Re: [syzbot] [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem

[syzbot]

For archival purposes, forwarding an incoming command email to
linux-kernel@xxxxxxxxxxxxxxx.

***

Subject: [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem
Author: lizhi.xu@xxxxxxxxxxxxx

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fe46a7dd189e

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index d44efa0d0611..07a3c1d2c2d8 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5676,7 +5676,7 @@ void scheduler_tick(void)
 
 	sched_clock_tick();
 
-	rq_lock(rq, &rf);
+	rq_lock_irqsave(rq, &rf);
 
 	update_rq_clock(rq);
 	thermal_pressure = arch_scale_thermal_pressure(cpu_of(rq));
@@ -5688,7 +5688,7 @@ void scheduler_tick(void)
 	sched_core_tick(rq);
 	task_tick_mm_cid(rq, curr);
 
-	rq_unlock(rq, &rf);
+	rq_unlock_irqrestore(rq, &rf);
 
 	if (sched_feat(LATENCY_WARN) && resched_latency)
 		resched_latency_warn(cpu, resched_latency);