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BUG: KCSAN: data-race in __mod_memcg_lruvec_state / mem_cgroup_css_rstat_flush

write to 0xffff888237c344c0 of 4 bytes by task 27 on cpu 1:
 mem_cgroup_css_rstat_flush+0x4ea/0x540 mm/memcontrol.c:5848
 cgroup_rstat_flush_locked+0x848/0x980 kernel/cgroup/rstat.c:245
 cgroup_rstat_flush+0x26/0x40 kernel/cgroup/rstat.c:277
 do_flush_stats mm/memcontrol.c:745 [inline]
 flush_memcg_stats_dwork+0x50/0x90 mm/memcontrol.c:782
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335
 worker_thread+0x526/0x730 kernel/workqueue.c:3416
 kthread+0x1d1/0x210 kernel/kthread.c:388
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff888237c344c0 of 4 bytes by task 14719 on cpu 0:
 memcg_rstat_updated mm/memcontrol.c:725 [inline]
 __mod_memcg_lruvec_state+0x13a/0x1a0 mm/memcontrol.c:875
 __mod_lruvec_state mm/memcontrol.c:897 [inline]
 __lruvec_stat_mod_folio+0xce/0x120 mm/memcontrol.c:917
 __folio_add_file_rmap mm/rmap.c:1457 [inline]
 folio_add_file_rmap_ptes+0xf5/0x180 mm/rmap.c:1478
 set_pte_range+0x2ae/0x670 mm/memory.c:4682
 finish_fault+0x3fc/0x510 mm/memory.c:4757
 do_read_fault mm/memory.c:4898 [inline]
 do_fault mm/memory.c:5024 [inline]
 do_pte_missing mm/memory.c:3880 [inline]
 handle_pte_fault mm/memory.c:5300 [inline]
 __handle_mm_fault mm/memory.c:5441 [inline]
 handle_mm_fault+0xdeb/0x27e0 mm/memory.c:5606
 faultin_page mm/gup.c:958 [inline]
 __get_user_pages+0x470/0xec0 mm/gup.c:1257
 populate_vma_page_range mm/gup.c:1697 [inline]
 __mm_populate+0x204/0x340 mm/gup.c:1800
 mm_populate include/linux/mm.h:3411 [inline]
 vm_mmap_pgoff+0x1a8/0x250 mm/util.c:578
 ksys_mmap_pgoff+0xc6/0x340 mm/mmap.c:1431
 x64_sys_call+0x1815/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 14719 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00036-g9d1ddab261f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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