spnego_sspi: fix memory leak in case *outlen is zero (#970)

diff --git a/lib/vauth/spnego_sspi.c b/lib/vauth/spnego_sspi.c
index 1222a654df8e15a0d5ac41107fba313497b913d9..f83c44632e2267d8a82ff81c34af5d46feec3e56 100644 (file)
--- a/lib/vauth/spnego_sspi.c
+++ b/lib/vauth/spnego_sspi.c
@@ -265,8 +265,10 @@ CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data,
   if(result)
     return result;
 
-  if(!*outptr || !*outlen)
+  if(!*outptr || !*outlen) {
+    free(*outptr);
     return CURLE_REMOTE_ACCESS_DENIED;
+  }
 
   return CURLE_OK;
 }