{"schema_version":"1.9.0","id":"CVE-2022-50339","published":"2025-09-16T16:11:19.138Z","modified":"2026-08-12T03:51:29.600707015Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:3761-1"],"summary":"Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()\n\nsyzbot is again reporting attempt to cancel uninitialized work\nat mgmt_index_removed() [1], for setting of HCI_MGMT flag from\nmgmt_init_hdev() from hci_mgmt_cmd() from hci_sock_sendmsg() can\nrace with testing of HCI_MGMT flag from mgmt_index_removed() from\nhci_sock_bind() due to lack of serialization via hci_dev_lock().\n\nSince mgmt_init_hdev() is called with mgmt_chan_list_lock held, we can\nsafely split hci_dev_test_and_set_flag() into hci_dev_test_flag() and\nhci_dev_set_flag(). Thus, in order to close this race, set HCI_MGMT flag\nafter INIT_DELAYED_WORK() completed.\n\nThis is a local fix based on mgmt_chan_list_lock. Lack of serialization\nvia hci_dev_lock() might be causing different race conditions somewhere\nelse. But a global fix based on hci_dev_lock() should deserve a future\npatch.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3f2893d3c142986aa935821460cb3adb77044722"},{"fixed":"e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6"},{"fixed":"f74ca25d6d6629ffd4fd80a1a73037253b57d06b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50339.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.0.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50339.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f74ca25d6d6629ffd4fd80a1a73037253b57d06b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50339.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50339"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50339.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}