forked to background, child pid 3184
no interfaces ha[ 27.364335][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0
ve a carrier
[ 27.373880][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.150257][ T23] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts.
executing program
[ 476.950593][ T3633] nbd0: detected capacity change from 0 to 126
[ 481.913864][ T3633] block nbd0: shutting down sockets
[ 507.508910][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 30 seconds
[ 537.025360][ T2974] udevd[2974]: worker [3635] /devices/virtual/block/nbd0 is taking a long time
[ 537.588484][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 60 seconds
[ 567.668467][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 90 seconds
[ 597.748440][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 120 seconds
[ 627.828506][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 657.179513][ T2974] udevd[2974]: worker [3635] /devices/virtual/block/nbd0 timeout; kill it
[ 657.180240][ T2974] udevd[2974]: seq 7474 '/devices/virtual/block/nbd0' killed
[ 657.180249][ T3635] ldm_validate_partition_table(): Disk read failed.
[ 657.180271][ T3635] Dev nbd0: unable to read RDB block 0
[ 657.180291][ T3635] nbd0: unable to read partition table
[ 657.180421][ T3635] nbd0: partition table beyond EOD, truncated
[ 657.186186][ T3644] nbd0: detected capacity change from 0 to 126
[ 657.186952][ T2974] udevd[2974]: worker [3635] terminated by signal 9 (Killed)
[ 657.186992][ T2974] udevd[2974]: worker [3635] failed while handling '/devices/virtual/block/nbd0'
[ 657.908458][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 180 seconds
[ 687.988543][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 210 seconds
[ 718.068453][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 240 seconds
[ 720.271363][ T2974] udevd[2974]: worker [3645] /devices/virtual/block/nbd0 is taking a long time
[ 748.148449][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 270 seconds
[ 778.228504][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 300 seconds
[ 808.308599][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 330 seconds
[ 838.388511][ T53] block nbd0: Possible stuck request ffff88801d650000: control (read@0,4096B). Runtime 360 seconds
[ 840.423641][ T2974] udevd[2974]: worker [3645] /devices/virtual/block/nbd0 timeout; kill it
[ 840.423772][ T2974] udevd[2974]: seq 7475 '/devices/virtual/block/nbd0' killed
[ 859.508495][ T29] INFO: task syz-executor417:3644 blocked for more than 143 seconds.
[ 859.516637][ T29] Not tainted 5.19.0-rc2-next-20220615-syzkaller #0
[ 859.523850][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.532695][ T29] task:syz-executor417 state:D stack:27632 pid: 3644 ppid: 3632 flags:0x00000004
[ 859.542007][ T29] Call Trace:
[ 859.545282][ T29]
[ 859.548209][ T29] __schedule+0xa06/0x4c00
[ 859.552792][ T29] ? io_schedule_timeout+0x140/0x140
[ 859.558120][ T29] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.564019][ T29] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.569906][ T29] schedule+0xd2/0x1f0
[ 859.574070][ T29] blk_mq_freeze_queue_wait+0x112/0x160
[ 859.579726][ T29] ? blk_mq_queue_inflight+0xa0/0xa0
[ 859.585031][ T29] ? blk_mq_run_hw_queue+0x4a0/0x4a0
[ 859.590374][ T29] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 859.596201][ T29] nbd_add_socket+0x166/0x810
[ 859.600982][ T29] ? apparmor_capable+0x1d8/0x460
[ 859.606066][ T29] ? nbd_genl_size_set+0x3e0/0x3e0
[ 859.611236][ T29] ? bpf_lsm_capable+0x5/0x10
[ 859.615946][ T29] ? security_capable+0x8f/0xc0
[ 859.620909][ T29] nbd_ioctl+0x4af/0xbd0
[ 859.625174][ T29] ? blkdev_bszset+0x1f0/0x1f0
[ 859.629995][ T29] ? nbd_start_device+0xc30/0xc30
[ 859.635060][ T29] ? __ct_user_exit+0x10c/0x160
[ 859.640198][ T29] ? lock_downgrade+0x6e0/0x6e0
[ 859.645125][ T29] ? nbd_start_device+0xc30/0xc30
[ 859.650329][ T29] blkdev_ioctl+0x36e/0x800
[ 859.654861][ T29] ? blkdev_common_ioctl+0x1a50/0x1a50
[ 859.660431][ T29] ? bpf_lsm_file_ioctl+0x5/0x10
[ 859.665389][ T29] ? blkdev_common_ioctl+0x1a50/0x1a50
[ 859.671008][ T29] __x64_sys_ioctl+0x193/0x200
[ 859.675889][ T29] do_syscall_64+0x35/0xb0
[ 859.680387][ T29] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 859.686302][ T29] RIP: 0033:0x7f8c1bd65399
[ 859.690834][ T29] RSP: 002b:00007ffd5134c138 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.699367][ T29] RAX: ffffffffffffffda RBX: 00000000000746d4 RCX: 00007f8c1bd65399
[ 859.707362][ T29] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 859.715398][ T29] RBP: 0000000000000000 R08: 00007ffd5134c2d8 R09: 00007ffd5134c2d8
[ 859.723446][ T29] R10: 00007ffd5134c2d8 R11: 0000000000000246 R12: 00007ffd5134c14c
[ 859.731492][ T29] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 859.739551][ T29]
[ 859.742584][ T29] INFO: task udevd:3645 blocked for more than 143 seconds.
[ 859.749837][ T29] Not tainted 5.19.0-rc2-next-20220615-syzkaller #0
[ 859.756955][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.765917][ T29] task:udevd state:D stack:27656 pid: 3645 ppid: 2974 flags:0x00004004
[ 859.775348][ T29] Call Trace:
[ 859.778760][ T29]
[ 859.781696][ T29] __schedule+0xa06/0x4c00
[ 859.786112][ T29] ? find_held_lock+0x2d/0x110
[ 859.790973][ T29] ? io_schedule_timeout+0x140/0x140
[ 859.796271][ T29] ? mark_held_locks+0x9f/0xe0
[ 859.801148][ T29] schedule+0xd2/0x1f0
[ 859.805233][ T29] io_schedule+0xba/0x130
[ 859.809655][ T29] folio_wait_bit_common+0x4f2/0xa90
[ 859.814977][ T29] ? perf_trace_mm_filemap_op_page_cache+0x8d0/0x8d0
[ 859.821771][ T29] ? filemap_add_folio+0x1d0/0x1d0
[ 859.826924][ T29] ? folio_unlock+0xc0/0xc0
[ 859.831539][ T29] ? format_decode+0x230/0xad0
[ 859.836393][ T29] ? enable_ptr_key_workfn+0x20/0x20
[ 859.841800][ T29] do_read_cache_folio+0x34a/0x5b0
[ 859.847003][ T29] ? blkdev_writepages+0x20/0x20
[ 859.852109][ T29] read_part_sector+0xf6/0x440
[ 859.856951][ T29] ? adfspart_check_ADFS+0x560/0x560
[ 859.862705][ T29] adfspart_check_ICS+0x9a/0x890
[ 859.867669][ T29] ? rcu_read_lock_sched_held+0x3a/0x70
[ 859.873321][ T29] ? __alloc_pages+0x3da/0x510
[ 859.878188][ T29] ? __alloc_pages_slowpath.constprop.0+0x2120/0x2120
[ 859.885050][ T29] ? adfspart_check_ADFS+0x560/0x560
[ 859.890460][ T29] ? snprintf+0xbb/0xf0
[ 859.894629][ T29] ? vsprintf+0x30/0x30
[ 859.898916][ T29] ? alloc_pages+0x1b2/0x310
[ 859.903551][ T29] ? adfspart_check_ADFS+0x560/0x560
[ 859.908984][ T29] bdev_disk_changed+0x629/0xf60
[ 859.913950][ T29] ? iput.part.0+0x73/0x820
[ 859.918570][ T29] blkdev_get_whole+0x18a/0x2d0
[ 859.923505][ T29] blkdev_get_by_dev.part.0+0x5ec/0xb90
[ 859.929247][ T29] ? devcgroup_check_permission+0x1ab/0x440
[ 859.935236][ T29] blkdev_get_by_dev+0x6b/0x80
[ 859.940124][ T29] blkdev_open+0x13c/0x2c0
[ 859.944575][ T29] do_dentry_open+0x4a1/0x11f0
[ 859.949473][ T29] ? blkdev_close+0x80/0x80
[ 859.954010][ T29] path_openat+0x1c71/0x2910
[ 859.958738][ T29] ? path_lookupat+0x860/0x860
[ 859.963523][ T29] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 859.969622][ T29] do_filp_open+0x1aa/0x400
[ 859.974154][ T29] ? may_open_dev+0xf0/0xf0
[ 859.978817][ T29] ? rwlock_bug.part.0+0x90/0x90
[ 859.983791][ T29] ? _find_next_bit+0x1e3/0x260
[ 859.988840][ T29] ? _raw_spin_unlock+0x24/0x40
[ 859.993732][ T29] ? alloc_fd+0x2f0/0x670
[ 859.998070][ T29] do_sys_openat2+0x16d/0x4c0
[ 860.002855][ T29] ? build_open_flags+0x6f0/0x6f0
[ 860.007923][ T29] ? up_write+0x470/0x470
[ 860.012381][ T29] __x64_sys_openat+0x13f/0x1f0
[ 860.017256][ T29] ? __ia32_sys_open+0x1c0/0x1c0
[ 860.022321][ T29] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.028241][ T29] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.034273][ T29] do_syscall_64+0x35/0xb0
[ 860.038804][ T29] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 860.044717][ T29] RIP: 0033:0x7fc8c8f25697
[ 860.049227][ T29] RSP: 002b:00007ffcdc6a35a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.057654][ T29] RAX: ffffffffffffffda RBX: 000056255a3474d0 RCX: 00007fc8c8f25697
[ 860.065720][ T29] RDX: 00000000000a0800 RSI: 000056255a32b190 RDI: 00000000ffffff9c
[ 860.073792][ T29] RBP: 000056255a32b190 R08: 0000000000000001 R09: 00007ffcdc7a9080
[ 860.081886][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 860.089958][ T29] R13: 000056255a335790 R14: 00007ffcdc6a364c R15: 000056255a31b910
[ 860.097949][ T29]
[ 860.101112][ T29]
[ 860.101112][ T29] Showing all locks held in the system:
[ 860.108895][ T29] 1 lock held by rcu_tasks_kthre/12:
[ 860.114193][ T29] #0: ffffffff8bd867f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.124769][ T29] 1 lock held by rcu_tasks_trace/13:
[ 860.130136][ T29] #0: ffffffff8bd864f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.141188][ T29] 1 lock held by khungtaskd/29:
[ 860.141188][ T29] 1 lock held by khungtaskd/29:
[ 860.141213][ T29] #0: ffffffff8bd87340 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 860.141345][ T29] 2 locks held by getty/3289:
[ 860.141360][ T29] #0: ffff88801f792098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 860.141498][ T29] #1: ffffc90002d162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0
[ 860.141574][ T29] 1 lock held by syz-executor417/3644:
[ 860.141590][ T29] #0: ffff888147269198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 860.141663][ T29] 1 lock held by udevd/3645:
[ 860.141678][ T29] #0: ffff88801d613118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.141750][ T29]
[ 860.141763][ T29] =============================================
[ 860.141763][ T29]
[ 860.141773][ T29] NMI backtrace for cpu 0
[ 860.141784][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc2-next-20220615-syzkaller #0
[ 860.141809][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 860.141822][ T29] Call Trace:
[ 860.141832][ T29]
[ 860.141842][ T29] dump_stack_lvl+0xcd/0x134
[ 860.141906][ T29] nmi_cpu_backtrace.cold+0x47/0x144
[ 860.141938][ T29] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.141967][ T29] nmi_trigger_cpumask_backtrace+0x1e6/0x230
[ 860.142000][ T29] watchdog+0xc22/0xf90
[ 860.142031][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.142069][ T29] kthread+0x2e9/0x3a0
[ 860.142091][ T29] ? kthread_complete_and_exit+0x40/0x40
[ 860.142118][ T29] ret_from_fork+0x1f/0x30
[ 860.142162][ T29]
[ 860.142172][ T29] Sending NMI from CPU 0 to CPUs 1:
[ 860.142198][ C1] NMI backtrace for cpu 1
[ 860.142206][ C1] CPU: 1 PID: 16 Comm: pr/ttyS0 Not tainted 5.19.0-rc2-next-20220615-syzkaller #0
[ 860.142225][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 860.142234][ C1] RIP: 0010:io_serial_in+0x83/0xa0
[ 860.142279][ C1] Code: df 16 fd 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 16 66 03 5d 40 89 da ec <5b> 0f b6 c0 5d 41 5c c3 e8 60 b7 63 fd eb a6 e8 89 b7 63 fd eb e3
[ 860.142296][ C1] RSP: 0018:ffffc90000157b08 EFLAGS: 00000002
[ 860.142310][ C1] RAX: dffffc0000000000 RBX: 00000000000003fd RCX: 0000000000000000
[ 860.142322][ C1] RDX: 00000000000003fd RSI: ffffffff8463e43c RDI: ffffffff9123a720
[ 860.142334][ C1] RBP: ffffffff9123a6e0 R08: 0000000000000001 R09: 000000000000001f
[ 860.142345][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 860.142355][ C1] R13: 0000000000000020 R14: fffffbfff2247531 R15: fffffbfff22474e6
[ 860.142367][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 860.142385][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.142399][ C1] CR2: 000055ea48896600 CR3: 000000000ba8e000 CR4: 00000000003506e0
[ 860.142410][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.142420][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.142431][ C1] Call Trace:
[ 860.142435][ C1]
[ 860.142442][ C1] wait_for_lsr+0xab/0x120
[ 860.142465][ C1] serial8250_console_write+0xc87/0xfe0
[ 860.142491][ C1] ? serial8250_start_tx+0x800/0x800
[ 860.142514][ C1] ? prb_read_valid+0x75/0xa0
[ 860.142533][ C1] ? prb_final_commit+0xa0/0xa0
[ 860.142560][ C1] __console_emit_next_record+0x896/0xa60
[ 860.142580][ C1] ? devkmsg_read+0x730/0x730
[ 860.142596][ C1] ? printk_kthread_func.cold+0x57b/0x73d
[ 860.142624][ C1] ? mutex_lock_io_nested+0x1190/0x1190
[ 860.142653][ C1] printk_kthread_func.cold+0x702/0x73d
[ 860.142675][ C1] ? register_console+0x970/0x970
[ 860.142691][ C1] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.142715][ C1] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 860.142735][ C1] ? __kthread_parkme+0x15f/0x220
[ 860.142752][ C1] ? register_console+0x970/0x970
[ 860.142770][ C1] kthread+0x2e9/0x3a0
[ 860.142786][ C1] ? kthread_complete_and_exit+0x40/0x40
[ 860.142806][ C1] ret_from_fork+0x1f/0x30
[ 860.142833][ C1]
[ 860.143193][ T29] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.143205][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc2-next-20220615-syzkaller #0
[ 860.143227][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 860.143249][ T29] Call Trace:
[ 860.143256][ T29]
[ 860.143264][ T29] dump_stack_lvl+0xcd/0x134
[ 860.143294][ T29] panic+0x2d7/0x636
[ 860.143320][ T29] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 860.143351][ T29] ? irq_work_claim+0x76/0x90
[ 860.143375][ T29] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.143400][ T29] ? irq_work_queue+0x29/0x80
[ 860.143422][ T29] ? __wake_up_klogd.part.0+0x99/0xf0
[ 860.143443][ T29] ? watchdog.cold+0x5/0x143
[ 860.143471][ T29] watchdog.cold+0x16/0x143
[ 860.143496][ T29] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.143528][ T29] kthread+0x2e9/0x3a0
[ 860.143548][ T29] ? kthread_complete_and_exit+0x40/0x40
[ 860.143574][ T29] ret_from_fork+0x1f/0x30
[ 860.143614][ T29]
[ 860.146406][ T29] Kernel Offset: disabled