KVM: SEV: Do cache maintenance on the source VM *before* clearing SEV state

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/sev.c"
                    ],
                    "versions": [
                        {
                            "version": "37dfb676fafd1eef36fe0bb649607afbb0d5521b",
                            "lessThan": "8b7d4f68fef96cebe0b6dbb6e5607772337f7369",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d4cc2dff12116a700add601c0262132cc26e1b2c",
                            "lessThan": "de83ff6a4d8f3618473bedb3c4400020c22e8a8a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "93de2a6a4b91b72607136dd656edf03fb399d27f",
                            "lessThan": "973ea70393e885e540f714904e51bc6cac80e3d7",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/sev.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18.55",
                            "lessThan": "6.18.56",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "lessThan": "7.2.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }