CVE-2025-37863 (GCVE-0-2025-37863)
Vulnerability from cvelistv5
Published
2025-05-09 06:43
Modified
2025-05-26 05:22
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: cc0918b3582c98f12cfb30bf7496496d14bff3e9
Version: 24e16e385f2272b1a9df51337a5c32d28a29c7ad
Version: 24e16e385f2272b1a9df51337a5c32d28a29c7ad
Version: 24e16e385f2272b1a9df51337a5c32d28a29c7ad
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{
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          "programFiles": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
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      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:22:33.385Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4"
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      ],
      "title": "ovl: don\u0027t allow datadir only",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37863",
    "datePublished": "2025-05-09T06:43:54.250Z",
    "dateReserved": "2025-04-16T04:51:23.958Z",
    "dateUpdated": "2025-05-26T05:22:33.385Z",
    "state": "PUBLISHED"
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  }
}


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