------------[ cut here ]------------ 1 WARNING: fs/btrfs/space-info.h:257 at btrfs_space_info_update_bytes_may_use+0x318/0x600 fs/btrfs/space-info.h:257, CPU#0: syz-executor/5796 Modules linked in: CPU: 0 UID: 0 PID: 5796 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:btrfs_space_info_update_bytes_may_use+0x318/0x600 fs/btrfs/space-info.h:257 Code: 00 00 74 08 4c 89 ff e8 b6 cf 2c fe 4d 8b 27 4c 89 e7 48 8b 6c 24 18 48 89 ee e8 03 6e c8 fd 49 39 ec 73 1c e8 59 6b c8 fd 90 <0f> 0b 90 31 db 43 80 7c 35 00 00 0f 85 48 ff ff ff e9 4b ff ff ff RSP: 0018:ffffc90004fcf9f0 EFLAGS: 00010293 RAX: ffffffff83fac917 RBX: fffffffffff00000 RCX: ffff888032921e40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000100000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1e8fbcf R12: 00000000000ff000 R13: 1ffff1100c32ad18 R14: dffffc0000000000 R15: ffff8880619568c0 FS: 000055556465b500(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42673d8b60 CR3: 000000003f8aa000 CR4: 00000000003526f0 Call Trace: btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:294 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:153 [inline] btrfs_block_rsv_release+0x491/0x5a0 fs/btrfs/block-rsv.c:290 btrfs_release_global_block_rsv+0x33/0x270 fs/btrfs/block-rsv.c:455 btrfs_free_block_groups+0xcbf/0xfd0 fs/btrfs/block-group.c:4579 close_ctree+0x7b4/0x13a0 fs/btrfs/disk-io.c:4428 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_anon_super+0x3b/0x70 fs/super.c:1289 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2127 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1318 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f739e0ebf17 Code: a2 c7 05 7c 96 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe9706d3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f739e15471f RCX: 00007f739e0ebf17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe9706d4a0 RBP: 00007ffe9706d4a0 R08: 00007ffe9706e4a0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9706e530 R13: 00007f739e15471f R14: 0000000000052bb6 R15: 00007ffe9706e570