{"id":15077,"date":"2026-09-04T19:02:24","date_gmt":"2026-09-04T11:02:24","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64106"},"modified":"2026-09-04T19:02:24","modified_gmt":"2026-09-04T11:02:24","slug":"cve-2026-64106","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64106","title":{"rendered":"CVE-2026-64106 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-its:"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits<\/p>\n<p>Userspace can restore an ITS Device Table Entry whose Size field encodes<br \/>\nmore EventID bits than the virtual ITS supports.  The live MAPD path<br \/>\nrejects that state, but vgic_its_restore_dte() accepts it and stores the<br \/>\nout-of-range value in dev-&gt;num_eventid_bits.<\/p>\n<p>Reject restored DTEs with num_eventid_bits &gt; VITS_TYPER_IDBITS before<br \/>\nallocating the device.  This mirrors the MAPD check and prevents the<br \/>\nrestored state from reaching vgic_its_restore_itt(), where the unchecked<br \/>\nvalue can be converted into an oversized scan_its_table() range.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits<\/p>\n<p>Userspace can restore an ITS Device Table Entry whose<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-15077","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/15077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}