INFO: task kworker/0:5:4061 blocked for more than 150 seconds. Not tainted 5.15.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack: 0 pid: 4061 ppid: 2 flags:0x00000008 Workqueue: usb_hub_wq hub_event Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 usb_kill_urb+0x1c0/0x358 drivers/usb/core/urb.c:726 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+0xdc4/0x1e80 drivers/usb/core/hub.c:4927 hub_port_connect drivers/usb/core/hub.c:5287 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5648 [inline] hub_event+0x1f9c/0x48c4 drivers/usb/core/hub.c:5730 process_one_work+0x790/0x11b8 kernel/workqueue.c:2307 worker_thread+0x910/0x1034 kernel/workqueue.c:2454 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 INFO: task kworker/0:11:6144 blocked for more than 150 seconds. Not tainted 5.15.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:11 state:D stack: 0 pid: 6144 ppid: 2 flags:0x00000008 Workqueue: usb_hub_wq hub_event Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 usb_kill_urb+0x1c0/0x358 drivers/usb/core/urb.c:726 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+0xdc4/0x1e80 drivers/usb/core/hub.c:4927 hub_port_connect drivers/usb/core/hub.c:5287 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5648 [inline] hub_event+0x1f9c/0x48c4 drivers/usb/core/hub.c:5730 process_one_work+0x790/0x11b8 kernel/workqueue.c:2307 worker_thread+0x910/0x1034 kernel/workqueue.c:2454 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014aa19e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268 2 locks held by getty/3726: #0: ffff0000d303a098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001a27e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147 1 lock held by syz-executor.4/4012: #0: ffff00010c1840e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 5 locks held by kworker/0:5/4061: #0: ffff0000c2800d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2280 #1: ffff80001d607c00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2282 #2: ffff0000cf61d220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff0000cf61d220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c8/0x48c4 drivers/usb/core/hub.c:5676 #3: ffff0000cf6305d8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3091 [inline] #3: ffff0000cf6305d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5254 [inline] #3: ffff0000cf6305d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] #3: ffff0000cf6305d8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline] #3: ffff0000cf6305d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1a34/0x48c4 drivers/usb/core/hub.c:5730 #4: ffff0000cf411868 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5255 [inline] #4: ffff0000cf411868 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] #4: ffff0000cf411868 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline] #4: ffff0000cf411868 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1a5c/0x48c4 drivers/usb/core/hub.c:5730 5 locks held by kworker/0:11/6144: #0: ffff0000c2800d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2280 #1: ffff80001f677c00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2282 #2: ffff0000cf5b1220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] ffff0000cf5b1220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c8/0x48c4 drivers/usb/core/hub.c:5676 #3: ffff0000cf5b45d8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3091 [inline] #3: ffff0000cf5b45d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5254 [inline] #3: ffff0000cf5b45d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] #3: ffff0000cf5b45d8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline] #3: ffff0000cf5b45d8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1a34/0x48c4 drivers/usb/core/hub.c:5730 #4: ffff0000cf407c68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5255 [inline] #4: ffff0000cf407c68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] #4: ffff0000cf407c68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline] #4: ffff0000cf407c68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1a5c/0x48c4 drivers/usb/core/hub.c:5730 2 locks held by kworker/u4:17/6766: =============================================