https://github.com/python/cpython/commit/000b9e803a7ec067da0a43f9a3fec16f107... commit: 000b9e803a7ec067da0a43f9a3fec16f1078215a branch: 3.10 author: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> committer: pablogsal <Pablogsal@gmail.com> date: 2021-07-03T21:51:10+01:00 summary: bpo-44553: Correct failure in tp_new for the union object (GH-27008) (GH-27009) (cherry picked from commit bc3961485639cc73de7c4c7eed1b56f3c74939bf) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> files: M Objects/unionobject.c diff --git a/Objects/unionobject.c b/Objects/unionobject.c index cc7181d2475ca..8435763b5ea7c 100644 --- a/Objects/unionobject.c +++ b/Objects/unionobject.c @@ -490,10 +490,10 @@ _Py_Union(PyObject *args) } result->args = dedup_and_flatten_args(args); + _PyObject_GC_TRACK(result); if (result->args == NULL) { - PyObject_GC_Del(result); + Py_DECREF(result); return NULL; } - _PyObject_GC_TRACK(result); return (PyObject*)result; }