audit: type=1326 audit(1538855619.612:36): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=7777 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45a3da code=0xffff0000
==================================================================
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: 7768 Comm: syz-executor0 Not tainted 4.19.0-rc4+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __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
 generic_exec_single+0x17b/0x500 kernel/smp.c:153
 smp_call_function_single+0x290/0x500 kernel/smp.c:299
 loaded_vmcs_clear arch/x86/kvm/vmx.c:2218 [inline]
 free_loaded_vmcs arch/x86/kvm/vmx.c:4749 [inline]
 vmx_free_vcpu+0x582/0x8a0 arch/x86/kvm/vmx.c:10945
 kvm_arch_vcpu_free arch/x86/kvm/x86.c:8438 [inline]
 kvm_free_vcpus arch/x86/kvm/x86.c:8888 [inline]
 kvm_arch_destroy_vm+0x727/0xcd0 arch/x86/kvm/x86.c:8985
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:752 [inline]
 kvm_put_kvm+0x100b/0x1cf0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:773
 kvm_vcpu_release+0xad/0x100 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2407
 __fput+0x4e8/0xda0 fs/file_table.c:278
 ____fput+0x37/0x40 fs/file_table.c:309
 task_work_run+0x467/0x500 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:166 [inline]
 prepare_exit_to_usermode+0x364/0x470 arch/x86/entry/common.c:197
 syscall_return_slowpath+0x112/0x880 arch/x86/entry/common.c:268
 do_syscall_64+0xe4/0x100 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x411051
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:0000000000a3fd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000411051
RDX: 0000000000000000 RSI: 0000000000731c60 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000a3fcc0 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 000000000000000e 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
==================================================================