Fix a memory leak in i2d_RSA_NET on failure of ASN1_STRING_set.

Found by Coverity.
Feedback and ok tb@

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/asn1/n_pkey.c b/src/lib/libcrypto/asn1/n_pkey.c
index d2fabf6e87..6c7031677d 100644
--- a/src/lib/libcrypto/asn1/n_pkey.c
+++ b/src/lib/libcrypto/asn1/n_pkey.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: n_pkey.c,v 1.31 2017/01/29 17:49:22 beck Exp $ */
+/* $OpenBSD: n_pkey.c,v 1.32 2018/08/05 13:35:45 bcook Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -273,11 +273,11 @@ i2d_RSA_NET(const RSA *a, unsigned char **pp,
                 goto err;
         }
 
+        enckey->enckey->digest->data = zz;
         if (!ASN1_STRING_set(enckey->os, "private-key", -1)) {
                 ASN1error(ERR_R_MALLOC_FAILURE);
                 goto err;
         }
-        enckey->enckey->digest->data = zz;
         i2d_NETSCAPE_PKEY(pkey, &zz);
 
         /* Wipe the private key encoding */