------------[ cut here ]------------ WARNING: CPU: 0 PID: 3794 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:121 [inline] WARNING: CPU: 0 PID: 3794 at fs/udf/udfdecl.h:123 udf_bitmap_free_blocks fs/udf/balloc.c:178 [inline] WARNING: CPU: 0 PID: 3794 at fs/udf/udfdecl.h:123 udf_free_blocks+0xa63/0x23c0 fs/udf/balloc.c:678 Modules linked in: CPU: 0 PID: 3794 Comm: syz-executor.3 Not tainted 6.5.0-rc5-syzkaller-00296-gf8de32cc060b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_free_space fs/udf/balloc.c:121 [inline] RIP: 0010:udf_bitmap_free_blocks fs/udf/balloc.c:178 [inline] RIP: 0010:udf_free_blocks+0xa63/0x23c0 fs/udf/balloc.c:678 Code: 04 ff 49 39 de 0f 83 a0 02 00 00 4c 01 7c 24 20 e8 12 a2 8b fe 48 8b 84 24 88 00 00 00 41 89 c7 e9 54 fb ff ff e8 fd a1 8b fe <0f> 0b e9 72 ff ff ff 48 8b 4c 24 78 80 e1 07 38 c1 0f 8c 4a fb ff RSP: 0018:ffffc900323f7960 EFLAGS: 00010293 RAX: ffffffff83001633 RBX: 0000000010b802e1 RCX: ffff88802da45940 RDX: 0000000000000000 RSI: 0000000010b802e1 RDI: 0000000000000000 RBP: ffffc900323f7b70 R08: ffffffff8300159f R09: 1ffff11007b45406 R10: dffffc0000000000 R11: ffffed1007b45407 R12: ffff88808133fdc0 R13: dffffc0000000000 R14: ffff88808077301c R15: ffff88807cfc0628 FS: 00005555559f8480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555ce2978 CR3: 000000002871d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_discard_prealloc+0x53c/0x7a0 fs/udf/truncate.c:147 udf_release_file+0xb9/0x120 fs/udf/file.c:184 __fput+0x3f8/0x950 fs/file_table.c:384 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe88ba7b9da Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffccee72300 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007fe88ba7b9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e RBP: 00007fe88bb9d980 R08: 0000001b2f220000 R09: 0000000000000060 R10: 000000008184b56e R11: 0000000000000293 R12: 00000000002c9c86 R13: ffffffffffffffff R14: 00007fe88b600000 R15: 00000000002c9945