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Title: gh-146386:`modsupport.c` Missing `va_end` in `_abiinfo_raise` by A0su · Pull Request #146387 · python/cpython · GitHub

Open Graph Title: gh-146386:`modsupport.c` Missing `va_end` in `_abiinfo_raise` by A0su · Pull Request #146387 · python/cpython

X Title: gh-146386:`modsupport.c` Missing `va_end` in `_abiinfo_raise` by A0su · Pull Request #146387 · python/cpython

Description: modsupport.c: Missing va_end in _abiinfo_raise va_start(vargs, format) at line 689 but va_end(vargs) never called on any path. UB per C99 7.15.1. This is a sub-issue of #146102 with original gist details va_end was added at the two exit points. Issue: gh-146386

Open Graph Description: modsupport.c: Missing va_end in _abiinfo_raise va_start(vargs, format) at line 689 but va_end(vargs) never called on any path. UB per C99 7.15.1. This is a sub-issue of #146102 with original gist d...

X Description: modsupport.c: Missing va_end in _abiinfo_raise va_start(vargs, format) at line 689 but va_end(vargs) never called on any path. UB per C99 7.15.1. This is a sub-issue of #146102 with original gist d...

Opengraph URL: https://github.com/python/cpython/pull/146387

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2999783 add missing var_end calls at exit points A0su Mar 24, 2026 https://github.com/python/cpython/pull/146387/commits/2999783a51d0a38f9552c7a9d6c0d876d55f14db
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