Bug 661182 (CVE-2010-4343)

Summary:	CVE-2010-4343 kernel: bfa driver sysfs crash
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	coughlan, dhoward, kernel-mgr, lwang, plyons, pmatouse, revers, rkhan, vkrizan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-07-29 13:30:27 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:	659880
Bug Blocks:

Description Eugene Teo (Security Response) 2010-12-08 02:23:57 UTC

The port data structure related to fc_host statistics collection is not initialized. This causes system crash when reading the fc_host statistics. The fix is to initialize port structure during driver attach.

This can be triggered by reading the fc statistics files under /sys/class/fc_host/host#/statistics.

A bfa adapter must be present in the system for the problem to occur.

Upstream commit:
http://git.kernel.org/linus/7873ca4e4401f0ecd8868bf1543113467e6bae61

Reference:
http://www.spinics.net/lists/linux-scsi/msg43772.html

Comment 3 Eugene Teo (Security Response) 2010-12-20 06:34:01 UTC

Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat
Enterprise Linux 4 as it did not include support for the Brocade Fibre Channel Host Bus Adapter driver. It did not affect the version of Linux kernels as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as they have the included the fix for this issue. A future kernel update in Red Hat Enterprise Linux 5 may address this flaw.

Comment 4 errata-xmlrpc 2011-01-13 22:03:22 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html

Comment 5 errata-xmlrpc 2011-01-14 09:03:40 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html