fkie_cve-2025-38702
Vulnerability from fkie_nvd
Published
2025-09-04 16:15
Modified
2025-11-03 18:16
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbe740de32bb0fb7a5213731ff5f26ea6718fca3
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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": "CVE-2025-38702",
  "lastModified": "2025-11-03T18:16:36.330",
  "metrics": {},
  "published": "2025-09-04T16:15:38.990",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cbe740de32bb0fb7a5213731ff5f26ea6718fca3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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