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 B3E0CC6FA86 for ; Tue, 27 Sep 2022 22:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231236AbiI0WUe (ORCPT ); Tue, 27 Sep 2022 18:20:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231496AbiI0WUc (ORCPT ); Tue, 27 Sep 2022 18:20:32 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 908451B8689 for ; Tue, 27 Sep 2022 15:20:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664317230; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=B7hn20Zeqkcubja41/WChKWpPqLMVS3GAmGLnKHDhAU=; b=Yx5IJqa2rX8UXQFrq7LE+D/drZkgo1Cin0jxNPbBwX6G0odGMRYuSaoCqtH/yRsK+iaDqr N4p5dxCca/S+qk+NZfZba9fMWluSqUEgRp2HqrpcSeE2Hc1DEmjm4rbaO7jUZa0WONreaq SOrvuTFdYjcRW26fPNJHDH3iLHiabJ0= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-371-kPduZq6XOYSHslBxaWjhLA-1; Tue, 27 Sep 2022 18:20:27 -0400 X-MC-Unique: kPduZq6XOYSHslBxaWjhLA-1 Received: by mail-wm1-f69.google.com with SMTP id h187-20020a1c21c4000000b003b51369ff1bso42381wmh.3 for ; Tue, 27 Sep 2022 15:20:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=B7hn20Zeqkcubja41/WChKWpPqLMVS3GAmGLnKHDhAU=; b=LnOXL1lsUUB+mFdYMNotIZix9c2eQQMsT2IRKJiUjeSfK6olKQeP+dYvukkk4ClWpZ +7jk8rNiaAWxd8evLYPmuhz7LJs+7dWSFFJ+2d2IybxaEDWfkAZzG8FP8lu2Yc/584a7 KHMvTZAcrGa+H37uhHZfqyUBHIS7I21oKQp1oS0Kg2ExKniRhFV0v2iXRpDV4BAWh989 4znomCAdgUlWQrGCeVmM2yB4uwy9bsmYnmA6XXFSskEkg0aIS+2EX5+Rqa2eNSwIDr9y dWjeHsMpYA3o0guSRV4UuMdqa+mRlNRdJ6X9FVw2n+0O6IJG+5Dhxcrley9fw78mSw+O xG3Q== X-Gm-Message-State: ACrzQf3/telGR6qNk4zaebfPKWVaDReXnqcBD8DMuBV6x3S/CvLcumvO wz663OyemsFt5GroWboFQLc1qzViFCtZZHrQ5RaaJdH3YblHgU3S0LJO+2k09H4wb9byKxD6k0P BvSG9N5EZBDgPeIvy X-Received: by 2002:a05:6000:1d9d:b0:22a:745b:9f00 with SMTP id bk29-20020a0560001d9d00b0022a745b9f00mr18158785wrb.280.1664317226254; Tue, 27 Sep 2022 15:20:26 -0700 (PDT) X-Google-Smtp-Source: AMsMyM6oB7tbkGtVRI3gvZ8k+SQXcKmBMF8mKtNbT7iyUkMcWoAG8FRHgS74kE0f7DBUAGmZvRbnXA== X-Received: by 2002:a05:6000:1d9d:b0:22a:745b:9f00 with SMTP id bk29-20020a0560001d9d00b0022a745b9f00mr18158769wrb.280.1664317225999; Tue, 27 Sep 2022 15:20:25 -0700 (PDT) Received: from redhat.com ([2.55.47.213]) by smtp.gmail.com with ESMTPSA id i1-20020a5d4381000000b002205cbc1c74sm2663721wrq.101.2022.09.27.15.20.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Sep 2022 15:20:25 -0700 (PDT) Date: Tue, 27 Sep 2022 18:20:21 -0400 From: "Michael S. Tsirkin" To: syzbot Cc: ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, hawk@kernel.org, jasowang@redhat.com, john.fastabend@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, virtualization@lists.linux-foundation.org, hch@lst.de Subject: Re: [syzbot] usb-testing boot error: BUG: unable to handle kernel paging request in virtnet_set_affinity Message-ID: <20220927181950-mutt-send-email-mst@kernel.org> References: <0000000000008d61ee05e6d9bb0a@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000008d61ee05e6d9bb0a@google.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, Aug 22, 2022 at 12:48:32PM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: ad57410d231d usb: gadget: rndis: use %u instead of %d to p.. > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing > console output: https://syzkaller.appspot.com/x/log.txt?x=17472b85080000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3cb39b084894e9a5 > dashboard link: https://syzkaller.appspot.com/bug?extid=0cb3309ee74d3c0c431c > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+0cb3309ee74d3c0c431c@syzkaller.appspotmail.com > > PCI-DMA: Using software bounce buffering for IO (SWIOTLB) > software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) > RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer > clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6feccdd0, max_idle_ns: 440795259471 ns > clocksource: Switched to clocksource tsc > Initialise system trusted keyrings > workingset: timestamp_bits=40 max_order=21 bucket_order=0 > NFS: Registering the id_resolver key type > Key type id_resolver registered > Key type id_legacy registered > 9p: Installing v9fs 9p2000 file system support > Key type asymmetric registered > Asymmetric key parser 'x509' registered > Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) > io scheduler mq-deadline registered > io scheduler kyber registered > usbcore: registered new interface driver udlfb > usbcore: registered new interface driver smscufx > input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 > ACPI: button: Power Button [PWRF] > input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 > ACPI: button: Sleep Button [SLPF] > ACPI: \_SB_.LNKC: Enabled at IRQ 11 > virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver > ACPI: \_SB_.LNKD: Enabled at IRQ 10 > virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver > ACPI: \_SB_.LNKB: Enabled at IRQ 10 > virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver > virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver > Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A > 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A > 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A > 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A > Non-volatile memory driver v1.3 > Linux agpgart interface v0.103 > ACPI: bus type drm_connector registered > usbcore: registered new interface driver udl > loop: module loaded > usbcore: registered new interface driver rtsx_usb > usbcore: registered new interface driver viperboard > usbcore: registered new interface driver dln2 > usbcore: registered new interface driver pn533_usb > usbcore: registered new interface driver port100 > usbcore: registered new interface driver nfcmrvl > scsi host0: Virtio SCSI HBA > scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 > sd 0:0:1:0: Attached scsi generic sg0 type 0 > Rounding down aligned max_sectors from 4294967295 to 4294967288 > db_root: cannot open: /etc/target > BUG: unable to handle page fault for address: ffffdc0000000000 > #PF: supervisor read access in kernel mode > #PF: error_code(0x0000) - not-present page > PGD 100026067 P4D 100026067 PUD 0 > Oops: 0000 [#1] PREEMPT SMP KASAN > CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc1-syzkaller-00005-gad57410d231d #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 > RIP: 0010:virtnet_set_affinity+0x2e4/0x600 drivers/net/virtio_net.c:2303 > Code: e8 03 42 80 3c 30 00 0f 85 de 02 00 00 48 8b 44 24 10 48 8d 1c 80 48 8b 44 24 18 48 c1 e3 08 48 03 58 20 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 a9 02 00 00 4c 8b 23 49 8d 7c 24 20 48 89 f8 > RSP: 0000:ffffc9000001f980 EFLAGS: 00010a06 > RAX: 1fffe00000000000 RBX: ffff000000000000 RCX: 0000000000000000 > RDX: ffff8881002a8000 RSI: ffffffff82fd75e3 RDI: 0000000000000004 > RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000001 > R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 > R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000001f9f8 > FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > > init_vqs drivers/net/virtio_net.c:3611 [inline] > init_vqs drivers/net/virtio_net.c:3597 [inline] > virtnet_probe+0x11ed/0x30f0 drivers/net/virtio_net.c:3904 > virtio_dev_probe+0x577/0x870 drivers/virtio/virtio.c:305 > call_driver_probe drivers/base/dd.c:530 [inline] > really_probe+0x249/0xb90 drivers/base/dd.c:609 > __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748 > driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778 > __driver_attach+0x223/0x550 drivers/base/dd.c:1150 > bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 > bus_add_driver+0x4c9/0x640 drivers/base/bus.c:618 > driver_register+0x220/0x3a0 drivers/base/driver.c:240 > virtio_net_driver_init+0x93/0xd2 drivers/net/virtio_net.c:4108 > do_one_initcall+0xfe/0x650 init/main.c:1296 > do_initcall_level init/main.c:1369 [inline] > do_initcalls init/main.c:1385 [inline] > do_basic_setup init/main.c:1404 [inline] > kernel_init_freeable+0x6ac/0x735 init/main.c:1611 > kernel_init+0x1a/0x1d0 init/main.c:1500 > ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 > > Modules linked in: > CR2: ffffdc0000000000 > ---[ end trace 0000000000000000 ]--- > RIP: 0010:virtnet_set_affinity+0x2e4/0x600 drivers/net/virtio_net.c:2303 So this is not new it turns out. Was on vacation and missed it. > Code: e8 03 42 80 3c 30 00 0f 85 de 02 00 00 48 8b 44 24 10 48 8d 1c 80 48 8b 44 24 18 48 c1 e3 08 48 03 58 20 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 a9 02 00 00 4c 8b 23 49 8d 7c 24 20 48 89 f8 > RSP: 0000:ffffc9000001f980 EFLAGS: 00010a06 > RAX: 1fffe00000000000 RBX: ffff000000000000 RCX: 0000000000000000 > RDX: ffff8881002a8000 RSI: ffffffff82fd75e3 RDI: 0000000000000004 > RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000001 > R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 > R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000001f9f8 > FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > ---------------- > Code disassembly (best guess): > 0: e8 03 42 80 3c callq 0x3c804208 > 5: 30 00 xor %al,(%rax) > 7: 0f 85 de 02 00 00 jne 0x2eb > d: 48 8b 44 24 10 mov 0x10(%rsp),%rax > 12: 48 8d 1c 80 lea (%rax,%rax,4),%rbx > 16: 48 8b 44 24 18 mov 0x18(%rsp),%rax > 1b: 48 c1 e3 08 shl $0x8,%rbx > 1f: 48 03 58 20 add 0x20(%rax),%rbx > 23: 48 89 d8 mov %rbx,%rax > 26: 48 c1 e8 03 shr $0x3,%rax > * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction > 2f: 0f 85 a9 02 00 00 jne 0x2de > 35: 4c 8b 23 mov (%rbx),%r12 > 38: 49 8d 7c 24 20 lea 0x20(%r12),%rdi > 3d: 48 89 f8 mov %rdi,%rax > > > --- > 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.