{"id":"CVE-2026-74541","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74541","summary":"Bluetooth: ISO: clear iso_data always when detaching conn from hcon","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: clear iso_data always when detaching conn from hcon\n\nWhen setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is\nnecessary, otherwise later iso_conn_free() will UAF.\n\nFix clearing of iso_data in iso_sock_disconn()\n\nFixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on\niso_sock_release() followed by hci_abort_conn_sync().","published":"2026-08-15T12:27:52.120Z","modified":"2026-08-18T03:56:32.496178195Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.6.151"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59"},{"type":"WEB","url":"https://git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74541.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74541"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:32.496178195Z"}}