From: Andy Polyakov <appro@openssl.org>
Date: Mon, 9 Feb 2015 14:54:58 +0000 (+0100)
Subject: bn/bn_add.c: fix dead code elimination that went bad.
X-Git-Tag: OpenSSL_1_1_0-pre1~1671
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c2cfc956e5ef2de480cded493b88926c7f29be18;p=oweals%2Fopenssl.git

bn/bn_add.c: fix dead code elimination that went bad.

Reviewed-by: Matt Caswell <matt@openssl.org>
---

diff --git a/crypto/bn/bn_add.c b/crypto/bn/bn_add.c
index e09451d88b..57e1cdac16 100644
--- a/crypto/bn/bn_add.c
+++ b/crypto/bn/bn_add.c
@@ -222,7 +222,7 @@ int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
                 break;
         }
     }
-    memcpy(rp, ap, sizeof(*rp) * (max - i));
+    memcpy(rp, ap, sizeof(*rp) * dif);
 
     r->top = max;
     r->neg = 0;