The bluez_sock_create function in the Bluetooth stack for Linux kernel 2.4.6 through 2.4.30-rc1 and 2.6 through 2.6.11.5 allows local users to gain privileges via (1) socket or (2) socketpair call with a negative protocol value.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11719
https://exchange.xforce.ibmcloud.com/vulnerabilities/19844
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152532
http://www.securityfocus.com/bid/12911
http://www.redhat.com/support/errata/RHSA-2005-366.html
http://www.redhat.com/support/errata/RHSA-2005-293.html
http://www.redhat.com/support/errata/RHSA-2005-284.html
http://www.redhat.com/support/errata/RHSA-2005-283.html
http://marc.info/?l=bugtraq&m=111204562102633&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2005-March/032913.html