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Bug 158878 - CAN-2005-1265 Prevent NULL mmap in topdown model
CAN-2005-1265 Prevent NULL mmap in topdown model
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.0
All Linux
medium Severity high
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Assigned To: Rik van Riel
Brian Brock
public=20050519,impact=important,sour...
: Security
Depends On:
Blocks: 156322
  Show dependency treegraph
 
Reported: 2005-05-26 10:39 EDT by Mark J. Cox (Product Security)
Modified: 2007-11-30 17:07 EST (History)
4 users (show)

See Also:
Fixed In Version: RHSA-2005-514
Doc Type: Bug Fix
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Last Closed: 2005-10-05 09:17:39 EDT
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Description Mark J. Cox (Product Security) 2005-05-26 10:39:21 EDT
Chris wright reported a problem with the topdown allocator.  This issue is
believed to allow a crash, but not result in gaining privileges (most likely due
to the BUG() cases added to 2.6 after a previous exploit).  

We didn't check RHEL4 specifically to determine if this issue affect our shipped
version.   More details see

http://marc.theaimsgroup.com/?l=bk-commits-head&m=111651913006107
    
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=07ab67c8d0d7c1021343b7d5c045033d6bf7be69
Comment 2 Rik van Riel 2005-07-11 17:26:40 EDT
I just submitted a patch.
Comment 9 Red Hat Bugzilla 2005-10-05 09:17:40 EDT
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/RHSA-2005-514.html

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