DUID 00:04:79:1d:56:62:bc:67:69:7e:f5:c2:9b:6f:b3:f3:7d:3d
forked to background, child pid 3190
[   26.022492][ T3191] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.027366][ T3191] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   76.231009][   T27] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts.
executing program
[  716.228289][   T29] INFO: task kworker/0:2:923 blocked for more than 143 seconds.
[  716.236042][   T29]       Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.243796][   T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  716.252635][   T29] task:kworker/0:2     state:D stack:26664 pid:  923 ppid:     2 flags:0x00004000
[  716.261957][   T29] Workqueue: ipv6_addrconf addrconf_verify_work
[  716.268308][   T29] Call Trace:
[  716.271594][   T29]  <TASK>
[  716.274519][   T29]  __schedule+0xa00/0x4b50
[  716.279039][   T29]  ? io_schedule_timeout+0x140/0x140
[  716.284362][   T29]  ? preempt_schedule_thunk+0x16/0x18
[  716.289792][   T29]  ? preempt_schedule_common+0x59/0xc0
[  716.295280][   T29]  ? io_schedule_timeout+0x140/0x140
[  716.300634][   T29]  schedule+0xd2/0x1f0
[  716.304729][   T29]  schedule_preempt_disabled+0xf/0x20
[  716.310171][   T29]  __mutex_lock+0xa70/0x1350
[  716.314777][   T29]  ? addrconf_verify_work+0xe/0x20
[  716.320018][   T29]  ? mutex_lock_io_nested+0x1190/0x1190
[  716.325588][   T29]  ? lock_release+0x780/0x780
[  716.330325][   T29]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[  716.336456][   T29]  addrconf_verify_work+0xe/0x20
[  716.341490][   T29]  process_one_work+0x996/0x1610
[  716.346480][   T29]  ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[  716.351939][   T29]  ? rwlock_bug.part.0+0x90/0x90
[  716.356900][   T29]  ? _raw_spin_lock_irq+0x41/0x50
[  716.362279][   T29]  worker_thread+0x665/0x1080
[  716.367076][   T29]  ? __kthread_parkme+0x15f/0x220
[  716.372171][   T29]  ? process_one_work+0x1610/0x1610
[  716.377402][   T29]  kthread+0x2e9/0x3a0
[  716.381560][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.387226][   T29]  ret_from_fork+0x1f/0x30
[  716.391845][   T29]  </TASK>
[  716.394946][   T29] 
[  716.394946][   T29] Showing all locks held in the system:
[  716.402726][   T29] 1 lock held by khungtaskd/29:
[  716.407579][   T29]  #0: ffffffff8bd86ba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  716.417541][   T29] 3 locks held by kworker/0:2/923:
[  716.422717][   T29]  #0: ffff88802602fd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610
[  716.433791][   T29]  #1: ffffc900048dfda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610
[  716.446955][   T29]  #2: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20
[  716.456473][   T29] 2 locks held by getty/3290:
[  716.461218][   T29]  #0: ffff8880269db098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[  716.471141][   T29]  #1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0
[  716.481338][   T29] 3 locks held by syz-executor251/3642:
[  716.486898][   T29] 
[  716.489293][   T29] =============================================
[  716.489293][   T29] 
[  716.497756][   T29] NMI backtrace for cpu 0
[  716.502082][   T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.511977][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  716.522034][   T29] Call Trace:
[  716.525315][   T29]  <TASK>
[  716.528252][   T29]  dump_stack_lvl+0xcd/0x134
[  716.532906][   T29]  nmi_cpu_backtrace.cold+0x47/0x144
[  716.538205][   T29]  ? lapic_can_unplug_cpu+0x80/0x80
[  716.543412][   T29]  nmi_trigger_cpumask_backtrace+0x1e6/0x230
[  716.549438][   T29]  watchdog+0xc22/0xf90
[  716.553603][   T29]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  716.559601][   T29]  kthread+0x2e9/0x3a0
[  716.563680][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.569319][   T29]  ret_from_fork+0x1f/0x30
[  716.573761][   T29]  </TASK>
[  716.576915][   T29] Sending NMI from CPU 0 to CPUs 1:
[  716.582162][    C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c9/0x240
[  716.583190][   T29] Kernel panic - not syncing: hung_task: blocked tasks
[  716.598696][   T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.608584][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  716.618638][   T29] Call Trace:
[  716.621922][   T29]  <TASK>
[  716.624858][   T29]  dump_stack_lvl+0xcd/0x134
[  716.629471][   T29]  panic+0x2d7/0x64a
[  716.633357][   T29]  ? panic_print_sys_info.part.0+0x10b/0x10b
[  716.639341][   T29]  ? lapic_can_unplug_cpu+0x80/0x80
[  716.644553][   T29]  ? preempt_schedule_thunk+0x16/0x18
[  716.649937][   T29]  ? watchdog.cold+0x5/0x143
[  716.654545][   T29]  watchdog.cold+0x16/0x143
[  716.659045][   T29]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  716.665023][   T29]  kthread+0x2e9/0x3a0
[  716.669083][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.674735][   T29]  ret_from_fork+0x1f/0x30
[  716.679178][   T29]  </TASK>
[  716.682476][   T29] Kernel Offset: disabled
[  716.686812][   T29] Rebooting in 86400 seconds..