In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
Bluetooth: MGMT: free the HCI command when it is cancelled<\/p>\n
mgmt_hci_cmd_sync() queues the pending command with a NULL destroy
\ncallback, so it is only freed if send_hci_cmd_sync() runs. A cancelled
\nentry is leaked, as _hci_cmd_sync_cancel_entry() does not release
\nentry->data when there is no destroy callback, and hci_cmd_sync_clear()
\ncancels every pending entry when the controller is unregistered. Nothing
\nelse reclaims it either: mgmt_pending_new() does not put the command on
\nhdev->mgmt_pending.<\/p>\n
The leak also pins the socket reference taken by mgmt_pending_new(), so
\nthe mgmt socket is never released.<\/p>\n
Free the command from a destroy callback. The now-empty done label is
\nreplaced by a direct return.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
Bluetooth: MGMT: free the HCI command when it is cancelled<\/p>\n
mgmt_hci_cmd_sync() queues the pending command with a NULL destroy
\ncall<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25661","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25661","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=25661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}