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BUG: KCSAN: data-race in __anon_vma_prepare / lock_vma_under_rcu

write to 0xffff888139f873b8 of 8 bytes by task 31570 on cpu 0:
 __anon_vma_prepare+0x144/0x2b0 mm/rmap.c:214
 anon_vma_prepare include/linux/rmap.h:159 [inline]
 wp_page_copy mm/memory.c:3066 [inline]
 do_wp_page+0x13ec/0x1fd0 mm/memory.c:3432
 handle_pte_fault mm/memory.c:4964 [inline]
 __handle_mm_fault mm/memory.c:5089 [inline]
 handle_mm_fault+0x5ba/0x2c60 mm/memory.c:5243
 do_user_addr_fault arch/x86/mm/fault.c:1440 [inline]
 handle_page_fault arch/x86/mm/fault.c:1534 [inline]
 exc_page_fault+0x67e/0x780 arch/x86/mm/fault.c:1590
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

read to 0xffff888139f873b8 of 8 bytes by task 31568 on cpu 1:
 lock_vma_under_rcu+0xb6/0x290 mm/memory.c:5288
 do_user_addr_fault arch/x86/mm/fault.c:1341 [inline]
 handle_page_fault arch/x86/mm/fault.c:1534 [inline]
 exc_page_fault+0x16e/0x780 arch/x86/mm/fault.c:1590
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

value changed: 0x0000000000000000 -> 0xffff8881047f1240

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 31568 Comm: syz-executor.2 Tainted: G        W          6.4.0-rc7-syzkaller-00204-g61dabacdad4e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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