A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a memory corruption in drivers/net/tokenring/ibmtr.c, which can be exploited to cause a DoS by sending specially crafted packet to a vulnerable system.
http://www.linuxlinks.com/portal/news/article.php?story=20070115134840547