CVE-2025-58149
Description
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 malicious PV guest can access memory of PCI devices no longer assigned to it.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
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