ghsa-cxw8-j5f9-53mh
Vulnerability from github
Published
2024-08-26 12:31
Modified
2024-11-08 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details

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

gpio: prevent potential speculation leaks in gpio_device_get_desc()

Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc().

This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks.

This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-44931"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-26T11:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: prevent potential speculation leaks in gpio_device_get_desc()\n\nUserspace may trigger a speculative read of an address outside the gpio\ndescriptor array.\nUsers can do that by calling gpio_ioctl() with an offset out of range.\nOffset is copied from user and then used as an array index to get\nthe gpio descriptor without sanitization in gpio_device_get_desc().\n\nThis change ensures that the offset is sanitized by using\narray_index_nospec() to mitigate any possibility of speculative\ninformation leaks.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc.",
  "id": "GHSA-cxw8-j5f9-53mh",
  "modified": "2024-11-08T18:30:43Z",
  "published": "2024-08-26T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44931"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18504710442671b02d00e6db9804a0ad26c5a479"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b955f786a4bcde8c0ccb2b7d519def2acb6f3cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/672c19165fc96dfad531a5458e0b3cdab414aae4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ae2d8e75b741dbcb0da374753f972410e83b5f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c65ab97efcd438cb4e9f299400f2ea55251f3a67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d776c0486b03a5c4afca65b8ff44573592bf93bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d795848ecce24a75dfd46481aee066ae6fe39775"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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