BUG: unable to handle page fault for address: fffffffffff8d0a6
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD ce8f067 P4D ce8f067 PUD ce91067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 17390 Comm: syz-executor.5 Not tainted 6.1.0-rc8-syzkaller-00003-gbce9332220bd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:ovl_copy_xattr+0xc0/0x820 fs/overlayfs/copy_up.c:56
Code: 0a e8 94 e7 92 fe e9 f4 06 00 00 48 8b 44 24 38 48 8d 58 68 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f0 0b e7 fe <48> 8b 1b 48 83 c3 02 48 89 d8 48 c1 e8 03 42 8a 04 20 84 c0 0f 85
RSP: 0018:ffffc90004bef450 EFLAGS: 00010246
RAX: 1fffffffffff1a14 RBX: fffffffffff8d0a6 RCX: 0000000000000002
RDX: ffff88806fe00000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff888075ec3490 R08: ffffffff82f7b902 R09: ffffed100ebeeb03
R10: ffffed100ebeeb03 R11: 1ffff1100ebeeb02 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffc90004bef9e0 R15: ffffc90004bef9e8
FS:  00007fc6dbbc6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffff8d0a6 CR3: 000000005c931000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ovl_copy_up_metadata+0x1c1/0xba0 fs/overlayfs/copy_up.c:578
 ovl_copy_up_workdir fs/overlayfs/copy_up.c:695 [inline]
 ovl_do_copy_up fs/overlayfs/copy_up.c:841 [inline]
 ovl_copy_up_one fs/overlayfs/copy_up.c:1007 [inline]
 ovl_copy_up_flags+0x1679/0x1f60 fs/overlayfs/copy_up.c:1053
 ovl_nlink_start+0x20c/0x580 fs/overlayfs/util.c:910
 ovl_do_remove+0x23f/0x780 fs/overlayfs/dir.c:905
 vfs_unlink+0x357/0x5f0 fs/namei.c:4252
 do_unlinkat+0x484/0x940 fs/namei.c:4320
 __do_sys_unlink fs/namei.c:4368 [inline]
 __se_sys_unlink fs/namei.c:4366 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4366
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc6dae8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc6dbbc6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007fc6dafac120 RCX: 00007fc6dae8c0d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100
RBP: 00007fc6daee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffea9d7d78f R14: 00007fc6dbbc6300 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: fffffffffff8d0a6
---[ end trace 0000000000000000 ]---
RIP: 0010:ovl_copy_xattr+0xc0/0x820 fs/overlayfs/copy_up.c:56
Code: 0a e8 94 e7 92 fe e9 f4 06 00 00 48 8b 44 24 38 48 8d 58 68 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f0 0b e7 fe <48> 8b 1b 48 83 c3 02 48 89 d8 48 c1 e8 03 42 8a 04 20 84 c0 0f 85
RSP: 0018:ffffc90004bef450 EFLAGS: 00010246
RAX: 1fffffffffff1a14 RBX: fffffffffff8d0a6 RCX: 0000000000000002
RDX: ffff88806fe00000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff888075ec3490 R08: ffffffff82f7b902 R09: ffffed100ebeeb03
R10: ffffed100ebeeb03 R11: 1ffff1100ebeeb02 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffc90004bef9e0 R15: ffffc90004bef9e8
FS:  00007fc6dbbc6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffff8d0a6 CR3: 000000005c931000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 94 e7 92 fe       	callq  0xfe92e799
   5:	e9 f4 06 00 00       	jmpq   0x6fe
   a:	48 8b 44 24 38       	mov    0x38(%rsp),%rax
   f:	48 8d 58 68          	lea    0x68(%rax),%rbx
  13:	48 89 d8             	mov    %rbx,%rax
  16:	48 c1 e8 03          	shr    $0x3,%rax
  1a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  1f:	74 08                	je     0x29
  21:	48 89 df             	mov    %rbx,%rdi
  24:	e8 f0 0b e7 fe       	callq  0xfee70c19
* 29:	48 8b 1b             	mov    (%rbx),%rbx <-- trapping instruction
  2c:	48 83 c3 02          	add    $0x2,%rbx
  30:	48 89 d8             	mov    %rbx,%rax
  33:	48 c1 e8 03          	shr    $0x3,%rax
  37:	42 8a 04 20          	mov    (%rax,%r12,1),%al
  3b:	84 c0                	test   %al,%al
  3d:	0f                   	.byte 0xf
  3e:	85                   	.byte 0x85