DUID 00:04:a1:84:1b:e0:48:24:35:f8:15:f9:55:b5:79:ea:e6:3e
forked to background, child pid 3143
[ 26.108259][ T3144] 8021q: adding VLAN 0 to HW filter on device bond0
[ 26.122291][ T3144] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.251359][ T6] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts.
executing program
[ 515.929212][ T107] block nbd0: Possible stuck request ffff88801cb00000: control (read@0,512B). Runtime 30 seconds
[ 716.249095][ T28] INFO: task syz-executor838:3602 blocked for more than 143 seconds.
[ 716.257265][ T28] Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
[ 716.264795][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.273577][ T28] task:syz-executor838 state:D stack:23680 pid: 3602 ppid: 3601 flags:0x00004004
[ 716.282961][ T28] Call Trace:
[ 716.286237][ T28]
[ 716.289353][ T28] __schedule+0x937/0x1090
[ 716.293883][ T28] ? __sched_text_start+0x8/0x8
[ 716.298721][ T28] schedule+0xeb/0x1b0
[ 716.303015][ T28] schedule_timeout+0xac/0x300
[ 716.307786][ T28] ? console_conditional_schedule+0x40/0x40
[ 716.313832][ T28] ? lockdep_hardirqs_on_prepare+0x412/0x780
[ 716.320007][ T28] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.325204][ T28] ? lockdep_hardirqs_on+0x95/0x140
[ 716.330561][ T28] do_wait_for_common+0x3ea/0x560
[ 716.335595][ T28] ? console_conditional_schedule+0x40/0x40
[ 716.341629][ T28] ? bit_wait_io_timeout+0x110/0x110
[ 716.346919][ T28] ? _raw_spin_lock_irq+0xdb/0x110
[ 716.352212][ T28] ? xfs_buf_get_uncached+0x1e6/0x2e0
[ 716.357633][ T28] wait_for_completion+0x46/0x60
[ 716.362737][ T28] ? xfs_buf_read_uncached+0x22c/0x3d0
[ 716.368198][ T28] __xfs_buf_submit+0x3fe/0x730
[ 716.373198][ T28] ? xfs_buf_read_uncached+0x22c/0x3d0
[ 716.378660][ T28] xfs_buf_read_uncached+0x22c/0x3d0
[ 716.384227][ T28] ? xfs_buf_readahead_map+0x110/0x110
[ 716.389845][ T28] ? pcpu_alloc+0x110a/0x1850
[ 716.394747][ T28] xfs_readsb+0x202/0x690
[ 716.399268][ T28] ? xfs_sb_validate_fsb_count+0x170/0x170
[ 716.405077][ T28] xfs_fs_fill_super+0x833/0x18b0
[ 716.410238][ T28] ? set_blocksize+0x1d5/0x360
[ 716.415147][ T28] get_tree_bdev+0x406/0x630
[ 716.419916][ T28] ? xfs_fs_reconfigure+0x910/0x910
[ 716.425117][ T28] vfs_get_tree+0x86/0x270
[ 716.429703][ T28] path_mount+0x1986/0x2c30
[ 716.434256][ T28] ? slab_free_freelist_hook+0x12e/0x1a0
[ 716.440070][ T28] ? mark_mounts_for_expiry+0x520/0x520
[ 716.445615][ T28] ? user_path_at_empty+0x149/0x1a0
[ 716.450965][ T28] ? kmem_cache_free+0xc6/0x2d0
[ 716.455854][ T28] ? user_path_at_empty+0x149/0x1a0
[ 716.461192][ T28] __se_sys_mount+0x308/0x3c0
[ 716.465950][ T28] ? print_irqtrace_events+0x220/0x220
[ 716.471544][ T28] ? __x64_sys_mount+0xc0/0xc0
[ 716.476329][ T28] ? __x64_sys_mount+0x1c/0xc0
[ 716.481252][ T28] do_syscall_64+0x2b/0x50
[ 716.485664][ T28] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 716.491838][ T28] RIP: 0033:0x7f3cd013a3d9
[ 716.496251][ T28] RSP: 002b:00007ffd0e2e7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 716.504994][ T28] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f3cd013a3d9
[ 716.513025][ T28] RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0
[ 716.521125][ T28] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd0e2e7d08
[ 716.529263][ T28] R10: 0000000000008002 R11: 0000000000000246 R12: 00007f3cd00f96f0
[ 716.537242][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 716.545416][ T28]
[ 716.548465][ T28]
[ 716.548465][ T28] Showing all locks held in the system:
[ 716.556468][ T28] 1 lock held by khungtaskd/28:
[ 716.561552][ T28] #0: ffffffff8cd1d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 716.571010][ T28] 1 lock held by klogd/2922:
[ 716.575590][ T28] #0: ffff8880b9b39bd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110
[ 716.585604][ T28] 2 locks held by getty/3243:
[ 716.590314][ T28] #0: ffff888148bb2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 716.600126][ T28] #1: ffffc90002e732e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c2/0x1c60
[ 716.610301][ T28] 1 lock held by syz-executor838/3602:
[ 716.615737][ T28] #0: ffff88801fa9c0e0 (&type->s_umount_key#43/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820
[ 716.625870][ T28]
[ 716.628186][ T28] =============================================
[ 716.628186][ T28]
[ 716.637000][ T28] NMI backtrace for cpu 0
[ 716.641330][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
[ 716.650848][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.660879][ T28] Call Trace:
[ 716.664137][ T28]
[ 716.667047][ T28] dump_stack_lvl+0x1dc/0x2d8
[ 716.671773][ T28] ? show_regs_print_info+0x12/0x12
[ 716.676949][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498
[ 716.682671][ T28] nmi_cpu_backtrace+0x45f/0x490
[ 716.687617][ T28] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 716.693748][ T28] ? wake_up_klogd+0xb2/0xf0
[ 716.698331][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498
[ 716.704037][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 716.710215][ T28] nmi_trigger_cpumask_backtrace+0x16a/0x280
[ 716.716179][ T28] watchdog+0xc82/0xcd0
[ 716.720357][ T28] kthread+0x2a3/0x2d0
[ 716.724401][ T28] ? hungtask_pm_notify+0x50/0x50
[ 716.729400][ T28] ? kthread_blkcg+0xd0/0xd0
[ 716.733969][ T28] ret_from_fork+0x1f/0x30
[ 716.738394][ T28]
[ 716.741534][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 716.746743][ C1] NMI backtrace for cpu 1
[ 716.746753][ C1] CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
[ 716.746768][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.746776][ C1] Workqueue: events_unbound toggle_allocation_gate
[ 716.746798][ C1] RIP: 0010:match_held_lock+0x2/0xb0
[ 716.746815][ C1] Code: c7 c7 20 42 8f 8a 48 c7 c6 60 42 8f 8a 31 c0 e8 44 a1 27 f7 0f 0b eb 8b 0f 0b eb 87 e8 c7 fa ff ff 0f 1f 80 00 00 00 00 55 53 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 10 00 72
[ 716.746826][ C1] RSP: 0018:ffffc900001075a0 EFLAGS: 00000087
[ 716.746837][ C1] RAX: 0000000000000006 RBX: 0000000000000005 RCX: 0000000080000002
[ 716.746846][ C1] RDX: 0000000000000000 RSI: ffffffff8cd1d000 RDI: ffff88813feac528
[ 716.746856][ C1] RBP: ffff88813feac528 R08: dffffc0000000000 R09: fffffbfff1c4276e
[ 716.746866][ C1] R10: fffffbfff1c4276e R11: 0000000000000000 R12: 0000000000000046
[ 716.746875][ C1] R13: ffff88813feaba00 R14: 00000000ffffffff R15: ffffffff8cd1d000
[ 716.746885][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 716.746897][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.746907][ C1] CR2: 00005573ae510600 CR3: 00000001400fa000 CR4: 00000000003506e0
[ 716.746919][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.746927][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.746936][ C1] Call Trace:
[ 716.746940][ C1]
[ 716.746945][ C1] lock_is_held_type+0xb1/0x190
[ 716.746961][ C1] rcu_read_lock_sched_held+0x89/0x130
[ 716.747022][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 716.747039][ C1] trace_tlb_flush+0x7b/0x190
[ 716.747072][ C1] switch_mm_irqs_off+0x5c7/0x910
[ 716.747088][ C1] ? __lock_acquire+0x2b00/0x2b00
[ 716.747101][ C1] ? __rwlock_init+0x140/0x140
[ 716.747115][ C1] ? switch_mm+0x190/0x190
[ 716.747128][ C1] ? kmem_cache_alloc+0xdf/0x310
[ 716.747145][ C1] ? lockdep_hardirqs_off+0x71/0x100
[ 716.747159][ C1] __text_poke+0x5bd/0x9f0
[ 716.747191][ C1] ? kmem_cache_alloc_lru+0xbf/0x300
[ 716.747208][ C1] ? text_poke+0x80/0x80
[ 716.747221][ C1] ? perf_event_text_poke+0x252/0x330
[ 716.747261][ C1] ? kmem_cache_alloc+0xde/0x310
[ 716.747276][ C1] ? perf_event_bpf_output+0x240/0x240
[ 716.747295][ C1] ? kmem_cache_alloc_lru+0xbf/0x300
[ 716.747310][ C1] text_poke_bp_batch+0x487/0x920
[ 716.747329][ C1] ? text_poke_loc_init+0x570/0x570
[ 716.747345][ C1] ? arch_jump_label_transform_queue+0x7c/0xd0
[ 716.747360][ C1] ? __jump_label_update+0x32c/0x350
[ 716.747394][ C1] text_poke_finish+0x16/0x30
[ 716.747408][ C1] arch_jump_label_transform_apply+0x13/0x20
[ 716.747422][ C1] static_key_enable_cpuslocked+0x12d/0x250
[ 716.747436][ C1] static_key_enable+0x16/0x20
[ 716.747448][ C1] toggle_allocation_gate+0xbf/0x460
[ 716.747464][ C1] ? show_object+0xa0/0xa0
[ 716.747479][ C1] ? rcu_read_lock_sched_held+0x89/0x130
[ 716.747493][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 716.747506][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 716.747524][ C1] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.747539][ C1] process_one_work+0x83c/0x11a0
[ 716.747576][ C1] ? worker_detach_from_pool+0x260/0x260
[ 716.747591][ C1] ? _raw_spin_lock_irqsave+0x120/0x120
[ 716.747606][ C1] ? kthread_data+0x4d/0xc0
[ 716.747619][ C1] ? wq_worker_running+0x95/0x190
[ 716.747632][ C1] worker_thread+0xa6c/0x1290
[ 716.747655][ C1] kthread+0x2a3/0x2d0
[ 716.747673][ C1] ? rcu_lock_release+0x20/0x20
[ 716.747686][ C1] ? kthread_blkcg+0xd0/0xd0
[ 716.747699][ C1] ret_from_fork+0x1f/0x30
[ 716.747720][ C1]
[ 716.747847][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.111838][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
[ 717.121452][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 717.131483][ T28] Call Trace:
[ 717.134740][ T28]
[ 717.137648][ T28] dump_stack_lvl+0x1dc/0x2d8
[ 717.142309][ T28] ? show_regs_print_info+0x12/0x12
[ 717.147481][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498
[ 717.153183][ T28] ? vscnprintf+0x59/0x80
[ 717.157490][ T28] panic+0x313/0x890
[ 717.161425][ T28] ? schedule_preempt_disabled+0x20/0x20
[ 717.167033][ T28] ? nmi_trigger_cpumask_backtrace+0x206/0x280
[ 717.173170][ T28] ? nmi_panic+0x90/0x90
[ 717.177392][ T28] ? preempt_schedule_thunk+0x16/0x18
[ 717.182740][ T28] ? nmi_trigger_cpumask_backtrace+0x206/0x280
[ 717.188866][ T28] ? nmi_trigger_cpumask_backtrace+0x266/0x280
[ 717.195002][ T28] watchdog+0xcc2/0xcd0
[ 717.199147][ T28] kthread+0x2a3/0x2d0
[ 717.203195][ T28] ? hungtask_pm_notify+0x50/0x50
[ 717.208195][ T28] ? kthread_blkcg+0xd0/0xd0
[ 717.212772][ T28] ret_from_fork+0x1f/0x30
[ 717.217180][ T28]
[ 717.220458][ T28] Kernel Offset: disabled
[ 717.224772][ T28] Rebooting in 86400 seconds..