XCP-ng 8.2 updates announcements and testing

olivierlambert

Tested on my EPYC host, no issue at all

Danp

Installed yesterday on my R620; no issues experienced thus far.

Andrew

@stormi I have had the updates running for a day on a few machines.

JeffBerntsen

I have it running on my test servers, an HP MicroServer and a ProLiant DL165 G7. No problems so far.

stormi

Thanks for your tests!

Update published: https://xcp-ng.org/blog/2023/10/12/october-2023-security-update/

olivierlambert

\o/ well done, thanks everyone!

stormi

New security update candidates

As promised in the previous security update, here's a new one which goes further, for better defence-in-depth.

Security updates

Xen, XAPI and all its components, sm, libfuse, e2fsprogs: various patches to either deprivilege any component which uses libfsimage, or remove its use altogether. The previous security update fix the urgent flaws described in XSA-443, and this update takes further measures as defence-in-depth.
xs-openssl: rebased on a more recent release from RHEL/CentOS, which fixes various CVEs
kernel: nothing to declare. We just rebuilt it after syncing with XenServer's latest hotfix, but there are no source code changes.

Test on XCP-ng 8.2

yum clean metadata --enablerepo=xcp-ng-testing
yum update --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

If you are a user of XOSTOR, do not install this update candidate. A linstor-compatible version of the sm update is still being prepared.

Versions

blktap: 3.37.4-2.1.xcpng8.2
device-mapper-multipath*: 0.4.9-136.xcpng8.2
e2fsprogs*: 1.47.0-1.1.xcpng8.2
forkexecd: 1.18.3-3.1.xcpng8.2
fuse-libs (added): 2.9.2-10.xcpng8.2
gpumon: 0.18.0-11.1.xcpng8.2
kernel: 4.19.19-7.0.18.1.xcpng8.2
message-switch: 1.23.2-10.1.xcpng8.2
rrd2csv: 1.2.6-8.1.xcpng8.2
rrdd-plugins: 1.10.9-5.1.xcpng8.2
sm: 2.30.8-7.1.xcpng8.2
sm-cli: 0.23.0-54.1.xcpng8.2
sm-rawhba: 2.30.8-7.1.xcpng8.2
squeezed: 0.27.0-11.1.xcpng8.2
varstored-guard: 0.6.2-8.xcpng8.2
vhd-tool: 0.43.0-11.1.xcpng8.2
wsproxy: 1.12.0-12.xcpng8.2
xapi-core: 1.249.32-2.1.xcpng8.2
xapi-nbd: 1.11.0-10.1.xcpng8.2
xapi-storage: 11.19.0_sxm2-10.xcpng8.2
xapi-storage-script: 0.34.1-9.1.xcpng8.2
xapi-tests: 1.249.32-2.1.xcpng8.2
xapi-xe: 1.249.32-2.1.xcpng8.2
xcp-networkd: 0.56.2-8.xcpng8.2
xcp-rrdd: 1.33.2-7.1.xcpng8.2
xen-*: 4.13.5-9.37.1.xcpng8.2
xenopsd*: 0.150.17-2.1.xcpng8.2
xs-openssl-libs: 1.1.1k-9.1.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates

~3 days

Andrew

@stormi You want us to load ALL of 8.2 testing? There are a few things that show up that were not on your list.... This type of update (and all of the ones in the past) should be in a staging directory so we don't get unintended updates.

stormi

@Andrew Yes. The only other packages in the testing repo are packages that will be pushed to the updates repo at the same time as the rest, but won't be selected by yum as updates for your system.

If you see anything suspicious in the output of yum update, before pressing y, just tell, but I haven't put anything in the testing repo which is not supposed to be published in the next updates.

olivierlambert

Tested here, nothing special to report

JeffBerntsen

Installed on a test system and all is working well for me so far.

stormi

Update published. Thanks for the tests!

https://xcp-ng.org/blog/2023/10/27/october-2023-security-update-2/

JeffBerntsen

@stormi Following the warning in this patch set's announcement, I did not install it on my XOSTOR setup. Is it safe to do so now?

stormi

@JeffBerntsen Yes, we published the XOSTOR-ready version of the update at the same time. The only difference you should notice with other hosts is the installed version of sm (and subpackages) will be 2.30.8-7.1.0.linstor.2.xcpng8.2

JeffBerntsen

@stormi Thanks for the quick reply. That's what I'd figured but I like to be cautious so thought I should ask.

stormi

Urgent security update candidate (only a few hours to provide feedback)

There's an escalation of privilege vulnerability in Intel CPUs of the last few years. It was silently mitigated by Intel in previous microcode updates for the most recent CPU generations, but older affected CPUs were only fixed in yesterday's microcode.

See https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00950.html

Test on XCP-ng 8.2

yum clean metadata --enablerepo=xcp-ng-testing
yum update microcode_ctl --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions

microcode_ctl: 2.1-26.xs26.2.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

If you don't have time for more, just installing the update, rebooting, and checking one VM can start, will be enough.

Test window before official release of the updates

A few hours.

Gheppy

The server (Lenovo System x3650 M5) has started and all 4 VMs are started and functional

Andrew

@stormi Microcode updated on affected Gen11 i7. Running normally.

stormi

Thanks for the feedback! Update published: https://xcp-ng.org/blog/2023/11/15/november-2023-security-update/

The blog post also contains information about two vulnerabilities in Xen, but which don't affect XCP-ng in a supported and/or default configuration.

Users of PV guests who still haven't converted them to HVM should consider it, though.

stormi

New security update candidates

As promised in the announcement of the previous security update, here's a new one which includes changes for previously missing XSA updates as well as an updated AMD microcode.

Security updates

xen-*:
- Fix XSA-445 - x86/AMD: mismatch in IOMMU quarantine page table levels. On x86 AMD systems with IOMMU hardware, a device in quarantine mode, using dom_io, could access leaked data from previously quarantined pages. This is not enabled by default in XCP-ng, but can still be enabled at Xen boot time.
- Fix XSA-446 - x86: BTC/SRSO fixes not fully effective. A PV guest could infer memory content from other guests. We do not recommand using PV guests and have been suggesting switching to HVM for a while, so we do hope most users were not impacted by this.
linux-firmware: Update AMD microcode to 2023-10-19 drop, updating the family 19h, so Zen 3, Zen3+ and Zen 4. AMD Advisory here.

Other updates

We plan to also push other, non security, updates at the same time, to pave the way for the upcoming refreshed installation ISOs.

gpumon: suppression of logs which were needlessly written every 5s into /var/log/daemon.log.
tzdata: updated timezones.
vendor-drivers: pull new drivers into XCP-ng:
- igc-module: Intel device drivers for I225/I226
- r8125-module: Realtek r8125 device drivers
- mpi3mr-module: Broadcom mpi3mr RAID device driver

Test on XCP-ng 8.2

yum clean metadata --enablerepo=xcp-ng-testing
yum update "xen-*" linux-firmware gpumon vendor-drivers tzdata --enablerepo=xcp-ng-testing
reboot

The usual update rules apply: pool coordinator first, etc.

Versions:

xen: 4.13.5-9.38.1.xcpng8.2
linux-firmware: 20190314-10.1.xcpng8.2 (Update: now 20190314-10.2.xcpng8.2, which adds firmware for rtl8125)
gpumon: 0.18.0-11.2.xcpng8.2
tzdata: 2023c-1.el7
vendor-drivers: 1.0.2-1.6.xcpng8.2

What to test

Normal use and anything else you want to test. The closer to your actual use of XCP-ng, the better.

Test window before official release of the updates
~4 days

Samuel, along with David and Gaël