ghsa-qhvh-q9v2-923q
Vulnerability from github
Published
2025-07-28 12:30
Modified
2025-07-28 12:30
Details

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

usb: gadget: configfs: Fix OOB read on empty string write

When writing an empty string to either 'qw_sign' or 'landingPage' sysfs attributes, the store functions attempt to access page[l - 1] before validating that the length 'l' is greater than zero.

This patch fixes the vulnerability by adding a check at the beginning of os_desc_qw_sign_store() and webusb_landingPage_store() to handle the zero-length input case gracefully by returning immediately.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38497"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-28T12:15:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Fix OOB read on empty string write\n\nWhen writing an empty string to either \u0027qw_sign\u0027 or \u0027landingPage\u0027\nsysfs attributes, the store functions attempt to access page[l - 1]\nbefore validating that the length \u0027l\u0027 is greater than zero.\n\nThis patch fixes the vulnerability by adding a check at the beginning\nof os_desc_qw_sign_store() and webusb_landingPage_store() to handle\nthe zero-length input case gracefully by returning immediately.",
  "id": "GHSA-qhvh-q9v2-923q",
  "modified": "2025-07-28T12:30:36Z",
  "published": "2025-07-28T12:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38497"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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