RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000000007dc R14: 00000000004cab2a R15: 00007fa0ed0b56d4 usb 2-1: usb_submit_urb: -12 ------------[ cut here ]------------ URB 00000000af2f9962 submitted while active WARNING: CPU: 1 PID: 9707 at drivers/usb/core/urb.c:363 usb_submit_urb+0xdde/0x1470 drivers/usb/core/urb.c:363 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9707 Comm: syz-executor.1 Not tainted 5.6.0-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+0x128/0x182 lib/dump_stack.c:118 panic+0x22a/0x4e3 kernel/panic.c:221 __warn.cold.10+0x25/0x26 kernel/panic.c:582 report_bug+0x1ad/0x270 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x123/0x210 arch/x86/kernel/traps.c:267 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:usb_submit_urb+0xdde/0x1470 drivers/usb/core/urb.c:363 Code: 59 92 06 05 00 b8 f0 ff ff ff 0f 85 32 fe ff ff 48 89 de 48 c7 c7 20 69 e1 87 89 44 24 04 c6 05 39 92 06 05 01 e8 be e8 ae fc <0f> 0b 8b 44 24 04 e9 0d fe ff ff 41 be 01 00 00 00 e9 aa f8 ff ff RSP: 0018:ffffc9000859f3a8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888094e63900 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8b6414a0 RBP: ffff888094e63900 R08: ffffed1015d26661 R09: ffffed1015d26661 R10: ffffed1015d26660 R11: ffff8880ae933307 R12: dffffc0000000000 R13: ffff8880a73ee030 R14: ffffed1012b11d80 R15: ffff88809588ec00 snd_usbmidi_submit_urb+0xd/0x40 sound/usb/midi.c:194 snd_usbmidi_input_start_ep sound/usb/midi.c:2294 [inline] snd_usbmidi_input_start.part.11+0xc5/0x270 sound/usb/midi.c:2310 snd_usbmidi_input_start sound/usb/midi.c:1119 [inline] substream_open.isra.21+0x45e/0x750 sound/usb/midi.c:1119 open_substream+0x3c1/0x7b0 sound/core/rawmidi.c:288 rawmidi_open_priv+0x23e/0x6f0 sound/core/rawmidi.c:331 snd_rawmidi_kernel_open+0x152/0x200 sound/core/rawmidi.c:371 midisynth_subscribe+0xe5/0x2f0 sound/core/seq/seq_midi.c:170 subscribe_port sound/core/seq/seq_ports.c:412 [inline] check_and_subscribe_port+0x45b/0x6d0 sound/core/seq/seq_ports.c:495 snd_seq_port_connect+0x2c2/0x4b0 sound/core/seq/seq_ports.c:564 snd_seq_ioctl_subscribe_port+0x1aa/0x2b0 sound/core/seq/seq_clientmgr.c:1484 snd_seq_oss_midi_open+0x325/0x560 sound/core/seq/oss/seq_oss_midi.c:364 snd_seq_oss_synth_setup_midi+0xf2/0x4c0 sound/core/seq/oss/seq_oss_synth.c:269 snd_seq_oss_open+0x657/0x7b0 sound/core/seq/oss/seq_oss_init.c:261 odev_open+0x5b/0x80 sound/core/seq/oss/seq_oss.c:125 chrdev_open+0x1d8/0x4e0 fs/char_dev.c:414 do_dentry_open+0x3e5/0x1010 fs/open.c:797 do_last fs/namei.c:3490 [inline] path_openat+0x8b5/0x2aa0 fs/namei.c:3607 do_filp_open+0x171/0x240 fs/namei.c:3637 do_sys_openat2+0x2b9/0x480 fs/open.c:1149 do_sys_open+0x85/0xd0 fs/open.c:1165 do_syscall_64+0xc6/0x620 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45ca69 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa0ed0b4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00000000004f8580 RCX: 000000000045ca69 RDX: 000000000000c006 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000000007dc R14: 00000000004cab2a R15: 00007fa0ed0b56d4 Kernel Offset: disabled Rebooting in 86400 seconds..