Astra Linux – Vulnerability in Linux

In intelpmudrainpebsnhm in arch/x86/events/intel/ds.c of the Linux kernel, up to version 5.11.8 on some Haswell CPUs, user-space applications such as perf-fuzzer can cause a system crash due to improper handling of the PEBS status in a PEBS record, denoted as CID-d88d05a9e0b6...

EUVD-2021-15618

Malware in sbrugna...

kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c

A flaw was found in the Linux kernel. 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...