diff --git a/include/zephyr/bluetooth/l2cap.h b/include/zephyr/bluetooth/l2cap.h
index 064b9749547f8..4def9ac7d80de 100644
--- a/include/zephyr/bluetooth/l2cap.h
+++ b/include/zephyr/bluetooth/l2cap.h
@@ -462,6 +462,9 @@ struct bt_l2cap_server {
 	 *  This callback is called whenever a new incoming connection requires
 	 *  authorization.
 	 *
+	 *  @warning It is the responsibility of this callback to zero out the
+	 *  parent of the chan object.
+	 *
 	 *  @param conn The connection that is requesting authorization
 	 *  @param server Pointer to the server structure this callback relates to
 	 *  @param chan Pointer to received the allocated channel
@@ -516,6 +519,9 @@ int bt_l2cap_br_server_register(struct bt_l2cap_server *server);
  *  each channel connected() callback will be called. If the connection is
  *  rejected disconnected() callback is called instead.
  *
+ *  @warning It is the responsibility of the caller to zero out the
+ *  parents of the chan objects.
+ *
  *  @param conn Connection object.
  *  @param chans Array of channel objects.
  *  @param psm Channel PSM to connect to.
@@ -551,6 +557,9 @@ int bt_l2cap_ecred_chan_reconfigure(struct bt_l2cap_chan **chans, uint16_t mtu);
  *  the location (address) of bt_l2cap_chan type object which is a member
  *  of both transport dedicated objects.
  *
+ *  @warning It is the responsibility of the caller to zero out the
+ *  parent of the chan object.
+ *
  *  @param conn Connection object.
  *  @param chan Channel object.
  *  @param psm Channel PSM to connect to.