OpenSSI at YAPC

I'm just back from YAPC at Ohio, YAPC being the Perl conference.
 I gave a talk on scaling Plack (a Perl version of the Rack Web
interface/toolkit idea) applications using OpenSSI.

Perl's thread interface is also implemented by a module
that's implemented in terms of forked processes using
IPC.  This is one option for writing a distributed cache without the
programming overhead of memcached.  I wrote Plack
middleware for doing session affinity (keeping user's sessions on
the same host) which is necessary for frameworks based on
coroutines (keeping execution contexts around for users).
Plack worker-processes can be automatically or manually
migrated.

This is a question that I could answer for myself but haven't yet
gotten around to (being busy with middlewares and hauling around
UPS batteries), but are the OpenSSI kernels patched against
Linux kernel exploits such as the somewhat recent protocol
structure buffer overflow?  I'm hoping to start handing out
accounts on this thing and I need to figure out how much I need
to vet my users.

Regards,
-scott

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