Kernel Log "TCP: Treason uncloaked!"

Solution 1:

You can get this message when people decide to "optimize" TCP parmameters on remote systems, but it could be a syn flood attack as well.

There were a few known Kernel bugs that caused this message to be appear in error. I believe they were fixed in the 2.6.26 kernel.

Solution 2:

The reson may be any of the following:

  1. Bad tcpstack parameters
  2. Remote attack
  3. Bugs in the kernel or network adapter driver ( I had these in the past with Intel EtherExpress PRO/100 and eepro100 driver )
  4. Faulty network adapter
  5. Damaged or bad cables