Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts.
executing program
[  716.153911][   T29] INFO: task kworker/0:3:1147 blocked for more than 143 seconds.
[  716.161754][   T29]       Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.169505][   T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  716.178277][   T29] task:kworker/0:3     state:D stack:27664 pid: 1147 ppid:     2 flags:0x00004000
[  716.187606][   T29] Workqueue: ipv6_addrconf addrconf_verify_work
[  716.193994][   T29] Call Trace:
[  716.197347][   T29]  <TASK>
[  716.200318][   T29]  __schedule+0xa00/0x4b50
[  716.204915][   T29]  ? find_held_lock+0x2d/0x110
[  716.209720][   T29]  ? wq_worker_sleeping+0x1e5/0x250
[  716.215026][   T29]  ? mark_held_locks+0x9f/0xe0
[  716.219821][   T29]  ? rwlock_bug.part.0+0x90/0x90
[  716.224901][   T29]  ? io_schedule_timeout+0x140/0x140
[  716.230213][   T29]  ? lockdep_hardirqs_on+0x79/0x100
[  716.235629][   T29]  schedule+0xd2/0x1f0
[  716.239738][   T29]  schedule_preempt_disabled+0xf/0x20
[  716.245259][   T29]  __mutex_lock+0xa70/0x1350
[  716.249878][   T29]  ? addrconf_verify_work+0xe/0x20
[  716.255098][   T29]  ? mutex_lock_io_nested+0x1190/0x1190
[  716.260658][   T29]  ? lock_release+0x780/0x780
[  716.265457][   T29]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[  716.271468][   T29]  addrconf_verify_work+0xe/0x20
[  716.276527][   T29]  process_one_work+0x996/0x1610
[  716.281493][   T29]  ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[  716.287015][   T29]  ? rwlock_bug.part.0+0x90/0x90
[  716.291983][   T29]  ? _raw_spin_lock_irq+0x41/0x50
[  716.297142][   T29]  worker_thread+0x665/0x1080
[  716.301844][   T29]  ? __kthread_parkme+0x15f/0x220
[  716.307189][   T29]  ? process_one_work+0x1610/0x1610
[  716.312457][   T29]  kthread+0x2e9/0x3a0
[  716.316668][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.322439][   T29]  ret_from_fork+0x1f/0x30
[  716.327013][   T29]  </TASK>
[  716.330159][   T29] 
[  716.330159][   T29] Showing all locks held in the system:
[  716.337987][   T29] 1 lock held by khungtaskd/29:
[  716.342887][   T29]  #0: ffffffff8bd86ba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  716.353484][   T29] 3 locks held by kworker/1:2/146:
[  716.358708][   T29]  #0: ffff888025e05538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610
[  716.369772][   T29]  #1: ffffc90002a0fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610
[  716.382940][   T29]  #2: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20
[  716.392467][   T29] 3 locks held by kworker/0:3/1147:
[  716.397743][   T29]  #0: ffff888025e05538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610
[  716.408795][   T29]  #1: ffffc90004f5fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610
[  716.421947][   T29]  #2: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20
[  716.431510][   T29] 2 locks held by getty/3289:
[  716.436271][   T29]  #0: ffff88814a6b8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[  716.446195][   T29]  #1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0
[  716.456410][   T29] 1 lock held by syz-executor389/3544:
[  716.461884][   T29]  #0: ffffffff8d58e828 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3a/0x180
[  716.471038][   T29] 
[  716.473385][   T29] =============================================
[  716.473385][   T29] 
[  716.481903][   T29] NMI backtrace for cpu 0
[  716.486248][   T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.496155][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  716.506209][   T29] Call Trace:
[  716.509490][   T29]  <TASK>
[  716.512418][   T29]  dump_stack_lvl+0xcd/0x134
[  716.517066][   T29]  nmi_cpu_backtrace.cold+0x47/0x144
[  716.522363][   T29]  ? lapic_can_unplug_cpu+0x80/0x80
[  716.527567][   T29]  nmi_trigger_cpumask_backtrace+0x1e6/0x230
[  716.533601][   T29]  watchdog+0xc22/0xf90
[  716.537769][   T29]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  716.543790][   T29]  kthread+0x2e9/0x3a0
[  716.547876][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.553542][   T29]  ret_from_fork+0x1f/0x30
[  716.557991][   T29]  </TASK>
[  716.561132][   T29] Sending NMI from CPU 0 to CPUs 1:
[  716.566380][    C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c9/0x240
[  716.567452][   T29] Kernel panic - not syncing: hung_task: blocked tasks
[  716.582974][   T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00145-gab84db251c04 #0
[  716.592881][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  716.602946][   T29] Call Trace:
[  716.606232][   T29]  <TASK>
[  716.609177][   T29]  dump_stack_lvl+0xcd/0x134
[  716.613791][   T29]  panic+0x2d7/0x64a
[  716.617727][   T29]  ? panic_print_sys_info.part.0+0x10b/0x10b
[  716.623739][   T29]  ? lapic_can_unplug_cpu+0x80/0x80
[  716.628963][   T29]  ? preempt_schedule_thunk+0x16/0x18
[  716.634349][   T29]  ? watchdog.cold+0x5/0x143
[  716.639004][   T29]  watchdog.cold+0x16/0x143
[  716.643526][   T29]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  716.649524][   T29]  kthread+0x2e9/0x3a0
[  716.653613][   T29]  ? kthread_complete_and_exit+0x40/0x40
[  716.659275][   T29]  ret_from_fork+0x1f/0x30
[  716.663721][   T29]  </TASK>
[  716.666937][   T29] Kernel Offset: disabled
[  716.671278][   T29] Rebooting in 86400 seconds..