From cea9695bcfd157926670db57ba2495e1e3940730 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sat, 21 Apr 2007 21:32:31 +0000
Subject: Daniel Black filed bug #1704675
 (http://curl.haxx.se/bug/view.cgi?id=1704675) identifying a double-free
 problem in the SSL-dealing layer, telling GnuTLS to free NULL credentials on
 closedown after a failure and a bad #ifdef for NSS when closing down SSL.

---
 lib/gtls.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/gtls.c b/lib/gtls.c
index 3def5d998..73461b9cc 100644
--- a/lib/gtls.c
+++ b/lib/gtls.c
@@ -502,7 +502,8 @@ static void close_one(struct connectdata *conn,
     gnutls_bye(conn->ssl[index].session, GNUTLS_SHUT_RDWR);
     gnutls_deinit(conn->ssl[index].session);
   }
-  gnutls_certificate_free_credentials(conn->ssl[index].cred);
+  if(conn->ssl[index].cred)
+    gnutls_certificate_free_credentials(conn->ssl[index].cred);
 }
 
 void Curl_gtls_close(struct connectdata *conn)
-- 
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