bpo-33391: Fix refleak in set_symmetric_difference (GH-6670) · python/cpython@6a56790 (original) (raw)

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Misc/NEWS.d/next/Core and Builtins

2 files changed

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Original file line number	Diff line number	Diff line change
@@ -0,0 +1 @@
	1	+Fix a leak in set_symmetric_difference().

Original file line number	Diff line number	Diff line change
@@ -1744,8 +1744,10 @@ set_symmetric_difference(PySetObject so, PyObject other)
1744	1744	if (otherset == NULL)
1745	1745	return NULL;
1746	1746	rv = set_symmetric_difference_update(otherset, (PyObject *)so);
1747		-if (rv == NULL)
	1747	+if (rv == NULL) {
	1748	+Py_DECREF(otherset);
1748	1749	return NULL;
	1750	+ }
1749	1751	Py_DECREF(rv);
1750	1752	return (PyObject *)otherset;
1751	1753	}