Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  720.985824][ T1650] INFO: task syz-executor015:8439 blocked for more than 143 seconds.
[  720.994184][ T1650]       Tainted: G        W         5.13.0-syzkaller #0
[  721.001759][ T1650] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  721.010488][ T1650] task:syz-executor015 state:D stack:28184 pid: 8439 ppid:  8438 flags:0x00000004
[  721.019765][ T1650] Call Trace:
[  721.023042][ T1650]  __schedule+0x934/0x2710
[  721.027496][ T1650]  ? io_schedule_timeout+0x140/0x140
[  721.032789][ T1650]  ? _raw_spin_lock_irqsave+0x41/0x50
[  721.038225][ T1650]  schedule+0xd3/0x270
[  721.042302][ T1650]  io_uring_cancel_generic+0x54d/0x890
[  721.047797][ T1650]  ? __io_uring_free+0x170/0x170
[  721.052730][ T1650]  ? finish_wait+0x270/0x270
[  721.057400][ T1650]  ? do_raw_spin_unlock+0x171/0x230
[  721.062593][ T1650]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[  721.068857][ T1650]  ? __validate_process_creds+0x20c/0x370
[  721.074580][ T1650]  do_exit+0x28b/0x2a50
[  721.078797][ T1650]  ? lock_release+0x522/0x720
[  721.083482][ T1650]  ? __context_tracking_exit+0xb8/0xe0
[  721.089213][ T1650]  ? do_group_exit+0x29a/0x310
[  721.093979][ T1650]  ? lock_downgrade+0x6e0/0x6e0
[  721.098864][ T1650]  ? mm_update_next_owner+0x7a0/0x7a0
[  721.104502][ T1650]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[  721.110916][ T1650]  ? signal_wake_up_state+0x36/0x60
[  721.116284][ T1650]  do_group_exit+0x125/0x310
[  721.120880][ T1650]  __x64_sys_exit_group+0x3a/0x50
[  721.125931][ T1650]  do_syscall_64+0x35/0xb0
[  721.130350][ T1650]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  721.136293][ T1650] RIP: 0033:0x43eac9
[  721.140268][ T1650] RSP: 002b:00007ffc2d1b6378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[  721.148719][ T1650] RAX: ffffffffffffffda RBX: 00000000004b02f0 RCX: 000000000043eac9
[  721.156739][ T1650] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
[  721.166064][ T1650] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 00000000f0ffffff
[  721.174129][ T1650] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b02f0
[  721.182333][ T1650] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[  721.190358][ T1650] INFO: lockdep is turned off.
[  721.195103][ T1650] NMI backtrace for cpu 0
[  721.199644][ T1650] CPU: 0 PID: 1650 Comm: khungtaskd Tainted: G        W         5.13.0-syzkaller #0
[  721.209012][ T1650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.219050][ T1650] Call Trace:
[  721.222308][ T1650]  dump_stack_lvl+0xcd/0x134
[  721.226890][ T1650]  nmi_cpu_backtrace.cold+0x44/0xd7
[  721.232249][ T1650]  ? lapic_can_unplug_cpu+0x80/0x80
[  721.237649][ T1650]  nmi_trigger_cpumask_backtrace+0x1b3/0x230
[  721.243617][ T1650]  watchdog+0xd4b/0xfb0
[  721.248038][ T1650]  ? reset_hung_task_detector+0x30/0x30
[  721.253946][ T1650]  kthread+0x3e5/0x4d0
[  721.258534][ T1650]  ? set_kthread_struct+0x130/0x130
[  721.263720][ T1650]  ret_from_fork+0x1f/0x30
[  721.268228][ T1650] Sending NMI from CPU 0 to CPUs 1:
[  721.273755][    C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250
[  721.282747][ T1650] Kernel panic - not syncing: hung_task: blocked tasks
[  721.289599][ T1650] CPU: 0 PID: 1650 Comm: khungtaskd Tainted: G        W         5.13.0-syzkaller #0
[  721.299123][ T1650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.309514][ T1650] Call Trace:
[  721.312776][ T1650]  dump_stack_lvl+0xcd/0x134
[  721.317631][ T1650]  panic+0x306/0x73d
[  721.321511][ T1650]  ? __warn_printk+0xf3/0xf3
[  721.326087][ T1650]  ? lapic_can_unplug_cpu+0x80/0x80
[  721.331529][ T1650]  ? preempt_schedule_thunk+0x16/0x18
[  721.336884][ T1650]  ? nmi_trigger_cpumask_backtrace+0x196/0x230
[  721.343021][ T1650]  ? watchdog.cold+0x5/0x158
[  721.348291][ T1650]  watchdog.cold+0x16/0x158
[  721.352780][ T1650]  ? reset_hung_task_detector+0x30/0x30
[  721.358490][ T1650]  kthread+0x3e5/0x4d0
[  721.362542][ T1650]  ? set_kthread_struct+0x130/0x130
[  721.368608][ T1650]  ret_from_fork+0x1f/0x30
[  721.380166][ T1650] Kernel Offset: disabled
[  721.384481][ T1650] Rebooting in 86400 seconds..