Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts.
syzkaller login: [  657.397407][ T1153] INFO: task syz-executor825:23001 blocked for more than 143 seconds.
[  657.405729][ T1153]       Not tainted 5.8.0-syzkaller #0
[  657.412955][ T1153] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  657.421710][ T1153] syz-executor825 D28480 23001   6820 0x80004000
[  657.428350][ T1153] Call Trace:
[  657.431752][ T1153]  __schedule+0x979/0xce0
[  657.436078][ T1153]  ? schedule+0x188/0x220
[  657.440516][ T1153]  ? io_uring_flush+0x8fd/0xb50
[  657.445429][ T1153]  ? init_wait_entry+0xd0/0xd0
[  657.450870][ T1153]  ? io_uring_mmap+0x330/0x330
[  657.456068][ T1153]  ? filp_close+0xad/0x150
[  657.460659][ T1153]  ? put_files_struct+0x1d1/0x360
[  657.465777][ T1153]  ? do_exit+0x5a5/0x1f20
[  657.470191][ T1153]  ? do_group_exit+0x161/0x2d0
[  657.474980][ T1153]  ? syscall_enter_from_user_mode+0x24/0x190
[  657.481019][ T1153]  ? __do_sys_exit_group+0x13/0x20
[  657.486127][ T1153]  ? __se_sys_exit_group+0x10/0x10
[  657.491320][ T1153]  ? __x64_sys_exit_group+0x37/0x40
[  657.496507][ T1153]  ? do_syscall_64+0x31/0x70
[  657.501131][ T1153]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  657.507288][ T1153] 
[  657.507288][ T1153] Showing all locks held in the system:
[  657.515127][ T1153] 1 lock held by khungtaskd/1153:
[  657.520179][ T1153]  #0: ffffffff894fe1d0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  657.529643][ T1153] 1 lock held by in:imklog/6468:
[  657.534552][ T1153]  #0: ffff8880953db670 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x253/0x2f0
[  657.543790][ T1153] 
[  657.546108][ T1153] =============================================
[  657.546108][ T1153] 
[  657.554619][ T1153] NMI backtrace for cpu 0
[  657.558994][ T1153] CPU: 0 PID: 1153 Comm: khungtaskd Not tainted 5.8.0-syzkaller #0
[  657.566863][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  657.576936][ T1153] Call Trace:
[  657.580332][ T1153]  dump_stack+0x1f0/0x31e
[  657.584643][ T1153]  nmi_cpu_backtrace+0x9f/0x180
[  657.589517][ T1153]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  657.595556][ T1153]  nmi_trigger_cpumask_backtrace+0x16a/0x280
[  657.601574][ T1153]  watchdog+0xd65/0xdb0
[  657.605756][ T1153]  kthread+0x37e/0x3a0
[  657.609800][ T1153]  ? hungtask_pm_notify+0x50/0x50
[  657.614794][ T1153]  ? kthread_blkcg+0xd0/0xd0
[  657.619408][ T1153]  ret_from_fork+0x1f/0x30
[  657.623903][ T1153] Sending NMI from CPU 0 to CPUs 1:
[  657.629273][    C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10
[  657.630127][ T1153] Kernel panic - not syncing: hung_task: blocked tasks
[  657.644324][ T1153] CPU: 0 PID: 1153 Comm: khungtaskd Not tainted 5.8.0-syzkaller #0
[  657.652181][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  657.662204][ T1153] Call Trace:
[  657.665470][ T1153]  dump_stack+0x1f0/0x31e
[  657.669823][ T1153]  panic+0x264/0x7a0
[  657.673689][ T1153]  ? nmi_trigger_cpumask_backtrace+0x206/0x280
[  657.679881][ T1153]  watchdog+0xda5/0xdb0
[  657.684027][ T1153]  kthread+0x37e/0x3a0
[  657.688076][ T1153]  ? hungtask_pm_notify+0x50/0x50
[  657.693090][ T1153]  ? kthread_blkcg+0xd0/0xd0
[  657.697660][ T1153]  ret_from_fork+0x1f/0x30
[  657.703513][ T1153] Kernel Offset: disabled
[  657.707833][ T1153] Rebooting in 86400 seconds..