In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails<\/p>\n
Nullify irqfd->producer if updating the IRTE for bypass fails, as leaving a
\ndangling pointer will result in a use-after-free if the irqfd is reachable
\nthrough KVM’s routing, but the producer is freed separately. E.g. for VFIO
\nPCI, the producer is embedded in struct “vfio_pci_irq_ctx” and freed when
\nthe vector is disabled, which can happen independent of routing updates.<\/p>\n
[sean: drop PPC change, massage changelog]<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails<\/p>\n
Nullify irqfd->producer if updating the IRTE for bypass fails,<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6897","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6897","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=6897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}