Bug 1016190 - SELinux is preventing /usr/lib/systemd/systemd-logind from 'read' accesses on the chr_file urandom.
SELinux is preventing /usr/lib/systemd/systemd-logind from 'read' accesses on...
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
Depends On:
  Show dependency treegraph
Reported: 2013-10-07 13:07 EDT by Nicolas Mailhot
Modified: 2015-03-09 22:58 EDT (History)
4 users (show)

See Also:
Fixed In Version: selinux-policy-3.13.1-116.fc22
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2015-03-09 22:58:38 EDT
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Regression: ---
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Documentation: ---
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Nicolas Mailhot 2013-10-07 13:07:31 EDT
Description of problem:
SELinux is preventing /usr/lib/systemd/systemd-logind from 'read' accesses on the chr_file urandom.

*****  Plugin catchall_boolean (47.5 confidence) suggests   ******************

If vous souhaitez allow users to resolve user passwd entries directly from ldap rather then using a sssd server
Then vous devez en informer SELinux en activant le booléen « authlogin_nsswitch_use_ldap ».
Vous pouvez lire la page de manuel « None » pour plus de détails.
setsebool -P authlogin_nsswitch_use_ldap 1

*****  Plugin catchall_boolean (47.5 confidence) suggests   ******************

If vous souhaitez enable reading of urandom for all domains.
Then vous devez en informer SELinux en activant le booléen « global_ssp ».
Vous pouvez lire la page de manuel « None » pour plus de détails.
setsebool -P global_ssp 1

*****  Plugin catchall (6.38 confidence) suggests   **************************

If vous pensez que systemd-logind devrait être autorisé à accéder read sur urandom chr_file par défaut.
Then vous devriez rapporter ceci en tant qu'anomalie.
Vous pouvez générer un module de stratégie local pour autoriser cet accès.
autoriser cet accès pour le moment en exécutant :
# grep systemd-logind /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:systemd_logind_t:s0
Target Context                system_u:object_r:urandom_device_t:s0
Target Objects                urandom [ chr_file ]
Source                        systemd-logind
Source Path                   /usr/lib/systemd/systemd-logind
Port                          <Inconnu>
Host                          (removed)
Source RPM Packages           systemd-208-2.fc21.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-87.fc21.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.12.0-0.rc3.git1.1.fc21.x86_64 #1
                              SMP Tue Oct 1 13:34:25 UTC 2013 x86_64 x86_64
Alert Count                   1
First Seen                    2013-10-07 08:22:20 CEST
Last Seen                     2013-10-07 08:22:20 CEST
Local ID                      791b59fb-7c7f-4d5a-9c84-7a1860305aa1

Raw Audit Messages
type=AVC msg=audit(1381126940.522:12983): avc:  denied  { read } for  pid=21845 comm="systemd-logind" name="urandom" dev="devtmpfs" ino=1043 scontext=system_u:system_r:systemd_logind_t:s0 tcontext=system_u:object_r:urandom_device_t:s0 tclass=chr_file

type=SYSCALL msg=audit(1381126940.522:12983): arch=x86_64 syscall=open success=no exit=EACCES a0=7f26c6d3061d a1=80100 a2=7f26c6f99740 a3=7f26c6f990e0 items=0 ppid=1 pid=21845 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=systemd-logind exe=/usr/lib/systemd/systemd-logind subj=system_u:system_r:systemd_logind_t:s0 key=(null)

Hash: systemd-logind,systemd_logind_t,urandom_device_t,chr_file,read

Additional info:
reporter:       libreport-2.1.7
hashmarkername: setroubleshoot
kernel:         3.12.0-0.rc3.git1.1.fc21.x86_64
type:           libreport
Comment 1 Daniel Walsh 2013-10-07 13:21:21 EDT
ad27ee644c59060dcf5a55565dffddc5d5d625e9 fixes this in git.
Comment 2 Lukas Vrabec 2013-10-08 06:47:32 EDT
back ported to f19.
Comment 3 Jaroslav Reznik 2015-03-03 12:10:14 EST
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:
Comment 4 Fedora Update System 2015-03-06 17:08:34 EST
selinux-policy-3.13.1-116.fc22 has been submitted as an update for Fedora 22.
Comment 5 Fedora Update System 2015-03-09 04:37:29 EDT
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:
then log in and leave karma (feedback).
Comment 6 Fedora Update System 2015-03-09 22:58:38 EDT
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.

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