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Bug 1472722 - SELinux is preventing /usr/sbin/lldpad from sendto access on the unix_dgram_socket
Summary: SELinux is preventing /usr/sbin/lldpad from sendto access on the unix_dgram_s...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.3
Hardware: All
OS: Linux
high
high
Target Milestone: rc
: 7.4
Assignee: Lukas Vrabec
QA Contact: Milos Malik
Mirek Jahoda
URL:
Whiteboard:
Depends On:
Blocks: 1458501 1479767
TreeView+ depends on / blocked
 
Reported: 2017-07-19 09:10 UTC by Dominik Holler
Modified: 2018-04-10 12:36 UTC (History)
9 users (show)

Fixed In Version: selinux-policy-3.13.1-167.el7
Doc Type: Bug Fix
Doc Text:
*SELinux* now allows *vdsm* to communicate with *lldpad* Prior to this update, *SELinux* in enforcing mode denied the *vdsm* daemon to access *lldpad* information. Consequently, *vdsm* was not able to work correctly. With this update, a rule to allow a `virtd_t` domain to send data to a `lldpad_t` domain through the `dgram` socket has been added to the _selinux-policy_ packages. As a result, *vdsm* labeled as `virtd_t` can now communicate with *lldpad* labeled as `lldpad_t` if *SELinux* is set to enforcing mode.
Clone Of:
: 1479767 (view as bug list)
Environment:
Last Closed: 2018-04-10 12:34:36 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:0763 0 None None None 2018-04-10 12:36:05 UTC

Description Dominik Holler 2017-07-19 09:10:33 UTC 
Description of problem:

vdsm requires access to lldpad's information, but SELinux does not allow lldpad to send the information.


SELinux is preventing /usr/sbin/lldpad from sendto access on the unix_dgram_socket @/com/intel/lldpad/11440.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that lldpad should be allowed sendto access on the 11440 unix_dgram_socket 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 'lldpad' --raw | audit2allow -M my-lldpad
# semodule -i my-lldpad.pp


Additional Information:
Source Context                system_u:system_r:lldpad_t:s0
Target Context                system_u:system_r:virtd_t:s0-s0:c0.c1023
Target Objects                @/com/intel/lldpad/11440 [ unix_dgram_socket ]
Source                        lldpad
Source Path                   /usr/sbin/lldpad
Port                          <Unknown>
Host                          <Unknown>
Source RPM Packages           lldpad-1.0.1-3.git036e314.el7.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-102.el7_3.16.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     selinuxtest
Platform                      Linux selinuxtest 3.10.0-514.26.2.el7.x86_64 #1
                              SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64
Alert Count                   10
First Seen                    2017-07-19 10:36:26 CEST
Last Seen                     2017-07-19 10:47:01 CEST
Local ID                      9ac73daa-d7e3-4650-92e8-602820c3d1d8

Raw Audit Messages
type=SYSCALL msg=audit(1500454021.369:315): arch=x86_64 syscall=sendto success=no exit=EACCES a0=3 a1=7f82973bfb10 a2=28 a3=0 items=0 ppid=1 pid=10901 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=lldpad exe=/usr/sbin/lldpad subj=system_u:system_r:lldpad_t:s0 key=(null)

type=AVC msg=audit(1500454021.369:315): avc:  denied  { sendto } for  pid=10901 comm="lldpad" path=002F636F6D2F696E74656C2F6C6C647061642F3131343430 scontext=system_u:system_r:lldpad_t:s0 tcontext=system_u:system_r:virtd_t:s0-s0:c0.c1023 tclass=unix_dgram_socket


Hash: lldpad,lldpad_t,virtd_t,unix_dgram_socket,sendto
Comment 3 Dominik Holler 2017-07-27 12:05:54 UTC 
Yes, it blocks the linked RFE.
Comment 12 errata-xmlrpc 2018-04-10 12:34:36 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://access.redhat.com/errata/RHBA-2018:0763
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