Bug 1583251
| Summary: | home dir disappear in sssd cache on the IPA master for AD users | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Sebastien Aime <saime> | |
| Component: | sssd | Assignee: | Sumit Bose <sbose> | |
| Status: | CLOSED ERRATA | QA Contact: | ipa-qe <ipa-qe> | |
| Severity: | high | Docs Contact: | ||
| Priority: | high | |||
| Version: | 7.5 | CC: | amore, fidencio, grajaiya, jhrozek, ksiddiqu, lslebodn, mkosek, mzidek, pbrezina, saime, sbose, sgoveas, tscherf | |
| Target Milestone: | rc | Keywords: | ZStream | |
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | sssd-1.16.2-1.el7 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1596292 (view as bug list) | Environment: | ||
| Last Closed: | 2018-10-30 10:42:30 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1596292 | |||
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Description
Sebastien Aime
2018-05-28 14:58:31 UTC
This issue is related to the magic private group (mpg) code which makes sure that with algorithmic id-mapping users from AD (sub-domain users) are automatically assigned a user private group. Since the private groups does not exists as a real group a lookup for this group uses a fallback to a user lookup. If now the user private group is looked up while the cached user entry is exprired the backend first tries to find a matching group fails and falls back to a user lookup. Now two issues happen. First the user is looked up in the Global Catalog which will remove attribute from the cache which are not replicated to the Global Catalog, e.g. the shell or a home directory defined in AD. Second the code which adds the home directory attribute to the cache user object was not able to find the user object because the original request was a group lookup and the used call to search the cache was not aware of MPGs. Reproducer: [root@f26-ipa ~]# systemctl stop sssd.service ; rm -f /var/log/sssd/* ; rm -f /var/lib/sss/db/* ; systemctl start sssd.service [root@f26-ipa ~]# getent passwd tu1 tu1:*:1367201104:1367201104:t u:/home/ad.devel/tu1:/bin/sh [root@f26-ipa ~]# sss_cache -E [root@f26-ipa ~]# getent group 1367201104 tu1:*:1367201104: [root@f26-ipa ~]# getent passwd tu1 tu1:*:1367201104:1367201104:t u:/: Upstream ticket: https://pagure.io/SSSD/sssd/issue/3748 * master: * ad6ab35 * e66517d * 0322215 * 8aa56a9 Kaleem, could you qa_ack this bug, please? See comment #3 for a reproducer. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2018:3158 |