Linux kernel built with the IPv4 networking support(CONFIG_NET) is vulnerable to a DoS flaw. It could occur while using TCP Fast open option when initiating a network connection. This issue is a regression caused by upstream commit '355a901e6cf1', when it was back-ported to older 3.10.y - 3.16.y branches.
An unprivileged local user could use this flaw to crash the system resulting in DoS.
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1213955]
This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.