x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.57 by commit 3653093b7bbfa8c8c61858bffdc7f1e41ad436e1, it was introduced in version v5.15.57 by commit fd17a4254965fc44044b3d7f5be186880ed7a021. For more details please see the references link.