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BUG: KCSAN: data-race in __mod_memcg_lruvec_state / mem_cgroup_css_rstat_flush

write to 0xffffe8ffffc66000 of 4 bytes by task 10233 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]
 mem_cgroup_flush_stats+0xb2/0xc0 mm/memcontrol.c:766
 prepare_scan_control mm/vmscan.c:2234 [inline]
 shrink_node+0x2f2/0x15a0 mm/vmscan.c:5906
 shrink_zones mm/vmscan.c:6152 [inline]
 do_try_to_free_pages+0x3cc/0xca0 mm/vmscan.c:6214
 try_to_free_mem_cgroup_pages+0x1eb/0x4e0 mm/vmscan.c:6529
 try_charge_memcg+0x279/0xd10 mm/memcontrol.c:2783
 try_charge mm/memcontrol.c:2931 [inline]
 charge_memcg mm/memcontrol.c:7284 [inline]
 mem_cgroup_swapin_charge_folio+0x107/0x1a0 mm/memcontrol.c:7369
 __read_swap_cache_async+0x2b9/0x520 mm/swap_state.c:514
 swap_cluster_readahead+0x380/0x3f0 mm/swap_state.c:697
 swapin_readahead+0xe2/0x7a0 mm/swap_state.c:904
 do_swap_page+0x3bb/0x15f0 mm/memory.c:4048
 handle_pte_fault mm/memory.c:5303 [inline]
 __handle_mm_fault mm/memory.c:5441 [inline]
 handle_mm_fault+0x7fa/0x27e0 mm/memory.c:5606
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2f5/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
 __get_user_8+0x11/0x20 arch/x86/lib/getuser.S:85
 fetch_robust_entry kernel/futex/core.c:783 [inline]
 exit_robust_list+0x31/0x280 kernel/futex/core.c:811
 futex_cleanup kernel/futex/core.c:1043 [inline]
 futex_exit_release+0xe3/0x130 kernel/futex/core.c:1144
 exit_mm_release+0x1a/0x30 kernel/fork.c:1653
 exit_mm+0x38/0x190 kernel/exit.c:542
 do_exit+0x57e/0x1740 kernel/exit.c:865
 do_group_exit+0x102/0x150 kernel/exit.c:1027
 get_signal+0xf2f/0x1080 kernel/signal.c:2911
 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0x94/0x130 kernel/entry/common.c:231
 irqentry_exit+0x12/0x50 kernel/entry/common.c:334
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read-write to 0xffffe8ffffc66000 of 4 bytes by task 10240 on cpu 0:
 memcg_rstat_updated mm/memcontrol.c:725 [inline]
 __mod_memcg_lruvec_state+0x13a/0x1a0 mm/memcontrol.c:875
 __mod_lruvec_state+0x3c/0x50 mm/memcontrol.c:897
 __update_lru_size include/linux/mm_inline.h:47 [inline]
 update_lru_size include/linux/mm_inline.h:56 [inline]
 lruvec_add_folio include/linux/mm_inline.h:326 [inline]
 move_folios_to_lru+0x311/0x690 mm/vmscan.c:1849
 shrink_active_list+0x566/0x770 mm/vmscan.c:2079
 shrink_list mm/vmscan.c:2157 [inline]
 shrink_lruvec+0x8b8/0x1640 mm/vmscan.c:5687
 shrink_node_memcgs mm/vmscan.c:5873 [inline]
 shrink_node+0xa78/0x15a0 mm/vmscan.c:5908
 shrink_zones mm/vmscan.c:6152 [inline]
 do_try_to_free_pages+0x3cc/0xca0 mm/vmscan.c:6214
 try_to_free_mem_cgroup_pages+0x1eb/0x4e0 mm/vmscan.c:6529
 try_charge_memcg+0x279/0xd10 mm/memcontrol.c:2783
 try_charge mm/memcontrol.c:2931 [inline]
 charge_memcg mm/memcontrol.c:7284 [inline]
 mem_cgroup_swapin_charge_folio+0x107/0x1a0 mm/memcontrol.c:7369
 __read_swap_cache_async+0x2b9/0x520 mm/swap_state.c:514
 swap_cluster_readahead+0x276/0x3f0 mm/swap_state.c:678
 swapin_readahead+0xe2/0x7a0 mm/swap_state.c:904
 do_swap_page+0x3bb/0x15f0 mm/memory.c:4048
 handle_pte_fault mm/memory.c:5303 [inline]
 __handle_mm_fault mm/memory.c:5441 [inline]
 handle_mm_fault+0x7fa/0x27e0 mm/memory.c:5606
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2f5/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
 __get_user_8+0x11/0x20 arch/x86/lib/getuser.S:85
 fetch_robust_entry kernel/futex/core.c:783 [inline]
 exit_robust_list+0x31/0x280 kernel/futex/core.c:811
 futex_cleanup kernel/futex/core.c:1043 [inline]
 futex_exit_release+0xe3/0x130 kernel/futex/core.c:1144
 exit_mm_release+0x1a/0x30 kernel/fork.c:1653
 exit_mm+0x38/0x190 kernel/exit.c:542
 do_exit+0x57e/0x1740 kernel/exit.c:865
 do_group_exit+0x102/0x150 kernel/exit.c:1027
 get_signal+0xf2f/0x1080 kernel/signal.c:2911
 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x59/0x130 kernel/entry/common.c:218
 do_syscall_64+0xda/0x1d0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000009 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 10240 Comm: syz-executor.4 Not tainted 6.9.0-rc4-syzkaller-00329-g48cf398f15fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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