oss-security - Re: CVE request - kernel: integer overflow in ext4_ext_get

Date: Tue, 17 Aug 2010 11:37:20 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request - kernel: integer overflow in ext4_ext_get_blocks()

> Use CVE-2010-3015
>
> What does an attacker have to do to exploit this? Mount a crafted file
> system?

To trigger this, the attacker needs to write to the last block of a file 
(of max file size) and sync it.

Thanks, Eugene
-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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