[ 29.653692][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 38.798226][ T27] kauditd_printk_skb: 37 callbacks suppressed
[ 38.798242][ T27] audit: type=1400 audit(1662357328.897:73): avc: denied { transition } for pid=3392 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 38.828866][ T27] audit: type=1400 audit(1662357328.927:74): avc: denied { write } for pid=3392 comm="sh" path="pipe:[28266]" dev="pipefs" ino=28266 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[ 76.192812][ T14] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.75' (ECDSA) to the list of known hosts.
executing program
[ 492.246144][ T27] audit: type=1400 audit(1662357782.347:75): avc: denied { execmem } for pid=3634 comm="syz-executor364" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 492.266169][ T27] audit: type=1400 audit(1662357782.347:76): avc: denied { read } for pid=3635 comm="syz-executor364" name="nbd0" dev="devtmpfs" ino=660 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 492.290211][ T27] audit: type=1400 audit(1662357782.347:77): avc: denied { open } for pid=3635 comm="syz-executor364" path="/dev/nbd0" dev="devtmpfs" ino=660 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 492.314440][ T27] audit: type=1400 audit(1662357782.347:78): avc: denied { ioctl } for pid=3635 comm="syz-executor364" path="/dev/nbd0" dev="devtmpfs" ino=660 ioctlcmd=0xab07 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 492.342946][ T3635] nbd0: detected capacity change from 0 to 258
[ 497.247596][ T3635] block nbd0: shutting down sockets
[ 522.910839][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 30 seconds
[ 552.426604][ T2971] udevd[2971]: worker [3637] /devices/virtual/block/nbd0 is taking a long time
[ 552.990463][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 60 seconds
[ 583.070461][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 90 seconds
[ 613.150471][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 120 seconds
[ 643.230464][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 672.592883][ T2971] udevd[2971]: worker [3637] /devices/virtual/block/nbd0 timeout; kill it
[ 672.602391][ T3637] ldm_validate_partition_table(): Disk read failed.
[ 672.609076][ T3637] Dev nbd0: unable to read RDB block 0
[ 672.614676][ T2971] udevd[2971]: seq 7474 '/devices/virtual/block/nbd0' killed
[ 672.615552][ T3637] nbd0: unable to read partition table
[ 672.627750][ T3637] nbd0: partition table beyond EOD, truncated
[ 672.639254][ T3644] nbd0: detected capacity change from 0 to 258
[ 672.640910][ T2971] udevd[2971]: worker [3637] terminated by signal 9 (Killed)
[ 672.652995][ T2971] udevd[2971]: worker [3637] failed while handling '/devices/virtual/block/nbd0'
[ 673.310423][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 180 seconds
[ 703.390393][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 210 seconds
[ 732.746728][ T2971] udevd[2971]: worker [3645] /devices/virtual/block/nbd0 is taking a long time
[ 733.470456][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 240 seconds
[ 763.550485][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 270 seconds
[ 793.630507][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 300 seconds
[ 823.710454][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 330 seconds
[ 852.905881][ T2971] udevd[2971]: worker [3645] /devices/virtual/block/nbd0 timeout; kill it
[ 852.914653][ T2971] udevd[2971]: seq 7475 '/devices/virtual/block/nbd0' killed
[ 853.790510][ T52] block nbd0: Possible stuck request ffff88801f2f0000: control (read@0,4096B). Runtime 360 seconds
[ 859.550577][ T28] INFO: task syz-executor364:3644 blocked for more than 143 seconds.
[ 859.558772][ T28] Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b #0
[ 859.566459][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.575204][ T28] task:syz-executor364 state:D stack:27536 pid: 3644 ppid: 3634 flags:0x00000004
[ 859.584478][ T28] Call Trace:
[ 859.587791][ T28]
[ 859.590767][ T28] __schedule+0xadf/0x52b0
[ 859.595246][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.600573][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.606446][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.612308][ T28] schedule+0xda/0x1b0
[ 859.616392][ T28] blk_mq_freeze_queue_wait+0x112/0x160
[ 859.622043][ T28] ? blk_mq_queue_inflight+0xa0/0xa0
[ 859.627341][ T28] ? blk_mq_run_hw_queue+0x490/0x490
[ 859.632668][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 859.638512][ T28] nbd_add_socket+0x166/0x810
[ 859.643272][ T28] ? cap_capable+0x1f1/0x280
[ 859.647936][ T28] ? status_cb+0x20/0x20
[ 859.652254][ T28] ? security_capable+0x8f/0xc0
[ 859.657122][ T28] nbd_ioctl+0x4ab/0xbd0
[ 859.661424][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 859.666232][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.671307][ T28] ? __ct_user_exit+0xff/0x150
[ 859.676083][ T28] ? lock_downgrade+0x6cb/0x6e0
[ 859.680993][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.686041][ T28] blkdev_ioctl+0x36e/0x800
[ 859.690614][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.696108][ T28] ? selinux_file_ioctl+0xb1/0x270
[ 859.701344][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.706817][ T28] __x64_sys_ioctl+0x193/0x200
[ 859.711723][ T28] do_syscall_64+0x35/0xb0
[ 859.716220][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.722168][ T28] RIP: 0033:0x7f5e3e358399
[ 859.726591][ T28] RSP: 002b:00007ffdf22867c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.735081][ T28] RAX: ffffffffffffffda RBX: 00000000000782be RCX: 00007f5e3e358399
[ 859.743088][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 859.751103][ T28] RBP: 0000000000000000 R08: 00007ffdf2286968 R09: 00007ffdf2286968
[ 859.759111][ T28] R10: 00007ffdf2286968 R11: 0000000000000246 R12: 00007ffdf22867dc
[ 859.767294][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 859.775385][ T28]
[ 859.778421][ T28] INFO: task udevd:3645 blocked for more than 143 seconds.
[ 859.785702][ T28] Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b #0
[ 859.793286][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.801984][ T28] task:udevd state:D stack:27648 pid: 3645 ppid: 2971 flags:0x00004004
[ 859.811229][ T28] Call Trace:
[ 859.816104][ T28]
[ 859.819049][ T28] __schedule+0xadf/0x52b0
[ 859.823567][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.828885][ T28] ? mark_held_locks+0x9f/0xe0
[ 859.833730][ T28] schedule+0xda/0x1b0
[ 859.837827][ T28] io_schedule+0xba/0x130
[ 859.842212][ T28] folio_wait_bit_common+0x3dd/0xa90
[ 859.847514][ T28] ? perf_trace_mm_filemap_op_page_cache+0x8c0/0x8c0
[ 859.854235][ T28] ? filemap_add_folio+0x1d0/0x1d0
[ 859.859366][ T28] ? folio_unlock+0xc0/0xc0
[ 859.863908][ T28] ? enable_ptr_key_workfn+0x20/0x20
[ 859.869227][ T28] do_read_cache_folio+0x2c0/0x510
[ 859.874379][ T28] ? blkdev_writepages+0x20/0x20
[ 859.879390][ T28] read_part_sector+0xf6/0x440
[ 859.884226][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.889521][ T28] adfspart_check_ICS+0x9a/0x890
[ 859.894499][ T28] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240
[ 859.901317][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.906593][ T28] ? snprintf+0xbb/0xf0
[ 859.910790][ T28] ? vsprintf+0x30/0x30
[ 859.914980][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.920332][ T28] bdev_disk_changed+0x629/0xf60
[ 859.925281][ T28] ? iput.part.0+0x73/0x810
[ 859.929775][ T28] blkdev_get_whole+0x18a/0x2d0
[ 859.934684][ T28] blkdev_get_by_dev.part.0+0x5ec/0xb90
[ 859.940253][ T28] ? devcgroup_check_permission+0x1a6/0x430
[ 859.946257][ T28] blkdev_get_by_dev+0x6b/0x80
[ 859.951090][ T28] blkdev_open+0x13c/0x2c0
[ 859.955532][ T28] do_dentry_open+0x4a4/0x13a0
[ 859.960372][ T28] ? blkdev_close+0x80/0x80
[ 859.964896][ T28] path_openat+0x1c92/0x28f0
[ 859.969510][ T28] ? path_lookupat+0x840/0x840
[ 859.974843][ T28] do_filp_open+0x1b6/0x400
[ 859.979367][ T28] ? may_open_dev+0xf0/0xf0
[ 859.984875][ T28] ? find_held_lock+0x2d/0x110
[ 859.989667][ T28] ? do_raw_spin_lock+0x120/0x2a0
[ 859.994887][ T28] ? rwlock_bug.part.0+0x90/0x90
[ 859.999842][ T28] ? _find_next_bit+0x1e3/0x260
[ 860.004924][ T28] ? _raw_spin_unlock+0x24/0x40
[ 860.009804][ T28] ? alloc_fd+0x2f0/0x6f0
[ 860.014308][ T28] do_sys_openat2+0x16d/0x4c0
[ 860.019022][ T28] ? build_open_flags+0x6f0/0x6f0
[ 860.024228][ T28] ? up_write+0x470/0x470
[ 860.028580][ T28] __x64_sys_openat+0x13f/0x1f0
[ 860.033592][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 860.038554][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.044653][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.050686][ T28] do_syscall_64+0x35/0xb0
[ 860.055118][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.061173][ T28] RIP: 0033:0x7f0d1c525697
[ 860.065598][ T28] RSP: 002b:00007ffffa2b4140 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.074170][ T28] RAX: ffffffffffffffda RBX: 00005558361ee6c0 RCX: 00007f0d1c525697
[ 860.082274][ T28] RDX: 00000000000a0800 RSI: 00005558361c14f0 RDI: 00000000ffffff9c
[ 860.090490][ T28] RBP: 00005558361c14f0 R08: 0000000000000001 R09: 00007ffffa3b7080
[ 860.098478][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 860.106497][ T28] R13: 00005558361e6b20 R14: 00007ffffa2b41ec R15: 00005558361b52c0
[ 860.114581][ T28]
[ 860.118723][ T28]
[ 860.118723][ T28] Showing all locks held in the system:
[ 860.126497][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.131815][ T28] #0: ffffffff8bf85d30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.142318][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.147587][ T28] #0: ffffffff8bf85a30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.158602][ T28] 1 lock held by khungtaskd/28:
[ 860.163470][ T28] #0: ffffffff8bf86880 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 860.173394][ T28] 2 locks held by getty/3285:
[ 860.178068][ T28] #0: ffff88801ca71098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 860.187895][ T28] #1: ffffc90001c282f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[ 860.198132][ T28] 1 lock held by syz-executor364/3644:
[ 860.203934][ T28] #0: ffff88801f286998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 860.213421][ T28] 1 lock held by udevd/3645:
[ 860.218022][ T28] #0: ffff88801f28a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.228645][ T28]
[ 860.231011][ T28] =============================================
[ 860.231011][ T28]
[ 860.239408][ T28] NMI backtrace for cpu 1
[ 860.243717][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b #0
[ 860.253511][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.263549][ T28] Call Trace:
[ 860.266811][ T28]
[ 860.269730][ T28] dump_stack_lvl+0xcd/0x134
[ 860.274362][ T28] nmi_cpu_backtrace.cold+0x46/0x14f
[ 860.279645][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.284833][ T28] nmi_trigger_cpumask_backtrace+0x206/0x250
[ 860.290843][ T28] watchdog+0xc18/0xf50
[ 860.294987][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.300959][ T28] kthread+0x2e4/0x3a0
[ 860.305028][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.310648][ T28] ret_from_fork+0x1f/0x30
[ 860.315054][ T28]
[ 860.318150][ T28] Sending NMI from CPU 1 to CPUs 0:
[ 860.323413][ C0] NMI backtrace for cpu 0
[ 860.323422][ C0] CPU: 0 PID: 92 Comm: kworker/u4:4 Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b #0
[ 860.323444][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.323455][ C0] Workqueue: events_unbound toggle_allocation_gate
[ 860.323479][ C0] RIP: 0010:lock_is_held_type+0xea/0x140
[ 860.323506][ C0] Code: c0 45 31 ed 44 39 f0 41 0f 94 c5 48 c7 c7 00 95 ec 89 e8 c9 14 00 00 b8 ff ff ff ff 65 0f c1 05 44 3d 83 76 83 f8 01 75 29 9c <58> f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 44
[ 860.323528][ C0] RSP: 0018:ffffc90001c3f848 EFLAGS: 00000046
[ 860.323542][ C0] RAX: 0000000000000001 RBX: 0000000000000005 RCX: 0000000000000001
[ 860.323554][ C0] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[ 860.323565][ C0] RBP: ffffffff8bf867c0 R08: 0000000000000000 R09: ffffffff8dddfa17
[ 860.323577][ C0] R10: fffffbfff1bbbf42 R11: 0000000000000000 R12: ffff8880184640c0
[ 860.323589][ C0] R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888018464bd8
[ 860.323601][ C0] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[ 860.323619][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.323632][ C0] CR2: 000055763c5fb600 CR3: 000000000bc8e000 CR4: 00000000003506f0
[ 860.323644][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.323655][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.323666][ C0] Call Trace:
[ 860.323671][ C0]
[ 860.323677][ C0] rcu_read_lock_sched_held+0x3a/0x70
[ 860.323696][ C0] lock_acquire+0x480/0x570
[ 860.323714][ C0] ? lock_release+0x780/0x780
[ 860.323732][ C0] ? __text_poke+0x47a/0x8e0
[ 860.323749][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 860.323767][ C0] _raw_spin_lock+0x2a/0x40
[ 860.323785][ C0] ? __get_locked_pte+0x154/0x270
[ 860.323807][ C0] __get_locked_pte+0x154/0x270
[ 860.323828][ C0] ? kmem_cache_alloc_bulk+0x150/0x470
[ 860.323852][ C0] __text_poke+0x1b3/0x8e0
[ 860.323868][ C0] ? cpumask_weight+0x40/0x40
[ 860.323886][ C0] ? text_poke_memset+0x60/0x60
[ 860.323904][ C0] text_poke_bp_batch+0x44a/0x6c0
[ 860.323921][ C0] ? kmem_cache_alloc_bulk+0x150/0x470
[ 860.323944][ C0] ? do_sync_core+0x20/0x20
[ 860.323961][ C0] ? __jump_label_update+0x296/0x410
[ 860.323981][ C0] text_poke_finish+0x16/0x30
[ 860.323998][ C0] arch_jump_label_transform_apply+0x13/0x20
[ 860.324022][ C0] jump_label_update+0x32f/0x410
[ 860.324042][ C0] static_key_enable_cpuslocked+0x1b1/0x260
[ 860.324062][ C0] static_key_enable+0x16/0x20
[ 860.324080][ C0] toggle_allocation_gate+0x100/0x390
[ 860.324100][ C0] ? lock_release+0x780/0x780
[ 860.324117][ C0] ? wake_up_kfence_timer+0x20/0x20
[ 860.324136][ C0] ? lockdep_hardirqs_on+0x79/0x100
[ 860.324158][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 860.324178][ C0] process_one_work+0x991/0x1610
[ 860.324201][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 860.324222][ C0] ? rwlock_bug.part.0+0x90/0x90
[ 860.324240][ C0] ? _raw_spin_lock_irq+0x41/0x50
[ 860.324259][ C0] worker_thread+0x665/0x1080
[ 860.324279][ C0] ? __kthread_parkme+0x15f/0x220
[ 860.324297][ C0] ? process_one_work+0x1610/0x1610
[ 860.324317][ C0] kthread+0x2e4/0x3a0
[ 860.324334][ C0] ? kthread_complete_and_exit+0x40/0x40
[ 860.324353][ C0] ret_from_fork+0x1f/0x30
[ 860.324376][ C0]
[ 860.324412][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.661077][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b #0
[ 860.670899][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.680954][ T28] Call Trace:
[ 860.684232][ T28]
[ 860.687165][ T28] dump_stack_lvl+0xcd/0x134
[ 860.691791][ T28] panic+0x2c8/0x627
[ 860.695714][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 860.701705][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.706908][ T28] ? preempt_schedule_thunk+0x16/0x18
[ 860.712288][ T28] ? watchdog.cold+0x130/0x158
[ 860.717071][ T28] watchdog.cold+0x141/0x158
[ 860.721679][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.727687][ T28] kthread+0x2e4/0x3a0
[ 860.731777][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.737429][ T28] ret_from_fork+0x1f/0x30
[ 860.741858][ T28]
[ 860.745159][ T28] Kernel Offset: disabled
[ 860.749521][ T28] Rebooting in 86400 seconds..