DUID 00:04:ac:03:58:10:d0:76:5c:28:30:a7:8a:8b:4a:a3:06:e2 forked to background, child pid 3185 [ 26.811081][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.823530][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 76.214654][ T14] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.40' (ECDSA) to the list of known hosts. executing program [ 489.984503][ T3644] nbd0: detected capacity change from 0 to 137438953472 [ 494.948418][ T3644] block nbd0: shutting down sockets [ 520.372383][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 30 seconds [ 550.070898][ T2973] udevd[2973]: worker [3646] /devices/virtual/block/nbd0 is taking a long time [ 550.452441][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 60 seconds [ 580.532500][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 90 seconds [ 610.612481][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 120 seconds [ 640.692486][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 150 seconds executing program [ 670.222580][ T2973] udevd[2973]: worker [3646] /devices/virtual/block/nbd0 timeout; kill it [ 670.231849][ T3646] ldm_validate_partition_table(): Disk read failed. [ 670.238802][ T3646] Dev nbd0: unable to read RDB block 0 [ 670.244645][ T2973] udevd[2973]: seq 7486 '/devices/virtual/block/nbd0' killed [ 670.244796][ T3646] nbd0: unable to read partition table [ 670.257832][ T3646] nbd0: partition table beyond EOD, truncated [ 670.269202][ T3653] nbd0: detected capacity change from 0 to 137438953472 [ 670.270166][ T2973] udevd[2973]: worker [3646] terminated by signal 9 (Killed) [ 670.284014][ T2973] udevd[2973]: worker [3646] failed while handling '/devices/virtual/block/nbd0' [ 670.772418][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 180 seconds [ 700.852487][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 210 seconds [ 730.366336][ T2973] udevd[2973]: worker [3654] /devices/virtual/block/nbd0 is taking a long time [ 730.932454][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 240 seconds [ 761.012481][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 270 seconds [ 791.092398][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 300 seconds [ 821.172460][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 330 seconds [ 850.514487][ T2973] udevd[2973]: worker [3654] /devices/virtual/block/nbd0 timeout; kill it [ 850.523273][ T2973] udevd[2973]: seq 7487 '/devices/virtual/block/nbd0' killed [ 851.252388][ T9] block nbd0: Possible stuck request ffff88801f028000: control (read@0,4096B). Runtime 360 seconds [ 859.572473][ T28] INFO: task syz-executor761:3653 blocked for more than 143 seconds. [ 859.580632][ T28] Not tainted 5.19.0-next-20220809-syzkaller #0 [ 859.587586][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.596439][ T28] task:syz-executor761 state:D stack:28120 pid:3653 ppid:3643 flags:0x00000004 [ 859.605805][ T28] Call Trace: [ 859.609097][ T28] [ 859.612022][ T28] __schedule+0xadf/0x52b0 [ 859.616983][ T28] ? io_schedule_timeout+0x140/0x140 [ 859.622348][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 859.628183][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 859.634043][ T28] schedule+0xda/0x1b0 [ 859.638159][ T28] blk_mq_freeze_queue_wait+0x112/0x160 [ 859.643836][ T28] ? blk_mq_queue_inflight+0xa0/0xa0 [ 859.649152][ T28] ? blk_mq_run_hw_queue+0x490/0x490 [ 859.654547][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 859.660384][ T28] nbd_add_socket+0x166/0x810 [ 859.665129][ T28] ? apparmor_capable+0x1d8/0x460 [ 859.670257][ T28] ? nbd_alloc_config.part.0+0x180/0x180 [ 859.676291][ T28] ? bpf_lsm_capable+0x5/0x10 [ 859.681003][ T28] ? security_capable+0x8f/0xc0 [ 859.686022][ T28] nbd_ioctl+0x4ab/0xbd0 [ 859.690298][ T28] ? blkdev_bszset+0x1f0/0x1f0 [ 859.695157][ T28] ? nbd_start_device+0xc30/0xc30 [ 859.700209][ T28] ? __ct_user_exit+0xff/0x150 [ 859.705038][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 859.709995][ T28] ? nbd_start_device+0xc30/0xc30 [ 859.715093][ T28] blkdev_ioctl+0x36e/0x800 [ 859.719658][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30 [ 859.725536][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 859.730584][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30 [ 859.736119][ T28] __x64_sys_ioctl+0x193/0x200 [ 859.740916][ T28] do_syscall_64+0x35/0xb0 [ 859.745403][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 859.751325][ T28] RIP: 0033:0x7f6896bde399 [ 859.755780][ T28] RSP: 002b:00007ffccaf309f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 859.764230][ T28] RAX: ffffffffffffffda RBX: 00000000000779bf RCX: 00007f6896bde399 [ 859.772196][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003 [ 859.780240][ T28] RBP: 0000000000000000 R08: 00007ffccaf30b98 R09: 00007ffccaf30b98 [ 859.788246][ T28] R10: 00007ffccaf30b98 R11: 0000000000000246 R12: 00007ffccaf30a0c [ 859.796257][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 859.804273][ T28] [ 859.807298][ T28] INFO: task udevd:3654 blocked for more than 143 seconds. [ 859.814533][ T28] Not tainted 5.19.0-next-20220809-syzkaller #0 [ 859.821299][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.830058][ T28] task:udevd state:D stack:27648 pid:3654 ppid:2973 flags:0x00004004 [ 859.839452][ T28] Call Trace: [ 859.842793][ T28] [ 859.845745][ T28] __schedule+0xadf/0x52b0 [ 859.850209][ T28] ? io_schedule_timeout+0x140/0x140 [ 859.855660][ T28] ? mark_held_locks+0x9f/0xe0 [ 859.860449][ T28] schedule+0xda/0x1b0 [ 859.864656][ T28] io_schedule+0xba/0x130 [ 859.869002][ T28] folio_wait_bit_common+0x3dd/0xa90 [ 859.874365][ T28] ? perf_trace_mm_filemap_op_page_cache+0x8c0/0x8c0 [ 859.881087][ T28] ? filemap_add_folio+0x1d0/0x1d0 [ 859.886238][ T28] ? folio_unlock+0xc0/0xc0 [ 859.890768][ T28] ? enable_ptr_key_workfn+0x20/0x20 [ 859.896239][ T28] do_read_cache_folio+0x2c0/0x510 [ 859.901369][ T28] ? blkdev_writepages+0x20/0x20 [ 859.906403][ T28] read_part_sector+0xf6/0x440 [ 859.911191][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 859.916530][ T28] adfspart_check_ICS+0x9a/0x890 [ 859.921496][ T28] ? __alloc_pages_slowpath.constprop.0+0x2200/0x2200 [ 859.928327][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 859.933674][ T28] ? snprintf+0xbb/0xf0 [ 859.937856][ T28] ? vsprintf+0x30/0x30 [ 859.942015][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 859.947350][ T28] bdev_disk_changed+0x629/0xf60 [ 859.952357][ T28] ? iput.part.0+0x73/0x810 [ 859.956868][ T28] blkdev_get_whole+0x18a/0x2d0 [ 859.961712][ T28] blkdev_get_by_dev.part.0+0x5ec/0xb90 [ 859.967413][ T28] ? devcgroup_check_permission+0x1a6/0x430 [ 859.973572][ T28] blkdev_get_by_dev+0x6b/0x80 [ 859.978378][ T28] blkdev_open+0x13c/0x2c0 [ 859.982861][ T28] do_dentry_open+0x4a4/0x13a0 [ 859.987650][ T28] ? blkdev_close+0x80/0x80 [ 859.992171][ T28] path_openat+0x1c92/0x28f0 [ 859.996926][ T28] ? path_lookupat+0x840/0x840 [ 860.001717][ T28] do_filp_open+0x1b6/0x400 [ 860.006270][ T28] ? may_open_dev+0xf0/0xf0 [ 860.010794][ T28] ? find_held_lock+0x2d/0x110 [ 860.015619][ T28] ? do_raw_spin_lock+0x120/0x2a0 [ 860.020665][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 860.025673][ T28] ? _find_next_bit+0x1e3/0x260 [ 860.030669][ T28] ? _raw_spin_unlock+0x24/0x40 [ 860.035628][ T28] ? alloc_fd+0x2f0/0x6f0 [ 860.040018][ T28] do_sys_openat2+0x16d/0x4c0 [ 860.044763][ T28] ? build_open_flags+0x6f0/0x6f0 [ 860.049809][ T28] ? up_write+0x470/0x470 [ 860.054196][ T28] __x64_sys_openat+0x13f/0x1f0 [ 860.059064][ T28] ? __ia32_sys_open+0x1c0/0x1c0 [ 860.064045][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 860.069964][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 860.075927][ T28] do_syscall_64+0x35/0xb0 [ 860.080358][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 860.086294][ T28] RIP: 0033:0x7f29ae588697 [ 860.090718][ T28] RSP: 002b:00007ffe179b0ff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 860.099249][ T28] RAX: ffffffffffffffda RBX: 000055fc54dafbd0 RCX: 00007f29ae588697 [ 860.107273][ T28] RDX: 00000000000a0800 RSI: 000055fc54db7ed0 RDI: 00000000ffffff9c [ 860.115314][ T28] RBP: 000055fc54db7ed0 R08: 0000000000000001 R09: 00007ffe179e6080 [ 860.123439][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 860.131422][ T28] R13: 000055fc54dbf790 R14: 00007ffe179b109c R15: 000055fc54da5910 [ 860.139455][ T28] [ 860.142521][ T28] [ 860.142521][ T28] Showing all threads with locks held in the system: [ 860.151351][ T28] task:rcu_tasks_kthre state:I stack:29000 pid:12 ppid:2 flags:0x00004000 [ 860.160614][ T28] Call Trace: [ 860.163922][ T28] [ 860.166858][ T28] __schedule+0xadf/0x52b0 [ 860.171278][ T28] ? find_held_lock+0x2d/0x110 [ 860.176082][ T28] ? rcu_tasks_one_gp+0x6f5/0xc70 [ 860.181132][ T28] ? io_schedule_timeout+0x140/0x140 [ 860.186475][ T28] ? mark_held_locks+0x9f/0xe0 [ 860.191256][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.197113][ T28] schedule+0xda/0x1b0 [ 860.201297][ T28] rcu_tasks_one_gp+0x3e5/0xc70 [ 860.206235][ T28] rcu_tasks_kthread+0x73/0xa0 [ 860.211041][ T28] ? synchronize_rcu_tasks_trace+0x60/0x60 [ 860.216921][ T28] kthread+0x2e4/0x3a0 [ 860.221017][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 860.226705][ T28] ret_from_fork+0x1f/0x30 [ 860.231172][ T28] [ 860.234260][ T28] 1 lock held by rcu_tasks_kthre/12: [ 860.239554][ T28] #0: ffffffff8bf889b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 860.250202][ T28] task:rcu_tasks_trace state:I stack:29120 pid:13 ppid:2 flags:0x00004000 [ 860.259492][ T28] Call Trace: [ 860.262816][ T28] [ 860.265746][ T28] __schedule+0xadf/0x52b0 [ 860.270167][ T28] ? find_held_lock+0x2d/0x110 [ 860.274998][ T28] ? rcu_tasks_one_gp+0x6f5/0xc70 [ 860.280057][ T28] ? io_schedule_timeout+0x140/0x140 [ 860.285399][ T28] ? mark_held_locks+0x9f/0xe0 [ 860.290187][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.296062][ T28] schedule+0xda/0x1b0 [ 860.300160][ T28] rcu_tasks_one_gp+0x3e5/0xc70 [ 860.305079][ T28] rcu_tasks_kthread+0x73/0xa0 [ 860.309862][ T28] ? synchronize_rcu_tasks_trace+0x60/0x60 [ 860.315718][ T28] kthread+0x2e4/0x3a0 [ 860.319804][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 860.325483][ T28] ret_from_fork+0x1f/0x30 [ 860.329927][ T28] [ 860.333025][ T28] 1 lock held by rcu_tasks_trace/13: [ 860.338324][ T28] #0: ffffffff8bf886b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 860.349334][ T28] task:kworker/0:1 state:D stack:26168 pid:14 ppid:2 flags:0x00004000 [ 860.358581][ T28] Workqueue: rcu_gp wait_rcu_exp_gp [ 860.363841][ T28] Call Trace: [ 860.367131][ T28] [ 860.370079][ T28] __schedule+0xadf/0x52b0 [ 860.374585][ T28] ? find_held_lock+0x2d/0x110 [ 860.379365][ T28] ? mark_held_locks+0x60/0xe0 [ 860.384168][ T28] ? io_schedule_timeout+0x140/0x140 [ 860.389475][ T28] ? lockdep_hardirqs_on+0x79/0x100 [ 860.394731][ T28] schedule+0xda/0x1b0 [ 860.398821][ T28] schedule_timeout+0x14a/0x2a0 [ 860.403721][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 860.408945][ T28] ? destroy_timer_on_stack+0x20/0x20 [ 860.414363][ T28] ? p9_pollwake+0x140/0x1c0 [ 860.419037][ T28] ? lockdep_hardirqs_on+0x79/0x100 [ 860.424424][ T28] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 860.430258][ T28] rcu_exp_wait_wake+0x28f/0xf80 [ 860.435245][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.441077][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.446980][ T28] ? strict_work_handler+0x1b0/0x1b0 [ 860.452334][ T28] ? sync_rcu_exp_select_cpus+0x3c7/0xa90 [ 860.458076][ T28] process_one_work+0x991/0x1610 [ 860.463061][ T28] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 860.468468][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 860.473475][ T28] ? _raw_spin_lock_irq+0x41/0x50 [ 860.478532][ T28] worker_thread+0x665/0x1080 [ 860.483299][ T28] ? __kthread_parkme+0x15f/0x220 [ 860.488353][ T28] ? process_one_work+0x1610/0x1610 [ 860.493643][ T28] kthread+0x2e4/0x3a0 [ 860.497735][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 860.503428][ T28] ret_from_fork+0x1f/0x30 [ 860.507870][ T28] [ 860.510881][ T28] 2 locks held by kworker/0:1/14: [ 860.515940][ T28] #0: ffff888011866538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 860.526367][ T28] #1: ffffc90000137da8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 860.538249][ T28] task:getty state:S stack:23392 pid:3288 ppid:1 flags:0x00000000 [ 860.547513][ T28] Call Trace: [ 860.550790][ T28] [ 860.553758][ T28] __schedule+0xadf/0x52b0 [ 860.558223][ T28] ? io_schedule_timeout+0x140/0x140 [ 860.563564][ T28] schedule+0xda/0x1b0 [ 860.567652][ T28] schedule_timeout+0x1db/0x2a0 [ 860.572570][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 860.577790][ T28] ? __up_read+0x192/0x720 [ 860.582208][ T28] ? down_read+0x198/0x450 [ 860.586669][ T28] ? up_write+0x470/0x470 [ 860.591025][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.596908][ T28] wait_woken+0x18b/0x1f0 [ 860.601264][ T28] n_tty_read+0x1051/0x13e0 [ 860.605907][ T28] ? n_tty_open+0x170/0x170 [ 860.610440][ T28] ? __init_waitqueue_head+0x150/0x150 [ 860.615993][ T28] tty_read+0x33a/0x5d0 [ 860.620180][ T28] ? do_SAK+0x70/0x70 [ 860.624232][ T28] ? fsnotify_perm.part.0+0x221/0x610 [ 860.629639][ T28] ? apparmor_file_permission+0x264/0x4e0 [ 860.635437][ T28] ? security_file_permission+0xab/0xd0 [ 860.641176][ T28] vfs_read+0x67d/0x930 [ 860.645388][ T28] ? kernel_read+0x1c0/0x1c0 [ 860.650004][ T28] ? __ct_user_exit+0xff/0x150 [ 860.654964][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 860.659862][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 860.664774][ T28] ? __fget_light+0x20a/0x270 [ 860.669545][ T28] ksys_read+0x127/0x250 [ 860.673853][ T28] ? vfs_write+0xdd0/0xdd0 [ 860.678297][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 860.684250][ T28] do_syscall_64+0x35/0xb0 [ 860.688683][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 860.694634][ T28] RIP: 0033:0x7ff9806488fe [ 860.699061][ T28] RSP: 002b:00007fff449159b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 860.707531][ T28] RAX: ffffffffffffffda RBX: 000055be5b4f2910 RCX: 00007ff9806488fe [ 860.715543][ T28] RDX: 0000000000000001 RSI: 00007fff449159d0 RDI: 0000000000000000 [ 860.723552][ T28] RBP: 000055be5b4f2970 R08: 0000000000000007 R09: 000055be5b4f3cd0 [ 860.731532][ T28] R10: 0000000000000063 R11: 0000000000000246 R12: 000055be5b4f29ac [ 860.739547][ T28] R13: 00007fff449159d0 R14: 0000000000000000 R15: 000055be5b4f29ac [ 860.747600][ T28] [ 860.750624][ T28] 2 locks held by getty/3288: [ 860.755338][ T28] #0: ffff8880264b3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 [ 860.765191][ T28] #1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 [ 860.775392][ T28] task:syz-executor761 state:D stack:28120 pid:3653 ppid:3643 flags:0x00000004 [ 860.784659][ T28] Call Trace: [ 860.787941][ T28] [ 860.790954][ T28] __schedule+0xadf/0x52b0 [ 860.795437][ T28] ? io_schedule_timeout+0x140/0x140 [ 860.800744][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.806606][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 860.812593][ T28] schedule+0xda/0x1b0 [ 860.816662][ T28] blk_mq_freeze_queue_wait+0x112/0x160 [ 860.822206][ T28] ? blk_mq_queue_inflight+0xa0/0xa0 [ 860.827531][ T28] ? blk_mq_run_hw_queue+0x490/0x490 [ 860.832894][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 860.838709][ T28] nbd_add_socket+0x166/0x810 [ 860.843431][ T28] ? apparmor_capable+0x1d8/0x460 [ 860.848469][ T28] ? nbd_alloc_config.part.0+0x180/0x180 [ 860.854213][ T28] ? bpf_lsm_capable+0x5/0x10 [ 860.858920][ T28] ? security_capable+0x8f/0xc0 [ 860.863868][ T28] nbd_ioctl+0x4ab/0xbd0 [ 860.868177][ T28] ? blkdev_bszset+0x1f0/0x1f0 [ 860.873172][ T28] ? nbd_start_device+0xc30/0xc30 [ 860.878559][ T28] ? __ct_user_exit+0xff/0x150 [ 860.883390][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 860.888269][ T28] ? nbd_start_device+0xc30/0xc30 [ 860.893470][ T28] blkdev_ioctl+0x36e/0x800 [ 860.898003][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30 [ 860.903532][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 860.908494][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30 [ 860.914007][ T28] __x64_sys_ioctl+0x193/0x200 [ 860.918793][ T28] do_syscall_64+0x35/0xb0 [ 860.923273][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 860.929186][ T28] RIP: 0033:0x7f6896bde399 [ 860.933692][ T28] RSP: 002b:00007ffccaf309f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 860.942140][ T28] RAX: ffffffffffffffda RBX: 00000000000779bf RCX: 00007f6896bde399 [ 860.950159][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003 [ 860.958175][ T28] RBP: 0000000000000000 R08: 00007ffccaf30b98 R09: 00007ffccaf30b98 [ 860.966184][ T28] R10: 00007ffccaf30b98 R11: 0000000000000246 R12: 00007ffccaf30a0c [ 860.974198][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 860.982173][ T28] [ 860.985226][ T28] 1 lock held by syz-executor761/3653: [ 860.990692][ T28] #0: ffff888147530198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0 [ 861.000060][ T28] task:udevd state:D stack:27648 pid:3654 ppid:2973 flags:0x00004004 [ 861.009320][ T28] Call Trace: [ 861.012652][ T28] [ 861.015607][ T28] __schedule+0xadf/0x52b0 [ 861.020077][ T28] ? io_schedule_timeout+0x140/0x140 [ 861.025433][ T28] ? mark_held_locks+0x9f/0xe0 [ 861.030219][ T28] schedule+0xda/0x1b0 [ 861.034350][ T28] io_schedule+0xba/0x130 [ 861.038698][ T28] folio_wait_bit_common+0x3dd/0xa90 [ 861.044049][ T28] ? perf_trace_mm_filemap_op_page_cache+0x8c0/0x8c0 [ 861.050752][ T28] ? filemap_add_folio+0x1d0/0x1d0 [ 861.055920][ T28] ? folio_unlock+0xc0/0xc0 [ 861.060446][ T28] ? enable_ptr_key_workfn+0x20/0x20 [ 861.065807][ T28] do_read_cache_folio+0x2c0/0x510 [ 861.070963][ T28] ? blkdev_writepages+0x20/0x20 [ 861.075951][ T28] read_part_sector+0xf6/0x440 [ 861.080739][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 861.086078][ T28] adfspart_check_ICS+0x9a/0x890 [ 861.091045][ T28] ? __alloc_pages_slowpath.constprop.0+0x2200/0x2200 [ 861.097869][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 861.103209][ T28] ? snprintf+0xbb/0xf0 [ 861.107365][ T28] ? vsprintf+0x30/0x30 [ 861.111524][ T28] ? adfspart_check_ADFS+0x560/0x560 [ 861.116869][ T28] bdev_disk_changed+0x629/0xf60 [ 861.121873][ T28] ? iput.part.0+0x73/0x810 [ 861.126434][ T28] blkdev_get_whole+0x18a/0x2d0 [ 861.131301][ T28] blkdev_get_by_dev.part.0+0x5ec/0xb90 [ 861.136923][ T28] ? devcgroup_check_permission+0x1a6/0x430 [ 861.142915][ T28] blkdev_get_by_dev+0x6b/0x80 [ 861.147747][ T28] blkdev_open+0x13c/0x2c0 [ 861.152192][ T28] do_dentry_open+0x4a4/0x13a0 [ 861.157046][ T28] ? blkdev_close+0x80/0x80 [ 861.161570][ T28] path_openat+0x1c92/0x28f0 [ 861.166220][ T28] ? path_lookupat+0x840/0x840 [ 861.171016][ T28] do_filp_open+0x1b6/0x400 [ 861.175595][ T28] ? may_open_dev+0xf0/0xf0 [ 861.180123][ T28] ? find_held_lock+0x2d/0x110 [ 861.184938][ T28] ? do_raw_spin_lock+0x120/0x2a0 [ 861.189977][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 861.194962][ T28] ? _find_next_bit+0x1e3/0x260 [ 861.199854][ T28] ? _raw_spin_unlock+0x24/0x40 [ 861.204769][ T28] ? alloc_fd+0x2f0/0x6f0 [ 861.209134][ T28] do_sys_openat2+0x16d/0x4c0 [ 861.213868][ T28] ? build_open_flags+0x6f0/0x6f0 [ 861.218918][ T28] ? up_write+0x470/0x470 [ 861.223328][ T28] __x64_sys_openat+0x13f/0x1f0 [ 861.228205][ T28] ? __ia32_sys_open+0x1c0/0x1c0 [ 861.233199][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 861.239129][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 861.245086][ T28] do_syscall_64+0x35/0xb0 [ 861.249528][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 861.255577][ T28] RIP: 0033:0x7f29ae588697 [ 861.260094][ T28] RSP: 002b:00007ffe179b0ff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 861.268576][ T28] RAX: ffffffffffffffda RBX: 000055fc54dafbd0 RCX: 00007f29ae588697 [ 861.277119][ T28] RDX: 00000000000a0800 RSI: 000055fc54db7ed0 RDI: 00000000ffffff9c [ 861.285171][ T28] RBP: 000055fc54db7ed0 R08: 0000000000000001 R09: 00007ffe179e6080 [ 861.293205][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 861.301206][ T28] R13: 000055fc54dbf790 R14: 00007ffe179b109c R15: 000055fc54da5910 [ 861.309233][ T28] [ 861.312307][ T28] 1 lock held by udevd/3654: [ 861.316909][ T28] #0: ffff88801eb824c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 [ 861.327488][ T28] task:dhcpcd state:D stack:28856 pid:3666 ppid:3186 flags:0x00004000 [ 861.336742][ T28] Call Trace: [ 861.340015][ T28] [ 861.342991][ T28] __schedule+0xadf/0x52b0 [ 861.347440][ T28] ? preempt_schedule_common+0x59/0xc0 [ 861.353570][ T28] ? io_schedule_timeout+0x140/0x140 [ 861.358875][ T28] ? _raw_spin_unlock_irqrestore+0x57/0x70 [ 861.364754][ T28] schedule+0xda/0x1b0 [ 861.368865][ T28] synchronize_rcu_expedited+0x39a/0x670 [ 861.374546][ T28] ? wait_rcu_exp_gp+0x40/0x40 [ 861.379339][ T28] ? lock_chain_count+0x20/0x20 [ 861.384328][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 861.390167][ T28] ? __lock_acquire+0x166e/0x56d0 [ 861.395265][ T28] ? rcu_exp_wait_wake+0xf80/0xf80 [ 861.400458][ T28] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 861.406528][ T28] synchronize_rcu+0x2c3/0x370 [ 861.411321][ T28] ? synchronize_rcu_expedited+0x670/0x670 [ 861.417231][ T28] ? find_held_lock+0x2d/0x110 [ 861.422022][ T28] ? __unregister_prot_hook+0x485/0x5a0 [ 861.428003][ T28] synchronize_net+0x4a/0x50 [ 861.432681][ T28] __unregister_prot_hook+0x48a/0x5a0 [ 861.438087][ T28] packet_do_bind+0x8bc/0xdc0 [ 861.442821][ T28] packet_bind+0x152/0x1b0 [ 861.447253][ T28] __sys_bind+0x1e9/0x250 [ 861.451639][ T28] ? __ia32_sys_socketpair+0xf0/0xf0 [ 861.456988][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 861.462962][ T28] ? syscall_enter_from_user_mode+0x22/0xb0 [ 861.468861][ T28] __x64_sys_bind+0x6f/0xb0 [ 861.473442][ T28] do_syscall_64+0x35/0xb0 [ 861.477879][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 861.483818][ T28] RIP: 0033:0x7f5333561ce7 [ 861.488248][ T28] RSP: 002b:00007ffdc760c698 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 [ 861.496703][ T28] RAX: ffffffffffffffda RBX: 00005576b9cefb60 RCX: 00007f5333561ce7 [ 861.504715][ T28] RDX: 0000000000000014 RSI: 00007ffdc760c6a8 RDI: 0000000000000005 [ 861.512781][ T28] RBP: 0000000000000000 R08: 00005576bbcd79d0 R09: 00007f5333622a60 [ 861.520768][ T28] R10: 0000000000020000 R11: 0000000000000217 R12: 00005576bbcd6240 [ 861.528791][ T28] R13: 00005576bbcd78b8 R14: 00007ffdc762cf7c R15: 00007ffdc762cfa4 [ 861.536858][ T28] [ 861.539885][ T28] 2 locks held by dhcpcd/3666: [ 861.544680][ T28] #0: ffff888073ab0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 [ 861.554510][ T28] #1: ffffffff8bf941b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x562/0x670 [ 861.565521][ T28] [ 861.567955][ T28] ============================================= [ 861.567955][ T28] [ 861.576422][ T28] NMI backtrace for cpu 1 [ 861.580791][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-next-20220809-syzkaller #0 [ 861.589802][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 861.599847][ T28] Call Trace: [ 861.603120][ T28] [ 861.606076][ T28] dump_stack_lvl+0xcd/0x134 [ 861.610723][ T28] nmi_cpu_backtrace.cold+0x46/0x14f [ 861.616005][ T28] ? lapic_can_unplug_cpu+0x80/0x80 [ 861.621203][ T28] nmi_trigger_cpumask_backtrace+0x206/0x250 [ 861.627181][ T28] watchdog+0xcf7/0xfd0 [ 861.631341][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 861.637370][ T28] kthread+0x2e4/0x3a0 [ 861.641444][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 861.647075][ T28] ret_from_fork+0x1f/0x30 [ 861.651505][ T28] [ 861.654586][ T28] Sending NMI from CPU 1 to CPUs 0: [ 861.659820][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x6f/0xb0 [ 861.660797][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 861.675779][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-next-20220809-syzkaller #0 [ 861.684827][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 861.694884][ T28] Call Trace: [ 861.698160][ T28] [ 861.701090][ T28] dump_stack_lvl+0xcd/0x134 [ 861.705687][ T28] panic+0x2c8/0x627 [ 861.709613][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b [ 861.715601][ T28] ? irq_work_claim+0x76/0x90 [ 861.720293][ T28] ? lapic_can_unplug_cpu+0x80/0x80 [ 861.725545][ T28] ? irq_work_queue+0x29/0x80 [ 861.730233][ T28] ? watchdog.cold+0x135/0x426 [ 861.735064][ T28] watchdog.cold+0x146/0x426 [ 861.739693][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 861.745714][ T28] kthread+0x2e4/0x3a0 [ 861.749808][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 861.755462][ T28] ret_from_fork+0x1f/0x30 [ 861.759911][ T28] [ 861.763218][ T28] Kernel Offset: disabled [ 861.767555][ T28] Rebooting in 86400 seconds..