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Bug 174338

Summary: CVE-2005-3857 lease printk DoS
Product: Red Hat Enterprise Linux 3 Reporter: Mark J. Cox <mjc>
Component: kernelAssignee: Peter Staubach <staubach>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3.0CC: petrides
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: public=20051113,reported=20051128,source=cve,impact=moderate
Fixed In Version: RHSA-2006-0140 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-01-19 16:02:02 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:
Attachments:
Description Flags
Proposed patch none

Description Mark J. Cox 2005-11-28 10:16:49 UTC 
+++ This bug was initially created as a clone of Bug #174337 +++

CVE-2005-3857 lease DoS
        The time_out_leases function in locks.c for Linux kernel
        before 2.6.15 allows local users to cause a denial of service
        (kernel log message consumption) by causing a large number of
        broken leases, which is recorded to the log using the printk
        function.

fix (remove printk):
http://linux.bkbits.net:8080/linux-2.6/cset@437a05c4iitlvmAoQbx7eisMxOEosw

thread:
http://marc.theaimsgroup.com/?l=linux-kernel&m=113175851920568&w=2

Listing as moderate, but may be updated to important based on kernel team
investigation.
Comment 1 Peter Staubach 2005-12-06 15:23:44 UTC 
Created attachment 121911 [details]
Proposed patch
Comment 3 Ernie Petrides 2006-01-11 23:35:31 UTC 
A fix for this problem has just been committed to the RHEL3 E7
patch pool this evening (in kernel version 2.4.21-37.0.1.EL).
Comment 6 Red Hat Bugzilla 2006-01-19 16:02:03 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-2006-0140.html
Comment 7 Ernie Petrides 2006-01-20 23:31:23 UTC 
A fix for this problem has also been committed to the RHEL3 U7
patch pool this evening (in kernel version 2.4.21-39.EL).