https://github.com/python/cpython/commit/c81609e44eed641d3b8a137daa31ef35501c1f85 commit: c81609e44eed641d3b8a137daa31ef35501c1f85 branch: master author: Hai Shi <shihai1992 at gmail.com> committer: GitHub <noreply at github.com> date: 2020年03月15日T19:37:49Z summary: Fix a possible refleak in tupleobject.c (GH-19018) files: M Objects/tupleobject.c diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c index 14ab53fca2270..839667ad6f173 100644 --- a/Objects/tupleobject.c +++ b/Objects/tupleobject.c @@ -737,8 +737,10 @@ tuple_subtype_new(PyTypeObject *type, PyObject *iterable) return NULL; assert(PyTuple_Check(tmp)); newobj = type->tp_alloc(type, n = PyTuple_GET_SIZE(tmp)); - if (newobj == NULL) + if (newobj == NULL) { + Py_DECREF(tmp); return NULL; + } for (i = 0; i < n; i++) { item = PyTuple_GET_ITEM(tmp, i); Py_INCREF(item);