loop0: detected capacity change from 0 to 128
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
loop0: detected capacity change from 128 to 127
UDF-fs: error (device loop0): udf_bitmap_new_block: bitmap for partition 0 corrupted (block 264 marked as free, partition length is 40)
------------[ cut here ]------------
byte_offset
WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd79/0xef0 fs/udf/truncate.c:224, CPU#0: syz.0.0/5313
Modules linked in:
CPU: 0 UID: 0 PID: 5313 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+0xd79/0xef0 fs/udf/truncate.c:224
Code: f0 29 10 48 3b 84 24 80 01 00 00 75 7a 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 8e 6c 79 08 cc e8 28 c5 5f fe 90 <0f> 0b 90 e9 67 ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c f3 f3 ff ff
RSP: 0018:ffffc9000ee37740 EFLAGS: 00010283
RAX: ffffffff83676f98 RBX: 00000020fdfffffe RCX: 0000000000100000
RDX: ffffc9000f6f9000 RSI: 000000000000a1a3 RDI: 000000000000a1a4
RBP: ffffc9000ee37918 R08: ffff88803fbd2580 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000001fe
R13: 1ffff11003e8480a R14: 0000000000000000 R15: 0000000000000000
FS:  00007f98e93ca6c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d64c1b000 CR3: 000000003714e000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_write_failed+0x168/0x1b0 fs/udf/inode.c:178
 udf_write_begin+0x215/0x270 fs/udf/inode.c:262
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 udf_file_write_iter+0x2e8/0x6c0 fs/udf/file.c:112
 do_iter_readv_writev+0x612/0x8c0 fs/read_write.c:-1
 vfs_writev+0x343/0x990 fs/read_write.c:1058
 do_pwritev fs/read_write.c:1154 [inline]
 __do_sys_pwritev2 fs/read_write.c:1212 [inline]
 __se_sys_pwritev2+0x177/0x2a0 fs/read_write.c:1203
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98e859e0d9
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:00007f98e93c9fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f98e8825fa0 RCX: 00007f98e859e0d9
RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000006
RBP: 00007f98e8635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000
R13: 00007f98e8826038 R14: 00007f98e8825fa0 R15: 00007ffd29fb1998
 </TASK>