The XFS file system code in Linux 2.4.x has an information leak in which in-memory data is written to the device for the XFS file system, which allows local users to obtain sensitive information by reading the raw device.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15901
http://www.securityfocus.com/bid/10151
http://www.mandriva.com/security/advisories?name=MDKSA-2004:029
http://www.linuxsecurity.com/advisories/engarde_advisory-4285.html
http://security.gentoo.org/glsa/glsa-200407-02.xml