Hi,

On Wed, 2017-08-16 at 14:18 +0200, Stephan Mueller wrote:

Am Mittwoch, 16. August 2017, 13:19:48 CEST schrieb Ryder Lee:

Hi Ryder,

quoted

Currently, empty messages are not supported in GCM mode, hence add
a check to prevent producing incorrect results.

In case the caller would provide empty messages, would there be just wrong 
data or a real problem? Note, unprivileged user space can make such requests.

If there would be a real problem (like crash), this should also go to stable.

Ciao
Stephan

This does not cause any problem and it just returns a wrong result. 

Ryder