INFO: task kworker/0:2:31784 blocked for more than 143 seconds.
      Not tainted 6.5.0-rc4-syzkaller-00075-g98a9e32bdf25 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2     state:D
 stack:23616 pid:31784 ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xc79/0x30a0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
 unregister_netdev+0x12/0x30 net/core/dev.c:10923
 usbnet_disconnect+0xed/0x540 drivers/net/usb/usbnet.c:1621
 usb_unbind_interface+0x1dd/0x8d0 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:569 [inline]
 device_remove+0x11f/0x170 drivers/base/dd.c:561
 __device_release_driver drivers/base/dd.c:1270 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
 bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
 device_del+0x39a/0xa40 drivers/base/core.c:3814
 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1421
 usb_disconnect+0x2e1/0x890 drivers/usb/core/hub.c:2276
 hub_port_connect drivers/usb/core/hub.c:5284 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
 port_event drivers/usb/core/hub.c:5749 [inline]
 hub_event+0x2221/0x5330 drivers/usb/core/hub.c:5831
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff87ea74b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff87ea71b0
 (rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
 #0: ffffffff87ea80c0 (rcu_read_lock){....}-{1:2}
, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
3 locks held by dhcpcd/2412:
2 locks held by getty/2432:
 #0: ffff888102245098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900000452f0 (&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187
3 locks held by kworker/0:3/5253:
 #0: 
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
ffff888100070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc90001cffd80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}
, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: ffff888106707190
 (
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3b1/0x620 drivers/net/wireless/ath/ath9k/hif_usb.c:1296
6 locks held by kworker/1:6/5476:
3 locks held by kworker/0:7/14982:
 #0: ffff888109fb6938 (
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
(wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc900046afd80
 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: ffffffff88f955e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635
5 locks held by udevd/21418:
 #0: ffff88812165fc48
 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x99/0xb0 fs/file.c:1046
 #1: 
ffff8881023ce540
 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
 #2: ffff8881207ae088 (&of->mutex
){+.+.}-{3:3}
, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
 #3: ffff888141d0fa00 (kn->active#29){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
 #4: ffff888135e6e190
 (
&dev->mutex
){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
6 locks held by kworker/0:4/21840:
3 locks held by kworker/1:0/30653:
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
 #0: ffff888109fb6938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc9000698fd80
 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: 
ffffffff88f955e8
 (rtnl_mutex){+.+.}-{3:3}
, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635
6 locks held by kworker/0:2/31784:
 #0: 
ffff88810be54138
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc9000dd07d80 ((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: 
ffff888106787190 (
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:958 [inline]
, at: hub_event+0x1cc/0x5330 drivers/usb/core/hub.c:5777
 #3: ffff8881062cf190 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:958 [inline]
, at: usb_disconnect+0x10a/0x890 drivers/usb/core/hub.c:2267
 #4: ffff8881436ea160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
 #4: ffff8881436ea160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
 #4: ffff8881436ea160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
 #5: ffffffff88f955e8 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0x12/0x30 net/core/dev.c:10923
6 locks held by kworker/0:9/2655:
 #0: 
ffff88810be54138
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc900035cfd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: ffff888106767190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
 #2: ffff888106767190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1cc/0x5330 drivers/usb/core/hub.c:5777
 #3: ffff888106782500 (&port_dev->status_lock
){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3185 [inline]
){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5341 [inline]
){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5749 [inline]
){+.+.}-{3:3}, at: hub_event+0x2ad8/0x5330 drivers/usb/core/hub.c:5831
 #4: ffff888103f31368 (hcd->address0_mutex){+.+.}-{3:3}
, at: hub_port_connect drivers/usb/core/hub.c:5342 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
, at: port_event drivers/usb/core/hub.c:5749 [inline]
, at: hub_event+0x2afe/0x5330 drivers/usb/core/hub.c:5831
 #5: ffff8881f663b218 (&rq->__lock){-.-.}-{2:2}
, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline]
, at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline]
, at: rq_lock kernel/sched/sched.h:1675 [inline]
, at: __schedule+0x290/0x30a0 kernel/sched/core.c:6627

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

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc4-syzkaller-00075-g98a9e32bdf25 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x27b/0x2e0 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+0xf29/0x11b0 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2412 Comm: dhcpcd Not tainted 6.5.0-rc4-syzkaller-00075-g98a9e32bdf25 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:look_up_lock_class+0x54/0x120 kernel/locking/lockdep.c:934
Code: eb 83 b5 80 46 86 c8 61 48 01 dd 48 0f af c5 48 c1 e8 34 85 d2 75 0b 9c 5a 80 e6 02 0f 85 9d 00 00 00 48 8b 1c c5 40 c9 75 8b <e8> a7 02 00 00 48 85 db 75 0f eb 7b 48 8b 1b e8 98 02 00 00 48 85
RSP: 0018:ffffc90000007920 EFLAGS: 00000046
RAX: 00000000000007df RBX: ffffffff8b7b4650 RCX: 1ffff92000000f9d
RDX: 0000000000000046 RSI: 0000000000000000 RDI: ffffc90000007ce0
RBP: ffffffff8c20ef40 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc90000007ce0 R11: 00000000005ae400 R12: ffffc90000007ce0
R13: ffffc90000007ce0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007efd2754b740(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58595eb988 CR3: 000000010471e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 register_lock_class+0xbd/0x1320 kernel/locking/lockdep.c:1292
 __lock_acquire+0x13c/0x5de0 kernel/locking/lockdep.c:5021
 lock_acquire kernel/locking/lockdep.c:5761 [inline]
 lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5726
 call_timer_fn+0x12b/0x580 kernel/time/timer.c:1697
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x20b/0x94e kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xa7/0x110 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x8e/0xb0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1972 [inline]
RIP: 0010:vprintk_emit+0x3f6/0x640 kernel/printk/printk.c:2306
Code: 00 00 e8 cd d8 1b 00 9c 8f 45 d0 48 8b 45 d0 31 ff 25 00 02 00 00 49 89 c6 48 89 c6 e8 43 d4 1b 00 4d 85 f6 0f 85 fa 01 00 00 <f3> 0f 1e fa e8 a1 d8 1b 00 45 31 c9 41 b8 01 00 00 00 31 c9 68 a6
RSP: 0018:ffffc90001527308 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000
RDX: ffff888113f75700 RSI: ffffffff8130749a RDI: 0000000000000007
RBP: ffffc90001527340 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000627375 R12: 0000000000000200
R13: ffff888105a49d00 R14: 0000000000000001 R15: 0000000000000000
 dev_vprintk_emit drivers/base/core.c:4840 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4851
 __netdev_printk+0x1da/0x480 net/core/dev.c:11231
 netdev_err+0xe5/0x120 net/core/dev.c:11283
 asix_set_sw_mii drivers/net/usb/asix_common.c:78 [inline]
 asix_check_host_enable+0x190/0x240 drivers/net/usb/asix_common.c:98
 __asix_mdio_read+0xa3/0x260 drivers/net/usb/asix_common.c:506
 asix_phy_reset+0x106/0x1f0 drivers/net/usb/asix_devices.c:215
 ax88178_reset+0x42e/0x12f0 drivers/net/usb/asix_devices.c:1126
 usbnet_open+0xcc/0xbe0 drivers/net/usb/usbnet.c:887
 __dev_open+0x2c4/0x4d0 net/core/dev.c:1442
 __dev_change_flags+0x56f/0x730 net/core/dev.c:8530
 dev_change_flags+0x9a/0x170 net/core/dev.c:8602
 devinet_ioctl+0x13ef/0x1f00 net/ipv4/devinet.c:1150
 inet_ioctl+0x3a6/0x3f0 net/ipv4/af_inet.c:980
 sock_do_ioctl+0x115/0x290 net/socket.c:1190
 sock_ioctl+0x205/0x6e0 net/socket.c:1307
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efd27619d49
Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffdf0cbb298 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efd2754b6c0 RCX: 00007efd27619d49
RDX: 00007ffdf0ccb488 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 00007ffdf0cdb648 R08: 00007ffdf0ccb448 R09: 00007ffdf0ccb3f8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf0ccb488 R14: 0000000000000028 R15: 0000000000008914
 </TASK>