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>

diff --git a/crypto/asn1/x_bignum.c b/crypto/asn1/x_bignum.c
index 66ce000827cbe6e2d7306e08ffb8dcb89c01ad0a..d2666e15daa8fb9220f8b0961a6eec39b229962a 100644 (file)
--- 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);