CVE-2025-58149

A flaw was found in Xen. When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access to any 64bit memory BAR when such device is no longer assigned to the domain. A buggy or...

Incorrect removal of permissions on PCI device unplug

ISSUE DESCRIPTION When passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the...