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[23.128.96.18]) by mx.google.com with ESMTP id r21si1584928eju.300.2020.04.28.01.50.49; Tue, 28 Apr 2020 01:51:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726566AbgD1IrS (ORCPT + 99 others); Tue, 28 Apr 2020 04:47:18 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:37643 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726495AbgD1IrR (ORCPT ); Tue, 28 Apr 2020 04:47:17 -0400 Received: by mail-io1-f71.google.com with SMTP id c26so23354388ioa.4 for ; Tue, 28 Apr 2020 01:47:16 -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=N6Rro8J4HHn9Y/Rlxw1ORWexMqGsveNGsdaPyZaoh7U=; b=C/fB4r+vIijPP1BTQPEnTXlcd1hCxWW2+CiyXNKezWiT/2nDGox2+pjdKhB5GLqKek zTYTQPYcUuCDSBB+UtsK968fGmNkofSZ3OVfYAnQwn50YFaOU6fgK5f8NYoun+k/Z4iI pl8h4UELO2Oj0ZKSMEs6t1NkmeZTaa11xroKfDTdCabRzMfZxJJyD3LXQg/Vd852wTbw /unRaKeJm8bBZqZXBRvQ5u9rpxglq7OXegk95GdxhmxBA56aWcmM6LAMM3eOaNDrd/gY QW9KPGAtU85/tXb1jXJWntN75Dq7H6PjYpaQwjhGmqDoSuhovnJlESvNYwP8s4QoEvJ6 MGUw== X-Gm-Message-State: AGi0PuYSeeFQowASwswEkqPREzatEZr+Kp/5owArw8GOXWTCtC2cmiVs 2O14hMIsSLozMfwtxNNHsX6xB4ry7nyAWVXTNEl+B5+Gzd9P MIME-Version: 1.0 X-Received: by 2002:a05:6602:2cc4:: with SMTP id j4mr24539023iow.144.1588063635476; Tue, 28 Apr 2020 01:47:15 -0700 (PDT) Date: Tue, 28 Apr 2020 01:47:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000df9a9805a455e07b@google.com> Subject: linux-next boot error: WARNING: suspicious RCU usage in ipmr_get_table From: syzbot To: davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.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 crash on: HEAD commit: 0fd02a5d Add linux-next specific files for 20200428 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1696e5d8100000 kernel config: https://syzkaller.appspot.com/x/.config?x=9748c3e397b4529 dashboard link: https://syzkaller.appspot.com/bug?extid=1519f497f2f9f08183c6 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+1519f497f2f9f08183c6@syzkaller.appspotmail.com SCSI subsystem initialized ACPI: bus type USB registered usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb mc: Linux media interface: v0.10 videodev: Linux video capture interface: v2.00 pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti PTP clock support registered EDAC MC: Ver: 3.0.0 Advanced Linux Sound Architecture Driver Initialized. PCI: Using ACPI for IRQ routing Bluetooth: Core ver 2.22 NET: Registered protocol family 31 Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: L2CAP socket layer initialized Bluetooth: SCO socket layer initialized NET: Registered protocol family 8 NET: Registered protocol family 20 NetLabel: Initializing NetLabel: domain hash size = 128 NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO NetLabel: unlabeled traffic allowed by default nfc: nfc_init: NFC Core ver 0.1 NET: Registered protocol family 39 clocksource: Switched to clocksource kvm-clock VFS: Disk quotas dquot_6.6.0 VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) FS-Cache: Loaded CacheFiles: Loaded TOMOYO: 2.6.0 Mandatory Access Control activated. AppArmor: AppArmor Filesystem Enabled pnp: PnP ACPI init pnp: PnP ACPI: found 7 devices clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] NET: Registered protocol family 2 tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc) TCP: Hash tables configured (established 65536 bind 65536) UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) ============================= WARNING: suspicious RCU usage 5.7.0-rc3-next-20200428-syzkaller #0 Not tainted ----------------------------- net/ipv4/ipmr.c:136 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by swapper/0/1: #0: ffffffff8a5a6330 (pernet_ops_rwsem){+.+.}-{3:3}, at: register_pernet_subsys+0x16/0x40 net/core/net_namespace.c:1257 stack backtrace: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc3-next-20200428-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 ipmr_get_table+0x130/0x160 net/ipv4/ipmr.c:136 ipmr_new_table net/ipv4/ipmr.c:403 [inline] ipmr_rules_init net/ipv4/ipmr.c:248 [inline] ipmr_net_init+0x133/0x430 net/ipv4/ipmr.c:3089 ops_init+0xaf/0x420 net/core/net_namespace.c:151 __register_pernet_operations net/core/net_namespace.c:1140 [inline] register_pernet_operations+0x346/0x840 net/core/net_namespace.c:1217 register_pernet_subsys+0x25/0x40 net/core/net_namespace.c:1258 ip_mr_init+0x36/0x168 net/ipv4/ipmr.c:3140 inet_init+0x298/0x424 net/ipv4/af_inet.c:2005 do_one_initcall+0x10a/0x7d0 init/main.c:1159 do_initcall_level init/main.c:1232 [inline] do_initcalls init/main.c:1248 [inline] do_basic_setup init/main.c:1268 [inline] kernel_init_freeable+0x501/0x5ae init/main.c:1454 kernel_init+0xd/0x1bb init/main.c:1359 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. NET: Registered protocol family 44 pci 0000:00:00.0: Limiting direct PCI/PCI transfers PCI: CLS 0 bytes, default 64 PCI-DMA: Using software bounce buffering for IO (SWIOTLB) software IO TLB: mapped [mem 0xaa600000-0xae600000] (64MB) RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer kvm: already loaded the other module clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns clocksource: Switched to clocksource tsc mce: Machine check injector initialized check: Scanning for low memory corruption every 60 seconds Initialise system trusted keyrings workingset: timestamp_bits=40 max_order=21 bucket_order=0 zbud: loaded DLM installed squashfs: version 4.0 (2009/01/31) Phillip Lougher FS-Cache: Netfs 'nfs' registered for caching NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered nfs4filelayout_init: NFSv4 File Layout Driver Registering... Installing knfsd (copyright (C) 1996 okir@monad.swb.de). FS-Cache: Netfs 'cifs' registered for caching Key type cifs.spnego registered Key type cifs.idmap registered ntfs: driver 2.1.32 [Flags: R/W]. fuse: init (API version 7.31) JFS: nTxBlock = 8192, nTxLock = 65536 SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled 9p: Installing v9fs 9p2000 file system support FS-Cache: Netfs '9p' registered for caching ocfs2: Registered cluster interface o2cb ocfs2: Registered cluster interface user OCFS2 User DLM kernel interface loaded gfs2: GFS2 installed FS-Cache: Netfs 'ceph' registered for caching ceph: loaded (mds proto 32) NET: Registered protocol family 38 async_tx: api initialized (async) Key type asymmetric registered Asymmetric key parser 'x509' registered Asymmetric key parser 'pkcs8' registered Key type pkcs7_test registered Asymmetric key parser 'tpm_parser' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered hgafb: HGA card not detected. hgafb: probe of hgafb.0 failed with error -22 usbcore: registered new interface driver udlfb uvesafb: failed to execute /sbin/v86d uvesafb: make sure that the v86d helper is installed and executable uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) uvesafb: vbe_init() failed with -22 uvesafb: probe of uvesafb.0 failed with error -22 vga16fb: mapped to 0x000000002f252cfb Console: switching to colour frame buffer device 80x30 fb0: VGA16 VGA frame buffer device input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: Sleep Button [SLPF] ioatdma: Intel(R) QuickData Technology Driver 5.00 PCI Interrupt Link [LNKC] enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver PCI Interrupt Link [LNKD] enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver PCI Interrupt Link [LNKA] enabled at IRQ 10 virtio-pci 0000:00:05.0: virtio_pci: leaving for legacy driver N_HDLC line discipline registered with maxframe=4096 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 Cyclades driver 2.6 Initializing Nozomi driver 2.1d RocketPort device driver module, version 2.09, 12-June-2003 No rocketport ports found; unloading driver Non-volatile memory driver v1.3 Linux agpgart interface v0.103 [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 usbcore: registered new interface driver udl brd: module loaded loop: module loaded zram: Added device: zram0 null_blk: module loaded nfcsim 0.2 initialized Loading iSCSI transport class v2.0-870. scsi host0: Virtio SCSI HBA st: Version 20160209, fixed bufsize 32768, s/g segs 256 slram: not enough parameters. ftl_cs: FTL header not found. wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) MACsec IEEE 802.1AE tun: Universal TUN/TAP device driver, 1.6 vcan: Virtual CAN interface driver vxcan: Virtual CAN Tunnel driver slcan: serial line CAN interface driver slcan: 10 dynamic interface channels. CAN device driver interface e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI e100: Copyright(c) 1999-2006 Intel Corporation e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI e1000: Copyright (c) 1999-2006 Intel Corporation. e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k e1000e: Copyright(c) 1999 - 2015 Intel Corporation. mkiss: AX.25 Multikiss, Hans Albas PE1AYX AX.25: 6pack driver, Revision: 0.3.0 AX.25: bpqether driver version 004 PPP generic driver version 2.4.2 PPP BSD Compression module registered PPP Deflate Compression module registered PPP MPPE Compression module registered NET: Registered protocol family 24 PPTP driver version 0.8.5 SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). CSLIP: code copyright 1989 Regents of the University of California. SLIP linefill/keepalive option. hdlc: HDLC support module revision 1.22 x25_asy: X.25 async: version 0.00 ALPHA (dynamic channels, max=256) DLCI driver v0.35, 4 Jan 1997, mike.mclagan@linux.org. LAPB Ethernet driver version 0.02 usbcore: registered new interface driver rndis_wlan mac80211_hwsim: initializing netlink fakelb driver is marked as deprecated, please use mac802154_hwsim! ieee802154fakelb ieee802154fakelb: added 2 fake ieee802154 hardware devices mac802154_hwsim mac802154_hwsim: Added 2 mac802154 hwsim hardware radios VMware vmxnet3 virtual NIC driver - version 1.4.17.0-k-NAPI pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver usbcore: registered new interface driver pegasus usbcore: registered new interface driver rtl8150 usbcore: registered new interface driver r8152 usbcore: registered new interface driver asix usbcore: registered new interface driver ax88179_178a usbcore: registered new interface driver cdc_ether usbcore: registered new interface driver dm9601 usbcore: registered new interface driver smsc75xx usbcore: registered new interface driver smsc95xx usbcore: registered new interface driver net1080 usbcore: registered new interface driver rndis_host usbcore: registered new interface driver cdc_subset usbcore: registered new interface driver zaurus usbcore: registered new interface driver MOSCHIP usb-ethernet driver usbcore: registered new interface driver cdc_ncm usbcore: registered new interface driver cdc_mbim VFIO - User Level meta-driver version: 0.3 aoe: AoE v85 initialised. ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-pci: EHCI PCI platform driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci-pci: OHCI PCI platform driver uhci_hcd: USB Universal Host Controller Interface driver usbcore: registered new interface driver cdc_acm cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new interface driver usblp usbcore: registered new interface driver cdc_wdm usbcore: registered new interface driver uas usbcore: registered new interface driver usb-storage usbcore: registered new interface driver ums-realtek usbcore: registered new interface driver usbserial_generic usbserial: USB Serial support registered for generic usbcore: registered new interface driver ch341 usbserial: USB Serial support registered for ch341-uart usbcore: registered new interface driver cp210x usbserial: USB Serial support registered for cp210x usbcore: registered new interface driver ftdi_sio usbserial: USB Serial support registered for FTDI USB Serial Device usbcore: registered new interface driver keyspan usbserial: USB Serial support registered for Keyspan - (without firmware) usbserial: USB Serial support registered for Keyspan 1 port adapter usbserial: USB Serial support registered for Keyspan 2 port adapter usbserial: USB Serial support registered for Keyspan 4 port adapter usbcore: registered new interface driver option usbserial: USB Serial support registered for GSM modem (1-port) usbcore: registered new interface driver oti6858 usbserial: USB Serial support registered for oti6858 usbcore: registered new interface driver pl2303 usbserial: USB Serial support registered for pl2303 usbcore: registered new interface driver qcserial usbserial: USB Serial support registered for Qualcomm USB modem usbcore: registered new interface driver sierra usbserial: USB Serial support registered for Sierra USB modem usbcore: registered new interface driver usb_serial_simple usbserial: USB Serial support registered for carelink usbserial: USB Serial support registered for zio usbserial: USB Serial support registered for funsoft usbserial: USB Serial support registered for flashloader usbserial: USB Serial support registered for google usbserial: USB Serial support registered for libtransistor usbserial: USB Serial support registered for vivopay usbserial: USB Serial support registered for moto_modem usbserial: USB Serial support registered for motorola_tetra usbserial: USB Serial support registered for novatel_gps usbserial: USB Serial support registered for hp4x usbserial: USB Serial support registered for suunto usbserial: USB Serial support registered for siemens_mpi dummy_hcd dummy_hcd.0: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.0: Dummy host controller dummy_hcd dummy_hcd.0: new USB bus registered, assigned bus number 1 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: Dummy host controller usb usb1: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb1: SerialNumber: dummy_hcd.0 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected dummy_hcd dummy_hcd.1: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.1: Dummy host controller dummy_hcd dummy_hcd.1: new USB bus registered, assigned bus number 2 usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: Dummy host controller usb usb2: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb2: SerialNumber: dummy_hcd.1 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected dummy_hcd dummy_hcd.2: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.2: Dummy host controller dummy_hcd dummy_hcd.2: new USB bus registered, assigned bus number 3 usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb3: Product: Dummy host controller usb usb3: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb3: SerialNumber: dummy_hcd.2 hub 3-0:1.0: USB hub found hub 3-0:1.0: 1 port detected dummy_hcd dummy_hcd.3: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.3: Dummy host controller dummy_hcd dummy_hcd.3: new USB bus registered, assigned bus number 4 usb usb4: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb4: Product: Dummy host controller usb usb4: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb4: SerialNumber: dummy_hcd.3 hub 4-0:1.0: USB hub found hub 4-0:1.0: 1 port detected dummy_hcd dummy_hcd.4: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.4: Dummy host controller dummy_hcd dummy_hcd.4: new USB bus registered, assigned bus number 5 usb usb5: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb5: Product: Dummy host controller usb usb5: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb5: SerialNumber: dummy_hcd.4 hub 5-0:1.0: USB hub found hub 5-0:1.0: 1 port detected dummy_hcd dummy_hcd.5: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.5: Dummy host controller dummy_hcd dummy_hcd.5: new USB bus registered, assigned bus number 6 usb usb6: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb6: Product: Dummy host controller usb usb6: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb6: SerialNumber: dummy_hcd.5 hub 6-0:1.0: USB hub found hub 6-0:1.0: 1 port detected dummy_hcd dummy_hcd.6: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.6: Dummy host controller dummy_hcd dummy_hcd.6: new USB bus registered, assigned bus number 7 usb usb7: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb7: Product: Dummy host controller usb usb7: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb7: SerialNumber: dummy_hcd.6 hub 7-0:1.0: USB hub found hub 7-0:1.0: 1 port detected dummy_hcd dummy_hcd.7: USB Host+Gadget Emulator, driver 02 May 2005 dummy_hcd dummy_hcd.7: Dummy host controller dummy_hcd dummy_hcd.7: new USB bus registered, assigned bus number 8 usb usb8: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb8: Product: Dummy host controller usb usb8: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller dummy_hcd usb usb8: SerialNumber: dummy_hcd.7 hub 8-0:1.0: USB hub found hub 8-0:1.0: 1 port detected using random self ethernet address using random host ethernet address Mass Storage Function, version: 2009/09/11 LUN: removable file: (no medium) no file given for LUN0 printk: console [ttyGS0] disabled g_multi dummy_udc.0: failed to start g_multi: -22 vhci_hcd vhci_hcd.0: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.0: new USB bus registered, assigned bus number 9 vhci_hcd: created sysfs vhci_hcd.0 usb usb9: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb9: Product: USB/IP Virtual Host Controller usb usb9: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb9: SerialNumber: vhci_hcd.0 hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected vhci_hcd vhci_hcd.0: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.0: new USB bus registered, assigned bus number 10 usb usb10: We don't know the algorithms for LPM for this host, disabling LPM. usb usb10: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb10: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb10: Product: USB/IP Virtual Host Controller usb usb10: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb10: SerialNumber: vhci_hcd.0 hub 10-0:1.0: USB hub found hub 10-0:1.0: 8 ports detected vhci_hcd vhci_hcd.1: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.1: new USB bus registered, assigned bus number 11 usb usb11: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb11: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb11: Product: USB/IP Virtual Host Controller usb usb11: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb11: SerialNumber: vhci_hcd.1 hub 11-0:1.0: USB hub found hub 11-0:1.0: 8 ports detected vhci_hcd vhci_hcd.1: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.1: new USB bus registered, assigned bus number 12 usb usb12: We don't know the algorithms for LPM for this host, disabling LPM. usb usb12: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb12: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb12: Product: USB/IP Virtual Host Controller usb usb12: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb12: SerialNumber: vhci_hcd.1 hub 12-0:1.0: USB hub found hub 12-0:1.0: 8 ports detected vhci_hcd vhci_hcd.2: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.2: new USB bus registered, assigned bus number 13 usb usb13: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb13: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb13: Product: USB/IP Virtual Host Controller usb usb13: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb13: SerialNumber: vhci_hcd.2 hub 13-0:1.0: USB hub found hub 13-0:1.0: 8 ports detected vhci_hcd vhci_hcd.2: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.2: new USB bus registered, assigned bus number 14 usb usb14: We don't know the algorithms for LPM for this host, disabling LPM. usb usb14: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb14: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb14: Product: USB/IP Virtual Host Controller usb usb14: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb14: SerialNumber: vhci_hcd.2 hub 14-0:1.0: USB hub found hub 14-0:1.0: 8 ports detected vhci_hcd vhci_hcd.3: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.3: new USB bus registered, assigned bus number 15 usb usb15: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb15: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb15: Product: USB/IP Virtual Host Controller usb usb15: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb15: SerialNumber: vhci_hcd.3 hub 15-0:1.0: USB hub found hub 15-0:1.0: 8 ports detected vhci_hcd vhci_hcd.3: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.3: new USB bus registered, assigned bus number 16 usb usb16: We don't know the algorithms for LPM for this host, disabling LPM. usb usb16: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb16: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb16: Product: USB/IP Virtual Host Controller usb usb16: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb16: SerialNumber: vhci_hcd.3 hub 16-0:1.0: USB hub found hub 16-0:1.0: 8 ports detected vhci_hcd vhci_hcd.4: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.4: new USB bus registered, assigned bus number 17 usb usb17: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb17: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb17: Product: USB/IP Virtual Host Controller usb usb17: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb17: SerialNumber: vhci_hcd.4 hub 17-0:1.0: USB hub found hub 17-0:1.0: 8 ports detected vhci_hcd vhci_hcd.4: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.4: new USB bus registered, assigned bus number 18 usb usb18: We don't know the algorithms for LPM for this host, disabling LPM. usb usb18: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb18: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb18: Product: USB/IP Virtual Host Controller usb usb18: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb18: SerialNumber: vhci_hcd.4 hub 18-0:1.0: USB hub found hub 18-0:1.0: 8 ports detected vhci_hcd vhci_hcd.5: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.5: new USB bus registered, assigned bus number 19 usb usb19: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb19: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb19: Product: USB/IP Virtual Host Controller usb usb19: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb19: SerialNumber: vhci_hcd.5 hub 19-0:1.0: USB hub found hub 19-0:1.0: 8 ports detected vhci_hcd vhci_hcd.5: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.5: new USB bus registered, assigned bus number 20 usb usb20: We don't know the algorithms for LPM for this host, disabling LPM. usb usb20: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb20: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb20: Product: USB/IP Virtual Host Controller usb usb20: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb20: SerialNumber: vhci_hcd.5 hub 20-0:1.0: USB hub found hub 20-0:1.0: 8 ports detected vhci_hcd vhci_hcd.6: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.6: new USB bus registered, assigned bus number 21 usb usb21: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb21: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb21: Product: USB/IP Virtual Host Controller usb usb21: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb21: SerialNumber: vhci_hcd.6 hub 21-0:1.0: USB hub found hub 21-0:1.0: 8 ports detected vhci_hcd vhci_hcd.6: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.6: new USB bus registered, assigned bus number 22 usb usb22: We don't know the algorithms for LPM for this host, disabling LPM. usb usb22: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb22: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb22: Product: USB/IP Virtual Host Controller usb usb22: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb22: SerialNumber: vhci_hcd.6 hub 22-0:1.0: USB hub found hub 22-0:1.0: 8 ports detected vhci_hcd vhci_hcd.7: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.7: new USB bus registered, assigned bus number 23 usb usb23: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb23: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb23: Product: USB/IP Virtual Host Controller usb usb23: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb23: SerialNumber: vhci_hcd.7 hub 23-0:1.0: USB hub found hub 23-0:1.0: 8 ports detected vhci_hcd vhci_hcd.7: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.7: new USB bus registered, assigned bus number 24 usb usb24: We don't know the algorithms for LPM for this host, disabling LPM. usb usb24: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb24: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb24: Product: USB/IP Virtual Host Controller usb usb24: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb24: SerialNumber: vhci_hcd.7 hub 24-0:1.0: USB hub found hub 24-0:1.0: 8 ports detected vhci_hcd vhci_hcd.8: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.8: new USB bus registered, assigned bus number 25 usb usb25: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb25: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb25: Product: USB/IP Virtual Host Controller usb usb25: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb25: SerialNumber: vhci_hcd.8 hub 25-0:1.0: USB hub found hub 25-0:1.0: 8 ports detected vhci_hcd vhci_hcd.8: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.8: new USB bus registered, assigned bus number 26 usb usb26: We don't know the algorithms for LPM for this host, disabling LPM. usb usb26: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb26: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb26: Product: USB/IP Virtual Host Controller usb usb26: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb26: SerialNumber: vhci_hcd.8 hub 26-0:1.0: USB hub found hub 26-0:1.0: 8 ports detected vhci_hcd vhci_hcd.9: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.9: new USB bus registered, assigned bus number 27 usb usb27: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb27: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb27: Product: USB/IP Virtual Host Controller usb usb27: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb27: SerialNumber: vhci_hcd.9 hub 27-0:1.0: USB hub found hub 27-0:1.0: 8 ports detected vhci_hcd vhci_hcd.9: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.9: new USB bus registered, assigned bus number 28 usb usb28: We don't know the algorithms for LPM for this host, disabling LPM. usb usb28: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb28: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb28: Product: USB/IP Virtual Host Controller usb usb28: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb28: SerialNumber: vhci_hcd.9 hub 28-0:1.0: USB hub found hub 28-0:1.0: 8 ports detected vhci_hcd vhci_hcd.10: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.10: new USB bus registered, assigned bus number 29 usb usb29: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb29: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb29: Product: USB/IP Virtual Host Controller usb usb29: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb29: SerialNumber: vhci_hcd.10 hub 29-0:1.0: USB hub found hub 29-0:1.0: 8 ports detected vhci_hcd vhci_hcd.10: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.10: new USB bus registered, assigned bus number 30 usb usb30: We don't know the algorithms for LPM for this host, disabling LPM. usb usb30: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb30: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb30: Product: USB/IP Virtual Host Controller usb usb30: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb30: SerialNumber: vhci_hcd.10 hub 30-0:1.0: USB hub found hub 30-0:1.0: 8 ports detected vhci_hcd vhci_hcd.11: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.11: new USB bus registered, assigned bus number 31 usb usb31: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb31: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb31: Product: USB/IP Virtual Host Controller usb usb31: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb31: SerialNumber: vhci_hcd.11 hub 31-0:1.0: USB hub found hub 31-0:1.0: 8 ports detected vhci_hcd vhci_hcd.11: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.11: new USB bus registered, assigned bus number 32 usb usb32: We don't know the algorithms for LPM for this host, disabling LPM. usb usb32: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb32: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb32: Product: USB/IP Virtual Host Controller usb usb32: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb32: SerialNumber: vhci_hcd.11 hub 32-0:1.0: USB hub found hub 32-0:1.0: 8 ports detected vhci_hcd vhci_hcd.12: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.12: new USB bus registered, assigned bus number 33 usb usb33: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb33: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb33: Product: USB/IP Virtual Host Controller usb usb33: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb33: SerialNumber: vhci_hcd.12 hub 33-0:1.0: USB hub found hub 33-0:1.0: 8 ports detected vhci_hcd vhci_hcd.12: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.12: new USB bus registered, assigned bus number 34 usb usb34: We don't know the algorithms for LPM for this host, disabling LPM. usb usb34: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb34: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb34: Product: USB/IP Virtual Host Controller usb usb34: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb34: SerialNumber: vhci_hcd.12 hub 34-0:1.0: USB hub found hub 34-0:1.0: 8 ports detected vhci_hcd vhci_hcd.13: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.13: new USB bus registered, assigned bus number 35 usb usb35: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb35: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb35: Product: USB/IP Virtual Host Controller usb usb35: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb35: SerialNumber: vhci_hcd.13 hub 35-0:1.0: USB hub found hub 35-0:1.0: 8 ports detected vhci_hcd vhci_hcd.13: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.13: new USB bus registered, assigned bus number 36 usb usb36: We don't know the algorithms for LPM for this host, disabling LPM. usb usb36: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb36: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb36: Product: USB/IP Virtual Host Controller usb usb36: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb36: SerialNumber: vhci_hcd.13 hub 36-0:1.0: USB hub found hub 36-0:1.0: 8 ports detected vhci_hcd vhci_hcd.14: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.14: new USB bus registered, assigned bus number 37 usb usb37: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb37: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb37: Product: USB/IP Virtual Host Controller usb usb37: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb37: SerialNumber: vhci_hcd.14 hub 37-0:1.0: USB hub found hub 37-0:1.0: 8 ports detected vhci_hcd vhci_hcd.14: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.14: new USB bus registered, assigned bus number 38 usb usb38: We don't know the algorithms for LPM for this host, disabling LPM. usb usb38: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb38: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb38: Product: USB/IP Virtual Host Controller usb usb38: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb38: SerialNumber: vhci_hcd.14 hub 38-0:1.0: USB hub found hub 38-0:1.0: 8 ports detected vhci_hcd vhci_hcd.15: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.15: new USB bus registered, assigned bus number 39 usb usb39: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.07 usb usb39: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb39: Product: USB/IP Virtual Host Controller usb usb39: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb39: SerialNumber: vhci_hcd.15 hub 39-0:1.0: USB hub found hub 39-0:1.0: 8 ports detected vhci_hcd vhci_hcd.15: USB/IP Virtual Host Controller vhci_hcd vhci_hcd.15: new USB bus registered, assigned bus number 40 usb usb40: We don't know the algorithms for LPM for this host, disabling LPM. usb usb40: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.07 usb usb40: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb40: Product: USB/IP Virtual Host Controller usb usb40: Manufacturer: Linux 5.7.0-rc3-next-20200428-syzkaller vhci_hcd usb usb40: SerialNumber: vhci_hcd.15 hub 40-0:1.0: USB hub found hub 40-0:1.0: 8 ports detected usbcore: registered new device driver usbip-host i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 i8042: Warning: Keylock active serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mousedev: PS/2 mouse device common for all mice rtc_cmos 00:00: RTC can wake from S4 rtc_cmos 00:00: registered as rtc0 rtc_cmos 00:00: alarms up to one day, 114 bytes nvram i2c /dev entries driver piix4_smbus 0000:00:01.3: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr usbcore: registered new interface driver RobotFuzz Open Source InterFace, OSIF usbcore: registered new interface driver i2c-tiny-usb IR NEC protocol handler initialized IR RC5(x/sz) protocol handler initialized IR RC6 protocol handler initialized IR JVC protocol handler initialized IR Sony protocol handler initialized IR SANYO protocol handler initialized IR Sharp protocol handler initialized IR MCE Keyboard/mouse protocol handler initialized IR XMP protocol handler initialized usbcore: registered new interface driver uvcvideo USB Video Class driver (1.1.1) gspca_main: v2.14.0 registered vivid-000: using single planar format API vivid-000: CEC adapter cec0 registered for HDMI input 0 vivid-000: V4L2 capture device registered as video3 vivid-000: CEC adapter cec1 registered for HDMI output 0 vivid-000: V4L2 output device registered as video4 vivid-000: V4L2 capture device registered as vbi0, supports raw and sliced VBI vivid-000: V4L2 output device registered as vbi1, supports raw and sliced VBI vivid-000: V4L2 capture device registered as swradio0 vivid-000: V4L2 receiver device registered as radio0 vivid-000: V4L2 transmitter device registered as radio1 vivid-000: V4L2 metadata capture device registered as video5 vivid-000: V4L2 metadata output device registered as video6 vivid-000: V4L2 touch capture device registered as v4l-touch0 vivid-001: using multiplanar format API vivid-001: CEC adapter cec2 registered for HDMI input 0 vivid-001: V4L2 capture device registered as video7 vivid-001: CEC adapter cec3 registered for HDMI output 0 vivid-001: V4L2 output device registered as video8 vivid-001: V4L2 capture device registered as vbi2, supports raw and sliced VBI vivid-001: V4L2 output device registered as vbi3, supports raw and sliced VBI vivid-001: V4L2 capture device registered as swradio1 vivid-001: V4L2 receiver device registered as radio2 vivid-001: V4L2 transmitter device registered as radio3 vivid-001: V4L2 metadata capture device registered as video9 vivid-001: V4L2 metadata output device registered as video10 vivid-001: V4L2 touch capture device registered as v4l-touch1 vivid-002: using single planar format API vivid-002: CEC adapter cec4 registered for HDMI input 0 vivid-002: V4L2 capture device registered as video11 vivid-002: CEC adapter cec5 registered for HDMI output 0 vivid-002: V4L2 output device registered as video12 vivid-002: V4L2 capture device registered as vbi4, supports raw and sliced VBI vivid-002: V4L2 output device registered as vbi5, supports raw and sliced VBI vivid-002: V4L2 capture device registered as swradio2 vivid-002: V4L2 receiver device registered as radio4 vivid-002: V4L2 transmitter device registered as radio5 vivid-002: V4L2 metadata capture device registered as video13 vivid-002: V4L2 metadata output device registered as video14 vivid-002: V4L2 touch capture device registered as v4l-touch2 vivid-003: using multiplanar format API vivid-003: CEC adapter cec6 registered for HDMI input 0 vivid-003: V4L2 capture device registered as video15 vivid-003: CEC adapter cec7 registered for HDMI output 0 vivid-003: V4L2 output device registered as video16 vivid-003: V4L2 capture device registered as vbi6, supports raw and sliced VBI vivid-003: V4L2 output device registered as vbi7, supports raw and sliced VBI vivid-003: V4L2 capture device registered as swradio3 vivid-003: V4L2 receiver device registered as radio6 vivid-003: V4L2 transmitter device registered as radio7 vivid-003: V4L2 metadata capture device registered as video17 vivid-003: V4L2 metadata output device registered as video18 vivid-003: V4L2 touch capture device registered as v4l-touch3 vivid-004: using single planar format API vivid-004: CEC adapter cec8 registered for HDMI input 0 vivid-004: V4L2 capture device registered as video19 vivid-004: CEC adapter cec9 registered for HDMI output 0 vivid-004: V4L2 output device registered as video20 vivid-004: V4L2 capture device registered as vbi8, supports raw and sliced VBI vivid-004: V4L2 output device registered as vbi9, supports raw and sliced VBI vivid-004: V4L2 capture device registered as swradio4 vivid-004: V4L2 receiver device registered as radio8 vivid-004: V4L2 transmitter device registered as radio9 vivid-004: V4L2 metadata capture device registered as video21 vivid-004: V4L2 metadata output device registered as video22 vivid-004: V4L2 touch capture device registered as v4l-touch4 vivid-005: using multiplanar format API vivid-005: CEC adapter cec10 registered for HDMI input 0 vivid-005: V4L2 capture device registered as video23 vivid-005: CEC adapter cec11 registered for HDMI output 0 vivid-005: V4L2 output device registered as video24 vivid-005: V4L2 capture device registered as vbi10, supports raw and sliced VBI vivid-005: V4L2 output device registered as vbi11, supports raw and sliced VBI vivid-005: V4L2 capture device registered as swradio5 vivid-005: V4L2 receiver device registered as radio10 vivid-005: V4L2 transmitter device registered as radio11 vivid-005: V4L2 metadata capture device registered as video25 vivid-005: V4L2 metadata output device registered as video26 vivid-005: V4L2 touch capture device registered as v4l-touch5 vivid-006: using single planar format API vivid-006: CEC adapter cec12 registered for HDMI input 0 vivid-006: V4L2 capture device registered as video27 vivid-006: CEC adapter cec13 registered for HDMI output 0 vivid-006: V4L2 output device registered as video28 vivid-006: V4L2 capture device registered as vbi12, supports raw and sliced VBI vivid-006: V4L2 output device registered as vbi13, supports raw and sliced VBI vivid-006: V4L2 capture device registered as swradio6 vivid-006: V4L2 receiver device registered as radio12 vivid-006: V4L2 transmitter device registered as radio13 vivid-006: V4L2 metadata capture device registered as video29 vivid-006: V4L2 metadata output device registered as video30 vivid-006: V4L2 touch capture device registered as v4l-touch6 vivid-007: using multiplanar format API vivid-007: CEC adapter cec14 registered for HDMI input 0 vivid-007: V4L2 capture device registered as video31 vivid-007: CEC adapter cec15 registered for HDMI output 0 vivid-007: V4L2 output device registered as video32 vivid-007: V4L2 capture device registered as vbi14, supports raw and sliced VBI vivid-007: V4L2 output device registered as vbi15, supports raw and sliced VBI vivid-007: V4L2 capture device registered as swradio7 vivid-007: V4L2 receiver device registered as radio14 vivid-007: V4L2 transmitter device registered as radio15 vivid-007: V4L2 metadata capture device registered as video33 vivid-007: V4L2 metadata output device registered as video34 vivid-007: V4L2 touch capture device registered as v4l-touch7 vivid-008: using single planar format API vivid-008: CEC adapter cec16 registered for HDMI input 0 vivid-008: V4L2 capture device registered as video35 vivid-008: CEC adapter cec17 registered for HDMI output 0 vivid-008: V4L2 output device registered as video36 vivid-008: V4L2 capture device registered as vbi16, supports raw and sliced VBI vivid-008: V4L2 output device registered as vbi17, supports raw and sliced VBI vivid-008: V4L2 capture device registered as swradio8 vivid-008: V4L2 receiver device registered as radio16 vivid-008: V4L2 transmitter device registered as radio17 vivid-008: V4L2 metadata capture device registered as video37 vivid-008: V4L2 metadata output device registered as video38 vivid-008: V4L2 touch capture device registered as v4l-touch8 vivid-009: using multiplanar format API vivid-009: CEC adapter cec18 registered for HDMI input 0 vivid-009: V4L2 capture device registered as video39 vivid-009: CEC adapter cec19 registered for HDMI output 0 vivid-009: V4L2 output device registered as video40 vivid-009: V4L2 capture device registered as vbi18, supports raw and sliced VBI vivid-009: V4L2 output device registered as vbi19, supports raw and sliced VBI vivid-009: V4L2 capture device registered as swradio9 vivid-009: V4L2 receiver device registered as radio18 vivid-009: V4L2 transmitter device registered as radio19 vivid-009: V4L2 metadata capture device registered as video41 vivid-009: V4L2 metadata output device registered as video42 vivid-009: V4L2 touch capture device registered as v4l-touch9 vivid-010: using single planar format API vivid-010: CEC adapter cec20 registered for HDMI input 0 vivid-010: V4L2 capture device registered as video43 vivid-010: CEC adapter cec21 registered for HDMI output 0 vivid-010: V4L2 output device registered as video44 vivid-010: V4L2 capture device registered as vbi20, supports raw and sliced VBI vivid-010: V4L2 output device registered as vbi21, supports raw and sliced VBI vivid-010: V4L2 capture device registered as swradio10 vivid-010: V4L2 receiver device registered as radio20 vivid-010: V4L2 transmitter device registered as radio21 vivid-010: V4L2 metadata capture device registered as video45 vivid-010: V4L2 metadata output device registered as video46 vivid-010: V4L2 touch capture device registered as v4l-touch10 vivid-011: using multiplanar format API vivid-011: CEC adapter cec22 registered for HDMI input 0 vivid-011: V4L2 capture device registered as video47 vivid-011: CEC adapter cec23 registered for HDMI output 0 vivid-011: V4L2 output device registered as video48 vivid-011: V4L2 capture device registered as vbi22, supports raw and sliced VBI vivid-011: V4L2 output device registered as vbi23, supports raw and sliced VBI vivid-011: V4L2 capture device registered as swradio11 vivid-011: V4L2 receiver device registered as radio22 vivid-011: V4L2 transmitter device registered as radio23 vivid-011: V4L2 metadata capture device registered as video49 vivid-011: V4L2 metadata output device registered as video50 vivid-011: V4L2 touch capture device registered as v4l-touch11 vivid-012: using single planar format API vivid-012: CEC adapter cec24 registered for HDMI input 0 vivid-012: V4L2 capture device registered as video51 vivid-012: CEC adapter cec25 registered for HDMI output 0 vivid-012: V4L2 output device registered as video52 vivid-012: V4L2 capture device registered as vbi24, supports raw and sliced VBI vivid-012: V4L2 output device registered as vbi25, supports raw and sliced VBI vivid-012: V4L2 capture device registered as swradio12 vivid-012: V4L2 receiver device registered as radio24 vivid-012: V4L2 transmitter device registered as radio25 vivid-012: V4L2 metadata capture device registered as video53 vivid-012: V4L2 metadata output device registered as video54 vivid-012: V4L2 touch capture device registered as v4l-touch12 vivid-013: using multiplanar format API vivid-013: CEC adapter cec26 registered for HDMI input 0 vivid-013: V4L2 capture device registered as video55 vivid-013: CEC adapter cec27 registered for HDMI output 0 vivid-013: V4L2 output device registered as video56 vivid-013: V4L2 capture device registered as vbi26, supports raw and sliced VBI vivid-013: V4L2 output device registered as vbi27, supports raw and sliced VBI vivid-013: V4L2 capture device registered as swradio13 vivid-013: V4L2 receiver device registered as radio26 vivid-013: V4L2 transmitter device registered as radio27 vivid-013: V4L2 metadata capture device registered as video57 vivid-013: V4L2 metadata output device registered as video58 vivid-013: V4L2 touch capture device registered as v4l-touch13 vivid-014: using single planar format API vivid-014: CEC adapter cec28 registered for HDMI input 0 vivid-014: V4L2 capture device registered as video59 vivid-014: CEC adapter cec29 registered for HDMI output 0 vivid-014: V4L2 output device registered as video60 vivid-014: V4L2 capture device registered as vbi28, supports raw and sliced VBI vivid-014: V4L2 output device registered as vbi29, supports raw and sliced VBI vivid-014: V4L2 capture device registered as swradio14 vivid-014: V4L2 receiver device registered as radio28 vivid-014: V4L2 transmitter device registered as radio29 vivid-014: V4L2 metadata capture device registered as video61 vivid-014: V4L2 metadata output device registered as video62 vivid-014: V4L2 touch capture device registered as v4l-touch14 vivid-015: using multiplanar format API vivid-015: CEC adapter cec30 registered for HDMI input 0 vivid-015: V4L2 capture device registered as video63 vivid-015: CEC adapter cec31 registered for HDMI output 0 vivid-015: V4L2 output device registered as video64 vivid-015: V4L2 capture device registered as vbi30, supports raw and sliced VBI vivid-015: V4L2 output device registered as vbi31, supports raw and sliced VBI vivid-015: V4L2 capture device registered as swradio15 vivid-015: V4L2 receiver device registered as radio30 vivid-015: V4L2 transmitter device registered as radio31 vivid-015: V4L2 metadata capture device registered as video65 vivid-015: V4L2 metadata output device registered as video66 vivid-015: V4L2 touch capture device registered as v4l-touch15 vim2m vim2m.0: Device registered as /dev/video67 vicodec vicodec.0: Device 'stateful-encoder' registered as /dev/video68 vicodec vicodec.0: Device 'stateful-decoder' registered as /dev/video69 vicodec vicodec.0: Device 'stateless-decoder' registered as /dev/video70 iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 iTCO_vendor_support: vendor-support=0 device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.42.0-ioctl (2020-02-27) initialised: dm-devel@redhat.com device-mapper: multipath round-robin: version 1.2.0 loaded device-mapper: multipath queue-length: version 0.2.0 loaded device-mapper: multipath service-time: version 0.3.0 loaded device-mapper: raid: Loading target version 1.15.1 Bluetooth: HCI UART driver ver 2.3 Bluetooth: HCI UART protocol H4 registered Bluetooth: HCI UART protocol BCSP registered Bluetooth: HCI UART protocol LL registered Bluetooth: HCI UART protocol Three-wire (H5) registered Bluetooth: HCI UART protocol QCA registered Bluetooth: HCI UART protocol AG6XX registered Bluetooth: HCI UART protocol Marvell registered usbcore: registered new interface driver bfusb usbcore: registered new interface driver btusb CAPI 2.0 started up with major 68 (middleware) Modular ISDN core version 1.1.29 NET: Registered protocol family 34 DSP module 2.0 mISDN_dsp: DSP clocks every 80 samples. This equals 1 jiffies. mISDN: Layer-1-over-IP driver Rev. 2.00 0 virtual devices registered intel_pstate: CPU model not supported usnic_verbs: Cisco VIC (USNIC) Verbs Driver v1.0.3 (December 19, 2013) usnic_verbs:usnic_uiom_init:563: IOMMU required but not present or enabled. USNIC QPs will not function w/o enabling IOMMU usnic_verbs:usnic_ib_init:667: Unable to initialize umem with err -1 iscsi: registered transport (iser) SoftiWARP attached Driver 'framebuffer' was unable to register with bus_type 'coreboot' because the bus was not initialized. Driver 'memconsole' was unable to register with bus_type 'coreboot' because the bus was not initialized. Driver 'vpd' was unable to register with bus_type 'coreboot' because the bus was not initialized. hid: raw HID events driver (C) Jiri Kosina usbcore: registered new interface driver usbhid usbhid: USB HID core driver ashmem: initialized usbcore: registered new interface driver snd-usb-audio drop_monitor: Initializing network drop monitor service NET: Registered protocol family 26 GACT probability on Mirror/redirect action on Simple TC action Loaded netem: version 1.3 u32 classifier Performance counters on input device check on Actions configured nf_conntrack_irc: failed to register helpers nf_conntrack_sane: failed to register helpers nf_conntrack_sip: failed to register helpers xt_time: kernel timezone is -0000 IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP) IPVS: Connection hash table configured (size=4096, memory=64Kbytes) IPVS: ipvs loaded. IPVS: [rr] scheduler registered. IPVS: [wrr] scheduler registered. IPVS: [lc] scheduler registered. IPVS: [wlc] scheduler registered. IPVS: [fo] scheduler registered. IPVS: [ovf] scheduler registered. IPVS: [lblc] scheduler registered. IPVS: [lblcr] scheduler registered. IPVS: [dh] scheduler registered. IPVS: [sh] scheduler registered. IPVS: [mh] scheduler registered. IPVS: [sed] scheduler registered. IPVS: [nq] scheduler registered. IPVS: ftp: loaded support on port[0] = 21 IPVS: [sip] pe registered. ipip: IPv4 and MPLS over IPv4 tunneling driver gre: GRE over IPv4 demultiplexor driver ip_gre: GRE over IPv4 tunneling driver IPv4 over IPsec tunneling driver ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully Initializing XFRM netlink socket IPsec XFRM device driver NET: Registered protocol family 10 ============================= WARNING: suspicious RCU usage 5.7.0-rc3-next-20200428-syzkaller #0 Not tainted ----------------------------- net/ipv6/ip6mr.c:124 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by swapper/0/1: #0: ffffffff8a5a6330 (pernet_ops_rwsem){+.+.}-{3:3}, at: register_pernet_subsys+0x16/0x40 net/core/net_namespace.c:1257 stack backtrace: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc3-next-20200428-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 ip6mr_get_table+0x153/0x180 net/ipv6/ip6mr.c:124 ip6mr_new_table+0x1b/0x70 net/ipv6/ip6mr.c:382 ip6mr_rules_init net/ipv6/ip6mr.c:236 [inline] ip6mr_net_init+0x133/0x3f0 net/ipv6/ip6mr.c:1310 ops_init+0xaf/0x420 net/core/net_namespace.c:151 __register_pernet_operations net/core/net_namespace.c:1140 [inline] register_pernet_operations+0x346/0x840 net/core/net_namespace.c:1217 register_pernet_subsys+0x25/0x40 net/core/net_namespace.c:1258 ip6_mr_init+0x49/0x152 net/ipv6/ip6mr.c:1363 inet6_init+0x1d7/0x6dc net/ipv6/af_inet6.c:1032 do_one_initcall+0x10a/0x7d0 init/main.c:1159 do_initcall_level init/main.c:1232 [inline] do_initcalls init/main.c:1248 [inline] do_basic_setup init/main.c:1268 [inline] kernel_init_freeable+0x501/0x5ae init/main.c:1454 kernel_init+0xd/0x1bb init/main.c:1359 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Segment Routing with IPv6 mip6: Mobile IPv6 sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver ip6_gre: GRE over IPv6 tunneling driver NET: Registered protocol family 17 NET: Registered protocol family 15 Bridge firewalling registered NET: Registered protocol family 9 X25: Linux Version 0.2 NET: Registered protocol family 6 NET: Registered protocol family 11 NET: Registered protocol family 3 can: controller area network core (rev 20170425 abi 9) NET: Registered protocol family 29 can: raw protocol (rev 20170425) can: broadcast manager protocol (rev 20170425 t) can: netlink gateway (rev 20190810) max_hops=1 can: SAE J1939 Bluetooth: RFCOMM TTY layer initialized Bluetooth: RFCOMM socket layer initialized Bluetooth: RFCOMM ver 1.11 Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: BNEP filters: protocol multicast Bluetooth: BNEP socket layer initialized Bluetooth: CMTP (CAPI Emulation) ver 1.0 Bluetooth: CMTP socket layer initialized Bluetooth: HIDP (Human Interface Emulation) ver 1.2 Bluetooth: HIDP socket layer initialized RPC: Registered rdma transport module. RPC: Registered rdma backchannel transport module. NET: Registered protocol family 33 Key type rxrpc registered Key type rxrpc_s registered NET: Registered protocol family 41 lec:lane_module_init: lec.c: initialized mpoa:atm_mpoa_init: mpc.c: initialized l2tp_core: L2TP core driver, V2.0 l2tp_ppp: PPPoL2TP kernel driver, V2.0 l2tp_ip: L2TP IP encapsulation support (L2TPv3) l2tp_netlink: L2TP netlink interface l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) NET: Registered protocol family 35 8021q: 802.1Q VLAN Support v1.8 DCCP: Activated CCID 2 (TCP-like) DCCP: Activated CCID 3 (TCP-Friendly Rate Control) sctp: Hash tables configured (bind 32/56) NET: Registered protocol family 21 Registered RDS/infiniband transport Registered RDS/tcp transport tipc: Activated (version 2.0.0) NET: Registered protocol family 30 tipc: Started in single node mode NET: Registered protocol family 43 9pnet: Installing 9P2000 support NET: Registered protocol family 37 NET: Registered protocol family 36 Key type dns_resolver registered Key type ceph registered libceph: loaded (mon/osd proto 15/24) batman_adv: B.A.T.M.A.N. advanced 2020.2 (compatibility version 15) loaded openvswitch: Open vSwitch switching datapath NET: Registered protocol family 40 mpls_gso: MPLS GSO support IPI shorthand broadcast: enabled AVX2 version of gcm_enc/dec engaged. AES CTR mode by8 optimization enabled sched_clock: Marking stable (17444721508, 31811971)->(17487974339, -11440860) registered taskstats version 1 Loading compiled-in X.509 certificates Loaded X.509 cert 'Build time autogenerated kernel key: 8b22f477d966bfa6cf9a482acbda6ca1892a4acc' zswap: loaded using pool lzo/zbud debug_vm_pgtable: debug_vm_pgtable: Validating architecture page table helpers Key type ._fscrypt registered Key type .fscrypt registered Key type fscrypt-provisioning registered kAFS: Red Hat AFS client v0.1 registering. FS-Cache: Netfs 'afs' registered for caching Btrfs loaded, crc32c=crc32c-intel Key type big_key registered Key type encrypted registered AppArmor: AppArmor sha1 policy hashing enabled ima: No TPM chip found, activating TPM-bypass! ima: Allocated hash algorithm: sha256 ima: No architecture policies found evm: Initialising EVM extended attributes: evm: security.selinux evm: security.SMACK64 evm: security.SMACK64EXEC evm: security.SMACK64TRANSMUTE evm: security.SMACK64MMAP evm: security.apparmor evm: security.ima evm: security.capability evm: HMAC attrs: 0x1 PM: Magic number: 0:864:473 printk: console [netcon0] enabled netconsole: network logging started gtp: GTP module loaded (pdp ctx size 104 bytes) rdma_rxe: loaded cfg80211: Loading compiled-in X.509 certificates for regulatory database cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' ALSA device list: #0: Dummy 1 #1: Loopback 1 #2: Virtual MIDI Card 1 md: Waiting for all devices to be available before autodetect md: If you don't use raid, use raid=noautodetect md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. EXT4-fs (sda1): mounted filesystem without journal. Opts: (null) VFS: Mounted root (ext4 filesystem) readonly on device 8:1. devtmpfs: mounted Freeing unused kernel image (initmem) memory: 2776K Kernel memory protection disabled. Run /sbin/init as init process random: systemd: uninitialized urandom read (16 bytes read) random: systemd: uninitialized urandom read (16 bytes read) random: systemd: uninitialized urandom read (16 bytes read) systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN) systemd[1]: Detected virtualization kvm. systemd[1]: Detected architecture x86-64. systemd[1]: Set hostname to . systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. systemd[1]: Reached target Remote File Systems. systemd[1]: Listening on Syslog Socket. systemd[1]: Listening on Journal Socket. systemd[1]: Listening on udev Kernel Socket. ============================= WARNING: suspicious RCU usage 5.7.0-rc3-next-20200428-syzkaller #0 Not tainted ----------------------------- security/integrity/evm/evm_main.c:231 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by systemd/1: #0: ffff888098dfa450 (sb_writers#8){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1659 [inline] #0: ffff888098dfa450 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354 #1: ffff8880988e8310 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline] #1: ffff8880988e8310 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_setxattr+0x92/0xf0 fs/xattr.c:219 stack backtrace: CPU: 0 PID: 1 Comm: systemd Not tainted 5.7.0-rc3-next-20200428-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 evm_protected_xattr+0x1c2/0x210 security/integrity/evm/evm_main.c:231 evm_protect_xattr.isra.0+0xb6/0x3d0 security/integrity/evm/evm_main.c:318 evm_inode_setxattr+0xc4/0xf0 security/integrity/evm/evm_main.c:387 security_inode_setxattr+0x18f/0x200 security/security.c:1297 vfs_setxattr+0xa7/0xf0 fs/xattr.c:220 setxattr+0x23d/0x330 fs/xattr.c:451 path_setxattr+0x170/0x190 fs/xattr.c:470 __do_sys_setxattr fs/xattr.c:485 [inline] __se_sys_setxattr fs/xattr.c:481 [inline] __x64_sys_setxattr+0xc0/0x160 fs/xattr.c:481 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7fe46005e67a Code: 48 8b 0d 21 18 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 bc 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ee 17 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fffef423568 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe46005e67a RDX: 00007fffef4235e0 RSI: 0000556ea53ddf9b RDI: 0000556ea6766760 RBP: 0000556ea53ddf9b R08: 0000000000000000 R09: 0000000000000030 R10: 0000000000000020 R11: 0000000000000246 R12: 00007fffef4235e0 R13: 0000000000000020 R14: 0000000000000000 R15: 0000556ea6751700 ============================= WARNING: suspicious RCU usage 5.7.0-rc3-next-20200428-syzkaller #0 Not tainted ----------------------------- security/device_cgroup.c:357 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 4 locks held by systemd/1: #0: ffff8880984f6450 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2910 [inline] #0: ffff8880984f6450 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x4cf/0x5d0 fs/read_write.c:558 #1: ffff8880a93c4888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write+0x1b8/0x490 fs/kernfs/file.c:306 #2: ffff888096d1f4d0 (kn->active#47){++++}-{0:0}, at: kernfs_fop_write+0x1db/0x490 fs/kernfs/file.c:307 #3: ffffffff89e5de48 (devcgroup_mutex){+.+.}-{3:3}, at: devcgroup_access_write+0x93/0x12a7 security/device_cgroup.c:762 stack backtrace: CPU: 1 PID: 1 Comm: systemd Not tainted 5.7.0-rc3-next-20200428-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 match_exception_partial+0x2ee/0x340 security/device_cgroup.c:357 verify_new_ex+0x176/0x3a0 security/device_cgroup.c:414 parent_has_perm security/device_cgroup.c:456 [inline] devcgroup_update_access security/device_cgroup.c:731 [inline] devcgroup_access_write+0xaf5/0x12a7 security/device_cgroup.c:763 cgroup_file_write+0x20d/0x710 kernel/cgroup/cgroup.c:3704 kernfs_fop_write+0x268/0x490 fs/kernfs/file.c:315 __vfs_write+0x76/0x100 fs/read_write.c:495 vfs_write+0x268/0x5d0 fs/read_write.c:559 ksys_write+0x12d/0x250 fs/read_write.c:612 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7fe460052970 Code: 73 01 c3 48 8b 0d 28 d5 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 99 2d 2c 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 7e 9b 01 00 48 89 04 24 RSP: 002b:00007fffef423128 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fe460052970 RDX: 000000000000000a RSI: 0000556ea6787c30 RDI: 0000000000000027 RBP: 0000556ea6787c30 R08: 0000556ea67af200 R09: 00007fe461a88500 R10: 0000000000000073 R11: 0000000000000246 R12: 000000000000000a R13: 0000000000000001 R14: 0000556ea67af120 R15: 000000000000000a --- This bug is generated by a bot. 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