Bug 223827

Summary: Kernel oops with non-MLS/MCS SELinux policy
Product: Red Hat Enterprise Linux 5 Reporter: Paul Moore <paul.moore>
Component: kernelAssignee: Eric Paris <eparis>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 5.0CC: dzickus, poelstra
Target Milestone: ---Keywords: OtherQA
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2008-0314 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-05-21 14:40:54 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:
Attachments:
Description Flags
Patch to 2.6.19 stable kernel none

Description Paul Moore 2007-01-22 17:22:33 UTC 
Description of problem:
The RHEL5 kernel has a problem with non-MLS/MCS enabled SELinux policy where a 
Oops could be triggered by dereferencing a NULL pointer.

Version-Release number of selected component (if applicable):
All NetLabel enabled kernels based on the NetLabel sources from 2.6.19.

How reproducible:
Everytime.

Steps to Reproduce:
1. Load a non-MLS/MCS policy
2. Start a network application
  
Actual results:
Kernel oops

Expected results:
Normal operation

Additional info:
I am attaching a patch which has been shown to fix this problem.
Comment 1 Paul Moore 2007-01-22 17:22:36 UTC 
Created attachment 146201 [details]
Patch to 2.6.19 stable kernel
Comment 2 RHEL Program Management 2007-11-20 05:15:33 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 4 Don Zickus 2007-12-14 18:41:33 UTC 
in 2.6.18-60.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 6 John Poelstra 2008-03-21 03:57:24 UTC 
Greetings Red Hat Partner,

A fix for this issue should be included in the latest packages contained in
RHEL5.2-Snapshot1--available now on partners.redhat.com.  

Please test and confirm that your issue is fixed.

After you (Red Hat Partner) have verified that this issue has been addressed,
please perform the following:
1) Change the *status* of this bug to VERIFIED.
2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified)

If this issue is not fixed, please add a comment describing the most recent
symptoms of the problem you are having and change the status of the bug to ASSIGNED.

If you are receiving this message in Issue Tracker, please reply with a message
to Issue Tracker about your results and I will update bugzilla for you.  If you
need assistance accessing ftp://partners.redhat.com, please contact your Partner
Manager.

Thank you
Comment 7 John Poelstra 2008-04-02 21:38:35 UTC 
Greetings Red Hat Partner,

A fix for this issue should be included in the latest packages contained in
RHEL5.2-Snapshot3--available now on partners.redhat.com.  

Please test and confirm that your issue is fixed.

After you (Red Hat Partner) have verified that this issue has been addressed,
please perform the following:
1) Change the *status* of this bug to VERIFIED.
2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified)

If this issue is not fixed, please add a comment describing the most recent
symptoms of the problem you are having and change the status of the bug to ASSIGNED.

If you are receiving this message in Issue Tracker, please reply with a message
to Issue Tracker about your results and I will update bugzilla for you.  If you
need assistance accessing ftp://partners.redhat.com, please contact your Partner
Manager.

Thank you
Comment 8 John Poelstra 2008-04-09 22:44:30 UTC 
Greetings Red Hat Partner,

A fix for this issue should be included in the latest packages contained in
RHEL5.2-Snapshot4--available now on partners.redhat.com.  

Please test and confirm that your issue is fixed.

After you (Red Hat Partner) have verified that this issue has been addressed,
please perform the following:
1) Change the *status* of this bug to VERIFIED.
2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified)

If this issue is not fixed, please add a comment describing the most recent
symptoms of the problem you are having and change the status of the bug to ASSIGNED.

If you are receiving this message in Issue Tracker, please reply with a message
to Issue Tracker about your results and I will update bugzilla for you.  If you
need assistance accessing ftp://partners.redhat.com, please contact your Partner
Manager.

Thank you
Comment 9 John Poelstra 2008-04-23 17:39:46 UTC 
Greetings Red Hat Partner,

A fix for this issue should be included in the latest packages contained in
RHEL5.2-Snapshot6--available now on partners.redhat.com.  

We are nearing GA for 5.2 so please test and confirm that your issue is fixed ASAP.

After you (Red Hat Partner) have verified that this issue has been addressed,
please perform the following:
1) Change the *status* of this bug to VERIFIED.
2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified)

If this issue is not fixed, please add a comment describing the most recent
symptoms of the problem you are having and change the status of the bug to ASSIGNED.

If you are receiving this message in Issue Tracker, please reply with a message
to Issue Tracker about your results and I will update bugzilla for you.  If you
need assistance accessing ftp://partners.redhat.com, please contact your Partner
Manager.

Thank you
Comment 10 John Poelstra 2008-05-01 16:49:54 UTC 
Greetings Red Hat Partner,

A fix for this issue should be included in the latest packages contained in
RHEL5.2-Snapshot7--available now on partners.redhat.com.  

We are nearing GA for 5.2--this is the last opportunity to test and confirm that
your issue is fixed.

After you (Red Hat Partner) have verified that this issue has been addressed,
please perform the following:
1) Change the *status* of this bug to VERIFIED.
2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified)

If this issue is not fixed, please add a comment describing the most recent
symptoms of the problem you are having and change the status of the bug to ASSIGNED.

If you are receiving this message in Issue Tracker, please reply with a message
to Issue Tracker about your results and I will update bugzilla for you.  If you
need assistance accessing ftp://partners.redhat.com, please contact your Partner
Manager.

Thank you
Comment 12 errata-xmlrpc 2008-05-21 14:40:54 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0314.html