Vulnerability Description
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.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/702809dabdecca807bdd50cfdcc1c980feb2ba62
- https://git.kernel.org/stable/c/8443cd4497a4498c4b01058d76a92116244cb605
FAQ
What is CVE-2026-64042?
CVE-2026-64042 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...
How severe is CVE-2026-64042?
CVE-2026-64042 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64042?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.