From 2dc1cf19dbaf648662fbf3c810db65ddcf5d0444 Mon Sep 17 00:00:00 2001
From: Jim Fehlig <jfehlig@suse.com>
Date: Wed, 15 Feb 2017 10:45:27 -0700
Subject: [PATCH] libxl: fix potential double free in
 libxlDriverGetDom0MaxmemConf

Commit 4ab0c959 fixed a memory leak in libxlDriverGetDom0MaxmemConf
but introduced a potential double free of mem_tokens

*** Error in `/usr/sbin/libvirtd': double free or corruption (out):
    0x00007fffc808cfd0 ***

Avoid double free by setting mem_tokens to NULL after calling
virStringListFree.
---
 src/libxl/libxl_conf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index f5b788b50f..4bab651b33 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -1623,6 +1623,7 @@ libxlDriverGetDom0MaxmemConf(libxlDriverConfigPtr cfg,
             }
         }
         virStringListFree(mem_tokens);
+        mem_tokens = NULL;
     }
 
  physmem:
-- 
2.47.2