[src/netbsd-8]: src/sys/kern Pull up following revision(s) (requested by maxv...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5fbd88b96be4
branches:  netbsd-8
changeset: 446315:5fbd88b96be4
user:      martin <martin%NetBSD.org@localhost>
date:      Fri Nov 30 10:32:22 2018 +0000

description:
Pull up following revision(s) (requested by maxv in ticket #1114):

        sys/kern/kern_exit.c: revision 1.273

Fix info leak. There is one branch where 'status' is not initialized at
all.

        + Possible info leak: [len=4, leaked=4]
        | #0 0xffffffff80baf397 in kleak_copyout
        | #1 0xffffffff80b56d0c in sys_wait6
        | #2 0xffffffff80259c42 in syscall

diffstat:

 sys/kern/kern_exit.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 150e5d442b8a -r 5fbd88b96be4 sys/kern/kern_exit.c
--- a/sys/kern/kern_exit.c      Fri Nov 30 10:28:46 2018 +0000
+++ b/sys/kern/kern_exit.c      Fri Nov 30 10:32:22 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_exit.c,v 1.268.8.1 2018/04/12 13:42:48 martin Exp $       */
+/*     $NetBSD: kern_exit.c,v 1.268.8.2 2018/11/30 10:32:22 martin Exp $       */
 
 /*-
  * Copyright (c) 1998, 1999, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -67,7 +67,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.268.8.1 2018/04/12 13:42:48 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.268.8.2 2018/11/30 10:32:22 martin Exp $");
 
 #include "opt_ktrace.h"
 #include "opt_dtrace.h"
@@ -661,6 +661,7 @@
        if (child == NULL) {
                mutex_exit(proc_lock);
                *pid = 0;
+               *status = 0;
                return error;
        }
        *pid = child->p_pid;