{"id":21595,"date":"2026-09-12T04:31:23","date_gmt":"2026-09-11T20:31:23","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89673"},"modified":"2026-09-12T04:31:23","modified_gmt":"2026-09-11T20:31:23","slug":"cve-2026-89673","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89673","title":{"rendered":"CVE-2026-89673 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix XDR padding"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo<\/p>\n<p>nfsd4_ff_encode_getdeviceinfo() computes the da_addr_body reservation<br \/>\nas 16 + netid_len + addr_len, but the subsequent xdr_encode_opaque()<br \/>\ncalls emit 8 + round_up(netid_len, 4) + round_up(addr_len, 4) bytes.<br \/>\nThe mismatch means the declared da_addr_body length exceeds the actual<br \/>\nencoded data by 2-8 bytes on every flexfile GETDEVICEINFO reply,<br \/>\nleaking stale reply-page content to the client and mis-aligning the<br \/>\nsubsequent version list decode.<\/p>\n<p>Use xdr_align_size() for each string length to match what<br \/>\nxdr_encode_opaque() actually writes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo<\/p>\n<p>nfsd4_ff_encode_getdeviceinfo() computes the da_addr_body reservation<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21595","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21595","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=21595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}