loop0: detected capacity change from 0 to 128
FAT-fs (loop0): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
FAT-fs (loop0): Invalid FSINFO signature: 0x41615252, 0x80417272 (sector = 1)
------------[ cut here ]------------
kvm_is_error_gpa(gpa) == kvm_is_error_hva(uhva)
WARNING: arch/x86/kvm/../../../virt/kvm/pfncache.c:267 at __kvm_gpc_refresh+0x1219/0x13a0 virt/kvm/pfncache.c:267, CPU#0: syz.0.0/5320
Modules linked in:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__kvm_gpc_refresh+0x1219/0x13a0 virt/kvm/pfncache.c:267
Code: c6 05 7a af ba 0e 01 48 c7 c7 99 f1 ed 8d be 34 04 00 00 48 c7 c2 00 3d c2 8b e8 32 dd 60 00 e9 6a f1 ff ff e8 08 b9 84 00 90 <0f> 0b 90 bb ea ff ff ff e9 a4 f8 ff ff e8 f5 b8 84 00 90 0f 0b 90
RSP: 0018:ffffc9000ef1f1c0 EFLAGS: 00010287
RAX: ffffffff8140f008 RBX: ffff888000000000 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000000347 RDI: 0000000000000348
RBP: ffffc9000ef1f348 R08: ffffffff9011cdb7 R09: 1ffffffff20239b6
R10: dffffc0000000000 R11: fffffbfff20239b7 R12: ffff888042fb1290
R13: dffffc0000000000 R14: ffff888000000000 R15: ffffffffffffff01
FS:  00007f157f2766c0(0000) GS:ffff88808ca56000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e9618b6168 CR3: 00000000123a9000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 kvm_gpc_refresh+0xe1/0x140 virt/kvm/pfncache.c:382
 kvm_xen_set_evtchn+0x163/0x230 arch/x86/kvm/xen.c:1942
 kvm_xen_hvm_evtchn_send+0x120/0x1e0 arch/x86/kvm/xen.c:2033
 kvm_arch_vm_ioctl+0xfb1/0x1a10 arch/x86/kvm/x86.c:7518
 kvm_vm_ioctl+0x905/0xd50 virt/kvm/kvm_main.c:5387
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f157e39c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f157f275fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f157e615fa0 RCX: 00007f157e39c799
RDX: 0000200000000600 RSI: 00000000400caed0 RDI: 0000000000000005
RBP: 00007f157e432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f157e616038 R14: 00007f157e615fa0 R15: 00007ffceb85a788
 </TASK>