fkie_cve-2025-38395
Vulnerability from fkie_nvd
Published
2025-07-25 13:15
Modified
2025-07-25 15:29
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/24418bc77a66cb5be9f5a837431ba3674ed8b52f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3830ab97cda9599872625cc0dc7b00160193634f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/56738cbac3bbb1d39a71a07f57484dec1db8b239
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fe71972869faed1f8f9b3beb9040f9c1b300c79
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a1e12fac214d4f49fcb186dbdf9c5592e7fa0a7a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a3cd5ae7befbac849e0e0529c94ca04e8093cfd2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9764fd88bc744592b0604ccb6b6fc1a5f76b4e3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4d19e5d71b217940e33f2ef6c6962b7b68c5606
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: regulator: gpio: Se corrige el acceso fuera de los l\u00edmites a drvdata::gpiods. drvdata::gpiods debe contener una matriz de punteros \u0027gpio_desc\u0027. Sin embargo, la memoria solo est\u00e1 asignada a un puntero. Esto provocar\u00e1 un acceso fuera de los l\u00edmites m\u00e1s adelante en el c\u00f3digo si \u0027config::ngpios\u0027 es \u0026gt; 1. Por lo tanto, corrija el c\u00f3digo para asignar suficiente memoria para contener \u0027config::ngpios\u0027 de descriptores GPIO. Adem\u00e1s, mueva la comprobaci\u00f3n de fallos de asignaci\u00f3n de memoria a un valor inferior a la asignaci\u00f3n para que sea m\u00e1s legible."
    }
  ],
  "id": "CVE-2025-38395",
  "lastModified": "2025-07-25T15:29:19.837",
  "metrics": {},
  "published": "2025-07-25T13:15:28.950",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/24418bc77a66cb5be9f5a837431ba3674ed8b52f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3830ab97cda9599872625cc0dc7b00160193634f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/56738cbac3bbb1d39a71a07f57484dec1db8b239"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9fe71972869faed1f8f9b3beb9040f9c1b300c79"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a1e12fac214d4f49fcb186dbdf9c5592e7fa0a7a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a3cd5ae7befbac849e0e0529c94ca04e8093cfd2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9764fd88bc744592b0604ccb6b6fc1a5f76b4e3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4d19e5d71b217940e33f2ef6c6962b7b68c5606"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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