diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 98c4cf8182cf2a1712060d5106eaa9abb2d18344..4554cde2f6f96293be4636fb6e191f3dc0d98096 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2514,6 +2514,10 @@ static struct rq *finish_task_switch(struct task_struct *prev)
 	 *
 	 * Also, see FORK_PREEMPT_COUNT.
 	 */
+	if (WARN_ONCE(preempt_count() != 2*PREEMPT_DISABLE_OFFSET,
+		      "corrupted preempt_count: %s/%d/0x%x\n",
+		      current->comm, current->pid, preempt_count()))
+		preempt_count_set(FORK_PREEMPT_COUNT);
 
 	rq->prev_mm = NULL;