PT-2026-5515 · Linux+1 · Linux Kernel+1

Published 2025-01-01 · Updated 2026-05-22 · CVE-2025-71189

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/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 DMA engine functionality, specifically within the dw dmamux component. The issue involves a potential Open Firmware (OF) node leak during route allocation failures. The vulnerability occurs when a reference to a DMA master OF node is not properly released, leading to a memory leak.

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

Exploit

Allocation of Resources Without Limits

Memory Leak

Weakness Enumeration

CWE-770

CWE-401

Related Identifiers

BDU:2026-04468

CVE-2025-71189

ECHO-2EF8-B779-D669

OPENSUSE-SU-2026:20416-1

SUSE-SU-2026:0962-1

SUSE-SU-2026:1081-1

SUSE-SU-2026:20667-1

SUSE-SU-2026:20720-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21284-1

USN-8278-1

USN-8289-1

USN-8296-1

Affected Products

Linux Kernel

Ubuntu

References · 1777

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71189.json · Exploit
• https://ubuntu.com/security/CVE-2026-23083 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-71189 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23148 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23123 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40149 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23032 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20667-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71184 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23038 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23101 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23136 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23113 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23025 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23035 · Vendor Advisory