Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp3328087ybt; Mon, 29 Jun 2020 23:13:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxzoxrIrZPBXisV0ElI++CVOhg4X/SfKthMywJZbLMLURh1JM8s7lcSwgUQ7MWOhegcNnTY X-Received: by 2002:a05:6402:13d0:: with SMTP id a16mr21195382edx.269.1593497627207; Mon, 29 Jun 2020 23:13:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1593497627; cv=none; d=google.com; s=arc-20160816; b=khW0zSkqA10DNXBoO2nFDc0AKAXwEIZVyKGaITUINv3HimUkCPnSplYpj8rlSpL1oI 9L7PCs6BPmsMHfNpuN6stggUJoubnfF9OswAB3Z1Gp0Ko4lsRchm30zVe+j8NyMmdS2P cAFPXXI7AVWv5r01kmAERrB9fdT3kBY/i3cvnywsZWOWwvXWp8aUL8zKHL3vUeO4UaD4 jiFuTbPWy7nwOdDQPAcIlFQOeCmUSXcWEYnG/vCxHQKQuQgQd0p35Ouc5impOjxOy54R dC/kKFQyWsakaA9inClpvCN58jdmPJooD2+oFHmUOA27/C+H1op/3ysDJrd3Avhc0WmO oZZA== 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=x1ZB3CDMRreN5DgsYUtpOIRXO6fvBfxN5e9Fad38KjY=; b=YLNxO9eGzx3JWz45mRXtWe7C9gZjmS+fa2MOMU9qwMQlrFkFQigkSb9cQ3uDSMb3E8 ejFqGpXtpWePbFNGduo/CRkZx8RE5+4LX1Ko79/34JB0jw1Jgxh7mAEczPl7oCS44G4p 4p/6XfmmvB/gJqIM4XPQECTRymnN4FTATDhpwOykqrJlVH/CVZK+UoUhJxGdvTgtshKu 1FspkCqJc4KFKGeBexiAE/VJGnuh13rqjA5cny52YSWbB1GdUv+Tz0gUlZsoT+WzPQCN KWiJ8OuTaWHY6XAfnmaTD5evqCrthuOebvGV/5UQoP423mj4gBDgqgtsGgdMJj+W8vXU +UUQ== 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 cb18si1143890ejb.534.2020.06.29.23.13.24; Mon, 29 Jun 2020 23:13:47 -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 S1729915AbgF3GM3 (ORCPT + 99 others); Tue, 30 Jun 2020 02:12:29 -0400 Received: from mga01.intel.com ([192.55.52.88]:2096 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729808AbgF3GM3 (ORCPT ); Tue, 30 Jun 2020 02:12:29 -0400 IronPort-SDR: tmazwPYorPvvbcDDUczUvBHHEx+U5xlRLIZ70Sitse9as+FqAJOyhNBcdoBJp0TD2NVhpMkhAs Smtiych/N7sw== X-IronPort-AV: E=McAfee;i="6000,8403,9666"; a="164168151" X-IronPort-AV: E=Sophos;i="5.75,296,1589266800"; d="scan'208";a="164168151" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2020 23:12:28 -0700 IronPort-SDR: GpJLMbiIm0KKYRJwt+XBk+4Xa0tN+rvlhQZ3nfspt4KCAM3Hbn68kepGtS2moHfvf0lSz3K8/b VRgxFJUeOeew== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,296,1589266800"; d="scan'208";a="277321994" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.152]) by orsmga003.jf.intel.com with ESMTP; 29 Jun 2020 23:12:28 -0700 Date: Mon, 29 Jun 2020 23:12:28 -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: general protection fault in pvclock_gtod_notify Message-ID: <20200630061228.GU12312@linux.intel.com> References: <0000000000002e703905a902457b@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000002e703905a902457b@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 Fri, Jun 26, 2020 at 01:08:19PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 4a21185c Merge git://git.kernel.org/pub/scm/linux/kernel/g.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=16958f4d100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=bf3aec367b9ab569 > dashboard link: https://syzkaller.appspot.com/bug?extid=b46fb19f175c5c7d1f03 > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1080e9c5100000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1685d2e3100000 #syz dup: general protection fault in syscall_return_slowpath