CVE-2023-52595: 
Linux Kernel vulnerability analysis and mitigation

CVE-2023-52595 is a vulnerability in the Linux kernel's rt2x00 WiFi driver, discovered and disclosed on March 6, 2024. The vulnerability affects the beacon queue handling during hardware reset operations in various Linux kernel versions from 5.4 up to 6.7.4. When a hardware reset is triggered, all registers are reset, causing all queues to stop in the hardware interface, but mac80211 does not automatically stop the queue, leading to potential deadlock situations (NVD).

The vulnerability is classified as an improper locking issue (CWE-667) with a CVSS v3.1 base score of 5.5 (Medium). The technical issue occurs when a hardware reset is triggered in the rt2x00 WiFi driver, where all registers are reset and queues are forced to stop in the hardware interface. However, the mac80211 subsystem does not automatically stop the beacon queue, which can result in a deadlock condition preventing the queue from starting again (NVD).

The primary impact of this vulnerability is a denial of service condition affecting WiFi connectivity. Specifically, the issue prevents Apple devices from connecting to the access point after calling ieee80211restarthw(), due to the beacon queue becoming deadlocked and unable to restart (Kernel Patch).

The vulnerability has been patched in the Linux kernel through a fix that manually stops the beacon queue during hardware reset operations and clears the 'enable_beacon' flag. The patch has been backported to multiple kernel versions. Users should update their Linux kernel to a patched version (Kernel Patch).