diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index 6c7326c93721c495c4e61a73cac2dfaf9a5bc8fc..fd01c9306e66ce9d77c74748bffcae1546cb5298 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -48,6 +48,9 @@ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
 		return 0;
 	if (mt)
 		return mt->num_slots != num_slots ? -EINVAL : 0;
+	/* Arbitrary limit for avoiding too large memory allocation. */
+	if (num_slots > 1024)
+		return -EINVAL;
 
 	mt = kzalloc(struct_size(mt, slots, num_slots), GFP_KERNEL);
 	if (!mt)