[ 29.710127][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 39.382684][ T27] kauditd_printk_skb: 37 callbacks suppressed
[ 39.382700][ T27] audit: type=1400 audit(1663610073.783:73): avc: denied { transition } for pid=3400 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
[ 39.411217][ T27] audit: type=1400 audit(1663610073.793:74): avc: denied { write } for pid=3400 comm="sh" path="pipe:[28139]" dev="pipefs" ino=28139 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[ 76.268754][ T14] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.103' (ECDSA) to the list of known hosts.
executing program
[ 491.585243][ T27] audit: type=1400 audit(1663610525.983:75): avc: denied { execmem } for pid=3642 comm="syz-executor387" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 491.605132][ T27] audit: type=1400 audit(1663610525.993:76): avc: denied { read } for pid=3643 comm="syz-executor387" 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
[ 491.629392][ T27] audit: type=1400 audit(1663610525.993:77): avc: denied { open } for pid=3643 comm="syz-executor387" 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
[ 491.654143][ T3643] nbd0: detected capacity change from 0 to 137438953472
[ 491.654674][ T27] audit: type=1400 audit(1663610525.993:78): avc: denied { ioctl } for pid=3643 comm="syz-executor387" path="/dev/nbd0" dev="devtmpfs" ino=660 ioctlcmd=0xab02 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 496.587452][ T3643] block nbd0: shutting down sockets
[ 521.706376][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 30 seconds
[ 551.745416][ T2972] udevd[2972]: worker [3645] /devices/virtual/block/nbd0 is taking a long time
[ 551.796358][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 60 seconds
[ 581.866387][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 90 seconds
[ 611.946396][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 120 seconds
[ 642.026426][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 671.906125][ T2972] udevd[2972]: worker [3645] /devices/virtual/block/nbd0 timeout; kill it
[ 671.915438][ T3645] ldm_validate_partition_table(): Disk read failed.
[ 671.915458][ T2972] udevd[2972]: seq 7473 '/devices/virtual/block/nbd0' killed
[ 671.929793][ T3645] Dev nbd0: unable to read RDB block 0
[ 671.935253][ T3645] nbd0: unable to read partition table
[ 671.940975][ T3645] nbd0: partition table beyond EOD, truncated
[ 671.951189][ T3652] nbd0: detected capacity change from 0 to 137438953472
[ 671.953658][ T2972] udevd[2972]: worker [3645] terminated by signal 9 (Killed)
[ 671.965631][ T2972] udevd[2972]: worker [3645] failed while handling '/devices/virtual/block/nbd0'
[ 672.106347][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 180 seconds
[ 702.186447][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 210 seconds
[ 732.057795][ T2972] udevd[2972]: worker [3653] /devices/virtual/block/nbd0 is taking a long time
[ 732.266397][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 240 seconds
[ 762.346370][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 270 seconds
[ 792.426427][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 300 seconds
[ 822.506372][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 330 seconds
[ 852.211895][ T2972] udevd[2972]: worker [3653] /devices/virtual/block/nbd0 timeout; kill it
[ 852.220644][ T2972] udevd[2972]: seq 7474 '/devices/virtual/block/nbd0' killed
[ 852.586404][ T754] block nbd0: Possible stuck request ffff88801e538000: control (read@0,4096B). Runtime 360 seconds
[ 859.626487][ T28] INFO: task syz-executor387:3652 blocked for more than 143 seconds.
[ 859.634684][ T28] Not tainted 6.0.0-rc6-syzkaller #0
[ 859.641235][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.650075][ T28] task:syz-executor387 state:D stack:28376 pid: 3652 ppid: 3642 flags:0x00000004
[ 859.659427][ T28] Call Trace:
[ 859.662712][ T28]
[ 859.665633][ T28] __schedule+0xadf/0x52b0
[ 859.670338][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.675647][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.681628][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.687584][ T28] schedule+0xda/0x1b0
[ 859.691669][ T28] blk_mq_freeze_queue_wait+0x112/0x160
[ 859.697424][ T28] ? blk_mq_queue_inflight+0xa0/0xa0
[ 859.702724][ T28] ? blk_mq_run_hw_queue+0x490/0x490
[ 859.708162][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 859.714030][ T28] nbd_add_socket+0x166/0x810
[ 859.718895][ T28] ? cap_capable+0x1f1/0x280
[ 859.723543][ T28] ? status_cb+0x20/0x20
[ 859.727960][ T28] ? security_capable+0x8f/0xc0
[ 859.732866][ T28] nbd_ioctl+0x4ab/0xbd0
[ 859.737324][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 859.742153][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.747505][ T28] ? __ct_user_exit+0xff/0x150
[ 859.752305][ T28] ? lock_downgrade+0x6cb/0x6e0
[ 859.757214][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.762510][ T28] blkdev_ioctl+0x36e/0x800
[ 859.767170][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.772644][ T28] ? selinux_file_ioctl+0xb1/0x270
[ 859.778020][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.783501][ T28] __x64_sys_ioctl+0x193/0x200
[ 859.788510][ T28] do_syscall_64+0x35/0xb0
[ 859.792976][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.799081][ T28] RIP: 0033:0x7f410c074399
[ 859.803506][ T28] RSP: 002b:00007fff2d5fb438 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.812099][ T28] RAX: ffffffffffffffda RBX: 000000000007801c RCX: 00007f410c074399
[ 859.820203][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 859.828316][ T28] RBP: 0000000000000000 R08: 00007fff2d5fb5d8 R09: 00007fff2d5fb5d8
[ 859.836465][ T28] R10: 00007fff2d5fb5d8 R11: 0000000000000246 R12: 00007fff2d5fb44c
[ 859.844470][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 859.852614][ T28]
[ 859.855653][ T28] INFO: task udevd:3653 blocked for more than 143 seconds.
[ 859.863056][ T28] Not tainted 6.0.0-rc6-syzkaller #0
[ 859.869153][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.877883][ T28] task:udevd state:D stack:27648 pid: 3653 ppid: 2972 flags:0x00004004
[ 859.887194][ T28] Call Trace:
[ 859.890501][ T28]
[ 859.893432][ T28] __schedule+0xadf/0x52b0
[ 859.897968][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.903282][ T28] ? mark_held_locks+0x9f/0xe0
[ 859.908079][ T28] schedule+0xda/0x1b0
[ 859.912168][ T28] io_schedule+0xba/0x130
[ 859.916531][ T28] folio_wait_bit_common+0x3dd/0xa90
[ 859.921842][ T28] ? perf_trace_mm_filemap_op_page_cache+0x8c0/0x8c0
[ 859.928562][ T28] ? filemap_add_folio+0x1d0/0x1d0
[ 859.933696][ T28] ? folio_unlock+0xc0/0xc0
[ 859.938229][ T28] ? enable_ptr_key_workfn+0x20/0x20
[ 859.943601][ T28] do_read_cache_folio+0x2c0/0x510
[ 859.948777][ T28] ? blkdev_writepages+0x20/0x20
[ 859.953790][ T28] read_part_sector+0xf6/0x440
[ 859.958596][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.963909][ T28] adfspart_check_ICS+0x9a/0x890
[ 859.968880][ T28] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240
[ 859.975657][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.980977][ T28] ? snprintf+0xbb/0xf0
[ 859.985165][ T28] ? vsprintf+0x30/0x30
[ 859.989371][ T28] ? adfspart_check_ADFS+0x560/0x560
[ 859.994684][ T28] bdev_disk_changed+0x65f/0xfc0
[ 859.999652][ T28] ? iput.part.0+0x73/0x810
[ 860.004170][ T28] blkdev_get_whole+0x18a/0x2d0
[ 860.009082][ T28] blkdev_get_by_dev.part.0+0x5ec/0xb90
[ 860.014655][ T28] ? devcgroup_check_permission+0x1a6/0x430
[ 860.020655][ T28] blkdev_get_by_dev+0x6b/0x80
[ 860.025432][ T28] blkdev_open+0x13c/0x2c0
[ 860.030182][ T28] do_dentry_open+0x4a4/0x13a0
[ 860.034983][ T28] ? blkdev_close+0x80/0x80
[ 860.039569][ T28] path_openat+0x1c92/0x28f0
[ 860.044177][ T28] ? path_lookupat+0x840/0x840
[ 860.048981][ T28] do_filp_open+0x1b6/0x400
[ 860.053515][ T28] ? may_open_dev+0xf0/0xf0
[ 860.058066][ T28] ? find_held_lock+0x2d/0x110
[ 860.062867][ T28] ? do_raw_spin_lock+0x120/0x2a0
[ 860.067925][ T28] ? rwlock_bug.part.0+0x90/0x90
[ 860.072875][ T28] ? _find_next_bit+0x1e3/0x260
[ 860.077792][ T28] ? _raw_spin_unlock+0x24/0x40
[ 860.082652][ T28] ? alloc_fd+0x2f0/0x6f0
[ 860.087018][ T28] do_sys_openat2+0x16d/0x4c0
[ 860.091711][ T28] ? build_open_flags+0x6f0/0x6f0
[ 860.096785][ T28] ? up_write+0x470/0x470
[ 860.101126][ T28] __x64_sys_openat+0x13f/0x1f0
[ 860.105968][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 860.110943][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.117090][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.122979][ T28] do_syscall_64+0x35/0xb0
[ 860.127428][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.133352][ T28] RIP: 0033:0x7f3271b86697
[ 860.137837][ T28] RSP: 002b:00007ffe2bfe5ab0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.146302][ T28] RAX: ffffffffffffffda RBX: 00005567eaac41c0 RCX: 00007f3271b86697
[ 860.154265][ T28] RDX: 00000000000a0800 RSI: 00005567eaab86b0 RDI: 00000000ffffff9c
[ 860.162300][ T28] RBP: 00005567eaab86b0 R08: 0000000000000001 R09: 00007ffe2bfe8080
[ 860.170312][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 860.178466][ T28] R13: 00005567eaac81b0 R14: 00007ffe2bfe5b5c R15: 00005567eaa8f2c0
[ 860.186531][ T28]
[ 860.190391][ T28]
[ 860.190391][ T28] Showing all locks held in the system:
[ 860.198162][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.203433][ T28] #0: ffffffff8bf85db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.213910][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.219230][ T28] #0: ffffffff8bf85ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.230230][ T28] 1 lock held by khungtaskd/28:
[ 860.235103][ T28] #0: ffffffff8bf86900 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 860.245048][ T28] 2 locks held by getty/3285:
[ 860.249779][ T28] #0: ffff8880281fb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 860.259725][ T28] #1: ffffc90001c482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[ 860.269910][ T28] 1 lock held by syz-executor387/3652:
[ 860.275382][ T28] #0: ffff888146e9d998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 860.284750][ T28] 1 lock held by udevd/3653:
[ 860.289360][ T28] #0: ffff88801e1274c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.299941][ T28]
[ 860.302291][ T28] =============================================
[ 860.302291][ T28]
[ 860.310779][ T28] NMI backtrace for cpu 0
[ 860.315105][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller #0
[ 860.323156][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.333206][ T28] Call Trace:
[ 860.336473][ T28]
[ 860.339391][ T28] dump_stack_lvl+0xcd/0x134
[ 860.344107][ T28] nmi_cpu_backtrace.cold+0x46/0x14f
[ 860.349388][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.354577][ T28] nmi_trigger_cpumask_backtrace+0x206/0x250
[ 860.360552][ T28] watchdog+0xc18/0xf50
[ 860.364700][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.370692][ T28] kthread+0x2e4/0x3a0
[ 860.374750][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.380370][ T28] ret_from_fork+0x1f/0x30
[ 860.384780][ T28]
[ 860.387907][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 860.393141][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x6f/0xb0
[ 860.394128][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.409108][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller #0
[ 860.417176][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.427230][ T28] Call Trace:
[ 860.430506][ T28]
[ 860.433439][ T28] dump_stack_lvl+0xcd/0x134
[ 860.438031][ T28] panic+0x2c8/0x627
[ 860.441956][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 860.447941][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.453146][ T28] ? preempt_schedule_thunk+0x16/0x18
[ 860.458523][ T28] ? watchdog.cold+0x130/0x158
[ 860.463308][ T28] watchdog.cold+0x141/0x158
[ 860.467934][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.473936][ T28] kthread+0x2e4/0x3a0
[ 860.478013][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.483646][ T28] ret_from_fork+0x1f/0x30
[ 860.488067][ T28]
[ 860.491342][ T28] Kernel Offset: disabled
[ 860.495667][ T28] Rebooting in 86400 seconds..