[PATCH net] rxrpc: Fix an assertion in rxrpc_read()

[David Miller]

From: David Howells <dhowells at redhat.com>
Date: Fri, 24 Feb 2017 12:33:09 +0000

> From: Marc Dionne <marc.dionne at auristor.com>
> 
> In the rxrpc_read() function, which allows a user to read the contents of a
> key, we miscalculate the expected length of an encoded rxkad token by not
> taking into account the key length.  However, the data is stored later
> anyway with an ENCODE_DATA() call - and an assertion failure then ensues
> when the lengths are checked at the end.
> 
> Fix this by including the key length in the token size estimation.
> 
> The following assertion is produced:
 ...
> Signed-off-by: Marc Dionne <marc.dionne at auristor.com>
> Signed-off-by: David Howells <dhowells at redhat.com>

Applied.