From: Alan Hryngle <alan.hryngle@yahoo.com>
Date: Sat, 5 Jul 2014 21:24:03 +0000 (+0100)
Subject: Return smaller of ret and f.
X-Git-Tag: OpenSSL_1_0_2-beta2~51
X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=ff5b11f547977d0419f074587bbc6417e65981f3

Return smaller of ret and f.

PR#3418.
(cherry picked from commit fdea4fff8fb058be928980600b24cf4c62ef3630)
---

diff --git a/crypto/rsa/rsa_eay.c b/crypto/rsa/rsa_eay.c
index 88ee2cb557..aa810459a1 100644
--- a/crypto/rsa/rsa_eay.c
+++ b/crypto/rsa/rsa_eay.c
@@ -459,7 +459,7 @@ static int RSA_eay_private_encrypt(int flen, const unsigned char *from,
 	if (padding == RSA_X931_PADDING)
 		{
 		BN_sub(f, rsa->n, ret);
-		if (BN_cmp(ret, f))
+		if (BN_cmp(ret, f) > 0)
 			res = f;
 		else
 			res = ret;