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CVE-2026-89995

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: dma-direct: return struct page from dma_direct_alloc_from_pool() Commit 5b138c534fda ("dma-direct: factor out a dma_direct_allo…

Published Sep 16, 2026EPSS 0.35%

Overview

CVE-2026-89995 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

dma-direct: return struct page from dma_direct_alloc_from_pool()

Commit 5b138c534fda ("dma-direct: factor out a dma_direct_alloc_from_pool

helper") changed dma_direct_alloc_from_pool() to return the CPU address

from dma_alloc_from_pool(). That fits dma_direct_alloc(), but

dma_direct_alloc_pages() also uses the helper and expects a struct page *.

Fix this by making dma_direct_alloc_from_pool() return the struct page *

again, and pass the CPU address back through an out-parameter for the

dma_direct_alloc() caller.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/1ca96bbfef42bbfb139cc6eb1d940c8ca9046f95Refgit.kernel.org/stable/c/408ff2d5bf555bd3f4c84a2edb95c0690bf9edc8Refgit.kernel.org/stable/c/7801e616fbe3661f9471b2e9bfcb1ed35460bf16Refgit.kernel.org/stable/c/94a04ad732c9f8b9554270fc4038a06737de5c22Refgit.kernel.org/stable/c/c3fdb94da43ff23287f85664174c45c45e881a3fRefgit.kernel.org/stable/c/feeb2ef775081a6c188cdd10e7a45369a07ce531

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89995?

CVE-2026-89995 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-89995?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-89995?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2026-89995?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89995 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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