Bug 103628

Summary:	dhclient crashes with floating point exception when DHCP server returns zero leasetime
Product:	[Retired] Red Hat Linux	Reporter:	Andrew Findlay <andrew.findlay>
Component:	dhcp	Assignee:	Daniel Walsh <dwalsh>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	9
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-09-05 20:40:21 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:

Description Andrew Findlay 2003-09-03 11:00:20 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.10 (X11; Linux i686; U;) Gecko/20030314

Description of problem:
DHCP servers return zero in the lease-time field to indicate an unlimited lease.
(BOOTP servers can only issue unlimited leases)

dhclient crashes with a Floating Point Exception when it gets zero lease time.

This has been spotted in other OSs, e.g.:

http://mail-index.netbsd.org/netbsd-users/2003/05/01/0005.html


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Set up a DHCP server to return zero (infinite) lease times
2. Set up RH9 Linux to obtain network info by DHCP
3. Activate the ethernet interface
    

Actual Results:  ifup fails, citing Floating Point Exception in /sbin/dhclient

Expected Results:  ifup should report OK and set the IP address for the interface

Additional info:

The component field should be 'dhclient' but Bugzilla does not have such a category.

Comment 1 Daniel Walsh 2003-09-05 20:40:21 UTC

I applied the documented patch.  Thanks.

dhcp-3_0pl2-6_15 in rawhide

Comment 2 John Flanagan 2004-12-21 19:42:19 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/RHBA-2004-566.html