INFO: task kworker/0:1:14 blocked for more than 143 seconds. Not tainted 6.1.59-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:14 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 get_bMaxPacketSize0 drivers/usb/core/hub.c:4716 [inline] hub_port_init+0x960/0x21b4 drivers/usb/core/hub.c:4913 hub_port_connect drivers/usb/core/hub.c:5363 [inline] hub_port_connect_change drivers/usb/core/hub.c:5574 [inline] port_event drivers/usb/core/hub.c:5730 [inline] hub_event+0x20c0/0x4360 drivers/usb/core/hub.c:5812 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015a84d70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffff800015a85570 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 5 locks held by kworker/0:1/14: #0: ffff0000c4668d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265 #1: ffff800019ed7c20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267 #2: ffff0000d1c51190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:836 [inline] #2: ffff0000d1c51190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1ac/0x4360 drivers/usb/core/hub.c:5758 #3: ffff0000d1c54510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3122 [inline] #3: ffff0000d1c54510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5330 [inline] #3: ffff0000d1c54510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5574 [inline] #3: ffff0000d1c54510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5730 [inline] #3: ffff0000d1c54510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1b88/0x4360 drivers/usb/core/hub.c:5812 #4: ffff0000d1b1da68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5331 [inline] #4: ffff0000d1b1da68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5574 [inline] #4: ffff0000d1b1da68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5730 [inline] #4: ffff0000d1b1da68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1bb0/0x4360 drivers/usb/core/hub.c:5812 1 lock held by khungtaskd/28: #0: ffff800015a84ba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:305 2 locks held by getty/3980: #0: ffff0000d5c77098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001dbab2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2188 2 locks held by syz-executor.5/4259: #0: ffff0000d79ca460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff0000d79ca650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1832 [inline] #1: ffff0000d79ca650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1954 [inline] #1: ffff0000d79ca650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x408/0x12cc fs/ext4/inode.c:240 3 locks held by syz-executor.4/4264: #0: ffff0000d79ca460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff0000def8ca38 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline] #1: ffff0000def8ca38 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x200/0x464 fs/namei.c:3807 #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1644 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2c4/0x1c98 kernel/sched/core.c:6471 3 locks held by syz-executor.1/19997: #0: ffff0000d79ca460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff00012a772c20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline] #1: ffff00012a772c20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x200/0x464 fs/namei.c:3807 #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1644 [inline] #2: ffff0001b4562598 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2c4/0x1c98 kernel/sched/core.c:6471 3 locks held by kworker/u4:19/21554: 2 locks held by syz-executor.3/10581: =============================================