L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details.
8021q: adding VLAN 0 to HW filter on device team0
==================================================================
BUG: KMSAN: uninit-value in vmcs_clear arch/x86/kvm/vmx.c:2119 [inline]
BUG: KMSAN: uninit-value in loaded_vmcs_init+0x343/0x590 arch/x86/kvm/vmx.c:2126
CPU: 0 PID: 7144 Comm: syz-executor3 Not tainted 4.19.0-rc4+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x306/0x460 lib/dump_stack.c:113
 kmsan_report+0x1a3/0x2d0 mm/kmsan/kmsan.c:917
 __msan_warning+0x7c/0xe0 mm/kmsan/kmsan_instr.c:500
 vmcs_clear arch/x86/kvm/vmx.c:2119 [inline]
 loaded_vmcs_init+0x343/0x590 arch/x86/kvm/vmx.c:2126
 __loaded_vmcs_clear+0x2fb/0x3c0 arch/x86/kvm/vmx.c:2209
 flush_smp_call_function_queue+0x404/0x770 kernel/smp.c:243
 generic_smp_call_function_single_interrupt+0x1f/0x30 kernel/smp.c:192
 smp_call_function_single_interrupt+0x2f7/0x530 arch/x86/kernel/smp.c:296
 call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:891
 </IRQ>
RIP: 0010:memset_erms+0xb/0x10 arch/x86/lib/memset_64.S:66
Code: 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01
RSP: 0018:ffff88014ae7f108 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: ffff88014af3f2ff RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 00000000ffffffff RDI: ffff88014af3f210
RBP: ffff88014ae7f1a8 R08: ffffffff7fffffff R09: ffff88014af3f20f
R10: 000000ffffffffff R11: 0000000000000000 R12: 0000000000000001
R13: ffff88014ae7f20f R14: ffff88015e373c00 R15: 0000000000000001
 page_remove_rmap+0xee/0x1760 mm/rmap.c:1298
 zap_pte_range mm/memory.c:1339 [inline]
 zap_pmd_range mm/memory.c:1441 [inline]
 zap_pud_range mm/memory.c:1470 [inline]
 zap_p4d_range mm/memory.c:1491 [inline]
 unmap_page_range+0x203d/0x3db0 mm/memory.c:1512
 unmap_single_vma+0x445/0x5e0 mm/memory.c:1557
 unmap_vmas+0x251/0x380 mm/memory.c:1587
 exit_mmap+0x50e/0xa00 mm/mmap.c:3093
 __mmput+0x16d/0x700 kernel/fork.c:1002
 mmput+0x178/0x1f0 kernel/fork.c:1023
 exec_mmap fs/exec.c:1043 [inline]
 flush_old_exec+0x174d/0x2930 fs/exec.c:1276
 load_elf_binary+0x151b/0x9230 fs/binfmt_elf.c:869
 search_binary_handler+0x49e/0x1030 fs/exec.c:1653
 exec_binprm fs/exec.c:1695 [inline]
 __do_execve_file+0x22c5/0x3340 fs/exec.c:1819
 do_execveat_common fs/exec.c:1866 [inline]
 do_execve fs/exec.c:1883 [inline]
 __do_sys_execve fs/exec.c:1964 [inline]
 __se_sys_execve+0xec/0x110 fs/exec.c:1959
 __x64_sys_execve+0x4a/0x70 fs/exec.c:1959
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x455e27
Code: Bad RIP value.
RSP: 002b:0000000000a3fac8 EFLAGS: 00000207 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000455e27
RDX: 00007ffc630d1fe8 RSI: 0000000000a3fb00 RDI: 00000000004dac7b
RBP: 0000000000a3fc80 R08: 0000000000000000 R09: 000000000000001a
R10: 0000000000000008 R11: 0000000000000207 R12: 0000000000a3feb0
R13: 0000000000a3fe28 R14: 0000000000000000 R15: 0000000000000000

Local variable description: ----error.i@loaded_vmcs_init
Variable was created at:
 loaded_vmcs_init+0x8a/0x590 arch/x86/kvm/vmx.c:2125
 __loaded_vmcs_clear+0x2fb/0x3c0 arch/x86/kvm/vmx.c:2209
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