[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.217' (ECDSA) to the list of known hosts. syzkaller login: [ 55.524057][ T6802] IPVS: ftp: loaded support on port[0] = 21 [ 55.615815][ T6802] chnl_net:caif_netlink_parms(): no params data found [ 55.668827][ T6802] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.677177][ T6802] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.685543][ T6802] device bridge_slave_0 entered promiscuous mode [ 55.695051][ T6802] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.704000][ T6802] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.712188][ T6802] device bridge_slave_1 entered promiscuous mode [ 55.732868][ T6802] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.744007][ T6802] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.767160][ T6802] team0: Port device team_slave_0 added [ 55.774869][ T6802] team0: Port device team_slave_1 added [ 55.792648][ T6802] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.799728][ T6802] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 55.825839][ T6802] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.838304][ T6802] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.846165][ T6802] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 55.872132][ T6802] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.937960][ T6802] device hsr_slave_0 entered promiscuous mode [ 55.994596][ T6802] device hsr_slave_1 entered promiscuous mode [ 56.123269][ T6802] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.197916][ T6802] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.266463][ T6802] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.306686][ T6802] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.372205][ T6802] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.379464][ T6802] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.387478][ T6802] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.394734][ T6802] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.443568][ T6802] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.458137][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.468561][ T2475] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.477296][ T2475] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.486459][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.499955][ T6802] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.511554][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.520630][ T2516] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.527766][ T2516] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.539700][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.549042][ T2475] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.556198][ T2475] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.575913][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.596615][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.605558][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.614549][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.623148][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.636565][ T6802] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.660085][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.668610][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.682493][ T6802] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.706627][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.716591][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.735884][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.745545][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.757322][ T6802] device veth0_vlan entered promiscuous mode [ 56.765555][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.773377][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.789103][ T6802] device veth1_vlan entered promiscuous mode [ 56.811607][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.820573][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.829439][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.838786][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.850908][ T6802] device veth0_macvtap entered promiscuous mode [ 56.863085][ T6802] device veth1_macvtap entered promiscuous mode [ 56.882256][ T6802] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.891008][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.899423][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.907720][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.918147][ T2475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.930928][ T6802] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.939902][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.949465][ T2485] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 57.433934][ T2516] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 57.693849][ T2516] usb 1-1: Using ep0 maxpacket: 16 [ 57.934122][ T2516] usb 1-1: New USB device found, idVendor=1c40, idProduct=0534, bcdDevice=63.ce [ 57.944075][ T2516] usb 1-1: New USB device strings: Mfr=8, Product=0, SerialNumber=3 [ 57.952687][ T2516] usb 1-1: Manufacturer: syz [ 57.960026][ T2516] usb 1-1: SerialNumber: syz [ 57.970135][ T2516] usb 1-1: config 0 descriptor?? [ 58.016210][ T2516] i2c-tiny-usb 1-1:0.0: version 63.ce found at bus 001 address 002 [ 58.444861][ T2516] (null): failure reading functionality [ 58.464949][ T2516] i2c i2c-0: failure reading functionality [ 58.483212][ T2516] i2c i2c-0: connected i2c-tiny-usb device [ 58.497722][ T2516] usb 1-1: USB disconnect, device number 2 [ 58.508945][ T2516] ================================================================== [ 58.517233][ T2516] BUG: KASAN: use-after-free in kobject_put+0x296/0x2f0 [ 58.524206][ T2516] Read of size 1 at addr ffff8880a8ce3054 by task kworker/0:7/2516 [ 58.532095][ T2516] [ 58.534434][ T2516] CPU: 0 PID: 2516 Comm: kworker/0:7 Not tainted 5.7.0-rc6-next-20200522-syzkaller #0 [ 58.543975][ T2516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.554063][ T2516] Workqueue: usb_hub_wq hub_event [ 58.559083][ T2516] Call Trace: [ 58.562370][ T2516] dump_stack+0x18f/0x20d [ 58.566713][ T2516] ? kobject_put+0x296/0x2f0 [ 58.571311][ T2516] ? kobject_put+0x296/0x2f0 [ 58.575915][ T2516] print_address_description.constprop.0.cold+0xd3/0x413 [ 58.582954][ T2516] ? kfree+0x1eb/0x2b0 [ 58.587041][ T2516] ? vprintk_func+0x97/0x1a6 [ 58.591646][ T2516] ? kobject_put+0x296/0x2f0 [ 58.596248][ T2516] kasan_report.cold+0x1f/0x37 [ 58.601047][ T2516] ? kobject_put+0x1d0/0x2f0 [ 58.605645][ T2516] ? kobject_put+0x296/0x2f0 [ 58.610238][ T2516] kobject_put+0x296/0x2f0 [ 58.614654][ T2516] ? cdev_device_del+0x69/0x80 [ 58.619419][ T2516] put_device+0x1b/0x30 [ 58.623574][ T2516] i2cdev_detach_adapter.part.0+0x53/0x70 [ 58.629301][ T2516] i2cdev_notifier_call+0xad/0xc0 [ 58.634333][ T2516] notifier_call_chain+0xc0/0x230 [ 58.639363][ T2516] blocking_notifier_call_chain+0x85/0xa0 [ 58.645085][ T2516] device_del+0x17e/0xd30 [ 58.649416][ T2516] ? __pm_runtime_disable+0x148/0x3d0 [ 58.654785][ T2516] ? device_link_add_missing_supplier_links+0x370/0x370 [ 58.661715][ T2516] ? lockdep_init_map_waits+0x26a/0x890 [ 58.667262][ T2516] ? lockdep_init_map_waits+0x26a/0x890 [ 58.672826][ T2516] ? __raw_spin_lock_init+0x34/0x100 [ 58.678120][ T2516] device_unregister+0x11/0x30 [ 58.682883][ T2516] i2c_del_adapter+0x42b/0x590 [ 58.687646][ T2516] ? usb_disable_interface+0x7b/0x1a0 [ 58.693045][ T2516] i2c_tiny_usb_disconnect+0x3a/0xb0 [ 58.698328][ T2516] usb_unbind_interface+0x1bd/0x8a0 [ 58.703534][ T2516] ? __pm_runtime_idle+0xd1/0x320 [ 58.708558][ T2516] ? usb_autoresume_device+0x60/0x60 [ 58.713867][ T2516] device_release_driver_internal+0x432/0x500 [ 58.720094][ T2516] bus_remove_device+0x2dc/0x4a0 [ 58.725034][ T2516] device_del+0x481/0xd30 [ 58.729365][ T2516] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.735346][ T2516] ? device_link_add_missing_supplier_links+0x370/0x370 [ 58.742267][ T2516] ? remove_intf_ep_devs+0x13f/0x1d0 [ 58.747543][ T2516] usb_disable_device+0x211/0x690 [ 58.752552][ T2516] usb_disconnect+0x284/0x8d0 [ 58.757252][ T2516] hub_event+0x17ca/0x38f0 [ 58.761742][ T2516] ? hub_port_debounce+0x260/0x260 [ 58.766953][ T2516] ? usermodehelper_read_trylock+0xf0/0x2d0 [ 58.772835][ T2516] ? debug_smp_processor_id+0x2f/0x185 [ 58.778279][ T2516] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.783804][ T2516] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.789786][ T2516] process_one_work+0x965/0x16a0 [ 58.794724][ T2516] ? lock_release+0x800/0x800 [ 58.799385][ T2516] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.804743][ T2516] ? rwlock_bug.part.0+0x90/0x90 [ 58.809721][ T2516] worker_thread+0x7ab/0xe20 [ 58.814336][ T2516] ? process_one_work+0x16a0/0x16a0 [ 58.819530][ T2516] kthread+0x3b5/0x4a0 [ 58.823586][ T2516] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.829288][ T2516] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.835001][ T2516] ret_from_fork+0x24/0x30 [ 58.839924][ T2516] [ 58.842231][ T2516] Allocated by task 2516: [ 58.846543][ T2516] save_stack+0x1b/0x40 [ 58.850674][ T2516] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 58.856283][ T2516] kmem_cache_alloc_trace+0x153/0x7d0 [ 58.861632][ T2516] i2cdev_attach_adapter.part.0+0x9a/0x3f0 [ 58.867437][ T2516] i2cdev_notifier_call+0x9b/0xc0 [ 58.872438][ T2516] notifier_call_chain+0xc0/0x230 [ 58.877456][ T2516] blocking_notifier_call_chain+0x85/0xa0 [ 58.883170][ T2516] device_add+0xa6e/0x1900 [ 58.887567][ T2516] i2c_register_adapter+0x30d/0xb00 [ 58.892740][ T2516] i2c_add_adapter+0xba/0x100 [ 58.897393][ T2516] i2c_tiny_usb_probe+0x3a8/0x528 [ 58.902409][ T2516] usb_probe_interface+0x305/0x7a0 [ 58.907497][ T2516] really_probe+0x281/0x6d0 [ 58.911974][ T2516] driver_probe_device+0xfe/0x1d0 [ 58.916983][ T2516] __device_attach_driver+0x1c2/0x220 [ 58.922332][ T2516] bus_for_each_drv+0x162/0x1e0 [ 58.927180][ T2516] __device_attach+0x21a/0x360 [ 58.931927][ T2516] bus_probe_device+0x1e4/0x290 [ 58.936753][ T2516] device_add+0xaf1/0x1900 [ 58.941159][ T2516] usb_set_configuration+0xec5/0x1740 [ 58.946533][ T2516] usb_generic_driver_probe+0x9d/0xe0 [ 58.951909][ T2516] usb_probe_device+0xc6/0x1f0 [ 58.956673][ T2516] really_probe+0x281/0x6d0 [ 58.961203][ T2516] driver_probe_device+0xfe/0x1d0 [ 58.966231][ T2516] __device_attach_driver+0x1c2/0x220 [ 58.971613][ T2516] bus_for_each_drv+0x162/0x1e0 [ 58.976464][ T2516] __device_attach+0x21a/0x360 [ 58.981232][ T2516] bus_probe_device+0x1e4/0x290 [ 58.986170][ T2516] device_add+0xaf1/0x1900 [ 58.990597][ T2516] usb_new_device.cold+0x753/0x103d [ 58.995814][ T2516] hub_event+0x1eca/0x38f0 [ 59.000215][ T2516] process_one_work+0x965/0x16a0 [ 59.005132][ T2516] worker_thread+0x96/0xe20 [ 59.009629][ T2516] kthread+0x3b5/0x4a0 [ 59.013676][ T2516] ret_from_fork+0x24/0x30 [ 59.018064][ T2516] [ 59.020368][ T2516] Freed by task 2516: [ 59.024342][ T2516] save_stack+0x1b/0x40 [ 59.028492][ T2516] __kasan_slab_free+0xf7/0x140 [ 59.033384][ T2516] kfree+0x109/0x2b0 [ 59.037268][ T2516] device_release+0x71/0x200 [ 59.041850][ T2516] kobject_put+0x1c8/0x2f0 [ 59.046269][ T2516] cdev_device_del+0x69/0x80 [ 59.050837][ T2516] put_i2c_dev+0x160/0x1b0 [ 59.055235][ T2516] i2cdev_detach_adapter.part.0+0x53/0x70 [ 59.060931][ T2516] i2cdev_notifier_call+0xad/0xc0 [ 59.065948][ T2516] notifier_call_chain+0xc0/0x230 [ 59.070968][ T2516] blocking_notifier_call_chain+0x85/0xa0 [ 59.076682][ T2516] device_del+0x17e/0xd30 [ 59.081006][ T2516] device_unregister+0x11/0x30 [ 59.085753][ T2516] i2c_del_adapter+0x42b/0x590 [ 59.090503][ T2516] i2c_tiny_usb_disconnect+0x3a/0xb0 [ 59.095766][ T2516] usb_unbind_interface+0x1bd/0x8a0 [ 59.100939][ T2516] device_release_driver_internal+0x432/0x500 [ 59.107072][ T2516] bus_remove_device+0x2dc/0x4a0 [ 59.112077][ T2516] device_del+0x481/0xd30 [ 59.116414][ T2516] usb_disable_device+0x211/0x690 [ 59.121422][ T2516] usb_disconnect+0x284/0x8d0 [ 59.126112][ T2516] hub_event+0x17ca/0x38f0 [ 59.130595][ T2516] process_one_work+0x965/0x16a0 [ 59.135526][ T2516] worker_thread+0x7ab/0xe20 [ 59.140108][ T2516] kthread+0x3b5/0x4a0 [ 59.144165][ T2516] ret_from_fork+0x24/0x30 [ 59.148608][ T2516] [ 59.150923][ T2516] The buggy address belongs to the object at ffff8880a8ce3000 [ 59.150923][ T2516] which belongs to the cache kmalloc-2k of size 2048 [ 59.164986][ T2516] The buggy address is located 84 bytes inside of [ 59.164986][ T2516] 2048-byte region [ffff8880a8ce3000, ffff8880a8ce3800) [ 59.178248][ T2516] The buggy address belongs to the page: [ 59.183867][ T2516] page:ffffea0002a338c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 59.192962][ T2516] flags: 0xfffe0000000200(slab) [ 59.197811][ T2516] raw: 00fffe0000000200 ffffea000240c988 ffffea00027fd2c8 ffff8880aa000e00 [ 59.206463][ T2516] raw: 0000000000000000 ffff8880a8ce3000 0000000100000001 0000000000000000 [ 59.215052][ T2516] page dumped because: kasan: bad access detected [ 59.221486][ T2516] [ 59.223792][ T2516] Memory state around the buggy address: [ 59.229574][ T2516] ffff8880a8ce2f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 59.237614][ T2516] ffff8880a8ce2f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 59.245672][ T2516] >ffff8880a8ce3000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.253727][ T2516] ^ [ 59.260479][ T2516] ffff8880a8ce3080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.268518][ T2516] ffff8880a8ce3100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.276575][ T2516] ================================================================== [ 59.284613][ T2516] Disabling lock debugging due to kernel taint [ 59.343110][ T2516] Kernel panic - not syncing: panic_on_warn set ... [ 59.349717][ T2516] CPU: 0 PID: 2516 Comm: kworker/0:7 Tainted: G B 5.7.0-rc6-next-20200522-syzkaller #0 [ 59.360619][ T2516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.370661][ T2516] Workqueue: usb_hub_wq hub_event [ 59.375668][ T2516] Call Trace: [ 59.379006][ T2516] dump_stack+0x18f/0x20d [ 59.383340][ T2516] ? kobject_put+0x1d0/0x2f0 [ 59.387964][ T2516] panic+0x2e3/0x75c [ 59.391848][ T2516] ? __warn_printk+0xf3/0xf3 [ 59.396435][ T2516] ? preempt_schedule_common+0x5e/0xc0 [ 59.401882][ T2516] ? kobject_put+0x296/0x2f0 [ 59.406461][ T2516] ? kobject_put+0x296/0x2f0 [ 59.411032][ T2516] ? preempt_schedule_thunk+0x16/0x18 [ 59.416396][ T2516] ? trace_hardirqs_on+0x55/0x230 [ 59.421394][ T2516] ? kobject_put+0x296/0x2f0 [ 59.425957][ T2516] ? kobject_put+0x296/0x2f0 [ 59.430536][ T2516] end_report+0x4d/0x53 [ 59.434683][ T2516] kasan_report.cold+0xd/0x37 [ 59.439411][ T2516] ? kobject_put+0x1d0/0x2f0 [ 59.443987][ T2516] ? kobject_put+0x296/0x2f0 [ 59.448553][ T2516] kobject_put+0x296/0x2f0 [ 59.452946][ T2516] ? cdev_device_del+0x69/0x80 [ 59.457689][ T2516] put_device+0x1b/0x30 [ 59.461834][ T2516] i2cdev_detach_adapter.part.0+0x53/0x70 [ 59.467534][ T2516] i2cdev_notifier_call+0xad/0xc0 [ 59.472533][ T2516] notifier_call_chain+0xc0/0x230 [ 59.477538][ T2516] blocking_notifier_call_chain+0x85/0xa0 [ 59.483233][ T2516] device_del+0x17e/0xd30 [ 59.487540][ T2516] ? __pm_runtime_disable+0x148/0x3d0 [ 59.493019][ T2516] ? device_link_add_missing_supplier_links+0x370/0x370 [ 59.499947][ T2516] ? lockdep_init_map_waits+0x26a/0x890 [ 59.505475][ T2516] ? lockdep_init_map_waits+0x26a/0x890 [ 59.511026][ T2516] ? __raw_spin_lock_init+0x34/0x100 [ 59.516922][ T2516] device_unregister+0x11/0x30 [ 59.521678][ T2516] i2c_del_adapter+0x42b/0x590 [ 59.526419][ T2516] ? usb_disable_interface+0x7b/0x1a0 [ 59.531782][ T2516] i2c_tiny_usb_disconnect+0x3a/0xb0 [ 59.537063][ T2516] usb_unbind_interface+0x1bd/0x8a0 [ 59.542261][ T2516] ? __pm_runtime_idle+0xd1/0x320 [ 59.547269][ T2516] ? usb_autoresume_device+0x60/0x60 [ 59.552542][ T2516] device_release_driver_internal+0x432/0x500 [ 59.558584][ T2516] bus_remove_device+0x2dc/0x4a0 [ 59.563515][ T2516] device_del+0x481/0xd30 [ 59.567833][ T2516] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.573790][ T2516] ? device_link_add_missing_supplier_links+0x370/0x370 [ 59.580709][ T2516] ? remove_intf_ep_devs+0x13f/0x1d0 [ 59.585972][ T2516] usb_disable_device+0x211/0x690 [ 59.590992][ T2516] usb_disconnect+0x284/0x8d0 [ 59.595666][ T2516] hub_event+0x17ca/0x38f0 [ 59.600070][ T2516] ? hub_port_debounce+0x260/0x260 [ 59.605162][ T2516] ? usermodehelper_read_trylock+0xf0/0x2d0 [ 59.611047][ T2516] ? debug_smp_processor_id+0x2f/0x185 [ 59.616499][ T2516] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.622033][ T2516] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.628014][ T2516] process_one_work+0x965/0x16a0 [ 59.632941][ T2516] ? lock_release+0x800/0x800 [ 59.637666][ T2516] ? pwq_dec_nr_in_flight+0x310/0x310 [ 59.643031][ T2516] ? rwlock_bug.part.0+0x90/0x90 [ 59.647971][ T2516] worker_thread+0x7ab/0xe20 [ 59.652559][ T2516] ? process_one_work+0x16a0/0x16a0 [ 59.657735][ T2516] kthread+0x3b5/0x4a0 [ 59.661868][ T2516] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.667561][ T2516] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.673260][ T2516] ret_from_fork+0x24/0x30 [ 59.678876][ T2516] Kernel Offset: disabled [ 59.683196][ T2516] Rebooting in 86400 seconds..