------------[ 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#1: syz.7.4910/26045 Modules linked in: CPU: 1 UID: 0 PID: 26045 Comm: syz.7.4910 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:__kvm_gpc_refresh+0x1219/0x13a0 virt/kvm/pfncache.c:267 Code: c6 05 32 a7 ba 0e 01 48 c7 c7 99 31 ee 8d be 34 04 00 00 48 c7 c2 00 3d c2 8b e8 42 e0 60 00 e9 6a f1 ff ff e8 f8 be 84 00 90 <0f> 0b 90 bb ea ff ff ff e9 a4 f8 ff ff e8 e5 be 84 00 90 0f 0b 90 RSP: 0018:ffffc90004d371c0 EFLAGS: 00010293 RAX: ffffffff814100d8 RBX: ffff888000000000 RCX: ffff88804ea38000 RDX: 0000000000000000 RSI: ffff888000000000 RDI: ffff888000000000 RBP: ffffc90004d37348 R08: ffffffff9011d6b7 R09: 1ffffffff2023ad6 R10: dffffc0000000000 R11: fffffbfff2023ad7 R12: ffff88807d8ed290 R13: dffffc0000000000 R14: ffff888000000000 R15: ffffffffffffff01 FS: 00007fbef1aeb6c0(0000) GS:ffff888125554000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000017000 CR3: 0000000058c1a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7fbef0b9c819 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:00007fbef1aeb028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbef0e15fa0 RCX: 00007fbef0b9c819 RDX: 0000200000000980 RSI: 00000000400caed0 RDI: 0000000000000005 RBP: 00007fbef0c32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbef0e16038 R14: 00007fbef0e15fa0 R15: 00007fbef0f3fa48