Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp3328334ybt; Mon, 29 Jun 2020 23:14:16 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwqCJEBonhI85oqNJ8ljW9VRyDoYK4DQP6Adwv0nMF9vRXESsquY8bVz5UZd/SQZd5ua6rE X-Received: by 2002:a17:906:2505:: with SMTP id i5mr16578438ejb.545.1593497656067; Mon, 29 Jun 2020 23:14:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1593497656; cv=none; d=google.com; s=arc-20160816; b=w/hFB2MXdWgyOHWsFv7RlA252m6YFMGD3Ed6uCFm3h7H6ss/6k9CbedZDV+Jdei1oN 9nKVte3XlopR87eZpMearRrE6GP5O0LxJkSBpnKZi9WloGzKufJMyExrbUOvSgJ4JULV GJhdXYxRQj6VdK0dgpXBWspuVKs0uxcdq7xvYKrM5mtihOHioO/z2N9OVuYcRhslkoRP F8+XsTxspJgAlTdoG2yiZufWMT44DRUbF27nZjzc1v5kWVqdiqIMYn/VEK0rkwTu72F6 mHak9gdTeAq1rkmNU7azzBiEH1W2GFuPMQlCjd5LxaJhpgr+YeXfKHIwOOD0kH3GUzvc QOVA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:ironport-sdr:ironport-sdr; bh=QPjef3pM0wBysEqoQ0WsvKMW8U1CPglF99lEEJCD3BE=; b=t6SZ4IpEMO9mxNRkNnNeZp26aEne7nNbycjt8Umww7P0EE87HhG01ELl3AwI+/SUxK MracDCcysdfOJOV28n53n8MUIIduBaWsnvdzx0s7xGGqyuaFXAqtdH+/UErQqJyYx7eI mlSH74XpKh2WK/09cbmN6nkNAPRjlCfKaVDld/yoyAvBA6rVf7U9ypKcCY6ZJbXit5oM BQeZ4rTABpSBxmLhz57Zf/vLIAttBnoLoxFyxGhM/xWy413CmU6l4TEcMIMMfw3xvV+e 7vQ/r8V2axgweAgMz+/6HbJXNHxX4kaN6RnOnLXXNdgu3ukfKRnwTa26kH6yA1iqHcGy R5/A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id 25si1212640ejx.187.2020.06.29.23.13.53; Mon, 29 Jun 2020 23:14:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729935AbgF3GMx (ORCPT + 99 others); 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