Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 12581 Comm: syz.0.1662 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:dummy_udc_start+0xd0/0x1f0
Code: 41 83 ff 03 74 18 41 83 ff 05 0f 85 93 00 00 00 e8 b5 50 0f fa eb 0c e8 ae 50 0f fa eb 05 e8 a7 50 0f fa 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 11 13 7d fa 4d 8b 36 4c 89 f7 e8
RSP: 0018:ffffc9000b637830 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888179224050 RCX: ffff888108f83c00
RDX: 0000000000000000 RSI: ffffffff8f9f9d60 RDI: 0000000000000002
RBP: ffff888109235000 R08: ffff888108f83c00 R09: 0000000000000004
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  00007f70946fd6c0(0000) GS:ffff88818d94d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f70946dcd58 CR3: 000000001f26c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 gadget_bind_driver+0x3a8/0x9e0
 really_probe+0x254/0xae0
 __driver_probe_device+0x1e8/0x360
 driver_probe_device+0x4f/0x240
 __driver_attach+0x339/0x600
 bus_for_each_dev+0x23b/0x2c0
 bus_add_driver+0x345/0x670
 driver_register+0x23a/0x320
 usb_gadget_register_driver_owner+0xf9/0x270
 raw_ioctl+0x1541/0x41c0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f709379dcab
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f70946faf00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f709379dcab
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 00007f70946fbfd0 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000200000002900 R14: 0000000000000002 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dummy_udc_start+0xd0/0x1f0
Code: 41 83 ff 03 74 18 41 83 ff 05 0f 85 93 00 00 00 e8 b5 50 0f fa eb 0c e8 ae 50 0f fa eb 05 e8 a7 50 0f fa 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 11 13 7d fa 4d 8b 36 4c 89 f7 e8
RSP: 0018:ffffc9000b637830 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888179224050 RCX: ffff888108f83c00
RDX: 0000000000000000 RSI: ffffffff8f9f9d60 RDI: 0000000000000002
RBP: ffff888109235000 R08: ffff888108f83c00 R09: 0000000000000004
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  00007f70946fd6c0(0000) GS:ffff88818d94d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f708a3ff000 CR3: 000000001f26c000 CR4: 00000000000006f0
