hostapd: Validate the country_code parameter value

[thirdparty/hostap.git] / hostapd / config_file.c

diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index 425446c2403680b2eab37a249718601217e7c55a..1d8c0397356f935443db84aa649276b2a0551358 100644 (file)
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2463,6 +2463,13 @@ static int hostapd_config_fill(struct hostapd_config *conf,
        } else if (os_strcmp(buf, "skip_inactivity_poll") == 0) {
                bss->skip_inactivity_poll = atoi(pos);
        } else if (os_strcmp(buf, "country_code") == 0) {
+               if (pos[0] < 'A' || pos[0] > 'Z' ||
+                   pos[1] < 'A' || pos[1] > 'Z') {
+                       wpa_printf(MSG_ERROR,
+                                  "Line %d: Invalid country_code '%s'",
+                                  line, pos);
+                       return 1;
+               }
                os_memcpy(conf->country, pos, 2);
        } else if (os_strcmp(buf, "country3") == 0) {
                conf->country[2] = strtol(pos, NULL, 16);