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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 83754C4332D for ; Wed, 18 Mar 2020 22:29:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4B80D2076F for ; Wed, 18 Mar 2020 22:29:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584570548; bh=AyrvIuNfSBjSPCFLC4e6fJBBfjeamCZs3I4Bk/a401I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=Q76Y9YWgK0cn6dBBUaEYd1e3J316FBtrYOGXDsggs9bKnYa9As7c3ywTLCnTahzbz Y1zdKAhu+HRSPWVad0wT0zhgihe/wXvAwEHfa243cXkHu/k1bmXm/tjc5tf9fkoQKe QCzy5EUrTCmRv718UVJN1BwAVboufNjazCuDbd68= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727229AbgCRW3I (ORCPT ); Wed, 18 Mar 2020 18:29:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:49190 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726663AbgCRW3H (ORCPT ); Wed, 18 Mar 2020 18:29:07 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 1E3352076C; Wed, 18 Mar 2020 22:29:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584570547; bh=AyrvIuNfSBjSPCFLC4e6fJBBfjeamCZs3I4Bk/a401I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Z1LQe9sk3615eGEbtfOborbEp89q6Ox1yvlju2hYMNGLv7sdd36tRKwBm4TohxIx+ froHbtlslOaE8HEZP5JmWfbk97PoN/5v3hXm4hwraf0k9jq6wMC6PiSojcxmkUT5MZ uLziXaZY2NoEzmEUwj/AWdMMcA5AZ+OtfOTjQhLk= Date: Wed, 18 Mar 2020 18:29:06 -0400 From: Sasha Levin To: Ben Hutchings Cc: Greg Kroah-Hartman , Sasha Levin , stable Subject: Re: [stable] locks: fix a potential use-after-free problem when wakeup a waiter Message-ID: <20200318222906.GJ4189@sasha-vm> References: <2082b1e11fdbf3b64f0da022fb15a8b615c3678c.camel@codethink.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <2082b1e11fdbf3b64f0da022fb15a8b615c3678c.camel@codethink.co.uk> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Wed, Mar 18, 2020 at 10:09:20PM +0000, Ben Hutchings wrote: >This commit (included in 5.6-rc5) seems to be needed for 5.4 and 5.5 >branches: > >commit 6d390e4b5d48ec03bb87e63cf0a2bff5f4e116da >Author: yangerkun >Date: Wed Mar 4 15:25:56 2020 +0800 > > locks: fix a potential use-after-free problem when wakeup a waiter I've queued it up for 5.5 and 5.4, thanks! >I'm a bit surprised that it hasn't yet been applied, while some fixes >from 5.6-rc6 have. Greg, I wonder if it makes sense to have you push a "Greg is here --->" "bookmark" in the form of a tag/branch on linux-stable-rc.git? at the very least it'll make it easy to see if something was missed or still waiting in the queue. -- Thanks, Sasha