[openwrt/openwrt] hostapd: fix use after free bugs

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/75f72696b5e12ed1e3ab39aacbeedc3db45befe0

commit 75f72696b5e12ed1e3ab39aacbeedc3db45befe0
Author: David Bauer <mail at david-bauer.net>
AuthorDate: Wed Nov 17 21:46:11 2021 +0100

    hostapd: fix use after free bugs
    
    Using a pointer one lifter after it freed is not the best idea.
    Let's not do that.
    
    Signed-off-by: David Bauer <mail at david-bauer.net>
    (cherry-picked from commit 63c01ad025981eaa841353dc0fc27e5017febe21)
---
 .../network/services/hostapd/patches/600-ubus_support.patch  | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/package/network/services/hostapd/patches/600-ubus_support.patch b/package/network/services/hostapd/patches/600-ubus_support.patch
index 938840755a..e690e8fd7b 100644
--- a/package/network/services/hostapd/patches/600-ubus_support.patch
+++ b/package/network/services/hostapd/patches/600-ubus_support.patch
@@ -235,22 +235,22 @@
  		wpabuf_free(sta->p2p_ie);
 --- a/src/ap/sta_info.c
 +++ b/src/ap/sta_info.c
-@@ -424,6 +424,7 @@ void ap_handle_timer(void *eloop_ctx, vo
+@@ -423,6 +423,7 @@ void ap_handle_timer(void *eloop_ctx, vo
+ 		hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
  			       HOSTAPD_LEVEL_INFO, "deauthenticated due to "
  			       "local deauth request");
- 		ap_free_sta(hapd, sta);
 +		hostapd_ubus_notify(hapd, "local-deauth", sta->addr);
+ 		ap_free_sta(hapd, sta);
  		return;
  	}
- 
-@@ -579,6 +580,7 @@ skip_poll:
+@@ -578,6 +579,7 @@ skip_poll:
+ 		mlme_deauthenticate_indication(
  			hapd, sta,
  			WLAN_REASON_PREV_AUTH_NOT_VALID);
- 		ap_free_sta(hapd, sta);
 +		hostapd_ubus_notify(hapd, "inactive-deauth", sta->addr);
+ 		ap_free_sta(hapd, sta);
  		break;
  	}
- }
 @@ -1294,6 +1296,7 @@ void ap_sta_set_authorized(struct hostap
  					  buf, ip_addr, keyid_buf);
  	} else {