Warning: Permanently added '10.128.0.164' (ED25519) to the list of known hosts.
executing program
[ 573.586928][ T30] INFO: task kworker/u8:8:2414 blocked for more than 143 seconds.
[ 573.595227][ T30] Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0
[ 573.617715][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 573.626453][ T30] task:kworker/u8:8 state:D stack:21776 pid:2414 tgid:2414 ppid:2 flags:0x00004000
[ 573.656802][ T30] Workqueue: ipv6_addrconf addrconf_verify_work
[ 573.663261][ T30] Call Trace:
[ 573.666561][ T30]
[ 573.676802][ T30] __schedule+0x17e8/0x4a20
[ 573.681407][ T30] ? __pfx___schedule+0x10/0x10
[ 573.686299][ T30] ? __pfx_lock_release+0x10/0x10
[ 573.706802][ T30] ? __mutex_trylock_common+0x92/0x2e0
[ 573.712329][ T30] ? kthread_data+0x52/0xd0
[ 573.727179][ T30] ? schedule+0x90/0x320
[ 573.731543][ T30] ? wq_worker_sleeping+0x66/0x240
[ 573.746788][ T30] ? schedule+0x90/0x320
[ 573.751110][ T30] schedule+0x14b/0x320
[ 573.755306][ T30] schedule_preempt_disabled+0x13/0x30
[ 573.776851][ T30] __mutex_lock+0x6a4/0xd70
[ 573.781465][ T30] ? __mutex_lock+0x527/0xd70
[ 573.786181][ T30] ? addrconf_verify_work+0x19/0x30
[ 573.806804][ T30] ? __pfx___mutex_lock+0x10/0x10
[ 573.811910][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 573.836778][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 573.843194][ T30] ? process_scheduled_works+0x945/0x1830
[ 573.856783][ T30] addrconf_verify_work+0x19/0x30
[ 573.862009][ T30] process_scheduled_works+0xa2c/0x1830
[ 573.876820][ T30] ? __pfx_process_scheduled_works+0x10/0x10
[ 573.882906][ T30] ? assign_work+0x364/0x3d0
[ 573.896780][ T30] worker_thread+0x86d/0xd70
[ 573.901441][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 573.926858][ T30] ? __kthread_parkme+0x169/0x1d0
[ 573.931980][ T30] ? __pfx_worker_thread+0x10/0x10
[ 573.938141][ T30] kthread+0x2f0/0x390
[ 573.942393][ T30] ? __pfx_worker_thread+0x10/0x10
[ 573.957350][ T30] ? __pfx_kthread+0x10/0x10
[ 573.962105][ T30] ret_from_fork+0x4b/0x80
[ 573.966565][ T30] ? __pfx_kthread+0x10/0x10
[ 573.986803][ T30] ret_from_fork_asm+0x1a/0x30
[ 573.991703][ T30]
[ 573.994784][ T30]
[ 573.994784][ T30] Showing all locks held in the system:
[ 574.017885][ T30] 3 locks held by kworker/0:1/9:
[ 574.022900][ T30] 1 lock held by khungtaskd/30:
[ 574.046781][ T30] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0
[ 574.066815][ T30] 3 locks held by kworker/u8:8/2414:
[ 574.072165][ T30] #0: ffff888029d2d148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 574.097253][ T30] #1: ffffc9000951fd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 574.126793][ T30] #2: ffffffff8f5e7448 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30
[ 574.136430][ T30] 2 locks held by getty/4852:
[ 574.157055][ T30] #0: ffff88802a6fa0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 574.176802][ T30] #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10
[ 574.196818][ T30] 1 lock held by syz-executor709/5114:
[ 574.202351][ T30]
[ 574.204702][ T30] =============================================
[ 574.204702][ T30]
[ 574.226801][ T30] NMI backtrace for cpu 1
[ 574.231233][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0
[ 574.241332][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.251588][ T30] Call Trace:
[ 574.254895][ T30]
[ 574.257846][ T30] dump_stack_lvl+0x241/0x360
[ 574.262563][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 574.267793][ T30] ? __pfx__printk+0x10/0x10
[ 574.272408][ T30] ? vprintk_emit+0x631/0x770
[ 574.277121][ T30] ? __pfx_vprintk_emit+0x10/0x10
[ 574.282281][ T30] nmi_cpu_backtrace+0x49c/0x4d0
[ 574.287270][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 574.292786][ T30] ? _printk+0xd5/0x120
[ 574.296950][ T30] ? __pfx__printk+0x10/0x10
[ 574.301548][ T30] ? __wake_up_klogd+0xcc/0x110
[ 574.306418][ T30] ? __pfx__printk+0x10/0x10
[ 574.311019][ T30] ? __rcu_read_unlock+0xa1/0x110
[ 574.316060][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 574.322058][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320
[ 574.328147][ T30] watchdog+0xfde/0x1020
[ 574.332409][ T30] ? watchdog+0x1ea/0x1020
[ 574.336849][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.341540][ T30] kthread+0x2f0/0x390
[ 574.345628][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.350576][ T30] ? __pfx_kthread+0x10/0x10
[ 574.355198][ T30] ret_from_fork+0x4b/0x80
[ 574.359632][ T30] ? __pfx_kthread+0x10/0x10
[ 574.364248][ T30] ret_from_fork_asm+0x1a/0x30
[ 574.369043][ T30]
[ 574.372216][ T30] Sending NMI from CPU 1 to CPUs 0:
[ 574.377514][ C0] NMI backtrace for cpu 0
[ 574.377527][ C0] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0
[ 574.377545][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.377556][ C0] Workqueue: events_power_efficient gc_worker
[ 574.377583][ C0] RIP: 0010:match_held_lock+0x2/0xb0
[ 574.377608][ C0] Code: 11 48 89 d8 48 83 c4 10 5b 41 5e 41 5f c3 cc cc cc cc e8 11 f9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 53 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 20 00 72
[ 574.377623][ C0] RSP: 0018:ffffc900000e78e0 EFLAGS: 00000097
[ 574.377638][ C0] RAX: 0000000000000000 RBX: ffff8880172c0ae0 RCX: ffff8880172c0000
[ 574.377651][ C0] RDX: 0000000000000000 RSI: ffffffff8e333f20 RDI: ffff8880172c0ae0
[ 574.377663][ C0] RBP: 0000000000000000 R08: ffffffff8fad50af R09: 1ffffffff1f5aa15
[ 574.377675][ C0] R10: dffffc0000000000 R11: fffffbfff1f5aa16 R12: 0000000000000246
[ 574.377688][ C0] R13: ffff8880172c0000 R14: 00000000ffffffff R15: ffffffff8e333f20
[ 574.377701][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[ 574.377715][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 574.377727][ C0] CR2: 00007f8e090c6bd0 CR3: 000000000e132000 CR4: 00000000003506f0
[ 574.377742][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 574.377753][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 574.377763][ C0] Call Trace:
[ 574.377773][ C0]
[ 574.377780][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0
[ 574.377806][ C0] ? __pfx_lock_acquire+0x10/0x10
[ 574.377826][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 574.377859][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 574.377880][ C0] ? nmi_handle+0x14f/0x5a0
[ 574.377906][ C0] ? nmi_handle+0x2a/0x5a0
[ 574.377932][ C0] ? match_held_lock+0x2/0xb0
[ 574.377949][ C0] ? default_do_nmi+0x63/0x160
[ 574.377974][ C0] ? exc_nmi+0x123/0x1f0
[ 574.377997][ C0] ? end_repeat_nmi+0xf/0x53
[ 574.378025][ C0] ? match_held_lock+0x2/0xb0
[ 574.378043][ C0] ? match_held_lock+0x2/0xb0
[ 574.378061][ C0] ? match_held_lock+0x2/0xb0
[ 574.378079][ C0]
[ 574.378085][ C0]
[ 574.378091][ C0] lock_is_held_type+0xa9/0x190
[ 574.378110][ C0] ? gc_worker+0x26b/0x1530
[ 574.378127][ C0] __might_resched+0xf4/0x780
[ 574.378151][ C0] ? gc_worker+0x26b/0x1530
[ 574.378168][ C0] ? __pfx___might_resched+0x10/0x10
[ 574.378188][ C0] ? seqcount_lockdep_reader_access+0x1d7/0x220
[ 574.378220][ C0] ? gc_worker+0x26b/0x1530
[ 574.378237][ C0] gc_worker+0xdda/0x1530
[ 574.378255][ C0] ? gc_worker+0x26b/0x1530
[ 574.378275][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 574.378294][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 574.378314][ C0] ? __pfx_gc_worker+0x10/0x10
[ 574.378335][ C0] ? process_scheduled_works+0x945/0x1830
[ 574.378352][ C0] process_scheduled_works+0xa2c/0x1830
[ 574.378389][ C0] ? __pfx_process_scheduled_works+0x10/0x10
[ 574.378412][ C0] ? assign_work+0x364/0x3d0
[ 574.378431][ C0] worker_thread+0x86d/0xd70
[ 574.378454][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 574.378481][ C0] ? __kthread_parkme+0x169/0x1d0
[ 574.378502][ C0] ? __pfx_worker_thread+0x10/0x10
[ 574.378520][ C0] kthread+0x2f0/0x390
[ 574.378541][ C0] ? __pfx_worker_thread+0x10/0x10
[ 574.378559][ C0] ? __pfx_kthread+0x10/0x10
[ 574.378580][ C0] ret_from_fork+0x4b/0x80
[ 574.378603][ C0] ? __pfx_kthread+0x10/0x10
[ 574.378625][ C0] ret_from_fork_asm+0x1a/0x30
[ 574.378658][ C0]
[ 574.378665][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.150 msecs
[ 574.536782][ T30] Kernel panic - not syncing: hung_task: blocked tasks
[ 574.536803][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0
[ 574.536829][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.536844][ T30] Call Trace:
[ 574.536856][ T30]
[ 574.536867][ T30] dump_stack_lvl+0x241/0x360
[ 574.536906][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 574.536935][ T30] ? __pfx__printk+0x10/0x10
[ 574.536958][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 574.536993][ T30] ? vscnprintf+0x5d/0x90
[ 574.537026][ T30] panic+0x349/0x860
[ 574.537054][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 574.537090][ T30] ? __pfx_panic+0x10/0x10
[ 574.537112][ T30] ? tick_nohz_tick_stopped+0x82/0xb0
[ 574.537148][ T30] ? __irq_work_queue_local+0x137/0x410
[ 574.537176][ T30] ? preempt_schedule_thunk+0x1a/0x30
[ 574.537203][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 574.537235][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320
[ 574.537271][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320
[ 574.537308][ T30] watchdog+0x101d/0x1020
[ 574.537338][ T30] ? watchdog+0x1ea/0x1020
[ 574.537371][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.537398][ T30] kthread+0x2f0/0x390
[ 574.537427][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.537452][ T30] ? __pfx_kthread+0x10/0x10
[ 574.537483][ T30] ret_from_fork+0x4b/0x80
[ 574.537514][ T30] ? __pfx_kthread+0x10/0x10
[ 574.537543][ T30] ret_from_fork_asm+0x1a/0x30
[ 574.537592][ T30]
[ 574.539156][ T30] Kernel Offset: disabled
[ 574.900441][ T30] Rebooting in 86400 seconds..