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gh-134070: Fix mi_clz32/mi_ctz32 to prevent out-of-bounds read (GH-134149)#134157
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gh-134070: Fix mi_clz32/mi_ctz32 to prevent out-of-bounds read (pytho…
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2025-05-17-16-45-00.gh-issue-134070.vdhoke.rst
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2025-05-17-16-45-00.gh-issue-134070.vdhoke.rst
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1 change: 0 additions & 1 deletionMisc/NEWS.d/next/Core_and_Builtins/2025-05-17-16-45-00.gh-issue-134070.vdhoke.rst
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.. gh-issue: 134070 | ||
.. section: Core and Builtins | ||
Fixed an out-of-bounds read in the generic implementation of `mi_clz32` and `mi_ctz32` in the integrated mimalloc allocator. This bug could occur on platforms with 64-bit `unsigned long` values. Based on upstream fix from microsoft/mimalloc. |
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