Bug 1016332
| Summary: | sysadm_r cannot use iotop | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | William Brown <william> | ||||||||||
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> | ||||||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||||
| Severity: | unspecified | Docs Contact: | |||||||||||
| Priority: | unspecified | ||||||||||||
| Version: | 22 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl | ||||||||||
| Target Milestone: | --- | ||||||||||||
| Target Release: | --- | ||||||||||||
| Hardware: | Unspecified | ||||||||||||
| OS: | Unspecified | ||||||||||||
| Whiteboard: | |||||||||||||
| Fixed In Version: | selinux-policy-3.13.1-116.fc22 | Doc Type: | Bug Fix | ||||||||||
| Doc Text: | Story Points: | --- | |||||||||||
| Clone Of: | Environment: | ||||||||||||
| Last Closed: | 2015-03-10 02:58:40 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: | |||||||||||||
| Attachments: |
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Were you working with Dominick Grift on policy for this? Yes. When we have finished it, I'll post it here. Ok, thank you. Created attachment 810546 [details]
SELinux policy for iotop
Created attachment 810547 [details]
SELinux policy for iotop te
Created attachment 810549 [details]
SELinux policy for iotop if
Attached te, if and fc files for iotop to run as sysadm_r. This has been reviewed on the SELinux mailing list, but I would like to hear other comments if you have them. Created attachment 811096 [details]
SELinux policy for iotop te
This is a slightly updated version of the TE after another round of review.
William I add your policy to rawhide. This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle. Changing version to '22'. More information and reason for this action is here: https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22 selinux-policy-3.13.1-116.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-116.fc22 Package selinux-policy-3.13.1-116.fc22: * should fix your issue, * was pushed to the Fedora 22 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.13.1-116.fc22' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-3508/selinux-policy-3.13.1-116.fc22 then log in and leave karma (feedback). selinux-policy-3.13.1-116.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: iotop is a system administration utility to monitor IO on a system. When running with sysadm_r, it does not operate. Enabling don't audit rules the following denials are listed. type=AVC msg=audit(1381191349.793:2103): avc: denied { create } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tclass=netlink_socket type=SYSCALL msg=audit(1381191349.793:2103): arch=c000003e syscall=41 success=yes exit=7 a0=10 a1=3 a2=10 a3=0 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.794:2104): avc: denied { setopt } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tclass=netlink_socket type=SYSCALL msg=audit(1381191349.794:2104): arch=c000003e syscall=54 success=yes exit=0 a0=7 a1=1 a2=7 a3=7fff6b39f474 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.794:2105): avc: denied { bind } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tclass=netlink_socket type=SYSCALL msg=audit(1381191349.794:2105): arch=c000003e syscall=49 success=yes exit=0 a0=7 a1=7fff6b39f2a0 a2=c a3=0 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.799:2106): avc: denied { write } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tclass=netlink_socket type=SYSCALL msg=audit(1381191349.799:2106): arch=c000003e syscall=44 success=yes exit=36 a0=3 a1=7f98323881e4 a2=24 a3=0 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.799:2107): avc: denied { read } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tclass=netlink_socket type=SYSCALL msg=audit(1381191349.799:2107): arch=c000003e syscall=45 success=yes exit=112 a0=3 a1=28b4ef4 a2=4000 a3=0 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.976:2108): avc: denied { getsched } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tclass=process type=SYSCALL msg=audit(1381191349.976:2108): arch=c000003e syscall=252 success=yes exit=4 a0=1 a1=800 a2=38c2bba780 a3=20 items=0 ppid=21676 pid=22287 auid=2000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=1 tty=pts6 comm="iotop" exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(1381191349.979:2109): avc: denied { getsched } for pid=22287 comm="iotop" scontext=staff_u:sysadm_r:sysadm_t:s0-s0:c0.c1023 tcontext=system_u:system_r:init_t:s0 tclass=process audit2allow reveals the following rules: #============= sysadm_t ============== allow sysadm_t init_t:process getsched; #!!!! This avc has a dontaudit rule in the current policy allow sysadm_t self:netlink_socket { write bind create read setopt }; allow sysadm_t staff_t:process getsched; Given this is the sysadm role, and you need to be root at this point, should this action be allowed? Or is iotop behaving in a manner that is not acceptable?