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

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   28.814217] kasan: CONFIG_KASAN_INLINE enabled
[   28.819024] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   28.826648] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.832880] Modules linked in:
[   28.836062] CPU: 1 PID: 7974 Comm: syz-executor238 Not tainted 4.14.295-syzkaller #0
[   28.843921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[   28.853258] task: ffff8880ac1344c0 task.stack: ffff8880965b8000
[   28.859311] RIP: 0010:vhost_chr_write_iter+0x873/0x1100
[   28.864657] RSP: 0018:ffff8880965bfc00 EFLAGS: 00010246
[   28.870006] RAX: dffffc0000000000 RBX: ffff888091080140 RCX: 0000000000000000
[   28.877259] RDX: 0000000000000002 RSI: ffffffff8ba5c5f0 RDI: ffff888091080200
[   28.884519] RBP: ffffed1012210039 R08: 0000000000000000 R09: 0000000000000000
[   28.891768] R10: 0000000000000002 R11: ffff8880ac1344c0 R12: 0000000000000002
[   28.899016] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff11012cb7f87
[   28.906264] FS:  0000555556632300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   28.914470] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.920326] CR2: 000000002000004e CR3: 00000000aff44000 CR4: 00000000003406e0
[   28.927578] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.934826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.942072] Call Trace:
[   28.944647]  ? log_write_hva+0x310/0x310
[   28.948687]  ? debug_check_no_obj_freed+0x2c0/0x680
[   28.953678]  ? lock_downgrade+0x740/0x740
[   28.957802]  ? iov_iter_init+0xa6/0x1c0
[   28.961750]  __vfs_write+0x44c/0x630
[   28.965440]  ? kernel_read+0x110/0x110
[   28.969304]  ? rw_verify_area+0xe1/0x2a0
[   28.973342]  vfs_write+0x17f/0x4d0
[   28.976913]  SyS_write+0xf2/0x210
[   28.980342]  ? SyS_read+0x210/0x210
[   28.983943]  ? __do_page_fault+0x159/0xad0
[   28.988154]  ? do_syscall_64+0x4c/0x640
[   28.992107]  ? SyS_read+0x210/0x210
[   28.995711]  do_syscall_64+0x1d5/0x640
[   28.999577]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   29.004740] RIP: 0033:0x7fec823f6029
[   29.008424] RSP: 002b:00007ffc1957f548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   29.016104] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec823f6029
[   29.023347] RDX: 0000000000000048 RSI: 0000000020000080 RDI: 0000000000000003
[   29.030589] RBP: 00007fec823ba010 R08: 0000000000000000 R09: 0000000000000000
[   29.037833] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec823ba0a0
[   29.045077] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   29.052324] Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 c6 06 00 00 4c 8b ab c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e9 48 c1 e9 03 <80> 3c 01 00 0f 85 8f 06 00 00 49 8b 6d 00 48 85 ed 0f 84 e4 03 
[   29.071515] RIP: vhost_chr_write_iter+0x873/0x1100 RSP: ffff8880965bfc00
[   29.079029] ---[ end trace 6b1e4264ef590f2d ]---
[   29.083811] Kernel panic - not syncing: Fatal exception
[   29.089327] Kernel Offset: disabled
[   29.092940] Rebooting in 86400 seconds..