ghsa-xxp9-gm8j-w4c9
Vulnerability from github
Published
2025-02-27 21:32
Modified
2025-03-13 15:32
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21814"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T20:16:03Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-xxp9-gm8j-w4c9",
  "modified": "2025-03-13T15:32:53Z",
  "published": "2025-02-27T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21814"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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