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 A8BB2C433EF for ; Sun, 5 Dec 2021 13:42:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234211AbhLENpu (ORCPT ); Sun, 5 Dec 2021 08:45:50 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:38544 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229768AbhLENpu (ORCPT ); Sun, 5 Dec 2021 08:45:50 -0500 Received: by mail-io1-f71.google.com with SMTP id l124-20020a6b3e82000000b005ed165a1506so6176957ioa.5 for ; Sun, 05 Dec 2021 05:42:23 -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=BLoWO8fU/36NhcynxRAv4DAnmt9NebCBPZToTu7jfYs=; b=55HdTEnlUscoQ52NbCDwlcfRycKonzV61qUpuRnEkbQpdT+xjSHvqVL5ZaWTpDSB1l t0KHsOUOm/iYwLsc8SarOP3wEmRB9kEuhbwTXKXt2BLW/miC3sQjG4cwkR/IBsE/wRGY Eyn7gIyZgAMSB5WpZeh/1upsr4ARKMCP0H25smg9/AXUWaeyTHQzcZ2nt7sXmab1gZ6R 3qa3DUV2PvLBZZkdvPnpyUCk9agga+f+3Vlyj0uzzxbapcNC/nME8wAPRzBbhYahYWc1 y0I4d70grXBmpqdnyWrDGpca1b5GR2HHm9yUg3b0eLrAiD+N9Psb4CXG/vsSNSEGpltT Qu+g== X-Gm-Message-State: AOAM5303Kefq4SQxMTB7Auwe33yUxg+8CF2sndAF6eFUAQdITv2jpdqN YhnbquXd0RcsR3vmTWJ/NTNzZvlSykW5+1i7yX9ytzciUL3X X-Google-Smtp-Source: ABdhPJzDpALVFkLTv3cF+GFRyhzE6CAXHW18DU8Sfw1XQ4Dx9HxYL4n0bZh6sz49+UxzGYA6idE/XnhUhbVlSAKUWJNW2+0vIMqW MIME-Version: 1.0 X-Received: by 2002:a6b:7306:: with SMTP id e6mr28206422ioh.25.1638711742821; Sun, 05 Dec 2021 05:42:22 -0800 (PST) Date: Sun, 05 Dec 2021 05:42:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000051f90e05d2664f1d@google.com> Subject: [syzbot] WARNING in nested_vmx_vmexit From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 5f58da2befa5 Merge tag 'drm-fixes-2021-12-03-1' of git://a.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14927309b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e9ea28d2c3c2c389 dashboard link: https://syzkaller.appspot.com/bug?extid=f1d2136db9c80d4733e8 compiler: Debian clang version 11.0.1-2, 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+f1d2136db9c80d4733e8@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 21158 at arch/x86/kvm/vmx/nested.c:4548 nested_vmx_vmexit+0x16bd/0x17e0 arch/x86/kvm/vmx/nested.c:4547 Modules linked in: CPU: 0 PID: 21158 Comm: syz-executor.1 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nested_vmx_vmexit+0x16bd/0x17e0 arch/x86/kvm/vmx/nested.c:4547 Code: df e8 17 88 a9 00 e9 b1 f7 ff ff 89 d9 80 e1 07 38 c1 0f 8c 51 eb ff ff 48 89 df e8 4d 87 a9 00 e9 44 eb ff ff e8 63 b3 5d 00 <0f> 0b e9 2e f8 ff ff e8 57 b3 5d 00 0f 0b e9 00 f1 ff ff 89 e9 80 RSP: 0018:ffffc9000439f6e8 EFLAGS: 00010293 RAX: ffffffff8126d4cd RBX: 0000000000000000 RCX: ffff888032290000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 0000000000000001 R08: ffffffff8126ccf0 R09: ffffed1003cd9808 R10: ffffed1003cd9808 R11: 0000000000000000 R12: ffff88801e6cc000 R13: ffff88802f96e000 R14: dffffc0000000000 R15: 1ffff11005f2dc5d FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb73aecedd8 CR3: 00000000143a4000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vmx_leave_nested arch/x86/kvm/vmx/nested.c:6220 [inline] nested_vmx_free_vcpu+0x83/0xc0 arch/x86/kvm/vmx/nested.c:330 vmx_free_vcpu+0x11f/0x2a0 arch/x86/kvm/vmx/vmx.c:6799 kvm_arch_vcpu_destroy+0x6b/0x240 arch/x86/kvm/x86.c:10989 kvm_vcpu_destroy+0x29/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:441 kvm_free_vcpus arch/x86/kvm/x86.c:11426 [inline] kvm_arch_destroy_vm+0x3ef/0x6b0 arch/x86/kvm/x86.c:11545 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1189 [inline] kvm_put_kvm+0x751/0xe40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1220 kvm_vcpu_release+0x53/0x60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3489 __fput+0x3fc/0x870 fs/file_table.c:280 task_work_run+0x146/0x1c0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x705/0x24f0 kernel/exit.c:832 do_group_exit+0x168/0x2d0 kernel/exit.c:929 get_signal+0x1740/0x2120 kernel/signal.c:2852 arch_do_signal_or_restart+0x9c/0x730 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x191/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3388806b19 Code: Unable to access opcode bytes at RIP 0x7f3388806aef. RSP: 002b:00007f338773a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f338891a0e8 RCX: 00007f3388806b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f338891a0e8 RBP: 00007f338891a0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f338891a0ec R13: 00007fffbe0e838f R14: 00007f338773a300 R15: 0000000000022000 --- 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.