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_PASS,URIBL_BLOCKED, USER_AGENT_MUTT 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 58F1FC43381 for ; Mon, 1 Apr 2019 19:16:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2DC0321473 for ; Mon, 1 Apr 2019 19:16:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728594AbfDATQw (ORCPT ); Mon, 1 Apr 2019 15:16:52 -0400 Received: from mga04.intel.com ([192.55.52.120]:51418 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725897AbfDATQv (ORCPT ); Mon, 1 Apr 2019 15:16:51 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Apr 2019 12:16:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,297,1549958400"; d="scan'208";a="127737922" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.181]) by orsmga007.jf.intel.com with ESMTP; 01 Apr 2019 12:16:50 -0700 Date: Mon, 1 Apr 2019 12:16:50 -0700 From: Sean Christopherson To: syzbot Cc: dvyukov@google.com, hpa@zytor.com, jmattson@google.com, karahmed@amazon.de, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, rkrcmar@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Subject: Re: WARNING in free_loaded_vmcs (2) Message-ID: <20190401191650.GB24070@linux.intel.com> References: <000000000000b239d705736497a3@google.com> <000000000000b0ddb205855cad54@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000b0ddb205855cad54@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, Mar 30, 2019 at 09:53:01PM -0700, syzbot wrote: > syzbot has bisected this bug to: > > commit 8fcc4b5923af5de58b80b53a069453b135693304 > Author: Jim Mattson > Date: Tue Jul 10 09:27:20 2018 +0000 > > kvm: nVMX: Introduce KVM_CAP_NESTED_STATE > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17fba63f200000 > start commit: 60c1f892 Merge tag 'dma-mapping-4.19-2' of git://git.infra.. > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=1407a63f200000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1007a63f200000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4c7e83258d6e0156 > dashboard link: https://syzkaller.appspot.com/bug?extid=01bc9e7a8a3f138b71cf > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a6513e400000 > > Reported-by: syzbot+01bc9e7a8a3f138b71cf@syzkaller.appspotmail.com > Fixes: 8fcc4b5923af ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Blech, this is horribly stale. Fixed by commit 5bea5123cbf0 ("KVM: VMX: check nested state and CR4.VMXE against SMM"). #syz fix: KVM: VMX: check nested state and CR4.VMXE against SMM