CVE-2020-11669

NameCVE-2020-11669
DescriptionAn issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.81-1fixed
stretch4.9.210-1fixed
stretch (security)4.9.189-3+deb9u2fixed
buster4.19.118-2fixed
buster (security)4.19.98-1+deb10u1vulnerable
bullseye, sid5.6.14-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)5.2.6-1
linuxsourcebuster4.19.118-1
linuxsourcejessie(not affected)
linuxsourcestretch(not affected)

Notes

[stretch] - linux <not-affected> (Vulnerability introduced later with support for KVM guests on POWER9)
[jessie] - linux <not-affected> (Vulnerability introduced later with support for KVM guests on POWER9)
https://git.kernel.org/linus/53a712bae5dd919521a58d7bad773b949358add0
https://www.openwall.com/lists/oss-security/2020/04/15/1

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