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Subject[PATCH] crypto: hisilicon/hpre - rsa key should not be empty
Date
We should ensure key is not empty before we set key.

Signed-off-by: Meng Yu <yumeng18@huawei.com>
---
drivers/crypto/hisilicon/hpre/hpre_crypto.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
index 53068d2..7cf7d80 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
@@ -1093,6 +1093,9 @@ static int hpre_rsa_setpubkey(struct crypto_akcipher *tfm, const void *key,
struct hpre_ctx *ctx = akcipher_tfm_ctx(tfm);
int ret;

+ if (!key || !keylen)
+ return -EINVAL;
+
ret = crypto_akcipher_set_pub_key(ctx->rsa.soft_tfm, key, keylen);
if (ret)
return ret;
@@ -1106,6 +1109,9 @@ static int hpre_rsa_setprivkey(struct crypto_akcipher *tfm, const void *key,
struct hpre_ctx *ctx = akcipher_tfm_ctx(tfm);
int ret;

+ if (!key || !keylen)
+ return -EINVAL;
+
ret = crypto_akcipher_set_priv_key(ctx->rsa.soft_tfm, key, keylen);
if (ret)
return ret;
--
2.8.1
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