In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
Bluetooth: hci_sync: free the advertising instance on the failure and cancel paths<\/p>\n
adv_timeout_expire() hands a kmalloc()ed instance byte to
\nhci_cmd_sync_queue() with a NULL destroy callback, and only
\nadv_timeout_expire_sync() frees it. That leaks on two paths:<\/p>\n
– the return value is not checked, and hci_cmd_sync_queue() does not
\n take ownership when it fails (-ENETDOWN, -ENODEV, -ENOMEM);<\/p>\n
– a cancelled entry is not released, as _hci_cmd_sync_cancel_entry()
\n does not free entry->data when there is no destroy callback.
\n hci_cmd_sync_clear() cancels every pending entry when the controller
\n is unregistered.<\/p>\n
Free the buffer from a destroy callback, and in the caller when the entry
\ncould not be queued at all.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
Bluetooth: hci_sync: free the advertising instance on the failure and cancel paths<\/p>\n
adv_timeout_expire() hands a kmalloc()ed instan<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25663","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25663","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=25663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}