IPv6 oops triggerable by any user

net/ipv6/tcpipv6.c in Linux kernel 2.6.x up to 2.6.21-rc3 inadvertently copies the ipv6flsocklist from a listening TCP socket to child sockets, which allows local users to cause a denial of service OOPS or double free by opening a listening IPv6 socket, attaching a flow label, and connecting to...