------------[ cut here ]------------
WARNING: CPU: 0 PID: 12733 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x2f8/0x350 fs/btrfs/block-group.c:159
Modules linked in:
CPU: 0 UID: 0 PID: 12733 Comm: syz-executor Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:btrfs_put_block_group+0x2f8/0x350 fs/btrfs/block-group.c:159
Code: 42 80 3c 20 00 74 08 4c 89 f7 e8 93 bb 25 fe bf 80 16 00 00 49 03 3e 4c 89 f6 e8 03 9b 01 00 e9 c1 fe ff ff e8 89 de c1 fd 90 <0f> 0b 90 e9 85 fe ff ff e8 7b de c1 fd e9 7b fe ff ff e8 71 de c1
RSP: 0000:ffffc90003b7fac8 EFLAGS: 00010293
RAX: ffffffff83dd9507 RBX: 0000000000003000 RCX: ffff8880301bda00
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff83dd9387 R09: 1ffff1100f22db52
R10: dffffc0000000000 R11: ffffed100f22db53 R12: dffffc0000000000
R13: 1ffff1100504892e R14: ffff888028244800 R15: ffff88807916c188
FS:  00005555953d0500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd29f127000 CR3: 000000007b51e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_free_block_groups+0xb7a/0x1080 fs/btrfs/block-group.c:4466
 close_ctree+0x7b0/0xd90 fs/btrfs/disk-io.c:4385
 generic_shutdown_super+0x139/0x2d0 fs/super.c:642
 kill_anon_super+0x3b/0x70 fs/super.c:1237
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2100
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f35c6987057
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd0a98f618 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f35c6987057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0a98f6d0
RBP: 00007ffd0a98f6d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd0a990750
R13: 00007f35c6a018f4 R14: 00007ffd0a990790 R15: 0000000000000009
 </TASK>