PT-2026-8132 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-04-20 · CVE-2026-23137

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 (affected versions not specified)

Description A memory leak exists in the unittest data add() function within the Linux kernel. If of resolve phandles() fails, the allocated unittest data is not freed, resulting in a memory leak. The fix involves using a scope-based cleanup helper free(kfree) for automatic resource cleanup in error paths and retain and null ptr() to transfer memory ownership in the success path, preventing double freeing.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-23137

ECHO-E184-8D23-CC31

OESA-2026-1760

OPENSUSE-SU-2026:20416-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21284-1

Affected Products

Linux Kernel

References · 524

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23137.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-40237 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71134 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23137 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-68818 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23069 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23103 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-68265 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-68378 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23060 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23137 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-40215 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71072 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23137 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-68214 · Security Note