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BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru

read-write to 0xffff888237d25e68 of 1 bytes by task 3633 on cpu 1:
 folio_batch_add include/linux/pagevec.h:77 [inline]
 __folio_batch_add_and_move mm/swap.c:194 [inline]
 folio_add_lru+0xa5/0x1f0 mm/swap.c:505
 folio_add_lru_vma+0x49/0x70 mm/swap.c:524
 do_anonymous_page mm/memory.c:5047 [inline]
 do_pte_missing mm/memory.c:4158 [inline]
 handle_pte_fault mm/memory.c:5997 [inline]
 __handle_mm_fault mm/memory.c:6140 [inline]
 handle_mm_fault+0x27fa/0x2c00 mm/memory.c:6309
 faultin_page mm/gup.c:1193 [inline]
 __get_user_pages+0x102c/0x2050 mm/gup.c:1491
 __get_user_pages_locked mm/gup.c:1757 [inline]
 get_user_pages_remote+0x1dc/0x7a0 mm/gup.c:2661
 get_arg_page+0x8e/0x1e0 fs/exec.c:157
 copy_string_kernel+0x134/0x340 fs/exec.c:616
 kernel_execve+0x3d6/0x660 fs/exec.c:1955
 call_usermodehelper_exec_async+0x197/0x250 kernel/umh.c:109
 ret_from_fork+0x4e/0x60 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff888237d25e68 of 1 bytes by task 3630 on cpu 0:
 folio_batch_count include/linux/pagevec.h:56 [inline]
 cpu_needs_drain mm/swap.c:773 [inline]
 __lru_add_drain_all+0x12b/0x3f0 mm/swap.c:867
 lru_cache_disable+0x1f/0x30 mm/swap.c:920
 do_pages_move mm/migrate.c:2279 [inline]
 kernel_move_pages mm/migrate.c:2533 [inline]
 __do_sys_move_pages mm/migrate.c:2547 [inline]
 __se_sys_move_pages+0x2a2/0x1340 mm/migrate.c:2542
 __x64_sys_move_pages+0x78/0x90 mm/migrate.c:2542
 x64_sys_call+0x2eab/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:280
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd0/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x15 -> 0x16

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3630 Comm: syz.3.53 Not tainted 6.15.0-syzkaller-01958-g785cdec46e92 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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