PT-2025-40686 · Linux+2 · Linux Kernel+2

Published 2023-02-09 · Updated 2026-05-26 · CVE-2023-53544

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue involves a use-after-free condition within the cpufreq subsystem, specifically related to the davinci platform. The remove function first frees clock resources (clks) and then calls cpufreq unregister driver(). If a cpufreq callback is invoked immediately before cpufreq unregister driver() is executed, the already-freed clock resources might be accessed, leading to a potential system instability or crash. The vulnerability affects the handling of clock resources during driver unregistration.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-416

Related Identifiers

ALSA-2025_16880

BDU:2026-04411

CVE-2023-53544

RHSA-2024:2394

RHSA-2024_2394

Affected Products

Debian

Linux Kernel

Red Hat

References · 26

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53544.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-53544 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53544 · Vendor Advisory
• https://git.kernel.org/stable/c/ab05ae4ab831f64bbc427592c86f599ed9c4324f · Patch
• https://git.kernel.org/stable/c/66b3bbe6fbd8dd410868e5b53ac3944a934b9310 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53544 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53544 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53544 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53544 · Security Note
• https://ubuntu.com/security/CVE-2023-53544 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04411 · Security Note
• https://git.kernel.org/stable/c/a5f024d0e6f91e05c816ad4ee8837173369dd5cb · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2023-53544 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53544 · Vendor Advisory
• https://git.kernel.org/stable/c/5d8f384a9b4fc50f6a18405f1c08e5a87a77b5b3 · Patch