INFO: task syz-executor:5825 blocked for more than 143 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22448 pid:5825 tgid:5825 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_unregister+0xde/0x2c0 net/rfkill/core.c:1145
hci_unregister_dev+0x323/0x620 net/bluetooth/hci_core.c:2715
vhci_release+0x79/0xf0 drivers/bluetooth/hci_vhci.c:664
__fput+0x3f6/0xb60 fs/file_table.c:431
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2d70 kernel/exit.c:939
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2918
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2912f74997
RSP: 002b:00007ffe03c3b750 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000000678 RCX: 00007f2912f74997
RDX: 0000000040000000 RSI: 00007ffe03c3b7ac RDI: 00000000ffffffff
RBP: 00007ffe03c3b7ac R08: 0000000000000000 R09: 00007f2913dc4080
R10: 0000000000000000 R11: 0000000000000293 R12: 00005555672f75eb
R13: 00005555672f7590 R14: 00000000000ad6ac R15: 00007ffe03c3b800
INFO: task kworker/1:4:5875 blocked for more than 144 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4 state:D stack:17856 pid:5875 tgid:5875 ppid:2 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_global_led_trigger_worker+0x1b/0x160 net/rfkill/core.c:182
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task udevd:13444 blocked for more than 144 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25568 pid:13444 tgid:13444 ppid:5199 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:1014 [inline]
uevent_show+0x188/0x3b0 drivers/base/core.c:2736
dev_attr_show+0x53/0xe0 drivers/base/core.c:2430
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:488 [inline]
vfs_read+0x87f/0xbe0 fs/read_write.c:569
ksys_read+0x12f/0x260 fs/read_write.c:712
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0bc8716b6a
RSP: 002b:00007ffe84b07238 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055651ab9f8e0 RCX: 00007f0bc8716b6a
RDX: 0000000000001000 RSI: 000055651abad720 RDI: 0000000000000008
RBP: 000055651ab9f8e0 R08: 0000000000000008 R09: 0000000001000000
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffe84b07718 R15: 000000000000000a
INFO: task kworker/1:2:13620 blocked for more than 145 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:22272 pid:13620 tgid:13620 ppid:2 flags:0x00004000
Workqueue: events rfkill_sync_work
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:1014 [inline]
nfc_dev_down+0x2d/0x2e0 net/nfc/core.c:143
nfc_rfkill_set_block+0x39/0xe0 net/nfc/core.c:179
rfkill_set_block+0x203/0x560 net/rfkill/core.c:346
rfkill_sync+0x10a/0x1c0 net/rfkill/core.c:379
rfkill_sync_work+0x27/0x40 net/rfkill/core.c:1056
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.0.2243:15039 blocked for more than 145 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2243 state:D stack:26400 pid:15039 tgid:15038 ppid:5829 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
hci_register_dev+0x3cc/0xc60 net/bluetooth/hci_core.c:2617
hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:686 [inline]
hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:710 [inline]
hci_uart_tty_ioctl+0x7d0/0xc10 drivers/bluetooth/hci_ldisc.c:762
tty_ioctl+0x6ee/0x15d0 drivers/tty/tty_io.c:2812
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f137077e719
RSP: 002b:00007f13715ed038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1370935f80 RCX: 00007f137077e719
RDX: 0000000000000004 RSI: 00000000400455c8 RDI: 0000000000000003
RBP: 00007f13707f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1370935f80 R15: 00007ffcaef1ebc8
INFO: task syz.4.2248:15048 blocked for more than 145 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.2248 state:D stack:24960 pid:15048 tgid:15048 ppid:5825 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
__flush_work+0x776/0xc30 kernel/workqueue.c:4217
__cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4337
rfkill_unregister+0x95/0x2c0 net/rfkill/core.c:1139
nfc_unregister_device+0x94/0x330 net/nfc/core.c:1167
virtual_ncidev_close+0x4b/0xa0 drivers/nfc/virtual_ncidev.c:172
__fput+0x3f6/0xb60 fs/file_table.c:431
task_work_run+0x14e/0x250 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2912f7e719
RSP: 002b:00007ffe03c3b548 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f2913137a80 RCX: 00007f2912f7e719
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f2913137a80 R08: 00007f2913122000 R09: 00007ffe03c3b83f
R10: 00000000005f102c R11: 0000000000000246 R12: 00000000000ad9f0
R13: 00007ffe03c3b650 R14: 0000000000000032 R15: ffffffffffffffff
INFO: task syz-executor:15245 blocked for more than 145 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:27712 pid:15245 tgid:15245 ppid:1 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
hci_register_dev+0x3cc/0xc60 net/bluetooth/hci_core.c:2617
__vhci_create_device+0x344/0x7d0 drivers/bluetooth/hci_vhci.c:428
vhci_create_device drivers/bluetooth/hci_vhci.c:470 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
vhci_write+0x2c3/0x470 drivers/bluetooth/hci_vhci.c:607
new_sync_write fs/read_write.c:590 [inline]
vfs_write+0x5ae/0x1150 fs/read_write.c:683
ksys_write+0x12f/0x260 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23e8b7d1c0
RSP: 002b:00007ffc38da84b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f23e8b7d1c0
RDX: 0000000000000002 RSI: 00007ffc38da84ca RDI: 00000000000000ca
RBP: 00007f23e8d36a38 R08: 0000000000000000 R09: 00007f23e986d6c0
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
INFO: task syz-executor:15252 blocked for more than 146 seconds.
Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:27952 pid:15252 tgid:15252 ppid:1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5740 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
hci_register_dev+0x3cc/0xc60 net/bluetooth/hci_core.c:2617
__vhci_create_device+0x344/0x7d0 drivers/bluetooth/hci_vhci.c:428
vhci_create_device drivers/bluetooth/hci_vhci.c:470 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
vhci_write+0x2c3/0x470 drivers/bluetooth/hci_vhci.c:607
new_sync_write fs/read_write.c:590 [inline]
vfs_write+0x5ae/0x1150 fs/read_write.c:683
ksys_write+0x12f/0x260 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efdd9d7d1c0
RSP: 002b:00007ffe50efb708 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efdd9d7d1c0
RDX: 0000000000000002 RSI: 00007ffe50efb71a RDI: 00000000000000ca
RBP: 00007efdd9f36a38 R08: 0000000000000000 R09: 00007efddaa6d6c0
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
2 locks held by getty/5587:
#0: ffff888031d1d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900032232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5825:
#0: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xde/0x2c0 net/rfkill/core.c:1145
3 locks held by kworker/1:4/5875:
#0: ffff88801b078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000327fd80 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x1b/0x160 net/rfkill/core.c:182
4 locks held by udevd/13444:
#0: ffff888033b59790 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
#1: ffff888058311488 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2: ffff888063dd00f8 (kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: uevent_show+0x188/0x3b0 drivers/base/core.c:2736
4 locks held by kworker/1:2/13620:
#0: ffff88801b078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900043e7d80 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x1b/0x40 net/rfkill/core.c:1055
#3: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x2d/0x2e0 net/nfc/core.c:143
2 locks held by syz.0.2243/15039:
#0: ffff888032a150a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
1 lock held by syz.4.2248/15048:
#0: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#0: ffff88807e87c100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x60/0x330 net/nfc/core.c:1165
2 locks held by syz-executor/15245:
#0: ffff88807d8f7918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff88807d8f7918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff88807d8f7918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
2 locks held by syz-executor/15252:
#0: ffff888062f18118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff888062f18118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff888062f18118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
2 locks held by syz-executor/15979:
#0: ffff888062d2c918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff888062d2c918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff888062d2c918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
2 locks held by syz-executor/15990:
#0: ffff8880789c6118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff8880789c6118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff8880789c6118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
2 locks held by syz-executor/16643:
#0: ffff888065445918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff888065445918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff888065445918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
2 locks held by syz-executor/16660:
#0: ffff88802b625118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:469 [inline]
#0: ffff88802b625118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:527 [inline]
#0: ffff88802b625118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2b7/0x470 drivers/bluetooth/hci_vhci.c:607
#1: ffffffff90370c48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1071
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6267 Comm: kworker/u8:10 Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__insn_get_emulate_prefix arch/x86/lib/insn.c:91 [inline]
RIP: 0010:insn_get_emulate_prefix arch/x86/lib/insn.c:106 [inline]
RIP: 0010:insn_get_prefixes+0x11f/0x12f0 arch/x86/lib/insn.c:134
Code: 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 42 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 8e 10 00 00 48 8d bd 20 8e cd 8c 41 0f b6 1c 24 <48> 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 3a 38 ca 7f 08
RSP: 0018:ffffc900035df7e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 000000000000000f RCX: ffffffff8b17a4ad
RDX: 0000000000000006 RSI: ffffffff8b17a435 RDI: ffffffff8ccd8e20
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000005
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81e4c0c6
R13: ffffffff81e4c0c6 R14: ffffffff81e4c0c7 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f150bb09178 CR3: 000000000df7c000 CR4: 00000000003526f0
DR0: fffffffffffffffc DR1: 0000000000000000 DR2: 0000000000000002
DR3: 0000000000000800 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
insn_get_opcode+0x80/0xed0 arch/x86/lib/insn.c:282
insn_get_modrm+0x84/0x720 arch/x86/lib/insn.c:369
insn_get_sib arch/x86/lib/insn.c:443 [inline]
insn_get_displacement+0x322/0x980 arch/x86/lib/insn.c:484
insn_get_immediate+0x84/0x1dd0 arch/x86/lib/insn.c:650
insn_get_length arch/x86/lib/insn.c:723 [inline]
insn_decode+0x21d/0x320 arch/x86/lib/insn.c:762
arch_jump_entry_size+0xb3/0x150 arch/x86/kernel/jump_label.c:24
__jump_label_patch+0x85/0x400 arch/x86/kernel/jump_label.c:45
arch_jump_label_transform_queue+0x7e/0x120 arch/x86/kernel/jump_label.c:137
__jump_label_update+0x125/0x420 kernel/jump_label.c:513
jump_label_update+0x1d7/0x400 kernel/jump_label.c:920
static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
toggle_allocation_gate mm/kfence/core.c:849 [inline]
toggle_allocation_gate+0xfc/0x260 mm/kfence/core.c:841
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244