brcmf_alloc_internal_escan_request(struct wiphy *wiphy, u32 n_netinfo) {
	struct cfg80211_scan_request *req;
	size_t req_size;

	req_size = sizeof(*req) +
		   n_netinfo * sizeof(req->channels[0]) +
		   n_netinfo * sizeof(*req->ssids);

	req = kzalloc(req_size, GFP_KERNEL);
	if (req) {
		req->wiphy = wiphy;
		req->ssids = (void *)(&req->channels[0]) +
			     n_netinfo * sizeof(req->channels[0]);
	}
	return 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.