From 1499f09f5b1a059dcbdd14881a94a19dfa7b13b9 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Tue, 4 Jun 2019 23:34:50 +0200
Subject: [PATCH] fix use-after-free

---
 src/ats/plugin_ats2_simple.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ats/plugin_ats2_simple.c b/src/ats/plugin_ats2_simple.c
index 7d5aebdfa..14bd2b99d 100644
--- a/src/ats/plugin_ats2_simple.c
+++ b/src/ats/plugin_ats2_simple.c
@@ -520,7 +520,6 @@ watch_cb (void *cls,
   hello->nt = nt;
   hello->peer = p;
   memcpy (&hello[1], addr, alen);
-  GNUNET_free (addr);
   GNUNET_CONTAINER_DLL_insert (p->h_head, p->h_tail, hello);
   /* check if sh for this HELLO already exists */
   for (struct GNUNET_ATS_SessionHandle *sh = p->sh_head; NULL != sh;
@@ -533,6 +532,7 @@ watch_cb (void *cls,
     hello->sh = sh;
     break;
   }
+  GNUNET_free (addr);
   if (NULL == p->task)
     p->task = GNUNET_SCHEDULER_add_now (&suggest_start_cb, p);
 }
-- 
2.25.1