Warning: Permanently added '10.128.10.45' (ED25519) to the list of known hosts. executing program [ 429.490973][ T27] INFO: task kworker/0:1:13 blocked for more than 143 seconds. [ 429.498659][ T27] Not tainted 5.15.159-syzkaller #0 [ 429.505287][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.514302][ T27] task:kworker/0:1 state:D stack:24160 pid: 13 ppid: 2 flags:0x00004000 [ 429.523858][ T27] Workqueue: ipv6_addrconf addrconf_verify_work [ 429.530321][ T27] Call Trace: [ 429.534257][ T27] [ 429.537222][ T27] __schedule+0x12c4/0x45b0 [ 429.542261][ T27] ? mark_lock+0x98/0x340 [ 429.546668][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 429.553114][ T27] ? release_firmware_map_entry+0x190/0x190 [ 429.559027][ T27] ? __mutex_trylock_common+0x8d/0x2e0 [ 429.564976][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 429.570195][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 429.575936][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 429.581470][ T27] schedule+0x11b/0x1f0 [ 429.585648][ T27] schedule_preempt_disabled+0xf/0x20 [ 429.591516][ T27] __mutex_lock_common+0xe34/0x25a0 [ 429.596748][ T27] ? addrconf_verify_work+0xa/0x20 [ 429.602226][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 429.607445][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 429.613828][ T27] ? print_irqtrace_events+0x210/0x210 [ 429.619306][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 429.625557][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 429.630816][ T27] mutex_lock_nested+0x17/0x20 [ 429.635997][ T27] addrconf_verify_work+0xa/0x20 [ 429.641269][ T27] process_one_work+0x8a1/0x10c0 [ 429.646660][ T27] ? worker_detach_from_pool+0x260/0x260 [ 429.652789][ T27] ? _raw_spin_lock_irqsave+0x120/0x120 [ 429.658363][ T27] ? kthread_data+0x4e/0xc0 [ 429.663397][ T27] ? wq_worker_running+0x97/0x170 [ 429.668450][ T27] worker_thread+0xaca/0x1280 [ 429.673529][ T27] kthread+0x3f6/0x4f0 [ 429.677617][ T27] ? rcu_lock_release+0x20/0x20 [ 429.682856][ T27] ? kthread_blkcg+0xd0/0xd0 [ 429.687470][ T27] ret_from_fork+0x1f/0x30 [ 429.692324][ T27] [ 429.695598][ T27] [ 429.695598][ T27] Showing all locks held in the system: [ 429.703823][ T27] 3 locks held by kworker/0:1/13: [ 429.708859][ T27] #0: ffff88814a7a1138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 429.720203][ T27] #1: ffffc90000d27d20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 429.730763][ T27] #2: ffffffff8d9e7e48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 429.740425][ T27] 1 lock held by khungtaskd/27: [ 429.745573][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 429.755195][ T27] 2 locks held by getty/3258: [ 429.759882][ T27] #0: ffff88814b0c2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 429.770146][ T27] #1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 429.780520][ T27] 1 lock held by syz-executor530/3519: [ 429.786241][ T27] [ 429.788571][ T27] ============================================= [ 429.788571][ T27] [ 429.797483][ T27] NMI backtrace for cpu 0 [ 429.801826][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.159-syzkaller #0 [ 429.809811][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 429.819868][ T27] Call Trace: [ 429.823158][ T27] [ 429.826097][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 429.830791][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 429.836434][ T27] ? panic+0x860/0x860 [ 429.840573][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 429.845809][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 429.850756][ T27] ? __wake_up_klogd+0xd5/0x100 [ 429.855632][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 429.861804][ T27] ? _printk+0xd1/0x120 [ 429.865971][ T27] ? panic+0x860/0x860 [ 429.870059][ T27] ? __wake_up_klogd+0xcc/0x100 [ 429.874925][ T27] ? panic+0x860/0x860 [ 429.879006][ T27] ? __rcu_read_unlock+0x92/0x100 [ 429.884105][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 429.890208][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 429.896206][ T27] watchdog+0xe72/0xeb0 [ 429.900417][ T27] kthread+0x3f6/0x4f0 [ 429.904502][ T27] ? hungtask_pm_notify+0x50/0x50 [ 429.909540][ T27] ? kthread_blkcg+0xd0/0xd0 [ 429.914142][ T27] ret_from_fork+0x1f/0x30 [ 429.918584][ T27] [ 429.921739][ T27] Sending NMI from CPU 0 to CPUs 1: [ 429.926954][ C1] NMI backtrace for cpu 1 [ 429.926965][ C1] CPU: 1 PID: 3519 Comm: syz-executor530 Not tainted 5.15.159-syzkaller #0 [ 429.926981][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 429.926990][ C1] RIP: 0010:check_preemption_disabled+0x5c/0x110 [ 429.927015][ C1] Code: 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 04 24 00 02 00 00 74 c9 49 89 f6 49 89 ff 65 4c 8b 25 dd 5d e4 [ 429.927028][ C1] RSP: 0018:ffffc90002c36520 EFLAGS: 00000046 [ 429.927042][ C1] RAX: 0000000080000000 RBX: 0000000000000001 RCX: ffff888013d80000 [ 429.927054][ C1] RDX: 0000000000000000 RSI: ffffffff8a8b3780 RDI: ffffffff8ad8f680 [ 429.927066][ C1] RBP: 00000000ffffffff R08: dffffc0000000000 R09: ffffc90002c36780 [ 429.927077][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246 [ 429.927087][ C1] R13: ffff888013d80000 R14: 00000000ffffffff R15: ffffffff8c91fb40 [ 429.927098][ C1] FS: 0000555556ce3380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 429.927113][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.927123][ C1] CR2: 000055a1c8967600 CR3: 0000000076203000 CR4: 00000000003506e0 [ 429.927137][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 429.927146][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 429.927156][ C1] Call Trace: [ 429.927161][ C1] [ 429.927166][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 429.927184][ C1] ? read_lock_is_recursive+0x10/0x10 [ 429.927220][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 429.927238][ C1] ? unknown_nmi_error+0xd0/0xd0 [ 429.927324][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 429.927341][ C1] ? nmi_handle+0xf7/0x370 [ 429.927358][ C1] ? check_preemption_disabled+0x5c/0x110 [ 429.927378][ C1] ? default_do_nmi+0x62/0x150 [ 429.927395][ C1] ? exc_nmi+0xa8/0x100 [ 429.927411][ C1] ? end_repeat_nmi+0x16/0x31 [ 429.927433][ C1] ? check_preemption_disabled+0x5c/0x110 [ 429.927453][ C1] ? check_preemption_disabled+0x5c/0x110 [ 429.927473][ C1] ? check_preemption_disabled+0x5c/0x110 [ 429.927493][ C1] [ 429.927497][ C1] [ 429.927504][ C1] lock_is_held_type+0x76/0x180 [ 429.927524][ C1] ___might_sleep+0xa2/0x6a0 [ 429.927579][ C1] ? __might_sleep+0xc0/0xc0 [ 429.927596][ C1] ? rcu_lock_release+0x20/0x20 [ 429.927615][ C1] ? tcf_idr_check_alloc+0x97/0x380 [ 429.927670][ C1] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 429.927687][ C1] ? __lock_acquire+0x1ff0/0x1ff0 [ 429.927704][ C1] __mutex_lock_common+0xd4/0x25a0 [ 429.927725][ C1] ? __mutex_unlock_slowpath+0xeb/0x750 [ 429.927744][ C1] ? __mutex_unlock_slowpath+0x218/0x750 [ 429.927761][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 429.927776][ C1] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 429.927794][ C1] ? mutex_lock_io_nested+0x60/0x60 [ 429.927814][ C1] ? audit_tree_destroy_watch+0x20/0x20 [ 429.927833][ C1] ? radix_tree_lookup+0x234/0x280 [ 429.927851][ C1] mutex_lock_nested+0x17/0x20 [ 429.927867][ C1] tcf_idr_check_alloc+0xa1/0x380 [ 429.927886][ C1] tcf_police_init+0x294/0x17c0 [ 429.927903][ C1] ? netlink_rcv_skb+0x1cf/0x410 [ 429.927936][ C1] ? netlink_unicast+0x7b6/0x980 [ 429.927972][ C1] ? __se_sys_sendmsg+0x19a/0x260 [ 429.928037][ C1] ? tcf_police_search+0x40/0x40 [ 429.928065][ C1] ? tcf_action_init_1+0x226/0x7f0 [ 429.928080][ C1] ? nla_memcpy+0x56/0xb0 [ 429.928118][ C1] ? memcpy+0x3c/0x60 [ 429.928155][ C1] ? tcf_police_search+0x40/0x40 [ 429.928171][ C1] tcf_action_init_1+0x50f/0x7f0 [ 429.928193][ C1] ? tc_action_load_ops+0x550/0x550 [ 429.928210][ C1] ? read_lock_is_recursive+0x10/0x10 [ 429.928226][ C1] ? rcu_lock_release+0x5/0x20 [ 429.928253][ C1] tcf_action_init+0x2f3/0x750 [ 429.928273][ C1] ? tcf_action_init_1+0x7f0/0x7f0 [ 429.928301][ C1] ? reacquire_held_locks+0x660/0x660 [ 429.928332][ C1] ? apparmor_capable+0x12e/0x190 [ 429.928376][ C1] ? __nla_parse+0x3c/0x50 [ 429.928395][ C1] tc_ctl_action+0x49b/0xd00 [ 429.928417][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 429.928434][ C1] ? read_lock_is_recursive+0x10/0x10 [ 429.928477][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 429.928494][ C1] rtnetlink_rcv_msg+0x993/0xee0 [ 429.928533][ C1] ? reacquire_held_locks+0x660/0x660 [ 429.928553][ C1] ? rtnetlink_bind+0x80/0x80 [ 429.928577][ C1] ? stack_trace_save+0x1c0/0x1c0 [ 429.928611][ C1] ? __kernel_text_address+0x94/0x100 [ 429.928631][ C1] ? unwind_get_return_address+0x49/0x80 [ 429.928655][ C1] ? reacquire_held_locks+0x660/0x660 [ 429.928671][ C1] ? arch_stack_walk+0xf3/0x140 [ 429.928695][ C1] ? mark_lock+0x98/0x340 [ 429.928713][ C1] ? mark_lock+0x98/0x340 [ 429.928730][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 429.928760][ C1] netlink_rcv_skb+0x1cf/0x410 [ 429.928776][ C1] ? rtnetlink_bind+0x80/0x80 [ 429.928795][ C1] ? netlink_ack+0xb10/0xb10 [ 429.928817][ C1] netlink_unicast+0x7b6/0x980 [ 429.928841][ C1] ? netlink_detachskb+0x90/0x90 [ 429.928859][ C1] ? __virt_addr_valid+0x39e/0x450 [ 429.928892][ C1] ? 0xffffffff81000000 [ 429.928904][ C1] ? __check_object_size+0x300/0x410 [ 429.928951][ C1] ? bpf_lsm_netlink_send+0x5/0x10 [ 429.929001][ C1] netlink_sendmsg+0xa30/0xd60 [ 429.929023][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 429.929039][ C1] ? aa_sock_msg_perm+0x91/0x150 [ 429.929057][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 429.929073][ C1] ? security_socket_sendmsg+0x7d/0xa0 [ 429.929103][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 429.929120][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 429.929139][ C1] ? iovec_from_user+0x300/0x390 [ 429.929190][ C1] ? __sys_sendmsg_sock+0x30/0x30 [ 429.929216][ C1] ___sys_sendmsg+0x252/0x2e0 [ 429.929237][ C1] ? __sys_sendmsg+0x260/0x260 [ 429.929256][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 429.929286][ C1] ? __context_tracking_enter+0x5f/0x90 [ 429.929306][ C1] ? __context_tracking_exit+0x4c/0x80 [ 429.929325][ C1] ? __fdget+0x158/0x220 [ 429.929359][ C1] __se_sys_sendmsg+0x19a/0x260 [ 429.929379][ C1] ? __x64_sys_sendmsg+0x80/0x80 [ 429.929402][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 429.929421][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 429.929440][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 429.929460][ C1] do_syscall_64+0x3b/0xb0 [ 429.929477][ C1] ? clear_bhb_loop+0x15/0x70 [ 429.929493][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 429.929510][ C1] RIP: 0033:0x7f361ebcfdf9 [ 429.929524][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 429.929537][ C1] RSP: 002b:00007ffe2240f6b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 429.929559][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f361ebcfdf9 [ 429.929571][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 429.929581][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 429.929590][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 429.929612][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 429.929629][ C1] [ 429.929636][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.681 msecs [ 429.944048][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 429.944071][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.159-syzkaller #0 [ 429.944092][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 429.944105][ T27] Call Trace: [ 429.944113][ T27] [ 429.944121][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 429.944151][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 429.944176][ T27] ? panic+0x860/0x860 [ 429.944213][ T27] panic+0x318/0x860 [ 429.944237][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 429.944263][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 429.944290][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 429.944317][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 429.944345][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 429.944368][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 429.944395][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 429.944422][ T27] watchdog+0xeb0/0xeb0 [ 429.944458][ T27] kthread+0x3f6/0x4f0 [ 429.944480][ T27] ? hungtask_pm_notify+0x50/0x50 [ 429.944504][ T27] ? kthread_blkcg+0xd0/0xd0 [ 429.944527][ T27] ret_from_fork+0x1f/0x30 [ 429.944564][ T27] [ 429.944794][ T27] Kernel Offset: disabled [ 430.762899][ T27] Rebooting in 86400 seconds..