brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
{
	struct brcmf_cfg80211_vif *vif;
	s32 err = 0;

	brcmf_dbg(TRACE, "Enter\n");
	vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
	if (!check_vif_up(vif))
		return -EIO;

	err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);

	if (err)
		brcmf_err("scan error (%d)\n", err);

	brcmf_dbg(TRACE, "Exit\n");
	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.