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 0E492C25B08 for ; Wed, 17 Aug 2022 06:49:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229488AbiHQGtj (ORCPT ); Wed, 17 Aug 2022 02:49:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238410AbiHQGti (ORCPT ); Wed, 17 Aug 2022 02:49:38 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D50434D4C4; Tue, 16 Aug 2022 23:49:36 -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 711E66114F; Wed, 17 Aug 2022 06:49:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8642C433C1; Wed, 17 Aug 2022 06:49:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660718975; bh=08ntRBn7X58UTGsESkqDo/Jh2OBIjZLXmZ6bzpaRq3E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=s8XSB2SGpdDox2o+oMKsH54U3D8YO3KmMh7BHJzEFC89tjetgy1aiB6i95mk+0OGK LrvLBaAmQNCouqh46A9QUDCV7PAfTW7PCW+4ssXxEwm8OthlBQnZrxE0WStoN5obQT kHkGUUJLtvjbC2k7oKLRac2F3TUWpnf1u6Y3lP1U= Date: Wed, 17 Aug 2022 08:49:31 +0200 From: Greg KH To: Jens Axboe Cc: Jiacheng Xu <578001344xu@gmail.com>, linux-kernel@vger.kernel.org, asml.silence@gmail.co, io-uring@vger.kernel.org, security@kernel.org Subject: Re: KASAN: null-ptr-deref Write in io_file_get_normal Message-ID: References: <5bf54200-5b12-33b0-8bf3-0d1c6718cfba@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5bf54200-5b12-33b0-8bf3-0d1c6718cfba@kernel.dk> Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Tue, Aug 16, 2022 at 10:57:39AM -0600, Jens Axboe wrote: > On 8/16/22 10:21 AM, Greg KH wrote: > > On Wed, Aug 17, 2022 at 12:10:09AM +0800, Jiacheng Xu wrote: > >> Hello, > >> > >> When using modified Syzkaller to fuzz the Linux kernel-5.15.58, the > >> following crash was triggered. > > > > As you sent this to public lists, there's no need to also cc: > > security@k.o as there's nothing we can do about this. > > Indeed... > > > Also, random syzbot submissions are best sent with a fix for them, > > otherwise it might be a while before they will be looked at. > > Greg, can you cherrypick: > > commit 386e4fb6962b9f248a80f8870aea0870ca603e89 > Author: Jens Axboe > Date: Thu Jun 23 11:06:43 2022 -0600 > > io_uring: use original request task for inflight tracking > > into 5.15-stable? It should pick cleanly and also fix this issue. > > -- > Jens Axboe > > Thanks, will do after this next round of releases go out. greg k-h