> 1. Is this bug that saslauthd doesn't work in Noble at all because the permissions are wrong? Or only in certain circumstances, and in which case, which ones?
The reporter did not indicate what their specific failure mode was, but some examples of where this has been a problem in the past have related to authentication or service restart. > 2. Is it possible that somebody is successfully using saslauthd running as root, and changing the group of the service to sasl would break them? For example, what if they have saslauthd configured to read something else that is only readable by root? What about shadow? I mentioned in the "Where Problems Might Occur" section that if files are created in the /run directory with root permissions, that could potentially cause issues. Similarly, I suppose if they had a configuration that was making use of the service root permissions, I suppose that could potentially be an issue as well. Do you feel either of those would be disqualifying for SRU? > 3. Seems like this could do with verifying that saslauthd is working > end-to-end in at least one scenario. See: "The Test Plan verifies a technical > change but not the user story" as well as "Test Plan only covers the fix, and > not general use of the package to make sure that it still works after the > update" from > https://canonical-sru-docs.readthedocs-hosted.com/en/latest/howto/common-issues/#test-plan > 4. Can we add a dep8 test for saslauthd to both do the verification and also > prevent regressions in the future? As Andreas mentions, there is a saslauthd DEP8 test. This issue crops up only after the service is restarted, and while the test cause does do a service restart, the subsequent checks may not be thorough enough to trigger the bug. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cyrus-sasl2 in Ubuntu. https://bugs.launchpad.net/bugs/2078851 Title: saslauthd wrong permission of /var/spool/postfix/var/run/saslauthd Status in cyrus-sasl2 package in Ubuntu: Fix Released Status in cyrus-sasl2 source package in Noble: Incomplete Status in cyrus-sasl2 source package in Oracular: Fix Released Bug description: [Impact] Incorrect ownership of files in saslauthd's run directory can result in service issues (e.g. failure to authenticate, failure to restart, etc.) [Workaround] # systemctl edit saslauthd.service Then, put the following lines inside the file: [Service] Group=sasl Save the file, and restart the service. You should now see the right permissions/owner/group under /run/saslauthd. [Test Case] $ sudo apt-get install postfix sasl2-bin $ sudo systemctl enable saslauthd $ ls -ld /run/saslauthd/ drwx--x--- 2 root sasl 40 Sep 24 23:07 /run/saslauthd/ $ sudo systemctl start saslauthd $ ls -ld /run/saslauthd/ drwxr-xr-x 2 root root 140 Sep 24 23:09 /run/saslauthd [Where Problems Could Occur] Since the fix is only in packaging and deals only with permissions, regressions would be expected to be limited to permission issues relating to packaging files (configuration, daemons, logs, etc.) Notably, the fix corrects permissions on the *directory* itself, but not on its contents. Since the problem is that root ownership of the directory prevents non-root users from adding non-root owned files there, it is unlikely this situation would crop up in practice, and if it did should be reviewed and analyzed by the user. (We would not want to auto-fix unknown root-owned file permissions to non-root.) [Original Report] Folder group permission of /var/spool/postfix/var/run/saslauthd gets reset to "root" (should be "sasl") every time saslauthd gets restarted. This worked fine before upgrading from 22.04 to 24.04 My automated workaround currently is this crontab (root) entry: */1 * * * * /usr/bin/chgrp sasl /var/spool/postfix/var/run/saslauthd 2>&1 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: postfix 3.8.6-1build2 ProcVersionSignature: Ubuntu 6.8.0-41.41-generic 6.8.12 Uname: Linux 6.8.0-41-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Tue Sep 3 19:52:59 2024 SourcePackage: postfix UpgradeStatus: Upgraded to noble on 2024-08-31 (3 days ago) mtime.conffile..etc.init.d.apport: 2024-07-22T16:59:07 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cyrus-sasl2/+bug/2078851/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
