INFO: task kworker/1:2:2988 blocked for more than 143 seconds. Not tainted 5.11.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:26416 pid: 2988 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/0:3:3193 blocked for more than 144 seconds. Not tainted 5.11.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:26296 pid: 3193 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/0:0:8411 blocked for more than 145 seconds. Not tainted 5.11.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:27472 pid: 8411 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/0:4:8421 blocked for more than 147 seconds. Not tainted 5.11.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:26912 pid: 8421 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 usb_get_descriptor+0xa1/0x3c0 drivers/usb/core/message.c:790 usb_get_device_descriptor+0x8a/0xe0 drivers/usb/core/message.c:1065 hub_port_init+0x10a6/0x2ce0 drivers/usb/core/hub.c:4799 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Showing all locks held in the system: 2 locks held by kworker/u4:0/8: 1 lock held by khungtaskd/1645: #0: ffffffff8c711680 ( rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire+0x0/0x30 arch/x86/pci/mmconfig_64.c:151 5 locks held by kworker/1:2/2988: #0: ffff888015e04d38 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc900012afd78 ( (work_completion)(&hub->events) ){+.+.}-{0:0} , at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff8881443a5218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff8881443b8578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] #3: ffff8881443b8578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff888144356c68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 5 locks held by kworker/0:3/3193: #0: ffff888015e04d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc90001b97d78 ( (work_completion)(&hub->events) ){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff88814430d218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] #2: ffff88814430d218 (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff88801dcb0578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] #3: ffff88801dcb0578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff888144280e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 1 lock held by in:imklog/8104: #0: ffff88801c8b8370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:947 3 locks held by kworker/1:0/8385: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9d1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffffffff9022a7a0 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:975 [inline] #2: ffffffff9022a7a0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0xa9/0x650 lib/debugobjects.c:1018 1 lock held by sshd/8389: #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 5 locks held by kworker/0:0/8411: #0: ffff888015e04d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc90001a57d78 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff88801de46218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] ffff88801de46218 (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff88801dea9578 ( &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+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff88801d58be68 (hcd->address0_mutex){+.+.}-{3:3} , at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 5 locks held by kworker/0:4/8421: #0: ffff888015e04d38 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0} , at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc90001ad7d78 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff8881442c8218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff8881442cc578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] #3: ffff8881442cc578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff88801478d268 ( hcd->address0_mutex ){+.+.}-{3:3} , at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 1 lock held by systemd-journal/8717: 1 lock held by syz-executor599/12530: #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 3 locks held by syz-executor599/12532: #0: ffff888023d18460 (sb_writers#6 ){.+.+}-{0:0} , at: rq_lock kernel/sched/sched.h:1320 [inline] , at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: