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 570BD346E75; Sat, 12 Sep 2026 07:17:12 +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=1789197433; cv=none; b=QPdQ2CcF1lJI0uFBzjZvlQ77c6O28zCW4ALvoOIRR7iy22CWWjmozSittq4EOf+8KPZ++U/YB2dvGQ+GEiDkJyc2TOAcy0Nz68sbiU3ReZu+3+wI/tB/ABkKLFNkwYGb/J9PzcLwVz3g1/x/Rs0GUc/QEIQx8Nv5bvBdg34+Sm0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789197433; c=relaxed/simple; bh=k7K1bbPgvgVN30E5blHtBXfZFGeVqSq7W/1npG46Lhg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=d0NemUauY/YE1j6k5UA2i95qvYQokE1KgNVktbi1lMVFL19Hy/wRs+YF+sAQLxXZgNEHD6ZNAB9U8A3B5dgahmLN933nG/BBOglquypWadv5c1V6NBm3rdUvix+0Gf1pTbFVOrDLS9BZAZiNPODOyTUsVansD3QPG8FopK6dFaU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VkMUWeg2; 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="VkMUWeg2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EB6E31F000FF; Sat, 12 Sep 2026 07:17:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789197432; bh=a5VuUMEoWvGpXSRNeaW5FTTcM8ADhq0K+Y3pCtPuG1A=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VkMUWeg2JSNGLBphsCpKpAhOOSSlnUlSKP73iXk0sctmBU6syLjJWZUqbyPibhqAa 7BNe3uLJzgcVazbin37JcDSWMcQuLxuwImadO+pkz1uwrOHvdg2kkwI3zYeorMBop2 aPk8yqIblK1A4Welgc69H7o+58T0rSSJHSTBfNkY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Pengpeng Hou , Ping-Ke Shih , Sasha Levin Subject: [PATCH 7.2 0172/1815] wifi: rtw89: fix HE extended capability length check Date: Sat, 12 Sep 2026 08:32:02 +0200 Message-ID: <20260912065653.044537622@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065648.999753832@linuxfoundation.org> References: <20260912065648.999753832@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 7.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Pengpeng Hou [ Upstream commit 2aba608a86e9b099c9af2ea70b620552dee2b628 ] rtw89_mac_check_he_obss_narrow_bw_ru_iter() reads extended capability byte 10, but rejects only datalen values below 10. Byte 10 requires at least 11 bytes. Require datalen >= 11 before reading data[10]. Fixes: 8d540f9d2916 ("wifi: rtw89: disable 26-tone RU HE TB PPDU transmissions") Signed-off-by: Pengpeng Hou Acked-by: Ping-Ke Shih Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/2026063009025530.2-ccfa108-0024-wifi-rtw89-fix-HE-extended--pengpeng@iscas.ac.cn Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtw89/mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index 8c395517bd2fe..99de1b2029768 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -5167,7 +5167,7 @@ static void rtw89_mac_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, ies->len); - if (!elem || elem->datalen < 10 || + if (!elem || elem->datalen < 11 || !(elem->data[10] & WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) *tolerated = false; rcu_read_unlock(); -- 2.53.0