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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 1BA5AC33CB1 for ; Tue, 14 Jan 2020 13:43:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E1D5724679 for ; Tue, 14 Jan 2020 13:43:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="oXIs0DFP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726133AbgANNnw (ORCPT ); Tue, 14 Jan 2020 08:43:52 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:17560 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbgANNnv (ORCPT ); Tue, 14 Jan 2020 08:43:51 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1579009431; h=Content-Type: MIME-Version: Message-ID: In-Reply-To: Date: References: Subject: Cc: To: From: Sender; bh=grv067apNIcUdGejucgF9bWSVoDiljz0jVxYhGB3g5c=; b=oXIs0DFPTsMV5jM4PNZijRfmGycZb7dz9ht9F9vqLMPy6XQL3UEUsjjLWpzcmMGqg67kjNNU mgXYE7azefxSeCYcj7NwDDrWpa9325tNCLoeY1YOPqKHp+ZgMiJWwGh8EdApTGefmXoXSLLV 8mCdf1i2qdteC66IF31bWlnEg5k= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e1dc593.7fd7a435b500-smtp-out-n02; Tue, 14 Jan 2020 13:43:47 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id B23A4C4479C; Tue, 14 Jan 2020 13:43:47 +0000 (UTC) Received: from x230.qca.qualcomm.com (85-76-19-103-nat.elisa-mobile.fi [85.76.19.103]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id D95ECC43383; Tue, 14 Jan 2020 13:43:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org D95ECC43383 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org From: Kalle Valo To: Nicolai Stange Cc: "David S. Miller" , Wen Huang , libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Takashi Iwai , Miroslav Benes Subject: Re: [PATCH 1/2] libertas: don't exit from lbs_ibss_join_existing() with RCU read lock held References: <87woa04t2v.fsf@suse.de> <20200114103903.2336-1-nstange@suse.de> <20200114103903.2336-2-nstange@suse.de> Date: Tue, 14 Jan 2020 15:43:42 +0200 In-Reply-To: <20200114103903.2336-2-nstange@suse.de> (Nicolai Stange's message of "Tue, 14 Jan 2020 11:39:02 +0100") Message-ID: <87o8v6qhkh.fsf@codeaurora.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Nicolai Stange writes: > Commit e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss > descriptor") introduced a bounds check on the number of supplied rates to > lbs_ibss_join_existing(). > > Unfortunately, it introduced a return path from within a RCU read side > critical section without a corresponding rcu_read_unlock(). Fix this. > > Fixes: e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss > descriptor") This should be in one line, I'll fix it during commit. -- https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches