FKIE_CVE-2025-21814

Vulnerability from fkie_nvd - Published: 2025-02-27 20:16 - Updated: 2025-11-03 21:19
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: ptp: Ensure info->enable callback is always set The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
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\nptp: Ensure info-\u003eenable callback is always set\n\nThe ioctl and sysfs handlers unconditionally call the -\u003eenable callback.\nNot all drivers implement that callback, leading to NULL dereferences.\nExample of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c.\n\nInstead use a dummy callback if no better was specified by the driver."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ptp: Aseg\u00farese de que la devoluci\u00f3n de llamada info-\u0026gt;enable est\u00e9 siempre establecida Los controladores ioctl y sysfs llaman incondicionalmente a la devoluci\u00f3n de llamada -\u0026gt;enable. No todos los controladores implementan esa devoluci\u00f3n de llamada, lo que lleva a desreferencias NULL. Ejemplo de controladores afectados: ptp_s390.c, ptp_vclock.c y ptp_mock.c. En su lugar, utilice una devoluci\u00f3n de llamada ficticia si el controlador no especific\u00f3 nada mejor."
    }
  ],
  "id": "CVE-2025-21814",
  "lastModified": "2025-11-03T21:19:12.310",
  "metrics": {
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2025-02-27T20:16:03.973",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
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          "value": "CWE-476"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}


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