diff options
| author | Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> | 2022-06-19 06:06:37 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-06-19 06:06:37 (GMT) |
| commit | 726448ebe15cd78e180c29c9858cb6c10a581524 (patch) | |
| tree | dca1e7b05353711ab647074d9a8773669b2b73c1 /Objects | |
| parent | 6066f450b91f1cbebf33a245c14e660052ccd90a (diff) | |
| download | cpython-726448ebe15cd78e180c29c9858cb6c10a581524.zip cpython-726448ebe15cd78e180c29c9858cb6c10a581524.tar.gz cpython-726448ebe15cd78e180c29c9858cb6c10a581524.tar.bz2 | |
GH-93990: fix refcounting bug in `add_subclass` in `typeobject.c` (GH-93989)
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/typeobject.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Objects/typeobject.c b/Objects/typeobject.c index 5130551..1236acd 100644 --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -6671,8 +6671,11 @@ add_subclass(PyTypeObject *base, PyTypeObject *type) PyObject *subclasses = base->tp_subclasses; if (subclasses == NULL) { base->tp_subclasses = subclasses = PyDict_New(); - if (subclasses == NULL) + if (subclasses == NULL) { + Py_DECREF(key); + Py_DECREF(ref); return -1; + } } assert(PyDict_CheckExact(subclasses)); |