UDF-fs: error (device loop0): 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 fs/udf/namei.c:214 [inline], CPU#0: syz.0.0/5326
WARNING: fs/udf/namei.c:214 at udf_fiiter_add_entry+0x1a78/0x20c0 fs/udf/namei.c:262, CPU#0: syz.0.0/5326
Modules linked in:
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:udf_expand_dir_adinicb fs/udf/namei.c:214 [inline]
RIP: 0010:udf_fiiter_add_entry+0x1a78/0x20c0 fs/udf/namei.c:262
Code: 00 00 e8 eb 36 6c fe 44 89 f1 41 d3 ec 41 01 dc 44 89 64 24 58 e9 ec fb ff ff e8 d3 36 6c fe e9 be fe ff ff e8 c9 36 6c fe 90 <0f> 0b 90 e9 b9 f8 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 81 e6 ff ff
RSP: 0018:ffffc90001687360 EFLAGS: 00010293
RAX: ffffffff83599a77 RBX: fffff520002d0e90 RCX: ffff888035ccca00
RDX: 0000000000000000 RSI: 00000000ffffff8b RDI: 0000000000000000
RBP: ffffc90001687770 R08: ffff888011eb188b R09: 1ffff110023d6311
R10: dffffc0000000000 R11: ffffed10023d6312 R12: f8f8f8f8f8f8f8f8
R13: ffff888047ee4710 R14: 00000000ffffff8b R15: ffffc900016879c0
FS:  00007f30794206c0(0000) GS:ffff88808c881000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561428aa2660 CR3: 0000000011c8b000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_rename+0x7bf/0xdf0 fs/udf/namei.c:843
 vfs_rename+0xa96/0xeb0 fs/namei.c:6054
 filename_renameat2+0x539/0x9c0 fs/namei.c:6172
 __do_sys_rename fs/namei.c:6216 [inline]
 __se_sys_rename+0x55/0x2c0 fs/namei.c:6212
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f307859ce59
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:00007f307941ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f3078815fa0 RCX: 00007f307859ce59
RDX: 0000000000000000 RSI: 0000200000000f40 RDI: 00002000000003c0
RBP: 00007f3078632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3078816038 R14: 00007f3078815fa0 R15: 00007ffcae8c5868
 </TASK>