CVE-2022-50165

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`<br /> <br /> Commit 7a4836560a61 changes simple_write_to_buffer() with memdup_user()<br /> but it forgets to change the value to be returned that came from<br /> simple_write_to_buffer() call. It results in the following warning:<br /> <br /> warning: variable &amp;#39;rc&amp;#39; is uninitialized when used here [-Wuninitialized]<br /> return rc;<br /> ^~<br /> <br /> Remove rc variable and just return the passed in length if the<br /> memdup_user() succeeds.