Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5 dmaengine memory leak

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

Summaryinfo

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. This affects an unknown part of the component dmaengine. The manipulation results in memory leak. This vulnerability is known as CVE-2025-71190. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5. Affected is an unknown code of the component dmaengine. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: bcm-sba-raid: fix device leak on probe Make sure to drop the reference taken when looking up the mailbox device during probe on probe failures and on driver unbind.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-71190 since 01/31/2026. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 297477 (Linux Distros Unpatched Vulnerability : CVE-2025-71190), 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 c80ca7bdff158401440741bdcf9175bd8608580b/db6f1d6d31711e73e6a214c73e6a8fb4cda0483d/2ed1a9de1f2d727ccae5bc9cc7c63ee3519c0c8b/7c3a46ebf15a9796b763a54272407fdbf945bed8 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 (297477), EUVD (EUVD-2025-206585) and CERT Bund (WID-SEC-2026-0280). Once again VulDB remains the best source for vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

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: Memory leak
CWE: CWE-401 / 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: 297477
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71190

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: c80ca7bdff158401440741bdcf9175bd8608580b/db6f1d6d31711e73e6a214c73e6a8fb4cda0483d/2ed1a9de1f2d727ccae5bc9cc7c63ee3519c0c8b/7c3a46ebf15a9796b763a54272407fdbf945bed8

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-2025-71190 (🔒)
GCVE (CVE): GCVE-0-2025-71190
GCVE (VulDB): GCVE-100-343620
EUVD: 🔒
CERT Bund: WID-SEC-2026-0280 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/31/2026 15:25
Updated: 03/26/2026 02:11
Changes: 01/31/2026 15:25 (58), 02/01/2026 01:18 (1), 02/01/2026 07:36 (2), 02/02/2026 18:12 (7), 03/26/2026 02:11 (11)
Complete: 🔍
Cache ID: 216::103

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