{"id":25719,"date":"2026-09-18T04:31:47","date_gmt":"2026-09-17T20:31:47","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90310"},"modified":"2026-09-18T04:31:47","modified_gmt":"2026-09-17T20:31:47","slug":"cve-2026-90310","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90310","title":{"rendered":"CVE-2026-90310 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nxen\/xenbus: check oth"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xen\/xenbus: check otherend_id only after it has been initialized<\/p>\n<p>When device just got initialized (for example on module load), the<br \/>\notherend_id field is initialized only after<br \/>\nxenbus_read_otherend_details() gets called. If xenstore watch triggers<br \/>\nxenbus_dev_changed() before that, it might consider still zeroed<br \/>\notherend_id field (not matching actual xenstore content) as a sign of<br \/>\ndevice state reset. It can happen because xenstore watch are handled in<br \/>\nanother thread (xenwatch), which can run in parallel to the initial<br \/>\ndevice probe running at module load. In that case, it would call<br \/>\ndevice_unregister(), which would deadlock against device probe from<br \/>\nmodule init.<\/p>\n<p>Fix this by considering dev-&gt;otherend_id change only after dev-&gt;otherend<br \/>\nis set (which happen after otherend_id is initialized).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xen\/xenbus: check otherend_id only after it has been initialized<\/p>\n<p>When device just got initialized (for example on module load), th<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25719","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25719","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=25719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}