imPC@ndo IT

Tracker / CVE-2021-28971

CVE-2021-28971

Medium 5.5

In 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.

Affected products and versions

debian debian_linux
fedoraproject fedora
linux linux_kernel · … → 5.11.8
netapp aff_500f_firmware
netapp aff_a250_firmware
netapp cloud_backup
netapp solidfire_baseboard_management_controller_firmware

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References