[  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 '10.128.10.7' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   28.268660] kasan: CONFIG_KASAN_INLINE enabled
[   28.273347] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   28.280690] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.286891] Modules linked in:
[   28.290064] CPU: 1 PID: 7968 Comm: syz-executor937 Not tainted 4.14.302-syzkaller #0
[   28.297917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   28.307770] task: ffff8880b497a540 task.stack: ffff888096670000
[   28.313809] RIP: 0010:vhost_chr_write_iter+0x873/0x1100
[   28.319144] RSP: 0018:ffff888096677c00 EFLAGS: 00010246
[   28.324482] RAX: dffffc0000000000 RBX: ffff88808d260140 RCX: 0000000000000000
[   28.331727] RDX: 0000000000000002 RSI: ffffffff8ba5e0b0 RDI: ffff88808d260200
[   28.338969] RBP: ffffed1011a4c039 R08: 0000000000000000 R09: 0000000000000000
[   28.346212] R10: 0000000000000002 R11: ffff8880b497a540 R12: 0000000000000002
[   28.353451] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff11012ccef87
[   28.360692] FS:  0000555556336300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   28.368894] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.374751] CR2: 000000002000000e CR3: 000000009b5f7000 CR4: 00000000003406e0
[   28.381998] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.389258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.396501] Call Trace:
[   28.399067]  ? log_write_hva+0x310/0x310
[   28.403104]  ? debug_check_no_obj_freed+0x2c0/0x680
[   28.408093]  ? lock_downgrade+0x740/0x740
[   28.412217]  ? iov_iter_init+0xa6/0x1c0
[   28.416162]  __vfs_write+0x44c/0x630
[   28.419852]  ? kernel_read+0x110/0x110
[   28.423713]  ? rw_verify_area+0xe1/0x2a0
[   28.427746]  vfs_write+0x17f/0x4d0
[   28.431271]  SyS_write+0xf2/0x210
[   28.434702]  ? SyS_read+0x210/0x210
[   28.438307]  ? __do_page_fault+0x159/0xad0
[   28.442516]  ? do_syscall_64+0x4c/0x640
[   28.446463]  ? SyS_read+0x210/0x210
[   28.450064]  do_syscall_64+0x1d5/0x640
[   28.453927]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[   28.459088] RIP: 0033:0x7fdc4bbd1029
[   28.462769] RSP: 002b:00007ffe7c092d28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   28.470444] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdc4bbd1029
[   28.477698] RDX: 0000000000000048 RSI: 00000000200001c0 RDI: 0000000000000003
[   28.484942] RBP: 00007fdc4bb95010 R08: 0000000000000000 R09: 0000000000000000
[   28.492188] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdc4bb950a0
[   28.499433] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   28.507028] 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 
[   28.526089] RIP: vhost_chr_write_iter+0x873/0x1100 RSP: ffff888096677c00
[   28.535124] ---[ end trace 2d16608682c6b5f8 ]---
[   28.539887] Kernel panic - not syncing: Fatal exception
[   28.545452] Kernel Offset: disabled
[   28.549064] Rebooting in 86400 seconds..