{"id":17308,"date":"2026-09-05T02:30:58","date_gmt":"2026-09-04T18:30:58","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80804"},"modified":"2026-09-05T02:30:58","modified_gmt":"2026-09-04T18:30:58","slug":"cve-2026-80804","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80804","title":{"rendered":"CVE-2026-80804 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: restore nofs con"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xfs: restore nofs context unconditionally in xfs_trans_roll<\/p>\n<p>When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context<br \/>\nis cleared but only restored in the success path.  This leaves the<br \/>\nerror path without nofs protection, causing a circular lock dependency<br \/>\nbetween xfs_nondir_ilock_class and fs_reclaim:<\/p>\n<p>       CPU0                    CPU1<br \/>\n       &#8212;-                    &#8212;-<br \/>\n  lock(&amp;xfs_nondir_ilock_class);<br \/>\n                               lock(fs_reclaim);<br \/>\n                               lock(&amp;xfs_nondir_ilock_class);<br \/>\n  lock(fs_reclaim);<\/p>\n<p>Fix this by moving xfs_trans_set_context() before the error check so<br \/>\nthat nofs context is always restored on the new transaction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xfs: restore nofs context unconditionally in xfs_trans_roll<\/p>\n<p>When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17308","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17308","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=17308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}