brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
{
	struct brcmf_if *ifp = netdev_priv(ndev);

	brcmf_dbg(TRACE, "Enter\n");
	if (!check_vif_up(ifp->vif)) {
		/* When driver is being unloaded, it can end up here. If an
		 * error is returned then later on a debug trace in the wireless
		 * core module will be printed. To avoid this 0 is returned.
		 */
		return 0;
	}

	brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING);
	brcmf_net_setcarrier(ifp, false);

	brcmf_dbg(TRACE, "Exit\n");

	return 0;
}

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.