------------[ cut here ]------------
WARNING: CPU: 0 PID: 6346 at kernel/rcu/srcutree.c:695 cleanup_srcu_struct+0x499/0x5c0 kernel/rcu/srcutree.c:695
Modules linked in:
CPU: 0 UID: 0 PID: 6346 Comm: syz-executor Not tainted 6.14.0-syzkaller-09584-g7d06015d936c #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:cleanup_srcu_struct+0x499/0x5c0 kernel/rcu/srcutree.c:695
Code: 18 80 3c 28 00 74 08 48 89 df e8 72 ea 80 00 48 c7 03 00 00 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 eb e7 90 0f 0b 90 eb e1 90 0f 0b 90 eb db 90 0f 0b 90 eb
RSP: 0018:ffffc90003027c00 EFLAGS: 00010206
RAX: 1ffffd1ffff6d6e9 RBX: 0000000000000001 RCX: 6ec8f47813dce100
RDX: 0000000000000000 RSI: ffffffff8ca08ca0 RDI: ffffffff8ca08c60
RBP: ffffe8ffffb6b748 R08: ffffffff818a9453 R09: 1ffffd1ffff6d6fc
R10: dffffc0000000000 R11: fffff91ffff6d6fd R12: 1ffffffff1cec054
R13: ffff88804ff04208 R14: dffffc0000000000 R15: dffffc0000000000
FS:  0000555573d76500(0000) GS:ffff888125011000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9039b69160 CR3: 000000006bad2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_fs_btree_iter_exit+0x3f0/0x480 fs/bcachefs/btree_iter.c:3620
 __bch2_fs_free fs/bcachefs/super.c:568 [inline]
 bch2_fs_release+0x230/0x7d0 fs/bcachefs/super.c:621
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
 task_work_run+0x251/0x310 kernel/task_work.c:227
 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/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f30edb87057
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:00007fffbccf6cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f30edc0180c RCX: 00007f30edb87057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffbccf6d90
RBP: 00007fffbccf6d90 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffbccf7e10
R13: 00007f30edc0180c R14: 00007fffbccf7e50 R15: 000000000000004b
 </TASK>