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BUG: KCSAN: data-race in __mod_memcg_lruvec_state / mem_cgroup_css_rstat_flush

write to 0xffffe8ffffc45a80 of 4 bytes by task 49 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 0xffffe8ffffc45a80 of 4 bytes by task 28858 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]
 lru_add_fn+0x289/0x430 mm/swap.c:215
 folio_batch_move_lru+0x20c/0x2c0 mm/swap.c:233
 folio_batch_add_and_move mm/swap.c:249 [inline]
 folio_add_lru mm/swap.c:532 [inline]
 folio_add_lru_vma+0x105/0x170 mm/swap.c:552
 wp_page_copy mm/memory.c:3331 [inline]
 do_wp_page+0x1556/0x1e70 mm/memory.c:3660
 handle_pte_fault mm/memory.c:5316 [inline]
 __handle_mm_fault mm/memory.c:5441 [inline]
 handle_mm_fault+0xb7f/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
 __put_user_nocheck_4+0x7/0x20 arch/x86/lib/putuser.S:95
 ____sys_recvmsg+0x1a3/0x280 net/socket.c:2816
 ___sys_recvmsg net/socket.c:2845 [inline]
 do_recvmmsg+0x2eb/0x720 net/socket.c:2939
 __sys_recvmmsg net/socket.c:3018 [inline]
 __do_sys_recvmmsg net/socket.c:3041 [inline]
 __se_sys_recvmmsg net/socket.c:3034 [inline]
 __x64_sys_recvmmsg+0xe2/0x170 net/socket.c:3034
 x64_sys_call+0xda3/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:300
 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: 0x00000023 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 28858 Comm: syz-executor.2 Tainted: G        W          6.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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