** Also affects: canonical-livepatch-client
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2058133
Title:
[SRU] update-manager crashes when ua security-status response is an
error
Status in Canonical Livepatch Client:
New
Status in ubuntu-advantage-tools package in Ubuntu:
Invalid
Status in update-manager package in Ubuntu:
Fix Released
Status in update-manager source package in Xenial:
Fix Committed
Status in update-manager source package in Bionic:
Fix Committed
Status in update-manager source package in Focal:
Fix Committed
Status in update-manager source package in Jammy:
Fix Committed
Status in update-manager source package in Noble:
Fix Released
Bug description:
Impact
------
Update Manager fails to launch in the LTS releases if the 'ua
security-status' command fails. It tries to parse its output to
generate the list of ESM-Apps and ESM-Infra updates that would be
available if the system were attached to Ubuntu Pro.
However, if ua finds some problem with unrelated stuff, such as
Livepatch (as evidenced by the attached ubuntu-advantage.log), the
command just raises an error, crashing Update Manager.
Although Update Manager could catch the error, it would result in not
showing Ubuntu Pro updates, simply because the information is not
there.
Better would be to ditch 'ua security-status' in favor of the Ubuntu
Pro API. The updates() end point[1] will provide the information
Update Manager wants even if the Ubuntu Advantage daemon has issues
with other services such as Livepatch (as evidenced by #10), and it
does not raise exceptions.
[1] https://canonical-ubuntu-pro-client.readthedocs-
hosted.com/en/latest/references/api/#u-pro-packages-updates-v1
Test Plan
---------
Attach your machine to Ubuntu Pro and make sure Livepatch is enabled
in the output of 'ua status'. Then, simulate a failing Livepatch with
--->
mv /snap/bin/canonical-livepatch /snap/bin/canonical-livepatch.bak
>/snap/bin/canonical-livepatch printf '%s\n' '#!/bin/sh' 'exit 1'
chmod +x /snap/bin/canonical-livepatch
<----
Launch update-manager, it should open and not crash.
Where problems could occur
--------------------------
In the Ubuntu Pro section of the updates, in form of wrong package
data (e.g. package name, version number etc.) in the description pane
when selecting a package. The section could not show at all, or the
program could crash right away.
Original bug report
-------------------
Below is a run in my computer. Please send a mail on what to do
fuga2:~> update-manager -c -d
Unexpected error(s) occurred.
For more details, see the log: /var/log/ubuntu-advantage.log
To file a bug run: ubuntu-bug ubuntu-advantage-tools
Traceback (most recent call last):
File
"/usr/lib/python3/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py",
line 448, in _on_finished
self._action_done(action,
File "/usr/lib/python3/dist-packages/UpdateManager/backend/__init__.py",
line 365, in _action_done
self.window_main.start_available()
File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line
241, in start_available
self.refresh_cache()
File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line
459, in refresh_cache
self._get_ua_security_status()
File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line
285, in _get_ua_security_status
s = json.load(p.stdout)
File "/usr/lib/python3.10/json/__init__.py", line 293, in load
return loads(fp.read(),
File "/usr/lib/python3.10/json/__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "/usr/lib/python3.10/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.10/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
^CTraceback (most recent call last):
File "/usr/bin/update-manager", line 125, in <module>
Gtk.main()
File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 1687, in
main
with register_sigint_fallback(Gtk.main_quit):
File "/usr/lib/python3.10/contextlib.py", line 142, in __exit__
next(self.gen)
File "/usr/lib/python3/dist-packages/gi/_ossighelper.py", line 237, in
register_sigint_fallback
signal.default_int_handler(signal.SIGINT, None)
KeyboardInterrupt
fuga2:~> ubuntu-bug ubuntu-advantage-tools
fuga2:~> update.go:85: cannot change mount namespace according to change
mount (/var/lib/snapd/hostfs/usr/local/share/doc /usr/local/share/doc none
bind,ro 0 0): cannot open directory "/usr/local/share": permission denied
update.go:85: cannot change mount namespace according to change mount
(/var/lib/snapd/hostfs/usr/share/xubuntu-docs /usr/share/xubuntu-docs none
bind,ro 0 0): cannot open directory "/var/lib": permission denied
Gtk-Message: 11:23:47.656: Not loading module "atk-bridge": The functionality
is provided by GTK natively. Please try to not load it.
fuga2:~>
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubuntu-advantage-tools 31.2~22.04
ProcVersionSignature: Ubuntu 5.15.0-100.110-generic 5.15.143
Uname: Linux 5.15.0-100-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 17 11:22:30 2024
PackageArchitecture: all
SourcePackage: ubuntu-advantage-tools
UpgradeStatus: Upgraded to jammy on 2024-03-09 (7 days ago)
apparmor_logs.txt: Mar 17 11:15:18 fuga2 kernel: audit: type=1400
audit(1710666917.933:11): apparmor="STATUS" operation="profile_load"
profile="unconfined" name="ubuntu_pro_apt_news" pid=1057 comm="apparmor_parser"
cloud-id.txt-error: Invalid command specified 'cloud-id'.
livepatch-status.txt-error: Failed running command
'/snap/bin/canonical-livepatch status' [exit(1)]. Message: error executing
status: open /var/snap/canonical-livepatch/264/livepatchd.err: permission denied
uaclient.conf:
contract_url: https://contracts.canonical.com
log_level: debug
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