{"id":"CVE-2026-80721","revision":"686381a3b39544b1853bdbcff5bd5f31","records":[{"revision":"686381a3b39544b1853bdbcff5bd5f31","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80721","aliases":[],"title":"Bluetooth: ISO: ensure no dangling hcon references in iso_conn","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: ensure no dangling hcon references in iso_conn\n\nAfter iso_conn_del(), ISO sockets should not dereference the hcon any\nmore.  Currently, clearing iso_conn::hcon relies on iso_conn_del()\nreleasing the last reference to the iso_conn.\n\nSimplify this by explicitly clearing conn->hcon in iso_conn_del(), to\navoid more complex reasoning on races about who holds the last\nreference.","state":0,"publishedAt":"2026-08-28T06:53:17.278+00:00","modifiedAt":"2026-10-16T19:26:35.259+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/iso.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"dc26097bdb864a0d5955b9a25e43376ffc1af99b\",\n                            \"lessThan\": \"e941799c31f68e67ce0976efb38a79101f921b64\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"dc26097bdb864a0d5955b9a25e43376ffc1af99b\",\n                            \"lessThan\": \"cdce8af9291d8a1f8916c271de029bf558d9e8ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"dc26097bdb864a0d5955b9a25e43376ffc1af99b\",\n                            \"lessThan\": \"aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f53e7489273dc2bb307bf50f319b3762d45534f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a58d0f5dac322e16cc75334d000666512341bde5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.11.11\",\n                            \"lessThan\": \"6.12\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.2\",\n                            \"lessThan\": \"6.13\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/iso.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.44\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.8\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e941799c31f68e67ce0976efb38a79101f921b64","https://git.kernel.org/stable/c/cdce8af9291d8a1f8916c271de029bf558d9e8ec","https://git.kernel.org/stable/c/aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80721","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80721","identifiers":["CVE-2026-80721"]},"retained":false,"historicalAffected":[]}],"coverage":[]}