drm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl()

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/xe/xe_oa.c"
                    ],
                    "versions": [
                        {
                            "version": "cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0",
                            "lessThan": "c6d30b65b7a44dac52ad49513268adbf19eab4a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0",
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                            "status": "affected",
                            "versionType": "git"
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                        {
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                            "lessThan": "dcb171931954c51a1a7250d558f02b8f36570783",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/xe/xe_oa.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.64",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.4",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }