[vlc-commits] [Git][videolan/vlc][master] demux: mkv: Prevent leak in ParseTrackEntry

[Steve Lhomme (@robUx4)]

Steve Lhomme pushed to branch master at VideoLAN / VLC


Commits:
2df6bca6 by Mathias APARICIO at 2026-01-23T11:28:57+00:00
demux: mkv: Prevent leak in ParseTrackEntry

Oss-fuzz 4605658287898624 highlights a memory leak in the
KaxCompSettings handler.

Delete the pointer vars.tk->p_compression_data before allocating again
so it is not overwritten.

Address https://code.videolan.org/videolan/vlc/-/issues/29561

- - - - -


1 changed file:

- modules/demux/mkv/matroska_segment_parse.cpp


Changes:

=====================================
modules/demux/mkv/matroska_segment_parse.cpp
=====================================
@@ -478,6 +478,7 @@ void matroska_segment_c::ParseTrackEntry( const KaxTrackEntry *m )
         }
         E_CASE( KaxContentCompSettings, kccs )
         {
+            delete vars.tk->p_compression_data;
             vars.tk->p_compression_data = new KaxContentCompSettings( kccs );
         }
         E_CASE( KaxTrackVideo, tkv )



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/2df6bca67b6ebbdcd336cfe7bc88faca14ec2da6

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/2df6bca67b6ebbdcd336cfe7bc88faca14ec2da6
You're receiving this email because of your account on code.videolan.org.


VideoLAN code repository instance