[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts.
syzkaller login: [   76.439887] IPVS: ftp: loaded support on port[0] = 21
[   76.593819] IPVS: ftp: loaded support on port[0] = 21
[  103.264456] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/u4:4:2944]
[  103.272125] Modules linked in:
[  103.274421] watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [kworker/u4:0:7]
[  103.275314] irq event stamp: 109387
[  103.282657] Modules linked in:
[  103.286284] hardirqs last  enabled at (109386): [<ffffffff8129070b>] kvm_wait+0x14b/0x240
[  103.289447] irq event stamp: 196799
[  103.297769] hardirqs last disabled at (109387): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
[  103.301374] hardirqs last  enabled at (196798): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
[  103.310881] softirqs last  enabled at (98718): [<ffffffff87bb0285>] conn_put+0x2c5/0x3a0
[  103.321524] hardirqs last disabled at (196799): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
[  103.329723] softirqs last disabled at (98724): [<ffffffff87bb003a>] conn_put+0x7a/0x3a0
[  103.329738] CPU: 0 PID: 2944 Comm: kworker/u4:4 Not tainted 4.19.211-syzkaller #0
[  103.339260] softirqs last  enabled at (191468): [<ffffffff87b996b1>] tipc_shutdown+0x121/0x310
[  103.347451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[  103.355054] softirqs last disabled at (191470): [<ffffffff87bb4683>] tipc_topsrv_exit_net+0x283/0x5c0
[  103.363778] Workqueue: tipc_rcv tipc_conn_recv_work
[  103.373139] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.211-syzkaller #0
[  103.382490] RIP: 0010:native_safe_halt+0xe/0x10
[  103.387489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[  103.394832] Code: 48 89 df e8 f4 20 7f f9 e9 2e ff ff ff 48 89 df e8 e7 20 7f f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 14 43 4e 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 04 43 4e 00 f4 c3 90 90 41 56 41 55
[  103.399479] Workqueue: netns cleanup_net
[  103.408809] RSP: 0018:ffff8880abedfbb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  103.427700] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50
[  103.431748] RAX: 1ffffffff13e3054 RBX: ffff888098506610 RCX: 1ffff110157da52f
[  103.439434] Code: e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00
[  103.444768] RDX: dffffc0000000000 RSI: ffff8880abed2958 RDI: ffff8880abed2904
[  103.444778] RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
[  103.452032] RSP: 0018:ffff8880b5a47bc0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
[  103.471173] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286
[  103.471184] R13: ffffed10130a0cc2 R14: 0000000000000001 R15: ffff8880ba02be00
[  103.478440] RAX: 0000000000000000 RBX: 000000002c477fc7 RCX: ffffffff87bb46ad
[  103.485691] FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[  103.493373] RDX: 1ffff110130a0cc1 RSI: ffffffff87eef67e RDI: ffff8880985065c0
[  103.500626] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  103.507871] RBP: ffff8880985065c0 R08: 0000000000000001 R09: 0000000000000000
[  103.507881] R10: 0000000000000005 R11: 0000000000000000 R12: 000000002c477fc7
[  103.515130] CR2: 00007ffea72972d8 CR3: 00000000a886a000 CR4: 00000000003406f0
[  103.523335] R13: ffffed10130a0cc9 R14: ffff88808dfdd980 R15: 0000000000000046
[  103.530587] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  103.536447] FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
[  103.543706] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  103.543714] Call Trace:
[  103.550965] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  103.558233]  kvm_wait+0x179/0x240
[  103.565481] CR2: 00007f05b239b01d CR3: 00000000a98d0000 CR4: 00000000003406e0
[  103.572746]  __pv_queued_spin_lock_slowpath+0x86a/0xae0
[  103.580969] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  103.588226]  ? pv_hash+0xe0/0xe0
[  103.590787] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  103.596654]  ? lock_acquire+0x170/0x3c0
[  103.600074] Call Trace:
[  103.607331]  ? conn_put+0x7a/0x3a0
[  103.612684]  radix_tree_lookup+0xe/0x20
[  103.619938]  do_raw_spin_lock+0x189/0x220
[  103.623280]  tipc_topsrv_exit_net+0x25e/0x5c0
[  103.630528]  conn_put+0x7a/0x3a0
[  103.634480]  ? tipc_topsrv_init_net+0xb90/0xb90
[  103.637042]  ? tipc_conn_recv_work+0x65/0xe0
[  103.640559]  ops_exit_list+0xa5/0x150
[  103.644513]  process_one_work+0x864/0x1570
[  103.648649]  cleanup_net+0x3b4/0x8b0
[  103.653125]  ? pwq_dec_nr_in_flight+0x2d0/0x2d0
[  103.656464]  ? net_drop_ns+0x90/0x90
[  103.661117]  worker_thread+0x64c/0x1130
[  103.665504]  ? check_preemption_disabled+0x10/0x280
[  103.669285]  ? __kthread_parkme+0x133/0x1e0
[  103.673508]  process_one_work+0x864/0x1570
[  103.677369]  ? process_one_work+0x1570/0x1570
[  103.682021]  ? pwq_dec_nr_in_flight+0x2d0/0x2d0
[  103.685707]  kthread+0x33f/0x460
[  103.689666]  worker_thread+0x64c/0x1130
[  103.694666]  ? kthread_park+0x180/0x180
[  103.698973]  ? process_one_work+0x1570/0x1570
[  103.703183]  ret_from_fork+0x24/0x30
[  103.707650]  kthread+0x33f/0x460
[  103.712302] Kernel panic - not syncing: softlockup: hung tasks
[  103.715644]  ? kthread_park+0x180/0x180
[  103.719618] CPU: 0 PID: 2944 Comm: kworker/u4:4 Tainted: G             L    4.19.211-syzkaller #0
[  103.723571]  ret_from_fork+0x24/0x30
[  103.728055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[  103.767025] Workqueue: tipc_rcv tipc_conn_recv_work
[  103.772031] Call Trace:
[  103.774857]  <IRQ>
[  103.777006]  dump_stack+0x1fc/0x2ef
[  103.780619]  panic+0x26a/0x50e
[  103.783799]  ? __warn_printk+0xf3/0xf3
[  103.787688]  ? watchdog_timer_fn.cold+0x5/0x25
[  103.792270]  ? watchdog_timer_fn+0x53e/0x580
[  103.796670]  watchdog_timer_fn.cold+0x16/0x25
[  103.801158]  __hrtimer_run_queues+0x3f6/0xe60
[  103.805641]  ? softlockup_fn+0xb0/0xb0
[  103.809519]  ? hrtimer_fixup_free+0xa0/0xa0
[  103.813836]  ? kvm_clock_get_cycles+0x14/0x30
[  103.818311]  ? ktime_get_update_offsets_now+0x2ec/0x460
[  103.823665]  hrtimer_interrupt+0x326/0x9e0
[  103.827902]  smp_apic_timer_interrupt+0x10c/0x550
[  103.832738]  apic_timer_interrupt+0xf/0x20
[  103.836955]  </IRQ>
[  103.839213] RIP: 0010:native_safe_halt+0xe/0x10
[  103.843868] Code: 48 89 df e8 f4 20 7f f9 e9 2e ff ff ff 48 89 df e8 e7 20 7f f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 14 43 4e 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 04 43 4e 00 f4 c3 90 90 41 56 41 55
[  103.862757] RSP: 0018:ffff8880abedfbb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  103.870447] RAX: 1ffffffff13e3054 RBX: ffff888098506610 RCX: 1ffff110157da52f
[  103.877700] RDX: dffffc0000000000 RSI: ffff8880abed2958 RDI: ffff8880abed2904
[  103.884970] RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
[  103.892223] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286
[  103.899496] R13: ffffed10130a0cc2 R14: 0000000000000001 R15: ffff8880ba02be00
[  103.906771]  kvm_wait+0x179/0x240
[  103.910222]  __pv_queued_spin_lock_slowpath+0x86a/0xae0
[  103.915570]  ? pv_hash+0xe0/0xe0
[  103.918924]  ? lock_acquire+0x170/0x3c0
[  103.922881]  ? conn_put+0x7a/0x3a0
[  103.926416]  do_raw_spin_lock+0x189/0x220
[  103.930551]  conn_put+0x7a/0x3a0
[  103.933903]  ? tipc_conn_recv_work+0x65/0xe0
[  103.938299]  process_one_work+0x864/0x1570
[  103.942537]  ? pwq_dec_nr_in_flight+0x2d0/0x2d0
[  103.947199]  worker_thread+0x64c/0x1130
[  103.951164]  ? __kthread_parkme+0x133/0x1e0
[  103.955468]  ? process_one_work+0x1570/0x1570
[  103.959947]  kthread+0x33f/0x460
[  103.963298]  ? kthread_park+0x180/0x180
[  103.967259]  ret_from_fork+0x24/0x30
[  105.060093] Shutting down cpus with NMI
[  105.064279] Kernel Offset: disabled
[  105.067938] Rebooting in 86400 seconds..