{"id":25628,"date":"2026-09-18T04:31:39","date_gmt":"2026-09-17T20:31:39","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90219"},"modified":"2026-09-18T04:31:39","modified_gmt":"2026-09-17T20:31:39","slug":"cve-2026-90219","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90219","title":{"rendered":"CVE-2026-90219 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/cxgb4: Free debu"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/cxgb4: Free debugfs on registration failure<\/p>\n<p>c4iw_alloc() creates the per-device debugfs tree (dev-&gt;debugfs_root via<br \/>\nsetup_debugfs()), but it is removed only in c4iw_remove(), not in<br \/>\nc4iw_dealloc().  When RDMA device registration fails, the registration<br \/>\nworker&#8217;s err_dealloc_ctx path calls c4iw_dealloc() directly, bypassing<br \/>\nc4iw_remove(), so the debugfs dentries leak and outlive the freed<br \/>\nc4iw_dev.<\/p>\n<p>Move debugfs_remove_recursive() into c4iw_dealloc() so every path that<br \/>\nfrees ctx-&gt;dev also removes its debugfs tree.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/cxgb4: Free debugfs on registration failure<\/p>\n<p>c4iw_alloc() creates the per-device debugfs tree (dev-&gt;debugfs_root via<br \/>\nsetup_deb<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25628","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25628","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=25628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}