{"id":"CVE-2026-68479","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-68479","summary":"Bluetooth: btrtl: validate firmware patch bounds","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btrtl: validate firmware patch bounds\n\nrtlbt_parse_firmware() copies patch_length - 4 bytes before appending the\nfirmware version. A malformed firmware patch shorter than the version field\ncan make this subtraction underflow and turn the copy into an oversized\nread and write during Bluetooth setup.\n\nThe existing patch_offset + patch_length check can also wrap on 32-bit\narchitectures. Validate the patch length and range without arithmetic\noverflow before allocating or copying the patch.","published":"2026-08-15T05:51:34.106Z","modified":"2026-08-18T03:56:17.380137076Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.261"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/39e01b4addfbbe177567d6ed1dfb81f9cccb19e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/609c5b04a28dc1b0f3af6a7bc93055135b2d2059"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6744ab60dfac55d1df5733960aad5be300984301"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68c5a2a19987c035eb129e627e579adafb04f637"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83534891c058ed71e251135072640911670869aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a4cb830e0b55ac76c849fd7840afb251f4c028fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bda3c598ade6ea03884074b91e31608326684921"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f1ca750c0510bdbb504bf084d2f196ef2af92ea6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68479.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68479"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:17.380137076Z"}}