INFO: task kworker/0:4:6542 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc1-syzkaller-g19272b37aa4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4     state:D stack:0     pid:6542  tgid:6542  ppid:2      task_flags:0x4208060 flags:0x00000010
Workqueue: events reg_todo
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (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_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209
 reg_todo+0x834/0x968 net/wireless/reg.c:3222
 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: ffff80008f749e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
3 locks held by kworker/u8:2/41:
3 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/u8:5/172:
3 locks held by kworker/u8:6/241:
3 locks held by kworker/R-ipv6_/4132:
 #0: ffff0000d2b10148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a20f7ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092768868 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/R-bat_e/4213:
3 locks held by kworker/u8:7/4503:
2 locks held by udevd/6101:
1 lock held by dhcpcd/6155:
1 lock held by dhcpcd/6156:
2 locks held by getty/6244:
 #0: ffff0000d76e80a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b8db2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
1 lock held by udevd/6476:
2 locks held by syz-executor/6484:
1 lock held by syz-executor/6486:
4 locks held by udevd/6489:
4 locks held by kworker/0:4/6542:
 #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a0c47bc0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092768868 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
 #3: ffff0000d1708768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline]
 #3: ffff0000d1708768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209
2 locks held by kworker/0:6/6556:
2 locks held by kworker/1:3/6563:
4 locks held by kworker/u8:8/6590:
3 locks held by kworker/1:4/6599:
3 locks held by udevd/6648:
2 locks held by udevd/7082:
2 locks held by syz.4.631/8224:
3 locks held by kworker/u8:9/8243:
3 locks held by kworker/u8:10/8245:
3 locks held by kworker/u8:11/8247:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009e2a7bc0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092768868 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:12/8249:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009ea37bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092768868 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by syz-executor/8251:

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