{"id":"DEBIAN-CVE-2022-49305","details":"In the Linux kernel, the following vulnerability has been resolved:  drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop()  There is a deadlock in ieee80211_beacons_stop(), which is shown below:     (Thread 1)              |      (Thread 2)                            | ieee80211_send_beacon() ieee80211_beacons_stop()   |  mod_timer()  spin_lock_irqsave() //(1) |  (wait a time)  ...                       | ieee80211_send_beacon_cb()  del_timer_sync()          |  spin_lock_irqsave() //(2)  (wait timer to stop)      |  ...  We hold ieee-\u003ebeacon_lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need ieee-\u003ebeacon_lock in position (2) of thread 2. As a result, ieee80211_beacons_stop() will block forever.  This patch extracts del_timer_sync() from the protection of spin_lock_irqsave(), which could let timer handler to obtain the needed lock.","modified":"2026-09-01T20:02:58.517027667Z","published":"2025-02-26T07:01:07.310Z","upstream":["CVE-2022-49305"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49305"}],"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-2022-49305.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-2022-49305.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-2022-49305.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"}]}