forked to background, child pid 3184
no interfaces have a carrier
[   23.208162][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0
[   23.217992][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   70.594996][   T14] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts.
executing program
[  490.623625][ T3646] nbd0: detected capacity change from 0 to 10
[  490.741764][ T3643] block nbd0: shutting down sockets
[  521.151676][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 30 seconds
[  550.704346][ T2972] udevd[2972]: worker [3645] /devices/virtual/block/nbd0 is taking a long time
[  551.231601][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 60 seconds
[  581.311646][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 90 seconds
[  611.391607][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 120 seconds
[  641.471596][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 150 seconds
executing program
[  670.868953][ T2972] udevd[2972]: worker [3645] /devices/virtual/block/nbd0 timeout; kill it
[  670.878235][ T2972] udevd[2972]: seq 7475 '/devices/virtual/block/nbd0' killed
[  670.878283][ T3645] ldm_validate_partition_table(): Disk read failed.
[  670.892353][ T3645] Dev nbd0: unable to read RDB block 0
[  670.897793][ T3645]  nbd0: unable to read partition table
[  670.903493][ T3645] nbd0: partition table beyond EOD, truncated
[  670.915387][ T2972] udevd[2972]: worker [3645] terminated by signal 9 (Killed)
[  670.922943][ T2972] udevd[2972]: worker [3645] failed while handling '/devices/virtual/block/nbd0'
[  671.551609][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 180 seconds
[  701.631672][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 210 seconds
[  731.711677][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 240 seconds
[  761.791651][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 270 seconds
[  791.871620][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 300 seconds
[  821.951623][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 330 seconds
[  852.031690][   T52] block nbd0: Possible stuck request ffff88801df70000: control (read@0,4096B). Runtime 360 seconds
[  859.071659][   T28] INFO: task syz-executor411:3654 blocked for more than 143 seconds.
[  859.079903][   T28]       Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  859.087525][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  859.096249][   T28] task:syz-executor411 state:D stack:28456 pid: 3654 ppid:  3641 flags:0x00000004
[  859.105528][   T28] Call Trace:
[  859.108820][   T28]  <TASK>
[  859.111801][   T28]  __schedule+0xadf/0x52b0
[  859.116277][   T28]  ? io_schedule_timeout+0x140/0x140
[  859.121785][   T28]  ? _raw_spin_unlock_irqrestore+0x50/0x70
[  859.127610][   T28]  ? _raw_spin_unlock_irqrestore+0x50/0x70
[  859.133553][   T28]  schedule+0xda/0x1b0
[  859.137641][   T28]  blk_mq_freeze_queue_wait+0x112/0x160
[  859.143236][   T28]  ? blk_mq_queue_inflight+0xa0/0xa0
[  859.148540][   T28]  ? blk_mq_run_hw_queue+0x490/0x490
[  859.153862][   T28]  ? prepare_to_wait_exclusive+0x2b0/0x2b0
[  859.159687][   T28]  nbd_add_socket+0x166/0x810
[  859.164471][   T28]  ? apparmor_capable+0x1d8/0x460
[  859.169522][   T28]  ? nbd_alloc_config.part.0+0x180/0x180
[  859.175279][   T28]  ? bpf_lsm_capable+0x5/0x10
[  859.180088][   T28]  ? security_capable+0x8f/0xc0
[  859.185093][   T28]  nbd_ioctl+0x4ab/0xbd0
[  859.189355][   T28]  ? blkdev_bszset+0x1f0/0x1f0
[  859.194161][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.199197][   T28]  ? __ct_user_exit+0xff/0x150
[  859.204015][   T28]  ? lock_downgrade+0x6e0/0x6e0
[  859.208975][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.214057][   T28]  blkdev_ioctl+0x36e/0x800
[  859.218589][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.224146][   T28]  ? bpf_lsm_file_ioctl+0x5/0x10
[  859.229111][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.234633][   T28]  __x64_sys_ioctl+0x193/0x200
[  859.239504][   T28]  do_syscall_64+0x35/0xb0
[  859.243978][   T28]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  859.249975][   T28] RIP: 0033:0x7f6e450cdee9
[  859.254624][   T28] RSP: 002b:00007f6e4507b308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  859.263093][   T28] RAX: ffffffffffffffda RBX: 00007f6e45151408 RCX: 00007f6e450cdee9
[  859.271058][   T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[  859.279062][   T28] RBP: 00007f6e45151400 R08: 0000000000000000 R09: 0000000000000000
[  859.287094][   T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6e4515140c
[  859.295133][   T28] R13: 00007f6e4511f074 R14: 64626e2f7665642f R15: 0000000000022000
[  859.303416][   T28]  </TASK>
[  859.306438][   T28] INFO: task syz-executor411:3655 blocked for more than 143 seconds.
[  859.314580][   T28]       Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  859.322198][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  859.331059][   T28] task:syz-executor411 state:D stack:29536 pid: 3655 ppid:  3641 flags:0x00000004
[  859.340305][   T28] Call Trace:
[  859.343655][   T28]  <TASK>
[  859.346598][   T28]  __schedule+0xadf/0x52b0
[  859.351012][   T28]  ? io_schedule_timeout+0x140/0x140
[  859.356335][   T28]  schedule+0xda/0x1b0
[  859.360437][   T28]  schedule_preempt_disabled+0xf/0x20
[  859.365889][   T28]  __mutex_lock+0xa44/0x1350
[  859.370763][   T28]  ? nbd_ioctl+0x151/0xbd0
[  859.375488][   T28]  ? mutex_lock_io_nested+0x1190/0x1190
[  859.381056][   T28]  ? tomoyo_execute_permission+0x4a0/0x4a0
[  859.386924][   T28]  ? bpf_lsm_capable+0x5/0x10
[  859.391666][   T28]  ? security_capable+0x8f/0xc0
[  859.396526][   T28]  nbd_ioctl+0x151/0xbd0
[  859.400759][   T28]  ? blkdev_bszset+0x1f0/0x1f0
[  859.405580][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.410625][   T28]  ? __ct_user_exit+0xff/0x150
[  859.415434][   T28]  ? lock_downgrade+0x6e0/0x6e0
[  859.420299][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.425405][   T28]  blkdev_ioctl+0x36e/0x800
[  859.429923][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.435435][   T28]  ? bpf_lsm_file_ioctl+0x5/0x10
[  859.440390][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.445912][   T28]  __x64_sys_ioctl+0x193/0x200
[  859.450712][   T28]  do_syscall_64+0x35/0xb0
[  859.455163][   T28]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  859.461071][   T28] RIP: 0033:0x7f6e450cdee9
[  859.465532][   T28] RSP: 002b:00007f6e4505a308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  859.474022][   T28] RAX: ffffffffffffffda RBX: 00007f6e45151418 RCX: 00007f6e450cdee9
[  859.482057][   T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[  859.490053][   T28] RBP: 00007f6e45151410 R08: 00007f6e4505a700 R09: 0000000000000000
[  859.498104][   T28] R10: 00007f6e4505a700 R11: 0000000000000246 R12: 00007f6e4515141c
[  859.506160][   T28] R13: 00007f6e4511f074 R14: 64626e2f7665642f R15: 0000000000022000
[  859.514182][   T28]  </TASK>
[  859.517207][   T28] INFO: task syz-executor411:3656 blocked for more than 143 seconds.
[  859.525317][   T28]       Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  859.532883][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  859.541591][   T28] task:syz-executor411 state:D stack:29536 pid: 3656 ppid:  3641 flags:0x00000004
[  859.550807][   T28] Call Trace:
[  859.554139][   T28]  <TASK>
[  859.557107][   T28]  __schedule+0xadf/0x52b0
[  859.561649][   T28]  ? io_schedule_timeout+0x140/0x140
[  859.566964][   T28]  schedule+0xda/0x1b0
[  859.571021][   T28]  schedule_preempt_disabled+0xf/0x20
[  859.576684][   T28]  __mutex_lock+0xa44/0x1350
[  859.581291][   T28]  ? nbd_ioctl+0x151/0xbd0
[  859.585847][   T28]  ? mutex_lock_io_nested+0x1190/0x1190
[  859.591411][   T28]  ? tomoyo_execute_permission+0x4a0/0x4a0
[  859.597556][   T28]  ? bpf_lsm_capable+0x5/0x10
[  859.602329][   T28]  ? security_capable+0x8f/0xc0
[  859.607218][   T28]  nbd_ioctl+0x151/0xbd0
[  859.611449][   T28]  ? blkdev_bszset+0x1f0/0x1f0
[  859.616277][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.621326][   T28]  ? __ct_user_exit+0xff/0x150
[  859.626154][   T28]  ? lock_downgrade+0x6e0/0x6e0
[  859.631026][   T28]  ? nbd_start_device+0xc30/0xc30
[  859.636174][   T28]  blkdev_ioctl+0x36e/0x800
[  859.640697][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.646210][   T28]  ? bpf_lsm_file_ioctl+0x5/0x10
[  859.651251][   T28]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  859.656745][   T28]  __x64_sys_ioctl+0x193/0x200
[  859.661579][   T28]  do_syscall_64+0x35/0xb0
[  859.666006][   T28]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  859.671962][   T28] RIP: 0033:0x7f6e450cdee9
[  859.676587][   T28] RSP: 002b:00007f6e45039308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  859.685056][   T28] RAX: ffffffffffffffda RBX: 00007f6e45151428 RCX: 00007f6e450cdee9
[  859.693081][   T28] RDX: 0000000000000005 RSI: 000000000000ab07 RDI: 0000000000000003
[  859.701038][   T28] RBP: 00007f6e45151420 R08: 00007f6e45039700 R09: 0000000000000000
[  859.709044][   T28] R10: 00007f6e45039700 R11: 0000000000000246 R12: 00007f6e4515142c
[  859.717049][   T28] R13: 00007f6e4511f074 R14: 64626e2f7665642f R15: 0000000000022000
[  859.725083][   T28]  </TASK>
[  859.728199][   T28] 
[  859.728199][   T28] Showing all locks held in the system:
[  859.735969][   T28] 1 lock held by rcu_tasks_kthre/12:
[  859.741358][   T28]  #0: ffffffff8bf888b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[  859.751941][   T28] 1 lock held by rcu_tasks_trace/13:
[  859.757238][   T28]  #0: ffffffff8bf885b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[  859.768234][   T28] 1 lock held by khungtaskd/28:
[  859.773163][   T28]  #0: ffffffff8bf89400 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  859.783076][   T28] 2 locks held by getty/3284:
[  859.787865][   T28]  #0: ffff88814abb4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[  859.797920][   T28]  #1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[  859.808073][   T28] 1 lock held by syz-executor411/3654:
[  859.813585][   T28]  #0: ffff88801decc198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[  859.822965][   T28] 1 lock held by syz-executor411/3655:
[  859.828402][   T28]  #0: ffff88801decc198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[  859.837749][   T28] 1 lock held by syz-executor411/3656:
[  859.843226][   T28]  #0: ffff88801decc198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[  859.852684][   T28] 
[  859.855013][   T28] =============================================
[  859.855013][   T28] 
[  859.863460][   T28] NMI backtrace for cpu 1
[  859.867795][   T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  859.877592][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[  859.887647][   T28] Call Trace:
[  859.890917][   T28]  <TASK>
[  859.893838][   T28]  dump_stack_lvl+0xcd/0x134
[  859.898437][   T28]  nmi_cpu_backtrace.cold+0x46/0x14f
[  859.903818][   T28]  ? lapic_can_unplug_cpu+0x80/0x80
[  859.909011][   T28]  nmi_trigger_cpumask_backtrace+0x206/0x250
[  859.914986][   T28]  watchdog+0xc18/0xf50
[  859.919140][   T28]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  859.925117][   T28]  kthread+0x2e4/0x3a0
[  859.929178][   T28]  ? kthread_complete_and_exit+0x40/0x40
[  859.935154][   T28]  ret_from_fork+0x1f/0x30
[  859.939577][   T28]  </TASK>
[  859.942686][   T28] Sending NMI from CPU 1 to CPUs 0:
[  859.948001][    C0] NMI backtrace for cpu 0
[  859.948011][    C0] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  859.948026][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[  859.948043][    C0] Workqueue: events_unbound toggle_allocation_gate
[  859.948060][    C0] RIP: 0010:memcmp+0x68/0x1c0
[  859.948077][    C0] Code: e5 eb 15 4b 8d 04 2c 48 83 c5 01 48 83 c3 01 48 39 c5 0f 84 1e 01 00 00 48 89 e8 48 89 ea 48 c1 e8 03 83 e2 07 42 0f b6 04 30 <38> d0 7f 08 84 c0 0f 85 24 01 00 00 48 89 da 48 89 d9 0f b6 45 00
[  859.948090][    C0] RSP: 0018:ffffc90000b27ae0 EFLAGS: 00000202
[  859.948100][    C0] RAX: 0000000000000000 RBX: ffffffff8f4f2364 RCX: 0000000000000003
[  859.948109][    C0] RDX: 0000000000000002 RSI: ffffffff8f4f2360 RDI: ffffffff81c7f7ee
[  859.948118][    C0] RBP: ffffffff81c7f7f2 R08: 0000000000000001 R09: 0000000000000000
[  859.948126][    C0] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff81c7f7ee
[  859.948134][    C0] R13: 0000000000000005 R14: dffffc0000000000 R15: 0000000000000005
[  859.948145][    C0] FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[  859.948158][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  859.948167][    C0] CR2: 000055ffb9ec0600 CR3: 000000000bc8e000 CR4: 0000000000350ef0
[  859.948176][    C0] Call Trace:
[  859.948180][    C0]  <TASK>
[  859.948185][    C0]  ? __kmalloc+0xce/0x340
[  859.948198][    C0]  __jump_label_patch+0x173/0x330
[  859.948217][    C0]  arch_jump_label_transform_queue+0x63/0x100
[  859.948235][    C0]  __jump_label_update+0x12e/0x410
[  859.948253][    C0]  jump_label_update+0x32f/0x410
[  859.948269][    C0]  static_key_disable_cpuslocked+0x152/0x1b0
[  859.948284][    C0]  static_key_disable+0x16/0x20
[  859.948299][    C0]  toggle_allocation_gate+0x183/0x390
[  859.948312][    C0]  ? lock_release+0x780/0x780
[  859.948325][    C0]  ? wake_up_kfence_timer+0x20/0x20
[  859.948338][    C0]  ? lockdep_hardirqs_on+0x79/0x100
[  859.948355][    C0]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[  859.948373][    C0]  process_one_work+0x991/0x1610
[  859.948392][    C0]  ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[  859.948409][    C0]  ? rwlock_bug.part.0+0x90/0x90
[  859.948422][    C0]  ? _raw_spin_lock_irq+0x41/0x50
[  859.948439][    C0]  worker_thread+0x665/0x1080
[  859.948460][    C0]  ? __kthread_parkme+0x15f/0x220
[  859.948474][    C0]  ? process_one_work+0x1610/0x1610
[  859.948490][    C0]  kthread+0x2e4/0x3a0
[  859.948503][    C0]  ? kthread_complete_and_exit+0x40/0x40
[  859.948518][    C0]  ret_from_fork+0x1f/0x30
[  859.948537][    C0]  </TASK>
[  859.948995][   T28] Kernel panic - not syncing: hung_task: blocked tasks
[  860.201231][   T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc4-syzkaller-00062-g0066f1b0e275 #0
[  860.211033][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[  860.221087][   T28] Call Trace:
[  860.224359][   T28]  <TASK>
[  860.227283][   T28]  dump_stack_lvl+0xcd/0x134
[  860.231877][   T28]  panic+0x2c8/0x627
[  860.235772][   T28]  ? panic_print_sys_info.part.0+0x10b/0x10b
[  860.241752][   T28]  ? irq_work_claim+0x76/0x90
[  860.246422][   T28]  ? lapic_can_unplug_cpu+0x80/0x80
[  860.251616][   T28]  ? irq_work_queue+0x29/0x80
[  860.256286][   T28]  ? watchdog.cold+0x130/0x158
[  860.261061][   T28]  watchdog.cold+0x141/0x158
[  860.265646][   T28]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  860.271624][   T28]  kthread+0x2e4/0x3a0
[  860.275685][   T28]  ? kthread_complete_and_exit+0x40/0x40
[  860.281490][   T28]  ret_from_fork+0x1f/0x30
[  860.285914][   T28]  </TASK>
[  860.289755][   T28] Kernel Offset: disabled
[  860.294072][   T28] Rebooting in 86400 seconds..