path: root/crypto
diff options
authorEric Biggers <>2018-12-04 16:46:54 -0800
committerHerbert Xu <>2018-12-13 18:24:56 +0800
commitb299362ee48db8eab34208302ee9730ff9d6091c (patch)
treeee526e1b701dc4cd5c943231ad633f2a70b2a749 /crypto
parent2fe55987b2624a86a5c709a8df65d4de2608dc07 (diff)
crypto: adiantum - propagate CRYPTO_ALG_ASYNC flag to instance
If the stream cipher implementation is asynchronous, then the Adiantum instance must be flagged as asynchronous as well. Otherwise someone asking for a synchronous algorithm can get an asynchronous algorithm. There are no asynchronous xchacha12 or xchacha20 implementations yet which makes this largely a theoretical issue, but it should be fixed. Fixes: 059c2a4d8e16 ("crypto: adiantum - add Adiantum support") Signed-off-by: Eric Biggers <> Signed-off-by: Herbert Xu <>
Diffstat (limited to 'crypto')
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
index 2dfcf12fd452..ca27e0dc2958 100644
--- a/crypto/adiantum.c
+++ b/crypto/adiantum.c
@@ -590,6 +590,8 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
goto out_drop_hash;
+ inst->alg.base.cra_flags = streamcipher_alg->base.cra_flags &
inst->alg.base.cra_blocksize = BLOCKCIPHER_BLOCK_SIZE;
inst->alg.base.cra_ctxsize = sizeof(struct adiantum_tfm_ctx);
inst->alg.base.cra_alignmask = streamcipher_alg->base.cra_alignmask |