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CVE-2008-4302

Status: ModifiedMedium (5.5)—💥 Exploit

fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (3)

Debian — Debian LinuxLinux — Linux KernelRedhat — Enterprise Linux

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2008-4302",
  "cveTags": [],
  "metrics": {
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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  "published": "2008-09-29T17:17:29.283",
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool."
    },
    {
      "lang": "es",
      "value": "fs/splice.c en el subsistema \"splice\" en el kernel de Linux anterior a v2.6.22.2 no maneja de forma adecuada un fallo en la función add_to_page_cache_Lru, y como consecuencia intentar desbloquear una página que no está bloqueada, lo que permite que usuarios locales puedan provocar una denegación de servicio (Error del Kernel y caída del sistema), como se demostró por la herramienta \"fio I/O\"."
    }
  ],
  "lastModified": "2026-06-16T22:57:33.567",
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      "nodes": [
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  "vendorComments": [
    {
      "comment": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG.\n\nIt was addressed in Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2008-0957.html",
      "lastModified": "2009-01-15T00:00:00",
      "organization": "Red Hat"
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}