{"id":"DEBIAN-CVE-2022-49311","details":"In the Linux kernel, the following vulnerability has been resolved:  drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()  There is a deadlock in rtw_joinbss_event_prehandle(), which is shown below:     (Thread 1)                |      (Thread 2)                              | _set_timer() rtw_joinbss_event_prehandle()|  mod_timer()  spin_lock_bh() //(1)        |  (wait a time)  ...                         | _rtw_join_timeout_handler()  del_timer_sync()            |  spin_lock_bh() //(2)  (wait timer to stop)        |  ...  We hold pmlmepriv-\u003elock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need pmlmepriv-\u003elock in position (2) of thread 2. As a result, rtw_joinbss_event_prehandle() will block forever.  This patch extracts del_timer_sync() from the protection of spin_lock_bh(), which could let timer handler to obtain the needed lock. What`s more, we change spin_lock_bh() to spin_lock_irq() in _rtw_join_timeout_handler() in order to prevent deadlock.","modified":"2026-09-01T20:04:54.346261157Z","published":"2025-02-26T07:01:07.887Z","upstream":["CVE-2022-49311"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49311"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49311.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49311.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49311.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}