INFO: task jbd2/sda1-8:2818 blocked in I/O wait for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D
stack:26088 pid:2818 tgid:2818 ppid:2 task_flags:0x240040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1138/0x47e0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7283
io_schedule+0x8a/0xf0 kernel/sched/core.c:8110
bit_wait_io+0xd/0xe0 kernel/sched/wait_bit.c:250
__wait_on_bit+0x65/0x180 kernel/sched/wait_bit.c:52
out_of_line_wait_on_bit+0xdc/0x110 kernel/sched/wait_bit.c:67
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
__wait_on_buffer+0x64/0x70 fs/buffer.c:123
wait_on_buffer include/linux/buffer_head.h:420 [inline]
journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline]
jbd2_journal_commit_transaction+0x494c/0x6870 fs/jbd2/commit.c:910
kjournald2+0x200/0x760 fs/jbd2/journal.c:201
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
INFO: task syz.3.3119:17919 blocked for more than 171 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3119 state:D
stack:26872 pid:17919 tgid:17918 ppid:2973 task_flags:0x40044c flags:0x00080003
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1138/0x47e0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7283
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
rwsem_down_write_slowpath+0x4c2/0x12c0 kernel/locking/rwsem.c:1215
__down_write_common kernel/locking/rwsem.c:1347 [inline]
__down_write kernel/locking/rwsem.c:1356 [inline]
down_write+0x1c7/0x1f0 kernel/locking/rwsem.c:1626
kernfs_remove_by_name_ns+0x51/0x120 fs/kernfs/dir.c:1793
sysfs_remove_file include/linux/sysfs.h:780 [inline]
driver_remove_file drivers/base/driver.c:201 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:197
remove_bind_files drivers/base/bus.c:683 [inline]
bus_remove_driver+0x248/0x2e0 drivers/base/bus.c:821
driver_unregister+0x76/0xb0 drivers/base/driver.c:277
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1757
raw_release+0x19b/0x260 drivers/usb/gadget/legacy/raw_gadget.c:463
__fput+0x3ff/0xb50 fs/file_table.c:510
task_work_run+0x150/0x240 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x8d2/0x2a60 kernel/exit.c:975
do_group_exit+0xd5/0x2a0 kernel/exit.c:1117
get_signal+0x1ec7/0x21e0 kernel/signal.c:3037
arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop+0x83/0x480 kernel/entry/common.c:98
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
do_syscall_64+0x682/0x7f0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f775eeacaeb
RSP: 002b:00007f775d904f00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f775eeacaeb
RDX: 00007f775d905fd0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007f775d905fd0 R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 0000000000000003 R15: 00007f775ef611e0
INFO: task syz.2.3122:17927 blocked for more than 172 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.3122 state:D stack:29336 pid:17927 tgid:17926 ppid:14874 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1138/0x47e0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7283
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
rwsem_down_write_slowpath+0x4c2/0x12c0 kernel/locking/rwsem.c:1215
__down_write_common kernel/locking/rwsem.c:1347 [inline]
__down_write kernel/locking/rwsem.c:1356 [inline]
down_write+0x1c7/0x1f0 kernel/locking/rwsem.c:1626
kernfs_add_one+0x38/0x850 fs/kernfs/dir.c:826
kernfs_create_dir_ns+0xfc/0x1a0 fs/kernfs/dir.c:1131
sysfs_create_dir_ns+0x13a/0x2b0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x2c8/0x930 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_init_and_add+0x121/0x180 lib/kobject.c:457
bus_add_driver+0x186/0x5b0 drivers/base/bus.c:749
driver_register+0x1e2/0x360 drivers/base/driver.c:249
usb_gadget_register_driver_owner+0x132/0x210 drivers/usb/gadget/udc/core.c:1725
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:596 [inline]
raw_ioctl+0x1a85/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1307
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x10b/0x7f0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd98680caeb
RSP: 002b:00007fd98525cf00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd98680caeb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 00007fd98525dfd0 R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000200000000000 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
6 locks held by kworker/1:0/23:
#0: ffff888105ebc140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3277
#1: ffffc9000018fd18 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3278
#2: ffff88810c38a1d8
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:1040 [inline]
, at: hub_event+0x1bd/0x4af0 drivers/usb/core/hub.c:5899
#3: ffff8881219071d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
#3: ffff8881219071d8 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0x10a/0x9a0 drivers/usb/core/hub.c:2336
#4:
ffff888100e87aa0
(&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove fs/kernfs/dir.c:1623 [inline]
(&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove+0x3b/0x70 fs/kernfs/dir.c:1614
#5: ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_remove fs/kernfs/dir.c:1624 [inline]
#5: ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_remove+0x43/0x70 fs/kernfs/dir.c:1614
1 lock held by khungtaskd/30:
#0:
ffffffff896de8e0
(
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x3d/0x184 kernel/locking/lockdep.c:6775
2 locks held by getty/2918:
#0:
ffff8881132ad0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000452e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x419/0x14f0 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/2973:
#0:
ffff888100e87980
(&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0x40d/0x7e0 fs/kernfs/dir.c:1200
2 locks held by kworker/1:3/5218:
5 locks held by kworker/0:3/5224:
9 locks held by kworker/0:6/5384:
#0: ffff888105ebc140
(
(wq_completion)usb_hub_wq
){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3277
#1: ffffc90003e2fd18 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3278
#2: ffff88810c7ca1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
#2: ffff88810c7ca1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x1bd/0x4af0 drivers/usb/core/hub.c:5899
#3:
ffff8881330bb1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
ffff8881330bb1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x7e/0x4d0 drivers/base/dd.c:1076
#4:
ffff8881330ba1a0
(&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
(&dev->mutex){....}-{4:4}, at: __device_attach+0x7e/0x4d0 drivers/base/dd.c:1076
#5:
ffff8881122a9a58
(
&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
&dev->mutex){....}-{4:4}, at: __device_attach+0x7e/0x4d0 drivers/base/dd.c:1076
#6: ffffffff8a8ad268 (minors_rwsem){++++}-{4:4}, at: hidraw_connect+0x75/0x440 drivers/hid/hidraw.c:612
#7:
ffffffff89e75de0
(gdp_mutex){+.+.}-{4:4}, at: get_device_parent+0xff/0x4c0 drivers/base/core.c:3268
#8:
ffff888100e87980
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_activate fs/kernfs/dir.c:1463 [inline]
, at: kernfs_add_one+0x54f/0x850 fs/kernfs/dir.c:869
8 locks held by kworker/1:6/5925:
4 locks held by udevd/10193:
#0:
ffff888114dc8518 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xe1/0x1270 fs/seq_file.c:183
#1: ffff88811d70bc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_seq_start+0x4f/0x2a0 fs/kernfs/file.c:172
#2:
ffff8881268ba878 (kn->active#23){++++}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
ffff8881268ba878 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0xbc/0x2a0 fs/kernfs/file.c:173
#3: ffff88812131b1d8 (&dev->mutex){....}-{4:4}, at: device_lock_interruptible include/linux/device.h:1045 [inline]
#3: ffff88812131b1d8 (&dev->mutex){....}-{4:4}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
3 locks held by kworker/1:2/12336:
7 locks held by kworker/1:8/13226:
#0:
ffff888105ebc140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3277
#1:
ffffc900018dfd18
(
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3278
#2: ffff88810c7221d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
#2: ffff88810c7221d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x1bd/0x4af0 drivers/usb/core/hub.c:5899
#3:
ffff88812131b1d8
(
&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
&dev->mutex){....}-{4:4}, at: __device_attach+0x7e/0x4d0 drivers/base/dd.c:1076
#4:
ffff888119f8e1a0
(&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
(&dev->mutex){....}-{4:4}, at: __device_attach+0x7e/0x4d0 drivers/base/dd.c:1076
#5: ffffffff8a5192a0 (input_mutex){+.+.}-{4:4}
, at: class_mutex_intr_constructor include/linux/mutex.h:255 [inline]
, at: input_register_device.cold+0x5b/0x375 drivers/input/input.c:2391
#6: ffff888100e87980
(
&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_add_one+0x38/0x850 fs/kernfs/dir.c:826
1 lock held by syz-executor/14874:
#0: ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0x40d/0x7e0 fs/kernfs/dir.c:1200
1 lock held by syz-executor/15628:
#0:
ffff888100e87980
(
&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0x40d/0x7e0 fs/kernfs/dir.c:1200
1 lock held by syz-executor/16304:
#0:
ffff888100e87980
(
&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0x40d/0x7e0 fs/kernfs/dir.c:1200
1 lock held by syz-executor/16994:
#0: ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0x40d/0x7e0 fs/kernfs/dir.c:1200
2 locks held by kworker/1:1/17701:
2 locks held by syz.1.3116/17911:
1 lock held by syz.4.3118/17916:
2 locks held by syz.3.3119/17919:
#0:
ffff888100e87aa0 (&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x49/0x120 fs/kernfs/dir.c:1792
#1: ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x51/0x120 fs/kernfs/dir.c:1793
1 lock held by syz.2.3122/17927:
#0:
ffff888100e87980
(
&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_add_one+0x38/0x850 fs/kernfs/dir.c:826
1 lock held by syz-executor/17928:
#0:
ffff888100e87980
(
&root->kernfs_rwsem
){++++}-{4:4}, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
1 lock held by syz-executor/17929:
#0:
ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
1 lock held by syz-executor/17930:
#0:
ffff888100e87980
(&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
1 lock held by syz-executor/17931:
#0:
ffff888100e87980 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
1 lock held by syz-executor/17932:
#0:
ffff888100e87980
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
nmi_cpu_backtrace.cold+0x12d/0x151 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x1d7/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x141/0x190 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xcb1/0x1030 kernel/hung_task.c:561
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
yealink 3-1:36.0: urb_irq_callback - urb status -71
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5925 Comm: kworker/1:6 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events_power_efficient gc_worker
RIP: 0010:memchr+0x19/0x80 lib/string.c:809
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 01 fa 48 bd 00 00 00 00 00 fc ff df 53 48 83 ec 18 eb 26 <48> 89 f8 48 89 f9 48 8d 5f 01 48 c1 e8 03 83 e1 07 0f b6 04 28 38
RSP: 0018:ffffc900001a82f0 EFLAGS: 00000097
RAX: 0000000000000000 RBX: 0000000000000017 RCX: 0000000000000017
RDX: ffffffff9401c66e RSI: 000000000000000a RDI: ffffffff9401c620
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 000000007fffffff R11: 0000000000613354 R12: ffffffff9401c620
R13: 0000000000000000 R14: ffffc900001a8488 R15: ffffc900001a84c8
FS: 0000000000000000(0000) GS:ffff8882687a5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb63fff CR3: 0000000124d7a000 CR4: 00000000003506f0
Call Trace:
memchr include/linux/fortify-string.h:737 [inline]
record_print_text+0x239/0x3c0 kernel/printk/printk.c:1443
printk_get_next_message+0x2d1/0x6c0 kernel/printk/printk.c:3072
console_emit_next_record kernel/printk/printk.c:3137 [inline]
console_flush_one_record+0x67c/0xe50 kernel/printk/printk.c:3269
console_flush_all kernel/printk/printk.c:3343 [inline]
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0x103/0x260 kernel/printk/printk.c:3413
vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479
dev_vprintk_emit+0x394/0x3e0 drivers/base/core.c:4930
dev_printk_emit+0xd2/0x10d drivers/base/core.c:4941
__dev_printk+0xcb/0x100 drivers/base/core.c:4953
_dev_err+0xef/0x127 drivers/base/core.c:4996
urb_irq_callback.cold+0x41/0xfd drivers/input/misc/yealink.c:418
__usb_hcd_giveback_urb+0x38d/0x610 drivers/usb/core/hcd.c:1659
usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1743
dummy_timer+0xda1/0x36c0 drivers/usb/gadget/udc/dummy_hcd.c:2005
__run_hrtimer kernel/time/hrtimer.c:1930 [inline]
__hrtimer_run_queues+0x470/0xa00 kernel/time/hrtimer.c:1994
hrtimer_run_softirq+0x17d/0x2c0 kernel/time/hrtimer.c:2011
handle_softirqs+0x1dd/0x9e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x160/0x210 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 66 93 58 00 48 89 df 5b e9 dd ea 5c 00 be 03 00 00 00 5b e9 d2 3b 1d 01 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 e5 e1 44 0b 48 8b 34 24 65 48 8b 15 c1 e1 44
RSP: 0018:ffffc900073efb48 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff867cd03a
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888105e98000
RBP: 000000000000dc35 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000040000 R14: 0000000000006e1a R15: 0000000000001770
rcu_read_unlock include/linux/rcupdate.h:867 [inline]
gc_worker+0xf49/0x1630 net/netfilter/nf_conntrack_core.c:1614
process_one_work+0xa0e/0x1980 kernel/workqueue.c:3302
process_scheduled_works kernel/workqueue.c:3385 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3466
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245