[dpdk-dev] [PATCH v2] crypto/openssl: fix inproper freeing of asymmetric crypto keys in rsa

[Arek Kusztal]

In case big number need to be freed, data it contains should be cleared
before especially if it is critical data like private keys.

Fixes: 3e9d6bd447fb ("crypto/openssl: add RSA and mod asym operations")

Signed-off-by: Arek Kusztal <arkadiuszx.kusz...@intel.com>
---
v2:
- removed unnecessary config lines

 drivers/crypto/openssl/rte_openssl_pmd_ops.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c 
b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index 40217cf..a307c91 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -912,14 +912,14 @@ static int openssl_set_asym_session_parameters(
                asym_session->xfrm_type = RTE_CRYPTO_ASYM_XFORM_RSA;
                break;
 err_rsa:
-               BN_free(n);
-               BN_free(e);
-               BN_free(d);
-               BN_free(p);
-               BN_free(q);
-               BN_free(dmp1);
-               BN_free(dmq1);
-               BN_free(iqmp);
+               BN_clear_free(n);
+               BN_clear_free(e);
+               BN_clear_free(d);
+               BN_clear_free(p);
+               BN_clear_free(q);
+               BN_clear_free(dmp1);
+               BN_clear_free(dmq1);
+               BN_clear_free(iqmp);
 
                return -1;
        }
-- 
2.1.0