{"id":7540,"date":"2026-09-04T18:49:35","date_gmt":"2026-09-04T10:49:35","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74533"},"modified":"2026-09-04T18:49:35","modified_gmt":"2026-09-04T10:49:35","slug":"cve-2026-74533","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74533","title":{"rendered":"CVE-2026-74533 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: fix r"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: ISO: fix race of kfree vs kref_get_unless_zero<\/p>\n<p>hci_conn::iso_data is accessed and modified without lock or RCU.<br \/>\nThis leads to a race<\/p>\n<p>    [Task hdev-&gt;workqueue]                 \t[Task 2]<br \/>\n    iso_recv                                    iso_conn_put(conn)<br \/>\n      conn = LOAD hcon-&gt;iso_data                  iso_conn_free(conn)<br \/>\n      iso_conn_hold_unless_zero(conn)               hcon-&gt;iso_data = NULL<br \/>\n                                                    kfree(conn)<br \/>\n        kref_get_unless_zero(&amp;conn-&gt;ref) \/* UAF *\/<\/p>\n<p>and also to races in iso_conn_add() vs. iso_conn_free().<\/p>\n<p>Fix by adding spinlock hci_conn::proto_lock and using it to guard<br \/>\nhci_conn::iso_data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: ISO: fix race of kfree vs kref_get_unless_zero<\/p>\n<p>hci_conn::iso_data is accessed and modified without lock or RCU.<br \/>\nThis le<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7540","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7540","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=7540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}