ghsa-8v5w-hx5q-6wch
Vulnerability from github
Published
2025-02-27 03:34
Modified
2025-10-01 21:31
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:

gpiolib: Fix crash on error in gpiochip_get_ngpios()

The gpiochip_get_ngpios() uses chip_() macros to print messages. However these macros rely on gpiodev to be initialised and set, which is not the case when called via bgpio_init(). In such a case the printing messages will crash on NULL pointer dereference. Replace chip_() macros by the respective dev_*() ones to avoid such crash.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21783"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: Fix crash on error in gpiochip_get_ngpios()\n\nThe gpiochip_get_ngpios() uses chip_*() macros to print messages.\nHowever these macros rely on gpiodev to be initialised and set,\nwhich is not the case when called via bgpio_init(). In such a case\nthe printing messages will crash on NULL pointer dereference.\nReplace chip_*() macros by the respective dev_*() ones to avoid\nsuch crash.",
  "id": "GHSA-8v5w-hx5q-6wch",
  "modified": "2025-10-01T21:31:12Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21783"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68"
    }
  ],
  "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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