On Tue, Apr 28, 2020, 10:47 syzbot <syzbot+1519f497f2f9f08183c6@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: 0fd02a5d Add linux-next specific files for 20200428 > git tree: linux-next +linux-next for boot breakage > 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@xxxxxxxxxxxxxxxxxxxxxxxxx > > 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 <giometti@xxxxxxxx> > 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@xxxxxxxxxxxx). > 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 <Jason@xxxxxxxxx>. All Rights Reserved. > eql: Equalizer2002: Simon Janes (simon@xxxxxxx) and David S. Miller (davem@xxxxxxxxxx) > 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@xxxxxxxxx. > 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@xxxxxxxxxx > 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 <syzkaller>. > 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. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000df9a9805a455e07b%40google.com.
