---
id: CVE-2026-43064
title: 'dmaengine: idxd: Fix not releasing workqueue on .release()'
summary: |-
  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.
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    70ae35be58d476e2fd9f7a941a5e03b2f5fadb8d
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    b22fd53b2ceb35445475f0edab13a908c5fb8433
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    d02c24af126dee45247dc7890409c86d1831859d
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    958e96533ddbd1edd127feb7624a7eed0cc379dc
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    fc34f199eb576b3a73089452fdf0056cc9a9301d
  - >-
    Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 <
    3d33de353b1ff9023d5ec73b9becf80ea87af695
  - Linux 3f0e87eb9680975184e98aed0e8866b4442a31f6
  - Linux a13e4cf29da68630a116c1309072a265ade9566d
  - Linux >= 5.11.22 < 5.12
  - Linux >= 5.12.5 < 5.13
  - Linux 5.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T15:27:42.454015Z'
published: '2026-05-05'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:32:29.418Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-43064'
references:
  - url: 'https://git.kernel.org/stable/c/70ae35be58d476e2fd9f7a941a5e03b2f5fadb8d'
  - url: 'https://git.kernel.org/stable/c/b22fd53b2ceb35445475f0edab13a908c5fb8433'
  - url: 'https://git.kernel.org/stable/c/2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e'
  - url: 'https://git.kernel.org/stable/c/d02c24af126dee45247dc7890409c86d1831859d'
  - url: 'https://git.kernel.org/stable/c/958e96533ddbd1edd127feb7624a7eed0cc379dc'
  - url: 'https://git.kernel.org/stable/c/fc34f199eb576b3a73089452fdf0056cc9a9301d'
  - url: 'https://git.kernel.org/stable/c/3d33de353b1ff9023d5ec73b9becf80ea87af695'
tags:
  - cve.org
epss: 0.00114
epssPercentile: 0.01495
ingestedAt: '2026-11-06T15:54:04.027Z'
---

## Overview

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.

## Affected

- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < 70ae35be58d476e2fd9f7a941a5e03b2f5fadb8d`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < b22fd53b2ceb35445475f0edab13a908c5fb8433`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < 2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < d02c24af126dee45247dc7890409c86d1831859d`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < 958e96533ddbd1edd127feb7624a7eed0cc379dc`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < fc34f199eb576b3a73089452fdf0056cc9a9301d`
- `Linux >= 47c16ac27d4cb664cee53ee0b9b7e2f907923fb3 < 3d33de353b1ff9023d5ec73b9becf80ea87af695`
- `Linux 3f0e87eb9680975184e98aed0e8866b4442a31f6`
- `Linux a13e4cf29da68630a116c1309072a265ade9566d`
- `Linux >= 5.11.22 < 5.12`
- `Linux >= 5.12.5 < 5.13`
- `Linux 5.13`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.