An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idlebook3s.S does not have save/restore functionality for PNVPOWERSAVEAMR, PNVPOWERSAVEUAMOR, and PNVPOWERSAVE_AMOR, aka CID-53a712bae5dd.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-11669.json"