DUID 00:04:2f:bc:f2:2f:e4:1d:55:f7:99:3b:0f:15:66:5c:e9:07
forked to background, child pid 3186
[ 26.049059][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0
[ 26.062056][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.274944][ T15] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.10.56' (ECDSA) to the list of known hosts.
executing program
[ 496.565428][ T3637] nbd0: detected capacity change from 0 to 14
[ 501.525080][ T3637] block nbd0: shutting down sockets
[ 526.833576][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 30 seconds
[ 556.648549][ T2974] udevd[2974]: worker [3639] /devices/virtual/block/nbd0 is taking a long time
[ 556.913207][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 60 seconds
[ 586.993205][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 90 seconds
[ 617.073165][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 120 seconds
[ 647.153153][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 676.815640][ T2974] udevd[2974]: worker [3639] /devices/virtual/block/nbd0 timeout; kill it
[ 676.824798][ T3639] ldm_validate_partition_table(): Disk read failed.
[ 676.831454][ T3639] Dev nbd0: unable to read RDB block 0
[ 676.833197][ T2974] udevd[2974]: seq 7473 '/devices/virtual/block/nbd0' killed
[ 676.837817][ T3639] nbd0: unable to read partition table
[ 676.850003][ T3639] nbd0: partition table beyond EOD, truncated
[ 676.860182][ T3646] nbd0: detected capacity change from 0 to 14
[ 676.862134][ T2974] udevd[2974]: worker [3639] terminated by signal 9 (Killed)
[ 676.873823][ T2974] udevd[2974]: worker [3639] failed while handling '/devices/virtual/block/nbd0'
[ 677.233110][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 180 seconds
[ 707.313160][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 210 seconds
[ 736.967780][ T2974] udevd[2974]: worker [3647] /devices/virtual/block/nbd0 is taking a long time
[ 737.393138][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 240 seconds
[ 767.473093][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 270 seconds
[ 797.553107][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 300 seconds
[ 827.633068][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 330 seconds
[ 857.126874][ T2974] udevd[2974]: worker [3647] /devices/virtual/block/nbd0 timeout; kill it
[ 857.135734][ T2974] udevd[2974]: seq 7474 '/devices/virtual/block/nbd0' killed
[ 857.713076][ T109] block nbd0: Possible stuck request ffff88801e6f8000: control (read@0,4096B). Runtime 360 seconds
[ 859.633163][ T29] INFO: task syz-executor287:3646 blocked for more than 143 seconds.
[ 859.641326][ T29] Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
[ 859.649003][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.657815][ T29] task:syz-executor287 state:D stack:25744 pid: 3646 ppid: 3636 flags:0x00004004
[ 859.667325][ T29] Call Trace:
[ 859.670715][ T29]
[ 859.673957][ T29] __schedule+0x957/0xe20
[ 859.678426][ T29] ? release_firmware_map_entry+0x184/0x184
[ 859.684525][ T29] ? sbitmap_any_bit_set+0x155/0x190
[ 859.689906][ T29] ? prepare_to_wait_event+0x444/0x540
[ 859.695655][ T29] schedule+0xcb/0x190
[ 859.699739][ T29] blk_mq_freeze_queue_wait+0x105/0x190
[ 859.705555][ T29] ? blk_mq_run_hw_queues+0x370/0x370
[ 859.710999][ T29] ? wake_bit_function+0x240/0x240
[ 859.716405][ T29] ? percpu_ref_kill_and_confirm+0x9c/0x130
[ 859.722346][ T29] ? unix_listen+0x2b0/0x2b0
[ 859.727167][ T29] nbd_add_socket+0x17b/0x8e0
[ 859.731908][ T29] ? refcount_inc+0x80/0x80
[ 859.736649][ T29] ? bpf_lsm_capable+0x5/0x10
[ 859.741392][ T29] ? security_capable+0xb1/0xd0
[ 859.746486][ T29] nbd_ioctl+0x260/0xa40
[ 859.750746][ T29] ? nbd_release+0x130/0x130
[ 859.755586][ T29] ? memset+0x1f/0x40
[ 859.759659][ T29] ? smack_file_ioctl+0x298/0x3a0
[ 859.764832][ T29] ? smack_file_alloc_security+0xd0/0xd0
[ 859.770597][ T29] ? nbd_release+0x130/0x130
[ 859.775407][ T29] blkdev_ioctl+0x3a6/0x760
[ 859.780000][ T29] ? blkdev_compat_ptr_ioctl+0xd0/0xd0
[ 859.785770][ T29] ? vtime_user_exit+0x2b2/0x3e0
[ 859.790732][ T29] ? __ct_user_exit+0x81/0xe0
[ 859.795771][ T29] ? bpf_lsm_file_ioctl+0x5/0x10
[ 859.800765][ T29] ? security_file_ioctl+0x9d/0xb0
[ 859.806149][ T29] ? blkdev_compat_ptr_ioctl+0xd0/0xd0
[ 859.811625][ T29] __se_sys_ioctl+0xfb/0x170
[ 859.816573][ T29] do_syscall_64+0x2b/0x70
[ 859.821021][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.827129][ T29] RIP: 0033:0x7feb05d98399
[ 859.831565][ T29] RSP: 002b:00007fffd8e74888 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.840294][ T29] RAX: ffffffffffffffda RBX: 000000000007936f RCX: 00007feb05d98399
[ 859.848467][ T29] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 859.856640][ T29] RBP: 0000000000000000 R08: 00007fffd8e74a28 R09: 00007fffd8e74a28
[ 859.864756][ T29] R10: 00007fffd8e74a28 R11: 0000000000000246 R12: 00007fffd8e7489c
[ 859.872742][ T29] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 859.881126][ T29]
[ 859.884256][ T29] INFO: task udevd:3647 blocked for more than 143 seconds.
[ 859.891569][ T29] Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
[ 859.899649][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.908473][ T29] task:udevd state:D stack:25712 pid: 3647 ppid: 2974 flags:0x00004004
[ 859.917853][ T29] Call Trace:
[ 859.921140][ T29]
[ 859.924251][ T29] __schedule+0x957/0xe20
[ 859.928608][ T29] ? release_firmware_map_entry+0x184/0x184
[ 859.934710][ T29] ? lockdep_hardirqs_on_prepare+0x448/0x7b0
[ 859.940773][ T29] ? print_irqtrace_events+0x220/0x220
[ 859.946424][ T29] ? _raw_spin_lock_irq+0xdb/0x110
[ 859.951554][ T29] schedule+0xcb/0x190
[ 859.955814][ T29] io_schedule+0x83/0x100
[ 859.960159][ T29] folio_wait_bit_common+0x98a/0x14b0
[ 859.965774][ T29] ? folio_wait_bit+0x20/0x20
[ 859.970464][ T29] ? pfn_swap_entry_to_page+0x320/0x320
[ 859.976240][ T29] ? vsnprintf+0x1ce0/0x1ce0
[ 859.980848][ T29] ? string+0x289/0x2d0
[ 859.985169][ T29] do_read_cache_folio+0xb9/0x790
[ 859.990204][ T29] ? blkdev_writepage+0x30/0x30
[ 859.995448][ T29] read_part_sector+0xcc/0x390
[ 860.000260][ T29] adfspart_check_ICS+0xd4/0x950
[ 860.005273][ T29] ? adfspart_check_ADFS+0x5c0/0x5c0
[ 860.010676][ T29] ? snprintf+0xd6/0x120
[ 860.015091][ T29] ? zone_statistics+0x160/0x160
[ 860.020067][ T29] ? vsnprintf+0x1bf8/0x1ce0
[ 860.024836][ T29] ? vsnprintf+0x1af/0x1ce0
[ 860.029348][ T29] ? vscnprintf+0x80/0x80
[ 860.033856][ T29] ? alloc_pages+0x520/0x7b0
[ 860.038513][ T29] ? bdev_disk_changed+0x53a/0x1420
[ 860.043888][ T29] bdev_disk_changed+0x79d/0x1420
[ 860.049110][ T29] ? blk_drop_partitions+0x1b0/0x1b0
[ 860.054591][ T29] ? _atomic_dec_and_lock+0x85/0x110
[ 860.059891][ T29] ? iput+0x198/0x760
[ 860.064057][ T29] blkdev_get_whole+0x329/0x3b0
[ 860.069445][ T29] blkdev_get_by_dev+0x30b/0xa40
[ 860.074578][ T29] blkdev_open+0x128/0x2e0
[ 860.079009][ T29] ? blkdev_write_iter+0x750/0x750
[ 860.084276][ T29] do_dentry_open+0x777/0x1180
[ 860.089125][ T29] path_openat+0x260e/0x2e00
[ 860.093905][ T29] ? mark_lock+0x9a/0x350
[ 860.098257][ T29] ? do_filp_open+0x500/0x500
[ 860.102986][ T29] ? alloc_fd+0x5ca/0x670
[ 860.107322][ T29] ? rcu_read_lock_sched_held+0x89/0x130
[ 860.113248][ T29] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 860.119283][ T29] do_filp_open+0x275/0x500
[ 860.123907][ T29] ? vfs_tmpfile+0x2e0/0x2e0
[ 860.128555][ T29] ? _raw_spin_unlock+0x24/0x40
[ 860.133485][ T29] ? alloc_fd+0x5ca/0x670
[ 860.137830][ T29] do_sys_openat2+0x13b/0x500
[ 860.142498][ T29] ? read_lock_is_recursive+0x10/0x10
[ 860.147940][ T29] ? __ct_user_exit+0x81/0xe0
[ 860.152633][ T29] ? do_sys_open+0x220/0x220
[ 860.157300][ T29] __x64_sys_openat+0x243/0x290
[ 860.162161][ T29] ? __ia32_sys_open+0x270/0x270
[ 860.167127][ T29] ? __ct_user_exit+0x81/0xe0
[ 860.171813][ T29] ? syscall_enter_from_user_mode+0x2e/0x1d0
[ 860.177849][ T29] ? syscall_enter_from_user_mode+0x2e/0x1d0
[ 860.183859][ T29] do_syscall_64+0x2b/0x70
[ 860.188268][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.194209][ T29] RIP: 0033:0x7f653d325697
[ 860.198632][ T29] RSP: 002b:00007ffd56ded450 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.207074][ T29] RAX: ffffffffffffffda RBX: 000055746bee15c0 RCX: 00007f653d325697
[ 860.215089][ T29] RDX: 00000000000a0800 RSI: 000055746beb6810 RDI: 00000000ffffff9c
[ 860.223088][ T29] RBP: 000055746beb6810 R08: 0000000000000001 R09: 0000000000000010
[ 860.231065][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 860.239200][ T29] R13: 000055746bed9280 R14: 00007ffd56ded4fc R15: 000055746beb5910
[ 860.247231][ T29]
[ 860.250285][ T29]
[ 860.250285][ T29] Showing all locks held in the system:
[ 860.258068][ T29] 1 lock held by rcu_tasks_kthre/13:
[ 860.263379][ T29] #0: ffffffff8cd20d70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00
[ 860.273936][ T29] 1 lock held by rcu_tasks_trace/14:
[ 860.279229][ T29] #0: ffffffff8cd21570 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00
[ 860.290255][ T29] 1 lock held by khungtaskd/29:
[ 860.295180][ T29] #0: ffffffff8cd20ba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 860.304566][ T29] 2 locks held by getty/3283:
[ 860.309243][ T29] #0: ffff888027c1f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 860.319138][ T29] #1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50
[ 860.329310][ T29] 1 lock held by syz-executor287/3646:
[ 860.334834][ T29] #0: ffff88801e51e998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13e/0xa40
[ 860.344236][ T29] 1 lock held by udevd/3647:
[ 860.348815][ T29] #0: ffff88801e67a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfd/0xa40
[ 860.358802][ T29]
[ 860.361130][ T29] =============================================
[ 860.361130][ T29]
[ 860.369607][ T29] NMI backtrace for cpu 0
[ 860.373940][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
[ 860.383738][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 860.393789][ T29] Call Trace:
[ 860.397065][ T29]
[ 860.399999][ T29] dump_stack_lvl+0x1e3/0x2cb
[ 860.404678][ T29] ? io_alloc_page_table+0x110/0x110
[ 860.409959][ T29] ? panic+0x76b/0x76b
[ 860.414090][ T29] ? console_unlock+0x6bd/0x6f0
[ 860.418952][ T29] ? console_trylock_spinning+0x450/0x450
[ 860.424670][ T29] ? nmi_cpu_backtrace+0x248/0x4b0
[ 860.429785][ T29] nmi_cpu_backtrace+0x47c/0x4b0
[ 860.434720][ T29] ? vprintk_emit+0x109/0x1e0
[ 860.439402][ T29] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 860.445636][ T29] ? _printk+0xcf/0x10f
[ 860.449796][ T29] ? panic+0x76b/0x76b
[ 860.453861][ T29] ? __wake_up_klogd+0xcd/0x100
[ 860.458732][ T29] ? panic+0x76b/0x76b
[ 860.462824][ T29] ? __rcu_read_unlock+0x8f/0x100
[ 860.467880][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.474065][ T29] nmi_trigger_cpumask_backtrace+0x169/0x280
[ 860.480058][ T29] watchdog+0xcd5/0xd20
[ 860.484258][ T29] kthread+0x266/0x300
[ 860.488369][ T29] ? hungtask_pm_notify+0x50/0x50
[ 860.493388][ T29] ? kthread_blkcg+0xd0/0xd0
[ 860.497999][ T29] ret_from_fork+0x1f/0x30
[ 860.502525][ T29]
[ 860.505652][ T29] Sending NMI from CPU 0 to CPUs 1:
[ 860.510881][ C1] NMI backtrace for cpu 1
[ 860.510891][ C1] CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
[ 860.510905][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 860.510914][ C1] Workqueue: events_unbound toggle_allocation_gate
[ 860.510935][ C1] RIP: 0010:switch_mm_irqs_off+0x4dc/0x8f0
[ 860.511022][ C1] Code: 04 00 00 e8 d6 f4 ff ff 41 0f b7 cc 81 f9 ff 0f 00 00 48 8b 5c 24 10 0f 83 ac 01 00 00 41 ff c4 41 0f b7 cc 48 09 c8 0f 22 d8 <48> c7 c6 ff ff ff ff e9 ae 00 00 00 49 8d 5f 50 48 89 d8 48 c1 e8
[ 860.511033][ C1] RSP: 0018:ffffc900001176e0 EFLAGS: 00000093
[ 860.511044][ C1] RAX: 0000000140133000 RBX: ffffffff8cdf7e60 RCX: ffff88801230d880
[ 860.511054][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 860.511062][ C1] RBP: ffffc900001177d0 R08: ffffffff813debc7 R09: ffffed1002465085
[ 860.511072][ C1] R10: ffffed1002465085 R11: 1ffff11002465084 R12: 0000000000000000
[ 860.511081][ C1] R13: dffffc0000000000 R14: ffff888012328000 R15: 0000000000000000
[ 860.511090][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 860.511102][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.511111][ C1] CR2: 000056295a43a680 CR3: 0000000140133000 CR4: 00000000003506e0
[ 860.511123][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.511131][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.511139][ C1] Call Trace:
[ 860.511144][ C1]
[ 860.511152][ C1] ? switch_mm+0x190/0x190
[ 860.511168][ C1] ? __text_poke+0x2f7/0x9d0
[ 860.511197][ C1] ? lockdep_hardirqs_off+0x71/0x100
[ 860.511214][ C1] ? __text_poke+0x9d0/0x9d0
[ 860.511224][ C1] ? __kmalloc_node+0x100/0x420
[ 860.511239][ C1] __text_poke+0x5c2/0x9d0
[ 860.511252][ C1] ? __kmalloc_node+0x100/0x420
[ 860.511266][ C1] ? __text_poke+0x9d0/0x9d0
[ 860.511279][ C1] ? text_poke+0x90/0x90
[ 860.511290][ C1] ? __kmalloc+0xf7/0x370
[ 860.511302][ C1] ? perf_event_text_poke+0x24f/0x320
[ 860.511326][ C1] ? perf_event_bpf_output+0x240/0x240
[ 860.511348][ C1] text_poke_bp_batch+0x431/0x850
[ 860.511364][ C1] ? __kmalloc_node+0x100/0x420
[ 860.511378][ C1] ? text_poke_loc_init+0x510/0x510
[ 860.511392][ C1] ? __jump_label_update+0x38e/0x3b0
[ 860.511411][ C1] text_poke_finish+0x16/0x30
[ 860.511423][ C1] arch_jump_label_transform_apply+0x13/0x20
[ 860.511454][ C1] static_key_disable_cpuslocked+0xc8/0x1b0
[ 860.511471][ C1] static_key_disable+0x16/0x20
[ 860.511486][ C1] toggle_allocation_gate+0x3d8/0x470
[ 860.511505][ C1] ? virt_to_slab+0x2c0/0x2c0
[ 860.511521][ C1] ? rcu_read_lock_sched_held+0x89/0x130
[ 860.511537][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 860.511551][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 860.511574][ C1] process_one_work+0x81c/0xd10
[ 860.511614][ C1] ? worker_detach_from_pool+0x260/0x260
[ 860.511631][ C1] ? _raw_spin_lock_irqsave+0x120/0x120
[ 860.511645][ C1] ? kthread_data+0x4d/0xc0
[ 860.511661][ C1] ? wq_worker_running+0x95/0x190
[ 860.511677][ C1] worker_thread+0xb14/0x1330
[ 860.511706][ C1] kthread+0x266/0x300
[ 860.511719][ C1] ? rcu_lock_release+0x20/0x20
[ 860.511733][ C1] ? kthread_blkcg+0xd0/0xd0
[ 860.511747][ C1] ret_from_fork+0x1f/0x30
[ 860.511769][ C1]
[ 860.511877][ T29] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.843257][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
[ 860.853055][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 860.863106][ T29] Call Trace:
[ 860.866383][ T29]
[ 860.869312][ T29] dump_stack_lvl+0x1e3/0x2cb
[ 860.873990][ T29] ? io_alloc_page_table+0x110/0x110
[ 860.879270][ T29] ? panic+0x76b/0x76b
[ 860.883347][ T29] ? vscnprintf+0x59/0x80
[ 860.887674][ T29] panic+0x316/0x76b
[ 860.891563][ T29] ? asm_sysvec_call_function_single+0x16/0x20
[ 860.897783][ T29] ? nmi_trigger_cpumask_backtrace+0x205/0x280
[ 860.903938][ T29] ? fb_is_primary_device+0xcc/0xcc
[ 860.909139][ T29] ? irq_work_queue+0xbb/0x120
[ 860.913951][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.920016][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.926084][ T29] watchdog+0xd16/0xd20
[ 860.930248][ T29] kthread+0x266/0x300
[ 860.934313][ T29] ? hungtask_pm_notify+0x50/0x50
[ 860.939331][ T29] ? kthread_blkcg+0xd0/0xd0
[ 860.943927][ T29] ret_from_fork+0x1f/0x30
[ 860.948356][ T29]
[ 860.951664][ T29] Kernel Offset: disabled
[ 860.955998][ T29] Rebooting in 86400 seconds..