arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. CREATE(Triage):(User=admin) CVE-2021-37576 (https://nvd.nist.gov/vuln/detail/CVE-2021-37576)