general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 0 PID: 9 Comm: kworker/0:1H Not tainted 5.18.0-rc7-syzkaller-00015-gef1302160bfb #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: events_highpri snd_usbmidi_out_work
RIP: 0010:__lock_acquire+0xd85/0x56c0 kernel/locking/lockdep.c:4899
Code: 1f 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 a1 a0 1f 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 15 31 00 00 48 81 3b 20 64 27 8f 0f 84 4f f3 ff
RSP: 0018:ffffc900005cf8e8 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000068 RCX: 0000000000000000
RDX: 000000000000000d RSI: 0000000000000000 RDI: 0000000000000068
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888011860240 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0671f9d090 CR3: 0000000070150000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5641 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
 snd_rawmidi_transmit+0x47/0xf0 sound/core/rawmidi.c:1407
 snd_usbmidi_standard_output+0x264/0xc10 sound/usb/midi.c:650
 snd_usbmidi_do_output+0x200/0x510 sound/usb/midi.c:311
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xd85/0x56c0 kernel/locking/lockdep.c:4899
Code: 1f 0e 41 be 01 00 00 00 0f 86 c8 00 00 00 89 05 a1 a0 1f 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 15 31 00 00 48 81 3b 20 64 27 8f 0f 84 4f f3 ff
RSP: 0018:ffffc900005cf8e8 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000068 RCX: 0000000000000000
RDX: 000000000000000d RSI: 0000000000000000 RDI: 0000000000000068
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888011860240 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0671f9d090 CR3: 0000000070150000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	41 be 01 00 00 00    	mov    $0x1,%r14d
   6:	0f 86 c8 00 00 00    	jbe    0xd4
   c:	89 05 a1 a0 1f 0e    	mov    %eax,0xe1fa0a1(%rip)        # 0xe1fa0b3
  12:	e9 bd 00 00 00       	jmpq   0xd4
  17:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1e:	fc ff df
  21:	48 89 da             	mov    %rbx,%rdx
  24:	48 c1 ea 03          	shr    $0x3,%rdx
* 28:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2c:	0f 85 15 31 00 00    	jne    0x3147
  32:	48 81 3b 20 64 27 8f 	cmpq   $0xffffffff8f276420,(%rbx)
  39:	0f                   	.byte 0xf
  3a:	84 4f f3             	test   %cl,-0xd(%rdi)
  3d:	ff                   	.byte 0xff