{"id":5453,"date":"2026-09-04T18:47:50","date_gmt":"2026-09-04T10:47:50","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68389"},"modified":"2026-09-04T18:47:50","modified_gmt":"2026-09-04T10:47:50","slug":"cve-2026-68389","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68389","title":{"rendered":"CVE-2026-68389 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: C"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: hci_qca: Clear memdump state on invalid dump size<\/p>\n<p>qca_controller_memdump() allocates qca-&gt;qca_memdump before processing<br \/>\nthe first dump packet. For a sequence-zero packet it then disables IBS,<br \/>\nmarks memdump collection active, and reads the advertised dump size.<\/p>\n<p>If the controller reports a zero dump size, the error path frees the<br \/>\nlocal qca_memdump object and returns without clearing qca-&gt;qca_memdump<br \/>\nor undoing the collection state. A later memdump work item initializes<br \/>\nits local pointer from qca-&gt;qca_memdump and skips allocation when that<br \/>\npointer is non-NULL, so it can operate on freed memory. The stale<br \/>\ncollection and IBS-disabled flags can also leave waiters or later<br \/>\ntransmit handling blocked behind an aborted dump.<\/p>\n<p>Clear the saved pointer and memdump state before returning from the<br \/>\ninvalid-size path, matching the cleanup used when hci_devcd_init() fails.<\/p>\n<p>A static analysis checker reported the stale memdump state, and manual<br \/>\nsource review confirmed the invalid-size failure path.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: hci_qca: Clear memdump state on invalid dump size<\/p>\n<p>qca_controller_memdump() allocates qca-&gt;qca_memdump before processing<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-5453","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/5453","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=5453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}