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 D8BE32D47F1; Sat, 12 Sep 2026 14:18:57 +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=1789222738; cv=none; b=PfztKYBbwEIGhHs1X1GSytoDfZTF+7DloCOZ587Qie5IV8JGfn8uDvK1K+2J7zssVV+U1TYOslZo7cRMJpMmT8aHJADFXLkGnAi7pX2kVuQ89GPESqhxbFdBdcWpChR2rfY4JSzhyeLKUiN9aPzXLIVz4/GUG770UPWkm182Ufo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789222738; c=relaxed/simple; bh=fZus5+Gi0Eca1pA2S0MivZPC6rcpPR1nbrTniv+HkOE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hOGXoYWW1QcDXLxoM3mIKsGfNhyWjSEfKimEcQKUkju8UleeCm/zeNAfTVUKfFCjEGvRo80sBAyH2jBZTqWWCaDlusF+hZYV6sASq52CiIE8IVKXYiI/LGK9pf0MK9Og16avLEJqDtzOlBG9z7RmKyzf28SS8YaXV/QvgeSUbjY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0xZxfz+9; 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="0xZxfz+9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B1351F000FF; Sat, 12 Sep 2026 14:18:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789222737; bh=IZd5brJw6gSUk98d808xCHhPi6jSsqh1sNtJm2mrJGI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=0xZxfz+9AyrkA2JC++gxU7xF995ucJIgSjS/mK0kAkWAZ14Pp7QQlG96rmaSG1k1f AdDLfLBAEeBduqJrX6tht58eYTmh5zW3jWiPtTLJ4AdVKI+DeUVHSFveEboHcyP2f1 KYae/h2LGpngqoRO7N3WtLMZM6Na8sb4ghn4hUUA= 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 6.6 0630/1424] wifi: rtw89: fix HE extended capability length check Date: Sat, 12 Sep 2026 08:51:02 +0200 Message-ID: <20260912065621.397434791@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@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 6.6-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 3d63f8b2770e2..fede78213ad8a 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -4223,7 +4223,7 @@ 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