Warning: Permanently added '10.128.10.26' (ED25519) to the list of known hosts. executing program [ 572.978954][ T27] INFO: task kworker/0:0:7 blocked for more than 143 seconds. [ 572.986583][ T27] Not tainted 5.15.161-syzkaller #0 [ 572.993341][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 573.002396][ T27] task:kworker/0:0 state:D stack:26784 pid: 7 ppid: 2 flags:0x00004000 [ 573.011866][ T27] Workqueue: ipv6_addrconf addrconf_verify_work [ 573.018189][ T27] Call Trace: [ 573.021796][ T27] [ 573.024730][ T27] __schedule+0x12c4/0x45b0 [ 573.029642][ T27] ? mark_lock+0x98/0x340 [ 573.033990][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 573.040351][ T27] ? release_firmware_map_entry+0x190/0x190 [ 573.046246][ T27] ? __mutex_trylock_common+0x8d/0x2e0 [ 573.051989][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 573.057193][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 573.062727][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 573.067959][ T27] schedule+0x11b/0x1f0 [ 573.072395][ T27] schedule_preempt_disabled+0xf/0x20 [ 573.077768][ T27] __mutex_lock_common+0xe34/0x25a0 [ 573.083301][ T27] ? addrconf_verify_work+0xa/0x20 [ 573.088419][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 573.093904][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 573.100136][ T27] ? print_irqtrace_events+0x210/0x210 [ 573.105594][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 573.111767][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 573.116972][ T27] mutex_lock_nested+0x17/0x20 [ 573.122076][ T27] addrconf_verify_work+0xa/0x20 [ 573.127016][ T27] process_one_work+0x8a1/0x10c0 [ 573.132395][ T27] ? worker_detach_from_pool+0x260/0x260 [ 573.138043][ T27] ? _raw_spin_lock_irqsave+0x120/0x120 [ 573.144196][ T27] ? kthread_data+0x4e/0xc0 [ 573.148711][ T27] ? wq_worker_running+0x97/0x170 [ 573.154072][ T27] worker_thread+0xaca/0x1280 [ 573.158780][ T27] kthread+0x3f6/0x4f0 [ 573.163235][ T27] ? rcu_lock_release+0x20/0x20 [ 573.168090][ T27] ? kthread_blkcg+0xd0/0xd0 [ 573.173030][ T27] ret_from_fork+0x1f/0x30 [ 573.177493][ T27] [ 573.180945][ T27] [ 573.180945][ T27] Showing all locks held in the system: [ 573.188663][ T27] 3 locks held by kworker/0:0/7: [ 573.194029][ T27] #0: ffff888023d5e138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 573.205228][ T27] #1: ffffc90000cc7d20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 573.215745][ T27] #2: ffffffff8d9e8348 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 573.225427][ T27] 1 lock held by khungtaskd/27: [ 573.230490][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 573.240095][ T27] 2 locks held by getty/3262: [ 573.244763][ T27] #0: ffff8880248e7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 573.254924][ T27] #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 573.265259][ T27] 1 lock held by syz-executor339/3528: [ 573.270915][ T27] [ 573.273231][ T27] ============================================= [ 573.273231][ T27] [ 573.282033][ T27] NMI backtrace for cpu 0 [ 573.286361][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.161-syzkaller #0 [ 573.294326][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.304369][ T27] Call Trace: [ 573.307638][ T27] [ 573.310560][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 573.315239][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 573.320959][ T27] ? panic+0x860/0x860 [ 573.325039][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 573.330197][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 573.335140][ T27] ? __wake_up_klogd+0xd5/0x100 [ 573.339996][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 573.346145][ T27] ? _printk+0xd1/0x120 [ 573.350300][ T27] ? panic+0x860/0x860 [ 573.354369][ T27] ? __wake_up_klogd+0xcc/0x100 [ 573.359214][ T27] ? panic+0x860/0x860 [ 573.363281][ T27] ? __rcu_read_unlock+0x92/0x100 [ 573.368302][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 573.374427][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 573.380407][ T27] watchdog+0xe72/0xeb0 [ 573.384566][ T27] kthread+0x3f6/0x4f0 [ 573.388626][ T27] ? hungtask_pm_notify+0x50/0x50 [ 573.393642][ T27] ? kthread_blkcg+0xd0/0xd0 [ 573.398230][ T27] ret_from_fork+0x1f/0x30 [ 573.402651][ T27] [ 573.405725][ T27] Sending NMI from CPU 0 to CPUs 1: [ 573.410957][ C1] NMI backtrace for cpu 1 [ 573.410976][ C1] CPU: 1 PID: 3528 Comm: syz-executor339 Not tainted 5.15.161-syzkaller #0 [ 573.410991][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.411001][ C1] RIP: 0010:kasan_check_range+0x3/0x290 [ 573.411018][ C1] Code: 48 89 c7 e8 df b6 54 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 <41> 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5 0f 82 [ 573.411029][ C1] RSP: 0018:ffffc90002086420 EFLAGS: 00000046 [ 573.411041][ C1] RAX: 0000000000000019 RBX: 0000000000000668 RCX: ffffffff81631688 [ 573.411052][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fbf9188 [ 573.411061][ C1] RBP: 0000000000000002 R08: dffffc0000000000 R09: fffffbfff1f7f21a [ 573.411071][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 573.411079][ C1] R13: dffffc0000000000 R14: 0000000000000004 R15: ffff888079f2c698 [ 573.411089][ C1] FS: 0000555556184380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 573.411101][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 573.411111][ C1] CR2: 00007ffcbf28b178 CR3: 000000001f7c5000 CR4: 00000000003506e0 [ 573.411123][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 573.411131][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 573.411140][ C1] Call Trace: [ 573.411144][ C1] [ 573.411149][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 573.411164][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.411179][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 573.411198][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 573.411212][ C1] ? nmi_handle+0xf7/0x370 [ 573.411282][ C1] ? kasan_check_range+0x3/0x290 [ 573.411294][ C1] ? default_do_nmi+0x62/0x150 [ 573.411310][ C1] ? exc_nmi+0xa8/0x100 [ 573.411323][ C1] ? end_repeat_nmi+0x16/0x31 [ 573.411338][ C1] ? mark_lock+0x98/0x340 [ 573.411351][ C1] ? kasan_check_range+0x3/0x290 [ 573.411363][ C1] ? kasan_check_range+0x3/0x290 [ 573.411376][ C1] ? kasan_check_range+0x3/0x290 [ 573.411388][ C1] [ 573.411392][ C1] [ 573.411396][ C1] mark_lock+0x98/0x340 [ 573.411410][ C1] __lock_acquire+0xc33/0x1ff0 [ 573.411427][ C1] lock_acquire+0x1db/0x4f0 [ 573.411439][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.411475][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.411490][ C1] ? __might_sleep+0xc0/0xc0 [ 573.411505][ C1] ? rcu_lock_release+0x20/0x20 [ 573.411520][ C1] ? tcf_idr_check_alloc+0x97/0x380 [ 573.411534][ C1] ? __lock_acquire+0x1ff0/0x1ff0 [ 573.411548][ C1] __mutex_lock_common+0x1da/0x25a0 [ 573.411564][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.411580][ C1] ? __mutex_unlock_slowpath+0x218/0x750 [ 573.411595][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 573.411608][ C1] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 573.411623][ C1] ? mutex_lock_io_nested+0x60/0x60 [ 573.411639][ C1] ? __sanitizer_cov_trace_cmp8+0x30/0x80 [ 573.411656][ C1] ? radix_tree_lookup+0x234/0x280 [ 573.411671][ C1] mutex_lock_nested+0x17/0x20 [ 573.411685][ C1] tcf_idr_check_alloc+0xa1/0x380 [ 573.411701][ C1] tcf_police_init+0x294/0x17c0 [ 573.411714][ C1] ? netlink_rcv_skb+0x1cf/0x410 [ 573.411732][ C1] ? netlink_unicast+0x7b6/0x980 [ 573.411748][ C1] ? __se_sys_sendmsg+0x19a/0x260 [ 573.411779][ C1] ? tcf_police_search+0x40/0x40 [ 573.411799][ C1] ? tcf_action_init_1+0x226/0x7f0 [ 573.411813][ C1] ? nla_memcpy+0x56/0xb0 [ 573.411829][ C1] ? memcpy+0x3c/0x60 [ 573.411843][ C1] ? tcf_police_search+0x40/0x40 [ 573.411857][ C1] tcf_action_init_1+0x50f/0x7f0 [ 573.411874][ C1] ? tc_action_load_ops+0x550/0x550 [ 573.411888][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.411901][ C1] ? rcu_lock_release+0x5/0x20 [ 573.411922][ C1] tcf_action_init+0x2f3/0x750 [ 573.411938][ C1] ? tcf_action_init_1+0x7f0/0x7f0 [ 573.411960][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.411987][ C1] ? apparmor_capable+0x12e/0x190 [ 573.412010][ C1] ? __nla_parse+0x3c/0x50 [ 573.412025][ C1] tc_ctl_action+0x49b/0xd00 [ 573.412042][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 573.412056][ C1] ? read_lock_is_recursive+0x10/0x10 [ 573.412087][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 573.412101][ C1] rtnetlink_rcv_msg+0x993/0xee0 [ 573.412118][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.412133][ C1] ? rtnetlink_bind+0x80/0x80 [ 573.412148][ C1] ? stack_trace_save+0x1c0/0x1c0 [ 573.412163][ C1] ? __kernel_text_address+0x94/0x100 [ 573.412180][ C1] ? unwind_get_return_address+0x49/0x80 [ 573.412200][ C1] ? reacquire_held_locks+0x660/0x660 [ 573.412214][ C1] ? arch_stack_walk+0xf3/0x140 [ 573.412252][ C1] ? mark_lock+0x98/0x340 [ 573.412266][ C1] ? mark_lock+0x98/0x340 [ 573.412280][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 573.412302][ C1] netlink_rcv_skb+0x1cf/0x410 [ 573.412316][ C1] ? rtnetlink_bind+0x80/0x80 [ 573.412331][ C1] ? netlink_ack+0xb10/0xb10 [ 573.412348][ C1] netlink_unicast+0x7b6/0x980 [ 573.412366][ C1] ? netlink_detachskb+0x90/0x90 [ 573.412381][ C1] ? __virt_addr_valid+0x39e/0x450 [ 573.412394][ C1] ? 0xffffffff81000000 [ 573.412404][ C1] ? __check_object_size+0x300/0x410 [ 573.412421][ C1] ? bpf_lsm_netlink_send+0x5/0x10 [ 573.412436][ C1] netlink_sendmsg+0xa30/0xd60 [ 573.412453][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 573.412467][ C1] ? aa_sock_msg_perm+0x91/0x150 [ 573.412482][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 573.412495][ C1] ? security_socket_sendmsg+0x7d/0xa0 [ 573.412508][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 573.412522][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 573.412537][ C1] ? iovec_from_user+0x300/0x390 [ 573.412555][ C1] ? __sys_sendmsg_sock+0x30/0x30 [ 573.412575][ C1] ___sys_sendmsg+0x252/0x2e0 [ 573.412592][ C1] ? __sys_sendmsg+0x260/0x260 [ 573.412607][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 573.412629][ C1] ? __context_tracking_enter+0x5f/0x90 [ 573.412646][ C1] ? __context_tracking_exit+0x4c/0x80 [ 573.412661][ C1] ? __fdget+0x158/0x220 [ 573.412677][ C1] __se_sys_sendmsg+0x19a/0x260 [ 573.412692][ C1] ? __x64_sys_sendmsg+0x80/0x80 [ 573.412710][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 573.412725][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 573.412741][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 573.412757][ C1] do_syscall_64+0x3b/0xb0 [ 573.412771][ C1] ? clear_bhb_loop+0x15/0x70 [ 573.412784][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 573.412799][ C1] RIP: 0033:0x7f66a176fdf9 [ 573.412818][ 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 [ 573.412828][ C1] RSP: 002b:00007ffca9d3a1a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 573.412842][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f66a176fdf9 [ 573.412852][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 573.412860][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 573.412868][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 573.412877][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 573.412889][ C1] [ 573.412895][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.937 msecs [ 573.426595][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 574.137356][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.161-syzkaller #0 [ 574.145323][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 574.155371][ T27] Call Trace: [ 574.158649][ T27] [ 574.161582][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 574.166271][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 574.171902][ T27] ? panic+0x860/0x860 [ 574.175987][ T27] panic+0x318/0x860 [ 574.179881][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 574.185509][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 574.191658][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 574.196854][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 574.202929][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 574.209076][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 574.215380][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 574.221539][ T27] watchdog+0xeb0/0xeb0 [ 574.225702][ T27] kthread+0x3f6/0x4f0 [ 574.229936][ T27] ? hungtask_pm_notify+0x50/0x50 [ 574.234963][ T27] ? kthread_blkcg+0xd0/0xd0 [ 574.239547][ T27] ret_from_fork+0x1f/0x30 [ 574.243972][ T27] [ 574.247169][ T27] Kernel Offset: disabled [ 574.251488][ T27] Rebooting in 86400 seconds..