FKIE_CVE-2024-27389

Vulnerability from fkie_nvd - Published: 2024-05-01 13:15 - Updated: 2025-09-18 16:14
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: pstore: inode: Only d_invalidate() is needed Unloading a modular pstore backend with records in pstorefs would trigger the dput() double-drop warning: WARNING: CPU: 0 PID: 2569 at fs/dcache.c:762 dput.part.0+0x3f3/0x410 Using the combo of d_drop()/dput() (as mentioned in Documentation/filesystems/vfs.rst) isn't the right approach here, and leads to the reference counting problem seen above. Use d_invalidate() and update the code to not bother checking for error codes that can never happen. ---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/340682ed1932b8e3bd0bfc6c31a0c6354eb57cc6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4cdf9006fc095af71da80e9b5f48a32e991b9ed3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a43e0fc5e9134a46515de2f2f8d4100b74e50de3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb9e802e49c24eeb3af35e9e8c04d526f35f112aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db6e5e16f1ee9e3b01d2f71c7f0ba945f4bf0f4ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/340682ed1932b8e3bd0bfc6c31a0c6354eb57cc6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4cdf9006fc095af71da80e9b5f48a32e991b9ed3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a43e0fc5e9134a46515de2f2f8d4100b74e50de3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cb9e802e49c24eeb3af35e9e8c04d526f35f112aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/db6e5e16f1ee9e3b01d2f71c7f0ba945f4bf0f4ePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore: inode: Only d_invalidate() is needed\n\nUnloading a modular pstore backend with records in pstorefs would\ntrigger the dput() double-drop warning:\n\n  WARNING: CPU: 0 PID: 2569 at fs/dcache.c:762 dput.part.0+0x3f3/0x410\n\nUsing the combo of d_drop()/dput() (as mentioned in\nDocumentation/filesystems/vfs.rst) isn\u0027t the right approach here, and\nleads to the reference counting problem seen above. Use d_invalidate()\nand update the code to not bother checking for error codes that can\nnever happen.\n\n---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pstore: inode: solo se necesita d_invalidate(). La descarga de un backend modular de pstore con registros en pstorefs activar\u00eda la advertencia de doble ca\u00edda de dput(): ADVERTENCIA: CPU: 0 PID: 2569 en fs/dcache.c:762 dput.part.0+0x3f3/0x410 Usar la combinaci\u00f3n de d_drop()/dput() (como se menciona en Documentation/filesystems/vfs.rst) no es el enfoque correcto aqu\u00ed, y conduce al problema de recuento de referencias visto anteriormente. Utilice d_invalidate() y actualice el c\u00f3digo para no molestarse en buscar c\u00f3digos de error que nunca suceder\u00e1n. ---"
    }
  ],
  "id": "CVE-2024-27389",
  "lastModified": "2025-09-18T16:14:57.333",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2024-05-01T13:15:51.653",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-415"
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      ],
      "source": "nvd@nist.gov",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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