kernel: vfio/pci: Check BAR resources before exporting a DMABUF

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 ...

PT-2026-61359

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the vfio/pci component where BAR Base Address Register resources are not verified before exporting a DMABUF. While these resources are requested during startup, the la...