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add size check to chunk datalen

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This commit is contained in:
Joel Wetzell
2026-05-20 17:44:01 -05:00
parent 145c13a976
commit 2df4cd56f7
1 changed files with 4 additions and 0 deletions
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internal/decoders/chunk.go
+4
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@@ -30,6 +30,10 @@ func DecodeChunk(bytes []byte) (chunks.Chunk, error) {
HasSubchunks: has_subchunks, HasSubchunks: has_subchunks,
} }
if len(bytes) < 4+int(header.DataLen) {
return chunks.Chunk{}, errors.New("chunk data length is greater than the number of bytes")
}
chunk_data := bytes[4 : 4+header.DataLen] chunk_data := bytes[4 : 4+header.DataLen]
return chunks.Chunk{ return chunks.Chunk{