[vlc-commits] demux:mkv: prevent a crash with multiple edition files

[Steve Lhomme]

vlc | branch: master | Steve Lhomme <robux4 at ycbcr.xyz> | Thu Feb 22 17:53:00 2018 +0100| [df043b5d4531ad1d60580a44b58a338d0b99e6c4] | committer: Steve Lhomme

demux:mkv: prevent a crash with multiple edition files

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=df043b5d4531ad1d60580a44b58a338d0b99e6c4
---

 modules/demux/mkv/demux.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/demux/mkv/demux.cpp b/modules/demux/mkv/demux.cpp
index 36c4d35889..5665af76ff 100644
--- a/modules/demux/mkv/demux.cpp
+++ b/modules/demux/mkv/demux.cpp
@@ -616,6 +616,9 @@ bool demux_sys_t::PreloadLinked()
     if ( !p_current_vsegment )
         return false;
 
+    if ( unlikely(p_current_vsegment->CurrentEdition() == NULL) )
+        return false;
+
     /* Set current chapter */
     p_current_vsegment->p_current_vchapter = p_current_vsegment->CurrentEdition()->getChapterbyTimecode(0);
     msg_Dbg( &demuxer, "NEW START CHAPTER uid=%" PRId64, p_current_vsegment->p_current_vchapter && p_current_vsegment->p_current_vchapter->p_chapter ?