[PATCH] Hostapd does not update WPS credentials on SIGHUP

Dmitry Koroban dkoroban at oktetlabs.ru
Thu Aug 20 06:46:57 EDT 2020

Faced this issue on v2.6, but 2.10 seems to have it too.
Steps to reproduce:
1. Start hostapd with WPS enabled
2. Change passphrase in hostapd.conf
3. Send SIGHUP to hostapd
4. Try to connect client using wps_pbc
5. Client receives old passphrase and cannot connect

Signed-off-by: Dmitry Koroban <dkoroban at oktetlabs.ru>

diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index b37f49f9a..9c78785c6 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -163,6 +163,9 @@ static void hostapd_reload_bss(struct hostapd_data 
                 wpa_printf(MSG_ERROR, "Could not set SSID for kernel 
                 /* try to continue */
+       /* Update WPS credentials */
+       hostapd_deinit_wps(hapd);
+       hostapd_init_wps(hapd, hapd->conf);
         wpa_printf(MSG_DEBUG, "Reconfigured interface %s", 

Dmitry Koroban

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