FKIE_CVE-2024-36923

Vulnerability from fkie_nvd - Published: 2024-05-30 16:15 - Updated: 2025-11-03 22:17
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: fs/9p: fix uninitialized values during inode evict If an iget fails due to not being able to retrieve information from the server then the inode structure is only partially initialized. When the inode gets evicted, references to uninitialized structures (like fscache cookies) were being made. This patch checks for a bad_inode before doing anything other than clearing the inode from the cache. Since the inode is bad, it shouldn't have any state associated with it that needs to be written back (and there really isn't a way to complete those anyways).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18cf7026355187b8d2b4cdfed61dbf873e9d29ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b4cb6e91f19b81217ad98142ee53a1ab25893fdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a741b80b3457f079cf637e47800fb7bf8038ad6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6630036b7c228f57c7893ee0403e92c2db2cd21dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1b4cb6e91f19b81217ad98142ee53a1ab25893fdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6630036b7c228f57c7893ee0403e92c2db2cd21dPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F88D2BE0-AC46-46DF-9D63-C6A44E15B813",
              "versionEndExcluding": "6.1.119",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/9p: fix uninitialized values during inode evict\n\nIf an iget fails due to not being able to retrieve information\nfrom the server then the inode structure is only partially\ninitialized.  When the inode gets evicted, references to\nuninitialized structures (like fscache cookies) were being\nmade.\n\nThis patch checks for a bad_inode before doing anything other\nthan clearing the inode from the cache.  Since the inode is\nbad, it shouldn\u0027t have any state associated with it that needs\nto be written back (and there really isn\u0027t a way to complete\nthose anyways)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/9p: corrige valores no inicializados durante el desalojo de inodo. Si un iget falla debido a que no puede recuperar informaci\u00f3n del servidor, entonces la estructura del inodo solo se inicializa parcialmente. Cuando se expulsa el inodo, se hac\u00edan referencias a estructuras no inicializadas (como cookies fscache). Este parche busca un bad_inode antes de hacer cualquier otra cosa que no sea borrar el inodo del cach\u00e9. Dado que el inodo es malo, no deber\u00eda tener ning\u00fan estado asociado que deba reescribirse (y realmente no hay una manera de completarlo de todos modos)."
    }
  ],
  "id": "CVE-2024-36923",
  "lastModified": "2025-11-03T22:17:00.370",
  "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",
        "type": "Primary"
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  "published": "2024-05-30T16:15:15.547",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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