CVE-2026-79602

Xen (x86) contains an improper handling of HVM emulation return codes that can be triggered by a guest with an assigned PCI device whose BAR is mapped in the IO port space . This causes a BUG() in the Xen hypervisor, effectively a kernel-level crash. The advisory is tracked as XSA-510 (xenbits.xe...

CVE-2026-79602 x86: improper handling of HVM emulation return codes

A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen...