INFO: task kworker/u8:14:6273 blocked for more than 166 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:14   state:D stack:0     pid:6273  tgid:6273  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events_power_efficient reg_check_chans_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
 class_wiphy_constructor include/net/cfg80211.h:6646 [inline]
 reg_leave_invalid_chans net/wireless/reg.c:2454 [inline]
 reg_check_chans_work+0x144/0x10e8 net/wireless/reg.c:2469
 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:
2 locks held by kworker/0:0/9:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/15:
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
2 locks held by kworker/u8:2/39:
2 locks held by kworker/u8:3/40:
3 locks held by kworker/0:2/1027:
 #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x734/0x10b8 kernel/workqueue.c:3397
 #1: ffff800094bf7c40 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #1: ffff800094bf7c40 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x73c/0x10b8 kernel/workqueue.c:3397
 #2: ffff800089cca300 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
4 locks held by kworker/u8:4/1072:
3 locks held by kworker/u8:5/1917:
4 locks held by kworker/u8:6/1955:
2 locks held by kworker/u8:7/1957:
3 locks held by kworker/u8:8/1959:
1 lock held by udevd/4339:
1 lock held by dhcpcd/4396:
2 locks held by getty/4488:
 #0: ffff0000c9bc40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff8000923ab2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}
, at: n_tty_read+0x348/0xf70 drivers/tty/n_tty.c:2211
2 locks held by kworker/1:3/4589:
1 lock held by syz-executor/4707:
1 lock held by syz-executor/4716:
4 locks held by kworker/1:4/4765:
 #0: ffff0000cb804140 ((wq_completion)wg-kex-wg1#6){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #0: ffff0000cb804140 ((wq_completion)wg-kex-wg1#6){+.+.}-{0:0}, at: process_scheduled_works+0x734/0x10b8 kernel/workqueue.c:3397
 #1: ffff800096e47c40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #1: ffff800096e47c40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_scheduled_works+0x73c/0x10b8 kernel/workqueue.c:3397
 #2: ffff0000cb5bd3c0 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_response+0x15c/0x56c drivers/net/wireguard/noise.c:742
 #3: ffff0000d88834b8 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_response+0x1d0/0x56c drivers/net/wireguard/noise.c:753
2 locks held by kworker/1:6/4801:
2 locks held by udevd/5162:
2 locks held by udevd/5167:
1 lock held by udevd/5789:
2 locks held by syz-executor/5840:
4 locks held by kworker/u8:9/6267:
 #0: ffff0000c004e140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #0: ffff0000c004e140 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x734/0x10b8 kernel/workqueue.c:3397
 #1: ffff8000933a7c40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #1: ffff8000933a7c40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x73c/0x10b8 kernel/workqueue.c:3397
 #2: ffff800089cbce08 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x104/0x6c4 net/core/net_namespace.c:673
 #3: ffff800089cca300 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:10/6269:
2 locks held by kworker/u8:11/6270:
2 locks held by kworker/u8:13/6272:
4 locks held by kworker/u8:14/6273:
 #0: ffff0000c004b940 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #0: ffff0000c004b940 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x734/0x10b8 kernel/workqueue.c:3397
 #1: ffff800093417c40 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #1: ffff800093417c40 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x73c/0x10b8 kernel/workqueue.c:3397
 #2: ffff800089cca300 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
 #3: ffff0000e03b0780 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6646 [inline]
 #3: ffff0000e03b0780 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2454 [inline]
 #3: ffff0000e03b0780 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x144/0x10e8 net/wireless/reg.c:2469
3 locks held by kworker/u8:15/6278:
2 locks held by kworker/u8:16/6280:
3 locks held by kworker/u8:18/6406:
3 locks held by kworker/u8:19/6407:
3 locks held by kworker/u8:20/6408:
3 locks held by kworker/u8:21/6409:
3 locks held by kworker/u8:22/6410:
3 locks held by kworker/u8:23/6411:
3 locks held by kworker/u8:24/6412:
3 locks held by kworker/u8:26/6414:
3 locks held by kworker/u8:28/6416:
3 locks held by kworker/u8:30/6418:
3 locks held by kworker/u8:31/6422:
3 locks held by kworker/u8:32/6423:
3 locks held by kworker/u8:34/6425:
 #0: ffff0000cf3ec140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #0: ffff0000cf3ec140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x734/0x10b8 kernel/workqueue.c:3397
 #1: ffff800093ed7c40 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline]
 #1: ffff800093ed7c40 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x73c/0x10b8 kernel/workqueue.c:3397
 #2: ffff800089cca300 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:35/6426:
2 locks held by kworker/1:9/7073:
3 locks held by syz-executor/7076:

=============================================