Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 20049 Comm: syz.0.3872 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_set_selfpowered+0xe4/0x1c0 drivers/usb/gadget/udc/dummy_hcd.c:888
Code: c1 ea 03 80 3c 02 00 0f 85 e6 00 00 00 48 8b 9b 90 06 00 00 e8 ed 7b 3b fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 b2 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc9000602f8c8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9002cd2c000
RDX: 0000000000000000 RSI: ffffffff87ce2cd3 RDI: ffff888022889290
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000003
R13: ffff888022888068 R14: ffff888022888c58 R15: ffff888025d04710
FS:  0000000000000000(0000) GS:ffff888096ce5000(0063) knlGS:00000000f53e6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000c33057e CR3: 000000004f9ac000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 usb_gadget_set_selfpowered+0x73/0x2b0 drivers/usb/gadget/udc/core.c:578
 composite_dev_prepare+0x254/0x420 drivers/usb/gadget/composite.c:2440
 configfs_composite_bind+0xd2/0x1960 drivers/usb/gadget/configfs.c:1701
 gadget_bind_driver+0x28c/0xbf0 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0x132/0x210 drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0x1b0/0x2e0 drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x302/0x4e0 fs/configfs/file.c:229
 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: 0023:0xf7f22fec
Code: Unable to access opcode bytes at 0xf7f22fc2.
RSP: 002b:00000000f53e650c EFLAGS: 00000292 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000080000380
RDX: 000000000000000b 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_set_selfpowered+0xe4/0x1c0 drivers/usb/gadget/udc/dummy_hcd.c:888
Code: c1 ea 03 80 3c 02 00 0f 85 e6 00 00 00 48 8b 9b 90 06 00 00 e8 ed 7b 3b fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 b2 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc9000602f8c8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9002cd2c000
RDX: 0000000000000000 RSI: ffffffff87ce2cd3 RDI: ffff888022889290
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000003
R13: ffff888022888068 R14: ffff888022888c58 R15: ffff888025d04710
FS:  0000000000000000(0000) GS:ffff888096ce5000(0063) knlGS:00000000f53e6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7f23000 CR3: 000000004f9ac000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	c1 ea 03             	shr    $0x3,%edx
   3:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   7:	0f 85 e6 00 00 00    	jne    0xf3
   d:	48 8b 9b 90 06 00 00 	mov    0x690(%rbx),%rbx
  14:	e8 ed 7b 3b fa       	call   0xfa3b7c06
  19:	48 89 da             	mov    %rbx,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 b2 00 00 00    	jne    0xe6
  34:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3b:	fc ff df
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b