Warning: Permanently added '10.128.1.70' (ED25519) to the list of known hosts. executing program [ 716.280365][ T27] INFO: task kworker/0:3:1301 blocked for more than 143 seconds. [ 716.288246][ T27] Not tainted 5.15.160-syzkaller #0 [ 716.294324][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.303167][ T27] task:kworker/0:3 state:D stack:24640 pid: 1301 ppid: 2 flags:0x00004000 [ 716.312732][ T27] Workqueue: ipv6_addrconf addrconf_verify_work [ 716.319004][ T27] Call Trace: [ 716.322478][ T27] [ 716.325419][ T27] __schedule+0x12c4/0x45b0 [ 716.329937][ T27] ? mark_lock+0x98/0x340 [ 716.334507][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 716.340636][ T27] ? release_firmware_map_entry+0x190/0x190 [ 716.346525][ T27] ? __mutex_trylock_common+0x8d/0x2e0 [ 716.352161][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 716.357362][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.362726][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 716.367932][ T27] schedule+0x11b/0x1f0 [ 716.372253][ T27] schedule_preempt_disabled+0xf/0x20 [ 716.377623][ T27] __mutex_lock_common+0xe34/0x25a0 [ 716.382995][ T27] ? addrconf_verify_work+0xa/0x20 [ 716.388115][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 716.393617][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 716.399604][ T27] ? print_irqtrace_events+0x210/0x210 [ 716.405468][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.411515][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 716.416721][ T27] mutex_lock_nested+0x17/0x20 [ 716.421650][ T27] addrconf_verify_work+0xa/0x20 [ 716.426582][ T27] process_one_work+0x8a1/0x10c0 [ 716.431702][ T27] ? worker_detach_from_pool+0x260/0x260 [ 716.437337][ T27] ? _raw_spin_lock_irqsave+0x120/0x120 [ 716.443091][ T27] ? kthread_data+0x4e/0xc0 [ 716.447593][ T27] ? wq_worker_running+0x97/0x170 [ 716.452787][ T27] worker_thread+0xaca/0x1280 [ 716.457464][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.463588][ T27] kthread+0x3f6/0x4f0 [ 716.467657][ T27] ? rcu_lock_release+0x20/0x20 [ 716.472674][ T27] ? kthread_blkcg+0xd0/0xd0 [ 716.477262][ T27] ret_from_fork+0x1f/0x30 [ 716.481925][ T27] [ 716.485031][ T27] [ 716.485031][ T27] Showing all locks held in the system: [ 716.492963][ T27] 1 lock held by khungtaskd/27: [ 716.497804][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 716.507320][ T27] 3 locks held by kworker/0:3/1301: [ 716.512643][ T27] #0: ffff888023500138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 716.523758][ T27] #1: ffffc90004e9fd20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 716.534187][ T27] #2: ffffffff8d9e7e48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 716.543736][ T27] 1 lock held by syslogd/2944: [ 716.548486][ T27] #0: ffff8880b9a3a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 [ 716.558589][ T27] 2 locks held by getty/3260: [ 716.563390][ T27] #0: ffff88814b217098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 716.573281][ T27] #1: ffffc90002bad2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 716.583529][ T27] 2 locks held by syz-executor338/3534: [ 716.589069][ T27] [ 716.591681][ T27] ============================================= [ 716.591681][ T27] [ 716.600093][ T27] NMI backtrace for cpu 1 [ 716.604415][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0 [ 716.612386][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 716.622438][ T27] Call Trace: [ 716.625706][ T27] [ 716.628626][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 716.633299][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 716.639009][ T27] ? panic+0x860/0x860 [ 716.643161][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 716.648267][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 716.653194][ T27] ? __wake_up_klogd+0xd5/0x100 [ 716.658041][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 716.664182][ T27] ? _printk+0xd1/0x120 [ 716.668328][ T27] ? panic+0x860/0x860 [ 716.672390][ T27] ? __wake_up_klogd+0xcc/0x100 [ 716.677234][ T27] ? panic+0x860/0x860 [ 716.681294][ T27] ? __rcu_read_unlock+0x92/0x100 [ 716.686310][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 716.692368][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 716.698339][ T27] watchdog+0xe72/0xeb0 [ 716.702495][ T27] kthread+0x3f6/0x4f0 [ 716.706551][ T27] ? hungtask_pm_notify+0x50/0x50 [ 716.711563][ T27] ? kthread_blkcg+0xd0/0xd0 [ 716.716140][ T27] ret_from_fork+0x1f/0x30 [ 716.720560][ T27] [ 716.723626][ T27] Sending NMI from CPU 1 to CPUs 0: [ 716.728831][ C0] NMI backtrace for cpu 0 [ 716.728839][ C0] CPU: 0 PID: 3534 Comm: syz-executor338 Not tainted 5.15.160-syzkaller #0 [ 716.728854][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 716.728862][ C0] RIP: 0010:kasan_check_range+0x3/0x290 [ 716.728880][ C0] Code: 48 89 c7 e8 7f 65 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 [ 716.728890][ C0] RSP: 0018:ffffc90002f065e8 EFLAGS: 00000246 [ 716.728903][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8162d268 [ 716.728913][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8de46668 [ 716.728921][ C0] RBP: ffffc90002f06730 R08: ffffffff842c880d R09: fffff520005e0cc9 [ 716.728932][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005e0ccc [ 716.728942][ C0] R13: ffffffff8858fac7 R14: ffff88814a864400 R15: dffffc0000000000 [ 716.728952][ C0] FS: 000055555650f380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 716.728964][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.728974][ C0] CR2: 00007ffd117fd3f8 CR3: 0000000012acd000 CR4: 00000000003506f0 [ 716.728986][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.728995][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.729003][ C0] Call Trace: [ 716.729007][ C0] [ 716.729012][ C0] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 716.729027][ C0] ? read_lock_is_recursive+0x10/0x10 [ 716.729042][ C0] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 716.729057][ C0] ? unknown_nmi_error+0xd0/0xd0 [ 716.729078][ C0] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 716.729092][ C0] ? nmi_handle+0xf7/0x370 [ 716.729107][ C0] ? kasan_check_range+0x3/0x290 [ 716.729120][ C0] ? default_do_nmi+0x62/0x150 [ 716.729135][ C0] ? exc_nmi+0xa8/0x100 [ 716.729149][ C0] ? end_repeat_nmi+0x16/0x31 [ 716.729163][ C0] ? tcf_idr_check_alloc+0x97/0x380 [ 716.729179][ C0] ? radix_tree_lookup+0x15d/0x280 [ 716.729192][ C0] ? lock_release+0xa8/0x9a0 [ 716.729205][ C0] ? kasan_check_range+0x3/0x290 [ 716.729218][ C0] ? kasan_check_range+0x3/0x290 [ 716.729232][ C0] ? kasan_check_range+0x3/0x290 [ 716.729245][ C0] [ 716.729249][ C0] [ 716.729254][ C0] lock_release+0xa8/0x9a0 [ 716.729267][ C0] ? rcu_lock_release+0x20/0x20 [ 716.729283][ C0] ? tcf_idr_check_alloc+0x97/0x380 [ 716.729297][ C0] ? __lock_acquire+0x1ff0/0x1ff0 [ 716.729312][ C0] ? __mutex_lock_common+0x444/0x25a0 [ 716.729329][ C0] ? print_irqtrace_events+0x210/0x210 [ 716.729343][ C0] ? tcf_idr_check_alloc+0x97/0x380 [ 716.729356][ C0] __mutex_unlock_slowpath+0xde/0x750 [ 716.729371][ C0] ? tcf_idr_check_alloc+0xa1/0x380 [ 716.729386][ C0] ? mutex_lock_io_nested+0x60/0x60 [ 716.729400][ C0] ? mutex_unlock+0x10/0x10 [ 716.729417][ C0] ? radix_tree_lookup+0x234/0x280 [ 716.729433][ C0] tcf_idr_check_alloc+0x97/0x380 [ 716.729449][ C0] tcf_police_init+0x294/0x17c0 [ 716.729462][ C0] ? netlink_rcv_skb+0x1cf/0x410 [ 716.729474][ C0] ? netlink_unicast+0x7b6/0x980 [ 716.729490][ C0] ? __se_sys_sendmsg+0x19a/0x260 [ 716.729510][ C0] ? tcf_police_search+0x40/0x40 [ 716.729534][ C0] ? tcf_action_init_1+0x226/0x7f0 [ 716.729547][ C0] ? nla_memcpy+0x56/0xb0 [ 716.729563][ C0] ? memcpy+0x3c/0x60 [ 716.729577][ C0] ? tcf_police_search+0x40/0x40 [ 716.729591][ C0] tcf_action_init_1+0x50f/0x7f0 [ 716.729609][ C0] ? tc_action_load_ops+0x550/0x550 [ 716.729623][ C0] ? read_lock_is_recursive+0x10/0x10 [ 716.729636][ C0] ? rcu_lock_release+0x5/0x20 [ 716.729660][ C0] tcf_action_init+0x2f3/0x750 [ 716.729681][ C0] ? tcf_action_init_1+0x7f0/0x7f0 [ 716.729707][ C0] ? reacquire_held_locks+0x660/0x660 [ 716.729732][ C0] ? apparmor_capable+0x12e/0x190 [ 716.729748][ C0] ? __nla_parse+0x3c/0x50 [ 716.729764][ C0] tc_ctl_action+0x49b/0xd00 [ 716.729782][ C0] ? tcf_free_cookie_rcu+0x40/0x40 [ 716.729796][ C0] ? read_lock_is_recursive+0x10/0x10 [ 716.729834][ C0] ? tcf_free_cookie_rcu+0x40/0x40 [ 716.729849][ C0] rtnetlink_rcv_msg+0x993/0xee0 [ 716.729864][ C0] ? reacquire_held_locks+0x660/0x660 [ 716.729881][ C0] ? rtnetlink_bind+0x80/0x80 [ 716.729896][ C0] ? stack_trace_save+0x1c0/0x1c0 [ 716.729911][ C0] ? __kernel_text_address+0x94/0x100 [ 716.729927][ C0] ? unwind_get_return_address+0x49/0x80 [ 716.729944][ C0] ? reacquire_held_locks+0x660/0x660 [ 716.729957][ C0] ? arch_stack_walk+0xf3/0x140 [ 716.729973][ C0] ? mark_lock+0x98/0x340 [ 716.729988][ C0] ? mark_lock+0x98/0x340 [ 716.730002][ C0] ? __lock_acquire+0x1295/0x1ff0 [ 716.730027][ C0] netlink_rcv_skb+0x1cf/0x410 [ 716.730041][ C0] ? rtnetlink_bind+0x80/0x80 [ 716.730057][ C0] ? netlink_ack+0xb10/0xb10 [ 716.730076][ C0] netlink_unicast+0x7b6/0x980 [ 716.730095][ C0] ? netlink_detachskb+0x90/0x90 [ 716.730110][ C0] ? __virt_addr_valid+0x39e/0x450 [ 716.730123][ C0] ? 0xffffffff81000000 [ 716.730133][ C0] ? __check_object_size+0x300/0x410 [ 716.730149][ C0] ? bpf_lsm_netlink_send+0x5/0x10 [ 716.730167][ C0] netlink_sendmsg+0xa30/0xd60 [ 716.730185][ C0] ? netlink_getsockopt+0x5b0/0x5b0 [ 716.730199][ C0] ? aa_sock_msg_perm+0x91/0x150 [ 716.730214][ C0] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 716.730227][ C0] ? security_socket_sendmsg+0x7d/0xa0 [ 716.730240][ C0] ? netlink_getsockopt+0x5b0/0x5b0 [ 716.730254][ C0] ____sys_sendmsg+0x59e/0x8f0 [ 716.730270][ C0] ? iovec_from_user+0x300/0x390 [ 716.730288][ C0] ? __sys_sendmsg_sock+0x30/0x30 [ 716.730310][ C0] ___sys_sendmsg+0x252/0x2e0 [ 716.730328][ C0] ? __sys_sendmsg+0x260/0x260 [ 716.730344][ C0] ? __lock_acquire+0x1295/0x1ff0 [ 716.730370][ C0] ? __context_tracking_enter+0x5f/0x90 [ 716.730386][ C0] ? __context_tracking_exit+0x4c/0x80 [ 716.730402][ C0] ? __fdget+0x158/0x220 [ 716.730417][ C0] __se_sys_sendmsg+0x19a/0x260 [ 716.730434][ C0] ? __x64_sys_sendmsg+0x80/0x80 [ 716.730453][ C0] ? syscall_enter_from_user_mode+0x2e/0x240 [ 716.730469][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 716.730484][ C0] ? syscall_enter_from_user_mode+0x2e/0x240 [ 716.730501][ C0] do_syscall_64+0x3b/0xb0 [ 716.730514][ C0] ? clear_bhb_loop+0x15/0x70 [ 716.730527][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 716.730541][ C0] RIP: 0033:0x7f466c2ecdf9 [ 716.730554][ C0] 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 [ 716.730564][ C0] RSP: 002b:00007ffe6ef03348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 716.730578][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f466c2ecdf9 [ 716.730587][ C0] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 716.730596][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 716.730604][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 716.730612][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 716.730626][ C0] [ 716.730632][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.800 msecs [ 716.731382][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 717.433724][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0 [ 717.441698][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 717.451827][ T27] Call Trace: [ 717.455101][ T27] [ 717.458021][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 717.462697][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 717.468325][ T27] ? panic+0x860/0x860 [ 717.472400][ T27] panic+0x318/0x860 [ 717.476289][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 717.481912][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 717.488058][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 717.493251][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 717.499313][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 717.505454][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 717.511601][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 717.517744][ T27] watchdog+0xeb0/0xeb0 [ 717.521901][ T27] kthread+0x3f6/0x4f0 [ 717.525961][ T27] ? hungtask_pm_notify+0x50/0x50 [ 717.530973][ T27] ? kthread_blkcg+0xd0/0xd0 [ 717.535553][ T27] ret_from_fork+0x1f/0x30 [ 717.539973][ T27] [ 717.543170][ T27] Kernel Offset: disabled [ 717.547486][ T27] Rebooting in 86400 seconds..