BUG: unable to handle page fault for address: ffffed101a2ce91a
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7ffcd067 P4D 7ffcd067 PUD 3fff5067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 2 PID: 9176 Comm: syz-executor.1 Not tainted 6.3.0-syzkaller-13091-g3c4aa4434377 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2039
Code: 22 ed 9e fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 a1 40 2c 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 88 03 00 00
RSP: 0000:ffffc9002406fa30 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff8880d16748b8 RCX: 0000000000000000
RDX: 1ffff1101a2ce91a RSI: 0000000000000002 RDI: ffff8880d16748d0
RBP: ffff88801c47a800 R08: 0000000000000000 R09: ffffffff8e79add7
R10: fffffbfff1cf35ba R11: 0000000000000000 R12: ffff888000e004c8
R13: ffff888062c78000 R14: ffff88801c47a8c0 R15: ffff88801ddf2b80
FS:  0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101a2ce91a CR3: 000000004b207000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_put_super+0x1bb/0x230 fs/udf/super.c:2326
 generic_shutdown_super+0x158/0x480 fs/super.c:500
 kill_block_super+0xa1/0x100 fs/super.c:1407
 deactivate_locked_super+0x98/0x160 fs/super.c:331
 deactivate_super+0xb1/0xd0 fs/super.c:362
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xad3/0x2960 kernel/exit.c:871
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
 get_signal+0x2315/0x25b0 kernel/signal.c:2874
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:301
RIP: 0033:0x7fc70be8c169
Code: Unable to access opcode bytes at 0x7fc70be8c13f.
RSP: 002b:00007fc70cc80118 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007fc70bfac050 RCX: 00007fc70be8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fc70bee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdb3991a4f R14: 00007fc70cc80300 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: ffffed101a2ce91a
---[ end trace 0000000000000000 ]---
RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2039
Code: 22 ed 9e fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 a1 40 2c 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 88 03 00 00
RSP: 0000:ffffc9002406fa30 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff8880d16748b8 RCX: 0000000000000000
RDX: 1ffff1101a2ce91a RSI: 0000000000000002 RDI: ffff8880d16748d0
RBP: ffff88801c47a800 R08: 0000000000000000 R09: ffffffff8e79add7
R10: fffffbfff1cf35ba R11: 0000000000000000 R12: ffff888000e004c8
R13: ffff888062c78000 R14: ffff88801c47a8c0 R15: ffff88801ddf2b80
FS:  0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101a2ce91a CR3: 000000004b207000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	4c 8d b5 c0 00 00 00 	lea    0xc0(%rbp),%r14
   7:	31 f6                	xor    %esi,%esi
   9:	4c 89 f7             	mov    %r14,%rdi
   c:	e8 a1 40 2c 07       	callq  0x72c40b2
  11:	48 8d 7b 18          	lea    0x18(%rbx),%rdi
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
* 26:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2a:	48 89 fa             	mov    %rdi,%rdx
  2d:	83 e2 07             	and    $0x7,%edx
  30:	38 d0                	cmp    %dl,%al
  32:	7f 08                	jg     0x3c
  34:	84 c0                	test   %al,%al
  36:	0f 85 88 03 00 00    	jne    0x3c4