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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 43B44C433E2 for ; Tue, 8 Sep 2020 07:31:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FA2921D1A for ; Tue, 8 Sep 2020 07:31:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729285AbgIHHbZ (ORCPT ); Tue, 8 Sep 2020 03:31:25 -0400 Received: from mail-io1-f79.google.com ([209.85.166.79]:39119 "EHLO mail-io1-f79.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728601AbgIHHbW (ORCPT ); Tue, 8 Sep 2020 03:31:22 -0400 Received: by mail-io1-f79.google.com with SMTP id y16so2924754ioy.6 for ; Tue, 08 Sep 2020 00:31:21 -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=rmPvU3f+yZL7MTO2dIAyk2B7m78qJlVaW2bVimI04Ps=; b=nz4OCx+ypkltPS4xwX/NyjnrG0cRsU7f3UstlDYC9/ym4/OsliyUxEcO61DNQrOEYv gnLB3+Z14umHRl8wZU/U+p+D0Fvp1yM4BkLnD2lBxBzslGXdJtJlHS37kw6xwYxUhCY3 kMWCERXOI8qOWI0LCkBe6zhKe1A7JyeHec7bSB0kLnv0cjd8L2xnt565gwRkH5Ak55eq n6+yIOCNTtWa4Ev3lFaI2qnmx+NZVX9mSbWTwh1bc6XHZxhyxOwPRM46T4UQ+SjG6H3E 787da84zrQVQPlS1m0YPOv9FKA/gpOGVKLNJ79mmaf9DUO5spmwCWHSM+XBE3hgs2SLc bTbA== X-Gm-Message-State: AOAM532GKBTbAxhZzznK9oJLrvh8rfl0ucPKxOYVhYTMCsyYUyyIucV5 x0hHJ66so4QxzKJP8/99zS7M/MX/fH/t6W+0LTD9OWMad4/N X-Google-Smtp-Source: ABdhPJwPXRQ1b/beV5kAPxRtJWCT5e7/zur2D6+Jwk9T9hxKd8EMf7AOq5nyI/63FcztcUHumZUpeQdIFW2DSfuvMuW0JZHWg7fZ MIME-Version: 1.0 X-Received: by 2002:a92:9a15:: with SMTP id t21mr23074428ili.289.1599550281494; Tue, 08 Sep 2020 00:31:21 -0700 (PDT) Date: Tue, 08 Sep 2020 00:31:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005435f305aec852b7@google.com> Subject: WARNING: can't access registers at asm_exc_general_protection 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: f4d51dff Linux 5.9-rc4 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=135135cd900000 kernel config: https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9 dashboard link: https://syzkaller.appspot.com/bug?extid=037ca50874f4d39f375d compiler: gcc (GCC) 10.1.0-syz 20200507 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+037ca50874f4d39f375d@syzkaller.appspotmail.com WARNING: can't access registers at asm_exc_general_protection+0x1e/0x30 arch/x86/include/asm/idtentry.h:532 --- 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.