Bug 177300 – hugetlb_get_unmapped_area may overflow in X86_64 compat mode

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Bug 177300 - hugetlb_get_unmapped_area may overflow in X86_64 compat mode

Summary:	hugetlb_get_unmapped_area may overflow in X86_64 compat mode

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 3
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	3.0
Hardware:	x86_64 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Larry Woodman
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	190430 212183
	Show dependency tree / graph

Reported:	2006-01-09 05:34 EST by Bastien Nocera
Modified:	2007-11-30 17:07 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	RHSA-2007-0436
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-06-11 13:53:48 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
htest.c (509 bytes, text/plain) 2006-01-09 05:34 EST, Bastien Nocera	no flags	Details
compat_huge_tasksize.patch (2.13 KB, patch) 2006-01-09 05:36 EST, Bastien Nocera	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2007:0436	normal	SHIPPED_LIVE	Important: Updated kernel packages for Red Hat Enterprise Linux 3 Update 9	2007-06-07 20:03:57 EDT

Groups: None (edit)

Description Bastien Nocera 2006-01-09 05:34:29 EST

kernel 2.4.21-37.8.EL

The attached testcase segfaults when we should get a wrap-around at 4GB.

Comment 1 Bastien Nocera 2006-01-09 05:34:29 EST

Created attachment 122942 [details]
htest.c

Comment 2 Bastien Nocera 2006-01-09 05:36:02 EST

Created attachment 122943 [details]
compat_huge_tasksize.patch

Comment 10 Jay Turner 2007-02-20 07:47:40 EST

QE ack for 3.9.

Comment 11 Ernie Petrides 2007-03-19 23:42:09 EDT

A fix for this problem has just been committed to the RHEL3 U9
patch pool this evening (in kernel version 2.4.21-47.7.EL).

Comment 15 Red Hat Bugzilla 2007-06-11 13:53:48 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-2007-0436.html

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