BUG: unable to handle page fault for address: fffffbc075d2ce06
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 6dfd0067 P4D 6dfd0067 PUD 6d1fc067 PMD 6d1fb067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 4268 Comm: syz-executor.6 Not tainted 6.1.0-rc4-next-20221111 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_desc+0x128/0x460
Code: e2 02 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 cd 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 d8 48 c1 e8 03 <0f> b6 0c 10 48 8d 43 07 48 89 c6 48 c1 ee 03 0f b6 14 16 48 89 de
RSP: 0000:ffff888042d8fbf8 EFLAGS: 00010216
RAX: 1fffffc075d2ce06 RBX: fffffe03ae967030 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006
RBP: ffff888042d8fcb8 R08: 0000000000000006 R09: 000000000000007f
R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff110085b1f7f
R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f
FS:  00007f7ca9059700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbc075d2ce06 CR3: 0000000041186000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 insn_get_code_seg_params+0xab/0x1b0
 insn_decode_from_regs+0x72/0x190
 fixup_umip_exception+0xcb/0x6d0
 exc_general_protection+0x161/0x220
 asm_exc_general_protection+0x26/0x30
RIP: 0033:0x7f7cabad3970
Code: 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 74 48 83 e0 f0 <66> 0f 74 00 66 0f 74 48 10 66 0f 74 50 20 66 0f 74 58 30 66 0f d7
RSP: 002b:00007f7ca90580b8 EFLAGS: 00010286
RAX: 9999999999999990 RBX: 00007f7ca9058174 RCX: 0000000000000999
RDX: 9999999999999999 RSI: 99999999999999a8 RDI: 9999999999999999
RBP: 00007f7ca9058110 R08: 0000000000000000 R09: 0000000000000000
R10: 9999999999999980 R11: 99999999999999a8 R12: 9999999999999999
R13: 0000000000000007 R14: 0000000000000000 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: fffffbc075d2ce06
---[ end trace 0000000000000000 ]---
RIP: 0010:get_desc+0x128/0x460
Code: e2 02 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 cd 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 d8 48 c1 e8 03 <0f> b6 0c 10 48 8d 43 07 48 89 c6 48 c1 ee 03 0f b6 14 16 48 89 de
RSP: 0000:ffff888042d8fbf8 EFLAGS: 00010216
RAX: 1fffffc075d2ce06 RBX: fffffe03ae967030 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006
RBP: ffff888042d8fcb8 R08: 0000000000000006 R09: 000000000000007f
R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff110085b1f7f
R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f
FS:  00007f7ca9059700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbc075d2ce06 CR3: 0000000041186000 CR4: 0000000000350ee0
loop1: detected capacity change from 0 to 264192
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop1: detected capacity change from 0 to 264192
loop4: detected capacity change from 0 to 264192
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop1: detected capacity change from 0 to 264192
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
----------------
Code disassembly (best guess):
   0:	e2 02                	loop   0x4
   2:	00 00                	add    %al,(%rax)
   4:	83 e0 07             	and    $0x7,%eax
   7:	38 c2                	cmp    %al,%dl
   9:	0f 9e c1             	setle  %cl
   c:	84 d2                	test   %dl,%dl
   e:	0f 95 c0             	setne  %al
  11:	84 c1                	test   %al,%cl
  13:	0f 85 cd 02 00 00    	jne    0x2e6
  19:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  20:	fc ff df
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 0c 10          	movzbl (%rax,%rdx,1),%ecx <-- trapping instruction
  2e:	48 8d 43 07          	lea    0x7(%rbx),%rax
  32:	48 89 c6             	mov    %rax,%rsi
  35:	48 c1 ee 03          	shr    $0x3,%rsi
  39:	0f b6 14 16          	movzbl (%rsi,%rdx,1),%edx
  3d:	48 89 de             	mov    %rbx,%rsi