{"id":5347,"date":"2026-09-04T18:47:46","date_gmt":"2026-09-04T10:47:46","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68140"},"modified":"2026-09-04T18:47:46","modified_gmt":"2026-09-04T10:47:46","slug":"cve-2026-68140","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68140","title":{"rendered":"CVE-2026-68140 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnet\/iucv: fix use-aft"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net\/iucv: fix use-after-free of a severed iucv_path<\/p>\n<p>af_iucv queues not-yet-received message notifications on iucv-&gt;message_q,<br \/>\neach holding a raw pointer to the connection&#8217;s iucv_path.  When the peer<br \/>\nsevers the connection, iucv_sever_path() frees that path with<br \/>\niucv_path_free() but leaves the notifications queued.  A later recvmsg()<br \/>\ndrains message_q via iucv_process_message_q() and hands the stale path to<br \/>\nmessage_receive() &#8212; a use-after-free of the freed iucv_path.<\/p>\n<p>Drop the queued notifications when the path is severed; once the path is<br \/>\ngone they can no longer be received.  This also frees the notifications<br \/>\nleaked when a socket is closed with messages still queued.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net\/iucv: fix use-after-free of a severed iucv_path<\/p>\n<p>af_iucv queues not-yet-received message notifications on iucv-&gt;message_q,<br \/>\neach<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-5347","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/5347","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=5347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}