From: Jouni Malinen <j@w1.fi>
Date: Sun, 14 Apr 2019 09:33:37 +0000 (+0300)
Subject: nl80211: Clear bss->freq on station mode disconnection
X-Git-Tag: hostap_2_8~74
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=091c2277147eed282d828f13776b9eef371b66b8;p=thirdparty%2Fhostap.git

nl80211: Clear bss->freq on station mode disconnection

This fixes some issues where bss->freq could have been used to replace
the current operating channel when sending out a management frame.
bss->freq has not been consistently used to track the current operating
channel in station mode, so it should not be trusted for this type of
uses. Clearing it makes this a bit more robust by at least avoiding the
cases of information from past association being used.

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

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 60934fbbc..7b3281fa0 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -307,6 +307,7 @@ void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
 		os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
 	drv->associated = 0;
 	os_memset(drv->bssid, 0, ETH_ALEN);
+	drv->first_bss->freq = 0;
 }