------------[ cut here ]------------
WARNING: CPU: 1 PID: 4569 at fs/udf/udfdecl.h:127 udf_updated_lvid fs/udf/udfdecl.h:125 [inline]
WARNING: CPU: 1 PID: 4569 at fs/udf/udfdecl.h:127 udf_add_free_space fs/udf/balloc.c:137 [inline]
WARNING: CPU: 1 PID: 4569 at fs/udf/udfdecl.h:127 udf_bitmap_free_blocks fs/udf/balloc.c:183 [inline]
WARNING: CPU: 1 PID: 4569 at fs/udf/udfdecl.h:127 udf_free_blocks+0x82e/0x1760 fs/udf/balloc.c:683
Modules linked in:
CPU: 0 PID: 4569 Comm: syz.0.56 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:125 [inline]
RIP: 0010:udf_add_free_space fs/udf/balloc.c:137 [inline]
RIP: 0010:udf_bitmap_free_blocks fs/udf/balloc.c:183 [inline]
RIP: 0010:udf_free_blocks+0x82e/0x1760 fs/udf/balloc.c:683
Code: 03 00 00 48 8b 84 24 c0 00 00 00 48 01 44 24 28 e8 b7 10 b6 fe 48 8b 84 24 d0 00 00 00 41 89 c4 e9 0f fb ff ff e8 a2 10 b6 fe <0f> 0b e9 70 ff ff ff 48 8b 4c 24 68 80 e1 07 38 c1 0f 8c 11 fb ff
RSP: 0000:ffffc900034afa40 EFLAGS: 00010293
RAX: ffffffff82c1bb6e RBX: 00000000aaaaaaaa RCX: ffff888026f81dc0
RDX: 0000000000000000 RSI: 00000000aaaaaaaa RDI: 0000000000000000
RBP: ffffc900034afc50 R08: dffffc0000000000 R09: ffffed100a4dfa05
R10: ffffed100a4dfa05 R11: 1ffff1100a4dfa04 R12: dffffc0000000000
R13: ffff888061bec000 R14: ffff88805e63cb08 R15: ffff88805458901f
FS:  0000555587c26500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558ad859f950 CR3: 0000000020527000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_discard_prealloc+0x414/0x600 fs/udf/truncate.c:151
 udf_release_file+0xbb/0x120 fs/udf/file.c:235
 __fput+0x234/0x930 fs/file_table.c:311
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f45604fa749
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:00007fff2f8448f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f4560752da0 RCX: 00007f45604fa749
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f4560752da0 R08: 0000000000000224 R09: 0000001e2f844bef
R10: 00007f4560752cb0 R11: 0000000000000246 R12: 00000000000156e9
R13: 00007f4560751090 R14: ffffffffffffffff R15: 00007fff2f844a10
 </TASK>