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[3.13] gh-134100: Fix use-after-free in PyImport_ImportModuleLevelObject (GH-134117) (#134172)

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gh-134100: Fix use-after-free in `PyImport_ImportModuleLevelObject` (GH-134117)
(cherry picked from commit 4e9005d32f)

Co-authored-by: Nico-Posada <102486290+Nico-Posada@users.noreply.github.com>
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Miss Islington (bot) 2025-05-18 17:08:28 +02:00 • committed by GitHub
parent fd6a602d04
commit 523024499e
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3 changed files with 20 additions and 1 deletions
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4
Python/import.c
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@ -3830,15 +3830,17 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals,
}
final_mod = import_get_module(tstate, to_return);
Py_DECREF(to_return);
if (final_mod == NULL) {
if (!_PyErr_Occurred(tstate)) {
_PyErr_Format(tstate, PyExc_KeyError,
"%R not in sys.modules as expected",
to_return);
}
Py_DECREF(to_return);
goto error;
}
Py_DECREF(to_return);
}
}
else {