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BUG: KCSAN: data-race in do_try_to_free_pages / shrink_node

write to 0xffff88813aec6870 of 8 bytes by task 22444 on cpu 1:
 snapshot_refaults mm/vmscan.c:6745 [inline]
 do_try_to_free_pages+0x900/0xc80 mm/vmscan.c:6807
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7099
 try_charge_memcg+0x27d/0xd20 mm/memcontrol.c:2724
 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3138
 __memcg_kmem_charge_page+0x1d5/0x2c0 mm/memcontrol.c:3164
 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4785
 alloc_pages+0x3e1/0x4e0
 vm_area_alloc_pages mm/vmalloc.c:3009 [inline]
 __vmalloc_area_node mm/vmalloc.c:3085 [inline]
 __vmalloc_node_range+0x6d2/0xea0 mm/vmalloc.c:3266
 kvmalloc_node+0x121/0x160 mm/util.c:629
 kvmalloc include/linux/slab.h:697 [inline]
 xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192
 do_replace net/ipv4/netfilter/arp_tables.c:970 [inline]
 do_arpt_set_ctl+0x615/0x1390 net/ipv4/netfilter/arp_tables.c:1421
 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0xe6/0x100 net/ipv4/ip_sockglue.c:1467
 tcp_setsockopt+0x90/0xa0 net/ipv4/tcp.c:3804
 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3657
 __sys_setsockopt+0x1c3/0x230 net/socket.c:2273
 __do_sys_setsockopt net/socket.c:2284 [inline]
 __se_sys_setsockopt net/socket.c:2281 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2281
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff88813aec6870 of 8 bytes by task 22433 on cpu 0:
 prepare_scan_count mm/vmscan.c:2924 [inline]
 shrink_node+0x3a8/0x1500 mm/vmscan.c:6485
 shrink_zones mm/vmscan.c:6722 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6784
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7099
 try_charge_memcg+0x27d/0xd20 mm/memcontrol.c:2724
 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3138
 __memcg_kmem_charge_page+0x1d5/0x2c0 mm/memcontrol.c:3164
 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4785
 alloc_pages+0x3e1/0x4e0
 vm_area_alloc_pages mm/vmalloc.c:3009 [inline]
 __vmalloc_area_node mm/vmalloc.c:3085 [inline]
 __vmalloc_node_range+0x6d2/0xea0 mm/vmalloc.c:3266
 kvmalloc_node+0x121/0x160 mm/util.c:629
 kvmalloc include/linux/slab.h:697 [inline]
 xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192
 do_replace net/ipv4/netfilter/arp_tables.c:970 [inline]
 do_arpt_set_ctl+0x615/0x1390 net/ipv4/netfilter/arp_tables.c:1421
 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0xe6/0x100 net/ipv4/ip_sockglue.c:1467
 tcp_setsockopt+0x90/0xa0 net/ipv4/tcp.c:3804
 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3657
 __sys_setsockopt+0x1c3/0x230 net/socket.c:2273
 __do_sys_setsockopt net/socket.c:2284 [inline]
 __se_sys_setsockopt net/socket.c:2281 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2281
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000355 -> 0x0000000000000356

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 22433 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller-00234-g547cc9be86f4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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