diff options
| -rw-r--r-- | crypto/chacha20poly1305.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c index b4b5a7198d84..27df9e1eb058 100644 --- a/crypto/chacha20poly1305.c +++ b/crypto/chacha20poly1305.c @@ -375,6 +375,7 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb, struct aead_instance *inst; struct chachapoly_instance_ctx *ctx; struct skcipher_alg_common *chacha; + const char *poly_name; int err; if (ivsize > CHACHAPOLY_IV_SIZE) @@ -396,9 +397,15 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb, goto err_free_inst; chacha = crypto_spawn_skcipher_alg_common(&ctx->chacha); + poly_name = crypto_attr_alg_name(tb[2]); + if (IS_ERR(poly_name)) { + err = PTR_ERR(poly_name); + goto err_free_inst; + } + err = -EINVAL; - if (strcmp(crypto_attr_alg_name(tb[2]), "poly1305") && - strcmp(crypto_attr_alg_name(tb[2]), "poly1305-generic")) + if (strcmp(poly_name, "poly1305") && + strcmp(poly_name, "poly1305-generic")) goto err_free_inst; /* Need 16-byte IV size, including Initial Block Counter value */ if (chacha->ivsize != CHACHA_IV_SIZE) |