{"id":"CVE-2026-74528","summary":"Bluetooth: hci_sync: hold conn in hci_past_sync() callback","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hold conn in hci_past_sync() callback\n\nAvoids giving freed pointers to hci_conn_valid(), which kmalloc may have\nreused.\n\nHold refcount to avoid that.","modified":"2026-08-18T03:56:51.427018592Z","published":"2026-08-15T12:27:44.181Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74528.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/abf9753edf3f88282c44a605f3945d8d4f8dd86c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e6792adef614b389141b142e30ee549e4a47dd7d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74528.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74528"},{"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":"d3413703d5f8b7d1e6f514f9440ed5da1bc30796"},{"fixed":"e6792adef614b389141b142e30ee549e4a47dd7d"},{"fixed":"abf9753edf3f88282c44a605f3945d8d4f8dd86c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74528.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74528.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}