Steve Lhomme pushed to branch master at VideoLAN / VLC
Commits:
8e209b17 by Steve Lhomme at 2026-05-16T16:04:40+00:00
demux: mkv: avoid potential constant overflow
We never use this code to start reading an EBML/Matroska stream but better safe
than sorry.
CID #1692707
- - - - -
1 changed file:
- modules/demux/mkv/Ebml_parser.cpp
Changes:
=====================================
modules/demux/mkv/Ebml_parser.cpp
=====================================
@@ -228,7 +228,7 @@ next:
// If the parent is a segment, use the segment context when creating
children
// (to prolong their lifetime), otherwise just continue as normal
EbmlSemanticContext e_context =
- EBML_CTX_MASTER( EBML_CONTEXT(m_el[mi_level - 1]) ) ==
EBML_CTX_MASTER( Context_KaxSegmentVLC )
+ (mi_level == 0 || EBML_CTX_MASTER( EBML_CONTEXT(m_el[mi_level
- 1]) ) == EBML_CTX_MASTER( Context_KaxSegmentVLC ))
? Context_KaxSegmentVLC
: EBML_CONTEXT(m_el[mi_level - 1]);
View it on GitLab:
https://code.videolan.org/videolan/vlc/-/commit/8e209b172e3d53503e45294d525cd2b287a62bb2
--
View it on GitLab:
https://code.videolan.org/videolan/vlc/-/commit/8e209b172e3d53503e45294d525cd2b287a62bb2
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