Input validation

In Epson iProjection v2.30, the driver file EMPNSAU.sys allows local users to cause a denial of service BSOD via crafted input to the virtual audio device driver with IOCTL 0x9C402402, 0x9C402406, or 0x9C40240A. \Device\EMPNSAUIO and \DosDevices\EMPNSAU are similarly affected...