Linux · Linux Kernel · CVE-2022-49523
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
A crash is observed in the Linux kernel when ath11k modules are removed using rmmod with spectral scan enabled. The crash occurs due to a NULL pointer dereference. To avoid this crash, a spectral scan disable WMI command is sent to the firmware before cleaning the spectral dbring in the spectral deinit API.
**Recommendations**
As a temporary workaround, consider disabling the spectral scan feature until a patch is available.
To resolve the issue, send a spectral scan disable WMI command to the firmware before cleaning the spectral dbring in the spectral deinit API.