From a7e974c7be90e2c9673e2ce6215a70f734eb8ad4 Mon Sep 17 00:00:00 2001
From: mrpre <mrpre@163.com>
Date: Fri, 28 Aug 2015 16:12:51 +0800
Subject: [PATCH] check bn_new return value

Slightly modified from the original PR.
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
---
 crypto/asn1/x_bignum.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/asn1/x_bignum.c b/crypto/asn1/x_bignum.c
index 66ce000827..d2666e15da 100644
--- a/crypto/asn1/x_bignum.c
+++ b/crypto/asn1/x_bignum.c
@@ -163,8 +163,8 @@ static int bn_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
 {
     BIGNUM *bn;
 
-    if (!*pval)
-        bn_new(pval, it);
+    if (*pval == NULL && !bn_new(pval, it))
+        return 0;
     bn = (BIGNUM *)*pval;
     if (!BN_bin2bn(cont, len, bn)) {
         bn_free(pval, it);
-- 
2.25.1