In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
firmware: arm_scmi: Fix SCMI device destroy lifetimes<\/p>\n
scmi_child_dev_find() drops the reference returned by
\ndevice_find_child() before returning the scmi_device pointer. A
\nconcurrent unregister can then release the device while the destroy path
\nis still using the returned pointer.<\/p>\n
Make the lookup helper return the device_find_child() reference and keep
\nit until scmi_device_destroy() has finished unregistering the child.<\/p>\n
Also split device_unregister() in __scmi_device_destroy() so the SCMI bus
\nID is not made reusable until after device_del() has removed the old
\nscmi_dev.N name from sysfs. This avoids a new SCMI device reusing the
\nsame ID while the old device is still registered.<\/p>\n
The final device release callback is also a possible cleanup path when
\nSCMI children are deleted by driver core recursion rather than
\n__scmi_device_destroy(). Release the SCMI bus ID from a common helper
\nused by destroy, register-failure and final-release paths, and clear
\nscmi_dev->id after freeing it so the final release cannot free the same
\nID again.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
firmware: arm_scmi: Fix SCMI device destroy lifetimes<\/p>\n
scmi_child_dev_find() drops the reference returned by
\ndevice_find_child() be<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25940","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25940","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=25940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}