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BUG: KCSAN: data-race in mas_replace_node / mas_state_walk

write to 0xffff888138bc4a00 of 8 bytes by task 24776 on cpu 1:
 mte_set_node_dead lib/maple_tree.c:320 [inline]
 mas_put_in_tree lib/maple_tree.c:1746 [inline]
 mas_replace_node+0x1b5/0x430 lib/maple_tree.c:1760
 mas_wr_node_store lib/maple_tree.c:3995 [inline]
 mas_wr_modify+0x287c/0x37d0 lib/maple_tree.c:4229
 mas_wr_store_entry+0x235/0x350 lib/maple_tree.c:4269
 mas_store_prealloc+0x155/0x2b0 lib/maple_tree.c:5460
 vma_iter_store mm/internal.h:1126 [inline]
 vma_complete+0x28f/0x640 mm/mmap.c:532
 __split_vma+0x554/0x5d0 mm/mmap.c:2408
 split_vma+0x73/0x90 mm/mmap.c:2434
 mprotect_fixup+0x52a/0x650 mm/mprotect.c:644
 do_mprotect_pkey+0x641/0x920 mm/mprotect.c:819
 __do_sys_mprotect mm/mprotect.c:840 [inline]
 __se_sys_mprotect mm/mprotect.c:837 [inline]
 __x64_sys_mprotect+0x48/0x50 mm/mprotect.c:837
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888138bc4a00 of 8 bytes by task 24790 on cpu 0:
 ma_dead_node lib/maple_tree.c:555 [inline]
 mtree_range_walk lib/maple_tree.c:2828 [inline]
 mas_state_walk+0x43d/0x5d0 lib/maple_tree.c:3712
 mas_walk+0x31/0x120 lib/maple_tree.c:4888
 lock_vma_under_rcu+0x8d/0x2a0 mm/memory.c:5439
 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: 0xffff888103eb5c06 -> 0xffff888138bc4a00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 24790 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-10265-gbabe393974de #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
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