Skip to content

fix(logind): be tolerant if we failed to remove leader from hashmap - #418

Open
deepin-ci-robot wants to merge 1 commit into
deepin-community:masterfrom
deepin-ci-robot:backport/fix-logind-tolerate-leader-hashmap-removal-failure
Open

fix(logind): be tolerant if we failed to remove leader from hashmap#418
deepin-ci-robot wants to merge 1 commit into
deepin-community:masterfrom
deepin-ci-robot:backport/fix-logind-tolerate-leader-hashmap-removal-failure

Conversation

@deepin-ci-robot

Copy link
Copy Markdown
Contributor

Problem Before the Change

In session_reset_leader(), logind used a strict assert_se(hashmap_remove_value(...)) when removing a session's leader PID from the manager's sessions_by_leader hashmap. If something went wrong before hashmap_put() (i.e. the leader was never registered in the hashmap), session_free() could still be called through GC logic, and the assertion would trigger, aborting systemd-logind.

What This PR Changes

Backports upstream systemd commit 889975bb00a0db26a30bee967df319df7605fd95 (PR systemd/systemd#30610): the strict assertion on hashmap_remove_value() in session_reset_leader() is replaced with a tolerant (void) cast, so a missing leader entry in the hashmap no longer crashes logind during session cleanup.

Problem Solved After the Change

session_free() no longer aborts systemd-logind when the session leader was never put into the sessions_by_leader hashmap, making session cleanup robust against earlier failures.

Changes

  • Add debian/patches/fix-logind-tolerate-leader-hashmap-removal-failure.patch
  • Modify debian/patches/series
  • Modify debian/changelog

Upstream

systemd/systemd@889975b

Generated-By: glm-5.3-flash
Co-Authored-By: deepin-ci-robot packages@deepin.org

If something wrong happened before hashmap_put(), session_free()
may be called through gc logic, and the assertion is triggered.

Changes:
  - Add debian/patches/fix-logind-tolerate-leader-hashmap-removal-failure.patch
  - Modify debian/patches/series
  - Modify debian/changelog

Upstream: systemd/systemd@889975b

Generated-By: glm-5.3-flash
Co-Authored-By: deepin-ci-robot <packages@deepin.org>
@deepin-ci-robot

Copy link
Copy Markdown
Contributor Author

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign goldendeng for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Details Needs approval from an approver in each of these files:

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

@github-actions

github-actions Bot commented Sep 3, 2026

Copy link
Copy Markdown

TAG Bot

TAG: 255.2-4deepin68
EXISTED: no
DISTRIBUTION: unstable

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant