fkie_cve-2025-37863
Vulnerability from fkie_nvd
Published
2025-05-09 07:16
Modified
2025-05-12 17:32
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ovl: no se permite solo datadir. En teor\u00eda, overlayfs podr\u00eda permitir que la capa superior haga referencia directa a una capa de datos, pero actualmente no existe un caso pr\u00e1ctico para esto. Originalmente, cuando se introdujeron las capas de solo datos, esto no se permit\u00eda; solo se introdujo mediante la funci\u00f3n \"datadir+\", pero sin gestionar este caso, lo que resultaba en un error. Se soluciona deshabilitando datadir sin lowerdir."
    }
  ],
  "id": "CVE-2025-37863",
  "lastModified": "2025-05-12T17:32:32.760",
  "metrics": {},
  "published": "2025-05-09T07:16:07.317",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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