CVE-2023-54024
kernel: Linux kernel KVM: Memory leak via coalesced MMIO unregistration failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · July 22, 2026
Description
A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) component. This vulnerability occurs when the unregistration of a coalesced Memory-Mapped I/O (MMIO) device fails, leading to a memory leak. A local attacker could exploit this flaw to consume system memory, potentially causing a Denial of Service (DoS) condition.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime