INFO: task kworker/1:2:920 blocked for more than 143 seconds.
Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:19864 pid: 920 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6436
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
netdev_run_todo+0xb0a/0xd00 net/core/dev.c:9967
unregister_netdev+0x1a0/0x210 net/core/dev.c:10475
r871xu_dev_remove+0xac/0x460 drivers/staging/rtl8712/usb_intf.c:599
usb_unbind_interface+0x1f2/0x860 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1209 [inline]
device_release_driver_internal+0x526/0x810 drivers/base/dd.c:1242
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6f1/0xbf0 drivers/base/core.c:3592
usb_disable_device+0x407/0x800 drivers/usb/core/message.c:1419
usb_disconnect+0x33a/0x8a0 drivers/usb/core/hub.c:2228
hub_port_connect+0x29c/0x2910 drivers/usb/core/hub.c:5202
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5502
port_event+0xca0/0x13e0 drivers/usb/core/hub.c:5660
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5742
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0xe18/0x1300 kernel/workqueue.c:2456
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
INFO: task kworker/0:8:1224 blocked for more than 143 seconds.
Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:8 state:D stack:20176 pid: 1224 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
r871xu_dev_remove+0x6f/0x460 drivers/staging/rtl8712/usb_intf.c:597
usb_unbind_interface+0x1f2/0x860 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1209 [inline]
device_release_driver_internal+0x526/0x810 drivers/base/dd.c:1242
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6f1/0xbf0 drivers/base/core.c:3592
usb_disable_device+0x407/0x800 drivers/usb/core/message.c:1419
usb_disconnect+0x33a/0x8a0 drivers/usb/core/hub.c:2228
hub_port_connect+0x29c/0x2910 drivers/usb/core/hub.c:5202
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5502
port_event+0xca0/0x13e0 drivers/usb/core/hub.c:5660
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5742
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0xe18/0x1300 kernel/workqueue.c:2456
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
INFO: task kworker/0:5:8911 blocked for more than 144 seconds.
Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:20016 pid: 8911 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
r871xu_dev_remove+0x6f/0x460 drivers/staging/rtl8712/usb_intf.c:597
usb_unbind_interface+0x1f2/0x860 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1209 [inline]
device_release_driver_internal+0x526/0x810 drivers/base/dd.c:1242
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6f1/0xbf0 drivers/base/core.c:3592
usb_disable_device+0x407/0x800 drivers/usb/core/message.c:1419
usb_disconnect+0x33a/0x8a0 drivers/usb/core/hub.c:2228
hub_port_connect+0x29c/0x2910 drivers/usb/core/hub.c:5202
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5502
port_event+0xca0/0x13e0 drivers/usb/core/hub.c:5660
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5742
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0xe18/0x1300 kernel/workqueue.c:2456
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
INFO: task kworker/1:12:11614 blocked for more than 144 seconds.
Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:12 state:D stack:20176 pid:11614 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
r871xu_dev_remove+0x6f/0x460 drivers/staging/rtl8712/usb_intf.c:597
usb_unbind_interface+0x1f2/0x860 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1209 [inline]
device_release_driver_internal+0x526/0x810 drivers/base/dd.c:1242
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6f1/0xbf0 drivers/base/core.c:3592
usb_disable_device+0x407/0x800 drivers/usb/core/message.c:1419
usb_disconnect+0x33a/0x8a0 drivers/usb/core/hub.c:2228
hub_port_connect+0x29c/0x2910 drivers/usb/core/hub.c:5202
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5502
port_event+0xca0/0x13e0 drivers/usb/core/hub.c:5660
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5742
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0xe18/0x1300 kernel/workqueue.c:2456
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
3 locks held by kworker/0:0/5:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90000ca7d20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
1 lock held by khungtaskd/27:
#0: ffffffff8cb1d460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
6 locks held by kworker/1:2/920:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90004367d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff888147424220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff888147424220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff888064b2e220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888064b2e220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff888061f931a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888061f931a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff888061f931a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
#5: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: netdev_run_todo+0xb0a/0xd00 net/core/dev.c:9967
2 locks held by dhcpcd/3176:
#0: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x22c/0x1d10 net/ipv4/devinet.c:1068
#1: ffff88805ecacea0 (&padapter->mutex_start){+.+.}-{3:3}, at: netdev_open+0x31/0x580 drivers/staging/rtl8712/os_intfs.c:375
2 locks held by getty/3280:
#0: ffff88807e638098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2075
3 locks held by kworker/0:3/3635:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90002a4fd20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
3 locks held by kworker/1:6/3655:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90002bafd20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
3 locks held by kworker/1:9/3784:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc900039efd20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
3 locks held by udevd/3793:
#0: ffff888061cbbc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff888061cbbc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x19b/0x580 fs/kernfs/file.c:242
#1: ffff88807bb332c0 (kn->active#56){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff88807bb332c0 (kn->active#56){++++}-{0:0}, at: kernfs_fop_read_iter+0x1b3/0x580 fs/kernfs/file.c:242
#2: ffff888064b2e220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff888064b2e220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x33/0x3a0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3818:
#0: ffff8880139f7888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff8880139f7888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x19b/0x580 fs/kernfs/file.c:242
#1: ffff88802352e578 (kn->active#56){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff88802352e578 (kn->active#56){++++}-{0:0}, at: kernfs_fop_read_iter+0x1b3/0x580 fs/kernfs/file.c:242
#2: ffff888023832220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff888023832220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x33/0x3a0 drivers/usb/core/sysfs.c:873
4 locks held by udevd/4653:
#0: ffff888012170418 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xad/0xd30 fs/seq_file.c:182
#1: ffff88807e417888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x50/0x3b0 fs/kernfs/file.c:112
#2: ffff88801a883578 (kn->active#59){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x3b0 fs/kernfs/file.c:113
#3: ffff8880145e1220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#3: ffff8880145e1220 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x22/0xa0 drivers/usb/core/sysfs.c:141
3 locks held by udevd/4848:
#0: ffff8880789c9088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff8880789c9088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x19b/0x580 fs/kernfs/file.c:242
#1: ffff888062dc93a8 (kn->active#56){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff888062dc93a8 (kn->active#56){++++}-{0:0}, at: kernfs_fop_read_iter+0x1b3/0x580 fs/kernfs/file.c:242
#2: ffff8880641e2220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff8880641e2220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x33/0x3a0 drivers/usb/core/sysfs.c:873
3 locks held by kworker/1:0/31835:
#0: ffff88814a259138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90003f3fd20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4608
5 locks held by kworker/0:1/32129:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90009d27d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff88814740c220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88814740c220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff888062dbb220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888062dbb220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff888078cd21a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888078cd21a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff888078cd21a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
5 locks held by kworker/1:1/32731:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc900039cfd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff88801ec18220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ec18220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff8880769f4220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff8880769f4220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff8880632241a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8880632241a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff8880632241a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
5 locks held by kworker/0:8/1224:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc9000411fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff88801ecbc220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ecbc220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff8880145e1220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff8880145e1220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff8880121d91a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8880121d91a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff8880121d91a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
3 locks held by kworker/0:13/3070:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90008bdfd20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
3 locks held by kworker/1:4/4866:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc9000e9b7d20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
3 locks held by kworker/0:4/8715:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90004cf7d20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
5 locks held by kworker/0:5/8911:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90004d3fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff88801ec3c220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ec3c220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff888023832220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888023832220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff88807c99b1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807c99b1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff88807c99b1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
5 locks held by kworker/1:12/11614:
#0: ffff888012786938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc900042d7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffff88801ec61220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ec61220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5688
#3: ffff8880641e2220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff8880641e2220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xfa/0x8a0 drivers/usb/core/hub.c:2219
#4: ffff88807c11c1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807c11c1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff88807c11c1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xc1/0x810 drivers/base/dd.c:1239
2 locks held by kworker/u4:0/12269:
#0: ffff8880b9b39798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:489
#1: ffff8880b9b27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4d3/0x790 kernel/sched/psi.c:891
3 locks held by kworker/1:13/12743:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7db/0x1190 kernel/workqueue.c:2280
#1: ffffc90010f6fd20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x81b/0x1190 kernel/workqueue.c:2282
#2: ffffffff8db9a588 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:9789
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:116 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:556 [inline]
RIP: 0010:acpi_idle_enter+0x42d/0x790 drivers/acpi/processor_idle.c:692
Code: fd 48 83 e3 08 44 8b 7c 24 04 0f 85 22 01 00 00 4c 8d 74 24 40 e8 03 a2 0d fd eb 0c e8 ec fb 06 fd 0f 00 2d 75 74 64 06 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 23 00 74 08 4c 89 f7 e8 ad b6 53 fd
RSP: 0018:ffffc90000d57be0 EFLAGS: 00000282
RAX: 4f167bef91f6d600 RBX: 0000000000000000 RCX: ffffffff90bf5803
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000d57c90 R08: ffffffff818c3c10 R09: ffffed1002402ae1
R10: ffffed1002402ae1 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880127c0864 R14: ffffc90000d57c20 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40c5527000 CR3: 0000000065cdf000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cpuidle_enter_state+0x507/0xea0 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:158 [inline]
cpuidle_idle_call kernel/sched/idle.c:239 [inline]
do_idle+0x3e8/0x670 kernel/sched/idle.c:306
cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403
secondary_startup_64_no_verify+0xc4/0xcb
----------------
Code disassembly (best guess):
0: fd std
1: 48 83 e3 08 and $0x8,%rbx
5: 44 8b 7c 24 04 mov 0x4(%rsp),%r15d
a: 0f 85 22 01 00 00 jne 0x132
10: 4c 8d 74 24 40 lea 0x40(%rsp),%r14
15: e8 03 a2 0d fd callq 0xfd0da21d
1a: eb 0c jmp 0x28
1c: e8 ec fb 06 fd callq 0xfd06fc0d
21: 0f 00 2d 75 74 64 06 verw 0x6647475(%rip) # 0x664749d
28: fb sti
29: f4 hlt
* 2a: 4c 89 f3 mov %r14,%rbx <-- trapping instruction
2d: 48 c1 eb 03 shr $0x3,%rbx
31: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
36: 74 08 je 0x40
38: 4c 89 f7 mov %r14,%rdi
3b: e8 ad b6 53 fd callq 0xfd53b6ed