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cmd/snap-update-ns: ensure that a /tmp/.X11-unix created inside the mount ns has expected permissions - #17001

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May 20, 2026
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cmd/snap-update-ns: ensure that a /tmp/.X11-unix created inside the mount ns has expected permissions#17001
bboozzoo merged 1 commit into
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bboozzoo:bboozzoo/hint-tmp-x11-unix

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The /tmp/.X11-unix target path created inside the snap's mount ns is hidden when the mount added by the x11 interface is executed. However, to keep things consistent we should ensure that it is created with a reasonable mode, which matches what a typical /tmp/.X11-unix directory would have.

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@github-actions github-actions Bot added the Run only one system Only runs spread tests on one system label Apr 30, 2026
@bboozzoo
bboozzoo force-pushed the bboozzoo/hint-tmp-x11-unix branch from 257ea82 to 91dd977 Compare April 30, 2026 09:25
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Tue May 19 14:03:01 UTC 2026
The following results are from: https://github.com/canonical/snapd/actions/runs/25420725809

Failures:

Preparing:

  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:

Executing:

  • openstack:debian-sid-64:tests/unit/go:static

Restoring:

  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:opensuse-15.6-64:
  • openstack:ubuntu-24.04-64:tests/cross/go-build:arm64

Skipped tests from snapd-testing-skip

If you wish to have any of the below tests run in your PR, in your PR description, add 'unskip:' followed by a copy-and-pasted list (without variants) of the below tests you wish to run (unskip plus test list must be valid yaml)

  • garden:ubuntu-25.10-64:tests/main/apparmor-prompting-support
  • openstack-arm:ubuntu-24.04-arm-64:tests/main/i18n
  • openstack-arm:ubuntu-core-24-arm-64:tests/main/i18n
  • openstack:centos-9-64:tests/main/selinux-clean
  • openstack:debian-sid-64:tests/main/interfaces-network-status-classic
  • openstack:fedora-42-64:tests/main/selinux-clean
  • openstack:ubuntu-24.04-64:tests/main/i18n
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-flag-restart
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_actioned_by_other_pid_always_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_actioned_by_other_pid_always_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_not_actioned_by_other_pid_single_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_multiple_not_actioned_by_other_pid_single_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_write_chmod_same_fd_single_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_write_chmod_same_path_single_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:create_write_write_same_path_single_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:download_file_conflict
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:download_file_defaults
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:download_file_safer
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:read_single_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:read_single_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:special_characters
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:timespan_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:timespan_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:write_read_multiple_actioned_by_other_pid_allow_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:write_read_multiple_actioned_by_other_pid_deny_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:write_single_allow
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-integration-tests:write_single_deny
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-prompt-restoration
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_allow_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_allow_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_allow_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_allow_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_deny_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_deny_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_deny_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:camera_deny_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_allow_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_allow_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_allow_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_allow_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_deny_forever
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_deny_session
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_deny_single
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-smoke:home_deny_timespan
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-snapd-startup
  • openstack:ubuntu-25.10-64:tests/main/apparmor-prompting-support
  • openstack:ubuntu-25.10-64:tests/main/interfaces-requests-activates-handlers
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-flag-restart
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_actioned_by_other_pid_always_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_actioned_by_other_pid_always_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_not_actioned_by_other_pid_single_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_multiple_not_actioned_by_other_pid_single_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_write_chmod_same_fd_single_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_write_chmod_same_path_single_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:create_write_write_same_path_single_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:download_file_conflict
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:download_file_defaults
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:download_file_safer
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:read_single_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:read_single_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:special_characters
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:timespan_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:timespan_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:write_read_multiple_actioned_by_other_pid_allow_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:write_read_multiple_actioned_by_other_pid_deny_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:write_single_allow
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-integration-tests:write_single_deny
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-prompt-restoration
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_allow_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:audiorecord_deny_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_allow_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_allow_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_allow_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_allow_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_deny_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_deny_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_deny_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:camera_deny_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_allow_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_allow_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_allow_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_allow_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_deny_forever
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_deny_session
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_deny_single
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-smoke:home_deny_timespan
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-snapd-startup
  • openstack:ubuntu-26.04-64:tests/main/apparmor-prompting-support
  • openstack:ubuntu-26.04-64:tests/main/i18n
  • openstack:ubuntu-26.04-64:tests/main/interfaces-requests-activates-handlers

@codecov

codecov Bot commented Apr 30, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.06%. Comparing base (8152be4) to head (1ae4d58).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files
@@            Coverage Diff             @@
##           master   #17001      +/-   ##
==========================================
- Coverage   79.06%   79.06%   -0.01%     
==========================================
  Files        1375     1380       +5     
  Lines      191085   191171      +86     
  Branches     2465     2465              
==========================================
+ Hits       151075   151141      +66     
- Misses      30917    30934      +17     
- Partials     9093     9096       +3     
Flag Coverage Δ
unittests 79.06% <100.00%> (-0.01%) ⬇️

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@bboozzoo
bboozzoo marked this pull request as ready for review April 30, 2026 12:07
@github-actions github-actions Bot removed the Run only one system Only runs spread tests on one system label Apr 30, 2026
@bboozzoo

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@Saviq can you try the snapd snap from this PR?

@bboozzoo
bboozzoo requested a review from miguelpires April 30, 2026 13:37
…ount ns has expected permissions

The /tmp/.X11-unix target path created inside the snap's mount ns is
hidden when the mount added by the x11 interface is executed. However,
to keep things consistent we should ensure that it is created with a
reasonable mode, which matches what a typical /tmp/.X11-unix directory
would have.

Signed-off-by: Maciej Borzecki <maciej.borzecki@canonical.com>
@bboozzoo
bboozzoo force-pushed the bboozzoo/hint-tmp-x11-unix branch from 91dd977 to 1ae4d58 Compare May 6, 2026 06:48
@bboozzoo bboozzoo added the Auto rerun spread Auto reruns spread up to 4 times in non-draft PRs w/ >=1 approval and <20 fails in any fund. system label May 6, 2026
@bboozzoo bboozzoo added this to the 2.76 milestone May 19, 2026
@bboozzoo
bboozzoo merged commit 94dffca into canonical:master May 20, 2026
814 of 848 checks passed
@bboozzoo
bboozzoo deleted the bboozzoo/hint-tmp-x11-unix branch May 20, 2026 08:33
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3 participants