Report from Wei Wang of McAfee Avert Labs:
A locally exploitable flaw has been found in the Linux sctp module
sctp_make_abort_user function that allows local users to gain root privileges
and also execute arbitrary code at kernel privilege level.
committed in kernel 42.0.2
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.
committed in stream U5 build 42.4. A test kernel with this patch is available