1 files changed, 5 insertions, 0 deletions
diff --git a/Objects/odictobject.c b/Objects/odictobject.c
index 4eb15f9..6c7f117 100644
--- a/Objects/odictobject.c
+++ b/Objects/odictobject.c
@@ -1814,6 +1814,11 @@ odictiter_iternext(odictiterobject *di)
         Py_INCREF(result);
         Py_DECREF(PyTuple_GET_ITEM(result, 0));  /* borrowed */
         Py_DECREF(PyTuple_GET_ITEM(result, 1));  /* borrowed */
+        // bpo-42536: The GC may have untracked this result tuple. Since we're
+        // recycling it, make sure it's tracked again:
+        if (!_PyObject_GC_IS_TRACKED(result)) {
+            _PyObject_GC_TRACK(result);
+        }
     }
     else {
         result = PyTuple_New(2);