syzbot

------------[ cut here ]------------
WARNING: CPU: 1 PID: 6016 at kernel/cgroup/rstat.c:314 css_rstat_updated_list kernel/cgroup/rstat.c:314 [inline]
WARNING: CPU: 1 PID: 6016 at kernel/cgroup/rstat.c:314 css_rstat_flush+0x76f/0x1fa0 kernel/cgroup/rstat.c:425
Modules linked in:
CPU: 1 UID: 0 PID: 6016 Comm: kworker/1:7 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: cgroup_destroy css_free_rwork_fn
RIP: 0010:css_rstat_updated_list kernel/cgroup/rstat.c:314 [inline]
RIP: 0010:css_rstat_flush+0x76f/0x1fa0 kernel/cgroup/rstat.c:425
Code: df 80 3c 08 00 74 08 4c 89 e7 e8 2c a0 6a 00 49 8b 1c 24 48 3b 5c 24 38 74 22 e8 4c 1d 07 00 e9 72 ff ff ff e8 42 1d 07 00 90 <0f> 0b 90 eb bd e8 37 1d 07 00 45 31 e4 e9 bb 03 00 00 e8 2a 1d 07
RSP: 0018:ffffc9000b547780 EFLAGS: 00010093
RAX: ffffffff81b92fde RBX: ffff8881437ff000 RCX: ffff888046f3da00
RDX: 0000000000000000 RSI: ffffffff8be28d20 RDI: ffffffff8be28ce0
RBP: ffffc9000b5479b8 R08: ffffffff8fa10bf7 R09: 1ffffffff1f4217e
R10: dffffc0000000000 R11: fffffbfff1f4217f R12: ffffe8ffffc469d0
R13: ffff8881437ff000 R14: ffffffff8dba7c60 R15: ffff888125c51008
FS:  0000000000000000(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2a895a CR3: 0000000079678000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 css_rstat_exit+0xa9/0x320 kernel/cgroup/rstat.c:491
 css_free_rwork_fn+0x8b/0xc50 kernel/cgroup/cgroup.c:5449
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>