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BUG: KCSAN: data-race in __mod_memcg_state / mem_cgroup_css_rstat_flush

write to 0xffffe8ffffc5d740 of 4 bytes by task 19396 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+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:1362 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x3eb/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read-write to 0xffffe8ffffc5d740 of 4 bytes by task 19397 on cpu 0:
 memcg_rstat_updated mm/memcontrol.c:725 [inline]
 __mod_memcg_state+0x10c/0x170 mm/memcontrol.c:824
 mod_memcg_state include/linux/memcontrol.h:1002 [inline]
 mod_memcg_page_state include/linux/memcontrol.h:1017 [inline]
 __vmalloc_area_node mm/vmalloc.c:3645 [inline]
 __vmalloc_node_range+0xa98/0xee0 mm/vmalloc.c:3818
 __bpf_map_area_alloc kernel/bpf/syscall.c:307 [inline]
 bpf_map_area_alloc+0xd8/0x110 kernel/bpf/syscall.c:314
 sock_map_alloc+0x13a/0x190 net/core/sock_map.c:49
 map_create+0x83c/0xb90 kernel/bpf/syscall.c:1320
 __sys_bpf+0x667/0x7a0 kernel/bpf/syscall.c:5642
 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5765 [inline]
 __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5765
 x64_sys_call+0x86c/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:322
 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: 0x00000027 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 19397 Comm: syz-executor.4 Tainted: G        W          6.9.0-rc3-syzkaller-00355-g7efd0a74039f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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