{"id":21506,"date":"2026-09-12T04:31:17","date_gmt":"2026-09-11T20:31:17","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89584"},"modified":"2026-09-12T04:31:17","modified_gmt":"2026-09-11T20:31:17","slug":"cve-2026-89584","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89584","title":{"rendered":"CVE-2026-89584 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nblock: validate user"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>block: validate user space vectors during extraction<\/p>\n<p>The bio-based drivers don&#8217;t necessarily check the alignment split, and<br \/>\nstacking block drivers don&#8217;t always handle a misalignment detected after<br \/>\nsubmitting the bio. Validate user vectors against the device&#8217;s<br \/>\ndma_alignment as the bio is built from the iov_iter, rejecting<br \/>\nmisaligned early with -EINVAL.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>block: validate user space vectors during extraction<\/p>\n<p>The bio-based drivers don&#8217;t necessarily check the alignment split, and<br \/>\nstacki<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21506","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21506","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=21506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}