------------[ cut here ]------------
WARNING: CPU: 3 PID: 5588 at arch/x86/kvm/../../../virt/kvm/pfncache.c:247 __kvm_gpc_refresh+0x15e2/0x2200 arch/x86/kvm/../../../virt/kvm/pfncache.c:247
Modules linked in:
CPU: 3 PID: 5588 Comm: syz-executor.2 Not tainted 6.9.0-rc2-syzkaller-00207-ge8b0ccb2a787 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__kvm_gpc_refresh+0x15e2/0x2200 arch/x86/kvm/../../../virt/kvm/pfncache.c:247
Code: 48 c7 c2 60 61 22 8b be 7c 03 00 00 48 c7 c7 20 61 22 8b c6 05 2d 09 be 0e 01 e8 79 54 5e 00 e9 31 fb ff ff e8 cf d1 80 00 90 <0f> 0b 90 e9 69 f7 ff ff e8 c1 d1 80 00 48 8b 54 24 40 48 b8 00 00
RSP: 0018:ffffc900047277d0 EFLAGS: 00010283
RAX: 0000000000005886 RBX: ffffffffffffffff RCX: ffffc9000379b000
RDX: 0000000000040000 RSI: ffffffff810ca081 RDI: 0000000000000000
RBP: ffff888025dfe1a8 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: ffffffff938f3200 R12: ffffffffffffffff
R13: ffff887fffffff01 R14: 0000000000000040 R15: ffffc90002f26a01
FS:  00007fe0a5fff6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30e29000 CR3: 000000001ae62000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __kvm_gpc_activate+0x251/0x3e0 arch/x86/kvm/../../../virt/kvm/pfncache.c:403
 kvm_xen_vcpu_set_attr+0xfb2/0x13c0 arch/x86/kvm/xen.c:890
 kvm_arch_vcpu_ioctl+0x170e/0x4310 arch/x86/kvm/x86.c:6265
 kvm_vcpu_ioctl+0xa2c/0x1090 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4620
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl fs/ioctl.c:890 [inline]
 __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fe0a647de69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe0a5fff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe0a65abf80 RCX: 00007fe0a647de69
RDX: 0000000020000580 RSI: 000000004048aecb RDI: 000000000000000b
RBP: 00007fe0a64ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe0a65abf80 R15: 00007ffeac4e80d8
 </TASK>