The Linux kernel before 2.6.31-rc7 does not initialize certain data structures within getname functions, which allows local users to read the contents of some kernel memory locations by calling getsockname on (1) an AF_APPLETALK socket, related to the atalk_getname function in net/appletalk/ddp.c; (2) an AF_IRDA socket, related to the irda_getname function in net/irda/af_irda.c; (3) an AF_ECONET socket, related to the econet_getname function in net/econet/af_econet.c; (4) an AF_NETROM socket, related to the nr_getname function in net/netrom/af_netrom.c; (5) an AF_ROSE socket, related to the rose_getname function in net/rose/af_rose.c; or (6) a raw CAN socket, related to the raw_getname function in net/can/raw.c.
https://rhn.redhat.com/errata/RHSA-2009-1550.html
https://rhn.redhat.com/errata/RHSA-2009-1540.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11741
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11611
http://www.ubuntu.com/usn/USN-852-1
http://www.securityfocus.com/archive/1/512019/100/0/threaded
http://www.openwall.com/lists/oss-security/2009/08/27/2
http://www.openwall.com/lists/oss-security/2009/08/27/1
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc7
http://www.exploit-db.com/exploits/9521
http://secunia.com/advisories/37351
http://secunia.com/advisories/37105
http://secunia.com/advisories/36438
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html