loop0: detected capacity change from 0 to 512
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
UDF-fs: Scanning with blocksize 2048 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)
------------[ cut here ]------------
byte_offset
WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd92/0xf00 fs/udf/truncate.c:224, CPU#0: syz.0.0/5334
Modules linked in:
CPU: 0 UID: 0 PID: 5334 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_truncate_extents+0xd92/0xf00 fs/udf/truncate.c:224
Code: 72 dd 0f 48 3b 84 24 80 01 00 00 75 7a 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 4f 48 6a fe 90 <0f> 0b 90 e9 64 ff ff ff 44 89 e9 80 e1 07 38 c1 0f 8c da f3 ff ff
RSP: 0018:ffffc90003a6f8a0 EFLAGS: 00010283
RAX: ffffffff835b7dc1 RBX: 1ffff11008e9473d RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 000000000000043c RDI: 000000000000043d
RBP: ffffc90003a6fa78 R08: ffff88803d3c0000 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000f02 R15: 0000000000000f02
FS:  00007fc62601a6c0(0000) GS:ffff88808c891000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6253d1960 CR3: 0000000013265000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_write_failed+0x185/0x1c0 fs/udf/inode.c:180
 udf_write_begin+0x215/0x270 fs/udf/inode.c:264
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4325
 udf_file_write_iter+0x2ca/0x6b0 fs/udf/file.c:112
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:688
 ksys_write+0x150/0x270 fs/read_write.c:740
 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: 0033:0x7fc62519ce59
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:00007fc626019fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc625416090 RCX: 00007fc62519ce59
RDX: 0000000000001006 RSI: 0000200000001440 RDI: 0000000000000008
RBP: 00007fc625232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc625416128 R14: 00007fc625416090 R15: 00007ffd86a752a8
 </TASK>