A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.

Related CVEs

CVE-2021-4032

Key Information

GHSA ID

GHSA-89wc-v8x9-wrv5

Published

January 22, 2022 12:00 AM

Last Modified

January 29, 2022 12:01 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 31, 2025 6:36 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.