[info] Using makefile-style concurrent boot in runlevel 2. [ 16.468188][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.204320][ T12] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 38.564426][ T12] usb 1-1: config 0 has an invalid interface number: 49 but max is 0 [ 38.572718][ T12] usb 1-1: config 0 has no interface number 0 [ 38.579095][ T12] usb 1-1: config 0 interface 49 has no altsetting 0 [ 38.585854][ T12] usb 1-1: New USB device found, idVendor=0e41, idProduct=4150, bcdDevice=72.03 [ 38.595053][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.604113][ T12] usb 1-1: config 0 descriptor?? [ 38.657114][ T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 found [ 38.994530][ T12] snd_usb_toneport 1-1:0.49: read request failed (error -110) [ 39.014391][ T12] snd_usb_toneport 1-1:0.49: read request failed (error -32) executing program [ 39.034371][ T12] snd_usb_toneport 1-1:0.49: write request failed (error -32) [ 39.064370][ T12] usb 1-1: send failed (error -32) [ 39.085355][ T12] usb 1-1: send failed (error -32) [ 39.096335][ T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 now attached [ 39.105143][ T12] usb 1-1: USB disconnect, device number 2 [ 39.114537][ T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 now disconnected [ 39.484299][ T12] usb 1-1: new full-speed USB device number 3 using dummy_hcd [ 39.844381][ T12] usb 1-1: config 0 has an invalid interface number: 49 but max is 0 [ 39.852711][ T12] usb 1-1: config 0 has no interface number 0 [ 39.859036][ T12] usb 1-1: config 0 interface 49 has no altsetting 0 [ 39.865954][ T12] usb 1-1: New USB device found, idVendor=0e41, idProduct=4150, bcdDevice=72.03 [ 39.875036][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.884179][ T12] usb 1-1: config 0 descriptor?? [ 39.936288][ T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 found [ 40.264388][ T12] snd_usb_toneport 1-1:0.49: read request failed (error -110) [ 40.284401][ T12] snd_usb_toneport 1-1:0.49: read request failed (error -32) [ 40.304414][ T12] snd_usb_toneport 1-1:0.49: write request failed (error -32) [ 40.324398][ T12] usb 1-1: send failed (error -32) [ 40.344382][ T12] usb 1-1: send failed (error -32) [ 40.354462][ T12] snd_usb_toneport 1-1:0.49: Line 6 POD Studio UX1 now attached [ 41.424836][ T12] ================================================================== [ 41.433194][ T12] BUG: KASAN: null-ptr-deref in submit_audio_out_urb+0x919/0x1780 [ 41.440983][ T12] Write of size 20 at addr 0000000000000010 by task kworker/0:1/12 [ 41.448848][ T12] [ 41.451228][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.0-rc6+ #15 [ 41.458857][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.468906][ T12] Workqueue: events line6_startup_work [ 41.474380][ T12] Call Trace: [ 41.477660][ T12] dump_stack+0xca/0x13e [ 41.482013][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.487594][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.493853][ T12] __kasan_report.cold+0x5/0x32 [ 41.498821][ T12] ? __mutex_lock+0x371/0x12b0 [ 41.503629][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.509170][ T12] kasan_report+0xe/0x20 [ 41.513405][ T12] memset+0x20/0x40 [ 41.517214][ T12] submit_audio_out_urb+0x919/0x1780 [ 41.522647][ T12] ? line6_stream_start+0x50/0x1f0 [ 41.527867][ T12] line6_submit_audio_out_all_urbs+0xc9/0x120 [ 41.533919][ T12] line6_stream_start+0x156/0x1f0 [ 41.539013][ T12] line6_pcm_acquire+0x134/0x210 [ 41.544066][ T12] ? snd_toneport_source_info+0x160/0x160 [ 41.549780][ T12] line6_startup_work+0x42/0x50 [ 41.554615][ T12] process_one_work+0x905/0x1570 [ 41.559534][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.564897][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 41.569918][ T12] worker_thread+0x96/0xe20 [ 41.574480][ T12] ? process_one_work+0x1570/0x1570 [ 41.579857][ T12] kthread+0x30b/0x410 [ 41.583987][ T12] ? kthread_park+0x1a0/0x1a0 [ 41.588659][ T12] ret_from_fork+0x24/0x30 [ 41.593053][ T12] ================================================================== [ 41.601086][ T12] Disabling lock debugging due to kernel taint [ 41.607345][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 41.614117][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.2.0-rc6+ #15 [ 41.623212][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.633851][ T12] Workqueue: events line6_startup_work [ 41.639552][ T12] Call Trace: [ 41.642850][ T12] dump_stack+0xca/0x13e [ 41.647299][ T12] panic+0x292/0x6c9 [ 41.651412][ T12] ? __warn_printk+0xf3/0xf3 [ 41.655987][ T12] ? lock_downgrade+0x630/0x630 [ 41.660824][ T12] ? trace_hardirqs_off+0x50/0x1c0 [ 41.666307][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.671753][ T12] end_report+0x43/0x49 [ 41.676047][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.681886][ T12] __kasan_report.cold+0xd/0x32 [ 41.686734][ T12] ? __mutex_lock+0x371/0x12b0 [ 41.691497][ T12] ? submit_audio_out_urb+0x919/0x1780 [ 41.697046][ T12] kasan_report+0xe/0x20 [ 41.701464][ T12] memset+0x20/0x40 [ 41.705269][ T12] submit_audio_out_urb+0x919/0x1780 [ 41.710679][ T12] ? line6_stream_start+0x50/0x1f0 [ 41.715772][ T12] line6_submit_audio_out_all_urbs+0xc9/0x120 [ 41.721934][ T12] line6_stream_start+0x156/0x1f0 [ 41.726974][ T12] line6_pcm_acquire+0x134/0x210 [ 41.731894][ T12] ? snd_toneport_source_info+0x160/0x160 [ 41.737829][ T12] line6_startup_work+0x42/0x50 [ 41.742780][ T12] process_one_work+0x905/0x1570 [ 41.747823][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.753626][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 41.758642][ T12] worker_thread+0x96/0xe20 [ 41.763126][ T12] ? process_one_work+0x1570/0x1570 [ 41.768439][ T12] kthread+0x30b/0x410 [ 41.772639][ T12] ? kthread_park+0x1a0/0x1a0 [ 41.777303][ T12] ret_from_fork+0x24/0x30 [ 41.782249][ T12] Kernel Offset: disabled [ 41.786559][ T12] Rebooting in 86400 seconds..