From: Thomas Gleixner <tglx@linutronix.de>

Check if the timespec which is provided from user space is normalized.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 kernel/time.c |    3 +++
 1 files changed, 3 insertions(+)

diff -puN kernel/time.c~hrtimer-validate-timespec-of-do_sys_settimeofday kernel/time.c
--- devel/kernel/time.c~hrtimer-validate-timespec-of-do_sys_settimeofday	2005-12-09 00:01:47.000000000 -0800
+++ devel-akpm/kernel/time.c	2005-12-09 00:01:47.000000000 -0800
@@ -154,6 +154,9 @@ int do_sys_settimeofday(struct timespec 
 	static int firsttime = 1;
 	int error = 0;
 
+	if (!timespec_valid(tv))
+		return -EINVAL;
+
 	error = security_settime(tv, tz);
 	if (error)
 		return error;
_