CVE-2026-53121
kernel: amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's amd-pstate driver. When the amd_pstate_epp_cpu_init() function fails to set the Energy Performance Preference (EPP), it does not properly free a previously allocated data object. This oversight leads to a memory leak, which could result in resource exhaustion over time and potentially cause a Denial of Service (DoS) condition on the affected system.
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