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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ODEBUG: init active (active state 0) object type: hrtimer hint: xen_timer_callback+0x0/0x90 arch/x86/kvm/xen.c:903
WARNING: CPU: 1 PID: 4081 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 4081 Comm: syz-executor.0 Not tainted 5.17.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd c0 de 42 89 4c 89 ee 48 c7 c7 c0 d2 42 89 e8 ce 86 ac 04 <0f> 0b 83 05 25 85 0e 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000264f788 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8942ce60 RDI: fffff520004c9ee3
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880b9d341c7
R10: ffffed10173a6838 R11: 0000000000000001 R12: ffffffff88ed95a0
R13: ffffffff8942d7c0 R14: ffffffff815e5690 R15: ffffffff90125040
FS:  00007fb7ab7ba700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000203c8000 CR3: 0000000073697000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __debug_object_init+0x524/0xd10 lib/debugobjects.c:593
 debug_hrtimer_init kernel/time/hrtimer.c:414 [inline]
 debug_init kernel/time/hrtimer.c:468 [inline]
 hrtimer_init+0x1b/0x1e0 kernel/time/hrtimer.c:1592
 kvm_xen_init_timer arch/x86/kvm/xen.c:167 [inline]
 kvm_xen_vcpu_set_attr+0x273/0x1310 arch/x86/kvm/xen.c:683
 kvm_arch_vcpu_ioctl+0x1b4e/0x3100 arch/x86/kvm/x86.c:5666
 kvm_vcpu_ioctl+0x71d/0xbb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4072
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb7ac045209
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb7ab7ba168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb7ac157f60 RCX: 00007fb7ac045209
RDX: 0000000020003680 RSI: 000000004048aecb RDI: 000000000000000b
RBP: 00007fb7ac09f161 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbe18690f R14: 00007fb7ab7ba300 R15: 0000000000022000
 </TASK>