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Don't leak stack content when reading the Xen suspend value. 

XXX pull-up to -6.
This commit is contained in:
jym 2012-07-22 19:30:19 +00:00
parent 217ea076e5
commit ede9b84cdc
1 changed files with 4 additions and 5 deletions
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9
sys/arch/xen/xen/xen_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: xen_machdep.c,v 1.11 2012/06/30 22:50:37 jym Exp $ */
/* $NetBSD: xen_machdep.c,v 1.12 2012/07/22 19:30:19 jym Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
@ -53,7 +53,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xen_machdep.c,v 1.11 2012/06/30 22:50:37 jym Exp $");
__KERNEL_RCSID(0, "$NetBSD: xen_machdep.c,v 1.12 2012/07/22 19:30:19 jym Exp $");
#include "opt_xen.h"
@ -247,7 +247,7 @@ sysctl_xen_suspend_setup(void)
CTL_CREATE, CTL_EOL);
sysctl_createv(NULL, 0, &node, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE | CTLFLAG_IMMEDIATE,
CTLTYPE_INT, "suspend",
SYSCTL_DESCR("Suspend/save current Xen domain"),
sysctl_xen_suspend, 0, NULL, 0,
@ -257,11 +257,10 @@ sysctl_xen_suspend_setup(void)
static int
sysctl_xen_suspend(SYSCTLFN_ARGS)
{
int error, t;
int error;
struct sysctlnode node;
node = *rnode;
node.sysctl_data = &t;
error = sysctl_lookup(SYSCTLFN_CALL(&node));
if (error || newp == NULL)