CVE-2024-53228 riscv: kvm: Fix out-of-bounds array access

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: Fix out-of-bounds array access In kvmriscvvcpusbiinit the entry-extidx can contain an out-of-bound index. This is used as a special marker for the base extensions, that cannot be disabled. However, when traversing the...