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.
general protection fault, probably for non-canonical address 0xdffffc0000000013: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f]
CPU: 0 PID: 6789 Comm: syz-executor028 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__apic_accept_irq+0x48/0x710 arch/x86/kvm/lapic.c:1039
Code: 24 04 41 89 f6 48 89 fb 48 bd 00 00 00 00 00 fc ff df e8 9b 62 62 00 48 89 5c 24 18 4c 8d bb 98 00 00 00 4d 89 fc 49 c1 ec 03 <41> 80 3c 2c 00 74 08 4c 89 ff e8 a9 46 a1 00 49 8b 07 48 89 44 24
RSP: 0018:ffffc900019778b8 EFLAGS: 00010202
RAX: ffffffff81124095 RBX: 0000000000000000 RCX: ffff8880a8f9a0c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: ffff8880a8f9a0c0 R12: 0000000000000013
R13: ffff8880a91f7e88 R14: 0000000000000000 R15: 0000000000000098
FS:  00000000013cb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faef00666c0 CR3: 00000000a33e0000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kvm_arch_async_page_present+0x49a/0x650 arch/x86/kvm/x86.c:10580
 kvm_check_async_pf_completion+0x1f0/0x360 arch/x86/kvm/../../../virt/kvm/async_pf.c:151
 vcpu_enter_guest+0x3f3d/0x89a0 arch/x86/kvm/x86.c:8437
 vcpu_run+0x352/0xcd0 arch/x86/kvm/x86.c:8669
 kvm_arch_vcpu_ioctl_run+0x451/0x8f0 arch/x86/kvm/x86.c:8890
 kvm_vcpu_ioctl+0x64f/0xa60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3163
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl fs/ioctl.c:771 [inline]
 __do_sys_ioctl fs/ioctl.c:780 [inline]
 __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:778
 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x440299
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff798b3338 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440299
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b20
R13: 0000000000401bb0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 0012f5760ea23444 ]---
RIP: 0010:__apic_accept_irq+0x48/0x710 arch/x86/kvm/lapic.c:1039
Code: 24 04 41 89 f6 48 89 fb 48 bd 00 00 00 00 00 fc ff df e8 9b 62 62 00 48 89 5c 24 18 4c 8d bb 98 00 00 00 4d 89 fc 49 c1 ec 03 <41> 80 3c 2c 00 74 08 4c 89 ff e8 a9 46 a1 00 49 8b 07 48 89 44 24
RSP: 0018:ffffc900019778b8 EFLAGS: 00010202
RAX: ffffffff81124095 RBX: 0000000000000000 RCX: ffff8880a8f9a0c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: ffff8880a8f9a0c0 R12: 0000000000000013
R13: ffff8880a91f7e88 R14: 0000000000000000 R15: 0000000000000098
FS:  00000000013cb880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42a403e078 CR3: 00000000a33e0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400