In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
KVM: s390: Take srcu when importing watchpoint data<\/p>\n
__import_wp_info() backs up the original guest memory contents of a
\nwatchpoint with read_guest_abs(), which is kvm_read_guest() and therefore
\nresolves the memslot via __kvm_memslots(). That requires kvm->srcu (or
\nkvm->slots_lock) to be held, otherwise a concurrent memslot update can
\nfree the memslots array under us once its SRCU grace period has elapsed.<\/p>\n
As this is not fast path, following lock ordering (mutex first, then
\nsrcu) take the big hammer and hold the srcu for the full import.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
KVM: s390: Take srcu when importing watchpoint data<\/p>\n
__import_wp_info() backs up the original guest memory contents of a
\nwatchpoint<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24609","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24609","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=24609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}