{"id":"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-\u003ehcon = NULL, also conn-\u003ehcon-\u003eiso_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().","modified":"2026-10-08T02:51:54.175157954Z","published":"2026-08-15T12:27:52.120Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74541.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fbdc4bc47268953c80853489f696e02d61f9a2c6"},{"fixed":"cc1d39946d62bc568551dfb81149724de1e91338"},{"fixed":"7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0"},{"fixed":"63c0f396a18b767eb28e895eb95bbdce6c172c59"},{"fixed":"69a4a7b162b3db6ac337e3094cdee38f24d42ff7"},{"fixed":"d57e506f6a1e3929611340fae87c1e4823f4d85c"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.5.12"},{"fixed":"6.6"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c03a10bd5b6ccb22921e04bcddc987410df7e7a9"}]}],"versions":["v6.5.13","v6.5.12"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74541.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.151"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74541.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}