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BUG: KCSAN: data-race in __cgroup_account_cputime / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffd779f0 of 8 bytes by task 5999 on cpu 1:
 __cgroup_account_cputime+0x44/0xa0 kernel/cgroup/rstat.c:415
 cgroup_account_cputime include/linux/cgroup.h:724 [inline]
 update_curr+0xf8/0x250 kernel/sched/fair.c:930
 put_prev_entity+0x1d/0x110 kernel/sched/fair.c:5141
 pick_next_task_fair+0x20f/0x280 kernel/sched/fair.c:8059
 __pick_next_task kernel/sched/core.c:5972 [inline]
 pick_next_task kernel/sched/core.c:6488 [inline]
 __schedule+0x290/0x8b0 kernel/sched/core.c:6633
 preempt_schedule_common kernel/sched/core.c:6838 [inline]
 __cond_resched+0x28/0x50 kernel/sched/core.c:8516
 _cond_resched include/linux/sched.h:2086 [inline]
 shrink_node_memcgs mm/vmscan.c:6440 [inline]
 shrink_node+0x977/0x1500 mm/vmscan.c:6502
 shrink_zones mm/vmscan.c:6737 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6799
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7114
 try_charge_memcg+0x27d/0xd20 mm/memcontrol.c:2724
 try_charge mm/memcontrol.c:2866 [inline]
 mem_cgroup_charge_skmem+0x51/0x1c0 mm/memcontrol.c:7351
 sock_reserve_memory+0xb1/0x370 net/core/sock.c:1025
 sk_setsockopt+0x800/0x1de0 net/core/sock.c:1520
 sock_setsockopt+0x3c/0x50 net/core/sock.c:1546
 __sys_setsockopt+0x177/0x230 net/socket.c:2269
 __do_sys_setsockopt net/socket.c:2284 [inline]
 __se_sys_setsockopt net/socket.c:2281 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2281
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffe8ffffd779f0 of 8 bytes by task 6000 on cpu 0:
 cgroup_base_stat_flush kernel/cgroup/rstat.c:373 [inline]
 cgroup_rstat_flush_locked+0x2e1/0x700 kernel/cgroup/rstat.c:199
 cgroup_rstat_flush+0x2b/0x40 kernel/cgroup/rstat.c:239
 do_flush_stats mm/memcontrol.c:658 [inline]
 mem_cgroup_flush_stats+0x9f/0xd0 mm/memcontrol.c:672
 prepare_scan_count mm/vmscan.c:2915 [inline]
 shrink_node+0x2fa/0x1500 mm/vmscan.c:6500
 shrink_zones mm/vmscan.c:6737 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6799
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7114
 try_charge_memcg+0x27d/0xd20 mm/memcontrol.c:2724
 try_charge mm/memcontrol.c:2866 [inline]
 mem_cgroup_charge_skmem+0x51/0x1c0 mm/memcontrol.c:7351
 sock_reserve_memory+0xb1/0x370 net/core/sock.c:1025
 sk_setsockopt+0x800/0x1de0 net/core/sock.c:1520
 sock_setsockopt+0x3c/0x50 net/core/sock.c:1546
 __sys_setsockopt+0x177/0x230 net/socket.c:2269
 __do_sys_setsockopt net/socket.c:2284 [inline]
 __se_sys_setsockopt net/socket.c:2281 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2281
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000000a21e71ea -> 0x00000000a21e81f1

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 6000 Comm: syz-executor.3 Not tainted 6.4.0-rc5-syzkaller-00017-ga27648c74210 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
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