------------[ 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/5789 Modules linked in: CPU: 0 UID: 0 PID: 5789 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 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 57 29 fe 4d 8b 27 4c 89 e7 48 8b 6c 24 18 48 89 ee e8 73 23 c4 fd 49 39 ec 73 1c e8 c9 20 c4 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:ffffc90004bbf9f0 EFLAGS: 00010293 RAX: ffffffff83ff12f7 RBX: fffffffffff00000 RCX: ffff888036bdbc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000100000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1e91f6f R12: 00000000000ff000 R13: 1ffff1100c36b018 R14: dffffc0000000000 R15: ffff888061b580c0 FS: 0000555590970500(0000) GS:ffff88812659c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efc9553da08 CR3: 000000003cfde000 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+0x33/0x300 fs/btrfs/block-rsv.c:461 btrfs_free_block_groups+0xe04/0x1110 fs/btrfs/block-group.c:4671 close_ctree+0x7b4/0x13b0 fs/btrfs/disk-io.c:4456 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646 kill_anon_super+0x3b/0x70 fs/super.c:1292 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2127 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 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:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __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 include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe4849bd1d7 Code: a2 c7 05 bc e3 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:00007ffc5f04bb68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fe484a51c3b RCX: 00007fe4849bd1d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc5f04bc20 RBP: 00007ffc5f04bc20 R08: 00007ffc5f04cc20 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5f04ccb0 R13: 00007fe484a51c3b R14: 000000000001f5d6 R15: 00007ffc5f04ccf0