tree c2304ce35cb7d2bec45f3f257c4194ab2278b3a9
parent 271817a3e92c0455bda5856d87eca244ad67d3a2
author Herbert Xu <herbert@gondor.apana.org.au> 1446369079 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> 1446457710 +0800

crypto: algif_hash - Only export and import on sockets with data

The hash_accept call fails to work on sockets that have not received
any data.  For some algorithm implementations it may cause crashes.

This patch fixes this by ensuring that we only export and import on
sockets that have received data.

Cc: stable@vger.kernel.org
Reported-by: Harsh Jain <harshjain.prof@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Stephan Mueller <smueller@chronox.de>