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BUG: KCSAN: data-race in __anon_vma_prepare / lock_vma_under_rcu

write to 0xffff888133c9ba48 of 8 bytes by task 9139 on cpu 1:
 __anon_vma_prepare+0x147/0x2b0 mm/rmap.c:214
 vmf_anon_prepare mm/memory.c:3071 [inline]
 wp_page_copy mm/memory.c:3109 [inline]
 do_wp_page+0x1593/0x1f40 mm/memory.c:3510
 handle_pte_fault mm/memory.c:5054 [inline]
 __handle_mm_fault mm/memory.c:5179 [inline]
 handle_mm_fault+0xe5d/0x2dd0 mm/memory.c:5344
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2f7/0x6c0 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

read to 0xffff888133c9ba48 of 8 bytes by task 9138 on cpu 0:
 lock_vma_under_rcu+0x16a/0x2a0 mm/memory.c:5509
 do_user_addr_fault arch/x86/mm/fault.c:1356 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x164/0x6c0 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

value changed: 0x0000000000000000 -> 0xffff8881329e1dd0

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 9138 Comm: syz-executor.3 Not tainted 6.7.0-rc2-syzkaller-00095-gd3fa86b1a7b4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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