A security issue with an unknown impact has been reported in Linux Kernel.
The vulnerability is caused due to an error in drivers/isdn/i4l/isdn_ppp.c as the "isdn_ppp_ccp_reset_alloc_state()" function never initialises an event timer before scheduling it with the "add_timer()" function.
http://www.linuxlinks.com/portal/news/article.php?story=20061229114731782