ghsa-h6p5-jr3p-xjfg
Vulnerability from github
Published
2025-05-09 09:33
Modified
2025-05-09 09:33
Details

In the Linux kernel, the following vulnerability has been resolved:

ovl: don't allow datadir only

In theory overlayfs could support upper layer directly referring to a data layer, but there's no current use case for this.

Originally, when data-only layers were introduced, this wasn't allowed, only introduced by the "datadir+" feature, but without actually handling this case, resulting in an Oops.

Fix by disallowing datadir without lowerdir.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37863"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-09T07:16:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: don\u0027t allow datadir only\n\nIn theory overlayfs could support upper layer directly referring to a data\nlayer, but there\u0027s no current use case for this.\n\nOriginally, when data-only layers were introduced, this wasn\u0027t allowed,\nonly introduced by the \"datadir+\" feature, but without actually handling\nthis case, resulting in an Oops.\n\nFix by disallowing datadir without lowerdir.",
  "id": "GHSA-h6p5-jr3p-xjfg",
  "modified": "2025-05-09T09:33:20Z",
  "published": "2025-05-09T09:33:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37863"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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