device lo left promiscuous mode
==================================================================
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: 1 PID: 7872 Comm: syz-executor5 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x4b/0x70 kernel/locking/spinlock.c:184
Code: 00 8b b8 88 0c 00 00 48 8b 00 48 85 c0 75 28 48 89 df e8 48 23 56 f7 c6 00 00 c6 03 00 4d 85 e4 75 1c 4c 89 7d d8 ff 75 d8 9d <48> 83 c4 08 5b 41 5c 41 5e 41 5f 5d c3 e8 83 2d 56 f7 eb d1 44 89
RSP: 0018:ffff880179d1fc60 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: ffff88017a3d611c RBX: ffff88017a36611c RCX: ffff88017a39e11c
RDX: ffff88017a39e11c RSI: aaaaaaaaaaaab000 RDI: ffffea0008dd4640
RBP: ffff880179d1fc88 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff816f2a30 R12: 0000000000000000
R13: ffff88021fcba598 R14: 00000000fac0000c R15: 0000000000000286
 task_rq_unlock kernel/sched/sched.h:1798 [inline]
 wake_up_new_task+0x17f9/0x1ae0 kernel/sched/core.c:2434
 _do_fork+0x9ab/0x1330 kernel/fork.c:2192
 __do_sys_clone kernel/fork.c:2274 [inline]
 __se_sys_clone+0xf6/0x110 kernel/fork.c:2268
 __x64_sys_clone+0x62/0x80 kernel/fork.c:2268
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x459f49
Code: ff 48 85 f6 0f 84 47 8a fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c 1e 8a fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75
RSP: 002b:0000000000a3fac8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffb2ac23700 RCX: 0000000000459f49
RDX: 00007ffb2ac239d0 RSI: 00007ffb2ac22db0 RDI: 00000000003d0f00
RBP: 0000000000a3fcd0 R08: 00007ffb2ac23700 R09: 00007ffb2ac23700
R10: 00007ffb2ac239d0 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000a3fb7f R14: 00007ffb2ac239c0 R15: 0000000000000001

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
==================================================================