From: Nils Larsch <nils@openssl.org>
Date: Thu, 22 Sep 2005 23:37:37 +0000 (+0000)
Subject: protect BN_BLINDING_invert with a write lock and BN_BLINDING_convert
X-Git-Tag: OpenSSL_0_9_8k^2~1794
X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=ce75ca04b1c7ba4166cda8099aaeda45148710f8

protect BN_BLINDING_invert with a write lock and BN_BLINDING_convert
with a read lock

Submitted by: Leandro Santi <lesanti@fiuba7504.com.ar>
---

diff --git a/crypto/rsa/rsa_eay.c b/crypto/rsa/rsa_eay.c
index 620ac5544b..56da944845 100644
--- a/crypto/rsa/rsa_eay.c
+++ b/crypto/rsa/rsa_eay.c
@@ -283,9 +283,9 @@ static int rsa_blinding_convert(BN_BLINDING *b, int local, BIGNUM *f,
 	else
 		{
 		int ret;
-		CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING);
+		CRYPTO_r_lock(CRYPTO_LOCK_RSA_BLINDING);
 		ret = BN_BLINDING_convert_ex(f, r, b, ctx);
-		CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING);
+		CRYPTO_r_unlock(CRYPTO_LOCK_RSA_BLINDING);
 		return ret;
 		}
 }
@@ -298,9 +298,9 @@ static int rsa_blinding_invert(BN_BLINDING *b, int local, BIGNUM *f,
 	else
 		{
 		int ret;
-		CRYPTO_r_lock(CRYPTO_LOCK_RSA_BLINDING);
+		CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING);
 		ret = BN_BLINDING_invert_ex(f, r, b, ctx);
-		CRYPTO_r_unlock(CRYPTO_LOCK_RSA_BLINDING);
+		CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING);
 		return ret;
 		}
 }