diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 27c16364457336..f212d8169cc177 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -3623,6 +3623,13 @@ _asyncio_all_tasks_impl(PyObject *module, PyObject *loop)
         Py_DECREF(item);
     }
     Py_DECREF(eager_iter);
+
+    if (PyErr_Occurred()) {
+        Py_DECREF(tasks);
+        Py_DECREF(loop);
+        return NULL;
+    }
+
     int err = 0;
     ASYNCIO_STATE_LOCK(state);
     TaskObj *first = &state->asyncio_tasks.first;
@@ -3662,6 +3669,12 @@ _asyncio_all_tasks_impl(PyObject *module, PyObject *loop)
     }
     Py_DECREF(scheduled_iter);
     Py_DECREF(loop);
+
+    if (PyErr_Occurred()) {
+        Py_DECREF(tasks);
+        return NULL;
+    }
+
     return tasks;
 }
 
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 10fd3a982c36f4..4f0040df4f3017 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -264,6 +264,10 @@ framelocalsproxy_merge(PyObject* self, PyObject* other)
 
     Py_DECREF(iter);
 
+    if (PyErr_Occurred()) {
+        return -1;
+    }
+
     return 0;
 }
 
diff --git a/Objects/namespaceobject.c b/Objects/namespaceobject.c
index 5b7547103a2b3f..4ef3bd92f5a569 100644
--- a/Objects/namespaceobject.c
+++ b/Objects/namespaceobject.c
@@ -141,6 +141,10 @@ namespace_repr(PyObject *ns)
             goto error;
     }
 
+    if (PyErr_Occurred()) {
+        goto error;
+    }
+
     separator = PyUnicode_FromString(", ");
     if (separator == NULL)
         goto error;