CVE-2026-53121
In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init() On failure to set the epp, the function amd_pstate_epp_cpu_init() returns with an error code without freeing the cpudata object that was allocated at the beginning of the function. Ensure that the cpudata object is freed before returning from the function. This memory leak was discovered by Claude Opus 4.6 with the aid of Chris Mason's AI review-prompts (https://github.com/masoncl/review-prompts/tree/main/kernel).
Affected versions
Linux kernel versions
6.14
and later are affected. Fixed in
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
3 totalFrequently asked questions
-
What is CVE-2026-53121?
CVE-2026-53121 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.14 onward and has been patched in 6.18.33, 7.0.10 and 7.1. CVE-2026-53121 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-53121?
Yes — CVE-2026-53121 has been patched. Fixed versions include 6.18.33, 7.0.10 and 7.1. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-53121 actively exploited?
No — CVE-2026-53121 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.