PT-2025-40705 · Linux+2 · Linux Kernel+2

Published 2023-11-07 · Updated 2025-11-28 · CVE-2023-53563

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5.0-rc2-amd-pstate-ut #5

Description The amd-pstate-ut driver in the Linux kernel does not properly release CPU policy after use in functions like amd pstate ut check perf() and amd pstate ut check freq(). This can lead to indefinite blocking of other entities attempting to access the policy, potentially resulting in a kernel panic when changing the amd pstate mode. The issue occurs because cpufreq cpu put() is not called where it is needed.

Recommendations Update to a newer version of the Linux kernel that contains a fix for this vulnerability.

Exploit

Fix

Related Identifiers

ALSA-2025_16880

CVE-2023-53563

RHSA-2023:6583

RHSA-2023_6583

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:21040-1

SUSE-SU-2025:21052-1

SUSE-SU-2025:21056-1

SUSE-SU-2025:21064-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4128-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4140-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4301-1

Affected Products

Linux Kernel

Red Hat

Suse

References · 1012

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53563.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53563 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-53563 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4128-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21056-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4132-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21064-1 · Vendor Advisory
• https://git.kernel.org/stable/c/84857640c67405eed258c461b3ef909002f1e201 · Patch
• https://cve.org/CVERecord?id=CVE-2023-53563 · Security Note
• https://git.kernel.org/stable/c/60dd283804479c4a52f995b713f448e2cd65b8c8 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:21040-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4301-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53563 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53563 · Vendor Advisory