diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c
index 5fa0af66cf3f..3aff27bb0a15 100644
--- a/kernel/time/namespace.c
+++ b/kernel/time/namespace.c
@@ -293,10 +293,12 @@ int proc_timens_set_offset(struct file *file, struct task_struct *p,
 			return -EINVAL;
 		}
 
-		if (off->val.tv_sec > KTIME_SEC_MAX ||
-		    off->val.tv_sec < -KTIME_SEC_MAX)
+		if (off->val.tv_sec > KTIME_SEC_MAX || off->val.tv_sec < -KTIME_SEC_MAX)
 			return -ERANGE;
 
+		if (off->val.tv_nsec < 0 || off->val.tv_nsec >= NSEC_PER_SEC)
+			return -EINVAL;
+
 		tp = timespec64_add(tp, off->val);
 		/*
 		 * KTIME_SEC_MAX is divided by 2 to be sure that KTIME_MAX is