PT-2025-52954 · Linux · Linux Kernel

Published 2025-12-24 · Updated 2026-03-24 · CVE-2023-53997

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel related to thermal zone unregistration, potentially leading to a double-free condition. This issue arises from a copy of the thermal zone parameters structure being allocated and freed during unregistration, resulting in a memory leak of the original structure and a subsequent double-free of the copied structure. The problem was introduced with commit 3d439b1a2ad3 ("thermal/core: Alloc-copy-free the thermal zone parameters structure").

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

Exploit

Related Identifiers

CVE-2023-53997

RHSA-2024:9315

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Linux Kernel

References · 1455

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53997.json · Exploit
• https://osv.dev/vulnerability/BELL-CVE-2023-53997 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53997 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53997 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53997 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53997 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53997 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53997 · Vendor Advisory