Bill Rugolsky mailed Alan Cox about a trivial unprivileged local DoS.
Linus merged this upstream with a sanitised description.
This is also included in patch-2.6.10-ac8 but does not seem to appear
in RHEL4 GA or 0Day kernels.
Patch has been submitted to rhkernel-list:
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.