diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 0f349d8d076d499d690193fb0f51a2fa7776599f..ca868c04ff249250b8e74bbafd93765fd67ab19d 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1941,6 +1941,9 @@ static int push_rt_task(struct rq *rq)
 		goto retry;
 	}
 
+	if (unlikely(!cpu_online(lowest_rq->cpu)))
+		goto out;
+
 	deactivate_task(rq, next_task, 0);
 	set_task_cpu(next_task, lowest_rq->cpu);
 	activate_task(lowest_rq, next_task, 0);