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Bug 456052 - kernel: fix array out of bounds when mounting with selinux options [rhel-5.3]
Summary: kernel: fix array out of bounds when mounting with selinux options [rhel-5.3]
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Eugene Teo (Security Response)
QA Contact: Martin Jenner
Depends On: 456051
TreeView+ depends on / blocked
Reported: 2008-07-21 08:53 UTC by Eugene Teo (Security Response)
Modified: 2009-01-20 20:22 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-01-20 20:22:37 UTC
Target Upstream Version:

Attachments (Terms of Use)
Upstream patch for this issue (deleted)
2008-07-21 08:54 UTC, Eugene Teo (Security Response)
no flags Details | Diff

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:0225 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.3 kernel security and bug fix update 2009-01-20 16:06:24 UTC

Description Eugene Teo (Security Response) 2008-07-21 08:53:08 UTC
+++ This bug was initially created as a clone of Bug #456051 +++

Description of problem:
Given an illegal selinux option it was possible for match_token to work in
random memory at the end of the match_table_t array.

Note that privilege is required to perform a context mount, so this issue is
effectively limited to root only.

-- Additional comment from on 2008-07-21 04:49 EST --
Proposed upstream patch:;a=commitdiff;h=31e879309474d1666d645b96de99d0b682fa055f

Comment 1 Eugene Teo (Security Response) 2008-07-21 08:54:23 UTC
Created attachment 312236 [details]
Upstream patch for this issue

Comment 3 RHEL Product and Program Management 2008-07-21 13:42:03 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

Comment 5 Don Zickus 2008-07-25 20:26:54 UTC
in kernel-2.6.18-100.el5
You can download this test kernel from

Comment 9 errata-xmlrpc 2009-01-20 20:22:37 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 therefore 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.

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