kernel: net: ch9200: fix uninitialised access during mii_nway_restart

In the Linux kernel, the following vulnerability has been resolved: net: ch9200: fix uninitialised access during miinwayrestart In miinwayrestart the code attempts to call mii-mdioread which is ch9200mdioread. ch9200mdioread utilises a local buffer called "buff", which is initialised with...