Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   27.993331] kasan: CONFIG_KASAN_INLINE enabled
[   27.998064] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   28.005413] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.011619] Modules linked in:
[   28.014788] CPU: 1 PID: 7953 Comm: syz-executor365 Not tainted 4.14.294-syzkaller #0
[   28.022645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   28.031980] task: ffff88809c954240 task.stack: ffff8880b3688000
[   28.038020] RIP: 0010:vhost_chr_write_iter+0x873/0x1100
[   28.043370] RSP: 0018:ffff8880b368fc00 EFLAGS: 00010246
[   28.048722] RAX: dffffc0000000000 RBX: ffff88808c620140 RCX: 0000000000000000
[   28.055976] RDX: 0000000000000002 RSI: ffffffff8ba5c350 RDI: ffff88808c620200
[   28.063235] RBP: ffffed10118c4039 R08: 0000000000000000 R09: 0000000000000000
[   28.070481] R10: 0000000000000002 R11: ffff88809c954240 R12: 0000000000000002
[   28.077724] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff110166d1f87
[   28.084981] FS:  000055555705f300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   28.093194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.099050] CR2: 00000000200001ce CR3: 000000009fc27000 CR4: 00000000003406e0
[   28.106296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.113538] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.120789] Call Trace:
[   28.123358]  ? log_write_hva+0x310/0x310
[   28.127392]  ? debug_check_no_obj_freed+0x2c0/0x680
[   28.132471]  ? lock_downgrade+0x740/0x740
[   28.136594]  ? iov_iter_init+0xa6/0x1c0
[   28.140545]  __vfs_write+0x44c/0x630
[   28.144232]  ? kernel_read+0x110/0x110
[   28.148115]  ? rw_verify_area+0xe1/0x2a0
[   28.152150]  vfs_write+0x17f/0x4d0
[   28.155667]  SyS_write+0xf2/0x210
[   28.159095]  ? SyS_read+0x210/0x210
[   28.162707]  ? __do_page_fault+0x159/0xad0
[   28.166916]  ? do_syscall_64+0x4c/0x640
[   28.170864]  ? SyS_read+0x210/0x210
[   28.174477]  do_syscall_64+0x1d5/0x640
[   28.178347]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   28.183511] RIP: 0033:0x7fa3ae0a7029
[   28.187197] RSP: 002b:00007ffd25a96ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   28.194878] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa3ae0a7029
[   28.202123] RDX: 0000000000000048 RSI: 0000000020000380 RDI: 0000000000000003
[   28.209365] RBP: 00007fa3ae06b010 R08: 0000000000000000 R09: 0000000000000000
[   28.216610] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa3ae06b0a0
[   28.223945] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   28.231192] 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 
[   28.250254] RIP: vhost_chr_write_iter+0x873/0x1100 RSP: ffff8880b368fc00
[   28.258064] ---[ end trace 072f1252b960f38a ]---
[   28.262909] Kernel panic - not syncing: Fatal exception
[   28.268498] Kernel Offset: disabled
[   28.272116] Rebooting in 86400 seconds..