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BUG: KCSAN: data-race in __cgroup_account_cputime_field / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffd93de0 of 8 bytes by interrupt on cpu 1:
 __cgroup_account_cputime_field+0xae/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+0x7e/0x90 kernel/sched/cputime.c:176
 update_process_times+0x22/0x120 kernel/time/timer.c:2069
 tick_sched_handle kernel/time/tick-sched.c:243 [inline]
 tick_sched_timer+0x23f/0x2c0 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+0x224/0x7c0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0xa7/0x250 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
 __tsan_unaligned_volatile_read8+0x0/0x190 kernel/kcsan/core.c:744
 __ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
 percpu_ref_put_many include/linux/percpu-refcount.h:332 [inline]
 percpu_ref_put include/linux/percpu-refcount.h:351 [inline]
 css_put include/linux/cgroup_refcnt.h:79 [inline]
 obj_cgroup_charge_pages+0x125/0x1c0 mm/memcontrol.c:3115
 __memcg_kmem_charge_page+0x1d5/0x2c0 mm/memcontrol.c:3135
 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:5608
 alloc_pages+0x3e1/0x4e0
 __pte_alloc_one include/asm-generic/pgalloc.h:63 [inline]
 pte_alloc_one+0x2d/0xc0 arch/x86/mm/pgtable.c:33
 __pte_alloc+0x33/0x1f0 mm/memory.c:421
 copy_pte_range mm/memory.c:997 [inline]
 copy_pmd_range mm/memory.c:1132 [inline]
 copy_pud_range mm/memory.c:1169 [inline]
 copy_p4d_range mm/memory.c:1193 [inline]
 copy_page_range+0x1b34/0x2010 mm/memory.c:1291
 dup_mmap kernel/fork.c:691 [inline]
 dup_mm kernel/fork.c:1550 [inline]
 copy_mm+0x8c8/0xdd0 kernel/fork.c:1599
 copy_process+0xf3e/0x2110 kernel/fork.c:2269
 kernel_clone+0x169/0x560 kernel/fork.c:2684
 __do_sys_clone kernel/fork.c:2825 [inline]
 __se_sys_clone kernel/fork.c:2809 [inline]
 __x64_sys_clone+0xdf/0x110 kernel/fork.c:2809
 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 0xffffe8ffffd93de0 of 8 bytes by task 3135 on cpu 0:
 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
 reclaim_high+0xca/0x110 mm/memcontrol.c:2403
 mem_cgroup_handle_over_high+0x8c/0x1a0 mm/memcontrol.c:2588
 resume_user_mode_work include/linux/resume_user_mode.h:58 [inline]
 exit_to_user_mode_loop+0x99/0xe0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x6a/0xa0 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000451ed98be -> 0x0000000452862f3e

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3135 Comm: syz-executor.1 Not tainted 6.3.0-rc2-syzkaller-00006-gfc89d7fb499b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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