------------[ cut here ]------------
byte_offset
WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd8d/0xf00, CPU#1: syz.6.124/6892
Modules linked in:
CPU: 1 UID: 0 PID: 6892 Comm: syz.6.124 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:udf_truncate_extents+0xd8d/0xf00
Code: 5d c6 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 da 95 5b 08 cc e8 14 fe 6f fe 90 <0f> 0b 90 e9 64 ff ff ff 44 89 e9 80 e1 07 38 c1 0f 8c e0 f3 ff ff
RSP: 0018:ffffc90003cd77c0 EFLAGS: 00010293
RAX: ffffffff8355a2cc RBX: 1ffff11034693266 RCX: ffff88810bd7ba80
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000
RBP: ffffc90003cd7988 R08: ffff88810bd7ba80 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007f10773d56c0(0000) GS:ffff8882a9460000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe3fb771f8 CR3: 000000016b97e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 udf_write_failed+0x185/0x1c0
 udf_direct_IO+0x1c6/0x200
 generic_file_direct_write+0x1db/0x3e0
 __generic_file_write_iter+0x11d/0x230
 udf_file_write_iter+0x2ca/0x6b0
 do_iter_readv_writev+0x619/0x8c0
 vfs_writev+0x33c/0x990
 __se_sys_pwritev2+0x184/0x2a0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f107659c799
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:00007f10773d5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f1076815fa0 RCX: 00007f107659c799
RDX: 0000000000000002 RSI: 0000200000000400 RDI: 0000000000000008
RBP: 00007f1076632c99 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000009c00 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1076816038 R14: 00007f1076815fa0 R15: 00007ffd49ba8cd8
 </TASK>
