------------[ cut here ]------------
URB 00000000bcdec5af submitted while active
WARNING: CPU: 1 PID: 10441 at drivers/usb/core/urb.c:363 usb_submit_urb+0x112f/0x1320 drivers/usb/core/urb.c:363
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 10441 Comm: syz-executor.1 Not tainted 5.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x45 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:542
RIP: 0010:usb_submit_urb+0x112f/0x1320 drivers/usb/core/urb.c:363
Code: 89 de e8 34 00 5f fc 84 db 0f 85 3d fa ff ff e8 e7 03 5f fc 4c 89 fe 48 c7 c7 40 05 cd 88 c6 05 4b 38 95 05 01 e8 33 44 30 fc <0f> 0b e9 1b fa ff ff c7 44 24 14 01 00 00 00 e9 3e f5 ff ff 41 bd
RSP: 0018:ffffc9001656f2a0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff815d4f87 RDI: fffff52002cade46
RBP: ffff8880a372b800 R08: 0000000000000001 R09: ffff8880ae7318e7
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 00000000fffffff0 R14: ffff8880918ddc00 R15: ffff8880918ddc00
 snd_usbmidi_submit_urb sound/usb/midi.c:194 [inline]
 snd_usbmidi_input_start_ep sound/usb/midi.c:2313 [inline]
 snd_usbmidi_input_start.part.0+0x101/0x200 sound/usb/midi.c:2329
 snd_usbmidi_input_start sound/usb/midi.c:1119 [inline]
 substream_open.isra.0+0x82c/0xc10 sound/usb/midi.c:1119
 open_substream+0x42e/0x880 sound/core/rawmidi.c:299
 rawmidi_open_priv+0x519/0x6f0 sound/core/rawmidi.c:342
 snd_rawmidi_kernel_open+0x1b5/0x270 sound/core/rawmidi.c:382
 midisynth_subscribe+0xf2/0x350 sound/core/seq/seq_midi.c:170
 subscribe_port sound/core/seq/seq_ports.c:412 [inline]
 check_and_subscribe_port+0x89a/0xb80 sound/core/seq/seq_ports.c:495
 snd_seq_port_connect+0x2e6/0x520 sound/core/seq/seq_ports.c:564
 snd_seq_ioctl_subscribe_port+0x1fc/0x400 sound/core/seq/seq_clientmgr.c:1484
 snd_seq_kernel_client_ctl+0xeb/0x130 sound/core/seq/seq_clientmgr.c:2353
 snd_seq_oss_midi_open+0x466/0x6e0 sound/core/seq/oss/seq_oss_midi.c:364
 snd_seq_oss_synth_setup_midi+0x123/0x520 sound/core/seq/oss/seq_oss_synth.c:269
 snd_seq_oss_open+0x87e/0xa10 sound/core/seq/oss/seq_oss_init.c:261
 odev_open+0x6c/0x90 sound/core/seq/oss/seq_oss.c:125
 soundcore_open+0x445/0x600 sound/sound_core.c:593
 chrdev_open+0x266/0x770 fs/char_dev.c:414
 do_dentry_open+0x501/0x1290 fs/open.c:828
 do_open fs/namei.c:3243 [inline]
 path_openat+0x1bb9/0x2750 fs/namei.c:3360
 do_filp_open+0x17e/0x3c0 fs/namei.c:3387
 do_sys_openat2+0x16f/0x3b0 fs/open.c:1179
 do_sys_open fs/open.c:1195 [inline]
 __do_sys_openat fs/open.c:1209 [inline]
 __se_sys_openat fs/open.c:1204 [inline]
 __x64_sys_openat+0x13f/0x1f0 fs/open.c:1204
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c1d9
Code: Bad RIP value.
RSP: 002b:00007fd5c7b1cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000020dc0 RCX: 000000000045c1d9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 000000000078bf48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 0000000000c9fb6f R14: 00007fd5c7b1d9c0 R15: 000000000078bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..