brcmf_configure_wpaie(struct brcmf_if *ifp,
		      const struct brcmf_vs_tlv *wpa_ie,
		      bool is_rsn_ie)
{
	u32 auth = 0; /* d11 open authentication */
	u16 count;
	s32 err = 0;
	s32 len;
	u32 i;
	u32 wsec;
	u32 pval = 0;
	u32 gval = 0;
	u32 wpa_auth = 0;
	u32 offset;
	u8 *data;
	u16 rsn_cap;
	u32 wme_bss_disable;
	u32 mfp;

	brcmf_dbg(TRACE, "Enter\n");
	if (wpa_ie == NULL)
		goto exit;

	len = wpa_ie->len + TLV_HDR_LEN;
	data = (u8 *)wpa_ie;
	offset = TLV_HDR_LEN;
	if (!is_rsn_ie)
		offset += VS_IE_FIXED_HDR_LEN;
	else
		offset += WPA_IE_VERSION_LEN;

	/* check for multicast cipher suite */
	if (offset + WPA_IE_MIN_OUI_LEN > len) {
		err = -EINVAL;
		brcmf_err("no multicast cipher suite\n");
		goto exit;
	}

	if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
		err = -EINVAL;
		brcmf_err("ivalid OUI\n");
		goto exit;
	}
	offset += TLV_OUI_LEN;

	/* pick up multicast cipher */
	switch (data[offset]) {
	case WPA_CIPHER_NONE:
		gval = 0;
		break;
	case WPA_CIPHER_WEP_40:
	case WPA_CIPHER_WEP_104:
		gval = WEP_ENABLED;
		break;
	case WPA_CIPHER_TKIP:
		gval = TKIP_ENABLED;
		break;
	case WPA_CIPHER_AES_CCM:
		gval = AES_ENABLED;
		break;
	default:
		err = -EINVAL;
		brcmf_err("Invalid multi cast cipher info\n");
		goto exit;
	}

	offset++;
	/* walk thru unicast cipher list and pick up what we recognize */
	count = data[offset] + (data[offset + 1] << 8);
	offset += WPA_IE_SUITE_COUNT_LEN;
	/* Check for unicast suite(s) */
	if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
		err = -EINVAL;
		brcmf_err("no unicast cipher suite\n");
		goto exit;
	}
	for (i = 0; i < count; i++) {
		if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
			err = -EINVAL;
			brcmf_err("ivalid OUI\n");
			goto exit;
		}
		offset += TLV_OUI_LEN;
		switch (data[offset]) {
		case WPA_CIPHER_NONE:
			break;
		case WPA_CIPHER_WEP_40:
		case WPA_CIPHER_WEP_104:
			pval |= WEP_ENABLED;
			break;
		case WPA_CIPHER_TKIP:
			pval |= TKIP_ENABLED;
			break;
		case WPA_CIPHER_AES_CCM:
			pval |= AES_ENABLED;
			break;
		default:
			brcmf_err("Invalid unicast security info\n");
		}
		offset++;
	}
	/* walk thru auth management suite list and pick up what we recognize */
	count = data[offset] + (data[offset + 1] << 8);
	offset += WPA_IE_SUITE_COUNT_LEN;
	/* Check for auth key management suite(s) */
	if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
		err = -EINVAL;
		brcmf_err("no auth key mgmt suite\n");
		goto exit;
	}
	for (i = 0; i < count; i++) {
		if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
			err = -EINVAL;
			brcmf_err("ivalid OUI\n");
			goto exit;
		}
		offset += TLV_OUI_LEN;
		switch (data[offset]) {
		case RSN_AKM_NONE:
			brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
			wpa_auth |= WPA_AUTH_NONE;
			break;
		case RSN_AKM_UNSPECIFIED:
			brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
			is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
				    (wpa_auth |= WPA_AUTH_UNSPECIFIED);
			break;
		case RSN_AKM_PSK:
			brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
			is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
				    (wpa_auth |= WPA_AUTH_PSK);
			break;
		case RSN_AKM_SHA256_PSK:
			brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n");
			wpa_auth |= WPA2_AUTH_PSK_SHA256;
			break;
		case RSN_AKM_SHA256_1X:
			brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n");
			wpa_auth |= WPA2_AUTH_1X_SHA256;
			break;
		default:
			brcmf_err("Invalid key mgmt info\n");
		}
		offset++;
	}

	mfp = BRCMF_MFP_NONE;
	if (is_rsn_ie) {
		wme_bss_disable = 1;
		if ((offset + RSN_CAP_LEN) <= len) {
			rsn_cap = data[offset] + (data[offset + 1] << 8);
			if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
				wme_bss_disable = 0;
			if (rsn_cap & RSN_CAP_MFPR_MASK) {
				brcmf_dbg(TRACE, "MFP Required\n");
				mfp = BRCMF_MFP_REQUIRED;
				/* Firmware only supports mfp required in
				 * combination with WPA2_AUTH_PSK_SHA256 or
				 * WPA2_AUTH_1X_SHA256.
				 */
				if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 |
						  WPA2_AUTH_1X_SHA256))) {
					err = -EINVAL;
					goto exit;
				}
				/* Firmware has requirement that WPA2_AUTH_PSK/
				 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI
				 * is to be included in the rsn ie.
				 */
				if (wpa_auth & WPA2_AUTH_PSK_SHA256)
					wpa_auth |= WPA2_AUTH_PSK;
				else if (wpa_auth & WPA2_AUTH_1X_SHA256)
					wpa_auth |= WPA2_AUTH_UNSPECIFIED;
			} else if (rsn_cap & RSN_CAP_MFPC_MASK) {
				brcmf_dbg(TRACE, "MFP Capable\n");
				mfp = BRCMF_MFP_CAPABLE;
			}
		}
		offset += RSN_CAP_LEN;
		/* set wme_bss_disable to sync RSN Capabilities */
		err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
					       wme_bss_disable);
		if (err < 0) {
			brcmf_err("wme_bss_disable error %d\n", err);
			goto exit;
		}

		/* Skip PMKID cnt as it is know to be 0 for AP. */
		offset += RSN_PMKID_COUNT_LEN;

		/* See if there is BIP wpa suite left for MFP */
		if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) &&
		    ((offset + WPA_IE_MIN_OUI_LEN) <= len)) {
			err = brcmf_fil_bsscfg_data_set(ifp, "bip",
							&data[offset],
							WPA_IE_MIN_OUI_LEN);
			if (err < 0) {
				brcmf_err("bip error %d\n", err);
				goto exit;
			}
		}
	}
	/* FOR WPS , set SES_OW_ENABLED */
	wsec = (pval | gval | SES_OW_ENABLED);

	/* set auth */
	err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
	if (err < 0) {
		brcmf_err("auth error %d\n", err);
		goto exit;
	}
	/* set wsec */
	err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
	if (err < 0) {
		brcmf_err("wsec error %d\n", err);
		goto exit;
	}
	/* Configure MFP, this needs to go after wsec otherwise the wsec command
	 * will overwrite the values set by MFP
	 */
	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) {
		err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp);
		if (err < 0) {
			brcmf_err("mfp error %d\n", err);
			goto exit;
		}
	}
	/* set upper-layer auth */
	err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
	if (err < 0) {
		brcmf_err("wpa_auth error %d\n", err);
		goto exit;
	}

exit:
	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.