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