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 D7A04C433EF for ; Sat, 12 Feb 2022 22:47:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232227AbiBLWr2 (ORCPT ); Sat, 12 Feb 2022 17:47:28 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:58408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232214AbiBLWr1 (ORCPT ); Sat, 12 Feb 2022 17:47:27 -0500 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87DAF23BE1 for ; Sat, 12 Feb 2022 14:47:23 -0800 (PST) Received: by mail-io1-f70.google.com with SMTP id k20-20020a5d91d4000000b0061299fad2fdso8594487ior.21 for ; Sat, 12 Feb 2022 14:47:23 -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=P2jL7sQj/TjQng7PKMAkeDTbtim/XRQtA01kz0TN724=; b=dxtH3tleV75r6cU4OGPg9up8X82CwDJbsL45EK8sT7jmyooGRrVQa814ezm+sGaCDg S28rB8XdanPil3VoYy2qMWygukGGyXGtQ9xpt9ToOLVRDYPz/LDCP6r2cB3qnWEc6/Uy XqFLANdQrts1uCaS/iofwB8r+2wJezfe6oGkzSAZQtkL0cNq1IuO1vZMdC7g34C9/f+y sjtHfCwqmqSgftoYJ2Dwg0R6c6Mx2ptyzi5GB6uc364BcZVRaZdoh9SWktaySa/5PpFH eV4buuw/0FMR/DlkcocHDcGlECsRWTT+BIbeJ64RZBNbno8EirUesoRLk8Q8EUhUUYO9 k1qQ== X-Gm-Message-State: AOAM530BchBLN4KtaJnKKvxkyBWWO5Y8fh4v+9p8M4r8eRKAblptCYbV NieNDVSQlbIYgWR1UF42+mLMY2twhuhyCxZCIwpbAosQoNi4 X-Google-Smtp-Source: ABdhPJzYFI6mQUpc72tbVCAcFfNBWcmMCEo8fuxfc/6Lc9bJZ0i5JB6ueuzKE6M7SySVfHYDwJiwU1JMb7DLEwuxIqpE+Z3hbmYP MIME-Version: 1.0 X-Received: by 2002:a92:bd08:: with SMTP id c8mr4213452ile.110.1644706042783; Sat, 12 Feb 2022 14:47:22 -0800 (PST) Date: Sat, 12 Feb 2022 14:47:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000070ac6505d7d9f7a8@google.com> Subject: [syzbot] kernel BUG in vhost_get_vq_desc From: syzbot To: jasowang@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, virtualization@lists.linux-foundation.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 83e396641110 Merge tag 'soc-fixes-5.17-1' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1282df74700000 kernel config: https://syzkaller.appspot.com/x/.config?x=5707221760c00a20 dashboard link: https://syzkaller.appspot.com/bug?extid=3140b17cb44a7b174008 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+3140b17cb44a7b174008@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at drivers/vhost/vhost.c:2335! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9449 Comm: vhost-9447 Not tainted 5.17.0-rc3-syzkaller-00247-g83e396641110 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vhost_get_vq_desc+0x1d43/0x22c0 drivers/vhost/vhost.c:2335 Code: 00 00 00 48 c7 c6 00 ac 9c 8a 48 c7 c7 28 27 8e 8d 48 89 ca 48 c1 e1 04 48 01 d9 e8 77 23 29 fd e9 74 ff ff ff e8 bd 3f a3 fa <0f> 0b e8 b6 3f a3 fa 48 8b 54 24 18 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc9000f527b88 EFLAGS: 00010212 RAX: 0000000000000133 RBX: 0000000000000001 RCX: ffffc9000ef65000 RDX: 0000000000040000 RSI: ffffffff86d46e33 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff86d45f2c R11: 0000000000000000 R12: ffff88802bac4d68 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88802bac4bb0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c74f8a718 CR3: 000000002bb11000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vhost_vsock_handle_tx_kick+0x277/0xa20 drivers/vhost/vsock.c:522 vhost_worker+0x23d/0x3d0 drivers/vhost/vhost.c:372 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vhost_get_vq_desc+0x1d43/0x22c0 drivers/vhost/vhost.c:2335 Code: 00 00 00 48 c7 c6 00 ac 9c 8a 48 c7 c7 28 27 8e 8d 48 89 ca 48 c1 e1 04 48 01 d9 e8 77 23 29 fd e9 74 ff ff ff e8 bd 3f a3 fa <0f> 0b e8 b6 3f a3 fa 48 8b 54 24 18 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc9000f527b88 EFLAGS: 00010212 RAX: 0000000000000133 RBX: 0000000000000001 RCX: ffffc9000ef65000 RDX: 0000000000040000 RSI: ffffffff86d46e33 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff86d45f2c R11: 0000000000000000 R12: ffff88802bac4d68 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88802bac4bb0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c7679a1b8 CR3: 000000002bb11000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.