bodgit / sevenzip / 26303217591

75%

main: 75%

Pull #456

github

fix(lzma2): prevent undefined bit shift overflow in dictionary calculation

- Validate that the LZMA2 dictionary property byte p[0] is <= 40 (maximum valid dictionary size of 4GB) in NewReader before calculating DictCap.
- Prevents an undefined bit shift overflow during runtime calculation when p[0] > 40.
- Source: https://en.wikipedia.org/wiki/LZMA#LZMA2_format

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