CVE-2026-64042

A flaw was found in the Linux kernel's vfio/pci subsystem. This vulnerability occurs because the Direct Memory Access Buffer DMABUF export mechanism does not adequately verify if Base Address Register BAR resources are properly reserved before allowing access. A local attacker could exploit this ...

CVE-2026-64042

The CVE-2026-64042 issue affects the Linux kernel’s VFIO PCI path, where a DMABUF export could reveal BAR resources that were not properly reserved. The root cause is a missing guard in the DMABUF-creation path, allowing access to unreserved BAR resources via the export. The public description no...