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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1A34C433F5 for ; Tue, 8 Feb 2022 08:31:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349724AbiBHIb1 (ORCPT ); Tue, 8 Feb 2022 03:31:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349663AbiBHIbY (ORCPT ); Tue, 8 Feb 2022 03:31:24 -0500 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80ACBC0401F6 for ; Tue, 8 Feb 2022 00:31:22 -0800 (PST) Received: by mail-io1-f69.google.com with SMTP id n13-20020a056602340d00b006361f2312deso10892684ioz.9 for ; Tue, 08 Feb 2022 00:31:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=FLyZSs3ebVVisW8BXRm0I+PVP9xcVAwmbkFnRlIj1nU=; b=EIKeNiAx/8r/5elD7d8K3e4tx4WPbaOQUQ+XcdmNZiSqK0RiQJ0liZc1tlncwnDWuM GRWQsY/8l0DiwnhhCRtrtIoFnD+jSQLzKMxH7nSSRMgm2/9fVIe+UaEu6Zi4gt/b9rLq C7wyuo8GZKOuHEo/sKQTXl0nd4CaPEaxeI5aghVDAr65p7gaF0P9ZM3BAGkbyp+YivDP TbrQu8bNWos2qvn1EEQyVHsW4XSbRXiKLPr7DwQrc7hstGZfdWwAwBsbVPQdCXZPg6CH 7F8jfQXm++6xYVh/2B2nOfoDSKkNkRzxfBaUq73BFEhw4VBXuZhE/elAvCaNODDW8RMn BJzA== X-Gm-Message-State: AOAM530EMnWqNOdfm6BpsJNPQTzbPFHEp0+8zoHElKJph/bJnqYfSx0t tHaYe70TgJs0uB0Vxn2Yk90mgzyn+ylAt8uJixvTppz0/N/N X-Google-Smtp-Source: ABdhPJxHmkkqXuhPRzuy23I8bk48WbkFeCurfAw6YtA7sSRp/CsrBKf711a+2mwoKfp4HnMcccbl6Q5Yf6KNVko2w3ycu9SD7lJj MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a87:: with SMTP id k7mr1623976ilv.259.1644309081847; Tue, 08 Feb 2022 00:31:21 -0800 (PST) Date: Tue, 08 Feb 2022 00:31:21 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b97df105d77d8a9b@google.com> Subject: [syzbot] WARNING in fpregs_assert_state_consistent From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: ef6b35306dd8 Add linux-next specific files for 20220204 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14d34d0c700000 kernel config: https://syzkaller.appspot.com/x/.config?x=e0431e0b00810b4f dashboard link: https://syzkaller.appspot.com/bug?extid=3c0a98026cec79f550a2 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 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+3c0a98026cec79f550a2@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3586 at arch/x86/kernel/fpu/core.c:768 fpregs_assert_state_consistent arch/x86/kernel/fpu/core.c:768 [inline] WARNING: CPU: 0 PID: 3586 at arch/x86/kernel/fpu/core.c:768 fpregs_assert_state_consistent+0x80/0xe0 arch/x86/kernel/fpu/core.c:761 Modules linked in: CPU: 0 PID: 3586 Comm: syz-fuzzer Not tainted 5.17.0-rc2-next-20220204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fpregs_assert_state_consistent arch/x86/kernel/fpu/core.c:768 [inline] RIP: 0010:fpregs_assert_state_consistent+0x80/0xe0 arch/x86/kernel/fpu/core.c:761 Code: e9 55 ca 4c 00 e8 50 ca 4c 00 e8 db 97 2b 08 89 c3 65 48 8b 05 e9 90 d6 7e 4c 8d a5 80 18 00 00 49 39 c4 74 10 e8 30 ca 4c 00 <0f> 0b 5b 5d 41 5c e9 25 ca 4c 00 e8 20 ca 4c 00 4c 89 e2 48 b8 00 RSP: 0018:ffffc90001acfef0 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88807f2e9d40 RSI: ffffffff812bdec0 RDI: 0000000000000000 RBP: ffff88807f2e9d40 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff812bde8e R11: 0000000000000000 R12: ffff88807f2eb5c0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 000000c000030490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6371976520 CR3: 000000007f14b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_exit_to_user_mode_prepare arch/x86/include/asm/entry-common.h:56 [inline] exit_to_user_mode_prepare+0x57/0x290 kernel/entry/common.c:209 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x5edb02 Code: cc cc cc cc cc cc cc cc 49 3b 66 10 0f 86 fd 01 00 00 48 83 ec 48 48 89 6c 24 40 48 8d 6c 24 40 48 89 44 24 50 48 89 5c 24 58 <48> 8b 13 48 8b 70 20 8b 78 18 eb 06 48 89 fa 44 89 c7 48 89 54 24 RSP: 002b:000000c000241b28 EFLAGS: 00000216 RAX: 000000c0006c4000 RBX: 000000c0006c4028 RCX: 00000000000032c6 RDX: 0000000000008000 RSI: 000000c0006c4000 RDI: 0000000000000009 RBP: 000000c000241b68 R08: 00000000000032c5 R09: 000000c0006ca000 R10: 0000000000004d3b R11: 0000000000003250 R12: 0000000000002000 R13: 0000000000002dab R14: 000000c00029aea0 R15: 0000000000000002 --- 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.