From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932400AbdJYItm (ORCPT ); Wed, 25 Oct 2017 04:49:42 -0400 Received: from imap.thunk.org ([74.207.234.97]:57038 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932219AbdJYItk (ORCPT ); Wed, 25 Oct 2017 04:49:40 -0400 Date: Wed, 25 Oct 2017 04:49:26 -0400 From: "Theodore Ts'o" To: Chen Feng Cc: Greg KH , zhaoyukun@huawei.com, arnd@arndb.de, linux-kernel@vger.kernel.org, suzhuangluan@hisilicon.com, dan.zhao@hisilicon.com Subject: Re: [PATCH RFC] random: fix syzkaller fuzzer test int overflow Message-ID: <20171025084926.mpdec34mog3xcocz@thunk.org> Mail-Followup-To: Theodore Ts'o , Chen Feng , Greg KH , zhaoyukun@huawei.com, arnd@arndb.de, linux-kernel@vger.kernel.org, suzhuangluan@hisilicon.com, dan.zhao@hisilicon.com References: <1508831057-64195-1-git-send-email-puck.chen@hisilicon.com> <20171024090927.GA20625@kroah.com> <20171024102528.7oywdwjriesoh3mk@thunk.org> <59F02FA0.7090605@hisilicon.com> <20171025065646.GA13386@kroah.com> <59F03887.7020700@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <59F03887.7020700@hisilicon.com> User-Agent: NeoMutt/20170609 (1.8.3) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Other people who have sent me fuzzer test reproducers are able to reproduce syzkaller logs into a simple C program. Can you explain to me what the heck: > r3 = syz_open_dev$urandom(&(0x7f000000a000)="2f6465762f7572616e646f6d00", 0x0, 0x0) means? - Ted