PT-2025-53223 · Linux · Linux Kernel

Published 2023-01-02 · Updated 2026-02-24 · CVE-2023-54146

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

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

Description A flaw exists in the Linux kernel related to the handling of the ELF header buffer during kexec. Specifically, a superfluous vfree() call within the crash load segments() function's error path could lead to a double-free condition. This issue arose after a previous fix addressed a memory leak of the ELF header buffer. Removing the unnecessary vfree() call resolves the double-free. The vulnerable code path involves freeing image->elf headers.

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

Exploit

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

BDU:2026-01207

CVE-2023-54146

RHSA-2024:9315

SUSE-SU-2026:0263-1

SUSE-SU-2026:0316-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 1112

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54146.json · Exploit
• https://osv.dev/vulnerability/BELL-CVE-2023-54146 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54146 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54146 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54146 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54146 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0316-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54146 · Security Note
• https://osv.dev/vulnerability/CVE-2023-54146 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54146 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01207 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory