------------[ cut here ]------------
within_last_ext && elen > ((loff_t)offset + 1) << inode->i_blkbits
WARNING: fs/udf/inode.c:683 at udf_setsize+0xd56/0x1000, CPU#1: syz.0.4822/6470
Modules linked in:
CPU: 1 UID: 0 PID: 6470 Comm: syz.0.4822 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_setsize+0xd56/0x1000
Code: f0 e2 0f 48 3b 84 24 e0 00 00 00 75 7a 44 89 e8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 81 46 59 08 cc e8 4b f1 69 fe 90 <0f> 0b 90 e9 e6 f7 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 42 f3 ff ff
RSP: 0018:ffffc900067bfa20 EFLAGS: 00010287
RAX: ffffffff835c3fa5 RBX: ffff8881b4962818 RCX: 0000000000080000
RDX: ffffc90032c06000 RSI: 00000000000004c4 RDI: 00000000000004c5
RBP: ffffc900067bfb48 R08: ffff8881b49627db R09: 1ffff1103692c4fb
R10: dffffc0000000000 R11: ffffed103692c4fc R12: 0000000000002400
R13: 0000000000000001 R14: 000000000000000a R15: 0000000000003000
FS:  00007fd9a6bd56c0(0000) GS:ffff8882a922d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002000 CR3: 00000001a7aac000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 udf_setattr+0x39e/0x5a0
 notify_change+0xbba/0xea0
 do_truncate+0x1c2/0x250
 vfs_truncate+0x4b4/0x540
 ksys_truncate+0xf3/0x1c0
 __x64_sys_truncate+0x5b/0x70
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd9a899ce59
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:00007fd9a6bd5028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007fd9a8c16180 RCX: 00007fd9a899ce59
RDX: 0000000000000000 RSI: 00000000000042dc RDI: 00002000000001c0
RBP: 00007fd9a8a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd9a8c16218 R14: 00007fd9a8c16180 R15: 00007ffec0601b48
 </TASK>
