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CVE-2026-64170

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: spi: qup: fix error pointer deref after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe.

Published Jul 19, 2026linuxCWE-476EPSS 0.11%

Overview

CVE-2026-64170 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 19, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

spi: qup: fix error pointer deref after DMA setup failure

The driver falls back to PIO mode if DMA setup fails during probe.

Make sure to the clear the DMA channel pointers on setup failure to

avoid dereferencing an error pointer (or attempting to release a channel

a second time) on later probe errors or driver unbind.

This issue was flagged by Sashiko when reviewing a devres allocation

conversion patch.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 4.1, < 5.10.259Affected

References

Refgit.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955eRefgit.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20Refgit.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5Refgit.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3Refgit.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238Refgit.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56Refgit.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149dbRefgit.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-64170?

CVE-2026-64170 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 19, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-64170?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-64170?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-64170?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-64170 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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