INFO: task kworker/1:15:14681 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:15 state:D stack:22392 pid:14681 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:26:15013 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:26 state:D stack:25144 pid:15013 ppid:2 flags:0x00004000
Workqueue: nfc2_nci_rx_wq nci_rx_work
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
device_lock include/linux/device.h:831 [inline]
nfc_targets_found+0xe8/0x3e0 net/nfc/core.c:778
nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:390 [inline]
nci_ntf_packet+0x1384/0x28b0 net/nfc/nci/ntf.c:798
nci_rx_work+0x5b/0x300 net/nfc/nci/core.c:1517
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:2:22753 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:25368 pid:22753 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
nci_request net/nfc/nci/core.c:149 [inline]
nci_stop_poll+0xf8/0x1a0 net/nfc/nci/core.c:873
nfc_stop_poll+0x10e/0x270 net/nfc/core.c:259
nfc_urelease_event_work+0x1a8/0x2d0 net/nfc/netlink.c:1838
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:38:25607 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:38 state:D stack:23120 pid:25607 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.0:4867 blocked for more than 144 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27920 pid:4867 ppid:5098 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
__flush_workqueue+0x3f5/0x13a0 kernel/workqueue.c:2861
nci_close_device+0x142/0x370 net/nfc/nci/core.c:579
nci_unregister_device+0x38/0x310 net/nfc/nci/core.c:1292
virtual_ncidev_close+0x52/0xb0 drivers/nfc/virtual_ncidev.c:163
__fput+0x27c/0xa90 fs/file_table.c:320
task_work_run+0x16f/0x270 kernel/task_work.c:179
get_signal+0x1c7/0x2450 kernel/signal.c:2635
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd6ba28c0c9
RSP: 002b:00007fd6b8ddd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007fd6ba3ac050 RCX: 00007fd6ba28c0c9
RDX: 0000000000000064 RSI: 0000000020000840 RDI: 0000000000000003
RBP: 00007fd6ba2e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe03ba1f2f R14: 00007fd6b8ddd300 R15: 0000000000022000
INFO: task syz-executor.5:4907 blocked for more than 144 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28448 pid:4907 ppid:5107 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
misc_open+0x63/0x4a0 drivers/char/misc.c:129
chrdev_open+0x26a/0x770 fs/char_dev.c:414
do_dentry_open+0x6cc/0x13f0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bbc/0x2a50 fs/namei.c:3714
do_filp_open+0x1ba/0x410 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb2f4e8c0c9
RSP: 002b:00007fb2f5b3d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fb2f4fabf80 RCX: 00007fb2f4e8c0c9
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fb2f4ee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd87f8783f R14: 00007fb2f5b3d300 R15: 0000000000022000
INFO: task syz-executor.2:4903 blocked for more than 144 seconds.
Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27576 pid:4903 ppid:17368 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
nfc_register_device+0x32/0x3b0 net/nfc/core.c:1116
nci_register_device+0x7cb/0xb50 net/nfc/nci/core.c:1257
virtual_ncidev_open+0x14f/0x230 drivers/nfc/virtual_ncidev.c:148
misc_open+0x37a/0x4a0 drivers/char/misc.c:165
chrdev_open+0x26a/0x770 fs/char_dev.c:414
do_dentry_open+0x6cc/0x13f0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bbc/0x2a50 fs/namei.c:3714
do_filp_open+0x1ba/0x410 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2b97e8c0c9
RSP: 002b:00007f2b98b74168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2b97fabf80 RCX: 00007f2b97e8c0c9
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f2b97ee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf0a21fdf R14: 00007f2b98b74300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c790f30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c790c30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4745:
#0: ffff88814a5b1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/1:15/14681:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90003dbfda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
3 locks held by kworker/u4:18/14998:
3 locks held by kworker/u4:26/15013:
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888036bd0138 ((wq_completion)nfc2_nci_rx_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90009e2fda8 ((work_completion)(&ndev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88801eb4d100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#2: ffff88801eb4d100 (&dev->mutex){....}-{3:3}, at: nfc_targets_found+0xe8/0x3e0 net/nfc/core.c:778
2 locks held by kworker/0:2/22329:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000e54fda8 ((work_completion)(&dev->recv_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
6 locks held by kworker/1:2/22753:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90003e9fda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
#3: ffff88801eb4d508 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x143/0x2d0 net/nfc/netlink.c:1835
#4: ffff88801eb4d100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#4: ffff88801eb4d100 (&dev->mutex){....}-{3:3}, at: nfc_stop_poll+0x2d/0x270 net/nfc/core.c:247
#5: ffff88801eb49350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_request net/nfc/nci/core.c:149 [inline]
#5: ffff88801eb49350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_stop_poll+0xf8/0x1a0 net/nfc/nci/core.c:873
3 locks held by kworker/1:38/25607:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000a857da8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
5 locks held by kworker/u4:10/26156:
3 locks held by kworker/0:3/27205:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9001431fda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
3 locks held by kworker/1:6/1178:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc900145afda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
3 locks held by kworker/0:22/3677:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90014e9fda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
3 locks held by kworker/0:23/3678:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90014eafda8 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x96/0x2d0 net/nfc/netlink.c:1829
1 lock held by syz-executor.0/4867:
#0: ffff88801eb49350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_close_device+0x6d/0x370 net/nfc/nci/core.c:561
1 lock held by syz-executor.5/4907:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
2 locks held by syz-executor.2/4903:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
#1: ffffffff8e541508 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_register_device+0x32/0x3b0 net/nfc/core.c:1116
1 lock held by syz-executor.0/4946:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.1/4948:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/4954:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.2/4956:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.0/4958:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/4960:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
1 lock held by syz-executor.2/4962:
#0: ffffffff8d243c08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x63/0x4a0 drivers/char/misc.c:129
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00009-g5a41237ad1d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1fd/0x2a0 drivers/acpi/processor_idle.c:570