{"id":24725,"date":"2026-09-16T20:32:41","date_gmt":"2026-09-16T12:32:41","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90037"},"modified":"2026-09-16T20:32:41","modified_gmt":"2026-09-16T12:32:41","slug":"cve-2026-90037","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90037","title":{"rendered":"CVE-2026-90037 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Prevent client"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>NFSD: Prevent client use-after-free during close_lru reaping<\/p>\n<p>An nfs4_openowner left on nn-&gt;close_lru after its final CLOSE keeps<br \/>\nits last closed stateid in oo_last_closed_stid, holding only a raw<br \/>\npointer to its nfs4_client. The laundromat reaps timed-out entries,<br \/>\ndrops nn-&gt;client_lock, and calls nfs4_put_stid(), which dereferences<br \/>\nthe client through cl_lock. Nothing pins the client across that<br \/>\nwindow, so a concurrent force_expire_client() can free it and<br \/>\nnfs4_put_stid() reads freed memory. __destroy_client() hits the same<br \/>\nrace, walking clp-&gt;cl_openowners without cl_lock.<\/p>\n<p>Pin the client with cl_rpc_users before dropping client_lock, and<br \/>\nskip clients already expiring. __destroy_client() then cleans up its<br \/>\nown close_lru entries through release_last_closed_stateid(), so<br \/>\nteardown no longer races the laundromat.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>NFSD: Prevent client use-after-free during close_lru reaping<\/p>\n<p>An nfs4_openowner left on nn-&gt;close_lru after its final CLOSE keeps<br \/>\ni<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24725","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24725","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=24725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}