Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. executing program [ 572.889349][ T27] INFO: task kworker/0:3:1281 blocked for more than 143 seconds. [ 572.897215][ T27] Not tainted 5.15.160-syzkaller #0 [ 572.902974][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 572.911666][ T27] task:kworker/0:3 state:D stack:25248 pid: 1281 ppid: 2 flags:0x00004000 [ 572.920921][ T27] Workqueue: ipv6_addrconf addrconf_verify_work [ 572.927181][ T27] Call Trace: [ 572.930491][ T27] [ 572.933427][ T27] __schedule+0x12c4/0x45b0 [ 572.938206][ T27] ? mark_lock+0x98/0x340 [ 572.942572][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 572.948554][ T27] ? release_firmware_map_entry+0x190/0x190 [ 572.954488][ T27] ? __mutex_trylock_common+0x8d/0x2e0 [ 572.959969][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 572.965166][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 572.970391][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 572.975589][ T27] schedule+0x11b/0x1f0 [ 572.979775][ T27] schedule_preempt_disabled+0xf/0x20 [ 572.985143][ T27] __mutex_lock_common+0xe34/0x25a0 [ 572.990408][ T27] ? addrconf_verify_work+0xa/0x20 [ 572.995528][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 573.000775][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 573.006753][ T27] ? print_irqtrace_events+0x210/0x210 [ 573.012262][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 573.018156][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 573.023392][ T27] mutex_lock_nested+0x17/0x20 [ 573.028150][ T27] addrconf_verify_work+0xa/0x20 [ 573.033122][ T27] process_one_work+0x8a1/0x10c0 [ 573.038073][ T27] ? worker_detach_from_pool+0x260/0x260 [ 573.043764][ T27] ? _raw_spin_lock_irqsave+0x120/0x120 [ 573.049328][ T27] ? kthread_data+0x4e/0xc0 [ 573.053831][ T27] ? wq_worker_running+0x97/0x170 [ 573.058965][ T27] worker_thread+0xaca/0x1280 [ 573.063695][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 573.069641][ T27] kthread+0x3f6/0x4f0 [ 573.073710][ T27] ? rcu_lock_release+0x20/0x20 [ 573.078553][ T27] ? kthread_blkcg+0xd0/0xd0 [ 573.083175][ T27] ret_from_fork+0x1f/0x30 [ 573.087603][ T27] [ 573.090755][ T27] [ 573.090755][ T27] Showing all locks held in the system: [ 573.098476][ T27] 1 lock held by khungtaskd/27: [ 573.103352][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 573.112730][ T27] 3 locks held by kworker/0:3/1281: [ 573.117914][ T27] #0: ffff88802346c138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 573.128966][ T27] #1: ffffc9000575fd20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 573.139272][ T27] #2: ffffffff8d9e7e48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 573.148689][ T27] 2 locks held by getty/3257: [ 573.153386][ T27] #0: ffff88814b86a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 573.163153][ T27] #1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 573.173283][ T27] 2 locks held by syz-executor205/3523: [ 573.178816][ T27] [ 573.181218][ T27] ============================================= [ 573.181218][ T27] [ 573.189649][ T27] NMI backtrace for cpu 0 [ 573.193984][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0 [ 573.201952][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 573.211991][ T27] Call Trace: [ 573.215261][ T27] [ 573.218179][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 573.222850][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 573.228473][ T27] ? panic+0x860/0x860 [ 573.232537][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 573.237644][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 573.242571][ T27] ? __wake_up_klogd+0xd5/0x100 [ 573.247414][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 573.253554][ T27] ? _printk+0xd1/0x120 [ 573.257702][ T27] ? panic+0x860/0x860 [ 573.261761][ T27] ? __wake_up_klogd+0xcc/0x100 [ 573.266601][ T27] ? panic+0x860/0x860 [ 573.270663][ T27] ? __rcu_read_unlock+0x92/0x100 [ 573.275681][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 573.281737][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 573.287711][ T27] watchdog+0xe72/0xeb0 [ 573.291873][ T27] kthread+0x3f6/0x4f0 [ 573.295935][ T27] ? hungtask_pm_notify+0x50/0x50 [ 573.300947][ T27] ? kthread_blkcg+0xd0/0xd0 [ 573.305529][ T27] ret_from_fork+0x1f/0x30 [ 573.309950][ T27] [ 573.313033][ T27] Sending NMI from CPU 0 to CPUs 1: [ 573.318242][ C1] NMI backtrace for cpu 1 [ 573.318252][ C1] CPU: 1 PID: 3523 Comm: syz-executor205 Not tainted 5.15.160-syzkaller #0 [ 573.318268][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 573.318276][ C1] RIP: 0010:validate_chain+0x162/0x5930 [ 573.318295][ C1] Code: db 0f 00 0f 84 e2 03 00 00 48 b8 eb 83 b5 80 46 86 c8 61 49 0f af c6 48 c1 e8 2f 48 8d 1c c5 40 80 ab 8f 48 89 d8 48 c1 e8 03 <48> 89 44 24 50 42 80 3c 20 00 74 08 48 89 df e8 6a c5 66 00 48 89 [ 573.318307][ C1] RSP: 0018:ffffc900030361c0 EFLAGS: 00000806 [ 573.318319][ C1] RAX: 1ffffffff1f65965 RBX: ffffffff8fb2cb28 RCX: ffffffff81636502 [ 573.318330][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fbf8188 [ 573.318340][ C1] RBP: ffffc90003036470 R08: dffffc0000000000 R09: fffffbfff1f7f032 [ 573.318350][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 573.318359][ C1] R13: ffff8880220a8b38 R14: 83e8343fbcdf6e0b R15: ffff8880220a8b38 [ 573.318370][ C1] FS: 0000555556335380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 573.318383][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 573.318392][ C1] CR2: 000055c2ef817b08 CR3: 00000000723ad000 CR4: 00000000003506e0 [ 573.318404][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 573.318412][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 573.318421][ C1] Call Trace: [ 573.318425][ C1] [ 573.318430][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 573.318445][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.318460][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 573.318480][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 573.318495][ C1] ? nmi_handle+0xf7/0x370 [ 573.318510][ C1] ? validate_chain+0x162/0x5930 [ 573.318523][ C1] ? default_do_nmi+0x62/0x150 [ 573.318538][ C1] ? exc_nmi+0xa8/0x100 [ 573.318552][ C1] ? end_repeat_nmi+0x16/0x31 [ 573.318567][ C1] ? validate_chain+0x112/0x5930 [ 573.318581][ C1] ? validate_chain+0x162/0x5930 [ 573.318594][ C1] ? validate_chain+0x162/0x5930 [ 573.318608][ C1] ? validate_chain+0x162/0x5930 [ 573.318622][ C1] [ 573.318626][ C1] [ 573.318636][ C1] ? print_irqtrace_events+0x210/0x210 [ 573.318649][ C1] ? do_raw_spin_unlock+0x137/0x8b0 [ 573.318663][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.318677][ C1] ? finish_lock_switch+0x8f/0x100 [ 573.318692][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 573.318707][ C1] ? finish_lock_switch+0x8f/0x100 [ 573.318721][ C1] ? finish_task_switch+0x134/0x630 [ 573.318737][ C1] ? __switch_to_asm+0x34/0x60 [ 573.318753][ C1] ? __schedule+0x12cc/0x45b0 [ 573.318775][ C1] ? mark_lock+0x98/0x340 [ 573.318788][ C1] __lock_acquire+0x1295/0x1ff0 [ 573.318806][ C1] lock_acquire+0x1db/0x4f0 [ 573.318818][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.318835][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.318849][ C1] ? __might_sleep+0xc0/0xc0 [ 573.318863][ C1] ? rcu_lock_release+0x20/0x20 [ 573.318879][ C1] ? tcf_idr_check_alloc+0x97/0x380 [ 573.318892][ C1] ? __lock_acquire+0x1ff0/0x1ff0 [ 573.318906][ C1] __mutex_lock_common+0x1da/0x25a0 [ 573.318920][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.318936][ C1] ? __mutex_unlock_slowpath+0x218/0x750 [ 573.318950][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.318964][ C1] ? mutex_lock_io_nested+0x60/0x60 [ 573.318979][ C1] ? radix_tree_lookup+0xee/0x280 [ 573.318994][ C1] ? radix_tree_lookup+0x13c/0x280 [ 573.319008][ C1] ? radix_tree_lookup+0x234/0x280 [ 573.319022][ C1] mutex_lock_nested+0x17/0x20 [ 573.319036][ C1] tcf_idr_check_alloc+0xa1/0x380 [ 573.319051][ C1] tcf_police_init+0x294/0x17c0 [ 573.319064][ C1] ? netlink_rcv_skb+0x1cf/0x410 [ 573.319076][ C1] ? netlink_unicast+0x7b6/0x980 [ 573.319091][ C1] ? __se_sys_sendmsg+0x19a/0x260 [ 573.319111][ C1] ? tcf_police_search+0x40/0x40 [ 573.319132][ C1] ? tcf_action_init_1+0x226/0x7f0 [ 573.319145][ C1] ? nla_memcpy+0x56/0xb0 [ 573.319162][ C1] ? memcpy+0x3c/0x60 [ 573.319176][ C1] ? tcf_police_search+0x40/0x40 [ 573.319189][ C1] tcf_action_init_1+0x50f/0x7f0 [ 573.319205][ C1] ? tc_action_load_ops+0x550/0x550 [ 573.319219][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.319232][ C1] ? rcu_lock_release+0x5/0x20 [ 573.319253][ C1] tcf_action_init+0x2f3/0x750 [ 573.319269][ C1] ? tcf_action_init_1+0x7f0/0x7f0 [ 573.319291][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.319313][ C1] ? apparmor_capable+0x12e/0x190 [ 573.319329][ C1] ? __nla_parse+0x3c/0x50 [ 573.319344][ C1] tc_ctl_action+0x49b/0xd00 [ 573.319362][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 573.319375][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.319407][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 573.319421][ C1] rtnetlink_rcv_msg+0x993/0xee0 [ 573.319437][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.319453][ C1] ? rtnetlink_bind+0x80/0x80 [ 573.319468][ C1] ? stack_trace_save+0x1c0/0x1c0 [ 573.319483][ C1] ? __kernel_text_address+0x94/0x100 [ 573.319499][ C1] ? unwind_get_return_address+0x49/0x80 [ 573.319515][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.319528][ C1] ? arch_stack_walk+0xf3/0x140 [ 573.319545][ C1] ? mark_lock+0x98/0x340 [ 573.319559][ C1] ? mark_lock+0x98/0x340 [ 573.319572][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 573.319594][ C1] netlink_rcv_skb+0x1cf/0x410 [ 573.319608][ C1] ? rtnetlink_bind+0x80/0x80 [ 573.319623][ C1] ? netlink_ack+0xb10/0xb10 [ 573.319640][ C1] netlink_unicast+0x7b6/0x980 [ 573.319658][ C1] ? netlink_detachskb+0x90/0x90 [ 573.319673][ C1] ? __virt_addr_valid+0x39e/0x450 [ 573.319686][ C1] ? 0xffffffff81000000 [ 573.319695][ C1] ? __check_object_size+0x300/0x410 [ 573.319712][ C1] ? bpf_lsm_netlink_send+0x5/0x10 [ 573.319726][ C1] netlink_sendmsg+0xa30/0xd60 [ 573.319743][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 573.319757][ C1] ? aa_sock_msg_perm+0x91/0x150 [ 573.319777][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 573.319790][ C1] ? security_socket_sendmsg+0x7d/0xa0 [ 573.319803][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 573.319816][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 573.319831][ C1] ? iovec_from_user+0x300/0x390 [ 573.319849][ C1] ? __sys_sendmsg_sock+0x30/0x30 [ 573.319869][ C1] ___sys_sendmsg+0x252/0x2e0 [ 573.319885][ C1] ? __sys_sendmsg+0x260/0x260 [ 573.319901][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 573.319923][ C1] ? __context_tracking_enter+0x5f/0x90 [ 573.319939][ C1] ? __context_tracking_exit+0x4c/0x80 [ 573.319954][ C1] ? __fdget+0x158/0x220 [ 573.319970][ C1] __se_sys_sendmsg+0x19a/0x260 [ 573.319986][ C1] ? __x64_sys_sendmsg+0x80/0x80 [ 573.320004][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 573.320019][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 573.320034][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 573.320051][ C1] do_syscall_64+0x3b/0xb0 [ 573.320064][ C1] ? clear_bhb_loop+0x15/0x70 [ 573.320077][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 573.320090][ C1] RIP: 0033:0x7ff70eda2df9 [ 573.320102][ 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 [ 573.320112][ C1] RSP: 002b:00007ffd072cfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 573.320126][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff70eda2df9 [ 573.320136][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 573.320144][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 573.320152][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 573.320160][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 573.320173][ C1] [ 573.320178][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.935 msecs [ 573.320248][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 574.083930][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0 [ 574.091898][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 574.101936][ T27] Call Trace: [ 574.105201][ T27] [ 574.108120][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 574.112791][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 574.118415][ T27] ? panic+0x860/0x860 [ 574.122483][ T27] panic+0x318/0x860 [ 574.126367][ T27] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 574.132532][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 574.138676][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 574.143862][ T27] ? __irq_work_queue_local+0x122/0x180 [ 574.149400][ T27] ? irq_work_queue+0xc6/0x150 [ 574.154149][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 574.160204][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 574.166259][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 574.172314][ T27] ? nmi_trigger_cpumask_backtrace+0x22a/0x2a0 [ 574.178460][ T27] watchdog+0xeb0/0xeb0 [ 574.182619][ T27] kthread+0x3f6/0x4f0 [ 574.186676][ T27] ? hungtask_pm_notify+0x50/0x50 [ 574.191690][ T27] ? kthread_blkcg+0xd0/0xd0 [ 574.196273][ T27] ret_from_fork+0x1f/0x30 [ 574.200692][ T27] [ 574.203887][ T27] Kernel Offset: disabled [ 574.208199][ T27] Rebooting in 86400 seconds..