{"id":"CVE-2025-38315","title":"Bluetooth: btintel: Check dsbr size from EFI variable","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Check dsbr size from EFI variable\n\nSince the size of struct btintel_dsbr is already known, we can just\nstart there instead of querying the EFI varia…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 9427f6081f37c795a8bd29d0ee72a4da3bd64af8","Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 7b8526bb489780ccc0caffc446ecabec83cfe568","Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 3aa1dc3c9060e335e82e9c182bf3d1db29220b1b","Linux 6.11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:54:20.513213Z"},"published":"2025-07-10","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:02:32.587Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38315","references":[{"url":"https://git.kernel.org/stable/c/9427f6081f37c795a8bd29d0ee72a4da3bd64af8"},{"url":"https://git.kernel.org/stable/c/7b8526bb489780ccc0caffc446ecabec83cfe568"},{"url":"https://git.kernel.org/stable/c/3aa1dc3c9060e335e82e9c182bf3d1db29220b1b"}],"tags":["cve.org"],"epss":0.00164,"epssPercentile":0.05617,"ingestedAt":"2026-11-05T22:38:31.952Z","slug":"CVE-2025-38315","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Check dsbr size from EFI variable\n\nSince the size of struct btintel_dsbr is already known, we can just\nstart there instead of querying the EFI variable size. If the final\nresult doesn't match what we expect also fail. This fixes a stack buffer\noverflow when the EFI variable is larger than struct btintel_dsbr.\n\n## Affected\n\n- `Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 9427f6081f37c795a8bd29d0ee72a4da3bd64af8`\n- `Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 7b8526bb489780ccc0caffc446ecabec83cfe568`\n- `Linux >= eb9e749c0182affafadfbe5ded4503c4b5a9b57c < 3aa1dc3c9060e335e82e9c182bf3d1db29220b1b`\n- `Linux 6.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}