Warning: Permanently added '10.128.0.236' (ED25519) to the list of known hosts.
executing program
[ 573.647254][ T30] INFO: task kworker/u8:2:35 blocked for more than 143 seconds.
[ 573.655183][ T30] Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 573.664394][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 573.673416][ T30] task:kworker/u8:2 state:D stack:21816 pid:35 tgid:35 ppid:2 flags:0x00004000
[ 573.683919][ T30] Workqueue: ipv6_addrconf addrconf_verify_work
[ 573.690531][ T30] Call Trace:
[ 573.693835][ T30]
[ 573.696813][ T30] __schedule+0x17e8/0x4a20
[ 573.702034][ T30] ? __pfx___schedule+0x10/0x10
[ 573.706938][ T30] ? __pfx_lock_release+0x10/0x10
[ 573.712618][ T30] ? __mutex_trylock_common+0x92/0x2e0
[ 573.718478][ T30] ? kthread_data+0x52/0xd0
[ 573.723021][ T30] ? schedule+0x90/0x320
[ 573.727744][ T30] ? wq_worker_sleeping+0x66/0x240
[ 573.732902][ T30] ? schedule+0x90/0x320
[ 573.737719][ T30] schedule+0x14b/0x320
[ 573.741919][ T30] schedule_preempt_disabled+0x13/0x30
[ 573.747457][ T30] __mutex_lock+0x6a4/0xd70
[ 573.752005][ T30] ? __mutex_lock+0x527/0xd70
[ 573.756734][ T30] ? addrconf_verify_work+0x19/0x30
[ 573.762720][ T30] ? __pfx___mutex_lock+0x10/0x10
[ 573.768334][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 573.774357][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 573.781454][ T30] ? process_scheduled_works+0x945/0x1830
[ 573.787489][ T30] addrconf_verify_work+0x19/0x30
[ 573.792549][ T30] process_scheduled_works+0xa2c/0x1830
[ 573.798648][ T30] ? __pfx_process_scheduled_works+0x10/0x10
[ 573.804678][ T30] ? assign_work+0x364/0x3d0
[ 573.809757][ T30] worker_thread+0x86d/0xd70
[ 573.814431][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 573.820832][ T30] ? __kthread_parkme+0x169/0x1d0
[ 573.825898][ T30] ? __pfx_worker_thread+0x10/0x10
[ 573.831566][ T30] kthread+0x2f0/0x390
[ 573.835677][ T30] ? __pfx_worker_thread+0x10/0x10
[ 573.841290][ T30] ? __pfx_kthread+0x10/0x10
[ 573.845926][ T30] ret_from_fork+0x4b/0x80
[ 573.850994][ T30] ? __pfx_kthread+0x10/0x10
[ 573.855814][ T30] ret_from_fork_asm+0x1a/0x30
[ 573.861172][ T30]
[ 573.864338][ T30]
[ 573.864338][ T30] Showing all locks held in the system:
[ 573.872792][ T30] 1 lock held by khungtaskd/30:
[ 573.887651][ T30] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0
[ 573.907445][ T30] 3 locks held by kworker/u8:2/35:
[ 573.912605][ T30] #0: ffff888029e9a148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 573.937160][ T30] #1: ffffc90000ab7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 573.967152][ T30] #2: ffffffff8f5e7648 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30
[ 573.976728][ T30] 3 locks held by kworker/1:1/45:
[ 573.982306][ T30] 2 locks held by getty/4857:
[ 573.987012][ T30] #0: ffff88802a6f90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 573.997593][ T30] #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10
[ 574.008445][ T30] 2 locks held by syz-executor174/5123:
[ 574.014023][ T30]
[ 574.016372][ T30] =============================================
[ 574.016372][ T30]
[ 574.025638][ T30] NMI backtrace for cpu 0
[ 574.029999][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 574.039910][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.049983][ T30] Call Trace:
[ 574.053285][ T30]
[ 574.056236][ T30] dump_stack_lvl+0x241/0x360
[ 574.060940][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 574.066158][ T30] ? __pfx__printk+0x10/0x10
[ 574.070780][ T30] ? vprintk_emit+0x631/0x770
[ 574.075490][ T30] ? __pfx_vprintk_emit+0x10/0x10
[ 574.080549][ T30] nmi_cpu_backtrace+0x49c/0x4d0
[ 574.085523][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 574.091005][ T30] ? _printk+0xd5/0x120
[ 574.095211][ T30] ? __pfx__printk+0x10/0x10
[ 574.099834][ T30] ? __wake_up_klogd+0xcc/0x110
[ 574.104719][ T30] ? __pfx__printk+0x10/0x10
[ 574.109378][ T30] ? __rcu_read_unlock+0xa1/0x110
[ 574.114448][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 574.120458][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320
[ 574.126471][ T30] watchdog+0xfde/0x1020
[ 574.130743][ T30] ? watchdog+0x1ea/0x1020
[ 574.135190][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.139894][ T30] kthread+0x2f0/0x390
[ 574.143995][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.148697][ T30] ? __pfx_kthread+0x10/0x10
[ 574.153322][ T30] ret_from_fork+0x4b/0x80
[ 574.157771][ T30] ? __pfx_kthread+0x10/0x10
[ 574.162395][ T30] ret_from_fork_asm+0x1a/0x30
[ 574.167206][ T30]
[ 574.170398][ T30] Sending NMI from CPU 0 to CPUs 1:
[ 574.175655][ C1] NMI backtrace for cpu 1
[ 574.175667][ C1] CPU: 1 PID: 45 Comm: kworker/1:1 Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 574.175686][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.175698][ C1] Workqueue: events_power_efficient gc_worker
[ 574.175729][ C1] RIP: 0010:debug_lockdep_rcu_enabled+0x21/0x40
[ 574.175764][ C1] Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 27 bd 25 04 00 74 1e 83 3d 76 ee 25 04 00 74 15 65 48 8b 0c 25 00 d5 03 00 <31> c0 83 b9 dc 0a 00 00 00 0f 94 c0 c3 cc cc cc cc 66 2e 0f 1f 84
[ 574.175778][ C1] RSP: 0018:ffffc90000b57938 EFLAGS: 00000202
[ 574.175792][ C1] RAX: 0000000000000000 RBX: ffffffff89a2494b RCX: ffff88801b2d8000
[ 574.175805][ C1] RDX: 0000000000000000 RSI: 000000000000061c RDI: ffffffff8ccabca0
[ 574.175817][ C1] RBP: ffffc90000b57a50 R08: ffffffff8fad9aaf R09: 1ffffffff1f5b355
[ 574.175830][ C1] R10: dffffc0000000000 R11: fffffbfff1f5b356 R12: 0000000000000000
[ 574.175842][ C1] R13: dffffc0000000000 R14: 000000000000061c R15: 1ffff9200016af30
[ 574.175855][ C1] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[ 574.175869][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 574.175881][ C1] CR2: 0000561278a0c600 CR3: 00000000599b4000 CR4: 00000000003506f0
[ 574.175896][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 574.175907][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 574.175917][ C1] Call Trace:
[ 574.175925][ C1]
[ 574.175933][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0
[ 574.175955][ C1] ? __pfx_lock_acquire+0x10/0x10
[ 574.175976][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 574.175997][ C1] ? nmi_handle+0x2a/0x5a0
[ 574.176032][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 574.176053][ C1] ? nmi_handle+0x14f/0x5a0
[ 574.176078][ C1] ? nmi_handle+0x2a/0x5a0
[ 574.176105][ C1] ? debug_lockdep_rcu_enabled+0x21/0x40
[ 574.176132][ C1] ? default_do_nmi+0x63/0x160
[ 574.176154][ C1] ? exc_nmi+0x123/0x1f0
[ 574.176175][ C1] ? end_repeat_nmi+0xf/0x53
[ 574.176197][ C1] ? gc_worker+0x26b/0x1530
[ 574.176223][ C1] ? debug_lockdep_rcu_enabled+0x21/0x40
[ 574.176250][ C1] ? debug_lockdep_rcu_enabled+0x21/0x40
[ 574.176278][ C1] ? debug_lockdep_rcu_enabled+0x21/0x40
[ 574.176306][ C1]
[ 574.176311][ C1]
[ 574.176317][ C1] __might_resched+0x90/0x780
[ 574.176341][ C1] ? gc_worker+0x26b/0x1530
[ 574.176362][ C1] ? __pfx___might_resched+0x10/0x10
[ 574.176382][ C1] ? seqcount_lockdep_reader_access+0x1d7/0x220
[ 574.176410][ C1] ? gc_worker+0x26b/0x1530
[ 574.176433][ C1] gc_worker+0xdda/0x1530
[ 574.176455][ C1] ? gc_worker+0x26b/0x1530
[ 574.176481][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 574.176501][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 574.176521][ C1] ? __pfx_gc_worker+0x10/0x10
[ 574.176547][ C1] ? process_scheduled_works+0x945/0x1830
[ 574.176565][ C1] process_scheduled_works+0xa2c/0x1830
[ 574.176599][ C1] ? __pfx_process_scheduled_works+0x10/0x10
[ 574.176636][ C1] ? assign_work+0x364/0x3d0
[ 574.176656][ C1] worker_thread+0x86d/0xd70
[ 574.176680][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 574.176704][ C1] ? __kthread_parkme+0x169/0x1d0
[ 574.176726][ C1] ? __pfx_worker_thread+0x10/0x10
[ 574.176745][ C1] kthread+0x2f0/0x390
[ 574.176766][ C1] ? __pfx_worker_thread+0x10/0x10
[ 574.176784][ C1] ? __pfx_kthread+0x10/0x10
[ 574.176805][ C1] ret_from_fork+0x4b/0x80
[ 574.176828][ C1] ? __pfx_kthread+0x10/0x10
[ 574.176850][ C1] ret_from_fork_asm+0x1a/0x30
[ 574.176885][ C1]
[ 574.176904][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.248 msecs
[ 574.538905][ T30] Kernel panic - not syncing: hung_task: blocked tasks
[ 574.545791][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0
[ 574.555705][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 574.565778][ T30] Call Trace:
[ 574.569075][ T30]
[ 574.572048][ T30] dump_stack_lvl+0x241/0x360
[ 574.576760][ T30] ? __pfx_dump_stack_lvl+0x10/0x10
[ 574.581984][ T30] ? __pfx__printk+0x10/0x10
[ 574.586609][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 574.592638][ T30] ? vscnprintf+0x5d/0x90
[ 574.596999][ T30] panic+0x349/0x860
[ 574.600934][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 574.607116][ T30] ? __pfx_panic+0x10/0x10
[ 574.611562][ T30] ? tick_nohz_tick_stopped+0x82/0xb0
[ 574.617061][ T30] ? __irq_work_queue_local+0x137/0x410
[ 574.622634][ T30] ? preempt_schedule_thunk+0x1a/0x30
[ 574.628040][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320
[ 574.634249][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320
[ 574.640436][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320
[ 574.646627][ T30] watchdog+0x101d/0x1020
[ 574.650986][ T30] ? watchdog+0x1ea/0x1020
[ 574.655447][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.660153][ T30] kthread+0x2f0/0x390
[ 574.664276][ T30] ? __pfx_watchdog+0x10/0x10
[ 574.668981][ T30] ? __pfx_kthread+0x10/0x10
[ 574.673608][ T30] ret_from_fork+0x4b/0x80
[ 574.678060][ T30] ? __pfx_kthread+0x10/0x10
[ 574.682680][ T30] ret_from_fork_asm+0x1a/0x30
[ 574.687496][ T30]
[ 574.690890][ T30] Kernel Offset: disabled
[ 574.695247][ T30] Rebooting in 86400 seconds..