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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37C95C43387 for ; Thu, 20 Dec 2018 09:24:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08302217D9 for ; Thu, 20 Dec 2018 09:24:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545297870; bh=vasmiCniDwciFl5jvi9OenQmkFJQYeKzPCJFbPbCQc8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hg/8CIvLylBDtaZUltpXCXgWB+BKtVSxQuI1n9L22PJnzQB6lgIfkr4bqF2eaDz04 mnWIRCviegte9SPEO3+UsM6K9vaImfow6jrCyYNaAu+1yVyyh1yOpxe/cyeYDETWkV 0ojvgRdCn70ECtzQNjlt4YHaPKEzOjJSxIzxvz/0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731816AbeLTJY3 (ORCPT ); Thu, 20 Dec 2018 04:24:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:34776 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731802AbeLTJYY (ORCPT ); Thu, 20 Dec 2018 04:24:24 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 29F49217D9; Thu, 20 Dec 2018 09:24:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545297863; bh=vasmiCniDwciFl5jvi9OenQmkFJQYeKzPCJFbPbCQc8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zEA9KmTsiNCEEG1LZaknHVJjqtC4y9hSFvihZtxs+gkiiFTtZXGO0W6Oe4qRmQH6+ vTLhdOUlSe+ySwwPB13+1eeFfS1W2nn0n4U//rK4/vtEQAvgU4P7FYX29whlAXAOF6 dW8u4dwVdqUmcJwpAkkIMN7u63CcYff1rq/2SN50= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ilan Peer , Luca Coelho , Johannes Berg , Sasha Levin Subject: [PATCH 4.9 18/61] mac80211: Fix condition validating WMM IE Date: Thu, 20 Dec 2018 10:18:18 +0100 Message-Id: <20181220085844.470045269@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20181220085843.743900603@linuxfoundation.org> References: <20181220085843.743900603@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 911a26484c33e10de6237228ca1d7293548e9f49 ] Commit c470bdc1aaf3 ("mac80211: don't WARN on bad WMM parameters from buggy APs") handled cases where an AP reports a zeroed WMM IE. However, the condition that checks the validity accessed the wrong index in the ieee80211_tx_queue_params array, thus wrongly deducing that the parameters are invalid. Fix it. Fixes: c470bdc1aaf3 ("mac80211: don't WARN on bad WMM parameters from buggy APs") Signed-off-by: Ilan Peer Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/mlme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 7811650e76c4..6e0aa296f134 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1867,7 +1867,7 @@ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local, params[ac].acm = acm; params[ac].uapsd = uapsd; - if (params->cw_min == 0 || + if (params[ac].cw_min == 0 || params[ac].cw_min > params[ac].cw_max) { sdata_info(sdata, "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n", -- 2.19.1