From 9df88205ba69b286ee14b3ad7cb02c053526001d Mon Sep 17 00:00:00 2001
From: Nicolas Williams <nico@twosigma.com>
Date: Thu, 14 Apr 2016 10:27:03 -0500
Subject: [PATCH] Fix double-free in lib/hx509/crypto.c

---
 lib/hx509/crypto.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/hx509/crypto.c b/lib/hx509/crypto.c
index b20980325..1949588a3 100644
--- a/lib/hx509/crypto.c
+++ b/lib/hx509/crypto.c
@@ -438,7 +438,7 @@ ecdsa_create_signature(hx509_context context,
 	ret = set_digest_alg(signatureAlgorithm, sig_oid, "\x05\x00", 2);
 	if (ret) {
 	    hx509_clear_error_string(context);
-	    goto error;
+	    return ret;
 	}
     }
 
@@ -448,11 +448,8 @@ ecdsa_create_signature(hx509_context context,
 				  data,
 				  NULL,
 				  &indata);
-    if (ret) {
-	if (signatureAlgorithm)
-	    free_AlgorithmIdentifier(signatureAlgorithm);
+    if (ret)
 	goto error;
-    }
 
     sig->length = ECDSA_size(signer->private_key.ecdsa);
     sig->data = malloc(sig->length);