Crypto Fixes for 4.15

[Herbert Xu]

Hi Linus: 

This push fixes the following issues:

- Buffer overread in RSA.
- Potential use after free in algif_aead.
- Error path null pointer dereference in af_alg.
- Forbid combinations such as hmac(hmac(sha3)) which may crash.
- Crash in salsa20 due to incorrect API usage.


Please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git linus


Eric Biggers (5):
      crypto: rsa - fix buffer overread when stripping leading zeroes
      crypto: algif_aead - fix reference counting of null skcipher
      crypto: af_alg - fix NULL pointer dereference in
      crypto: hmac - require that the underlying hash algorithm is unkeyed
      crypto: salsa20 - fix blkcipher_walk API usage

 arch/x86/crypto/salsa20_glue.c |    7 -------
 crypto/af_alg.c                |   13 +++++++------
 crypto/algif_aead.c            |    2 +-
 crypto/hmac.c                  |    6 +++++-
 crypto/rsa_helper.c            |    2 +-
 crypto/salsa20_generic.c       |    7 -------
 crypto/shash.c                 |    5 +++--
 include/crypto/internal/hash.h |    8 ++++++++
 8 files changed, 25 insertions(+), 25 deletions(-)

Thanks,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt