From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 59669282F29; Mon, 17 Aug 2026 15:06:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786979207; cv=none; b=E07Ug8trZyGoMl7eKOLupRgDDX3yNMuWmKnlO8rFU3HuM0GuZig56W+A3d23VspU3mgxsw4Rw/ytymVv/iLAWj8fvBIJHwAydYlIIk0eG4MraID4ycivvu+tE9Dh94C6XnyOrAI1AVPjAH13VEH5gIx8UdJPYLd8uymxyi5A+XM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786979207; c=relaxed/simple; bh=bvP5pkLBfNM0rcUGTDQHHDGs0XOdCjNbwU4ZkNWZ06w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KPYZc9cr2NgRmlmXqd+uhkbzwzgi/bB/DArXXzaGj0IsTvJUgoPrfZy2nK07ftzPMET7x/TT5s7lfIDcHfqXksOG6r0esbLJ3/uUCit/Qf8Z68KyxY5yHPXn41A+sQaLjsDGciGFP/svBMOQ1pJIwQCgFhEVgJWo4DuBtbH22BU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=d+rPyMOU; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="d+rPyMOU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A68F01F00A3A; Mon, 17 Aug 2026 15:06:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786979206; bh=t+oIU3/tX+TDhP0LgkisB+qBf1zYCRLUerezgcYfVdM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=d+rPyMOUEVmeQ2+uf/xbLtmw+7PoLlGaBYmg1aYf0uKica/jI3czPub4U3adpfi8B MccMF4eXk8+LJP0MF3iz3vPyAC9Mb0ZQhdlt9BQQq/opSTLRhpGLzzCaJxPgzBaM91 GyqLa+c389H7mjR2s71DrcDUkDZGvidOq4hZ8JNg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 6.1 144/609] wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv() Date: Mon, 17 Aug 2026 15:27:20 +0200 Message-ID: <20260817132548.829404361@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132543.039278408@linuxfoundation.org> References: <20260817132543.039278408@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Bianconi [ Upstream commit 2c1fb2335f5e3afb34f91bc07ecb63517c328090 ] mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it. Fixes: d0e274af2f2e4 ("mt76: mt76_connac: create mcu library") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20260621-mt76_connac_get_he_phy_cap-fix-v1-1-ed4ccf7a0363@kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 6b5bfdbec8b11d..6f4b1a784a0786 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1298,6 +1298,8 @@ mt76_connac_mcu_uni_bss_he_tlv(struct mt76_phy *phy, struct ieee80211_vif *vif, struct bss_info_uni_he *he; cap = mt76_connac_get_he_phy_cap(phy, vif); + if (!cap) + return; he = (struct bss_info_uni_he *)tlv; he->he_pe_duration = vif->bss_conf.htc_trig_based_pkt_ext; -- 2.53.0