{"id":33359,"date":"2026-10-06T20:31:51","date_gmt":"2026-10-06T12:31:51","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98290"},"modified":"2026-10-06T20:31:51","modified_gmt":"2026-10-06T12:31:51","slug":"cve-2026-98290","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98290","title":{"rendered":"CVE-2026-98290 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: av"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: RFCOMM: avoid socket lock inversion in listener cleanup<\/p>\n<p>rfcomm_sock_cleanup_listen() closes unaccepted child sockets through<br \/>\nrfcomm_sock_close(), which takes the child socket lock before<br \/>\nrfcomm_dlc_close() acquires rfcomm_mutex. The RFCOMM worker takes these<br \/>\nlocks in reverse order while handling connections and DLC state changes,<br \/>\nso lockdep reports a possible deadlock.<\/p>\n<p>Close dequeued children without taking their socket lock. The accept queue<br \/>\nowns a reference to each child, and bt_accept_dequeue() locks the child<br \/>\nwhile unlinking it and clearing its parent pointer.<\/p>\n<p>Dropping the child lock makes it important to prevent a concurrent<br \/>\nrfcomm_connect_ind() from enqueueing a new child after cleanup observes an<br \/>\nempty queue. Set a listening socket to BT_CLOSED while its lock is still<br \/>\nheld, before dropping the lock and draining the queue. The state check in<br \/>\nrfcomm_connect_ind() then rejects new children once cleanup starts.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: RFCOMM: avoid socket lock inversion in listener cleanup<\/p>\n<p>rfcomm_sock_cleanup_listen() closes unaccepted child sockets th<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33359","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33359","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=33359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}