{"id":25827,"date":"2026-09-18T04:31:56","date_gmt":"2026-09-17T20:31:56","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90418"},"modified":"2026-09-18T04:31:56","modified_gmt":"2026-09-17T20:31:56","slug":"cve-2026-90418","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90418","title":{"rendered":"CVE-2026-90418 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix BUG in ni"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch<\/p>\n<p>Syzbot reported a kernel BUG triggered within nilfs_copy_dirty_pages(),<br \/>\nwhich copies dirty DAT file folios\/pages to its shadow page cache.  The<br \/>\nBUG occurs when a retrieved dirty folio\/page unexpectedly loses its<br \/>\n&#8216;dirty&#8217; status.<\/p>\n<p>This issue arises because, since the commit referenced below, the &#8216;dirty&#8217;<br \/>\nflag of a folio\/page can be cleared asynchronously after the filesystem<br \/>\ndetects metadata corruption and transitions to read-only mode.<\/p>\n<p>Resolve the issue by returning an -EROFS error if the filesystem has<br \/>\ntransitioned to read-only mode.  Also change the behavior to issue a<br \/>\nkernel warning only once instead of triggering a kernel BUG when this<br \/>\nunexpected &#8216;dirty&#8217; state is detected while the filesystem is not in<br \/>\nread-only mode.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch<\/p>\n<p>Syzbot reported a kernel BUG triggered within nilfs_copy_dirty<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25827","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25827","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=25827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}