Bug 177300

Summary: hugetlb_get_unmapped_area may overflow in X86_64 compat mode
Product: Red Hat Enterprise Linux 3 Reporter: Bastien Nocera <bnocera>
Component: kernelAssignee: Larry Woodman <lwoodman>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3.0CC: jparadis, nanhai.zou, petrides
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: RHSA-2007-0436 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-06-11 17:53:48 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:
Bug Depends On:    
Bug Blocks: 190430, 212183    
Attachments:
Description Flags
htest.c
none
compat_huge_tasksize.patch none

Description Bastien Nocera 2006-01-09 10:34:29 UTC
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 10:34:29 UTC
Created attachment 122942 [details]
htest.c

Comment 2 Bastien Nocera 2006-01-09 10:36:02 UTC
Created attachment 122943 [details]
compat_huge_tasksize.patch

Comment 10 Jay Turner 2007-02-20 12:47:40 UTC
QE ack for 3.9.

Comment 11 Ernie Petrides 2007-03-20 03:42:09 UTC
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 17:53:48 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-2007-0436.html