Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5 dmaengine allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5. This impacts an unknown function of the component dmaengine. Such manipulation leads to allocation of resources. This vulnerability is documented as CVE-2025-71189. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5 and classified as critical. Affected by this issue is an unknown function of the component dmaengine. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw: dmamux: fix OF node leak on route allocation failure Make sure to drop the reference taken to the DMA master OF node also on late route allocation failures.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2025-71189 since 01/31/2026. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 297476 (Linux Distros Unpatched Vulnerability : CVE-2025-71189), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.122, 6.12.67, 6.18.7 or 6.19-rc6 eliminates this vulnerability. Applying the patch db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1/8f7a391211381ed2f6802032c78c7820d166bc49/eabe40f8a53c29f531e92778ea243e379f4f7978/ec25e60f9f95464aa11411db31d0906b3fb7b9f2 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (297476), EUVD (EUVD-2025-206586) and CERT Bund (WID-SEC-2026-0280). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Open Source Linux Kernel

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297476
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71189

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.122/6.12.67/6.18.7/6.19-rc6
Patch: db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1/8f7a391211381ed2f6802032c78c7820d166bc49/eabe40f8a53c29f531e92778ea243e379f4f7978/ec25e60f9f95464aa11411db31d0906b3fb7b9f2

Timelineinfo

01/31/2026 Advisory disclosed
01/31/2026 +0 days CVE reserved
01/31/2026 +0 days VulDB entry created
03/26/2026 +54 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71189 (🔒)
GCVE (CVE): GCVE-0-2025-71189
GCVE (VulDB): GCVE-100-343616
EUVD: 🔒
CERT Bund: WID-SEC-2026-0280 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/31/2026 15:24
Updated: 03/26/2026 02:11
Changes: 01/31/2026 15:24 (58), 02/01/2026 01:18 (1), 02/01/2026 07:36 (2), 02/02/2026 16:08 (7), 03/26/2026 02:11 (11)
Complete: 🔍
Cache ID: 216::103

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