Linux kernel mremap-unmap exploit

As stated in the advisory published by iSEC Security Research: "A critical security vulnerability has been found in the Linux kernel memory management code inside the mremap(2) system call due to missing function return value check. [...] Proper exploitation of this vulnerability leads to local privilege escalation giving an attacker full super-user privileges." Vulnerable versions of the Linux kernel: "2.2 up to and including 2.2.25, 2.4 up to to and including 2.4.24, 2.6 up to to and including 2.6.2". Upon successful exploitation, this module will deploy a new agent.