diff --git a/tests/hwsim/test_wpas_ctrl.py b/tests/hwsim/test_wpas_ctrl.py
index bb138faa9..eb5d11318 100644
--- a/tests/hwsim/test_wpas_ctrl.py
+++ b/tests/hwsim/test_wpas_ctrl.py
@@ -1874,6 +1874,11 @@ def test_wpas_ctrl_sched_scan_plans(dev, apdev):
     """wpa_supplicant sched_scan_plans parsing"""
     dev[0].request("SET sched_scan_plans foo")
     dev[0].request("SET sched_scan_plans 10:100 20:200 30")
+    with alloc_fail(dev[0], 1, "wpas_sched_scan_plans_set"):
+        dev[0].request("SET sched_scan_plans 10:100")
+    dev[0].request("SET sched_scan_plans 4294967295:0")
+    dev[0].request("SET sched_scan_plans 1 1")
+    dev[0].request("SET sched_scan_plans  ")
     dev[0].request("SET sched_scan_plans ")
 
 def test_wpas_ctrl_signal_monitor(dev, apdev):