{"id":8826,"date":"2026-09-04T18:50:06","date_gmt":"2026-09-04T10:50:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74537-2"},"modified":"2026-09-04T18:50:06","modified_gmt":"2026-09-04T10:50:06","slug":"cve-2026-74537-2","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74537-2","title":{"rendered":"CVE-2026-74537 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: hold"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: ISO: hold sk properly in iso_conn_ready<\/p>\n<p>sk deref in iso_conn_ready must be done either under conn-&gt;lock, or<br \/>\nholding a refcount, to avoid concurrent close. conn-&gt;sk is currently<br \/>\naccessed without either:<\/p>\n<p>    [Task 1]            [Task 2]<br \/>\n                        iso_sock_release<br \/>\n    iso_conn_ready<br \/>\n      sk = conn-&gt;sk<br \/>\n                          lock_sock(sk)<br \/>\n                            conn-&gt;sk = NULL<br \/>\n      lock_sock(sk)<br \/>\n                          release_sock(sk)<br \/>\n                          iso_sock_kill(sk)<br \/>\n       UAF on sk deref<\/p>\n<p>Fix possible UAF by holding sk refcount in iso_conn_ready().  Also<br \/>\nrecheck after lock_sock that the socket is still valid.  Adjust locking<br \/>\nso conn-&gt;sk is cleared only under lock_sock.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: ISO: hold sk properly in iso_conn_ready<\/p>\n<p>sk deref in iso_conn_ready must be done either under conn-&gt;lock, or<br \/>\nholding a r<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-8826","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/8826","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=8826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}