{"id":"CVE-2026-43021","summary":"Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails\n\nWhen hci_cmd_sync_queue_once() returns with error, the destroy callback\nwill not be called.\n\nFix leaking references / memory on these failures.","modified":"2026-08-12T03:51:10.147482509Z","published":"2026-05-01T14:15:24.374Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43021.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43021.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43021"},{"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":"a106e50be74b0896583f4d010a69f9806e4194f4"},{"fixed":"7fd74178d4b16dcf47179da634ea9d7c02e3608b"},{"fixed":"aca377208e7f7322bf4e107cdec6e7d7e8aa7a88"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43021.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43021.json"}}],"schema_version":"1.9.0"}