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bpo-33391: Fix refleak in set_symmetric_difference (GH-6670) 

(cherry picked from commit 491bbedc20)

Co-authored-by: lekma <lekmalek@gmail.com>
This commit is contained in:
Miss Islington (bot) 2018-05-02 02:50:48 -07:00 committed by GitHub
parent 01e19f8fed
commit 6a56790e0b
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2 changed files with 4 additions and 1 deletions
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1
Misc/NEWS.d/next/Core and Builtins/2018-05-02-08-36-03.bpo-33391.z4a7rb.rst Normal file
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@ -0,0 +1 @@
Fix a leak in set_symmetric_difference().

4
Objects/setobject.c
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@ -1744,8 +1744,10 @@ set_symmetric_difference(PySetObject *so, PyObject *other)
if (otherset == NULL)
return NULL;
rv = set_symmetric_difference_update(otherset, (PyObject *)so);
if (rv == NULL)
if (rv == NULL) {
Py_DECREF(otherset);
return NULL;
}
Py_DECREF(rv);
return (PyObject *)otherset;
}