Bug 156685 - CAN-2005-1369 i2c alarms sysfs DoS
CAN-2005-1369 i2c alarms sysfs DoS
Status: CLOSED ERRATA
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
3
All Linux
medium Severity medium
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Assigned To: Dave Jones
Brian Brock
: Security
Depends On:
Blocks:
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Reported: 2005-05-03 08:05 EDT by Mark J. Cox (Product Security)
Modified: 2015-01-04 17:19 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2005-06-28 06:52:07 EDT
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Description Mark J. Cox (Product Security) 2005-05-03 08:05:19 EDT
+++ 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 2005-05-17 23:30:39 EDT
should be fixed in the 2.6.11.10 rebased update kernel currently in testing.
Comment 2 Mark J. Cox (Product Security) 2005-06-28 06:52:07 EDT
fixed FEDORA-2005-412

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