cloud-init/SOURCES/ci-fix-strict-disable-in-ds-identify-on-no-datasources-.patch
2025-07-17 07:23:14 +00:00

90 lines
3.7 KiB
Diff

From e095bbfa939a9ec61d4448a6f16370dd656dd30a Mon Sep 17 00:00:00 2001
From: Chad Smith <chad.smith@canonical.com>
Date: Tue, 24 Jun 2025 09:12:52 -0600
Subject: [PATCH 2/2] fix: strict disable in ds-identify on no datasources
found
RH-Author: Ani Sinha <anisinha@redhat.com>
RH-MergeRequest: 163: CVE-2024-6174: fix: Don't attempt to identify non-x86 OpenStack instances
RH-Jira: RHEL-100606
RH-Acked-by: xiachen <xiachen@redhat.com>
RH-Commit: [2/2] 01f55ab3c476a47ca2f2d2ace4b81b9a8a17e5d9
Take the CVE-2024-6174 strict detection fix one step further.
Commit 8c3ae1b took a step to ignore DS_MAYBE datasource discovery.
But, if no datasources are met the DS_FOUND conditions, ds-identify was
still leaving cloud-init enabled. This resulted in cloud-init python
code attempting to discover all datasources later in boot based on
the default datasource_list.
ds-identify will now assert that at least one datasource is found. If
no datasources, ds-identify will exit 1 which disables cloud-init boot
stages and results in no boot configuration operations from cloud-init.
OpenStack images which cannot identify a valid datasource with DMI-data
or kernel command line ci.ds=OpenStack parameter will need to either:
- provide image-based configuration in either /etc/cloud/cloud.cfg.* to set
datasource_list: [ OpenStack ]
- provide --config-drive true to openstack server create
- attach a nocloud disk labelled CIDATA containing user-data and
meta-data files
CVE-2024-6174
LP: #2069607
(cherry picked from commit e3f42adc2674a38fb29e414cfbf96f884934b2d2)
Signed-off-by: Ani Sinha <anisinha@redhat.com>
---
tests/unittests/test_ds_identify.py | 6 ++++--
tools/ds-identify | 2 +-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/tests/unittests/test_ds_identify.py b/tests/unittests/test_ds_identify.py
index c4f0115a8..3c8976167 100644
--- a/tests/unittests/test_ds_identify.py
+++ b/tests/unittests/test_ds_identify.py
@@ -60,7 +60,7 @@ BLKID_UEFI_UBUNTU = [
POLICY_FOUND_ONLY = "search,found=all,maybe=none,notfound=disabled"
POLICY_FOUND_OR_MAYBE = "search,found=all,maybe=none,notfound=disabled"
DI_DEFAULT_POLICY = "search,found=all,maybe=none,notfound=disabled"
-DI_DEFAULT_POLICY_NO_DMI = "search,found=all,maybe=none,notfound=enabled"
+DI_DEFAULT_POLICY_NO_DMI = "search,found=all,maybe=none,notfound=disabled"
DI_EC2_STRICT_ID_DEFAULT = "true"
OVF_MATCH_STRING = "http://schemas.dmtf.org/ovf/environment/1"
@@ -584,7 +584,7 @@ class TestDsIdentify(DsIdentifyBase):
data.update(
{
"policy_dmi": POLICY_FOUND_OR_MAYBE,
- "policy_no_dmi": POLICY_FOUND_OR_MAYBE,
+ "policy_no_dmi": DI_DEFAULT_POLICY_NO_DMI,
}
)
@@ -597,6 +597,8 @@ class TestDsIdentify(DsIdentifyBase):
(_, _, err, _, _) = self._check_via_dict(data, RC_NOT_FOUND)
self.assertIn("check for 'OpenStack' returned maybe", err)
self.assertIn("No ds found", err)
+ self.assertIn("Disabled cloud-init", err)
+ self.assertIn("returning 1", err)
def test_default_ovf_is_found(self):
"""OVF is identified found when ovf/ovf-env.xml seed file exists."""
diff --git a/tools/ds-identify b/tools/ds-identify
index 87b320f56..a293ecf3e 100755
--- a/tools/ds-identify
+++ b/tools/ds-identify
@@ -95,7 +95,7 @@ DI_MAIN=${DI_MAIN:-main}
DI_BLKID_EXPORT_OUT=""
DI_GEOM_LABEL_STATUS_OUT=""
DI_DEFAULT_POLICY="search,found=all,maybe=none,notfound=${DI_DISABLED}"
-DI_DEFAULT_POLICY_NO_DMI="search,found=all,maybe=none,notfound=${DI_ENABLED}"
+DI_DEFAULT_POLICY_NO_DMI="search,found=all,maybe=none,notfound=${DI_DISABLED}"
DI_DMI_BOARD_NAME=""
DI_DMI_CHASSIS_ASSET_TAG=""
DI_DMI_PRODUCT_NAME=""
--
2.39.3