Bug 1678040

Summary: milter-regex can not create socket in /var/spool/milter-regex
Product: [Fedora] Fedora Reporter: rgessner <ralph>
Component: milter-regexAssignee: Paul Howarth <paul>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 29CC: paul, ralph
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Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: milter-regex-2.2-3.fc30 milter-regex-2.2-3.fc28 milter-regex-2.2-3.fc29 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2019-03-29 19:20:07 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description rgessner 2019-02-17 19:29:52 UTC
Description of problem:

Selinux is preventing milter-regex to create the needed socket file /var/spool/milter-regex/sock with "avc: denied { dac_override }"


Version-Release number of selected component (if applicable):
milter-regex-2.2-1.fc29.x86_64
selinux-policy-3.14.2-48.fc29.noarch
kernel-4.20.8-200.fc29.x86_64

How reproducible:

Install fresh fedora29 system with milter-regex package.

Steps to Reproduce:
1. dnf install milter-regex
2. systemctl start milter-regex.service


Actual results:
Job for milter-regex.service failed because the control process exited with error code.
See "systemctl status milter-regex.service" and "journalctl -xe" for details.

journalctl reports:
milter-regex: Unable to bind to port unix:/var/spool/milter-regex/sock: Permission denied
milter-regex: Unable to create listening socket on conn unix:/var/spool/milter-regex/sock



Expected results:

milter-regex creates the socket file /var/spool/milter-regex/sock


Additional info:

# ls -ldZ /var/spool/milter-regex/
drwxr-xr-x. 2 mregex mregex system_u:object_r:regex_milter_data_t:s0 6 Sep 27 11:36 /var/spool/milter-regex/

# ls -lZ /usr/sbin/milter-regex
-rwxr-xr-x. 1 root root system_u:object_r:regex_milter_exec_t:s0 49368 Sep 27 11:36 /usr/sbin/milter-regex



----
time->Sun Feb 17 20:21:04 2019
type=PROCTITLE msg=audit(1550431264.377:496): proctitle="/usr/sbin/milter-regex"
type=PATH msg=audit(1550431264.377:496): item=1 name="/var/spool/milter-regex/sock" nametype=CREATE cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0
type=PATH msg=audit(1550431264.377:496): item=0 name="/var/spool/milter-regex/" inode=25688368 dev=fd:00 mode=040755 ouid=985 ogid=985 rdev=00:00 obj=system_u:object_r:regex_milter_data_t:s0 nametype=PARENT cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0
type=CWD msg=audit(1550431264.377:496): cwd="/"
type=SOCKADDR msg=audit(1550431264.377:496): saddr=01002F7661722F73706F6F6C2F6D696C7465722D72656765782F736F636B0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
type=SYSCALL msg=audit(1550431264.377:496): arch=c000003e syscall=49 success=no exit=-13 a0=4 a1=7ffd277f4fd0 a2=6e a3=fffffffffffff877 items=2 ppid=1 pid=26359 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="milter-regex" exe="/usr/sbin/milter-regex" subj=system_u:system_r:regex_milter_t:s0 key=(null)
type=AVC msg=audit(1550431264.377:496): avc:  denied  { dac_override } for  pid=26359 comm="milter-regex" capability=1  scontext=system_u:system_r:regex_milter_t:s0 tcontext=system_u:system_r:regex_milter_t:s0 tclass=capability permissive=0
----

Comment 1 rgessner 2019-02-18 16:03:19 UTC
Easy workaround for me (based on information from https://danwalsh.livejournal.com/79643.html) is to change the owner of the /var/spool/milter-regex/ directory from 'mregex' to 'root'.


But this should be fixed in the package itself.

Comment 2 Fedora Update System 2019-03-24 17:40:44 UTC
milter-regex-2.2-3.fc30 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-2610d848f3

Comment 3 Fedora Update System 2019-03-24 17:40:52 UTC
milter-regex-2.2-3.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-e3243a1930

Comment 4 Fedora Update System 2019-03-24 17:40:59 UTC
milter-regex-2.2-3.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2019-609fdb3805

Comment 5 Fedora Update System 2019-03-25 03:49:00 UTC
milter-regex-2.2-3.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-2610d848f3

Comment 6 Fedora Update System 2019-03-25 05:10:23 UTC
milter-regex-2.2-3.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-609fdb3805

Comment 7 Fedora Update System 2019-03-25 06:48:52 UTC
milter-regex-2.2-3.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-e3243a1930

Comment 8 Fedora Update System 2019-03-29 19:20:07 UTC
milter-regex-2.2-3.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2019-04-02 01:36:25 UTC
milter-regex-2.2-3.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2019-04-02 02:14:11 UTC
milter-regex-2.2-3.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.