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Add strict slice range validation, fix RF64 reading error (fixes #146)

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Vanilagy
2025-09-25 10:26:44 +02:00
parent a043f410fd
commit 537119357d
5 changed files with 61 additions and 10 deletions
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src/wave/wave-demuxer.ts
+6 -2
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@@ -102,8 +102,12 @@ export class WaveDemuxer extends Demuxer {
} else if (chunkId === 'ds64') {
// File and data chunk sizes are defined in here instead
const riffChunkSize = readU64(slice, littleEndian);
dataChunkSize = readU64(slice, littleEndian);
let ds64Slice = this.reader.requestSlice(startPos, chunkSize);
if (ds64Slice instanceof Promise) ds64Slice = await ds64Slice;
if (!ds64Slice) break;
const riffChunkSize = readU64(ds64Slice, littleEndian);
dataChunkSize = readU64(ds64Slice, littleEndian);
totalFileSize = Math.min(riffChunkSize + 8, this.reader.fileSize ?? Infinity);
} else if (chunkId === 'LIST') {