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

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

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. This affects an unknown function of the component dmaengine. This manipulation causes allocation of resources. This vulnerability is registered as CVE-2025-71188. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been 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 vulnerability is some unknown processing of the component dmaengine. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: lpc18xx-dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-71188 since 01/31/2026. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 297457 (Linux Distros Unpatched Vulnerability : CVE-2025-71188), 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 9fba97baa520c9446df51a64708daf27c5a7ed32/992eb8055a6e5dbb808672d20d68e60d5a89b12b/1e47d80f6720f0224efd19bcf081d39637569c10/d4d63059dee7e7cae0c4d9a532ed558bc90efb55 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 (297457), EUVD (EUVD-2025-206587) and CERT Bund (WID-SEC-2026-0280). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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Version

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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: 297457
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71188

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: 9fba97baa520c9446df51a64708daf27c5a7ed32/992eb8055a6e5dbb808672d20d68e60d5a89b12b/1e47d80f6720f0224efd19bcf081d39637569c10/d4d63059dee7e7cae0c4d9a532ed558bc90efb55

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-2025-71188 (🔒)
GCVE (CVE): GCVE-0-2025-71188
GCVE (VulDB): GCVE-100-343615
EUVD: 🔒
CERT Bund: WID-SEC-2026-0280 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/31/2026 15:23
Updated: 03/26/2026 02:11
Changes: 01/31/2026 15:23 (58), 02/01/2026 01:18 (1), 02/01/2026 08:02 (2), 02/02/2026 16:08 (7), 03/26/2026 02:11 (11)
Complete: 🔍
Cache ID: 216::103

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