Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.954865][ T2628] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 34.334769][ T2628] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xB has an invalid bInterval 0, changing to 7 [ 34.345660][ T2628] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 34.355543][ T2628] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 34.366152][ T2628] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 107, changing to 10 [ 34.377346][ T2628] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has invalid maxpacket 1226, setting to 1024 [ 34.388451][ T2628] usb 1-1: New USB device found, idVendor=0694, idProduct=0001, bcdDevice=12.7b [ 34.397558][ T2628] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 34.407954][ T2628] usb 1-1: config 0 descriptor?? [ 34.654526][ T2628] legousbtower 1-1:0.0: get version request failed: 0 executing program [ 34.856805][ T2628] usb 1-1: USB disconnect, device number 2 [ 34.870469][ T2628] general protection fault, probably for non-canonical address 0xdffffc0000000013: 0000 [#1] SMP KASAN [ 34.881511][ T2628] KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f] [ 34.889914][ T2628] CPU: 1 PID: 2628 Comm: kworker/1:2 Not tainted 5.10.0-rc7-syzkaller #0 [ 34.898298][ T2628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.908347][ T2628] Workqueue: usb_hub_wq hub_event [ 34.913351][ T2628] RIP: 0010:tower_disconnect+0x53/0x360 [ 34.918909][ T2628] Code: 03 80 3c 02 00 0f 85 15 03 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd 98 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 7b 02 00 00 48 c7 c6 40 07 bb 87 48 [ 34.938492][ T2628] RSP: 0018:ffffc900001877c0 EFLAGS: 00010202 [ 34.944533][ T2628] RAX: dffffc0000000000 RBX: ffff888113978000 RCX: ffffffff8381f807 [ 34.952483][ T2628] RDX: 0000000000000013 RSI: ffffffff83bab792 RDI: 0000000000000098 [ 34.960485][ T2628] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff898cc4ef [ 34.968476][ T2628] R10: 0000000000000002 R11: 0000000000000000 R12: ffff888113978090 [ 34.976460][ T2628] R13: ffff888113978078 R14: ffff888113978030 R15: ffff888113978098 [ 34.984414][ T2628] FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 34.993317][ T2628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.999876][ T2628] CR2: 00000000004c4788 CR3: 0000000108c85000 CR4: 00000000001506e0 [ 35.007821][ T2628] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.015765][ T2628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.023856][ T2628] Call Trace: [ 35.027177][ T2628] usb_unbind_interface+0x1d8/0x8d0 [ 35.032366][ T2628] ? kernfs_remove_by_name_ns+0x62/0xb0 [ 35.037932][ T2628] ? usb_unbind_device+0x1a0/0x1a0 [ 35.043057][ T2628] __device_release_driver+0x3bd/0x6f0 [ 35.048494][ T2628] device_release_driver+0x26/0x40 [ 35.053580][ T2628] bus_remove_device+0x2eb/0x5a0 [ 35.058526][ T2628] device_del+0x502/0xec0 [ 35.062830][ T2628] ? device_link_add_missing_supplier_links+0x370/0x370 [ 35.069777][ T2628] ? kobject_put+0x1f3/0x540 [ 35.074351][ T2628] usb_disable_device+0x35b/0x7b0 [ 35.079364][ T2628] usb_disconnect.cold+0x27d/0x780 [ 35.084447][ T2628] hub_event+0x1c8a/0x42d0 [ 35.088857][ T2628] ? hub_port_debounce+0x3b0/0x3b0 [ 35.093957][ T2628] ? __lock_acquire+0x820/0x54f0 [ 35.098887][ T2628] ? put_pwq+0xb1/0x1b0 [ 35.103016][ T2628] ? lock_release+0x6d0/0x6d0 [ 35.107666][ T2628] ? lock_downgrade+0x6d0/0x6d0 [ 35.112495][ T2628] ? do_raw_spin_lock+0x120/0x2b0 [ 35.117540][ T2628] process_one_work+0x933/0x1520 [ 35.122453][ T2628] ? lock_release+0x6d0/0x6d0 [ 35.127109][ T2628] ? pwq_dec_nr_in_flight+0x320/0x320 [ 35.132456][ T2628] ? rwlock_bug.part.0+0x90/0x90 [ 35.137382][ T2628] worker_thread+0x64c/0x1120 [ 35.142034][ T2628] ? __kthread_parkme+0x118/0x1d0 [ 35.147033][ T2628] ? process_one_work+0x1520/0x1520 [ 35.152204][ T2628] kthread+0x38c/0x460 [ 35.156267][ T2628] ? _raw_spin_unlock_irq+0x1f/0x30 [ 35.161440][ T2628] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 35.167310][ T2628] ret_from_fork+0x1f/0x30 [ 35.171708][ T2628] Modules linked in: [ 35.175661][ T2628] ---[ end trace 403e9e7d2b486784 ]--- [ 35.181139][ T2628] RIP: 0010:tower_disconnect+0x53/0x360 [ 35.186719][ T2628] Code: 03 80 3c 02 00 0f 85 15 03 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd 98 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 7b 02 00 00 48 c7 c6 40 07 bb 87 48 [ 35.206358][ T2628] RSP: 0018:ffffc900001877c0 EFLAGS: 00010202 [ 35.212412][ T2628] RAX: dffffc0000000000 RBX: ffff888113978000 RCX: ffffffff8381f807 [ 35.220414][ T2628] RDX: 0000000000000013 RSI: ffffffff83bab792 RDI: 0000000000000098 [ 35.228471][ T2628] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff898cc4ef [ 35.236475][ T2628] R10: 0000000000000002 R11: 0000000000000000 R12: ffff888113978090 [ 35.244486][ T2628] R13: ffff888113978078 R14: ffff888113978030 R15: ffff888113978098 [ 35.252454][ T2628] FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 35.261565][ T2628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.268189][ T2628] CR2: 00000000004c4788 CR3: 0000000108c85000 CR4: 00000000001506e0 [ 35.276177][ T2628] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.284174][ T2628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.292143][ T2628] Kernel panic - not syncing: Fatal exception [ 35.298886][ T2628] Kernel Offset: disabled [ 35.303201][ T2628] Rebooting in 86400 seconds..