Christian Brauner
26a9ed9559
sd_varlink_call_full() returns borrowed references into the varlink connection's receive buffer (v->current). fetch_machine() stored this borrowed reference with _cleanup_(sd_json_variant_unrefp), which would unref it on error paths -- potentially freeing the parent object while the varlink connection still owns it. On success, TAKE_PTR passed the raw borrowed pointer to the caller, but the varlink connection (and its receive buffer) is freed when fetch_machine returns, leaving the caller with a dangling pointer. Fix by removing the cleanup attribute (the reference is borrowed, not owned) and taking a real ref via sd_json_variant_ref() before returning to the caller, so the data survives the varlink connection's cleanup. Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
We have a security bug bounty program sponsored by the Sovereign Tech Fund hosted on YesWeHack
Repositories with distribution packages built from git main are available on OBS, and also repositories with packages built from the latest stable release