and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
/dev/sg0: Can't lookup blockdev
Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
CPU: 1 UID: 0 PID: 5928 Comm: syz.0.1 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:dummy_enable+0x1d4/0x960 drivers/usb/gadget/udc/dummy_hcd.c:545
Code: 02 00 0f 85 f2 06 00 00 4d 8b b4 24 90 06 00 00 e8 91 c0 3b fa 49 8d 7e 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 66 06 00 00 45 8b 76 60 31 ff
RSP: 0018:ffffc900070afbc0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffff8880244300e0 RCX: ffffc9002813f000
RDX: 000000000000000c RSI: ffffffff87cdf06f RDI: 0000000000000060
RBP: ffff8880535894c9 R08: 0000000000000005 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888024430c00
R13: 0000000000000003 R14: 0000000000000000 R15: ffffffff8cb7c820
FS:  0000000000000000(0000) GS:ffff888096cdf000(0063) knlGS:00000000f5028b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000346f1ff8 CR3: 000000006d02f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 usb_ep_enable+0x156/0x490 drivers/usb/gadget/udc/core.c:131
 ep_config drivers/usb/gadget/legacy/inode.c:799 [inline]
 ep_write_iter+0x979/0xbc0 drivers/usb/gadget/legacy/inode.c:681
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xe7/0x970 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf709efec
Code: Unable to access opcode bytes at 0xf709efc2.
RSP: 002b:00000000f502850c EFLAGS: 00000292 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00000000800005c0
RDX: 0000000000000012 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dummy_enable+0x1d4/0x960 drivers/usb/gadget/udc/dummy_hcd.c:545
Code: 02 00 0f 85 f2 06 00 00 4d 8b b4 24 90 06 00 00 e8 91 c0 3b fa 49 8d 7e 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 66 06 00 00 45 8b 76 60 31 ff
RSP: 0018:ffffc900070afbc0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffff8880244300e0 RCX: ffffc9002813f000
RDX: 000000000000000c RSI: ffffffff87cdf06f RDI: 0000000000000060
RBP: ffff8880535894c9 R08: 0000000000000005 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888024430c00
R13: 0000000000000003 R14: 0000000000000000 R15: ffffffff8cb7c820
FS:  0000000000000000(0000) GS:ffff888096cdf000(0063) knlGS:00000000f5028b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f709f000 CR3: 000000006d02f000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	02 00                	add    (%rax),%al
   2:	0f 85 f2 06 00 00    	jne    0x6fa
   8:	4d 8b b4 24 90 06 00 	mov    0x690(%r12),%r14
   f:	00
  10:	e8 91 c0 3b fa       	call   0xfa3bc0a6
  15:	49 8d 7e 60          	lea    0x60(%r14),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 08                	je     0x3a
  32:	3c 03                	cmp    $0x3,%al
  34:	0f 8e 66 06 00 00    	jle    0x6a0
  3a:	45 8b 76 60          	mov    0x60(%r14),%r14d
  3e:	31 ff                	xor    %edi,%edi