From: inoguchi <inoguchi@openbsd.org>
Date: Thu, 20 Jan 2022 10:53:33 +0000 (+0000)
Subject: Add check for BN functions return value
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=4946efcc7df1700273b7581726f8efd498bf6fd1;p=openbsd

Add check for BN functions return value

CID 21665 24835

comment from jsing@ and tb@
ok jsing@ millert@ tb@
---

diff --git a/lib/libcrypto/bn/bn_print.c b/lib/libcrypto/bn/bn_print.c
index d849b860f90..9b5c7533160 100644
--- a/lib/libcrypto/bn/bn_print.c
+++ b/lib/libcrypto/bn/bn_print.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_print.c,v 1.32 2021/08/31 11:19:19 tb Exp $ */
+/* $OpenBSD: bn_print.c,v 1.33 2022/01/20 10:53:33 inoguchi Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -310,8 +310,10 @@ BN_dec2bn(BIGNUM **bn, const char *a)
 		l += *a - '0';
 		a++;
 		if (++j == BN_DEC_NUM) {
-			BN_mul_word(ret, BN_DEC_CONV);
-			BN_add_word(ret, l);
+			if (!BN_mul_word(ret, BN_DEC_CONV))
+				goto err;
+			if (!BN_add_word(ret, l))
+				goto err;
 			l = 0;
 			j = 0;
 		}