gh-116180: check if globals is NULL and set error in run_eval_code_obj()

Python/pythonrun.c

@@ -1288,6 +1288,11 @@ run_eval_code_obj(PyThreadState *tstate, PyCodeObject *co, PyObject *globals, Py
         }
     }
 
+    if (globals == NULL) {
+        PyErr_SetString(PyExc_RuntimeError, "globals are NULL");
+        return NULL;
+    }
+
     v = PyEval_EvalCode((PyObject*)co, globals, locals);
     if (!v && _PyErr_Occurred(tstate) == PyExc_KeyboardInterrupt) {
         _PyRuntime.signals.unhandled_keyboard_interrupt = 1;