The JFS file system code in Linux 2.4.x has an information leak in which in-memory data is written to the device for the JFS file system, which allows local users to obtain sensitive information by reading the raw device.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10329
https://exchange.xforce.ibmcloud.com/vulnerabilities/15902
http://www.vupen.com/english/advisories/2005/1878
http://www.turbolinux.com/security/2004/TLSA-2004-14.txt
http://www.securityfocus.com/bid/10143
http://www.redhat.com/support/errata/RHSA-2005-663.html
http://www.redhat.com/support/errata/RHSA-2004-504.html
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