GHSA-6V4F-R38F-J6J4

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: bcm2835: Don't remove an unregistered GPIO chip

If the devm_pinctrl_register() function fails, bcm2835_pinctrl_probe() calls gpiochip_remove() before gpiochip_add_data() has registered the GPIO chip.

This means that upon failure the gpio_chip.gpiodev is NULL resulting in a null pointer dereference inside the gpiochip_remove() function.

Remove the unnecessary function call to gpiochip_remove(). No GPIO cleanup is required because the GPIO chip has not yet been registered. Without this change there is potential for a kernel panic upon registration failure

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93274"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T16:17:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: bcm2835: Don\u0027t remove an unregistered GPIO chip\n\nIf the devm_pinctrl_register() function fails,\nbcm2835_pinctrl_probe() calls gpiochip_remove()\nbefore gpiochip_add_data() has registered the GPIO chip.\n\nThis means that upon failure the gpio_chip.gpiodev\n is NULL resulting in a null pointer dereference\ninside the gpiochip_remove() function.\n\nRemove the unnecessary function call to gpiochip_remove().\nNo GPIO cleanup is required because the GPIO chip\nhas not yet been registered. Without this change there\nis potential for a kernel panic upon registration failure",
  "id": "GHSA-6v4f-r38f-j6j4",
  "modified": "2026-09-24T18:31:25Z",
  "published": "2026-09-24T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93274"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32711f77db0641e57fd96fdc013bf1286b9f2514"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b978fd0a3092b25561ac26bc1a87149fa981ddc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68ea6dd23b732081826c36033835468383487864"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/727f043d699ab0d5d87122c2177f2b45fbe58d35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8535f5c77cc61352d02a0c038a280127a8b8208"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d428863ca8baa4e9eaf781266ac219b017dcf277"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd6b1919e41d1260259c4505777be565fb3a7efd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f494cfc254cd509d7cbc44b843e0a6602a520a33"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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