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.
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WARNING: CPU: 1 PID: 5446 at arch/x86/kvm/lapic.c:345 kvm_recalculate_logical_map arch/x86/kvm/lapic.c:345 [inline]
WARNING: CPU: 1 PID: 5446 at arch/x86/kvm/lapic.c:345 kvm_recalculate_apic_map+0xc87/0x1650 arch/x86/kvm/lapic.c:449
Modules linked in:
CPU: 1 PID: 5446 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-g2ab795141095 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:kvm_recalculate_logical_map arch/x86/kvm/lapic.c:345 [inline]
RIP: 0010:kvm_recalculate_apic_map+0xc87/0x1650 arch/x86/kvm/lapic.c:449
Code: 7c 00 83 fb 01 7e 30 83 fb 02 74 64 83 fb 03 74 75 83 fb 04 0f 85 c1 00 00 00 e8 64 93 7c 00 e9 c0 00 00 00 e8 5a 93 7c 00 90 <0f> 0b 90 48 8b 5c 24 20 e9 4f ff ff ff 85 db 0f 84 8d 00 00 00 83
RSP: 0018:ffffc90004ab73e0 EFLAGS: 00010293
RAX: ffffffff81198236 RBX: 0000000000000001 RCX: ffff8880237a1e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000082000
RBP: ffffc90004ab7540 R08: ffffffff81198145 R09: 1ffffffff1f5833d
R10: dffffc0000000000 R11: fffffbfff1f5833e R12: ffffc90004ab74c0
R13: dffffc0000000000 R14: 0000000000082000 R15: ffff888025db0024
FS:  00007f81235c16c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002004d008 CR3: 0000000073d94000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvm_apic_set_state+0x39d/0x15c0 arch/x86/kvm/lapic.c:3031
 kvm_vcpu_ioctl_set_lapic+0x20/0x190 arch/x86/kvm/x86.c:5141
 kvm_arch_vcpu_ioctl+0x136d/0x2cd0 arch/x86/kvm/x86.c:5916
 kvm_vcpu_ioctl+0x6e0/0xd00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4578
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f812287cae9
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:00007f81235c10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f812299bf80 RCX: 00007f812287cae9
RDX: 0000000020000880 RSI: 000000004400ae8f RDI: 0000000000000005
RBP: 00007f81228c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f812299bf80 R15: 00007ffd1d753ff8
 </TASK>