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

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5. The impacted element is the function dma_pool_create of the component dmaengine. This manipulation causes allocation of resources. This vulnerability appears as CVE-2026-23033. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5. Affected by this vulnerability is the function dma_pool_create 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. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: omap-dma: fix dma_pool resource leak in error paths The dma_pool created by dma_pool_create() is not destroyed when dma_async_device_register() or of_dma_controller_register() fails, causing a resource leak in the probe error paths. Add dma_pool_destroy() in both error paths to properly release the allocated dma_pool resource.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-23033 since 01/13/2026. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 297481 (Linux Distros Unpatched Vulnerability : CVE-2026-23033), 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 88a9483f093bbb9263dcf21bc7fdb5132e5de88d/4b93712e96be17029bd22787f2e39feb0e73272c/829b00481734dd54e72f755fd6584bce6fbffbb0/2e1136acf8a8887c29f52e35a77b537309af321f 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 (297481), EUVD (EUVD-2026-5061) and CERT Bund (WID-SEC-2026-0280). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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Name

Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297481
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23033

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: 88a9483f093bbb9263dcf21bc7fdb5132e5de88d/4b93712e96be17029bd22787f2e39feb0e73272c/829b00481734dd54e72f755fd6584bce6fbffbb0/2e1136acf8a8887c29f52e35a77b537309af321f

Timelineinfo

01/13/2026 CVE reserved
01/31/2026 +18 days Advisory disclosed
01/31/2026 +0 days VulDB entry created
06/02/2026 +122 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23033 (🔒)
GCVE (CVE): GCVE-0-2026-23033
GCVE (VulDB): GCVE-100-343603
EUVD: 🔒
CERT Bund: WID-SEC-2026-0280 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/31/2026 15:18
Updated: 06/02/2026 19:21
Changes: 01/31/2026 15:18 (59), 02/01/2026 00:08 (1), 02/01/2026 03:51 (2), 02/02/2026 20:51 (7), 06/02/2026 19:21 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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