commit a66d7f72 upstream.

Some of the crypto algorithms write to the initialization vector,
but no space has been allocated for it. This clobbers adjacent memory.
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>