[ 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): [] kvm_wait+0x14b/0x240 [ 103.289447] irq event stamp: 196799 [ 103.297769] hardirqs last disabled at (109387): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 103.301374] hardirqs last enabled at (196798): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 103.310881] softirqs last enabled at (98718): [] conn_put+0x2c5/0x3a0 [ 103.321524] hardirqs last disabled at (196799): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 103.329723] softirqs last disabled at (98724): [] 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): [] 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): [] 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 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] [ 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] [ 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 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..