A flaw was found in the method that the linux kernel handles userspace configuration of of the the Linux kernel's logical link control (LLC) implementation system settings. The incorrect handling allowed a trusted user to set multiple LLC syscalls with specially formatted data. Reading from these files also returned data from other sysctl settings that would be exposed via the same permissions to this user.
This bug provides little risk to users as the values that can be modified are exposed via proc sysctls with the same permissions.
This issue does not affect the versions of the kernel as shipped with Red Hat Enterprise Linux 5, 6 and 7, MRG and realtime kernels.