[ 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 syzkaller login: [ 16.690410][ C1] random: crng init done [ 16.694722][ C1] random: 7 urandom warning(s) missed due to ratelimiting Warning: Permanently added '10.128.0.169' (ECDSA) to the list of known hosts. executing program [ 45.251510][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.611503][ T12] usb 1-1: New USB device found, idVendor=0eb1, idProduct=7007, bcdDevice= 2.05 [ 45.620674][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.631123][ T12] usb 1-1: config 0 descriptor?? [ 45.673533][ T12] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN [ 45.684564][ T12] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 45.692947][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.7.0-rc6-syzkaller #0 [ 45.701077][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.711112][ T12] Workqueue: usb_hub_wq hub_event [ 45.716128][ T12] RIP: 0010:go7007_usb_probe+0x4ba/0x1d49 [ 45.721830][ T12] Code: c1 ee 03 80 3c 0e 00 0f 85 59 16 00 00 4c 8b a2 e8 05 00 00 48 b9 00 00 00 00 00 fc ff df 49 8d 7c 24 03 48 89 fe 48 c1 ee 03 <0f> b6 0c 0e 48 89 fe 83 e6 07 40 38 f1 7f 08 84 c9 0f 85 11 16 00 [ 45.741508][ T12] RSP: 0018:ffff8881da21f110 EFLAGS: 00010246 [ 45.747554][ T12] RAX: ffff8881cd9c4800 RBX: ffff8881c5f7b000 RCX: dffffc0000000000 [ 45.755496][ T12] RDX: ffff8881c5f7a000 RSI: 0000000000000000 RDI: 0000000000000003 [ 45.763439][ T12] RBP: ffff8881c3634000 R08: 0000000000000001 R09: fffffbfff126c8c6 [ 45.771381][ T12] R10: ffffffff8936462f R11: fffffbfff126c8c5 R12: 0000000000000000 [ 45.779323][ T12] R13: ffff8881c5f7a0a0 R14: ffff8881d9032100 R15: ffffffff86789720 [ 45.787266][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 45.796180][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.802735][ T12] CR2: 00007f9e79e09000 CR3: 00000001c7973000 CR4: 00000000001406f0 [ 45.810678][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.818636][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.826592][ T12] Call Trace: [ 45.829858][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 45.835114][ T12] ? go7007_usb_interface_reset+0x550/0x550 [ 45.840991][ T12] ? rpm_callback+0x230/0x230 [ 45.845638][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 45.850977][ T12] ? __pm_runtime_resume+0x111/0x180 [ 45.856232][ T12] usb_probe_interface+0x310/0x800 [ 45.861318][ T12] ? usb_probe_device+0x230/0x230 [ 45.866313][ T12] really_probe+0x290/0xac0 [ 45.870801][ T12] driver_probe_device+0x223/0x350 [ 45.875882][ T12] __device_attach_driver+0x1d1/0x290 [ 45.881223][ T12] ? driver_allows_async_probing+0x160/0x160 [ 45.887171][ T12] bus_for_each_drv+0x162/0x1e0 [ 45.891990][ T12] ? bus_rescan_devices+0x20/0x20 [ 45.896984][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 45.902760][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 45.908033][ T12] __device_attach+0x21a/0x390 [ 45.912780][ T12] ? device_bind_driver+0xd0/0xd0 [ 45.917784][ T12] bus_probe_device+0x1e4/0x290 [ 45.922630][ T12] device_add+0x1367/0x1c40 [ 45.927110][ T12] ? wait_for_completion+0x280/0x280 [ 45.932375][ T12] ? device_link_remove+0x110/0x110 [ 45.937561][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 45.943350][ T12] usb_set_configuration+0xed4/0x1850 [ 45.948705][ T12] usb_generic_driver_probe+0x9d/0xe0 [ 45.954068][ T12] usb_probe_device+0xd9/0x230 [ 45.958892][ T12] ? usb_suspend+0x600/0x600 [ 45.963469][ T12] really_probe+0x290/0xac0 [ 45.967953][ T12] driver_probe_device+0x223/0x350 [ 45.973050][ T12] __device_attach_driver+0x1d1/0x290 [ 45.978419][ T12] ? driver_allows_async_probing+0x160/0x160 [ 45.984367][ T12] bus_for_each_drv+0x162/0x1e0 [ 45.989188][ T12] ? bus_rescan_devices+0x20/0x20 [ 45.994183][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 45.999960][ T12] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 46.005230][ T12] __device_attach+0x21a/0x390 [ 46.009981][ T12] ? device_bind_driver+0xd0/0xd0 [ 46.014977][ T12] bus_probe_device+0x1e4/0x290 [ 46.019796][ T12] device_add+0x1367/0x1c40 [ 46.024272][ T12] ? device_link_remove+0x110/0x110 [ 46.031290][ T12] usb_new_device.cold+0x552/0xf6e [ 46.036375][ T12] ? hub_disconnect+0x4a0/0x4a0 [ 46.041198][ T12] ? mark_held_locks+0x9f/0xe0 [ 46.045959][ T12] ? _raw_spin_unlock_irq+0x1f/0x30 [ 46.051126][ T12] hub_event+0x226d/0x43c0 [ 46.055514][ T12] ? hub_port_debounce+0x350/0x350 [ 46.060597][ T12] ? __x64_sys_sysinfo+0x31/0x40 [ 46.065506][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 46.071020][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.076275][ T12] ? _raw_spin_unlock_irq+0x1f/0x30 [ 46.081461][ T12] process_one_work+0x965/0x1630 [ 46.086376][ T12] ? lock_release+0x720/0x720 [ 46.091019][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 46.096358][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 46.101271][ T12] worker_thread+0x96/0xe20 [ 46.105746][ T12] ? process_one_work+0x1630/0x1630 [ 46.111718][ T12] kthread+0x326/0x430 [ 46.115870][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 46.121211][ T12] ret_from_fork+0x24/0x30 executing program [ 46.125594][ T12] Modules linked in: [ 46.129570][ T12] ---[ end trace 1f3abb564b3c9839 ]--- [ 46.135057][ T12] RIP: 0010:go7007_usb_probe+0x4ba/0x1d49 [ 46.140771][ T12] Code: c1 ee 03 80 3c 0e 00 0f 85 59 16 00 00 4c 8b a2 e8 05 00 00 48 b9 00 00 00 00 00 fc ff df 49 8d 7c 24 03 48 89 fe 48 c1 ee 03 <0f> b6 0c 0e 48 89 fe 83 e6 07 40 38 f1 7f 08 84 c9 0f 85 11 16 00 [ 46.160403][ T12] RSP: 0018:ffff8881da21f110 EFLAGS: 00010246 [ 46.166500][ T12] RAX: ffff8881cd9c4800 RBX: ffff8881c5f7b000 RCX: dffffc0000000000 [ 46.174523][ T12] RDX: ffff8881c5f7a000 RSI: 0000000000000000 RDI: 0000000000000003 [ 46.182521][ T12] RBP: ffff8881c3634000 R08: 0000000000000001 R09: fffffbfff126c8c6 [ 46.190483][ T12] R10: ffffffff8936462f R11: fffffbfff126c8c5 R12: 0000000000000000 [ 46.198494][ T12] R13: ffff8881c5f7a0a0 R14: ffff8881d9032100 R15: ffffffff86789720 [ 46.206498][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 46.215435][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.222309][ T12] CR2: 00007f9e79e09000 CR3: 0000000007024000 CR4: 00000000001406f0 [ 46.230365][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.238346][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.246332][ T12] Kernel panic - not syncing: Fatal exception [ 46.252963][ T12] Kernel Offset: disabled [ 46.257276][ T12] Rebooting in 86400 seconds..