tree 4d96cad9eef7f8f4eb502c3766cfa03f813460e3
parent a8348bca2944d397a528772f5c0ccb47a8b58af4
author Herbert Xu <herbert@gondor.apana.org.au> 1479713640 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> 1479798144 +0800

crypto: algif_hash - Fix result clobbering in recvmsg

Recently an init call was added to hash_recvmsg so as to reset
the hash state in case a sendmsg call was never made.

Unfortunately this ended up clobbering the result if the previous
sendmsg was done with a MSG_MORE flag.  This patch fixes it by
excluding that case when we make the init call.

Fixes: a8348bca2944 ("algif_hash - Fix NULL hash crash with shash")
Reported-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>