===================================================== BUG: KMSAN: uninit-value in em_ret_far+0x332/0x340 arch/x86/kvm/emulate.c:2258 em_ret_far+0x332/0x340 arch/x86/kvm/emulate.c:2258 x86_emulate_insn+0x1d81/0x5800 arch/x86/kvm/emulate.c:5289 x86_emulate_instruction+0x13c5/0x3090 arch/x86/kvm/x86.c:9101 kvm_mmu_page_fault+0x100a/0x1120 arch/x86/kvm/mmu/mmu.c:5778 handle_ept_violation+0x4ef/0x7e0 arch/x86/kvm/vmx/vmx.c:5788 __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6567 [inline] vmx_handle_exit+0x1b01/0x2130 arch/x86/kvm/vmx/vmx.c:6584 vcpu_enter_guest arch/x86/kvm/x86.c:10992 [inline] vcpu_run arch/x86/kvm/x86.c:11095 [inline] kvm_arch_vcpu_ioctl_run+0x9d4f/0xc680 arch/x86/kvm/x86.c:11321 kvm_vcpu_ioctl+0xbfc/0x1770 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4161 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0x225/0x410 fs/ioctl.c:857 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b Local variable eip created at: em_ret_far+0x3a/0x340 arch/x86/kvm/emulate.c:2243 x86_emulate_insn+0x1d81/0x5800 arch/x86/kvm/emulate.c:5289 CPU: 0 PID: 21921 Comm: syz-executor.2 Not tainted 6.7.0-rc2-syzkaller-00029-g9b6de136b5f0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 =====================================================