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BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru_vma

read-write to 0xffff888237c2ac08 of 1 bytes by task 28609 on cpu 0:
 folio_batch_add include/linux/pagevec.h:77 [inline]
 folio_batch_add_and_move mm/swap.c:246 [inline]
 folio_add_lru mm/swap.c:532 [inline]
 folio_add_lru_vma+0x74/0x170 mm/swap.c:552
 do_anonymous_page mm/memory.c:4480 [inline]
 do_pte_missing mm/memory.c:3878 [inline]
 handle_pte_fault mm/memory.c:5300 [inline]
 __handle_mm_fault mm/memory.c:5441 [inline]
 handle_mm_fault+0x2312/0x27e0 mm/memory.c:5606
 do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x3eb/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read to 0xffff888237c2ac08 of 1 bytes by task 28608 on cpu 1:
 folio_batch_count include/linux/pagevec.h:56 [inline]
 cpu_needs_drain mm/swap.c:810 [inline]
 __lru_add_drain_all+0x137/0x420 mm/swap.c:904
 lru_add_drain_all+0x10/0x20 mm/swap.c:920
 memfd_wait_for_pins mm/memfd.c:87 [inline]
 memfd_add_seals mm/memfd.c:207 [inline]
 memfd_fcntl+0x7a3/0xc00 mm/memfd.c:241
 do_fcntl+0x473/0xec0 fs/fcntl.c:430
 __do_sys_fcntl fs/fcntl.c:472 [inline]
 __se_sys_fcntl+0xc4/0x180 fs/fcntl.c:457
 __x64_sys_fcntl+0x43/0x50 fs/fcntl.c:457
 x64_sys_call+0x28f7/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:73
 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+0x77/0x7f

value changed: 0x03 -> 0x04

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 28608 Comm: syz-executor.1 Tainted: G        W          6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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