ghsa-3fxq-g92j-92g5
Vulnerability from github
Published
2025-07-25 15:30
Modified
2025-07-25 15:30
Details

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

regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods

drvdata::gpiods is supposed to hold an array of 'gpio_desc' pointers. But the memory is allocated for only one pointer. This will lead to out-of-bounds access later in the code if 'config::ngpios' is > 1. So fix the code to allocate enough memory to hold 'config::ngpios' of GPIO descriptors.

While at it, also move the check for memory allocation failure to be below the allocation to make it more readable.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38395"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T13:15:28Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: gpio: Fix the out-of-bounds access to drvdata::gpiods\n\ndrvdata::gpiods is supposed to hold an array of \u0027gpio_desc\u0027 pointers. But\nthe memory is allocated for only one pointer. This will lead to\nout-of-bounds access later in the code if \u0027config::ngpios\u0027 is \u003e 1. So\nfix the code to allocate enough memory to hold \u0027config::ngpios\u0027 of GPIO\ndescriptors.\n\nWhile at it, also move the check for memory allocation failure to be below\nthe allocation to make it more readable.",
  "id": "GHSA-3fxq-g92j-92g5",
  "modified": "2025-07-25T15:30:52Z",
  "published": "2025-07-25T15:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38395"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24418bc77a66cb5be9f5a837431ba3674ed8b52f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3830ab97cda9599872625cc0dc7b00160193634f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56738cbac3bbb1d39a71a07f57484dec1db8b239"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fe71972869faed1f8f9b3beb9040f9c1b300c79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1e12fac214d4f49fcb186dbdf9c5592e7fa0a7a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3cd5ae7befbac849e0e0529c94ca04e8093cfd2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9764fd88bc744592b0604ccb6b6fc1a5f76b4e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4d19e5d71b217940e33f2ef6c6962b7b68c5606"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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