{"id":25877,"date":"2026-09-18T04:32:01","date_gmt":"2026-09-17T20:32:01","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-92508"},"modified":"2026-09-18T04:32:01","modified_gmt":"2026-09-17T20:32:01","slug":"cve-2026-92508","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-92508","title":{"rendered":"CVE-2026-92508 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/core: Fix potent"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/core: Fix potential use after free in ib_free_cq()<\/p>\n<p>When accessing a CQ via the netlink path the only synchronization<br \/>\nmechanism for the said CQ is rdma_restrack_get().<br \/>\nCurrently, rdma_restrack_del() is invoked at the end of<br \/>\nib_free_cq(), which is too late, since by that point<br \/>\nvendor-specific resources associated with the CQ might already be<br \/>\nfreed. This can leave a short window where the CQ remains accessible<br \/>\nthrough restrack, leading to a potential use-after-free.<\/p>\n<p>Fix this by moving the rdma_restrack_del() call to be before the freeing<br \/>\nof the vendor-specific resources ensuring that the CQ is removed from<br \/>\nrestrack before its internal resources are released.<br \/>\nThis guarantees that no new users hold references to a CQ that is in<br \/>\nthe process of destruction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/core: Fix potential use after free in ib_free_cq()<\/p>\n<p>When accessing a CQ via the netlink path the only synchronization<br \/>\nmechanis<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25877","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25877","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=25877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}