bisecting fixing commit since 6e764bcd1cf72a2846c0e53d3975a09b242c04c9
building syzkaller on b599f2fcc734e2183016a340d4f6fc2891d8e41f
testing commit 6e764bcd1cf72a2846c0e53d3975a09b242c04c9
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e120b21d61e2baf9572aeb0255a59ee637f930a2dae9794cc0fe975c5f2dcbca
all runs: crashed: INFO: task hung in pn533_finalize_setup
testing current HEAD cfb92440ee71adcc2105b0890bb01ac3cddb8507
testing commit cfb92440ee71adcc2105b0890bb01ac3cddb8507
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 107bf40d0252db1e2ee40fe7fa5bd51650cafc360dbcd817e82a0a292ffc0cae
all runs: crashed: INFO: task hung in pn533_finalize_setup
revisions tested: 2, total time: 24m58.536913929s (build: 12m46.796093816s, test: 11m23.28143559s)
the crash still happens on HEAD
commit msg: Linux 5.17-rc5
crash: INFO: task hung in pn533_finalize_setup
INFO: task kworker/1:0:20 blocked for more than 143 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:26440 pid: 20 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:2:1138 blocked for more than 144 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:26456 pid: 1138 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:3:1149 blocked for more than 145 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:26616 pid: 1149 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/1:6:3663 blocked for more than 146 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D
stack:25872 pid: 3663 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:5:3933 blocked for more than 146 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:26336 pid: 3933 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:7:3976 blocked for more than 147 seconds.
Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:26432 pid: 3976 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x1c2/0xb60 drivers/base/dd.c:596
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
2 locks held by kworker/u4:1/10:
2 locks held by ksoftirqd/1/19:
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:489 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1318 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1616 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x2680 kernel/sched/core.c:6218
#1: ffff8880b9f27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891
5 locks held by kworker/1:0/20:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc90000da7dc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801c9b5220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801c9b5220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff8880725af220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff8880725af220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff88807bb001a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807bb001a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
1 lock held by khungtaskd/26:
#0: ffffffff8ad78d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
3 locks held by kworker/u4:2/44:
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:489
#1: ffff8880b9f27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x176/0x4e0 kernel/sched/psi.c:882
#2: ffff8880b9f28498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x49/0x1a0 kernel/time/timer.c:946
5 locks held by kworker/0:2/1138:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc90004cc7dc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801c891220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801c891220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff88807a115220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88807a115220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff888064be11a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888064be11a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/0:3/1149:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc90004c77dc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801c3dd220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801c3dd220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff88801a272220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88801a272220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff88807af761a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807af761a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
2 locks held by getty/3312:
#0: ffff88802229e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900027662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9dd/0xed0 drivers/tty/n_tty.c:2075
5 locks held by kworker/1:6/3663:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc900024dfdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801c9cd220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801c9cd220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff88801d8fd220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88801d8fd220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff888146c861a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888146c861a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/0:5/3933:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc9000265fdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801ca31220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ca31220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff88807d4ea220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88807d4ea220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff88807c02a1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807c02a1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/0:7/3976:
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888010bd8538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x79e/0x1410 kernel/workqueue.c:2278
#1: ffffc900028afdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cb/0x1410 kernel/workqueue.c:2282
#2: ffff88801ca19220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801ca19220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x3930 drivers/usb/core/hub.c:5688
#3: ffff888064af8220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888064af8220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff88807af771a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88807af771a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
3 locks held by udevd/4057:
#0: ffff888063ac8888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff888063ac8888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:242
#1: ffff88806d3630f0 (kn->active#56){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff88806d3630f0 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:242
#2: ffff88807a115220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff88807a115220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
3 locks held by udevd/4131:
#0: ffff888065030088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff888065030088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:242
#1: ffff888064d86a00 (kn->active#56){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff888064d86a00 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:242
#2: ffff888064af8220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff888064af8220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
3 locks held by udevd/4132:
#0: ffff888063a9a888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
#0: ffff888063a9a888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:242
#1: ffff88806514f1d8 (kn->active#56){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff88806514f1d8 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:242
#2: ffff88801a272220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff88801a272220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
1 lock held by syz-executor.1/22803:
#0:
ffff8880b9e39c18
(&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:489 [inline]
(&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1318 [inline]
(&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1616 [inline]
(&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x2680 kernel/sched/core.c:6218
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.17.0-rc5-syzkaller #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+0x57/0x7d lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x30/0xc0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x140/0x170 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+0x88c/0xbf0 kernel/hung_task.c:369
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 61 Comm: kworker/u4:3 Not tainted 5.17.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy16 ieee80211_iface_work
RIP: 0010:ieee80211_sta_last_active+0x36/0xb0 net/mac80211/sta_info.c:2578
Code: fe ff 48 8d bb 40 07 00 00 48 89 fa 48 89 c5 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 5b 48 8b 83 40 07 00 00 <48> 8d 7d 08 48 85 c0 74 29 48 ba 00 00 00 00 00 fc ff df 48 89 f9
RSP: 0018:ffffc90001a7fbb8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888079954000 RCX: 0000000000000000
RDX: 1ffff1100f32a8e8 RSI: 0000000000000008 RDI: ffff888079954740
RBP: ffff8880799544f0 R08: 0000000000000000 R09: ffffc90001a7fb17
R10: fffff5200034ff62 R11: 0000000000000001 R12: ffff88801be398e0
R13: fffffbfff1541e30 R14: ffff888079954000 R15: ffff888062534c40
FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000002981708 CR3: 000000000aa8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_ibss_sta_expire net/mac80211/ibss.c:1258 [inline]
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1298 [inline]
ieee80211_ibss_work+0x44d/0xcd0 net/mac80211/ibss.c:1709
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess), 1 bytes skipped:
0: ff 48 8d decl -0x73(%rax)
3: bb 40 07 00 00 mov $0x740,%ebx
8: 48 89 fa mov %rdi,%rdx
b: 48 89 c5 mov %rax,%rbp
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 48 c1 ea 03 shr $0x3,%rdx
1c: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
20: 75 5b jne 0x7d
22: 48 8b 83 40 07 00 00 mov 0x740(%rbx),%rax
* 29: 48 8d 7d 08 lea 0x8(%rbp),%rdi <-- trapping instruction
2d: 48 85 c0 test %rax,%rax
30: 74 29 je 0x5b
32: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
39: fc ff df
3c: 48 89 f9 mov %rdi,%rcx