x86: mismatched mapcache metadata

ISSUE DESCRIPTION Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache. IMPACT Privilege escalation, Denial of...

PT-2026-48241

Name of the Vulnerable Software and Affected Versions Xen affected versions not specified Description HVM guest I/O port accesses require either emulation or translation. These translations are managed by the device model through 'XEN DOMCTL ioport mapping'. The linked list used for these...

PT-2026-48244

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controlling a particular guest. Some of these...

PT-2026-48242

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Certain shadow paging error paths switch page-tables without updating the currently running vCPU reference. This creates a mismatch between the loaded page-table...