In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
vduse: hold vduse_lock across IDR lookup in open path<\/p>\n
vduse_dev_open() looks up struct vduse_dev through the IDR and then
\nacquires dev->lock only after vduse_lock has been dropped.<\/p>\n
This leaves a window where a concurrent VDUSE_DESTROY_DEV can remove the
\nsame object from the IDR and free it before the open path locks the
\ndevice, leading to a use-after-free.<\/p>\n
Close this race by keeping vduse_lock held until dev->lock has been
\nacquired in the open path, matching the lock ordering already used by
\nthe destroy path.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
vduse: hold vduse_lock across IDR lookup in open path<\/p>\n
vduse_dev_open() looks up struct vduse_dev through the IDR and then
\nacquires<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7258","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7258","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=7258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}