INFO: task kworker/1:5:3200 blocked for more than 143 seconds.
Not tainted 5.9.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:23192 pid: 3200 ppid: 2 flags:0x80004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:3778 [inline]
__schedule+0x88f/0x1f80 kernel/sched/core.c:4527
schedule+0xcd/0x2b0 kernel/sched/core.c:4602
schedule_timeout+0x1d8/0x250 kernel/time/timer.c:1855
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
flush_workqueue+0x3ff/0x13e0 kernel/workqueue.c:2832
flush_scheduled_work include/linux/workqueue.h:597 [inline]
ath6kl_usb_flush_all drivers/net/wireless/ath/ath6kl/usb.c:476 [inline]
ath6kl_usb_destroy+0xae/0x230 drivers/net/wireless/ath/ath6kl/usb.c:609
ath6kl_usb_probe+0xc6e/0x11d0 drivers/net/wireless/ath/ath6kl/usb.c:1166
usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
really_probe+0x291/0xde0 drivers/base/dd.c:553
driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
__device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
__device_attach+0x228/0x4a0 drivers/base/dd.c:912
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
device_add+0xb51/0x1c70 drivers/base/core.c:2926
usb_set_configuration+0x1111/0x1880 drivers/usb/core/message.c:2165
usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:240
usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
really_probe+0x291/0xde0 drivers/base/dd.c:553
driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
__device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
__device_attach+0x228/0x4a0 drivers/base/dd.c:912
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
device_add+0xb51/0x1c70 drivers/base/core.c:2926
usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554
hub_port_connect drivers/usb/core/hub.c:5222 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5362 [inline]
port_event drivers/usb/core/hub.c:5508 [inline]
hub_event+0x2348/0x42b0 drivers/usb/core/hub.c:5590
process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
process_scheduled_works kernel/workqueue.c:2331 [inline]
worker_thread+0x82b/0x1120 kernel/workqueue.c:2417
kthread+0x392/0x470 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
INFO: task kworker/0:8:13680 blocked for more than 143 seconds.
Not tainted 5.9.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:8 state:D stack:23912 pid:13680 ppid: 2 flags:0x80004000
Workqueue: events request_firmware_work_func
Call Trace:
context_switch kernel/sched/core.c:3778 [inline]
__schedule+0x88f/0x1f80 kernel/sched/core.c:4527
schedule+0xcd/0x2b0 kernel/sched/core.c:4602
schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4661
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10a0 kernel/locking/mutex.c:1103
device_lock include/linux/device.h:785 [inline]
ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1110 [inline]
ath9k_hif_usb_firmware_cb+0x3ac/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
request_firmware_work_func+0x126/0x250 drivers/base/firmware_loader/main.c:1006
process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
kthread+0x392/0x470 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
INFO: task kworker/1:0:20536 blocked for more than 144 seconds.
Not tainted 5.9.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:24112 pid:20536 ppid: 2 flags:0x80004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:3778 [inline]
__schedule+0x88f/0x1f80 kernel/sched/core.c:4527
schedule+0xcd/0x2b0 kernel/sched/core.c:4602
schedule_timeout+0x1d8/0x250 kernel/time/timer.c:1855
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
flush_workqueue+0x3ff/0x13e0 kernel/workqueue.c:2832
flush_scheduled_work include/linux/workqueue.h:597 [inline]
ath6kl_usb_flush_all drivers/net/wireless/ath/ath6kl/usb.c:476 [inline]
hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:856 [inline]
ath6kl_usb_power_off+0xbe/0xf0 drivers/net/wireless/ath/ath6kl/usb.c:1055
ath6kl_hif_power_off drivers/net/wireless/ath/ath6kl/hif-ops.h:143 [inline]
ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:255 [inline]
ath6kl_core_init+0x236/0x10d0 drivers/net/wireless/ath/ath6kl/core.c:66
ath6kl_usb_probe+0xc30/0x11d0 drivers/net/wireless/ath/ath6kl/usb.c:1155
usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
really_probe+0x291/0xde0 drivers/base/dd.c:553
driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
__device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
__device_attach+0x228/0x4a0 drivers/base/dd.c:912
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
device_add+0xb51/0x1c70 drivers/base/core.c:2926
usb_set_configuration+0x1111/0x1880 drivers/usb/core/message.c:2165
usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:240
usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
really_probe+0x291/0xde0 drivers/base/dd.c:553
driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
__device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
__device_attach+0x228/0x4a0 drivers/base/dd.c:912
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
device_add+0xb51/0x1c70 drivers/base/core.c:2926
usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554
hub_port_connect drivers/usb/core/hub.c:5222 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5362 [inline]
port_event drivers/usb/core/hub.c:5508 [inline]
hub_event+0x2348/0x42b0 drivers/usb/core/hub.c:5590
process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
kthread+0x392/0x470 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Showing all locks held in the system:
8 locks held by kworker/0:0/5:
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881da207da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d4442218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d4442218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x42b0 drivers/usb/core/hub.c:5536
#3: ffff8881d4445580 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3029 [inline]
#3: ffff8881d4445580 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5153 [inline]
#3: ffff8881d4445580 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5362 [inline]
#3: ffff8881d4445580 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5508 [inline]
#3: ffff8881d4445580 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x216c/0x42b0 drivers/usb/core/hub.c:5590
#4: ffff8881d4b26468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b6/0x2e40 drivers/usb/core/hub.c:4581
#5: ffff8881db232ad8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1292 [inline]
#5: ffff8881db232ad8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x220/0x1f80 kernel/sched/core.c:4445
#6: ffffffff87313c20 (rcu_read_lock){....}-{1:2}, at: cpu_of kernel/sched/sched.h:1072 [inline]
#6: ffffffff87313c20 (rcu_read_lock){....}-{1:2}, at: __update_idle_core+0x39/0x3e0 kernel/sched/fair.c:6014
#7: ffffffff89a2f2b8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:636
1 lock held by khungtaskd/23:
#0: ffffffff87313c20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x264 kernel/locking/lockdep.c:5852
5 locks held by kworker/1:2/72:
5 locks held by kworker/0:2/115:
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881d23dfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d440a218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d440a218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x42b0 drivers/usb/core/hub.c:5536
#3: ffff8881c9c02218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#3: ffff8881c9c02218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
#4: ffff8881c858b1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#4: ffff8881c858b1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
1 lock held by in:imklog/246:
#0: ffff8881cb0ce870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
2 locks held by agetty/252:
#0: ffff8881d8ae5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffffc900009fa2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a30 drivers/tty/n_tty.c:2156
2 locks held by agetty/254:
#0: ffff8881d8af1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffffc900009f22e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a30 drivers/tty/n_tty.c:2156
2 locks held by agetty/255:
#0: ffff8881d8af3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffffc900009ee2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a30 drivers/tty/n_tty.c:2156
2 locks held by agetty/256:
#0: ffff8881d6fa9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffffc90000a122e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a30 drivers/tty/n_tty.c:2156
5 locks held by kworker/0:5/3114:
5 locks held by kworker/1:5/3200:
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881c8fefda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d448a218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d448a218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x42b0 drivers/usb/core/hub.c:5536
#3: ffff8881d28a3218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#3: ffff8881d28a3218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
#4: ffff8881c56421a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#4: ffff8881c56421a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
3 locks held by kworker/1:6/3209:
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881c8497da8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d4472218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d4472218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1110 [inline]
#2: ffff8881d4472218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3ac/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
3 locks held by kworker/1:9/7165:
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881c703fda8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d440a218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d440a218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1110 [inline]
#2: ffff8881d440a218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3ac/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
2 locks held by login/12889:
#0: ffff8881ceeca098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffff8881ceeca130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:888 [inline]
#1: ffff8881ceeca130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:911 [inline]
#1: ffff8881ceeca130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write+0x280/0x870 drivers/tty/tty_io.c:1046
3 locks held by kworker/0:8/13680:
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881da064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881d052fda8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d44f2218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d44f2218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1110 [inline]
#2: ffff8881d44f2218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3ac/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
5 locks held by kworker/1:0/20536:
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8881d8862538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x82b/0x15f0 kernel/workqueue.c:2240
#1: ffff8881a4217da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x85f/0x15f0 kernel/workqueue.c:2244
#2: ffff8881d44f2218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#2: ffff8881d44f2218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x42b0 drivers/usb/core/hub.c:5536
#3: ffff8881d0c3c218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#3: ffff8881d0c3c218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
#4: ffff8881cdce01a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:785 [inline]
#4: ffff8881cdce01a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:887
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 23 Comm: khungtaskd Not tainted 5.9.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x107/0x16e lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x74/0xb6 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1da/0x1f4 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
watchdog+0xd6a/0xfd0 kernel/hung_task.c:295
kthread+0x392/0x470 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 116 Comm: systemd-journal Not tainted 5.9.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:___bpf_prog_run+0x4b/0x6640 kernel/bpf/core.c:1391
Code: 00 fc ff df 48 83 ec 30 49 01 dd c7 44 24 04 00 00 00 00 48 89 44 24 10 e8 82 92 f5 ff 4c 89 f8 4c 89 fa 48 c1 e8 03 83 e2 07 <0f> b6 04 18 38 d0 7f 08 84 c0 0f 85 56 4f 00 00 41 0f b6 07 48 8d
RSP: 0018:ffff8881d1c87c08 EFLAGS: 00000246
RAX: 1ffff92000119824 RBX: dffffc0000000000 RCX: ffffffff814ac319
RDX: 0000000000000000 RSI: ffffffff814a7f3e RDI: 0000000000000006
RBP: ffff8881d1c87cd0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000027 R11: 0000000000000000 R12: 00000000000000b6
R13: ffffed103a390f9c R14: 0000000000000027 R15: ffffc900008cc120
FS: 00007f44579558c0(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4453056028 CR3: 00000001d268d000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__bpf_prog_run32+0x8f/0xd0 kernel/bpf/core.c:1681
bpf_dispatcher_nop_func include/linux/bpf.h:586 [inline]
bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline]
seccomp_run_filters kernel/seccomp.c:324 [inline]
__seccomp_filter+0x14e/0x14c0 kernel/seccomp.c:937
__secure_computing+0xac/0x290 kernel/seccomp.c:1070
syscall_trace_enter.constprop.0+0x7e/0x240 kernel/entry/common.c:58
do_syscall_64+0xf/0x40 arch/x86/entry/common.c:41
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4456beef17
Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007fffa1cb6338 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 000055cee96071e0 RCX: 00007f4456beef17
RDX: 0000000000000000 RSI: 00007fffa1cb6450 RDI: 000055cee96071e0
RBP: 00007fffa1cb6450 R08: dcaed2bb37d0a60a R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000074
R13: 00007fffa1cb63f8 R14: 00007fffa1cb6450 R15: 00007fffa1cb69e8