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bpo-33930: Fix segfault with deep recursion when cleaning method objects (GH-27678)

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Pablo Galindo Salgado 2021-08-11 00:34:14 +01:00 • committed by GitHub
parent c0ab59f7de
commit bfc2d5a5c4
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3 changed files with 22 additions and 1 deletions
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6
Objects/methodobject.c
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@ -160,7 +160,10 @@ PyCMethod_GetClass(PyObject *op)
static void
meth_dealloc(PyCFunctionObject *m)
{
_PyObject_GC_UNTRACK(m);
// The Py_TRASHCAN mechanism requires that we be able to
// call PyObject_GC_UnTrack twice on an object.
PyObject_GC_UnTrack(m);
Py_TRASHCAN_BEGIN(m, meth_dealloc);
if (m->m_weakreflist != NULL) {
PyObject_ClearWeakRefs((PyObject*) m);
}
@ -170,6 +173,7 @@ meth_dealloc(PyCFunctionObject *m)
Py_XDECREF(m->m_self);
Py_XDECREF(m->m_module);
PyObject_GC_Del(m);
Py_TRASHCAN_END;
}
static PyObject *