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[3.13] gh-141370: Fix undefined behavior when using Py_ABS() (GH-141548) (#142304)

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(cherry picked from commit 706fdda8b3)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
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Serhiy Storchaka 2025-12-05 17:52:12 +02:00 • committed by GitHub
parent 9303573c74
commit 93d5c481af
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5 changed files with 42 additions and 2 deletions
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Python/pystrhex.c
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@ -42,8 +42,7 @@ static PyObject *_Py_strhex_impl(const char* argbuf, const Py_ssize_t arglen,
else {
bytes_per_sep_group = 0;
}
unsigned int abs_bytes_per_sep = Py_ABS(bytes_per_sep_group);
unsigned int abs_bytes_per_sep = _Py_ABS_CAST(unsigned int, bytes_per_sep_group);
Py_ssize_t resultlen = 0;
if (bytes_per_sep_group && arglen > 0) {
/* How many sep characters we'll be inserting. */