# Bug report ### Bug description: # Bug Report ### 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 https://github.com/python/cpython/issues/146102 with original [gist details](https://gist.github.com/devdanzin/d1a6ab9f62970be0cae139366ce3c482) ### CPython versions tested on: CPython main branch ### Operating systems tested on: Windows <!-- gh-linked-prs --> ### Linked PRs * gh-146387 <!-- /gh-linked-prs -->
Bug report
Bug description:
Bug Report
modsupport.c: Missing va_end in _abiinfo_raise
va_start(vargs, format)at line 689 butva_end(vargs)never called on any path. UB per C99 7.15.1.This is a sub-issue of #146102 with original gist details
CPython versions tested on:
CPython main branch
Operating systems tested on:
Windows
Linked PRs
modsupport.cMissingva_endin_abiinfo_raise#146387