------------[ cut here ]------------
WARNING: kernel/vhost_task.c:97 at __vhost_task_wake+0xbb/0xd0, CPU#1: syz.0.1118/8534
Modules linked in:
CPU: 1 UID: 0 PID: 8534 Comm: syz.0.1118 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__vhost_task_wake+0xbb/0xd0
Code: 38 00 74 08 48 89 df e8 03 8b 95 00 48 8b 3b 5b 41 5e 41 5f e9 a6 45 01 00 e8 81 f0 30 00 90 0f 0b 90 eb 8b e8 76 f0 30 00 90 <0f> 0b 90 5b 41 5e 41 5f e9 18 17 f8 09 cc 0f 1f 80 00 00 00 00 90
RSP: 0018:ffffc90007df7680 EFLAGS: 00010293
RAX: ffffffff818eed7a RBX: ffff888109e9e400 RCX: ffff88801df29d00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90007df7750 R08: ffff888109e9e477 R09: 1ffff110213d3c8e
R10: dffffc0000000000 R11: ffffed10213d3c8f R12: 1ffff92000fbeed8
R13: dffffc0000000000 R14: 0000000000000002 R15: dffffc0000000000
FS:  00007fa794f586c0(0000) GS:ffff8881a39dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000240 CR3: 000000010fb8c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 vhost_worker_queue+0x194/0x260
 __vhost_worker_flush+0x134/0x1e0
 vhost_dev_flush+0xb2/0x130
 vhost_vsock_dev_release+0x1fb/0x3f0
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1285/0x1340
 arch_do_signal_or_restart+0xa0/0x790
 exit_to_user_mode_loop+0x72/0x130
 do_syscall_64+0x2bd/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa79418ec29
Code: Unable to access opcode bytes at 0x7fa79418ebff.
RSP: 002b:00007fa794f580e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa7943d5fa8 RCX: 00007fa79418ec29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa7943d5fa8
RBP: 00007fa7943d5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa7943d6038 R14: 00007ffd7c70f5a0 R15: 00007ffd7c70f688
 </TASK>
