R10: 000000000000001c R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007efef0468fa0 R15: 00007ffed23837e8
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5039 at fs/overlayfs/copy_up.c:371 ovl_encode_real_fh+0x285/0x330 fs/overlayfs/copy_up.c:371
Modules linked in:
CPU: 1 PID: 5039 Comm: syz.0.18 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ovl_encode_real_fh+0x285/0x330 fs/overlayfs/copy_up.c:371
Code: 3c 48 89 d8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fd 68 b9 fe 0f 0b eb 10 e8 f4 68 b9 fe 0f 0b eb 07 e8 eb 68 b9 fe <0f> 0b 48 89 df e8 61 36 fd fe 48 c7 c3 fb ff ff ff eb a3 e8 23 d2
RSP: 0018:ffffc90002f7f6c0 EFLAGS: 00010293
RAX: ffffffff82be5b35 RBX: ffff888027697500 RCX: ffff88801a198000
RDX: 0000000000000000 RSI: 00000000000000ff RDI: 00000000000000ff
RBP: ffffc90002f7f770 R08: dffffc0000000000 R09: fffffbfff1ad2dd6
R10: fffffbfff1ad2dd6 R11: 1ffffffff1ad2dd5 R12: 00000000000000ff
R13: 0000000000000080 R14: 1ffff920005efedc R15: dffffc0000000000
FS:  00007efeef5216c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efef0f986c0 CR3: 00000000737da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ovl_get_index_name fs/overlayfs/namei.c:654 [inline]
 ovl_lookup_index+0x64/0x680 fs/overlayfs/namei.c:703
 ovl_lookup+0x10d1/0x16c0 fs/overlayfs/namei.c:1052
 __lookup_slow+0x27d/0x3d0 fs/namei.c:1663
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x319/0x460 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x169/0x440 fs/namei.c:2455
 filename_lookup+0x1e2/0x4f0 fs/namei.c:2484
 user_path_at_empty+0x40/0x190 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 path_setxattr+0xae/0x280 fs/xattr.c:625
 __do_sys_lsetxattr fs/xattr.c:653 [inline]
 __se_sys_lsetxattr fs/xattr.c:649 [inline]
 __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efef02a3849
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:00007efeef521058 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007efef0468fa0 RCX: 00007efef02a3849
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007efeef5210a0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000001c R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007efef0468fa0 R15: 00007ffed23837e8
 </TASK>