UDF-fs: error (device loop5): udf_fiiter_advance_blk: extent after position 0 not allocated in directory (ino 1408)
------------[ cut here ]------------
ret
WARNING: fs/udf/namei.c:214 at udf_expand_dir_adinicb+0xc87/0xed0 fs/udf/namei.c:214, CPU#1: syz.5.276/7048
Modules linked in:
CPU: 1 UID: 0 PID: 7048 Comm: syz.5.276 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026
RIP: 0010:udf_expand_dir_adinicb+0xc87/0xed0 fs/udf/namei.c:214
Code: b0 d3 fe 48 8b 4c 24 38 48 8b 54 24 28 e9 58 fa ff ff e8 5c 22 64 fe 4c 89 ff e8 14 8a fd fe e9 1b f8 ff ff e8 4a 22 64 fe 90 <0f> 0b 90 e9 e7 fd ff ff bb 8b ff ff ff e9 f4 f5 ff ff bb f4 ff ff
RSP: 0018:ffffc9000359f420 EFLAGS: 00010287
RAX: 000000000000bdd2 RBX: 00000000ffffff8b RCX: ffffc90005d89000
RDX: 0000000000080000 RSI: ffffffff83a61936 RDI: ffff888027421f00
RBP: ffffc9000359f698 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffff8b R11: 0000000000000000 R12: 00000000ffffff8b
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888075722380
FS:  00007fe17d5316c0(0000) GS:ffff888123edf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000340 CR3: 000000007c62d000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_fiiter_add_entry+0xcb1/0x10c0 fs/udf/namei.c:262
 udf_rename+0xaf1/0xdc0 fs/udf/namei.c:843
 vfs_rename+0xc9f/0x2000 fs/namei.c:6074
 filename_renameat2+0x754/0xa60 fs/namei.c:6192
 __do_sys_rename fs/namei.c:6236 [inline]
 __se_sys_rename fs/namei.c:6232 [inline]
 __x64_sys_rename+0x81/0xb0 fs/namei.c:6232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe17c59de99
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:00007fe17d531028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fe17c825fa0 RCX: 00007fe17c59de99
RDX: 0000000000000000 RSI: 0000200000000f40 RDI: 00002000000003c0
RBP: 00007fe17c633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe17c826038 R14: 00007fe17c825fa0 R15: 00007ffc7202e818
 </TASK>