CVE-2022-49821

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mISDN: fix possible memory leak in mISDN_dsp_element_register()<br /> <br /> Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device&amp;#39;s<br /> bus_id string array"), the name of device is allocated dynamically,<br /> use put_device() to give up the reference, so that the name can be<br /> freed in kobject_cleanup() when the refcount is 0.<br /> <br /> The &amp;#39;entry&amp;#39; is going to be freed in mISDN_dsp_dev_release(), so the<br /> kfree() is removed. list_del() is called in mISDN_dsp_dev_release(),<br /> so it need be initialized.