Recent changes from 0.9.6-stable.

3 files changed, 13 insertions, 8 deletions

diff --git a/crypto/rsa/rsa.h b/crypto/rsa/rsa.h
index 47981457ec..7c5ba1b7ba 100644
--- a/crypto/rsa/rsa.h
+++ b/crypto/rsa/rsa.h
@@ -156,11 +156,6 @@ struct rsa_st
 #define RSA_FLAG_CACHE_PUBLIC		0x02
 #define RSA_FLAG_CACHE_PRIVATE		0x04
 #define RSA_FLAG_BLINDING		0x08
-#define RSA_FLAG_NO_BLINDING		0x80 /* new with 0.9.6j and 0.9.7b; the built-in
-                                              * RSA implementation now uses blinding by
-                                              * default (ignoring RSA_FLAG_BLINDING),
-                                              * but other engines might not need it
-                                              */
 #define RSA_FLAG_THREAD_SAFE		0x10
 /* This flag means the private key operations will be handled by rsa_mod_exp
  * and that they do not depend on the private key components being present:
@@ -173,7 +168,11 @@ struct rsa_st
  */
 #define RSA_FLAG_SIGN_VER		0x40
 
-#define RSA_FLAG_NO_BLINDING		0x80
+#define RSA_FLAG_NO_BLINDING		0x80 /* new with 0.9.6j and 0.9.7b; the built-in
+                                              * RSA implementation now uses blinding by
+                                              * default (ignoring RSA_FLAG_BLINDING),
+                                              * but other engines might not need it
+                                              */
 
 #define RSA_PKCS1_PADDING	1
 #define RSA_SSLV23_PADDING	2
diff --git a/crypto/rsa/rsa_eay.c b/crypto/rsa/rsa_eay.c
index 0ba50b8e87..4480b2516e 100644
--- a/crypto/rsa/rsa_eay.c
+++ b/crypto/rsa/rsa_eay.c
@@ -491,6 +491,8 @@ err:
 	if (ctx != NULL) BN_CTX_free(ctx);
 	BN_clear_free(&f);
 	BN_clear_free(&ret);
+	if (local_blinding)
+		BN_BLINDING_free(blinding);
 	if (buf != NULL)
 		{
 		OPENSSL_cleanse(buf,num);
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index e1419145a7..ea48087aed 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -313,7 +313,7 @@ void RSA_blinding_off(RSA *rsa)
 
 int RSA_blinding_on(RSA *rsa, BN_CTX *p_ctx)
 	{
-	BIGNUM *A,*Ai;
+	BIGNUM *A,*Ai = NULL;
 	BN_CTX *ctx;
 	int ret=0;
 
@@ -324,8 +324,12 @@ int RSA_blinding_on(RSA *rsa, BN_CTX *p_ctx)
 	else
 		ctx=p_ctx;
 
+	/* XXXXX: Shouldn't this be RSA_blinding_off(rsa)? */
 	if (rsa->blinding != NULL)
+		{
 		BN_BLINDING_free(rsa->blinding);
+		rsa->blinding = NULL;
+		}
 
 	/* NB: similar code appears in setup_blinding (rsa_eay.c);
 	 * this should be placed in a new function of its own, but for reasons
@@ -354,9 +358,9 @@ int RSA_blinding_on(RSA *rsa, BN_CTX *p_ctx)
 	rsa->blinding->thread_id = CRYPTO_thread_id();
 	rsa->flags |= RSA_FLAG_BLINDING;
 	rsa->flags &= ~RSA_FLAG_NO_BLINDING;
-	BN_free(Ai);
 	ret=1;
 err:
+	if (Ai != NULL) BN_free(Ai);
 	BN_CTX_end(ctx);
 	if (ctx != p_ctx) BN_CTX_free(ctx);
 	return(ret);