Ben Martel and Stephen Blackheath discovered a DoS attack that a client of pppd
can make that can hang the server machine. The bug is in the Linux kernel 2.6
(tested on 2.6.9), but it looks like it also exists in the 2.4 series.
Created attachment 112045 [details]
Proposed patch from Paul Mackerras @IBM
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.