INFO: task kworker/1:0:17 blocked for more than 143 seconds.
      Not tainted 5.7.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:0     D23000    17      2 0x80004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch kernel/sched/core.c:3367 [inline]
 __schedule+0x892/0x1d80 kernel/sched/core.c:4083
 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599
 __sched_text_start+0x8/0x8
 mark_held_locks+0xe0/0xe0 kernel/locking/lockdep.c:3620
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline]
 lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702
 schedule+0xcd/0x2b0 kernel/sched/core.c:4158
 schedule_timeout+0x501/0x7d0 kernel/time/timer.c:1874
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 hlock_class kernel/locking/lockdep.c:179 [inline]
 mark_lock+0x12b/0x1510 kernel/locking/lockdep.c:3912
 find_held_lock+0x2d/0x110 kernel/locking/lockdep.c:4458
 usleep_range+0x160/0x160 kernel/time/timer.c:2093
 print_usage_bug+0x200/0x200 kernel/locking/lockdep.c:101
 flush_workqueue+0x3f7/0x14f0 kernel/workqueue.c:2829
 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x16f/0x280 kernel/sched/completion.c:138
 atomic64_cmpxchg include/asm-generic/atomic-instrumented.h:1463 [inline]
 atomic_long_cmpxchg_release include/asm-generic/atomic-long.h:424 [inline]
 __mutex_unlock_slowpath+0xe2/0x660 kernel/locking/mutex.c:1249
 wait_for_completion_interruptible+0x2f0/0x2f0 kernel/sched/completion.c:89
 flush_workqueue_prep_pwqs+0x298/0x4e0 kernel/workqueue.c:2757
 to_kthread kernel/kthread.c:76 [inline]
 kthread_data+0x4f/0xc0 kernel/kthread.c:165
 check_flush_dependency+0x2e2/0x400 kernel/workqueue.c:2606
 flush_workqueue+0x403/0x14f0 kernel/workqueue.c:2831
 __kasan_slab_free+0x12e/0x160 mm/kasan/common.c:458
 pwq_unbound_release_workfn+0x2d0/0x2d0 include/linux/list.h:135
 ath6kl_bmi_done+0x180/0x180 drivers/net/wireless/ath/ath6kl/hif-ops.h:122
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:856 [inline]
 ath6kl_usb_power_off+0x33/0x40 drivers/net/wireless/ath/ath6kl/usb.c:1055
 hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:856 [inline]
 ath6kl_usb_power_off+0x33/0x40 drivers/net/wireless/ath/ath6kl/usb.c:1055
 ath6kl_hif_power_off drivers/net/wireless/ath/ath6kl/hif-ops.h:143 [inline]
 ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:255 [inline]
 ath6kl_core_init+0x236/0x10d0 drivers/net/wireless/ath/ath6kl/core.c:66
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 lockdep_init_map_waits+0x26a/0x7c0 kernel/locking/lockdep.c:4138
 ath6kl_core_destroy+0x20/0x20 drivers/net/wireless/ath/ath6kl/core.c:359
 memcpy+0x39/0x60 mm/kasan/common.c:107
 ath6kl_core_create+0x83d/0xa00 drivers/net/wireless/ath/ath6kl/core.c:324
 ath6kl_usb_probe+0xc8f/0x1190 drivers/net/wireless/ath/ath6kl/usb.c:1155
 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374
 usb_probe_device+0x230/0x230 drivers/usb/core/driver.c:274
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 driver_allows_async_probing+0x160/0x160 drivers/base/dd.c:737
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 bus_rescan_devices+0x20/0x20 drivers/base/bus.c:711
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0x39/0x40 kernel/locking/spinlock.c:191
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline]
 lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 device_bind_driver+0xd0/0xd0 drivers/base/dd.c:443
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 wait_for_completion+0x280/0x280
 device_link_remove+0x110/0x110 drivers/base/core.c:628
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0x39/0x40 kernel/locking/spinlock.c:191
 usb_set_configuration+0xed4/0x1850 drivers/usb/core/message.c:2032
 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241
 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272
 usb_suspend+0x600/0x600 include/linux/pm_wakeup.h:84
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 driver_allows_async_probing+0x160/0x160 drivers/base/dd.c:737
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 bus_rescan_devices+0x20/0x20 drivers/base/bus.c:711
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0x39/0x40 kernel/locking/spinlock.c:191
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline]
 lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 device_bind_driver+0xd0/0xd0 drivers/base/dd.c:443
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 device_link_remove+0x110/0x110 drivers/base/core.c:628
 usb_new_device.cold+0x552/0xf6e drivers/usb/core/hub.c:2553
 hub_disconnect+0x4a0/0x4a0 drivers/usb/core/hub.c:1735
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 hub_port_connect drivers/usb/core/hub.c:5207 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5347 [inline]
 port_event drivers/usb/core/hub.c:5493 [inline]
 hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5575
 hub_port_debounce+0x350/0x350 drivers/usb/core/hub.c:4440
 usermodehelper_read_unlock+0x10/0x20 kernel/umh.c:292
 lock_is_held include/linux/lockdep.h:406 [inline]
 rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:121
 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 lock_release+0x720/0x720 kernel/locking/lockdep.c:4689
 pwq_dec_nr_in_flight+0x310/0x310 kernel/workqueue.c:1198
 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1329
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 process_one_work+0x1630/0x1630 kernel/workqueue.c:1029
 kthread+0x326/0x430 kernel/kthread.c:268
 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
INFO: task kworker/1:7:3364 blocked for more than 143 seconds.
      Not tainted 5.7.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:7     D23616  3364      2 0x80004000
Workqueue: events request_firmware_work_func
Call Trace:
 context_switch kernel/sched/core.c:3367 [inline]
 __schedule+0x892/0x1d80 kernel/sched/core.c:4083
 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599
 __sched_text_start+0x8/0x8
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline]
 lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702
 schedule+0xcd/0x2b0 kernel/sched/core.c:4158
 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4217
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x87c/0x1360 kernel/locking/mutex.c:1103
 device_lock include/linux/device.h:768 [inline]
 ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline]
 ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
 mutex_trylock+0x2c0/0x2c0 kernel/locking/mutex.c:126
 ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1074 [inline]
 ath9k_hif_usb_firmware_cb+0x36d/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
 print_usage_bug+0x200/0x200 kernel/locking/lockdep.c:101
 atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:694 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:78 [inline]
 do_raw_spin_lock+0x129/0x290 kernel/locking/spinlock_debug.c:113
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628
 device_lock include/linux/device.h:768 [inline]
 ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline]
 ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
 device_lock include/linux/device.h:768 [inline]
 ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline]
 ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
 ath9k_hif_usb_resume+0x320/0x320 drivers/net/wireless/ath/ath9k/hif_usb.c:1400
 request_firmware_work_func+0x126/0x242 drivers/base/firmware_loader/main.c:1005
 request_firmware_into_buf+0x90/0x90 drivers/base/firmware_loader/main.c:968
 lock_is_held include/linux/lockdep.h:406 [inline]
 rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:121
 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 lock_release+0x720/0x720 kernel/locking/lockdep.c:4689
 pwq_dec_nr_in_flight+0x310/0x310 kernel/workqueue.c:1198
 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1329
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 process_one_work+0x1630/0x1630 kernel/workqueue.c:1029
 kthread+0x326/0x430 kernel/kthread.c:268
 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351

Showing all locks held in the system:
6 locks held by kworker/0:1/12:
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881da21fdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4e11218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4e11218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5521
 #3: ffff8881d4e14588 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3011 [inline]
 #3: ffff8881d4e14588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5138 [inline]
 #3: ffff8881d4e14588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5347 [inline]
 #3: ffff8881d4e14588 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5493 [inline]
 #3: ffff8881d4e14588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2050/0x43c0 drivers/usb/core/hub.c:5575
 #4: ffff8881d53e5468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b6/0x2e20 drivers/usb/core/hub.c:4562
 #5: ffffffff8769aa70 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x186/0x1790 drivers/usb/core/hub.c:2873
5 locks held by kworker/1:0/17:
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881da25fdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4eb9218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4eb9218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5521
 #3: ffff8881aca29218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #3: ffff8881aca29218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7b/0x390 drivers/base/dd.c:847
 #4: ffff8881d1c991a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #4: ffff8881d1c991a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7b/0x390 drivers/base/dd.c:847
1 lock held by khungtaskd/23:
 #0: ffffffff87111260 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x264 kernel/locking/lockdep.c:5754
1 lock held by in:imklog/276:
 #0: ffff8881c9aa4af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:826
2 locks held by agetty/281:
 #0: ffff8881d6e18098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
 #1: ffffc900005f02e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x220/0x1b30 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.5/377:
 #0: ffff8881db234918 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1262 [inline]
 #0: ffff8881db234918 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x1d80 kernel/sched/core.c:4029
6 locks held by kworker/0:5/3122:
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881d0cd7dc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4ef9218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4ef9218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5521
 #3: ffff8881d4efc588 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3011 [inline]
 #3: ffff8881d4efc588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5138 [inline]
 #3: ffff8881d4efc588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5347 [inline]
 #3: ffff8881d4efc588 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5493 [inline]
 #3: ffff8881d4efc588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2050/0x43c0 drivers/usb/core/hub.c:5575
 #4: ffff8881d4e72468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b6/0x2e20 drivers/usb/core/hub.c:4562
 #5: ffffffff8769aa70 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x186/0x1790 drivers/usb/core/hub.c:2873
3 locks held by kworker/0:6/3127:
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881d8d5d538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881d0a4fdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4ed1218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4ed1218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5521
3 locks held by kworker/0:7/3133:
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881d310fdc0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4ed1218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4ed1218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline]
 #2: ffff8881d4ed1218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
3 locks held by kworker/1:7/3364:
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239
 #1: ffff8881c646fdc0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243
 #2: ffff8881d4eb9218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline]
 #2: ffff8881d4eb9218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline]
 #2: ffff8881d4eb9218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210
3 locks held by kworker/1:8/4676:

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

NMI backtrace for cpu 1
CPU: 1 PID: 23 Comm: khungtaskd Not tainted 5.7.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xef/0x16e lib/dump_stack.c:118
 irq_force_complete_move.cold+0x13/0x47 arch/x86/kernel/apic/vector.c:1023
 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
 lapic_can_unplug_cpu.cold+0x3b/0x3b
 nmi_trigger_cpumask_backtrace+0x1db/0x207 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0xa99/0xfd0 kernel/hung_task.c:289
 reset_hung_task_detector+0x30/0x30 kernel/hung_task.c:243
 kthread+0x326/0x430 kernel/kthread.c:268
 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: kworker/u4:1 Not tainted 5.7.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound async_run_entry_fn
RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline]
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:866 [inline]
RIP: 0010:register_lock_class+0x14e/0x17e0 kernel/locking/lockdep.c:1220
Code: c9 0f 85 f7 05 00 00 8b 05 df 12 47 08 85 c0 0f 84 92 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 c1 48 c1 e9 03 80 3c 01 00 <0f> 85 6a 10 00 00 4e 8b 04 fd 60 85 35 89 49 bf 00 00 00 00 00 fc
RSP: 0018:ffff8881db2099b0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff896e1d60 RCX: 1ffffffff126be2e
RDX: ffffffff896e4220 RSI: 0000000000000000 RDI: ffff8881db209d68
RBP: ffff8881db209d68 R08: ffffffff8935f170 R09: 0000000000000001
R10: ffffffff87e88e87 R11: fffffbfff0fd11d0 R12: 1ffff1103b64133e
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000d82
FS:  0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9c507f9000 CR3: 00000001d24d3000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 hlock_class kernel/locking/lockdep.c:179 [inline]
 mark_lock+0x12b/0x1510 kernel/locking/lockdep.c:3912
 print_usage_bug+0x200/0x200 kernel/locking/lockdep.c:101
 is_dynamic_key+0x1b0/0x1b0 include/linux/compiler.h:199
 __lock_acquire+0x104/0x6650 kernel/locking/lockdep.c:4234
 print_usage_bug+0x200/0x200 kernel/locking/lockdep.c:101
 mark_held_locks+0xe0/0xe0 kernel/locking/lockdep.c:3620
 mark_held_locks+0xe0/0xe0 kernel/locking/lockdep.c:3620
 mark_held_locks+0xe0/0xe0 kernel/locking/lockdep.c:3620
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 hlock_class kernel/locking/lockdep.c:179 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3146 [inline]
 validate_chain kernel/locking/lockdep.c:3202 [inline]
 __lock_acquire+0x2248/0x6650 kernel/locking/lockdep.c:4355
 lock_acquire+0x18b/0x7c0 kernel/locking/lockdep.c:4934
 lockdep_copy_map include/linux/lockdep.h:193 [inline]
 call_timer_fn+0xdb/0x700 kernel/time/timer.c:1395
 lock_release+0x720/0x720 kernel/locking/lockdep.c:4689
 trace_hardirqs_off+0x50/0x200 kernel/trace/trace_preemptirq.c:45
 call_timer_fn+0x12e/0x700 kernel/time/timer.c:1402
 lockdep_copy_map include/linux/lockdep.h:193 [inline]
 call_timer_fn+0xdb/0x700 kernel/time/timer.c:1395
 __next_timer_interrupt+0x190/0x190 kernel/time/timer.c:1512
 timer_fixup_init+0x60/0x60 kernel/time/timer.c:632
 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628
 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 __next_timer_interrupt+0x190/0x190 kernel/time/timer.c:1512
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers kernel/time/timer.c:1774 [inline]
 __run_timers kernel/time/timer.c:1741 [inline]
 run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1787
 add_timer+0x7a0/0x7a0 kernel/time/timer.c:893
 lock_is_held include/linux/lockdep.h:406 [inline]
 rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:121
 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628
 __do_softirq+0x21e/0x9aa kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x178/0x1a0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:546 [inline]
 smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1140
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline]
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1779 [inline]
RIP: 0010:vprintk_emit+0x3d0/0x3e0 kernel/printk/printk.c:2020
Code: 00 83 fb ff 75 d6 e9 d8 fc ff ff e8 7a 2f 16 00 e8 55 8b 1b 00 41 56 9d e9 aa fd ff ff e8 68 2f 16 00 e8 43 8b 1b 00 41 56 9d <e9> 2a ff ff ff 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 f5 53 48
RSP: 0018:ffff8881d8ce7448 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffffffff126f4af
RDX: 0000000000000000 RSI: ffff8881d8cd88d0 RDI: ffff8881d8cd887c
RBP: ffff8881d8ce7490 R08: 0000000000000001 R09: fffffbfff126c8c4
R10: ffffffff8936461f R11: fffffbfff126c8c3 R12: 0000000000000029
R13: ffff8881d8c98000 R14: 0000000000000293 R15: 0000000000000000
 dev_vprintk_emit+0x4fc/0x541 drivers/base/core.c:3774
 dev_attr_show.cold+0x3a/0x3a drivers/base/core.c:1244
 widen_string+0x2a0/0x2a0 lib/vsprintf.c:593
 stack_trace_consume_entry+0x160/0x160 kernel/stacktrace.c:93
 hex_string+0xf8/0x4c0 lib/vsprintf.c:1115
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:3785
 dev_vprintk_emit+0x541/0x541 drivers/base/core.c:3775
 format_decode+0x230/0xad0 lib/vsprintf.c:2326
 pointer+0x10b/0x680 lib/vsprintf.c:2257
 enable_ptr_key_workfn+0x30/0x30 lib/vsprintf.c:724
 __dev_printk+0x1db/0x203 drivers/base/core.c:3797
 dev_printk+0xd0/0x104 drivers/base/core.c:3814
 __dev_printk+0x203/0x203 drivers/base/core.c:3801
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 sdev_prefix_printk+0x18a/0x200 drivers/scsi/scsi_logging.c:75
 scsi_trace_parse_cdb+0xe50/0xe50
 sd_remove+0x200/0x200 drivers/scsi/sd.c:3436
 sd_read_write_protect_flag drivers/scsi/sd.c:2627 [inline]
 sd_revalidate_disk+0x3dfb/0x72b0 drivers/scsi/sd.c:3149
 read_capacity_16.part.0+0xfb0/0xfb0 drivers/scsi/sd.c:2337
 device_link_remove+0x110/0x110 drivers/base/core.c:628
 lockdep_init_map_wait include/linux/lockdep.h:330 [inline]
 __raw_spin_lock_init+0x34/0x100 kernel/locking/spinlock_debug.c:24
 sd_probe+0x8cf/0xef5 drivers/scsi/sd.c:3375
 sd_revalidate_disk+0x72b0/0x72b0 drivers/scsi/sd.c:3723
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 driver_allows_async_probing+0x160/0x160 drivers/base/dd.c:737
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 bus_rescan_devices+0x20/0x20 drivers/base/bus.c:711
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0x39/0x40 kernel/locking/spinlock.c:191
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline]
 lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702
 __device_attach_async_helper+0x1d9/0x2a0 drivers/base/dd.c:830
 driver_sysfs_remove+0x110/0x110 drivers/base/dd.c:416
 async_run_entry_fn+0xd3/0x6f0 kernel/async.c:123
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 lock_release+0x720/0x720 kernel/locking/lockdep.c:4689
 pwq_dec_nr_in_flight+0x310/0x310 kernel/workqueue.c:1198
 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1329
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 process_one_work+0x1630/0x1630 kernel/workqueue.c:1029
 kthread+0x326/0x430 kernel/kthread.c:268
 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351