File 0118-9pfs-adjust-the-order-of-resource-c.patch of Package qemu.12243

From 809afbf8e17075a4b8ff1058a342369ad52179bb Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Wed, 23 Nov 2016 13:53:34 +0100
Subject: [PATCH] 9pfs: adjust the order of resource cleanup in device
 unrealize

Unrealize should undo things that were set during realize in
reverse order. So should do in the error path in realize.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
(cherry picked from commit 4774718e5c194026ba5ee7a28d9be49be3080e42)
[BR: CVE-2016-9913 BSC#1014110]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/9pfs/9p.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index e7c580c03e..ef717b0b1b 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3480,8 +3480,8 @@ int v9fs_device_realize_common(V9fsState *s, Error **errp)
     rc = 0;
 out:
     if (rc) {
-        g_free(s->ctx.fs_root);
         g_free(s->tag);
+        g_free(s->ctx.fs_root);
         v9fs_path_free(&path);
     }
     return rc;
@@ -3489,8 +3489,8 @@ out:
 
 void v9fs_device_unrealize_common(V9fsState *s, Error **errp)
 {
-    g_free(s->ctx.fs_root);
     g_free(s->tag);
+    g_free(s->ctx.fs_root);
 }
 
 static void __attribute__((__constructor__)) v9fs_set_fd_limit(void)