Bug 1117420
| Summary: | rhsmcertd versus ostree versus selinux | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Colin Walters <walters> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED RAWHIDE | QA Contact: | BaseOS QE Security Team <qe-baseos-security> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.1 | CC: | alikins, mmalik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-09-01 09:45:47 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: | 1123889 | ||
Normally most userspace processes shouldn't need access to /ostree (or /sysroot), but subscription-manager right now writes to /ostree/repo/config. Can we just allow this access in RHEL7? rhsmcertd-worker will need to: - read /ostree/repo/config - write /ostree/repo/config /usr/share/rhsm/subscription_manager/plugin/ostree/gi_wrapper.py will need to be able to read/write /ostree/deploy/rhel-atomic-host/deploy/*.origin (and likely.. /ostree/deploy/*/deploy/*.origin If those files get specific contexts, subscription-manager will need to be able to read/write as well. How are /ostree/repo and /ostree/deploy/*/deploy dirs placed? Basically I will add mnt_t label for /ostree but we will need to add filenametrans for these subdirs to get correct labeling. mnt_t would be strange for /ostree. I think usr_t would be a better match. Right now these files are generated by Anaconda, which calls into ostree itself to initialize the rootfs. I think we can take care of just looking up the label for /usr and using that as the context for these files. Yes I have been thinking also about usr_t. Well but you don't want to allow rhsmcertd_t to write generic types like usr_t or mnt_t. I think we can make /ostree/repo/config etc_t. (Note in current ostree versions, /etc/ostree/remotes.d exists, and ideally RHSM uses that) Actually system_conf_t is a label which we want to add for /ostree/repo/config /etc/ostree/remotes.d I added all changes to rawhide/f21. If anyone hits this bug, you can work around it by: systemctl stop rhsmcertd subscription-manager register ... |
I'm seeing: type=AVC msg=audit(1404835626.233:83): avc: denied { read } for pid=827 comm="rhsmcertd-worke" name="ostree" dev="sda3" ino=8389295 scontext=system_u:system_r:rhsmcertd_t:s0 tcontext=system_u:object_r:default_t:s0 tclass=lnk_file See also https://bugzilla.redhat.com/show_bug.cgi?id=1115212 The right fix may be an updated SELinux policy.