[Midnightbsd-cvs] src: sys_pipe.c: Stop unprivileged processes from reading pages of

[laffer1 at midnightbsd.org]

Log Message:
-----------
Stop unprivileged processes from reading pages of memory belonging to other processes with anonymous pipes.

Tags:
----
RELENG_0_2

Modified Files:
--------------
    src/sys/kern:
        sys_pipe.c (r1.2 -> r1.2.2.1)
        (http://cvsweb.midnightbsd.org/src/sys/kern/sys_pipe.c?r1=1.2&r2=1.2.2.1)