{"id":"CVE-2022-49555","summary":"Bluetooth: hci_qca: Use del_timer_sync() before freeing","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: Use del_timer_sync() before freeing\n\nWhile looking at a crash report on a timer list being corrupted, which\nusually happens when a timer is freed while still active. This is\ncommonly triggered by code calling del_timer() instead of\ndel_timer_sync() just before freeing.\n\nOne possible culprit is the hci_qca driver, which does exactly that.\n\nEric mentioned that wake_retrans_timer could be rearmed via the work\nqueue, so also move the destruction of the work queue before\ndel_timer_sync().","modified":"2026-04-11T12:44:14.136857Z","published":"2025-02-26T02:14:03.150Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1194-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1263-1","SUSE-SU-2025:1293-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49555.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2717654ae022e6ea959a4b7b762702fe1a4690c2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/37d17f63d085d601011964ade7371aeebeb6ed4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4989bb03342941f2b730b37dfa38bce27b543661"},{"type":"WEB","url":"https://git.kernel.org/stable/c/72ef98445aca568a81c2da050532500a8345ad3a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/db03727b4bbbbb36e6ef4cb655c670eefb6448e9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49555.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49555"},{"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":"0ff252c1976da5d80db1377eb39b551931e61826"},{"fixed":"4989bb03342941f2b730b37dfa38bce27b543661"},{"fixed":"db03727b4bbbbb36e6ef4cb655c670eefb6448e9"},{"fixed":"37d17f63d085d601011964ade7371aeebeb6ed4b"},{"fixed":"2717654ae022e6ea959a4b7b762702fe1a4690c2"},{"fixed":"72ef98445aca568a81c2da050532500a8345ad3a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49555.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.3.0"},{"fixed":"5.10.120"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"5.17.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.18.0"},{"fixed":"5.18.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49555.json"}}],"schema_version":"1.7.5"}