overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
BUG: unable to handle page fault for address: fffffbfff36bf672
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffe4067 P4D 23ffe4067 PUD 23ffe3067 PMD 13fff1067 PTE 0
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 13102 Comm: syz.9.1905 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ovl_seek_cursor fs/overlayfs/readdir.c:471 [inline]
RIP: 0010:ovl_iterate_merged fs/overlayfs/readdir.c:851 [inline]
RIP: 0010:ovl_iterate+0x985/0x1120 fs/overlayfs/readdir.c:906
Code: ea 03 80 3c 02 00 0f 85 5a 07 00 00 48 8d 41 10 4d 8b 67 08 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 eb 06 00 00 48 8b 59 10 48 8b 44 24 08 48 39 c3
RSP: 0018:ffffc90004fbfd20 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: ffff88803fb96af8 RCX: ffffffff9b5fb380
RDX: 1ffffffff36bf672 RSI: ffffffff834741d4 RDI: 0000000000000007
RBP: ffff88803fb96af8 R08: 0000000000000007 R09: fffffffffffff000
R10: ffffffff9b5fb380 R11: ffff88802612e6b0 R12: 0000000000000000
R13: ffff88803fb96b18 R14: ffff88803fb96c00 R15: ffffc90004fbfe70
FS:  00007f0e068876c0(0000) GS:ffff8881248f6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff36bf672 CR3: 00000000223d1000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 wrap_directory_iterator+0xa2/0xe0 fs/readdir.c:65
 iterate_dir+0x296/0xaf0 fs/readdir.c:108
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents fs/readdir.c:312 [inline]
 __x64_sys_getdents+0x13c/0x2b0 fs/readdir.c:312
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e0598f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0e06887038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f0e05be5fa0 RCX: 00007f0e0598f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f0e05a13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e05be6038 R14: 00007f0e05be5fa0 R15: 00007ffd97f54508
 </TASK>
Modules linked in:
CR2: fffffbfff36bf672
---[ end trace 0000000000000000 ]---
RIP: 0010:ovl_seek_cursor fs/overlayfs/readdir.c:471 [inline]
RIP: 0010:ovl_iterate_merged fs/overlayfs/readdir.c:851 [inline]
RIP: 0010:ovl_iterate+0x985/0x1120 fs/overlayfs/readdir.c:906
Code: ea 03 80 3c 02 00 0f 85 5a 07 00 00 48 8d 41 10 4d 8b 67 08 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 eb 06 00 00 48 8b 59 10 48 8b 44 24 08 48 39 c3
RSP: 0018:ffffc90004fbfd20 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: ffff88803fb96af8 RCX: ffffffff9b5fb380
RDX: 1ffffffff36bf672 RSI: ffffffff834741d4 RDI: 0000000000000007
RBP: ffff88803fb96af8 R08: 0000000000000007 R09: fffffffffffff000
R10: ffffffff9b5fb380 R11: ffff88802612e6b0 R12: 0000000000000000
R13: ffff88803fb96b18 R14: ffff88803fb96c00 R15: ffffc90004fbfe70
FS:  00007f0e068876c0(0000) GS:ffff8881248f6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff36bf672 CR3: 00000000223d1000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	03 80 3c 02 00 0f    	add    0xf00023c(%rax),%eax
   6:	85 5a 07             	test   %ebx,0x7(%rdx)
   9:	00 00                	add    %al,(%rax)
   b:	48 8d 41 10          	lea    0x10(%rcx),%rax
   f:	4d 8b 67 08          	mov    0x8(%r15),%r12
  13:	48 89 c2             	mov    %rax,%rdx
  16:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  1b:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  22:	fc ff df
  25:	48 c1 ea 03          	shr    $0x3,%rdx
* 29:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2d:	0f 85 eb 06 00 00    	jne    0x71e
  33:	48 8b 59 10          	mov    0x10(%rcx),%rbx
  37:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  3c:	48 39 c3             	cmp    %rax,%rbx