Plug a memory leak in x509_name_encode()

This is nearly identical to a leak fixed by miod 10 years ago in
x509_name_canon() but was missed in r1.30. This entire file needs
a metric ton of bleach, but my head currently spins too much for
tackling this, so go with the cheap one-liner.

From Niels Dossche

1 files changed, 4 insertions, 2 deletions

diff --git a/src/lib/libcrypto/asn1/x_name.c b/src/lib/libcrypto/asn1/x_name.c
index 7bacd83340..c60714b74f 100644
--- a/src/lib/libcrypto/asn1/x_name.c
+++ b/src/lib/libcrypto/asn1/x_name.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x_name.c,v 1.44 2024/07/08 14:48:49 beck Exp $ */
+/* $OpenBSD: x_name.c,v 1.45 2025/03/20 09:41:47 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -414,8 +414,10 @@ x509_name_encode(X509_NAME *a)
                         if (!entries)
                                 goto memerr;
                         if (!sk_STACK_OF_X509_NAME_ENTRY_push(intname.s,
-                            entries))
+                            entries)) {
+                                sk_X509_NAME_ENTRY_free(entries);
                                 goto memerr;
+                        }
                         set = entry->set;
                 }
                 if (entries == NULL /* if entry->set is bogusly -1 */ ||