{"id":28668,"date":"2026-09-25T04:31:33","date_gmt":"2026-09-24T20:31:33","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97421"},"modified":"2026-09-25T04:31:33","modified_gmt":"2026-09-24T20:31:33","slug":"cve-2026-97421","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97421","title":{"rendered":"CVE-2026-97421 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/umem: Be careful"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()<\/p>\n<p>Several corner cases, especially important on 32 bits:<\/p>\n<p>&#8211; umem-&gt;iova is u64, the function argument should pass in u64 or<br \/>\n  iova will be truncated<br \/>\n&#8211; Check that the length is not too large for the iova<br \/>\n&#8211; Check that lengths &gt; 4G don&#8217;t overflow the GENMASK<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()<\/p>\n<p>Several corner cases, especially important on 32 bits:<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28668","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28668","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=28668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}