[DVDnav-discuss] r1265 - trunk/libdvdnav/src/searching.c

[rathann]

Author: rathann
Date: Fri Oct  4 01:02:55 2013
New Revision: 1265

Log:
Make sure program_map is not NULL.

pgc->program_map should be checked before dereferencing. On the DVD
"Jack Reacher" this was discovered as a problem.

Bug discovery and suggested fix given by Cathy McDonald. Thanks!

Patch by Erik Hovland !erik#hovland$org%

Modified:
   trunk/libdvdnav/src/searching.c

Modified: trunk/libdvdnav/src/searching.c
==============================================================================
--- trunk/libdvdnav/src/searching.c	Fri Oct  4 00:43:52 2013	(r1264)
+++ trunk/libdvdnav/src/searching.c	Fri Oct  4 01:02:55 2013	(r1265)
@@ -625,6 +625,10 @@ uint32_t dvdnav_describe_title_chapters(
       printerr("PGC missing.");
       continue;
     }
+    if (pgc->program_map == NULL) {
+      printerr("Program map missing.");
+      continue;
+    }
     if(ptt[i].pgn > pgc->nr_of_programs) {
       printerr("WRONG part number.");
       goto fail;