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[stable,3.10.y,16/18] crypto: shash - Fix has_key setting

Message ID 1477578591-28924-17-git-send-email-aryabinin@virtuozzo.com (mailing list archive)
State Not Applicable
Delegated to: Herbert Xu
Headers show

Commit Message

Andrey Ryabinin Oct. 27, 2016, 2:29 p.m. UTC 
From: Herbert Xu <herbert@gondor.apana.org.au>

commit 00420a65fa2beb3206090ead86942484df2275f3 upstream.

The has_key logic is wrong for shash algorithms as they always
have a setkey function.  So we should instead be testing against
shash_no_setkey.

Fixes: a5596d633278 ("crypto: hash - Add crypto_ahash_has_setkey")
Cc: stable@vger.kernel.org
Reported-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
---
 crypto/shash.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
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Patch

diff --git a/crypto/shash.c b/crypto/shash.c
index 8e4256a..ac4d763 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -353,11 +353,10 @@  int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
 	crt->final = shash_async_final;
 	crt->finup = shash_async_finup;
 	crt->digest = shash_async_digest;
+	crt->setkey = shash_async_setkey;
+
+	crt->has_setkey = alg->setkey != shash_no_setkey;
 
-	if (alg->setkey) {
-		crt->setkey = shash_async_setkey;
-		crt->has_setkey = true;
-	}
 	if (alg->export)
 		crt->export = shash_async_export;
 	if (alg->import)