ghsa-vfhm-mc4c-75c8
Vulnerability from github
Published
2025-09-22 21:30
Modified
2025-09-22 21:30
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details

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

uaccess: fix integer overflow on access_ok()

Three architectures check the end of a user access against the address limit without taking a possible overflow into account. Passing a negative length or another overflow in here returns success when it should not.

Use the most common correct implementation here, which optimizes for a constant 'size' argument, and turns the common case into a single comparison.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49289"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:05Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nuaccess: fix integer overflow on access_ok()\n\nThree architectures check the end of a user access against the\naddress limit without taking a possible overflow into account.\nPassing a negative length or another overflow in here returns\nsuccess when it should not.\n\nUse the most common correct implementation here, which optimizes\nfor a constant \u0027size\u0027 argument, and turns the common case into a\nsingle comparison.",
  "id": "GHSA-vfhm-mc4c-75c8",
  "modified": "2025-09-22T21:30:16Z",
  "published": "2025-09-22T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49289"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/222ca305c9fd39e5ed8104da25c09b2b79a516a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99801e2f457824955da4aadaa035913a6dede03a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1ad747fc1a0e06d1bf26b996ee8a56b5c8d02d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e65d28d4e9bf90a35ba79c06661a572a38391dec"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}


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