net: phy: dp83869: fix memory corruption when enabling fiber

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/phy/dp83869.c"
                    ],
                    "versions": [
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "21b5af7f0c99b3bf1fd02016e6708b613acbcaf4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "ad0d76b8ee5db063791cc2e7a30ffc9852ac37c4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "c1944b4253649fc6f2fb53e7d6302eb414d2182c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "9ca634676ff66e1d616259e136f96f96b2a1759a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "e3f2de32dae35bc7d173377dc97b5bc9fcd9fc84",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a29de52ba2a156873505d8b8cef44e69925b8114",
                            "lessThan": "a842e443ca8184f2dc82ab307b43a8b38defd6a5",
                            "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/net/phy/dp83869.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.227",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.168",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.113",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.57",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.11.4",
                            "lessThanOrEqual": "6.11.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }