------------[ cut here ]------------
within_last_ext && elen > ((loff_t)offset + 1) << inode->i_blkbits
WARNING: fs/udf/inode.c:683 at udf_setsize+0xde9/0x10b0, CPU#0: syz.2.1857/10417
Modules linked in:
CPU: 0 UID: 0 PID: 10417 Comm: syz.2.1857 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+0xde9/0x10b0
Code: 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 c5 30 6f fe 45 89 f4 e9 2a fe ff ff e8 b8 30 6f fe 90 <0f> 0b 90 e9 90 f7 ff ff 44 89 f1 80 e1 07 38 c1 0f 8c ab f2 ff ff
RSP: 0018:ffffc900088ffaa0 EFLAGS: 00010283
RAX: ffffffff83567388 RBX: ffff888116b73528 RCX: 0000000000080000
RDX: ffffc90023707000 RSI: 000000000000046f RDI: 0000000000000470
RBP: ffffc900088ffc00 R08: ffff888116b734eb R09: 1ffff11022d6e69d
R10: dffffc0000000000 R11: ffffed1022d6e69e R12: 0000000000000001
R13: 1ffff9200111ff68 R14: 0000000000000c00 R15: 0000000000001000
FS:  00007f242448c6c0(0000) GS:ffff88818dc93000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000040 CR3: 0000000112cbc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 udf_setattr+0x3a1/0x5a0
 notify_change+0xc1a/0xf40
 do_truncate+0x1c2/0x250
 do_ftruncate+0x490/0x540
 __x64_sys_ftruncate+0x8f/0xe0
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f242359cdd9
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:00007f242448c028 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f2423816180 RCX: 00007f242359cdd9
RDX: 0000000000000000 RSI: 0000000000000a75 RDI: 0000000000000004
RBP: 00007f2423632d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2423816218 R14: 00007f2423816180 R15: 00007ffd5bc71698
 </TASK>
