Description
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.
References (3)
Scores
CVSS v3
4.4
EPSS
0.0005
EPSS Percentile
14.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-459
Status
published
Products (2)
linux/linux_kernel
5.15 (7 CPE variants)
linux/linux_kernel
< 5.14
Published
Jan 21, 2022
Tracked Since
Feb 18, 2026