CVE-2025-40294 (GCVE-0-2025-40294)

Vulnerability from cvelistv5 – Published: 2025-12-08 00:46 – Updated: 2025-12-08 00:46
VLAI?
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 99f30e12e588f9982a6eb1916e53510bff25b3b8 , < 96616530f524a0a76248cd44201de0a9e8526190 (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 5f7350ff2b179764a4f40ba4161b60b8aaef857b (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 4b7d4aa5399b5a64caee639275615c63c008540d (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 3a50d59b3781bc3a4e96533612509546a4c309a7 (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 8d59fba49362c65332395789fd82771f1028d87e (git)
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    Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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          "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."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-08T00:46:17.899Z",
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        {
          "url": "https://git.kernel.org/stable/c/8d59fba49362c65332395789fd82771f1028d87e"
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      "title": "Bluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()",
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    "cveId": "CVE-2025-40294",
    "datePublished": "2025-12-08T00:46:17.899Z",
    "dateReserved": "2025-04-16T07:20:57.185Z",
    "dateUpdated": "2025-12-08T00:46:17.899Z",
    "state": "PUBLISHED"
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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