Issue #19437: Fix GetKeepedObjects() of ctypes, handle PyCData_GetContainer()

failure

diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index 3744691f920ce5db52498971ecce23b49ceea087..343d0146ab9436fa980622b89c912f7f43d51f9f 100644 (file)
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -2344,7 +2344,11 @@ PyCData_GetContainer(CDataObject *self)
 static PyObject *
 GetKeepedObjects(CDataObject *target)
 {
-    return PyCData_GetContainer(target)->b_objects;
+    CDataObject *container;
+    container = PyCData_GetContainer(target);
+    if (container == NULL)
+        return NULL;
+    return container->b_objects;
 }
 
 static PyObject *