kvm: vcpu 4: requested 128 ns lapic timer period limited to 200000 ns kvm: vcpu 4: requested lapic timer restore with starting count register 0x390=1812281087 (231971979136 ns) > initial count (200000 ns). Using initial count to start timer. ------------[ cut here ]------------ WARNING: CPU: 2 PID: 7071 at arch/x86/kvm/x86.c:11118 kvm_arch_vcpu_ioctl_run+0x16da/0x19b0 arch/x86/kvm/x86.c:11118 Modules linked in: CPU: 2 PID: 7071 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller-00013-g53663f4103ff #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x16da/0x19b0 arch/x86/kvm/x86.c:11118 Code: c7 c7 c0 85 62 8a c6 05 f8 ae 81 0d 01 e8 0e 72 38 00 0f 0b e9 be fc ff ff e8 a2 b0 71 00 0f 0b e9 36 fc ff ff e8 96 b0 71 00 <0f> 0b e9 b0 fb ff ff e8 8a b0 71 00 0f b6 05 c9 ae 81 0d 31 ff 89 RSP: 0018:ffffc90005c0fce0 EFLAGS: 00010283 RAX: 00000000000010f8 RBX: ffff888114060040 RCX: ffffc900039c1000 RDX: 0000000000040000 RSI: ffffffff8113702a RDI: 0000000000000001 RBP: ffff888114388000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88811406006c R13: 0000000000000001 R14: ffff888114060118 R15: ffff888114060070 FS: 00007fe6706a46c0(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f22a000 CR3: 000000010cc18000 CR4: 0000000000352ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_vcpu_ioctl+0x59f/0x1040 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4124 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe66f87cae9 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:00007fe6706a40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe66f99bf80 RCX: 00007fe66f87cae9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007fe66f8c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fe66f99bf80 R15: 00007ffd5396e608