================================================================== BUG: KCSAN: data-race in __delete_from_swap_cache / folio_mapping write to 0xffffea0004b293e8 of 8 bytes by task 3699 on cpu 1: __delete_from_swap_cache+0x1e8/0x280 mm/swap_state.c:161 delete_from_swap_cache+0x73/0xe0 mm/swap_state.c:180 folio_free_swap+0x188/0x1a0 mm/swapfile.c:1784 do_swap_page+0x1507/0x2430 mm/memory.c:4789 handle_pte_fault mm/memory.c:6055 [inline] __handle_mm_fault mm/memory.c:6195 [inline] handle_mm_fault+0x9a5/0x2c20 mm/memory.c:6364 do_user_addr_fault+0x3fe/0x1090 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x62/0xa0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffffea0004b293e8 of 8 bytes by task 3704 on cpu 0: folio_mapping+0xdd/0x120 mm/util.c:700 folio_evictable mm/internal.h:499 [inline] sort_folio mm/vmscan.c:4479 [inline] scan_folios mm/vmscan.c:4606 [inline] isolate_folios mm/vmscan.c:4702 [inline] evict_folios+0xdf0/0x3540 mm/vmscan.c:4732 try_to_shrink_lruvec+0x5b5/0x950 mm/vmscan.c:4907 lru_gen_shrink_lruvec mm/vmscan.c:5056 [inline] shrink_lruvec+0x22e/0x1b50 mm/vmscan.c:5815 shrink_node_memcgs mm/vmscan.c:6051 [inline] shrink_node+0x686/0x2120 mm/vmscan.c:6092 shrink_zones mm/vmscan.c:6336 [inline] do_try_to_free_pages+0x3f6/0xcd0 mm/vmscan.c:6398 try_to_free_mem_cgroup_pages+0x1ab/0x410 mm/vmscan.c:6726 try_charge_memcg+0x358/0x9e0 mm/memcontrol.c:2357 obj_cgroup_charge_pages+0xa6/0x150 mm/memcontrol.c:2800 __memcg_kmem_charge_page+0x9f/0x170 mm/memcontrol.c:2844 __alloc_frozen_pages_noprof+0x188/0x360 mm/page_alloc.c:5165 __alloc_pages_noprof+0x9/0x20 mm/page_alloc.c:5182 __alloc_pages_node_noprof include/linux/gfp.h:284 [inline] alloc_pages_node_noprof include/linux/gfp.h:311 [inline] vm_area_alloc_pages mm/vmalloc.c:3644 [inline] __vmalloc_area_node mm/vmalloc.c:3720 [inline] __vmalloc_node_range_noprof+0x709/0xe00 mm/vmalloc.c:3893 __bpf_map_area_alloc kernel/bpf/syscall.c:399 [inline] bpf_map_area_alloc+0xfa/0x150 kernel/bpf/syscall.c:406 bloom_map_alloc+0x1b8/0x2c0 kernel/bpf/bloom_filter.c:146 map_create+0x843/0xca0 kernel/bpf/syscall.c:1480 __sys_bpf+0x545/0x7b0 kernel/bpf/syscall.c:6011 __do_sys_bpf kernel/bpf/syscall.c:6139 [inline] __se_sys_bpf kernel/bpf/syscall.c:6137 [inline] __x64_sys_bpf+0x41/0x50 kernel/bpf/syscall.c:6137 x64_sys_call+0x2aea/0x2ff0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x000000000000442e -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3704 Comm: syz.3.63 Tainted: G W syzkaller #0 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 ================================================================== syz.3.63 (3704) used greatest stack depth: 9256 bytes left