CVE-2026-64042

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Check BAR resources before exporting a DMABUF A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved before exporting. Otherwise, it's possible to access unreserved resources through the export. Add a check to the DMABUF-creation path.

Package Linux Kernel
Published 2026-07-19
Last modified 2026-07-19
Patch available
Yes

Affected versions

Linux kernel versions 6.19 and later are affected. Fixed in 7.0.11, 7.1 and their respective stable series.

Affected from
≥ 6.19
Fixed in
✓ 7.0.11 7.0.x ✓ 7.1

References

2 total

Frequently asked questions

  • What is CVE-2026-64042?

    CVE-2026-64042 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.19 onward and has been patched in 7.0.11 and 7.1. CVE-2026-64042 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-64042?

    Yes — CVE-2026-64042 has been patched. Fixed versions include 7.0.11 and 7.1. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-64042 actively exploited?

    No — CVE-2026-64042 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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