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Bug 1609466

Summary:	SELinux is preventing rngd from search access on the directory pki
Product:	Red Hat Enterprise Linux 7	Reporter:	Lukas Slebodnik <lslebodn>
Component:	selinux-policy	Assignee:	Lukas Vrabec <lvrabec>
Status:	CLOSED DUPLICATE	QA Contact:	Milos Malik <mmalik>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.6	CC:	lvrabec, mgrepl, mmalik, plautrba, ssekidde, sumenon
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-08-06 17:24:05 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:

Description Lukas Slebodnik 2018-07-28 06:35:33 UTC

SELinux is preventing rngd from search access on the directory pki.

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

If you believe that rngd should be allowed search access on the pki directory 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 'rngd' --raw | audit2allow -M my-rngd
# semodule -i my-rngd.pp


Additional Information:
Source Context                system_u:system_r:rngd_t:s0
Target Context                system_u:object_r:cert_t:s0
Target Objects                pki [ dir ]
Source                        rngd
Source Path                   rngd
Port                          <Unknown>
Host                          host.testrelm.test
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-208.el7.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     host.testrelm.test
Platform                      Linux host.testrelm.test
                              3.10.0-926.el7.x86_64 #1 SMP Thu Jul 19 11:52:14
                              EDT 2018 x86_64 x86_64
Alert Count                   2
First Seen                    2018-07-28 02:28:10 EDT
Last Seen                     2018-07-28 02:29:53 EDT
Local ID                      ee873492-6e7a-4108-bb3b-4be169dca44d

Raw Audit Messages
type=AVC msg=audit(1532759393.803:379): avc:  denied  { search } for  pid=11253 comm="rngd" name="pki" dev="dm-0" ino=123 scontext=system_u:system_r:rngd_t:s0 tcontext=system_u:object_r:cert_t:s0 tclass=dir permissive=0


Hash: rngd,rngd_t,cert_t,dir,search

Comment 2 Lukas Slebodnik 2018-07-28 06:40:04 UTC

type=PROCTITLE msg=audit(07/28/2018 02:29:53.803:379) : proctitle=/sbin/rngd -f -r /dev/urandom 
type=PATH msg=audit(07/28/2018 02:29:53.803:379) : item=0 name=/etc/pki/tls/legacy-settings objtype=UNKNOWN cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 
type=CWD msg=audit(07/28/2018 02:29:53.803:379) :  cwd=/ 
type=SYSCALL msg=audit(07/28/2018 02:29:53.803:379) : arch=x86_64 syscall=open success=no exit=EACCES(Permission denied) a0=0x7ffbd5b50622 a1=O_RDONLY a2=0x1b6 a3=0x24 items=1 ppid=1 pid=11253 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=rngd exe=/usr/sbin/rngd subj=system_u:system_r:rngd_t:s0 key=(null) 
type=AVC msg=audit(07/28/2018 02:29:53.803:379) : avc:  denied  { search } for  pid=11253 comm=rngd name=pki dev="dm-0" ino=123 scontext=system_u:system_r:rngd_t:s0 tcontext=system_u:object_r:cert_t:s0 tclass=dir permissive=0

Reproducer:
# yum install -y rng-tools
# rpm -q rng-tools
# systemctl start rngd

sh# rpm -q rng-tools
rng-tools-6.3.1-1.el7.x86_64
sh# journalctl -u rngd
-- Logs begin at Fri 2018-07-27 20:09:34 EDT, end at Sat 2018-07-28 02:38:03 EDT. --
Jul 27 20:10:21 host.testrelm.test systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
Jul 27 20:10:21 host.testrelm.test rngd[10903]: Failed to init entropy source 1: TPM RNG Device
Jul 27 20:10:21 host.testrelm.test rngd[10903]: Failed to init entropy source 2: Intel RDRAND Instruction RNG
Jul 27 20:10:22 host.testrelm.test rngd[10903]: Enabling JITTER rng support

Comment 3 Milos Malik 2018-08-02 09:19:30 UTC

*** Bug 1611413 has been marked as a duplicate of this bug. ***

Comment 4 Lukas Vrabec 2018-08-06 17:24:05 UTC


*** This bug has been marked as a duplicate of bug 1612456 ***