DUID 00:04:17:4d:40:87:6e:bf:2d:0e:65:92:c1:2a:fb:91:5f:79
forked to background, child pid 3173
[   30.995705][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0
[   31.005863][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   81.460076][    T7] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.171' (ED25519) to the list of known hosts.
executing program
[  672.517033][ T3542] loop0: detected capacity change from 0 to 32768
[  672.528297][ T3542] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  672.536659][ T3542] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  672.550096][ T3542] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  672.559639][    T7] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  672.566464][    T7] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  672.606346][    T7] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 39ms
[  672.615960][    T7] gfs2: fsid=syz:syz.0: jid=0: Done
[  672.621671][ T3542] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  859.697815][   T27] INFO: task syz-executor896:3541 blocked for more than 143 seconds.
[  859.706166][   T27]       Not tainted 5.15.139-syzkaller #0
[  859.712229][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  859.721320][   T27] task:syz-executor896 state:D stack:24864 pid: 3541 ppid:  3539 flags:0x00004002
[  859.730762][   T27] Call Trace:
[  859.734063][   T27]  <TASK>
[  859.737114][   T27]  __schedule+0x12c4/0x45b0
[  859.742053][   T27]  ? _raw_spin_unlock_irqrestore+0x8b/0x130
[  859.748277][   T27]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[  859.754201][   T27]  ? __mod_timer+0xa8e/0xeb0
[  859.759056][   T27]  ? __sched_text_start+0x8/0x8
[  859.763928][   T27]  ? mod_timer_pending+0x20/0x20
[  859.769059][   T27]  ? lockdep_softirqs_off+0x420/0x420
[  859.774506][   T27]  schedule+0x11b/0x1f0
[  859.778840][   T27]  schedule_timeout+0x1b9/0x300
[  859.784081][   T27]  ? console_conditional_schedule+0x40/0x40
[  859.790152][   T27]  ? update_process_times+0x200/0x200
[  859.795875][   T27]  ? prepare_to_wait_event+0x3aa/0x3e0
[  859.801772][   T27]  gfs2_gl_hash_clear+0x1a1/0x310
[  859.807534][   T27]  ? thaw_glock+0x160/0x160
[  859.812134][   T27]  ? gfs2_jindex_free+0x495/0x4f0
[  859.817200][   T27]  ? init_wait_entry+0xd0/0xd0
[  859.822210][   T27]  ? gfs2_setbit+0x630/0x630
[  859.826843][   T27]  gfs2_put_super+0x752/0x7c0
[  859.831567][   T27]  ? gfs2_evict_inode+0x1320/0x1320
[  859.836805][   T27]  generic_shutdown_super+0x136/0x2c0
[  859.842336][   T27]  kill_block_super+0x7a/0xe0
[  859.847133][   T27]  deactivate_locked_super+0xa0/0x110
[  859.852877][   T27]  cleanup_mnt+0x44e/0x500
[  859.857359][   T27]  ? lockdep_hardirqs_on+0x94/0x130
[  859.862771][   T27]  task_work_run+0x129/0x1a0
[  859.867620][   T27]  exit_to_user_mode_loop+0x106/0x130
[  859.873005][   T27]  exit_to_user_mode_prepare+0xb1/0x140
[  859.878684][   T27]  syscall_exit_to_user_mode+0x5d/0x250
[  859.884346][   T27]  do_syscall_64+0x49/0xb0
[  859.888813][   T27]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[  859.894732][   T27] RIP: 0033:0x7f8e040fe447
[  859.899204][   T27] RSP: 002b:00007fff69a5a3a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[  859.907846][   T27] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8e040fe447
[  859.915835][   T27] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff69a5a460
[  859.923877][   T27] RBP: 00007fff69a5a460 R08: 0000000000000000 R09: 0000000000000000
[  859.931890][   T27] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff69a5b4d0
[  859.940113][   T27] R13: 00005555555d56c0 R14: 431bde82d7b634db R15: 00007fff69a5b4f0
[  859.948494][   T27]  </TASK>
[  859.952703][   T27] 
[  859.952703][   T27] Showing all locks held in the system:
[  859.960557][   T27] 1 lock held by khungtaskd/27:
[  859.965425][   T27]  #0: ffffffff8c91f060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  859.974864][   T27] 1 lock held by klogd/2951:
[  859.979510][   T27]  #0: ffff8880b9b39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140
[  859.989563][   T27] 2 locks held by getty/3260:
[  859.994249][   T27]  #0: ffff888024767098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  860.004188][   T27]  #1: ffffc90002bb32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[  860.014491][   T27] 1 lock held by syz-executor896/3541:
[  860.019988][   T27]  #0: ffff88801a1f20e0 (&type->s_umount_key#43){++++}-{3:3}, at: deactivate_super+0xa9/0xe0
[  860.030249][   T27] 
[  860.032604][   T27] =============================================
[  860.032604][   T27] 
[  860.041162][   T27] NMI backtrace for cpu 0
[  860.045499][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.139-syzkaller #0
[  860.053472][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
[  860.063536][   T27] Call Trace:
[  860.066808][   T27]  <TASK>
[  860.069740][   T27]  dump_stack_lvl+0x1e3/0x2cb
[  860.074430][   T27]  ? io_uring_drop_tctx_refs+0x19d/0x19d
[  860.080055][   T27]  ? panic+0x84d/0x84d
[  860.084123][   T27]  ? nmi_cpu_backtrace+0x23b/0x4a0
[  860.089297][   T27]  nmi_cpu_backtrace+0x46a/0x4a0
[  860.094231][   T27]  ? __wake_up_klogd+0xd5/0x100
[  860.099106][   T27]  ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[  860.105254][   T27]  ? _printk+0xd1/0x111
[  860.109402][   T27]  ? panic+0x84d/0x84d
[  860.113480][   T27]  ? __wake_up_klogd+0xcc/0x100
[  860.118331][   T27]  ? panic+0x84d/0x84d
[  860.122402][   T27]  ? __rcu_read_unlock+0x92/0x100
[  860.128001][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  860.134158][   T27]  nmi_trigger_cpumask_backtrace+0x181/0x2a0
[  860.140238][   T27]  watchdog+0xe72/0xeb0
[  860.144632][   T27]  kthread+0x3f6/0x4f0
[  860.148720][   T27]  ? hungtask_pm_notify+0x50/0x50
[  860.153771][   T27]  ? kthread_blkcg+0xd0/0xd0
[  860.158556][   T27]  ret_from_fork+0x1f/0x30
[  860.163609][   T27]  </TASK>
[  860.166753][   T27] Sending NMI from CPU 0 to CPUs 1:
[  860.172116][    C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340
[  860.173098][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  860.187977][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.139-syzkaller #0
[  860.196047][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
[  860.206219][   T27] Call Trace:
[  860.209506][   T27]  <TASK>
[  860.212446][   T27]  dump_stack_lvl+0x1e3/0x2cb
[  860.217133][   T27]  ? io_uring_drop_tctx_refs+0x19d/0x19d
[  860.222817][   T27]  ? panic+0x84d/0x84d
[  860.226910][   T27]  panic+0x318/0x84d
[  860.230821][   T27]  ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[  860.236996][   T27]  ? fb_is_primary_device+0xcc/0xcc
[  860.242207][   T27]  ? panic+0x84d/0x84d
[  860.246564][   T27]  ? irq_work_queue+0xcd/0x150
[  860.251406][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  860.257513][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  860.263595][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  860.269845][   T27]  ? nmi_trigger_cpumask_backtrace+0x22a/0x2a0
[  860.276052][   T27]  watchdog+0xeb0/0xeb0
[  860.280497][   T27]  kthread+0x3f6/0x4f0
[  860.284567][   T27]  ? hungtask_pm_notify+0x50/0x50
[  860.289641][   T27]  ? kthread_blkcg+0xd0/0xd0
[  860.294246][   T27]  ret_from_fork+0x1f/0x30
[  860.299267][   T27]  </TASK>
[  860.302541][   T27] Kernel Offset: disabled
[  860.307156][   T27] Rebooting in 86400 seconds..