From e3e8a55c92552d2f794ac4baaf47c56b28f4f523 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Sat, 26 Dec 2015 02:20:28 +0100
Subject: [PATCH] core: forbid 'lost+found' as VM name

When /var/lib/qubes/appvms is a mount point of ext4 filesystem, there
will be already 'lost+found' directory. Avoid this conflict.

Fixes QubesOS/qubes-issues#1440
---
 core-modules/000QubesVm.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core-modules/000QubesVm.py b/core-modules/000QubesVm.py
index f72b51b2..fc15dde6 100644
--- a/core-modules/000QubesVm.py
+++ b/core-modules/000QubesVm.py
@@ -566,6 +566,10 @@ class QubesVm(object):
             return False
         if len(name) > 31:
             return False
+        if name == 'lost+found':
+            # avoid conflict when /var/lib/qubes/appvms is mounted on
+            # separate partition
+            return False
         return re.match(r"^[a-zA-Z][a-zA-Z0-9_.-]*$", name) is not None
 
     def pre_rename(self, new_name):