brcmf_notify_connect_status(struct brcmf_if *ifp,
			    const struct brcmf_event_msg *e, void *data)
{
	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
	struct net_device *ndev = ifp->ndev;
	struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
	struct ieee80211_channel *chan;
	s32 err = 0;

	if ((e->event_code == BRCMF_E_DEAUTH) ||
	    (e->event_code == BRCMF_E_DEAUTH_IND) ||
	    (e->event_code == BRCMF_E_DISASSOC_IND) ||
	    ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
		brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
	}

	if (brcmf_is_apmode(ifp->vif)) {
		err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
	} else if (brcmf_is_linkup(e)) {
		brcmf_dbg(CONN, "Linkup\n");
		if (brcmf_is_ibssmode(ifp->vif)) {
			brcmf_inform_ibss(cfg, ndev, e->addr);
			chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
			memcpy(profile->bssid, e->addr, ETH_ALEN);
			cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
			clear_bit(BRCMF_VIF_STATUS_CONNECTING,
				  &ifp->vif->sme_state);
			set_bit(BRCMF_VIF_STATUS_CONNECTED,
				&ifp->vif->sme_state);
		} else
			brcmf_bss_connect_done(cfg, ndev, e, true);
		brcmf_net_setcarrier(ifp, true);
	} else if (brcmf_is_linkdown(e)) {
		brcmf_dbg(CONN, "Linkdown\n");
		if (!brcmf_is_ibssmode(ifp->vif)) {
			brcmf_bss_connect_done(cfg, ndev, e, false);
			brcmf_link_down(ifp->vif,
					brcmf_map_fw_linkdown_reason(e));
			brcmf_init_prof(ndev_to_prof(ndev));
			if (ndev != cfg_to_ndev(cfg))
				complete(&cfg->vif_disabled);
			brcmf_net_setcarrier(ifp, false);
		}
	} else if (brcmf_is_nonetwork(cfg, e)) {
		if (brcmf_is_ibssmode(ifp->vif))
			clear_bit(BRCMF_VIF_STATUS_CONNECTING,
				  &ifp->vif->sme_state);
		else
			brcmf_bss_connect_done(cfg, ndev, e, false);
	}

	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.