CVE-2025-38702 (GCVE-0-2025-38702)
Vulnerability from cvelistv5
Published
2025-09-04 15:32
Modified
2025-09-04 15:32
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
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/core/fbmem.c"
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          "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."
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      "providerMetadata": {
        "dateUpdated": "2025-09-04T15:32:53.990Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "fbdev: fix potential buffer overflow in do_register_framebuffer()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38702",
    "datePublished": "2025-09-04T15:32:53.990Z",
    "dateReserved": "2025-04-16T04:51:24.032Z",
    "dateUpdated": "2025-09-04T15:32:53.990Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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  }
}


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