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CVE-2026-53068

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflow in AFBC framebuffer size check The AFBC framebuffer size validation calculates the minimum req…

Published Jun 24, 2026CWE-190EPSS 0.17%

Overview

CVE-2026-53068 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, 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/komeda: fix integer overflow in AFBC framebuffer size check

The AFBC framebuffer size validation calculates the minimum required

buffer size by adding the AFBC payload size to the framebuffer offset.

This addition is performed without checking for integer overflow.

If the addition oveflows, the size check may incorrectly succed and

allow userspace to provide an undersized drm_gem_object, potentially

leading to out-of-bounds memory access.

Add usage of check_add_overflow() to safely compute the minimum

required size and reject the framebuffer if an overflow is detected.

This makes the AFBC size validation more robust against malformed.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583Refgit.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289deRefgit.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8Refgit.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097dRefgit.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7Refgit.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7cRefgit.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460Refgit.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53068?

CVE-2026-53068 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-53068?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2026-53068?

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-2026-53068?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53068 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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