------------[ cut here ]------------
within_last_ext && elen > ((loff_t)offset + 1) << inode->i_blkbits
WARNING: fs/udf/inode.c:692 at udf_setsize+0xcb2/0xf50, CPU#0: syz.0.850/12617
Modules linked in:
CPU: 0 UID: 0 PID: 12617 Comm: syz.0.850 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+0xcb2/0xf50
Code: 9a 2e 10 48 3b 84 24 c0 00 00 00 75 7a 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 7f 36 61 fe 90 <0f> 0b 90 e9 b8 f8 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c d6 f3 ff ff
RSP: 0018:ffffc90006867a20 EFLAGS: 00010293
RAX: ffffffff8366b581 RBX: ffff8881189fce88 RCX: ffff88810b37cb00
RDX: 0000000000000000 RSI: 0000000000000600 RDI: 0000000000000200
RBP: ffffc90006867b38 R08: ffff8881189fce4b R09: 1ffff1102313f9c9
R10: dffffc0000000000 R11: ffffed102313f9ca R12: 0000000000000200
R13: 0000000000000600 R14: 0000000000000009 R15: 0000000000000001
FS:  00007f2abd65a6c0(0000) GS:ffff88818d6cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2abd65ad58 CR3: 000000017620f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_setattr+0x412/0x6f0
 notify_change+0xbba/0xea0
 do_truncate+0x1c2/0x250
 vfs_truncate+0x4b4/0x540
 ksys_truncate+0xf3/0x1c0
 __x64_sys_truncate+0x5b/0x70
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2abc79e159
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:00007f2abd65a028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f2abca26090 RCX: 00007f2abc79e159
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 00002000000001c0
RBP: 00007f2abc83506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2abca26128 R14: 00007f2abca26090 R15: 00007ffdfb69c318
 </TASK>
