OSV-2026-455 UNKNOWN READ in mkv::matroska_segment_c::TrackInit

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=495498906 Crash type: UNKNOWN READ Crash state: mkv::matroskasegmentc::TrackInit mkv::matroskasegmentc::TrackInit mkv::matroskasegmentc::ParseTrackEntry...

PT-2026-30299

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=495498906 Crash type: UNKNOWN READ Crash state: mkv::matroska segment c::TrackInit mkv::matroska segment c::TrackInit mkv::matroska segment c::ParseTrackEntry...

PT-2026-27458

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=475261418 Crash type: Heap-buffer-overflow READ 1 Crash state: mkv::matroska segment c::TrackInit mkv::matroska segment c::TrackInit mkv::matroska segment c::ParseTrackEntry...