Bug 173155 - kernel dm: DM_LIST_VERSIONS_CMD ioctl reponse truncated
Summary: kernel dm: DM_LIST_VERSIONS_CMD ioctl reponse truncated
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Alasdair Kergon
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks: 168429
TreeView+ depends on / blocked
 
Reported: 2005-11-14 18:21 UTC by Alasdair Kergon
Modified: 2007-11-30 22:07 UTC (History)
1 user (show)

Fixed In Version: RHSA-2006-0132
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-03-07 20:42:49 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:808 0 normal SHIPPED_LIVE Important: kernel security update 2005-10-27 04:00:00 UTC
Red Hat Product Errata RHSA-2006:0132 0 qe-ready SHIPPED_LIVE Moderate: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 3 2006-03-09 16:31:00 UTC

Description Alasdair Kergon 2005-11-14 18:21:44 UTC 
In some circumstances the LIST_VERSIONS (dmsetup targets) output is truncated
because the size calculation forgets about a 'uint32_t' in each
structure - but the inclusion of the whole of ALIGN_MASK frequently
compensates for the omission.
                                                                                
(This is a quick workaround to use an upper bound.  The code ought
to be fixed to supply the actual size.)

As a result of this bug, 'lvcreate --type error' fails when it shouldn't.
Comment 1 Alasdair Kergon 2005-11-14 19:17:51 UTC 
dm-list-targets-fix.patch
Comment 6 Red Hat Bugzilla 2006-03-07 20:42:49 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/RHSA-2006-0132.html
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