From 9c989aaa749d88b63bef5d5beeb3046eae62d836 Mon Sep 17 00:00:00 2001
From: Emilia Kasper <emilia@openssl.org>
Date: Mon, 31 Aug 2015 13:57:44 +0200
Subject: bntest: don't dereference the |d| array for a zero BIGNUM.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 4d04226c2ec7e7f69f6234def63631648e35e828)
---
 crypto/bn/bntest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'crypto/bn')

diff --git a/crypto/bn/bntest.c b/crypto/bn/bntest.c
index 470d5dabf1..0f8e18f396 100644
--- a/crypto/bn/bntest.c
+++ b/crypto/bn/bntest.c
@@ -516,9 +516,9 @@ int test_div_word(BIO *bp)
         do {
             BN_bntest_rand(&a, 512, -1, 0);
             BN_bntest_rand(&b, BN_BITS2, -1, 0);
-            s = b.d[0];
-        } while (!s);
+        } while (BN_is_zero(&b));
 
+        s = b.d[0];
         BN_copy(&b, &a);
         r = BN_div_word(&b, s);
 
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