kvm_intel: L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details.
kvm: vcpu 0: requested lapic timer restore with starting count register 0x390=2249738109 (287966477952 ns) > initial count (248453880064 ns). Using initial count to start timer.
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WARNING: arch/x86/kvm/../../../virt/kvm/kvm_main.c:3487 at kvm_read_guest_offset_cached+0x3e0/0x460 virt/kvm/kvm_main.c:3487, CPU#0: syz.0.16/6483
Modules linked in:
CPU: 0 UID: 0 PID: 6483 Comm: syz.0.16 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:kvm_read_guest_offset_cached+0x3e0/0x460 virt/kvm/kvm_main.c:3487
Code: c6 05 5c 39 70 0e 01 48 c7 c7 e6 6d aa 8d be 35 04 00 00 48 c7 c2 80 dd 81 8b e8 0b c9 60 00 e9 c8 fc ff ff e8 51 3a 83 00 90 <0f> 0b 90 b8 ea ff ff ff e9 6b ff ff ff 48 8b 5c 24 10 48 03 1c 24
RSP: 0018:ffffc90003357448 EFLAGS: 00010293
RAX: ffffffff813e2f4f RBX: 0000000000000008 RCX: ffff88801d32dac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000000 R08: ffff8880667dd6a3 R09: 1ffff1100ccfbad4
R10: dffffc0000000000 R11: ffffed100ccfbad5 R12: ffff888021fd9920
R13: ffff8880667dc5a0 R14: ffff8880667dc000 R15: 0000000000000004
FS:  00007fc58d0af6c0(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000310bc000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 apf_pageready_slot_free arch/x86/kvm/x86.c:13872 [inline]
 kvm_arch_can_dequeue_async_page_present+0x141/0x2f0 arch/x86/kvm/x86.c:13995
 kvm_check_async_pf_completion+0x102/0x3c0 virt/kvm/async_pf.c:158
 vcpu_enter_guest arch/x86/kvm/x86.c:11213 [inline]
 vcpu_run+0x22f9/0x7690 arch/x86/kvm/x86.c:11657
 kvm_arch_vcpu_ioctl_run+0x1148/0x1c90 arch/x86/kvm/x86.c:12005
 kvm_vcpu_ioctl+0x99a/0xed0 virt/kvm/kvm_main.c:4492
 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+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc58c18e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc58d0af038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc58c3b5fa0 RCX: 00007fc58c18e929
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007fc58c210ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc58c3b5fa0 R15: 00007fff9d78e9d8
 </TASK>