{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-37863",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:23.958Z",
        "datePublished": "2025-05-09T06:43:54.250Z",
        "dateUpdated": "2026-05-23T15:58:27.343Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:58:27.343Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: don't allow datadir only\n\nIn theory overlayfs could support upper layer directly referring to a data\nlayer, but there's no current use case for this.\n\nOriginally, when data-only layers were introduced, this wasn't allowed,\nonly introduced by the \"datadir+\" feature, but without actually handling\nthis case, resulting in an Oops.\n\nFix by disallowing datadir without lowerdir."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/overlayfs/super.c"
                    ],
                    "versions": [
                        {
                            "version": "cc0918b3582c98f12cfb30bf7496496d14bff3e9",
                            "lessThan": "0874b629f65320778e7e3e206177770666d9db18",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "24e16e385f2272b1a9df51337a5c32d28a29c7ad",
                            "lessThan": "b9e3579213ba648fa23f780e8d53e99011c62331",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "24e16e385f2272b1a9df51337a5c32d28a29c7ad",
                            "lessThan": "21d2ffb0e9838a175064c22f3a9de97d1f56f27d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "24e16e385f2272b1a9df51337a5c32d28a29c7ad",
                            "lessThan": "eb3a04a8516ee9b5174379306f94279fc90424c4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.23",
                            "lessThan": "6.6.88",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/overlayfs/super.c"
                    ],
                    "versions": [
                        {
                            "version": "6.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.88",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.25",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.4",
                            "lessThanOrEqual": "6.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.23",
                                    "versionEndExcluding": "6.6.88"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.12.25"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.14.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.15"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4"
                }
            ],
            "title": "ovl: don't allow datadir only",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}