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Re: [PATCH] acpi: debugfs: fix buffer overflows, double free


From: "Steven M. Christey" <coley () rcf-smtp mitre org>
Date: Sat, 22 Jan 2011 15:13:29 -0500 (EST)


On Fri, 21 Jan 2011, Eugene Teo wrote:

On 01/21/2011 04:08 AM, Vasiliy Kulikov wrote:
File position is not controlled, it may lead to overwrites of arbitrary
kernel memory.  Also the code may kfree() the same pointer multiple
times.

http://lkml.org/lkml/2011/1/20/348
https://bugzilla.redhat.com/CVE-2011-0023

Please use CVE-2011-0023 (this does not include the unresolved flaw described in the following paragraph below).

There seem to be 2 types of issues described above - the uncontrolled file position / memory overwrite, and a "double free". So there should probably be 2 separate CVEs, not one. Am I missing something?

- Steve


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