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 EEFF63563FB; Sat, 12 Sep 2026 12:06:04 +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=1789214766; cv=none; b=Kj9n5Takxdk8Nxn82FrPGvCr3l6FdZX6T30VEh/ubAYg0XwrK039sZ6qVdYe4pBEdZQeoVD3yzueLrk/76eF3na97OoGTXz1TVeFUy7MoBDXfj7fBurq0nUjVL0tCUDgBiLL38BOjEYjnJzw7CCcE+DWNVfuC0xsn6v3WZ/3JSc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789214766; c=relaxed/simple; bh=FdSCCc2kNoKLy0i+VJU2bOD3quiL0RWniMLHIpPhd0g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=US8Wasef1yT4Ec3+82jlRICwslKtDmbQakUwutEDfbJlK3UJ36OvbsLAtDJWtum9b8OE7NeRs+PVuaAHfbVSif6u9sDO0tyc51ze0x0eozzEqtM+zdn7V5EdLuUk0xeA/bl84GTD9To8yCO2rjKkvD58QOWnfYHPtAGariAXIh4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MrFexq/P; 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="MrFexq/P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 011FF1F000FF; Sat, 12 Sep 2026 12:06:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789214764; bh=df+r16EmchfccUtzzii15WREgcy0V2oqmcTVgXnbHao=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=MrFexq/PlK5d6qiZA8evY6VsRTtNgNKnHkm5GpENqvrFWrO5UJc+3toyt7i6aU7pg f/tCD6sso3z5xM43yfxEPE8YtWKX/snX9O3FgRGq2OfD/ZkwFxHbhG1XisfOnPbYaO czzaSOovLpUbC1zwU3VVaFPcb2oKzRqG6sq7rOoo= 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 6.12 0394/1376] wifi: rtw89: fix HE extended capability length check Date: Sat, 12 Sep 2026 08:47:00 +0200 Message-ID: <20260912065616.327528739@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.535295758@linuxfoundation.org> References: <20260912065607.535295758@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 6.12-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 31465893f866d..f323417a88d20 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -4730,7 +4730,7 @@ 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