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Bug 1142825 - Wrong type of infiniband device files
Summary: Wrong type of infiniband device files
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.1
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks: 1013055
TreeView+ depends on / blocked
 
Reported: 2014-09-17 13:24 UTC by Jiri Denemark
Modified: 2015-03-05 10:41 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.13.1-8.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-05 10:41:01 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0458 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2015-03-05 15:17:00 UTC

Description Jiri Denemark 2014-09-17 13:24:31 UTC 
Description of problem:

opensm running as system_u:system_r:opensm_t:s0 cannot access device files in /dev/infiniband/ because they are labeled with system_u:object_r:fixed_disk_device_t:s0 which is obviously wrong.

Version-Release number of selected component (if applicable):

selinux-policy-3.12.1-153.el7.noarch

How reproducible:

100%

Steps to Reproduce:
1. ls -lZ /dev/infiniband

I tested this with RDMA migration in libvirt (which is a work in progress) and I'm willing to help with testing the fix.

Actual results:

type=AVC msg=audit(1410942308.330:1858): avc:  denied  { read write } for  pid=17894 comm="opensm" name="umad1" dev="devtmpfs" ino=16681 scontext=system_u:system_r:opensm_t:s0 tcontext=system_u:object_r:fixed_disk_device_t:s0 tclass=chr_file
type=AVC msg=audit(1410942308.330:1858): avc:  denied  { open } for  pid=17894 comm="opensm" path="/dev/infiniband/umad1" dev="devtmpfs" ino=16681 scontext=system_u:system_r:opensm_t:s0 tcontext=system_u:object_r:fixed_disk_device_t:s0 tclass=chr_file
type=AVC msg=audit(1410942308.330:1859): avc:  denied  { ioctl } for  pid=17894 comm="opensm" path="/dev/infiniband/umad1" dev="devtmpfs" ino=16681 scontext=system_u:system_r:opensm_t:s0 tcontext=system_u:object_r:fixed_disk_device_t:s0 tclass=chr_file


Expected results:

No AVC denials.

Additional info:
Comment 1 Miroslav Grepl 2014-10-13 13:20:04 UTC 
commit 83a657180309720284aba896047c0ef7b1b0ec43
Author: Miroslav Grepl <mgrepl>
Date:   Mon Oct 13 15:19:11 2014 +0200

    Allow opensm_t to read/write /dev/infiniband/umad1.

commit 3b7a6ef84fd9abf17fd7a4930a86192c0b34b1b8
Author: Miroslav Grepl <mgrepl>
Date:   Mon Oct 13 15:00:53 2014 +0200

    Add interfaces for /dev/infiniband

commit a4a5f1ae263052b4eaba40c3d5412cd34d5d46ed
Author: Miroslav Grepl <mgrepl>
Date:   Mon Oct 13 14:56:52 2014 +0200

    Add infiniband_device_t for /dev/infiniband instead of fixed_disk_device_t type.
Comment 5 Miroslav Grepl 2014-11-05 09:53:20 UTC 
commit da6a1bd134cd060d08e3c742245132e29e3a0f90
Author: Miroslav Grepl <mgrepl>
Date:   Wed Nov 5 10:52:58 2014 +0100

    Make opensm as nsswitch domain to make it working with sssd.
Comment 9 errata-xmlrpc 2015-03-05 10:41:01 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0458.html
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