ghsa-wrfw-2xr6-c3p7
Vulnerability from github
Published
2025-09-05 18:31
Modified
2025-11-03 18:31
Details

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

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38702"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-04T16:15:38Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: fix potential buffer overflow in do_register_framebuffer()\n\nThe current implementation may lead to buffer overflow when:\n1.  Unregistration creates NULL gaps in registered_fb[]\n2.  All array slots become occupied despite num_registered_fb \u003c FB_MAX\n3.  The registration loop exceeds array bounds\n\nAdd boundary check to prevent registered_fb[FB_MAX] access.",
  "id": "GHSA-wrfw-2xr6-c3p7",
  "modified": "2025-11-03T18:31:38Z",
  "published": "2025-09-05T18:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38702"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbe740de32bb0fb7a5213731ff5f26ea6718fca3"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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