oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz0,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz.0.722,pid=7223,uid=0
Memory cgroup out of memory: Killed process 7223 (syz.0.722) total-vm:87100kB, anon-rss:592kB, file-rss:16036kB, shmem-rss:0kB, UID:0 pgtables:112kB oom_score_adj:1000
==================================================================
BUG: KCSAN: data-race in mem_cgroup_iter / mem_cgroup_iter

read-write to 0xffff888116020668 of 4 bytes by task 5909 on cpu 0:
 mem_cgroup_iter+0x28e/0x380 mm/memcontrol.c:1080
 shrink_node_memcgs mm/vmscan.c:5904 [inline]
 shrink_node+0x74a/0x1d40 mm/vmscan.c:5928
 shrink_zones mm/vmscan.c:6172 [inline]
 do_try_to_free_pages+0x3c6/0xc50 mm/vmscan.c:6234
 try_to_free_mem_cgroup_pages+0x1f3/0x4f0 mm/vmscan.c:6566
 try_charge_memcg+0x2bc/0x810 mm/memcontrol.c:2210
 try_charge mm/memcontrol-v1.h:20 [inline]
 charge_memcg mm/memcontrol.c:4438 [inline]
 mem_cgroup_swapin_charge_folio+0x107/0x1a0 mm/memcontrol.c:4523
 __read_swap_cache_async+0x2b7/0x520 mm/swap_state.c:516
 swap_cluster_readahead+0x37e/0x3f0 mm/swap_state.c:699
 swapin_readahead+0xe4/0x760 mm/swap_state.c:882
 do_swap_page+0x3da/0x1ef0 mm/memory.c:4119
 handle_pte_fault mm/memory.c:5524 [inline]
 __handle_mm_fault mm/memory.c:5664 [inline]
 handle_mm_fault+0x8cb/0x2a30 mm/memory.c:5832
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read to 0xffff888116020668 of 4 bytes by task 7223 on cpu 1:
 mem_cgroup_iter+0xba/0x380 mm/memcontrol.c:1018
 shrink_node_memcgs mm/vmscan.c:5849 [inline]
 shrink_node+0x458/0x1d40 mm/vmscan.c:5928
 shrink_zones mm/vmscan.c:6172 [inline]
 do_try_to_free_pages+0x3c6/0xc50 mm/vmscan.c:6234
 try_to_free_mem_cgroup_pages+0x1f3/0x4f0 mm/vmscan.c:6566
 try_charge_memcg+0x2bc/0x810 mm/memcontrol.c:2210
 try_charge mm/memcontrol-v1.h:20 [inline]
 charge_memcg mm/memcontrol.c:4438 [inline]
 mem_cgroup_swapin_charge_folio+0x107/0x1a0 mm/memcontrol.c:4523
 __read_swap_cache_async+0x2b7/0x520 mm/swap_state.c:516
 swap_cluster_readahead+0x276/0x3f0 mm/swap_state.c:680
 swapin_readahead+0xe4/0x760 mm/swap_state.c:882
 do_swap_page+0x3da/0x1ef0 mm/memory.c:4119
 handle_pte_fault mm/memory.c:5524 [inline]
 __handle_mm_fault mm/memory.c:5664 [inline]
 handle_mm_fault+0x8cb/0x2a30 mm/memory.c:5832
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

value changed: 0x00000ae3 -> 0x00000ae5

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 7223 Comm: syz.0.722 Not tainted 6.11.0-rc7-syzkaller-00017-gbc83b4d1f086 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
==================================================================