loop0: detected capacity change from 0 to 128
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop0): udf_bitmap_new_block: bitmap for partition 0 corrupted (block 264 marked as free, partition length is 40)
capability: warning: `syz.0.0' uses deprecated v2 capabilities in a way that may be insecure
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+0xd92/0xf00 fs/udf/truncate.c:224, CPU#0: syz.0.0/5329
Modules linked in:
CPU: 0 UID: 0 PID: 5329 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: 5d 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 e9 45 b7 50 08 cc e8 ef 52 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:ffffc90007e3e640 EFLAGS: 00010287
RAX: ffffffff835b7321 RBX: 1ffff110025ce4d6 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000004c71 RDI: 0000000000004c72
RBP: ffffc90007e3e818 R08: ffff888000c70000 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000120 R15: 0000000000000120
FS:  00007fdc2a9f56c0(0000) GS:ffff88808c893000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc5cde5cf0 CR3: 00000000133cc000 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
 __kernel_write_iter+0x41e/0x880 fs/read_write.c:621
 __kernel_write+0x106/0x170 fs/read_write.c:641
 __dump_emit fs/coredump.c:1226 [inline]
 dump_emit+0x8e9/0xab0 fs/coredump.c:1264
 elf_core_dump+0x2e5d/0x3ad0 fs/binfmt_elf.c:2088
 coredump_write+0x12b0/0x19d0 fs/coredump.c:1053
 do_coredump fs/coredump.c:1132 [inline]
 vfs_coredump+0x3807/0x4530 fs/coredump.c:1206
 get_signal+0x1107/0x1330 kernel/signal.c:3022
 arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0xa9/0x680 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc2e59ce59
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:00007fdc2a9f4fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffe5 RBX: 00007fdc2e815fa0 RCX: 00007fdc2e59ce59
RDX: 0000000000000000 RSI: 00000020fdfffffe RDI: 0000200000000100
RBP: 00007fdc2e632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdc2e816038 R14: 00007fdc2e815fa0 R15: 00007ffc5cde61a8
 </TASK>