** Description changed: + [Impact] + On Lubuntu systems with more than one sudoer, lxqt-policykit prior to version 0.17.0 crashes due to calling g_object_unref twice on the same object. + + [Test Plan] STEPS TO REPRODUCE ================== - 1. Boot post-18.04 Lubuntu - 2. Use lxqt-admin-user to create a second user (let's call it user2) - 3. Use lxqt-admin-user to add user2 to sudo - 4. Logout and back in again (yes, this is a requirement to reproduce— if you want, you can first remove user2's sudo and it will work, but then add it back and continue on) - 5. User lxqt-admin-user to try to remove user2's membership in the sudo group (fail) - 6. Try running pkexec against something. Since synaptic is well set up for it, this is a good example, so install synaptic and run `synaptic-pkexec` (fail) - 7. Remove user2's membership in the sudo group for sure with `sudo usermod -G "" user2` - 8. Try running the pkexec command again (success) + 1. Boot post-18.04 Lubuntu + 2. Use lxqt-admin-user to create a second user (let's call it user2) + 3. Use lxqt-admin-user to add user2 to sudo + 4. Logout and back in again (yes, this is a requirement to reproduce— if you want, you can first remove user2's sudo and it will work, but then add it back and continue on) + 5. User lxqt-admin-user to try to remove user2's membership in the sudo group (fail) + 6. Try running pkexec against something. Since synaptic is well set up for it, this is a good example, so install synaptic and run `synaptic-pkexec` (fail) + 7. Remove user2's membership in the sudo group for sure with `sudo usermod -G "" user2` + 8. Try running the pkexec command again (success) EXPECTED RESULT =============== Both the pkexec and the lxqt-admin-user change succeed without crashing. ACTUAL RESULT ============= lxqt-policykit crashes, e.g: [ 764.849494] traps: lxqt-policykit-[1598] general protection fault ip:7f8c94773671 sp:7ffc5acf6618 error:0 in libgobject-2.0.so.0.6400.2[7f8c94745000+36000] + [Regression Potential] + It might be possible, that not all sessions are deleted. + + [Other info] ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: lxqt-admin 0.14.1-1ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30 Uname: Linux 5.4.0-28-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: LXQt Date: Wed Apr 29 12:04:34 2020 InstallationDate: Installed on 2020-04-28 (0 days ago) InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: lxqt-admin UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875774 Title: lxqt-policykit crashes with general protection fault in libgobject-2.0 To manage notifications about this bug go to: https://bugs.launchpad.net/lxqt/+bug/1875774/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
