INFO: task kworker/0:5:4089 blocked for more than 143 seconds.
      Not tainted 5.19.0-rc7-syzkaller-00151-gb7423bb23cdd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:22776 pid: 4089 ppid:     2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5146 [inline]
 __schedule+0x93f/0x2630 kernel/sched/core.c:6458
 schedule+0xd2/0x1f0 kernel/sched/core.c:6530
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
 addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4616
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2ef/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task kworker/0:6:4152 blocked for more than 143 seconds.
      Not tainted 5.19.0-rc7-syzkaller-00151-gb7423bb23cdd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6     state:D stack:21896 pid: 4152 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5146 [inline]
 __schedule+0x93f/0x2630 kernel/sched/core.c:6458
 schedule+0xd2/0x1f0 kernel/sched/core.c:6530
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
 unregister_netdev+0xe/0x20 net/core/dev.c:10901
 usbnet_disconnect+0xd8/0x270 drivers/net/usb/usbnet.c:1620
 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:545 [inline]
 device_remove+0x11f/0x170 drivers/base/dd.c:537
 __device_release_driver drivers/base/dd.c:1222 [inline]
 device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1248
 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
 device_del+0x4f3/0xc80 drivers/base/core.c:3615
 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419
 usb_disconnect.cold+0x278/0x6ec drivers/usb/core/hub.c:2235
 hub_port_connect drivers/usb/core/hub.c:5197 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
 port_event drivers/usb/core/hub.c:5653 [inline]
 hub_event+0x1e83/0x4690 drivers/usb/core/hub.c:5735
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2ef/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: 
ffffffff87a95140
 (rcu_read_lock
){....}-{1:2}
, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
6 locks held by kworker/1:2/718:
 #0: ffff888109cd4538
 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: 
ffffc90001e0fda8
 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: 
ffff88810e382190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
ffff88810e382190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5681
 #3: ffff88811cf80190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff88811cf80190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff88810ebbf118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff88810ebbf118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #5: ffff8881169e8ce0
 (&dev->phy_mutex){+.+.}-{3:3}, at: __asix_mdio_read+0x89/0x220 drivers/net/usb/asix_common.c:502
3 locks held by dhcpcd/1217:
2 locks held by getty/1239:
 #0: ffff88810020d098
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900000432e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
3 locks held by kworker/0:5/4089:
 #0: ffff8881108bcd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc90001d8fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}
, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffffffff88ad1e28 (
rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4616
6 locks held by kworker/1:5/4104:
 #0: ffff888109cd4538 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc90001cefda8
 ((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: 
ffff88810f2ca190
 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5681
 #3: ffff88813c2bb190
 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:835 [inline]
, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff88810cf86118 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:835 [inline]
, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #5: 
ffffffff88ad1e28 (rtnl_mutex
){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:10175
6 locks held by kworker/0:6/4152:
 #0: 
ffff888109cd4538
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000204fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: 
ffff88810f3aa190
 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5681
 #3: ffff88813b0d1190 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
){....}-{3:3}, at: usb_disconnect.cold+0x43/0x6ec drivers/usb/core/hub.c:2226
 #4: ffff888118597118
 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1054 [inline]
){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1245
 #5: ffffffff88ad1e28 (rtnl_mutex){+.+.}-{3:3}
, at: unregister_netdev+0xe/0x20 net/core/dev.c:10901
3 locks held by kworker/1:0/12647:
 #0: 
ffff8881108bcd38
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000dbafda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffffffff88ad1e28
 (rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4616
3 locks held by udevd/24372:
 #0: ffff88812ebcd488 (&of->mutex
){+.+.}-{3:3}
, at: kernfs_file_read_iter fs/kernfs/file.c:197 [inline]
, at: kernfs_fop_read_iter+0x189/0x6e0 fs/kernfs/file.c:236
 #1: ffff8881106a5578
 (kn->active
#51){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#51){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x6e0 fs/kernfs/file.c:236
 #2: ffff8881129d7190
 (
&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
6 locks held by kworker/0:3/28040:
 #0: 
ffff888109cd4538 (
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: 
ffffc9000781fda8
 ((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: 
ffff88810f34b190
 (
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:835 [inline]
, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5681
 #3: ffff8881129d7190
 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: 
ffff8881129d3118
 (&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:835 [inline]
, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #5: 
ffffffff88ad1e28 (rtnl_mutex){+.+.}-{3:3}
, at: wpan_phy_register+0x23/0x150 net/ieee802154/core.c:142

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

NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.19.0-rc7-syzkaller-00151-gb7423bb23cdd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:369
 kthread+0x2ef/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1217 Comm: dhcpcd Not tainted 5.19.0-rc7-syzkaller-00151-gb7423bb23cdd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5414 [inline]
RIP: 0010:lock_is_held_type+0x10d/0x140 kernel/locking/lockdep.c:5708
Code: 7a 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <45> 31 ed eb b9 0f 0b 48 c7 c7 c0 9c 47 86 e8 20 0d 00 00 65 c7 05
RSP: 0018:ffffc90000178920 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff87a95080 RDI: ffff8881123f8a70
RBP: ffffffff87a95080 R08: 0000000000000000 R09: ffffffff88dd3e97
R10: fffffbfff11ba7d2 R11: ffffc90005d79000 R12: ffff8881123f8000
R13: ffff8881123f89f8 R14: 00000000ffffffff R15: ffff8881123f8a70
FS:  00007f4935af9740(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555c18b38 CR3: 000000010f65c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:279 [inline]
 rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x560/0x780 kernel/locking/lockdep.c:5676
 local_lock_release include/linux/local_lock_internal.h:38 [inline]
 kcov_remote_stop+0x199/0x610 kernel/kcov.c:1035
 kcov_remote_stop_softirq include/linux/kcov.h:72 [inline]
 __usb_hcd_giveback_urb+0x365/0x5c0 drivers/usb/core/hcd.c:1671
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747
 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x288/0x9a5 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 11 56 34 00 5d be 03 00 00 00 e9 c6 49 d0 00 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 89 45 bd 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc900010c72d8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8881123f8000 RSI: ffffffff812c1341 RDI: 0000000000000007
RBP: ffffc900010c7318 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000037
R13: ffff8881008ad580 R14: 0000000000000200 R15: ffffc900010c7438
 console_trylock_spinning kernel/printk/printk.c:1922 [inline]
 vprintk_emit+0x3f7/0x5f0 kernel/printk/printk.c:2270
 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4627
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4638
 __netdev_printk+0x1c6/0x27a net/core/dev.c:11209
 netdev_err+0xd7/0x109 net/core/dev.c:11261
 asix_set_sw_mii drivers/net/usb/asix_common.c:306 [inline]
 asix_set_sw_mii drivers/net/usb/asix_common.c:300 [inline]
 asix_check_host_enable.cold+0x22/0x66 drivers/net/usb/asix_common.c:77
 __asix_mdio_read+0x93/0x220 drivers/net/usb/asix_common.c:504
 asix_phy_reset+0x104/0x170 drivers/net/usb/asix_devices.c:215
 ax88178_reset+0x42f/0x1420 drivers/net/usb/asix_devices.c:983
 usbnet_open+0xc8/0x5d0 drivers/net/usb/usbnet.c:894
 __dev_open+0x2c4/0x4d0 net/core/dev.c:1432
 __dev_change_flags+0x583/0x750 net/core/dev.c:8537
 dev_change_flags+0x93/0x170 net/core/dev.c:8608
 devinet_ioctl+0x15d1/0x1ca0 net/ipv4/devinet.c:1146
 inet_ioctl+0x1e6/0x320 net/ipv4/af_inet.c:968
 sock_do_ioctl+0xcc/0x230 net/socket.c:1169
 sock_ioctl+0x2f1/0x640 net/socket.c:1286
 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+0x193/0x200 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4935be70e7
Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 61 9d 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffec1541258 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4935af96c8 RCX: 00007f4935be70e7
RDX: 00007ffec1551448 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 00007ffec15615f8 R08: 00007ffec1551408 R09: 00007ffec15513b8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec1551448 R14: 0000000000000028 R15: 0000000000008914
 </TASK>