrtsp/real.c
@@ -382,10 +382,14 @@ int real_get_rdt_chunk(rtsp_t *rtsp_session, char **buffer, int rdt_rawdata) {
     ph.flags=0;
   *buffer = xbuffer_ensure_size(*buffer, 12+size);
   if(rdt_rawdata) {
+      if (size < 12)
+          return 0;
     n=rtsp_read_data(rtsp_session, *buffer, size-12);
     return (n <= 0) ? 0 : n;
   }
   rmff_dump_pheader(&ph, *buffer);
+  if (size < 12)
+      return 0;
   size-=12;
   n=rtsp_read_data(rtsp_session, (*buffer)+12, size);