INFO: task kworker/0:0:5 blocked for more than 143 seconds. Not tainted 5.12.0-rc5-next-20210401-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:26600 pid: 5 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4329 [inline] __schedule+0x911/0x2160 kernel/sched/core.c:5079 schedule+0xcf/0x270 kernel/sched/core.c:5158 usb_kill_urb.part.0+0x19c/0x220 drivers/usb/core/urb.c:711 usb_kill_urb+0x81/0xa0 drivers/usb/core/urb.c:706 usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 hub_port_init+0x82e/0x2db0 drivers/usb/core/hub.c:4757 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x2190/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x82b/0x1120 kernel/workqueue.c:2423 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 INFO: task kworker/1:0:20 blocked for more than 144 seconds. Not tainted 5.12.0-rc5-next-20210401-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:27008 pid: 20 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4329 [inline] __schedule+0x911/0x2160 kernel/sched/core.c:5079 schedule+0xcf/0x270 kernel/sched/core.c:5158 usb_kill_urb.part.0+0x19c/0x220 drivers/usb/core/urb.c:711 usb_kill_urb+0x81/0xa0 drivers/usb/core/urb.c:706 usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 hub_port_init+0x82e/0x2db0 drivers/usb/core/hub.c:4757 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x2190/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x82b/0x1120 kernel/workqueue.c:2423 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 INFO: task kworker/0:2:8442 blocked for more than 145 seconds. Not tainted 5.12.0-rc5-next-20210401-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:27144 pid: 8442 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4329 [inline] __schedule+0x911/0x2160 kernel/sched/core.c:5079 schedule+0xcf/0x270 kernel/sched/core.c:5158 usb_kill_urb.part.0+0x19c/0x220 drivers/usb/core/urb.c:711 usb_kill_urb+0x81/0xa0 drivers/usb/core/urb.c:706 usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:790 usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:1065 hub_port_init+0x9e3/0x2db0 drivers/usb/core/hub.c:4852 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x2190/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 INFO: task kworker/0:3:8472 blocked for more than 147 seconds. Not tainted 5.12.0-rc5-next-20210401-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:27336 pid: 8472 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4329 [inline] __schedule+0x911/0x2160 kernel/sched/core.c:5079 schedule+0xcf/0x270 kernel/sched/core.c:5158 usb_kill_urb.part.0+0x19c/0x220 drivers/usb/core/urb.c:711 usb_kill_urb+0x81/0xa0 drivers/usb/core/urb.c:706 usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:790 usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:1065 hub_port_init+0x9e3/0x2db0 drivers/usb/core/hub.c:4852 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x2190/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0x82b/0x1120 kernel/workqueue.c:2423 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Showing all locks held in the system: 5 locks held by kworker/0:0/5: #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000ca7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffff88801d6e7220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline] #2: ffff88801d6e7220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590 #3: ffff88801d722578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3079 [inline] #3: ffff88801d722578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5207 [inline] #3: ffff88801d722578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] #3: ffff88801d722578 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5562 [inline] #3: ffff88801d722578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4330 drivers/usb/core/hub.c:5644 #4: ffff88801d543b68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2db0 drivers/usb/core/hub.c:4631 5 locks held by kworker/1:0/20: #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000da7da8 ( (work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffff88801d7df220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline] #2: ffff88801d7df220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590 #3: ffff88801d822578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3079 [inline] #3: ffff88801d822578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5207 [inline] #3: ffff88801d822578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] #3: ffff88801d822578 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5562 [inline] #3: ffff88801d822578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4330 drivers/usb/core/hub.c:5644 #4: ffff88801d435768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2db0 drivers/usb/core/hub.c:4631 2 locks held by kworker/u4:6/266: 1 lock held by khungtaskd/1638: #0: ffffffff8bf75060 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6333 1 lock held by in:imklog/8153: #0: ffff88802fb299f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:967 5 locks held by kworker/0:2/8442: #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000ce7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffff88801d62e220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline] #2: ffff88801d62e220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590 #3: ffff88801d652578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3079 [inline] (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5207 [inline] (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5562 [inline] (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4330 drivers/usb/core/hub.c:5644 #4: ffff88801d4e6168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2db0 drivers/usb/core/hub.c:4631 1 lock held by syz-executor969/8452: #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: filename_create+0x104/0x490 fs/namei.c:3585 5 locks held by kworker/0:3/8472: #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff8880159bad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc900017bfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffff888143f93220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline] #2: ffff888143f93220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590 #3: ffff888143f96578 ( &port_dev->status_lock ){+.+.}-{3:3} , at: usb_lock_port drivers/usb/core/hub.c:3079 [inline] , at: hub_port_connect drivers/usb/core/hub.c:5207 [inline] , at: hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] , at: port_event drivers/usb/core/hub.c:5562 [inline] , at: hub_event+0x2178/0x4330 drivers/usb/core/hub.c:5644 #4: ffff888143ee9f68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2db0 drivers/usb/core/hub.c:4631 3 locks held by syz-executor969/10627: #0: ffff8880b9d352d8 ( &rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] &rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9d1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff888026498d38 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 3 locks held by syz-executor969/10694: #0: ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9d1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff8880264993b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 3 locks held by syz-executor969/10715: #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9c1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff88802649e838 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 1 lock held by syz-executor969/10771: #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 3 locks held by syz-executor969/10795: #0: ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] #0: ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9d1f988 ( &per_cpu_ptr(group->pcpu, cpu)->seq ){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff88802649a738 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 6 locks held by syz-executor969/10874: #0: ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] #0: ffff8880b9d352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9d1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffffffff8bf75060 ( rcu_read_lock ){....}-{1:2} , at: trace_sched_stat_runtime include/trace/events/sched.h:519 [inline] , at: update_curr+0x2e4/0x840 kernel/sched/fair.c:854 #3: ffff8880b9d352d8 ( &rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] &rq->lock){-.-.}-{2:2}, at: ttwu_queue kernel/sched/core.c:3193 [inline] &rq->lock){-.-.}-{2:2}, at: try_to_wake_up+0x5fd/0x1580 kernel/sched/core.c:3473 #4: ffff8880b9d35458 (&cfs_rq->removed.lock){-.-.}-{2:2}, at: update_cfs_rq_load_avg kernel/sched/fair.c:3653 [inline] #4: ffff8880b9d35458 (&cfs_rq->removed.lock){-.-.}-{2:2}, at: update_load_avg+0x9ef/0x18b0 kernel/sched/fair.c:3790 #5: ffffffff8be83c78 (console_owner_lock){....}-{2:2}, at: console_lock_spinning_disable_and_check kernel/printk/printk.c:1812 [inline] #5: ffffffff8be83c78 (console_owner_lock){....}-{2:2}, at: console_unlock+0x650/0xc40 kernel/printk/printk.c:2646 3 locks held by syz-executor969/10994: #0: ffff888025666460 (sb_writers#6){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 #1: ffff8880b9d1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff88802649adb8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 3 locks held by syz-executor969/11021: 3 locks held by syz-executor969/11029: 3 locks held by syz-executor969/11044: 3 locks held by syz-executor969/11046: 3 locks held by syz-executor969/11050: #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9c1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871 #2: ffff88802649adb8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137 3 locks held by syz-executor969/11112: #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1329 [inline] #0: ffff8880b9c352d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x2160 kernel/sched/core.c:4996 #1: ffff8880b9c1f988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x24c/0x670 kernel/sched/psi.c:871