FKIE_CVE-2025-40294

Vulnerability from fkie_nvd - Published: 2025-12-08 01:16 - Updated: 2025-12-08 18:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern() In the parse_adv_monitor_pattern() function, the value of the 'length' variable is currently limited to HCI_MAX_EXT_AD_LENGTH(251). The size of the 'value' array in the mgmt_adv_pattern structure is 31. If the value of 'pattern[i].length' is set in the user space and exceeds 31, the 'patterns[i].value' array can be accessed out of bound when copied. Increasing the size of the 'value' array in the 'mgmt_adv_pattern' structure will break the userspace. Considering this, and to avoid OOB access revert the limits for 'offset' and 'length' back to the value of HCI_MAX_AD_LENGTH. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a50d59b3781bc3a4e96533612509546a4c309a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b7d4aa5399b5a64caee639275615c63c008540d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f7350ff2b179764a4f40ba4161b60b8aaef857b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d59fba49362c65332395789fd82771f1028d87e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96616530f524a0a76248cd44201de0a9e8526190
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()\n\nIn the parse_adv_monitor_pattern() function, the value of\nthe \u0027length\u0027 variable is currently limited to HCI_MAX_EXT_AD_LENGTH(251).\nThe size of the \u0027value\u0027 array in the mgmt_adv_pattern structure is 31.\nIf the value of \u0027pattern[i].length\u0027 is set in the user space\nand exceeds 31, the \u0027patterns[i].value\u0027 array can be accessed\nout of bound when copied.\n\nIncreasing the size of the \u0027value\u0027 array in\nthe \u0027mgmt_adv_pattern\u0027 structure will break the userspace.\nConsidering this, and to avoid OOB access revert the limits for \u0027offset\u0027\nand \u0027length\u0027 back to the value of HCI_MAX_AD_LENGTH.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."
    }
  ],
  "id": "CVE-2025-40294",
  "lastModified": "2025-12-08T18:26:49.133",
  "metrics": {},
  "published": "2025-12-08T01:16:01.423",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3a50d59b3781bc3a4e96533612509546a4c309a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4b7d4aa5399b5a64caee639275615c63c008540d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5f7350ff2b179764a4f40ba4161b60b8aaef857b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8d59fba49362c65332395789fd82771f1028d87e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/96616530f524a0a76248cd44201de0a9e8526190"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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