[ 18.388422][ T3636] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.395377][ T3636] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.441889][ T302] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.448866][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller syzkaller login: [ 69.624164][ T25] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.68' (ECDSA) to the list of known hosts. executing program [ 290.222510][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 290.472385][ T7] usb 1-1: Using ep0 maxpacket: 32 [ 290.592437][ T7] usb 1-1: config 0 has an invalid interface number: 55 but max is 0 [ 290.594122][ T7] usb 1-1: config 0 has no interface number 0 [ 290.595359][ T7] usb 1-1: config 0 interface 55 altsetting 113 bulk endpoint 0x85 has invalid maxpacket 255 [ 290.597572][ T7] usb 1-1: config 0 interface 55 has no altsetting 0 [ 290.752526][ T7] usb 1-1: New USB device found, idVendor=12d8, idProduct=0001, bcdDevice=de.85 [ 290.754471][ T7] usb 1-1: New USB device strings: Mfr=1, Product=236, SerialNumber=2 [ 290.756180][ T7] usb 1-1: Product: syz [ 290.757037][ T7] usb 1-1: Manufacturer: syz [ 290.757971][ T7] usb 1-1: SerialNumber: syz [ 290.763119][ T7] usb 1-1: config 0 descriptor?? [ 290.783210][ T3985] raw-gadget.0 gadget: fail, usb_ep_enable returned -22 [ 291.004919][ T7] usb 1-1: USB disconnect, device number 2 executing program [ 291.372400][ T7] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 291.612400][ T7] usb 1-1: Using ep0 maxpacket: 32 [ 291.732426][ T7] usb 1-1: config 0 has an invalid interface number: 55 but max is 0 [ 291.734333][ T7] usb 1-1: config 0 has no interface number 0 [ 291.735646][ T7] usb 1-1: config 0 interface 55 altsetting 113 bulk endpoint 0x85 has invalid maxpacket 255 [ 291.737737][ T7] usb 1-1: config 0 interface 55 has no altsetting 0 [ 291.892466][ T7] usb 1-1: New USB device found, idVendor=12d8, idProduct=0001, bcdDevice=de.85 [ 291.894655][ T7] usb 1-1: New USB device strings: Mfr=1, Product=236, SerialNumber=2 [ 291.896540][ T7] usb 1-1: Product: syz [ 291.897438][ T7] usb 1-1: Manufacturer: syz [ 291.898327][ T7] usb 1-1: SerialNumber: syz [ 291.901958][ T7] usb 1-1: config 0 descriptor?? [ 291.922896][ T3988] raw-gadget.0 gadget: fail, usb_ep_enable returned -22 [ 292.144982][ T25] usb 1-1: USB disconnect, device number 3 executing program [ 292.552544][ T25] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 292.792442][ T25] usb 1-1: Using ep0 maxpacket: 32 [ 292.912451][ T25] usb 1-1: config 0 has an invalid interface number: 55 but max is 0 [ 292.914330][ T25] usb 1-1: config 0 has no interface number 0 [ 292.915686][ T25] usb 1-1: config 0 interface 55 altsetting 113 bulk endpoint 0x85 has invalid maxpacket 255 [ 292.917759][ T25] usb 1-1: config 0 interface 55 has no altsetting 0 [ 293.072467][ T25] usb 1-1: New USB device found, idVendor=12d8, idProduct=0001, bcdDevice=de.85 [ 293.074608][ T25] usb 1-1: New USB device strings: Mfr=1, Product=236, SerialNumber=2 [ 293.076378][ T25] usb 1-1: Product: syz [ 293.077282][ T25] usb 1-1: Manufacturer: syz [ 293.078213][ T25] usb 1-1: SerialNumber: syz [ 293.081075][ T25] usb 1-1: config 0 descriptor?? [ 293.092648][ T3989] raw-gadget.0 gadget: fail, usb_ep_enable returned -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 356.353618][ T3584] udevd[3584]: worker [3987] /devices/platform/dummy_hcd.0/usb1/1-1 is taking a long time executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 476.420970][ T3584] udevd[3584]: worker [3987] /devices/platform/dummy_hcd.0/usb1/1-1 timeout; kill it [ 476.423279][ T3584] udevd[3584]: seq 9335 '/devices/platform/dummy_hcd.0/usb1/1-1' killed [ 476.428013][ T3584] udevd[3584]: worker [3987] terminated by signal 9 (Killed) [ 476.429655][ T3584] udevd[3584]: worker [3987] failed while handling '/devices/platform/dummy_hcd.0/usb1/1-1' executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 571.382480][ T27] INFO: task kworker/1:1:25 blocked for more than 143 seconds. [ 571.384126][ T27] Not tainted 5.15.118-syzkaller #0 [ 571.385305][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 571.387228][ T27] task:kworker/1:1 state:D stack: 0 pid: 25 ppid: 2 flags:0x00000008 [ 571.389080][ T27] Workqueue: usb_hub_wq hub_event [ 571.390054][ T27] Call trace: [ 571.390714][ T27] __switch_to+0x308/0x5e8 [ 571.391643][ T27] __schedule+0xf10/0x1e38 [ 571.392960][ T27] schedule+0x11c/0x1c8 [ 571.393900][ T27] schedule_timeout+0xb8/0x344 [ 571.394980][ T27] do_wait_for_common+0x214/0x388 [ 571.396053][ T27] wait_for_completion+0x4c/0x64 [ 571.397066][ T27] virtio_cleanup+0x7c/0xa4 [ 571.398048][ T27] drop_current_rng+0xa8/0x140 [ 571.399022][ T27] set_current_rng+0x358/0x4ac [ 571.399942][ T27] hwrng_register+0x31c/0x4c8 [ 571.400882][ T27] chaoskey_probe+0x618/0x92c [ 571.401806][ T27] usb_probe_interface+0x500/0x984 [ 571.402904][ T27] really_probe+0x26c/0xaec [ 571.403837][ T27] __driver_probe_device+0x194/0x3b4 [ 571.404966][ T27] driver_probe_device+0x78/0x34c [ 571.405957][ T27] __device_attach_driver+0x28c/0x4d8 [ 571.407051][ T27] bus_for_each_drv+0x158/0x1e0 [ 571.408082][ T27] __device_attach+0x2f0/0x480 [ 571.409043][ T27] device_initial_probe+0x24/0x34 [ 571.410042][ T27] bus_probe_device+0xbc/0x1c8 [ 571.411033][ T27] device_add+0xae0/0xef4 [ 571.411946][ T27] usb_set_configuration+0x15e0/0x1b60 [ 571.413088][ T27] usb_generic_driver_probe+0x8c/0x148 [ 571.414216][ T27] usb_probe_device+0x120/0x25c [ 571.415213][ T27] really_probe+0x26c/0xaec [ 571.416150][ T27] __driver_probe_device+0x194/0x3b4 [ 571.417207][ T27] driver_probe_device+0x78/0x34c [ 571.418228][ T27] __device_attach_driver+0x28c/0x4d8 [ 571.419309][ T27] bus_for_each_drv+0x158/0x1e0 [ 571.420206][ T27] __device_attach+0x2f0/0x480 [ 571.421164][ T27] device_initial_probe+0x24/0x34 [ 571.422110][ T27] bus_probe_device+0xbc/0x1c8 [ 571.423117][ T27] device_add+0xae0/0xef4 [ 571.424065][ T27] usb_new_device+0x8fc/0x1448 [ 571.425018][ T27] hub_event+0x22e4/0x48c4 [ 571.425944][ T27] process_one_work+0x790/0x11b8 [ 571.426948][ T27] worker_thread+0x910/0x1034 [ 571.427916][ T27] kthread+0x37c/0x45c [ 571.428855][ T27] ret_from_fork+0x10/0x20 [ 571.429859][ T27] [ 571.429859][ T27] Showing all locks held in the system: [ 571.431490][ T27] 6 locks held by kworker/1:1/25: [ 571.432542][ T27] #0: ffff0000c2756538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 [ 571.434791][ T27] #1: ffff800018a17c00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 [ 571.437143][ T27] #2: ffff0000cef80220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c8/0x48c4 [ 571.439046][ T27] #3: ffff0000d82cd220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x90/0x480 [ 571.440958][ T27] #4: ffff0000d82ce1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x90/0x480 [ 571.443062][ T27] #5: ffff800015a63b28 (rng_mutex){+.+.}-{3:3}, at: hwrng_register+0xb4/0x4c8 [ 571.445020][ T27] 1 lock held by khungtaskd/27: [ 571.445998][ T27] #0: ffff800014ac19a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 571.447935][ T27] 1 lock held by hwrng/1218: [ 571.448984][ T27] #0: ffff800015a63b28 (rng_mutex){+.+.}-{3:3}, at: get_current_rng+0x28/0x120 [ 571.450872][ T27] 2 locks held by getty/3719: [ 571.451900][ T27] #0: ffff0000d2086098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 571.453913][ T27] #1: ffff80001a0ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 [ 571.456009][ T27] [ 571.456505][ T27] ============================================= [ 571.456505][ T27] [ 571.458191][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 571.459624][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.118-syzkaller #0 [ 571.461347][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 571.463422][ T27] Call trace: [ 571.464045][ T27] dump_backtrace+0x0/0x530 [ 571.464985][ T27] show_stack+0x2c/0x3c [ 571.465861][ T27] dump_stack_lvl+0x108/0x170 [ 571.466799][ T27] dump_stack+0x1c/0x58 [ 571.467612][ T27] panic+0x304/0x8b4 [ 571.468425][ T27] hung_task_panic+0x0/0x2c [ 571.469417][ T27] kthread+0x37c/0x45c [ 571.470299][ T27] ret_from_fork+0x10/0x20 [ 571.471193][ T27] SMP: stopping secondary CPUs [ 571.472218][ T27] Kernel Offset: disabled [ 571.473059][ T27] CPU features: 0x000081c1,21302e40 [ 571.474120][ T27] Memory Limit: none [ 571.780978][ T27] Rebooting in 86400 seconds..