{"id":14877,"date":"2026-09-04T19:02:16","date_gmt":"2026-09-04T11:02:16","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63800"},"modified":"2026-09-04T19:02:16","modified_gmt":"2026-09-04T11:02:16","slug":"cve-2026-63800","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63800","title":{"rendered":"CVE-2026-63800 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\npNFS: Fix use-after-f"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>pNFS: Fix use-after-free in pnfs_update_layout()<\/p>\n<p>When hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(),<br \/>\nthe code calls pnfs_prepare_to_retry_layoutget(lo). If it succeeds,<br \/>\npnfs_put_layout_hdr(lo) is called before trace_pnfs_update_layout(),<br \/>\nwhich still references &#8216;lo&#8217;. This results in a use-after-free when the<br \/>\ntracepoint accesses lo&#8217;s fields.<\/p>\n<p>Fix this by moving the tracepoint call before pnfs_put_layout_hdr(lo).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>pNFS: Fix use-after-free in pnfs_update_layout()<\/p>\n<p>When hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(),<br \/>\nthe code calls<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14877","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14877","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=14877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}