Bug 156685

Summary:	CAN-2005-1369 i2c alarms sysfs DoS
Product:	[Fedora] Fedora	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Dave Jones <davej>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3	CC:	pfrields, wtogami
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-06-28 10:52:07 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 Mark J. Cox 2005-05-03 12:05:19 UTC

+++ This bug was initially created as a clone of Bug #156683 +++

The (1) it87 and (2) via686a drivers in I2C for Linux 2.6.x before
2.6.11.8, and 2.6.12 before 2.6.12-rc2, create the sysfs "alarms" file
with write permissions, which allows local users to cause a denial of
service (CPU consumption) by attempting to write to the file, which
does not have an associated store function.

See 
        http://archives.andrew.net.au/lm-sensors/msg31215.html

Comment 1 Dave Jones 2005-05-18 03:30:39 UTC

should be fixed in the 2.6.11.10 rebased update kernel currently in testing.

Comment 2 Mark J. Cox 2005-06-28 10:52:07 UTC

fixed FEDORA-2005-412