Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   45.977863][   T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   46.217860][   T12] usb 1-1: Using ep0 maxpacket: 8
[   46.337946][   T12] usb 1-1: config 0 has an invalid interface number: 49 but max is 0
[   46.346897][   T12] usb 1-1: config 0 has no interface number 0
[   46.353123][   T12] usb 1-1: config 0 interface 49 has no altsetting 0
[   46.359935][   T12] usb 1-1: New USB device found, idVendor=0e41, idProduct=4150, bcdDevice=72.03
[   46.369159][   T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   46.378538][   T12] usb 1-1: config 0 descriptor??
[   46.430167][   T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 found
[   46.758079][   T12] snd_usb_toneport 1-1:0.49: read request failed (error -110)
[   46.777876][   T12] snd_usb_toneport 1-1:0.49: read request failed (error -32)
[   46.797890][   T12] snd_usb_toneport 1-1:0.49: write request failed (error -32)
[   46.817878][   T12] usb 1-1: send failed (error -32)
[   46.837883][   T12] usb 1-1: send failed (error -32)
[   46.849576][   T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 now attached
[   47.858465][   T12] ==================================================================
[   47.866618][   T12] BUG: KASAN: null-ptr-deref in submit_audio_out_urb+0x919/0x1780
[   47.874406][   T12] Write of size 20 at addr 0000000000000010 by task kworker/0:1/12
[   47.882274][   T12] 
[   47.884812][   T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc6+ #14
[   47.892309][   T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.902390][   T12] Workqueue: events line6_startup_work
[   47.907865][   T12] Call Trace:
[   47.911177][   T12]  dump_stack+0xca/0x13e
[   47.915441][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   47.920886][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   47.926335][   T12]  __kasan_report.cold+0x5/0x32
[   47.931177][   T12]  ? __mutex_lock+0x301/0x12b0
[   47.935922][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   47.941397][   T12]  kasan_report+0xe/0x20
[   47.945626][   T12]  memset+0x20/0x40
[   47.949422][   T12]  submit_audio_out_urb+0x919/0x1780
[   47.954692][   T12]  ? line6_stream_start+0x50/0x1f0
[   47.959792][   T12]  line6_submit_audio_out_all_urbs+0xc9/0x120
[   47.965843][   T12]  line6_stream_start+0x156/0x1f0
[   47.970856][   T12]  line6_pcm_acquire+0x134/0x210
[   47.975818][   T12]  ? snd_toneport_source_info+0x160/0x160
[   47.981520][   T12]  line6_startup_work+0x42/0x50
[   47.986358][   T12]  process_one_work+0x905/0x1570
[   47.991279][   T12]  ? pwq_dec_nr_in_flight+0x310/0x310
[   47.996672][   T12]  ? do_raw_spin_lock+0x11a/0x280
[   48.001725][   T12]  worker_thread+0x96/0xe20
[   48.006255][   T12]  ? process_one_work+0x1570/0x1570
[   48.011478][   T12]  kthread+0x30b/0x410
[   48.015533][   T12]  ? kthread_park+0x1a0/0x1a0
[   48.020226][   T12]  ret_from_fork+0x24/0x30
[   48.024625][   T12] ==================================================================
[   48.032867][   T12] Disabling lock debugging due to kernel taint
[   48.039003][   T12] Kernel panic - not syncing: panic_on_warn set ...
[   48.045566][   T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G    B             5.2.0-rc6+ #14
[   48.054514][   T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.064671][   T12] Workqueue: events line6_startup_work
[   48.070111][   T12] Call Trace:
[   48.073381][   T12]  dump_stack+0xca/0x13e
[   48.077600][   T12]  panic+0x292/0x6c9
[   48.081478][   T12]  ? __warn_printk+0xf3/0xf3
[   48.086104][   T12]  ? lock_downgrade+0x630/0x630
[   48.090936][   T12]  ? trace_hardirqs_off+0x50/0x1c0
[   48.096030][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   48.101474][   T12]  end_report+0x43/0x49
[   48.105643][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   48.111088][   T12]  __kasan_report.cold+0xd/0x32
[   48.115921][   T12]  ? __mutex_lock+0x301/0x12b0
[   48.120700][   T12]  ? submit_audio_out_urb+0x919/0x1780
[   48.126195][   T12]  kasan_report+0xe/0x20
[   48.130421][   T12]  memset+0x20/0x40
[   48.134212][   T12]  submit_audio_out_urb+0x919/0x1780
[   48.139473][   T12]  ? line6_stream_start+0x50/0x1f0
[   48.144599][   T12]  line6_submit_audio_out_all_urbs+0xc9/0x120
[   48.150650][   T12]  line6_stream_start+0x156/0x1f0
[   48.155696][   T12]  line6_pcm_acquire+0x134/0x210
[   48.160767][   T12]  ? snd_toneport_source_info+0x160/0x160
[   48.166485][   T12]  line6_startup_work+0x42/0x50
[   48.171325][   T12]  process_one_work+0x905/0x1570
[   48.176245][   T12]  ? pwq_dec_nr_in_flight+0x310/0x310
[   48.181601][   T12]  ? do_raw_spin_lock+0x11a/0x280
[   48.186606][   T12]  worker_thread+0x96/0xe20
[   48.191242][   T12]  ? process_one_work+0x1570/0x1570
[   48.196429][   T12]  kthread+0x30b/0x410
[   48.200795][   T12]  ? kthread_park+0x1a0/0x1a0
[   48.205730][   T12]  ret_from_fork+0x24/0x30
[   48.210493][   T12] Kernel Offset: disabled
[   48.214880][   T12] Rebooting in 86400 seconds..