In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
hwmon: (corsair-cpro) Create debugfs entries after hwmon registration<\/p>\n
ccp_debugfs_init() registers debugfs files whose private data is the devm
\nallocated ccp. It runs before hwmon_device_register_with_info(), so when
\nthat registration fails, ccp_probe() returns with the files still in
\nplace. The HID core then frees ccp, and ccp_remove() is not called for a
\nfailed probe, so nothing removes them later either. Reading one of the
\nfiles dereferences the freed pointer.<\/p>\n
Create the debugfs entries only after the hwmon device has been
\nregistered, so no failing path can leave them behind.<\/p>\n
The two version queries stay where they are. They send USB commands
\nwithout holding ccp->mutex, which is only safe as long as nothing else
\ncan call send_usb_cmd(); once the hwmon device is registered its
\ncallbacks can do so concurrently. Only the debugfs creation moves, and
\nit is told which queries succeeded.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
hwmon: (corsair-cpro) Create debugfs entries after hwmon registration<\/p>\n
ccp_debugfs_init() registers debugfs files whose private dat<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29124","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29124","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=29124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}