Bug 862215 - SELinux is preventing /usr/lib64/realmd/realmd from 'read' accesses on the chr_file random.
SELinux is preventing /usr/lib64/realmd/realmd from 'read' accesses on the ch...
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Miroslav Grepl
Fedora Extras Quality Assurance
: Reopened
Depends On:
  Show dependency treegraph
Reported: 2012-10-02 06:17 EDT by Stef Walter
Modified: 2012-12-20 09:59 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2012-12-20 09:59:38 EST
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Documentation: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
File: type (9 bytes, text/plain)
2012-10-02 06:17 EDT, Stef Walter
no flags Details
File: hashmarkername (14 bytes, text/plain)
2012-10-02 06:17 EDT, Stef Walter
no flags Details

  None (edit)
Description Stef Walter 2012-10-02 06:17:32 EDT
Description of problem:
realmd needs to be able to connect to a IPA server using TLS, and this seems to use the /dev/urandom file.

Additional info:
libreport version: 2.0.14
kernel:         3.6.0-0.rc7.git1.4.fc18.x86_64

:SELinux is preventing /usr/lib64/realmd/realmd from 'read' accesses on the chr_file random.
:*****  Plugin catchall (100. confidence) suggests  ***************************
:If you believe that realmd should be allowed read access on the random chr_file by default.
:Then you should report this as a bug.
:You can generate a local policy module to allow this access.
:allow this access for now by executing:
:# grep realmd /var/log/audit/audit.log | audit2allow -M mypol
:# semodule -i mypol.pp
:Additional Information:
:Source Context                system_u:system_r:realmd_t:s0-s0:c0.c1023
:Target Context                system_u:object_r:random_device_t:s0
:Target Objects                random [ chr_file ]
:Source                        realmd
:Source Path                   /usr/lib64/realmd/realmd
:Port                          <Unknown>
:Host                          (removed)
:Source RPM Packages           realmd-0.8-2.fc18.x86_64
:Target RPM Packages           
:Policy RPM                    selinux-policy-3.11.1-25.fc18.noarch
:Selinux Enabled               True
:Policy Type                   targeted
:Enforcing Mode                Enforcing
:Host Name                     (removed)
:Platform                      Linux (removed) 3.6.0-0.rc7.git1.4.fc18.x86_64 #1
:                              SMP Tue Sep 25 19:55:25 UTC 2012 x86_64 x86_64
:Alert Count                   1
:First Seen                    2012-10-02 12:16:25 CEST
:Last Seen                     2012-10-02 12:16:25 CEST
:Local ID                      b834b33a-bb46-4b72-833c-74839767b6a3
:Raw Audit Messages
:type=AVC msg=audit(1349172985.528:577): avc:  denied  { read } for  pid=15420 comm="realmd" name="random" dev="devtmpfs" ino=1032 scontext=system_u:system_r:realmd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:random_device_t:s0 tclass=chr_file
:type=SYSCALL msg=audit(1349172985.528:577): arch=x86_64 syscall=access success=no exit=EACCES a0=3d8b469444 a1=4 a2=0 a3=0 items=0 ppid=1 pid=15420 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=realmd exe=/usr/lib64/realmd/realmd subj=system_u:system_r:realmd_t:s0-s0:c0.c1023 key=(null)
:Hash: realmd,realmd_t,random_device_t,chr_file,read
:#============= realmd_t ==============
:#!!!! This avc can be allowed using the boolean 'authlogin_nsswitch_use_ldap'
:allow realmd_t random_device_t:chr_file read;
:audit2allow -R
:#============= realmd_t ==============
:#!!!! This avc can be allowed using the boolean 'authlogin_nsswitch_use_ldap'
:allow realmd_t random_device_t:chr_file read;
Comment 1 Stef Walter 2012-10-02 06:17:35 EDT
Created attachment 620216 [details]
File: type
Comment 2 Stef Walter 2012-10-02 06:17:37 EDT
Created attachment 620217 [details]
File: hashmarkername
Comment 3 Daniel Walsh 2012-10-09 12:47:26 EDT
This is actually reading /dev/random.

Fixed in selinux-policy-3.11.1-34.fc18.noarch
Comment 4 Fedora Update System 2012-10-11 05:03:18 EDT
selinux-policy-3.11.1-36.fc18 has been submitted as an update for Fedora 18.
Comment 5 Fedora Update System 2012-10-11 13:21:54 EDT
Package selinux-policy-3.11.1-36.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.11.1-36.fc18'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
Comment 6 Fedora Update System 2012-12-20 09:59:41 EST
selinux-policy-3.11.1-36.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

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