From: Jesper Dangaard Brouer <redacted>
Date: Wed, 27 Jun 2012 08:32:13 +0200

Using it as default, might be "dangerous" and open an attack vector
on SYN cookies in Linux.

If it's dangerous for syncookies then it's just as dangerous for
the routing hash and the socket hashes where we use it already.

Therefore, this sounds like a baseless claim to me.