REDHAT-BUG-2429583: Medium severity Linux Kernel vulnerability

In the Linux kernel, the following vulnerability has been resolved:

crypto: seqiv - Do not use req->iv after cryptoaeadencrypt

As soon as cryptoaeadencrypt is called, the underlying request may be freed by an asynchronous completion. Thus dereferencing req->iv after it returns is invalid.

Instead of checking req->iv against info, create a new variable unalignedinfo and use it for that purpose instead.