Memory cgroup out of memory: Killed process 13515 (syz-executor.2) total-vm:51464kB, anon-rss:512kB, file-rss:12032kB, shmem-rss:0kB, UID:0 pgtables:84kB oom_score_adj:1000
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BUG: KCSAN: data-race in __count_memcg_events / mem_cgroup_css_rstat_flush

write to 0xffffe8ffffc43500 of 4 bytes by task 22557 on cpu 1:
 mem_cgroup_css_rstat_flush+0x4ea/0x540 mm/memcontrol.c:5848
 cgroup_rstat_flush_locked+0x93a/0xe20 kernel/cgroup/rstat.c:322
 cgroup_rstat_flush+0x2a/0x120 kernel/cgroup/rstat.c:354
 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:4043
 handle_pte_fault mm/memory.c:5298 [inline]
 __handle_mm_fault mm/memory.c:5436 [inline]
 handle_mm_fault+0x7fa/0x27e0 mm/memory.c:5601
 do_user_addr_fault arch/x86/mm/fault.c:1332 [inline]
 handle_page_fault arch/x86/mm/fault.c:1475 [inline]
 exc_page_fault+0x3eb/0x690 arch/x86/mm/fault.c:1533
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read-write to 0xffffe8ffffc43500 of 4 bytes by task 25600 on cpu 0:
 memcg_rstat_updated mm/memcontrol.c:725 [inline]
 __count_memcg_events+0xce/0x130 mm/memcontrol.c:962
 count_memcg_events include/linux/memcontrol.h:1096 [inline]
 count_memcg_folio_events include/linux/memcontrol.h:1106 [inline]
 shrink_folio_list+0xc72/0x2460 mm/vmscan.c:1451
 shrink_inactive_list mm/vmscan.c:1926 [inline]
 shrink_list mm/vmscan.c:2163 [inline]
 shrink_lruvec+0xbbc/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
 shmem_swapin_cluster mm/shmem.c:1576 [inline]
 shmem_swapin_folio+0x246/0x740 mm/shmem.c:1885
 shmem_get_folio_gfp+0x278/0xb70 mm/shmem.c:1991
 shmem_fault+0x100/0x260 mm/shmem.c:2255
 __do_fault+0xb6/0x200 mm/memory.c:4526
 do_shared_fault mm/memory.c:4949 [inline]
 do_fault mm/memory.c:5023 [inline]
 do_pte_missing mm/memory.c:3875 [inline]
 handle_pte_fault mm/memory.c:5295 [inline]
 __handle_mm_fault mm/memory.c:5436 [inline]
 handle_mm_fault+0xb9e/0x27e0 mm/memory.c:5601
 do_user_addr_fault arch/x86/mm/fault.c:1332 [inline]
 handle_page_fault arch/x86/mm/fault.c:1475 [inline]
 exc_page_fault+0x3eb/0x690 arch/x86/mm/fault.c:1533
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

value changed: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 25600 Comm: syz-executor.2 Tainted: G        W          6.9.0-syzkaller-08284-gea5f6ad9ad96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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