From 5711dd8eacf9e3c97fec97389e95cc84601d3f88 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Fri, 9 Dec 2011 14:21:25 +0000
Subject: [PATCH] x86-mont.pl: fix bug in integer-only squaring path. PR: 2648

---
 crypto/bn/asm/x86-mont.pl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crypto/bn/asm/x86-mont.pl b/crypto/bn/asm/x86-mont.pl
index 5cd3cd2ed5..e8f6b05084 100755
--- a/crypto/bn/asm/x86-mont.pl
+++ b/crypto/bn/asm/x86-mont.pl
@@ -527,8 +527,10 @@ $sbit=$num;
 	&jle	(&label("sqradd"));
 
 	&mov	($carry,"edx");
-	&lea	("edx",&DWP(0,$sbit,"edx",2));
+	&add	("edx","edx");
 	&shr	($carry,31);
+	&add	("edx",$sbit);
+	&adc	($carry,0);
 &set_label("sqrlast");
 	&mov	($word,$_n0);
 	&mov	($inp,$_np);
-- 
2.25.1