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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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:
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