In the Linux kernel, the following vulnerability has been resolved: x86/srso: Fix SBPB enablement for spec_rstack_overflow=off The Linux kernel CVE team has assigned CVE-2023-52575 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024030256-CVE-2023-52575-34bf@gregkh/T/#u