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CVE-2026-72093

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix use-after-free in amdxdna_gem_dmabuf_mmap() When vm_insert_pages() fails, the error path calls vma->vm_ops->…

Published Aug 15, 2026EPSS 0.17%

Overview

CVE-2026-72093 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, 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:

accel/amdxdna: Fix use-after-free in amdxdna_gem_dmabuf_mmap()

When vm_insert_pages() fails, the error path calls vma->vm_ops->close(vma)

which internally calls drm_gem_vm_close() → drm_gem_object_put(),

releasing the GEM object reference acquired at the start of the function.

However, the close_vma label then falls through to put_obj, which calls

drm_gem_object_put() a second time on the same object.

If the first put releases the last reference, the object is freed and the

second put accesses freed memory, causing a use-after-free.

Fix by returning directly from close_vma instead of falling through to

put_obj, since the close handler already performs all necessary cleanup

including the object put.

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/4e370b5289624f46a356dcc94f9f87025eaa6036Refgit.kernel.org/stable/c/5da885c39baa70f570a8be35a78e85a351f33918Refgit.kernel.org/stable/c/63bbf9ac5dde2ba85e7b39d0a0b7d540e6252ba4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72093?

CVE-2026-72093 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-72093?

This vulnerability has a CVSS 3.1 base score of 7.8, 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-2026-72093?

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-2026-72093?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72093 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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