From: Jouni Malinen <j@w1.fi>
Date: Sun, 22 Mar 2020 16:51:41 +0000 (+0200)
Subject: Limit scan frequency list to 100 entries
X-Git-Tag: hostap_2_10~1579
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b967b5e859149d53cb32bc0b37a6ef60a8b1f554;p=thirdparty%2Fhostap.git

Limit scan frequency list to 100 entries

There is no real use case for the scan to be requested on more than 100
channels individually. To avoid excessively long lists with invalid
configuration, use 100 entry limit for the list before dropping to the
fallback scan-all-channels option.

Signed-off-by: Jouni Malinen <j@w1.fi>
---

diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
index ad9d77af8..b47573094 100644
--- a/wpa_supplicant/scan.c
+++ b/wpa_supplicant/scan.c
@@ -1109,7 +1109,9 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 		     tssid = tssid->next) {
 			if (wpas_network_disabled(wpa_s, tssid))
 				continue;
-			if ((params.freqs || !freqs_set) && tssid->scan_freq) {
+			if (((params.freqs || !freqs_set) &&
+			     tssid->scan_freq) &&
+			    int_array_len(params.freqs) < 100) {
 				int_array_concat(&params.freqs,
 						 tssid->scan_freq);
 			} else {