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CVE-2026-52987

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_exec_fini() in userq validate When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec…

Published Jun 24, 2026CWE-1341EPSS 0.18%

Overview

CVE-2026-52987 is a high-severity vulnerability. It was published on June 24, 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:

drm/amdgpu: avoid double drm_exec_fini() in userq validate

When new_addition is true, amdgpu_userq_vm_validate() calls

drm_exec_fini(&exec) before iterating over the collected HMM ranges and

calling amdgpu_ttm_tt_get_user_pages().

If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to

unlock_all and calls drm_exec_fini(&exec) a second time on the same

exec object. drm_exec_fini() is not idempotent: it frees exec->objects

and may also drop exec->contended and finalize the ww acquire context.

Route that error path directly to the range cleanup once exec has

already been finalized.

Issue found using a prototype static analysis tool

and confirmed by code review.

(cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)

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/508babf310365f1107a2e8831c267c292a286818Refgit.kernel.org/stable/c/c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38Refaccess.redhat.com/security/cve/CVE-2026-52987Refbugzilla.redhat.com/show_bug.cgi?id=2492365Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52987.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-52987?

CVE-2026-52987 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-52987?

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-2026-52987?

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-2026-52987?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-52987 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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