brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
				struct net_device *ndev,
				struct cfg80211_sched_scan_request *req)
{
	struct brcmf_if *ifp = netdev_priv(ndev);
	struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);

	brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n",
		  req->n_match_sets, req->n_ssids);

	if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
		brcmf_err("Scanning suppressed: status=%lu\n",
			  cfg->scan_status);
		return -EAGAIN;
	}

	if (req->n_match_sets <= 0) {
		brcmf_dbg(SCAN, "invalid number of matchsets specified: %d\n",
			  req->n_match_sets);
		return -EINVAL;
	}

	return brcmf_pno_start_sched_scan(ifp, req);
}

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.