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CVE-2026-98518

7.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/dmem: pin VRAM for the whole registered range Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU mem…

Published Oct 18, 2026EPSS 0.13%

Overview

CVE-2026-98518 is a high-severity vulnerability. It was published on October 18, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. 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:

drm/nouveau/dmem: pin VRAM for the whole registered range

Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory

migration") grew the device-private region that

nouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to

DMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that

region at DMEM_CHUNK_SIZE.

nouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset

within the registered region, so every page past the first chunk resolves

to VRAM outside the buffer object.

Size the buffer object to the region it backs.

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/06c69c64686a31783c8bec6495dc22822d38c4ceRefgit.kernel.org/stable/c/64ca4cdd1031206424e6455f0ae4fb0560d8f46a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-98518?

CVE-2026-98518 is a high-severity vulnerability. It was published on October 18, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2026-98518?

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-98518?

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-2026-98518?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98518 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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