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BUG: KCSAN: data-race in __refill_stock / drain_all_stock

read-write to 0xffff888237c2a990 of 4 bytes by task 29285 on cpu 0:
 __refill_stock+0x7f/0xb0 mm/memcontrol.c:2384
 refill_stock mm/memcontrol.c:2395 [inline]
 obj_cgroup_uncharge_pages+0x134/0x200 mm/memcontrol.c:3254
 __memcg_kmem_uncharge_page+0x53/0x100 mm/memcontrol.c:3327
 free_pages_prepare mm/page_alloc.c:1097 [inline]
 free_unref_page_prepare+0x61/0x2c0 mm/page_alloc.c:2346
 free_unref_page+0x34/0x170 mm/page_alloc.c:2486
 vfree+0x27c/0x410 mm/vmalloc.c:2842
 __vmalloc_area_node mm/vmalloc.c:3203 [inline]
 __vmalloc_node_range+0xddb/0xea0 mm/vmalloc.c:3320
 kvmalloc_node+0x121/0x160 mm/util.c:642
 kvmalloc include/linux/slab.h:728 [inline]
 xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192
 do_replace net/ipv6/netfilter/ip6_tables.c:1139 [inline]
 do_ip6t_set_ctl+0x633/0x17f0 net/ipv6/netfilter/ip6_tables.c:1636
 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x11c/0x130 net/ipv6/ipv6_sockglue.c:997
 rawv6_setsockopt+0x21e/0x410 net/ipv6/raw.c:1048
 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3715
 do_sock_setsockopt net/socket.c:2311 [inline]
 __sys_setsockopt+0x1d4/0x240 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2340
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888237c2a990 of 4 bytes by task 29292 on cpu 1:
 drain_all_stock+0xd3/0x2e0 mm/memcontrol.c:2425
 try_charge_memcg+0x6c2/0xd20 mm/memcontrol.c:2770
 obj_cgroup_charge_pages+0xbd/0x1c0 mm/memcontrol.c:3275
 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3301
 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4584
 alloc_pages_mpol+0xb1/0x1d0 mm/mempolicy.c:2133
 alloc_pages+0xe0/0x100 mm/mempolicy.c:2204
 vm_area_alloc_pages mm/vmalloc.c:3063 [inline]
 __vmalloc_area_node mm/vmalloc.c:3139 [inline]
 __vmalloc_node_range+0x6d2/0xea0 mm/vmalloc.c:3320
 kvmalloc_node+0x121/0x160 mm/util.c:642
 kvmalloc include/linux/slab.h:728 [inline]
 xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192
 do_replace net/ipv6/netfilter/ip6_tables.c:1139 [inline]
 do_ip6t_set_ctl+0x633/0x17f0 net/ipv6/netfilter/ip6_tables.c:1636
 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x11c/0x130 net/ipv6/ipv6_sockglue.c:997
 rawv6_setsockopt+0x21e/0x410 net/ipv6/raw.c:1048
 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3715
 do_sock_setsockopt net/socket.c:2311 [inline]
 __sys_setsockopt+0x1d4/0x240 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2340
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x00000039 -> 0x00000008

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 29292 Comm: syz-executor.2 Not tainted 6.7.0-syzkaller-06264-g70d201a40823 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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