================================================================== BUG: KCSAN: data-race in drain_all_stock / try_charge_memcg write to 0xffff888237c2a690 of 4 bytes by task 23681 on cpu 0: consume_stock mm/memcontrol.c:2322 [inline] try_charge_memcg+0xb46/0xd20 mm/memcontrol.c:2743 obj_cgroup_charge_pages+0xbd/0x1c0 mm/memcontrol.c:3301 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3327 __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+0x6ee/0xec0 mm/vmalloc.c:3320 kvmalloc_node+0x121/0x170 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+0x633/0x1800 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:3716 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+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff888237c2a690 of 4 bytes by task 23728 on cpu 1: drain_all_stock+0xd3/0x2e0 mm/memcontrol.c:2430 try_charge_memcg+0x6c2/0xd20 mm/memcontrol.c:2790 obj_cgroup_charge_pages+0xbd/0x1c0 mm/memcontrol.c:3301 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3327 __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+0x6ee/0xec0 mm/vmalloc.c:3320 kvmalloc_node+0x121/0x170 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+0x633/0x1800 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:3716 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+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0x0000001a -> 0x00000002 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 23728 Comm: syz-executor.0 Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 ==================================================================