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BUG: KCSAN: data-race in mem_cgroup_flush_stats / tick_do_update_jiffies64

read-write to 0xffffffff85a079c0 of 8 bytes by interrupt on cpu 0:
 tick_do_update_jiffies64+0x112/0x1b0 kernel/time/tick-sched.c:118
 tick_sched_do_timer kernel/time/tick-sched.c:199 [inline]
 tick_sched_timer+0x7b/0x2c0 kernel/time/tick-sched.c:1474
 __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
 kcsan_setup_watchpoint+0x3fe/0x410 kernel/kcsan/core.c:705
 shrink_slab_memcg mm/vmscan.c:961 [inline]
 shrink_slab+0x221/0x650 mm/vmscan.c:1061
 shrink_node_memcgs mm/vmscan.c:6458 [inline]
 shrink_node+0xadf/0x1500 mm/vmscan.c:6491
 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
 try_charge_memcg+0xb35/0xd20 mm/memcontrol.c:2855
 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3138
 obj_cgroup_charge+0xe9/0x140 mm/memcontrol.c:3428
 memcg_slab_pre_alloc_hook mm/slab.h:464 [inline]
 slab_pre_alloc_hook+0x112/0x180 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
 vm_area_dup+0x2c/0x130 kernel/fork.c:504
 dup_mmap kernel/fork.c:712 [inline]
 dup_mm kernel/fork.c:1692 [inline]
 copy_mm+0x6b5/0xf80 kernel/fork.c:1741
 copy_process+0x1008/0x21b0 kernel/fork.c:2507
 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 0xffffffff85a079c0 of 8 bytes by task 6395 on cpu 1:
 do_flush_stats mm/memcontrol.c:653 [inline]
 mem_cgroup_flush_stats+0x5d/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: 0x0000000100033e23 -> 0x0000000100033e24

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 6395 Comm: syz-executor.3 Not tainted 6.3.0-syzkaller-13390-g2e1e1337881b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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