Bug 542773

Summary:	SELinux is preventing /usr/lib64/chromium-browser/chrome-sandbox "getattr" access on /proc/<pid>.
Product:	[Fedora] Fedora	Reporter:	Vinicius Graciano Elias <vgelias>
Component:	selinux-policy	Assignee:	Daniel Walsh <dwalsh>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	dwalsh, mgrepl
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	setroubleshoot_trace_hash:115ef2e75fff4d79ce095be8448017874310199d6f0aa8cf8fc5d9fc104fae4d
Fixed In Version:	selinux-policy-3.6.32-120.fc12	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-12-07 22:47:20 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Vinicius Graciano Elias 2009-11-30 18:56:22 UTC

Summary:

SELinux is preventing /usr/lib64/chromium-browser/chrome-sandbox "getattr"
access on /proc/.

Detailed Description:

[chrome-sandbox has a permissive type (chrome_sandbox_t). This access was not
denied.]

SELinux denied access requested by chrome-sandbox. It is not expected that this
access is required by chrome-sandbox and this access may signal an intrusion
attempt. It is also possible that the specific version or configuration of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c
                              0.c1023
Target Context                system_u:system_r:udev_t:s0-s0:c0.c1023
Target Objects                /proc/<pid> [ dir ]
Source                        chrome-sandbox
Source Path                   /usr/lib64/chromium-browser/chrome-sandbox
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           chromium-4.0.252.0-0.1.20091119svn32498.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-49.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31.5-127.fc12.x86_64 #1
                              SMP Sat Nov 7 21:11:14 EST 2009 x86_64 x86_64
Alert Count                   1
First Seen                    Mon 30 Nov 2009 04:11:47 PM BRST
Last Seen                     Mon 30 Nov 2009 04:11:47 PM BRST
Local ID                      0bbf9250-59b2-47bd-9e4e-f4d75a0429be
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1259604707.823:957): avc:  denied  { getattr } for  pid=10637 comm="chrome-sandbox" path="/proc/399" dev=proc ino=6267 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tclass=dir

node=(removed) type=SYSCALL msg=audit(1259604707.823:957): arch=c000003e syscall=4 success=yes exit=128 a0=7fff6294ec50 a1=7fff6294ebb0 a2=7fff6294ebb0 a3=1999999999999999 items=0 ppid=2300 pid=10637 auid=500 uid=500 gid=500 euid=0 suid=0 fsuid=0 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="chrome-sandbox" exe="/usr/lib64/chromium-browser/chrome-sandbox" subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-49.fc12,catchall,chrome-sandbox,chrome_sandbox_t,udev_t,dir,getattr
audit2allow suggests:

#============= chrome_sandbox_t ==============
allow chrome_sandbox_t udev_t:dir getattr;

Comment 1 Daniel Walsh 2009-11-30 19:05:07 UTC


You can add these rules for now using

# grep avc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Fixed in selinux-policy-3.6.32-52.fc12.noarch

Comment 2 Fedora Update System 2009-12-01 16:54:42 UTC

selinux-policy-3.6.32-52.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-52.fc12

Comment 3 Vinicius Graciano Elias 2009-12-01 17:56:44 UTC

I gotta this versions on my Fedora 12:

selinux-policy-3.6.32-49.fc12.noarch
selinux-policy-targeted-3.6.32-46.fc12.noarch

I finished the 'yum update' and I don't get the selinux-policy-3.6.32-52.fc12, how can I apply this update on my system ?

Do I have to download from the link above ?

That is what I have found, following this link: http://koji.fedoraproject.org/koji/rpminfo?rpmID=1701541

What I have to do ?

RPMs  	
src	
	selinux-policy-3.6.32-52.fc12.src.rpm (info) (download)
noarch 	(build logs)
	selinux-policy-3.6.32-52.fc12.noarch.rpm (info) (download)
	selinux-policy-doc-3.6.32-52.fc12.noarch.rpm (info) (download)
	selinux-policy-minimum-3.6.32-52.fc12.noarch.rpm (info) (download)
	selinux-policy-mls-3.6.32-52.fc12.noarch.rpm (info) (download)
	selinux-policy-targeted-3.6.32-52.fc12.noarch.rpm (info) (download)

Thanks.

Comment 4 Daniel Walsh 2009-12-01 20:17:27 UTC

Yes you can download it from there by clicking each download button and then use the rpm -Uhv selinux-policy*rpm  to install them.

Or you could wait a couple of days for the rpms to be pushed to updates-testing repositories.

You should update selinux-policy-targeted to get to the -49 version anyways,

yum -y upgrade selinux-policy-targeted

Comment 5 Fedora Update System 2009-12-03 05:02:10 UTC

selinux-policy-3.6.32-52.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2009-12549

Comment 6 Vinicius Graciano Elias 2009-12-03 14:53:52 UTC

I will do the update, but please some can tell me what I have to update ? Just selinux-policy ? or to selinux-policy-targeted ? By the way the second package do what ?

Thanks.

Comment 7 Daniel Walsh 2009-12-03 15:29:02 UTC

yum -y update --enablerepo=updates-testing selinux-policy-targeted


selinux-policy-targeted will suck in selinux-policy

Comment 8 Fedora Update System 2009-12-03 20:26:42 UTC

selinux-policy-3.6.32-55.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-55.fc12

Comment 9 Vinicius Graciano Elias 2009-12-04 15:58:19 UTC

Thanks Daniel !!!

Now I gotta selinux-policy-3.6.32-55.fc12 and selinux-policy-targeted-3.6.32-55.fc12.

Chromium is doing fine ! :)

Comment 10 Fedora Update System 2009-12-04 23:44:48 UTC

selinux-policy-3.6.32-55.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2009-12650

Comment 11 Daniel Walsh 2009-12-05 11:11:10 UTC

Please update karma

Comment 12 Vinicius Graciano Elias 2009-12-06 00:58:32 UTC

Sorry, but I don't know what is "update karma" ? Can you explain ?

Comment 13 Daniel Walsh 2009-12-06 14:24:31 UTC

If you click on 

http://admin.fedoraproject.org/updates/F12/FEDORA-2009-12650  

And add a comment, and click on "Works for me", this will update the karma number on the test package.  Once the number reaches three it gets released.  ( I will be releasing it on Monday, anyways)

Comment 14 Fedora Update System 2009-12-08 07:51:28 UTC

selinux-policy-3.6.32-55.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 15 Fedora Update System 2010-08-05 13:17:58 UTC

selinux-policy-3.6.32-120.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-120.fc12

Comment 16 Fedora Update System 2010-08-20 01:38:22 UTC

selinux-policy-3.6.32-120.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.