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CVE-2026-68240

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/gpusvm: publish dpagemap early to avoid device mapping leak on error drm_gpusvm_get_pages() only stored the local dpagemap…

Published Aug 10, 2026EPSS 0.16%

Overview

CVE-2026-68240 is a high-severity vulnerability. It was published on August 10, 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. Some level of privileges is required for exploitation.

Technical description

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

drm/gpusvm: publish dpagemap early to avoid device mapping leak on error

drm_gpusvm_get_pages() only stored the local dpagemap into

svm_pages->dpagemap on the success path. If a later page failed (e.g.

-EOPNOTSUPP when ctx->allow_mixed is false) and jumped to err_unmap,

svm_pages->dpagemap was still NULL, so __drm_gpusvm_unmap_pages() skipped

device_unmap() and leaked the device mappings already created.

Assign svm_pages->dpagemap when the first device page is mapped so the

err_unmap path can device_unmap() those mappings.

This issue was found by Sashiko AI review.

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/72e4fca5529e45b5beebad79d804de442f632324Refgit.kernel.org/stable/c/7f708f51e3955bda0d77a0b67ab9bea6c97fea99Refgit.kernel.org/stable/c/e8362523fd1b61712f7d996802f9b5dee545c7e6

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68240?

CVE-2026-68240 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-68240?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2026-68240?

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-2026-68240?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68240 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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