Potential fix for code scanning alert no. 3242: Multiplication result converted to larger type#132
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Potential fix for code scanning alert no. 3242: Multiplication result converted to larger type#132bniladridas wants to merge 1 commit into
bniladridas wants to merge 1 commit into
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… converted to larger type Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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☑️ I checked the pre-commit hooks and there was nothing to fix at commit |
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Combines all 15 automated code scanning alert fixes for multiplication result converted to larger type. These changes span `include/stb_image.h`, `include/stb_image_write.h`, and `src/preprocess.c` with consistent application of `size_t` casts to prevent integer overflow before conversion to larger types. Overflow checks are added where allocation sizes are stored back into `int` variables such as `out_size`. > [!NOTE] > Merging this pull request will automatically close #125, #126, #127, #128, #129, #130, #131, #132, #133, #134, #135, #136, #137, #138, #139 --------- Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com> Co-authored-by: Niladri Das <bniladridas@users.noreply.github.com>
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Fixed in #140 |
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Potential fix for https://github.com/bniladridas/hybrid-compute/security/code-scanning/3242
To fix this, force the multiplication to occur in
doublebefore callingpow, by casting one operand todouble(preferably the indexed sample value). This preserves behavior for normal inputs while eliminating the pre-promotion overflow risk flagged by CodeQL.In
include/stb_image.h, withinstbi__hdr_to_ldraround line 2087, update:pow(data[i * comp + k] * stbi__h2l_scale_i, stbi__h2l_gamma_i)pow((double)data[i * comp + k] * (double)stbi__h2l_scale_i, (double)stbi__h2l_gamma_i)No new imports or helper methods are required.
Suggested fixes powered by Copilot Autofix. Review carefully before merging.