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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 0E77DC2BA17 for ; Sun, 5 Apr 2020 14:55:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3DF8206F8 for ; Sun, 5 Apr 2020 14:55:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727461AbgDEOzO (ORCPT ); Sun, 5 Apr 2020 10:55:14 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:36759 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726910AbgDEOzO (ORCPT ); Sun, 5 Apr 2020 10:55:14 -0400 Received: by mail-io1-f69.google.com with SMTP id s66so10953603iod.3 for ; Sun, 05 Apr 2020 07:55:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=t0QGEA/iH/o9fVkzIV8JLJ4OWazCZ63P3kwBKE4Z9Eg=; b=CgEL5p/N71v1vHqOGRcbCwvtGBsrJRxFyutd9GhXm2JepRSJPmrYe8vAleAooMykow cGiLi4ROkbPFjhmcPWpB9YqkWXCbhabPsj+qZC/FIQncxNmBMQJI6PPLfqwagGRHQG5o qvOhTiTr+99C4aEgbYRv1hIvZDjzvIl0gh3GQ/Jaku2FOK/CRfY1eEcRvpHrWlrDqsq+ Jby319r7syGzR2LjBGxLe5UDAiGa6sCI2YVjScQDgkLOIc1UWfoVbMLgB/FhFZRGDlyp ftzqxhU21KeECEMtnNASewJVgEQgzeBwiu+CO+x3azYWLN7DPcszsIYL+o77TCwJUit7 EbrA== X-Gm-Message-State: AGi0PubMGla33rQ+f8hKBP0fCbxr933Xm6ASqC443hHkNyDPY+KOWeYP m6CUG3MDARIgs0MEJ1/BIIlPDJ8hIRz63gWZCJXeFhtParh/ X-Google-Smtp-Source: APiQypJjDnivtGjrXVVXX6qPLRwtG90L59xknFkl/xI2XrfEyOqYveejmrftzszBBpCWE8S4yvakjolrCifCExy1O5OMJ/ddCS4k MIME-Version: 1.0 X-Received: by 2002:a92:bbd8:: with SMTP id x85mr17736262ilk.40.1586098513205; Sun, 05 Apr 2020 07:55:13 -0700 (PDT) Date: Sun, 05 Apr 2020 07:55:13 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000075615505a28c569e@google.com> Subject: WARNING: can't dereference registers at ADDR for ip interrupt_entry From: syzbot To: bp@alien8.de, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, pbonzini@redhat.com, sean.j.christopherson@intel.com, suravee.suthikulpanit@amd.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: a0ba26f3 Merge git://git.kernel.org/pub/scm/linux/kernel/g.. git tree: bpf console output: https://syzkaller.appspot.com/x/log.txt?x=1669fcb7e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=27392dd2975fd692 dashboard link: https://syzkaller.appspot.com/bug?extid=be0c7be873b78b57c065 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17ab1edbe00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150eb063e00000 The bug was bisected to: commit 24bbf74c0c36bfbaa276c9921b55b844018b241e Author: Suravee Suthikulpanit Date: Thu Nov 14 20:15:07 2019 +0000 kvm: x86: Add APICv (de)activate request trace points bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12f1dadbe00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=11f1dadbe00000 console output: https://syzkaller.appspot.com/x/log.txt?x=16f1dadbe00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+be0c7be873b78b57c065@syzkaller.appspotmail.com Fixes: 24bbf74c0c36 ("kvm: x86: Add APICv (de)activate request trace points") WARNING: can't dereference registers at 00000000ebf55915 for ip interrupt_entry+0xb8/0xc0 arch/x86/entry/entry_64.S:579 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches