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=-7.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 82260C433DF for ; Tue, 30 Jun 2020 06:12:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6508A20759 for ; Tue, 30 Jun 2020 06:12:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729946AbgF3GMx (ORCPT ); Tue, 30 Jun 2020 02:12:53 -0400 Received: from mga06.intel.com ([134.134.136.31]:10230 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725845AbgF3GMw (ORCPT ); Tue, 30 Jun 2020 02:12:52 -0400 IronPort-SDR: Tq/jPCzosdP8vwJ0TgQYavDW5RaIym7RkHJKdOKFyiPjHQ7MgDqNu+XgYBmogT5aBslTDP6WRY VW2FOUGKfquw== X-IronPort-AV: E=McAfee;i="6000,8403,9666"; a="207667129" X-IronPort-AV: E=Sophos;i="5.75,296,1589266800"; d="scan'208";a="207667129" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2020 23:12:52 -0700 IronPort-SDR: XbW0ERvHwlbn6rOYPfAXZL2Ce50DV687GcE1dEkHBxxKcL/WAm5IMqrsxzoQjvI1d0625+OlJm OHoI9NOwdBFw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,296,1589266800"; d="scan'208";a="312271971" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.152]) by orsmga008.jf.intel.com with ESMTP; 29 Jun 2020 23:12:52 -0700 Date: Mon, 29 Jun 2020 23:12:52 -0700 From: Sean Christopherson To: syzbot Cc: bp@alien8.de, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Subject: Re: KASAN: out-of-bounds Read in kvm_arch_hardware_setup Message-ID: <20200630061252.GV12312@linux.intel.com> References: <000000000000a0784a05a916495e@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000a0784a05a916495e@google.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 27, 2020 at 01:01:13PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1654e385100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=be4578b3f1083656 > dashboard link: https://syzkaller.appspot.com/bug?extid=e0240f9c36530bda7130 > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15f3abc9100000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131b7bb5100000 #syz dup: general protection fault in syscall_return_slowpath