CVE-2023-52798 Information

Description

In the Linux kernel the following vulnerability has been resolved:

wifi: ath11k: fix dfs radar event locking

The ath11k active pdevs are protected by RCU but the DFS radar event handling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.

Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues.

Compile tested only.

Reference

https://git.kernel.org/stable/c/f882f51905517575c9f793a3dff567af90ef9a10 https://git.kernel.org/stable/c/426e718ce9ba60013364a54233feee309356cb82 https://git.kernel.org/stable/c/ca420ac4f9451f22347bae44b18ab47ba2c267ec https://git.kernel.org/stable/c/1fd878e1750190a612b5de2af357cca422ec0822 https://git.kernel.org/stable/c/21ebb0aba580d347e12f01ce5f6e75044427b3d5 https://git.kernel.org/stable/c/3b6c14833165f689cc5928574ebafe52bbce5f1e