INFO: task kworker/u8:9:596 blocked for more than 153 seconds.
      Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:9    state:D stack:0     pid:596   tgid:596   ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events_power_efficient reg_check_chans_work
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T)
 context_switch kernel/sched/core.c:5396 [inline]
 __schedule+0x1414/0x2a28 kernel/sched/core.c:6785
 __schedule_loop kernel/sched/core.c:6863 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6878
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935
 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
 class_wiphy_constructor include/net/cfg80211.h:6062 [inline]
 reg_leave_invalid_chans net/wireless/reg.c:2471 [inline]
 reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3402
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847

Showing all locks held in the system:
1 lock held by kthreadd/2:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/14:
2 locks held by kworker/1:0/24:
1 lock held by khungtaskd/32:
 #0: ffff80008f819e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
3 locks held by kworker/u8:2/41:
2 locks held by kworker/u8:3/42:
1 lock held by pr/ttyAMA0/43:
3 locks held by kworker/u8:4/60:
3 locks held by kworker/u8:5/179:
4 locks held by kworker/u8:6/485:
3 locks held by kworker/u8:7/530:
3 locks held by kworker/u8:8/573:
4 locks held by kworker/u8:9/596:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009c9f7bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
 #3: ffff0000f2350768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline]
 #3: ffff0000f2350768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2471 [inline]
 #3: ffff0000f2350768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486
3 locks held by kworker/u8:10/633:
3 locks held by kworker/u8:11/690:
3 locks held by kworker/u8:12/766:
3 locks held by kworker/u8:13/852:
3 locks held by kworker/u8:14/2559:
3 locks held by kworker/u8:15/2669:
3 locks held by kworker/0:2/3917:
 #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a06b7bc0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/R-ipv6_/4171:
 #0: ffff0000d26db948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a1e07ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
1 lock held by klogd/6128:
3 locks held by udevd/6139:
1 lock held by dhcpcd/6194:
 #0: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x710/0x15dc net/core/rtnetlink.c:4054
2 locks held by getty/6292:
 #0: ffff0000d64210a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b9be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
1 lock held by syz-executor/6523:
1 lock held by syz-executor/6524:
2 locks held by syz-executor/6525:
3 locks held by kworker/1:4/6596:
2 locks held by kworker/0:6/6636:
2 locks held by kworker/0:8/6668:
2 locks held by syz-executor/7611:
3 locks held by kworker/u8:16/7869:
1 lock held by dhcpcd/8416:
2 locks held by kworker/u8:17/8417:
3 locks held by kworker/u8:18/8418:
5 locks held by kworker/u8:19/8419:
3 locks held by syz-executor/8420:

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