INFO: task kworker/0:3:4318 blocked for more than 143 seconds. Not tainted 6.1.22-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:4318 ppid:2 flags:0x00000008 Workqueue: usb_hub_wq hub_event Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6554 schedule+0xc4/0x170 kernel/sched/core.c:6630 usb_kill_urb+0x1b4/0x32c drivers/usb/core/urb.c:728 usb_start_wait_urb+0x16c/0x414 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x228/0x3f8 drivers/usb/core/message.c:153 usb_get_descriptor+0xb4/0x3bc drivers/usb/core/message.c:793 usb_get_device_descriptor+0x9c/0xfc drivers/usb/core/message.c:1071 hub_port_init+0xdc4/0x1eb8 drivers/usb/core/hub.c:4922 hub_port_connect drivers/usb/core/hub.c:5284 [inline] hub_port_connect_change drivers/usb/core/hub.c:5499 [inline] port_event drivers/usb/core/hub.c:5655 [inline] hub_event+0x20b8/0x44a0 drivers/usb/core/hub.c:5737 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2289 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436 kthread+0x24c/0x2d4 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015754a30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffff800015755230 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffff800015754860 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:305 2 locks held by getty/3988: #0: ffff0000d3da9098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001ca002f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177 5 locks held by kworker/0:3/4318: #0: ffff0000c26a0d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2262 #1: ffff80001da77c20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2264 #2: ffff0000d0169190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:836 [inline] #2: ffff0000d0169190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x44a0 drivers/usb/core/hub.c:5683 #3: ffff0000d016c510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3105 [inline] #3: ffff0000d016c510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5251 [inline] #3: ffff0000d016c510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5499 [inline] #3: ffff0000d016c510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5655 [inline] #3: ffff0000d016c510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1b78/0x44a0 drivers/usb/core/hub.c:5737 #4: ffff0000cff93668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5252 [inline] #4: ffff0000cff93668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5499 [inline] #4: ffff0000cff93668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5655 [inline] #4: ffff0000cff93668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1ba0/0x44a0 drivers/usb/core/hub.c:5737 2 locks held by kworker/u4:8/9700: 1 lock held by syz-executor.3/318: #0: ffff0000cc685b60 (&lo->lo_mutex){+.+.}-{3:3}, at: loop_set_status+0x40/0x804 drivers/block/loop.c:1269 3 locks held by syz-executor.5/342: =============================================