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BUG: KMSAN: uninit-value in __vmcs_writel arch/x86/kvm/vmx/ops.h:117 [inline]
BUG: KMSAN: uninit-value in vmcs_write32 arch/x86/kvm/vmx/ops.h:138 [inline]
BUG: KMSAN: uninit-value in vmx_queue_exception+0x4e5/0x8c0 arch/x86/kvm/vmx/vmx.c:1496
CPU: 1 PID: 11901 Comm: syz-executor5 Not tainted 5.0.0-rc1+ #9
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+0x173/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x12e/0x2a0 mm/kmsan/kmsan.c:600
 __msan_warning+0x82/0xf0 mm/kmsan/kmsan_instr.c:313
 __vmcs_writel arch/x86/kvm/vmx/ops.h:117 [inline]
 vmcs_write32 arch/x86/kvm/vmx/ops.h:138 [inline]
 vmx_queue_exception+0x4e5/0x8c0 arch/x86/kvm/vmx/vmx.c:1496
 inject_pending_event arch/x86/kvm/x86.c:7244 [inline]
 vcpu_enter_guest arch/x86/kvm/x86.c:7740 [inline]
 vcpu_run arch/x86/kvm/x86.c:7971 [inline]
 kvm_arch_vcpu_ioctl_run+0x7428/0x11300 arch/x86/kvm/x86.c:8171
 kvm_vcpu_ioctl+0xfe9/0x1d20 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2673
 do_vfs_ioctl+0xebd/0x2bf0 fs/ioctl.c:46
 ksys_ioctl fs/ioctl.c:713 [inline]
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:718
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:718
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457e39
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fedde9f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fedde9f26d4
R13: 00000000004c0d90 R14: 00000000004d2a98 R15: 00000000ffffffff

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:205 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:220 [inline]
 kmsan_internal_chain_origin+0x134/0x230 mm/kmsan/kmsan.c:426
 __msan_chain_origin+0x70/0xe0 mm/kmsan/kmsan_instr.c:200
 kvm_multiple_exception arch/x86/kvm/x86.c:487 [inline]
 kvm_queue_exception_e_p arch/x86/kvm/x86.c:558 [inline]
 kvm_inject_page_fault+0xa03/0xe80 arch/x86/kvm/x86.c:582
 nested_vmx_get_vmptr arch/x86/kvm/vmx/nested.c:4101 [inline]
 handle_vmon+0x670/0xb00 arch/x86/kvm/vmx/nested.c:4230
 vmx_handle_exit+0x17a9/0x6690 arch/x86/kvm/vmx/vmx.c:5849
 vcpu_enter_guest arch/x86/kvm/x86.c:7908 [inline]
 vcpu_run arch/x86/kvm/x86.c:7971 [inline]
 kvm_arch_vcpu_ioctl_run+0xa556/0x11300 arch/x86/kvm/x86.c:8171
 kvm_vcpu_ioctl+0xfe9/0x1d20 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2673
 do_vfs_ioctl+0xebd/0x2bf0 fs/ioctl.c:46
 ksys_ioctl fs/ioctl.c:713 [inline]
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:718
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:718
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Local variable description: ----e.i@handle_vmon
Variable was created at:
 handle_vmon+0x5d/0xb00 arch/x86/kvm/vmx/nested.c:4192
 vmx_handle_exit+0x17a9/0x6690 arch/x86/kvm/vmx/vmx.c:5849
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