Warning: Permanently added '10.128.1.82' (ECDSA) to the list of known hosts.
syzkaller login: [   53.149904][ T3140] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   53.510005][ T3140] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping
[   53.521568][ T3140] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint descriptor of length 2, skipping
[   53.534147][ T3140] usb 1-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1
[   53.699835][ T3140] usb 1-1: New USB device found, idVendor=2040, idProduct=d863, bcdDevice=e4.77
[   53.708891][ T3140] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   53.718185][ T3140] usb 1-1: Product: syz
[   53.723162][ T3140] usb 1-1: Manufacturer: syz
[   53.727990][ T3140] usb 1-1: SerialNumber: syz
[   53.738292][ T3140] usb 1-1: config 0 descriptor??
[   53.785723][ T3140] usb 1-1: dvb_usb_v2: found a 'Hauppauge Mercury' in warm state
[   53.808948][ T3140] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   53.823538][ T3140] dvbdev: DVB: registering new adapter (Hauppauge Mercury)
[   53.831195][ T3140] usb 1-1: media controller created
[   53.841855][ T3140] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[   53.855445][ T3140] usb 1-1: selecting invalid altsetting 1
[   53.861786][ T3140] set interface failed
[   53.861804][ T3140] ------------[ cut here ]------------
[   53.872410][ T3140] DEBUG_LOCKS_WARN_ON(lock->magic != lock)
[   53.872464][ T3140] WARNING: CPU: 1 PID: 3140 at kernel/locking/mutex.c:931 __mutex_lock_common+0x207f/0x2eb0
[   53.888728][ T3140] Modules linked in:
[   53.892941][ T3140] CPU: 1 PID: 3140 Comm: kworker/1:2 Not tainted 5.12.0-rc5-syzkaller #0
[   53.901762][ T3140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.912444][ T3140] Workqueue: usb_hub_wq hub_event
[   53.917612][ T3140] RIP: 0010:__mutex_lock_common+0x207f/0x2eb0
[   53.924318][ T3140] Code: 84 c0 0f 85 aa 0b 00 00 83 3d 74 00 61 04 00 0f 85 49 e0 ff ff 48 c7 c7 80 54 ae 89 48 c7 c6 40 55 ae 89 31 c0 e8 71 0b f4 f7 <0f> 0b e9 2d e0 ff ff 4d 8d 74 24 08 4c 89 f7 e8 cd 6d 00 00 48 c7
[   53.944435][ T3140] RSP: 0018:ffffc9000219ed28 EFLAGS: 00010246
[   53.950643][ T3140] RAX: c1b30a893c057900 RBX: 0000000000000001 RCX: ffff88801b7cb880
[   53.958616][ T3140] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[   53.966837][ T3140] RBP: 0000000000000000 R08: ffffffff8160b612 R09: ffffed10173a3f1c
[   53.975134][ T3140] R10: ffffed10173a3f1c R11: 0000000000000000 R12: ffff88802b5051d8
[   53.985227][ T