{"id":41192,"date":"2026-10-19T00:32:32","date_gmt":"2026-10-18T16:32:32","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98720"},"modified":"2026-10-19T00:32:32","modified_gmt":"2026-10-18T16:32:32","slug":"cve-2026-98720","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98720","title":{"rendered":"CVE-2026-98720 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Force MSR"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified<\/p>\n<p>Force a refresh of the vmcs02 MSR bitmap during nested VM-Enter if the<br \/>\nruntime eVMCS controls (pin, primary, secondary, etc.) are being updated.<br \/>\nIf L1 isn&#8217;t intercepting TPR writes, runs L2 with TPR virtualization, and<br \/>\nthen runs the same L2 with TPR virtualization disabled, KVM will fail to<br \/>\nrefresh msr_bitmap02 and leave TPR in passthrough mode even though TPR<br \/>\nvirtualization is disabled.  I.e. failure to refresh the bitmap lets L2 (or<br \/>\nL1 by proxy) read and write L0&#8217;s TPR.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified<\/p>\n<p>Force a refresh of the vmcs02 MSR bitmap during nested <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41192","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41192","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=41192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}