linux-kernel - [PATCH] iwlwifi: dvm: fix NULL pointer dereference in rxon

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Message-ID: <20260204113820.4410-1-dhyaan19022009@gmail.com>
Date: Wed,  4 Feb 2026 17:08:20 +0530
From: dhyaan19022009-hue <dhyan19022009@...il.com>
To: Kalle Valo <kvalo@...nel.org>
Cc: linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	dhyaan19022009-hue <dhyaan19022009@...il.com>
Subject: [PATCH] iwlwifi: dvm: fix NULL pointer dereference in rxon

Signed-off-by: dhyaan19022009-hue <dhyaan19022009@...il.com>
---
 drivers/net/wireless/intel/iwlwifi/dvm/rxon.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c b/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
index e08e44cae..2d480b1d1 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
@@ -1392,6 +1392,11 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 
 	mutex_lock(&priv->mutex);
 
+
+        if (!bss_conf) {
+		mutex_unlock(&priv->mutex);
+		return;
+	}
 	if (changes & BSS_CHANGED_IDLE && vif->cfg.idle) {
 		/*
 		 * If we go idle, then clearly no "passive-no-rx"
-- 
2.43.0