Warning: Permanently added '10.128.0.102' (ED25519) to the list of known hosts. executing program [ 573.417209][ T30] INFO: task kworker/u8:9:2461 blocked for more than 143 seconds. [ 573.425255][ T30] Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0 [ 573.434301][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 573.443439][ T30] task:kworker/u8:9 state:D stack:20752 pid:2461 tgid:2461 ppid:2 flags:0x00004000 [ 573.454138][ T30] Workqueue: ipv6_addrconf addrconf_verify_work [ 573.460765][ T30] Call Trace: [ 573.464061][ T30] [ 573.467705][ T30] __schedule+0x17e8/0x4a20 [ 573.472310][ T30] ? __pfx___schedule+0x10/0x10 [ 573.477867][ T30] ? __pfx_lock_release+0x10/0x10 [ 573.482952][ T30] ? __mutex_trylock_common+0x92/0x2e0 [ 573.489041][ T30] ? kthread_data+0x52/0xd0 [ 573.493578][ T30] ? schedule+0x90/0x320 [ 573.498380][ T30] ? wq_worker_sleeping+0x66/0x240 [ 573.503537][ T30] ? schedule+0x90/0x320 [ 573.508270][ T30] schedule+0x14b/0x320 [ 573.512458][ T30] schedule_preempt_disabled+0x13/0x30 [ 573.518255][ T30] __mutex_lock+0x6a4/0xd70 [ 573.522792][ T30] ? __mutex_lock+0x527/0xd70 [ 573.528050][ T30] ? addrconf_verify_work+0x19/0x30 [ 573.533290][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 573.539001][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 573.545028][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 573.552332][ T30] ? process_scheduled_works+0x945/0x1830 [ 573.558465][ T30] addrconf_verify_work+0x19/0x30 [ 573.563514][ T30] process_scheduled_works+0xa2c/0x1830 [ 573.569635][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 573.575689][ T30] ? assign_work+0x364/0x3d0 [ 573.580783][ T30] worker_thread+0x86d/0xd70 [ 573.585414][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 573.591780][ T30] ? __kthread_parkme+0x169/0x1d0 [ 573.597129][ T30] ? __pfx_worker_thread+0x10/0x10 [ 573.602300][ T30] kthread+0x2f0/0x390 [ 573.606391][ T30] ? __pfx_worker_thread+0x10/0x10 [ 573.612105][ T30] ? __pfx_kthread+0x10/0x10 [ 573.616747][ T30] ret_from_fork+0x4b/0x80 [ 573.636919][ T30] ? __pfx_kthread+0x10/0x10 [ 573.641559][ T30] ret_from_fork_asm+0x1a/0x30 [ 573.646361][ T30] [ 573.657210][ T30] [ 573.657210][ T30] Showing all locks held in the system: [ 573.664963][ T30] 1 lock held by khungtaskd/30: [ 573.686905][ T30] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 573.706891][ T30] 5 locks held by kworker/1:2/57: [ 573.711984][ T30] 3 locks held by kworker/u8:9/2461: [ 573.726886][ T30] #0: ffff88802a498948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 573.747007][ T30] #1: ffffc900092afd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 573.761101][ T30] #2: ffffffff8f5e7648 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 [ 573.771000][ T30] 2 locks held by getty/4846: [ 573.775689][ T30] #0: ffff88802afa10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 573.785941][ T30] #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 573.797015][ T30] 1 lock held by syz-executor614/5113: [ 573.802497][ T30] [ 573.804828][ T30] ============================================= [ 573.804828][ T30] [ 573.814000][ T30] NMI backtrace for cpu 0 [ 573.818351][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0 [ 573.828255][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.838322][ T30] Call Trace: [ 573.841612][ T30] [ 573.844548][ T30] dump_stack_lvl+0x241/0x360 [ 573.849275][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 573.854496][ T30] ? __pfx__printk+0x10/0x10 [ 573.859110][ T30] ? vprintk_emit+0x631/0x770 [ 573.863810][ T30] ? __pfx_vprintk_emit+0x10/0x10 [ 573.868880][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 573.873848][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 573.879339][ T30] ? _printk+0xd5/0x120 [ 573.883512][ T30] ? __pfx__printk+0x10/0x10 [ 573.888121][ T30] ? __wake_up_klogd+0xcc/0x110 [ 573.892999][ T30] ? __pfx__printk+0x10/0x10 [ 573.897628][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 573.902682][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 573.908681][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 573.914686][ T30] watchdog+0xfde/0x1020 [ 573.918945][ T30] ? watchdog+0x1ea/0x1020 [ 573.923381][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.928072][ T30] kthread+0x2f0/0x390 [ 573.932229][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.936928][ T30] ? __pfx_kthread+0x10/0x10 [ 573.941543][ T30] ret_from_fork+0x4b/0x80 [ 573.946060][ T30] ? __pfx_kthread+0x10/0x10 [ 573.950665][ T30] ret_from_fork_asm+0x1a/0x30 [ 573.955463][ T30] [ 573.958610][ T30] Sending NMI from CPU 0 to CPUs 1: [ 573.963845][ C1] NMI backtrace for cpu 1 [ 573.963856][ C1] CPU: 1 PID: 5113 Comm: syz-executor614 Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0 [ 573.963873][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.963888][ C1] RIP: 0010:kasan_check_range+0x64/0x290 [ 573.963918][ C1] Code: 48 c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 4d 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 <4c> 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c [ 573.963931][ C1] RSP: 0018:ffffc900032e6480 EFLAGS: 00000803 [ 573.963949][ C1] RAX: 0000000000000001 RBX: 1ffffffff25f6ab0 RCX: ffffffff8172778d [ 573.963961][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92fb5580 [ 573.963971][ C1] RBP: 000000000001ffff R08: ffffffff92fb5587 R09: 1ffffffff25f6ab0 [ 573.963982][ C1] R10: dffffc0000000000 R11: fffffbfff25f6ab0 R12: 0000000000000000 [ 573.963993][ C1] R13: ffff888052ffda00 R14: dffffc0000000001 R15: fffffbfff25f6ab1 [ 573.964005][ C1] FS: 000055558127b380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 573.964019][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 573.964030][ C1] CR2: 00007f8cf9b2a580 CR3: 000000007a6e0000 CR4: 00000000003506f0 [ 573.964043][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 573.964052][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 573.964062][ C1] Call Trace: [ 573.964069][ C1] [ 573.964076][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 573.964096][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 573.964114][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 573.964141][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 573.964160][ C1] ? nmi_handle+0x14f/0x5a0 [ 573.964183][ C1] ? nmi_handle+0x2a/0x5a0 [ 573.964208][ C1] ? kasan_check_range+0x64/0x290 [ 573.964229][ C1] ? default_do_nmi+0x63/0x160 [ 573.964249][ C1] ? exc_nmi+0x123/0x1f0 [ 573.964267][ C1] ? end_repeat_nmi+0xf/0x53 [ 573.964289][ C1] ? __lock_acquire+0xc5d/0x1fd0 [ 573.964306][ C1] ? kasan_check_range+0x64/0x290 [ 573.964327][ C1] ? kasan_check_range+0x64/0x290 [ 573.964349][ C1] ? kasan_check_range+0x64/0x290 [ 573.964370][ C1] [ 573.964375][ C1] [ 573.964382][ C1] __lock_acquire+0xc5d/0x1fd0 [ 573.964406][ C1] lock_acquire+0x1ed/0x550 [ 573.964422][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.964444][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 573.964460][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.964478][ C1] ? __pfx_lock_release+0x10/0x10 [ 573.964497][ C1] ? __pfx___sanitizer_cov_trace_const_cmp8+0x10/0x10 [ 573.964518][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.964535][ C1] tcf_idr_check_alloc+0x12d/0x900 [ 573.964563][ C1] ? tcf_idr_check_alloc+0x110/0x900 [ 573.964582][ C1] ? __pfx_tcf_idr_check_alloc+0x10/0x10 [ 573.964599][ C1] ? __nla_parse+0x40/0x60 [ 573.964621][ C1] tcf_police_init+0x29b/0x17c0 [ 573.964639][ C1] ? __sock_sendmsg+0x221/0x270 [ 573.964658][ C1] ? ____sys_sendmsg+0x525/0x7d0 [ 573.964679][ C1] ? __pfx_tcf_police_init+0x10/0x10 [ 573.964708][ C1] ? nla_memcpy+0x5d/0xc0 [ 573.964727][ C1] ? __asan_memcpy+0x40/0x70 [ 573.964744][ C1] ? __pfx_tcf_police_init+0x10/0x10 [ 573.964763][ C1] tcf_action_init_1+0x5d7/0x890 [ 573.964784][ C1] ? __pfx_tcf_action_init_1+0x10/0x10 [ 573.964829][ C1] ? tcf_action_fill_size+0x1e/0x2d0 [ 573.964849][ C1] tcf_action_init+0x2e4/0x940 [ 573.964874][ C1] ? __pfx_tcf_action_init+0x10/0x10 [ 573.964918][ C1] ? apparmor_capable+0x138/0x1b0 [ 573.964951][ C1] tc_ctl_action+0x47d/0xcf0 [ 573.964976][ C1] ? __pfx_tc_ctl_action+0x10/0x10 [ 573.965007][ C1] ? trace_contention_end+0x3c/0x120 [ 573.965028][ C1] ? __mutex_lock+0x2ef/0xd70 [ 573.965055][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 573.965082][ C1] ? __pfx_tc_ctl_action+0x10/0x10 [ 573.965101][ C1] rtnetlink_rcv_msg+0x89b/0x1180 [ 573.965125][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 573.965147][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 573.965166][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 573.965188][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.965208][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.965228][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 573.965257][ C1] ? mark_lock+0x9a/0x350 [ 573.965274][ C1] ? __pfx_validate_chain+0x10/0x10 [ 573.965295][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 573.965318][ C1] ? mark_lock+0x9a/0x350 [ 573.965337][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 573.965362][ C1] netlink_rcv_skb+0x1e3/0x430 [ 573.965384][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 573.965406][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 573.965437][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 573.965459][ C1] netlink_unicast+0x7ea/0x980 [ 573.965482][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 573.965501][ C1] ? __virt_addr_valid+0x183/0x520 [ 573.965524][ C1] ? __check_object_size+0x49c/0x900 [ 573.965539][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 573.965564][ C1] netlink_sendmsg+0x8db/0xcb0 [ 573.965591][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 573.965614][ C1] ? __import_iovec+0x536/0x820 [ 573.965635][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 573.965654][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 573.965669][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 573.965694][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 573.965715][ C1] __sock_sendmsg+0x221/0x270 [ 573.965737][ C1] ____sys_sendmsg+0x525/0x7d0 [ 573.965758][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 573.965782][ C1] __sys_sendmsg+0x2b0/0x3a0 [ 573.965800][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 573.965830][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 573.965851][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 573.965868][ C1] ? exc_page_fault+0x590/0x8c0 [ 573.965893][ C1] ? do_syscall_64+0xb6/0x230 [ 573.965909][ C1] do_syscall_64+0xf3/0x230 [ 573.965925][ C1] ? clear_bhb_loop+0x35/0x90 [ 573.965948][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 573.965966][ C1] RIP: 0033:0x7fbc77903df9 [ 573.966043][ 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 [ 573.966055][ C1] RSP: 002b:00007ffe3fa4c198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 573.966071][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbc77903df9 [ 573.966082][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 573.966091][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 573.966100][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 573.966110][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 573.966126][ C1] [ 573.966133][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.287 msecs [ 573.970371][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 573.970388][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00761-g3ec8d7572a69 #0 [ 573.970413][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.970427][ T30] Call Trace: [ 573.970437][ T30] [ 573.970446][ T30] dump_stack_lvl+0x241/0x360 [ 573.970478][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 573.970503][ T30] ? __pfx__printk+0x10/0x10 [ 573.970535][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 573.970569][ T30] ? vscnprintf+0x5d/0x90 [ 573.970599][ T30] panic+0x349/0x860 [ 573.970636][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 573.970666][ T30] ? __pfx_panic+0x10/0x10 [ 573.970697][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 573.970732][ T30] ? __irq_work_queue_local+0x137/0x410 [ 573.970759][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 573.970785][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 573.970830][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 573.970862][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 573.970896][ T30] watchdog+0x101d/0x1020 [ 573.970925][ T30] ? watchdog+0x1ea/0x1020 [ 573.970953][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.970978][ T30] kthread+0x2f0/0x390 [ 573.971007][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.971032][ T30] ? __pfx_kthread+0x10/0x10 [ 573.971062][ T30] ret_from_fork+0x4b/0x80 [ 573.971092][ T30] ? __pfx_kthread+0x10/0x10 [ 573.971120][ T30] ret_from_fork_asm+0x1a/0x30 [ 573.971169][ T30] [ 573.971591][ T30] Kernel Offset: disabled [ 574.780490][ T30] Rebooting in 86400 seconds..