{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-21783",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-21783"
  ],
  "published": "2025-02-27T02:18:18Z",
  "summary": "gpiolib: Fix crash on error in gpiochip_get_ngpios()",
  "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.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-21783"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f"
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      "url": "https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68"
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      "url": "https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5"
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    "upstream_modified": "2026-05-12T04:54:46Z"
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}