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[3.12] gh-116296: Fix refleak in reduce_newobj() corner case (GH-116297) (#116299)

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(cherry picked from commit 17c4849981905fb1c9bfbb2b963b6ee12e3efb2c)

Co-authored-by: Erlend E. Aasland <erlend@python.org>
Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
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Miss Islington (bot) 2024-03-04 11:04:44 +01:00 committed by GitHub
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Misc/NEWS.d/next/Core and Builtins/2024-03-04-10-19-51.gh-issue-116296.gvtxyU.rst Normal file
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@ -0,0 +1 @@
Fix possible refleak in :meth:`!object.__reduce__` internal error handling.

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Objects/typeobject.c
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@ -6258,6 +6258,7 @@ reduce_newobj(PyObject *obj)
}
else {
/* args == NULL */
Py_DECREF(copyreg);
Py_DECREF(kwargs);
PyErr_BadInternalCall();
return NULL;