===================================================== 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 em_ret_far_imm+0x39/0x4f0 arch/x86/kvm/emulate.c:2270 x86_emulate_insn+0x1d81/0x5800 arch/x86/kvm/emulate.c:5289 x86_emulate_instruction+0x13c5/0x3090 arch/x86/kvm/x86.c:9101 kvm_emulate_instruction arch/x86/kvm/x86.c:9181 [inline] complete_emulated_io arch/x86/kvm/x86.c:11132 [inline] complete_emulated_mmio+0x70a/0x8b0 arch/x86/kvm/x86.c:11192 kvm_arch_vcpu_ioctl_run+0x18e2/0xc680 arch/x86/kvm/x86.c:11304 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:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Local variable eip created at: em_ret_far+0x3a/0x340 arch/x86/kvm/emulate.c:2243 em_ret_far_imm+0x39/0x4f0 arch/x86/kvm/emulate.c:2270 CPU: 1 PID: 15622 Comm: syz-executor.1 Not tainted 6.7.0-rc4-syzkaller-00384-gb10a3ccaf6e3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 =====================================================