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 ]------------
WARNING: CPU: 0 PID: 5928 at fs/udf/truncate.c:224 udf_truncate_extents+0xd65/0xed0 fs/udf/truncate.c:224
Modules linked in:
CPU: 0 PID: 5928 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:udf_truncate_extents+0xd65/0xed0 fs/udf/truncate.c:224
Code: 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 01 00 00 75 73 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 db d6 88 fe <0f> 0b e9 6d ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 0c f4 ff ff 4c
RSP: 0018:ffffc9000461f780 EFLAGS: 00010293
RAX: ffffffff82fe9b45 RBX: 000000000000000a RCX: ffff88802b16da00
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000
RBP: ffffc9000461f960 R08: ffff88802b16da00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000000a
R13: 1ffff1100d86c26f R14: 0000000000000000 R15: 0000000000000000
FS:  000055558bca9500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f76a182a000 CR3: 000000002f59f000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 udf_write_failed+0x163/0x1b0 fs/udf/inode.c:178
 udf_write_begin+0x21f/0x430 fs/udf/inode.c:264
 generic_perform_write+0x2fe/0x5c0 mm/filemap.c:4036
 __generic_file_write_iter+0x1ac/0x230 mm/filemap.c:4128
 udf_file_write_iter+0x2f0/0x6a0 fs/udf/file.c:111
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x747/0xc50 fs/read_write.c:860
 vfs_writev fs/read_write.c:933 [inline]
 do_writev+0x27f/0x480 fs/read_write.c:976
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fddcb39e0d9
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:00007ffd31e13728 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fddcb625fa0 RCX: 00007fddcb39e0d9
RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000004
RBP: 00007fddcb435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fddcb625fac R14: 00007fddcb625fa0 R15: 00007fddcb625fa0
 </TASK>