Because of insufficient input validation, an overly long computer name can be used to overflow the "computer name" kernel stack buffer. This results in memory corruption which can be turned into arbitrary remote code execution.
Read SEC Consult Advisory here - https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20150519-0_KCodes_NetUSB_Kernel_Stack_Buffer_Overflow_v10.txt