CVE-2021-28971

NameCVE-2021-28971
DescriptionIn intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2689-1, DLA-2690-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.260-1fixed
bullseye5.10.140-1fixed
bullseye (security)5.10.149-2fixed
bookworm6.0.8-1fixed
sid6.0.10-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.272-1DLA-2689-1
linuxsourcebuster4.19.194-1
linuxsource(unstable)5.10.26-1
linux-4.19sourcestretch4.19.194-1~deb9u1DLA-2690-1

Notes

https://git.kernel.org/linus/d88d05a9e0b6d9356e97129d4ff9942d765f46ea

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