PT-2026-34434 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-04-23 · CVE-2026-31529

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 occurs in the construct region() function within the cxl/region component. This happens when the first sysfs update group() call fails, as the resource must be explicitly freed because it is too early for cxl region iomem release() to handle the release.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-31529

Affected Products

Linux Kernel

References · 11

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31529 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31529 · Vendor Advisory
• https://git.kernel.org/stable/c/f1b4741adf08b0063291ec1b0dfa9c3d55644933 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31529 · Security Note
• https://ubuntu.com/security/CVE-2026-31529 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31529 · Vendor Advisory
• https://git.kernel.org/stable/c/77b310bb7b5ff8c017524df83292e0242ba89791 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31529 · Security Note
• https://git.kernel.org/linus/77b310bb7b5ff8c017524df83292e0242ba89791 · Note
• https://twitter.com/VulmonFeeds/status/2047017305771524180 · Twitter Post
• https://twitter.com/CVEnew/status/2046979938037690528 · Twitter Post