From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82217C4321E for ; Mon, 23 May 2022 18:08:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244657AbiEWSGs (ORCPT ); Mon, 23 May 2022 14:06:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243565AbiEWRiS (ORCPT ); Mon, 23 May 2022 13:38:18 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17F4471D86; Mon, 23 May 2022 10:32:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 40748B81204; Mon, 23 May 2022 17:31:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87B54C385AA; Mon, 23 May 2022 17:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1653327115; bh=dgG/AjxTDAWbTv8PbOERZK7TlvSzG5giHmfTLth98NY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lLd/5otKO/UI1QRSFjxWvGJx52tUjGfeIGXo9EOdpIXhiiCZVaqrldrOHGHJoWvCY KkSD3JybyxbfktM3V1BM3NM7qXV/Ieo+axNGIc4VtpMJhhiIyeF7NfSHWySeDxoSdI wlBXOkh/WCWHduFAyPtMy3m3vcYfkNQVnFPb/AH0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kieran Frewen , Bassem Dawood , Johannes Berg , Sasha Levin Subject: [PATCH 5.17 136/158] nl80211: validate S1G channel width Date: Mon, 23 May 2022 19:04:53 +0200 Message-Id: <20220523165852.870833198@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523165830.581652127@linuxfoundation.org> References: <20220523165830.581652127@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kieran Frewen [ Upstream commit 5d087aa759eb82b8208411913f6c2158bd85abc0 ] Validate the S1G channel width input by user to ensure it matches that of the requested channel Signed-off-by: Kieran Frewen Signed-off-by: Bassem Dawood Link: https://lore.kernel.org/r/20220420041321.3788789-2-kieran.frewen@morsemicro.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/wireless/nl80211.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index dc171ca0d1b1..06a35f1bec23 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3128,6 +3128,15 @@ int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, } else if (attrs[NL80211_ATTR_CHANNEL_WIDTH]) { chandef->width = nla_get_u32(attrs[NL80211_ATTR_CHANNEL_WIDTH]); + if (chandef->chan->band == NL80211_BAND_S1GHZ) { + /* User input error for channel width doesn't match channel */ + if (chandef->width != ieee80211_s1g_channel_width(chandef->chan)) { + NL_SET_ERR_MSG_ATTR(extack, + attrs[NL80211_ATTR_CHANNEL_WIDTH], + "bad channel width"); + return -EINVAL; + } + } if (attrs[NL80211_ATTR_CENTER_FREQ1]) { chandef->center_freq1 = nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1]); -- 2.35.1