From 55e6d8cd9eac7eb2aaa4d221585e9402cf7269d5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Thu, 11 Feb 2016 10:55:07 +0100
Subject: [PATCH] Error out on missing machine type in machine configs

Commit f1a89a8 allowed parsing configs from /etc/libvirt
without validating the emulator capabilities.

Check for the presence of os->type.machine even if the
VIR_DOMAIN_DEF_PARSE_SKIP_OSTYPE_CHECKS flag is set,
otherwise the daemon can crash on carelessly crafted input
in the config directory.

https://bugzilla.redhat.com/show_bug.cgi?id=1267256
---
 src/conf/domain_conf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 0d2957b69c..acd58a1b61 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -14841,6 +14841,12 @@ virDomainDefParseXML(xmlDocPtr xml,
             goto error;
         }
         VIR_FREE(capsdata);
+    } else {
+        if (!def->os.machine) {
+            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                           _("Missing machine type"));
+            goto error;
+        }
     }
 
     /* Extract domain name */
-- 
2.39.5