demux_mkv: add missing invalid value check

Kacper Michajłow committed 1 year ago

Commit 442e21a1 parent d035a631 file · +3 −1Browse files

Unified · Split

demux/demux_mkv.c+3−1

@@ -3191,7 +3191,9 @@ static int read_next_block_into_queue(demuxer_t *demuxer) · 3190 unmodified lines
3191	3191	}
3192	3192
3193	3193	case MATROSKA_ID_BLOCKGROUP: {
3194		− int64_t end = ebml_read_length(s);
	3194	+ uint64_t end = ebml_read_length(s);
	3195	+ if (end == EBML_UINT_INVALID)
	3196	+ goto find_next_cluster;
3195	3197	end += stream_tell(s);
3196	3198	if (end > mkv_d->cluster_end)
3197	3199	goto find_next_cluster;