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 7F178C00144 for ; Mon, 1 Aug 2022 08:47:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229642AbiHAIr2 (ORCPT ); Mon, 1 Aug 2022 04:47:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230237AbiHAIr2 (ORCPT ); Mon, 1 Aug 2022 04:47:28 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6EB5032DB5; Mon, 1 Aug 2022 01:47:27 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 0C80B61008; Mon, 1 Aug 2022 08:47:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2E94C433D6; Mon, 1 Aug 2022 08:47:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1659343646; bh=xbJSzaTJLqf/iz1sUggkR2WIMbRuPaCeSIwGgeDNNw8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dEZ3ZGt7IBgk3rFNv6L+SpJp9GAYTM2u17D05UdDWVsQpSAQ+t6TkEM/juvVJLwBT YlBVqOlMJN8w4yn+p5K0j4SpZDcqRQellWTl2iFQM40T2SXcZEVIJfUWs4lXMuTCb6 CSR1l9mRovyfJWAfhe4BuHHhPoQMXSOxUhs7RnXQ= Date: Mon, 1 Aug 2022 10:47:23 +0200 From: Greg KH To: Siddh Raman Pant Cc: Dipanjan Das , David Howells , Christophe JAILLET , Eric Dumazet , "Fabio M. De Francesco" , linux-security-modules , linux-kernel-mentees , linux-kernel , syzbot+c70d87ac1d001f29a058 , Marius Fleischer , Priyanka Bose Subject: Re: [PATCH] kernel/watch_queue: Make pipe NULL while clearing watch_queue Message-ID: References: <1822b768504.1d4e377e236061.5518350412857967240@siddh.me> <20220723135447.199557-1-code@siddh.me> <3558070.1658933200@warthog.procyon.org.uk> <182407602ce.190e58816827.7904364186178466266@siddh.me> <20220731181131.GB3569921@berlinger> <1825594fdb6.52eb2a02235647.5426665702277259900@siddh.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1825594fdb6.52eb2a02235647.5426665702277259900@siddh.me> Precedence: bulk List-ID: On Mon, Aug 01, 2022 at 12:16:43AM +0530, Siddh Raman Pant wrote: > On Sun, 31 Jul 2022 23:41:31 +0530 Dipanjan Das wrote: > > On Wed, Jul 27, 2022 at 09:50:52PM +0530, Siddh Raman Pant wrote: > > > Thank you for explaining it! > > > > > > I will send a v3. Should I add a Suggested-by tag mentioning you? > > > > Sorry for jumping in. > > > > We have reported the same bug in kernel v5.10.131 [https://lore.kernel.org/all/CANX2M5bHye2ZEEhEV6PUj1kYL2KdWYeJtgXw8KZRzwrNpLYz+A@mail.gmail.com]. We have been suggested to join this discussion so that we can have appropriate meta-information injected in this patch’s commit message to make sure that it gets backported to v5.10.y. Therefore, we would like to be in the loop so that we can offer help in the process, if needed. > > > > As you are suggesting for backporting, I should CC the stable list, or mail > after it gets merged. You have reproduced it on v5.10, but the change seems to > be introduced by c73be61cede5 ("pipe: Add general notification queue support"), > which got in at v5.8. So should it be backported till v5.8 instead? There are no active supported kernels other than the ones listed on kernel.org, so 5.8 doesn't make much sense here, only 5.10 and 5.15 and 5.18 at the moment. thanks, greg k-h