{"id":40918,"date":"2026-10-19T00:31:33","date_gmt":"2026-10-18T16:31:33","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98446"},"modified":"2026-10-19T00:31:33","modified_gmt":"2026-10-18T16:31:33","slug":"cve-2026-98446","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98446","title":{"rendered":"CVE-2026-98446 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don&#8217;t let hidden"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xfs: don&#8217;t let hidden_space go negative in xfs_metafile_resv_init<\/p>\n<p>LOLLM points out that if the amount of fdblocks that we can reserve for<br \/>\na metadata btree file goes below the space already used by that file,<br \/>\nthen the hidden_space subtraction can underflow, causing<br \/>\nxfs_dec_fdblocks to subtract a huge amount of space.  We never want the<br \/>\ntarget to be less than the used sapce, so fix the logic that adjusts<br \/>\ndblocks_avail downwards.<\/p>\n<p>Also fix an error in the adjacent comment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>xfs: don&#8217;t let hidden_space go negative in xfs_metafile_resv_init<\/p>\n<p>LOLLM points out that if the amount of fdblocks that we can rese<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-40918","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/40918","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=40918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}