loop1: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: error (device loop1): udf_fiiter_advance_blk: extent after position 0 not allocated in directory (ino 1408)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7406 at fs/udf/namei.c:214 udf_expand_dir_adinicb fs/udf/namei.c:214 [inline]
WARNING: CPU: 0 PID: 7406 at fs/udf/namei.c:214 udf_fiiter_add_entry+0x183e/0x1e10 fs/udf/namei.c:262
Modules linked in:
CPU: 0 UID: 0 PID: 7406 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:udf_expand_dir_adinicb fs/udf/namei.c:214 [inline]
RIP: 0010:udf_fiiter_add_entry+0x183e/0x1e10 fs/udf/namei.c:262
Code: 44 89 f1 41 d3 ef 41 01 df 44 89 7c 24 20 48 8b 5c 24 10 e9 f0 fb ff ff e8 ff bc 8b fe 89 d8 e9 a8 fe ff ff e8 f3 bc 8b fe 90 <0f> 0b 90 e9 1e f9 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 93 e8 ff ff
RSP: 0018:ffffc9000d0d7320 EFLAGS: 00010287
RAX: ffffffff83315b7d RBX: 00000000ffffff8b RCX: 0000000000080000
RDX: ffffc90005da3000 RSI: 000000000000257d RDI: 000000000000257e
RBP: ffffc9000d0d7730 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100b1a0110 R12: dffffc0000000000
R13: 1ffff92001a1ae88 R14: ffff88803d9f77c8 R15: 0000000000000200
FS:  00007fbc836de6c0(0000) GS:ffff888127020000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc8369bf98 CR3: 000000004f8ae000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 udf_rename+0x69b/0xcd0 fs/udf/namei.c:843
 vfs_rename+0xb34/0xe80 fs/namei.c:5216
 do_renameat2+0x6a2/0xa50 fs/namei.c:5364
 __do_sys_rename fs/namei.c:5411 [inline]
 __se_sys_rename fs/namei.c:5409 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc8547eec9
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:00007fbc836de038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fbc856d5fa0 RCX: 00007fbc8547eec9
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000040
RBP: 00007fbc85501f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbc856d6038 R14: 00007fbc856d5fa0 R15: 00007ffe341e0108
 </TASK>