INFO: task kworker/1:3:2763 blocked for more than 143 seconds. Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack: 0 pid: 2763 ppid: 2 flags:0x00000008 Workqueue: usb_hub_wq hub_event Call trace: __switch_to+0x180/0x28c arch/arm64/kernel/process.c:557 context_switch kernel/sched/core.c:5182 [inline] __schedule+0x414/0x570 kernel/sched/core.c:6494 schedule+0x64/0xa4 kernel/sched/core.c:6570 usb_kill_urb+0xe0/0x1a8 drivers/usb/core/urb.c:726 usb_start_wait_urb+0xf8/0x1ec drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0xd8/0x17c drivers/usb/core/message.c:153 hub_port_init+0x534/0x1064 drivers/usb/core/hub.c:4825 hub_port_connect+0x528/0xdf0 drivers/usb/core/hub.c:5282 hub_port_connect_change+0x3d8/0x67c drivers/usb/core/hub.c:5497 port_event+0x780/0x910 drivers/usb/core/hub.c:5653 hub_event+0x2f0/0x624 drivers/usb/core/hub.c:5735 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/10: #0: ffff80000d4a3568 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/11: #0: ffff80000d4a3bb8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/26: #0: ffff80000d4a3440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:279 2 locks held by getty/2719: #0: ffff0000c5f01098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f67e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x88c drivers/tty/n_tty.c:2177 5 locks held by kworker/1:3/2763: #0: ffff0000c0c14138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x270/0x504 kernel/workqueue.c:2262 #1: ffff8000127fbd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x29c/0x504 kernel/workqueue.c:2264 #2: ffff0000c6612990 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #2: ffff0000c6612990 (&dev->mutex){....}-{3:3}, at: hub_event+0x8c/0x624 drivers/usb/core/hub.c:5681 #3: ffff0000c6614d08 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3103 [inline] #3: ffff0000c6614d08 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0x33c/0xdf0 drivers/usb/core/hub.c:5249 #4: ffff0000c459da68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect+0x348/0xdf0 drivers/usb/core/hub.c:5250 1 lock held by syz-fuzzer/3029: =============================================