TITLE:
Linux Kernel Sysfs Local Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA19495

VERIFY ADVISORY:
http://secunia.com/advisories/19495/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

OPERATING SYSTEM:
Linux Kernel 2.6.x
http://secunia.com/product/2719/

DESCRIPTION:
A vulnerability has been reported in Linux Kernel, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to an out-of-bounds memory error in
the "fill_write_buffer()" function in sysfs/file.c when writing
exactly PAGE_SIZE amount of data with no zeroes in it to a sysfs
file.

SOLUTION:
The vulnerability has been fixed in version 2.6.17-rc1.

PROVIDED AND/OR DISCOVERED BY:
Al Viro

ORIGINAL ADVISORY:
http://svn.debian.org/wsvn/kernel/patch-tracking/CVE-2006-1055?op=file&rev=0&sc=0

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