From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4797D417903; Sat, 28 Feb 2026 17:45:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300723; cv=none; b=O6IRnN96xHdk/ux510AbmYAsQvftmdFgvgWYIOw7s/niAToGV1ro+eZWDIzxgbPGE5UdT/3Pj6ZlKbVivdll8L50rf++SENBhHrX+zba2YMx5U/tvnHHIlW+6fcSHpOhKAtb8xxZADhCtjwVjX+HMM/PiW1LiBQKJQnnPahE6Gw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300723; c=relaxed/simple; bh=ZXbbGPOEiAauBu9+joyNRBMAEU5p3ym0ZRLsyoPd6Os=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MflP81Q5rQETznknNqlo+83V1JA9FULk3IzAksCVO809dWFCfg7WaCUdOYvU6qqxTUU/5i0PieeANv1K9v+dRo642mWzNbeUXfK4iSGCYVW2laO2AVJB2LSvr5WA0f6GB03pzJ3aGeLnDrSJQvcf4rw0CUY7mZ9NhAXKvH+vntw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hHGOAM3r; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hHGOAM3r" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A3EAC19424; Sat, 28 Feb 2026 17:45:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300723; bh=ZXbbGPOEiAauBu9+joyNRBMAEU5p3ym0ZRLsyoPd6Os=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hHGOAM3rDNCURtFnINuuNkW0MEeB4aXFVOX9vL73YQmNe6guCTXPlhT/DRTDkwfpd 6vEhWjrwRiC9rC/1dQ922ZcelD17BWaR/VoblTrtPdgrrXgRoStyt9ut6jdcQvLItS 7BLAV0G80Ms8qyAwi2yYdjaHvQNZzQmLyOgd9R1q3EPt8DZyFF5t6oSHttlqxdy5kJ +GfdL2jr34mbYmDuEwI95MtdoOHh48abJLULrBYt+eT84Yqxu6X8aWzMy9YrmaIUPR O7MEbxftseDghvtkaZfkI11mMjNsHgq3JzqmNB1+PdP/RrmY9cDk2oXn97qZvroOzq Xm0yVdTmurlrg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ethan Tidmore , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH 6.19 759/844] staging: rtl8723bs: fix null dereference in find_network Date: Sat, 28 Feb 2026 12:31:12 -0500 Message-ID: <20260228173244.1509663-760-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Ethan Tidmore [ Upstream commit 41460a19654c32d39fd0e3a3671cd8d4b7b8479f ] The variable pwlan has the possibility of being NULL when passed into rtw_free_network_nolock() which would later dereference the variable. Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver") Cc: stable@vger.kernel.org Signed-off-by: Ethan Tidmore Link: https://patch.msgid.link/20260202205429.20181-1-ethantidmore06@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/rtl8723bs/core/rtw_mlme.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme.c b/drivers/staging/rtl8723bs/core/rtw_mlme.c index 98704179ad35a..936c850e5aab8 100644 --- a/drivers/staging/rtl8723bs/core/rtw_mlme.c +++ b/drivers/staging/rtl8723bs/core/rtw_mlme.c @@ -835,8 +835,10 @@ static void find_network(struct adapter *adapter) struct wlan_network *tgt_network = &pmlmepriv->cur_network; pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address); - if (pwlan) - pwlan->fixed = false; + if (!pwlan) + return; + + pwlan->fixed = false; if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)) -- 2.51.0