[PATCH 2/9] crypto: authencesn - don't leak pointers to authenc keys

[Tudor Ambarus]

Signed-off-by: Tudor Ambarus <tudor.amba...@microchip.com>
---
 crypto/authencesn.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index 15f91dd..3bed6d1 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -69,8 +69,10 @@ static int crypto_authenc_esn_setkey(struct crypto_aead 
*authenc_esn, const u8 *
        struct crypto_authenc_keys keys;
        int err = -EINVAL;
 
-       if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
-               goto badkey;
+       if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
+               crypto_aead_set_flags(authenc_esn, CRYPTO_TFM_RES_BAD_KEY_LEN);
+               goto out;
+       }
 
        crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
        crypto_ahash_set_flags(auth, crypto_aead_get_flags(authenc_esn) &
@@ -90,11 +92,8 @@ static int crypto_authenc_esn_setkey(struct crypto_aead 
*authenc_esn, const u8 *
                                           CRYPTO_TFM_RES_MASK);
 
 out:
+       memzero_explicit(&keys, sizeof(keys));
        return err;
-
-badkey:
-       crypto_aead_set_flags(authenc_esn, CRYPTO_TFM_RES_BAD_KEY_LEN);
-       goto out;
 }
 
 static int crypto_authenc_esn_genicv_tail(struct aead_request *req,
-- 
2.9.4