From abd6b8004ebe2913eb475a8b8ae3bc84c925d4fa Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Thu, 13 Jun 2013 10:51:12 +0200
Subject: [PATCH] kex: Fix a double free.

---
 src/kex.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/kex.c b/src/kex.c
index e900a91a..c678731e 100644
--- a/src/kex.c
+++ b/src/kex.c
@@ -460,6 +460,7 @@ int ssh_send_kex(ssh_session session, int server_kex) {
       goto error;
     }
     ssh_string_free(str);
+    str = NULL;
   }
 
   if (buffer_add_u8(session->out_buffer, 0) < 0) {