CVE-2026-53121

linux: In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amd_pstate_epp_cp...

CVE-2026-53121 is fixed in 32 products on 1 platform, first by ALAS2023-2026-1866, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
5th percentile

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).

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.18 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-azure · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23237-1 Aug 11, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.37.1.160000.2.19 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default-base · sles 16.0 6.12.0-160000.37.1.160000.2.19 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-docs · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-livepatch-6.18.33-63.124 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-syms · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel6.18 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-devel · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-headers · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-tools · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
linux · Debian 14 7.0.10-1 DEBIAN-CVE-2026-53121 Jun 25, 2026
perf6.18 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
python3-perf6.18 · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.33-63.124.amzn2023 ALAS2023-2026-1866 Jun 22, 2026

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