From Vilmos Nebehaj:
When creating a new connection by sending an unknown chunk type, we don't
transition to a valid state, causing a NULL pointer dereference in sctp_packet
when accessing sctp_timeouts[SCTP_CONNTRACK_NONE].
A patch for this issue has been included in build 2.6.18-8.1.9.
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.