INFO: task kworker/0:6:5528 blocked for more than 167 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6     state:D stack:0     pid:5528  tgid:5528  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events reg_todo
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T)
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7283
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x4fc/0xed0 kernel/locking/mutex.c:820
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873
 class_wiphy_constructor include/net/cfg80211.h:6646 [inline]
 reg_process_self_managed_hints+0x94/0x1c0 net/wireless/reg.c:3192
 reg_todo+0x60c/0x6a4 net/wireless/reg.c:3205
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
INFO: task kworker/u8:21:5646 blocked for more than 147 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:21   state:D stack:0     pid:5646  tgid:5646  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events_power_efficient crda_timeout_work
Call trace:
 __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T)
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1c04/0x2db8 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x13c/0x20c kernel/sched/core.c:7283
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x4fc/0xed0 kernel/locking/mutex.c:820
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873
 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
 crda_timeout_work+0x20/0x90 net/wireless/reg.c:529
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842

Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
2 locks held by kworker/1:1/26:
1 lock held by khungtaskd/31:
 #0: ffff800088bf70c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 #0: ffff800088bf70c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffff800088bf70c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 kernel/locking/lockdep.c:6775
6 locks held by kworker/u8:4/270: