mesh: Tighten IO and fix out-of-bounds array access

This fixes the out-of-bounds array access in mesh-io-mgmt.c caught
by address sanitizer. Similar fixes were applied earlier to
generic and unit IOs. With this patch, the common code is factored
into a centralized location.

1 files changed, 7 insertions, 0 deletions

diff --git a/mesh/mesh-io-api.h b/mesh/mesh-io-api.h
index 21c505cd0..ae51cbc55 100644
--- a/mesh/mesh-io-api.h
+++ b/mesh/mesh-io-api.h
@@ -34,6 +34,13 @@ struct mesh_io_api {
 	mesh_io_tx_cancel_t	cancel;
 };
 
+struct mesh_io_reg {
+	mesh_io_recv_func_t cb;
+	void *user_data;
+	uint8_t len;
+	uint8_t filter[];
+};
+
 struct mesh_io {
 	int				index;
 	int				favored_index;