------------[ cut here ]------------
WARNING: CPU: 1 PID: 9394 at fs/udf/inode.c:1933 __udf_add_aext+0x526/0x6c0 fs/udf/inode.c:1933
Modules linked in:
CPU: 1 PID: 9394 Comm: syz.6.1153 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__udf_add_aext+0x526/0x6c0 fs/udf/inode.c:1933
Code: 4c 89 e6 e8 8c 91 0a ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 16 3e 9d fe 0f 0b e9 1b fc ff ff e8 0a 3e 9d fe <0f> 0b e9 6f fd ff ff e8 fe 3d 9d fe 0f 0b e9 5b fd ff ff 44 89 e9
RSP: 0018:ffffc90003527580 EFLAGS: 00010283
RAX: ffffffff82e39506 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9001c3e7000 RSI: 0000000000003c90 RDI: 0000000000003c91
RBP: 0000000000000008 R08: ffff88802cb75940 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000200
R13: ffff888071edd4a0 R14: ffffc90003527750 R15: 0000000000000208
FS:  00007efc10b666c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f06528964ac CR3: 000000007d066000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_table_free_blocks fs/udf/balloc.c:500 [inline]
 udf_free_blocks+0x12e7/0x16c0 fs/udf/balloc.c:686
 extent_trunc+0x357/0x440 fs/udf/truncate.c:56
 udf_truncate_extents+0x590/0xe30 fs/udf/truncate.c:256
 udf_setsize+0xd7a/0x1090 fs/udf/inode.c:1174
 udf_setattr+0x404/0x560 fs/udf/file.c:279
 notify_change+0xc74/0xf40 fs/attr.c:499
 do_truncate+0x197/0x220 fs/open.c:65
 vfs_truncate+0x262/0x2f0 fs/open.c:111
 do_sys_truncate+0xdc/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7efc0fd8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efc10b66038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007efc0ffe6090 RCX: 00007efc0fd8efc9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000013c0
RBP: 00007efc0fe11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc0ffe6128 R14: 00007efc0ffe6090 R15: 00007ffe46ec1f58
 </TASK>