Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.86

Description The issue is related to the mmc add host() function in the rtsx usb sdmmc driver. It is noted that the actual impact and attack plausibility have not yet been proven. The problem was introduced in version v3.16 and is fixed in Linux Kernel version v5.15.86.

Recommendations For Linux Kernel versions prior to v5.15.86, update to version v5.15.86 or later to resolve the issue. As a temporary workaround, consider restricting access to the mmc add host() function until a patch is available.