BTRFS info (device loop5): at unmount dio bytes count 45056
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WARNING: CPU: 0 PID: 5096 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x216/0x260 fs/btrfs/block-group.c:159
Modules linked in:
CPU: 0 PID: 5096 Comm: syz-executor.5 Not tainted 6.7.0-rc2-syzkaller-00014-gc2d5304e6c64 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:btrfs_put_block_group+0x216/0x260 fs/btrfs/block-group.c:159
Code: e8 5f 95 d6 fd 90 0f 0b 90 e9 87 fe ff ff e8 51 95 d6 fd 48 89 df be 03 00 00 00 5b 41 5e 5d e9 50 f8 ca 00 e8 3b 95 d6 fd 90 <0f> 0b 90 e9 4b ff ff ff e8 2d 95 d6 fd 90 0f 0b 90 4c 89 f0 48 c1
RSP: 0018:ffffc9000423fab8 EFLAGS: 00010293
RAX: ffffffff83b7e445 RBX: 000000000000b000 RCX: ffff888021e00000
RDX: 0000000000000000 RSI: 000000000000b000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff83b7e38b R09: 1ffff110032ed33e
R10: dffffc0000000000 R11: ffffed10032ed33f R12: ffff888078407000
R13: 1ffff1100f080e2e R14: ffff888078407000 R15: ffff888019768188
FS:  00005555572e6480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006e000 CR3: 0000000031bc5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_free_block_groups+0xb77/0x1070 fs/btrfs/block-group.c:4360
 close_ctree+0x75a/0xd40 fs/btrfs/disk-io.c:4389
 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696
 kill_anon_super+0x3b/0x70 fs/super.c:1295
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2097
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fcea527de17
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:00007ffe2fb49a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcea527de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe2fb49b20
RBP: 00007ffe2fb49b20 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe2fb4abe0
R13: 00007fcea52c73b9 R14: 00000000000cd59a R15: 0000000000000009
 </TASK>