INFO: task kworker/0:5:17576 blocked for more than 143 seconds.
      Not tainted 5.12.0-rc1-next-20210302-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D
 stack:27968 pid:17576 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 context_switch kernel/sched/core.c:4322 [inline]
 __schedule+0x90c/0x21a0 kernel/sched/core.c:5073
 schedule+0xcf/0x270 kernel/sched/core.c:5152
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5211
 __mutex_lock_common kernel/locking/mutex.c:1023 [inline]
 __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
 hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
 hub_port_connect drivers/usb/core/hub.c:5155 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x2190/0x4320 drivers/usb/core/hub.c:5591
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Showing all locks held in the system:
5 locks held by kworker/1:0/19:
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 #0: ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc90000d97da8
 (
(work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff888144994218
 (
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:740 [inline]
&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff888144997578
 (
&port_dev->status_lock
){+.+.}-{3:3}
, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
, at: port_event drivers/usb/core/hub.c:5509 [inline]
, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881448ef368
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
1 lock held by khungtaskd/1664:
 #0: 
ffffffff8bf741e0
 (
rcu_read_lock
){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6327
5 locks held by kworker/1:2/3689:
2 locks held by kworker/u4:5/4435:
5 locks held by kworker/0:3/4620:
 #0: 
ffff888015562938
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
, at: set_work_data kernel/workqueue.c:616 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc9000969fda8
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff888144af1218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff8880b9c35198
 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1321 [inline]
 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x217/0x21a0 kernel/sched/core.c:4990
 #4: ffff8880b9c1f948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x305/0x440 kernel/sched/psi.c:833
1 lock held by in:imklog/8120:
5 locks held by kworker/1:1/8424:
 #0: 
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc9000173fda8
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff888144950218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff888144953578
 (
&port_dev->status_lock
){+.+.}-{3:3}
, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
, at: port_event drivers/usb/core/hub.c:5509 [inline]
, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881448c8968
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/0:0/8428:
 #0: 
ffff888015562938
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
, at: set_work_data kernel/workqueue.c:616 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc9000176fda8
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff888144a30218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff888144a33578
 (
&port_dev->status_lock
){+.+.}-{3:3}
, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
, at: port_event drivers/usb/core/hub.c:5509 [inline]
, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881449a2d68
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/1:4/8440:
 #0: 
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc900017efda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: ffff8881448b4218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:740 [inline]
 #2: ffff8881448b4218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff8881448b7578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
ffff8881448b7578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
ffff8881448b7578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
ffff8881448b7578 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5509 [inline]
ffff8881448b7578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff88801bf0ee68
 (
hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/1:6/8451:
 #0: 
ffff888015562938
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc90001b7fda8
 (
(work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff88814496e218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff888144989578
 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5509 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881448ef368
 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/1:7/8453:
 #0: 
ffff888015562938
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
, at: set_work_data kernel/workqueue.c:616 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc900017cfda8
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff88801c803218
 (
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:740 [inline]
&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff888144ab6578
 (
&port_dev->status_lock
){+.+.}-{3:3}
, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
, at: port_event drivers/usb/core/hub.c:5509 [inline]
, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881447e7068
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/1:9/8461:
 #0: 
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
ffff888015562938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: ffffc90001bafda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff8881449fa218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff8881449fd578
 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5509 [inline]
 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881449a2d68
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/1:10/8463:
 #0: 
ffff888015562938
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246
 #1: 
ffffc90001bcfda8
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250
 #2: 
ffff888144ab4218
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:740 [inline]
, at: hub_event+0x1c1/0x4320 drivers/usb/core/hub.c:5537
 #3: 
ffff88801c7f0578
 (
&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5154 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5509 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4320 drivers/usb/core/hub.c:5591
 #4: 
ffff8881449c7f68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2dd0 drivers/usb/core/hub.c:4582
5 locks held by kworker/0:5/17576:
 #0: 
ffff888015562938
 (