{"id":"CVE-2026-98819","title":"Bluetooth: btintel: validate DDC record lengths","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: validate DDC record lengths\n\nParse DDC record lengths in unsigned storage so 0xFF does not wrap.\nReject records smaller than the mandatory three-byt…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < 069031f569f1681f17e863f48c221a6091b47850","Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < b0fce76873a5e6a6820354409b26693ac5f8b251","Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < f3617369fbb30a4d2e54841ab8e92ca4fa211e56","Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < c9c15d4d8956df8c564f7c210e4dc5b9b820d97a","Linux 4.4"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:49:11.226Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98819","references":[{"url":"https://git.kernel.org/stable/c/069031f569f1681f17e863f48c221a6091b47850"},{"url":"https://git.kernel.org/stable/c/b0fce76873a5e6a6820354409b26693ac5f8b251"},{"url":"https://git.kernel.org/stable/c/f3617369fbb30a4d2e54841ab8e92ca4fa211e56"},{"url":"https://git.kernel.org/stable/c/c9c15d4d8956df8c564f7c210e4dc5b9b820d97a"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T16:47:32.474Z","slug":"CVE-2026-98819","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: validate DDC record lengths\n\nParse DDC record lengths in unsigned storage so 0xFF does not wrap.\nReject records smaller than the mandatory three-byte header, records\nexceeding U8_MAX, and records exceeding remaining firmware bytes before\nissuing Intel_Write_DDC.\n\nThis issue was reported by Claude Mythos.\n\n## Affected\n\n- `Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < 069031f569f1681f17e863f48c221a6091b47850`\n- `Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < b0fce76873a5e6a6820354409b26693ac5f8b251`\n- `Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < f3617369fbb30a4d2e54841ab8e92ca4fa211e56`\n- `Linux >= 145f2368c5fd7962e37315ccc092670743019d08 < c9c15d4d8956df8c564f7c210e4dc5b9b820d97a`\n- `Linux 4.4`\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":[]}