loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000)
loop0: detected capacity change from 2048 to 2047
------------[ cut here ]------------
le32_to_cpu(aed->lengthAllocDescs) != epos->offset - sizeof(struct allocExtDesc)
WARNING: fs/udf/inode.c:2142 at __udf_add_aext+0x52b/0x6e0 fs/udf/inode.c:2141, CPU#0: syz.0.0/5345
Modules linked in:
CPU: 0 UID: 0 PID: 5345 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_add_aext+0x52b/0x6e0 fs/udf/inode.c:2141
Code: 81 c4 48 ff ff ff 4c 89 e6 e8 61 28 f3 fe 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 56 18 52 fe 90 <0f> 0b 90 e9 0d fc ff ff e8 48 18 52 fe 90 0f 0b 90 e9 5f fd ff ff
RSP: 0018:ffffc9000f91f798 EFLAGS: 00010283
RAX: ffffffff8377094a RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9000ef72000 RSI: 000000000001dc29 RDI: 000000000001dc2a
RBP: 1ffff92001f23f55 R08: ffff88803b092580 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000001e0
R13: 0000000000000000 R14: ffffc9000f91faa0 R15: ffffc9000f91faa8
FS:  00007f9c746846c0(0000) GS:ffff88808aa01000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562620731168 CR3: 000000004502a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x614/0x800 fs/udf/inode.c:2104
 udf_add_aext fs/udf/inode.c:2194 [inline]
 udf_do_extend_file+0x8a2/0x11e0 fs/udf/inode.c:599
 udf_extend_file fs/udf/inode.c:720 [inline]
 udf_setsize+0xb7d/0xf50 fs/udf/inode.c:1304
 udf_setattr+0x412/0x6f0 fs/udf/file.c:238
 notify_change+0xbba/0xea0 fs/attr.c:556
 do_truncate+0x1c2/0x250 fs/open.c:68
 vfs_truncate+0x4b7/0x540 fs/open.c:118
 ksys_truncate+0xf3/0x1c0 fs/open.c:142
 __do_sys_truncate fs/open.c:154 [inline]
 __se_sys_truncate fs/open.c:152 [inline]
 __x64_sys_truncate+0x5b/0x70 fs/open.c:152
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9c7379fb19
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:00007f9c74683fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f9c73a25fa0 RCX: 00007f9c7379fb19
RDX: 0000000000000000 RSI: 0000040000000000 RDI: 0000200000000340
RBP: 00007f9c73837af8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9c73a26038 R14: 00007f9c73a25fa0 R15: 00007ffdb9b8cec8
 </TASK>