loop0: detected capacity change from 0 to 256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: warning (device loop0): udf_truncate_tail_extent: Too long extent after EOF in inode 65: i_size: 0 lbcount: 4096 extent 22+4096
tipc: Started in network mode
tipc: Node identity 7f000001, cluster identity 4711
tipc: Enabled bearer <udp:syz1>, priority 10
------------[ cut here ]------------
iinfo->i_lenAlloc != epos->offset - udf_file_entry_alloc_offset(inode)
WARNING: fs/udf/inode.c:2082 at __udf_add_aext+0x547/0x6e0 fs/udf/inode.c:2081, CPU#0: syz.0.0/5332
Modules linked in:
CPU: 0 UID: 0 PID: 5332 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_add_aext+0x547/0x6e0 fs/udf/inode.c:2081
Code: 5f 5d e9 4c dd 52 08 cc e8 b6 3a 6c fe 90 0f 0b 90 e9 0d fc ff ff e8 a8 3a 6c fe 90 0f 0b 90 e9 5f fd ff ff e8 9a 3a 6c fe 90 <0f> 0b 90 e9 49 fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c f0
RSP: 0018:ffffc9000f6a7800 EFLAGS: 00010287
RAX: ffffffff83598cb6 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9000ee6a000 RSI: 00000000000004cb RDI: 00000000000004cc
RBP: 0000000000000010 R08: ffff8880367b4a80 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000000b0
R13: 0000000000000000 R14: ffffc9000f6a7aa0 R15: 0000000000000000
FS:  00007f73f43246c0(0000) GS:ffff88808c894000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055abe0e2b168 CR3: 000000001cfe6000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2143 [inline]
 udf_do_extend_file+0x5a8/0x11e0 fs/udf/inode.c:550
 udf_extend_file fs/udf/inode.c:711 [inline]
 udf_setsize+0xbf3/0x10b0 fs/udf/inode.c:1298
 udf_setattr+0x3a1/0x5a0 fs/udf/file.c:245
 notify_change+0xc1a/0xf40 fs/attr.c:556
 do_truncate+0x1c2/0x250 fs/open.c:68
 vfs_truncate+0x4b4/0x540 fs/open.c:118
 ksys_truncate+0xf3/0x1c0 fs/open.c:142
 __do_sys_truncate fs/open.c:154 [inline]
 __se_sys_truncate fs/open.c:152 [inline]
 __x64_sys_truncate+0x5b/0x70 fs/open.c:152
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f73f339ce59
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:00007f73f4323fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f73f3615fa0 RCX: 00007f73f339ce59
RDX: 0000000000000000 RSI: 0000000003000000 RDI: 0000200000000900
RBP: 00007f73f3432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f73f3616038 R14: 00007f73f3615fa0 R15: 00007ffc0c0ce758
 </TASK>