linux-kernel - [PATCH] Fix: Ensure auth_data and ap_addr are properly set before marking STA as authenticated

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Message-ID: <20241108022828.6571-1-sarvesh20123@gmail.com>
Date: Fri,  8 Nov 2024 07:58:28 +0530
From: Saru2003 <sarvesh20123@...il.com>
To: johannes@...solutions.net
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Saru2003 <sarvesh20123@...il.com>
Subject: [PATCH] Fix: Ensure auth_data and ap_addr are properly set before marking STA as authenticated

Signed-off-by: Saru2003 <sarvesh20123@...il.com>
---
 net/mac80211/mlme.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 735e78adb0db..a1ca7385dc1b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -4247,8 +4247,15 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
 static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	const u8 *ap_addr = ifmgd->auth_data->ap_addr;
+	const u8 *ap_addr;
 	struct sta_info *sta;
+	
+	if (!ifmgd->auth_data || !ifmgd->auth_data->ap_addr) {
+		sdata_info(sdata, "auth_data not set or ap_addr missing\n");
+		return false;
+	}
+
+	ap_addr = ifmgd->auth_data->ap_addr;
 
 	lockdep_assert_wiphy(sdata->local->hw.wiphy);
 
@@ -4261,7 +4268,7 @@ static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata)
 	/* move station state to auth */
 	sta = sta_info_get(sdata, ap_addr);
 	if (!sta) {
-		WARN_ONCE(1, "%s: STA %pM not found", sdata->name, ap_addr);
+	        sdata_info(sdata, "STA %pM not found, skipping authentication mark\n", ap_addr);
 		return false;
 	}
 	if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) {
-- 
2.43.0