On Thu, Jun 23, 2016, Andy Lutomirski wrote:

SMP does ECB crypto on stack buffers.  This is complicated and
fragile, and it will not work if the stack is virtually allocated.

Switch to the crypto_cipher interface, which is simpler and safer.

Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <redacted>
Cc: Johan Hedberg <redacted>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-bluetooth@vger.kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 net/bluetooth/smp.c | 67 ++++++++++++++++++++++-------------------------------
 1 file changed, 28 insertions(+), 39 deletions(-)

Acked-and-tested-by: Johan Hedberg [off-list ref]

Johan