------------[ 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+0x1510/0x1710 virt/kvm/pfncache.c:267, CPU#1: syz.4.2419/12917 Modules linked in: CPU: 1 UID: 0 PID: 12917 Comm: syz.4.2419 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__kvm_gpc_refresh+0x1510/0x1710 virt/kvm/pfncache.c:267 Code: c6 05 7b 00 23 10 01 48 c7 c7 4a fe 44 8e be 43 04 00 00 48 c7 c2 c0 43 02 8c e8 1b e0 62 00 e9 81 ee ff ff e8 31 3d 87 00 90 <0f> 0b 90 bb ea ff ff ff 49 bf 00 00 00 00 00 fc ff df e9 4b f6 ff RSP: 0018:ffffc90008817360 EFLAGS: 00010287 RAX: ffffffff8140d4cf RBX: ffff888000000000 RCX: 0000000000080000 RDX: ffffc90006e5d000 RSI: 00000000000003bc RDI: 00000000000003bd RBP: ffffc900088174e8 R08: ffffffff917a757f R09: 1ffffffff22f4eaf R10: dffffc0000000000 R11: fffffbfff22f4eb0 R12: 1ffff92001102e80 R13: ffff888032f99b60 R14: ffff888000000000 R15: ffffffffffffff01 FS: 00007fc58725a6c0(0000) GS:ffff888123bbf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc587259ff8 CR3: 0000000076c20000 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:1966 kvm_xen_inject_timer_irqs arch/x86/kvm/xen.c:117 [inline] kvm_xen_vcpu_get_attr+0x5b0/0xb20 arch/x86/kvm/xen.c:1258 kvm_arch_vcpu_ioctl+0x1552/0x23a0 arch/x86/kvm/x86.c:3821 kvm_vcpu_ioctl+0x7e3/0xfd0 virt/kvm/kvm_main.c:4676 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:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc58639e559 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:00007fc58725a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc586625fa0 RCX: 00007fc58639e559 RDX: 0000200000000980 RSI: 00000000c048aeca RDI: 0000000000000006 RBP: 00007fc586435ab8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc586626038 R14: 00007fc586625fa0 R15: 00007fc58674fa48