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BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru_vma

read-write to 0xffff888237d29c88 of 1 bytes by task 25631 on cpu 1:
 folio_batch_add include/linux/pagevec.h:74 [inline]
 folio_batch_add_and_move mm/swap.c:231 [inline]
 folio_add_lru mm/swap.c:517 [inline]
 folio_add_lru_vma+0x6c/0x160 mm/swap.c:537
 wp_page_copy mm/memory.c:3206 [inline]
 do_wp_page+0x1551/0x1f20 mm/memory.c:3525
 handle_pte_fault mm/memory.c:5180 [inline]
 __handle_mm_fault mm/memory.c:5305 [inline]
 handle_mm_fault+0xb80/0x27c0 mm/memory.c:5470
 do_user_addr_fault arch/x86/mm/fault.c:1355 [inline]
 handle_page_fault arch/x86/mm/fault.c:1498 [inline]
 exc_page_fault+0x401/0x6d0 arch/x86/mm/fault.c:1554
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

read to 0xffff888237d29c88 of 1 bytes by task 25632 on cpu 0:
 folio_batch_count include/linux/pagevec.h:53 [inline]
 cpu_needs_drain mm/swap.c:795 [inline]
 __lru_add_drain_all+0x137/0x420 mm/swap.c:889
 lru_add_drain_all+0x10/0x20 mm/swap.c:905
 memfd_wait_for_pins mm/memfd.c:92 [inline]
 memfd_add_seals mm/memfd.c:218 [inline]
 memfd_fcntl+0x907/0xeb0 mm/memfd.c:252
 do_fcntl+0x420/0xeb0 fs/fcntl.c:416
 __do_sys_fcntl fs/fcntl.c:456 [inline]
 __se_sys_fcntl+0xc4/0x180 fs/fcntl.c:441
 __x64_sys_fcntl+0x43/0x50 fs/fcntl.c:441
 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: 0x03 -> 0x04

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 25632 Comm: syz-executor.4 Not tainted 6.8.0-rc5-syzkaller-00329-gab0a97cffa0b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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