INFO: task kworker/1:6:5141 blocked for more than 143 seconds.
Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:22864 pid:5141 tgid:5141 ppid:2 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__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+0x9c5/0x1b40 kernel/workqueue.c:3248
process_scheduled_works kernel/workqueue.c:3329 [inline]
worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409
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.3.1138:9432 blocked for more than 147 seconds.
Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1138 state:D stack:24544 pid:9432 tgid:9432 ppid:5523 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__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:1149
nfc_unregister_device+0x94/0x330 net/nfc/core.c:1167
virtual_ncidev_close+0x51/0xb0 drivers/nfc/virtual_ncidev.c:172
__fput+0x408/0xbb0 fs/file_table.c:422
task_work_run+0x14e/0x250 kernel/task_work.c:180
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+0x278/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fda5f975b99
RSP: 002b:00007fff6336d938 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fda5fb05aa0 RCX: 00007fda5f975b99
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fda5fb05aa0 R08: 0000000000000006 R09: 000000196336dc4f
R10: 00000000003fa1e4 R11: 0000000000000246 R12: 0000000000081ed7
R13: 0000000000000032 R14: 00007fda5fb05aa0 R15: 00007fda5fb04150
INFO: task syz.2.1143:9466 blocked for more than 148 seconds.
Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.1143 state:D stack:25568 pid:9466 tgid:9455 ppid:6063 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:1009 [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_fop_write+0x2d4/0x570 net/rfkill/core.c:1305
vfs_write+0x29a/0x1140 fs/read_write.c:588
ksys_write+0x1f8/0x260 fs/read_write.c:643
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: 0033:0x7f600b375b99
RSP: 002b:00007f600c155048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f600b504150 RCX: 00007f600b375b99
RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 00007f600b3f677e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f600b504150 R15: 00007fff8709ce58
INFO: task syz-executor:9555 blocked for more than 148 seconds.
Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:28288 pid:9555 tgid:9555 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__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:1075
hci_register_dev+0x3cc/0xc60 net/bluetooth/hci_core.c:2683
__vhci_create_device+0x357/0x7e0 drivers/bluetooth/hci_vhci.c:430
vhci_create_device drivers/bluetooth/hci_vhci.c:472 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
vhci_write+0x2c7/0x470 drivers/bluetooth/hci_vhci.c:609
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0x6b6/0x1140 fs/read_write.c:590
ksys_write+0x12f/0x260 fs/read_write.c:643
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: 0033:0x7f29c39746e0
RSP: 002b:00007ffde735df58 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f29c39746e0
RDX: 0000000000000002 RSI: 00007ffde735df6a RDI: 00000000000000ca
RBP: 00007f29c3b04a58 R08: 0000000000000000 R09: 00007f29c463d6c0
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4841:
#0: ffff88802fcc10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5085:
#0: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xde/0x2c0 net/rfkill/core.c:1149
3 locks held by kworker/1:6/5141:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000352fd80 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x1b/0x160 net/rfkill/core.c:182
2 locks held by syz.3.1138/9432:
#0: ffff888064e82100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#0: ffff888064e82100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x60/0x330 net/nfc/core.c:1165
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xde/0x2c0 net/rfkill/core.c:1149
2 locks held by syz.2.1143/9466:
#0: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x16e/0x570 net/rfkill/core.c:1297
#1: ffff888064e82100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#1: ffff888064e82100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x2d/0x2e0 net/nfc/core.c:143
2 locks held by syz-executor/9555:
#0: ffff888024db5118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff888024db5118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff888024db5118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/9581:
#0: ffff88807d4a4118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff88807d4a4118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff88807d4a4118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/9956:
#0: ffff888060071118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff888060071118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff888060071118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/9985:
#0: ffff88807f0ca918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff88807f0ca918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff88807f0ca918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/10011:
#0: ffff888062e7d918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff888062e7d918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff888062e7d918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/10375:
#0: ffff888062c4a918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff888062c4a918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff888062c4a918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/10410:
#0: ffff88802dc2b918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff88802dc2b918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff88802dc2b918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
2 locks held by syz-executor/10423:
#0: ffff8880231d8118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:471 [inline]
#0: ffff8880231d8118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:529 [inline]
#0: ffff8880231d8118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:609
#1: ffffffff8fbcdb48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x3a/0xb40 net/rfkill/core.c:1075
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
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+0xf86/0x1240 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 PID: 17 Comm: rcu_preempt Not tainted 6.10.0-rc5-syzkaller-00243-g6c0483dbfe72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__try_to_del_timer_sync+0x0/0x170 kernel/time/timer.c:1499
Code: 89 fb e8 d3 69 13 00 48 89 df 5b be 01 00 00 00 e9 e5 fd ff ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <41> 57 41 89 f7 41 56 49 be 00 00 00 00 00 fc ff df 41 55 41 89 f5
RSP: 0018:ffffc90000167bf8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a7e87
RDX: ffff8880176c8000 RSI: 0000000000000000 RDI: ffffc90000167c48
RBP: ffffc90000167c48 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90000167c70 R14: 1ffffffff1b01e40 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9fe6d1178 CR3: 000000007a2e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__timer_delete_sync+0xf4/0x1b0 kernel/time/timer.c:1665
timer_delete_sync kernel/time/timer.c:1720 [inline]
del_timer_sync include/linux/timer.h:185 [inline]
schedule_timeout+0x140/0x2a0 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
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