Linux Kernel up to 6.19.10 dmaengine .release privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.1.167/6.6.130/6.12.79/6.18.20/6.19.10. Affected by this issue is the function .release of the component dmaengine. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2026-43064. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.167/6.6.130/6.12.79/6.18.20/6.19.10. It has been declared as critical. This vulnerability affects the function .release of the component dmaengine. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix not releasing workqueue on .release() The workqueue associated with an DSA/IAA device is not released when the object is freed.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-43064 since 05/01/2026. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/05/2026).

The vulnerability scanner Nessus provides a plugin with the ID 325059 (Debian dla-4665 : affs-modules-6.1.0-48-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.168, 6.6.131, 6.12.80, 6.18.21 or 6.19.11 eliminates this vulnerability. Applying the patch fd4cb61bbd0fc3a749a8da6145cbb56d8f6dba35/2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e/d02c24af126dee45247dc7890409c86d1831859d/958e96533ddbd1edd127feb7624a7eed0cc379dc/fc34f199eb576b3a73089452fdf0056cc9a9301d/3d33de353b1ff9023d5ec73b9becf80ea87af695 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 (325059) and CERT Bund (WID-SEC-2026-1385). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Microsoft Azure Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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: 325059
Nessus Name: Debian dla-4665 : affs-modules-6.1.0-48-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.168/6.6.131/6.12.80/6.18.21/6.19.11
Patch: fd4cb61bbd0fc3a749a8da6145cbb56d8f6dba35/2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e/d02c24af126dee45247dc7890409c86d1831859d/958e96533ddbd1edd127feb7624a7eed0cc379dc/fc34f199eb576b3a73089452fdf0056cc9a9301d/3d33de353b1ff9023d5ec73b9becf80ea87af695

Timelineinfo

05/01/2026 CVE reserved
05/05/2026 +4 days Advisory disclosed
05/05/2026 +0 days VulDB entry created
07/05/2026 +61 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43064 (🔒)
GCVE (CVE): GCVE-0-2026-43064
GCVE (VulDB): GCVE-100-361186
CERT Bund: WID-SEC-2026-1385 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/05/2026 19:00
Updated: 07/05/2026 22:05
Changes: 05/05/2026 19:00 (58), 05/06/2026 22:08 (7), 06/01/2026 04:42 (10), 06/08/2026 13:13 (1), 07/05/2026 22:05 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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