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BUG: KCSAN: data-race in __cgroup_account_cputime_field / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffc7da10 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+0x244/0x2c0 kernel/time/tick-sched.c:1481
 __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:1095 [inline]
 __sysvec_apic_timer_interrupt+0x73/0x210 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x68/0x80 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
 get_current kernel/rcu/tree_plugin.h:417 [inline]
 __rcu_read_unlock+0xc/0x70 kernel/rcu/tree_plugin.h:418
 rcu_read_unlock include/linux/rcupdate.h:805 [inline]
 percpu_ref_tryget_many include/linux/percpu-refcount.h:250 [inline]
 percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
 obj_cgroup_tryget include/linux/memcontrol.h:786 [inline]
 __get_obj_cgroup_from_memcg mm/memcontrol.c:3043 [inline]
 get_obj_cgroup_from_current+0x1a6/0x220 mm/memcontrol.c:3063
 memcg_slab_pre_alloc_hook mm/slab.h:448 [inline]
 slab_pre_alloc_hook+0x73/0x180 mm/slab.h:675
 slab_alloc_node mm/slab.c:3240 [inline]
 slab_alloc mm/slab.c:3265 [inline]
 __kmem_cache_alloc_lru mm/slab.c:3442 [inline]
 kmem_cache_alloc+0x58/0x260 mm/slab.c:3451
 kmem_cache_zalloc include/linux/slab.h:670 [inline]
 copy_signal+0x54/0x360 kernel/fork.c:1861
 copy_process+0xfe1/0x21b0 kernel/fork.c:2504
 kernel_clone+0x169/0x560 kernel/fork.c:2918
 __do_sys_clone kernel/fork.c:3061 [inline]
 __se_sys_clone kernel/fork.c:3045 [inline]
 __x64_sys_clone+0xe8/0x120 kernel/fork.c:3045
 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 0xffffe8ffffc7da10 of 8 bytes by task 8160 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+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:2904 [inline]
 shrink_node+0x2fa/0x1500 mm/vmscan.c:6489
 shrink_zones mm/vmscan.c:6726 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6788
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7103
 reclaim_high+0xca/0x110 mm/memcontrol.c:2432
 mem_cgroup_handle_over_high+0x8c/0x1a0 mm/memcontrol.c:2617
 resume_user_mode_work include/linux/resume_user_mode.h:58 [inline]
 exit_to_user_mode_loop+0x9b/0xe0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x000000083eec5731 -> 0x000000083f84cdfa

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8160 Comm: syz-executor.1 Tainted: G        W          6.3.0-syzkaller-12378-gc8c655c34e33 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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