Xen Security Advisory 506 v2 (CVE-2026-62433) - correct buffer checks for DM_OP hypercalls

<p>Posted by Xen . org security team on Jul 28</p> Xen Security Advisory CVE-2026-62433 / XSA-506<br /> version 2<br /> <br /> correct buffer checks for DM_OP hypercalls<br /> <br /> UPDATES IN VERSION 2<br /> ====================<br /> <br /> Public release.<br /> <br /> ISSUE DESCRIPTION<br /> =================<br /> <br /> Parts of the DM_