INFO: task kworker/1:2:728 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2     state:D
 stack:20928 pid:728   tgid:728   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xca6/0x3170 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
 rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
 __down_write_common+0x950/0x13f0 kernel/locking/rwsem.c:1306
 kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
 driver_sysfs_remove drivers/base/dd.c:474 [inline]
 really_probe+0x373/0xa90 drivers/base/dd.c:715
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:798
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:828
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:956
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1028
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
 device_add+0x114b/0x1a70 drivers/base/core.c:3721
 usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
 call_driver_probe drivers/base/dd.c:578 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:656
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:798
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:828
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:956
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1028
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
 device_add+0x114b/0x1a70 drivers/base/core.c:3721
 usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
 hub_port_connect drivers/usb/core/hub.c:5521 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2e66/0x4f50 drivers/usb/core/hub.c:5903
 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 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
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/0:0/8:
 #0: 
ffff888104afcd48
 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206
 #1: ffffc9000008fd80
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207
 #2: 
ffff8881097b5190
 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849
 #3: 
ffff8881138d5190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
 #4: 
ffff8881159bd160
 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
3 locks held by kworker/0:1/9:
1 lock held by kworker/R-mm_pe/12:
1 lock held by khungtaskd/30:
 #0: 
ffffffff886b4620
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
10 locks held by kworker/0:2/49:
 #0: 
ffff888104afcd48
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206
 #1: 
ffffc90000347d80
 ((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207
 #2: ffff8881097bf190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849
 #3: 
ffff8881138d4190
 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
 #4: 
ffff8881159bc160
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
 #5: 
ffffffff892e8dc8
 (
input_mutex
){+.+.}-{3:3}
, at: input_register_device+0xa2b/0x1140 drivers/input/input.c:2463
 #6: 
ffff888100aae948
 (&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
 #7: 
ffff8881f643d898
 (
&rq->__lock
){-.-.}-{2:2}
, at: raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline]
, at: raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
, at: rq_lock kernel/sched/sched.h:1702 [inline]
, at: __schedule+0x28e/0x3170 kernel/sched/core.c:6653
 #8: 
ffffffff8d624af8
 (
&obj_hash[i].lock
){-.-.}-{2:2}
, at: debug_object_activate+0x199/0x540 lib/debugobjects.c:708
 #9: 
ffffffff885c1b98
 (console_owner_lock
){-.-.}-{2:2}
, at: console_lock_spinning_disable_and_check kernel/printk/printk.c:1909 [inline]
, at: console_emit_next_record kernel/printk/printk.c:2934 [inline]
, at: console_flush_all+0x5bf/0xd70 kernel/printk/printk.c:2994
4 locks held by kworker/1:2/728:
2 locks held by kworker/u8:6/1029:
 #0: 
ffff888100089148
 ((wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206
 #1: 
ffffc90001f2fd80
 (
(work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207
4 locks held by syslogd/2382:
2 locks held by getty/2458:
 #0: ffff8881139090a0
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: 
ffffc900000432f0
 (&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.4/2522:
1 lock held by syz-executor.2/2523:
1 lock held by syz-executor.0/2524:
1 lock held by syz-executor.3/2525:
1 lock held by syz-executor.1/2530:
5 locks held by kworker/0:3/4786:
4 locks held by udevd/4813:
 #0: 
ffff88811a734418
 (
&p->lock
){+.+.}-{3:3}
, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
 #1: 
ffff88810578d488
 (&of->mutex
#2
){+.+.}-{3:3}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
 #2: ffff8881130a90f8
 (
kn->active
#22
){.+.+}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
 #3: 
ffff8881138d2190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:1014 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by udevd/4899:
 #0: 
ffff888117c1c8b8
 (
&p->lock
){+.+.}-{3:3}
, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
 #1: 
ffff888114db5488
 (&of->mutex
#2
){+.+.}-{3:3}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
 #2: ffff888112ba30f8
 (
kn->active
#22
){.+.+}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
 #3: 
ffff8881138d4190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:1014 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by udevd/4908:
 #0: 
ffff88811a734e80
 (
&p->lock
){+.+.}-{3:3}
, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
 #1: 
ffff888107ffb888
 (&of->mutex
#2
){+.+.}-{3:3}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
 #2: ffff88810d3900f8
 (
kn->active
#22
){.+.+}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
 #3: ffff8881138d5190
 (&dev->mutex
){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:1014 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
1 lock held by udevd/4929:
 #0: 
ffff888100aae948
 (
&root->kernfs_rwsem
){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by modprobe/4945:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
yealink 4-1:36.0: urb_irq_callback - urb status -71
NMI backtrace for cpu 0
CPU: 0 PID: 2524 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 51 03 0b ff eb a0 e8 da 03 0b
RSP: 0018:ffffc900000075a0 EFLAGS: 00000002
RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff829a99d5 RDI: ffffffff8d71fc60
RBP: ffffffff8d71fc20 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000006 R12: 0000000000000000
R13: 000000000000005b R14: ffffffff829a9970 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555e28b61008 CR3: 000000011c4da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 serial_out drivers/tty/serial/8250/8250.h:122 [inline]
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline]
 serial8250_console_write+0xce7/0x1090 drivers/tty/serial/8250/8250_port.c:3393
 console_emit_next_record kernel/printk/printk.c:2928 [inline]
 console_flush_all+0x53c/0xd70 kernel/printk/printk.c:2994
 console_unlock+0xae/0x290 kernel/printk/printk.c:3063
 vprintk_emit kernel/printk/printk.c:2345 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2300
 dev_vprintk_emit drivers/base/core.c:4951 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4962
 __dev_printk+0xf5/0x270 drivers/base/core.c:4974
 _dev_err+0xe5/0x120 drivers/base/core.c:5017
 urb_irq_callback+0x454/0x700 drivers/input/misc/yealink.c:416
 __usb_hcd_giveback_urb+0x364/0x5c0 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1732
 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
 __run_hrtimer kernel/time/hrtimer.c:1687 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x8b/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x103/0x1a0 mm/kasan/generic.c:189
Code: 39 d1 75 0a 45 3a 11 b8 01 00 00 00 7c 0b 44 89 c2 e8 01 eb ff ff 83 f0 01 5b 5d 41 5c c3 cc cc cc cc 48 85 d2 74 4f 48 01 ea <eb> 09 48 83 c0 01 48 39 d0 74 41 80 38 00 74 f2 eb b2 41 bc 08 00
RSP: 0018:ffffc900015174a8 EFLAGS: 00000286
RAX: fffffbfff137bcf2 RBX: fffffbfff137bcf3 RCX: ffffffff8131760b
RDX: fffffbfff137bcf3 RSI: 0000000000000008 RDI: ffffffff89bde790
RBP: fffffbfff137bcf2 R08: 0000000000000000 R09: fffffbfff137bcf2
R10: ffffffff89bde797 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff886b4620 R15: 0000000000000000
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:571 [inline]
 cpu_online include/linux/cpumask.h:1181 [inline]
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0xbb/0x560 kernel/locking/lockdep.c:5725
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 page_ext_get+0x3a/0x310 mm/page_ext.c:521
 page_table_check_clear.part.0+0x32/0x540 mm/page_table_check.c:74
 page_table_check_clear mm/page_table_check.c:70 [inline]
 __page_table_check_pte_clear+0x31c/0x570 mm/page_table_check.c:160
 page_table_check_pte_clear include/linux/page_table_check.h:49 [inline]
 ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1279 [inline]
 get_and_clear_full_ptes include/linux/pgtable.h:678 [inline]
 zap_present_folio_ptes mm/memory.c:1481 [inline]
 zap_present_ptes mm/memory.c:1570 [inline]
 zap_pte_range mm/memory.c:1612 [inline]
 zap_pmd_range mm/memory.c:1730 [inline]
 zap_pud_range mm/memory.c:1759 [inline]
 zap_p4d_range mm/memory.c:1780 [inline]
 unmap_page_range+0x1e04/0x35a0 mm/memory.c:1801
 unmap_single_vma+0x194/0x2b0 mm/memory.c:1847
 unmap_vmas+0x22f/0x490 mm/memory.c:1891
 exit_mmap+0x1b8/0xb20 mm/mmap.c:3341
 __mmput kernel/fork.c:1346 [inline]
 mmput+0xdb/0x420 kernel/fork.c:1368
 exit_mm kernel/exit.c:565 [inline]
 do_exit+0x9b7/0x2b20 kernel/exit.c:861
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1023
 get_signal+0x2618/0x2710 kernel/signal.c:2909
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
 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+0x141/0x250 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fad9dc4a901
Code: Unable to access opcode bytes at 0x7fad9dc4a8d7.
RSP: 002b:00007fff94570450 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: fffffffffffffffe RBX: 0000000000000010 RCX: 00007fad9dc4a901
RDX: 0000000000090800 RSI: 00007fad9dca76da RDI: 00000000ffffff9c
RBP: 00007fff9457050c R08: 000000000000421a R09: 00007fad9dd58080
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000000000001733b R14: 0000000000017030 R15: 0000000000000005
 </TASK>