static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
{
	struct brcmf_pub *drvr = ifp->drvr;
	const struct ieee80211_iface_combination *combo;
	struct ieee80211_supported_band *band;
	u16 max_interfaces = 0;
	__le32 bandlist[3];
	u32 n_bands;
	int err, i;

	wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
	wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
	wiphy->max_num_pmkids = BRCMF_MAXPMKID;

	err = brcmf_setup_ifmodes(wiphy, ifp);
	if (err)
		return err;

	for (i = 0, combo = wiphy->iface_combinations;
	     i < wiphy->n_iface_combinations; i++, combo++) {
		max_interfaces = max(max_interfaces, combo->max_interfaces);
	}

	for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses);
	     i++) {
		u8 *addr = drvr->addresses[i].addr;

		memcpy(addr, drvr->mac, ETH_ALEN);
		if (i) {
			addr[0] |= BIT(1);
			addr[ETH_ALEN - 1] ^= i;
		}
	}
	wiphy->addresses = drvr->addresses;
	wiphy->n_addresses = i;

	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
	wiphy->cipher_suites = brcmf_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites);
	if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
		wiphy->n_cipher_suites--;
	wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) |
				    BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) |
				    BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST);

	wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
			WIPHY_FLAG_OFFCHAN_TX |
			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS))
		wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
	if (!ifp->drvr->settings->roamoff)
		wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
	wiphy->mgmt_stypes = brcmf_txrx_stypes;
	wiphy->max_remain_on_channel_duration = 5000;
	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO))
		brcmf_wiphy_pno_params(wiphy);

	/* vendor commands/events support */
	wiphy->vendor_commands = brcmf_vendor_cmds;
	wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;

	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
		brcmf_wiphy_wowl_params(wiphy, ifp);
	err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist,
				     sizeof(bandlist));
	if (err) {
		brcmf_err("could not obtain band info: err=%d\n", err);
		return err;
	}
	/* first entry in bandlist is number of bands */
	n_bands = le32_to_cpu(bandlist[0]);
	for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) {
		if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) {
			band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
				       GFP_KERNEL);
			if (!band)
				return -ENOMEM;

			band->channels = kmemdup(&__wl_2ghz_channels,
						 sizeof(__wl_2ghz_channels),
						 GFP_KERNEL);
			if (!band->channels) {
				kfree(band);
				return -ENOMEM;
			}

			band->n_channels = ARRAY_SIZE(__wl_2ghz_channels);
			wiphy->bands[NL80211_BAND_2GHZ] = band;
		}
		if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) {
			band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz),
				       GFP_KERNEL);
			if (!band)
				return -ENOMEM;

			band->channels = kmemdup(&__wl_5ghz_channels,
						 sizeof(__wl_5ghz_channels),
						 GFP_KERNEL);
			if (!band->channels) {
				kfree(band);
				return -ENOMEM;
			}

			band->n_channels = ARRAY_SIZE(__wl_5ghz_channels);
			wiphy->bands[NL80211_BAND_5GHZ] = band;
		}
	}
	err = brcmf_setup_wiphybands(wiphy);
	return 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.