CVE-2026-42493
Description
AI Translation Available
Addressing certain issues, in particular related to operations which may
take excessively long and therefore would need preemption, has turned out
overly costly. Since alternatives (HVM/PVH: HAP, PV: shim) are commonly
available, the decision was to deprecate the functionality, while still
retaining it for people to use at their own (security) risk. Memory-wise
small enough guests may still be okay to run.
http://xenbits.xen.org/xsa/advisory-495.html
https://xenbits.xenproject.org/xsa/advisory-495.html