vulnerability

Red Hat: CVE-2022-39189: kernel: TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning (Multiple Advisories)

Name: Red Hat: CVE-2022-39189: kernel: TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning (Multiple Advisories)
Creator: Red Hat
Published: 2022-09-02T00:00:00.000Z
Keywords: CVE, Red Hat, 2022, 39189, kernel, redhat-upgrade-kernel, redhat-upgrade-kernel-rt, Severity 7

Try Surface Command

Back to search

Severity

CVSS

(AV:L/AC:M/Au:S/C:C/I:C/A:C)

Published

Sep 2, 2022

Added

May 15, 2023

Modified

Jun 17, 2026

Description

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

EUVD-EUVD-2022-41734
NVD-CVE-2022-39189
REDHAT-RHSA-2023:2148
REDHAT-RHSA-2023:2458
REDHAT-RHSA-2023:2736
REDHAT-RHSA-2023:2951
REDHAT-RHSA-2024:0724
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-41734

Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.

Get report