INFO: task kworker/0:3:5079 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:22976 pid:5079 tgid:5079 ppid:2 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__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+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
INFO: task syz-executor.3:7465 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:23888 pid:7465 tgid:7465 ppid:1 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rfkill_fop_open+0x13b/0x750 net/rfkill/core.c:1182
misc_open+0x3da/0x4c0 drivers/char/misc.c:165
chrdev_open+0x26d/0x6f0 fs/char_dev.c:414
do_dentry_open+0x8da/0x18c0 fs/open.c:955
do_open fs/namei.c:3642 [inline]
path_openat+0x1dfb/0x2990 fs/namei.c:3799
do_filp_open+0x1dc/0x430 fs/namei.c:3826
do_sys_openat2+0x17a/0x1e0 fs/open.c:1406
do_sys_open fs/open.c:1421 [inline]
__do_sys_openat fs/open.c:1437 [inline]
__se_sys_openat fs/open.c:1432 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1432
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f2337c7ca60
RSP: 002b:00007ffc476c7b50 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f2337c7ca60
RDX: 0000000000000002 RSI: 00007f2337cc97ae RDI: 00000000ffffff9c
RBP: 00007f2337cc97ae R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffc476c8308
R13: 0000000000000003 R14: 00007f2337dac9d8 R15: 000000000000000c
INFO: task syz-executor.2:7472 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26480 pid:7472 tgid:7471 ppid:5073 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__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:168
__fput+0x270/0xb80 fs/file_table.c:422
task_work_run+0x14e/0x250 kernel/task_work.c:180
get_signal+0x105e/0x2760 kernel/signal.c:2683
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:212
do_syscall_64+0xe2/0x260 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fe1a7e7de69
RSP: 002b:00007fe1a8bcb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007fe1a7fabf80 RCX: 00007fe1a7e7de69
RDX: 0000000000000064 RSI: 0000000020000840 RDI: 0000000000000003
RBP: 00007fe1a7eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe1a7fabf80 R15: 00007ffcd9f92fd8
INFO: task syz-executor.0:7484 blocked for more than 144 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24720 pid:7484 tgid:7483 ppid:5074 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:990 [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+0x298/0x1100 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+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6d9847de69
RSP: 002b:00007f6d9919c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6d985abf80 RCX: 00007f6d9847de69
RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f6d984ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6d985abf80 R15: 00007ffe96f597c8
Showing all locks held in the system:
2 locks held by kworker/u8:0/10:
#0: ffff888015081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x1296/0x1a60 kernel/workqueue.c:3229
#1: ffffc900000f7d80 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1a60 kernel/workqueue.c:3230
2 locks held by kworker/u8:1/11:
#0: ffff888015081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x1296/0x1a60 kernel/workqueue.c:3229
#1: ffffc90000107d80 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1a60 kernel/workqueue.c:3230
1 lock held by khungtaskd/29:
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4813:
#0: ffff88802ac2a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015e02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/0:3/5079:
#0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1296/0x1a60 kernel/workqueue.c:3229
#1: ffffc900035afd80 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1a60 kernel/workqueue.c:3230
#2: ffffffff8f775ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x1b/0x160 net/rfkill/core.c:182
2 locks held by syz-executor.3/7465:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
#1: ffffffff8f775ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x13b/0x750 net/rfkill/core.c:1182
2 locks held by syz-executor.2/7472:
#0: ffff888063e7a100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#0: ffff888063e7a100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x60/0x330 net/nfc/core.c:1165
#1: ffffffff8f775ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xde/0x2c0 net/rfkill/core.c:1149
2 locks held by syz-executor.0/7484:
#0: ffffffff8f775ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x16e/0x570 net/rfkill/core.c:1297
#1: ffff888063e7a100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#1: ffff888063e7a100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x2d/0x2e0 net/nfc/core.c:143
1 lock held by syz-executor.1/7649:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.4/7656:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.2/7660:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.0/7661:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.1/7663:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.4/7665:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.3/7667:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.0/7670:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.2/7671:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.1/7677:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.4/7679:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.3/7681:
#0: ffffffff8e3afb68 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf86/0x1210 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 34 Comm: kworker/u8:2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__text_poke+0xe2/0xcb0 arch/x86/kernel/alternative.c:1875
Code: 0f 85 e1 0a 00 00 8b 1d 3c b9 6b 11 31 ff 89 de e8 83 54 5b 00 85 db 0f 84 f2 09 00 00 e8 96 59 5b 00 48 89 ef e8 ee f3 27 00 <31> ff 89 c3 89 c6 e8 63 54 5b 00 85 db 0f 84 9f 05 00 00 e8 76 59
RSP: 0018:ffffc90000aa7988 EFLAGS: 00000286
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff81319f0d
RDX: ffff8880192e0000 RSI: ffffffff81319f1a RDI: ffffffff81dd5155
RBP: ffffffff81dd5155 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000006 R12: 0000000000000156
R13: 0000000000000009 R14: 0000000000000007 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f27a823c750 CR3: 000000000d57a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
text_poke_bp_batch+0x1cd/0x760 arch/x86/kernel/alternative.c:2293
text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2484 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2494
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1d7/0x400 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x154/0x1c0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate mm/kfence/core.c:831 [inline]
toggle_allocation_gate+0x143/0x250 mm/kfence/core.c:818
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243