PT-2026-5527 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-03-25 · CVE-2026-23024

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 flow steering list when a kernel module is removed while active entries are present. The flow steering list manages entries created and deleted as flow steering rules are added and removed. Removing the module with active entries does not properly free the associated memory, resulting in a memory leak. This is addressed by iterating through remaining entries in the list and freeing the associated memory during module removal, and by adding a spinlock (flow steer list lock) to protect list access from multiple threads.

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-2026-23024

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 · 396

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23024.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23024 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20838-1 · Vendor Advisory
• https://git.kernel.org/stable/c/1aedff70a5e97628eaaf17b169774cb6a45a1dc5 · Patch
• https://osv.dev/vulnerability/CVE-2026-23024 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-23024 · Vendor Advisory
• https://git.kernel.org/stable/c/f9841bd28b600526ca4f6713b0ca49bf7bb98452 · Patch
• https://ubuntu.com/security/CVE-2026-23024 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20931-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23024 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:20416-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23024 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23024 · Security Note
• https://suse.com/security/cve/CVE-2026-23121 · Note
• https://bugzilla.suse.com/1258317 · Note