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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: 8344 Comm: blkid 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:native_restore_fl arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:81 [inline]
RIP: 0010:__msan_poison_alloca+0x16b/0x210 mm/kmsan/kmsan_instr.c:462
Code: 24 20 be 20 00 48 00 e8 f3 82 bf 02 41 ff 8e 7c 09 00 00 0f 85 98 00 00 00 89 c3 e8 8f cc 36 ff 4c 89 64 24 18 ff 74 24 18 9d <48> 8b 7c 24 08 44 89 fe 89 da e8 66 fd ff ff 65 48 8b 04 25 28 00
RSP: 0018:ffff8801ad11fa10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04
RAX: 00000000976000ba RBX: 00000000976000ba RCX: ffff8801ad11fa50
RDX: 0000000000000004 RSI: 0000000000000004 RDI: 000000006aad8eb6
RBP: ffff8801ad11fab0 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000001 R11: ffffffff81f2a380 R12: 0000000000000246
R13: ffff8801ad11fc70 R14: ffff8801638cbc00 R15: 0000000000000010
 perf_event_mmap+0x8c/0x2430 kernel/events/core.c:7416
 do_brk_flags+0x17cc/0x1af0 mm/mmap.c:2997
 __do_sys_brk mm/mmap.c:248 [inline]
 __se_sys_brk+0x846/0xcc0 mm/mmap.c:191
 __x64_sys_brk+0x32/0x50 mm/mmap.c:191
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x7ff9879ab20a
Code: 03 01 00 00 00 0f 1f 00 b8 ff ff ff ff 48 8b 1c 24 48 8b 6c 24 08 4c 8b 64 24 10 48 83 c4 18 c3 48 89 fa b8 0c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 48 8b 0d 57 fc 2a 00 48 89 01 31 c9 48 39
RSP: 002b:00007fff4d87e7b8 EFLAGS: 00000206 ORIG_RAX: 000000000000000c
RAX: ffffffffffffffda RBX: 0000000000abb000 RCX: 00007ff9879ab20a
RDX: 0000000000adc000 RSI: 0000000000000008 RDI: 0000000000adc000
RBP: 0000000000021000 R08: 00007ff987c5ce40 R09: 00007ff9878d7c60
R10: 0000000000091a20 R11: 0000000000000206 R12: 00007ff987c5def0
R13: 0000000000000000 R14: 0000000000021000 R15: 0000000000021000

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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