Fix code scanning alert no. 50: Size computation for allocation may overflow #1088
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…verflow Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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…verflow (wavetermdev#1088) Fixes [https://github.com/wavetermdev/waveterm/security/code-scanning/50](https://github.com/wavetermdev/waveterm/security/code-scanning/50) To fix the problem, we need to ensure that the size computation for the allocation does not overflow. This can be achieved by validating the length of `barr` before performing the arithmetic operation. We will set a maximum allowable size for `barr` to ensure that the sum of `oscPrefixLen(oscNum)` and `len(barr)` does not exceed the maximum value for an `int`. 1. Define a maximum allowable size for `barr` (e.g., 64 MB). 2. Check the length of `barr` against this maximum size before performing the allocation. 3. If `barr` exceeds the maximum size, return an error. _Suggested fixes powered by Copilot Autofix. Review carefully before merging._ --------- Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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Fixes https://github.com/wavetermdev/waveterm/security/code-scanning/50
To fix the problem, we need to ensure that the size computation for the allocation does not overflow. This can be achieved by validating the length of
barrbefore performing the arithmetic operation. We will set a maximum allowable size forbarrto ensure that the sum ofoscPrefixLen(oscNum)andlen(barr)does not exceed the maximum value for anint.barr(e.g., 64 MB).barragainst this maximum size before performing the allocation.barrexceeds the maximum size, return an error.Suggested fixes powered by Copilot Autofix. Review carefully before merging.