DUID 00:04:70:54:fc:d0:2a:32:b7:62:cf:21:72:23:c9:95:e9:3f
forked to background, child pid 3174
[ 22.200100][ T3175] 8021q: adding VLAN 0 to HW filter on device bond0
[ 22.215055][ T3175] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 71.274002][ T13] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.244' (ED25519) to the list of known hosts.
executing program
[ 716.390864][ T27] INFO: task kworker/0:1:13 blocked for more than 143 seconds.
[ 716.398574][ T27] Not tainted 5.15.160-syzkaller #0
[ 716.405329][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.414431][ T27] task:kworker/0:1 state:D stack:22752 pid: 13 ppid: 2 flags:0x00004000
[ 716.424894][ T27] Workqueue: ipv6_addrconf addrconf_verify_work
[ 716.431449][ T27] Call Trace:
[ 716.434733][ T27]
[ 716.437664][ T27] __schedule+0x12c4/0x45b0
[ 716.442586][ T27] ? mark_lock+0x98/0x340
[ 716.446922][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 716.453305][ T27] ? release_firmware_map_entry+0x190/0x190
[ 716.459199][ T27] ? __mutex_trylock_common+0x8d/0x2e0
[ 716.464975][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 716.470176][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.475847][ T27] ? lockdep_hardirqs_on+0x94/0x130
[ 716.481253][ T27] schedule+0x11b/0x1f0
[ 716.485423][ T27] schedule_preempt_disabled+0xf/0x20
[ 716.491279][ T27] __mutex_lock_common+0xe34/0x25a0
[ 716.496501][ T27] ? addrconf_verify_work+0xa/0x20
[ 716.502041][ T27] ? mutex_lock_io_nested+0x60/0x60
[ 716.507247][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 716.513611][ T27] ? print_irqtrace_events+0x210/0x210
[ 716.519073][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 716.525307][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 716.530514][ T27] mutex_lock_nested+0x17/0x20
[ 716.535657][ T27] addrconf_verify_work+0xa/0x20
[ 716.540629][ T27] process_one_work+0x8a1/0x10c0
[ 716.545962][ T27] ? worker_detach_from_pool+0x260/0x260
[ 716.552045][ T27] ? _raw_spin_lock_irqsave+0x120/0x120
[ 716.557596][ T27] ? kthread_data+0x4e/0xc0
[ 716.562422][ T27] ? wq_worker_running+0x97/0x170
[ 716.567450][ T27] worker_thread+0xaca/0x1280
[ 716.572532][ T27] kthread+0x3f6/0x4f0
[ 716.576604][ T27] ? rcu_lock_release+0x20/0x20
[ 716.581768][ T27] ? kthread_blkcg+0xd0/0xd0
[ 716.586358][ T27] ret_from_fork+0x1f/0x30
[ 716.591134][ T27]
[ 716.594312][ T27]
[ 716.594312][ T27] Showing all locks held in the system:
[ 716.602506][ T27] 3 locks held by kworker/0:1/13:
[ 716.607525][ T27] #0: ffff88814aaf0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0
[ 716.618869][ T27] #1: ffffc90000d27d20 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0
[ 716.629534][ T27] #2: ffffffff8d9e7e48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20
[ 716.639222][ T27] 1 lock held by khungtaskd/27:
[ 716.644277][ T27] #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 716.653885][ T27] 2 locks held by getty/3258:
[ 716.658554][ T27] #0: ffff888024d30098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 716.668650][ T27] #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 716.679010][ T27] 1 lock held by syz-executor270/3529:
[ 716.684679][ T27]
[ 716.687003][ T27] =============================================
[ 716.687003][ T27]
[ 716.695819][ T27] NMI backtrace for cpu 0
[ 716.700149][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0
[ 716.708296][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 716.718348][ T27] Call Trace:
[ 716.721622][ T27]
[ 716.724547][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 716.729228][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 716.734857][ T27] ? panic+0x860/0x860
[ 716.738930][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 716.744037][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 716.749054][ T27] ? __wake_up_klogd+0xd5/0x100
[ 716.753907][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 716.760229][ T27] ? _printk+0xd1/0x120
[ 716.764816][ T27] ? panic+0x860/0x860
[ 716.768894][ T27] ? __wake_up_klogd+0xcc/0x100
[ 716.773741][ T27] ? panic+0x860/0x860
[ 716.777900][ T27] ? __rcu_read_unlock+0x92/0x100
[ 716.782918][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 716.788979][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 716.794956][ T27] watchdog+0xe72/0xeb0
[ 716.799136][ T27] kthread+0x3f6/0x4f0
[ 716.803285][ T27] ? hungtask_pm_notify+0x50/0x50
[ 716.808304][ T27] ? kthread_blkcg+0xd0/0xd0
[ 716.812983][ T27] ret_from_fork+0x1f/0x30
[ 716.817409][ T27]
[ 716.820482][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 716.825800][ C1] NMI backtrace for cpu 1
[ 716.825810][ C1] CPU: 1 PID: 3529 Comm: syz-executor270 Not tainted 5.15.160-syzkaller #0
[ 716.825825][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 716.825833][ C1] RIP: 0010:lock_is_held_type+0x10a/0x180
[ 716.825854][ C1] Code: c0 31 ed 44 39 f0 40 0f 94 c5 eb 05 bd 01 00 00 00 48 c7 c7 20 3c 8b 8a e8 83 11 00 00 b8 ff ff ff ff 65 0f c1 05 f6 87 e4 75 <83> f8 01 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02
[ 716.825865][ C1] RSP: 0018:ffffc900030f6558 EFLAGS: 00000057
[ 716.825878][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff88807900bb80
[ 716.825887][ C1] RDX: 0000000000000000 RSI: ffffffff8a8b3c20 RDI: ffffffff8ad8f6c0
[ 716.825897][ C1] RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffc900030f6780
[ 716.825906][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
[ 716.825916][ C1] R13: ffff88807900bb80 R14: 00000000ffffffff R15: ffffffff8c91fa60
[ 716.825926][ C1] FS: 0000555556ba4380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 716.825939][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.825948][ C1] CR2: 00005564ec658600 CR3: 000000007959a000 CR4: 00000000003506e0
[ 716.825962][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.825970][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.825978][ C1] Call Trace:
[ 716.825983][ C1]
[ 716.825988][ C1] ? nmi_cpu_backtrace+0x39f/0x4a0
[ 716.826004][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.826020][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 716.826035][ C1] ? unknown_nmi_error+0xd0/0xd0
[ 716.826056][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10
[ 716.826069][ C1] ? nmi_handle+0xf7/0x370
[ 716.826084][ C1] ? lock_is_held_type+0x10a/0x180
[ 716.826099][ C1] ? default_do_nmi+0x62/0x150
[ 716.826113][ C1] ? exc_nmi+0xa8/0x100
[ 716.826132][ C1] ? end_repeat_nmi+0x16/0x31
[ 716.826150][ C1] ? lock_is_held_type+0x10a/0x180
[ 716.826166][ C1] ? lock_is_held_type+0x10a/0x180
[ 716.826181][ C1] ? lock_is_held_type+0x10a/0x180
[ 716.826196][ C1]
[ 716.826200][ C1]
[ 716.826207][ C1] ___might_sleep+0xf1/0x6a0
[ 716.826224][ C1] ? __might_sleep+0xc0/0xc0
[ 716.826239][ C1] ? rcu_lock_release+0x20/0x20
[ 716.826255][ C1] ? tcf_idr_check_alloc+0x97/0x380
[ 716.826269][ C1] ? __lock_acquire+0x1ff0/0x1ff0
[ 716.826284][ C1] __mutex_lock_common+0xd4/0x25a0
[ 716.826304][ C1] ? __mutex_unlock_slowpath+0x218/0x750
[ 716.826318][ C1] ? tcf_idr_check_alloc+0xa1/0x380
[ 716.826332][ C1] ? mutex_lock_io_nested+0x60/0x60
[ 716.826351][ C1] ? tcf_idr_check_alloc+0xa1/0x380
[ 716.826364][ C1] ? radix_tree_lookup+0x234/0x280
[ 716.826379][ C1] mutex_lock_nested+0x17/0x20
[ 716.826393][ C1] tcf_idr_check_alloc+0xa1/0x380
[ 716.826409][ C1] tcf_police_init+0x294/0x17c0
[ 716.826423][ C1] ? netlink_rcv_skb+0x1cf/0x410
[ 716.826435][ C1] ? netlink_unicast+0x7b6/0x980
[ 716.826450][ C1] ? __se_sys_sendmsg+0x19a/0x260
[ 716.826471][ C1] ? tcf_police_search+0x40/0x40
[ 716.826495][ C1] ? tcf_action_init_1+0x226/0x7f0
[ 716.826508][ C1] ? nla_memcpy+0x56/0xb0
[ 716.826523][ C1] ? memcpy+0x3c/0x60
[ 716.826538][ C1] ? tcf_police_search+0x40/0x40
[ 716.826552][ C1] tcf_action_init_1+0x50f/0x7f0
[ 716.826570][ C1] ? tc_action_load_ops+0x550/0x550
[ 716.826583][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.826597][ C1] ? rcu_lock_release+0x5/0x20
[ 716.826621][ C1] tcf_action_init+0x2f3/0x750
[ 716.826637][ C1] ? tcf_action_init_1+0x7f0/0x7f0
[ 716.826663][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.826689][ C1] ? apparmor_capable+0x12e/0x190
[ 716.826706][ C1] ? __nla_parse+0x3c/0x50
[ 716.826721][ C1] tc_ctl_action+0x49b/0xd00
[ 716.826739][ C1] ? tcf_free_cookie_rcu+0x40/0x40
[ 716.826753][ C1] ? read_lock_is_recursive+0x10/0x10
[ 716.826791][ C1] ? tcf_free_cookie_rcu+0x40/0x40
[ 716.826805][ C1] rtnetlink_rcv_msg+0x993/0xee0
[ 716.826822][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.826839][ C1] ? rtnetlink_bind+0x80/0x80
[ 716.826853][ C1] ? stack_trace_save+0x1c0/0x1c0
[ 716.826869][ C1] ? __kernel_text_address+0x94/0x100
[ 716.826885][ C1] ? unwind_get_return_address+0x49/0x80
[ 716.826901][ C1] ? reacquire_held_locks+0x660/0x660
[ 716.826914][ C1] ? arch_stack_walk+0xf3/0x140
[ 716.826930][ C1] ? mark_lock+0x98/0x340
[ 716.826945][ C1] ? mark_lock+0x98/0x340
[ 716.826959][ C1] ? __lock_acquire+0x1295/0x1ff0
[ 716.826985][ C1] netlink_rcv_skb+0x1cf/0x410
[ 716.826998][ C1] ? rtnetlink_bind+0x80/0x80
[ 716.827014][ C1] ? netlink_ack+0xb10/0xb10
[ 716.827033][ C1] netlink_unicast+0x7b6/0x980
[ 716.827052][ C1] ? netlink_detachskb+0x90/0x90
[ 716.827067][ C1] ? __virt_addr_valid+0x39e/0x450
[ 716.827080][ C1] ? 0xffffffff81000000
[ 716.827090][ C1] ? __check_object_size+0x300/0x410
[ 716.827105][ C1] ? bpf_lsm_netlink_send+0x5/0x10
[ 716.827125][ C1] netlink_sendmsg+0xa30/0xd60
[ 716.827143][ C1] ? netlink_getsockopt+0x5b0/0x5b0
[ 716.827157][ C1] ? aa_sock_msg_perm+0x91/0x150
[ 716.827172][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10
[ 716.827185][ C1] ? security_socket_sendmsg+0x7d/0xa0
[ 716.827199][ C1] ? netlink_getsockopt+0x5b0/0x5b0
[ 716.827213][ C1] ____sys_sendmsg+0x59e/0x8f0
[ 716.827227][ C1] ? iovec_from_user+0x300/0x390
[ 716.827246][ C1] ? __sys_sendmsg_sock+0x30/0x30
[ 716.827268][ C1] ___sys_sendmsg+0x252/0x2e0
[ 716.827285][ C1] ? __sys_sendmsg+0x260/0x260
[ 716.827302][ C1] ? __lock_acquire+0x1295/0x1ff0
[ 716.827328][ C1] ? __context_tracking_enter+0x5f/0x90
[ 716.827344][ C1] ? __context_tracking_exit+0x4c/0x80
[ 716.827359][ C1] ? __fdget+0x158/0x220
[ 716.827376][ C1] __se_sys_sendmsg+0x19a/0x260
[ 716.827392][ C1] ? __x64_sys_sendmsg+0x80/0x80
[ 716.827412][ C1] ? syscall_enter_from_user_mode+0x2e/0x240
[ 716.827427][ C1] ? lockdep_hardirqs_on+0x94/0x130
[ 716.827443][ C1] ? syscall_enter_from_user_mode+0x2e/0x240
[ 716.827460][ C1] do_syscall_64+0x3b/0xb0
[ 716.827473][ C1] ? clear_bhb_loop+0x15/0x70
[ 716.827486][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 716.827500][ C1] RIP: 0033:0x7fc59b7c7df9
[ 716.827514][ 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
[ 716.827524][ C1] RSP: 002b:00007ffd9dbfa888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 716.827537][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc59b7c7df9
[ 716.827547][ C1] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
[ 716.827555][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006
[ 716.827563][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 716.827571][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[ 716.827585][ C1]
[ 716.827591][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.791 msecs
[ 716.841476][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.520296][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.160-syzkaller #0
[ 717.528268][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 717.538313][ T27] Call Trace:
[ 717.541586][ T27]
[ 717.544510][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 717.549191][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 717.554857][ T27] ? panic+0x860/0x860
[ 717.558934][ T27] panic+0x318/0x860
[ 717.562825][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 717.568453][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 717.574603][ T27] ? fb_is_primary_device+0xd0/0xd0
[ 717.579795][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 717.585861][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 717.592007][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0
[ 717.598151][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0
[ 717.604298][ T27] watchdog+0xeb0/0xeb0
[ 717.608460][ T27] kthread+0x3f6/0x4f0
[ 717.612520][ T27] ? hungtask_pm_notify+0x50/0x50
[ 717.617543][ T27] ? kthread_blkcg+0xd0/0xd0
[ 717.622126][ T27] ret_from_fork+0x1f/0x30
[ 717.626586][ T27]
[ 717.629692][ T27] Kernel Offset: disabled
[ 717.634010][ T27] Rebooting in 86400 seconds..