This is also being seen on Fedora Rawhide Atomic Host. # rpm-ostree status State: idle Deployments: ● rawhide:fedora/rawhide/x86_64/atomic-host Version: Rawhide.20170724.n.0 (2017-07-24 11:01:23) Commit: 508fedeefc8c6a00516070a7edacc1c05edd34a3471c1e6ebc3f8bb4f2640f88 # rpm -q selinux-policy selinux-policy-3.13.1-265.fc27.noarch # journalctl -b | grep denied Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:02 micah-f26ah-vm0725a.localdomain audit[647]: AVC avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Jul 25 16:07:03 micah-f26ah-vm0725a.localdomain kernel: audit: type=1400 audit(1500998822.702:75): avc: denied { dac_read_search } for pid=647 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 +++ This bug was initially created as a clone of Bug #1467468 +++ Description of problem: SELinux is preventing systemd-tmpfile from using the 'dac_read_search' capabilities. ***** Plugin dac_override (91.4 confidence) suggests ********************** If you want to help identify if domain needs this access or you have a file with the wrong permissions on your system Then turn on full auditing to get path information about the offending file and generate the error again. Do Turn on full auditing # auditctl -w /etc/shadow -p w Try to recreate AVC. Then execute # ausearch -m avc -ts recent If you see PATH record check ownership/permissions on file, and fix it, otherwise report as a bugzilla. ***** Plugin catchall (9.59 confidence) suggests ************************** If you believe that systemd-tmpfile should have the dac_read_search capability by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'systemd-tmpfile' --raw | audit2allow -M my-systemdtmpfile # semodule -X 300 -i my-systemdtmpfile.pp Additional Information: Source Context system_u:system_r:systemd_tmpfiles_t:s0 Target Context system_u:system_r:systemd_tmpfiles_t:s0 Target Objects Unknown [ capability ] Source systemd-tmpfile Source Path systemd-tmpfile Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.18.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.12.0-1.fc27.x86_64 #1 SMP Mon Jul 3 15:45:36 UTC 2017 x86_64 x86_64 Alert Count 731 First Seen 2017-05-21 20:26:54 MDT Last Seen 2017-07-03 15:51:59 MDT Local ID 1dad7e22-afc2-4464-a3bc-d49ef9e4f7ef Raw Audit Messages type=AVC msg=audit(1499118719.51:257): avc: denied { dac_read_search } for pid=3756 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Hash: systemd-tmpfile,systemd_tmpfiles_t,systemd_tmpfiles_t,capability,dac_read_search Version-Release number of selected component: selinux-policy-3.13.1-225.18.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.12.0-1.fc27.x86_64 type: libreport Potential duplicate: bug 1451385 --- Additional comment from Daniel Walsh on 2017-07-06 07:35:11 EDT --- I think a lot of these are caused by some fixes to the kernel that now does dac_read_search before dac_override. We could probable replace a lot of dac_override access with dac_read_search.
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'.
This appears to be fixed in Rawhide Atomic Host with 'selinux-policy-3.13.1-270.fc27.noarch' # rpm-ostree status State: idle Deployments: ● rawhide:fedora/rawhide/x86_64/atomic-host Version: Rawhide.20170815.n.1 (2017-08-15 20:34:47) Commit: a5b8ef53e3e93ed057c65e0d2b0ddea7f392862e77b930595dca9c7811abbd78 # rpm -q selinux-policy selinux-policy-3.13.1-270.fc27.noarch # grep 'avc: denied' /var/log/audit/audit.log #