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CVE-2026-52950

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF.

Published Jun 24, 2026CWE-416EPSS 0.18%

Overview

CVE-2026-52950 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/xe/dma-buf: fix UAF with retry loop

Retry doesn't work here, since bo will be freed on error, leading to

UAF. However, now that we do the alloc & init before the attach, we can

now combine this as one unit and have the init do the alloc for us. This

should make the retry safe.

Reported by Sashiko.

v2: Fix up the error unwind (CI)

(cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)

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/155a372a1cc50fa93387c5d3cdfd614a61e1afd1Refgit.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ceRefgit.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedfRefaccess.redhat.com/errata/RHSA-2026:42919Refaccess.redhat.com/errata/RHSA-2026:45192Refaccess.redhat.com/security/cve/CVE-2026-52950Refbugzilla.redhat.com/show_bug.cgi?id=2492318Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-52950?

CVE-2026-52950 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-2026-52950?

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-2026-52950?

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-2026-52950?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-52950 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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