Comment 0 for bug 801482

net/ipv4/netfilter/ip_tables.c in the IPv4 implementation in the Linux
kernel before 2.6.39 does not place the expected '\0' character at the end
of string data in the values of certain structure members, which allows
local users to obtain potentially sensitive information from kernel memory
by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and
then reading the argument to the resulting modprobe process.