CVE-2026-64042
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
30/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
vfio/pci: Check BAR resources before exporting a DMABUF<br />
<br />
A DMABUF exports access to BAR resources and, although they are<br />
requested at startup time, we need to ensure they really were reserved<br />
before exporting. Otherwise, it&#39;s possible to access unreserved<br />
resources through the export.<br />
<br />
Add a check to the DMABUF-creation path.
Impact
Base Score 3.x
8.80
Severity 3.x
HIGH