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

Vulnerability from cvelistv5 – Published: 2025-12-08 00:46 – Updated: 2026-06-16 19:53
VLAI
Title
Bluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 19:53 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6856 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 99f30e12e588f9982a6eb1916e53510bff25b3b8 , < 96616530f524a0a76248cd44201de0a9e8526190 (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 5f7350ff2b179764a4f40ba4161b60b8aaef857b (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 4b7d4aa5399b5a64caee639275615c63c008540d (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 3a50d59b3781bc3a4e96533612509546a4c309a7 (git)
Affected: db08722fc7d46168fe31d9b8a7b29229dd959f9f , < 8d59fba49362c65332395789fd82771f1028d87e (git)
Affected: 6.1.83 , < 6.1.159 (semver)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
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                  "version": "6.1.159",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.117",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.58",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.17.*",
                  "status": "unaffected",
                  "version": "6.17.8",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.18",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.159",
                      "versionStartIncluding": "6.1.83",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.117",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.58",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.17.8",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "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."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T16:01:58.817Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/96616530f524a0a76248cd44201de0a9e8526190"
            },
            {
              "url": "https://git.kernel.org/stable/c/5f7350ff2b179764a4f40ba4161b60b8aaef857b"
            },
            {
              "url": "https://git.kernel.org/stable/c/4b7d4aa5399b5a64caee639275615c63c008540d"
            },
            {
              "url": "https://git.kernel.org/stable/c/3a50d59b3781bc3a4e96533612509546a4c309a7"
            },
            {
              "url": "https://git.kernel.org/stable/c/8d59fba49362c65332395789fd82771f1028d87e"
            }
          ],
          "title": "Bluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-40294",
        "datePublished": "2025-12-08T00:46:17.899Z",
        "dateReserved": "2025-04-16T07:20:57.185Z",
        "dateUpdated": "2026-06-16T19:53:41.561Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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