gh-104454: Fix refleak in AttributeError_reduce (#104455)

csm10495 · Eclips4 · web-flow · commit 7d2deafb7323 · 2023-05-13T13:45:36.000-07:00
* Fix the reference leak introduced by #103333 Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
@@ -2324,7 +2324,9 @@ AttributeError_reduce(PyAttributeErrorObject *self, PyObject *Py_UNUSED(ignored)
         return NULL;
     }
 
-    return PyTuple_Pack(3, Py_TYPE(self), self->args, state);
+    PyObject *return_value = PyTuple_Pack(3, Py_TYPE(self), self->args, state);
+    Py_DECREF(state);
+    return return_value;
 }
 
 static PyMemberDef AttributeError_members[] = {

Original file line number	Diff line number	Diff line change
`@@ -2324,7 +2324,9 @@ AttributeError_reduce(PyAttributeErrorObject self, PyObject Py_UNUSED(ignored)`
`2324`	`2324`	`return NULL;`
`2325`	`2325`	`}`
`2326`	`2326`
`2327`		`- return PyTuple_Pack(3, Py_TYPE(self), self->args, state);`
	`2327`	`+ PyObject *return_value = PyTuple_Pack(3, Py_TYPE(self), self->args, state);`
	`2328`	`+ Py_DECREF(state);`
	`2329`	`+ return return_value;`
`2328`	`2330`	`}`
`2329`	`2331`
`2330`	`2332`	`static PyMemberDef AttributeError_members[] = {`