Mike O'Connor reported a local DoS on ia64 to vendor-sec on Jan 21
with a demo exploit.
This issue is embargoed with no date currently set.
The fix has been applied to 2.6:
public, removing embargo
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.