------------[ 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+0x1506/0x1700 virt/kvm/pfncache.c:267, CPU#1: syz.5.5613/24993 Modules linked in: CPU: 1 UID: 0 PID: 24993 Comm: syz.5.5613 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 RIP: 0010:__kvm_gpc_refresh+0x1506/0x1700 virt/kvm/pfncache.c:267 Code: c6 05 c2 21 66 10 01 48 c7 c7 e7 c0 68 8e be 49 04 00 00 48 c7 c2 a0 42 22 8c e8 05 68 63 00 e9 8b ee ff ff e8 ab 13 88 00 90 <0f> 0b 90 bb ea ff ff ff 49 bf 00 00 00 00 00 fc ff df e9 55 f6 ff RSP: 0018:ffffc90004a37200 EFLAGS: 00010293 RAX: ffffffff81410d85 RBX: ffff888000000000 RCX: ffff8880282fbe80 RDX: 0000000000000000 RSI: ffff888000000000 RDI: ffff888000000000 RBP: ffffc90004a37390 R08: ffffffff91bdf8bf R09: 1ffffffff237bf17 R10: dffffc0000000000 R11: fffffbfff237bf18 R12: 1ffff92000946e54 R13: ffff8880870d9b78 R14: ffff888000000000 R15: ffffffffffffff01 FS: 00007efddf7b36c0(0000) GS:ffff888123509000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1e3ff82f8 CR3: 000000004996c000 CR4: 00000000003526f0 Call Trace: kvm_gpc_refresh+0xe1/0x110 virt/kvm/pfncache.c:382 kvm_xen_set_evtchn+0x14f/0x220 arch/x86/kvm/xen.c:2014 kvm_xen_hvm_evtchn_send+0x120/0x1e0 arch/x86/kvm/xen.c:2105 kvm_arch_vm_ioctl+0xfa5/0x1a10 arch/x86/kvm/x86.c:4681 kvm_vm_ioctl+0x883/0xcb0 virt/kvm/kvm_main.c:5491 vfs_ioctl fs/ioctl.c:52 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x16a/0x530 arch/x86/entry/syscall_64.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efdde9a8f19 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:00007efddf7b3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007efddec26090 RCX: 00007efdde9a8f19 RDX: 0000200000000d40 RSI: 00000000400caed0 RDI: 000000000000002a RBP: 00007efddea37f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007efddec26128 R14: 00007efddec26090 R15: 00007efdded4fa48