| Summary: | SELinux prevents NetworkManager from removing resolv.conf | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Stef Walter <stefw> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED NOTABUG | QA Contact: | BaseOS QE Security Team <qe-baseos-security> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.3 | CC: | lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde, stefw, yuma |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-08-23 20:54:52 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: | |
Where is the resolv.conf file located? If it is the /etc directory then the file is mislabeled, because correct label is: # matchpathcon /etc/resolv.conf /etc/resolv.conf system_u:object_r:net_conf_t:s0 # I hit the similar info when ran the team related job, as follows: And I'm not sure it's the same issue as comment #1 saied. If not，please let me know, I will open a new bug. Info: Searching AVC errors produced since 1474910072.73 (Mon Sep 26 13:14:32 2016) Searching logs... Running '/usr/bin/env LC_ALL=en_US.UTF-8 /sbin/ausearch -m AVC -m USER_AVC -m SELINUX_ERR -ts 09/26/2016 13:14:32 < /dev/null >/mnt/testarea/tmp.rhts-db-submit-result.N1izAV 2>&1' ---- time->Mon Sep 26 13:14:33 2016 type=SYSCALL msg=audit(1474910073.167:267): arch=c000003e syscall=62 success=yes exit=0 a0=6820 a1=f a2=0 a3=6820 items=0 ppid=11483 pid=29358 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="teamd" exe="/usr/bin/teamd" subj=system_u:system_r:NetworkManager_t:s0 key=(null) type=AVC msg=audit(1474910073.167:267): avc: denied { signal } for pid=29358 comm="teamd" scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:unconfined_r:unconfined_t:s0 tclass=process Fail: AVC messages found. Checking for errors... Using stronger AVC checks. Define empty RHTS_OPTION_STRONGER_AVC parameter if this causes any problems. Running 'cat /mnt/testarea/tmp.rhts-db-submit-result.N1izAV | /sbin/ausearch -m AVC -m SELINUX_ERR' Fail: AVC messages found. Running 'cat %s | /sbin/ausearch -m USER_AVC >/mnt/testarea/tmp.rhts-db-submit-result.kknRxs 2>&1' Info: No AVC messages found. /bin/grep 'avc: ' /mnt/testarea/dmesg.log | /bin/grep --invert-match TESTOUT.log No AVC messages found in dmesg Running '/usr/sbin/sestatus' SELinux status: enabled SELinuxfs mount: /sys/fs/selinux SELinux root directory: /etc/selinux Loaded policy name: targeted Current mode: permissive Mode from config file: enforcing Policy MLS status: enabled Policy deny_unknown status: allowed Max kernel policy version: 28 Running 'rpm -q selinux-policy || true' selinux-policy-3.13.1-100.el7.noarch Is it still relevant? Do you still see SELinux denials mentioned in comment#0? As far as I can tell, this is no longer an issue. Thanks Stef for info. |
Description of problem: Error: type=1400 audit(1473246547.731:4): avc: denied { unlink } for pid=463 comm="NetworkManager" name="resolv.conf" dev="vda3" ino=11215288 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=unconfined_u:object_r:etc_t:s0 tclass=file Version-Release number of selected component (if applicable): NetworkManager-1.4.0-0.5.beta1.el7.x86_64 selinux-policy-targeted-3.13.1-93.el7.noarch selinux-policy-3.13.1-93.el7.noarch How reproducible: This bug was found by the Cockpit integration tests. Happens regularly with RHEL 7.3 beta. https://fedorapeople.org/groups/cockpit/logs/pull-4975-3cb86143-verify-rhel-7/log.html#87