ksys_ioctl fs/ioctl.c:742 [inline]
 __do_sys_ioctl fs/ioctl.c:749 [inline]
 __se_sys_ioctl fs/ioctl.c:747 [inline]
 __x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
usb usb4: device_add((null)) --> -22
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 460 Comm: syz-executor.2 Not tainted 5.4.265-syzkaller-04853-g43a5ead9254d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__device_attach+0xb4/0x490 drivers/base/dd.c:909
Code: 5c 24 68 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 7d 04 fd fe 4c 8b 2b 49 8d 9d c8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 51 03 00 00 0f b6 1b 89 de 83 e6 01 45
RSP: 0018:ffff8881eb4af9c0 EFLAGS: 00010202
RAX: 0000000000000019 RBX: 00000000000000c8 RCX: ffffffff84502cb5
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881eb4af940
RBP: ffff8881eb4afa90 R08: dffffc0000000000 R09: ffffed103d695f29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881eb171030
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f4e9555a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e95538c98 CR3: 00000001eba18000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 proc_ioctl+0x441/0x610 drivers/usb/core/devio.c:2269
 proc_ioctl_default+0xb9/0xf0 drivers/usb/core/devio.c:2304
 usbdev_do_ioctl+0x13e5/0x1e40 drivers/usb/core/devio.c:2660
 usbdev_ioctl+0x1e/0x30 drivers/usb/core/devio.c:2720
 do_vfs_ioctl+0x742/0x1720 fs/ioctl.c:47
 ksys_ioctl fs/ioctl.c:742 [inline]
 __do_sys_ioctl fs/ioctl.c:749 [inline]
 __se_sys_ioctl fs/ioctl.c:747 [inline]
 __x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace b9e4f40349231d8b ]---
RIP: 0010:__device_attach+0xb4/0x490 drivers/base/dd.c:909
Code: 5c 24 68 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 7d 04 fd fe 4c 8b 2b 49 8d 9d c8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 51 03 00 00 0f b6 1b 89 de 83 e6 01 45
RSP: 0018:ffff8881eb4af9c0 EFLAGS: 00010202
RAX: 0000000000000019 RBX: 00000000000000c8 RCX: ffffffff84502cb5
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881eb4af940
RBP: ffff8881eb4afa90 R08: dffffc0000000000 R09: ffffed103d695f29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881eb171030
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f4e9555a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e95538c98 CR3: 00000001eba18000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	5c                   	pop    %rsp
   1:	24 68                	and    $0x68,%al
   3:	48 89 d8             	mov    %rbx,%rax
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
   f:	74 08                	je     0x19
  11:	48 89 df             	mov    %rbx,%rdi
  14:	e8 7d 04 fd fe       	call   0xfefd0496
  19:	4c 8b 2b             	mov    (%rbx),%r13
  1c:	49 8d 9d c8 00 00 00 	lea    0xc8(%r13),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 51 03 00 00    	jne    0x388
  37:	0f b6 1b             	movzbl (%rbx),%ebx
  3a:	89 de                	mov    %ebx,%esi
  3c:	83 e6 01             	and    $0x1,%esi
  3f:	45                   	rex.RB