What’s Vulnerable › Vulnerabilities

CVE-2026-43064: dmaengine: idxd: Fix not releasing workqueue on .release()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-05 · updated 2026-06-19

Description

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 products

• Linux kernel: from 5.11.22 before 5.12; from 5.12.5 before 5.13; from 5.13 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21 — fixed in 5.12, 5.13, 6.1.168, 6.12.80, 6.18.21, 6.19.11

How to fix

Upgrade to a fixed version: Linux kernel 5.12, 5.13, 6.1.168, 6.12.80. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2bb9e9e93adff9cc8a138ae9a3a8d59b3452272e
• https://git.kernel.org/stable/c/3d33de353b1ff9023d5ec73b9becf80ea87af695
• https://git.kernel.org/stable/c/70ae35be58d476e2fd9f7a941a5e03b2f5fadb8d
• https://git.kernel.org/stable/c/958e96533ddbd1edd127feb7624a7eed0cc379dc
• https://git.kernel.org/stable/c/b22fd53b2ceb35445475f0edab13a908c5fb8433
• https://git.kernel.org/stable/c/d02c24af126dee45247dc7890409c86d1831859d
• https://git.kernel.org/stable/c/fc34f199eb576b3a73089452fdf0056cc9a9301d

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