CVE-2025-40294

Advisory lineage Upstream: 0 Downstream: 31
Deferred
Published: 08 Dec 2025, 00:46
Last modified:23 May 2026, 16:01

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.04% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Dec 2025, 00:46
Published
Vulnerability first disclosed
23 May 2026, 16:01
Last Modified
Vulnerability information updated

Description

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.

EPSS Trends

Current EPSS score: 0.04%• Percentile: 13%

Affected Systems

  • linux•linux

    ≥ 99f30e12e588f9982a6eb1916e53510bff25b3b8, < 96616530f524a0a76248cd44201de0a9e8526190 | ≥ db08722fc7d46168fe31d9b8a7b29229dd959f9f, < 5f7350ff2b179764a4f40ba4161b60b8aaef857b | ≥ db08722fc7d46168fe31d9b8a7b29229dd959f9f, < 4b7d4aa5399b5a64caee639275615c63c008540d | ≥ db08722fc7d46168fe31d9b8a7b29229dd959f9f, < 3a50d59b3781bc3a4e96533612509546a4c309a7 | ≥ db08722fc7d46168fe31d9b8a7b29229dd959f9f, < 8d59fba49362c65332395789fd82771f1028d87e | ≥ 6.1.83, < 6.1.159 | 6.6

References (5)