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

[Arek Kusztal <arkadiuszx.kusztal@intel.com>]

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.kusztal@intel.com>
---
 config/common_base                           |  4 ++--
 drivers/crypto/openssl/rte_openssl_pmd_ops.c | 16 ++++++++--------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/config/common_base b/config/common_base
index 6b96e0e..a3d8e17 100644
--- a/config/common_base
+++ b/config/common_base
@@ -573,7 +573,7 @@ CONFIG_RTE_LIBRTE_PMD_OCTEONTX_CRYPTO=y
 #
 CONFIG_RTE_LIBRTE_PMD_QAT=y
 CONFIG_RTE_LIBRTE_PMD_QAT_SYM=n
-CONFIG_RTE_LIBRTE_PMD_QAT_ASYM=n
+CONFIG_RTE_LIBRTE_PMD_QAT_ASYM=y
 #
 # Max. number of QuickAssist devices, which can be detected and attached
 #
@@ -597,7 +597,7 @@ CONFIG_RTE_LIBRTE_PMD_AESNI_MB=n
 #
 # Compile PMD for Software backed device
 #
-CONFIG_RTE_LIBRTE_PMD_OPENSSL=n
+CONFIG_RTE_LIBRTE_PMD_OPENSSL=y
 
 #
 # Compile PMD for AESNI GCM device
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