Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts. executing program [ 716.339320][ T27] INFO: task kworker/1:3:1279 blocked for more than 143 seconds. [ 716.347192][ T27] Not tainted 5.15.161-syzkaller #0 [ 716.353663][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.362725][ T27] task:kworker/1:3 state:D stack:23736 pid: 1279 ppid: 2 flags:0x00004000 [ 716.372180][ T27] Workqueue: ipv6_addrconf addrconf_verify_work [ 716.378455][ T27] Call Trace: [ 716.382098][ T27] [ 716.385031][ T27] __schedule+0x12c4/0x45b0 [ 716.389845][ T27] ? mark_lock+0x98/0x340 [ 716.394191][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 716.400561][ T27] ? release_firmware_map_entry+0x190/0x190 [ 716.406459][ T27] ? __mutex_trylock_common+0x8d/0x2e0 [ 716.412209][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 716.417412][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.422968][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 716.428171][ T27] schedule+0x11b/0x1f0 [ 716.432617][ T27] schedule_preempt_disabled+0xf/0x20 [ 716.437986][ T27] __mutex_lock_common+0xe34/0x25a0 [ 716.443536][ T27] ? addrconf_verify_work+0xa/0x20 [ 716.448648][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 716.454119][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 716.460361][ T27] ? print_irqtrace_events+0x210/0x210 [ 716.465819][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.472057][ T27] ? do_raw_spin_unlock+0x137/0x8b0 [ 716.477260][ T27] mutex_lock_nested+0x17/0x20 [ 716.482390][ T27] addrconf_verify_work+0xa/0x20 [ 716.487334][ T27] process_one_work+0x8a1/0x10c0 [ 716.492609][ T27] ? worker_detach_from_pool+0x260/0x260 [ 716.498423][ T27] ? _raw_spin_lock_irqsave+0x120/0x120 [ 716.504316][ T27] ? kthread_data+0x4e/0xc0 [ 716.508820][ T27] ? wq_worker_running+0x97/0x170 [ 716.514151][ T27] worker_thread+0xaca/0x1280 [ 716.518828][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.525101][ T27] kthread+0x3f6/0x4f0 [ 716.529455][ T27] ? rcu_lock_release+0x20/0x20 [ 716.534301][ T27] ? kthread_blkcg+0xd0/0xd0 [ 716.538883][ T27] ret_from_fork+0x1f/0x30 [ 716.543756][ T27] [ 716.546870][ T27] [ 716.546870][ T27] Showing all locks held in the system: [ 716.554988][ T27] 1 lock held by khungtaskd/27: [ 716.560047][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 716.569705][ T27] 3 locks held by kworker/1:3/1279: [ 716.574897][ T27] #0: ffff88802360b538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 716.586202][ T27] #1: ffffc9000547fd20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 716.597658][ T27] #2: ffffffff8d9e8348 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 716.607454][ T27] 2 locks held by getty/3258: [ 716.612344][ T27] #0: ffff88807e938098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 716.622372][ T27] #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 716.632695][ T27] 1 lock held by syz-executor335/3530: [ 716.638144][ T27] [ 716.641160][ T27] ============================================= [ 716.641160][ T27] [ 716.649860][ T27] NMI backtrace for cpu 0 [ 716.654188][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.161-syzkaller #0 [ 716.662153][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 716.672195][ T27] Call Trace: [ 716.675462][ T27] [ 716.678379][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 716.683056][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 716.688680][ T27] ? panic+0x860/0x860 [ 716.692744][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 716.697852][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 716.702778][ T27] ? __wake_up_klogd+0xd5/0x100 [ 716.707626][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 716.713768][ T27] ? _printk+0xd1/0x120 [ 716.717915][ T27] ? panic+0x860/0x860 [ 716.721974][ T27] ? __wake_up_klogd+0xcc/0x100 [ 716.726815][ T27] ? panic+0x860/0x860 [ 716.730875][ T27] ? __rcu_read_unlock+0x92/0x100 [ 716.735889][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 716.742032][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 716.748003][ T27] watchdog+0xe72/0xeb0 [ 716.752161][ T27] kthread+0x3f6/0x4f0 [ 716.756218][ T27] ? hungtask_pm_notify+0x50/0x50 [ 716.761232][ T27] ? kthread_blkcg+0xd0/0xd0 [ 716.765824][ T27] ret_from_fork+0x1f/0x30 [ 716.770266][ T27] [ 716.773383][ T27] Sending NMI from CPU 0 to CPUs 1: [ 716.778598][ C1] NMI backtrace for cpu 1 [ 716.778613][ C1] CPU: 1 PID: 3530 Comm: syz-executor335 Not tainted 5.15.161-syzkaller #0 [ 716.778629][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 716.778639][ C1] RIP: 0010:__lock_acquire+0x1295/0x1ff0 [ 716.778658][ C1] Code: 10 00 74 08 48 89 df e8 99 67 67 00 48 83 3b 00 0f 84 a5 03 00 00 4c 89 f7 48 8b 74 24 08 8b 54 24 2c 48 89 e9 e8 8b 9f 00 00 <31> f6 85 c0 0f 84 a8 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b [ 716.778669][ C1] RSP: 0018:ffffc90002eb6480 EFLAGS: 00000046 [ 716.778682][ C1] RAX: 0000000000000001 RBX: ffffffff8f93bec0 RCX: ffffffff81636252 [ 716.778692][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fbf9188 [ 716.778701][ C1] RBP: 83e8343fbcdf6e0b R08: dffffc0000000000 R09: fffffbfff1f7f232 [ 716.778711][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 716.778720][ C1] R13: ffff888020bee428 R14: ffff888020bed940 R15: ffff888020bee478 [ 716.778730][ C1] FS: 0000555557159380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 716.778742][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.778752][ C1] CR2: 000055a552815728 CR3: 000000006f816000 CR4: 00000000003506e0 [ 716.778764][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.778772][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.778781][ C1] Call Trace: [ 716.778786][ C1] [ 716.778792][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 716.778808][ C1] ? read_lock_is_recursive+0x10/0x10 [ 716.778821][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 716.778841][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 716.778854][ C1] ? nmi_handle+0xf7/0x370 [ 716.778869][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.778881][ C1] ? default_do_nmi+0x62/0x150 [ 716.778896][ C1] ? exc_nmi+0xa8/0x100 [ 716.778909][ C1] ? end_repeat_nmi+0x16/0x31 [ 716.778925][ C1] ? validate_chain+0x112/0x5930 [ 716.778938][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.778951][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.778963][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.778976][ C1] [ 716.778979][ C1] [ 716.778988][ C1] lock_acquire+0x1db/0x4f0 [ 716.779000][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 716.779017][ C1] ? read_lock_is_recursive+0x10/0x10 [ 716.779030][ C1] ? __might_sleep+0xc0/0xc0 [ 716.779045][ C1] ? rcu_lock_release+0x20/0x20 [ 716.779075][ C1] ? tcf_idr_check_alloc+0x97/0x380 [ 716.779088][ C1] ? __lock_acquire+0x1ff0/0x1ff0 [ 716.779103][ C1] __mutex_lock_common+0x1da/0x25a0 [ 716.779117][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 716.779132][ C1] ? __mutex_unlock_slowpath+0x218/0x750 [ 716.779146][ C1] ? tcf_idr_check_alloc+0xa1/0x380 [ 716.779159][ C1] ? mutex_lock_io_nested+0x60/0x60 [ 716.779176][ C1] ? radix_tree_lookup+0x234/0x280 [ 716.779191][ C1] mutex_lock_nested+0x17/0x20 [ 716.779204][ C1] tcf_idr_check_alloc+0xa1/0x380 [ 716.779219][ C1] tcf_police_init+0x294/0x17c0 [ 716.779232][ C1] ? netlink_rcv_skb+0x1cf/0x410 [ 716.779244][ C1] ? netlink_unicast+0x7b6/0x980 [ 716.779259][ C1] ? __se_sys_sendmsg+0x19a/0x260 [ 716.779277][ C1] ? tcf_police_search+0x40/0x40 [ 716.779297][ C1] ? tcf_action_init_1+0x226/0x7f0 [ 716.779310][ C1] ? nla_memcpy+0x56/0xb0 [ 716.779324][ C1] ? memcpy+0x3c/0x60 [ 716.779338][ C1] ? tcf_police_search+0x40/0x40 [ 716.779352][ C1] tcf_action_init_1+0x50f/0x7f0 [ 716.779368][ C1] ? tc_action_load_ops+0x550/0x550 [ 716.779381][ C1] ? read_lock_is_recursive+0x10/0x10 [ 716.779399][ C1] ? rcu_lock_release+0x5/0x20 [ 716.779418][ C1] tcf_action_init+0x2f3/0x750 [ 716.779434][ C1] ? tcf_action_init_1+0x7f0/0x7f0 [ 716.779455][ C1] ? reacquire_held_locks+0x660/0x660 [ 716.779476][ C1] ? apparmor_capable+0x12e/0x190 [ 716.779491][ C1] ? __nla_parse+0x3c/0x50 [ 716.779505][ C1] tc_ctl_action+0x49b/0xd00 [ 716.779522][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 716.779535][ C1] ? read_lock_is_recursive+0x10/0x10 [ 716.779564][ C1] ? tcf_free_cookie_rcu+0x40/0x40 [ 716.779578][ C1] rtnetlink_rcv_msg+0x993/0xee0 [ 716.779594][ C1] ? reacquire_held_locks+0x660/0x660 [ 716.779609][ C1] ? rtnetlink_bind+0x80/0x80 [ 716.779623][ C1] ? stack_trace_save+0x1c0/0x1c0 [ 716.779637][ C1] ? __kernel_text_address+0x94/0x100 [ 716.779653][ C1] ? unwind_get_return_address+0x49/0x80 [ 716.779668][ C1] ? reacquire_held_locks+0x660/0x660 [ 716.779681][ C1] ? arch_stack_walk+0xf3/0x140 [ 716.779696][ C1] ? mark_lock+0x98/0x340 [ 716.779709][ C1] ? mark_lock+0x98/0x340 [ 716.779722][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.779743][ C1] netlink_rcv_skb+0x1cf/0x410 [ 716.779756][ C1] ? rtnetlink_bind+0x80/0x80 [ 716.779771][ C1] ? netlink_ack+0xb10/0xb10 [ 716.779787][ C1] netlink_unicast+0x7b6/0x980 [ 716.779804][ C1] ? netlink_detachskb+0x90/0x90 [ 716.779818][ C1] ? __virt_addr_valid+0x39e/0x450 [ 716.779830][ C1] ? 0xffffffff81000000 [ 716.779840][ C1] ? __check_object_size+0x300/0x410 [ 716.779856][ C1] ? bpf_lsm_netlink_send+0x5/0x10 [ 716.779870][ C1] netlink_sendmsg+0xa30/0xd60 [ 716.779886][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 716.779899][ C1] ? aa_sock_msg_perm+0x91/0x150 [ 716.779913][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 716.779925][ C1] ? security_socket_sendmsg+0x7d/0xa0 [ 716.779938][ C1] ? netlink_getsockopt+0x5b0/0x5b0 [ 716.779951][ C1] ____sys_sendmsg+0x59e/0x8f0 [ 716.779965][ C1] ? iovec_from_user+0x300/0x390 [ 716.779982][ C1] ? __sys_sendmsg_sock+0x30/0x30 [ 716.780001][ C1] ___sys_sendmsg+0x252/0x2e0 [ 716.780017][ C1] ? __sys_sendmsg+0x260/0x260 [ 716.780032][ C1] ? __lock_acquire+0x1295/0x1ff0 [ 716.780053][ C1] ? __context_tracking_enter+0x5f/0x90 [ 716.780068][ C1] ? __context_tracking_exit+0x4c/0x80 [ 716.780083][ C1] ? __fdget+0x158/0x220 [ 716.780098][ C1] __se_sys_sendmsg+0x19a/0x260 [ 716.780113][ C1] ? __x64_sys_sendmsg+0x80/0x80 [ 716.780130][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 716.780145][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 716.780160][ C1] ? syscall_enter_from_user_mode+0x2e/0x240 [ 716.780175][ C1] do_syscall_64+0x3b/0xb0 [ 716.780188][ C1] ? clear_bhb_loop+0x15/0x70 [ 716.780201][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 716.780215][ C1] RIP: 0033:0x7f44d36acdf9 [ 716.780228][ 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 [ 716.780238][ C1] RSP: 002b:00007fff311b15c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 716.780252][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f44d36acdf9 [ 716.780261][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 716.780269][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 716.780277][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 716.780286][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 716.780298][ C1] [ 716.780304][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.706 msecs [ 716.792479][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 717.479290][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.161-syzkaller #0 [ 717.487262][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 717.497397][ T27] Call Trace: [ 717.500671][ T27] [ 717.503680][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 717.508354][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 717.513978][ T27] ? panic+0x860/0x860 [ 717.518051][ T27] panic+0x318/0x860 [ 717.521939][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 717.527562][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 717.533706][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 717.538899][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 717.544958][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 717.551104][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 717.557342][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 717.563583][ T27] watchdog+0xeb0/0xeb0 [ 717.567750][ T27] kthread+0x3f6/0x4f0 [ 717.571810][ T27] ? hungtask_pm_notify+0x50/0x50 [ 717.576827][ T27] ? kthread_blkcg+0xd0/0xd0 [ 717.581410][ T27] ret_from_fork+0x1f/0x30 [ 717.585833][ T27] [ 717.588927][ T27] Kernel Offset: disabled [ 717.593251][ T27] Rebooting in 86400 seconds..