Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.133

Description The issue is related to the x86/speculation feature, specifically the filling of the Return Stack Buffer (RSB) on vmexit for IBRS. The actual impact and attack plausibility have not yet been proven.

Recommendations For Linux Kernel versions prior to v5.10.133, update to version v5.10.133 or later to resolve the issue.