From: Jouni Malinen <j@w1.fi>
Date: Fri, 22 Dec 2023 08:57:04 +0000 (+0200)
Subject: nl80211: Fix AP deinit path in error cases
X-Git-Tag: hostap_2_11~593
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c3438eef6311a426c69304c0823b23f44649828;p=thirdparty%2Fhostap.git

nl80211: Fix AP deinit path in error cases

If the interface initialization fails, no links might be set when
calling the deinit functions. Those functions need to be prepared for
bss->flink being NULL.

Fixes: 47269be36e61 ("nl80211: Refactor i802_bss to support multiple links")
Signed-off-by: Jouni Malinen <j@w1.fi>
---

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index dbe092adf..4bebd6ed3 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -6135,7 +6135,8 @@ static void nl80211_teardown_ap(struct i802_bss *bss)
 		nl80211_mgmt_unsubscribe(bss, "AP teardown");
 
 	nl80211_put_wiphy_data_ap(bss);
-	bss->flink->beacon_set = 0;
+	if (bss->flink)
+		bss->flink->beacon_set = 0;
 }