INFO: task kworker/0:1:3711 blocked for more than 143 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:20408 pid: 3711 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 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_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/0:4:3739 blocked for more than 143 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:20824 pid: 3739 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 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_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/1:5:3740 blocked for more than 144 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:19776 pid: 3740 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 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_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/0:7:3743 blocked for more than 144 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:20408 pid: 3743 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common+0xecf/0x26e0 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:785
unregister_netdev+0x79/0x210 net/core/dev.c:10805
r871xu_dev_remove+0xac/0x460 drivers/staging/rtl8712/usb_intf.c:599
usb_unbind_interface+0x1f2/0x860 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/1:6:3744 blocked for more than 145 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:20256 pid: 3744 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 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_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/1:7:3745 blocked for more than 145 seconds.
Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7 state:D stack:20824 pid: 3745 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 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_remove drivers/base/dd.c:532 [inline]
__device_release_driver drivers/base/dd.c:1200 [inline]
device_release_driver_internal+0x56b/0x820 drivers/base/dd.c:1223
bus_remove_device+0x2fd/0x410 drivers/base/bus.c:529
device_del+0x6ec/0xbe0 drivers/base/core.c:3592
usb_disable_device+0x3dd/0x820 drivers/usb/core/message.c:1419
usb_disconnect+0x346/0x890 drivers/usb/core/hub.c:2228
hub_port_connect+0x2a2/0x2930 drivers/usb/core/hub.c:5207
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xe72/0x13a0 drivers/usb/core/hub.c:5665
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5747
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cb1b020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/1:2/921:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc90004977d00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:10085
3 locks held by kworker/0:3/2929:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000b75fd00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:10085
2 locks held by dhcpcd/3178:
#0: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2cd/0x1ab0 net/ipv4/devinet.c:1072
#1: ffff88806c9fcee0 (&padapter->mutex_start){+.+.}-{3:3}, at: netdev_open+0x31/0x580 drivers/staging/rtl8712/os_intfs.c:375
2 locks held by getty/3277:
#0: ffff88814851a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002ce62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ad/0x1c90 drivers/tty/n_tty.c:2075
5 locks held by kworker/0:1/3711:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc900036afd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888148e3d220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff888148e3d220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88806f33d220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88806f33d220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff88807db6a1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807db6a1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff88807db6a1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
3 locks held by kworker/1:3/3737:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000382fd00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:10085
5 locks held by kworker/0:4/3739:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000384fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff88801f935220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801f935220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88801be50220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88801be50220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff8880204dc1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8880204dc1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff8880204dc1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
5 locks held by kworker/1:5/3740:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000385fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff88801ec74220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ec74220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88806eee4220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88806eee4220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff88807dc621a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807dc621a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff88807dc621a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
3 locks held by kworker/0:6/3742:
#0: ffff88814bdf1938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000387fd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x15/0x30 net/ipv6/addrconf.c:4603
6 locks held by kworker/0:7/3743:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000388fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888148e65220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff888148e65220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88807e7ec220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88807e7ec220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff88806e4401a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88806e4401a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff88806e4401a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
#5: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0x79/0x210 net/core/dev.c:10805
5 locks held by kworker/1:6/3744:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000389fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888148e55220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff888148e55220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88806ebf0220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88806ebf0220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff88807a14e1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807a14e1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff88807a14e1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
5 locks held by kworker/1:7/3745:
#0: ffff8880172bb538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc900038afd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff88801f960220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801f960220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5693
#3: ffff88807a398220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88807a398220 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x890 drivers/usb/core/hub.c:2219
#4: ffff88801709b1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88801709b1a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff88801709b1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x820 drivers/base/dd.c:1220
3 locks held by kworker/1:8/3779:
#0: ffff88814bdf1938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc900038efd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x15/0x30 net/ipv6/addrconf.c:4603
3 locks held by udevd/3790:
#0: ffff88807f17ac88 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#0: ffff88807f17ac88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x19b/0x580 fs/kernfs/file.c:237
#1: ffff8880248a6008 (kn->active#82){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:199 [inline]
#1: ffff8880248a6008 (kn->active#82){++++}-{0:0}, at: kernfs_fop_read_iter+0x1b3/0x580 fs/kernfs/file.c:237
#2: ffff88801be50220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff88801be50220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x30/0x390 drivers/usb/core/sysfs.c:873
3 locks held by kworker/0:8/3800:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc900039bfd00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:10085
3 locks held by kworker/1:10/3810:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc90003a5fd00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dba5568 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x50 net/core/dev.c:10085
4 locks held by udevd/3814:
#0: ffff88801cf2e540 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xad/0xd30 fs/seq_file.c:182
#1: ffff88807897b888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4f/0x3a0 fs/kernfs/file.c:112
#2: ffff88806f43ebd0 (kn->active#88){++++}-{0:0}, at: kernfs_seq_start+0x6e/0x3a0 fs/kernfs/file.c:113
#3: ffff88807e7ec220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#3: ffff88807e7ec220 (&dev->mutex){....}-{3:3}, at: serial_show+0x22/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by udevd/3838:
#0: ffff88801b8790a0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xad/0xd30 fs/seq_file.c:182
#1: ffff88806d9a4888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4f/0x3a0 fs/kernfs/file.c:112
#2: ffff888074218cb8 (kn->active#85){++++}-{0:0}, at: kernfs_seq_start+0x6e/0x3a0 fs/kernfs/file.c:113
#3: ffff88806ebf0220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#3: ffff88806ebf0220 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x22/0xa0 drivers/usb/core/sysfs.c:141
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #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+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 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+0xcf9/0xd40 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 45 Comm: kworker/u4:2 Not tainted 5.18.0-rc7-syzkaller-00048-gf993aed406ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
RIP: 0010:do_raw_spin_lock+0xc9/0x360 kernel/locking/spinlock_debug.c:114
Code: 48 89 44 24 20 80 3c 10 00 74 12 4c 89 ef e8 0e 72 6e 00 48 ba 00 00 00 00 00 fc ff df 49 8b 45 00 65 48 8b 0c 25 80 6f 02 00 <48> 89 4c 24 28 48 39 c8 0f 84 34 01 00 00 49 8d 5c 24 08 49 89 df
RSP: 0018:ffffc90000007aa0 EFLAGS: 00000046
RAX: ffffffffffffffff RBX: ffff88801cc76204 RCX: ffff8880116d9d80
RDX: dffffc0000000000 RSI: 1ffff92000000f5c RDI: ffff88801cc76200
RBP: ffffc90000007b70 R08: dffffc0000000000 R09: fffffbfff1f643fb
R10: fffffbfff1f643fb R11: 1ffffffff1f643fa R12: ffff88801cc76200
R13: ffff88801cc76210 R14: ffff88801cc76200 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa85501b1c0 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
_raw_spin_lock_irqsave+0xdd/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xa1/0x990 kernel/sched/core.c:4082
hrtimer_wakeup+0x5e/0x70 kernel/time/hrtimer.c:1939
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:preempt_count_add+0x4e/0x180 kernel/sched/core.c:5537
Code: e3 00 00 00 83 3d c1 7b 5d 0f 00 75 07 65 8b 05 a0 14 a7 7e 65 01 1d 99 14 a7 7e 48 c7 c0 a0 d6 b8 90 48 c1 e8 03 42 8a 04 38 <84> c0 0f 85 db 00 00 00 83 3d 93 7b 5d 0f 00 75 11 65 8b 05 72 14
RSP: 0018:ffffc90000b671c0 EFLAGS: 00000a06
RAX: 1ffffffff2171a04 RBX: 0000000000000001 RCX: ffffffff90b8d603
RDX: dffffc0000000000 RSI: ffffffff8172c33d RDI: 0000000000000001
RBP: 1ffff9200016ce58 R08: 0000000000000000 R09: ffffc90000b673b0
R10: fffff5200016ce64 R11: 1ffff9200016ce62 R12: ffffc90000b672f8
R13: ffffc90000b67308 R14: ffffffff8172c33d R15: dffffc0000000000
unwind_next_frame+0xc3/0x24c0 arch/x86/kernel/unwind_orc.c:428
arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:515
kasan_kmalloc include/linux/kasan.h:234 [inline]
kmem_cache_alloc_trace+0x94/0x310 mm/slub.c:3258
kmalloc include/linux/slab.h:581 [inline]
kzalloc include/linux/slab.h:714 [inline]
ieee802_11_parse_elems_crc+0xce/0x1130 net/mac80211/util.c:1502
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2251 [inline]
ieee80211_bss_info_update+0x845/0xc30 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1659/0x28c0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1581
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.608 msecs
----------------
Code disassembly (best guess):
0: 48 89 44 24 20 mov %rax,0x20(%rsp)
5: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1)
9: 74 12 je 0x1d
b: 4c 89 ef mov %r13,%rdi
e: e8 0e 72 6e 00 callq 0x6e7221
13: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
1a: fc ff df
1d: 49 8b 45 00 mov 0x0(%r13),%rax
21: 65 48 8b 0c 25 80 6f mov %gs:0x26f80,%rcx
28: 02 00
* 2a: 48 89 4c 24 28 mov %rcx,0x28(%rsp) <-- trapping instruction
2f: 48 39 c8 cmp %rcx,%rax
32: 0f 84 34 01 00 00 je 0x16c
38: 49 8d 5c 24 08 lea 0x8(%r12),%rbx
3d: 49 89 df mov %rbx,%r15