{"id":40942,"date":"2026-10-19T00:31:38","date_gmt":"2026-10-18T16:31:38","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98470"},"modified":"2026-10-19T00:31:38","modified_gmt":"2026-10-18T16:31:38","slug":"cve-2026-98470","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98470","title":{"rendered":"CVE-2026-98470 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Don&#8217;t WAR"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: arm64: Don&#8217;t WARN on an unknown VM ioctl in protected mode<\/p>\n<p>kvm_pkvm_ioctl_allowed() WARNs when kvm_get_cap_for_kvm_ioctl() doesn&#8217;t<br \/>\nfind the ioctl number in vm_ioctl_caps[], and kvm_arch_vm_ioctl() calls<br \/>\nit for every number the generic code doesn&#8217;t handle, so<br \/>\nioctl(vm_fd, 0xdeadbeef) from userspace taints a pKVM host and panics it<br \/>\nunder panic_on_warn. The lookup is fed userspace input: return false,<br \/>\nand userspace gets the -EINVAL kvm_arch_vm_ioctl() returns for that<br \/>\nnumber on a host without pKVM.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>KVM: arm64: Don&#8217;t WARN on an unknown VM ioctl in protected mode<\/p>\n<p>kvm_pkvm_ioctl_allowed() WARNs when kvm_get_cap_for_kvm_ioctl() do<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-40942","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/40942","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=40942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}