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[src/trunk]: src/sys/compat/netbsd32 Validate input before converting timeval...
details: https://anonhg.NetBSD.org/src/rev/d636a6f9f658
branches: trunk
changeset: 965903:d636a6f9f658
user: kamil <kamil%NetBSD.org@localhost>
date: Sat Oct 05 14:19:53 2019 +0000
description:
Validate input before converting timeval::tv_usec in compat/netbsd32
diffstat:
sys/compat/netbsd32/netbsd32_compat_50.c | 8 ++++++--
sys/compat/netbsd32/netbsd32_time.c | 9 ++++++---
2 files changed, 12 insertions(+), 5 deletions(-)
diffs (63 lines):
diff -r 9e0495589bc8 -r d636a6f9f658 sys/compat/netbsd32/netbsd32_compat_50.c
--- a/sys/compat/netbsd32/netbsd32_compat_50.c Sat Oct 05 12:57:40 2019 +0000
+++ b/sys/compat/netbsd32/netbsd32_compat_50.c Sat Oct 05 14:19:53 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: netbsd32_compat_50.c,v 1.40 2019/09/20 15:09:07 kamil Exp $ */
+/* $NetBSD: netbsd32_compat_50.c,v 1.41 2019/10/05 14:19:53 kamil Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_50.c,v 1.40 2019/09/20 15:09:07 kamil Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_50.c,v 1.41 2019/10/05 14:19:53 kamil Exp $");
#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
@@ -216,6 +216,10 @@
return error;
netbsd32_to_timeval50(&atv32, &atv);
+
+ if (atv.tv_usec < 0 || atv.tv_usec >= 1000000)
+ return EINVAL;
+
TIMEVAL_TO_TIMESPEC(&atv, &ats);
return settime(p, &ats);
}
diff -r 9e0495589bc8 -r d636a6f9f658 sys/compat/netbsd32/netbsd32_time.c
--- a/sys/compat/netbsd32/netbsd32_time.c Sat Oct 05 12:57:40 2019 +0000
+++ b/sys/compat/netbsd32/netbsd32_time.c Sat Oct 05 14:19:53 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: netbsd32_time.c,v 1.52 2019/09/26 01:30:00 christos Exp $ */
+/* $NetBSD: netbsd32_time.c,v 1.53 2019/10/05 14:19:53 kamil Exp $ */
/*
* Copyright (c) 1998, 2001 Matthew R. Green
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_time.c,v 1.52 2019/09/26 01:30:00 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_time.c,v 1.53 2019/10/05 14:19:53 kamil Exp $");
#if defined(_KERNEL_OPT)
#include "opt_ntp.h"
@@ -243,6 +243,10 @@
return error;
netbsd32_to_timeval(&atv32, &atv);
+
+ if (atv.tv_usec < 0 || atv.tv_usec >= 1000000)
+ return EINVAL;
+
TIMEVAL_TO_TIMESPEC(&atv, &ats);
return settime(p, &ats);
}
@@ -546,4 +550,3 @@
}
return copyout(&clock_id, SCARG_P32(uap, clock_id), sizeof(clock_id));
}
-
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