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BUG: KCSAN: data-race in __cgroup_account_cputime_field / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffc76610 of 8 bytes by interrupt on cpu 0:
 __cgroup_account_cputime_field+0x98/0x100
 cgroup_account_cputime_field include/linux/cgroup.h:737 [inline]
 task_group_account_field kernel/sched/cputime.c:113 [inline]
 account_system_index_time+0x72/0x80 kernel/sched/cputime.c:176
 update_process_times+0x22/0x110 kernel/time/timer.c:2069
 tick_sched_handle kernel/time/tick-sched.c:243 [inline]
 tick_sched_timer+0x233/0x2b0 kernel/time/tick-sched.c:1480
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0x73/0x210 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x68/0x80 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
 kcsan_setup_watchpoint+0x3fe/0x410 kernel/kcsan/core.c:696
 instrument_write include/linux/instrumented.h:43 [inline]
 ___clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:44 [inline]
 __clear_open_fd fs/file.c:271 [inline]
 dup_fd+0x3ec/0x600 fs/file.c:393
 copy_files+0x85/0x100 kernel/fork.c:1645
 copy_process+0xea2/0x2100 kernel/fork.c:2255
 kernel_clone+0x169/0x560 kernel/fork.c:2682
 __do_sys_clone kernel/fork.c:2823 [inline]
 __se_sys_clone kernel/fork.c:2807 [inline]
 __x64_sys_clone+0xdf/0x110 kernel/fork.c:2807
 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 0xffffe8ffffc76610 of 8 bytes by task 16831 on cpu 1:
 cgroup_base_stat_flush kernel/cgroup/rstat.c:373 [inline]
 cgroup_rstat_flush_locked+0x2c3/0x700 kernel/cgroup/rstat.c:199
 cgroup_rstat_flush_irqsafe+0x28/0x40 kernel/cgroup/rstat.c:254
 __mem_cgroup_flush_stats mm/memcontrol.c:645 [inline]
 mem_cgroup_flush_stats+0xc5/0x120 mm/memcontrol.c:653
 prepare_scan_count mm/vmscan.c:2848 [inline]
 shrink_node+0x321/0x14f0 mm/vmscan.c:6471
 shrink_zones mm/vmscan.c:6711 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6773
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7088
 try_charge_memcg+0x27d/0xd20 mm/memcontrol.c:2695
 try_charge mm/memcontrol.c:2837 [inline]
 mem_cgroup_charge_skmem+0x51/0x1c0 mm/memcontrol.c:7290
 sock_reserve_memory+0xb1/0x370 net/core/sock.c:1025
 sk_setsockopt+0x800/0x1e70 net/core/sock.c:1525
 sock_setsockopt+0x3c/0x50 net/core/sock.c:1551
 __sys_setsockopt+0x177/0x230 net/socket.c:2267
 __do_sys_setsockopt net/socket.c:2282 [inline]
 __se_sys_setsockopt net/socket.c:2279 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2279
 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: 0x00000001dcbd1dbb -> 0x00000001dd55b43b

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16831 Comm: syz-executor.4 Not tainted 6.3.0-rc6-syzkaller-00046-gde4664485abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
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