In the Linux kernel, the following vulnerability has been resolved: x86/srso: Fix SBPB enablement for spec_rstack_overflow=off If the user has requested no SRSO mitigation, other mitigations can use the lighter-weight SBPB instead of IBPB. CREATE(Triage):(User=admin) CVE-2023-52575 (https://nvd.nist.gov/vuln/detail/CVE-2023-52575)