INFO: task kworker/1:0:21 blocked for more than 143 seconds.
Not tainted 6.5.0-rc4-syzkaller-00118-g55c3e571d2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:24272 pid:21 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc79/0x30a0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
unregister_netdev+0x12/0x30 net/core/dev.c:10923
r871xu_dev_remove+0x28e/0x480 drivers/staging/rtl8712/usb_intf.c:597
usb_unbind_interface+0x1dd/0x8d0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1270 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x39a/0xa40 drivers/base/core.c:3814
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1416
usb_disconnect+0x2e1/0x890 drivers/usb/core/hub.c:2252
hub_port_connect drivers/usb/core/hub.c:5280 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
port_event drivers/usb/core/hub.c:5740 [inline]
hub_event+0x1be0/0x4f30 drivers/usb/core/hub.c:5822
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
process_scheduled_works kernel/workqueue.c:2664 [inline]
worker_thread+0x896/0x1110 kernel/workqueue.c:2750
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task kworker/0:5:6319 blocked for more than 143 seconds.
Not tainted 6.5.0-rc4-syzkaller-00118-g55c3e571d2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:24272 pid:6319 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc79/0x30a0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_timeout+0x27a/0x2c0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x3e2/0x5f0 kernel/sched/completion.c:106
r871xu_dev_remove+0x8a/0x480 drivers/staging/rtl8712/usb_intf.c:595
usb_unbind_interface+0x1dd/0x8d0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1270 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x39a/0xa40 drivers/base/core.c:3814
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1416
usb_disconnect+0x2e1/0x890 drivers/usb/core/hub.c:2252
hub_port_connect drivers/usb/core/hub.c:5280 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
port_event drivers/usb/core/hub.c:5740 [inline]
hub_event+0x1be0/0x4f30 drivers/usb/core/hub.c:5822
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
process_scheduled_works kernel/workqueue.c:2664 [inline]
worker_thread+0x896/0x1110 kernel/workqueue.c:2750
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task kworker/1:9:19142 blocked for more than 144 seconds.
Not tainted 6.5.0-rc4-syzkaller-00118-g55c3e571d2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:9 state:D stack:24608 pid:19142 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc79/0x30a0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_timeout+0x27a/0x2c0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x3e2/0x5f0 kernel/sched/completion.c:106
r871xu_dev_remove+0x8a/0x480 drivers/staging/rtl8712/usb_intf.c:595
usb_unbind_interface+0x1dd/0x8d0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1270 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x39a/0xa40 drivers/base/core.c:3814
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1416
usb_disconnect+0x2e1/0x890 drivers/usb/core/hub.c:2252
hub_port_connect drivers/usb/core/hub.c:5280 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
port_event drivers/usb/core/hub.c:5740 [inline]
hub_event+0x1be0/0x4f30 drivers/usb/core/hub.c:5822
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
process_scheduled_works kernel/workqueue.c:2664 [inline]
worker_thread+0x896/0x1110 kernel/workqueue.c:2750
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff87ea74b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
#0: ffffffff87ea71b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
6 locks held by kworker/1:0/21:
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000016fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888104786190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888104786190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f30 drivers/usb/core/hub.c:5768
#3: ffff8881165b6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff8881165b6190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x890 drivers/usb/core/hub.c:2243
#4: ffff88810628d160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff88810628d160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff88810628d160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
#5: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0x12/0x30 net/core/dev.c:10923
1 lock held by khungtaskd/28:
#0: ffffffff87ea80c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
2 locks held by dhcpcd/2412:
#0: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x1d3/0x1f00 net/ipv4/devinet.c:1074
#1: ffff88811ec04db0 (&padapter->mutex_start){+.+.}-{3:3}, at: netdev_open+0x32/0x820 drivers/staging/rtl8712/os_intfs.c:391
2 locks held by getty/2432:
#0: ffff888102f7c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000452f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187
5 locks held by udevd/5259:
#0: ffff88813c9ae848 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x99/0xb0 fs/file.c:1046
#1: ffff88811f76f9e0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#2: ffff88811f735888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
#3: ffff88811384eda0 (kn->active#28){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
#4: ffff888118a25190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
#4: ffff888118a25190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
5 locks held by udevd/5320:
#0: ffff88810c3ef9c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x99/0xb0 fs/file.c:1046
#1: ffff888113603540 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#2: ffff8881140b9088 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
#3: ffff88810eb71490 (kn->active#28){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
#4: ffff88813f2b4190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
#4: ffff88813f2b4190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
3 locks held by kworker/1:6/5327:
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc90001edfd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635
3 locks held by kworker/1:7/6003:
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000d337d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10177
5 locks held by udevd/6004:
#0: ffff88813ca3bc48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x99/0xb0 fs/file.c:1046
#1: ffff8881087f6540 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#2: ffff88810cfbcc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
#3: ffff8881129e83a8 (kn->active#28){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
#4: ffff8881165b6190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
#4: ffff8881165b6190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
5 locks held by kworker/1:8/6017:
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000d3d7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888106383190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888106383190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f30 drivers/usb/core/hub.c:5768
#3: ffff888104787500 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3138 [inline]
#3: ffff888104787500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5337 [inline]
#3: ffff888104787500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#3: ffff888104787500 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#3: ffff888104787500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x28b4/0x4f30 drivers/usb/core/hub.c:5822
#4: ffff888105fe9768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5338 [inline]
#4: ffff888105fe9768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#4: ffff888105fe9768 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#4: ffff888105fe9768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x28da/0x4f30 drivers/usb/core/hub.c:5822
3 locks held by kworker/0:4/6116:
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810b345938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000d747d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635
5 locks held by udevd/6180:
#0: ffff8881037bcd48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x99/0xb0 fs/file.c:1046
#1: ffff88811e9d0668 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#2: ffff88810f3a9c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
#3: ffff88811fad8a00 (kn->active#28){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
#4: ffff88810ba73190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
#4: ffff88810ba73190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
5 locks held by kworker/0:5/6319:
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000def7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888106313190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888106313190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f30 drivers/usb/core/hub.c:5768
#3: ffff888118a25190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff888118a25190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x890 drivers/usb/core/hub.c:2243
#4: ffff8881017a9160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff8881017a9160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff8881017a9160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
3 locks held by kworker/1:5/10825:
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000fe27d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10177
3 locks held by kworker/0:3/16174:
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000e227d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10177
3 locks held by kworker/0:7/17888:
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc90010867d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10177
5 locks held by kworker/1:9/19142:
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000d8e7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888106363190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888106363190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f30 drivers/usb/core/hub.c:5768
#3: ffff88813f2b4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff88813f2b4190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x890 drivers/usb/core/hub.c:2243
#4: ffff88810177e160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff88810177e160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff88810177e160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
3 locks held by kworker/1:3/24547:
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc90010d47d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffffffff88f95628 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10177
2 locks held by kworker/u4:2/27566:
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc900103f7d80 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
3 locks held by kworker/0:0/30456:
6 locks held by kworker/0:2/31056:
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c65e538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000246fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888105bf7190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888105bf7190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f30 drivers/usb/core/hub.c:5768
#3: ffff88810ba73190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff88810ba73190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
#4: ffff8881023a2160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff8881023a2160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
#5: ffffffff87eb3440 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:3997
2 locks held by kworker/u4:0/32318:
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff888100079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000e127d80 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc4-syzkaller-00118-g55c3e571d2a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x27b/0x2e0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf29/0x11b0 kernel/hung_task.c:379
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:112