------------[ cut here ]------------ WARNING: CPU: 1 PID: 4354 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2d3/0x5b0 fs/btrfs/space-info.h:110 Modules linked in: CPU: 1 PID: 4354 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:btrfs_space_info_update_bytes_may_use+0x2d3/0x5b0 fs/btrfs/space-info.h:110 Code: 35 00 00 74 08 4c 89 ff e8 9a 46 54 fe 4d 8b 27 4c 89 e7 48 8b 6c 24 18 48 89 ee e8 37 00 0f fe 49 39 ec 73 1a e8 4d fe 0e fe <0f> 0b 31 db 43 80 7c 35 00 00 0f 85 6d ff ff ff e9 70 ff ff ff e8 RSP: 0018:ffffc90002f7fb78 EFLAGS: 00010293 RAX: ffffffff836a2f43 RBX: fffffffffff30000 RCX: ffff888022030000 RDX: 0000000000000000 RSI: 00000000000d0000 RDI: 00000000000cf000 RBP: 00000000000d0000 R08: ffffffff8e6d322f R09: 1ffffffff1cda645 R10: dffffc0000000000 R11: fffffbfff1cda646 R12: 00000000000cf000 R13: 1ffff1100f23830c R14: dffffc0000000000 R15: ffff8880791c1860 FS: 000055556fa50500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cc8a694990 CR3: 0000000074ee9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:142 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:151 [inline] btrfs_block_rsv_release+0x480/0x560 fs/btrfs/block-rsv.c:295 btrfs_release_global_block_rsv+0x2f/0x250 fs/btrfs/block-rsv.c:451 btrfs_free_block_groups+0x87d/0xc80 fs/btrfs/block-group.c:3988 close_ctree+0x71b/0x8d0 fs/btrfs/disk-io.c:4505 generic_shutdown_super+0x130/0x300 fs/super.c:475 kill_anon_super+0x36/0x70 fs/super.c:1100 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2390 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x426/0x4d0 fs/namespace.c:1148 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:184 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:217 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:310 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f29950fbd57 Code: a2 c7 05 9c a9 25 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:00007ffcefe67938 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f29950fbd57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcefe679f0 RBP: 00007ffcefe679f0 R08: 00007ffcefe689f0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcefe68a80 R13: 00007f2995191f3b R14: 00000000000139af R15: 00007ffcefe68ac0