svn commit: r292440 - in head/sys: kern sys

[Oliver Pinter]

On 12/18/15, Mateusz Guzik <mjg at freebsd.org> wrote:
> Author: mjg
> Date: Fri Dec 18 16:33:15 2015
> New Revision: 292440
> URL: https://svnweb.freebsd.org/changeset/base/292440
>
> Log:
>   proc: fix a race which could result in dereference of bad p_pgrp pointer
> on fork
>
>   During fork p_starcopy - p_endcopy area of a process is populated with
> bcopy
>   with only proc lock held. Another forking thread can find such a process
> and
>   proceed to access p_pgrp included in said area.
>
>   Fix the problem by moving the field outside. It is being properly
> assigned
>   later.
>
>   Reviewed by:	kib
>   Diagnosed by:	kib
>   Tested by:	Fabian Keil <freebsd-listen fabiankeil.de>
>   MFC after:	10 days

Hi mjg@!

Just an MFC reminder and question: This patch is still needs on 10-STABLE?

>
> Modified:
>   head/sys/kern/kern_proc.c
>   head/sys/sys/proc.h
>
> Modified: head/sys/kern/kern_proc.c
>