diff --git a/[refs] b/[refs]
index 0e08f77cd540..0cfcf068b336 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5f82b2b77e66d452c3037cc47f436d2d76fd5f06
+refs/heads/master: 718bcceb5ad72a5def2c2fd1fa3ef964be32a857
diff --git a/trunk/kernel/time.c b/trunk/kernel/time.c
index bbc8ca194b59..c689b53297cf 100644
--- a/trunk/kernel/time.c
+++ b/trunk/kernel/time.c
@@ -154,6 +154,9 @@ int do_sys_settimeofday(struct timespec *tv, struct timezone *tz)
 	static int firsttime = 1;
 	int error = 0;
 
+	if (!timespec_valid(tv))
+		return -EINVAL;
+
 	error = security_settime(tv, tz);
 	if (error)
 		return error;