pythongh-121660: Fix ga_getitem by explicitly checking for NULL r…

…esult
sobolevn · Jul 13, 2024 · b511efc · b511efc
1 parent e6264b4
commit b511efc
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Objects/genericaliasobject.c b/Objects/genericaliasobject.c
@@ -563,6 +563,10 @@ ga_getitem(PyObject *self, PyObject *item)
     }
 
     PyObject *res = Py_GenericAlias(alias->origin, newargs);
+    if (res == NULL) {
+        Py_DECREF(newargs);
+        return NULL;
+    }
     ((gaobject *)res)->starred = alias->starred;
 
     Py_DECREF(newargs);