Log in Start free

Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49305drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 89.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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->beacon_lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need ieee->beacon_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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.18.5-1DEBIAN-CVE-2022-49305
Debian:13linux5.18.5-1DEBIAN-CVE-2022-49305
Debian:14linux5.18.5-1DEBIAN-CVE-2022-49305
Ubuntu:22.04:LTSlinux5.15.0-48.54UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-aws5.15.0-1020.24UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure5.15.0-1020.25UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gcp5.15.0-1018.24UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gke5.15.0-1016.19UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1003.5UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-ibm5.15.0-1015.17UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1016.21UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-kvm5.15.0-1018.22UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-48.54UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oracle5.15.0-1018.23UBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-raspi5.15.0-1015.17UBUNTU-CVE-2022-49305
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49305
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49305

Affected products (as reported)

VendorProductVersions
Linux Linux 8fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before b465bb2ebf666116c1ac745cb80c65154dc0d27e8fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before 1fbe033c52480f7954c057510040fa6286c4ea258fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before 66f769762f65d957f688f3258755c6ec410bf7108fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before 042915c1bfedd684c1d98a841794ee203200571a8fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before ffc9cab7243f8151be37966301307bfd3cda2db38fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before b34cb54923a6e5ddefbaf358c85c922c6ab456e28fc8598e61f6f384f3eaf1d9b09500c12af47b37 – before 806c7b53414934ba2a39449b31fd1a038e500273
Linux Linux 2.6.33

Weakness: CWE-667 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References