==================================================================
BUG: KCSAN: data-race in __cgroup_account_cputime / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffc792f0 of 8 bytes by task 18529 on cpu 0:
 __cgroup_account_cputime+0x5a/0xb0 kernel/cgroup/rstat.c:379
 cgroup_account_cputime include/linux/cgroup.h:797 [inline]
 update_curr+0xf4/0x240 kernel/sched/fair.c:909
 put_prev_entity+0x1d/0x180 kernel/sched/fair.c:4616
 pick_next_task_fair+0x1f6/0x260 kernel/sched/fair.c:7339
 __pick_next_task kernel/sched/core.c:5695 [inline]
 pick_next_task kernel/sched/core.c:6204 [inline]
 __schedule+0x270/0x6c0 kernel/sched/core.c:6352
 preempt_schedule_common kernel/sched/core.c:6553 [inline]
 __cond_resched+0x3f/0xa0 kernel/sched/core.c:8160
 _cond_resched include/linux/sched.h:2043 [inline]
 do_check+0x15aa/0x7070 kernel/bpf/verifier.c:11493
 do_check_common+0x50f/0xcb0 kernel/bpf/verifier.c:13845
 do_check_main kernel/bpf/verifier.c:13908 [inline]
 bpf_check+0x1b5f/0x8d60 kernel/bpf/verifier.c:14477
 bpf_prog_load+0xd0f/0xeb0 kernel/bpf/syscall.c:2351
 __sys_bpf+0x300/0x600 kernel/bpf/syscall.c:4663
 __do_sys_bpf kernel/bpf/syscall.c:4767 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4765 [inline]
 __x64_sys_bpf+0x3f/0x50 kernel/bpf/syscall.c:4765
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffe8ffffc792f0 of 8 bytes by task 5191 on cpu 1:
 cgroup_base_stat_flush kernel/cgroup/rstat.c:337 [inline]
 cgroup_rstat_flush_locked+0x2e3/0x750 kernel/cgroup/rstat.c:170
 cgroup_rstat_flush_irqsafe+0x24/0x40 kernel/cgroup/rstat.c:224
 __mem_cgroup_flush_stats mm/memcontrol.c:644 [inline]
 flush_memcg_stats_dwork+0x97/0x110 mm/memcontrol.c:663
 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289
 worker_thread+0x618/0xa70 kernel/workqueue.c:2436
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

value changed: 0x00000007125cfbef -> 0x00000007127b5f97

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 5191 Comm: kworker/u4:53 Not tainted 5.18.0-rc6-syzkaller-00009-gfeb9c5e19e91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_memcg_stats_dwork
==================================================================