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BUG: KCSAN: data-race in __anon_vma_prepare / handle_mm_fault

write to 0xffff8881073541c0 of 8 bytes by task 19168 on cpu 0:
 __anon_vma_prepare+0x147/0x2c0 mm/rmap.c:214
 anon_vma_prepare include/linux/rmap.h:164 [inline]
 do_anonymous_page mm/memory.c:4428 [inline]
 do_pte_missing mm/memory.c:3876 [inline]
 handle_pte_fault mm/memory.c:5298 [inline]
 __handle_mm_fault mm/memory.c:5439 [inline]
 handle_mm_fault+0x1aea/0x27e0 mm/memory.c:5604
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2f5/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
 __put_user_4+0x11/0x20 arch/x86/lib/putuser.S:86
 __sys_socketpair+0xba/0x430 net/socket.c:1756
 __do_sys_socketpair net/socket.c:1822 [inline]
 __se_sys_socketpair net/socket.c:1819 [inline]
 __x64_sys_socketpair+0x52/0x60 net/socket.c:1819
 do_syscall_64+0xd3/0x1d0
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

read to 0xffff8881073541c0 of 8 bytes by task 19167 on cpu 1:
 anon_vma_prepare include/linux/rmap.h:161 [inline]
 do_anonymous_page mm/memory.c:4428 [inline]
 do_pte_missing mm/memory.c:3876 [inline]
 handle_pte_fault mm/memory.c:5298 [inline]
 __handle_mm_fault mm/memory.c:5439 [inline]
 handle_mm_fault+0xcc4/0x27e0 mm/memory.c:5604
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2f5/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
 __put_user_4+0x11/0x20 arch/x86/lib/putuser.S:86
 __sys_socketpair+0xba/0x430 net/socket.c:1756
 __do_sys_socketpair net/socket.c:1822 [inline]
 __se_sys_socketpair net/socket.c:1819 [inline]
 __x64_sys_socketpair+0x52/0x60 net/socket.c:1819
 do_syscall_64+0xd3/0x1d0
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

value changed: 0x0000000000000000 -> 0xffff888107e39410

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 19167 Comm: syz-executor.2 Tainted: G        W          6.8.0-syzkaller-13213-g70293240c5ce #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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