================================================================== BUG: KCSAN: data-race in __refill_stock / drain_all_stock read-write to 0xffff888237c2a3c0 of 4 bytes by task 25658 on cpu 0: __refill_stock+0x7f/0xb0 mm/memcontrol.c:2364 refill_stock mm/memcontrol.c:2375 [inline] obj_cgroup_uncharge_pages+0xfb/0x1a0 mm/memcontrol.c:3234 __memcg_kmem_uncharge_page+0x53/0x100 mm/memcontrol.c:3307 free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page_prepare+0x7c/0x2a0 mm/page_alloc.c:2347 free_unref_page+0x34/0x170 mm/page_alloc.c:2487 vfree+0x27c/0x410 mm/vmalloc.c:2842 __vmalloc_area_node mm/vmalloc.c:3203 [inline] __vmalloc_node_range+0xddb/0xea0 mm/vmalloc.c:3320 __bpf_map_area_alloc kernel/bpf/syscall.c:308 [inline] bpf_map_area_alloc+0xd8/0x100 kernel/bpf/syscall.c:315 bloom_map_alloc+0x1aa/0x2b0 kernel/bpf/bloom_filter.c:134 map_create+0x713/0xa40 kernel/bpf/syscall.c:1210 __sys_bpf+0x62a/0x780 kernel/bpf/syscall.c:5365 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff888237c2a3c0 of 4 bytes by task 25656 on cpu 1: drain_all_stock+0xd3/0x2d0 mm/memcontrol.c:2405 try_charge_memcg+0x6c5/0xd30 mm/memcontrol.c:2750 try_charge mm/memcontrol.c:2884 [inline] charge_memcg mm/memcontrol.c:7210 [inline] mem_cgroup_swapin_charge_folio+0x107/0x190 mm/memcontrol.c:7295 __read_swap_cache_async+0x2f6/0x550 mm/swap_state.c:490 swap_cluster_readahead+0x27c/0x4c0 mm/swap_state.c:655 swapin_readahead+0xe9/0x7f0 mm/swap_state.c:878 do_swap_page+0x4a0/0x1670 mm/memory.c:3884 handle_pte_fault mm/memory.c:5042 [inline] __handle_mm_fault mm/memory.c:5180 [inline] handle_mm_fault+0xa36/0x2dd0 mm/memory.c:5345 do_user_addr_fault arch/x86/mm/fault.c:1364 [inline] handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x3ff/0x6c0 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 value changed: 0x00000040 -> 0x0000000a Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 25656 Comm: syz-executor.1 Not tainted 6.7.0-rc6-syzkaller-00303-g3f82f1c3a036 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ==================================================================