BTRFS info (device loop5): at unmount dio bytes count 45056
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WARNING: CPU: 0 PID: 5445 at fs/btrfs/block-group.c:159 btrfs_put_block_group fs/btrfs/block-group.c:159 [inline]
WARNING: CPU: 0 PID: 5445 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x2ce/0x330 fs/btrfs/block-group.c:146
Modules linked in:
CPU: 0 PID: 5445 Comm: syz-executor.5 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:btrfs_put_block_group fs/btrfs/block-group.c:159 [inline]
RIP: 0010:btrfs_put_block_group+0x2ce/0x330 fs/btrfs/block-group.c:146
Code: 8d b8 e0 15 00 00 e8 01 70 01 00 e9 b4 fe ff ff e8 47 cc 43 fe e9 1b fe ff ff e8 3d cc 43 fe e9 d3 fd ff ff e8 c3 25 ed fd 90 <0f> 0b 90 e9 5b fe ff ff e8 25 cc 43 fe e9 af fe ff ff e8 1b cc 43
RSP: 0018:ffffc90009c77b68 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807adef000 RCX: ffffffff839a62d8
RDX: ffff88806c09bb80 RSI: ffffffff839a647d RDI: 0000000000000007
RBP: 000000000000b000 R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000b000 R11: 0000000000000002 R12: ffff888027128000
R13: 0000000000000001 R14: ffff88807adef160 R15: ffff88807adef000
FS:  0000555556601480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005601b5ba8938 CR3: 000000007a58f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 btrfs_free_block_groups+0x9f5/0x13e0 fs/btrfs/block-group.c:4360
 close_ctree+0xa51/0xf90 fs/btrfs/disk-io.c:4390
 generic_shutdown_super+0x161/0x3d0 fs/super.c:696
 kill_anon_super+0x3a/0x60 fs/super.c:1295
 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2100
 deactivate_locked_super+0xbc/0x1a0 fs/super.c:484
 deactivate_super+0xde/0x100 fs/super.c:517
 cleanup_mnt+0x222/0x450 fs/namespace.c:1256
 task_work_run+0x14d/0x240 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x217/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
 do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fbcde87de17
Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff2146df68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbcde87de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff2146e020
RBP: 00007fff2146e020 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff2146f0e0
R13: 00007fbcde8c73b9 R14: 00000000000268c8 R15: 0000000000000006
 </TASK>