Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.304724] kasan: CONFIG_KASAN_INLINE enabled
[   34.309584] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   34.317505] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   34.323827] Modules linked in:
[   34.327044] CPU: 0 PID: 8010 Comm: syz-executor013 Not tainted 4.14.204-syzkaller #0
[   34.334940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.344290] task: ffff8880a5562140 task.stack: ffff888095af8000
[   34.350348] RIP: 0010:vhost_chr_write_iter+0x863/0x10f0
[   34.355705] RSP: 0018:ffff888095affc00 EFLAGS: 00010246
[   34.361075] RAX: dffffc0000000000 RBX: ffff888092200140 RCX: 0000000000000000
[   34.368345] RDX: 0000000000000002 RSI: ffffffff8ba44180 RDI: ffff888092200200
[   34.375640] RBP: ffffed1012440039 R08: 0000000000000000 R09: 0000000000000000
[   34.382912] R10: 0000000000000002 R11: ffff8880a5562140 R12: 0000000000000002
[   34.390183] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff11012b5ff87
[   34.397464] FS:  00000000014c3880(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
[   34.405706] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.411577] CR2: 0000000020000040 CR3: 0000000098a68000 CR4: 00000000001406f0
[   34.418842] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.426101] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.433366] Call Trace:
[   34.435990]  ? log_write_hva+0x310/0x310
[   34.440086]  ? debug_check_no_obj_freed+0x2c0/0x674
[   34.445124]  ? lock_downgrade+0x740/0x740
[   34.449337]  ? iov_iter_init+0xa6/0x1c0
[   34.453350]  __vfs_write+0x44c/0x630
[   34.457086]  ? kernel_read+0x110/0x110
[   34.460994]  ? rw_verify_area+0xe1/0x2a0
[   34.465063]  vfs_write+0x17f/0x4d0
[   34.468605]  SyS_write+0xf2/0x210
[   34.472055]  ? SyS_read+0x210/0x210
[   34.475670]  ? __do_page_fault+0x159/0xad0
[   34.479901]  ? do_syscall_64+0x4c/0x640
[   34.483900]  ? SyS_read+0x210/0x210
[   34.487531]  do_syscall_64+0x1d5/0x640
[   34.491437]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   34.496660] RIP: 0033:0x440279
[   34.499850] RSP: 002b:00007ffe78d3cf68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   34.507567] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440279
[   34.514838] RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000003
[   34.522192] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[   34.529486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80
[   34.536768] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000
[   34.544029] Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 cd 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 96 06 00 00 49 8b 6d 00 48 85 ed 0f 84 e4 03 
[   34.563183] RIP: vhost_chr_write_iter+0x863/0x10f0 RSP: ffff888095affc00
[   34.570483] ---[ end trace 7c02749ed5545998 ]---
[   34.575392] Kernel panic - not syncing: Fatal exception
[   34.580821] Kernel Offset: disabled
[   34.584446] Rebooting in 86400 seconds..