Re: CVE-2024-35840: mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()

[Michal Hocko]

On Mon 17-06-24 13:31:13, Greg KH wrote:
> On Mon, Jun 17, 2024 at 01:28:05PM +0200, Michal Hocko wrote:
> > On Thu 06-06-24 10:03:59, Michal Hocko wrote:
> > > Hi,
> > > what is the actual security threat here? As far as I can see, the
> > > problem that the commit requested here addresses seems to be rather
> > > functional, rather than responding to an unexpected packet options with
> > > a reset, we actually establish a connection with some garbage parameters
> > > (likely unpredictable). Which is unfortunate but I do not see any
> > > security implications.
> > 
> > Does the silence mean that there are no actual security implications
> > here?
> 
> Sorry, no, I was traveling and am still trying to catch up with the
> pending queue.  Should get to it later today or tomorrow, sorry for the
> delay.

Thanks!

-- 
Michal Hocko
SUSE Labs