arch/powerpc/kvm/book3srtas.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 rtasargs.nargs, aka CID-f62f3c20647e.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37576.json"
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