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[2620:137:e000::1:20]) by mx.google.com with ESMTP id h24-20020a656398000000b0041bf78284d8si15588936pgv.635.2022.08.16.09.52.33; Tue, 16 Aug 2022 09:52:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=Xggpu1DO; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236116AbiHPQVV (ORCPT + 99 others); Tue, 16 Aug 2022 12:21:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235397AbiHPQVU (ORCPT ); Tue, 16 Aug 2022 12:21:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDF21E1; Tue, 16 Aug 2022 09:21:19 -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 8A469611D2; Tue, 16 Aug 2022 16:21:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7362DC433C1; Tue, 16 Aug 2022 16:21:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660666878; bh=G+oVel7Xivzjl7CyjzEJ6yCLiGZenrIQumLQqtDDsCw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Xggpu1DOYkCadzgc7xEfPrIG3CFadraRadRMkoQPKijONoOXyyM5ND20mOHIb2z57 xA15/tG6mw1J6qX9cB6B9EHvuI6hACpJsJBnvm9eOgw/lt1PgKKQa/EXu1bqb1c5ai VLotg5R5xJT9WG5iY8oBpoh4A1dkwrAJygenH3AU= Date: Tue, 16 Aug 2022 18:21:15 +0200 From: Greg KH To: Jiacheng Xu <578001344xu@gmail.com> Cc: linux-kernel@vger.kernel.org, axboe@kernel.dk, 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: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Also, random syzbot submissions are best sent with a fix for them, otherwise it might be a while before they will be looked at. good luck! greg k-h