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=-3.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 37C72C388F9 for ; Tue, 3 Nov 2020 21:13:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EBE8E206B5 for ; Tue, 3 Nov 2020 21:13:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604438039; bh=93ZExvM+6bmjvOPadcQ5VBQMS3/9d1fs67z2XBaxVzM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=CyaY/7+NvqMtSePGZWZOrDTvtZ+xYYpCBzle1+N94PhPue0shC6GPVO04O0kIeKOR eBdNjob030qr59SWfMqnbzuMWxHZexsmCjyGEW73/NHGCBXzwp2bsrrNg/zoayXCax f0oqKl+fa7MHnyBmUCooQ1hyag8SKnUuid+6vwQc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388761AbgKCVN5 (ORCPT ); Tue, 3 Nov 2020 16:13:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:57398 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388530AbgKCVN4 (ORCPT ); Tue, 3 Nov 2020 16:13:56 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 BCA43206B5; Tue, 3 Nov 2020 21:13:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604438036; bh=93ZExvM+6bmjvOPadcQ5VBQMS3/9d1fs67z2XBaxVzM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ApCaW4UVijB0Abbg876PS3Vx3ZfKvASLkwfweLdV2BJ8dQ1efX1FQ+r7SCQh0unrs EJu4FnlT5JqNe3D3aIvm066VDnch5yX6YTXA/Akh71NNJ9G64GoS5aE+QzLxVj4spr 4wTKkXwHqmnklfKJ0KHe3snmys801+/ORQ7+jZJ4= Date: Tue, 3 Nov 2020 22:01:00 +0100 From: Greg KH To: Costa Sapuntzakis Cc: stable@vger.kernel.org, Jan Kara Subject: Re: Fwd: remove ext4-fix-superblock-checksum-calculation-race.patch ? Message-ID: <20201103210100.GA666918@kroah.com> References: <20201103183028.GB83845@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Tue, Nov 03, 2020 at 12:45:24PM -0800, Costa Sapuntzakis wrote: > On Tue, Nov 3, 2020 at 10:30 AM Greg KH wrote: > > > > On Tue, Nov 03, 2020 at 09:24:57AM -0800, Costa Sapuntzakis wrote: > > > syzbot found https://syzkaller.appspot.com/bug?extid=7a4ba6a239b91a126c28 > > > which shows we can try to sleep under a spinlock in an error path. > > > > Do you have a patch for this? > > Sorry, I put too much in the subject. I received e-mail this morning > (Pacific Standard Time) that > ext4-fix-superblock-checksum-calculation-race.patch had been > incorporated into various stable branches. Yesterday, I received an > e-mail from Hillf Danton (hdanton@sina.com) that syzbot had found a > bug in the patch. > > Hillf Danton (hdanton@sina.com) has made a patch for the patch and it > is being reviewed. We will be glad to queue up the fix when it hits Linus's tree as well. thanks, greg k-h