[PATCH 0/2] fix authenc() kernel crash

["Stephan Müller" <smueller@chronox.de>]

Hi Herbert,

The two patches together fix a kernel crash that can be triggered via
AF_ALG when using authenc() with zero plaintext.

The changes are also tested to verify that the hashing on null data
is still supported.

I suspect that the vulnerability fixed with patch 1 is present in
abklcipher that was used before the switch to skcipher. Thus, I would
suspect in older kernels that this vulnerability is still present.
Could you please provide guidance on how to address that issue in such
older kernels?

Stephan Mueller (2):
  crypto: skcipher - noop for enc/dec with NULL data
  crypto: shash - no kmap of zero SG

 crypto/shash.c            | 4 +++-
 include/crypto/skcipher.h | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

-- 
2.13.5