loop0: detected capacity change from 0 to 16
erofs (device loop0): mounted with root inode @ nid 36.
overlayfs: "xino" feature enabled using 3 upper inode bits.
Oops: general protection fault, probably for non-canonical address 0xfed1253af1292523: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0xf68949d789492918-0xf68949d78949291f]
CPU: 1 UID: 0 PID: 24805 Comm: syz.0.2414 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ovl_iterate_merged fs/overlayfs/readdir.c:857 [inline]
RIP: 0010:ovl_iterate+0x5f8/0x21b0 fs/overlayfs/readdir.c:907
Code: 8b 44 24 48 48 8d 50 14 48 89 54 24 60 48 c1 ea 03 48 89 54 24 50 48 c1 e8 03 48 89 44 24 78 4c 8d 6b 31 4d 89 ee 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 59 02 00 00 4c 8d 7b e8 41 80 7d 00 01
RSP: 0018:ffffc9000e5579c0 EFLAGS: 00010a03
RAX: 1ffff92001caafc4 RBX: f68949d7894928ec RCX: 0000000000080000
RDX: 1ffff92001caafc6 RSI: 000000000000189e RDI: 000000000000189f
RBP: ffffc9000e557d40 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed47b7 R12: dffffc0000000000
R13: f68949d78949291d R14: 1ed1293af1292523 R15: ffff8880223d6188
FS:  00007f3e7f7066c0(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e1bae2950 CR3: 0000000038b2a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 wrap_directory_iterator+0x99/0xe0 fs/readdir.c:65
 iterate_dir+0x3a5/0x580 fs/readdir.c:108
 __do_sys_getdents fs/readdir.c:327 [inline]
 __se_sys_getdents+0xf1/0x270 fs/readdir.c:312
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e814ac799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3e7f706028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f3e81725fa0 RCX: 00007f3e814ac799
RDX: 0000000020002078 RSI: 0000200000001fc0 RDI: 0000000000000005
RBP: 00007f3e81542c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3e81726038 R14: 00007f3e81725fa0 R15: 00007ffcb9271a58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ovl_iterate_merged fs/overlayfs/readdir.c:857 [inline]
RIP: 0010:ovl_iterate+0x5f8/0x21b0 fs/overlayfs/readdir.c:907
Code: 8b 44 24 48 48 8d 50 14 48 89 54 24 60 48 c1 ea 03 48 89 54 24 50 48 c1 e8 03 48 89 44 24 78 4c 8d 6b 31 4d 89 ee 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 59 02 00 00 4c 8d 7b e8 41 80 7d 00 01
RSP: 0018:ffffc9000e5579c0 EFLAGS: 00010a03
RAX: 1ffff92001caafc4 RBX: f68949d7894928ec RCX: 0000000000080000
RDX: 1ffff92001caafc6 RSI: 000000000000189e RDI: 000000000000189f
RBP: ffffc9000e557d40 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed47b7 R12: dffffc0000000000
R13: f68949d78949291d R14: 1ed1293af1292523 R15: ffff8880223d6188
FS:  00007f3e7f7066c0(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e1bae2950 CR3: 0000000038b2a000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	8b 44 24 48          	mov    0x48(%rsp),%eax
   4:	48 8d 50 14          	lea    0x14(%rax),%rdx
   8:	48 89 54 24 60       	mov    %rdx,0x60(%rsp)
   d:	48 c1 ea 03          	shr    $0x3,%rdx
  11:	48 89 54 24 50       	mov    %rdx,0x50(%rsp)
  16:	48 c1 e8 03          	shr    $0x3,%rax
  1a:	48 89 44 24 78       	mov    %rax,0x78(%rsp)
  1f:	4c 8d 6b 31          	lea    0x31(%rbx),%r13
  23:	4d 89 ee             	mov    %r13,%r14
  26:	49 c1 ee 03          	shr    $0x3,%r14
* 2a:	43 0f b6 04 26       	movzbl (%r14,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 59 02 00 00    	jne    0x290
  37:	4c 8d 7b e8          	lea    -0x18(%rbx),%r15
  3b:	41 80 7d 00 01       	cmpb   $0x1,0x0(%r13)