x86/cfi: Fix FineIBT hash offset in cfi_get_func_hash()

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kernel/alternative.c"
                    ],
                    "versions": [
                        {
                            "version": "85a2d4a890dce3cfc9c14aa91afc3dd7af8e3bf5",
                            "lessThan": "cd9b4595d6283f9b8a35d7ae607508de45a351ce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "85a2d4a890dce3cfc9c14aa91afc3dd7af8e3bf5",
                            "lessThan": "67cf94c30a8b5ebc839f282f5c5a522b35903524",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "85a2d4a890dce3cfc9c14aa91afc3dd7af8e3bf5",
                            "lessThan": "5a5d26f2cfe13467166219f6bf58099326912ddb",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kernel/alternative.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }