static void brcmf_set_join_pref(struct brcmf_if *ifp,
				struct cfg80211_bss_selection *bss_select)
{
	struct brcmf_join_pref_params join_pref_params[2];
	enum nl80211_band band;
	int err, i = 0;

	join_pref_params[i].len = 2;
	join_pref_params[i].rssi_gain = 0;

	if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF)
		brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO);

	switch (bss_select->behaviour) {
	case __NL80211_BSS_SELECT_ATTR_INVALID:
		brcmf_c_set_joinpref_default(ifp);
		return;
	case NL80211_BSS_SELECT_ATTR_BAND_PREF:
		join_pref_params[i].type = BRCMF_JOIN_PREF_BAND;
		band = bss_select->param.band_pref;
		join_pref_params[i].band = nl80211_band_to_fwil(band);
		i++;
		break;
	case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST:
		join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA;
		band = bss_select->param.adjust.band;
		join_pref_params[i].band = nl80211_band_to_fwil(band);
		join_pref_params[i].rssi_gain = bss_select->param.adjust.delta;
		i++;
		break;
	case NL80211_BSS_SELECT_ATTR_RSSI:
	default:
		break;
	}
	join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI;
	join_pref_params[i].len = 2;
	join_pref_params[i].rssi_gain = 0;
	join_pref_params[i].band = 0;
	err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
				       sizeof(join_pref_params));
	if (err)
		brcmf_err("Set join_pref error (%d)\n", err);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.