Example Sin

The following entry in Common Vulnerabilities and Exposures (CVE) at http:// cve.mitre.org is an example of this sin.

CAN-2004-0077 Linux Kernel do_mremap

This is probably the most famous forgot to check the return value bug in recent history because many Internet-connected Linux machines were compromised through this bug. Theres a great write-up by the finders , and sample exploit code at http://isec.pl/vulnerabilities/isec-0014-mremap-unmap.txt.

Note 

There were a cluster of Linux Kernel memory manager security bugs in late 2003 and early 2004, including two bugs in this area, so do not confuse this bug with the other remap bug: CAN-2003-0985.