loop0: detected capacity change from 0 to 128
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.0.1347/20303
Modules linked in:
CPU: 0 UID: 0 PID: 20303 Comm: syz.0.1347 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:udf_truncate_extents+0xd92/0xf00 fs/udf/truncate.c:224
Code: 31 03 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 e9 45 c4 dc 07 cc e8 df 1a 78 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:ffffc900059a78a0 EFLAGS: 00010283
RAX: ffffffff834c3f21 RBX: 1ffff110081295ae RCX: 0000000000080000
RDX: ffffc9000e141000 RSI: 000000000000067e RDI: 000000000000067f
RBP: ffffc900059a7a78 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007fad057166c0(0000) GS:ffff888126329000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33b23ffc CR3: 0000000060174000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 udf_write_failed+0x18b/0x1c0 fs/udf/inode.c:180
 udf_write_begin+0x217/0x270 fs/udf/inode.c:264
 generic_perform_write+0x2af/0x8b0 mm/filemap.c:4324
 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:112
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x629/0xba0 fs/read_write.c:688
 ksys_write+0x156/0x270 fs/read_write.c:740
 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: 0033:0x7fad074bc819
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:00007fad05716028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fad07735fa0 RCX: 00007fad074bc819
RDX: 0000000000001006 RSI: 00002000000022c0 RDI: 0000000000000004
RBP: 00007fad07552c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fad07736038 R14: 00007fad07735fa0 R15: 00007ffd08067a08
 </TASK>