From e8920a6f5fbbceef8ea8b430ea082c9688ac58fc Mon Sep 17 00:00:00 2001 From: Fabian Keil Date: Sat, 14 Jul 2012 00:13:19 +0200 Subject: [PATCH 3/3] Let dvdnav_describe_title_chapters() skip PGCs with a cell number of zero In this case pgc->program_map can be invalid and accessing it results in a core dump due to SIGBUS. --- src/searching.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/searching.c b/src/searching.c index 96c5c7f..4c3fb2f 100644 --- a/src/searching.c +++ b/src/searching.c @@ -630,6 +630,10 @@ uint32_t dvdnav_describe_title_chapters(dvdnav_t *this, int32_t title, uint64_t goto fail; } + if (pgc->nr_of_cells == 0) { + printerr("Number of cells cannot be 0"); + continue; + } if ((cellnr = pgc->program_map[ptt[i].pgn-1]) == 0) { printerr("Cell new row cannot be 0"); continue; -- 1.7.10.3