[src/trunk]: src/sys/kern Fix kernel info leaks.

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

details:   https://anonhg.NetBSD.org/src/rev/e5eeb716c5a2
branches:  trunk
changeset: 448379:e5eeb716c5a2
user:      maxv <maxv%NetBSD.org@localhost>
date:      Thu Jan 31 20:09:05 2019 +0000

description:
Fix kernel info leaks.

diffstat:

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

diffs (26 lines):

diff -r 0df1a54918d8 -r e5eeb716c5a2 sys/kern/kern_time.c
--- a/sys/kern/kern_time.c      Thu Jan 31 18:21:21 2019 +0000
+++ b/sys/kern/kern_time.c      Thu Jan 31 20:09:05 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_time.c,v 1.193 2018/11/29 17:40:12 maxv Exp $     */
+/*     $NetBSD: kern_time.c,v 1.194 2019/01/31 20:09:05 maxv Exp $     */
 
 /*-
  * Copyright (c) 2000, 2004, 2005, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -61,7 +61,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_time.c,v 1.193 2018/11/29 17:40:12 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_time.c,v 1.194 2019/01/31 20:09:05 maxv Exp $");
 
 #include <sys/param.h>
 #include <sys/resourcevar.h>
@@ -524,6 +524,7 @@
        extern int64_t time_adjtime;  /* in kern_ntptime.c */
 
        if (olddelta) {
+               memset(olddelta, 0, sizeof(*olddelta));
                mutex_spin_enter(&timecounter_lock);
                olddelta->tv_sec = time_adjtime / 1000000;
                olddelta->tv_usec = time_adjtime % 1000000;