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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 781CBC43461 for ; Fri, 4 Sep 2020 01:09:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D43E20758 for ; Fri, 4 Sep 2020 01:09:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729572AbgIDBJS (ORCPT ); Thu, 3 Sep 2020 21:09:18 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:45639 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728107AbgIDBJR (ORCPT ); Thu, 3 Sep 2020 21:09:17 -0400 Received: by mail-il1-f197.google.com with SMTP id m80so3623965ilb.12 for ; Thu, 03 Sep 2020 18:09:17 -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=cSL67TLJvEmgtIDBTfO6A720IoqfNhae335Zm4JQXZ8=; b=o21XKbZsBgLcQPmCrriIvdwfpU1u/IHBv622GssA9MdQ4CmjMK/NBcQDcTuLjgO1uL Hcy6/Hyi39rszfeezCeybej3wX2AxVewsnO8AmS2NmllJsPTGnd7WXStLUbHzOFIe/qA kwSvIq62pXvxZ52/GzFXhU593O9oCu/9+dc+EyMl6Fm3xOGEJYqhvsK+UgiKXXi95jPt glRhE7XvzwV94M5bTkEmadTW+IB0hL+B0qqHbRdWZaX3EVzQicCZ+4zWcId0RCV4Qxp2 6pTKNPO9tqF9m/bfwwf7a29iREfGfcMUDGcWd/PhV0snbxtHn2Eio5Bd27Eol7EidEgg yuQA== X-Gm-Message-State: AOAM532LrzS8IXeAvN8ngUFoft1rKNZWBl4jhxTdcH6g1B5EBLdGDiU1 jcpNYsRz2/Ulyn4AcE0sMoibIr56bPNaGE+Xx7WQtemt+2h3 X-Google-Smtp-Source: ABdhPJzG6+5A187b9J8tEzVfaoHof553jC1cUDPcCSdWlWwHFxpSSZHdumhSDNaxrvKtr1xRYRyOBFn5aCW1dkv7hRHvQJLYVgNd MIME-Version: 1.0 X-Received: by 2002:a92:985a:: with SMTP id l87mr5711913ili.2.1599181756753; Thu, 03 Sep 2020 18:09:16 -0700 (PDT) Date: Thu, 03 Sep 2020 18:09:16 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008aee6905ae72843d@google.com> Subject: WARNING: can't access registers at asm_sysvec_apic_timer_interrupt From: syzbot To: alexandre.chartre@oracle.com, bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: dcc5c6f0 Merge tag 'x86-urgent-2020-08-30' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1752eac1900000 kernel config: https://syzkaller.appspot.com/x/.config?x=978db74cb30aa994 dashboard link: https://syzkaller.appspot.com/bug?extid=9aecaf2584beaefa1614 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1104e485900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15f7b769900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9aecaf2584beaefa1614@syzkaller.appspotmail.com WARNING: can't access registers at asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches