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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
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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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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.159\", \"versionStartIncluding\": \"6.1.83\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.117\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.58\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": 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      "cveMetadata": "{\"cveId\": \"CVE-2025-40294\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T19:53:41.561Z\", \"dateReserved\": \"2025-04-16T07:20:57.185Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-12-08T00:46:17.899Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.